A glue gun with a replaceable glue module

Abstract

The utility model discloses a convenient replacement glue module's glue gun belongs to glue spraying device field. Include: glue spraying gun main part, glue spraying head, glue gas adapter seat, valve body. Compared with prior art, the glue gas adapter seat of the application can detachable installation on the first side wall of glue spraying gun main part, and glue spraying head, valve body can detachable installation respectively on the second side wall, third side wall of glue gas adapter seat, thereby can realize the modular assembly of valve body, glue spraying head, glue gas adapter seat, and valve body, glue spraying head, glue gas adapter seat can change flexibly, realize the flexible adjustment, can improve the application scene, and can reduce the goods in preparation and use cost.

Description

Technical Field

[0001] This utility model belongs to the field of glue spraying devices, and specifically relates to a glue spraying gun with a convenient glue dispensing module replacement. Background Technology

[0002] Hot melt adhesive spraying is a process that involves applying molten adhesive to a substrate material for bonding and laminating other materials. It has wide applications in industries such as nonwovens, papermaking, household paper, baby and women's products, automobiles, packaging, and hygiene products. Hot melt adhesive spray guns based on this process are well-known. A typical hot melt adhesive spray gun consists of a gun body and a spray head. An adhesive-air adapter is usually installed between the gun body and the spray head, and a valve is mounted on the adapter to control the flow of adhesive. During operation, hot melt adhesive is forced into the gun body by pressure, then passes through the adhesive-air adapter into the spray head, and finally is applied to the relevant material through the nozzle.

[0003] To facilitate the discharge of adhesive, existing glue guns typically introduce high-pressure atomizing gas. The atomizing gas and adhesive enter the nozzle together and are then sprayed outwards. This process disperses the adhesive into small particles, making it easier to evenly coat the material. At the same time, the atomizing gas can also blow the adhesive into an S-shape or spiral shape to meet the spraying needs of different scenarios.

[0004] Then, the dispensing valve body of the existing glue gun can be divided into different types according to the working principle, such as continuous valve body and reverse-pulse intermittent valve body. The dispensing head can be divided into different types according to the dispensing method, such as spiral nozzle and S-shaped nozzle. Different valve bodies and dispensing heads often require different types or sizes of glue-air adapters. The valve body, dispensing head, and glue-air adapter of the existing glue gun are often inconvenient to replace and cannot achieve modular assembly, which not only limits the application scenarios of the glue gun, but also increases the inventory and usage costs for manufacturers and customers. Utility Model Content

[0005] To address the aforementioned issues, the primary objective of this invention is to provide a glue gun with a convenient glue dispensing module replacement mechanism. The valve body, glue nozzle, and glue-air adapter can be modularly assembled for easy replacement, allowing for flexible adjustment, thus enhancing application scenarios and reducing inventory and usage costs.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] This utility model provides a glue gun with a convenient glue dispensing module replacement, comprising:

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

[0009] A glue spray head, the glue spray head having a glue spraying channel, a glue spraying nozzle, a jet spraying channel and an atomizing gas nozzle, the glue spraying nozzle being located at the outlet of the glue spraying channel and the atomizing gas nozzle being located at the outlet of the jet spraying channel;

[0010] An adhesive-gas adapter has an adhesive transfer path for introducing liquid adhesive into a spray nozzle and an air transfer path for introducing atomizing gas into an air inlet. The liquid adhesive delivery channel is connected to the inlet of the spray nozzle channel via the adhesive transfer path, and the gas delivery channel is connected to the inlet of the spray nozzle channel via the air transfer path.

[0011] Valve body, the valve body being used to control the on / off state of the adapter rubber circuit;

[0012] The glue gun body has a first sidewall on one side, the glue-gas adapter is detachably mounted on the first sidewall, the glue-gas adapter has a second sidewall on one side and a third sidewall on the other side, the glue nozzle is detachably mounted on the second sidewall, and the valve body is detachably mounted on the third sidewall.

[0013] Furthermore, the spray nozzle includes a spiral nozzle and an S-shaped nozzle, which can be flexibly replaced through modular installation.

[0014] 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.

