Improved hot melt adhesive cutting device

Abstract

The utility model relates to the technical field of hot melt adhesive granulation, and discloses an improved hot melt adhesive cutting device which comprises a bearing plate, a portal frame is fixedly connected to the upper side of the left end of the bearing plate, a cutting knife moving up and down is arranged on the inner side of the portal frame, an opening is formed in the middle of the upper end of the cutting knife, and the opening is communicated with the portal frame. A fixing plate is fixedly connected to the right side of the upper end of the portal frame, a first motor is fixedly connected to the right side of the lower end of the fixing plate, a rotating disc is fixedly connected to the driving end of the first motor, and an eccentric shaft is fixedly connected to the left side of the rotating disc. According to the hot melt adhesive pelletizing device, the arranged scraper is tightly attached to the left side of the cutting knife, the arranged first motor drives the rotating disc and the eccentric shaft to rotate, the cutting knife is driven to move up and down in a reciprocating mode, and particles attached to the left side of the cutting knife can be scraped off when hot melt adhesive is pelletized, so that the situation that the particles are accumulated, and the subsequent pelletizing efficiency is affected is avoided; the fan can drive air to flow, and the temperature of the cutting knife is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hot melt adhesive granulation technology, and in particular to an improved hot melt adhesive cutting device. Background Technology

[0002] Hot melt adhesive is short for hot melt adhesive glue. It does not use any solvents in its production and application, is non-toxic, odorless, and does not pollute the environment. It is known as a green adhesive and is particularly suitable for use on continuous production lines. Hot melt adhesive cutting equipment is widely used in packaging, textiles, electronic assembly and other fields. Its core function is to cut molten hot melt adhesive strips into specific lengths or shapes as needed to meet the needs of automated production.

[0003] During operation, hot melt adhesive particles tend to adhere to the surface of the cutting blade after cutting. Due to the accumulation of adhesive particles, operators need to frequently stop the machine to clean the blade, which affects the continuity of production. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an improved hot melt adhesive cutting device that can prevent hot melt adhesive particles from adhering to the cutting blade and affecting subsequent cutting.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An improved hot melt adhesive cutting device includes a support plate, a gantry frame fixedly connected to the upper left side of the support plate, a vertically movable cutting blade arranged inside the gantry frame, an opening in the middle of the upper end of the cutting blade, a fixing plate fixedly connected to the upper right side of the gantry frame, a first motor fixedly connected to the lower right side of the fixing plate, a turntable fixedly connected to the drive end of the first motor, an eccentric shaft fixedly connected to the left side of the turntable, the left end of the eccentric shaft movably connected inside the opening, grooves formed at the front and rear ends of the gantry frame, an adjusting plate arranged on the left side of the gantry frame, sliders arranged at the front and rear ends of the adjusting plate, the ends of the sliders slidably connected to the inside of the grooves, a scraper fixedly connected to the right side of the adjusting plate, the end of the scraper tightly abutting the left side of the cutting blade, fasteners threadedly connected to both the front and rear ends of the adjusting plate, and a conveying assembly arranged on the upper right side of the support plate.

[0007] Furthermore, the conveying assembly includes a groove provided in the middle of the upper side of the bearing plate, a first rotating shaft rotatably connected to the inner side of the groove, and a first guide wheel fixedly connected to the outer side of the first rotating shaft.

[0008] Furthermore, a second motor is fixedly connected to the front side of the support plate, and the drive end of the second motor is fixedly connected to the front end of the first rotating shaft.

[0009] Furthermore, the conveying assembly also includes a U-shaped plate fixedly connected to the upper side of the bearing plate. A lifting plate that moves up and down is provided on the inner side of the right end of the U-shaped plate. Limiting rods are fixedly connected to the upper sides of both the front and rear ends of the lifting plate. The upper ends of the limiting rods penetrate the upper side of the U-shaped plate. Side plates are fixedly connected to the lower sides of both the front and rear ends of the lifting plate. A second rotating shaft is rotatably connected to the middle of the side plate. A second guide wheel is fixedly connected to the outside of the second rotating shaft.

