WO2022168929A1 - Filling method and filling device - Google Patents

Filling method and filling device Download PDF

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Publication number
WO2022168929A1
WO2022168929A1 PCT/JP2022/004325 JP2022004325W WO2022168929A1 WO 2022168929 A1 WO2022168929 A1 WO 2022168929A1 JP 2022004325 W JP2022004325 W JP 2022004325W WO 2022168929 A1 WO2022168929 A1 WO 2022168929A1
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WO
WIPO (PCT)
Prior art keywords
nozzle
filling
paste
tip
cylinder
Prior art date
Application number
PCT/JP2022/004325
Other languages
French (fr)
Japanese (ja)
Inventor
敦之 伊澤
章夫 長岡
輝樹 田中
Original Assignee
田中貴金属工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 田中貴金属工業株式会社 filed Critical 田中貴金属工業株式会社
Priority to CN202280013459.8A priority Critical patent/CN116917204A/en
Publication of WO2022168929A1 publication Critical patent/WO2022168929A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B3/10—Methods of, or means for, filling the material into the containers or receptacles by application of pressure to material
    • B65B3/12—Methods of, or means for, filling the material into the containers or receptacles by application of pressure to material mechanically, e.g. by pistons or pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/18—Controlling escape of air from containers or receptacles during filling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B37/00—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged
    • B65B37/06—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged by pistons or pumps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
    • H01L21/52—Mounting semiconductor bodies in containers

Definitions

  • the present invention relates to a filling method and a filling device.
  • Patent Document 1 describes a dispenser syringe and a paste adhesive.
  • the dispenser syringe described in Patent Document 1 includes a cylinder containing a silver paste, which is a pasty adhesive, a nozzle cap detachably attached to a nozzle portion formed in the cylinder, and a nozzle cap detachably attached to the cylinder. It consists of a head cap and a piston movably arranged inside a cylinder for pumping the silver paste.
  • the nozzle cap has a closing portion that closes the passage through which the paste adhesive is ejected from the nozzle portion of the cylinder. It is described that a screw type is preferable as a method of fixing the nozzle cap mounting portion of the cylinder and the nozzle cap.
  • Patent Document 1 further states that if air or gas accumulated in the cavity of the passage of the nozzle portion formed in the cylinder exists as it is in the passage, it will cause blank shots when using silver paste, and the uniformity of the silver paste will be reduced. and the problem of impairing coating workability. Therefore, it is described that after filling the inside of the cylinder with the silver paste, the silver paste must be filled into the hollow portion of the passage of the nozzle portion. In addition, after the passage of the nozzle portion is filled with silver paste, air or gas enters the silver paste inside the cylinder through a slight gap between the nozzle portion and the nozzle cap. It has been pointed out that this is the cause of the problem of impairing the uniformity and coating workability of the silver paste. Therefore, in the dispenser injection barrel described in Patent Document 1, the nozzle cap is provided with a needle-like protruding portion that serves as a blocking portion that blocks the passage for ejecting the silver paste in the nozzle portion of the cylinder.
  • the dispersed state of the silver paste etc. will become non-uniform (e.g. , bias of silver particles).
  • the nozzle cap is provided with a needle-like projecting portion that serves as a blocking portion that blocks the passage for ejecting the silver paste in the nozzle portion of the cylinder, the nozzle portion can be removed from the nozzle. When removing the cap, air may enter the nozzle. Therefore, it is desired to provide a syringe filling method and a filling apparatus capable of suppressing air bubbles from entering the nozzle portion during use.
  • the present invention has been made in view of such a situation, and its object is to provide a syringe filling method and a filling apparatus capable of suppressing air bubbles from entering the nozzle portion.
  • the filling method according to the present invention for achieving the above object includes: A cylindrical body portion filled with paste, a cylindrical nozzle portion provided at the tip of the body portion and thinner than the body portion, and a bottomed cylindrical nozzle portion fitted to the tip of the nozzle portion.
  • a method of filling the paste into a syringe that has a cap and ejects the paste from a tip opening of the nozzle part A filling step of discharging the paste from a filling nozzle and filling the internal space of the body and the nozzle with the paste, In the filling step, the paste is started to be discharged from the filling nozzle while the filling nozzle is inserted into the cylinder of the nozzle portion.
  • the filling method according to the present invention further comprises further comprising an inserting step of inserting the filling nozzle into the cylinder of the nozzle portion through the cylinder of the body;
  • the filling step may be performed after the inserting step is completed.
  • the filling method according to the present invention further comprises In the inserting step, the filling nozzle is inserted into the cylinder of the nozzle portion until the tip of the filling nozzle protrudes from the tip opening of the nozzle portion, In the filling step, the paste may be started to be discharged from the filling nozzle in a state in which the tip of the filling nozzle protrudes from the tip opening of the nozzle portion.
  • the filling method according to the present invention further comprises The filling step includes a first filling step of discharging the paste from the filling nozzle at a first discharge speed while pulling the filling nozzle out of the nozzle portion at a first drawing speed; a second filling step of discharging the paste from the filling nozzle at a second discharge speed while withdrawing the filling nozzle from the nozzle portion or the body portion at a second drawing speed;
  • the second drawing speed is slower than the first drawing speed,
  • the second ejection speed may be the same as or faster than the first ejection speed.
  • the filling method according to the present invention further comprises
  • the second drawing speed may be increased as the material is drawn out from the nozzle section.
  • the filling method according to the present invention further comprises In the inserting step, the tip of the filling nozzle may be inserted along the inner wall of the nozzle portion.
  • a filling device for achieving the above object, A cylindrical body portion filled with paste, a cylindrical nozzle portion provided at the tip of the body portion and thinner than the body portion, and a bottomed cylindrical nozzle portion fitted to the tip of the nozzle portion.
  • a filling device that has a cap and fills the paste into a syringe that discharges the paste from the tip opening of the nozzle part, a filling nozzle that discharges the paste and fills the internal space of the body and the nozzle with the paste; a control unit that controls ejection of the paste by the filling nozzle, The control unit starts discharging the paste from the filling nozzle in a state in which the filling nozzle is inserted into the cylinder of the nozzle unit, and fills the internal space of the body and the nozzle unit with the paste. .
  • the filling device further comprises The control unit inserts the filling nozzle into the cylinder of the nozzle part through the cylinder of the body part until the tip of the filling nozzle protrudes from the tip opening of the nozzle part, and the tip of the filling nozzle
  • the paste may be started to be discharged from the filling nozzle in a state of protruding from the tip opening of the nozzle portion, and the paste may be filled in the inner space of the body portion and the nozzle portion.
  • FIG. 4 is a partially enlarged view for explaining the structure of the tip of the syringe;
  • FIG. 4 is an explanatory diagram of a state in which the filling nozzle is inserted into the syringe;
  • It is a functional block diagram of the filling device of this embodiment.
  • It is explanatory drawing of the filling method of this embodiment.
  • It is a time chart in the filling method of this embodiment.
  • FIG. 4 is an explanatory diagram of the state of the nozzle portion of the filled syringe with the cap removed.
  • FIG. 10 is a diagram illustrating the configuration of a filled syringe with the rear end opening sealed; 4 is another time chart in the filling method of this embodiment.
  • FIG. 1 shows a syringe 1 as a container using the filling method according to this embodiment.
  • FIG. 2 shows a filling device M for carrying out the filling method according to this embodiment.
  • the syringe 1, as shown in FIG. 1, is a container that can be filled with a paste P and that can discharge the filled paste P.
  • the specific shape of the syringe 1 shown in FIG. 1 is merely an example for describing the present embodiment.
  • the filling method according to the present embodiment can be carried out even when the dimensions and dimensional ratios of the parts of the syringe 1 are different from those shown in FIG.
  • the filling device M can implement the filling method described in this embodiment by adding a deformation corresponding to the shape such as the size of the syringe 1 .
  • the syringe 1 is provided at a cylindrical body portion 10 filled with the paste P, a tip portion of the body portion 10, a cylindrical nozzle portion 11 thinner than the body portion, and a tip end of the nozzle portion 11. It has a cylindrical cap 2 with a bottom.
  • the syringe 1 can discharge the paste P from the tip opening of the nozzle part 11 in a state where the cap 2 is removed from the nozzle part 11 and opened.
  • the syringe 1 can be fitted with a plunger 18 that is inserted into the cylinder of the barrel 10 .
  • the plunger 18 is pushed into the cylinder of the body 10 to push out the paste P filled in the cylinder of the body 10, and the nozzle part 11 can be discharged.
  • the paste P is filled in the barrel portion 10 after the nozzle portion 11 is sealed with the cap 2 so that no gap is formed between the nozzle portion 11 and the cap 2 .
  • the nozzle portion 11 side as viewed from the body portion 10 is defined as the front end side, and the opposite side is defined as the rear end side.
  • FIG. 2 shows the filling device M.
  • the filling device M is a device that fills the paste P into the syringe 1 .
  • FIG. 2 shows a state in which the syringe 1 is attached to the filling device M.
  • the clip portion 10b which is the rear end side of the body portion 10
  • the nozzle portion 11, which is the tip side of the body portion 10 is arranged on the lower side in the vertical direction.
  • the filling device M can fill the paste P into the barrel portion 10 of the syringe 1 , the nozzle portion 11 of the barrel portion 10 , and the cap 2 .
  • the filling device M includes a filling nozzle 6 that discharges the paste P and fills the interior space S (see FIG. 1) of the barrel portion 10 and the nozzle portion 11 of the syringe 1 with the paste P, and discharges the paste P from the filling nozzle 6. and a control unit 9 for controlling the
  • the filling device M further includes a tank 3 that stores the paste P to be supplied to the syringe 1, a liquid volume adjustment unit 4 that adjusts the amount of paste P supplied from the tank 3 to the filling nozzle 6, and a filling nozzle 6.
  • a tank 3 that stores the paste P to be supplied to the syringe 1
  • a liquid volume adjustment unit 4 that adjusts the amount of paste P supplied from the tank 3 to the filling nozzle 6, and a filling nozzle 6.
  • a case of having an elevating unit 5 that moves up and down, a holding unit 7 that holds the syringe 1, and a supporting body 8 that is composed of a column or the like that supports the elevating unit 5 and the holding unit 7 is described as an example.
  • the upward direction in the vertical direction is defined as the top
  • the downward direction is defined as the bottom.
  • the front end side of the syringe 1 corresponds to the bottom side of the filling device M
  • the rear end side of the syringe 1 corresponds to the top side of the filling device M.
  • the control unit 9 starts discharging the paste P from the filling nozzle 6 in a state in which the filling nozzle 6 is inserted into the cylinder of the nozzle portion 11 of the syringe 1, and the inner space of the barrel portion 10 and the nozzle portion 11 of the syringe 1 is discharged. S (see FIG. 1) is filled with paste P.
  • the body 10 is a resin container made of polyolefin or the like.
  • An internal space S that can be filled with the paste P is formed in the body portion 10 .
  • the body portion 10 includes a cylindrical straight body portion 10a, a nozzle portion 11 formed at the tip of the straight body portion 10a, and a tip end portion of the straight body portion 10a, and is fitted to the outside of the nozzle portion 11. It has a cylindrical sleeve 12 with a threaded portion 13 formed on the wall surface of the cylinder, and a clip portion 10b formed at the rear end portion of the straight body portion 10a.
  • the straight body portion 10a, the nozzle portion 11, the sleeve 12 and the clip portion 10b are integrally molded by injection molding or the like.
  • the body portion 10 is transparent because the state of the paste P can be visually observed from the outside and whether or not the filling state of the paste P is appropriate can be grasped from the outside.
  • drum 10 is transparent is demonstrated.
  • space S1 the space inside the cylinder of the straight body part 10a among the internal spaces S is called space S1 (refer FIG. 3).
  • the straight body portion 10a has an outer diameter of 10 mm to 20 mm.
  • the length in the direction along the axis Y is about 60 mm to 120 mm.
  • the thickness is 0.5 mm to 2 mm. Note that these outer diameter, length and thickness are examples of the shape and size of the straight body portion 10a, and the present embodiment is not limited to such shape and size.
  • the clip portion 10b is formed in the shape of a rib extending radially outward of the body portion 10 at the rear end portion of the straight body portion 10a.
  • the clip portion 10b is formed to improve ease of use of the syringe 1 (it can be used for gripping and supporting during use), and can be omitted from the syringe 1 .
  • the nozzle part 11 is a cylindrical member that discharges the paste P filled in the body part 10 .
  • the nozzle portion 11 has a shape that tapers slightly from the rear end side toward the front end side.
  • the outer diameter of the nozzle portion 11 is formed smaller than the outer diameter of the straight body portion 10a.
  • the inside of the cylinder of the nozzle portion 11 and the inside of the cylinder of the straight body portion 10a communicate with each other. Below, the space inside the cylinder of the nozzle part 11 among the internal spaces S is called space S2 (refer FIG. 3).
  • the nozzle portion 11 in this embodiment is formed to extend along the axis Y from the tip of a tapered portion 10c formed on the tip side of the straight body portion 10a.
  • the nozzle portion 11 has a shape in which the outer diameter is slightly reduced from the rear end side to the front end side and the front end side is narrowed.
  • the axis X of the nozzle portion 11 is arranged along the axis Y of the straight body portion 10a. In this embodiment, as an example, the axis X overlaps with the axis Y and is coaxial.
  • the nozzle part 11 has an outer diameter of 3 mm to 6 mm, for example. Also, the inner diameter is 2 mm to 4 mm. Moreover, the length in the direction along the axis X is about 8 mm to 15 mm. And the thickness is 0.5 mm to 2 mm. Note that these outer diameters and the like are examples of the shape and size of the nozzle portion 11, and the present embodiment is not limited to such shapes and sizes. In this embodiment, a case where the inner diameter of the nozzle portion 11 is 2.4 mm will be described as an example.
  • the sleeve 12 is a fixing seat for fixing the cap 2, as shown in FIG.
  • the sleeve 12 is formed in a cylindrical shape, and is provided at the tip of the straight body portion 10a in a positional relationship in which the nozzle portion 11 is fitted inside the cylinder.
  • the sleeve 12 is formed so as to be coaxial with the axis X of the nozzle portion 11 .
  • the outer diameter of the sleeve 12 is formed smaller than the straight body portion 10a, but the outer diameter of the sleeve 12 may be formed larger than the straight body portion 10a.
  • a threaded portion 13 is formed as a double thread (female thread in this embodiment) on the inner peripheral surface of the sleeve 12 .
  • the cap 2 is a bottomed cylindrical lid member made of resin such as polyolefin.
  • the cap 2 is transparent in this embodiment. It is preferable that the cap 2 is transparent because the state of the paste P can be visually recognized from the outside, but the cap 2 is not limited to being transparent.
  • the cap 2 includes a bottomed tubular cap portion 20 that seals the tip portion 11a of the nozzle portion 11, and an engaging portion 21 that serves as a knob when the cap 2 is attached and detached and engages with a cap attachment/detachment device or the like.
  • the shape of the inside of the cylinder of the cap portion 20 may be such that the inner diameter becomes slightly smaller from the rear end side to the front end side and narrows toward the front end side, or conversely, the inner diameter expands from the rear end side to the front end side. It may be
  • the inner peripheral surface of the cylinder of the cap portion 20 is formed along the outer peripheral surface of the nozzle portion 11 .
  • a cap-side threaded portion 23 that can be screwed with the threaded portion 13 of the sleeve 12 is formed on the outer peripheral surface of the cap portion 20 .
  • the cap-side threaded portion 23 is a double thread (a male thread in this embodiment).
  • the cap 2 is screwed onto the sleeve 12 and can be fixed to the barrel 10 by means of a screw connection to the sleeve 12 .
  • the cap 2 is fitted over the tip of the nozzle portion 11 in such a state that it is screwed and connected to seal the tip opening of the nozzle portion 11 .
  • the nozzle portion 11 fits inside the cylinder of the cap portion 20. At this time, at least a portion of the inner peripheral surface of the cylinder of the cap portion 20 contacts the outer peripheral surface of the nozzle portion 11 to seal the tip portion 11a of the nozzle portion 11 .
  • the tip portion 11a of the nozzle portion 11 and the bottom surface 20a of the cap portion 20 are separated from each other.
  • the tip portion 11 a of the nozzle portion 11 and the cylinder bottom surface 20 a are separated by a distance h equal to or greater than the inner diameter d of the tip portion 11 a of the nozzle portion 11 .
  • the distance h between the tip portion 11a and the bottom surface 20a is defined as the maximum distance from the tip portion 11a to the bottom surface 20a in the direction along the axis X.
  • the distance h is preferably equal to or greater than the inner diameter d of the nozzle portion 11, as will be described later.
  • the distance h is three times or less than the inner diameter d, it is usually sufficient. In this embodiment, the distance h is 3.0 mm and the inner diameter d is 1.5 mm.
  • the tip surface of the nozzle portion 11 in FIG. 3, the surface on the tip side of the tip portion 11a, the end surface on the tip side of the tube of the nozzle portion 11
  • the inner surface of the cap portion 20 of the cap 2 are separated.
  • a cap internal space S3 is formed between the tip portion 11a and the cylinder bottom surface 20a.
  • An example of the paste P shown in FIG. 1 is a thermally conductive conductive adhesive in which silver fine particles as a conductive filler are dispersed in a solvent, a base resin, or the like.
  • Such silver paste is used, for example, as a bonding material (die-bonding material) for bonding a semiconductor element to a lead frame, a substrate, or the like.
  • the paste P as a thermally conductive adhesive contains, for example, a base resin such as an epoxy resin or an acrylic resin, a curing agent for the base resin, a thermoplastic resin, an organic solvent, etc., in addition to fine silver particles.
  • An example of the average particle size of the fine silver particles is 10 nm to 50 ⁇ m.
  • the particle size distribution of the fine silver particles may have a so-called single peak or two or more peaks.
  • the particle size distribution of the fine silver particles may have peaks in, for example, a submicron (300 nm) or less region and a greater than 1 ⁇ m region.
  • the shape of the fine silver particles is not limited to a specific shape, and may be spherical, rugby ball-like, needle-like, flake-like, or other irregular shapes.
  • the silver paste may contain metal oxide fine particles other than silver fine particles, such as zinc oxide, tin oxide, indium oxide, and composite oxides of tin and bismuth.
  • the paste P is, for example, a particle dispersion of the silver fine particles having a viscosity of about 5 to 90 Pas and a thixotropy of about 1.0 to 11.5.
  • the viscosity of the paste P a value measured with an RVT viscometer, HVT viscometer, or E-type viscometer can be adopted.
  • the viscosity of the paste P is 50 Pas or more, it is preferable to adopt the value measured by the HVT type viscometer or the E type viscometer.
  • the viscosity of the case can be adopted.
  • the thixotropy a value obtained by dividing the value of the viscosity measured at 25° C. and the rotor rotation speed of 10 rpm by the viscosity measured at 25° C. and the rotor rotation speed of 50 rpm can be adopted. .
  • the viscosity of the paste P is 5 Pas or more and less than 50 Pas
  • the value obtained by dividing the value of the viscosity when measured at 25°C and a rotor rotation speed of 0.5 rpm by the viscosity when measured at 25°C and a rotor rotation speed of 5 rpm is adopted. can be done.
  • the syringe 1 has a cap 2 threadedly connected to a sleeve 12 to seal the tip opening of the nozzle portion 11, and then a filling device M fills the barrel portion 10 and the cap 2 with a paste P. be filled.
  • the paste P is filled in the space S1, the space S2, and the space S3 in the cap of the syringe 1 shown in FIG.
  • the plunger 18 and the sealing lid 19 are inserted in this order from the opening at the rear end as shown in FIG. 1 to seal the opening at the rear end. be.
  • the syringe 1 becomes a paste-filled container, and is used as a paste P supply container (so-called cartridge) in a paste P applicator, a bonding device, or the like.
  • the filling state of the paste P in the syringe 1 will be described later.
  • the filling device M includes a control unit 9 as a central control mechanism, a holding unit 7 holding a syringe 1 to which the paste P is supplied, and a straight body portion 10a of the body 10.
  • a lifting unit 5 having a cylinder 50 capable of moving up and down in a direction, a position detection unit 59 detecting the lifting position of the cylinder 50, a filling nozzle 6 that is lifted and lowered by the cylinder 50 and supplies and fills the paste P into the syringe 1, filling
  • a pressure detecting portion 49 for detecting the pressure of the paste P and a supporting body 8 for supporting them are provided.
