Glue gun heating device

Abstract

The utility model discloses a glue gun heating device. The glue gun heating device comprises a bracket, a heating element and a locking limiter, the support comprises a supporting cylinder used for supporting the glue gun. The heating element is arranged in the supporting barrel and is attached to the inner wall of the supporting barrel, and the heating element is used for surrounding at least one part of a glue barrel of the glue gun in the circumferential direction; the locking limiter is located at one end of the supporting barrel in the axial direction, the end, in the axial direction of the supporting barrel, of the locking limiter is used for limiting movement of the glue gun relative to the supporting barrel, and the other end of the locking limiter is used for clamping the heating element and the supporting barrel so as to fix the heating element and the supporting barrel. According to the scheme, the glue gun is supported through the supporting barrel on the bracket, and the heating element in the supporting barrel is used for heating a glue product in a glue barrel of the glue gun placed in the supporting barrel, so that the glue gun can be used while being taken, and the heating efficiency of the glue gun is improved.

Description

Technical Field

[0001] This application relates to the field of heating technology, and in particular to a heating device for glue guns. Background Technology

[0002] In the automobile manufacturing process, when manually applying adhesive on the welding line, the adhesive becomes viscous and difficult to work with when the indoor temperature is below 15°C in winter. Therefore, the adhesive needs to be heated before application to soften it and accelerate its flow.

[0003] Currently, the most common heating methods are oven baking and immersion in hot water. However, oven heating is cumbersome, requiring the glue to be removed from the glue gun and placed in the oven (ovens are usually distributed by work group, and some glue application stations are far from the oven, making them inconvenient to access). Immersion in hot water requires repeatedly changing the hot water to maintain the heating temperature, and it also carries the risk of burns. Neither of these methods is conducive to improving the efficiency of on-site operations. Utility Model Content

[0004] This application provides a glue gun heating device to solve the problem that low ambient temperature leads to difficulties in glue application, low glue application efficiency, and thus affects the glue application cycle of the welding line.

[0005] To solve the above-mentioned technical problems, the technical solution provided in this application is: a glue gun heating device, including a bracket, a heating element, and a locking limiter; the bracket includes a support cylinder for supporting the glue gun; the heating element is disposed inside the support cylinder and is fitted against the inner wall of the support cylinder, the heating element is used to surround at least a portion of the glue gun in the circumferential direction; the locking limiter is located at one end of the support cylinder in the axial direction, one end of the locking limiter along the axial direction of the support cylinder is used to restrict the movement of the glue gun relative to the support cylinder, and the other end is used to clamp the heating element and the support cylinder to fix the heating element and the support cylinder.

[0006] According to one embodiment of this application, the locking limiter includes a locking part and a limiting part arranged along the axial direction of the support cylinder. The locking part includes two clamping pieces arranged radially spaced along the support cylinder. An opening is formed between the two clamping pieces for inserting the cylinder wall of the support cylinder and the heating element. The cylinder wall of the support cylinder and the heating element are clamped therein by the two clamping pieces to achieve relative fixation between the heating element and the support cylinder.

[0007] According to one embodiment of this application, the locking limiter further includes a locking member. A locking hole is provided on the clamping piece located outside the support cylinder. The locking member passes through the locking hole and abuts against the outer wall of the support cylinder to clamp the cylinder wall of the support cylinder and the heating element.

[0008] According to one embodiment of this application, the support cylinder is inclined relative to the height direction of the bracket; and / or, both ends of the support cylinder are open in the axial direction, the support cylinder is provided with a notch, the notch is located on the side of the support cylinder away from the bracket, and the notch communicates with the opening of the end of the support cylinder connected to the locking limiter.

[0009] According to one embodiment of this application, the heating element includes a silicone heating element.

[0010] According to one embodiment of this application, the glue gun heating device further includes a heat-insulating film, which is located between the support cylinder and the silicone heating sheet along the radial direction of the support cylinder.

[0011] According to one embodiment of this application, the glue gun heating device further includes a glue container and a glue support frame for mounting the glue container to a bracket; the two opposite ends of the support cylinder along the axial direction are a first end and a second end, a locking limiter is located at the first end, the glue container is located below the support cylinder, the glue container has an opening and the opening of the glue container faces the second end of the support cylinder, so as to collect excess glue overflowing from the glue gun nozzle.

