Hot melting device for producing pressure-sensitive adhesive
By introducing a pressure-reducing component and a blockage-prevention component into the hot-melt device, and utilizing the cooperation of a rotating motor and a magnetic block, the problem of filter port clogging was solved, thereby improving the filtration and production efficiency of pressure-sensitive adhesive.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JIALIN NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-05-29
AI Technical Summary
In existing hot melt equipment for pressure-sensitive adhesive production, the hot melt adhesive tends to stick to the filter inlet of the filter plate during the filtration process, causing blockage and affecting filtration efficiency and production efficiency.
A hot-melting device including a pressure component and a blockage-prevention component was designed. The rotating motor drives the cam to periodically strike the plate, controlling the insertion of the blockage rod into the filter port of the filter plate. The magnetic force of the magnetic block is used to achieve blockage and avoid colloid clogging.
This effectively avoids filter clogging, improves the filtration and production efficiency of pressure-sensitive adhesive, and enhances the practicality of the device.
Smart Images

Figure CN224292685U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure-sensitive adhesive production technology, specifically a hot melt device for pressure-sensitive adhesive production. Background Technology
[0002] As is well known, a hot melt device for pressure-sensitive adhesive production is an auxiliary device used in the production process of pressure-sensitive adhesive to heat and melt the raw materials used, so as to better produce hot melt pressure-sensitive adhesives that meet market requirements in terms of size and shape. It has been widely used in the field of hot melt pressure-sensitive adhesive production.
[0003] Chinese patent application number 202320376925.0 discloses a hot melt device for producing pressure-sensitive adhesive with a filtering structure. The device includes a hot melt box, a positioning baffle, casters with foot brakes, a heating plate, an industrial electric heating element, a collection box, thermally conductive silicone, a filter screen, and a heating plate. Casters with foot brakes are symmetrically installed on the left and right sides of the lower end face of the hot melt box. A collection box is inserted into the lower side of the hot melt box, and a positioning baffle is connected to the front end face of the collection box. A heating plate is fixed in the middle position inside the hot melt box, and a heating plate is installed on the upper surface of the heating plate. An industrial electric heating element is installed inside the heating plate, and thermally conductive silicone is placed inside the heating plate. Filter screens are symmetrically placed on the left and right ends of the heating plate. This design solves the problem that the original hot melt device lacks a filtering structure. This utility model has a reasonable structure, possesses a filtering structure, is convenient to move and use, and is highly practical.
[0004] However, the hot melt device for producing pressure-sensitive adhesive still has some shortcomings in actual use. For example, after the hot melt adhesive melts, it will pass through the filter plate and enter the collection box. However, the adhesive is sticky. During the filtration process, it may stick to the filter port of the filter plate and block the filter plate, which will reduce the filtration efficiency and affect the production of pressure-sensitive adhesive. Utility Model Content
[0005] The purpose of this invention is to provide a hot melt device for the production of pressure-sensitive adhesives, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a hot melt device for pressure-sensitive adhesive production, comprising a housing assembly, wherein a pressing component is fixedly installed on the rear of the top surface of the housing assembly, and unblocking and anti-clogging components are fixedly installed on both sides inside the housing assembly.
[0007] The pressing component includes a T-shaped mounting plate, on the top of one side of the vertical portion of the T-shaped mounting plate, a rotating motor is fixedly embedded, and a cam is fixedly mounted on one end of the output shaft of the rotating motor;
[0008] The unblocking and anti-clogging component includes a fixed mounting plate. Two cylinders are fixedly inserted into the top surface of the fixed mounting plate. A first magnetic block is fixedly installed on the top surface inside each cylinder. A second magnetic block is slidably installed inside the cylinder. A piston rod is fixedly installed at the bottom of the second magnetic block. The two piston rods extend through the bottom surface of the cylinder. A mounting plate is fixedly installed on the bottom surface of the two piston rods. Multiple unblocking rods are fixedly installed on the bottom surface of the mounting plate. Under the action of the first and second magnetic blocks and the cam, the unblocking rods can move up and down.