  • the lifting section 5, the tank 3, the liquid volume adjustment section 4, and the filling nozzle 6 are arranged in this order from the top to the bottom.
  • the control unit 9 is a functional unit that controls the operation of the filling device M and serves as a central control mechanism of the filling device M.
  • the control unit 9 receives information relating to operation status and detection status from each part and sensors of the filling device M, and also sends operation commands to each part to control their operations. Details of the control unit 9 will be described later.
  • the holding part 7 is a jig that holds the syringe 1 to which the paste P is supplied.
  • the holding part 7 is formed, for example, in a cylindrical shape, and holds the syringe 1 by inserting the barrel part 10 of the syringe 1 into the inside of the cylinder.
  • the holding portion 7 holds the syringe 1 so that the axis Y of the straight body portion 10a of the body portion 10 extends in the vertical direction.
  • the elevating section 5 is an elevating mechanism for elevating the filling nozzle 6 .
  • the lifting unit 5 includes, for example, a drive mechanism such as an air cylinder, an electric actuator, or a motor such as a servomotor.
  • the elevating section 5 includes a cylinder 50 that is driven by the drive mechanism to be able to ascend and descend in the direction along the axis Y of the straight body portion 10a of the body section 10 (the same as the vertical direction in this embodiment).
  • the cylinder 50 is, for example, a slide mechanism or the like that is driven by the above-described drive mechanism capable of adjusting and controlling the elevation position, and realizes elevation operation by sliding operation.
  • the position detection unit 59 is a measuring device such as a position sensor that detects the elevation position of the filling nozzle 6 by the elevation unit 5 .
  • the position detection unit 59 may be of any position detection principle, such as an optical type or a pressure type.
  • the position detector 59 includes an optical position sensor, detects the vertical position (movement distance) of the cylinder 50, and sends position information to the controller 9 based on the detection result.
  • the control unit 9 can calculate the elevation position of the filling nozzle 6 based on the position information sent by the position detection unit 59 , and control the elevation position of the filling nozzle 6 by the elevation unit 5 . Further, the control unit 9 can calculate the lifting speed of the filling nozzle 6 based on the position information, and can control the lifting speed of the filling nozzle 6 by the lifting unit 5 .
  • the filling nozzle 6 is a nozzle device for discharging the paste P to fill the syringe 1 with the paste P.
  • the filling nozzle 6 is connected to the downstream side of the liquid volume adjusting section 4 .
  • the filling nozzle 6 is detachably fixed, for example, in a state of being suspended from the liquid volume adjusting section 4 .
  • the filling nozzle 6 includes a nozzle base portion 60 that communicates with the liquid volume adjustment portion 4 and is suspended and fixed to the liquid volume adjustment portion 4 and a nozzle-shaped needle 61 that is connected to the lower end side of the nozzle base portion 60 .
  • the nozzle base 60 is a cylindrical member through which the paste P can flow.
  • the nozzle base 60 supplies the paste P supplied from the liquid volume adjusting section 4 to the needle 61 .
  • the nozzle base 60 has, for example, a straight tubular shape.
  • the needle 61 discharges the paste P supplied from the nozzle base 60 into the straight body portion 10a of the body portion 10, the nozzle portion 11 of the body portion 10, and the cap 2. Fill with paste P.
  • the needle 61 has, for example, a straight tubular shape.
  • the outer diameter of the cylinder of the needle 61 is smaller than the outer diameter of the nozzle base 60 . Further, the outer diameter of the cylinder of the needle 61 is smaller than the inner diameter of the cap portion 20 of the cap 2 . Needle 61 is fixed to nozzle base 60 as an example.
  • the filling nozzle 6 may be prepared in advance by combining the nozzle base 60 and needles 61 of various sizes and shapes. An appropriate filling nozzle 6 may be selectable according to the size and shape of the syringe 1 .
  • the filling nozzle 6 is moved up and down by the lifting section 5, and the needle 61 is inserted into the cylinder of the body section 10 from the rear end side of the body section 10, as shown in FIG. As shown in FIG. 4, the filling nozzle 6 is moved up and down by the elevating unit 5, and as shown in FIG. It is possible to insert up to the inside. That is, the distal end portion 62 can advance and retreat in a range from the opening on the rear end side of the body portion 10 to the inside of the cylinder of the cap portion 20 .
  • the filling nozzle 6 can arbitrarily attach/detach and replace needles 61 of various lengths and thicknesses (inner diameter or outer diameter) with respect to the nozzle portion 11 . That is, the needle 61 can be arbitrarily exchanged according to the size and shape of the syringe 1 .
  • the needle 61 has an outer diameter of 1.5 mm to 2.5 mm. Also, the inner diameter is 1.0 mm to 2.0 mm. Also, the thickness is 0.15 mm to 0.40 mm. Note that these outer diameters and the like are examples of the shape and size of the needle 61, and the present embodiment is not limited to such shapes and sizes.
  • the length of the needle 61 in the axial direction of the tube is longer than the length of the nozzle portion 11 in the direction along the axis X, for example, from 130% of the length in the direction along the axis X of the nozzle portion 11. 250%.
  • the needle 61 of this embodiment will be described with an inner diameter of 1.5 mm as an example.
  • the tank 3 is a storage container that stores the paste P supplied to the syringe 1 by the filling nozzle 6.
  • the supply of the paste P from the tank 3 to the filling nozzle 6 can be performed by pressure feeding using the pressure of compressed air supplied from the compressor A, for example. Compressed air supplied from the compressor A is supplied to the tank 3 after having its pressure and flow rate adjusted by a regulator 41 and a controller 42 which will be described later.
  • the tank 3 supplies the paste P to the filling nozzle 6 via the liquid volume adjusting section 4 .
  • the tank 3 is fixed to the cylinder 50 and is moved up and down by the elevating section 5 by hydraulic pressure.
  • the liquid volume adjustment unit 4 is a supply volume adjustment mechanism that adjusts the supply volume of the paste P supplied from the tank 3 to the filling nozzle 6 .
  • the liquid volume adjustment unit 4 switches between allowing and prohibiting the supply of the paste P supplied from the tank 3 to the filling nozzle 6, and also adjusts the amount of paste P supplied from the tank 3 to the filling nozzle 6. It has a valve 40 such as an opening adjustment valve that can
  • the liquid volume adjustment unit 4 of this embodiment further includes a regulator 41 that reduces the pressure of the compressed air supplied from the compressor A and a controller 42 that adjusts the flow rate or pressure of the compressed air supplied from the compressor A to the tank 3. have
  • the valve 40 adjusts the supply amount to the filling nozzle 6 by adjusting the feeding pressure of the paste P supplied from the tank 3 to the filling nozzle 6 .
  • the valve 40 adjusts the supply amount to the filling nozzle 6 by reducing the pressure of the paste P pumped from the tank 3 .
  • a diaphragm valve or a needle valve whose opening degree can be adjusted can be used.
  • the liquid volume adjustment unit 4 is fixed to the bottom of the tank 3.
  • a filling nozzle 6 is fixed to the lower portion of the liquid amount adjusting section 4 .
  • the tank 3 , the liquid amount adjusting section 4 and the filling nozzle 6 are integrally raised and lowered by raising and lowering the cylinder 50 of the raising and lowering section 5 .
  • the pressure detection unit 49 is a pressure detection device such as a pressure sensor that detects the pressure of the paste P flowing from the liquid volume adjustment unit 4 to the filling nozzle 6 .
  • the pressure detection unit 49 may be of any pressure detection principle, such as a piezoelectric type or a diaphragm type.
  • the pressure detection unit 49 includes a piezoelectric pressure sensor, detects the pressure of the paste P (liquid feeding pressure) on the downstream side of the valve 40 (upstream side of the filling nozzle 6), and based on the detection result Pressure information is sent to the control unit 9 .
  • the control unit 9 controls the liquid amount adjustment unit 4 based on the pressure information sent by the pressure detection unit 49 to control the liquid feeding pressure of the paste P, thereby adjusting the ejection amount of the paste P from the filling nozzle 6. can do.
  • the discharge amount of the paste P discharged from the filling nozzle 6 is determined by the length and inner diameter of the cylinder of the nozzle base 60 and the needle 61 in addition to the feeding pressure. Therefore, in the present embodiment, the control unit 9 adjusts the discharge amount of the paste P from the filling nozzle 6 in consideration of the information about the length and inner diameter of the cylinder of the nozzle base 60 and the needle 61 in addition to the pressure information.
  • the control unit 9 is realized in terms of hardware or software by a CPU or a program (software) that causes the CPU to control the filling device M (control for implementing a filling method to be described later).
  • the control unit 9 is implemented by a computer C such as a personal computer or a PLC and control software stored in the storage unit 90 thereof.
  • the control unit 9 controls the liquid volume adjustment unit 4, the lifting unit 5, the pressure detection unit 49, and the position detection unit 59 via a communication path N configured by a port, a bus, a wired or wireless network (including an Internet line), or the like. etc. are communicatively connected.
  • a storage device or storage medium that can be used in the computer C such as a flash memory such as a so-called USB memory, a hard disk, an optical disk such as an SSD or a CDROM, etc., can generally be used.
  • a CPU such as a computer C is caused to discharge the paste P from the filling nozzle 6 by the liquid volume adjustment unit 4, and the inner space of the body portion 10 (straight body portion 10a) and the nozzle portion 11 is stored.
  • the CPU control unit 9) such as the computer C instructs the lifting unit 5 to move the filling nozzle 6 through the inside of the cylinder of the body portion 10 (straight body portion 10a) based on the position information.
  • a program is stored that implements the control for executing the insertion step of inserting into the cylinder of the portion 11 and the control for executing the above-described filling step after the execution of the insertion step.
  • the CPU control unit 9) such as the computer C is stored until the tip (tip 62) of the filling nozzle 6 protrudes from the opening of the tip 11a of the nozzle unit 11 in the above-described insertion step.
  • the filling nozzle is opened with the tip (tip portion 62) of the filling nozzle 6 protruding from the opening of the tip portion 11a of the nozzle portion 11. 6, a program for realizing control for starting ejection of the paste P is stored.
  • the CPU control unit 9) such as the computer C is stored in the above-described filling process, based on the position information, while withdrawing the filling nozzle 6 from the nozzle unit 11 at the first withdrawal speed.
  • a second filling step of discharging P from the filling nozzle 6 is realized, the second drawing speed is controlled to be slower than the first drawing speed, and the second drawing speed is controlled based on the pressure information to A program is stored that implements execution of control to make the ejection speed equal to or faster than the first ejection speed.
  • the storage unit 90 there is a program that causes the CPU (control unit 9) such as the computer C to execute control to increase the above-described second withdrawal speed as the nozzle unit 11 is withdrawn. stored.
  • the filling of the paste P into the syringe 1 is performed by executing the following steps performed by the filling device M.
  • the controller 9 inserts the filling nozzle 6 into the cylinder of the nozzle part 11 through the cylinder of the body part 10 (the cylinder of the straight body part 10a) by the lifting part 5. Execute the insertion step.
  • the filling nozzle 6 is inserted into the cylinder of the nozzle portion 11 until the tip portion 62 of the needle 61 of the filling nozzle 6 protrudes from the opening of the tip portion 11a of the nozzle portion 11 (point A in FIG. 6). It is preferable that the tip portion 62 protrude from the opening of the tip portion 11 a of the nozzle portion 11 by 16.7% or more and 90% or less of the distance h.
  • the tip portion 62 protrude from the opening of the tip portion 11 a of the nozzle portion 11 by a distance of 33.4% or more of the inner diameter d of the nozzle portion 11 .
  • the tip portion 62 protrudes from the opening of the tip portion 11a of the nozzle portion 11 by 2.5 mm.
  • the needle 61 is preferably inserted into the nozzle portion 11 with its longitudinal direction aligned with the axis X of the nozzle portion 11 . More preferably, the needle 61 is inserted into the nozzle portion 11 with its longitudinal direction overlapping the axis X of the nozzle portion 11 .
  • control unit 9 causes the liquid volume adjustment unit 4 to start supplying the paste P, discharges the paste P from the filling nozzle 6, and A filling step of filling paste P into S3 is executed.
  • the filling process is started by inserting the needle 61 of the filling nozzle 6 into the cylinder of the nozzle portion 11 and starting to discharge the paste P from the needle 61 .
  • the paste P is started to be discharged from the filling nozzle 6 while the tip 62 of the filling nozzle 6 protrudes from the opening of the tip 11 a of the nozzle portion 11 .
  • the paste P can be filled in the internal space S and the cap internal space S3.
  • the control unit 9 causes the liquid volume adjustment unit 4 to discharge the paste P from the filling nozzle 6 while the lifting unit 5 pulls the filling nozzle 6 out of the body 10 .
  • the internal space S can be filled with the paste P.
  • the control unit 9 causes the liquid volume adjustment unit 4 to apply the paste to the filling nozzle 6. The supply of P is stopped, and the ejection of paste P from the filling nozzle 6 is stopped (see FIG. 6).
  • the control unit 9 executes an initial filling process, a first filling process, and a second filling process in the filling process.
  • FIG. 7 shows a time chart of operations performed by the filling device M. As shown in FIG. In FIG. 7, the horizontal axis indicates the process time. Below, it demonstrates, referring FIGS. 2-7.
  • the graph at the top of FIG. 7 shows the change over time of the liquid feeding pressure of the paste P adjusted by the liquid volume adjusting section 4 .
  • the graph at the bottom of FIG. 7 shows changes over time in the position of the tip portion 62 of the filling nozzle 6 that is advanced and retracted by the lifting section 5 .
  • the position of the tip portion 62 in FIG. 7 is indicated by the distance between the tip surface of the tip portion 11a of the nozzle portion 11 and the tip surface of the tip portion 62.
  • the case where the tip surface of the tip portion 62 overlaps in the vertical direction is zero, and the case where the tip surface of the tip portion 62 is vertically above the tip surface of the tip portion 11a is a positive value, and the tip surface of the tip portion 62 is the tip of the tip portion 11a.
  • Negative values indicate the lower side of the surface in the vertical direction. That is, in FIG. 7, the point A is located at a distance indicated by a negative value, the needle 61 is positioned inside the nozzle portion 11, and the tip surface of the tip portion 62 is more vertical than the tip surface of the tip portion 11a. It means down in the direction.
  • the control unit 9 causes the liquid volume adjustment unit 4 to feed the paste P while the tip 62 of the filling nozzle 6 is positioned at the point A (with the withdrawal of the filling nozzle 6 stopped).
  • the pressure is set to pressure p1 (an example of the first ejection speed), and the paste P is started to be ejected from the filling nozzle 6 (time t0 in FIG. 7).
  • the control unit 9 fills at least the space S3 in the cap with the paste P, and fills the range of the distance of 20% or more from the tip side of the nozzle unit 11 along the axial direction in the internal space S (see FIG. 7).
  • time t1 the execution of the first filling process is started.
  • An example of the time for discharging the paste P from the filling nozzle 6 while the withdrawal of the filling nozzle 6 is stopped (the time from t0 to t1 in FIG. 7) is 0.2 seconds or more and 0.5 seconds or less. In this embodiment, the case of 0.3 seconds is illustrated and explained.
  • the tip portion 62 is 16.7% or more and 90% or less of the distance h from the opening of the tip portion 11a of the nozzle portion 11, and the tip portion 62 is located from the opening of the tip portion 11a of the nozzle portion 11 to the nozzle. Since the paste P is ejected while protruding by a distance of 33.4% or more of the inner diameter d of the portion 11, the paste P can be filled while minimizing the inclusion of air bubbles into the internal space S and the cap internal space S3.
  • control unit 9 fills at least the space S3 in the cap with the paste P, and in the internal space S, the range of distance of 20% or more from the tip side of the nozzle part 11 along the axial direction By starting the execution of the first filling step when is satisfied, the tip portion 62 can be buried in the paste P as described later.
  • the tip portion 62 is buried in the paste P.
  • the point A (see FIG. 6) is selected from within a region between the tip portion 11a of the nozzle portion 11 and the bottom surface 20a of the cap portion 20 in the vertical direction.
  • the pressure p1 is set to 200 kPa or more and 500 kPa or less.
  • the appropriate value and range of the pressure p1 depend on the shape of the flow path inside the filling nozzle 6 (for example, the inner diameter and length of the needle 61), they may be changed as necessary. In this embodiment, the case where the pressure p1 is set to 350 kPa will be described as an example.
  • the control unit 9 draws the tip 62 of the filling nozzle 6 from point A to point B (see FIG. 6) at the first drawing speed by the lifting unit 5, and the paste P is applied to the filling nozzle at pressure p1. Discharge from 6.
  • the drawing speed of the filling nozzle 6 is indicated by the slope of the line L representing the position change of the tip portion 62 of the filling nozzle 6.
  • the first drawing speed corresponds to the slope of the line L from time t1 to time t2.
  • Point B is selected from within the region inside the cylinder of the nozzle portion 11 in the vertical direction. In this embodiment, the distance from point A to point B is 5 mm.
  • the first drawing speed is set to a speed at which the tip portion 62 remains buried in the paste P due to the viscosity and surface tension of the paste P. As shown in FIG. 6, by maintaining the state where the tip portion 62 is buried in the paste P, it is possible to suppress air bubbles from entering the filled paste P. As shown in FIG.
  • the first drawing speed is preferably set to the same speed as the rising speed of the liquid surface of the paste P within the nozzle portion 11 during filling.
  • An example of the first drawing speed is 8 mm/s or more and 20 mm/s or less. In this embodiment, a case where the first drawing speed is 15 mm/s will be described as an example.
  • the controller 9 moves the tip portion 62 of the filling nozzle 6 from point B to point C (see FIG. ), the paste P is discharged from the filling nozzle 6 at a pressure p1 (an example of the case where the second discharge speed is the same as the first discharge speed).
  • the second drawing speed corresponds to the slope of the line L from time t2 to time t3.
  • the controller 9 ends the filling (ends the filling process) (time t3).
  • the filled syringe 1 becomes a filled container in which the space S1, the space S2, and the space S3 in the cap are filled with the paste P, as shown in FIGS.
  • the second drawing speed is set to, for example, 50% or more and 90% or less of the first drawing speed.
  • An example of the second drawing speed is 5 mm/s or more and 15 mm/s or less. In this embodiment, a case where the second drawing speed is 15 mm/s will be described as an example.
  • the second drawing speed is set to a speed at which the leading end portion 62 is kept buried in the paste P in relation to the viscosity and surface tension of the paste P. By maintaining the state in which the tip portion 62 is buried in the paste P, air bubbles can be suppressed from entering the paste P that has been filled.
  • the second drawing speed may be a speed at which the tip portion 62 can be kept buried in the paste P until the filling process is completed.
  • the tip portion 62 is pulled out of the paste P until the filling process is completed. It is preferable because it is possible to reliably maintain the state of being buried in.
  • the drawing speed of the filling nozzle 6 is temporarily made slower than the second drawing speed, and the tip portion 62 is slowly drawn out from the filled paste P.
  • the withdrawal speed can be accelerated to completely withdraw the filling nozzle 6 from the barrel 10 .
  • the process time can be shortened by accelerating the extraction.
  • Appropriate ranges of the first withdrawal speed and the second withdrawal speed depend on the size and shape of the syringe 1 (for example, the inner diameter of the barrel portion 10 and the nozzle portion 11). It may be appropriately set according to the size and shape of 1.
  • the filled syringe 1 as a filled container will be described in detail with reference to FIG.
  • the syringe 1 is filled with the paste P in the space S1, the space S2, and the space S3 in the cap.
  • a boundary portion 20b which is a space near the boundary (a portion where the tip portion 11a of the nozzle portion 11 and the cap portion 20 contact or an intermediate position between the tip portion 11a of the nozzle portion 11 and the cap portion 20), is also filled with the paste P.
  • the neighborhood in the definition of the boundary portion 20b means a distance within the wall thickness of the cylindrical portion of the distal end portion 11a.
  • the space S2 and the space S3 in the cap are filled with the paste P, so that when the syringe 1 is used (for example, the syringe 1 with the cap 2 removed is attached to the coating device in which the paste P of the syringe 1 is used)
  • the nozzle portion 11 is mounted and connected to the coating apparatus, air bubbles can be suppressed from entering the nozzle portion 11 .
  • the paste P of the syringe 1 it is possible to suppress the problem of empty shots and deterioration of the uniformity and coating workability of the silver paste.
  • the operation of pushing out a certain amount of the paste P in the nozzle portion 11 and throwing it away in order to remove air bubbles mixed in the nozzle portion 11 is not required, and the paste P can be used without waste. Therefore, if the paste P is expensive such as silver paste, the economic advantage is extremely large.
