CN104175508A - Injection molding machine and setting and supporting device thereof - Google Patents
Injection molding machine and setting and supporting device thereof Download PDFInfo
- Publication number
- CN104175508A CN104175508A CN201410220373.XA CN201410220373A CN104175508A CN 104175508 A CN104175508 A CN 104175508A CN 201410220373 A CN201410220373 A CN 201410220373A CN 104175508 A CN104175508 A CN 104175508A
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- screw rod
- moulding material
- material supply
- speed
- supply unit
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76344—Phase or stage of measurement
- B29C2945/76351—Feeding
- B29C2945/76354—Feeding raw materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76595—Velocity
- B29C2945/76605—Velocity rotational movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76658—Injection unit
- B29C2945/76665—Injection unit screw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76792—Auxiliary devices
- B29C2945/76809—Auxiliary devices raw material feeding devices
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
There is provided an injection molding machine and setting and supporting device thereof. in which it's possible to support the setting of a molding condition. An injection molding machine contains a cylinder (11) in a rear portion of a casting material supply channel (14) contains materials; a material supply portion (80) which supplies a mold material casting material supply channel (14); a worm (20), which rotates in the cylinder (11) and thereby vorw the casting material rts sent; a supply condition detection section (70) that detects an intake state of the molding material by the screw (20); and an adjustment support device (40) that supports the adjusting a molding condition. The adjustment support device (40) calculates the maximum feed rate of the material feed section (80) corresponding to the speed of the screw (20) or the minimum speed of the screw (20) corresponding to a feed rate of the material feed section (80) based on a detection result of the supply state detection section (70) wherein the feed rate of the material feed section (80) and a feed rate of the screw (20) coincide with each other.
Description
Technical field
The application advocates the priority of No. 2013-110930th, Japanese patent application based on May 27th, 2013 application.The full content of its application is applied in this description by reference.
The present invention relates to the set supporting device of a kind of injection (mo(u)lding) machine and injection (mo(u)lding) machine.
Background technology
Injection (mo(u)lding) machine possesses: cylinder body; Material supply unit is supplied with moulding material in cylinder body; And screw rod, be adapted in cylinder body rotation freely and free to advance or retreat.The moulding material being supplied in the spiral helicine groove forming on screw rod is sent to front with the rotation of screw rod.Be provided with multiple band heaters in the periphery of cylinder body, the heat of multiple band heaters is delivered to cylinder body and is melted in gradually the moulding material advancing in cylinder body.Liquid phase moulding material is sent to the front of screw rod and is accumulated in cylinder body front portion, and screw rod retreats with this.Afterwards, if screw rod is advanced, the moulding material that is accumulated in screw rod front penetrates from the nozzle of the leading section that is formed at cylinder body, and is filled in the die cavity space of die device.For example, by making the molten resin of filling solidify to obtain products formed (referring to Patent Document 1).
Patent documentation 1: TOHKEMY 2004-351661 communique
In the past, condition of molding relied on user's the repetition test such as experience or intuition to set, and the condition of setting expends time in.
Summary of the invention
The present invention completes in view of above-mentioned problem, and its object is to provide a kind of injection (mo(u)lding) machine of the setting that can support condition of molding.
In order to solve above-mentioned problem, a mode according to the present invention provides a kind of injection (mo(u)lding) machine, and it possesses:
Cylinder body, has moulding material supply port at rear portion;
Material supply unit, supplies with moulding material to described moulding material supply port;
Screw rod, by transferring described moulding material to be sent to front in described cylinder body inward turning;
Delivery status test section, the delivery status of the described moulding material of detection based on this screw rod; And
Set supporting device, supports the setting of condition of molding,
This set supporting device is according to the testing result of described delivery status test section, calculate the feed speed of described material supply unit and the transfer rate of described screw rod consistent, with the maximum feed speed of described material supply unit corresponding to the rotating speed of described screw rod or with the minimum speed of described screw rod corresponding to the feed speed of described material supply unit.
Invention effect:
According to a mode of the present invention, can obtain the injection (mo(u)lding) machine of the setting that can support condition of molding.
Brief description of the drawings
Fig. 1 is the figure that represents the injection (mo(u)lding) machine of one embodiment of the present invention.
Fig. 2 is the figure that represents an example of the pressure distribution of the moulding material transmitting along the spiral helicine groove that is formed at screw rod in measurement process.
