Four-roller gluing machine

Abstract

The invention provides a four-roller gluing machine which comprises a first roller, a second roller, a third roller, a fourth roller, two side plates, a glue groove, a cloth guide assembly, two first adjusting assemblies and a second adjusting assembly, the two side plates are vertically and fixedly arranged in parallel, the two ends of the first roller are rotationally connected with the two side plates respectively, and the two ends of the third roller are rotationally connected with the two side plates respectively. The glue tank is arranged below the first roller and connected with the side plate, and the bottom of the first roller is located in the glue tank; the first roller, the second roller, the third roller and the fourth roller are parallel to one another, the second roller is located on the left side of the first roller, the third roller is located above the first roller, and the fourth roller is located on the right side of the third roller; the second adjusting assembly is rotationally connected with the two ends of the third roller and used for enabling the third roller to move in the vertical direction. According to the gluing machine, special equipment is prepared for different base materials, and the application range of the gluing machine is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of glue applicators, and particularly to a four-roller glue applicator. Background Art

[0002] A glue applicator is a device that evenly coats liquid glue, adhesive, or other coatings on the surface of an object through mechanical or automated means. Its core function is to achieve efficient, precise, and controllable glue application operations, replacing manual labor to improve production efficiency and glue application quality. The glue applicator can apply glue to the surfaces of different substrates, and the substrates generally include paper substrates and cloth substrates. When applying glue to paper substrates and cloth substrates, different thicknesses of glue need to be coated. Usually, dedicated equipment needs to be configured to coat paper substrates and cloth substrates respectively, which increases the cost. Therefore, there is a need for a glue applicator that can coat paper substrates and cloth substrates. Summary of the Invention

[0003] Aiming at the deficiencies in the prior art, the present invention provides a four-roller glue applicator, which solves the problem in the prior art that dedicated equipment needs to be configured for different substrates, increasing the cost.

[0004] According to an embodiment of the present invention, a four-roller glue applicator includes a first roller, a second roller, a third roller, a fourth roller, two side plates, a glue tank, a cloth guiding assembly, two first adjustment assemblies, and a second adjustment assembly. The two side plates are vertically and fixedly arranged and parallel to each other. The two ends of the first roller are respectively rotatably connected to the two side plates. The glue tank is arranged below the first roller and connected to the side plates. The bottom of the first roller is located inside the glue tank. The first roller, the second roller, the third roller, and the fourth roller are parallel to each other. The second roller is located on the left side of the first roller, the third roller is located above the first roller, and the fourth roller is located on the right side of the third roller. The two first adjustment assemblies are respectively rotatably connected to the two ends of the second roller and the fourth roller, and are used to make the second roller contact or disengage from the first roller, and the fourth roller contact or disengage from the third roller. The second adjustment assembly is rotatably connected to the two ends of the third roller and is used to move the third roller in the vertical direction.

[0005] The technical principle of the present invention is as follows: When the cloth substrate rolls into contact with the third roller, the first roller and the third roller roll into contact and coat the coating from the glue tank onto the surface of the cloth substrate; when the paper substrate rolls into contact with the fourth roller, the first roller, the second roller, and the third roller flatten the coating and then coat it onto the surface of the paper substrate.

[0006] Preferably, the fabric guiding assembly includes two or more fabric guiding rollers. Both ends of the fabric guiding rollers are rotatably connected to the side plates. The fabric guiding rollers are used to make the base material rollingly contact with the third roller or the fourth roller. The fabric guiding assembly enables the base material to enter from one side of the side plate and leave from the other side.

[0007] Preferably, the first adjustment assembly includes two first swing arms, two first cylinders, and two first servo hydraulic cylinders. The upper ends of the two first swing arms are rotatably connected to the ends of the second roller. The middle of the first swing arm is rotatably connected to the side plate. The movable end of the first cylinder is rotatably connected to the side plate. The fixed end of the first cylinder is rotatably connected to the lower end of the first swing arm. The first cylinder is used to push the first swing arm to rotate. The first servo hydraulic cylinder is arranged on the rotation track of the lower end of the first swing arm and is used to accurately limit the first swing arm.

