Hot melt adhesive production adhesive strip cooling structure

Abstract

The utility model relates to hot melt adhesive production equipment field, concretely relates to a hot melt adhesive production adhesive strip cooling structure, including cooling box and being located at the first guide roller of cooling box both ends top, the cooling box inner chamber is equipped with the conveying roller, it further includes: the support plate fixed in the cooling box end, the support plate is fixed with the second guide roller height flush with the first guide roller, the utility model discloses a cylindrical cam mechanism driven by motor is set up, can automatically, continuously, evenly drive the reciprocating linear motion of guide plate to the periodic extrusion both sides wipe (such as polyurethane sponge), effectively and in time extrude the saturated moisture of its adsorption, make it always keep good half dry state and water absorption performance. This automatic process avoids the traditional manual extrusion low efficiency, the problem of uneven extrusion, ensures that the adhesive strip surface moisture is continuously, stably, completely erased, significantly improves the water removal efficiency and effect, and lays a good foundation for the subsequent drying process.

Description

Technical Field

[0001] This utility model relates to the field of hot melt adhesive production equipment, and in particular to a cooling structure for hot melt adhesive strips. Background Technology

[0002] Hot melt adhesive is a type of adhesive that is solid at room temperature, melts into a liquid upon heating, and quickly forms a strong adhesive layer after being applied to and wetting the substrate and then cooled. During its production, the extruded adhesive strips need to be cooled and set in a cooling water bath. After cooling, a large amount of moisture adheres to the surface of the strip. If this moisture is not effectively removed before proceeding to subsequent drying or winding processes, it will lead to increased drying energy consumption, reduced efficiency, and may even affect the quality and shelf life of the adhesive strip.

[0003] In existing technologies, simple sponges or scrapers are typically placed at the outlet of the cooling water tank to remove moisture from the surface of the rubber strip. However, these devices have significant drawbacks: the sponge quickly becomes saturated after absorbing moisture, and if it is not squeezed out of the water in time, its wiping effect will decrease sharply, and the absorbed moisture will be reapplied to the surface of the rubber strip, resulting in incomplete dehydration. Manually squeezing the sponge is not only inefficient and increases labor intensity, but also cannot achieve continuous and uniform squeezing, affecting the degree of automation and stability of production. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a cooling structure for hot melt adhesive strip production to solve the technical problems in the prior art.

[0005] To achieve the above objectives, this utility model provides a cooling structure for hot melt adhesive strip production, including a cooling box and first guide rollers disposed at the top of both ends of the cooling box. The cooling box has a conveying roller inside, and further includes: A support plate fixed to the end of the cooling box, wherein a second guide roller is fixed on the support plate at the same height as the first guide roller; At least one mounting bracket fixed to the surface of the support plate, wherein a wiping element is provided on one side of the mounting bracket; A fixed rod is provided on one side of the mounting frame and located below the wiping component. A guide plate is slidably installed on the fixed rod. Guide columns are symmetrically fixed at the bottom of the guide plate. The upper end of the guide plate overlaps the end of the wiping component and has a through hole that is collinear with the central axis of the wiping component. A mounting plate is fixed to one side of the bottom of the support plate. A motor is provided on the surface of the mounting plate. The output end of the motor is connected to a first rotating shaft, and one end of the first rotating shaft is rotatably mounted on the side wall of the cooling box. A cylindrical cam is fixed to the surface of the first rotating shaft. The surface of the cylindrical cam has a ridge, and two guide posts are respectively placed on both sides of the ridge.

[0006] Preferably, the wiping component consists of two semi-circular members, symmetrically fixed to one side of the mounting frame, and the axes of the two members are collinear with the central axis of the second guide roller.

[0007] Preferably, the wiping element is a polyurethane sponge.

[0008] Preferably, there are two mounting brackets, which are symmetrically arranged on the support plate, and the guide plate is located between the two mounting brackets.

