Glue spraying gun for automobile injection molding part

Abstract

The utility model provides an automobile injection molding part glue gun which comprises an installation body and a spray gun body, the installation body comprises an installation base and a first connector, the installation base is provided with a glue storage cavity and a connecting pipe, a movable block and a spring are arranged in the first connector, the movable block is provided with a via hole and a glue inlet hole, and the spray gun body is arranged in the through hole. The spray gun body comprises a second connector, a nozzle and a glue guide pipe are arranged on the second connector, and when the second connector is installed on the first connector, the glue guide pipe stretches into the first connector to abut against the movable block and pushes the end, provided with the glue inlet hole, of the movable block to stretch into the glue storage cavity. And when the second connector is detached from the first connector, the spring drives the end, with the glue inlet hole, of the movable block to move out of the glue storage cavity, so that the glue inlet hole is not communicated with the glue storage cavity. According to the glue spraying device, the technical problem that an existing glue spraying device is inconvenient to clean and maintain is solved, and the technical effects that solidified glue attached to the nozzle can be conveniently cleaned, and disassembly and assembly are convenient are achieved.

Description

Technical Field

[0001] This utility model relates to the field of automotive interior processing technology, and in particular to a glue gun for automotive injection molded parts. Background Technology

[0002] Automotive interiors mainly refer to automotive products used for interior modifications, such as car seat cushions, car floor mats, and car trunk mats, which serve the functions of heat insulation, aesthetics, and practicality. During the manufacturing process of automotive interiors, specific materials of leather or fabric need to be laminated onto the molded injection parts to form the final product. During the lamination process, adhesive needs to be sprayed onto the surface of the injection molded parts.

[0003] Chinese utility model patent CN217289065U discloses a glue spraying device for automotive interior trim, including a support platform and a U-shaped mounting bracket. The mounting bracket has a mounting through-hole parallel to the width direction of the support platform in its center. The mounting bracket is hollow, and its lower end is connected to the support platform. A movable platform along the length of the support platform is provided between the mounting bracket and the support platform. Several fixed components are mounted on the movable platform. A glue gun is mounted above the movable platform. A primary drive component for moving the glue gun along the width direction of the support platform is mounted on the mounting bracket. Several suction holes are provided on the inner side of the mounting bracket, and a filter box communicating with the inner cavity of the mounting bracket is mounted on the outer side of the mounting bracket. An exhaust fan is mounted on the outer side of the filter box. This automotive interior trim glue spraying device can generate multiple glue spraying stations on the movable platform. Other interior trim parts can be installed or removed simultaneously with glue spraying without stopping the machine, thus improving work efficiency.

[0004] The glue spraying device for automotive interiors disclosed in the aforementioned utility model patent uses a glue gun to spray glue onto interior parts. During the glue spraying process, some glue will remain at the head of the glue gun. After a long period of operation, the glue will adhere to the opening of the glue gun and the outer surface of the glue gun. After the glue solidifies, it will block the opening of the glue gun. Since the glue gun is connected to the lower end of the electric cylinder and also needs to be connected to the glue supply device, disassembly is difficult, making it inconvenient to clean and maintain the glue spraying device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a glue spray gun for automotive injection molded parts, which solves the problem of inconvenient cleaning and maintenance of existing glue spraying devices.

[0006] According to an embodiment of this utility model, a glue spray gun for automotive injection molding parts includes a mounting body and a spray gun body. The mounting body includes a mounting base and a first connector disposed on the mounting base. The mounting base has a glue storage cavity and a connecting pipe communicating with the glue storage cavity. The first connector has a movable block and a spring abutting against the movable block. The movable block has a through hole, and the end of the movable block near the mounting base has a glue inlet hole communicating with the through hole. The spring drives the movable block to move away from the mounting body. The spray gun body includes a second connector detachably connected to the first connector. The second connector has a nozzle and a glue guide tube communicating with it. When the second connector is installed on the first connector, the glue guide tube extends into the first connector and abuts against the movable block, pushing the end of the movable block with the glue inlet hole into the glue storage cavity. When the second connector is removed from the first connector, the spring drives the end of the movable block with the glue inlet hole to move out of the glue storage cavity so that the glue inlet hole is not communicating with the glue storage cavity.