[0008] Preferably, the second adjustment assembly includes two second swing arms, two second cylinders, and two second servo hydraulic cylinders. One end of the two second swing arms is rotatably connected to the end of the third roller. The other end of the second swing arm extends horizontally. The middle of the second swing arm is rotatably connected to the side plate. The second cylinder is vertically arranged below the second swing arm. The movable end of the second cylinder is rotatably connected to the side plate. The fixed end of the second cylinder is rotatably connected to the other end of the second swing arm. The second cylinder is used to push the second swing arm to rotate. The second servo hydraulic cylinder is arranged above the second cylinder and on the rotation track of the second swing arm. The second servo hydraulic cylinder is used to accurately limit the second swing arm.

[0009] Preferably, the first swing arm and the second swing arm are of a double-layer structure. The side plate is located inside the double-layer structure. Connecting blocks and contact blocks are respectively arranged at both ends of the first swing arm and the second swing arm. The connecting block is rotatably connected to the end of the roller. The contact block is located on the movement track of the hydraulic push rod of the first servo hydraulic cylinder or the second servo hydraulic cylinder.

[0010] Preferably, guide rails parallel to the side plates are horizontally arranged on both sides below the glue tank. An electric slider for driving the glue tank to move is fixedly arranged at the bottom of the glue tank. The bottoms of the two guide rails are fixedly connected with a support frame. A plurality of lead screws are symmetrically and fixedly arranged at the bottom of the support frame. A lift body is connected to the lead screw. A cross beam for fixed connection is arranged between the lift body and the side plate. A dual-axis motor is fixedly arranged in the middle of the cross beam. The output shafts at both ends of the dual-axis motor are respectively coaxially and fixedly connected to the input shafts of the lift body.

[0011] Preferably, a plurality of support rods are arranged between the two side plates; a scraper shaft is fixedly arranged between the two side plates on the movement track of the base material, and a scraping strip is fixedly arranged on the scraper shaft.

[0012] Preferably, the diameter of the second roller is smaller than that of the first roller.

[0013] Compared with the prior art, the present invention has the following beneficial effects: By independently controlling the contact states of the second and fourth rollers through two groups of first adjustment components, and cooperating with the vertical lifting of the third roller driven by the second adjustment component, a three-dimensionally adjustable roller gap matrix is formed. When the first roller and the third roller are in rolling contact, the cloth paper base material can be coated; when the first roller, the second roller, the third roller, and the fourth roller are in sequential rolling contact, the paper base material can be accurately coated. This gluing machine can meet the requirements of different base materials for permeability and bonding strength. A single machine can achieve the coating of base materials of different materials and the free switching between two process modes, breaking through the limitation of the single function of traditional models and reducing the need for purchasing special equipment. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the lead screw drive of the present invention.

[0016] In the above-mentioned drawings: 1, side plate; 2, first roller; 3, second roller; 4, third roller; 5, fourth roller; 6, first servo hydraulic cylinder; 7, first cylinder; 8, first swing arm; 9, contact block; 10, connecting block; 11, second cylinder; 12, second swing arm; 13, second servo hydraulic cylinder; 14, cloth guiding component; 15, glue tank; 16, support rod; 17, scraping strip; 18, guide rail; 19, support frame; 20, cross beam; 21, double-shaft motor; 22, elevator main body; 23, lead screw. Detailed Embodiments

[0017] The technical solutions in the present invention will be further described below with reference to the drawings and embodiments.