The figure of one example of state when Fig. 3 is moulding material arrival the 1st position that represents to accumulate in guide portion.
The figure of one example of state when Fig. 4 is moulding material arrival the 2nd position that represents to accumulate in guide portion.
Fig. 5 is the figure of an example of the rotating speed of feed screw while representing the invariablenes turning speed of screw rod and the relation of accumulating speed of moulding material.
In figure: 10-injection (mo(u)lding) machine, 11-cylinder body, 20-screw rod, 21-screw rod main body, 22-injection part, 23-scraping plate part, 24-pressure portion, 26-groove, 40-controller (set supporting device), 60-drive division, 70-delivery status test section, 71-the 1st light-emitting component, 72-the 1st photo detector, 73-the 2nd light-emitting component, 74-the 2nd photo detector, 80-material supply unit, 83-feeding cylinder body, 85-feed screw, 86-feeding motor.
Detailed description of the invention
Below, with reference to accompanying drawing to describing for implementing mode of the present invention.In each accompanying drawing, for identical or corresponding the structure identical or corresponding symbol of mark and description thereof is omitted.Below, the moving direction of the screw rod in filling work procedure is made as to front, the moving direction of the screw rod in measurement process is made as to rear and describes.
Fig. 1 is the figure that represents the injection (mo(u)lding) machine of one embodiment of the present invention.Injection (mo(u)lding) machine is to the die cavity space-filling liquid phase moulding material of die device.Die device is for example made up of fixed die and But moving die, is formed with die cavity space between fixed die and But moving die.The liquid phase moulding material that is filled in die cavity space is cured and obtains products formed.
Injection (mo(u)lding) machine 10 possesses: cylinder body 11, has moulding material supply port 14 at rear portion; Material supply unit 80, supplies with moulding material to moulding material supply port 14; Screw rod 20, by transferring moulding material to be sent to front in cylinder body 11 inward turnings; Drive division 60, drive screw 20; Delivery status test section 70, the delivery status of the moulding material of detection based on screw rod 20; And controller 40.
Screw rod 20 is adapted in the interior rotation of cylinder body 11 freely and free to advance or retreat vertically.Screw rod 20 is main by screw rod main body 21 and be provided in than screw rod main body 21 injection part 22 more on the front and form.Screw rod main body 21 possesses scraping plate part 23 and is disposed in the pressure portion 24 of the front end of scraping plate part 23.
Scraping plate part 23 possesses the 23a of rod-shaped body portion and gives prominence to and the helical form scraper plate 23b of formation to the outer peripheral face of this main part 23a, and is formed with spiral groove 26 along this scraper plate 23b.From the rear end forward end of scraping plate part 23, the degree of depth of groove 26 also can be constant, and screw compression ratio also can be constant.
The cylindrical portion that pressure portion 24 also can be greater than the 23a of rod-shaped body portion by external diameter forms.External diameter becomes large not shown circular cone shape gradually rake from main part 23a to cylindrical portion from can be set between main part 23a and cylindrical portion, and pressure portion 24 also can be made up of rake and cylindrical portion.
In addition, also can not arrange pressure portion 24 and spread all over whole screw rod main body 21 and form scraping plate part.Screw rod main body 21 also can be divided into and make the compression unit of its melting and each with a certain amount of metering portion that the moulding material of melting is measured when supplying with the supply unit of moulding material, moulding material that compression is supplied to from rear end forward end.Now, the degree of depth of screw-like channels is darker at supply unit, and in metering, portion is more shallow, and more forwards more shallow in compression unit.
The anti-backflow ring 33 of the bar portion 32 that injection part 22 is included in head 31 that front end possesses conical position, abut to form with the rear of this head 31, the surrounding that is disposed in this bar portion 32 and be installed on the sealing ring (lock ring) 34 of the front end of pressure portion 24.
Drive division 60 can be general structure, for example, have and make the measure motor that screw rod 20 rotates and the injection motor that screw rod 20 is advanced and retreat.
Material supply unit 80 is supplied with moulding material with the feed speed corresponding with the command value of carrying out self-controller 40 to the moulding material supply unit 14 of cylinder body 11.Moulding material supply unit 14 is formed at the rear portion of cylinder body 11.