[0015] Furthermore, the adhesive-air adapter has a fourth sidewall that fits against the first sidewall. The first sidewall has one or more first connecting holes, and the fourth sidewall has one or more second connecting holes. The first connecting holes and the second connecting holes are connected to each other, and a first connector is detachably installed through the first connecting hole and the second connecting hole.

[0016] Furthermore, the first connecting hole and the second connecting hole are threaded holes, and the first connecting member is a screw. The screw of the first connecting member is threaded into the threaded holes of the first connecting hole and the second connecting hole, so as to realize the detachable connection between the glue and gas adapter and the glue gun body, thereby facilitating the disassembly and replacement of the glue and gas adapter and realizing the modular installation of the glue and gas adapter.

[0017] Furthermore, the adhesive delivery channel extends to the first sidewall to form an adhesive channel outlet, the inlet of the transfer adhesive path extends to the fourth sidewall to form an adhesive path inlet, and the adhesive channel outlet is connected to the adhesive path inlet; the gas delivery channel extends to the first sidewall to form a gas channel outlet, the inlet of the transfer gas path extends to the fourth sidewall to form a gas path inlet, and the gas channel outlet is connected to the gas path inlet.

[0018] Furthermore, one side of the spray nozzle has a fifth sidewall, which is attached to the second sidewall. The second sidewall has one or more third connecting holes, and the fifth sidewall has one or more fourth connecting holes. The third connecting holes and the fourth connecting holes are connected to each other, and a second connector is detachably installed through the third connecting holes and the fourth connecting holes.

[0019] Furthermore, the third and fourth connecting holes are threaded holes, and the second connector is a screw. The screw of the second connector is threaded into the threaded holes of the third and fourth connecting holes, thereby realizing a detachable connection between the spray nozzle and the glue-air adapter, which facilitates the disassembly and replacement of the spray nozzle and realizes the modular installation of the spray nozzle.

[0020] Furthermore, the outlet of the adapter adhesive path extends to the second side wall to form an adhesive path outlet, and the inlet of the spray adhesive channel extends to the fifth side wall to form a spray adhesive inlet, with the adhesive path outlet and the spray adhesive inlet being opposite each other; the outlet of the adapter air path extends to the second side wall to form an air path outlet, and the inlet of the air jet channel extends to the fifth side wall to form an air jet inlet, with the air path outlet and the air jet inlet being opposite each other.

[0021] Furthermore, a valve body docking groove is provided on the third side wall, the adapter adhesive path 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 conduction or blocking of the adapter adhesive path by the movement of the valve stem.

[0022] Furthermore, the third sidewall has one or more fifth connection holes, and the valve body has one or more sixth connection holes. The fifth connection holes and the sixth connection holes are connected to each other, and a third connector is detachably installed through the fifth connection hole and the sixth connection hole.

[0023] Furthermore, the fifth and sixth connecting holes are threaded holes, and the third connecting member is a screw. The screw of the third connecting member is threaded into the threaded holes of the fifth and sixth connecting holes, realizing a detachable connection between the valve body and the gas-fuel adapter seat, thereby facilitating the disassembly and replacement of the valve body and realizing modular installation of the valve body.

[0024] 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 nozzle from the glue-air adapter for dispensing.

[0025] 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.

[0026] 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.

[0027] Furthermore, the gas delivery channel includes a first gas channel, a second gas channel, a third gas channel, and a fourth gas channel. The inlet of the first gas channel is connected to the air inlet, the outlet of the first gas channel is connected to the inlet of the second gas channel, the outlet of the second gas channel is connected to the inlet of the third gas channel, the outlet of the third gas channel is connected to the inlet of the fourth gas channel, and the outlet of the fourth gas channel is connected to the gas inlet. A spiral heater is provided in the second gas channel.

[0028] Furthermore, the spiral heater includes a heating inner core and a heat-conducting sleeve, the heat-conducting sleeve being fitted over the heating inner core, and a spiral groove being formed on the outer wall of the heat-conducting sleeve.

