Detachable glue gun tube

Abstract

The utility model belongs to the technical field of gluing, and relates to a detachable glue gun tube, which comprises an extension tube, a gun head and a pressing cap nut, the gun head is in threaded connection with one end of the extension tube, the pressing cap nut is sleeved on the other end of the extension tube, a spiral mounting groove is arranged on the outer wall of the extension tube, a heating wire is arranged in the mounting groove, and the heating wire is connected with the gun head through a screw. The lengthened pipe is further sleeved with a heat preservation sleeve, a heat conduction structure is arranged on the inner wall of the end, close to the gun head, of the heat preservation sleeve, and one end of the heat conduction structure is attached to the joint of the lengthened pipe and the gun head. A detachable threaded connection structure is adopted between the lengthened pipe and the gun head, and replacement is convenient. The heating wire is arranged outside the lengthening pipe, heating and heat preservation can be conducted on glue in a lengthening pipe channel, the lengthening pipe is prevented from being blocked, the heat preservation effect can be achieved through the arrangement of the heat preservation sleeve, heat loss is avoided, meanwhile, the heating wire can be protected, and the heating wire is prevented from colliding with other equipment to be damaged in the glue applying process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of gluing, especially relates to a detachable glue gun pipe. BACKGROUND

[0002] The glue gun is a commonly used gluing equipment in production, which melts the glue and applies it to the surface of the workpiece to bond with other parts. The utility model patent CN209613452U provides a glue gun structure applied to the technical field of gluing production auxiliary equipment, the glue gun barrel inside the glue gun head of the glue gun structure is provided with a barrel middle hole arranged along the axial direction of the glue gun barrel, a threaded part I is arranged on the outer surface of one end of the glue gun barrel close to the end head, a threaded part II is arranged on the outer surface of the other end of the glue gun barrel close to the end head, one end of the glue gun seat is connected with the glue gun body, the other end of the glue gun seat is provided with a threaded hole II, one end of the head part is provided with a threaded hole I, and a glue outlet hole is arranged in the head part. The glue gun structure is convenient and fast to replace, when the head of the glue gun is damaged, only the damaged part needs to be replaced, so that the undamaged part can continue to be used, the cost is reduced, the uniformity of gluing during gluing is effectively guaranteed, and the gluing quality is improved. However, the hot melt glue will solidify in the channel of the gun barrel if the glue gun is not used for a certain period of time, causing the blockage of the gun barrel. SUMMARY

[0003] To solve the defect that the hot melt glue solidifies in the gun barrel and causes the blockage of the gun barrel, the application provides a detachable glue gun pipe.

[0004] To solve the above technical problems, the application adopts the following scheme: a detachable glue gun pipe, which comprises an extension pipe, a gun head and a cap nut, the gun head is threadedly connected to one end of the extension pipe, the cap nut is sleeved on the other end of the extension pipe, a spiral mounting groove is arranged on the outer wall of the extension pipe, a heating wire is arranged in the mounting groove, a heat preservation sleeve is further sleeved on the outside of the extension pipe, a heat conduction structure is arranged on the inner wall of one end of the heat preservation sleeve close to the gun head, and one end of the heat conduction structure is attached to the connection position of the extension pipe and the gun head.

[0005] In some embodiments, one end of the extension pipe close to the cap nut is provided with an outwardly extending flange, one end of the cap nut is provided with an inwardly extending limiting part, the extension pipe passes through the cap nut and is limited by the limiting part, and the cap nut has an internal thread.

[0006] In some embodiments, one end of the extension pipe close to the gun head is provided with an internal thread, and one end of the gun head is provided with an external thread.

[0007] In some embodiments, the heat-conducting structure is a metal sleeve fixed to the inner wall of the heat-insulating sleeve, and the metal sleeve extends inward at one end to form a gasket clamped at the connection between the lengthened pipe and the gun head.

[0008] In some embodiments, the heat-insulating sleeve is provided with a wire outlet hole near one end of the compression nut.

[0009] In some embodiments, the end of the gun head is conical.

[0010] In some embodiments, the channels of the lengthened pipe and the gun head are equal-diameter channels.

[0011] In some embodiments, the lengthened pipe and the gun head are made of metal, and the heat-insulating sleeve is made of silica gel or plastic.