[0018] As Figure 1As shown in the figure, an embodiment of the present invention provides a four-roll gluing machine, which includes a first roller 2, a second roller 3, a third roller 4, a fourth roller 5, two side plates 1, a glue tank 15, a cloth guiding assembly 14, two first adjustment assemblies and a second adjustment assembly. The two side plates 1 are vertically and fixedly arranged and parallel to each other. The distance between the two side plates 1 is the same as the lengths of the first roller 2, the second roller 3, the third roller 4 and the fourth roller 5, and is also greater than the width of the substrate. The two ends of the first roller 2 are respectively rotatably connected to the two side plates 1. Bearings are provided at the ends of the first roller 2 for connection with the side plates 1 to reduce the resistance during rotation. The glue tank 15 is arranged below the first roller 2 and connected to the side plates 1. The bottom of the first roller 2 is located inside the glue tank 15. When the first roller 2 rotates, it picks up the coating. The first roller 2, the second roller 3, the third roller 4 and the fourth roller 5 are parallel to each other. The second roller 3 is located on the left side of the first roller 2, the third roller 4 is located above the first roller 2, and the fourth roller 5 is located on the right side of the third roller 4. The two first adjustment assemblies are respectively rotatably connected to the two ends of the second roller 3 and the fourth roller 5, and are used to make the second roller 3 contact or disengage from the first roller 2, and the fourth roller 5 contact or disengage from the third roller 4. The second adjustment assembly is rotatably connected to the two ends of the third roller 4 and is used to move the third roller 4 in the vertical direction. When gluing a paper substrate, the first roller 2 and the third roller 4 are in rolling contact. The paper substrate passes around the third roller 4, and the first roller 2 presses on the other side of the paper substrate. When gluing a cloth substrate, the second roller 3 moves to be in rolling contact with the first roller 2, the third roller 4 is in rolling contact with the first roller 2, and the fourth roller 5 moves to be in rolling contact with the third roller 4. The cloth substrate passes around the fourth roller 5, and the third roller 4 presses on the other side of the cloth substrate.

[0019] Preferably, the cloth guiding assembly 14 includes two or more cloth guiding rollers. The two ends of the cloth guiding rollers are rotatably connected to the side plates 1. The cloth guiding rollers are used to make the substrate in rolling contact with the third roller 4 or the fourth roller 5. The cloth guiding assembly 14 enables the substrate to enter from one side of the side plates 1 and leave from the other side. To improve the working efficiency of the gluing machine, the gluing machine generally consists of several different devices to form a continuous production line. The cloth guiding assembly 14 enables the substrate to form a V-shaped movement trajectory with the third roller 4 or the fourth roller 5 after moving above the coating machine, so as to facilitate the gluing operation.

[0020] Preferably, the first adjustment assembly includes two first swing arms 8, two first cylinders 7, and two first servo hydraulic cylinders 6. The upper ends of the two first swing arms 8 are rotatably connected to the ends of the second roller 3. The middle of the first swing arm 8 is rotatably connected to the side plate 1. The movable end of the first cylinder 7 is rotatably connected to the side plate 1, and the fixed end of the first cylinder 7 is rotatably connected to the lower end of the first swing arm 8. The first cylinder 7 is used to push the first swing arm 8 to rotate. The first servo hydraulic cylinder 6 is arranged on the rotation track of the lower end of the first swing arm 8 and is used to accurately limit the first swing arm 8. The first swing arm 8 is of a long strip structure. The first adjustment assembly drives the second roller 3 and the fourth roller 5 to move through the lever principle, avoiding the contact between the second roller 3, the fourth roller 5 and the cloth substrate. The body of the first servo hydraulic cylinder 6 is fixedly connected to the side plate 1.

[0021] Preferably, the second adjustment assembly includes two second swing arms 12, two second cylinders 11, and two second servo hydraulic cylinders 13. One end of the two second swing arms 12 is rotatably connected to the end of the third roller 4. The other end of the second swing arm 12 extends horizontally. The middle of the second swing arm 12 is rotatably connected to the side plate 1. The second cylinder 11 is vertically arranged below the second swing arm 12. The movable end of the second cylinder 11 is rotatably connected to the side plate 1, and the fixed end of the second cylinder 11 is rotatably connected to the other end of the second swing arm 12. The second cylinder 11 is used to push the second swing arm 12 to rotate. The second servo hydraulic cylinder 13 is arranged above the second cylinder 11 and on the rotation track of the second swing arm 12. The second servo hydraulic cylinder 13 is used to accurately limit the second swing arm 12. The working principle of the second adjustment assembly is the same as that of the first adjustment assembly. When the second adjustment assembly moves the third roller 4 upward, it is convenient to pass the substrate under the third roller 4.