[0029] The beneficial effects of this utility model are as follows: Compared with the prior art, the glue-gas adapter can be detachably installed on the first side wall of the glue gun body, and the glue nozzle and valve body can be detachably installed on the second and third side walls of the glue-gas adapter, respectively. This enables modular assembly of the valve body, glue nozzle, and glue-gas adapter, and allows for flexible replacement of the valve body, glue nozzle, and glue-gas adapter, achieving flexible adjustment. This not only improves the application scenarios but also reduces inventory and usage costs. Attached Figure Description

[0030] Figure 1 This is an isometric view of a glue spray gun.

[0031] Figure 2 This is an exploded view of a glue gun.

[0032] Figure 3 This is the front view of the glue gun.

[0033] Figure 4 yes Figure 3 Cross-sectional view at point AA.

[0034] Figure 5 yes Figure 3 Cross-sectional view at point BB.

[0035] Figure 6 yes Figure 3 Cross-sectional view at point CC.

[0036] Figure 7 yes Figure 3 Cross-sectional view at point DD.

[0037] Figure 8 It is a cross-sectional view of the glue spray head and glue-air adapter in their assembled state.

[0038] Figure 9 This is a schematic diagram of the adhesive spray nozzle.

[0039] Figure 10 This is a schematic diagram of a spiral heater.

[0040] Figure 11 This is a structural schematic diagram of a continuous valve body.

[0041] Figure 12 This is a schematic diagram of the structure of a reverse-pulse intermittent valve body.

[0042] Figure 13 This is a schematic diagram of the S-shaped nozzle.

[0043] Figure 14 This is a schematic diagram of a spiral nozzle.

[0044] In the diagram: 1. Main body of the glue gun; 11. Glue inlet; 12. Air inlet; 13. Glue delivery channel; 14. Gas delivery channel; 141. First air passage; 142. Second air passage; 143. Third air passage; 144. Fourth air passage; 15. First side wall; 16. First connecting hole; 17. Glue channel outlet; 18. Gas channel outlet; 19. Glue filter tank; 110. Glue filter; 111. Glue inlet connector; 112. Air inlet connector;

[0045] 2. Glue spray head; 21. Glue spray channel; 22. Glue spray nozzle; 23. Air spray channel; 24. Atomizing air nozzle; 25. Fifth side wall; 26. Fourth connecting hole; 27. Glue spray inlet; 28. Air spray inlet;

[0046] 3. Adhesive-to-gas adapter; 31. Adhesive transfer path; 32. Gas transfer path; 33. Second side wall; 34. Third side wall; 35. Fourth side wall; 36. Second connecting hole; 37. Adhesive inlet; 38. Gas inlet; 39. Third connecting hole; 310. Adhesive outlet; 311. Gas outlet; 312. Valve body mating groove; 313. Fifth connecting hole;

[0047] 4. Valve body; 41. Sixth connecting hole;

[0048] 5. Pneumatic solenoid valve; 6. First connecting piece; 7. Second connecting piece; 8. Third connecting piece; 9. Spiral heater; 91. Heating core; 92. Heat-conducting sleeve; 93. Spiral groove. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 of the present utility model and are not intended to limit the present utility model.

[0050] To achieve the above objectives, the technical solution of this utility model is as follows:

[0051] See Figure 1-14 As shown, this embodiment provides a glue gun with a convenient glue dispensing module replacement, including:

[0052] The glue gun body 1 has an adhesive inlet 11 and an air inlet 12 on its outer side wall, and an adhesive liquid delivery channel 13 for delivering hot melt adhesive and a gas delivery channel 14 for delivering atomized gas inside. The adhesive inlet 11 is connected to the adhesive liquid delivery channel 13, and the air inlet 12 is connected to the gas delivery channel 14.

[0053] The glue spray head 2 has a glue spraying channel 21 for conveying glue liquid, a glue spraying nozzle 22 for spraying glue liquid onto materials, a jet spraying channel 23 for conveying atomized gas, and an atomized gas nozzle 24 for spraying atomized gas. The glue spraying nozzle 22 is located at the outlet of the glue spraying channel 21, and the atomized gas nozzle 24 is located at the outlet of the jet spraying channel 23.