[0009] Preferably, a movable groove is provided in the middle of the support plate, and the lower end of the guide plate extends to the bottom of the support plate through the movable groove.

[0010] Preferably, the cooling structure further includes a second rotating shaft horizontally rotatably mounted in the inner cavity of the cooling box, one end of the second rotating shaft extending to the outer wall of the cooling box and fixed with a first gear; A second gear is fixed to one end of the first rotating shaft, and the second gear meshes with the first gear; A stirring blade is fixed equidistantly to the surface of the second rotating shaft along the circumference, and the stirring blade is located below the conveying roller.

[0011] Preferably, a sealing element is provided between the second rotating shaft and the inner wall of the cooling box, wherein the inner ring of the sealing element is rotatably engaged with the second rotating shaft, and its outer ring is fixedly installed with the cooling box.

[0012] Preferably, a water tank is provided at one end of the cooling box, and the water tank is located directly below the moving trough.

[0013] The beneficial effects of this utility model are as follows: The hot melt adhesive strip cooling structure of this utility model, through a cylindrical cam mechanism driven by a motor, can automatically, continuously, and uniformly drive the guide plate to perform reciprocating linear motion, thereby periodically squeezing the wiping components (such as polyurethane sponges) on both sides. This effectively and promptly squeezes out the saturated moisture adsorbed within, maintaining its good semi-dry state and water absorption performance. This automated process avoids the problems of low efficiency and uneven squeezing in traditional manual extrusion, ensuring that the moisture on the surface of the adhesive strip is continuously, stably, and thoroughly wiped away, significantly improving the dehydration efficiency and effect. This lays a good foundation for subsequent drying processes, helps reduce drying energy consumption, and ensures the quality of the finished adhesive strip. The main motor's power is transmitted to the stirring blades inside the cooling tank via a gear pair, causing them to rotate synchronously. This powerfully agitates the cooling water at the bottom of the cooling tank, effectively promoting a uniform distribution of water temperature within the tank and preventing the cooling efficiency from decreasing due to excessively high local water temperatures. This significantly improves the overall cooling efficiency and uniformity of the rubber strip. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a partial structural cross-sectional view of the support plate, mounting bracket, and mounting plate of this utility model; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is an exploded view of the partial structure of the wiping component, the first rotating shaft, and the cylindrical cam of this utility model.

[0016] The diagram is marked as follows: 1. Cooling box; 101. First guide roller; 102. Conveying roller; 2. Support plate; 201. Second guide roller; 3. Mounting frame; 4. Wiping component; 5. Fixing rod; 6. Guide plate; 601. Guide column; 602. Through hole; 7. Mounting plate; 8. Motor; 9. First rotating shaft; 10. Cylindrical cam; 11. Second rotating shaft; 1101. Stirring blade; 12. First gear; 13. Second gear; 14. Water tank. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] The first aspect of this utility model proposes a cooling structure for hot melt adhesive strip production, such as... Figure 1-4 As shown, the device includes a cooling box 1 and first guide rollers 101 located at the top of both ends of the cooling box 1. The cooling box 1 has conveying rollers 102 inside. It should be noted that multiple conveying rollers 102 are installed inside the cooling box 1 to support and guide the hot melt adhesive strip as it meanders through the cooling water for thorough cooling. The device also includes: A support plate 2 is fixed to the end of the cooling box 1, and a second guide roller 201 is fixed on the support plate 2, which is at the same height as the first guide roller 101. It should be noted that the first guide roller 101 and the second guide roller 201 are at the same height, which can ensure the smooth transition of the rubber strip. At least one mounting bracket 3 is fixed to the surface of the support plate 2, and a wiping element 4 is provided on one side of the mounting bracket 3; A fixing rod 5 is located on one side of the mounting bracket 3 and below the wiping component 4. A guide plate 6 is slidably mounted on the fixing rod 5. A guide post 601 is symmetrically fixed at the bottom of the guide plate 6. Its upper end overlaps the end of the wiping component 4 and has a through hole 602 that is collinear with the central axis of the wiping component 4. It should be noted that the through hole 602 at the upper end of the guide plate 6 allows the adhesive strip to pass through. A mounting plate 7 is fixed to one side of the bottom of the support plate 2. A motor 8 is provided on the surface of the mounting plate 7. The output end of the motor 8 is connected to a first rotating shaft 9, and one end of the first rotating shaft 9 is rotatably mounted on the side wall of the cooling box 1. A cylindrical cam 10 is fixed to the surface of the first rotating shaft 9. The surface of the cylindrical cam 10 has a raised ridge, and two guide posts 601 are respectively placed on both sides of the raised ridge. When the motor 8 is started, the first rotating shaft 9 and the cylindrical cam 10 rotate at a constant speed. When the cylindrical cam 10 rotates, the contour of its raised ridge will periodically and alternately push the two guide posts 601, thereby driving the guide plate 6 to make a continuous and reciprocating linear motion along the fixed rod 5, which serves to automatically squeeze the moisture inside the wiping part 4, facilitating the adsorption and cleaning of moisture on the surface of the adhesive strip.