[0012] According to one embodiment of this application, the bracket further includes a bracket body, a support cylinder is disposed on the top of the bracket body, the bracket body includes a fixed column and an adjusting column, the adjusting column can slide relative to the fixed column along the height direction of the bracket body and be locked to the bracket body.

[0013] According to one embodiment of this application, the heating element is connected to a wire, and a temperature controller for adjusting the heating temperature of the silicone heating element is provided on the wire.

[0014] According to one embodiment of this application, both ends of the support cylinder are open in the axial direction. The support cylinder has a notch located on the side of the support cylinder away from the bracket, and the notch communicates with the opening of the end of the support cylinder connected to the locking limiter. The support cylinder has an exposure port communicating with the notch, which is used to expose a part of the heating element for connecting wires.

[0015] The beneficial effects of this application are:

[0016] The glue gun heating device provided in this application supports the glue gun through a support cylinder on the bracket. The heating element inside the support cylinder is used to heat the glue in the glue gun cartridge placed inside the support cylinder, which can be used immediately. It effectively avoids the waste of time and resources caused by heating with an oven or hot water in related technologies, improves the heating efficiency of the glue gun, and sets a locking limiter, which can fix the heating element and the support cylinder on the one hand, and limit the glue gun on the other hand, thereby achieving relative fixation between the glue gun and the support cylinder. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the glue gun heating device provided in this application;

[0019] Figure 2 yes Figure 1 A schematic diagram of the exploded structure of the glue gun heating device;

[0020] Figure 3 yes Figure 2 A three-dimensional structural diagram of the locking limiter in the glue gun heating device;

[0021] Figure 4 yes Figure 2 A magnified view of the bracket at the support cylinder in the glue gun heating device.

[0022] Explanation of reference numerals in the attached figures:

[0023] Glue gun heating device 100;

[0024] 110 bracket, 111 support cylinder, 111A first end, 111B second end, 1111 notch, 1112 exposed opening, 112 bracket body, 112 fixed column, 1121 adjusting column;

[0025] Heating element 120;

[0026] Locking limiter 130, locking part 131, clamping piece 1311, opening 13110, locking element 1312, limiting part 132;

[0027] Glue gun 140, glue cartridge 141, handle 142, glue nozzle 143;

[0028] Insulation film 150;

[0029] Glue holding mechanism 160, glue holding container 161, glue holding support frame 162;

[0030] Wire 170, temperature controller 171, power plug 172. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] This application provides a glue gun heating device, as shown in the reference. Figure 1 and Figure 2 , Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the glue gun heating device provided in this application. Figure 2 yes Figure 1 An exploded view of the heating device for a glue gun is shown below. In one embodiment, the heating device 100 includes a bracket 110, a heating element 120, and a locking limiter 130. The bracket 110 includes a support cylinder 111 for supporting a glue gun 140. The heating element 120 is disposed inside the support cylinder 111 and is fitted against the inner wall of the support cylinder 111. The heating element 120 is used to surround at least a portion of the glue cylinder 141 of the glue gun 140 in the circumferential direction. The locking limiter 130 is located at one end of the support cylinder 111 in the axial direction. One end of the locking limiter 130 along the axial direction of the support cylinder 111 is used to restrict the movement of the glue gun 140 relative to the support cylinder 111, and the other end is used to clamp the heating element 120 and the support cylinder 111 to fix the heating element 120 and the support cylinder 111.

[0034] The glue gun 140 typically includes a handle 142 and a glue cartridge 141. The glue cartridge 141 contains the glue. The glue cartridge 141 can be made of a heat-conducting material such as iron so that when the heating element 120 heats up, the heat is transferred to the glue cartridge 141 of the glue gun 140, thereby heating the glue inside the glue gun 140 on the inside of the heating element 120. The locking limiter 130 can abut against the handle 142 of the glue gun 140 to limit the glue gun 140 in the axial direction of the support cylinder 111, thereby restricting the movement of the glue gun 140 relative to the support cylinder 111 in the axial direction of the support cylinder 111.

