A flexible, single module, multi-functional glue gun

Abstract

This invention discloses a flexible, single-module multifunctional glue gun, belonging to the field of glue dispensing devices. It includes: a glue gun body, a glue dispensing head, a glue adapter, and a valve body. Compared with existing technologies, the glue adapter and valve body of the glue gun body of this application are detachably mounted on the first and second mounting walls of the glue gun body, respectively, and the glue dispensing head is detachably mounted on the third mounting wall of the glue adapter. This allows for modular assembly of the valve body, glue dispensing head, and glue adapter, enabling flexible replacement and adjustment. It offers multifunctionality, expanding application scenarios and reducing inventory and usage costs.

Description

Technical Field

[0001] This invention belongs to the field of glue dispensing devices, and specifically relates to a flexible, single-module multifunctional glue gun. Background Technology

[0002] Hot melt adhesive spraying is a process that involves applying a hot melt adhesive to a substrate material to perform bonding and lamination operations. It has wide applications in industries such as non-woven fabrics, papermaking, household paper, baby and women's products, automobiles, packaging, and hygiene materials. Hot melt adhesive glue guns based on this process are a well-known technology.

[0003] A glue gun typically consists of a gun body and a dispensing head. A glue adapter is usually installed between the gun body and the dispensing head, and a valve is mounted on the adapter to control the glue flow. During operation, hot melt glue is forced into the gun body by pressure, then passes through the glue adapter into the dispensing head, and finally is applied to the material through the dispensing nozzle.

[0004] Currently, glue guns on the market can be categorized into different types based on their working principles, such as continuous valve bodies and intermittent reverse-pulse valve bodies. Dispensing heads also come in various types and specifications to adapt to different products, often requiring different types of glue adapters. However, existing glue guns often lack interchangeable valve bodies, dispensing heads, and glue adapters, hindering modular assembly. This limits the application scenarios of the glue gun and increases inventory costs for both manufacturers and customers. Summary of the Invention

[0005] To address the aforementioned issues, the present invention aims to provide a flexible, single-module multi-functional glue gun. The valve body, glue nozzle, and glue adapter can be modularly assembled for easy replacement, allowing for flexible adjustment, expanding application scenarios, and reducing inventory and usage costs.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] This invention also provides a flexible, single-module multi-functional glue gun, comprising:

[0008] The glue gun body has an inlet on its outer wall and an adhesive delivery channel inside, with the inlet connected to the adhesive delivery channel.

[0009] The dispensing head has a dispensing channel and a dispensing port for scraping glue onto the surface of a material. The dispensing channel is disposed inside the dispensing head, and the dispensing port is located at the bottom of the dispensing head and is connected to the outlet of the dispensing channel.

[0010] An adhesive adapter has an adhesive transfer path for introducing adhesive into a dispensing head, and the adhesive delivery channel is connected to the inlet of the dispensing channel through the adhesive transfer path.

[0011] A valve body, the valve body being used to control the opening and closing of the adhesive delivery channel;

[0012] The glue gun body has a first mounting wall on one side and a second mounting wall on the other side. The glue adapter is detachably mounted on the first mounting wall, and the valve body is detachably mounted on the second mounting wall. The glue adapter has a third mounting wall on the side opposite to the glue gun body, and the glue dispensing head is detachably mounted on the third mounting wall.

[0013] Furthermore, the dispensing head is one of the following: a grooved wedge scraper, a dotted line scraper, a flat line scraper, or a rubber band scraper.

[0014] Furthermore, the glue dispensing channel of the groove wedge scraper includes: a main channel and multiple branch channels, both the main channel and the branch channels are arranged vertically, the glue dispensing head has a horizontally arranged glue buffer tank, the inlet of the main channel is connected to the transfer glue path, one end of each of the multiple branch channels is connected to the outlet of the main channel, and the other end is respectively connected to different positions of the glue buffer tank, so that the glue is evenly dispersed in the glue buffer tank; the glue buffer tank is connected to the glue outlet.