  • the space S3 in the cap is filled with the paste P, so that when the cap 2 is removed, a portion P1 of the paste P filled in the space S3 in the cap is , and remains in a state of protruding toward the tip side of the tip portion 11a of the nozzle portion 11 (a state of being attached and remaining on the tip portion 11a). Therefore, it is possible to prevent air (bubbles) from entering the cylinder of the nozzle portion 11 when the cap 2 is removed.
  • the distance h is the distance equal to or greater than the inner diameter d of the tip portion 11a of the nozzle portion 11, when the cap 2 is removed, it remains in a state of protruding to the tip side from the tip portion 11a of the nozzle portion 11. Formation of the portion P1 of the paste P can be facilitated. As a result, air (bubbles) can be prevented from entering the cylinder of the nozzle portion 11 when the cap 2 is removed.
  • the boundary portion 20b between the tip portion 11a of the nozzle portion 11 and the inner peripheral surface of the cap portion 20 in the cap internal space S3 is also filled with the paste P, so that when the cap 2 is removed, This further ensures the suppression of air (bubbles) from entering the cylinder of the nozzle portion 11 in .
  • the paste P in the boundary portion 20b moves inside the nozzle portion 11 when the cap 2 is removed, so air (bubbles) is less likely to enter the cylinder of the nozzle portion 11 .
  • the paste P in the boundary portion 20b also promotes the formation of a portion P1 of the paste P that remains in a state of protruding further to the tip side than the tip portion 11a of the nozzle portion 11 . As a result, it is possible to prevent air (bubbles) from entering the cylinder of the nozzle portion 11 when the cap 2 is removed.
  • the paste P has a predetermined viscosity and thixotropy, as shown in FIG.
  • the formation of the part P1 of the paste P remaining in a state of protruding further to the tip side than the tip portion 11a of the nozzle portion 11 is promoted. This action can also prevent air (bubbles) from entering the cylinder of the nozzle portion 11 when the cap 2 is removed.
  • the filled syringe 1 is shipped in a state in which the plunger 18 and the sealing lid 19 are inserted in this order from the rear end opening and the rear end side opening is sealed. good. Then, it is used as a supply container for the paste P in a paste P applicator, an adhesive device, or the like.
  • paste P that is highly blended, for example, paste P that is blended so that the peak of the particle size distribution of silver fine particles is more than two peaks, tends to cause uneven dispersion due to the defoaming operation. It is a great merit that it can prevent performance deterioration due to occurrence of unbalanced dispersion state.
  • the paste P is discharged from the filling nozzle 6 at the pressure p1 in the second filling process has been described, but as shown in FIG.
  • the paste P may be ejected from the filling nozzle 6 at a high pressure p2 (an example of when the second ejection speed is faster than the first ejection speed).
  • the pressure p2 is set to 300 kPa or more and 500 kPa or less. Since the appropriate value and range of the pressure p2 depend on the shape of the flow path inside the filling nozzle 6 (for example, the inner diameter and length of the needle 61), they may be changed as necessary.
  • the axis X of the nozzle portion 11 when the axis X of the nozzle portion 11 is arranged along the axis Y of the straight body portion 10a, in particular, when the axis X overlaps with the axis Y.
  • the axis X may not overlap with the axis Y and may only be along the axis Y. Even if the axis X does not overlap with the axis Y, the needle 61 can be inserted into the nozzle part 11 with its longitudinal direction along the axis X of the nozzle part 11 (for example, overlapping with the axis X). can be done.
  • the needle 61 is made flexible by, for example, forming the needle 61 with a flexible material, and the needle 61 is arranged along the inner wall of the nozzle portion 11 (for example, inside the nozzle portion 11). It can be filled by inserting it into the nozzle part 11 while sliding it against the wall surface.
  • control unit 9 causes the liquid volume adjustment unit to 4, the supply of the paste P to the filling nozzle 6 is stopped, and the discharge of the paste P from the filling nozzle 6 is stopped. It is not limited to the timing of withdrawal.
  • a weight detection sensor may be provided in the holding portion 7 to detect the weight of the syringe 1, and the ejection of the paste P may be stopped when the weight of the syringe 1 filled with the paste P reaches a predetermined weight. .
  • the liquid volume adjustment unit 4 adjusts the supply amount of the paste P supplied from the tank 3 to the filling nozzle 6, and prohibits the feeding of the paste P to the filling nozzle 6.
  • the valve 40 adjusts the feeding pressure of the paste P supplied from the tank 3 to the filling nozzle 6 to adjust the supply amount to the filling nozzle 6. A case has been illustrated and explained. However, adjustment of the liquid feeding pressure of the paste P is not limited to the above mode.
  • the liquid volume adjustment unit 4 controls only the supply and stop of the paste P in the valve 40, and the controller 42 based on the pressure information detected by the pressure detection unit 49.
  • the feeding pressure of the paste P may be adjusted by adjusting the pressure.
  • the adjustment method and aspect of the liquid feeding pressure of the paste P by the liquid volume adjustment unit 4 are not limited to the above embodiment.
  • the filling nozzle 6 is inserted into the cylinder of the nozzle portion 11 until the tip portion 62 of the needle 61 of the filling nozzle 6 protrudes from the opening of the tip portion 11a of the nozzle portion 11.
  • the case where the paste P is started to be discharged from the filling nozzle 6 in a state where the tip portion 62 protrudes from the opening of the tip portion 11a of the nozzle portion 11 has been described.
  • the position where the paste P is started to be discharged is not limited to the above mode.
  • the tip portion 62 of the needle 61 of the filling nozzle 6 is inserted into the cylinder of the nozzle portion 11 (for example, the tip surface of the tip portion 62 is at the same position as the tip surface of the tip portion 11a in the direction along the axis X),
  • the discharge of the paste P from the filling nozzle 6 may be started while the tip portion 62 of the filling nozzle 6 is positioned inside the cylinder of the nozzle portion 11 . If the filling nozzle 6 can fill the internal space S and the cap internal space S3 with the paste P, it is possible to prevent air (bubbles) from entering the cylinder of the nozzle portion 11 when the cap 2 is removed.
  • the paste P a thermally conductive conductive adhesive in which fine particles of silver are dispersed as a conductive filler in a solvent, a base resin, or the like has been exemplified and explained.
  • the paste P is not limited to the case where the conductive filler is dispersed.
  • the conductive filler is not limited to silver fine particles.
  • fillers for Paste P in addition to fine particles of silver, fine particles of metals such as platinum, ruthenium, rhodium, palladium, osmium, iridium, gold, and copper, and thermoplastic resins such as acrylic, polyethylene, polypropylene, polystyrene, and polyester can be used. fine particles may be dispersed.
  • the present invention can be applied to filling methods and filling devices.

Abstract

Provided are a filling method and a filling device for a syringe by which mixing of air bubbles into a nozzle section can be suppressed. This filling method is for filling, with a paste P, a syringe 1 which has a cylindrical body section 10 to be filled with the paste P, a cylindrical nozzle section 11 disposed at the tip of the body section 10 and having a smaller diameter than the body section 10, and a bottomed cylindrical cap 2 fitted over the tip of the nozzle section 11, and which discharges the paste P from a tip opening of the nozzle section 11. The method includes a filling step for filling internal spaces of the body section 10 and the nozzle section 11 with the paste P by discharging the paste P from a filling nozzle 6, wherein in said filling step, the discharging of the paste P from the filling nozzle 6 is started after the filling nozzle 6 has been inserted in the cylindrical part of the nozzle section 11.

Description

充填方法及び充填装置Filling method and filling device
　本発明は、充填方法及び充填装置に関する。 The present invention relates to a filling method and a filling device.
　特許文献１には、ディスペンサー用注射筒及びペースト状接着剤が記載されている。特許文献１に記載されたディスペンサー用注射筒は、ペースト状接着剤である銀ペーストを収容するシリンダと、シリンダに形成したノズル部に着脱自在に装着したノズルキャップと、シリンダに着脱自在に装着したヘッドキャップと、シリンダの内部に移動自在に配設した銀ペーストを圧送するためのピストンとからなる。ノズルキャップはシリンダのノズル部のペースト状接着剤を噴出する通路を塞ぐ閉塞部を有する。シリンダのノズルキャップ取付部とノズルキャップとの固定方法としてネジ式が好ましいことが記載されている。 Patent Document 1 describes a dispenser syringe and a paste adhesive. The dispenser syringe described in Patent Document 1 includes a cylinder containing a silver paste, which is a pasty adhesive, a nozzle cap detachably attached to a nozzle portion formed in the cylinder, and a nozzle cap detachably attached to the cylinder. It consists of a head cap and a piston movably arranged inside a cylinder for pumping the silver paste. The nozzle cap has a closing portion that closes the passage through which the paste adhesive is ejected from the nozzle portion of the cylinder. It is described that a screw type is preferable as a method of fixing the nozzle cap mounting portion of the cylinder and the nozzle cap.
　特許文献１には更に、シリンダに形成したノズル部の通路の空洞に溜まった空気又は気体が当該通路にそのまま存在すると、銀ペーストを使用する際に、空打ちの原因となり、銀ペーストの均一性と塗布作業性を損なわせる問題が記載されている。そのため、銀ペーストをシリンダの内部に充填した後、ノズル部の通路の空洞部分に銀ペーストを充填させなければならない問題が記載されている。また、ノズル部の通路に銀ペーストを充填した後、ノズル部とノズルキャップとの僅かな隙間から空気又は気体がシリンダの内部の銀ペーストに混入し、銀ペーストを使用する際に、空打ちの原因となり、銀ペーストの均一性と塗布作業性とを損わせる問題が指摘されている。そこで、特許文献１に記載されたディスペンサー用注射筒では、ノズルキャップに、シリンダのノズル部の銀ペーストを噴出する通路を塞ぐ閉塞部となるニードル状突出部を設けている。 Patent Document 1 further states that if air or gas accumulated in the cavity of the passage of the nozzle portion formed in the cylinder exists as it is in the passage, it will cause blank shots when using silver paste, and the uniformity of the silver paste will be reduced. and the problem of impairing coating workability. Therefore, it is described that after filling the inside of the cylinder with the silver paste, the silver paste must be filled into the hollow portion of the passage of the nozzle portion. In addition, after the passage of the nozzle portion is filled with silver paste, air or gas enters the silver paste inside the cylinder through a slight gap between the nozzle portion and the nozzle cap. It has been pointed out that this is the cause of the problem of impairing the uniformity and coating workability of the silver paste. Therefore, in the dispenser injection barrel described in Patent Document 1, the nozzle cap is provided with a needle-like protruding portion that serves as a blocking portion that blocks the passage for ejecting the silver paste in the nozzle portion of the cylinder.
特開２００３－１７５３５３号公報JP-A-2003-175353
　特許文献１に記載のごとく、銀ペーストなどが充填されたシリンジにおいては、ノズル部への空気の侵入抑制が重要である。そのため、ペースト充填時において、ノズル部への空気の侵入、すなわち気泡混入を抑制できるシリンジの充填方法及び充填装置の提供が望まれる。 As described in Patent Document 1, in a syringe filled with silver paste or the like, it is important to prevent air from entering the nozzle. Therefore, it is desired to provide a syringe filling method and a filling apparatus capable of suppressing the intrusion of air into the nozzle portion, that is, the inclusion of air bubbles, when the paste is filled.
　ノズル部へ空気が侵入したシリンジを使用するために、当該シリンジを脱泡すべく、遠心力を利用した脱泡機などを用いて脱泡すると、銀ペーストなどの分散状態が不均一化（例えば、銀粒子の偏り）する場合もある。 In order to use a syringe with air entering the nozzle, if the syringe is degassed using a deaerator that uses centrifugal force, the dispersed state of the silver paste etc. will become non-uniform (e.g. , bias of silver particles).
　また、特許文献１に記載されたディスペンサー用注射筒のように、ノズルキャップに、シリンダのノズル部の銀ペーストを噴出する通路を塞ぐ閉塞部となるニードル状突出部を設けると、ノズル部からノズルキャップを取り外す際に、ノズル部内に空気が混入する恐れがある。そのため、使用時において、ノズル部への気泡混入を抑制できるシリンジの充填方法及び充填装置の提供が望まれる。 In addition, as in the syringe for dispenser described in Patent Document 1, if the nozzle cap is provided with a needle-like projecting portion that serves as a blocking portion that blocks the passage for ejecting the silver paste in the nozzle portion of the cylinder, the nozzle portion can be removed from the nozzle. When removing the cap, air may enter the nozzle. Therefore, it is desired to provide a syringe filling method and a filling apparatus capable of suppressing air bubbles from entering the nozzle portion during use.
　本発明は、かかる実状に鑑みて為されたものであって、その目的は、ノズル部への気泡混入を抑制できるシリンジの充填方法及び充填装置を提供することにある。 The present invention has been made in view of such a situation, and its object is to provide a syringe filling method and a filling apparatus capable of suppressing air bubbles from entering the nozzle portion.
　上記目的を達成するための本発明に係る充填方法は、
　ペーストが充填される筒状の胴部、前記胴部の先端部に設けられ、前記胴部よりも細い筒状のノズル部、及び、前記ノズル部の先端に外嵌された有底筒状のキャップを有し、前記ノズル部の先端開口から前記ペーストを吐出させるシリンジへの前記ペーストの充填方法であって、
　充填ノズルから前記ペーストを吐出して前記胴部及び前記ノズル部の内部空間に前記ペーストを充填する充填工程を含み、
　前記充填工程は、前記充填ノズルを前記ノズル部の筒内部に挿入した状態で、前記充填ノズルから前記ペーストを吐出開始する。 The filling method according to the present invention for achieving the above object includes:
A cylindrical body portion filled with paste, a cylindrical nozzle portion provided at the tip of the body portion and thinner than the body portion, and a bottomed cylindrical nozzle portion fitted to the tip of the nozzle portion. A method of filling the paste into a syringe that has a cap and ejects the paste from a tip opening of the nozzle part,
A filling step of discharging the paste from a filling nozzle and filling the internal space of the body and the nozzle with the paste,
In the filling step, the paste is started to be discharged from the filling nozzle while the filling nozzle is inserted into the cylinder of the nozzle portion.
　本発明に係る充填方法は、更に、
　前記充填ノズルを前記胴部の筒内部を介して前記ノズル部の筒内部に挿入する挿入工程を更に含み、
　前記挿入工程を実行終了後に前記充填工程を実行してもよい。 The filling method according to the present invention further comprises
further comprising an inserting step of inserting the filling nozzle into the cylinder of the nozzle portion through the cylinder of the body;
The filling step may be performed after the inserting step is completed.
　本発明に係る充填方法は、更に、
　前記挿入工程は、前記充填ノズルの先端が前記ノズル部の先端開口から突出するまで前記充填ノズルを前記ノズル部の筒内部に挿入し、
　前記充填工程は、前記充填ノズルの先端が前記ノズル部の先端開口から突出した状態で、前記充填ノズルから前記ペーストを吐出開始してもよい。 The filling method according to the present invention further comprises
In the inserting step, the filling nozzle is inserted into the cylinder of the nozzle portion until the tip of the filling nozzle protrudes from the tip opening of the nozzle portion,
In the filling step, the paste may be started to be discharged from the filling nozzle in a state in which the tip of the filling nozzle protrudes from the tip opening of the nozzle portion.
　本発明に係る充填方法は、更に、
　前記充填工程は、
　　第一引抜速度で前記充填ノズルを前記ノズル部から引き抜きながら、第一吐出速度で前記ペーストを前記充填ノズルから吐出する第一充填工程と、
　　第二引抜速度で前記充填ノズルを前記ノズル部又は前記胴部から引き抜きながら、第二吐出速度で前記ペーストを前記充填ノズルから吐出する第二充填工程とを含み、
　前記第二引抜速度は、前記第一引抜速度よりも引抜速度が遅く、
　前記第二吐出速度は、前記第一吐出速度と同じ又は前記第一吐出速度よりも吐出速度が速くてもよい。 The filling method according to the present invention further comprises
The filling step includes
a first filling step of discharging the paste from the filling nozzle at a first discharge speed while pulling the filling nozzle out of the nozzle portion at a first drawing speed;
a second filling step of discharging the paste from the filling nozzle at a second discharge speed while withdrawing the filling nozzle from the nozzle portion or the body portion at a second drawing speed;
The second drawing speed is slower than the first drawing speed,
The second ejection speed may be the same as or faster than the first ejection speed.
　本発明に係る充填方法は、更に、
　前記第二引抜速度は、前記ノズル部から引き抜きに伴って、引抜速度が増大されてもよい。 The filling method according to the present invention further comprises
The second drawing speed may be increased as the material is drawn out from the nozzle section.
　本発明に係る充填方法は、更に、
　前記挿入工程は、前記充填ノズルの先端を前記ノズル部の内壁に沿わせて挿入してもよい。 The filling method according to the present invention further comprises
In the inserting step, the tip of the filling nozzle may be inserted along the inner wall of the nozzle portion.
　上記目的を達成するための本発明に係る充填装置は、
　ペーストが充填される筒状の胴部、前記胴部の先端部に設けられ、前記胴部よりも細い筒状のノズル部、及び、前記ノズル部の先端に外嵌された有底筒状のキャップを有し、前記ノズル部の先端開口から前記ペーストを吐出させるシリンジへの前記ペーストを充填する充填装置であって、
　前記ペーストを吐出して、前記胴部及び前記ノズル部の内部空間に前記ペーストを充填する充填ノズルと、
　前記充填ノズルによる前記ペーストの吐出を制御する制御部と、を備え、
　前記制御部は、前記充填ノズルが前記ノズル部の筒内部に挿入された状態で、前記充填ノズルから前記ペーストを吐出開始させて、前記胴部及び前記ノズル部の内部空間に前記ペーストを充填する。 A filling device according to the present invention for achieving the above object,
A cylindrical body portion filled with paste, a cylindrical nozzle portion provided at the tip of the body portion and thinner than the body portion, and a bottomed cylindrical nozzle portion fitted to the tip of the nozzle portion. A filling device that has a cap and fills the paste into a syringe that discharges the paste from the tip opening of the nozzle part,
a filling nozzle that discharges the paste and fills the internal space of the body and the nozzle with the paste;
a control unit that controls ejection of the paste by the filling nozzle,
The control unit starts discharging the paste from the filling nozzle in a state in which the filling nozzle is inserted into the cylinder of the nozzle unit, and fills the internal space of the body and the nozzle unit with the paste. .
　本発明に係る充填装置は、更に、
　前記制御部は、前記充填ノズルの先端が前記ノズル部の先端開口から突出するまで前記胴部の筒内部を介して前記充填ノズルを前記ノズル部の筒内部に挿入し、前記充填ノズルの先端が前記ノズル部の先端開口から突出した状態で、前記充填ノズルから前記ペーストを吐出開始させて、前記胴部及び前記ノズル部の内部空間に前記ペーストを充填してもよい。 The filling device according to the present invention further comprises
The control unit inserts the filling nozzle into the cylinder of the nozzle part through the cylinder of the body part until the tip of the filling nozzle protrudes from the tip opening of the nozzle part, and the tip of the filling nozzle The paste may be started to be discharged from the filling nozzle in a state of protruding from the tip opening of the nozzle portion, and the paste may be filled in the inner space of the body portion and the nozzle portion.
　ノズル部への気泡混入を抑制できるシリンジの充填方法及び充填装置を提供することができる。 It is possible to provide a syringe filling method and a filling device that can suppress air bubbles from entering the nozzle.
シリンジの構成を示す図である。It is a figure which shows the structure of a syringe. 本実施形態の充填装置の構成を説明する図である。It is a figure explaining the structure of the filling apparatus of this embodiment. シリンジの先端部の構造を説明する部分拡大図である。FIG. 4 is a partially enlarged view for explaining the structure of the tip of the syringe; シリンジに充填ノズルを挿入した状態の説明図である。FIG. 4 is an explanatory diagram of a state in which the filling nozzle is inserted into the syringe; 本実施形態の充填装置の機能ブロック図である。It is a functional block diagram of the filling device of this embodiment. 本実施形態の充填方法の説明図である。It is explanatory drawing of the filling method of this embodiment. 本実施形態の充填方法におけるタイムチャートである。It is a time chart in the filling method of this embodiment. 充填済みシリンジの充填状態の説明図である。It is explanatory drawing of the filling state of the filled syringe. キャップを外した充填済みシリンジのノズル部の状態の説明図である。FIG. 4 is an explanatory diagram of the state of the nozzle portion of the filled syringe with the cap removed. 後端部の開口を封止された充填済みシリンジの構成を説明する図である。FIG. 10 is a diagram illustrating the configuration of a filled syringe with the rear end opening sealed; 本実施形態の充填方法における別のタイムチャートである。4 is another time chart in the filling method of this embodiment.
