CN111570206A - Antidrip nozzle and hot melt rifle - Google Patents
Antidrip nozzle and hot melt rifle Download PDFInfo
- Publication number
- CN111570206A CN111570206A CN202010567708.0A CN202010567708A CN111570206A CN 111570206 A CN111570206 A CN 111570206A CN 202010567708 A CN202010567708 A CN 202010567708A CN 111570206 A CN111570206 A CN 111570206A
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- Prior art keywords
- glue
- pushing
- heating head
- piece
- glue stick
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 239000012943 hotmelt Substances 0.000 title description 3
- 239000003292 glue Substances 0.000 claims abstract description 83
- 238000010438 heat treatment Methods 0.000 claims abstract description 80
- 239000004836 Glue Stick Substances 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 238000002844 melting Methods 0.000 claims description 19
- 230000008018 melting Effects 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 17
- 239000007787 solid Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 description 11
- 238000007599 discharging Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005381 potential energy Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009699 differential effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material
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- Coating Apparatus (AREA)
Abstract
The invention discloses an anti-drip nozzle.A heating head is used for heating the front part of a glue stick to melt a solid glue stick, a pushing piece is contacted with the rear part of the glue stick and is used for pushing the glue stick to the heating head, and a new material is supplemented in time after the melted liquid glue stick flows out; the sealing element is sleeved on the peripheries of the heating head, the pushing element and the rubber rod and used for keeping air seal, and the pushing element can move relative to the sealing element, so that the space of a rubber liquid cavity formed by the pushing element and the sealing element is changed, and the air pressure is adjusted; the rebound part can enable the pushing part to move, so that the space of the glue cavity is increased, the internal air pressure is reduced, and the external air pressure is greater than the internal air pressure. When the glue needs to be discharged, pressure is applied to the pushing piece to push the glue stick to move towards the direction close to the heating head, and the glue stick is heated to form liquid to be discharged; when glue does not need to be discharged, the pushing piece is reversely moved by the resilience piece, the inner cavity of the glue liquid cavity is enlarged, the air pressure is reduced, and the glue liquid flows back under the action of pressure intensity to enter the glue outlet of the heating head.
Description
Technical Field
The invention relates to the technical field of hot melting tools, in particular to a drip-proof nozzle. In addition, the invention also relates to a hot melting gun.
Background
Most of hot melting guns or similar products are provided with a heating and melting device and a hot melting head with an adhesive outlet, and the hot melting gun melts and converts a solid adhesive rod into a liquid state and then flows out for adhering objects.
When the hot melting head is used, the switch is pressed to push the solid glue stick forward for a certain distance, and after the switch is reset and is not used for a while, the glue in the molten state in the hot melting head still flows out from the glue outlet, so that not only is the body, clothes or other articles easily polluted, but also accidental injuries such as burns to the human body are possibly caused.
For those skilled in the art, how to prevent the glue solution from flowing out continuously after stopping glue flowing out is a technical problem to be solved at present.
Disclosure of Invention
The invention provides a drip-proof nozzle, which sucks glue liquid back when not in use and reduces the harm caused by outflow of the glue liquid, and the specific scheme is as follows:
a drip resistant nozzle comprising:
the heating head is used for heating the front part of the glue stick;
the pushing piece is contacted with the rear part of the rubber rod and used for pushing the rubber rod to the heating head;
the sealing element is sleeved on the peripheries of the heating head, the pushing element and the rubber rod and used for keeping air seal; the pusher is movable relative to the seal;
and the rebound piece can enable the pushing piece to move, so that the space of a glue solution cavity formed by the pushing piece and the sealing piece is enlarged to suck back glue solution.
Optionally, the resilient member is a coil spring and is disposed between the heating head and the glue stick; when glue is discharged, the glue stick drives the rebound piece to stretch or compress to generate rebound force.
Optionally, the resilient member is annular, and a resilient sheet contacting with the glue stick is disposed on the resilient member, and the glue stick presses the resilient sheet to generate elastic deformation to generate elastic force during glue discharging.
Optionally, the resilient member is a spring, and is disposed between the sealing member and the pushing member, and the resilient member is capable of applying a reverse thrust to the pushing member to reduce the internal pressure of the glue chamber.
