Polyurethane hot melt adhesive heating and melting device

Abstract

The utility model discloses a polyurethane hot melt adhesive heating and melting device, which relates to the technical field of polyurethane hot melt adhesive heating and melting and comprises a shell, a heating block is connected onto the shell through a heat insulation block, an adhesive melting barrel is connected in the heating block in a penetrating manner, an adhesive outlet nozzle is arranged at one end of the adhesive melting barrel, and an adhesive extruding structure is arranged at the other end of the adhesive melting barrel. The shell is connected with a storage cavity used for containing the polyurethane hot melt glue stick, and the shell is provided with a feeding structure used for driving the polyurethane hot melt glue stick in the storage cavity to enter the glue extruding structure. A plurality of polyurethane hot melt adhesive sticks are accommodated in the material storage cavity at one time, and the polyurethane hot melt adhesive in the material storage cavity is continuously fed into the adhesive extruding structure by arranging the feeding structure which works synchronously with the adhesive extruding structure, so that the continuous supply of the polyurethane hot melt adhesive sticks is realized, the frequency of manually loading the polyurethane hot melt adhesive sticks is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating and melting polyurethane hot melt adhesive, in particular to a polyurethane hot melt adhesive heating and melting device. Background Art

[0002] Before using polyurethane hot melt adhesive, the polyurethane hot melt adhesive stick needs to be heated to a molten state, and then applied to the area that needs to be bonded. The patent document with announcement number CN221789913U records a new type of PUR hot melt adhesive gun. The PUR hot melt adhesive gun is driven by a motor to rotate the gear, and the gear drives the extrusion block to extrude the hot melt adhesive stick through the rack. The heating cylinder melts the hot melt adhesive stick, and the molten PUR hot melt adhesive is squeezed out from the gun head. After a hot melt adhesive stick is used up, the gun body needs to be disassembled when a new hot melt adhesive stick is loaded, which is inefficient.

[0003] Based on this, a polyurethane hot melt adhesive heating and melting device is now provided, which can improve the disadvantages of the existing devices. Utility Model Content

[0004] The utility model aims to provide a polyurethane hot melt adhesive heating and melting device to improve the problem of low efficiency when loading a new hot melt adhesive stick in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A polyurethane hot melt adhesive heating and melting device comprises a shell, a handle is connected to the shell, a power cord for supplying power to the heating and melting device is connected to the handle, a heating block is connected to the shell through an insulating block, a heating switch is provided on the shell for controlling whether the heating block is heated, a melt glue cylinder is connected through the heating block, a glue outlet nozzle is provided at one end of the melt glue cylinder, a glue extrusion structure is provided at the other end of the melt glue cylinder, a storage cavity for accommodating a polyurethane hot melt adhesive stick is connected to the shell, and a feeding structure is provided on the shell for driving the polyurethane hot melt adhesive stick in the storage cavity into the glue extrusion structure.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: the rubber extrusion structure includes two rubber extrusion wheel shafts symmetrically connected to the shell, a rubber extrusion wheel is coaxially connected to the rubber extrusion wheel shaft, a first transmission gear is coaxially connected to the rubber extrusion wheel shaft, the two first transmission gears are meshed with each other, and a rubber extrusion drive component is provided on the shell to drive the rubber extrusion wheel to rotate.

[0009] In an optional solution: the glue extrusion drive assembly includes a drive motor connected to the shell, the power output end of the drive motor is coaxially connected to the second bevel gear, one end of the glue extrusion wheel shaft is coaxially connected to the first bevel gear, the first bevel gear is meshed with the second bevel gear, and the handle is provided with a glue extrusion switch for controlling the start and stop of the drive motor.

[0010] In an optional scheme: the feeding structure includes a feeding wheel shaft symmetrically rotatably arranged on the shell, a feeding wheel is coaxially connected to the feeding wheel shaft, a second transmission gear is coaxially connected to the feeding wheel shaft, two second transmission gears are meshed with each other, a synchronous transmission assembly is provided between one of the feeding wheel shafts and the rubber extrusion wheel shaft connected to the first bevel gear, and a feeding wheel groove is provided through the position of the material storage chamber corresponding to the feeding wheel.

[0011] In an optional solution: the synchronous transmission assembly includes a first synchronous pulley coaxially connected to the rubber extrusion wheel shaft connected to the first bevel gear, a second synchronous pulley coaxially connected to the feed wheel shaft, and a synchronous belt is provided between the first synchronous pulley and the second synchronous pulley.

[0012] In an optional solution: the material storage chamber is connected to a cover plate via a locking structure, a sliding column is slidably penetrated on the cover plate, one end of the sliding column is connected to a stopper, and the other end is connected to a pressure plate, a spring is provided between the pressure plate and the cover plate, and the spring is sleeved on the outside of the sliding column.