[0035] As can be seen, the glue gun heating device 100 provided in this application supports the glue gun 140 through the support cylinder 111 on the bracket 110. The heating element 120 in the support cylinder 111 is used to heat the glue in the glue cartridge 141 of the glue gun 140 placed in the support cylinder 111, so that the glue gun 140 can be used immediately. This effectively avoids the waste of time and resources caused by heating with an oven or hot water in related technologies, and improves the heating efficiency of the glue gun 140. In addition, the glue gun heating device 100 of this application is equipped with a locking limiter 130, which can fix the heating element 120 and the support cylinder 111 on the one hand, and limit the glue gun 140 on the other hand, thereby achieving relative fixation between the glue gun 140 and the support cylinder 111.

[0036] The glue gun heating device 100 provided in this application is actually used to heat and keep the glue gun 140 warm when it is not in use, so that the glue inside the glue gun 140 remains in a flowing state. In actual glue application, after the glue gun 140 is removed from the glue gun heating device 100, the glue application process usually lasts only a few seconds. During the glue application process, the glue inside the glue gun 140 can remain in a flowing state and will not cool down in a short time, causing difficulties in glue application.

[0037] It should be noted that when heating the glue inside the glue cartridge 141 of the glue gun 140, the glue cartridge 141 of the glue gun 140 is heated by the heating element 120. Therefore, the glue cartridge 141 of the glue gun 140 can directly contact the heating element 120 to achieve heat conduction. Alternatively, a heat transfer medium can be provided between the glue cartridge 141 of the glue gun 140 and the heating element 120 to achieve heat conduction. The glue cartridge 141 of the glue gun 140 can also be heated without contact with the heating element 120, achieving heating through heat radiation or heat convection. Clearly, heating the glue cartridge 141 of the glue gun 140 through contact with the heating element 120 to achieve heat conduction is more efficient.

[0038] Please see Figure 3 , Figure 3 yes Figure 2 A three-dimensional structural schematic diagram of the locking limiter 130 in the glue gun heating device 100. In one embodiment, the locking limiter 130 includes a locking part 131 and a limiting part 132 arranged axially along the support cylinder 111. The locking part 131 is used to fix the heating element 120 and the support cylinder 111. The end of the limiting part 132 away from the locking part 131 along the axial direction of the support cylinder 111 is used to abut against the handle 142 of the glue gun 140.

[0039] The locking part 131 includes two clamping pieces 1311 arranged radially spaced along the support cylinder 111. An opening 13110 is formed between the two clamping pieces 1311 for inserting the cylinder wall of the support cylinder 111 and the heating element 120. The cylinder wall of the support cylinder 111 and the heating element 120 are clamped together by the two clamping pieces 1311 to achieve relative fixation between the heating element 120 and the support cylinder 111.

[0040] It is understandable that in order for the two clamping pieces 1311 to better clamp the wall of the support cylinder 111 and the heating element 120, the clamping pieces 1311 should fit as close as possible to the outer wall of the support cylinder 111, and the clamping pieces 1311 should also fit as close as possible to the heating element 120. That is, when the support cylinder 111 and the heating element 120 are cylindrical, the surface of the clamping piece 1311 that fits against the outer wall of the support cylinder 111 and the surface of the clamping piece 1311 that fits against the heating element 120 are also arc-shaped surfaces.

[0041] Continue reading Figure 3 In one embodiment, the locking limiter 130 further includes a locking member 1312. A locking hole is provided on the clamping piece 1311 located outside the support cylinder 111. The locking member 1312 passes through the locking hole and abuts against the outer wall of the support cylinder 111 to clamp the cylinder wall of the support cylinder 111 and the heating element 120. The locking member 1312 can be a bolt, screw, etc. Correspondingly, the locking hole on the clamping piece 1311 located outside the support cylinder 111 is a threaded hole. The support cylinder 111 and the heating element 120 can be quickly clamped by tightening the bolt or screw. In this embodiment, the heating element 120 can be fixed inside the support cylinder 111 by tightening the bolt or screw. In other embodiments, clamping can also be achieved by the elasticity of the two clamping pieces 1311, or by other methods such as using the magnetic attraction of a magnet.