　図面に基づいて、本発明の実施形態に係る充填方法及び充填装置について説明する。 A filling method and a filling device according to an embodiment of the present invention will be described based on the drawings.
（概要の説明）
　図１には、本実施形態に係る充填方法を用いる容器としてのシリンジ１を示している。図２には、本実施形態に係る充填方法を実施する充填装置Ｍを示している。 (Description of overview)
FIG. 1 shows a syringe 1 as a container using the filling method according to this embodiment. FIG. 2 shows a filling device M for carrying out the filling method according to this embodiment.
　シリンジ１は、図１に示すように、ペーストＰを充填可能であり、充填されたペーストＰを吐出させることができる容器である。なお、図１に示すシリンジ１の具体的な形状は本実施形態を説明するための例示に過ぎない。本実施形態に係る充填方法は、シリンジ１の各部の寸法や寸法比率が図１に示す場合と異なる場合であっても、本実施形態に係る充填方法は実施可能である。また、充填装置Ｍは、シリンジ１の寸法等の形状に対応させる変形を加えることにより、本実施形態で説明する充填方法を実施可能である。 The syringe 1, as shown in FIG. 1, is a container that can be filled with a paste P and that can discharge the filled paste P. Note that the specific shape of the syringe 1 shown in FIG. 1 is merely an example for describing the present embodiment. The filling method according to the present embodiment can be carried out even when the dimensions and dimensional ratios of the parts of the syringe 1 are different from those shown in FIG. In addition, the filling device M can implement the filling method described in this embodiment by adding a deformation corresponding to the shape such as the size of the syringe 1 .
　シリンジ１は、ペーストＰが充填される筒状の胴部１０、胴部１０の先端部に設けられ、胴部よりも細い筒状のノズル部１１、及び、ノズル部１１の先端に外嵌された有底筒状のキャップ２を備えている。 The syringe 1 is provided at a cylindrical body portion 10 filled with the paste P, a tip portion of the body portion 10, a cylindrical nozzle portion 11 thinner than the body portion, and a tip end of the nozzle portion 11. It has a cylindrical cap 2 with a bottom.
　シリンジ１は、キャップ２をノズル部１１から取り外して開封した状態で、ノズル部１１の先端開口からペーストＰを吐出させることができる。 The syringe 1 can discharge the paste P from the tip opening of the nozzle part 11 in a state where the cap 2 is removed from the nozzle part 11 and opened.
　シリンジ１は、胴部１０の筒内に挿入されるプランジャ１８を装着可能となっている。シリンジ１では、ペーストＰを吐出させる場合、キャップ２を取り外した後、プランジャ１８を胴部１０の筒内部に押し込むことにより、胴部１０の筒内に充填されたペーストＰを押し出して、ノズル部１１から吐出させることができる。 The syringe 1 can be fitted with a plunger 18 that is inserted into the cylinder of the barrel 10 . In the syringe 1, when the paste P is discharged, after removing the cap 2, the plunger 18 is pushed into the cylinder of the body 10 to push out the paste P filled in the cylinder of the body 10, and the nozzle part 11 can be discharged.
　ペーストＰは、後述するように、ノズル部１１とキャップ２とに隙間が生じないようにノズル部１１がキャップ２で封止されたのちに胴部１０内に充填される。 As will be described later, the paste P is filled in the barrel portion 10 after the nozzle portion 11 is sealed with the cap 2 so that no gap is formed between the nozzle portion 11 and the cap 2 .
　以下の説明では、シリンジ１において、胴部１０から見てノズル部１１側を先端側と定義し、その反対側を後端側と定義する。 In the following description, in the syringe 1, the nozzle portion 11 side as viewed from the body portion 10 is defined as the front end side, and the opposite side is defined as the rear end side.
　図２には、充填装置Ｍを示している。充填装置Ｍは、シリンジ１へペーストＰを充填する装置である。図２では、充填装置Ｍにシリンジ１が装着されている状態を示している。図２では、鉛直方向における上側に胴部１０の後端側であるクリップ部１０ｂが配置されており、鉛直方向における下側に胴部１０の先端側であるノズル部１１が配置されている場合を示している。充填装置Ｍは、シリンジ１の胴部１０、胴部１０のノズル部１１、及び、キャップ２にペーストＰを充填することができる。 Fig. 2 shows the filling device M. The filling device M is a device that fills the paste P into the syringe 1 . FIG. 2 shows a state in which the syringe 1 is attached to the filling device M. As shown in FIG. In FIG. 2, the clip portion 10b, which is the rear end side of the body portion 10, is arranged on the upper side in the vertical direction, and the nozzle portion 11, which is the tip side of the body portion 10, is arranged on the lower side in the vertical direction. is shown. The filling device M can fill the paste P into the barrel portion 10 of the syringe 1 , the nozzle portion 11 of the barrel portion 10 , and the cap 2 .
　充填装置Ｍは、ペーストＰを吐出して、シリンジ１の胴部１０及びノズル部１１の内部空間Ｓ（図１参照）にペーストＰを充填する充填ノズル６と、充填ノズル６によるペーストＰの吐出を制御する制御部９と、を備えている。 The filling device M includes a filling nozzle 6 that discharges the paste P and fills the interior space S (see FIG. 1) of the barrel portion 10 and the nozzle portion 11 of the syringe 1 with the paste P, and discharges the paste P from the filling nozzle 6. and a control unit 9 for controlling the
　本実施形態では、充填装置Ｍが更に、シリンジ１に供給するペーストＰを貯留したタンク３、タンク３から充填ノズル６へのペーストＰの供給量を調節する液量調整部４、充填ノズル６を昇降させる昇降部５、シリンジ１を保持する保持部７、及び、昇降部５や保持部７を支持する支柱などで構成される支持本体８を有する場合を例示して説明している。 In this embodiment, the filling device M further includes a tank 3 that stores the paste P to be supplied to the syringe 1, a liquid volume adjustment unit 4 that adjusts the amount of paste P supplied from the tank 3 to the filling nozzle 6, and a filling nozzle 6. A case of having an elevating unit 5 that moves up and down, a holding unit 7 that holds the syringe 1, and a supporting body 8 that is composed of a column or the like that supports the elevating unit 5 and the holding unit 7 is described as an example.
　以下の説明では、充填装置Ｍの上下を説明する場合に、鉛直方向における上向きを上、下向きを下と定義して説明する。図２の場合では、シリンジ１の先端側は充填装置Ｍの下側に対応し、シリンジ１の後端側は充填装置Ｍの上側に対応する。 In the following description, when describing the top and bottom of the filling device M, the upward direction in the vertical direction is defined as the top, and the downward direction is defined as the bottom. In the case of FIG. 2, the front end side of the syringe 1 corresponds to the bottom side of the filling device M, and the rear end side of the syringe 1 corresponds to the top side of the filling device M. As shown in FIG.
　制御部９は、充填ノズル６がシリンジ１のノズル部１１の筒内部に挿入された状態で、充填ノズル６からペーストＰを吐出開始させて、シリンジ１の胴部１０及びノズル部１１の内部空間Ｓ（図１参照）にペーストＰを充填する。 The control unit 9 starts discharging the paste P from the filling nozzle 6 in a state in which the filling nozzle 6 is inserted into the cylinder of the nozzle portion 11 of the syringe 1, and the inner space of the barrel portion 10 and the nozzle portion 11 of the syringe 1 is discharged. S (see FIG. 1) is filled with paste P.
（詳細説明）
　図１に示すように、胴部１０は、ポリオレフィンなどで形成された樹脂製の容器である。胴部１０には、ペーストＰを充填可能な内部空間Ｓが形成されている。 (detailed explanation)
As shown in FIG. 1, the body 10 is a resin container made of polyolefin or the like. An internal space S that can be filled with the paste P is formed in the body portion 10 .
　胴部１０は、円筒状の直胴部分１０ａと、直胴部分１０ａの先端部に形成されたノズル部１１と、直胴部分１０ａの先端部に形成されており、ノズル部１１の外側に嵌る筒状で、筒壁面にネジ部１３が形成されたスリーブ１２と、直胴部分１０ａの後端部に形成されたクリップ部１０ｂとを備えている。直胴部分１０ａ、ノズル部１１、スリーブ１２及びクリップ部１０ｂは射出成型などにより一体成型されている。胴部１０は、透明であると、ペーストＰの状態を外部から目視可能となり、外部からペーストＰの充填状態が適切であるか否かを把握できるため好ましい。本実施形態では、胴部１０が透明である場合を説明している。以下では、内部空間Ｓのうち、直胴部分１０ａの筒の内側の空間を空間Ｓ１（図３参照）と称する。 The body portion 10 includes a cylindrical straight body portion 10a, a nozzle portion 11 formed at the tip of the straight body portion 10a, and a tip end portion of the straight body portion 10a, and is fitted to the outside of the nozzle portion 11. It has a cylindrical sleeve 12 with a threaded portion 13 formed on the wall surface of the cylinder, and a clip portion 10b formed at the rear end portion of the straight body portion 10a. The straight body portion 10a, the nozzle portion 11, the sleeve 12 and the clip portion 10b are integrally molded by injection molding or the like. It is preferable that the body portion 10 is transparent because the state of the paste P can be visually observed from the outside and whether or not the filling state of the paste P is appropriate can be grasped from the outside. In this embodiment, the case where the trunk|drum 10 is transparent is demonstrated. Below, the space inside the cylinder of the straight body part 10a among the internal spaces S is called space S1 (refer FIG. 3).
　直胴部分１０ａは、一例として、外径が１０ｍｍ～２０ｍｍである。また、軸心Ｙに沿う方向の長さは６０ｍｍ～１２０ｍｍ程度である。また、肉厚は、０．５ｍｍ～２ｍｍである。なお、これら外径、長さ及び肉厚は、直胴部分１０ａの形状や大きさの例示であって、本実施形態はこのような形状や大きさに限られない。 For example, the straight body portion 10a has an outer diameter of 10 mm to 20 mm. Moreover, the length in the direction along the axis Y is about 60 mm to 120 mm. Moreover, the thickness is 0.5 mm to 2 mm. Note that these outer diameter, length and thickness are examples of the shape and size of the straight body portion 10a, and the present embodiment is not limited to such shape and size.
　クリップ部１０ｂは、直胴部分１０ａの後端部において、胴部１０の径方向外側に延出するリブ状に形成されている。クリップ部１０ｂは、シリンジ１の使用時における使いやすさ向上（使用時における、把持や支持に利用可能）のために形成されており、シリンジ１から省略可能である。 The clip portion 10b is formed in the shape of a rib extending radially outward of the body portion 10 at the rear end portion of the straight body portion 10a. The clip portion 10b is formed to improve ease of use of the syringe 1 (it can be used for gripping and supporting during use), and can be omitted from the syringe 1 .
　ノズル部１１は、胴部１０に充填されたペーストＰを吐出する円筒状の部材である。ノズル部１１は、後端側から先端側に向けて、ややすぼむ形状とされている。ノズル部１１の外径は直胴部分１０ａの外径よりも小さく形成されている。ノズル部１１の筒内部と直胴部分１０ａの筒内部とは連通している。以下では、内部空間Ｓのうち、ノズル部１１の筒の内側の空間を空間Ｓ２（図３参照）と称する。 The nozzle part 11 is a cylindrical member that discharges the paste P filled in the body part 10 . The nozzle portion 11 has a shape that tapers slightly from the rear end side toward the front end side. The outer diameter of the nozzle portion 11 is formed smaller than the outer diameter of the straight body portion 10a. The inside of the cylinder of the nozzle portion 11 and the inside of the cylinder of the straight body portion 10a communicate with each other. Below, the space inside the cylinder of the nozzle part 11 among the internal spaces S is called space S2 (refer FIG. 3).
　本実施形態におけるノズル部１１は、図３参照に示すように、直胴部分１０ａの先端側に形成されたテーパー部１０ｃの先端から軸心Ｙに沿い延出するように形成されている。ノズル部１１は、後端側から先端側にかけて、外径がやや小さくなり、先端側が窄まった形状となっている。そして、ノズル部１１の軸心Ｘは直胴部分１０ａの軸心Ｙに沿うように配置されている。本実施形態では一例として軸心Ｘは軸心Ｙと重複しており同軸心である。 As shown in FIG. 3, the nozzle portion 11 in this embodiment is formed to extend along the axis Y from the tip of a tapered portion 10c formed on the tip side of the straight body portion 10a. The nozzle portion 11 has a shape in which the outer diameter is slightly reduced from the rear end side to the front end side and the front end side is narrowed. The axis X of the nozzle portion 11 is arranged along the axis Y of the straight body portion 10a. In this embodiment, as an example, the axis X overlaps with the axis Y and is coaxial.
　ノズル部１１は、一例として外径が３ｍｍ～６ｍｍである。また、内径が２ｍｍ～４ｍｍである。また、軸心Ｘに沿う方向の長さは、８ｍｍ～１５ｍｍ程度である。そして、肉厚は０．５ｍｍ～２ｍｍである。なお、これら外径などは、ノズル部１１の形状や大きさの例示であって、本実施形態はこのような形状や大きさに限られない。本実施形態では、ノズル部１１の内径が２．４ｍｍである場合を例示して説明する。 The nozzle part 11 has an outer diameter of 3 mm to 6 mm, for example. Also, the inner diameter is 2 mm to 4 mm. Moreover, the length in the direction along the axis X is about 8 mm to 15 mm. And the thickness is 0.5 mm to 2 mm. Note that these outer diameters and the like are examples of the shape and size of the nozzle portion 11, and the present embodiment is not limited to such shapes and sizes. In this embodiment, a case where the inner diameter of the nozzle portion 11 is 2.4 mm will be described as an example.
　スリーブ１２は、図３に示すように、キャップ２を固定するための固定座である。スリーブ１２は、円筒状に形成されており、ノズル部１１を筒の内側にはめ込んだ位置関係で、直胴部分１０ａの先端部に設けられている。スリーブ１２は、ノズル部１１の軸心Ｘと同軸心となるように形成されている。本実施形態において、スリーブ１２の外径は直胴部分１０ａよりも小さく形成されている場合を例示しているが、スリーブ１２の外径は直胴部分１０ａよりも大きく形成されていてもよい。スリーブ１２の筒内周面には一例としてネジ部１３が二条ネジ（本実施形態では雌ネジ）として形成されている。 The sleeve 12 is a fixing seat for fixing the cap 2, as shown in FIG. The sleeve 12 is formed in a cylindrical shape, and is provided at the tip of the straight body portion 10a in a positional relationship in which the nozzle portion 11 is fitted inside the cylinder. The sleeve 12 is formed so as to be coaxial with the axis X of the nozzle portion 11 . In this embodiment, the outer diameter of the sleeve 12 is formed smaller than the straight body portion 10a, but the outer diameter of the sleeve 12 may be formed larger than the straight body portion 10a. As an example, a threaded portion 13 is formed as a double thread (female thread in this embodiment) on the inner peripheral surface of the sleeve 12 .
　キャップ２は、ポリオレフィンなどで形成された樹脂製の有底筒状の蓋部材である。キャップ２は、本実施形態では透明である。キャップ２は、透明であると、ペーストＰの状態を外部から目視で把握できるため好ましいが、キャップ２は、透明である場合に限られない。 The cap 2 is a bottomed cylindrical lid member made of resin such as polyolefin. The cap 2 is transparent in this embodiment. It is preferable that the cap 2 is transparent because the state of the paste P can be visually recognized from the outside, but the cap 2 is not limited to being transparent.
　キャップ２は、ノズル部１１の先端部１１ａを封止する有底筒状のキャップ部２０と、キャップ２の着脱時のつまみとなり、キャップ２の着脱装置などと係合する係合部２１とを有する。キャップ部２０の筒内部の形状は、後端側から先端側にかけて、内径がやや小さくなり、先端側が窄まった形状であったり、逆に、後端側から先端側にかけて、内径が拡大する形状であったりしてもよい。キャップ部２０の筒の内周面は、ノズル部１１の外周面に沿うように形成されている。 The cap 2 includes a bottomed tubular cap portion 20 that seals the tip portion 11a of the nozzle portion 11, and an engaging portion 21 that serves as a knob when the cap 2 is attached and detached and engages with a cap attachment/detachment device or the like. have. The shape of the inside of the cylinder of the cap portion 20 may be such that the inner diameter becomes slightly smaller from the rear end side to the front end side and narrows toward the front end side, or conversely, the inner diameter expands from the rear end side to the front end side. It may be The inner peripheral surface of the cylinder of the cap portion 20 is formed along the outer peripheral surface of the nozzle portion 11 .
　一例として、キャップ部２０の外周面上に、スリーブ１２のネジ部１３と螺合可能なキャップ側ネジ部２３が形成されている。キャップ側ネジ部２３は二条ネジ（本実施形態では雄ネジ）である。本実施形態においてキャップ２は、スリーブ１２と螺合し、スリーブ１２への螺合接続により胴部１０に固定可能である。キャップ２は、このように螺合接続などされた状態でノズル部１１の先端に外嵌されてノズル部１１の先端開口を封止する。 As an example, a cap-side threaded portion 23 that can be screwed with the threaded portion 13 of the sleeve 12 is formed on the outer peripheral surface of the cap portion 20 . The cap-side threaded portion 23 is a double thread (a male thread in this embodiment). In this embodiment the cap 2 is screwed onto the sleeve 12 and can be fixed to the barrel 10 by means of a screw connection to the sleeve 12 . The cap 2 is fitted over the tip of the nozzle portion 11 in such a state that it is screwed and connected to seal the tip opening of the nozzle portion 11 .
　キャップ２がノズル部１１の先端に外嵌された封止状態では、ノズル部１１がキャップ部２０の筒内に嵌る。この際、キャップ部２０の筒の内周面は、ノズル部１１の外周面と少なくとも一部が当接し、ノズル部１１の先端部１１ａを封止する。 In a sealed state in which the cap 2 is externally fitted on the tip of the nozzle portion 11, the nozzle portion 11 fits inside the cylinder of the cap portion 20. At this time, at least a portion of the inner peripheral surface of the cylinder of the cap portion 20 contacts the outer peripheral surface of the nozzle portion 11 to seal the tip portion 11a of the nozzle portion 11 .
　キャップ２がノズル部１１の先端に外嵌された封止状態では、ノズル部１１の先端部１１ａとキャップ部２０における筒内の筒底面２０ａとは離間している。本実施形態では、ノズル部１１における先端部１１ａと筒底面２０ａとは、ノズル部１１の先端部１１ａの内径ｄ以上の距離ｈだけ離間している。本実施形態において、先端部１１ａと筒底面２０ａとの距離ｈは、軸心Ｘに沿う方向における、先端部１１ａから筒底面２０ａまでの最大距離として定義している。距離ｈは、後述するようにノズル部１１の内径ｄ以上の距離であることが好ましい。なお、距離ｈは、内径ｄの３倍以下の距離であれば、通常は足りる。は本実施形態では、距離ｈは、３．０ｍｍであり、内径ｄは１．５ｍｍである。また、ノズル部１１の先端面（図３では、先端部１１ａの先端側の面、ノズル部１１の筒の先端側の端面）とキャップ２のキャップ部２０の内面とは離間している。そして、先端部１１ａと筒底面２０ａとの間には、キャップ内空間Ｓ３が形成されている。 In the sealed state where the cap 2 is fitted onto the tip of the nozzle portion 11, the tip portion 11a of the nozzle portion 11 and the bottom surface 20a of the cap portion 20 are separated from each other. In this embodiment, the tip portion 11 a of the nozzle portion 11 and the cylinder bottom surface 20 a are separated by a distance h equal to or greater than the inner diameter d of the tip portion 11 a of the nozzle portion 11 . In the present embodiment, the distance h between the tip portion 11a and the bottom surface 20a is defined as the maximum distance from the tip portion 11a to the bottom surface 20a in the direction along the axis X. The distance h is preferably equal to or greater than the inner diameter d of the nozzle portion 11, as will be described later. In addition, if the distance h is three times or less than the inner diameter d, it is usually sufficient. In this embodiment, the distance h is 3.0 mm and the inner diameter d is 1.5 mm. In addition, the tip surface of the nozzle portion 11 (in FIG. 3, the surface on the tip side of the tip portion 11a, the end surface on the tip side of the tube of the nozzle portion 11) and the inner surface of the cap portion 20 of the cap 2 are separated. A cap internal space S3 is formed between the tip portion 11a and the cylinder bottom surface 20a.