[0015] Furthermore, one side of the dispensing port is an arc-shaped wall, and the other side is a sloping wall, forming a "single-sided arc-shaped transition pointed convex nozzle" structure. During adhesive application, the material flows from one side of the arc surface to the other side of the sloping surface. As it passes through the dispensing port, the port applies the adhesive to the material. This structural design allows the dispensing port to better conform to the material in the direction it faces, reducing material movement and improving the adhesive application effect. In the direction it moves away from the material, the sloping surface reduces adhesive adhesion.

[0016] Furthermore, the dispensing head includes a front panel and a back panel, which are detachably connected by bolts. The dispensing port is located between the front panel and the back panel, with the arc-shaped wall on the front panel and the inclined wall on the back panel.

[0017] Furthermore, the main channel is located inside the base plate, while the sub-channels and glue buffer tank are both located inside the panel.

[0018] Furthermore, the dotted line adhesive scraper includes a scraper body and one or more conical adhesive dispensing portions. The adhesive dispensing channel is disposed within the scraper body, the adhesive outlet is located at the lower end of the adhesive dispensing portion, and the end of the adhesive dispensing channel extends through the adhesive dispensing portion to communicate with the adhesive outlet.

[0019] Furthermore, the flat-tip glue scraper includes: a block-shaped glue dispensing section, the block-shaped glue dispensing section being formed at the bottom of the block-shaped glue dispensing section, and the end of the glue dispensing channel extending through the glue dispensing section to communicate with the glue dispensing port.

[0020] Furthermore, the dispensing head is an elastic band scraper, and the bottom of the elastic band scraper has a "Λ"-shaped elastic band limiting groove, and the dispensing port is opened on the inner wall of the elastic band limiting groove.

[0021] Furthermore, the first mounting wall is located on the bottom surface of the glue gun body, and the second mounting wall is located on the top surface of the glue gun body.

[0022] Furthermore, the valve body includes a continuous valve body and a reverse-pulse intermittent valve body. Through modular installation, it can be flexibly replaced. A solenoid valve is also installed on the valve body to control the operation of the valve body.

[0023] Furthermore, the bottom wall of the glue gun body has a slope, with the lower end of the slope close to the glue adapter and the upper end away from the glue adapter. This sloped design prevents direct contact between the glue gun body and the material. Combined with the curved wall design, this increases the adjustable distance between the glue nozzle and the material, allowing the material to better adhere to the glue nozzle and reducing material movement. It also facilitates better adhesion between the material and the glue nozzle, improving the glue application quality.

[0024] Furthermore, the inclination angle of the inclined plane is 15-30 degrees.

[0025] Furthermore, the glue adapter has a fourth mounting wall that fits into the first mounting wall and is connected by screws, thereby enabling a detachable connection between the glue adapter and the glue gun body. This facilitates the disassembly and replacement of the glue adapter and allows for modular installation of the glue adapter.

[0026] Furthermore, the adhesive delivery channel extends to the first mounting wall to form an adhesive channel outlet, and the inlet of the transfer adhesive path extends to the fourth mounting wall to form an adhesive path inlet, with the adhesive channel outlet and the adhesive path inlet being connected opposite each other.

[0027] Furthermore, one side of the dispensing head has a fifth mounting wall, which is attached to the third mounting wall and the two are fixedly connected by bolts to realize a detachable connection between the dispensing head and the glue adapter, thereby facilitating the disassembly and replacement of the dispensing head and realizing modular installation of the dispensing head.

[0028] Furthermore, the outlet of the transfer adhesive path extends to the third mounting wall to form an adhesive path outlet, and the inlet of the adhesive outlet channel extends to the fifth mounting wall to form a scraping adhesive inlet, with the adhesive path outlet and the scraping adhesive inlet being connected opposite each other.