Material supply unit 80 possesses feeding cylinder body 83, the tubular guide portion 84 of extending towards below from the front end of feeding cylinder body 83 of holding the hopper 82 of moulding material (such as resin particle), extend towards horizontal direction from the lower end of hopper 82, be adapted at feed screw 85 freely of the interior rotation of feeding cylinder body 83 and make feeding motor 86 that feed screw 85 rotates etc.In addition, feeding cylinder body 83 necessarily along continuous straight runs extends, for example, can extend obliquely with respect to horizontal direction, and outlet side also can be higher than entrance side.
Advance along the spiral groove forming at feed screw 85 along with the rotation of feed screw 85 from the interior moulding material to the 83 interior supplies of feeding cylinder body of hopper 82.Be sent to that moulding material in guide portion 84 drops in guide portion 84 and the moulding material supply port 14 that is supplied to cylinder body 11 from the front end of feed screw 85.In addition, the moulding material being supplied in feeding cylinder body 83 also can be heated (preheating) by not shown heater.Now, moulding material also can be preheated to not temperature that can melting, the predetermined temperature below for example glass transition point.
Then, refer again to Fig. 1, the action of the injection (mo(u)lding) machine during to injection moulding describes.Each action of injection (mo(u)lding) machine is controlled by controller 40.Controller 40 is made up of CPU41, the ROM42 that deposits control program etc., the read-write storage part such as RAM43, hard disk 44, input interface, output interface, timer and the counter etc. of depositing operation result etc.Controller 40 is stored in ROM42 or storage part 44 etc. program by carrying out with CPU41 realizes various functions.
In mold closing operation, make But moving die near fixed die.If But moving die contacts with fixed die, mold closing finishes.After mold closing finishes, then start matched moulds operation.
In matched moulds operation, between But moving die and fixed die, produce mold clamping force.Between the fixed die of matched moulds state and But moving die, be formed with die cavity space.In matched moulds operation, carry out filling work procedure, pressurize operation and refrigerating work procedure.
In filling work procedure, driving is injected motor and screw rod 20 is advanced with setting speed.The liquid phase moulding material that is accumulated in the front of screw rod 20 penetrates from the nozzle 12 of the front end formation at cylinder body 11, and is filled in the die cavity space of die device.The setting speed of screw rod 20 can be constant, also can change according to screw position or elapsed time.If screw rod 20 advances to precalculated position (so-called V/P switching position), start to carry out pressurize operation.In addition, if also can reach the stipulated time by elapsed time from filling work procedure starts, start pressurize operation.
In pressurize operation, driving is injected motor and is pushed screw rod 20 to front with setting pressure, and supplements the moulding material by the cooling volume shrinkage mass causing of the moulding material in die cavity space.The setting pressure of screw rod 20 can be constant, also can be according to changes such as elapsed time.The entrance (so-called cast gate) in die cavity space is sealed, after the adverse current preventing from the moulding material in die cavity space, begins to cool down operation.
In refrigerating work procedure, the moulding material in die cavity space is solidified.During refrigerating work procedure, can carry out measurement process, this measurement process measures the moulding material for next products formed.
In measurement process, drive measure motor to make screw rod 20 with setting speed rotation, and moulding material is sent to front along the spiral groove 26 forming on screw rod 20, and make gradually moulding material melting by the heat of heater h11～h13.Along with liquid phase moulding material is sent to the front of screw rod 20 and is accumulated in the front portion of cylinder body 11, screw rod 20 retreats.
In measurement process, should limit screw rod 20 and sharply retreat, can drive injection motor and screw rod 20 is applied to regulation back pressure.If screw rod 20 retreats to assigned position, and the moulding material of ormal weight is accumulated in the front of screw rod 20, and measurement process finishes.
And, in measurement process, drive into feed screw 85 to motor 86 rotated with setting speed.Moulding material supply port 14 from from material supply unit 80 to cylinder body 11 is supplied with moulding material.Moulding material is not detained and is directly sent to front by the rotation of screw rod 20 at moulding material supply port 14.The state of the moulding material without the interior tight filling molding material of the groove 26 to screw rod 20 in the groove 26 of screw rod 20 is sparse state (starvation).
Feed screw 85 and screw rod 20 can synchronous rotaries, also can start rotation simultaneously, finish rotation simultaneously.The setting speed of the setting speed of feed screw 85 and screw rod 20 also can be constant, also can change according to screw position or elapsed time.
Die sinking operation is carried out after refrigerating work procedure.In die sinking operation, make But moving die leave fixed die.After die sinking finishes, products formed is ejected from But moving die.