[0009] Preferably, the housing assembly includes a hot melt box, a vertical insertion shaft is movably inserted into the middle of the rear end of the top surface of the hot melt box, a striking plate is fixedly installed at the top of the vertical insertion shaft, and a figure-eight rod is fixedly installed at the bottom of the vertical insertion shaft. The bottom ends of the figure-eight rod are respectively fixedly connected to the top surfaces of two mounting plates.
[0010] Preferably, L-shaped baffles are fixedly installed on both sides of the top surface of the hot melt box, and a cover plate is slidably inserted between the two L-shaped baffles. Vertical grooves are opened on the upper part of both sides of the hot melt box, and partitions are slidably installed in the vertical grooves. A handle is provided on the outer side of the partition. Side openings that avoid the handles are opened in the middle of both sides of the hot melt box. A collection box is movably inserted into the bottom front of the hot melt box.
[0011] Preferably, the first and second magnetic blocks are arranged opposite each other with opposite poles attracting each other, the T-shaped mounting plate is fixedly installed on the top back of the hot melt box, and the cam is located above the top surface of the striking plate.
[0012] Preferably, a heating plate is fixedly installed in the middle of the hot melt box, and filter plates are fixedly installed on both sides of the heating plate. The two fixed mounting plates are respectively fixedly installed on the top of the inner walls on both sides of the hot melt box.
[0013] Preferably, the top surface of the filter plate has multiple filter ports, and the multiple unblocking rods correspond one-to-one with the multiple filter ports.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] After each hot-melt process and filtration of the pressure-sensitive adhesive, the hot-melt device for pressure-sensitive adhesive production can start a rotating motor. Simultaneously, the rotating motor drives a cam to periodically abut against a striking plate, thereby controlling the periodic insertion of a clearing rod into the filter port on the top surface of the filter plate. This effectively prevents the pressure-sensitive adhesive from sticking to the filter port and clogging it, thus significantly improving the filtration and production efficiency of the pressure-sensitive adhesive and enhancing its practicality. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0018] Figure 3 This is a schematic diagram of the internal structure of the housing assembly of this utility model;
[0019] Figure 4 This is a schematic diagram of the pressure-resistant component structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the unblocking and anti-clogging component of this utility model.
[0021] In the diagram: 1. Box assembly; 101. Hot melt box; 102. L-shaped baffle; 103. Cover plate; 104. Vertical insertion shaft; 105. Impact plate; 106. Figure-eight rod; 107. Side opening; 108. Partition plate; 109. Heating plate; 110. Filter plate; 111. Collection box; 112. Handle; 2. Pressing assembly; 201. T-shaped mounting plate; 202. Rotating motor; 203. Cam; 3. Unblocking and anti-clogging assembly; 301. Fixed mounting plate; 302. Cylinder; 303. Magnetic block No. 1; 304. Magnetic block No. 2; 305. Piston rod; 306. Mounting plate; 307. Unblocking rod. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figure 1-5 As shown, this utility model provides a technical solution: including a box assembly 1, a pressing component 2 is fixedly installed on the rear of the top surface of the box assembly 1, and a dredging and anti-blocking component 3 is fixedly installed on both sides inside the box assembly 1.
[0024] The housing assembly 1 includes a hot melt box 101. A vertical insertion shaft 104 is movably inserted into the middle of the rear end of the top surface of the hot melt box 101. A striking plate 105 is fixedly installed at the top of the vertical insertion shaft 104, and a figure-eight rod 106 is fixedly installed at the bottom of the vertical insertion shaft 104. A heating plate 109 is fixedly installed in the middle of the hot melt box 101, and filter plates 110 are fixedly installed on both sides of the heating plate 109.
[0025] The pressing component 2 includes a T-shaped mounting plate 201. A rotating motor 202 is fixedly embedded on the top of one side of the vertical portion of the T-shaped mounting plate 201. A cam 203 is fixedly mounted on one end of the output shaft of the rotating motor 202.