[0029] Furthermore, a valve body docking groove is provided on the second mounting wall, the adhesive delivery channel passes through the valve body docking groove, and the lower part of the valve body is installed in the valve body docking groove so as to realize the opening or blocking of the transfer adhesive circuit by the movement of the valve stem.

[0030] Furthermore, the second mounting wall is detachably connected to the valve body by bolts, thereby enabling a detachable connection between the valve body and the glue gun body, which facilitates the disassembly and replacement of the valve body and realizes modular installation of the valve body.

[0031] Furthermore, the glue gun body is also equipped with a glue filter tank, and a glue filter is installed in the glue filter tank. The glue filter is located on the path of the glue delivery channel. After the glue enters the glue delivery channel from the glue inlet, it is filtered by the glue filter and then enters the glue outlet from the glue adapter for dispensing.

[0032] Furthermore, multiple glue inlets are provided, which are respectively opened on the top wall, side wall, and back wall of the glue gun body, so as to realize glue feeding from multiple directions and improve glue feeding efficiency.

[0033] Furthermore, the glue inlet is equipped with a glue inlet connector, which can be connected to an external glue inlet device to realize glue inlet.

[0034] Furthermore, the glue gun body has a sixth mounting wall, which is arranged side by side with the valve body and there is a gap between them.

[0035] The beneficial effects of this invention are as follows: Compared with the prior art, the glue adapter and valve body of the glue gun body of this application can be detachably installed on the first mounting wall and the second mounting wall of the glue gun body, respectively, and the glue dispensing head can be detachably installed on the third mounting wall of the glue adapter. This enables modular assembly of the valve body, glue dispensing head, and glue adapter, and allows for flexible replacement of the valve body, glue dispensing head, and glue adapter, achieving flexible adjustment and multi-functional effects. This not only improves application scenarios but also reduces inventory and usage costs. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of a flexible, single-module, multi-functional glue gun that uses a grooved wedge scraper nozzle.

[0037] Figure 2 An exploded view of a flexible, single-module multi-functional glue gun using a grooved wedge nozzle.

[0038] Figure 3 This is a cross-sectional view of a flexible, single-module, multi-functional glue gun that uses a grooved wedge nozzle.

[0039] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0040] Figure 5 This is an exploded view of the grooved scraper nozzle.

[0041] Figure 6 This is a schematic diagram of a flexible, single-module, multi-functional glue gun that uses a dotted line glue nozzle.

[0042] Figure 7 This is a schematic diagram of the structure of a dotted line adhesive scraper nozzle.

[0043] Figure 8 This is a structural diagram of a flexible, single-module, multi-functional glue gun that uses a flat-nozzle glue scraper.

[0044] Figure 9 This is a schematic diagram of the structure of a flat-nozzle wire scraper nozzle.

[0045] Figure 10 This is a structural diagram of a flexible, single-module, multi-functional glue gun that uses an elastic band scraper nozzle.

[0046] Figure 11 This is a schematic diagram of the rubber band scraper nozzle.

[0047] In the diagram: 1. Glue gun body; 11. Glue inlet; 12. Glue delivery channel; 13. First mounting wall; 14. Second mounting wall; 15. Sloping surface; 16. Glue filter tank; 17. Glue filter; 18. Glue inlet connector; 19. Heating rod; 110. Sixth mounting wall; 111. Valve body docking groove; 112. Plug;

[0048] 2. Glue dispensing head; 21. Glue dispensing channel; 211. Main channel; 212. Sub-channel; 22. Glue outlet; 221. Arc-shaped wall; 222. Sloping wall; 23. Panel; 24. Base plate; 25. Fifth mounting wall; 26. Glue buffer tank; 27. Scraper body; 28. Conical glue dispensing part; 29. ​​Block-shaped glue dispensing part; 210. Elastic band limiting groove;

[0049] 3. Glue adapter; 31. Glue transfer path; 32. Third mounting wall; 33. Fourth mounting wall;

[0050] 4. Valve body; 5. Pneumatic solenoid valve. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0052] To achieve the above objectives, the technical solution of the present invention is as follows:

[0053] See Figures 1-5 This embodiment provides a flexible, single-module multi-functional glue gun, including:

[0054] The glue gun body 1 has an inlet 11 on its outer side wall and an adhesive delivery channel 12 for delivering hot melt adhesive inside. The inlet 11 is connected to the adhesive delivery channel 12.