[0013] In an optional solution: the locking structure includes a locking plate symmetrically connected to the cover plate, a locking hole is formed on the locking plate, a locking block matching the size of the locking hole is provided at a position corresponding to the locking hole on the outer wall of the storage chamber, and an extension plate is provided on the locking plate for pulling the locking plate to make the locking plate produce elastic deformation.

[0014] In an optional solution: the locking plate is provided with a first guide surface, and the locking block is provided with a second guide surface.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The material storage chamber in the utility model can accommodate multiple polyurethane hot melt glue sticks at one time. By setting a feeding structure that works synchronously with the glue extrusion structure, the polyurethane hot melt glue in the material storage chamber is continuously fed into the glue extrusion structure, thereby realizing a continuous supply of polyurethane hot melt glue sticks, reducing the frequency of manual loading of polyurethane hot melt glue sticks, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model.

[0018] Figure 2 For this utility model Figure 1 A partial enlarged view of middle A.

[0019] Figure 3 It is a schematic diagram of the internal structure of the material storage chamber of the utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the synchronous transmission component of the utility model.

[0021] Reference numerals: 101, housing; 102, heating block; 103, glue nozzle; 104, heat insulation block; 105, glue tube; 106, handle; 107, power cord; 108, heating switch; 201, glue extrusion wheel shaft; 202, glue extrusion wheel; 203, first transmission gear; 204, first bevel gear; 205, driving motor; 206, second bevel gear; 207, glue extrusion switch; 301, feeding wheel shaft; 302 , feeding wheel; 303, second transmission gear; 304, first synchronous pulley; 305, second synchronous pulley; 306, synchronous belt; 401, material storage cavity; 402, feeding wheel groove; 403, cover plate; 404, sliding column; 405, block; 406, pressure plate; 407, spring; 501, locking plate; 502, locking block; 503, locking hole; 504, extension plate; 505, first guide surface; 506, second guide surface. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] In one embodiment, Figure 1-Figure 4 As shown, a polyurethane hot melt adhesive heating and melting device includes a shell 101, a handle 106 is connected to the shell 101, a power cord 107 for supplying power to the heating and melting device is connected to the handle 106, a heating block 102 is connected to the shell 101 through a heat insulating block 104, a heating switch 108 is provided on the shell 101 for controlling whether the heating block 102 is heated, a melt glue cylinder 105 is connected through the heating block 102, a glue outlet nozzle 103 is provided at one end of the melt glue cylinder 105, and a glue extrusion structure is provided at the other end of the melt glue cylinder 105, a material storage chamber 401 for accommodating a polyurethane hot melt adhesive stick is connected to the shell 101, and a feeding structure is provided on the shell 101 for driving the polyurethane hot melt adhesive stick in the material storage chamber 401 into the glue extrusion structure.

[0024] In this embodiment, the glue squeezing structure drives the polyurethane hot melt glue into the glue barrel 105, the heating block 102 heats the polyurethane hot melt glue stick in the glue barrel 105, and the molten polyurethane hot melt glue stick is squeezed out from the glue outlet 103. After the polyurethane hot melt glue stick leaves the storage chamber 401, the polyurethane hot melt glue stick stored in the storage chamber 401 falls down, and the feeding structure drives new polyurethane hot melt glue sticks into the glue squeezing structure, thereby realizing a continuous supply of polyurethane hot melt glue sticks, reducing the frequency of manual loading of polyurethane hot melt glue sticks, and improving work efficiency.

[0025] In one embodiment, Figure 1 and Figure 3 As shown, the rubber extrusion structure includes two rubber extrusion wheel shafts 201 symmetrically connected to the housing 101, a rubber extrusion wheel 202 is coaxially connected to the rubber extrusion wheel shaft 201, a first transmission gear 203 is coaxially connected to the rubber extrusion wheel shaft 201, and the two first transmission gears 203 are meshed with each other. The housing 101 is provided with a rubber extrusion drive component for driving the rubber extrusion wheel 202 to rotate, and the rubber extrusion drive component includes a drive motor 205 connected to the housing 101, and the power output end of the drive motor 205 is coaxially connected to the second bevel gear 206. One end of the rubber extrusion wheel shaft 201 is coaxially connected to The first bevel gear 204 is meshed with the second bevel gear 206. A glue squeezing switch 207 for controlling the start and stop of the driving motor 205 is provided on the handle 106. The driving motor 205 drives the first bevel gear 204 to rotate through the second bevel gear 206. The first bevel gear 204 drives the glue squeezing wheel shaft 201 connected to the first bevel gear 204 to rotate. The glue squeezing wheel shaft 201 drives another glue squeezing wheel shaft 201 to rotate synchronously through two first transmission gears 203, squeezes the polyurethane hot melt glue stick from both sides, and sends the polyurethane hot melt glue stick into the melt glue cylinder 105.

