CN212168017U

CN212168017U - Glue gun

Info

Publication number: CN212168017U
Application number: CN201922428499.7U
Authority: CN
Inventors: 王宇豪; 屈钰钦; 付长生; 胥林波; 廖爽智
Original assignee: Chongqing Hongguang Mechanical & Electrical Engineering Co ltd
Current assignee: Chongqing Hongguang Electromechanical Equipment Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-12-18
Anticipated expiration: 2029-12-27

Abstract

A glue gun comprises a shell, a thimble, a gun head, a nozzle and a motor which is arranged inside the shell and is connected with the outside through a lead; the output end of the motor is fixedly connected with a straight tooth, one end of the gun head is fixed with the shell through a switching bracket, and the other end of the gun head is fixedly connected with the nozzle; a containing cavity communicated with the outside is arranged in the gun head, and a packing sealing ring is fixed at one end of the gun head connected with the shell; the ejector pin rod body is provided with a groove matched with the straight teeth, the ejector pin needle head is matched with one end port of the containing cavity close to the nozzle, and the other end of the ejector pin needle head sequentially penetrates through the packing sealing ring and the switching support to extend into the shell and is connected with the motor through the ejector pin rod body. The utility model has the advantages that: the output that can be even, equivalent, stable is glued, and feed amount control is accurate, and manual electronic dual-purpose, can carry out work under the circumstances that does not have the electricity, has guaranteed the engineering progress.

Description

Glue gun

Technical Field

The utility model relates to a rubber coating device field, concretely relates to glue rifle.

Background

In modern product production processes, the use of various glues, such as structural glues for joining, sealing glues for sealing, vibration isolation glues for vibration isolation, is becoming more and more common. The glue gun is a tool for applying glue (or extruding glue), can be possibly used in places needing glue application, and is widely applied to industries such as architectural decoration, electronic appliances, automobiles and automobile parts, ships, containers and the like.

For the floor front beam needing simple straight line gluing, the current production line mostly adopts manual gluing in consideration of various aspects such as stations, cost, beats and the like. The manual gluing is that a gluing gun is manually held, the operation is carried out according to the track of the process requirement, the defects that the gluing speed is low, the glue output amount is difficult to realize accurate control exist, the problems of glue overflow, glue falling and the like caused by uneven gluing amount often occur, the precision of the gluing position is very low, a special gluing groove is required to be added to a product for guiding the gluing position often, and the difficulty of product design, the product cost and the labor cost are increased.

For complex gluing situations, a commonly used gluing scheme is robotic gluing. The robot gluing means that a special gluing station is arranged, a gluing process is realized by a gluing gun held by a robot, the main defects are that the equipment occupies a large area, the equipment cost is high, besides a robot and a control system, the cost of a gluing pump and a servo control system matched with the robot and the control system is also high, the cost of a single gluing robot unit is at least over 300 ten thousand according to the number of the robots and the gluing pumps, the number of the robots and the gluing pumps is difficult to directly increase, the beat lifting space is limited, and the production beat lifting difficulty is high; in addition, when the robot is used for gluing, manual operation cannot be arranged on the station, and the station can only be used as a special gluing station, so that the station utilization rate is low.

Thus, there is a need for a device that addresses the above-identified problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a glue gun, its output glue that can be even, equivalent, stable, feed amount control is accurate.

The utility model aims at realizing the glue gun by the technical proposal, which comprises a shell, a thimble, a gun head, a nozzle and a motor which is arranged inside the shell and is connected with the outside by a lead; the output end of the motor is fixedly connected with a straight tooth, one end of the gun head is fixed with the shell through a switching bracket, and the other end of the gun head is fixedly connected with the nozzle; a containing cavity communicated with the outside is arranged in the gun head, and a packing sealing ring is fixed at one end of the gun head connected with the shell; the ejector pin rod body is provided with a groove matched with the straight teeth, the ejector pin needle head is matched with one end port of the containing cavity close to the nozzle, and the other end of the ejector pin needle head sequentially penetrates through the packing sealing ring and the switching support to extend into the shell and is connected with the motor through the ejector pin rod body.