[0055] The dispensing head 2 has a dispensing channel 21 for conveying adhesive liquid and a dispensing port 22 for scraping adhesive liquid onto the surface of the material. The dispensing port 22 is located at the bottom of the dispensing head 2 and is connected to the outlet of the dispensing channel.

[0056] The glue adapter 3 has a glue transfer path 31 for introducing glue into the glue outlet 2, and the glue delivery channel 12 is connected to the inlet of the glue outlet channel 21 through the glue transfer path 31.

[0057] Valve body 4, which is used to control the opening and closing of the adhesive delivery channel 12;

[0058] The glue gun body 1 has a first mounting wall 13 on one side and a second mounting wall 14 on the other side. The glue adapter 3 is detachably mounted on the first mounting wall 13, and the valve body 4 is detachably mounted on the second mounting wall 14. The glue adapter 3 has a third mounting wall 32 on the side opposite to the glue gun body, and the glue dispensing head 2 is detachably mounted on the third mounting wall 32.

[0059] The working principle of the glue gun in this application is as follows: external hot melt adhesive enters the glue gun body 1 from the glue inlet 11, then enters the glue transfer channel 31 of the glue transfer seat 3 from the glue delivery channel 12, then enters the glue outlet channel 21 of the glue outlet head 2 from the glue outlet 21, and finally is applied to the material that needs to be coated with glue from the glue outlet 22; a pneumatic solenoid valve 5 is installed on the valve body 4, and the pneumatic solenoid valve 5 controls the external air source to enter the valve body 4 from different inlets, pushing the valve rod up and down to realize the opening or blocking of the glue delivery channel 12. When the glue delivery channel 12 is open, the glue can smoothly enter the glue outlet head 2 for scraping. When the glue delivery channel 12 is blocked, the glue cannot enter the glue outlet head 2, thereby realizing the control of the glue spraying of the glue gun.

[0060] In this embodiment, each glue gun body 1 is equipped with a glue adapter 3 and a valve body 4, making it a single-module glue gun. Each glue adapter 3 has at least one glue outlet 2 installed at its bottom.

[0061] Depending on the material to be coated, the type of dispensing head 2 can be different, including grooved wedge scraper, dotted line scraper, flat line scraper, and rubber band scraper.

[0062] Among them, valve body 4 adopts one of continuous valve body or reverse-pulling intermittent valve body. The stroke and flow of continuous valve body can be adjusted, while the stroke and flow of reverse-pulling intermittent valve body cannot be adjusted. Both are existing technologies and can be selected according to different application scenarios.

[0063] Compared to existing technologies, the advantages of this embodiment are as follows: the glue adapter 3 and the valve body 4 are detachably mounted on the first mounting wall 13 and the second mounting wall 14 of the glue gun body 1, respectively, and the dispensing head is detachably mounted on the third mounting wall 32 of the glue adapter. This enables modular assembly of the valve body 4, the dispensing head 2, and the glue adapter 3. One glue gun body 1 can be equipped with different valve bodies 4, dispensing heads 2, and glue adapter 3 to achieve intermittent or continuous glue dispensing, solving the composite needs of different materials. The valve body 4, dispensing head 2, and glue adapter 3 can be flexibly selected to achieve flexible adjustment, which can not only improve the application scenarios but also reduce inventory costs. When manufacturing, manufacturers can produce fewer glue gun bodies 1 and more valve bodies 4, dispensing heads 2, and glue adapter 3. When purchasing, customers only need to buy one glue gun body 1 and replace it with different valve bodies 4, dispensing heads 2, and glue adapter 3. Meanwhile, since the dispensing head 2 can be replaced according to different materials being applied, it can meet the application needs of different functions, thus achieving a multi-functional dispensing effect.