Optionally, the resilient member includes a fixed magnetic member and a movable magnetic member, the fixed magnetic member is fixed on the heating head, and a through hole is formed in the middle of the fixed magnetic member;
the movable magnetic part comprises a magnetic part and an inserting part, the magnetic part is positioned at the front side of the fixed magnetic part, and the magnetic part and the fixed magnetic part are attracted by magnetic force; the length of cartridge section is greater than the thickness of piece is inhaled to fixed magnetism to can insert the through-hole that the piece middle part set up is inhaled to fixed magnetism, glue the stick and promote the end of cartridge section.
Optionally, a diversion trench is arranged on the peripheral side wall of the magnetic suction section.
Optionally, the sealing element comprises a sealing plug and a hoop housing, the sealing plug is cylindrical and is sleeved on the peripheries of the pushing element and the rubber rod;
the hoop shell is sleeved on the peripheries of the heating head and the sealing plug.
Optionally, the hoop housing includes an upper hoop and a lower hoop formed by axially separating, and a slot obliquely arranged at the front of the upper hoop and a buckle obliquely arranged at the front of the lower hoop are mutually matched and locked.
Optionally, the heating head comprises an inner electrode, an outer electrode and a heating body, wherein the inner electrode comprises a melting conical surface and a preheating cylindrical surface; the heating body comprises a heating conical surface and a heating cylindrical surface.
The invention also provides a hot melt gun comprising the drip proof nozzle.
The invention provides a drip-proof nozzle.A heating head is used for heating the front part of a glue stick to melt a solid glue stick, a pushing piece is contacted with the rear part of the glue stick and is used for pushing the glue stick to the heating head, and new materials are supplemented in time after the melted liquid glue stick flows out; the sealing element is sleeved on the peripheries of the heating head, the pushing element and the rubber rod and used for keeping air seal, and the pushing element can move relative to the sealing element, so that the space of a rubber liquid cavity formed by the pushing element and the sealing element is changed, and the air pressure is adjusted; the rebound part can enable the pushing part to move, so that the space of the glue cavity is increased, the internal air pressure is reduced, and the external air pressure is greater than the internal air pressure. When the glue needs to be discharged, pressure is applied to the pushing piece to push the glue stick to move towards the direction close to the heating head, and the glue stick is heated to form liquid to be discharged; when glue does not need to be discharged, the pushing piece is reversely moved by the resilience piece, the inner cavity of the glue liquid cavity is enlarged, the air pressure is reduced, and the glue liquid flows back under the action of pressure intensity to enter the glue outlet of the heating head.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an exploded view of the components of an embodiment of the drip resistant nozzle of the present invention;
FIG. 2 is a schematic view of an assembled anti-drip nozzle according to an embodiment of the present invention;
FIG. 3A is a cross-sectional view of the first embodiment of the present invention in an initial state;
FIG. 3B is a cross-sectional view of the glue dispensing status of the first embodiment of the present invention;
FIG. 3C is a cross-sectional view of the second embodiment of the present invention in an initial state;
FIG. 3D is a cross-sectional view of a second embodiment of the present invention;
FIG. 4A is a cross-sectional view of the initial state of the third embodiment of the present invention;
FIG. 4B is a cross-sectional view of a third embodiment of the present invention;
fig. 4C is a structural view of a resilient member according to a third embodiment of the present invention;
FIG. 5A is a cross-sectional view of an initial state of a fourth embodiment of the present invention;
FIG. 5B is a cross-sectional view of a fourth embodiment of the present invention in a glue dispensing state;
FIG. 6A is a cross-sectional view of an initial state of a fifth embodiment of the present invention;
FIG. 6B is a cross-sectional view of a fifth embodiment of the present invention in a glue dispensing state;
FIG. 6C is a view showing the structure of the fixed magnetic member;
FIG. 6D is a view showing the structure of the movable magnetic member;
FIG. 7A is a schematic cross-sectional view of the sealing plug;
fig. 7B and 7C are schematic structural views of the upper and lower hoops, respectively;
fig. 8 is a sectional view of the heating tip.
The figure includes:
the heating device comprises a heating head 1, an inner electrode 11, a melting conical surface 111, a preheating cylindrical surface 112, an outer electrode 12, a heating body 13, a hot conical surface 131, a heating cylindrical surface 132, a pushing piece 2, a sealing piece 3, a sealing plug 31, a hoop shell 32, an upper hoop 321, a lower hoop 322, a rebound piece 4, an elastic sheet 401, a rebound piece 4, a fixed magnetic piece 41, a movable magnetic piece 42, a magnetic piece 421, an insertion section 422 and a diversion trench 423.