[0042] Combination Figure 4 , Figure 4 yes Figure 2The image shows a partial enlarged view of the bracket at the support cylinder in the glue gun heating device. In one embodiment, both ends of the support cylinder 111 are open in the axial direction. At least one end of the support cylinder 111 connected to the locking limiter 130 is open, allowing the glue gun 140 to be inserted into the support cylinder 111 through this opening. The end away from the locking limiter 130 can be open or closed. The two opposite ends of the support cylinder 111 in the axial direction are a first end 111A and a second end 111B, respectively. The support cylinder 111 has a notch 1111, which is located on the side of the support cylinder 111 away from the bracket 110, that is, the notch 1111 is located at the top of the support cylinder 111, and the notch 1111 communicates with the opening 13110 of the end of the support cylinder 111 connected to the locking limiter 130. In this embodiment, a notch 1111 is provided on the support cylinder 111. Therefore, when placing the glue gun 140, the glue cartridge 141 of the glue gun 140 can be inserted into or removed from the support cylinder 111 through the notch 1111, making it easier to place and remove the glue gun 140. Corresponding to the shape of the support cylinder 111, the shape of the heating element 120 can be set to be the same as the shape of the support cylinder 111, so that the heating element 120 fits the support cylinder 111 better. That is, the heating element 120 is also a cylindrical structure with a notch. In this case, the heating element 120 only surrounds a portion of the circumferential direction of the glue cartridge 141 of the glue gun 140.

[0043] It is understandable that, since the glue cartridge 141 of the glue gun 140 needs to be picked up and put in through the notch 1111 on the support cylinder 111, the width of the notch 1111 in the radial direction of the support cylinder 111 should be greater than or equal to the width of the glue cartridge 141 of the glue gun 140. Furthermore, since the glue gun 140 is limited by the locking limiter 130 to fix the glue gun 140 relative to the support cylinder 111, the notch 1111 on the support cylinder 111 can extend from the first end 111A of the support cylinder 111 towards the second end 111B. The notch 1111 can extend to the second end 111B that penetrates the support cylinder 111, or it can extend to the second end 111B that does not penetrate the support cylinder 111. It is also understandable that when the notch 1111 on the support cylinder 111 is... Figure 1 , Figure 2 as well as Figure 4 As shown, when the support cylinder 111 extends from the first end 111A to the second end 111B that does not penetrate the support cylinder 111, the support cylinder 111 is still a complete cylindrical structure in the part near the second end 111B. Therefore, it can limit the glue gun 140's glue cartridge 141 in the radial direction of the support cylinder 111, and prevent the support cylinder 111 from falling out of the notch 1111.

[0044] In other embodiments, the support cylinder 111 may not have a notch 1111, that is, the support cylinder 111 is a whole cylinder. When the glue gun 140 is placed on the support cylinder 111, the glue gun 140 can be inserted into the support cylinder 111 from the first end 111A along the axial direction of the support cylinder 111. Corresponding to the shape of the support cylinder 111, the heating element 120 is also a whole cylinder to better fit the support cylinder 111. In this case, the heating element 120 surrounds the entire circumferential part of the glue cylinder 141 of the glue gun 140, which can realize all-round heating of the glue in the glue cylinder 141 of the glue gun 140.

[0045] Furthermore, the support cylinder 111 is provided with an exposure port 1112 communicating with the notch 1111. The exposure port 1112 is used to expose a portion of the heating element 120 for connecting the wire 170. In this embodiment, the wire 170 is used to connect to a power source to supply power to the heating element 120. Since the heating element 120 needs to be connected to the wire 170 for power supply, and the heating element 120 is located inside the support cylinder 111, the exposure port 1112 provided on the support cylinder 111 in this embodiment can expose the wiring portion of the heating element 120, thereby facilitating the connection of the heating element 120 to the wire 170.

[0046] In one embodiment, the support cylinder 111 is inclined relative to the height of the bracket 110. Specifically, the first end 111A of the support cylinder 111 is higher than the second end 111B. With this configuration, when the glue gun 140 is placed on the support cylinder 111, after it passes through the first end 111A of the support cylinder 111, the support cylinder 111 provides more stable support for the glue gun 140, and the glue gun 140 is less likely to fall off.