[0010] Furthermore, a lead screw is rotatably connected to the upper right end of the U-shaped plate, the lower end of the lead screw is rotatably connected to the upper side of the lifting plate, and a handwheel is fixedly connected to the upper end of the lead screw.

[0011] Furthermore, a rotating plate is provided on the inner side of the left end of the U-shaped plate, the upper end of the rotating plate is rotatably connected to the inner side of the U-shaped plate, and a fan that blows towards the cutting blade is fixedly connected inside the rotating plate.

[0012] Furthermore, the U-shaped plate has arc-shaped openings on both the front and rear sides, and a movable rod is movably installed on the inner side of the arc-shaped opening. The opposite ends of the movable rods are respectively fixedly connected to the front and rear sides of the lower end of the rotating plate, and a nut is externally threaded to the opposite ends of the movable rods.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the scraper is closely attached to the left side of the cutting blade. When the first motor drives the turntable and eccentric shaft to rotate, it drives the cutting blade to move up and down reciprocally. When cutting hot melt adhesive into pellets, the particles attached to the left side of the cutting blade can be scraped off, thereby avoiding the accumulation of particles and affecting the efficiency of subsequent pelletizing.

[0015] 2. In this utility model, the fan can drive airflow to form an airflow that blows towards the cutting blade, reducing the temperature of the cutting blade and hot melt adhesive, preventing the hot melt adhesive from melting and sticking to the device, which is difficult to clean. The rotation of the rotating plate drives the fan to adjust the angle. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an improved hot melt adhesive cutting device proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the cutting blade of an improved hot melt adhesive cutting device proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the scraper of an improved hot melt adhesive cutting device proposed in this utility model;

[0019] Figure 4This is a schematic diagram of the support plate of an improved hot melt adhesive cutting device proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the fan of an improved hot melt adhesive cutting device proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the lifting plate of an improved hot melt adhesive cutting device proposed in this utility model.

[0022] Legend:

[0023] 1. Bearing plate; 2. Gantry frame; 3. Cutting blade; 4. Opening; 5. Fixing plate; 6. First motor; 7. Turntable; 8. Eccentric shaft; 9. Slide groove; 10. Adjusting plate; 11. Scraper; 12. Slider; 13. Fastener; 14. Groove; 15. First rotating shaft; 16. First guide wheel; 17. Second motor; 18. U-shaped plate; 19. Lifting plate; 20. Limiting rod; 21. Side plate; 22. Second rotating shaft; 23. Second guide wheel; 24. Lead screw; 25. Handwheel; 26. Rotating plate; 27. Fan; 28. Arc-shaped opening; 29. ​​Movable rod; 30. Nut. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1-3 This utility model provides an embodiment of an improved hot melt adhesive cutting device, comprising a support plate 1, a gantry 2 fixedly connected to the upper left side of the support plate 1, a vertically movable cutting blade 3 provided on the inner side of the gantry 2, an opening 4 in the middle of the upper end of the cutting blade 3, a fixing plate 5 fixedly connected to the upper right side of the gantry 2, a first motor 6 fixedly connected to the lower right side of the fixing plate 5, a turntable 7 fixedly connected to the drive end of the first motor 6, an eccentric shaft 8 fixedly connected to the left side of the turntable 7, the left end of the eccentric shaft 8 being movably connected inside the opening 4, sliding grooves 9 provided at both the front and rear ends of the gantry 2, an adjusting plate 10 provided on the left side of the gantry 2, sliders 12 provided at both the front and rear ends of the adjusting plate 10, the ends of the sliders 12 being slidably connected to the inside of the sliding grooves 9, a scraper 11 fixedly connected to the right side of the adjusting plate 10, the end of the scraper 11 being tightly attached to the left side of the cutting blade 3, and fasteners 13 for fixing being threaded to both the front and rear ends of the adjusting plate 10.