When the glue gun is used, a containing cavity which is directly communicated with high-pressure equipment or a glue pump filled with glue outside is arranged in the gun head; the external controller is connected with the motor to control the number of turns of the motor, the motor rotates to drive the straight teeth to rotate, the ejector pin is driven to stretch back and forth under the action of the groove matched with the straight teeth on the ejector pin rod body, and the ejector pin needle head is matched with the port at one end, close to the nozzle, in the containing cavity, and can gradually plug the port of the nozzle when stretching to one side of the nozzle, so that the glue yield is reduced, and otherwise, the glue yield is increased; the motor is controlled by the external controller, so that the overall structure ensures the accuracy of uniform, equivalent and stable glue output and feed amount control.

Due to the adoption of the technical scheme, the utility model discloses following advantage has: the output that can be even, equivalent, stable is glued, and feed amount control is accurate, and manual electronic dual-purpose, can carry out work under the circumstances that does not have the electricity, has guaranteed the engineering progress.

Drawings

Fig. 1 is a schematic structural view of the glue gun of the present invention.

Fig. 2 is a schematic structural view of another viewing angle of the glue gun of the present invention.

Fig. 3 is a schematic cross-sectional view taken along line a-a in fig. 2.

Fig. 4 is a schematic view of the internal structure of the middle glue gun casing of the present invention.

Fig. 5 is another schematic diagram of the internal structure of the middle glue gun casing of the present invention.

Fig. 6 is a schematic structural diagram of the lance head of the present invention.

Fig. 7 is another schematic structural diagram of the lance head of the present invention.

Fig. 8 is a schematic view of the structure at B-B in fig. 7.

In the figure: 1. a housing; 2. a thimble; 3. a gun head; 4. a nozzle; 5. a motor; 6. straight teeth; 7. a transfer bracket; 8. an accommodating chamber; 9. a packing seal ring; 10. a groove; 11. a motor accommodating part; 12. a hand-held portion; 13. an adapter plate; 14. a support; 15. a fixed cover; 16. a spring; 17. a spring sleeve; 18. adjusting the nut; 19. a linkage transmission rod; 20. a nut; 21. locking the nut; 22. a trigger frame; 23. a trigger; 24. a trigger sheet metal part; 25. clamping a plane; 26. reinforcing ribs; 27. longitudinal reinforcing ribs; 28. transverse reinforcing ribs; 29. a ring protrusion; 30. a buckle part; an L-shaped connecting rod; 32. a sensor; 33. an extension portion; 34. a bearing; 35. locking a ring; 36. a metal ring; 37. a power source; 38. an opening window; 39. a snap-fit cover; 40. a glue inlet; 41. a seal ring accommodating portion; 42. and (4) clamping the ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1 to 8, a glue gun comprises a housing 1, a thimble 2, a gun head 3, a nozzle 4 and a motor 5 which is arranged in the housing 1 and connected with the outside through a lead; the output end of the motor 5 is fixedly connected with a straight tooth 6, one end of the gun head 3 is fixed with the shell 1 through a switching bracket 7, and the other end is fixedly connected with the nozzle 4; a containing cavity 8 communicated with the outside is arranged in the gun head 3, and a packing seal ring 9 is fixed at one end of the gun head connected with the shell 1; the rod body of the thimble 2 is provided with a groove 10 matched with the straight tooth 6, the needle head of the thimble 2 is matched with one end port of the containing cavity 8 close to the nozzle 4, and the other end of the thimble sequentially passes through the packing seal ring 9 and the switching bracket 7 to extend into the shell 1 and is connected with the motor 5 through the rod body of the thimble 2.