[0047] In one embodiment, the heating element 120 includes a silicone heating sheet. The silicone heating sheet is a flexible electric heating film element composed of high-temperature resistant, high-thermal-conductivity, high-insulation, and high-strength silicone rubber, high-temperature resistant fiber-reinforced materials, and a metal heating film circuit. It is composed of two sheets of glass fiber cloth and double-layered silicone pressed silicone fiber cloth. Because it is a thin sheet product (standard thickness 1.5mm), it has excellent flexibility and can make complete and tight contact with the object being heated. Silicone heating sheets are a well-known technology in the heating field, and their structure, working principle, and function will not be described in detail here. In other embodiments, the heating element 120 can also adopt other structures, such as sheet-like or strip-like structures, or even a rigid heating element 120, as long as it can function as a heating glue gun 140. This application does not limit the specific structure and heating method of the heating element 120.

[0048] See again Figure 2In one embodiment, the glue gun heating device 100 further includes a heat-insulating film 150, which is sleeved between the support cylinder 111 and the silicone heating sheet along the radial direction of the support cylinder 111. In this embodiment, the heat-insulating film 150 can play a heat-insulating role and reduce heat loss. The shape and size of the heat-insulating film 150 can be the same as the heating element 120 to achieve complete adhesion between the two. The heat-insulating film 150 can be, but is not limited to, tin foil heat-insulating film. Furthermore, since the heating element 120 needs to be connected to the wire 170, and the heat-insulating film 150 is sleeved on the heating element 120, in order to avoid the heat-insulating film 150 blocking the wiring parts on the heating element 120, the heat-insulating film 150 is also provided with an exposure opening 1112 on the corresponding support cylinder 111.

[0049] When installing the heating element 120 and the insulation film 150, the heating element 120 and the insulation film 150 can be put together first, and then the whole thing can be placed into the support cylinder 111. The heating element 120 and the insulation film 150 can be fixed in the support cylinder 111 by one end of the locking limiter 130.

[0050] See again Figure 1 and Figure 2 In one embodiment, the heating element 120 is connected to a wire 170, and the wire 170 is equipped with a temperature controller 171 for adjusting the heating temperature of the silicone heating pad. When the heating element 120 is a silicone heating pad, the silicone heating pad itself has a temperature sensor that can detect the heating temperature of the silicone heating pad. When the detected heating temperature of the silicone heating pad exceeds a preset value, the temperature controller 171 can adjust the heating temperature of the silicone heating pad to prevent the heating temperature of the silicone heating pad from becoming too high, greatly improving the safety of the glue gun heating device 100, ensuring that the glue in the glue gun 140 does not harden due to overheating, and eliminating cost waste caused by the inability to apply glue. Depending on the heating performance of the glue, the heating range of the temperature controller 171 can be selected as 0-40℃.

[0051] Furthermore, the other end of the wire 170 is connected to the power plug 172, which is used to connect to a power source to supply power to the heating element 120. The power plug 172 can be equipped with a 220V leakage protection device to ensure electrical safety.

[0052] See again Figure 1 and Figure 2In one embodiment, the bracket 110 further includes a bracket body 112, with a support cylinder 111 disposed on the top of the bracket body 112. The bracket body 112 includes a fixed column 1121 and an adjusting column 1122. The adjusting column 1122 can slide relative to the fixed column 1121 along the height direction of the bracket body 112 and is locked to the bracket body 112 by fasteners such as bolts. In this embodiment, the height of the bracket 110 is adjustable, and the overall height of the bracket 110 can be adjusted according to the user's height and other conditions to facilitate the placement and removal of the glue gun 140 inside the support cylinder 111 at the top of the bracket 110.

[0053] See again Figure 1 and Figure 2 In one embodiment, the glue gun heating device 100 further includes a glue-holding mechanism 160. The glue-holding mechanism 160 includes a glue-holding container 161 and a glue-holding support frame 162 for mounting the glue-holding container 161 to the bracket 110. The glue-holding container 161 is located below the support cylinder 111 and has an upward-facing opening facing the second end 111B of the support cylinder 111, so as to collect excess glue overflowing from the glue nozzle 143 of the glue gun 140. In this embodiment, the glue gun heating device 100 is provided with a glue-holding container 161, which can collect the glue overflowing from the glue nozzle 143 of the glue gun 140 during heating and use, preventing contamination of the glue application station.