[0012] Beneficial effects: In the present application, the detachable threaded connection structure is adopted between the lengthened pipe and the gun head, so that the lengthened pipe or the gun head can be replaced individually when damaged, and different gun head accessories can be selected according to the specific use environment. In addition, the heating wire is arranged outside the lengthened pipe in the present application, so that the heating wire can heat and insulate the colloid in the channel of the lengthened pipe, avoiding the blockage of the lengthened pipe. The heat-insulating sleeve can play a heat-insulating effect to avoid heat loss, and can also protect the heating wire from being damaged by collision with other equipment during the glue application process. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the pipe structure of the glue gun.

[0014] Figure 2 It is a schematic diagram of the heat-insulating sleeve structure.

[0015] In the figure, 1 is the lengthened pipe, 11 is the flange, 12 is the sealing ring, 2 is the gun head, 3 is the compression nut, 31 is the limiting part, 4 is the heating wire, 5 is the heat-insulating sleeve, 51 is the wire outlet hole, 6 is the metal sleeve, and 61 is the gasket. DETAILED DESCRIPTION

[0016] The present application will be further described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative changes belong to the protection scope of the present application.

[0017] For example, Figure 1 and 2As shown, the scheme adopted in the present application is as follows: a detachable glue gun tube, comprising an extension tube 1, a gun head 2 and a cap nut 3, the gun head 2 is threadedly connected at one end of the extension tube 1, the cap nut 3 is sleeved at the other end of the extension tube 1, the outer wall of the extension tube 1 is provided with a spiral mounting groove, the mounting groove is provided with a heating wire 4, the extension tube 1 is further sleeved with a heat preservation sleeve 5, the inner wall of the end of the heat preservation sleeve 5 close to the gun head 2 is provided with a heat conduction structure, and one end of the heat conduction structure is attached to the connection between the extension tube 1 and the gun head 2.

[0018] During installation, the cap nut 3 is first sleeved at one end of the extension tube 1, then the heating wire 4 is installed in the spiral mounting groove, the heat preservation sleeve 5 is then sleeved outside the heating wire 4, and finally the gun head 2 is threadedly connected at the other end of the extension tube 1, and the heat conduction structure is attached to the connection between the extension tube 1 and the gun head 2. During use, the glue gun tube of the present application can be connected to the outlet of the glue outlet device through the cap nut 3, and the glue outlet by the glue outlet device is applied to the workpiece through the extension tube 1 and the gun head 2. When the glue outlet device stops discharging glue, the heating wire 4 can be energized to heat and preserve the glue in the extension tube 1, preventing the glue from solidifying in the extension tube 1. Or when the glue has solidified in the extension tube 1, the heating wire 4 is turned on to melt the solidified glue. The installation of the mounting groove increases the contact area of the heating wire 4 and the extension tube 1, which is beneficial to heat transfer. In order to facilitate the control of the heating temperature of the heating wire 4, a heating wire 4 with a built-in K-type thermocouple can be selected, and of course a separate thermocouple can also be selected to detect the heating temperature of the heating wire 4. The threaded connection between the extension tube 1 and the gun head 2 makes it convenient to replace the gun head 2, and the heat conduction structure provided can also melt the solidified glue at the connection between the gun head 2 and the extension tube 1, facilitating replacement.

[0019] As shown in the specific embodiments, in order to facilitate the connection of the cap nut 3, in some embodiments, the extension tube 1 is provided with an outwardly extending flange 11 at one end close to the cap nut 3, the cap nut 3 is provided with an inwardly extending limiting portion 31 at one end, the extension tube 1 passes through the cap nut 3 and is limited by the limiting portion 31, and the cap nut 3 has an internal thread. Figure 1 As shown in the specific embodiments, in order to facilitate the connection of the cap nut 3, in some embodiments, the extension tube 1 is provided with an outwardly extending flange 11 at one end close to the cap nut 3, the cap nut 3 is provided with an inwardly extending limiting portion 31 at one end, the extension tube 1 passes through the cap nut 3 and is limited by the limiting portion 31, and the cap nut 3 has an internal thread.

[0020] Figure 1 ​As shown, in order to improve the versatility, in some embodiments, the lengthened pipe 1 is provided with an internal thread near one end of the gun head 2, and the gun head 2 is provided with an external thread. Generally, the gun head 2 is provided with an external thread, and the lengthened pipe 1 is provided with an internal thread to connect with the gun head 2, which can match most of the gun heads 2 on the market, so that the lengthened pipe 1 has higher applicability. In order to improve the sealing of the gun head 2 and the lengthened pipe 1, a sealing ring 12 is sleeved on the top of the external thread of the gun head 2, and the gun head 2 and the lengthened pipe 1 are sealed by the sealing ring 12 after threaded connection, so as to avoid leakage of the glue.