[0064] In this embodiment, the dispensing head 2 adopts a grooved wedge nozzle. One side of the dispensing port 22 is an arc-shaped wall 221, and the other side is a sloping wall 222, forming a structure with a "single-sided arc-shaped transition pointed convex nozzle". During glue application, the material flows from one side of the arc-shaped wall 221 to the other side of the sloping wall 222. When passing through the dispensing port 22, the dispensing port 22 applies the glue to the material. The design of the above structure allows the dispensing port to better fit with the material in the direction of material reception through the arc surface design, reducing material bounce and improving the glue application effect. In the direction away from the material, the sloping surface design reduces glue adhesion.

[0065] Furthermore, the dispensing head 2 includes a panel 23 and a base plate 24, which are detachably connected by bolts. The dispensing port 22 is located between the panel 23 and the base plate 24, and the arc-shaped wall 221 is located on the panel 23 and the inclined wall 222 is located on the base plate 24.

[0066] Furthermore, the glue dispensing channel 21 includes: a main channel 211 and multiple branch channels 212. The main channel 211 and the branch channels 212 are both arranged vertically. The glue dispensing head 2 has a horizontally arranged glue buffer tank 26. The inlet of the main channel 211 is connected to the transfer glue path. One end of each of the multiple branch channels 212 is connected to the outlet of the main channel 211, and the other end is connected to different positions of the glue buffer tank 26, so that the glue is evenly dispersed in the glue buffer tank 26. The glue buffer tank 26 is connected to the glue outlet.

[0067] Furthermore, the main channel 211 is located within the base plate 24, and the sub-channels 212 and the glue buffer tank 26 are both located within the panel 23.

[0068] Furthermore, the bottom wall of the glue gun body 1 has a slope 15. The lower end of the slope 15 is close to the glue adapter 3, and the upper end of the slope 15 is away from the glue adapter 3. The design of the slope 15 can avoid direct contact between the glue gun body 1 and the material. This can increase the adjustable space between the glue nozzle and the material, which is conducive to the material better adhering to the glue nozzle and reducing material bounce. It can also facilitate the adhesion between the material and the glue nozzle 22 and improve the glue application quality.

[0069] Furthermore, the inclination angle of the inclined plane 15 is 20 degrees.

[0070] Furthermore, the first mounting wall 13 is located on the bottom surface of the glue gun body, and the second mounting wall 14 is located on the top surface of the glue gun body.

[0071] Furthermore, the glue adapter 3 has a fourth mounting wall 33, which is fitted to the first mounting wall 13 and the two are connected by screws to realize a detachable connection between the glue adapter 3 and the glue gun body 1, thereby facilitating the disassembly and replacement of the glue adapter 3 and realizing the modular installation of the glue adapter.

[0072] Furthermore, the adhesive delivery channel 12 extends to the first mounting wall 13 to form an adhesive channel outlet, and the inlet of the adapter adhesive path 31 extends to the fourth mounting wall 33 to form an adhesive path inlet. The adhesive channel outlet and the adhesive path inlet are connected opposite each other. This structure, while ensuring that the adhesive adapter 3 is modularly assembled on the glue gun body 1, also enables communication between the adhesive delivery channel 12 and the adapter adhesive path 31, thereby allowing the adhesive from the glue gun body 1 to be introduced into the adhesive adapter 3.

[0073] Furthermore, one side of the dispensing head 2 has a fifth mounting wall 25, which is attached to the third mounting wall 32 and the two are fixedly connected by bolts, so as to realize the detachable connection between the dispensing head 2 and the glue adapter 3, thereby facilitating the disassembly and replacement of the dispensing head 2 and realizing the modular installation of the dispensing head 2.