[0007] Furthermore, the end of the mounting base away from the first connector has a mounting plate, and the mounting plate is provided with a plurality of mounting holes spaced apart.

[0008] Furthermore, the mounting plate has a mounting cavity on the side away from the first connector and a heating plate is provided inside the mounting cavity. The mounting plate is provided with a removable cover plate and the cover plate covers the opening of the mounting cavity.

[0009] Furthermore, the first connector has a receiving cavity at one end near the mounting base and a through hole communicating with the receiving cavity at the other end away from the mounting base. The movable block and the spring are respectively disposed in the receiving cavity. The through hole is concentric with the through hole and the through hole allows the guide tube to pass through.

[0010] Furthermore, the mounting base is provided with a guide hole that connects the glue storage cavity and the receiving cavity, and part of the movable block extends into the guide hole and fits against the inner wall of the guide hole.

[0011] Furthermore, the movable block has a positioning hole at one end away from the glue storage cavity that communicates with the through hole, and the positioning hole is concentric with the through hole, and the glue guide tube cooperates with the positioning hole.

[0012] Furthermore, a connecting ring is fitted onto the first connector, the connecting ring having a first threaded hole and the second connector having a first threaded portion that mates with the first threaded hole, and a portion of the first connector is clamped between the connecting ring and the second connector.

[0013] Furthermore, a limiting boss is provided on the outer peripheral wall of the guide tube. The limiting boss is located between the first connector and the second connector, and the two opposite sides of the limiting boss abut against the first connector and the second connector, respectively.

[0014] Furthermore, the second connector has a second threaded hole at the end away from the first connector, and the nozzle has a second threaded portion that mates with the second threaded hole.

[0015] Furthermore, the nozzle is provided with a third threaded hole, and the guide tube is provided with a third threaded portion that mates with the third threaded hole.

[0016] Compared with the prior art, this utility model has the following advantages: By adopting a detachable spray gun body on the mounting body, the mounting base in the mounting body is fixed on the glue spraying device and the connecting pipe is connected to the glue supply device. The glue supply device inputs glue into the glue storage chamber. The spray gun body is installed on the mounting body through a detachable connection between the second connector and the first connector. After the second connector and the first connector are combined, the glue guide tube extends into the first connector and pushes the movable block with the glue inlet hole into the glue storage chamber. At this time, the glue in the glue storage chamber can enter the nozzle along the movable block and the glue guide tube and pass through... The nozzle sprays onto the surface of the injection molded part. When maintenance is required, the second connector can be removed from the first connector to remove the spray gun body from the mounting body. This allows for cleaning of the spray gun body to remove the solidified glue adhering to the nozzle. After the second connector is removed, the spring drives the movable block to move the end with the glue inlet hole out of the glue storage chamber, so that the glue inlet hole is not connected to the glue storage chamber, thus preventing glue leakage from the glue storage chamber. This solves the technical problem of the inconvenience of cleaning and maintenance of existing glue spraying devices, and produces the technical effect of convenient cleaning of solidified glue adhering to the nozzle and convenient disassembly and assembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a glue gun for automotive injection molding parts according to an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of a glue gun for automotive injection molding parts according to an embodiment of the present invention.

[0019] Figure 3 This is a cross-sectional view of the mounting body in a glue gun for automotive injection molding parts according to an embodiment of the present invention;

[0020] Figure 4 This is an exploded view of the spray gun body in an automotive injection molding glue gun according to an embodiment of the present invention.

[0021] In the above figures: 1. Mounting base; 11. Glue storage cavity; 12. Connecting pipe; 13. Mounting plate; 14. Mounting hole; 15. Heating plate; 16. Cover plate; 17. Guide hole; 2. First connector; 21. Receiving cavity; 22. Through hole; 23. Connecting ring; 24. First threaded hole; 3. Movable block; 31. Through hole; 32. Glue inlet hole; 33. Positioning hole; 4. Spring; 5. Second connector; 51. First threaded part; 6. Nozzle; 61. Second threaded part; 62. Third threaded hole; 7. Glue guide tube; 71. Limiting boss; 72. Third threaded part. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 4 As shown in the figure, this utility model embodiment proposes an automotive injection molding glue gun, which is installed on a glue spraying equipment and is used to spray glue onto injection molded parts during the automotive interior production process, facilitating the subsequent lamination of leather or fabric onto the injection molded parts.