[0022] Preferably, the first swing arm 8 and the second swing arm 12 are of a double-layer structure to improve the structural stability. The side plate 1 is located inside the double-layer structure, making the whole compact. Connecting blocks 10 and contact blocks 9 are respectively arranged at both ends of the first swing arm 8 and the second swing arm 12. The connecting block 10 is rotatably connected to the end of the roller. The contact block 9 is located on the movement track of the hydraulic push rod of the first servo hydraulic cylinder 6 or the second servo hydraulic cylinder 13. The setting of the connecting block 10 facilitates the fixed connection with the bearing at the end of the roller. The contact block 9 contacts the hydraulic push rod of each servo hydraulic cylinder, avoiding the deformation of each swing arm structure.

[0023] As Figure 2As shown, preferably, guide rails 18 parallel to the side plates 1 are horizontally arranged on both sides below the glue tank 15, and an electric slider for driving the movement of the glue tank 15 is fixedly arranged at the bottom of the glue tank 15. The bottoms of the two guide rails 18 are fixedly connected with a support frame 19, and a number of lead screws 23 are symmetrically and fixedly arranged at the bottom of the support frame 19. An elevator main body 22 is connected to the lead screw 23, and a cross beam 20 for fixed connection is arranged between the elevator main body 22 and the side plate 1. A double-shaft motor 21 is fixedly arranged in the middle of the cross beam 20, and the output shafts at both ends of the double-shaft motor 21 are coaxial and fixedly connected with the input shaft of the elevator main body 22 respectively. When the glue in the glue tank 15 needs to be adjusted, the motor drives the elevator main body 22 to work, so that when the lead screw 23 rotates, it makes an axial movement, and the support frame 19 at the top of the lead screw 23 drives the glue tank 15 to move downward, and then the electric slider drives the glue tank 15 to move horizontally to facilitate the position for the staff to add the glue. After the replenishment is completed, the glue tank 15 is moved below the first roller 2 so that the first roller 2 can contact the glue in the glue tank 15. The elevator main body 22 is provided with a worm gear, and the worm gear meshes with the lead screw 23.

[0024] Preferably, a number of support rods 16 are arranged between the two side plates 1 to make the overall structure stable. A scraper shaft is fixedly arranged between the two side plates 1 on the movement track of the base material, and a scraper strip 17 is fixedly arranged on the scraper shaft.

[0025] Preferably, the diameter of the second roller 3 is smaller than that of the first roller 2 to avoid the second roller 3 contacting the glue in the glue tank 15, so as to accurately control the amount of glue applied.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A four-roller glue coating machine, characterized in that: The invention comprises a first roller (2), a second roller (3), a third roller (4), a fourth roller (5), two side panels (1), a glue groove (15), a cloth guide assembly (14), two first adjustment assemblies and a second adjustment assembly, wherein the two side panels (1) are vertically fixed and parallel to each other, the two ends of the first roller (2) are rotatably connected to the two side panels (1), the glue groove (15) is arranged below the first roller (2) and connected to the side panels (1), and the bottom of the first roller (2) is located inside the glue groove (15); the first roller (2), the second roller (3), and the third roller The first roller (4) and the fourth roller (5) are parallel to each other, the second roller (3) is located on the left side of the first roller (2), the third roller (4) is located above the first roller (2), and the fourth roller (5) is located on the right side of the third roller (4); the two first adjustment components are rotatably connected to the two ends of the second roller (3) and the fourth roller (5), respectively, for making the second roller (3) contact or disengage with the first roller (2), and the fourth roller (5) contact or disengage with the third roller (4); the second adjustment component is rotatably connected to the two ends of the third roller (4) and is used to make the third roller (4) move in a vertical direction.