[0074] Furthermore, the outlet of the adapter adhesive path 31 extends to the third mounting wall 32 to form an adhesive path outlet, and the inlet of the adhesive dispensing channel extends to the fifth mounting wall to form a scraper adhesive inlet. The adhesive path outlet and the scraper adhesive inlet are connected opposite each other. This structure, while ensuring that the dispensing head 2 is modularly assembled on the adhesive adapter 3, also enables communication between the adapter adhesive path 31 and the dispensing channel 21, allowing the adhesive from the glue gun body 1 to be introduced into the dispensing head 2 through the adhesive adapter 3.

[0075] Furthermore, a valve body docking groove 111 is provided on the second mounting wall 14. The adhesive delivery channel 12 passes through the valve body docking groove 111, and the lower part of the valve body 4 is installed in the valve body docking groove 111, so that the opening or closing of the adhesive delivery channel 12 can be achieved by the movement of the valve stem. With the above structure, the opening or closing of the adhesive delivery channel 12 can be controlled by the valve body 4. When it is open, the adhesive can enter the dispensing head 2 for dispensing. When it is closed, the adhesive delivery channel 12 is disconnected, and the dispensing head 2 stops dispensing adhesive.

[0076] Furthermore, the glue gun body 1 is also provided with a glue filter tank 16, and a glue filter 17 is installed in the glue filter tank 16. The glue filter 17 is located on the path of the glue delivery channel 12. After the glue enters the glue delivery channel 12 from the glue inlet 11, it is filtered by the glue filter 17 and then enters the glue outlet 2 from the glue adapter 3 for dispensing.

[0077] Furthermore, multiple glue inlets 11 are provided, and these multiple glue inlets 11 are respectively opened on the top wall, side wall, and back wall of the glue gun body 1, realizing glue feeding from multiple directions and improving glue feeding efficiency. In daily use, only one glue inlet 11 is kept open, and the other glue inlets 11 can be blocked with plugs 112.

[0078] Furthermore, an adhesive inlet 11 is equipped with an adhesive inlet connector 18, which can be connected to an external adhesive inlet device to enable adhesive inlet.

[0079] Furthermore, the glue gun body 1 is also equipped with a heating rod 19 arranged horizontally and intersecting with the glue delivery channel 12. This heating rod is used to heat the glue in the glue delivery channel 12, preventing the glue from solidifying and ensuring that the glue can flow smoothly. The horizontal arrangement of the heating rod 19, intersecting with the glue delivery channel 12, evenly acts on the glue delivery channel 12, resulting in a high degree of temperature uniformity of the glue in the glue delivery channel 12 and more uniform glue dispensing.

[0080] Furthermore, the glue gun body 1 has a sixth mounting wall 110, which is arranged side by side with the valve body 4 and there is a gap between them. This prevents the valve body 4 from directly contacting the glue gun body 1, avoiding heat conduction from the glue gun body 1 to the valve body 4, reducing the temperature of the valve body cylinder, and extending the service life of the seals inside the valve body.

[0081] See Figures 6-7 In another implementation, the dispensing head 2 can also be a dot-shaped glue scraper nozzle. The dot-shaped glue scraper nozzle includes a scraper body 27 and one or more tapered dispensing portions 28. A glue dispensing channel 21 is disposed within the scraper body 27, and a glue outlet 22 is located at the lower end of the dispensing portion. The end of the dispensing channel extends through the dispensing portion and communicates with the glue outlet 22. The tapered dispensing portion 28 of the dot-shaped glue scraper nozzle can perform dot-shaped glue scraping, with the scraping path forming a straight line, suitable for applications involving straight-line glue application.