When the glue gun of the utility model is used, a holding cavity 8 which is directly communicated with a high-pressure device or a glue pump filled with glue outside is arranged in the gun head 3; an external controller is connected with a motor 5 to control the number of turns of the motor 5, the motor 5 rotates to drive a straight tooth 6 to rotate, a rod body of a thimble 2 is provided with a groove 10 matched with the straight tooth 6 to drive the thimble 2 to stretch back and forth, and because a needle head of the thimble 2 is matched with a port at one end, close to a nozzle 4, in an accommodating cavity 8, the needle head of the thimble 2 can gradually plug the port of the nozzle 4 when extending to one side of the nozzle 4, so that the glue yield is reduced, and otherwise, the glue yield is increased; the motor 5 is controlled by an external controller, so that the overall structure ensures the accuracy of uniform, equivalent and stable glue output and feed amount control.

Further, as shown in fig. 1 and 3, the housing 1 includes a motor housing portion 11 provided at a front end and a hand-held portion 12 provided at a rear end; the motor accommodating part 11 is matched with the motor 5 in shape, the top of the motor accommodating part is provided with an adapter plate 13, a support 14 for accommodating the straight teeth 6 is fixedly connected to the adapter plate 13, and one end of the support 14 is fixedly connected with the adapter bracket 7; the top of the support 14 is provided with a fixed cover 15 matched with the top end of the straight teeth 6.

Further, as shown in fig. 3, the needle of the thimble 2 is matched with the end opening of the containing cavity 8 near the nozzle 4, specifically, the matching refers to mechanical sealing, and the outlet of the containing cavity 8 is pressed against the hard alloy thimble 2 to be deformed and sealed. The gun head 3 is internally provided with an accommodating cavity 8 communicated with the outside, and the accommodating cavity is specifically communicated through a glue inlet 40 which is directly formed.

Further, as shown in fig. 3, 6, 7 and 8, the connection between the lance tip 3, the nozzle 4 and the adapter bracket 7 may be a snap connection which is convenient to detach, or may be an interference fit. Specifically, an accommodating cavity 8 is arranged in the gun head 3, a sealing ring accommodating part 41 is arranged at one end of the gun head connected with the switching support 7, and a limiting ring is further arranged on the outer wall of the sealing ring accommodating part 41; and one end of the gun head 3 connected with the nozzle 4 is provided with a ring clamp 42 matched with the nozzle 3.

Further, in order to better ensure smooth use, reduce friction force and prolong service life, the fixing cover 15 preferably uses a needle bearing seat.

Further, as shown in fig. 3 to 5, the adapter plate 13 is L-shaped in cross section, and on its side, the seat 14 on its upper part can be further locked by a screw, preferably a hexagon socket countersunk head screw M3 × 12; the bottom surface of which is also locked to the bottom of the seat 14 by means of a screw, preferably a slotted pan head screw M4 x 12.

Furthermore, as shown in fig. 3 to 5, the top end of the straight tooth 6 is provided with a fixing column, the fixing cover 15 is directly fixed on the support 14 through a screw, the lower end of the fixing cover is directly clamped with the top end of the straight tooth 6, and in the process that the thimble 2 is driven by the motor 5 to rotate and extend, the fixing cover 15 and the support 14 further ensure that the thimble 2 does not become poor in front-back extension stability due to too long use time.

Further, as shown in fig. 3 to 5, a power supply 37 directly connected with the motor 5 is further arranged in the motor accommodating part 11, the power supply can be a storage battery or a battery can be directly placed for use, the storage battery and the battery can both ensure convenience in the use process, inconvenience in use due to arrangement of the electric wire is avoided, and the risk of electric leakage of the electric wire is reduced.

Further, as shown in fig. 3 and 5, the shape of the hand-held portion 12 is adapted to the grip of the hand during use, so that the comfort during use is ensured, and the hand-held portion can be used by holding after a long time of work.