Detailed Description
The core of the invention is to provide the drip-proof nozzle, which enables the glue solution to be sucked back when not in use, and reduces the harm caused by the outflow of the glue solution.
In order to make the technical solution of the present invention better understood by those skilled in the art, the drip-proof nozzle of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is an exploded view of the components of one embodiment of the drip resistant nozzle of the present invention; FIG. 2 is an assembled overall appearance structure of an embodiment of the anti-drip nozzle of the present invention, wherein FIG. 2 does not include a pushing member; the invention provides a drip resistant nozzle comprising: the heating head 1 is used for heating the front part of the rubber rod, so that the solid rubber rod is melted into liquid rubber solution, the solid rubber rod is inserted into a feed inlet at the rear part of the heating head 1, and the melted rubber solution is discharged from a discharge outlet at the front part of the heating head.
The pushing piece 2 is contacted with the rear part of the rubber rod and is used for pushing the rubber rod to the heating head 1; when the glue solution needs to be extruded, the pushing piece 2 applies pressure to the glue rod, the glue rod is close to the heating head 1, the front part of the glue rod is molten into a liquid state after contacting with the heating head 1, and the glue solution close to the discharge port is discharged along with the continuous feeding of the glue rod.
The sealing element 3 is sleeved on the peripheries of the heating head 1, the pushing element 2 and the rubber rod and used for keeping air-tight seal, and the rubber liquid is communicated with the outside through a discharge hole of the heating head 1 and is kept air-tight seal at other positions; the pushing piece 2 can move linearly relative to the sealing piece 3, and the pushing piece 2 and the sealing piece 3 are kept in an air-tight state all the time in the moving process.
The resilient member 4 has elasticity, and can make the pushing member 2 move to the direction of keeping away from the heating head 1 and then increase the space of the glue solution chamber formed by the pushing member 2 and the sealing member 3, and the air pressure inside the glue solution chamber is reduced and is less than the external air pressure, and the glue solution is sucked back under the action of the air pressure difference.
When the glue is extruded, the pushing piece 2 is driven by external force to move, and potential energy is accumulated when the pushing piece 2 moves; when the external force is removed, the elastic potential energy is released by the rebound piece 4, the pushing piece 2 is pushed to the opposite direction, and the pushing piece 2 is far away from the heating head 1.
When extrusion is stopped, the pushing piece 2 moves towards the direction far away from the discharge hole of the heating head 1 under the action of the rebounding piece 4, so that the space of a glue solution cavity formed by the heating head 1, the sealing piece 3 and the pushing piece 2 is increased, the internal pressure is lower than the external pressure, the glue solution flows into the glue solution cavity of the heating head 1 by changing the air pressure of the glue solution cavity, no redundant glue solution flows out, the redundant glue solution can be prevented from continuously flowing out immediately after glue discharging is stopped, and bodies, clothes or other articles cannot be polluted.
On the basis of the above solution, the present invention provides a specific embodiment, as shown in fig. 1, in which the resilient member 4 is a coil spring, the coil spring is disposed between the heating head 1 and the glue stick, and the glue stick drives the resilient member 4 to stretch or compress to generate a resilient force when the glue is discharged; as shown in fig. 3A, a cross-sectional structure diagram of an initial state of the first embodiment is provided; FIG. 3B is a cross-sectional view of the glue dispensing status of the first embodiment of the present invention; in the embodiment, the rebound part 4 is directly contacted with the front end of the glue stick and directly applies acting force to the glue stick, and the rebound part can simultaneously push the glue stick and the pushing part 2 to move. In the embodiment, the glue stick extrudes the spring to shorten and accumulate potential energy when glue is discharged, and the length of the rebound piece 4 in the glue discharging state is smaller than that in the initial state. In this embodiment, the front end of the spring near the glue outlet is in contact with the inner surface of the heating head 1, and the rear end is in contact with the glue stick.
As shown in fig. 3C, a cross-sectional structure diagram of an initial state of a second embodiment of the present invention is provided; FIG. 3D is a cross-sectional view of a second embodiment of the present invention in a glue dispensing state; in the embodiment, the rebound part 4 is directly contacted with the front end of the glue stick and directly applies acting force to the glue stick, and the rebound part can simultaneously push the glue stick and the pushing part 2 to move. The glue stick pulls the spring to be extended to accumulate potential energy when glue is discharged, and the length of the rebound piece 4 in the glue discharging state is larger than that in the initial state. In this embodiment, the rear end of the spring is fixed relative to the heating head 1, and the front end is driven by the glue stick, specifically, a rod for transferring action can be provided between the glue stick and the front end of the spring, and the glue stick drives the spring to extend through the rod.