[0020] In this embodiment, the wiping component 4 consists of two semi-circular parts, symmetrically fixed to one side of the mounting frame 3, with their axes collinear with the central axis of the second guide roller 201. It should be noted that the wiping component 4 is preferably two semi-circular blocks that fit together to form a complete circle, with a central opening for the adhesive strip to pass through, thereby achieving omnidirectional wrapping and wiping of the adhesive strip surface.

[0021] In this embodiment: the wiping component 4 is a polyurethane sponge.

[0022] In this embodiment, two mounting frames 3 are provided and symmetrically arranged on the support plate 2, with the guide plate 6 located between the two mounting frames 3. The symmetrical arrangement of the two mounting frames 3 allows the wiping elements 4 on each frame to be positioned on opposite sides of the guide plate 6. As the guide plate 6 moves continuously and reciprocally along the fixed rod 5, when it moves to the left, its right side presses against the right-side wiping element 4; when it moves to the right, its left side presses against the left-side wiping element 4. This periodic pressing of the polyurethane sponge on both sides effectively and promptly removes the saturated moisture absorbed within, maintaining a consistently good semi-dry state and absorbency. This automated process avoids the inefficiencies and unevenness of traditional manual pressing, ensuring continuous, stable, and thorough removal of moisture from the adhesive strip surface. This significantly improves dehydration efficiency and effectiveness, laying a solid foundation for subsequent drying processes, reducing drying energy consumption, and ensuring the quality of the finished adhesive strip.

[0023] In this embodiment, a movable groove is provided in the middle of the support plate 2, and the lower end of the guide plate 6 extends to the bottom of the support plate 2 through the movable groove.

[0024] In this embodiment, the cooling structure further includes a second rotating shaft 11 that is horizontally rotatably installed in the inner cavity of the cooling box 1. One end of the second rotating shaft 11 extends to the outer wall of the cooling box 1 and is fixed with a first gear 12. A second gear 13 is fixed to one end of the first rotating shaft 9, and the second gear 13 meshes with the first gear 12; A stirring blade 1101 is fixed equidistantly along the circumference of the surface of the second rotating shaft 11, and is located below the conveying roller 102. When the first rotating shaft 9 rotates, the second rotating shaft 11 and the stirring blade 1101 are driven to rotate together through the transmission of the gear pair, which strongly agitates the cooling water in the lower part of the cooling tank 1, making the water temperature uniform, thereby significantly improving the overall cooling efficiency and cooling uniformity of the rubber strip.