Further, as shown in fig. 3 to 5, a spring sleeve 17 with a spring 16 therein is fixedly connected to the other end of the support 14, and an adjusting nut 18 abutting against the spring 16 is fixedly connected to the inside of the other end of the spring sleeve 17; a connecting transmission rod 19 is further arranged in the spring sleeve 17, one end of the connecting transmission rod 19 is fixedly connected with the end of the thimble 2, and the other end of the connecting transmission rod passes through the adjusting nut 18 and is fixedly connected with a nut 20. Further, the motor 5 is provided with an upper torque limit which is smaller than the pretightening force of the spring 16, and the spring 16 is in a compressed state.

Further, as shown in fig. 3 to 5, a trigger frame 22 is fixed to the outside of the other end of the spring sleeve 17 through a lock nut 21; the trigger support 22 is connected with a trigger 23, the trigger 23 is of a bending structure, the upper end of the trigger 23 is a U-shaped part, the end part of the U-shaped part is hinged with the trigger support 22, and the other end of the trigger 23 is fixedly connected with a trigger sheet metal part 24 which is led to the outside of the shell 1 and is positioned between the motor accommodating part 11 and the handheld part 12; the connecting transmission rod 19 passes through the middle of the U-shaped piece and is limited by a nut 20.

Further, as shown in fig. 3 to 5, the spring sleeve 17 is provided with a clamping plane 25, and when the spring sleeve is mounted or dismounted, the spring sleeve is clamped by using a tool, so that the spring sleeve can be better connected with the support 14, and the convenience in use is improved.

Further, as shown in fig. 3, the trigger sheet metal part 24 is in a reverse 7 shape, the upper end of the trigger sheet metal part is fixedly connected with the trigger 23 through a screw, the back of the trigger sheet metal part is in a hollow structure, a reinforcing rib 26 is arranged in the hollow structure, the weight is reduced, the reinforcing rib 26 is arranged, the strength of the trigger sheet metal part 24 is guaranteed, and the service life of the trigger sheet metal part is prolonged. The ribs 26 may be longitudinal, transverse, or a combination of transverse and longitudinal. Specifically, as shown in the figure, the back surface of the utility model is provided with 2 longitudinal reinforcing

ribs

27 and 8 transverse reinforcing ribs 28.

Further, as shown in fig. 3, the spring sleeve 17 is provided with a ring protrusion 29 at one end connected to the trigger frame 22; the trigger frame 22 comprises a buckle part 30 and an L-shaped connecting rod 31 fixedly connected with the buckle part 30, the inner diameter of the buckle part 30 is matched with the outer diameter of the spring sleeve 17 and is locked by a locking nut 21, and the L-shaped connecting rod 31 is hinged at the end part of the U-shaped part by a small screw and a small nut.

Further, as shown in fig. 1 to 5, a sensor 32 is also fixed on the nozzle 4, the lance tip 3 or the accommodating cavity 8, and both the sensor 32 and the motor 5 are electrically or wirelessly connected with the PLC. The sensor 32 is an XY displacement sensor or a three-dimensional sensor, the motor 5 transmits related information to the PLC through the sensor 32, and the PLC controls the size of the valve port at the accommodating cavity 8 through controlling the motor 5, so that the glue outlet flow is controlled, and the glue outlet amount of the glue gun is intelligently controlled. In addition, sensor 32 among the technical scheme in this patent application can carry out the selection of glue volume to different objects when to manual operation and carry out the feature extraction to combine different environmental parameters such as temperature, humidity, adjust motor 5, and then realize the accurate control to glue volume.

Furthermore, as shown in fig. 3, one end of the thimble 2 is further provided with an extension portion 33 matching with the nozzle 4, one end of the extension portion 33 is fixedly connected with the thimble 2, and the other end is matched with the end of the nozzle 4. The extension part is adapted to the nozzle opening of the nozzle 4, the function is the same as that of the needle point of the thimble 2 and the containing cavity 8, the outlet of the nozzle 4 pushed by the hard alloy thimble 2 is deformed and sealed, the two sealing designs realize double-layer sealing of glue, and the effect is better.