The coil spring is made of metal materials and has certain heat conductivity, the inner electrode generates heat and transmits the heat to the coil spring, and the coil spring is directly contacted with the glue stick and can accelerate the melting rate of the glue stick. The inner electrode of the heating head 1 contacting with the rubber rod is provided with a conical surface, the spiral spring is preferably conical, the diameter of the rear end of the spiral spring is large, the diameter of the front end of the spiral spring is small, and the change trend of the diameter of the inner electrode of the conical surface of the heating head 1 is consistent.
As shown in fig. 4A, a cross-sectional structure diagram of an initial state of a third embodiment of the present invention is provided; FIG. 4B is a cross-sectional view of a third embodiment of the present invention; fig. 4C is a structural view of a resilient member according to a third embodiment of the present invention; in this embodiment, the resilient member 4 is annular and substantially conical, the front end of the conical surface is provided with at least two resilient pieces 401 for contacting with the rubber rod, the resilient pieces 401 are distributed along the circumferential direction of the conical surface and are bent towards the central axis, the rubber rod presses the resilient pieces 401 to generate elastic force when the rubber is discharged, the resilient pieces 401 reversely press the rubber rod after the rubber is discharged, and the resilient pieces move reversely with the rubber rod and the pushing member 2 to generate negative pressure; in addition, as the rebound piece 4 is wrapped by the molten colloid, the elastic piece 401 also pulls the molten colloid to flow back into the heating head in the swinging process, and the function of glue dripping is prevented.
As shown in fig. 5A, a cross-sectional structure diagram of an initial state of a fourth embodiment of the present invention is provided; FIG. 5B is a cross-sectional view of a fourth embodiment of the present invention in a glue dispensing state; rebound 4 is the spring, sets up between sealing member 3 and impeller 2, and 4 one end contact sealing member 3 of rebound, and other end contact rebound 4, rebound 4 can exert reverse thrust to impeller 2, and when rebound 4 removed to the direction of keeping away from heating head 1, reduced the inside pressure in glue solution chamber, and external pressure is big, and the glue solution flows back under the pressure differential action and gets into the play jiao kou of heating head 1. The resilient member 4 in this embodiment is not in direct contact with the glue stick and is located outside the glue chamber. In the embodiment, the glue stick extrudes the spring to shorten and accumulate potential energy during glue discharging, the spring extends in length during glue returning, and the length of the rebound piece 4 in the glue discharging state is smaller than that in the initial state.
As shown in fig. 6A, a cross-sectional structure diagram of an initial state of a fifth embodiment of the present invention is provided; FIG. 6B is a cross-sectional view illustrating a glue dispensing status according to a fifth embodiment of the present invention; the resilient member 4 includes a fixed magnetic member 41 and a movable magnetic member 42, and fig. 6C is a structural diagram of the fixed magnetic member 41; FIG. 6D is a schematic view of the movable magnetic element 42; the fixed magnetic suction piece 41 is fixed on the heating head 1, and the position is kept fixed; the middle part of the fixed magnetic part 41 is provided with a through hole, and the periphery of the fixed magnetic part is contacted with the heating head 1; the glue solution flows through a through hole arranged in the middle of the fixed magnetic attraction piece 41.
The movable magnetic part 42 comprises a magnetic section 421 and an inserting section 422, the diameter of the magnetic section 421 is larger than that of the inserting section 422, the inserting section 422 can be inserted into the through hole at the center of the fixed magnetic part 41, and the magnetic section 421 cannot pass through the through hole at the center of the fixed magnetic part 41.