Fig. 2 is the figure that represents an example of the pressure distribution of the moulding material transmitting along the spiral groove forming in measurement process on screw rod.In Fig. 2, S0 represents the front position of pressure portion 24, and S1 represents the back-end location (being the boundary position of pressure portion 24 and scraping plate part 23) of pressure portion 24, and S2 represents the pressure rise position of the moulding material in scraping plate part 23.
In front position S0 and the front thereof of pressure portion 24, the pressure P 0 identical with the back pressure of screw rod 20 acts on moulding material.As shown in Figure 2, the pressure that acts on moulding material increases to the back-end location S1 of pressure portion 24 gradually from the front position S0 of pressure portion 24, reaches maximum pressure P1 at the back-end location S1 of pressure portion 24.As shown in Figure 2, the pressure that acts on moulding material rearward reduces gradually from the back-end location S1 of pressure portion 24, and the S2 place, pressure rise position of the moulding material in scraping plate part 23 roughly becomes 0.Moulding material is almost constant during measurement process with respect to the pressure rise position S2 of screw rod 20.
Pressure rise position S2 depends on that moulding material occupies the ratio in the space in the groove 26 of screw rod 20 etc., and depends on ratio of the rotating speed of screw rod 20 and the rotating speed of feed screw 85 etc.If the back-end location S1 of pressure rise position S2 in specific pressure portion 24, more by the prescribed limit at rear, for example measures the deviation of time and the deviation of buffer position is less, can stably obtain the good products formed of quality.
Therefore, controller 40 has support pressure rise position S2 becomes the function as set supporting device of the setting of the condition of molding of target location.In addition, set supporting device also can be arranged with 40 points of controllers, also can divide and is arranged and is connected with injection (mo(u)lding) machine with injection (mo(u)lding) machine.
Controller 40 is according to the testing result of drive state test section 70, the transfer rate of the feed speed of Calculating material supply unit 80 and screw rod 20 consistent, with the maximum feed speed of material supply unit 80 corresponding to the rotating speed of screw rod 20.At this, the feed speed of material supply unit 80 refers to the amount of the moulding material that material supply unit 80 time per units supply with to moulding material supply port 14.And the transfer rate of screw rod 20 refers to that screw rod 20 time per units are sent to the amount of the moulding material in front from moulding material supply port 14.
The transmission speed of screw rod 20 exists with ... the rotating speed of screw rod 20 and the feed speed of material supply unit 80.The rotating speed of screw rod 20 is larger, potential more of the amount of the moulding material that can transmit in screw rod 20 time per units.But while not supplying with moulding material completely by material supply unit 80, irrelevant with the rotating speed of screw rod 20, the transfer rate of screw rod 20 becomes 0.Therefore, the transfer rate of screw rod 20 exists with ... these both sides of feed speed of rotating speed and the material supply unit 80 of screw rod 20.
The feed speed of material supply unit 80 is that the standard speed corresponding with the rotating speed of screw rod 20 is when following, the moulding material of supplying with by material supply unit 80 does not accumulate near moulding material supply port 14 and is sent at once front, and the feed speed of material supply unit 80 is consistent with the transfer rate of screw rod 20.
On the other hand, if when the feed speed of material supply unit 80 is above standard speed, the moulding material of being supplied with by material supply unit 80 accumulates near moulding material supply port 14 and is deposited in moulding material supply port 14.Now, the transfer rate of the feed speed of material supply unit 80 and screw rod 20 is inconsistent.Now, the transfer rate of screw rod 20 is less than the feed speed of material supply unit 80, irrelevant and constant with the feed speed of material supply unit 80.
Controller 40 is according to the testing result of delivery status test section 70, the transfer rate of the feed speed of Calculating material supply unit 80 and screw rod 20 consistent, with the maximum (top) speed (following, to be called " rated rotational frequency ") of feed screw 85 corresponding to the rotating speed of screw rod 20.The rotating speed of feed screw 85 represents the feed speed of material supply unit 80, and the rotating speed of feed screw 85 is larger, and the feed speed of material supply unit 80 is larger.
In the time that size and dimension, the size and dimension of screw rod 20 and the kind of moulding material of cylinder body 11 is identical, the rated rotational frequency of feed screw 85 depends on the rotating speed of screw rod 20.The rotating speed of screw rod 20 is larger, potential more of the amount of the moulding material that screw rod 20 can transmit in time per unit, and the rated rotational frequency of feed screw 85 is larger.