[0082] See Figures 8-9 In another implementation, the dispensing head 2 can also be a flat glue scraper nozzle, which includes a block-shaped glue dispensing section 29, the block-shaped glue dispensing section 29 being formed at the bottom of the block-shaped glue dispensing section 29, and the end of the glue dispensing channel 21 extending through the glue dispensing section to communicate with the glue dispensing port 22.

[0083] See Figures 10-11 In another implementation, the dispensing head 2 can also be a rubber scraper nozzle. The bottom of the rubber scraper nozzle has one or more "Λ"-shaped rubber band limiting grooves 210. The dispensing port 22 is opened on the inner wall of the rubber band limiting groove 210, which can simultaneously apply glue to multiple rubber band materials.

[0084] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flexible, single-module multi-functional glue gun, comprising: The glue gun body has an inlet on its outer wall and an adhesive delivery channel inside, with the inlet connected to the adhesive delivery channel. The dispensing head has a dispensing channel and a dispensing port for scraping glue onto the surface of a material. The dispensing channel is disposed inside the dispensing head, and the dispensing port is located at the bottom of the dispensing head and is connected to the outlet of the dispensing channel. An adhesive adapter has an adhesive transfer path for introducing adhesive into a dispensing head, and the adhesive delivery channel is connected to the inlet of the dispensing channel through the adhesive transfer path. A valve body, the valve body being used to control the opening and closing of the adhesive delivery channel; The feature is that the glue gun body has a first mounting wall on one side and a second mounting wall on the other side, the glue adapter is detachably mounted on the first mounting wall, the valve body is detachably mounted on the second mounting wall, the glue adapter is provided with a third mounting wall on the side opposite to the glue gun body, and the glue dispensing head is detachably mounted on the third mounting wall.

2. The flexible, single-module multi-functional glue gun according to claim 1, characterized in that, The dispensing head is one of the following: a grooved wedge scraper, a dotted line scraper, a flat line scraper, or a rubber band scraper.

3. The flexible, single-module multi-functional glue gun according to claim 2, characterized in that, The glue dispensing channel of the grooved wedge scraper includes: a main channel and multiple branch channels. The main channel and branch channels are arranged vertically. The glue dispensing head has a horizontally arranged glue buffer tank. The inlet of the main channel is connected to the transfer glue path. One end of each of the multiple branch channels is connected to the outlet of the main channel, and the other end is connected to different positions of the glue buffer tank, so that the glue is evenly dispersed in the glue buffer tank. The glue buffer tank is connected to the glue outlet.

4. The flexible, single-module multi-functional glue gun according to claim 3, characterized in that, One side of the dispensing port is an arc-shaped wall, and the other side is an inclined wall, forming a structure with a "single-sided arc transition pointed convex nozzle".

5. The flexible, single-module multi-functional glue gun according to claim 4, characterized in that, The dispensing head includes a front panel and a back panel, which are detachably connected by bolts. The dispensing port is located between the front panel and the back panel, with the arc-shaped wall on the front panel and the inclined wall on the back panel.

6. The flexible, single-module multi-functional glue gun according to claim 1, characterized in that, The bottom wall of the glue gun body has a slope, the lower end of the slope is close to the glue adapter, and the upper end of the slope is away from the glue adapter.

7. The flexible, single-module multi-functional glue gun according to claim 6, characterized in that, The inclination angle of the inclined plane is 15-30 degrees.

8. The flexible, single-module multi-functional glue gun according to claim 1, characterized in that, The first mounting wall is located on the bottom surface of the glue gun body, and the second mounting wall is located on the top surface of the glue gun body.

9. The flexible, single-module multi-functional glue gun according to claim 1, characterized in that, The glue inlet is provided in multiple ways, and the multiple glue inlets are respectively opened on the top wall, side wall and back wall of the glue gun body, so as to realize glue inlet from multiple directions and improve glue inlet efficiency.

10. The flexible, single-module multi-functional glue gun according to claim 1, characterized in that, The glue gun body has a sixth mounting wall, which is arranged side by side with the valve body and there is a gap between them.

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