[0054] The adhesive-gas adapter 3 has an adhesive transfer path 31 for introducing liquid adhesive into the spray nozzle 2 and an air transfer path 32 for introducing atomized gas into the air inlet 12. The liquid adhesive delivery channel 13 is connected to the inlet of the spray channel 21 through the adhesive transfer path 31, and the gas delivery channel 14 is connected to the inlet of the spray channel 23 through the air transfer path 32.

[0055] Valve body 4, the valve body 4 being used to control the on / off state of the adapter rubber circuit 31;

[0056] The adhesive delivery channel 13 and the gas delivery channel 14 are separated;

[0057] The glue gun body 1 has a first sidewall 15 on one side, the glue-gas adapter 3 is detachably mounted on the first sidewall 15, the glue-gas adapter 3 has a second sidewall 33 on one side and a third sidewall 34 on the other side, the glue head 2 is detachably mounted on the second sidewall 33, and the valve body 4 is detachably mounted on the third sidewall 34.

[0058] The working principle of the glue spray gun in this application is as follows: external hot melt adhesive enters the glue spray gun body 1 through the glue inlet 11, then enters the glue transfer path 31 of the glue-air adapter 3 through the glue delivery channel 13, then enters the glue spraying channel 21 of the spray head 2 through the glue transfer path 31, and finally is sprayed onto the material to be coated with adhesive through the glue nozzle 22; external compressed gas enters the glue spray gun body 1 through the air inlet 12, then enters the glue-air adapter 32 of the glue-air adapter 3 through the gas delivery channel 14, and then enters the air jet channel 23 of the spray head 2 through the air transfer path 32. Finally, the atomizing air nozzle 24 sprays out the adhesive sprayed from the glue spray nozzle 22, blowing the adhesive into small particles so that the adhesive is evenly coated on the material. A pneumatic solenoid valve 5 is installed on the valve body 4. 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 transfer path 31. When the glue transfer path 31 is open, the adhesive can smoothly enter the glue spray head 2 for spraying. When the glue transfer path 31 is blocked, the adhesive cannot enter the glue spray head 2, thereby realizing the control of the glue spraying of the glue gun.

[0059] In this embodiment, each glue-gas adapter 3 can be equipped with one or more valve bodies 4 and spray nozzles 2. When one valve body 4 is installed, the glue-gas adapter 3 has only one glue transfer path 31, which connects to all the spray nozzles 2, and thus one valve body 4 controls the glue dispensing from all the spray nozzles 2. When multiple valve bodies 4 are installed, the glue-gas adapter 3 has multiple glue transfer paths 31. The glue transfer paths 31 can connect to the spray nozzles 2 one-to-one or one-to-many, so that one valve body 4 controls one spray nozzle 2 or one valve body 4 controls multiple spray nozzles 2. In actual products, the one-to-one or one-to-many control of the valve body 4 can be selected according to the control precision of the spray nozzles 2. The glue-gas adapter 3 can have a width of 100-500mm, etc., depending on the number of spray nozzles 2 installed.

[0060] In this embodiment, the spray nozzle 2 is either a spiral nozzle or an S-shaped nozzle. The spiral nozzle can spray out spiral-shaped glue filaments, while the S-shaped nozzle can spray out S-shaped glue filaments, adapting to different application scenarios.

[0061] In this embodiment, the valve body 4 is either a continuous valve body or a reverse-pulse intermittent valve body. The stroke and flow rate of the continuous valve body can be adjusted, while the stroke and flow rate of the reverse-pulse intermittent valve body cannot be adjusted. Both are existing technologies and can be selected according to different application scenarios.

[0062] Compared with the prior art, the advantage of this embodiment is that the glue delivery channel 13 and the gas delivery channel 14 of the glue gun body 1 are separated, which can prevent the glue from entering the gas delivery channel 14, and thus prevent the glue from contaminating the atomizing gas. Meanwhile, the glue-gas adapter 3 is detachably installed on the first side wall 15 of the glue gun body 1, and the glue nozzle 2 and valve body 4 are detachably installed on the second side wall 33 and third side wall 34 of the glue-gas adapter 3, respectively. This enables modular assembly of the valve body 4, glue nozzle 2, and glue-gas adapter 3. One glue gun body 1 can be equipped with different valve bodies 4, glue nozzle 2, and glue-gas adapter 3. The valve body 4, glue nozzle 2, and glue-gas adapter 3 can be flexibly selected as needed, achieving flexible adjustment. This not only improves application scenarios and solves the composite needs of different materials, but also reduces inventory and usage costs. When manufacturing, manufacturers can produce fewer glue gun bodies 1 and more valve bodies 4, glue nozzle 2, and glue-gas adapter 3. When purchasing, customers only need to buy one glue gun body 1 and replace it with different valve bodies 4, glue nozzle 2, and glue-gas adapter 3.