During assembly, the magnetic section 421 is located at the front side of the fixed magnetic part 41, the magnetic section 421 and the fixed magnetic part 41 are opposite in magnetism, and can generate magnetic force, and the magnetic section 421 and the fixed magnetic part 41 attract each other through magnetic force, so that when the magnetic section 421 and the fixed magnetic part 41 attract each other, the glue solution is blocked from flowing through. The length of cartridge section 422 is greater than the thickness of fixed magnetism piece 41 of inhaling to can insert the through-hole that fixed magnetism piece 41 middle part set up, glue stick promotion cartridge section 422's end moves to a mouthful direction of glue of play during play glue, makes magnetism piece 41 separation of inhaling with fixed magnetism of section 421, and the glue solution can normally flow out. When the glue discharging is stopped, the magnetic attraction section 421 and the fixed magnetic attraction part 41 attract each other, because the movable magnetic attraction part 42 is wrapped by the molten glue, almost no air exists in the glue cavity, and the movable magnetic attraction part 42 pushes the glue stick and the pushing part 2 to move reversely, so that instantaneous vacuum is continuously formed, negative pressure is generated, and the glue at the glue outlet flows back; the process that movable magnetism piece 42 was inhaled can drive the glue solution and remove along going out the opposite direction of gluing also, under two combined action, when the machine stop work, prevents that the glue from flowing out.
Preferably, as shown in fig. 6D, set up guiding gutter 423 on the peripheral lateral wall of section 421 is inhaled to magnetism, guiding gutter 423 along the circumference evenly distributed of section 421 is inhaled to magnetism, from a week lateral wall to the central sunken, length direction along the thickness direction of section 421 is inhaled to magnetism, plays the effect of water conservancy diversion to the glue solution when going out to glue, reduces out the gluey resistance.
On the basis of any one of the above technical solutions and their combination, the sealing element 3 in the present invention includes a sealing plug 31 and a hoop housing 32, as shown in fig. 7A, which is a schematic cross-sectional view of the sealing plug 31; the sealing plug 31 is cylindrical and is sleeved on the pushing piece 2 and the periphery of the rubber rod; the sealing plug 31 contacts with the pushing piece 2 to keep air-tight seal; the hoop casing 32 is sleeved on the peripheries of the heating head 1 and the sealing plug 31, the heating head 1 and the sealing plug 31 are respectively kept in air sealing with the hoop casing 32, only the discharge port of the heating head 1 is relatively communicated with the outside for discharging glue, and the hoop casing 32 can also play a role in heat insulation.
The hoop housing 32 includes an upper hoop 321 and a lower hoop 322 formed at intervals along the axial direction, and fig. 7B and 7C are schematic structural diagrams of the upper hoop 321 and the lower hoop 322, respectively; go up the buckle that the draw-in groove that the anterior slope of staple bolt 321 set up and the anterior slope of lower staple bolt 322 set up and cooperate the locking each other, combine fig. 2 to know, after last staple bolt 321 and the mutual joint cooperation of lower staple bolt 322, receive unable mutual separation behind the external force, consequently can avoid going up staple bolt 321 and the anterior separation that opens of lower staple bolt 322.
As shown in fig. 8, a sectional structure of the heating tip 1 is shown; the heating head 1 comprises an inner electrode 11, an outer electrode 12 and a heating body 13, wherein the inner electrode 11 and the outer electrode 12 are respectively connected to the positive electrode and the negative electrode of a power supply and used for supplying power to enable the heating body 13 to generate heat, the heat is transferred to the inner electrode 11, and the inner electrode 11 enables a rubber rod to be melted.
The inner electrode 11 comprises a melting conical surface 111 and a preheating cylindrical surface 112, the preheating cylindrical surface 112 is connected to the maximum caliber of the melting conical surface 111, when a solid glue stick is inserted into the preheating cylindrical surface 112, the glue stick is preheated and softened firstly, the glue stick is further heated and changed into liquid when moving forward and contacting the melting conical surface 111, the glue stick is softened in advance by the preheating cylindrical surface 112, and the melting rate of the glue stick is improved. The heating body 13 comprises a heating conical surface 131 and a heating cylindrical surface 132, the heating conical surface 131 is in contact with the melting conical surface 111 in a fitting manner, the heating cylindrical surface 132 is in contact with the preheating cylindrical surface 112 in a fitting manner, so that heat is conducted more quickly, and meanwhile, the heating cylindrical surface 132 arranged on the heating body 13 can improve the structural strength.
The invention also provides a hot melting gun, which comprises the anti-drip nozzle and can realize the same technical effect; for other structures of the heat melting gun, please refer to the prior art, and the present invention is not described herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A drip resistant nozzle, comprising:
the heating head (1) is used for heating the front part of the glue stick;
the pushing piece (2) is in contact with the rear part of the glue stick and used for pushing the glue stick to the heating head (1);
the sealing element (3) is sleeved on the peripheries of the heating head (1), the pushing element (2) and the rubber rod and used for keeping air sealing; the pusher (2) being movable relative to the seal (3);
and the rebound piece (4) can enable the pushing piece (2) to move, so that the space of a glue solution cavity formed by the pushing piece (2) and the sealing piece (3) is enlarged, and glue solution is sucked back.