　図１に示すペーストＰの一例は、導電性フィラーとして銀の微粒子を溶剤や基材樹脂等に分散した熱伝導性導電性接着剤である。このような銀ペーストは、例えば半導体素子をリードフレームや基板等に接着させる接合材料（ダイボンド材）として使用される。熱伝導性導電性接着剤としてのペーストＰは、一例として、銀微粒子に加えて、エポキシ樹脂やアクリル樹脂などの基材樹脂、基材樹脂の硬化剤、熱可塑性樹脂、有機溶剤などを含む。銀微粒子の平均粒子径（電子顕微鏡の画像解析によって求めた各粒子の面積から算出した円相当の粒子径の平均）の一例は、１０ｎｍから５０μｍである。銀微粒子の粒度分布は、いわゆるひと山のピークでもふた山以上のピークであってもよい。銀微粒子の粒度分布は、例えば、サブミクロン（３００ｎｍ）未満の領域と、１μｍを超える領域とにそれぞれピークを有していてもよい。銀微粒子の形状は特定の形状に限られず、球形状、ラグビーボール状、針状、フレーク状、その他の不定形状であってよい。銀ペーストは、酸化亜鉛、酸化錫、酸化インジウム、錫とビスマスの複合酸化物などの銀微粒子以外の金属酸化物微粒子を含んでもよい。ペーストＰは、例えば、粘度が５から９０Ｐａｓ程度で、揺変性が１．０から１１．５程度の上記銀微粒子の粒子分散体である。 An example of the paste P shown in FIG. 1 is a thermally conductive conductive adhesive in which silver fine particles as a conductive filler are dispersed in a solvent, a base resin, or the like. Such silver paste is used, for example, as a bonding material (die-bonding material) for bonding a semiconductor element to a lead frame, a substrate, or the like. The paste P as a thermally conductive adhesive contains, for example, a base resin such as an epoxy resin or an acrylic resin, a curing agent for the base resin, a thermoplastic resin, an organic solvent, etc., in addition to fine silver particles. An example of the average particle size of the fine silver particles (average particle size equivalent to a circle calculated from the area of each particle obtained by electron microscope image analysis) is 10 nm to 50 μm. The particle size distribution of the fine silver particles may have a so-called single peak or two or more peaks. The particle size distribution of the fine silver particles may have peaks in, for example, a submicron (300 nm) or less region and a greater than 1 μm region. The shape of the fine silver particles is not limited to a specific shape, and may be spherical, rugby ball-like, needle-like, flake-like, or other irregular shapes. The silver paste may contain metal oxide fine particles other than silver fine particles, such as zinc oxide, tin oxide, indium oxide, and composite oxides of tin and bismuth. The paste P is, for example, a particle dispersion of the silver fine particles having a viscosity of about 5 to 90 Pas and a thixotropy of about 1.0 to 11.5.
　なお、ペーストＰの粘度はＲＶＴ型粘度計、ＨＶＴ型粘度計又はＥ型粘度計で計測した値を採用することができる。本実施形態では、ペーストＰの粘度が５０Ｐａｓ以上である場合は、ＨＶＴ型粘度計又はＥ型粘度計で計測した値を採用することが好ましく、２５℃で、ロータの回転数を１０ｒｐｍとして計測した場合の粘度を採用することができる。揺変性は、２５℃で、ロータの回転数を１０ｒｐｍとして計測した場合の粘度の値を、２５℃で、ロータの回転数を５０ｒｐｍとして計測した場合の粘度で除した値を採用することができる。ペーストＰの粘度が５Ｐａｓ以上５０Ｐａｓ未満の場合は、Ｅ型粘度計で計測した値を採用することが好ましく、２５℃で、ロータの回転数を５ｒｐｍとして計測した場合の粘度を採用することができる。揺変性は、２５℃で、ロータの回転数を０．５ｒｐｍとして計測した場合の粘度の値を、２５℃で、ロータの回転数を５ｒｐｍとして計測した場合の粘度で除した値を採用することができる。 For the viscosity of the paste P, a value measured with an RVT viscometer, HVT viscometer, or E-type viscometer can be adopted. In the present embodiment, when the viscosity of the paste P is 50 Pas or more, it is preferable to adopt the value measured by the HVT type viscometer or the E type viscometer. The viscosity of the case can be adopted. As the thixotropy, a value obtained by dividing the value of the viscosity measured at 25° C. and the rotor rotation speed of 10 rpm by the viscosity measured at 25° C. and the rotor rotation speed of 50 rpm can be adopted. . When the viscosity of the paste P is 5 Pas or more and less than 50 Pas, it is preferable to adopt the value measured with an E-type viscometer, and the viscosity measured at 25 ° C. and the rotation speed of the rotor of 5 rpm can be adopted. . For the thixotropy, the value obtained by dividing the value of the viscosity when measured at 25°C and a rotor rotation speed of 0.5 rpm by the viscosity when measured at 25°C and a rotor rotation speed of 5 rpm is adopted. can be done.
　シリンジ１は、図２に示すように、スリーブ１２にキャップ２を螺合接続してノズル部１１の先端開口を封止された後、充填装置Ｍにより胴部１０及びキャップ２内にペーストＰを充填される。本実施形態では、後述するように、ペーストＰは、図３に示すシリンジ１の空間Ｓ１、空間Ｓ２及びキャップ内空間Ｓ３に充填される。 As shown in FIG. 2, the syringe 1 has a cap 2 threadedly connected to a sleeve 12 to seal the tip opening of the nozzle portion 11, and then a filling device M fills the barrel portion 10 and the cap 2 with a paste P. be filled. In this embodiment, as will be described later, the paste P is filled in the space S1, the space S2, and the space S3 in the cap of the syringe 1 shown in FIG.
　本実施形態ではシリンジ１へのペーストＰの充填後、図１に示すように後端部の開口からプランジャ１８と封止蓋１９とをこの順で挿入されて後端側の開口を封止される。これにより、シリンジ１は、ペースト充填済み容器となり、ペーストＰの塗布機や接着装置などでペーストＰの供給容器（いわゆるカートリッジ）として使用される。シリンジ１におけるペーストＰの充填状態については後述する。 In this embodiment, after the syringe 1 is filled with the paste P, the plunger 18 and the sealing lid 19 are inserted in this order from the opening at the rear end as shown in FIG. 1 to seal the opening at the rear end. be. As a result, the syringe 1 becomes a paste-filled container, and is used as a paste P supply container (so-called cartridge) in a paste P applicator, a bonding device, or the like. The filling state of the paste P in the syringe 1 will be described later.
　図２に示すように、充填装置Ｍは、中央制御機構としての制御部９、ペーストＰが供給されるシリンジ１を保持する保持部７、胴部１０の直胴部分１０ａの軸心Ｙに沿う方向に昇降可能なシリンダ５０を備えた昇降部５、シリンダ５０の昇降位置を検出する位置検出部５９、シリンダ５０により昇降され、シリンジ１内にペーストＰを供給して充填する充填ノズル６、充填ノズル６に供給するペーストＰを貯留するタンク３、タンク３から充填ノズル６へペーストＰを供給し、且つ、ペーストＰの供給量を調整する液量調整部４、液量調整部４から供給されるペーストＰの圧力を検出する圧力検出部４９及びこれらを支持する支持本体８を備えている。 As shown in FIG. 2, the filling device M includes a control unit 9 as a central control mechanism, a holding unit 7 holding a syringe 1 to which the paste P is supplied, and a straight body portion 10a of the body 10. A lifting unit 5 having a cylinder 50 capable of moving up and down in a direction, a position detection unit 59 detecting the lifting position of the cylinder 50, a filling nozzle 6 that is lifted and lowered by the cylinder 50 and supplies and fills the paste P into the syringe 1, filling A tank 3 for storing the paste P to be supplied to the nozzle 6, a liquid volume adjustment unit 4 for supplying the paste P from the tank 3 to the filling nozzle 6 and adjusting the supply amount of the paste P, and a liquid volume adjustment unit 4 for supplying A pressure detecting portion 49 for detecting the pressure of the paste P and a supporting body 8 for supporting them are provided.
　充填装置Ｍでは、上側から下側に向けて、昇降部５及びタンク３、液量調整部４、及び充填ノズル６の順に配置されている。 In the filling device M, the lifting section 5, the tank 3, the liquid volume adjustment section 4, and the filling nozzle 6 are arranged in this order from the top to the bottom.
　制御部９は、充填装置Ｍの動作を制御する、充填装置Ｍの中央制御機構となる機能部である。制御部９は、充填装置Ｍの各部や各センサ類から、動作状況や検出状況に係る情報を受信し、また、各部に動作指令を送出してそれらの動作を制御する。制御部９の詳細は後述する。 The control unit 9 is a functional unit that controls the operation of the filling device M and serves as a central control mechanism of the filling device M. The control unit 9 receives information relating to operation status and detection status from each part and sensors of the filling device M, and also sends operation commands to each part to control their operations. Details of the control unit 9 will be described later.
　保持部７は、ペーストＰが供給されるシリンジ１を保持する治具である。保持部７は、例えば筒状に形成されており、その筒内部にシリンジ１の胴部１０を挿入することでシリンジ１を保持する。保持部７は、本実施形態では、胴部１０の直胴部分１０ａの軸心Ｙが鉛直方向に沿うようにシリンジ１を保持している。 The holding part 7 is a jig that holds the syringe 1 to which the paste P is supplied. The holding part 7 is formed, for example, in a cylindrical shape, and holds the syringe 1 by inserting the barrel part 10 of the syringe 1 into the inside of the cylinder. In this embodiment, the holding portion 7 holds the syringe 1 so that the axis Y of the straight body portion 10a of the body portion 10 extends in the vertical direction.
　昇降部５は、充填ノズル６を昇降させるための昇降機構である。昇降部５は、一例として、エアシリンダ、電動アクチュエータ、サーボモータなどのモータなどの駆動機構を含む。本実施形態では、昇降部５は、その駆動機構に駆動されて胴部１０の直胴部分１０ａの軸心Ｙに沿う方向（本実施形態では鉛直方向と同じ）に昇降可能なシリンダ５０を備えている。シリンダ５０は、例えば昇降位置の調節や制御が可能な上述の駆動機構によって駆動され、スライド動作により昇降動作を実現するスライド機構などである。本実施形態では、エアシリンダによってシリンダ５０が昇降駆動される場合を例示して説明する。後述するように、シリンダ５０に固定されたタンク３及びタンク３に固定された液量調整部４を介して充填ノズル６を昇降させている。 The elevating section 5 is an elevating mechanism for elevating the filling nozzle 6 . The lifting unit 5 includes, for example, a drive mechanism such as an air cylinder, an electric actuator, or a motor such as a servomotor. In this embodiment, the elevating section 5 includes a cylinder 50 that is driven by the drive mechanism to be able to ascend and descend in the direction along the axis Y of the straight body portion 10a of the body section 10 (the same as the vertical direction in this embodiment). ing. The cylinder 50 is, for example, a slide mechanism or the like that is driven by the above-described drive mechanism capable of adjusting and controlling the elevation position, and realizes elevation operation by sliding operation. In this embodiment, an example in which the cylinder 50 is driven up and down by an air cylinder will be described. As will be described later, the filling nozzle 6 is moved up and down via the tank 3 fixed to the cylinder 50 and the liquid amount adjusting section 4 fixed to the tank 3 .
　位置検出部５９は、昇降部５による充填ノズル６の昇降位置を検出する位置センサなどの計測装置である。位置検出部５９は、光学式や圧力式などその位置の検出原理は問わない。本実施形態では、位置検出部５９は光学式の位置センサを含み、シリンダ５０の昇降位置（移動距離）を検出し、当該検出結果に基づく位置情報を制御部９に送出している。制御部９は、位置検出部５９が送出した位置情報に基づいて充填ノズル６の昇降位置を算出し、充填ノズル６の昇降位置を昇降部５で制御することができる。また、制御部９は、位置情報に基づいて充填ノズル６の昇降速度を算出し、充填ノズル６の昇降速度を昇降部５で制御することができる。 The position detection unit 59 is a measuring device such as a position sensor that detects the elevation position of the filling nozzle 6 by the elevation unit 5 . The position detection unit 59 may be of any position detection principle, such as an optical type or a pressure type. In this embodiment, the position detector 59 includes an optical position sensor, detects the vertical position (movement distance) of the cylinder 50, and sends position information to the controller 9 based on the detection result. The control unit 9 can calculate the elevation position of the filling nozzle 6 based on the position information sent by the position detection unit 59 , and control the elevation position of the filling nozzle 6 by the elevation unit 5 . Further, the control unit 9 can calculate the lifting speed of the filling nozzle 6 based on the position information, and can control the lifting speed of the filling nozzle 6 by the lifting unit 5 .
　充填ノズル６は、ペーストＰを吐出してシリンジ１にペーストＰを充填するためのノズルデバイスである。充填ノズル６は、液量調整部４の下流側に接続されている。充填ノズル６は、例えば液量調整部４に吊り下げた状態で、着脱自在に固定されている。本実施形態では、充填ノズル６は、液量調整部４と連通し、液量調整部４に吊り下げ固定されたノズル基部６０と、ノズル基部６０の下端側に接続されたノズル状のニードル６１とを有する。 The filling nozzle 6 is a nozzle device for discharging the paste P to fill the syringe 1 with the paste P. The filling nozzle 6 is connected to the downstream side of the liquid volume adjusting section 4 . The filling nozzle 6 is detachably fixed, for example, in a state of being suspended from the liquid volume adjusting section 4 . In this embodiment, the filling nozzle 6 includes a nozzle base portion 60 that communicates with the liquid volume adjustment portion 4 and is suspended and fixed to the liquid volume adjustment portion 4 and a nozzle-shaped needle 61 that is connected to the lower end side of the nozzle base portion 60 . and
　ノズル基部６０は、内部にペーストＰが通流可能な筒状の部材である。ノズル基部６０は、液量調整部４から供給されたペーストＰをニードル６１へ供給する。ノズル基部６０は、一例として直管状の円筒状形状である。 The nozzle base 60 is a cylindrical member through which the paste P can flow. The nozzle base 60 supplies the paste P supplied from the liquid volume adjusting section 4 to the needle 61 . The nozzle base 60 has, for example, a straight tubular shape.
　ニードル６１は、図４に示すように、ノズル基部６０から供給されたペーストＰを胴部１０の直胴部分１０ａ、胴部１０のノズル部１１、及び、キャップ２内で吐出し、これら内部にペーストＰを充填する。ニードル６１は、一例として直管状の円筒状形状である。ニードル６１の筒の外径は、ノズル基部６０の外径よりも細い。また、ニードル６１の筒の外径は、キャップ２のキャップ部２０の内径よりも細い。ニードル６１は、一例としてノズル基部６０に固定されている。 As shown in FIG. 4, the needle 61 discharges the paste P supplied from the nozzle base 60 into the straight body portion 10a of the body portion 10, the nozzle portion 11 of the body portion 10, and the cap 2. Fill with paste P. The needle 61 has, for example, a straight tubular shape. The outer diameter of the cylinder of the needle 61 is smaller than the outer diameter of the nozzle base 60 . Further, the outer diameter of the cylinder of the needle 61 is smaller than the inner diameter of the cap portion 20 of the cap 2 . Needle 61 is fixed to nozzle base 60 as an example.
　充填ノズル６は、ノズル基部６０と種々の大きさや形状のニードル６１とを組み合わせたものがあらかじめ準備されてよい。充填ノズル６は、シリンジ１の大きさや形状に合わせて適切な充填ノズル６を選択可能とされてよい。 The filling nozzle 6 may be prepared in advance by combining the nozzle base 60 and needles 61 of various sizes and shapes. An appropriate filling nozzle 6 may be selectable according to the size and shape of the syringe 1 .
　充填ノズル６は、昇降部５に昇降されて、ニードル６１を、図２に示すように、胴部１０の後端側から胴部１０の筒内部に挿入される。充填ノズル６は昇降部５に昇降されて、図４に示すように、ニードル６１の先端部６２を、ノズル部１１の先端部１１ａを超えて更に先端側まで突出させて、キャップ部２０の筒内まで挿入可能とされている。すなわち、先端部６２は、胴部１０の後端側の開口部からキャップ部２０の筒内までの範囲を進退可能とされている。 The filling nozzle 6 is moved up and down by the lifting section 5, and the needle 61 is inserted into the cylinder of the body section 10 from the rear end side of the body section 10, as shown in FIG. As shown in FIG. 4, the filling nozzle 6 is moved up and down by the elevating unit 5, and as shown in FIG. It is possible to insert up to the inside. That is, the distal end portion 62 can advance and retreat in a range from the opening on the rear end side of the body portion 10 to the inside of the cylinder of the cap portion 20 .
　本実施形態では、充填ノズル６は、ノズル部１１に対して、様々な長さや太さ（内径又は外径）のニードル６１を任意に着脱及び交換可能となっている。すなわち、ニードル６１はシリンジ１の寸法や形状に合わせて任意に交換可能である。 In this embodiment, the filling nozzle 6 can arbitrarily attach/detach and replace needles 61 of various lengths and thicknesses (inner diameter or outer diameter) with respect to the nozzle portion 11 . That is, the needle 61 can be arbitrarily exchanged according to the size and shape of the syringe 1 .
　ニードル６１は、一例として外径が１．５ｍｍ～２．５ｍｍである。また、内径が１．０ｍｍ～２．０ｍｍである。また、肉厚が０．１５ｍｍ～０．４０ｍｍである。なお、これら外径などは、ニードル６１の形状や大きさの例示であって、本実施形態はこのような形状や大きさに限られない。ニードル６１の筒の軸方向に沿う方向の長さは、ノズル部１１の軸心Ｘに沿う方向の長さよりも長く、例えば、ノズル部１１の軸心Ｘに沿う方向の長さの１３０％から２５０％である。本実施形態のニードル６１は、例示として内径１．５ｍｍの場合で説明する。 As an example, the needle 61 has an outer diameter of 1.5 mm to 2.5 mm. Also, the inner diameter is 1.0 mm to 2.0 mm. Also, the thickness is 0.15 mm to 0.40 mm. Note that these outer diameters and the like are examples of the shape and size of the needle 61, and the present embodiment is not limited to such shapes and sizes. The length of the needle 61 in the axial direction of the tube is longer than the length of the nozzle portion 11 in the direction along the axis X, for example, from 130% of the length in the direction along the axis X of the nozzle portion 11. 250%. The needle 61 of this embodiment will be described with an inner diameter of 1.5 mm as an example.
　図２に示すように、タンク３は、充填ノズル６によりシリンジ１に供給されるペーストＰを貯留する貯留容器である。タンク３から充填ノズル６へのペーストＰの供給は、例えばコンプレッサＡから供給される圧縮空気の圧力などを利用して圧送により行うことができる。コンプレッサＡから供給される圧縮空気は、後述するレギュレータ４１やコントローラ４２で圧力や流量を調節されて、タンク３に供給される。タンク３は、液量調整部４を介して充填ノズル６にペーストＰを供給する。本実施形態においてタンク３は、シリンダ５０に固定されており、昇降部５に液圧力をよって昇降される。 As shown in FIG. 2, the tank 3 is a storage container that stores the paste P supplied to the syringe 1 by the filling nozzle 6. The supply of the paste P from the tank 3 to the filling nozzle 6 can be performed by pressure feeding using the pressure of compressed air supplied from the compressor A, for example. Compressed air supplied from the compressor A is supplied to the tank 3 after having its pressure and flow rate adjusted by a regulator 41 and a controller 42 which will be described later. The tank 3 supplies the paste P to the filling nozzle 6 via the liquid volume adjusting section 4 . In this embodiment, the tank 3 is fixed to the cylinder 50 and is moved up and down by the elevating section 5 by hydraulic pressure.