[0063] Furthermore, the adhesive-air adapter 3 has a fourth sidewall 35, which is in contact with the first sidewall 15. The first sidewall 15 has one or more first connecting holes 16, and the fourth sidewall 35 has one or more second connecting holes 36. The first connecting hole 16 and the second connecting hole 36 are connected to each other. A first connector 6 is detachably installed through the first connecting hole 16 and the second connecting hole 36.

[0064] Furthermore, the first connecting hole 16 and the second connecting hole 36 are threaded holes, and the first connecting member 6 is a screw. The screw of the first connecting member 6 is threaded into the threaded holes of the first connecting hole 16 and the second connecting hole 36, so as to realize the detachable connection between the glue and gas adapter 3 and the glue gun body 1, thereby facilitating the disassembly and replacement of the glue and gas adapter 3 and realizing the modular installation of the glue and gas adapter 3.

[0065] Furthermore, the adhesive delivery channel 13 extends to the first sidewall 15 to form an adhesive channel outlet 17, and the inlet of the adapter adhesive path 31 extends to the fourth sidewall 35 to form an adhesive path inlet 37. The adhesive channel outlet 17 is connected to the adhesive path inlet 37. The gas delivery channel 14 extends to the first sidewall 15 to form a gas channel outlet 18, and the inlet of the adapter gas path 32 extends to the fourth sidewall 35 to form a gas path inlet 38. The gas channel outlet 18 is connected to the gas path inlet 38. This structure, while ensuring that the adhesive-gas adapter 3 is modularly assembled on the glue gun body 1, also enables communication between the adhesive delivery channel 13 and the adapter adhesive path 31, as well as between the gas delivery channel 14 and the adapter gas path 32, thereby allowing the adhesive and atomized gas from the glue gun body 1 to be introduced into the adhesive-gas adapter 3.

[0066] Furthermore, one side of the spray nozzle 2 has a fifth sidewall 25, which is attached to the second sidewall 33. The second sidewall 33 has one or more third connecting holes 39, and the fifth sidewall 25 has one or more fourth connecting holes 26. The third connecting holes 39 and the fourth connecting holes 26 are connected to each other. A second connector 7 is detachably installed through the third connecting holes 39 and the fourth connecting holes 26.

[0067] Furthermore, the third connecting hole 39 and the fourth connecting hole 26 are threaded holes, and the second connecting member 7 is a screw. The screw of the second connecting member 7 is threaded into the threaded holes of the third connecting hole 39 and the fourth connecting hole 26, so as to realize the detachable connection between the glue spray head 2 and the glue air adapter 3, thereby facilitating the disassembly and replacement of the glue spray head 2 and realizing the modular installation of the glue spray head 2.

[0068] Furthermore, the outlet of the adhesive transfer path 31 extends to the second sidewall 33 to form an adhesive outlet 310, and the inlet of the adhesive spraying channel 21 extends to the fifth sidewall 25 to form an adhesive spraying inlet 27. The adhesive outlet 310 is connected to the adhesive spraying inlet 27. The outlet of the air transfer path 32 extends to the second sidewall 33 to form an air outlet 311, and the inlet of the air spraying channel 23 extends to the fifth sidewall 25 to form an air spraying inlet 28. The air outlet 311 is connected to the air spraying inlet 28. This structure, while ensuring the modular assembly of the adhesive spraying head 2 onto the adhesive-air transfer base 3, also enables communication between the adhesive transfer path 31 and the adhesive spraying channel 21, as well as between the air transfer path 32 and the air spraying channel 23. This allows the adhesive liquid and atomizing gas from the adhesive gun body 1 to be introduced into the adhesive spraying head 2 via the adhesive-air transfer base 3.