2. A four-roller glue coating machine as claimed in claim 1, characterized in that: The cloth guide assembly (14) comprises two or more cloth guide rollers, both ends of which are rotatably connected to the side plate (1), and the cloth guide rollers are used to make the substrate and the third roller (4) or the fourth roller (5) come into rolling contact; the cloth guide assembly (14) allows the substrate to enter from one side of the side plate (1) and leave from the other side.

3. A four-roller glue coating machine as claimed in claim 1, characterized in that: The first adjustment assembly comprises two first rocker arms (8), two first cylinders (7) and two first servo hydraulic cylinders (6); the upper ends of the two first rocker arms (8) are rotatably connected to the end of the second roller (3); the middle of the first rocker arm (8) is rotatably connected to the side plate (1); the movable end of the first cylinder (7) is rotatably connected to the side plate (1); the fixed end of the first cylinder (7) is rotatably connected to the downward end of the first rocker arm (8); the first cylinder (7) is used to push the first rocker arm (8) to rotate; and the first servo hydraulic cylinder (6) is arranged on the rotation trajectory of the downward end of the first rocker arm (8) and is used to accurately limit the position of the first rocker arm (8).

4. A four-roller glue coating machine as claimed in claim 3, characterized in that: The second adjustment assembly comprises two second rocker arms (12), two second cylinders (11), and two second servo hydraulic cylinders (13); one end of the two second rocker arms (12) is rotatably connected to the end of the third roller (4); the other end of the second rocker arm (12) extends laterally; the middle part of the second rocker arm (12) is rotatably connected to the side plate (1); the second cylinder (11) is vertically arranged below the second rocker arm (12); the movable end of the second cylinder (11) is rotatably connected to the side plate (1); the fixed end of the second cylinder (11) is rotatably connected to the other end of the second rocker arm (12); the second cylinder (11) is used to push the second rocker arm (12) to rotate; the second servo hydraulic cylinder (13) is arranged above the second cylinder (11) and on the rotation trajectory of the second rocker arm (12); the second servo hydraulic cylinder (13) is used to accurately limit the second rocker arm (12).

5. A four-roller glue coating machine as claimed in claim 4, characterized in that: The first rocker arm (8) and the second rocker arm (12) are double-layer structures, the side plate (1) is located inside the double-layer structure, and the two ends of the first rocker arm (8) and the second rocker arm (12) are respectively provided with a connecting block (10) and a contact block (9); the connecting block (10) is rotatably connected to the end of the roller; the contact block (9) is located on the motion track of the hydraulic push rod of the first servo hydraulic cylinder (6) or the second servo hydraulic cylinder (13).

6. A four-roller glue coating machine as claimed in claim 1, characterized in that: Guide rails (18) parallel to the side panels (1) are horizontally arranged on both sides below the glue groove (15); an electric slider for driving the glue groove (15) to move is fixedly arranged at the bottom of the glue groove (15); a support frame (19) is fixedly connected to the bottom of the two guide rails (18); a plurality of lead screws (23) are symmetrically fixedly arranged at the bottom of the support frame (19); a lift body (22) is connected to the lead screws (23); a crossbeam (20) for fixed connection is arranged between the lift body (22) and the side panels (1); a dual-axis motor (21) is fixedly arranged in the middle of the crossbeam (20); the output shafts at both ends of the dual-axis motor (21) are coaxial with the input shaft of the lift body (22) and are fixedly connected.

7. A four-roller glue coating machine as claimed in claim 1, characterized in that: A plurality of support rods (16) are arranged between the two side plates (1); a scraper shaft is fixedly arranged between the two side plates (1) on the movement track of the substrate, and a scraper strip (7) is fixedly arranged on the scraper shaft.

8. A four-roller glue coating machine as claimed in claim 1, characterized in that: The diameter of the second roller (3) is smaller than that of the first roller (2).

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