　液量調整部４は、タンク３から供給されるペーストＰの充填ノズル６への供給量を調整する供給量調整機構である。液量調整部４は、タンク３から供給されるペーストＰの充填ノズル６への供給の許容と禁止を切り替え、また、タンク３から供給されるペーストＰの充填ノズル６への供給量を調整することができる開度調整弁などのバルブ４０を有する。本実施形態の液量調整部４は、更に、コンプレッサＡから供給される圧縮空気の圧力を減圧するレギュレータ４１とコンプレッサＡからタンク３へ供給される圧縮空気の流量又は圧力を調整するコントローラ４２とを有する。 The liquid volume adjustment unit 4 is a supply volume adjustment mechanism that adjusts the supply volume of the paste P supplied from the tank 3 to the filling nozzle 6 . The liquid volume adjustment unit 4 switches between allowing and prohibiting the supply of the paste P supplied from the tank 3 to the filling nozzle 6, and also adjusts the amount of paste P supplied from the tank 3 to the filling nozzle 6. It has a valve 40 such as an opening adjustment valve that can The liquid volume adjustment unit 4 of this embodiment further includes a regulator 41 that reduces the pressure of the compressed air supplied from the compressor A and a controller 42 that adjusts the flow rate or pressure of the compressed air supplied from the compressor A to the tank 3. have
　バルブ４０は、タンク３から充填ノズル６へ供給されるペーストＰの送液圧力を調整することで充填ノズル６への供給量を調整する。本実施形態では、バルブ４０は、タンク３から圧送されるペーストＰの送液圧力を減圧することで充填ノズル６への供給量を調整する。バルブ４０としては、一例として、開度調整の可能なダイアフラムバルブやニードルバルブを使用できる。 The valve 40 adjusts the supply amount to the filling nozzle 6 by adjusting the feeding pressure of the paste P supplied from the tank 3 to the filling nozzle 6 . In this embodiment, the valve 40 adjusts the supply amount to the filling nozzle 6 by reducing the pressure of the paste P pumped from the tank 3 . As the valve 40, for example, a diaphragm valve or a needle valve whose opening degree can be adjusted can be used.
　液量調整部４は、タンク３の下部に固定されている。液量調整部４の下部には充填ノズル６が固定されている。タンク３、液量調整部４及び充填ノズル６は、昇降部５のシリンダ５０の昇降により一体に昇降する。 The liquid volume adjustment unit 4 is fixed to the bottom of the tank 3. A filling nozzle 6 is fixed to the lower portion of the liquid amount adjusting section 4 . The tank 3 , the liquid amount adjusting section 4 and the filling nozzle 6 are integrally raised and lowered by raising and lowering the cylinder 50 of the raising and lowering section 5 .
　圧力検出部４９は、液量調整部４から充填ノズル６に流れるペーストＰの圧力を検出する圧力センサなどの圧力検出装置である。圧力検出部４９は、圧電式やダイアフラム式などその圧力の検出原理は問わない。本実施形態では、圧力検出部４９は圧電式の圧力センサを含み、バルブ４０の下流側（充填ノズル６の上流側）におけるペーストＰの圧力（送液圧力）を検出し、当該検出結果に基づく圧力情報を制御部９に送出している。制御部９は、圧力検出部４９が送出した圧力情報に基づいて液量調整部４を制御してペーストＰの送液圧力を制御し、これにより充填ノズル６からのペーストＰの吐出量を調整することができる。なお、本実施形態では、充填ノズル６から吐出するペーストＰの吐出量は、送液圧力に加えて、ノズル基部６０やニードル６１の筒の長さ及び内径で決定される。したがって、本実施形態において制御部９は、圧力情報に加えて、ノズル基部６０やニードル６１の筒の長さ及び内径に関する情報を加味して充填ノズル６からのペーストＰの吐出量を調整している。 The pressure detection unit 49 is a pressure detection device such as a pressure sensor that detects the pressure of the paste P flowing from the liquid volume adjustment unit 4 to the filling nozzle 6 . The pressure detection unit 49 may be of any pressure detection principle, such as a piezoelectric type or a diaphragm type. In this embodiment, the pressure detection unit 49 includes a piezoelectric pressure sensor, detects the pressure of the paste P (liquid feeding pressure) on the downstream side of the valve 40 (upstream side of the filling nozzle 6), and based on the detection result Pressure information is sent to the control unit 9 . The control unit 9 controls the liquid amount adjustment unit 4 based on the pressure information sent by the pressure detection unit 49 to control the liquid feeding pressure of the paste P, thereby adjusting the ejection amount of the paste P from the filling nozzle 6. can do. In this embodiment, the discharge amount of the paste P discharged from the filling nozzle 6 is determined by the length and inner diameter of the cylinder of the nozzle base 60 and the needle 61 in addition to the feeding pressure. Therefore, in the present embodiment, the control unit 9 adjusts the discharge amount of the paste P from the filling nozzle 6 in consideration of the information about the length and inner diameter of the cylinder of the nozzle base 60 and the needle 61 in addition to the pressure information. there is
　制御部９は、ＣＰＵや当該ＣＰＵに充填装置Ｍの制御（後述する充填方法を実施する制御）を実現させるプログラム（ソフトウェア）により、ハードウェア又はソフトウェア的に実現される。本実施形態では、制御部９は、図５に示すように、パーソナルコンピュータやＰＬＣなどのコンピュータＣ及びその記憶部９０に格納された制御ソフトウェアにより実現される。制御部９は、ポートやバス、有線や無線のネットワーク（インターネット回線を含む）などで構成される通信路Ｎを介して液量調整部４、昇降部５、圧力検出部４９、位置検出部５９などと通信可能に接続されている。なお、記憶部９０としては、いわゆるＵＳＢメモリなどのフラッシュメモリ、ハードディスク、ＳＳＤやＣＤＲＯＭなどの光学ディスクなど、コンピュータＣで使用可能な記憶装置又は記憶媒体が一般に利用可能である。 The control unit 9 is realized in terms of hardware or software by a CPU or a program (software) that causes the CPU to control the filling device M (control for implementing a filling method to be described later). In this embodiment, as shown in FIG. 5, the control unit 9 is implemented by a computer C such as a personal computer or a PLC and control software stored in the storage unit 90 thereof. The control unit 9 controls the liquid volume adjustment unit 4, the lifting unit 5, the pressure detection unit 49, and the position detection unit 59 via a communication path N configured by a port, a bus, a wired or wireless network (including an Internet line), or the like. etc. are communicatively connected. As the storage unit 90, a storage device or storage medium that can be used in the computer C, such as a flash memory such as a so-called USB memory, a hard disk, an optical disk such as an SSD or a CDROM, etc., can generally be used.
　以下では、図１から図４を参照しつつ、図５に示す記憶部９０に格納されているプログラムについて説明する。 The programs stored in the storage unit 90 shown in FIG. 5 will be described below with reference to FIGS. 1 to 4. FIG.
　記憶部９０には、コンピュータＣなどのＣＰＵ（制御部９）に、液量調整部４により充填ノズル６からペーストＰを吐出させて胴部１０（直胴部分１０ａ）及びノズル部１１の内部空間ＳにペーストＰを充填する充填工程を実行させる制御と、この充填工程において、充填ノズル６をノズル部１１の筒内部に挿入した状態で、充填ノズル６からペーストＰを吐出開始する制御との実行を実現させるプログラムが格納されている。 In the storage unit 90, a CPU (control unit 9) such as a computer C is caused to discharge the paste P from the filling nozzle 6 by the liquid volume adjustment unit 4, and the inner space of the body portion 10 (straight body portion 10a) and the nozzle portion 11 is stored. Execution of control to execute a filling step of filling paste P into S, and control to start discharging the paste P from the filling nozzle 6 in a state in which the filling nozzle 6 is inserted into the cylinder of the nozzle portion 11 in this filling step. contains a program that implements
　また、記憶部９０には、コンピュータＣなどのＣＰＵ（制御部９）に、位置情報に基づいて、昇降部５により充填ノズル６を胴部１０（直胴部分１０ａ）の筒内部を介してノズル部１１の筒内部に挿入する挿入工程を実行させる制御と、挿入工程を実行終了後に上述の充填工程を実行する制御との実行を実現させるプログラムが格納されている。 Further, in the storage unit 90, the CPU (control unit 9) such as the computer C instructs the lifting unit 5 to move the filling nozzle 6 through the inside of the cylinder of the body portion 10 (straight body portion 10a) based on the position information. A program is stored that implements the control for executing the insertion step of inserting into the cylinder of the portion 11 and the control for executing the above-described filling step after the execution of the insertion step.
　また、記憶部９０には、コンピュータＣなどのＣＰＵ（制御部９）に、上述の挿入工程において、充填ノズル６の先端（先端部６２）がノズル部１１の先端部１１ａの開口から突出するまで充填ノズル６をノズル部１１の筒内部に挿入する制御と、上述の充填工程において、充填ノズル６の先端（先端部６２）がノズル部１１の先端部１１ａの開口から突出した状態で、充填ノズル６からペーストＰを吐出開始させる制御との実行を実現させるプログラムが格納されている。 In addition, in the storage unit 90, the CPU (control unit 9) such as the computer C is stored until the tip (tip 62) of the filling nozzle 6 protrudes from the opening of the tip 11a of the nozzle unit 11 in the above-described insertion step. In the control of inserting the filling nozzle 6 into the cylinder of the nozzle portion 11 and the above-described filling step, the filling nozzle is opened with the tip (tip portion 62) of the filling nozzle 6 protruding from the opening of the tip portion 11a of the nozzle portion 11. 6, a program for realizing control for starting ejection of the paste P is stored.
　また、記憶部９０には、コンピュータＣなどのＣＰＵ（制御部９）に、上述の充填工程において、位置情報に基づいて、第一引抜速度で充填ノズル６をノズル部１１から引き抜きながら、第一吐出速度でペーストＰを充填ノズル６から吐出する第一充填工程と、第二引抜速度で充填ノズル６をノズル部１１又は胴部１０（直胴部分１０ａ）から引き抜きながら、第二吐出速度でペーストＰを充填ノズル６から吐出する第二充填工程との実行を実現し、第二引抜速度は、第一引抜速度よりも引抜速度が遅く制御し、圧力情報に基づいて、第二吐出速度を、第一吐出速度と同じ又は第一吐出速度よりも吐出速度が速くする制御の実行を実現させるプログラムが格納されている。 Further, in the storage unit 90, the CPU (control unit 9) such as the computer C is stored in the above-described filling process, based on the position information, while withdrawing the filling nozzle 6 from the nozzle unit 11 at the first withdrawal speed. A first filling step of discharging the paste P from the filling nozzle 6 at a discharge speed, and a paste at a second discharge speed while pulling out the filling nozzle 6 from the nozzle portion 11 or the body portion 10 (straight body portion 10a) at a second drawing speed. A second filling step of discharging P from the filling nozzle 6 is realized, the second drawing speed is controlled to be slower than the first drawing speed, and the second drawing speed is controlled based on the pressure information to A program is stored that implements execution of control to make the ejection speed equal to or faster than the first ejection speed.
　また、記憶部９０には、コンピュータＣなどのＣＰＵ（制御部９）に、上述の第二引抜速度は、ノズル部１１から引き抜きに伴って、引抜速度を増大させる制御の実行を実現させるプログラムが格納されている。 Further, in the storage unit 90, there is a program that causes the CPU (control unit 9) such as the computer C to execute control to increase the above-described second withdrawal speed as the nozzle unit 11 is withdrawn. stored.
（充填方法の説明）
　シリンジ１へのペーストＰの充填は、充填装置Ｍが実行する以下の各工程の実行により行われる。 (Description of filling method)
The filling of the paste P into the syringe 1 is performed by executing the following steps performed by the filling device M.
　まず、図６に示すように、制御部９は、昇降部５によって、充填ノズル６を胴部１０の筒内部（直胴部分１０ａの筒内部）を介してノズル部１１の筒内部に挿入する挿入工程を実行する。本実施形態では、充填ノズル６のニードル６１の先端部６２がノズル部１１の先端部１１ａの開口から突出するまで充填ノズル６をノズル部１１の筒内部に挿入する（図６のＡ点）。先端部６２は、ノズル部１１の先端部１１ａの開口から、距離ｈの１６．７％以上９０％以下突出していることが好ましい。また、先端部６２は、ノズル部１１の先端部１１ａの開口から、ノズル部１１の内径ｄの３３．４％以上の距離だけ突出していることが好ましい。本実施形態では、先端部６２は、ノズル部１１の先端部１１ａの開口から、２．５ｍｍ突出している。ニードル６１は、その長手方向をノズル部１１の軸心Ｘに沿わせてノズル部１１に挿入されることが好ましい。ニードル６１は、その長手方向をノズル部１１の軸心Ｘと重複させてノズル部１１に挿入されることが更に好ましい。 First, as shown in FIG. 6, the controller 9 inserts the filling nozzle 6 into the cylinder of the nozzle part 11 through the cylinder of the body part 10 (the cylinder of the straight body part 10a) by the lifting part 5. Execute the insertion step. In this embodiment, the filling nozzle 6 is inserted into the cylinder of the nozzle portion 11 until the tip portion 62 of the needle 61 of the filling nozzle 6 protrudes from the opening of the tip portion 11a of the nozzle portion 11 (point A in FIG. 6). It is preferable that the tip portion 62 protrude from the opening of the tip portion 11 a of the nozzle portion 11 by 16.7% or more and 90% or less of the distance h. Moreover, it is preferable that the tip portion 62 protrude from the opening of the tip portion 11 a of the nozzle portion 11 by a distance of 33.4% or more of the inner diameter d of the nozzle portion 11 . In this embodiment, the tip portion 62 protrudes from the opening of the tip portion 11a of the nozzle portion 11 by 2.5 mm. The needle 61 is preferably inserted into the nozzle portion 11 with its longitudinal direction aligned with the axis X of the nozzle portion 11 . More preferably, the needle 61 is inserted into the nozzle portion 11 with its longitudinal direction overlapping the axis X of the nozzle portion 11 .
　上述の挿入工程を実行終了後に、制御部９は、液量調整部４にペーストＰの供給を開始させ、充填ノズル６からペーストＰを吐出させてシリンジ１の空間Ｓ１、空間Ｓ２及びキャップ内空間Ｓ３にペーストＰを充填する充填工程を実行する。 After completing the above-described insertion step, the control unit 9 causes the liquid volume adjustment unit 4 to start supplying the paste P, discharges the paste P from the filling nozzle 6, and A filling step of filling paste P into S3 is executed.
　充填工程は、充填ノズル６のニードル６１をノズル部１１の筒内部に挿入した状態で、ニードル６１からペーストＰを吐出開始させることで開始される。本実施形態の充填工程においては、充填ノズル６の先端部６２がノズル部１１の先端部１１ａの開口から突出した状態で、充填ノズル６からペーストＰを吐出開始する。これにより内部空間Ｓとキャップ内空間Ｓ３とにペーストＰを充填することができる。 The filling process is started by inserting the needle 61 of the filling nozzle 6 into the cylinder of the nozzle portion 11 and starting to discharge the paste P from the needle 61 . In the filling process of the present embodiment, the paste P is started to be discharged from the filling nozzle 6 while the tip 62 of the filling nozzle 6 protrudes from the opening of the tip 11 a of the nozzle portion 11 . As a result, the paste P can be filled in the internal space S and the cap internal space S3.
　充填工程では、制御部９は、液量調整部４で充填ノズル６からペーストＰを吐出させながら、昇降部５で充填ノズル６を胴部１０から引き抜く制御を行う。これにより内部空間ＳにペーストＰを充填することができる。制御部９は、充填ノズル６の先端部６２を胴部１０の直胴部分１０ａ内の所定位置（図６のＣ点）まで引き抜いた時点で、液量調整部４に充填ノズル６へのペーストＰの供給を停止させ、充填ノズル６からのペーストＰの吐出を停止させる（図６参照）。 In the filling process, the control unit 9 causes the liquid volume adjustment unit 4 to discharge the paste P from the filling nozzle 6 while the lifting unit 5 pulls the filling nozzle 6 out of the body 10 . As a result, the internal space S can be filled with the paste P. As shown in FIG. When the tip 62 of the filling nozzle 6 is pulled out to a predetermined position (point C in FIG. 6) in the straight body portion 10a of the body 10, the control unit 9 causes the liquid volume adjustment unit 4 to apply the paste to the filling nozzle 6. The supply of P is stopped, and the ejection of paste P from the filling nozzle 6 is stopped (see FIG. 6).
　制御部９は、充填工程において、初期充填工程と第一充填工程と第二充填工程とを実行する。図７には、充填装置Ｍが実行する動作のタイムチャートを示している。図７では、横軸に工程時間を示している。以下では、図２から図７を参照しつつ説明を行う。 The control unit 9 executes an initial filling process, a first filling process, and a second filling process in the filling process. FIG. 7 shows a time chart of operations performed by the filling device M. As shown in FIG. In FIG. 7, the horizontal axis indicates the process time. Below, it demonstrates, referring FIGS. 2-7.
　図７の上部のグラフは、液量調整部４で調整するペーストＰの送液圧力の経時変化を示している。 The graph at the top of FIG. 7 shows the change over time of the liquid feeding pressure of the paste P adjusted by the liquid volume adjusting section 4 .
　図７の下部のグラフは、昇降部５で進退させられる充填ノズル６の先端部６２の位置の経時変化を示している。図７における先端部６２の位置は、ノズル部１１の先端部１１ａの先端面と先端部６２の先端面との距離で示しており、先端部１１ａの先端面と先端部６２の先端面とが鉛直方向において重複する場合をゼロとし、先端部６２の先端面が先端部１１ａの先端面よりも鉛直方向における上側にある場合を正の値で、先端部６２の先端面が先端部１１ａの先端面よりも鉛直方向における下側にある場合を負の値で示している。すなわち、図７では、Ａ点は負の値で示される距離の位置にあり、ニードル６１がノズル部１１内に位置し、且つ、先端部６２の先端面が先端部１１ａの先端面よりも鉛直方向における下側にあることを意味している。 The graph at the bottom of FIG. 7 shows changes over time in the position of the tip portion 62 of the filling nozzle 6 that is advanced and retracted by the lifting section 5 . The position of the tip portion 62 in FIG. 7 is indicated by the distance between the tip surface of the tip portion 11a of the nozzle portion 11 and the tip surface of the tip portion 62. The case where the tip surface of the tip portion 62 overlaps in the vertical direction is zero, and the case where the tip surface of the tip portion 62 is vertically above the tip surface of the tip portion 11a is a positive value, and the tip surface of the tip portion 62 is the tip of the tip portion 11a. Negative values indicate the lower side of the surface in the vertical direction. That is, in FIG. 7, the point A is located at a distance indicated by a negative value, the needle 61 is positioned inside the nozzle portion 11, and the tip surface of the tip portion 62 is more vertical than the tip surface of the tip portion 11a. It means down in the direction.
　初期充填工程では、制御部９は、充填ノズル６の先端部６２をＡ点に位置させたまま（充填ノズル６の引抜を停止させた状態で）、液量調整部４によりペーストＰの送液圧力を圧力ｐ１（第一吐出速度の一例）に設定し、ペーストＰを充填ノズル６から吐出開始させる（図７の時刻ｔ０）。制御部９は、少なくともキャップ内空間Ｓ３をペーストＰで満たし、且つ、内部空間Ｓのうち、ノズル部１１の先端側から軸方向に沿って２０％以上の距離の範囲を満たした時点（図７の時刻ｔ１）で、第一充填工程を実行開始する。充填ノズル６の引抜を停止させたままペーストＰを充填ノズル６から吐出させる時間（図７の時刻ｔ０からｔ１の時間）の一例は、０．２秒以上０．５秒以下である。本実施形態では、０．３秒である場合を例示して説明している。 In the initial filling step, the control unit 9 causes the liquid volume adjustment unit 4 to feed the paste P while the tip 62 of the filling nozzle 6 is positioned at the point A (with the withdrawal of the filling nozzle 6 stopped). The pressure is set to pressure p1 (an example of the first ejection speed), and the paste P is started to be ejected from the filling nozzle 6 (time t0 in FIG. 7). The control unit 9 fills at least the space S3 in the cap with the paste P, and fills the range of the distance of 20% or more from the tip side of the nozzle unit 11 along the axial direction in the internal space S (see FIG. 7). At time t1), the execution of the first filling process is started. An example of the time for discharging the paste P from the filling nozzle 6 while the withdrawal of the filling nozzle 6 is stopped (the time from t0 to t1 in FIG. 7) is 0.2 seconds or more and 0.5 seconds or less. In this embodiment, the case of 0.3 seconds is illustrated and explained.