[0026] The unblocking and anti-clogging component 3 includes a fixed mounting plate 301. Cylinders 302 are fixedly inserted into both sides of the top surface of the fixed mounting plate 301. A first magnetic block 303 is fixedly installed on the top surface inside the cylinder 302. A second magnetic block 304 is slidably installed inside the cylinder 302. A piston rod 305 is fixedly installed at the bottom of the second magnetic block 304. The two piston rods 305 extend through the bottom surface of the cylinder 302. A mounting plate 306 is fixedly installed on the bottom surface of the two piston rods 305. Multiple unblocking rods 307 are fixedly installed on the bottom surface of the mounting plate 306. The bottom ends of the figure-eight rods 106 are fixedly connected to the top surfaces of the two mounting plates 306 respectively. Under the action of the first magnetic block 303, the second magnetic block 304, and the cam 203, the unblocking rods 307 can move up and down. After each hot melting and filtration of the pressure-sensitive adhesive, the rotating motor 202 is started. The rotating motor 202 can drive the cam 203 to rotate. The rotation of the cam 203 can periodically push against the striking plate 105, causing the force on the striking plate 105 to decrease. The decrease of the striking plate 105 will drive the vertical insertion shaft 104 and the figure-eight rod 106 to decrease.
[0027] When the figure-eight rod 106 descends, it will cause the mounting plate 306 to descend. The descent of the mounting plate 306 will cause the unblocking rod 307 to descend and be inserted into the filter port opened on the surface of the filter plate 110. After insertion, it can unblock the filter port and prevent the pressure-sensitive adhesive from sticking to the filter port and clogging it. During the process of the striking end of the cam 203 turning to the top, the mutual attraction between the first magnetic block 303 and the second magnetic block 304 can cause the piston rod 305 to rise. The rise of the piston rod 305 will cause the mounting plate 306 to rise. The rise of the mounting plate 306 will cause the unblocking rod 307 to rise, thereby pulling it out from the corresponding filter port.
[0028] In this embodiment, L-shaped baffles 102 are fixedly installed on both sides of the top surface of the hot melt box 101, and a cover plate 103 is slidably inserted between the two L-shaped baffles 102. Vertical grooves are opened on the upper part of both sides of the hot melt box 101, and partitions 108 are slidably installed in the vertical grooves. Handles 112 are provided on the outer side of the partitions (108). Side openings 107 for avoiding the handles 112 are opened in the middle of both sides of the hot melt box 101. By holding the handles 112, the partitions 108 can be opened upwards, thereby cleaning the filter plates 110 and the unblocking rods 307 arranged on both sides of the hot melt box 101. A collection box 111 is movably inserted into the bottom front of the hot melt box 101. The hot melt device is connected to the power supply and external Connect the temperature controller and adjust the working temperature of the heating plate 109 to the required temperature. At the same time, the heating plate 109 will transfer some heat to the two sets of filter plates 110 fixedly installed on both sides. Then, the operator will place an appropriate amount of pressure-sensitive adhesive to be heated and melted in the middle of the top surface of the heating plate 109. After placing it, insert the cover plate 103 between the two L-shaped baffles 102. At this time, the heating plate 109 will heat and melt the pressure-sensitive adhesive. The melted pressure-sensitive adhesive will flow to the left and right sides in a liquid state and be filtered by the two sets of filter plates 110 to block large particles of impurities in the melted pressure-sensitive adhesive. The filtered pressure-sensitive adhesive will fall downward into the collection box 111 for temporary storage.
[0029] The first magnetic block 303 and the second magnetic block 304 are arranged opposite each other with opposite poles attracting each other. The T-shaped mounting plate 201 is fixedly installed on the top back of the hot melt box 101, and the cam 203 is located above the top surface of the striking plate 105. The two fixed mounting plates 301 are respectively fixedly installed on the top of the inner walls on both sides of the hot melt box 101.
[0030] The top surface of the filter plate 110 has multiple filter ports, and the multiple unblocking rods 307 correspond one-to-one with the multiple filter ports.