[0024] Please refer to Figure 1 , Figure 2 and Figure 3The automotive injection molding part spray gun includes a mounting body and a spray gun body. The mounting body includes a mounting base 1 and a first connector 2 disposed on the mounting base 1. The mounting base 1 is fixedly connected to a spraying device to mount the automotive injection molding part spray gun on the spraying device. The mounting base 1 has a glue storage cavity 11 and a connecting pipe 12 communicating with the glue storage cavity 11. The connecting pipe 12 is used to connect to a glue supply device, and the glue delivered by the glue supply device is stored in the glue storage cavity 11. The first connector 2 is provided with a movable block 3 and a spring 4 abutting against the movable block 3. The movable block 3 has a through hole 31, and the end of the movable block 3 near the mounting base 1 is provided with a glue inlet hole 32 communicating with the through hole 31. The spring 4 drives the movable block 3 to move away from the mounting body. The spray gun body includes a component detachable from the first connector 2. The second connector 5 is connected to the first connector 2. The second connector 5 is provided with a nozzle 6 and a guide tube 7 that are connected. When the second connector 5 is installed on the first connector 2, the guide tube 7 extends into the first connector 2 and abuts against the movable block 3, pushing the end of the movable block 3 with the glue inlet hole 32 into the glue storage cavity 11. At this time, the glue storage cavity 11, the movable head, the guide tube 7 and the nozzle 6 are connected in sequence, so that the glue in the glue storage cavity 11 can enter the nozzle 6 and be sprayed out from the opening of the nozzle 6. When the second connector 5 is removed from the first connector 2, the spring 4 drives the end of the movable block 3 with the glue inlet hole 32 to move out of the glue storage cavity 11, so that the glue inlet hole 32 is not connected to the glue storage cavity 11, so that the glue in the glue storage cavity 11 is kept in the glue storage cavity 11.

[0025] Specifically, the operation steps for spraying glue onto the surface of the injection molded part using the glue spray gun provided in this embodiment are as follows: The mounting base 1 is fixed on the glue spraying device, and the connecting pipe 12 is connected to the glue supply device. The glue supply device inputs glue into the glue storage chamber 11. When the second connector 5 is installed on the first connector 2, the glue guide tube 7 extends into the first connector 2, pushing the movable block 3 with the glue inlet hole 32 into the glue storage chamber 11. At this time, the glue in the glue storage chamber 11 can enter the nozzle 6 along the movable block 3 and the glue guide tube 7 and be sprayed onto the surface of the injection molded part through the nozzle 6. It is necessary to... When cleaning the opening of the nozzle 6, the spray gun body can be removed from the mounting body by detaching the second connector 5 from the first connector 2. This allows for cleaning of the spray gun body to remove the solidified glue adhering to the nozzle 6. When the second connector 5 is removed, the glue spray tube exits the first connector 2. Simultaneously, the spring 4 drives the movable block 3 to move away from the mounting base 1, causing the end of the movable block 3 with the glue inlet hole 32 to move out of the glue storage chamber 11. At this time, the glue inlet hole 32 is not connected to the glue storage chamber 11, thus sealing the glue storage chamber 11 to prevent glue leakage. The automotive injection molding glue spray gun provided in this embodiment allows for convenient cleaning of the solidified glue adhering to the nozzle 6 by detaching the second connector 5 from the first connector 2. Furthermore, maintenance does not require separating the mounting body from the glue spraying device and glue supply device, making disassembly and assembly convenient.

[0026] like Figure 1 and Figure 3 As shown, the mounting base 1 has a mounting plate 13 at the end away from the first connector 2, and the mounting plate 13 is provided with a plurality of mounting holes 14 at intervals. The mounting plate 13 provided on the mounting base 1 is used to install the mounting base 1 onto the glue spraying device. The mounting base 1 is provided with a plurality of mounting holes 14 at intervals. The mounting body can be locked on the glue spraying device by passing bolts through the mounting holes 14 and the holes on the glue spraying device and locking them with nuts, so as to ensure reliable connection between the glue spraying gun of the automotive injection molded parts and the glue spraying device.