[0025] In this embodiment, a sealing element is provided between the second rotating shaft 11 and the inner wall of the cooling box 1. The inner ring of the sealing element is rotatably engaged with the second rotating shaft 11, and its outer ring is fixedly installed with the cooling box 1. It should be noted that by setting up the sealing element, and the sealing element being a mechanical seal, which consists of a stationary ring and a rotating ring that are in contact with each other and rotate relative to each other to achieve a seal, the sealing performance inside the cooling box 1 is further improved, and the rotational stability of the second rotating shaft 11 is also improved.

[0026] In this embodiment, a water tank 14 is provided at one end of the cooling box 1, and the water tank 14 is located directly below the moving groove. Under this continuous squeezing action, the cooling water adsorbed inside the two wiping members 4 is continuously squeezed out and drips down the moving groove of the support plate 2 into the water tank 14 below for collection.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0028] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cooling structure for hot melt adhesive strip production, comprising a cooling box (1) and first guide rollers (101) disposed at the top of both ends of the cooling box (1), wherein the inner cavity of the cooling box (1) is provided with conveying rollers (102), characterized in that, Also includes: A support plate (2) is fixed to the end of the cooling box (1), and a second guide roller (201) with the same height as the first guide roller (101) is fixed on the support plate (2). At least one mounting bracket (3) is fixed to the surface of the support plate (2), and a wiping element (4) is provided on one side of the mounting bracket (3); A fixing rod (5) is provided on one side of the mounting bracket (3) and located below the wiping component (4). A guide plate (6) is slidably installed on the fixing rod (5). A guide post (601) is symmetrically fixed at the bottom of the guide plate (6). Its upper end overlaps the end of the wiping component (4) and has a through hole (602) that is collinear with the central axis of the wiping component (4). A mounting plate (7) is fixed to one side of the bottom of the support plate (2). A motor (8) is provided on the surface of the mounting plate (7). The output end of the motor (8) is connected to a first rotating shaft (9), and one end of the first rotating shaft (9) is rotatably mounted on the side wall of the cooling box (1). A cylindrical cam (10) is fixed to the surface of the first rotating shaft (9). The surface of the cylindrical cam (10) has a ridge, and two guide posts (601) are respectively placed on both sides of the ridge.

2. The cooling structure for hot melt adhesive strip production according to claim 1, characterized in that, The wiping component (4) consists of two semi-circular components, which are symmetrically fixed to one side of the mounting frame (3), and the axes of the two components are collinear with the central axis of the second guide roller (201).

3. The cooling structure for hot melt adhesive strip production according to claim 2, characterized in that, The wiping component (4) is a polyurethane sponge.

4. A cooling structure for hot melt adhesive strip production according to claim 1 or 2, characterized in that, Two mounting brackets (3) are provided and are symmetrically arranged on the support plate (2), and the guide plate (6) is located between the two mounting brackets (3).

5. The cooling structure for hot melt adhesive strip production according to claim 1, characterized in that, The support plate (2) has a moving groove in the middle, and the lower end of the guide plate (6) extends to the bottom of the support plate (2) through the moving groove.

6. The cooling structure for hot melt adhesive strip production according to claim 1, characterized in that, The cooling structure also includes a second rotating shaft (11) that is horizontally rotatably installed in the inner cavity of the cooling box (1). One end of the second rotating shaft (11) extends to the outer wall of the cooling box (1) and is fixed with a first gear (12). A second gear (13) is fixed to one end of the first rotating shaft (9), and the second gear (13) meshes with the first gear (12); A stirring blade (1101) is fixed equidistantly along the circumference to the surface of the second rotating shaft (11), and the stirring blade (1101) is located below the conveying roller (102).

7. The cooling structure for hot melt adhesive strip production according to claim 6, characterized in that, A sealing element is provided between the second rotating shaft (11) and the inner wall of the cooling box (1). The inner ring of the sealing element is rotatably engaged with the second rotating shaft (11), and its outer ring is fixedly installed with the cooling box (1).

8. The cooling structure for hot melt adhesive strip production according to claim 5, characterized in that, A water tank (14) is provided at one end of the cooling box (1), and the water tank (14) is located directly below the moving trough.

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