[0031] In summary, after each hot-melt process and filtration of the pressure-sensitive adhesive, the hot-melt device for pressure-sensitive adhesive production can start the rotating motor 202. Simultaneously, the rotating motor 202 drives the cam 203 to periodically abut the striking plate 105, thereby controlling the unblocking rod 307 to periodically insert into the filter port on the top surface of the filter plate 110. This effectively prevents the pressure-sensitive adhesive from sticking to the filter port and clogging it, thus effectively improving the filtration and production efficiency of the pressure-sensitive adhesive and enhancing its practicality.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hot melt apparatus for producing pressure-sensitive adhesive, comprising a housing assembly (1), characterized in that... A pressure-blocking component (2) is fixedly installed on the rear of the top surface of the box assembly (1), and a blockage-prevention component (3) is fixedly installed on both sides inside the box assembly (1). The pressing component (2) includes a T-shaped mounting plate (201), a rotating motor (202) is fixedly embedded on the top of one side of the vertical part of the T-shaped mounting plate (201), and a cam (203) is fixedly installed on one end of the output shaft of the rotating motor (202). The unblocking and anti-clogging component (3) includes a fixed mounting plate (301). A cylinder (302) is fixedly inserted into both sides of the top surface of the fixed mounting plate (301). A first magnetic block (303) is fixedly installed on the top surface inside the cylinder (302). A second magnetic block (304) is slidably installed inside the cylinder (302). A piston rod (305) is fixedly installed at the bottom of the second magnetic block (304). The two piston rods (305) extend through the bottom surface of the cylinder (302). An mounting plate (306) is fixedly installed on the bottom surface of the two piston rods (305). A plurality of unblocking rods (307) are fixedly installed on the bottom surface of the mounting plate (306). Under the action of the first magnetic block (303), the second magnetic block (304), and the cam (203), the unblocking rods (307) can move up and down.
2. The hot melt apparatus for producing pressure-sensitive adhesive according to claim 1, characterized in that, The housing assembly (1) includes a hot melt box (101). A vertical insertion shaft (104) is movably inserted into the middle of the rear end of the top surface of the hot melt box (101). A striking plate (105) is fixedly installed at the top of the vertical insertion shaft (104). A figure-eight rod (106) is fixedly installed at the bottom of the vertical insertion shaft (104). The bottom of the figure-eight rod (106) is fixedly connected to the top surface of two mounting plates (306) respectively.
3. The hot melt apparatus for producing pressure-sensitive adhesive according to claim 2, characterized in that, L-shaped baffles (102) are fixedly installed on both sides of the top surface of the hot melt box (101). A cover plate (103) is slidably inserted between the two L-shaped baffles (102). Vertical grooves are opened on the upper part of both sides of the hot melt box (101). A partition (108) is slidably installed in the vertical groove. A handle (112) is provided on the outer side of the partition (108). A side opening (107) is opened in the middle of both sides of the hot melt box (101) to avoid the handle (112). A collection box (111) is movably inserted into the bottom front of the hot melt box (101).
4. The hot melt apparatus for producing pressure-sensitive adhesive according to claim 2, characterized in that, The first magnetic block (303) and the second magnetic block (304) are arranged opposite each other and attract each other. The T-shaped mounting plate (201) is fixedly installed on the top back of the hot melt box (101). The cam (203) is located above the top surface of the striking plate (105).
5. A hot melt apparatus for producing pressure-sensitive adhesive according to claim 2, characterized in that, A heating plate (109) is fixedly installed in the middle of the hot melt box (101), and filter plates (110) are fixedly installed on both sides of the heating plate (109). Two fixed mounting plates (301) are respectively fixedly installed on the top of the inner walls on both sides of the hot melt box (101).
6. The hot melt apparatus for producing pressure-sensitive adhesive according to claim 5, characterized in that, The top surface of the filter plate (110) is provided with multiple filter ports, and the multiple unblocking rods (307) correspond one-to-one with the multiple filter ports.