[0026] After the first motor 6 starts, it drives the turntable 7 to rotate. The eccentric shaft 8 on the turntable 7 rotates accordingly. Through the linkage action embedded in the upper opening 4 of the cutting blade 3, it pushes the cutting blade 3 to move up and down along the inner side of the gantry 2. When the cutting blade 3 presses down, it cuts the continuously conveyed rubber strip to form particles. When it is lifted up, it resets and prepares for the next cut. The cutting frequency is matched with the conveying speed of the rubber strip to ensure that the particle length is uniform. The scraper 11 is fixed to the right side of the adjusting plate 10, and its cutting edge is close to the left side of the cutting blade 3. When the cutting blade 3 moves up and down, the scraper 11 continuously scrapes off the hot melt adhesive particles adhering to the blade surface to prevent accumulation from affecting the cutting effect. The adjusting plate 10 moves up and down on the left side of the gantry 2, thereby driving the scraper 11 to move up and down to adjust the height. After adjustment, the fastener 13 is rotated to fix the adjusting plate 10.

[0027] Reference Figure 1 , Figure 4 and Figure 6 A groove 14 is provided in the middle of the upper side of the support plate 1. A first rotating shaft 15 is rotatably connected to the inner side of the groove 14. A first guide wheel 16 is fixedly connected to the outer side of the first rotating shaft 15. A second motor 17 is fixedly connected to the front side of the support plate 1. The drive end of the second motor 17 is fixedly connected to the front end of the first rotating shaft 15. A U-shaped plate 18 is fixedly connected to the upper side of the support plate 1. A vertically movable lifting plate 19 is provided on the inner side of the right end of the U-shaped plate 18. The front and rear ends of the lifting plate 19 are... Limiting rods 20 are fixedly connected to the upper side of the lifting plate 19. The upper end of the limiting rods 20 passes through the upper side of the U-shaped plate 18. Side plates 21 are fixedly connected to the lower sides of both the front and rear ends of the lifting plate 19. A second rotating shaft 22 is rotatably connected to the middle of the side plate 21. A second guide wheel 23 is fixedly connected to the outside of the second rotating shaft 22. A lead screw 24 is rotatably connected to the upper right end of the U-shaped plate 18. The lower end of the lead screw 24 is rotatably connected to the upper side of the lifting plate 19. A handwheel 25 is fixedly connected to the upper end of the lead screw 24.

[0028] The hot melt adhesive strip is placed on the groove 14 of the first guide wheel 16. The handwheel 25 is turned to drive the lead screw 24 to rotate, causing the lifting plate 19 to move down, so that the second guide wheel 23 presses against the upper surface of the adhesive strip, forming a clamping and conveying structure that can be used for adhesive strips of different sizes. The second motor 17 is started to drive the first rotating shaft 15 and the first guide wheel 16 to rotate. Through frictional engagement with the second guide wheel 23, the adhesive strip is conveyed to the cutting station at a uniform speed to the left.

[0029] Reference Figure 1 , Figure 5 and Figure 6A rotating plate 26 is provided on the inner side of the left end of the U-shaped plate 18. The upper end of the rotating plate 26 is rotatably connected to the inner side of the U-shaped plate 18. A fan 27 that blows towards the cutting blade 3 is fixedly connected inside the rotating plate 26. Arc-shaped openings 28 are provided on both the front and rear sides of the U-shaped plate 18. Movable rods 29 are movably provided on the inner side of the arc-shaped openings 28. The opposite ends of the movable rods 29 are fixedly connected to the front and rear sides of the lower end of the rotating plate 26, respectively. Nuts 30 are externally threaded to the opposite ends of the movable rods 29.

[0030] When the fan 27 is started, the airflow is guided through the rotating plate 26 to the surface of the cutting blade 3 and the rubber strip, which is used to reduce the temperature of the cutting blade 3 and the rubber strip. The angle of the rotating plate 26 can be adjusted by the movable rod 29 and the nut 30 to optimize the airflow direction.