The rotating speed of feed screw 85 is rated rotational frequency when following, by the rotation of screw rod 20, can be from moulding material supply port 14 conveyance moulding material forwards at once, and moulding material does not accumulate near moulding material supply port 14.
On the other hand, when the rotating speed of feed screw 85 is above standard rotating speed, by the rotation of screw rod 20, and cannot be from moulding material supply port 14 conveyance moulding material forwards at once.Therefore, if repeatedly carry out moulding action, moulding material will accumulate near moulding material supply port 14, and the moulding material overflowing from moulding material supply port 14 accumulates in guide portion 84.
The figure of one example of state when Fig. 3 is moulding material arrival the 1st position that represents to accumulate in guide portion.The figure of one example of state when Fig. 4 is moulding material arrival the 2nd position that represents to accumulate in guide portion.The 2nd top of position in the 1st position.
If accumulate in moulding material in guide portion 84 known and arrive the 1st position, receive from the light income of the 1st photo detector 72 of the light of the 1st light-emitting component 71 and change, the moulding material accumulating in guide portion 84 arrives the 1st position.Afterwards, accumulate in moulding material in guide portion 84 and arrive the 2nd position if also known, receive from the light income of the 2nd photo detector 74 of the light of the 2nd light-emitting component 73 and change, the moulding material accumulating in guide portion 84 arrives the 2nd position.Delivery status test section 70 is made up of the 1st light-emitting component the 71, the 1st photo detector the 72, the 2nd light-emitting component 73 and the 2nd photo detector 74.The testing result of delivery status test section 70, is supplied to controller 40.
Using accumulating in moment t1 that moulding material in guide portion 84 arrives the 1st position, (1/ Δ t) calculates as representing the value of accumulating speed of the moulding material in guide portion 84 controller 40 with the inverse of time difference Δ t (Δ t=t2-t1) of moment t2 that arrives the 2nd position.The timer that time difference Δ t has with controller 40 etc. is measured.Time difference Δ t and injection (mo(u)lding) machine similarly repeatedly carry out moulding action and calculate.In addition, the action of also can repeatedly exitting replaces moulding action.In venting action, in cylinder body, do not supply with moulding material to filling molding material in die device, and moulding material is sent to the front of screw rod, and discharge moulding material from cylinder body.
Fig. 5 is the figure of an example of the rotating speed of feed screw while representing the invariablenes turning speed of screw rod and the relation of accumulating speed of moulding material.In the time obtaining being related to shown in Fig. 5, the rotating speed of feed screw 85 is configured to be greater than rated rotational frequency.
When the invariablenes turning speed of screw rod 20, the rotating speed of feed screw 85 is less, moulding material to accumulate speed less.The rotating speed r0 that speed reaches the feed screw 85 of 1 o'clock that accumulates of moulding material is equivalent to rated rotational frequency.
When the invariablenes turning speed of screw rod 20, the relation of accumulating speed of the rotating speed of feed screw 85 and moulding material represents with linear function.Therefore,, if the data of accumulating speed of the rotating speed of feed screw 85 and moulding material are at least 2 groups, can calculate rated rotational frequency r0 by extrapolation.
So, controller 40 calculates the rated rotational frequency r0 of feed screw 85.The rated rotational frequency r0 of feed screw 85 becomes 1 index while determining condition of molding, therefore can support the condition that arranges of condition of molding.
For example, the in the situation that the rotating speed of screw rod 20 being identical during with injection moulding in the time calculating rated rotational frequency r0, the rotating speed of controller 40 feed screw 85 during as injection moulding using the product (r0 × A) of the rated rotational frequency r0 of feed screw 85 and coefficient A (A < 1) and calculating.
Coefficient A is expressed as the ratio in the space in groove 26 that shaped material occupies screw rod 20, and coefficient A is less, and the ratio of moulding material that occupies above-mentioned space is less.The mode that becomes target location with the pressure rise position S2 of the moulding material for screw rod 20 is determined coefficient A, therefore can stably obtain the good products formed of quality when injection moulding.