[0054] Specifically, the glue-holding support frame 162 can be fixed to the bracket 110 (specifically, the bracket body 112 of the bracket 110) using bolts or other fasteners. When installing the glue-holding support frame 162, first adjust the height of the glue-holding support frame 162 to a reasonable range (directly below the glue nozzle 143 of the glue gun 140, so that the glue overflowing from the glue nozzle 143 can enter the glue-holding container 161 installed on the glue-holding support frame 162). The glue-holding container 161 is detachably installed on the glue-holding support frame 162. When a certain amount of glue has been collected in the glue-holding container 161, the glue-holding container 161 can be removed from the glue-holding support frame 162, the collected glue in the glue-holding container 161 can be removed, and then the glue-holding container 161 can be reinstalled back on the glue-holding support frame 162.

[0055] The terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of those features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of the components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0056] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A glue gun heating device, characterized in that, include: A support frame, including a support cylinder for supporting the glue gun; A heating element is disposed inside the support cylinder and is fitted to the inner wall of the support cylinder. The heating element is used to surround at least a portion of the glue gun's glue cylinder in the circumferential direction. A locking limiter is located at one end of the support cylinder along the axial direction. One end of the locking limiter along the axial direction of the support cylinder is used to restrict the movement of the glue gun relative to the support cylinder, and the other end is used to clamp the heating element and the support cylinder to fix the heating element and the support cylinder.

2. The glue gun heating device according to claim 1, characterized in that, The locking limiter includes a locking part and a limiting part arranged along the axial direction of the support cylinder. The locking part includes two clamping pieces arranged radially spaced along the support cylinder. An opening is formed between the two clamping pieces for the insertion of the cylinder wall of the support cylinder and the heating element. The cylinder wall of the support cylinder and the heating element are clamped therein by the two clamping pieces to achieve relative fixation between the heating element and the support cylinder.

3. The glue gun heating device according to claim 2, characterized in that, The locking limiter also includes a locking member. The clamping piece located outside the support cylinder has a locking hole. The locking member passes through the locking hole and abuts against the outer wall of the support cylinder to clamp the cylinder wall of the support cylinder and the heating element.

4. The glue gun heating device according to claim 1, characterized in that, The support cylinder is inclined relative to the height direction of the bracket; And / or, both ends of the support cylinder are open in the axial direction, the support cylinder is provided with a notch, the notch is located on the side of the support cylinder away from the bracket, and the notch communicates with the opening of the end of the support cylinder connected to the locking limiter.

5. The glue gun heating device according to claim 1, characterized in that, The heating element includes a silicone heating element.

6. The glue gun heating device according to claim 5, characterized in that, The glue gun heating device also includes a heat-insulating film, which is located between the support cylinder and the silicone heating sheet along the radial direction of the support cylinder.

7. The glue gun heating device according to claim 1, characterized in that, The glue gun heating device also includes a glue container and a glue support frame for mounting the glue container to the bracket; The support cylinder has two opposite ends along the axial direction, namely a first end and a second end. The locking limiter is located at the first end. The glue container is located below the support cylinder. The glue container has an opening and the opening of the glue container faces the second end of the support cylinder to collect excess glue overflowing from the glue gun nozzle.

8. The glue gun heating device according to claim 1, characterized in that, The bracket also includes a bracket body, and the support cylinder is disposed on the top of the bracket body. The bracket body includes a fixed column and an adjusting column. The adjusting column can slide relative to the fixed column along the height direction of the bracket body and be locked to the bracket body.

9. The glue gun heating device according to claim 2, characterized in that, The heating element is connected to a wire, and the wire is equipped with a temperature controller for adjusting the heating temperature of the heating element.

10. The glue gun heating device according to claim 9, characterized in that, Both ends of the support cylinder are open in the axial direction. The support cylinder has a notch located on the side of the support cylinder away from the bracket, and the notch communicates with the opening of the end of the support cylinder connected to the locking limiter. The support cylinder has an exposure port communicating with the notch, the exposure port being used to expose a portion of the heating element for connecting the wire.

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