[0026] In one embodiment, Figure 1 , Figure 3 and Figure 4As shown, the feeding structure includes a feeding wheel shaft 301 symmetrically rotatably arranged on the shell 101, a feeding wheel 302 is coaxially connected to the feeding wheel shaft 301, a second transmission gear 303 is coaxially connected to the feeding wheel shaft 301, the two second transmission gears 303 are meshed with each other, a synchronous transmission component is provided between a feeding wheel shaft 301 and a rubber extrusion wheel shaft 201 connected to the first bevel gear 204, a feeding wheel groove 402 is penetrated by a position corresponding to the feeding wheel 302 on the storage chamber 401, the synchronous transmission component includes a first synchronous pulley 304 coaxially connected to the rubber extrusion wheel shaft 201 connected to the first bevel gear 204, a feeding wheel shaft 301 is coaxially connected to a second synchronous pulley 305, the first synchronous pulley 304 and the second synchronous pulley A synchronous belt 306 is provided between the pulleys 305, and the first synchronous pulley 304 rotates synchronously with the rubber extrusion wheel shaft 201 where the first bevel gear 204 is located. The first synchronous pulley 304 drives the second synchronous pulley 305 to rotate synchronously through the synchronous belt 306, and the second synchronous pulley 305 drives the feeding wheel shaft 301 where the second synchronous pulley 305 is located to rotate. The feeding wheel shaft 301 drives another feeding wheel shaft 301 to rotate synchronously through two second transmission gears 303, and the two feeding wheels 302 rotate synchronously. The two feeding wheels 302 contact the polyurethane hot melt glue stick in the storage cavity 401 through the feeding wheel groove 402, driving the polyurethane hot melt glue stick in the storage cavity 401 to slide out of the storage cavity 401 and enter between the two rubber extrusion wheels 202.

[0027] In one embodiment, Figure 2 and Figure 3 As shown, the storage chamber 401 is connected to the cover plate 403 through a locking structure, and a sliding column 404 is slidably penetrated on the cover plate 403. One end of the sliding column 404 is connected to the stopper 405, and the other end is connected to the pressing plate 406. A spring 407 is provided between the pressing plate 406 and the cover plate 403. The spring 407 is sleeved on the outside of the sliding column 404. A plurality of polyurethane hot melt glue sticks are placed in the storage chamber 401. After the cover plate 403 is covered, the spring 407 squeezes the pressing plate 406, so that the pressing plate 406 squeezes the polyurethane hot melt glue stick, which assists the polyurethane hot melt glue stick to enter between the two feeding wheels 302, and plays an auxiliary role in the discharge process of the polyurethane hot melt glue stick in the storage chamber 401.

[0028] In one embodiment, Figure 2As shown, the locking structure includes a locking plate 501 symmetrically connected to the cover plate 403, a locking hole 503 is opened on the locking plate 501, a locking block 502 matching the size of the locking hole 503 is provided at a position corresponding to the locking hole 503 on the outer wall of the storage chamber 401, and an extension plate 504 used to pull the locking plate 501 to make the locking plate 501 produce elastic deformation. When the cover plate 403 is installed, the cover plate 403 is made to fit the storage chamber 401. At this time, the locking hole 503 on the locking plate 501 is stuck with the locking block 502 to achieve locking. When the cover plate 403 is removed, the extension plate 504 is pulled to disengage the locking hole 503 from the locking block 502 to release the lock.

[0029] In one embodiment, Figure 2 As shown, the locking plate 501 is provided with a first guide surface 505 , and the locking block 502 is provided with a second guide surface 506 , so as to facilitate the installation of the cover plate 403 .

[0030] The above embodiment discloses a polyurethane hot melt adhesive heating and melting device, wherein the driving motor 205 drives the first bevel gear 204 to rotate through the second bevel gear 206, and the first bevel gear 204 drives the glue extrusion wheel shaft 201 connected to the first bevel gear 204 to rotate, and the glue extrusion wheel shaft 201 drives another glue extrusion wheel shaft 201 to rotate synchronously through two first transmission gears 203, extruding the polyurethane hot melt adhesive stick from both sides, and feeding the polyurethane hot melt adhesive stick into the melt cylinder 105. At the same time, the first synchronous pulley 304 rotates synchronously with the glue extrusion wheel shaft 201 where the first bevel gear 204 is located, and the first synchronous pulley 304 is driven by the synchronous belt 306. The second synchronous pulley 305 is driven to rotate synchronously, and the second synchronous pulley 305 drives the feeding wheel shaft 301 where the second synchronous pulley 305 is located to rotate, and the feeding wheel shaft 301 drives another feeding wheel shaft 301 to rotate synchronously through two second transmission gears 303, and the two feeding wheels 302 rotate synchronously, and the two feeding wheels 302 contact the polyurethane hot melt glue stick in the storage cavity 401 through the feeding wheel groove 402, driving the polyurethane hot melt glue stick in the storage cavity 401 to slide out of the storage cavity 401 and enter between the two glue squeezing wheels 202, so as to realize the continuous supply of polyurethane hot melt glue sticks, reduce the frequency of manual loading of polyurethane hot melt glue sticks, and improve work efficiency.