[0069] Furthermore, a valve body docking groove 312 is provided on the third sidewall 34. The adapter adhesive path 31 passes through the valve body docking groove 312, and the lower part of the valve body 4 is installed in the valve body docking groove 312, so that the adapter adhesive path 31 can be opened or closed by the movement of the valve stem. With the above structure, the opening or closing of the adapter adhesive path 31 can be controlled by the valve body 4. When it is open, the adhesive can enter the spray head 2 for dispensing; when it is closed, the adapter adhesive path 31 is disconnected, and the spray head 2 stops dispensing adhesive.

[0070] Furthermore, the third sidewall 34 has one or more fifth connecting holes 313, and the valve body 4 has one or more sixth connecting holes 41. The fifth connecting holes 313 and the sixth connecting holes 41 are connected to each other, and a third connecting member 8 is detachably installed through the fifth connecting holes 313 and the sixth connecting holes 41.

[0071] Furthermore, the fifth connecting hole 313 and the sixth connecting hole 41 are threaded holes, and the third connecting member 8 is a screw. The screw of the third connecting member 8 is threaded into the threaded holes of the fifth connecting hole 313 and the sixth connecting hole 41, so as to realize the detachable connection between the valve body 4 and the gas-glue adapter 3, thereby facilitating the disassembly and replacement of the valve body 4 and realizing the modular installation of the valve body 4.

[0072] Furthermore, the glue gun body 1 is also provided with a glue filter tank 19, and a glue filter 110 is installed in the glue filter tank 19. The glue filter 110 is located on the path of the glue delivery channel 13. After the glue enters the glue delivery channel 13 from the glue inlet 11, it is filtered by the glue filter 110 and then enters the glue nozzle 2 from the glue-air adapter 3 for glue dispensing.

[0073] Furthermore, an adhesive inlet 11 is installed on the adhesive inlet 11, and the adhesive inlet 111 can be connected to an external adhesive inlet device to realize adhesive inlet.

[0074] Furthermore, an air inlet connector 112 is also installed on the air inlet 12, which can be connected to an external air source to achieve air intake.

[0075] Furthermore, the gas delivery channel 14 includes a first gas channel 141, a second gas channel 142, a third gas channel 143, and a fourth gas channel 144. The inlet of the first gas channel 141 is connected to the air inlet 12, the outlet of the first gas channel 141 is connected to the inlet of the second gas channel 142, the outlet of the second gas channel 142 is connected to the inlet of the third gas channel 143, the outlet of the third gas channel 143 is connected to the inlet of the fourth gas channel 144, and the outlet of the fourth gas channel 144 is connected to the gas inlet 38. A spiral heater 9 is provided inside the second gas channel 142.

[0076] Furthermore, the spiral heater 9 includes a heating inner core 91 and a heat-conducting sleeve 92. The heat-conducting sleeve 92 is sleeved on the heating inner core 91, and a spiral groove 93 is formed on the outer wall of the heat-conducting sleeve 92.

[0077] In this application, when compressed gas enters the second air passage 142 from the air inlet 12 and the first air passage 141, it can be heated by the spiral heater 9 to form a spiral atomized gas. The spiral heater 9 can extend the heating path of the compressed gas and increase the heating time of the compressed gas, thereby ensuring that the temperature of the atomized gas is more stable and closer to the temperature of the adhesive, which can improve the atomization efficiency and make the molding effect of the adhesive better.