Controller 40 can also the feed speed of Calculating material supply unit 80 consistent with the transfer rate of screw rod 20, the maximum (below, being also called " standard ratio ") of the ratio (r2/r1) of the rotating speed (r1) of screw rod 20 and the rotating speed (r2) of feed screw 85.Standard ratio can be by the rated rotational frequency r0 of feed screw 85 and the rotating speed of the screw rod 20 that uses while calculating rated rotational frequency r0 calculate.
Above-mentioned ratio (r2/r1) is standard ratio when following, by the rotation of screw rod 20, can be from moulding material supply port 14 conveyance moulding material forwards at once, and moulding material does not accumulate near moulding material supply port 14.
On the other hand, if when above-mentioned ratio (r2/r1) is above standard ratio, rotation that cannot be by screw rod 20 and from moulding material supply port 14 conveyance moulding material forwards at once.Therefore,, if repeatedly carry out moulding action, moulding material will accumulate near moulding material supply port 14.
Standard ratio also becomes 1 index while determining condition of molding.Standard ratio is different from rated rotational frequency r0, and the change of the difficult rotating speed with screw rod 20 changes, the index excellence during therefore as definite condition of molding.It is effective in the situation that the rotating speed of for example screw rod 20 of standard ratio being different during with injection moulding in the time calculating rated rotational frequency r0.
For example, the ratio of controller 40 rotating speed of screw rod 20 during as injection moulding and rotating speed of feed screw 85 using the product of standard ratio and coefficient A (A < 1) calculates.Standard ratio is multiplied by coefficient A and rated rotational frequency r0, and to be multiplied by coefficient A be the identical meaning, identical value.
The product of controller 40 storages and rated rotational frequency r0 (or standard ratio) becomes the coefficient A of condition of molding.Coefficient A for example after calculating rated rotational frequency r0, repeatedly carries out moulding action and obtains.Known rated rotational frequency r0 (or standard ratio), is therefore made as the rotating speed of screw rod 20 constantly, changes the rotating speed of feed screw 85, and can calculate accurately coefficient A in suitable scope.For example, if the rotating speed of the deviation of the quality of products formed (measuring the time) feed screw 85 hour is made as to r3, can calculates coefficient A by the formula of A=r3/r0.Coefficient A and standard ratio multiply each other, therefore in the time of design factor A, also can change the rotating speed of screw rod 20 and the rotating speed of feed screw 85 the two.The coefficient A calculating can be applicable to the condition of molding that a certain degree is general.
Controller 40 calculates rated rotational frequency r0 etc. according to the input operation that utilizes input part 45, can show result of calculation with display part 46.The calculating of rated rotational frequency r0 etc. can be carried out in the time changing condition of molding.As the change of condition of molding, for example, can enumerate change, the replacing of screw rod 20 etc. of the kind of moulding material.In addition, in present embodiment, input part 45 is arranged with 46 points of display parts, but input part 45 also can become one with display part 46, for example, can be made up of contact panel.
Above, the embodiment of injection (mo(u)lding) machine is illustrated, but the present invention is not limited to above-mentioned embodiment, can within the scope of the purport of the present invention being recorded in claim, carries out various distortion, improvement.
For example, the material supply unit of above-mentioned embodiment comprises feed screw, but also comprises that vacuum holding unloads the goods from the airplane, and this structure is not particularly limited.As long as material supply unit can change feed speed.
And the injection (mo(u)lding) machine of above-mentioned embodiment makes screw rod 20 and feed screw 85 synchronous rotaries, but also can rotate separately.For example, the time quantum dropping in guide portion 84 about moulding material, rotation zero hour of feed screw 85 also can be faster than the rotation zero hour of screw rod 20, and the rotation of feed screw 85 finish time also can be faster than the rotation finish time of screw rod 20.
And the injection (mo(u)lding) machine of above-mentioned embodiment is coaxial screw, but also can be screw rod preformed formula.In screw rod preformed formula, the moulding material of melting in plasticizing cylinder body is supplied in injection cylinder body, and ejection formation material in from injection cylinder body to die device, in screw rod preformed formula, in plasticizing cylinder body, be equipped with screw rod.
And, the value of accumulating speed that represents the moulding material of above-mentioned embodiment is to accumulate in the inverse that moulding material in guide portion 84 arrives the time difference Δ t (Δ t=t2-t1) between the moment t1 of the 1st position and the moment t2 of arrival the 2nd position (1/ Δ t), but be not limited thereto.For example, the value of accumulating speed that is expressed as shaped material also can be the moment t3 that starts moulding action under the state that does not almost remain moulding material in cylinder body 11 and the inverse that accumulates in afterwards the time difference (t4-t3) between the moment t4 of the moulding material arrival assigned position in guide portion 84.Now, can reduce the group number of light-emitting component and photo detector.