[0027] In detail, the mounting plate 13 has a mounting cavity on the side away from the first connector 2, and an electric heating plate 15 is provided in the mounting cavity. The mounting plate 13 is provided with a removable cover plate 16, and the cover plate 16 covers the opening of the mounting cavity. By setting the electric heating plate 15 on the mounting base 1 to heat the glue in the glue storage cavity 11, the glue input into the glue storage cavity 11 by the glue supply device is kept flowing, preventing the glue in the mounting body from solidifying and causing blockage of the mounting body.

[0028] Please combine Figure 2 and Figure 3 The first connector 2 has a receiving cavity 21 at one end near the mounting base 1, and a through hole 22 communicating with the receiving cavity 21 at the other end away from the mounting base 1. The movable block 3 and the spring 4 are respectively disposed in the receiving cavity 21. The through hole 22 is concentric with the through hole 31, and the through hole 22 allows the guide tube 7 to pass through. The movable block 3 and the spring 4 are housed in the receiving cavity 21. When the movable block 3 moves, it moves within the receiving cavity 21 to prevent the movable block 3 from detaching from the first connector 2. When the spray gun body is installed on the mounting body, the guide tube 7 passes through the through hole 22 and abuts against the movable block 3, ensuring that the guide tube 7 is aligned with the movable block 3 and communicates with the through hole 31 on the movable block 3.

[0029] In this embodiment, the mounting base 1 is provided with a guide hole 17 connecting the glue storage cavity 11 and the receiving cavity 21. Part of the movable block 3 extends into the guide hole 17 and fits against the inner wall of the guide hole 17. The guide hole 17 provided on the mounting base 1 is used to cooperate with the movable block 3 and restrict the movement direction of the movable block 3 to prevent the movable block 3 from deviating unexpectedly. When the movable block 3 moves, the end of the movable block 3 with the glue inlet hole 32 moves in the guide hole 17. When the second connector 5 is combined with the first connector 2, the glue guide tube 7 pushes the end of the movable block 3 with the glue inlet hole 32 to extend out of the guide hole 17. At this time, the glue inlet hole 32 is connected to the glue storage cavity 11. When the second connector 5 is removed from the first connector 2, the movable block 3 moves under the push of the spring 4 and the end of the movable block 3 with the glue inlet hole 32 retracts into the guide hole 17. At this time, the glue inlet hole 32 is no longer connected to the glue storage cavity 11.

[0030] like Figure 3 As shown, the movable block 3 has a positioning hole 33 at its end away from the glue storage cavity 11, which communicates with the through hole 31 and is concentric with the through hole 22. The glue guide tube 7 mates with the positioning hole 33. The glue guide tube 7 passes through the through hole 22 and is inserted into the positioning hole 33, which helps to improve the stability of the fit between the glue guide tube 7 and the movable block 3 and prevents glue from leaking between the glue guide tube 7 and the movable block 3 when the glue flows in the glue gun of the automotive injection molding part.

[0031] Please refer to Figure 2 , Figure 3 and Figure 4A connecting ring 23 is fitted onto the first connector 2. The connecting ring 23 has a first threaded hole 24, and the second connector 5 has a first threaded portion 51 that mates with the first threaded hole 24. Part of the first connector 2 is clamped between the connecting ring 23 and the second connector 5. The first connector 2 and the second connector 5 are connected through the engagement of the first threaded hole 24 and the first threaded portion 51 on the connecting ring 23. After aligning the second connector 5 with the first connector 2, rotating the connecting ring 23 locks the second connector 5 onto the first connector 2, ensuring a reliable fit between the first connector 2 and the second connector 5 and maintaining the stable position of the spray gun body on the mounting body.

[0032] Specifically, the outer peripheral wall of the adhesive guide tube 7 is provided with a limiting protrusion 71. The limiting protrusion 71 is located between the first connector 2 and the second connector 5, and the two opposite sides of the limiting protrusion 71 abut against the first connector 2 and the second connector 5, respectively. During the insertion of the adhesive guide tube 7 into the first connector 2, it pushes the movable block 3 to move within the first connector 2 until the limiting protrusion 71 abuts against the first connector 2. At this time, the adhesive guide tube 7 pushes the end of the movable block 3 with the adhesive inlet hole 32 into the adhesive storage cavity 11, preventing the movable block 3 from not moving into position, which would prevent the adhesive from flowing normally into the nozzle 6.