[0078] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A glue gun with a conveniently replaceable glue dispensing module, comprising: The glue gun body has an adhesive inlet and an air inlet on its outer side wall, and an adhesive delivery channel and a gas delivery channel inside. The adhesive inlet is connected to the adhesive delivery channel, and the air inlet is connected to the gas delivery channel. A glue spray head, the glue spray head having a glue spraying channel, a glue spraying nozzle, a jet spraying channel and an atomizing gas nozzle, the glue spraying nozzle being located at the outlet of the glue spraying channel and the atomizing gas nozzle being located at the outlet of the jet spraying channel; An adhesive-gas adapter has an adhesive transfer path for introducing liquid adhesive into a spray nozzle and an air transfer path for introducing atomizing gas into an air inlet. The liquid adhesive delivery channel is connected to the inlet of the spray nozzle channel via the adhesive transfer path, and the gas delivery channel is connected to the inlet of the spray nozzle channel via the air transfer path. Valve body, the valve body being used to control the on / off state of the adapter rubber circuit; The invention is characterized in that one side of the glue gun body has a first sidewall, the glue-gas adapter is detachably mounted on the first sidewall, one side of the glue-gas adapter has a second sidewall, the other side has a third sidewall, the glue nozzle is detachably mounted on the second sidewall, and the valve body is detachably mounted on the third sidewall.

2. The glue gun with a convenient glue dispensing module replacement as described in claim 1, characterized in that, The adhesive-air adapter has a fourth sidewall that fits against the first sidewall. The first sidewall has one or more first connecting holes, and the fourth sidewall has one or more second connecting holes. The first connecting holes and the second connecting holes are connected to each other. A first connector is detachably installed through the first connecting hole and the second connecting hole.

3. A glue gun with a convenient glue dispensing module replacement as described in claim 2, characterized in that, The adhesive delivery channel extends to the first side wall to form an adhesive channel outlet, and the inlet of the transfer adhesive path extends to the fourth side wall to form an adhesive path inlet. The adhesive channel outlet is connected to the adhesive path inlet. The gas delivery channel extends to the first side wall to form a gas channel outlet, the inlet of the transfer gas path extends to the fourth side wall to form a gas path inlet, and the gas channel outlet is connected to the gas path inlet.

4. A glue gun with a convenient glue dispensing module replacement as described in claim 1, characterized in that, The spray nozzle has a fifth sidewall on one side, which is attached to the second sidewall. The second sidewall has one or more third connecting holes, and the fifth sidewall has one or more fourth connecting holes. The third connecting holes and the fourth connecting holes are connected to each other, and a second connector is detachably installed through the third connecting holes and the fourth connecting holes.

5. A glue gun with a convenient glue dispensing module replacement as described in claim 4, characterized in that, The outlet of the transfer adhesive path extends to the second side wall to form an adhesive path outlet, and the inlet of the spray adhesive channel extends to the fifth side wall to form a spray adhesive inlet. The adhesive path outlet is connected to the spray adhesive inlet. The outlet of the transition air passage extends to the second side wall to form an air passage outlet, and the inlet of the jet channel extends to the fifth side wall to form a jet inlet. The air passage outlet is connected to the jet inlet.

6. A glue gun with a convenient glue dispensing module replacement as described in claim 1, characterized in that, A valve body docking groove is provided on the third side wall. The adapter adhesive circuit passes through the valve body docking groove. The lower part of the valve body is installed in the valve body docking groove so that the adapter adhesive circuit can be opened or blocked by the movement of the valve stem.

7. A glue gun with a convenient glue dispensing module replacement as described in claim 6, characterized in that, The third sidewall has one or more fifth connection holes, and the valve body has one or more sixth connection holes. The fifth connection holes and the sixth connection holes are connected to each other, and a third connector is detachably installed through the fifth connection hole and the sixth connection hole.

8. A glue gun with a convenient glue dispensing module replacement as described in claim 3, characterized in that, The gas delivery channel includes a first gas channel, a second gas channel, a third gas channel, and a fourth gas channel. The inlet of the first gas channel is connected to the air inlet, the outlet of the first gas channel is connected to the inlet of the second gas channel, the outlet of the second gas channel is connected to the inlet of the third gas channel, the outlet of the third gas channel is connected to the inlet of the fourth gas channel, and the outlet of the fourth gas channel is connected to the gas inlet. A spiral heater is installed in the second gas channel.

9. A glue gun with a convenient glue dispensing module replacement as described in claim 8, characterized in that, The spiral heater includes a heating inner core and a heat-conducting sleeve. The heat-conducting sleeve is fitted over the heating inner core, and a spiral groove is formed on the outer wall of the heat-conducting sleeve.

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