And the delivery status test section 70 of above-mentioned embodiment is made up of the group of light-emitting component and photo detector, but its formation is not particularly limited.For example, delivery status test section is made up of the rotary body being arranged in guide portion 84, also can be detected as according to the rotation mode of rotary body the state that accumulates of shaped material.For example, delivery status test section comprises the motor that makes rotary body rotation and the torque sensor that detects the rotating torques of motor, also can be detected as according to the variation of the rotating torques of motor the state that accumulates of shaped material.And delivery status test section comprises the motor that makes rotary body rotation and the speed probe that detects the rotating speed of motor, also can detect according to the variation of the rotating speed of motor the state that accumulates of moulding material.And delivery status test section also can comprise the turn-sensitive device to detecting by the rotation that contacts the rotary body rotating in guide portion 84 with the moulding material dropping.If rotary body is embedded in the moulding material lodging in guide portion 84, rotary body does not rotate.
And the delivery status test section 70 of above-mentioned embodiment detects the state that accumulates of the moulding material in guide portion 84, but also can detect the state that accumulates of the moulding material in cylinder body 11.In either case, as long as can be detected as near the state that accumulates of the moulding material of shaped material supply port 14, can detect the delivery status of the moulding material being occurred by screw rod 20.
And, the feed speed of controller 40 Calculating material supply units 80 of above-mentioned embodiment and the transfer rate of screw rod 20 consistent, with the maximum feed speed of material supply unit 80 corresponding to the rotating speed of screw rod 20 (particularly, the maximum (top) speed of the feed screw 85 corresponding with the rotating speed of screw rod 20), but the present invention is not limited thereto.Controller 40 also can the feed speed of Calculating material supply unit 80 and the transfer rate of screw rod 20 consistent, with the minimum speed (hereinafter referred to as " rated rotational frequency of screw rod ") of screw rod 20 corresponding to the feed speed (being particularly the rotating speed of feed screw 85) of material supply unit 80.Now, for example, under the condition of the invariablenes turning speed of feed screw 85, obtain the relation of accumulating speed of rotating speed and the moulding material of screw rod 20, the rated rotational frequency of hence one can see that screw rod 20.When while calculating this rated rotational frequency, the rotating speed of feed screw 85 is identical during with injection moulding, the rotating speed of controller 40 screw rod 20 during as injection moulding using the product of the rated rotational frequency of screw rod 20 and coefficient B (B > 1) calculates.Coefficient B is repeatedly carried out moulding action and is obtained.In the time of design factor B, the rotating speed of feed screw 85 can be made as to the constant rotating speed that changes screw rod 20.Coefficient B is the inverse (B=1/A) of coefficient A.Controller 40 packing coefficient B.
Claims (5)
1. an injection (mo(u)lding) machine, wherein, possesses:
Cylinder body, has moulding material supply port at rear portion;
Material supply unit, supplies with moulding material to described moulding material supply port;
Screw rod, by transferring described moulding material to be sent to front in described cylinder body inward turning;
Delivery status test section, the delivery status of the described moulding material of detection based on this screw rod; And
Set supporting device, supports the setting of condition of molding,
This set supporting device is according to the testing result of described delivery status test section, calculate the feed speed of described material supply unit and the transfer rate of described screw rod consistent, with the maximum feed speed of described material supply unit corresponding to the rotating speed of described screw rod or with the minimum speed of described screw rod corresponding to the feed speed of described material supply unit.
2. injection (mo(u)lding) machine according to claim 1, wherein,
Described material supply unit comprises and holds the feeding cylinder body of described moulding material and by this feeding cylinder body inward turning then supply with the feed screw of described moulding material to described moulding material supply port,
Described set supporting device is according to the testing result of described delivery status test section, calculate the feed speed of described material supply unit and the transfer rate of described screw rod consistent, with the maximum (top) speed of described feed screw corresponding to the rotating speed of described screw rod or with the minimum speed of described screw rod corresponding to the rotating speed of described feed screw.
3. injection (mo(u)lding) machine according to claim 2, wherein,
Described set supporting device is according to the testing result of described delivery status test section, calculate the feed speed of described material supply unit and the transfer rate of described screw rod consistent, the maximum of the ratio r 2/r1 of the rotating speed r1 of described screw rod and the rotating speed r2 of described feed screw.