[0031] Working principle: The adjustable plate 10 moves up and down on the left side of the gantry 2, thereby driving the scraper 11 to move up and down to adjust the height. After adjustment, the fastener 13 is rotated to fix the adjustable plate 10. The hot melt adhesive strip is placed on the groove 14 of the first guide wheel 16. Then, the handwheel 25 drives the screw 24 to rotate, driving the lifting plate 19 to descend, thereby driving the second guide wheel 23 to press the adhesive strip from the top. The second motor 17 is started to drive the first rotating shaft 15 and the first guide wheel 16 to rotate. The rotating first guide wheel 16 cooperates with the second guide wheel 23 to drive the adhesive strip to the left. The first motor 6 is started to drive the turntable 7 to rotate. The rotating turntable 7 drives the eccentric shaft 8 to rotate. The rotating eccentric shaft 8 cooperates with the opening 4 to drive the cutting blade 3 to move up and down, thereby cutting the adhesive strip conveyed to the left into pellets. The scraper 11 can clean the pellets attached to the cutting blade 3.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An improved hot melt adhesive cutting device, characterized in that, The system includes a support plate (1), a gantry frame (2) fixedly connected to the upper left side of the support plate (1), a vertically movable cutting blade (3) provided on the inner side of the gantry frame (2), an opening (4) in the middle of the upper end of the cutting blade (3), a fixing plate (5) fixedly connected to the upper right side of the gantry frame (2), a first motor (6) fixedly connected to the lower right side of the fixing plate (5), a turntable (7) fixedly connected to the drive end of the first motor (6), an eccentric shaft (8) fixedly connected to the left side of the turntable (7), and the left end of the eccentric shaft (8) movably connected to the opening (4). Inside the gantry (2), the front and rear ends of the gantry (2) are provided with sliding grooves (9), the left side of the gantry (2) is provided with an adjusting plate (10), the front and rear ends of the adjusting plate (10) are provided with sliders (12), the ends of the sliders (12) are slidably connected to the inside of the sliding grooves (9), the right side of the adjusting plate (10) is fixedly connected with a scraper (11), the end of the scraper (11) is in close contact with the left side of the cutting blade (3), the front and rear ends of the adjusting plate (10) are threaded with fasteners (13) for fixing, and the upper right side of the bearing plate (1) is provided with a conveying component.

2. The improved hot melt adhesive cutting device according to claim 1, characterized in that: The conveying assembly includes a groove (14) provided in the middle of the upper side of the bearing plate (1), a first rotating shaft (15) is rotatably connected to the inner side of the groove (14), and a first guide wheel (16) is fixedly connected to the outer side of the first rotating shaft (15).

3. The improved hot melt adhesive cutting device according to claim 2, characterized in that: The front side of the support plate (1) is fixedly connected to a second motor (17), and the drive end of the second motor (17) is fixedly connected to the front end of the first rotating shaft (15).

4. An improved hot melt adhesive cutting device according to claim 2, characterized in that: The conveying assembly also includes a U-shaped plate (18) fixedly connected to the upper side of the bearing plate (1). A lifting plate (19) that moves up and down is provided on the inner side of the right end of the U-shaped plate (18). Limiting rods (20) are fixedly connected to the upper sides of both the front and rear ends of the lifting plate (19). The upper end of the limiting rod (20) passes through the upper side of the U-shaped plate (18). Side plates (21) are fixedly connected to the lower sides of both the front and rear ends of the lifting plate (19). A second rotating shaft (22) is rotatably connected to the middle of the side plate (21). A second guide wheel (23) is fixedly connected to the outside of the second rotating shaft (22).

5. An improved hot melt adhesive cutting device according to claim 4, characterized in that: A lead screw (24) is rotatably connected to the upper right side of the U-shaped plate (18), and the lower end of the lead screw (24) is rotatably connected to the upper side of the lifting plate (19). A handwheel (25) is fixedly connected to the upper end of the lead screw (24).

6. An improved hot melt adhesive cutting device according to claim 4, characterized in that: A rotating plate (26) is provided on the inner side of the left end of the U-shaped plate (18). The upper end of the rotating plate (26) is rotatably connected to the inner side of the U-shaped plate (18). A fan (27) that blows towards the cutting blade (3) is fixedly connected inside the rotating plate (26).

7. An improved hot melt adhesive cutting device according to claim 6, characterized in that: The U-shaped plate (18) has arc-shaped openings (28) on both the front and rear sides. A movable rod (29) is movably arranged inside the arc-shaped opening (28). The opposite ends of the movable rod (29) are fixedly connected to the front and rear sides of the lower end of the rotating plate (26). A nut (30) is externally threaded to the opposite end of the movable rod (29).

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