Further, as shown in fig. 3 and 5, at both ends of the inside of the support 14, there are respectively fixed 1 bearing 34 through which the thimble 2 passes. The bearing 34 preferably uses a linear bearing, preferably uses a model LM-10UU or a punched outer ring needle roller bearing [ HK 0000 type ] HK0608, is convenient to use and limit, is convenient for the extension and retraction of the ejector pin 2, reduces the friction force in the front and back extension and retraction processes, and prolongs the service life of the glue gun.

Further, as shown in fig. 3 and 8, a locking ring 35 for fixing the packing seal ring 9 is further provided in the gun head 3 near the housing 1, and the locking ring 35 can further lock the packing seal ring 9, so as to ensure that the glue does not flow into the housing 1 from the accommodating cavity 8.

Further, as shown in fig. 3 and 8, in the gun head 3, metal rings 36 are further arranged at two ends of the packing seal ring 9, and the packing seal ring 9 can be better locked and molded by using the metal rings 36, so that the stability of the packing seal ring 9 in the using process is ensured. Preferably, the metal ring 36 is a copper ring, which can be deformed by extrusion in use, so that the surface and the joint surface of the gun head are tightly attached without any gap, thereby obtaining better sealing effect.

Furthermore, on switching support 7, be equipped with the opening with locking ring 35 corresponding position, the use of convenient to use instrument carries out better locking to locking ring 35, has guaranteed the sealed effect of packing sealing washer 9.

Further, as shown in fig. 1, the whole housing 1 is gun-shaped, and the engaging members are disposed inside the housing and matched with the adapting bracket 7, the support 14 and the motor 5, and the engaging members are matched with the components to ensure the stability of the whole housing. The engaging member may be a protruding member or a recessed member, which is configured to fit the shape of the adaptor bracket 7, the support 14, and the motor 5.

Further, as shown in fig. 1 and 3, an opening window 38 is provided in the housing 1 at a position corresponding to the spring sleeve 17, the adjusting nut 18, and the interlock transmission rod 19. The opening window 38 is directly formed on the housing 1, so that the operation state of the inside thereof can be observed conveniently, and maintenance and observation are facilitated. For aesthetic reasons, it may also be provided with a snap-on cover 39, which is adapted thereto and which also has the effect of preventing the ingress of external contaminants.

Further, as shown in fig. 3, the engaging piece may be welded or adhered at a later stage, or may be formed integrally. The shell 1 is fastened by two half shells which are matched with each other through bolt holes arranged on the two half shells, and is convenient to disassemble, repair or maintain.

Further, the straight tooth 6 adopts M1X12, namely a module 1 and a gear with 12 teeth; the ends of the U-shaped pieces are hinged with the trigger frame 22 through cross-recessed pan head screws M5X 25; nut 18 uses a knurled thin nut M8; the locking nut 21 is KMKMKM 06; the spring 16 preferably uses a cylindrical helical compression spring (two-end coil tightening type) GB _ T2089-2009 _2 X18X35X6.5; the motor 5 is preferably a dc servomotor.

Glue the rifle in this patent, when using, manual gluey rifle mode, motor mode all can be the exclusive operation respectively, and can provide relevant data support for the motor mode under the manual mode state. Specifically, in the manual glue gun mode, the glue discharging amount is controlled by grasping the strength of a trigger; a motor mode: the switch of the glue gun is controlled through the trigger position, the speed is further calculated by the motor 5 through the sensor and fed back to the PLC, and the glue outlet flow is controlled by controlling the size of the valve port so as to realize intelligent control of the glue outlet amount of the glue gun.