4. according to the injection (mo(u)lding) machine described in any one in claim 1～3, wherein,
The storage of described set supporting device and the product of the value that calculates become the coefficient of condition of molding.
5. support the set supporting device of the setting of injection (mo(u)lding) machine for one kind, described injection (mo(u)lding) machine possesses and has the cylinder body of moulding material supply port at rear portion, to described moulding material supply port supply with the material supply unit of moulding material, by being sent to the screw rod in front in described cylinder body inward turning then by described moulding material and detecting the delivery status test section of the delivery status of the described moulding material based on this screw rod
The set supporting device of described injection (mo(u)lding) machine is according to the testing result of described delivery status test section, calculate the feed speed of described material supply unit and the transfer rate of described screw rod consistent, with the maximum feed speed of described material supply unit corresponding to the rotating speed of described screw rod or with the minimum speed of described screw rod corresponding to the feed speed of described material supply unit.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2013-110930 | 2013-05-27 | ||
| JP2013110930A JP6058468B2 (en) | 2013-05-27 | 2013-05-27 | Injection molding machine and setting support device for injection molding machine |
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| CN104175508A true CN104175508A (en) | 2014-12-03 |
| CN104175508B CN104175508B (en) | 2017-08-08 |
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| Country | Link |
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| JP (1) | JP6058468B2 (en) |
| CN (1) | CN104175508B (en) |
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|---|---|---|---|---|
| CN112440465A (en) * | 2019-08-30 | 2021-03-05 | 精工爱普生株式会社 | Three-dimensional molding device and injection molding device |
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| JP6058468B2 (en) | 2013-05-27 | 2017-01-11 | 住友重機械工業株式会社 | Injection molding machine and setting support device for injection molding machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3913796A (en) * | 1972-11-06 | 1975-10-21 | Nissei Plastics Ind Co | Vent-type injection molding machine |
| JPH0857901A (en) * | 1994-08-22 | 1996-03-05 | Meiki Co Ltd | Injection molding machine capable of automatically setting material feed amount and its method |
| CN102962971A (en) * | 2011-08-31 | 2013-03-13 | 住友重机械工业株式会社 | An injection moulding machine and a setting support device of the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2663216B2 (en) * | 1991-04-11 | 1997-10-15 | 株式会社日本製鋼所 | Material supply control method and apparatus in injection molding machine |
| JP2906033B2 (en) * | 1996-02-22 | 1999-06-14 | 株式会社名機製作所 | Injection molding machine capable of automatically setting raw material supply amount and method therefor |
| JP2004351661A (en) | 2003-05-27 | 2004-12-16 | Toshiba Mach Co Ltd | Injection molding machine and control method therefor |
| JP5990895B2 (en) | 2011-11-24 | 2016-09-14 | 日産自動車株式会社 | Rotor and manufacturing method thereof |
| JP6058468B2 (en) | 2013-05-27 | 2017-01-11 | 住友重機械工業株式会社 | Injection molding machine and setting support device for injection molding machine |
-
2013
- 2013-05-27 JP JP2013110930A patent/JP6058468B2/en active Active
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- 2014-05-21 DE DE102014107177.8A patent/DE102014107177B4/en active Active
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3913796A (en) * | 1972-11-06 | 1975-10-21 | Nissei Plastics Ind Co | Vent-type injection molding machine |
| JPH0857901A (en) * | 1994-08-22 | 1996-03-05 | Meiki Co Ltd | Injection molding machine capable of automatically setting material feed amount and its method |
| CN102962971A (en) * | 2011-08-31 | 2013-03-13 | 住友重机械工业株式会社 | An injection moulding machine and a setting support device of the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112440465A (en) * | 2019-08-30 | 2021-03-05 | 精工爱普生株式会社 | Three-dimensional molding device and injection molding device |
| US11602880B2 (en) | 2019-08-30 | 2023-03-14 | Seiko Epson Corporation | Three-dimensional shaping device and injection molding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104175508B (en) | 2017-08-08 |
| DE102014107177B4 (en) | 2020-06-04 |
| DE102014107177A1 (en) | 2014-11-27 |
| JP6058468B2 (en) | 2017-01-11 |
| JP2014226904A (en) | 2014-12-08 |
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