2. Drip-proof nozzle according to claim 1, characterized in that the resilient member (4) is a helical spring, arranged between the heating head (1) and the glue stick; when the glue is discharged, the glue stick drives the rebound piece (4) to stretch or compress to generate rebound force.
3. The anti-drip nozzle according to claim 1, wherein said resilient member (4) is ring-shaped, and has a resilient piece (401) thereon for contacting with the glue stick, and the glue stick presses said resilient piece (401) to elastically deform to generate elastic force when the glue is dispensed.
4. Drip-proof nozzle according to claim 1, characterized in that the resilient member (4) is a spring, arranged between the sealing member (3) and the pusher (2), the resilient member (4) being able to exert a counter-thrust on the pusher (2) to reduce the internal pressure of the glue chamber.
5. The drip-proof nozzle according to claim 1, wherein the resilient member (4) comprises a fixed magnetic member (41) and a movable magnetic member (42), the fixed magnetic member (41) is fixed on the heating head (1), and a through hole is formed in the middle of the fixed magnetic member (41);
the movable magnetic part (42) comprises a magnetic section (421) and an inserting section (422), the magnetic section (421) is positioned at the front side of the fixed magnetic part (41), and the magnetic section and the fixed magnetic part are attracted with each other through magnetic force; the length of the insertion section (422) is larger than the thickness of the fixed magnetic part (41), the fixed magnetic part can be inserted into a through hole formed in the middle of the fixed magnetic part (41), and the rubber rod pushes the tail end of the insertion section (422).
6. Drip-proof nozzle according to claim 5, characterized in that the magnetically attracted segment (421) is provided with flow guiding grooves (423) on its peripheral side wall.
7. Drip-proof nozzle according to any of claims 2 to 6, characterized in that the sealing element (3) comprises a sealing plug (31) and a hoop housing (32), the sealing plug (31) being cylindrical and surrounding the pusher (2) and the glue stick;
the hoop shell (32) is sleeved on the peripheries of the heating head (1) and the sealing plug (31).
8. The drip resistant nozzle of claim 7 wherein said hoop housing (32) comprises an upper hoop (321) and a lower hoop (322) axially spaced apart from each other, and wherein a front portion of said upper hoop (321) has an inclined snap groove for interlocking with a front portion of said lower hoop (322).
9. Drip-proof nozzle according to claim 7, characterized in that the heating head (1) comprises an inner electrode (11), an outer electrode (12) and a heating body (13), the inner electrode (11) comprising a melting conical surface (111) and a preheating cylindrical surface (112); the heating body (13) comprises a heating conical surface (131) and a heating cylindrical surface (132).
10. A heat stake gun comprising the drip resistant nozzle of any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010567708.0A CN111570206A (en) | 2020-06-19 | 2020-06-19 | Antidrip nozzle and hot melt rifle |
| PCT/CN2020/109093 WO2021253601A1 (en) | 2020-06-19 | 2020-08-14 | Drip-proof nozzle and hot melt gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010567708.0A CN111570206A (en) | 2020-06-19 | 2020-06-19 | Antidrip nozzle and hot melt rifle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111570206A true CN111570206A (en) | 2020-08-25 |
Family
ID=72110030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010567708.0A Pending CN111570206A (en) | 2020-06-19 | 2020-06-19 | Antidrip nozzle and hot melt rifle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111570206A (en) |
| WO (1) | WO2021253601A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116532318A (en) * | 2023-07-04 | 2023-08-04 | 江苏常丰精密科技有限公司 | Hole plugging mechanism for bottom of power battery shell |
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| CN116532318A (en) * | 2023-07-04 | 2023-08-04 | 江苏常丰精密科技有限公司 | Hole plugging mechanism for bottom of power battery shell |
| CN116532318B (en) * | 2023-07-04 | 2023-08-29 | 江苏常丰精密科技有限公司 | Hole plugging mechanism for bottom of power battery shell |
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| Publication number | Publication date |
|---|---|
| WO2021253601A1 (en) | 2021-12-23 |
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