Claims

1. A glue gun comprises a shell (1), a thimble (2), a gun head (3), a nozzle (4) and a motor (5) which is arranged in the shell (1) and is connected with the outside through a lead; the method is characterized in that: the output end of the motor (5) is fixedly connected with a straight tooth (6), one end of the gun head (3) is fixed with the shell (1) through a switching bracket (7), and the other end of the gun head is fixedly connected with the nozzle (4); a containing cavity (8) communicated with the outside is arranged in the gun head (3), and a packing sealing ring (9) is fixed at one end of the gun head connected with the shell (1); a groove (10) matched with the straight teeth (6) is formed in the rod body of the ejector pin (2), the needle head of the ejector pin (2) is matched with the end opening, close to the nozzle (4), in the containing cavity (8), the other end of the ejector pin sequentially penetrates through the packing sealing ring (9) and the switching support (7) to stretch into the shell (1), and the rod body of the ejector pin (2) is connected with the motor (5).

2. The glue gun of claim 1, wherein: the shell (1) comprises a motor accommodating part (11) arranged at the front end and a handheld part (12) arranged at the rear end; the motor accommodating part (11) is matched with the motor (5) in shape, the top of the motor accommodating part is provided with an adapter plate (13), a support (14) for accommodating the straight teeth (6) is fixedly connected onto the adapter plate (13), and one end of the support (14) is fixedly connected with the adapter bracket (7); the top of the support (14) is provided with a fixed cover (15) matched with the top end of the straight tooth (6).

3. The glue gun of claim 2, wherein: the other end of the support (14) is fixedly connected with a spring sleeve (17) which is internally provided with a spring (16), and the inner part of the other end of the spring sleeve (17) is fixedly connected with an adjusting nut (18) which is abutted against the spring (16); a connecting transmission rod (19) is further arranged in the spring sleeve (17), one end of the connecting transmission rod (19) is fixedly connected with the end of the thimble (2), and the other end of the connecting transmission rod passes through the adjusting nut (18) and is fixedly connected with a nut (20).

4. The glue gun of claim 3, wherein: a trigger bracket (22) is fixed outside the other end of the spring sleeve (17) through a lock nut (21); the trigger support (22) is connected with a trigger (23), the trigger (23) is of a bending structure, one end of the trigger (23) is a U-shaped piece, the end part of the U-shaped piece is hinged with the trigger support (22), and the other end of the trigger (23) is fixedly connected with a trigger sheet metal piece (24) which is led to the outside of the shell (1) and is positioned between the motor accommodating part (11) and the handheld part (12); the connecting transmission rod (19) penetrates through the middle of the U-shaped part and is limited by a nut (20).

5. The glue gun of claim 4, wherein: one end of the spring sleeve (17) connected with the trigger bracket (22) is provided with a ring bulge (29); the trigger support (22) comprises a buckling ring part (30) and an L-shaped connecting rod (31) fixedly connected with the buckling ring part (30), the inner diameter of the buckling ring part (30) is matched with the outer diameter of the spring sleeve (17) and is locked through a locking nut (21), and the L-shaped connecting rod (31) is hinged to the end part of the U-shaped part through a small screw and a small nut.

6. Glue gun as claimed in any one of claims 1 to 5, characterized in that: a sensor (32) is also fixed on the nozzle (4), the gun head (3) or the containing cavity (8), and the sensor (32) and the motor (5) are electrically or wirelessly connected with the PLC.

7. Glue gun as claimed in any one of claims 1 to 5, characterized in that: one end of the thimble (2) is also provided with an extension part (33) matched with the nozzle (4), one end of the extension part (33) is fixedly connected with the thimble (2), and the other end is matched with the end of the nozzle (4).

8. The glue gun of claim 6, wherein: one end of the thimble (2) is also provided with an extension part (33) matched with the nozzle (4), one end of the extension part (33) is fixedly connected with the thimble (2), and the other end is matched with the end of the nozzle (4).

9. The glue gun of claim 1, 2, 3, 4, 5, or 8, wherein: two ends in the support (14) are respectively and fixedly provided with a bearing (34) through which the 1 thimble (2) rod passes.