[0031] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A polyurethane hot melt adhesive heating and melting device, comprising a housing (101), the housing (101) being connected to a handle (106), the handle (106) being connected to a power cord (107) for supplying power to the heating and melting device, characterized in that: The shell (101) is connected to a heating block (102) via a heat insulating block (104); the shell (101) is provided with a heating switch (108) for controlling whether the heating block (102) is heated; a melt glue cylinder (105) is connected through the heating block (102); one end of the melt glue cylinder (105) is provided with a glue outlet nozzle (103); the other end of the melt glue cylinder (105) is provided with a glue extrusion structure; the shell (101) is connected to a material storage chamber (401) for accommodating a polyurethane hot melt glue stick; the shell (101) is provided with a feeding structure for driving the polyurethane hot melt glue stick in the material storage chamber (401) into the glue extrusion structure.

2. A polyurethane hot melt adhesive heating and melting device according to claim 1, characterized in that: The rubber extrusion structure comprises two rubber extrusion wheel shafts (201) symmetrically rotatably connected to a housing (101); a rubber extrusion wheel (202) is coaxially connected to the rubber extrusion wheel shaft (201); a first transmission gear (203) is coaxially connected to the rubber extrusion wheel shaft (201); the two first transmission gears (203) are meshed with each other; and a rubber extrusion drive assembly for driving the rubber extrusion wheel (202) to rotate is provided on the housing (101).

3. A polyurethane hot melt adhesive heating and melting device according to claim 2, characterized in that: The glue extrusion drive assembly comprises a drive motor (205) connected to a housing (101); a power output end of the drive motor (205) is coaxially connected to a second bevel gear (206); one end of the glue extrusion wheel shaft (201) is coaxially connected to a first bevel gear (204); the first bevel gear (204) is meshed with the second bevel gear (206); and a glue extrusion switch (207) for controlling the start and stop of the drive motor (205) is provided on the handle (106).

4. A polyurethane hot melt adhesive heating and melting device according to claim 1, characterized in that: The feeding structure comprises a feeding wheel shaft (301) symmetrically rotatably arranged on the housing (101); a feeding wheel (302) is coaxially connected to the feeding wheel shaft (301); a second transmission gear (303) is coaxially connected to the feeding wheel shaft (301); two second transmission gears (303) are meshed with each other; a synchronous transmission component is provided between one of the feeding wheel shafts (301) and a rubber extrusion wheel shaft (201) connected to the first bevel gear (204); and a feeding wheel groove (402) is provided through the position of the material storage chamber (401) corresponding to the feeding wheel (302).

5. A polyurethane hot melt adhesive heating and melting device according to claim 4, characterized in that: The synchronous transmission assembly comprises a first synchronous pulley (304) coaxially connected to a rubber extrusion wheel shaft (201) connected to a first bevel gear (204); a second synchronous pulley (305) coaxially connected to the feed wheel shaft (301); and a synchronous belt (306) is provided between the first synchronous pulley (304) and the second synchronous pulley (305).

6. A polyurethane hot melt adhesive heating and melting device according to claim 1, characterized in that: The material storage chamber (401) is connected to a cover plate (403) via a locking structure. A sliding column (404) is slidably penetrated through the cover plate (403). One end of the sliding column (404) is connected to a stopper (405), and the other end is connected to a pressing plate (406). A spring (407) is provided between the pressing plate (406) and the cover plate (403). The spring (407) is sleeved on the outside of the sliding column (404).

7. A polyurethane hot melt adhesive heating and melting device according to claim 6, characterized in that: The locking structure comprises a locking plate (501) symmetrically connected to the cover plate (403); a locking hole (503) is provided on the locking plate (501); a locking block (502) matching the size of the locking hole (503) is provided on the outer wall of the material storage chamber (401) at a position corresponding to the locking hole (503); and an extension plate (504) is provided on the locking plate (501) for moving the locking plate (501) so that the locking plate (501) generates elastic deformation.

8. A polyurethane hot melt adhesive heating and melting device according to claim 7, characterized in that: The locking plate (501) is provided with a first guide surface (505), and the locking block (502) is provided with a second guide surface (506).

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