　本実施形態では、先端部６２がノズル部１１の先端部１１ａの開口から、距離ｈの１６．７％以上９０％以下、且つ、先端部６２がノズル部１１の先端部１１ａの開口から、ノズル部１１の内径ｄの３３．４％以上の距離だけ突出させてペーストＰを吐出するため、内部空間Ｓ及びキャップ内空間Ｓ３への気泡の混入を極力減らしてペーストＰを充填することができる。 In the present embodiment, the tip portion 62 is 16.7% or more and 90% or less of the distance h from the opening of the tip portion 11a of the nozzle portion 11, and the tip portion 62 is located from the opening of the tip portion 11a of the nozzle portion 11 to the nozzle. Since the paste P is ejected while protruding by a distance of 33.4% or more of the inner diameter d of the portion 11, the paste P can be filled while minimizing the inclusion of air bubbles into the internal space S and the cap internal space S3.
　また、本実施形態では、制御部９が、少なくともキャップ内空間Ｓ３をペーストＰで満たし、且つ、内部空間Ｓのうち、ノズル部１１の先端側から軸方向に沿って２０％以上の距離の範囲を満たした時点で第一充填工程を実行開始することで、後述するように、先端部６２をペーストＰに埋没された状態とすることができる。 Further, in the present embodiment, the control unit 9 fills at least the space S3 in the cap with the paste P, and in the internal space S, the range of distance of 20% or more from the tip side of the nozzle part 11 along the axial direction By starting the execution of the first filling step when is satisfied, the tip portion 62 can be buried in the paste P as described later.
　このように、キャップ内空間Ｓ３をペーストＰで満たした時点では、先端部６２がペーストＰに埋没された状態となる。これにより、以後のペーストＰの充填の過程において、充填されたペーストＰ中への気泡混入を抑制（防止の概念を含む。以下同じ。）できる。なお、Ａ点（図６参照）は、鉛直方向におけるノズル部１１の先端部１１ａとキャップ部２０における筒内の筒底面２０ａとの間の領域内から選択される。圧力ｐ１は、一例として２００ｋＰａ以上５００ｋＰａ以下に設定される。適切な圧力ｐ１の値やその範囲は充填ノズル６内の流路形状（たとえば、ニードル６１の内径や長さ）に依存するため、必要に応じて変更してよい。本実施形態では、圧力ｐ１が、３５０ｋＰａに設定されている場合を例示して説明する。 Thus, when the space S3 in the cap is filled with the paste P, the tip portion 62 is buried in the paste P. As a result, in the subsequent process of filling the paste P, it is possible to suppress (including the concept of preventing) the mixture of air bubbles in the filled paste P (the same applies hereinafter). Note that the point A (see FIG. 6) is selected from within a region between the tip portion 11a of the nozzle portion 11 and the bottom surface 20a of the cap portion 20 in the vertical direction. As an example, the pressure p1 is set to 200 kPa or more and 500 kPa or less. Since the appropriate value and range of the pressure p1 depend on the shape of the flow path inside the filling nozzle 6 (for example, the inner diameter and length of the needle 61), they may be changed as necessary. In this embodiment, the case where the pressure p1 is set to 350 kPa will be described as an example.
　第一充填工程では、制御部９は、昇降部５によって第一引抜速度で充填ノズル６の先端部６２をＡ点からＢ点（図６参照）まで引き抜きながら、圧力ｐ１でペーストＰを充填ノズル６から吐出させる。なお、図７に示すように、充填ノズル６の引抜速度は、充填ノズル６の先端部６２の位置変化を表すラインＬの傾きで示される。第一引抜速度は、時刻ｔ１から時刻ｔ２までのラインＬの傾きに対応する。Ｂ点は、鉛直方向におけるノズル部１１の筒内部の領域内から選択される。本実施形態では、Ａ点からＢ点までの距離は５ｍｍである。 In the first filling step, the control unit 9 draws the tip 62 of the filling nozzle 6 from point A to point B (see FIG. 6) at the first drawing speed by the lifting unit 5, and the paste P is applied to the filling nozzle at pressure p1. Discharge from 6. As shown in FIG. 7, the drawing speed of the filling nozzle 6 is indicated by the slope of the line L representing the position change of the tip portion 62 of the filling nozzle 6. As shown in FIG. The first drawing speed corresponds to the slope of the line L from time t1 to time t2. Point B is selected from within the region inside the cylinder of the nozzle portion 11 in the vertical direction. In this embodiment, the distance from point A to point B is 5 mm.
　第一引抜速度は、ペーストＰの粘性や表面張力との関係で、先端部６２が、ペーストＰに埋没された状態を維持する速度に設定される。図６に示すように、先端部６２がペーストＰに埋没された状態を維持することで、充填されたペーストＰへの気泡混入を抑制することができる。第一引抜速度は、充填時におけるノズル部１１内でのペーストＰの液面の上昇速度と同じ速度に設定されることが好ましい。第一引抜速度の一例は、８ｍｍ／ｓ以上２０ｍｍ／ｓ以下である。本実施形態では、第一引抜速度が１５ｍｍ／ｓである場合を例示して説明する。 The first drawing speed is set to a speed at which the tip portion 62 remains buried in the paste P due to the viscosity and surface tension of the paste P. As shown in FIG. 6, by maintaining the state where the tip portion 62 is buried in the paste P, it is possible to suppress air bubbles from entering the filled paste P. As shown in FIG. The first drawing speed is preferably set to the same speed as the rising speed of the liquid surface of the paste P within the nozzle portion 11 during filling. An example of the first drawing speed is 8 mm/s or more and 20 mm/s or less. In this embodiment, a case where the first drawing speed is 15 mm/s will be described as an example.
　第二充填工程では、図７に示すように、制御部９は、昇降部５によって第一引抜速度よりも遅い第二引抜速度で充填ノズル６の先端部６２をＢ点からＣ点（図６参照）まで引き抜きながら、圧力ｐ１（第二吐出速度が第一吐出速度と同じ場合の一例）でペーストＰを充填ノズル６から吐出させる。第二引抜速度は、時刻ｔ２から時刻ｔ３までのラインＬの傾きに対応する。制御部９は、先端部６２がＣ点に到達すると、充填を終了（充填工程を終了）する（時刻ｔ３）。充填済みのシリンジ１は、図６及び図８に示すように、空間Ｓ１、空間Ｓ２及びキャップ内空間Ｓ３にペーストＰを充填された状態の充填済み容器となる。 In the second filling step, as shown in FIG. 7, the controller 9 moves the tip portion 62 of the filling nozzle 6 from point B to point C (see FIG. ), the paste P is discharged from the filling nozzle 6 at a pressure p1 (an example of the case where the second discharge speed is the same as the first discharge speed). The second drawing speed corresponds to the slope of the line L from time t2 to time t3. When the tip portion 62 reaches the point C, the controller 9 ends the filling (ends the filling process) (time t3). The filled syringe 1 becomes a filled container in which the space S1, the space S2, and the space S3 in the cap are filled with the paste P, as shown in FIGS.
　第二引抜速度は、例えば第一引抜速度の５０％以上９０％以下の速度に設定される。第二引抜速度の一例は、５ｍｍ／ｓ以上１５ｍｍ／ｓ以下である。本実施形態では、第二引抜速度が１５ｍｍ／ｓである場合を例示して説明する。第二引抜速度は、ペーストＰの粘性や表面張力との関係で、先端部６２が、ペーストＰに埋没された状態を維持する速度に設定される。先端部６２がペーストＰに埋没された状態を維持することで、充填されたペーストＰへの気泡混入を抑制することができる。第二引抜速度は、充填工程が終了するまでの間、先端部６２がペーストＰに埋没された状態を維持することができる速度であればよい。第二引抜速度は、例えば、充填時における直胴部分１０ａ内でのペーストＰの液面の上昇速度と同じ速度に設定されると、充填工程が終了するまでの間、先端部６２がペーストＰに埋没された状態を確実に維持することができるため好ましい。 The second drawing speed is set to, for example, 50% or more and 90% or less of the first drawing speed. An example of the second drawing speed is 5 mm/s or more and 15 mm/s or less. In this embodiment, a case where the second drawing speed is 15 mm/s will be described as an example. The second drawing speed is set to a speed at which the leading end portion 62 is kept buried in the paste P in relation to the viscosity and surface tension of the paste P. By maintaining the state in which the tip portion 62 is buried in the paste P, air bubbles can be suppressed from entering the paste P that has been filled. The second drawing speed may be a speed at which the tip portion 62 can be kept buried in the paste P until the filling process is completed. For example, if the second drawing speed is set to the same speed as the rising speed of the liquid level of the paste P in the straight body portion 10a at the time of filling, the tip portion 62 is pulled out of the paste P until the filling process is completed. It is preferable because it is possible to reliably maintain the state of being buried in.
　本実施形態では、充填工程の終了後、例えば、充填ノズル６の引抜速度を一時的に第二引抜速度よりも遅くして、先端部６２を充填されたペーストＰからゆっくりと引き抜く。これにより、先端部６２からのペーストＰの液だれを抑制して充填されたペーストＰへの気泡混入を抑制できる。その後、引抜速度を加速して胴部１０から充填ノズル６を完全に引き抜くことができる。加速して引き抜くことで工程時間を短縮できる。 In this embodiment, after the filling process is completed, for example, the drawing speed of the filling nozzle 6 is temporarily made slower than the second drawing speed, and the tip portion 62 is slowly drawn out from the filled paste P. As a result, dripping of the paste P from the tip portion 62 can be suppressed, and air bubbles can be suppressed from entering the filled paste P. After that, the withdrawal speed can be accelerated to completely withdraw the filling nozzle 6 from the barrel 10 . The process time can be shortened by accelerating the extraction.
　第一引抜速度及び第二引抜速度の適切な範囲はシリンジ１の大きさや形状（例えば胴部１０やノズル部１１の内径）に依存するため、上述の具体的な速度の例示に限られず、シリンジ１の大きさや形状に合わせて適宜設定してよい。 Appropriate ranges of the first withdrawal speed and the second withdrawal speed depend on the size and shape of the syringe 1 (for example, the inner diameter of the barrel portion 10 and the nozzle portion 11). It may be appropriately set according to the size and shape of 1.
　図８を参照しつつ、充填済み容器としての充填済みのシリンジ１について詳述する。上述のごとく、シリンジ１は、空間Ｓ１、空間Ｓ２及びキャップ内空間Ｓ３にペーストＰを充填されている。充填済みのシリンジ１では、キャップ内空間Ｓ３における、先端部１１ａの筒部の先端面とキャップ２との間の空間、すなわち、ノズル部１１の先端部１１ａとキャップ部２０の内周面との境界（ノズル部１１の先端部１１ａとキャップ部２０とが接する部分又はノズル部１１の先端部１１ａとキャップ部２０との中間位置）近傍の空間である境界部分２０ｂにもペーストＰを充填されている。なお、境界部分２０ｂの定義に関する近傍、とは、先端部１１ａの筒部の筒の肉厚以内の距離のことを言う。 The filled syringe 1 as a filled container will be described in detail with reference to FIG. As described above, the syringe 1 is filled with the paste P in the space S1, the space S2, and the space S3 in the cap. In the filled syringe 1, the space between the distal end surface of the cylindrical portion of the distal end portion 11a and the cap 2 in the cap internal space S3, that is, the space between the distal end portion 11a of the nozzle portion 11 and the inner peripheral surface of the cap portion 20. A boundary portion 20b, which is a space near the boundary (a portion where the tip portion 11a of the nozzle portion 11 and the cap portion 20 contact or an intermediate position between the tip portion 11a of the nozzle portion 11 and the cap portion 20), is also filled with the paste P. there is Note that the neighborhood in the definition of the boundary portion 20b means a distance within the wall thickness of the cylindrical portion of the distal end portion 11a.
　シリンジ１では、空間Ｓ２及びキャップ内空間Ｓ３にペーストＰが充填されることで、シリンジ１の使用時（例えば、シリンジ１のペーストＰが使用される塗布装置に、キャップ２を取り外したシリンジ１を搭載してノズル部１１を当該塗布装置に接続した際）における、ノズル部１１への気泡混入を抑制できる。これにより、シリンジ１のペーストＰを使用する際に、空打ちや銀ペーストの均一性と塗布作業性を損なわせる問題を抑制できる。また、ノズル部１１へ混入した気泡を除去するために、ノズル部１１内のペーストＰを一定量押し出して捨てるような操作が不要になり、ペーストＰを無駄なく使用可能となる。そのため、ペーストＰが銀ペーストのように高価なものである場合には経済的なメリットは極めて大きくなる。 In the syringe 1, the space S2 and the space S3 in the cap are filled with the paste P, so that when the syringe 1 is used (for example, the syringe 1 with the cap 2 removed is attached to the coating device in which the paste P of the syringe 1 is used) When the nozzle portion 11 is mounted and connected to the coating apparatus, air bubbles can be suppressed from entering the nozzle portion 11 . As a result, when using the paste P of the syringe 1, it is possible to suppress the problem of empty shots and deterioration of the uniformity and coating workability of the silver paste. In addition, the operation of pushing out a certain amount of the paste P in the nozzle portion 11 and throwing it away in order to remove air bubbles mixed in the nozzle portion 11 is not required, and the paste P can be used without waste. Therefore, if the paste P is expensive such as silver paste, the economic advantage is extremely large.
　シリンジ１では、特にキャップ内空間Ｓ３にペーストＰが充填されることで、キャップ２を取り外した際のノズル部１１への気泡混入を抑制できる。図９に示すように、シリンジ１では、キャップ内空間Ｓ３にペーストＰが充填されていることで、キャップ２を取り外した際に、キャップ内空間Ｓ３に充填されていたペーストＰの一部Ｐ１が、ノズル部１１の先端部１１ａよりも先端側に突出した状態（先端部１１ａに付着して残留した状態）で残留する。そのため、キャップ２の取り外し時におけるノズル部１１の筒内への空気（気泡）の混入を抑制できる。 In the syringe 1, especially by filling the paste P into the space S3 in the cap, it is possible to suppress air bubbles from entering the nozzle portion 11 when the cap 2 is removed. As shown in FIG. 9, in the syringe 1, the space S3 in the cap is filled with the paste P, so that when the cap 2 is removed, a portion P1 of the paste P filled in the space S3 in the cap is , and remains in a state of protruding toward the tip side of the tip portion 11a of the nozzle portion 11 (a state of being attached and remaining on the tip portion 11a). Therefore, it is possible to prevent air (bubbles) from entering the cylinder of the nozzle portion 11 when the cap 2 is removed.
　キャップ２の取り外し時におけるノズル部１１の筒内への空気（気泡）の混入の抑制効果を高めるためには、図３に示すように、ノズル部１１における先端部１１ａと筒底面２０ａとは、ノズル部１１の先端部１１ａの内径ｄ以上の距離ｈだけ離間していることが好ましい。これにより、キャップ内空間Ｓ３を十分に大きくしてキャップ内空間Ｓ３に充填されるペーストＰの容量を確保して、キャップ２を取り外した際に、ノズル部１１の先端部１１ａよりも先端側に突出した状態で残留するペーストＰの一部Ｐ１（図９参照）の形成を確実ならしめる。また、ノズル部１１の先端部１１ａの内径ｄ以上の距離ｈだけ離間していることで、キャップ２を取り外した際に、ノズル部１１の先端部１１ａよりも先端側に突出した状態で残留するペーストＰの一部Ｐ１の形成を促進できる。これらにより、キャップ２の取り外し時におけるノズル部１１の筒内への空気（気泡）の混入を抑制できる。 In order to enhance the effect of suppressing the entry of air (bubbles) into the cylinder of the nozzle portion 11 when the cap 2 is removed, as shown in FIG. It is preferable that they are separated by a distance h equal to or greater than the inner diameter d of the tip portion 11 a of the nozzle portion 11 . As a result, the capacity of the paste P to be filled in the cap internal space S3 is secured by sufficiently enlarging the cap internal space S3. It ensures the formation of a portion P1 (see FIG. 9) of the paste P remaining in a projecting state. In addition, since the distance h is the distance equal to or greater than the inner diameter d of the tip portion 11a of the nozzle portion 11, when the cap 2 is removed, it remains in a state of protruding to the tip side from the tip portion 11a of the nozzle portion 11. Formation of the portion P1 of the paste P can be facilitated. As a result, air (bubbles) can be prevented from entering the cylinder of the nozzle portion 11 when the cap 2 is removed.
　充填済みのシリンジ１では、キャップ内空間Ｓ３における、ノズル部１１の先端部１１ａとキャップ部２０の内周面との境界部分２０ｂにもペーストＰが充填されていることで、キャップ２の取り外し時におけるノズル部１１の筒内への空気（気泡）の混入抑制を更に確実ならしめる。キャップ２の取り外し時において、境界部分２０ｂのペーストＰがノズル部１１の内側へ移動するため、ノズル部１１の筒内への空気（気泡）が混入しにくくなるためである。境界部分２０ｂのペーストＰにより、ノズル部１１の先端部１１ａよりも先端側に突出した状態で残留するペーストＰの一部Ｐ１の形成も促進される。これらにより、キャップ２の取り外し時におけるノズル部１１の筒内への空気（気泡）の混入を抑制できる。 In the filled syringe 1, the boundary portion 20b between the tip portion 11a of the nozzle portion 11 and the inner peripheral surface of the cap portion 20 in the cap internal space S3 is also filled with the paste P, so that when the cap 2 is removed, This further ensures the suppression of air (bubbles) from entering the cylinder of the nozzle portion 11 in . This is because the paste P in the boundary portion 20b moves inside the nozzle portion 11 when the cap 2 is removed, so air (bubbles) is less likely to enter the cylinder of the nozzle portion 11 . The paste P in the boundary portion 20b also promotes the formation of a portion P1 of the paste P that remains in a state of protruding further to the tip side than the tip portion 11a of the nozzle portion 11 . As a result, it is possible to prevent air (bubbles) from entering the cylinder of the nozzle portion 11 when the cap 2 is removed.
　特に、ペーストＰが所定の粘度及び揺変性を有することから、図９に示すように、キャップ２を取り外した際に、ノズル部１１内（内部空間Ｓ内）のペーストＰが流れ出る（垂れる）ことなく、且つ、上述の境界部分２０ｂのペーストＰの移動も伴って、ノズル部１１の先端部１１ａよりも先端側に突出した状態で残留するペーストＰの一部Ｐ１の形成が促進される。このような作用によっても、キャップ２の取り外し時におけるノズル部１１の筒内への空気（気泡）の混入を抑制できる。 In particular, since the paste P has a predetermined viscosity and thixotropy, as shown in FIG. In addition, along with the movement of the paste P at the boundary portion 20b described above, the formation of the part P1 of the paste P remaining in a state of protruding further to the tip side than the tip portion 11a of the nozzle portion 11 is promoted. This action can also prevent air (bubbles) from entering the cylinder of the nozzle portion 11 when the cap 2 is removed.
　充填済みのシリンジ１は、図１０に示すように、後端部の開口からプランジャ１８と封止蓋１９とをこの順で挿入されて、後端側の開口を封止された状態で出荷されるとよい。そして、ペーストＰの塗布機や接着装置などでペーストＰの供給容器として使用される。 As shown in FIG. 10, the filled syringe 1 is shipped in a state in which the plunger 18 and the sealing lid 19 are inserted in this order from the rear end opening and the rear end side opening is sealed. good. Then, it is used as a supply container for the paste P in a paste P applicator, an adhesive device, or the like.
　充填済みのシリンジ１は気泡混入が抑制されているため、ペーストＰの塗布機や接着装置などで脱泡処理（例えば、遠心力を利用した脱泡処理）を要しない。そのため、使用時の作業効率が向上するメリットもある。また、脱泡による分散状態の偏りの発生及びこれによる性能劣化を回避できる。特に、高度なブレンドがなされたペーストＰ、例えば、銀微粒子の粒度分布のピークがふた山以上になるようにブレンドされたペーストＰでは、脱泡操作による分散状態の偏りが生じやすいところ、このような分散状態の偏り発生による性能劣化を防止できる点は大きなメリットである。 Since air bubbles are suppressed in the filled syringe 1, defoaming treatment (for example, defoaming treatment using centrifugal force) is not required with a paste P applicator or adhesive device. Therefore, there is also the merit of improving work efficiency during use. In addition, it is possible to avoid the occurrence of unevenness in the dispersed state due to defoaming and the resulting deterioration in performance. In particular, paste P that is highly blended, for example, paste P that is blended so that the peak of the particle size distribution of silver fine particles is more than two peaks, tends to cause uneven dispersion due to the defoaming operation. It is a great merit that it can prevent performance deterioration due to occurrence of unbalanced dispersion state.