[0021] As shown in Figure 1 and 2 Specifically, in some embodiments, as shown in the figure, the heat-conducting structure is a metal sleeve 6, which is fixed on the inner wall of the heat preservation sleeve 5, and one end of the metal sleeve 6 extends inward to form a gasket 61, which is clamped at the connection between the lengthened pipe 1 and the gun head 2. Because the wall thickness of the internal thread of the lengthened pipe 1 is thin, it is difficult to process a mounting groove, and the metal sleeve 6 is fixedly arranged on the inner wall of the heat preservation sleeve 5, one end of the metal sleeve 6 is connected with the heating wire 4, and the other end forms the gasket 61. When installing, the gasket 61 is sleeved on the external thread joint of the gun head 2, and after the gun head 2 and the lengthened pipe 1 are tightened, the gasket 61 is clamped at the connection between the gun head 2 and the lengthened pipe 1, and then the gasket 61 can transmit the heat of the heating wire 4 to the connection between the lengthened pipe 1 and the gun head 2, preventing the gun head 2 from being difficult to disassemble due to the solidification of the glue at the connection.

[0022] As shown in Figure 1 and 2 The heat preservation sleeve 5 is provided with a wire outlet hole 51 near one end of the pressure cap nut 3. One end of the heating wire 4 passes out of the heat preservation sleeve 5 through the wire outlet hole 51, which is convenient for connecting with the external power supply.

[0023] As shown in Figure 1 Specifically, the end of the gun head 2 is conical.

[0024] As shown in Figure 1 The channels of the lengthened pipe 1 and the gun head 2 are equal-diameter channels. The equal-diameter structure of the channels of the lengthened pipe 1 and the gun head 2 is convenient for cleaning.

[0025] In order to improve the heat conductivity of the lengthened pipe 1 and the gun head 2, in some embodiments, the lengthened pipe 1 and the gun head 2 are made of metal, and the heat preservation sleeve 5 is made of silica gel or plastic. The heat preservation sleeve 5 not only has heat preservation performance, but also can protect the heating wire.

[0026] Although the present disclosure discloses as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present disclosure.

Claims

1. A dismountable glue gun tube, characterized in that, The application relates to a lengthened pipe (1), a gun head (2) and a pressure cap nut (3), the gun head (2) is threadedly connected to one end of the lengthened pipe (1), the pressure cap nut (3) is sleeved on the other end of the lengthened pipe (1), a spiral mounting groove is arranged on the outer wall of the lengthened pipe (1), a heating wire (4) is arranged in the mounting groove, a heat preservation sleeve (5) is further sleeved on the outer wall of the lengthened pipe (1), a heat conduction structure is arranged on the inner wall of one end of the heat preservation sleeve (5) close to the gun head (2), and one end of the heat conduction structure is attached to the joint of the lengthened pipe (1) and the gun head (2).

2. The disassemblable glue gun tube according to claim 1, wherein, The lengthened pipe (1) is provided with an outwardly extending flange (11) at one end close to the pressure cap nut (3), the pressure cap nut (3) is provided with an inwardly extending limiting part (31) at one end, the lengthened pipe (1) passes through the pressure cap nut (3) and is limited by the limiting part (31), and the pressure cap nut (3) has an internal thread.

3. The disassemblable glue gun tube of claim 1, wherein, The lengthened pipe (1) is provided with an internal thread at one end close to the gun head (2), and the gun head (2) is provided with an external thread at one end.

4. The disassemblable glue gun tube of claim 3, wherein, The heat conduction structure is a metal sleeve (6), the metal sleeve (6) is fixed on the inner wall of the heat preservation sleeve (5), one end of the metal sleeve (6) extends inwardly to form a gasket (61), and the gasket (61) is clamped at the joint of the lengthened pipe (1) and the gun head (2).

5. The disassemblable glue gun tube of claim 1, wherein, The heat preservation sleeve (5) is provided with a wire outlet hole (51) at one end close to the pressure cap nut (3).

6. The disassemblable glue gun tube of claim 1, wherein, The end of the gun head (2) is conical.

7. The disassemblable glue gun tube of claim 1, wherein, The channels of the lengthened pipe (1) and the gun head (2) are equal-diameter channels.

8. The disassemblable glue gun tube of claim 1, wherein, The lengthened pipe (1) and the gun head (2) are made of metal, and the heat preservation sleeve (5) is made of silica gel or plastic.

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