[0033] like Figure 2 and Figure 4 As shown, the second connector 5 has a second threaded hole at the end away from the first connector 2, and the nozzle 6 has a second threaded portion 61 that mates with the second threaded hole. The second connector 5 and the nozzle 6 are connected through the mating of the second threaded hole and the second threaded portion 61, ensuring a reliable fit between the second connector 5 and the nozzle 6. This also facilitates the removal of the nozzle 6 from the second connector 5 for cleaning, and allows for easy reassembly of the second connector 5 and the nozzle 6 after cleaning.

[0034] In detail, the nozzle 6 is provided with a third threaded hole 62, and the glue guide tube 7 is provided with a third threaded portion 72 that mates with the third threaded hole 62. One end of the glue guide tube 7 with the third threaded portion 72 extends into the second connector 5 and mates with the third threaded hole 62 on the glue guide tube 7 to fix the glue guide tube 7 on the second connector 5, while ensuring a tight fit between the glue guide tube 7 and the nozzle 6, so that the glue in the glue guide tube 7 can be smoothly fed into the nozzle 6 along the glue guide tube 7, which helps to improve the reliability of the glue gun for automotive injection molding parts.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A glue spray gun for automotive injection molded parts, characterized in that: The device includes a mounting body and a spray gun body. The mounting body includes a mounting base and a first connector mounted on the mounting base. The mounting base has a glue storage cavity and a connecting pipe communicating with the glue storage cavity. The first connector has a movable block and a spring abutting against the movable block. The movable block has a through hole and a glue inlet hole communicating with the through hole at one end of the movable block near the mounting base. The spring drives the movable block to move away from the mounting body. The spray gun body includes a second connector detachably connected to the first connector. The second connector has a nozzle and a glue guide tube communicating with it. When the second connector is installed on the first connector, the glue guide tube extends into the first connector and abuts against the movable block, pushing the end of the movable block with the glue inlet hole into the glue storage cavity. When the second connector is removed from the first connector, the spring drives the end of the movable block with the glue inlet hole to move out of the glue storage cavity so that the glue inlet hole is no longer communicating with the glue storage cavity.

2. The glue gun for automotive injection molded parts as described in claim 1, characterized in that: The mounting base has a mounting plate at the end away from the first connector, and the mounting plate has a plurality of mounting holes spaced apart.

3. The glue gun for automotive injection molded parts as described in claim 2, characterized in that: The mounting plate has a mounting cavity on the side away from the first connector and a heating plate is provided inside the mounting cavity. The mounting plate is provided with a removable cover plate and the cover plate covers the opening of the mounting cavity.

4. The glue spray gun for automotive injection molded parts as described in claim 1, characterized in that: The first connector has a receiving cavity at one end near the mounting base and a through hole communicating with the receiving cavity at the other end away from the mounting base. The movable block and the spring are respectively disposed in the receiving cavity. The through hole is concentric with the through hole and the through hole allows the guide tube to pass through.

5. The glue gun for automotive injection molded parts as described in claim 4, characterized in that: The mounting base is provided with a guide hole that connects the glue storage cavity and the receiving cavity, and part of the movable block extends into the guide hole and fits against the inner wall of the guide hole.

6. The glue gun for automotive injection molded parts as described in claim 4, characterized in that: The movable block has a positioning hole at one end away from the glue storage cavity that communicates with the through hole and the positioning hole is concentric with the through hole. The glue guide tube is matched with the positioning hole.

7. The glue gun for automotive injection molded parts as described in claim 1, characterized in that: A connecting ring is fitted onto the first connector head, the connecting ring having a first threaded hole, and the second connector head having a first threaded portion that mates with the first threaded hole, with a portion of the first connector head being clamped between the connecting ring and the second connector head.

8. The glue gun for automotive injection molded parts as described in claim 1, characterized in that: The outer peripheral wall of the guide tube is provided with a limiting boss, which is located between the first connector and the second connector, and the two opposite sides of the limiting boss abut against the first connector and the second connector respectively.

9. The glue gun for automotive injection molded parts as described in claim 1, characterized in that: The second connector has a second threaded hole at one end away from the first connector, and the nozzle has a second threaded portion that mates with the second threaded hole.

10. The glue gun for automotive injection molded parts as described in claim 1, characterized in that: The nozzle is provided with a third threaded hole, and the guide tube is provided with a third threaded part that mates with the third threaded hole.

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