　以上のようにして、ノズル部への気泡混入を抑制できるシリンジの充填方法及び充填装置を提供することができる。 As described above, it is possible to provide a syringe filling method and a filling apparatus capable of suppressing air bubbles from entering the nozzle portion.
〔別実施形態〕
（１）上記実施形態では、第二充填工程において、圧力ｐ１でペーストＰを充填ノズル６から吐出させる場合を説明したが、図１１に示すように、第二充填工程においては、圧力ｐ１よりも高い圧力ｐ２（第二吐出速度が第一吐出速度よりも速い場合の一例）でペーストＰを充填ノズル６から吐出させてもよい。このようにすれば、シリンジ１の充填に要する工程時間を短縮できる。圧力ｐ２は、一例として３００ｋＰａ以上５００ｋＰａ以下に設定される。適切な圧力ｐ２の値やその範囲は充填ノズル６内の流路形状（たとえば、ニードル６１の内径や長さ）に依存するため、必要に応じて変更してよい。 [Another embodiment]
(1) In the above embodiment, the case where the paste P is discharged from the filling nozzle 6 at the pressure p1 in the second filling process has been described, but as shown in FIG. The paste P may be ejected from the filling nozzle 6 at a high pressure p2 (an example of when the second ejection speed is faster than the first ejection speed). In this way, the process time required for filling the syringe 1 can be shortened. As an example, the pressure p2 is set to 300 kPa or more and 500 kPa or less. Since the appropriate value and range of the pressure p2 depend on the shape of the flow path inside the filling nozzle 6 (for example, the inner diameter and length of the needle 61), they may be changed as necessary.
（２）上記実施形態では、ノズル部１１の軸心Ｘは直胴部分１０ａの軸心Ｙに沿うように配置されている場合、特に、軸心Ｘは軸心Ｙと重複している場合を例示して説明した。しかし、軸心Ｘは軸心Ｙと重複せず、軸心Ｙに沿うのみであってもよい。軸心Ｘが軸心Ｙと重複せずとも、ニードル６１は、その長手方向をノズル部１１の軸心Ｘに沿わせて（例えば、軸心Ｘと重複させて）ノズル部１１に挿入することができる。 (2) In the above embodiment, when the axis X of the nozzle portion 11 is arranged along the axis Y of the straight body portion 10a, in particular, when the axis X overlaps with the axis Y. explained by way of example. However, the axis X may not overlap with the axis Y and may only be along the axis Y. Even if the axis X does not overlap with the axis Y, the needle 61 can be inserted into the nozzle part 11 with its longitudinal direction along the axis X of the nozzle part 11 (for example, overlapping with the axis X). can be done.
（３）上記実施形態では、ノズル部１１の軸心Ｘは直胴部分１０ａの軸心Ｙに沿うように配置されている場合を例示して説明した。しかし、軸心Ｘは軸心Ｙに沿っていなくてもよい。この場合、例えば可撓性のある材料でニードル６１を形成するなどしてニードル６１を可撓性のあるものとし、ニードル６１をノズル部１１の内壁に沿わせて（例えば、ノズル部１１の内壁面に摺接させながら）ノズル部１１に挿入すれば充填できる。 (3) In the above embodiment, the case where the axis X of the nozzle portion 11 is arranged along the axis Y of the straight body portion 10a has been exemplified and explained. However, the axis X does not have to be along the axis Y. In this case, the needle 61 is made flexible by, for example, forming the needle 61 with a flexible material, and the needle 61 is arranged along the inner wall of the nozzle portion 11 (for example, inside the nozzle portion 11). It can be filled by inserting it into the nozzle part 11 while sliding it against the wall surface.
（４）上記実施形態では、制御部９は、充填ノズル６の先端部６２を胴部１０の直胴部分１０ａ内の所定位置（図６のＣ点）まで引き抜いた時点で、液量調整部４に充填ノズル６へのペーストＰの供給を停止させ、充填ノズル６からのペーストＰの吐出を停止させる場合を説明したが、ペーストＰの吐出を停止させるタイミングは、先端部６２をＣ点まで引き抜いたタイミングに限られない。例えば、保持部７に重量検知センサを設けてシリンジ１の重量を検知可能とし、ペーストＰが充填されたシリンジ１の重量が所定の重量になった時点でペーストＰの吐出を停止させてもよい。 (4) In the above embodiment, the control unit 9 causes the liquid volume adjustment unit to 4, the supply of the paste P to the filling nozzle 6 is stopped, and the discharge of the paste P from the filling nozzle 6 is stopped. It is not limited to the timing of withdrawal. For example, a weight detection sensor may be provided in the holding portion 7 to detect the weight of the syringe 1, and the ejection of the paste P may be stopped when the weight of the syringe 1 filled with the paste P reaches a predetermined weight. .
（５）上記実施形態では、液量調整部４は、タンク３から供給されるペーストＰの充填ノズル６への供給量を調整し、且つ、充填ノズル６へのペーストＰの送液を禁止することのできる開度調整弁などのバルブ４０を有し、バルブ４０は、タンク３から充填ノズル６へ供給されるペーストＰの送液圧力を調整することで充填ノズル６への供給量を調整する場合を例示して説明した。しかし、ペーストＰの送液圧力の調整は上記態様に限られない。 (5) In the above embodiment, the liquid volume adjustment unit 4 adjusts the supply amount of the paste P supplied from the tank 3 to the filling nozzle 6, and prohibits the feeding of the paste P to the filling nozzle 6. The valve 40 adjusts the feeding pressure of the paste P supplied from the tank 3 to the filling nozzle 6 to adjust the supply amount to the filling nozzle 6. A case has been illustrated and explained. However, adjustment of the liquid feeding pressure of the paste P is not limited to the above mode.
　たとえば、液量調整部４が、バルブ４０では、ペーストＰの供給と停止のみを制御し、圧力検出部４９で検出された圧力情報に基づいてコントローラ４２でタンク３に供給する圧縮空気の流量又圧力の調整を行うことによりペーストＰの送液圧力の調整を行ってもよい。液量調整部４によるペーストＰの送液圧力の調整方法や態様は上記実施形態に限定されない。 For example, the liquid volume adjustment unit 4 controls only the supply and stop of the paste P in the valve 40, and the controller 42 based on the pressure information detected by the pressure detection unit 49. The feeding pressure of the paste P may be adjusted by adjusting the pressure. The adjustment method and aspect of the liquid feeding pressure of the paste P by the liquid volume adjustment unit 4 are not limited to the above embodiment.
（６）上記実施形態では、充填ノズル６のニードル６１の先端部６２がノズル部１１の先端部１１ａの開口から突出するまで充填ノズル６をノズル部１１の筒内部に挿入し、充填ノズル６の先端部６２がノズル部１１の先端部１１ａの開口から突出した状態で、充填ノズル６からペーストＰを吐出開始する場合を説明した。しかし、ペーストＰを吐出開始する位置は、上記態様に限られない。たとえば、充填ノズル６のニードル６１の先端部６２をノズル部１１の筒内部（例えば、先端部６２の先端面が先端部１１ａの先端面と軸心Ｘに沿う方向において同じ位置）に挿入し、充填ノズル６の先端部６２がノズル部１１の筒内部に位置する状態で、充填ノズル６からペーストＰを吐出開始してもよい。充填ノズル６により内部空間Ｓとキャップ内空間Ｓ３とにペーストＰを充填することができればキャップ２の取り外し時におけるノズル部１１の筒内への空気（気泡）の混入を抑制できる。 (6) In the above embodiment, the filling nozzle 6 is inserted into the cylinder of the nozzle portion 11 until the tip portion 62 of the needle 61 of the filling nozzle 6 protrudes from the opening of the tip portion 11a of the nozzle portion 11. The case where the paste P is started to be discharged from the filling nozzle 6 in a state where the tip portion 62 protrudes from the opening of the tip portion 11a of the nozzle portion 11 has been described. However, the position where the paste P is started to be discharged is not limited to the above mode. For example, the tip portion 62 of the needle 61 of the filling nozzle 6 is inserted into the cylinder of the nozzle portion 11 (for example, the tip surface of the tip portion 62 is at the same position as the tip surface of the tip portion 11a in the direction along the axis X), The discharge of the paste P from the filling nozzle 6 may be started while the tip portion 62 of the filling nozzle 6 is positioned inside the cylinder of the nozzle portion 11 . If the filling nozzle 6 can fill the internal space S and the cap internal space S3 with the paste P, it is possible to prevent air (bubbles) from entering the cylinder of the nozzle portion 11 when the cap 2 is removed.
（７）上記実施形態では、ペーストＰの一例として、導電性フィラーとして銀の微粒子を溶剤や基材樹脂等に分散した熱伝導性導電性接着剤である場合を例示して説明した。しかし、ペーストＰは、導電性フィラーが分散された場合に限られない。また、導電性フィラーが銀の微粒子である場合に限られない。ペーストＰのフィラーとしては、銀の微粒子以外にも、白金、ルテニウム、ロジウム、パラジウム、オスミウム、イリジウム、金、銅などの金属系微粒子や、アクリルやポリエチレン、ポリプロピレン、ポリスチレン、ポリエステルなどの熱可塑性樹脂の微粒子が分散されたものであってもよい。 (7) In the above embodiment, as an example of the paste P, a thermally conductive conductive adhesive in which fine particles of silver are dispersed as a conductive filler in a solvent, a base resin, or the like has been exemplified and explained. However, the paste P is not limited to the case where the conductive filler is dispersed. In addition, the conductive filler is not limited to silver fine particles. As fillers for Paste P, in addition to fine particles of silver, fine particles of metals such as platinum, ruthenium, rhodium, palladium, osmium, iridium, gold, and copper, and thermoplastic resins such as acrylic, polyethylene, polypropylene, polystyrene, and polyester can be used. fine particles may be dispersed.
　なお、上記実施形態（別実施形態を含む、以下同じ）で開示される構成は、矛盾が生じない限り、他の実施形態で開示される構成と組み合わせて適用することが可能であり、また、本明細書において開示された実施形態は例示であって、本発明の実施形態はこれに限定されず、本発明の目的を逸脱しない範囲内で適宜改変することが可能である。 It should be noted that the configurations disclosed in the above embodiments (including other embodiments, the same shall apply hereinafter) can be applied in combination with configurations disclosed in other embodiments as long as there is no contradiction. The embodiments disclosed in this specification are exemplifications, and the embodiments of the present invention are not limited thereto, and can be modified as appropriate without departing from the object of the present invention.
　本発明は、充填方法及び充填装置に適用できる。 The present invention can be applied to filling methods and filling devices.
１　　　：シリンジ
２　　　：キャップ
３　　　：タンク
４　　　：液量調整部
５　　　：昇降部
６　　　：充填ノズル
７　　　：保持部
８　　　：支持本体
９　　　：制御部
１０　　：胴部
１０ａ　：直胴部分
１０ｂ　：クリップ部
１０ｃ　：テーパー部
１１　　：ノズル部
１１ａ　：先端部
１２　　：スリーブ
１３　　：ネジ部
１８　　：プランジャ
１９　　：封止蓋
２０　　：キャップ部
２０ａ　：筒底面
２０ｂ　：境界部分
２１　　：係合部
２３　　：キャップ側ネジ部
４０　　：バルブ
４１　　：レギュレータ
４２　　：コントローラ
４９　　：圧力検出部
５０　　：シリンダ
５９　　：位置検出部
６０　　：ノズル基部
６１　　：ニードル
６２　　：先端部
９０　　：記憶部
Ａ　　　：コンプレッサ
Ｃ　　　：パーソナルコンピュータ
Ｌ　　　：ライン
Ｍ　　　：充填装置
Ｎ　　　：通信路
Ｐ　　　：ペースト
Ｐ１　　：一部
Ｓ　　　：内部空間
Ｓ１　　：空間
Ｓ２　　：空間
Ｓ３　　：キャップ内空間
Ｘ　　　：軸心
Ｙ　　　：軸心
ｄ　　　：内径
ｈ　　　：距離
ｐ１　　：圧力
ｐ２　　：圧力 1 : Syringe 2 : Cap 3 : Tank 4 : Liquid volume adjusting unit 5 : Lifting unit 6 : Filling nozzle 7 : Holding unit 8 : Support body 9 : Control unit 10 : Body portion 10a : Straight body portion 10b : Clip portion 10c : Tapered portion 11 : Nozzle portion 11a : Tip portion 12 : Sleeve 13 : Threaded portion 18 : Plunger 19 : Sealing lid 20 : Cap portion 20a : Bottom surface 20b : Boundary portion 21 : Engaging portion 23 : Cap-side threaded portion 40 : Valve 41 : Regulator 42 : Controller 49 : Pressure Detector 50 : Cylinder 59 : Position Detector 60 : Nozzle Base 61 : Needle 62 : Tip 90 : Memory A : Compressor C : Personal Computer L : Line M : Filling Device N : Communication path P : Paste P1 : Partial S : Internal space S1 : Space S2 : Space S3 : Cap inner space X : Axial center Y : Axial center d : Inner diameter h : Distance p1 : Pressure p2 : Pressure

Claims (8)

  1. 　ペーストが充填される筒状の胴部、前記胴部の先端部に設けられ、前記胴部よりも細い筒状のノズル部、及び、前記ノズル部の先端に外嵌された有底筒状のキャップを有し、前記ノズル部の先端開口から前記ペーストを吐出させるシリンジへの前記ペーストの充填方法であって、
    　充填ノズルから前記ペーストを吐出して前記胴部及び前記ノズル部の内部空間に前記ペーストを充填する充填工程を含み、
    　前記充填工程は、前記充填ノズルを前記ノズル部の筒内部に挿入した状態で、前記充填ノズルから前記ペーストを吐出開始する充填方法。     A cylindrical body portion filled with the paste, a cylindrical nozzle portion provided at the tip of the body portion and thinner than the body portion, and a bottomed cylindrical nozzle portion fitted to the tip of the nozzle portion. A method of filling the paste into a syringe that has a cap and ejects the paste from a tip opening of the nozzle part,
    A filling step of discharging the paste from a filling nozzle and filling the internal space of the body and the nozzle with the paste,
    The filling step includes a filling method in which the paste is started to be discharged from the filling nozzle while the filling nozzle is inserted into the cylinder of the nozzle portion.
  2. 　前記充填ノズルを前記胴部の筒内部を介して前記ノズル部の筒内部に挿入する挿入工程を更に含み、
    　前記挿入工程を実行終了後に前記充填工程を実行する請求項１に記載の充填方法。     further comprising an inserting step of inserting the filling nozzle into the cylinder of the nozzle portion through the cylinder of the body;
    2. The filling method according to claim 1, wherein the filling step is executed after execution of the inserting step is completed.
  3. 　前記挿入工程は、前記充填ノズルの先端が前記ノズル部の先端開口から突出するまで前記充填ノズルを前記ノズル部の筒内部に挿入し、
    　前記充填工程は、前記充填ノズルの先端が前記ノズル部の先端開口から突出した状態で、前記充填ノズルから前記ペーストを吐出開始する請求項２に記載の充填方法。     In the inserting step, the filling nozzle is inserted into the cylinder of the nozzle portion until the tip of the filling nozzle protrudes from the tip opening of the nozzle portion,
    3. The filling method according to claim 2, wherein in the filling step, the paste is started to be discharged from the filling nozzle while the tip of the filling nozzle protrudes from the tip opening of the nozzle portion.
  4. 　前記充填工程は、
    　　第一引抜速度で前記充填ノズルを前記ノズル部から引き抜きながら、第一吐出速度で前記ペーストを前記充填ノズルから吐出する第一充填工程と、
    　　第二引抜速度で前記充填ノズルを前記ノズル部又は前記胴部から引き抜きながら、第二吐出速度で前記ペーストを前記充填ノズルから吐出する第二充填工程とを含み、
    　前記第二引抜速度は、前記第一引抜速度よりも引抜速度が遅く、
    　前記第二吐出速度は、前記第一吐出速度と同じ又は前記第一吐出速度よりも吐出速度が速い請求項２又は３に記載の充填方法。     The filling step includes
    a first filling step of discharging the paste from the filling nozzle at a first discharge speed while pulling the filling nozzle out of the nozzle portion at a first drawing speed;
    a second filling step of discharging the paste from the filling nozzle at a second discharge speed while withdrawing the filling nozzle from the nozzle portion or the body portion at a second drawing speed;
    The second drawing speed is slower than the first drawing speed,
    4. The filling method according to claim 2, wherein the second ejection speed is the same as or faster than the first ejection speed.
  5. 　前記第二引抜速度は、前記ノズル部から引き抜きに伴って、引抜速度が増大される請求項４に記載の充填方法。 The filling method according to claim 4, wherein the second drawing speed is increased as the material is drawn out from the nozzle part.
  6. 　前記挿入工程は、前記充填ノズルの先端を前記ノズル部の内壁に沿わせて挿入する、請求項２から５のいずれか一項に記載の充填方法。 The filling method according to any one of claims 2 to 5, wherein the inserting step inserts the tip of the filling nozzle along the inner wall of the nozzle portion.
  7. 　ペーストが充填される筒状の胴部、前記胴部の先端部に設けられ、前記胴部よりも細い筒状のノズル部、及び、前記ノズル部の先端に外嵌された有底筒状のキャップを有し、前記ノズル部の先端開口から前記ペーストを吐出させるシリンジへの前記ペーストを充填する充填装置であって、
    　前記ペーストを吐出して、前記胴部及び前記ノズル部の内部空間に前記ペーストを充填する充填ノズルと、
    　前記充填ノズルによる前記ペーストの吐出を制御する制御部と、を備え、
    　前記制御部は、前記充填ノズルが前記ノズル部の筒内部に挿入された状態で、前記充填ノズルから前記ペーストを吐出開始させて、前記胴部及び前記ノズル部の内部空間に前記ペーストを充填する充填装置。     A cylindrical body portion filled with paste, a cylindrical nozzle portion provided at the tip of the body portion and thinner than the body portion, and a bottomed cylindrical nozzle portion fitted to the tip of the nozzle portion. A filling device that has a cap and fills the paste into a syringe that discharges the paste from the tip opening of the nozzle part,
    a filling nozzle that discharges the paste and fills the internal space of the body and the nozzle with the paste;
    a control unit that controls ejection of the paste by the filling nozzle,
    The control unit starts discharging the paste from the filling nozzle in a state in which the filling nozzle is inserted into the cylinder of the nozzle unit, and fills the internal space of the body and the nozzle unit with the paste. filling device.
  8. 　前記制御部は、前記充填ノズルの先端が前記ノズル部の先端開口から突出するまで前記胴部の筒内部を介して前記充填ノズルを前記ノズル部の筒内部に挿入し、前記充填ノズルの先端が前記ノズル部の先端開口から突出した状態で、前記充填ノズルから前記ペーストを吐出開始させて、前記胴部及び前記ノズル部の内部空間に前記ペーストを充填する請求項７に記載の充填装置。 The control section inserts the filling nozzle into the cylinder of the nozzle section through the cylinder interior of the body section until the tip of the filling nozzle protrudes from the tip opening of the nozzle section. 8. The filling device according to claim 7, wherein the paste is started to be discharged from the filling nozzle in a state of protruding from the tip opening of the nozzle portion, and the paste is filled in the inner space of the body portion and the nozzle portion.
PCT/JP2022/004325 2021-02-05 2022-02-03 Filling method and filling device WO2022168929A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54110096A (en) * 1978-02-17 1979-08-29 Yoshino Kogyosho Co Ltd Method and nozzle for filling content in tube
JPH0387602U (en) * 1989-12-25 1991-09-06
JPH0986503A (en) * 1995-09-22 1997-03-31 Hitachi Zosen Corp Liquid filling device and method for filling container with high-viscosity liquid
JP2002037203A (en) * 2000-07-26 2002-02-06 Nakakin:Kk Method for filling liquid into container
JP2008094462A (en) * 2006-10-13 2008-04-24 Top:Kk Filling device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54110096A (en) * 1978-02-17 1979-08-29 Yoshino Kogyosho Co Ltd Method and nozzle for filling content in tube
JPH0387602U (en) * 1989-12-25 1991-09-06
JPH0986503A (en) * 1995-09-22 1997-03-31 Hitachi Zosen Corp Liquid filling device and method for filling container with high-viscosity liquid
JP2002037203A (en) * 2000-07-26 2002-02-06 Nakakin:Kk Method for filling liquid into container
JP2008094462A (en) * 2006-10-13 2008-04-24 Top:Kk Filling device

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