Tissue crease squeezing device

Abstract

The utility model relates to a tissue crease squeezing device which comprises two squeezing rollers which are located on the two sides of a tissue and are opposite in rotation direction, and a first long hole and a second long hole which extend in the axial direction of the squeezing rollers and are oppositely arranged are formed in the circumferential faces of the two squeezing rollers respectively. A first rotating shaft and a second rotating shaft which correspond to the first long hole and the second long hole respectively are further coupled in the extrusion roller, a pressing plate extending into the long hole is fixedly connected to the first rotating shaft, a pressing cone extending into the first long hole is fixedly connected to the second rotating shaft, and a power structure for driving the first rotating shaft and the second rotating shaft to rotate is further correspondingly arranged on the extrusion roller. Through the arrangement of the two extrusion rollers, the power structure, the first rotating shaft, the second rotating shaft, the pressing plate, the pressing cone, the first long hole and the second long hole, the process of folding marks in the continuous conveying process of tissues is achieved, and therefore the production efficiency of the tissues is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of paper towel production, in particular to the technical field of continuous paper towel production, and specifically refers to a paper towel crease extrusion device. Background Art

[0002] Paper towels are daily necessities. The ingredients of paper towels include chlorine, bleaching powder, alcohol, wood pulp and renewable resources. There are many kinds of paper towels.

[0003] In the process of making household paper from virgin wood pulp, in order to achieve better softness, manufacturers will add a certain amount of virgin short wood pulp fibers into the pulp. However, the combination of short fibers and other long fibers is not very strong, so during use, a very small amount of short fibers will escape, which is commonly known as "paper powder".

[0004] Since paper towels have a large surface area, they are folded before packaging for easy transportation. Therefore, when paper towels are produced, creases are made on the continuous paper towels to facilitate folding, so as to facilitate folding during later cutting. Due to the continuous transmission of paper towels, the extrusion of creases seriously affects production efficiency. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a paper towel crease squeezing device which is suitable for continuous transmission of paper towels and ensures the crease efficiency of paper towels, thereby ensuring the production of paper towels.

[0006] The utility model is realized through the following technical scheme: a paper towel crease squeezing device, comprising two squeezing rollers located on both sides of the paper towel and rotating in opposite directions, the circumferential surfaces of the two squeezing rollers are respectively provided with a first long hole and a second long hole extending along the axial direction and arranged opposite to each other, the squeezing rollers are also axially connected with a first rotating shaft and a second rotating shaft arranged corresponding to the first long hole and the second long hole respectively, the first rotating shaft is fixedly connected with a pressure plate extending into the long hole, the second rotating shaft is fixedly connected with a pressure cone extending into the first long hole, and the corresponding squeezing rollers are also provided with a power structure that drives the first rotating shaft and the second rotating shaft to rotate.

[0007] When the utility model is in use, the paper towel passes through between the two squeezing rollers. When the first long hole and the second long hole rotate to a position tangent to the two squeezing rollers, the power structure drives the second rotating shaft to rotate. The rotation of the second rotating shaft drives the pressing cone to rotate along the rotation direction of the corresponding squeezing roller, so that the pressing cone drives the paper towel to be inserted into the first long hole. At the same time, the power structure drives the pressing plate to rotate in the opposite direction of the rotation direction of the corresponding squeezing roller, so that the pressing plate squeezes the paper towel and the pressing cone, thereby forming an extrusion of the paper towel fold. As the two squeezing rollers continue to rotate, the pressing cone leaves the first perforation, and the first rotating shaft continues to drive the pressing roller to squeeze the paper towel onto the side wall of the first long hole, thereby deepening the fold. After rotating a certain angle, the first rotating shaft drives the pressing roller to rotate in the opposite direction, thereby releasing the squeezing of the paper towel. The paper towel leaves the first long hole under the action of the traction force of the subsequent process. Through the arrangement of the two squeezing rollers, the power structure, the first rotating shaft, the second rotating shaft, the pressing plate, the pressing cone, the first long hole and the second long hole, the process of folding the paper towel during the continuous transmission of the paper towel is realized, thereby ensuring the production efficiency of the paper towel.

[0008] Preferably, the power structure includes a cam located directly above the squeezing roller, the two cams are symmetrically arranged about the paper towel, the top surfaces of the first rotating shaft and the second rotating shaft are fixedly connected to a fixed plate located on the top surface of the squeezing roller, a roller rolling along the circumferential surface of the cam is also axially connected to the fixed plate, and a vertical plate is also provided on the top surface of the squeezing roller, and a tension spring is provided on the vertical plate to drive the roller to the circumferential surface of the cam.

[0009] When this preferred solution is in use, the tension spring drives the fixed plate to rotate around the first rotating shaft / second rotating shaft, so that the roller on the fixed plate is always against the cam. When the rotation radius of the roller changes, the spring tension drives the fixed plate to rotate inward or outward. The rotation of the fixed plate drives the corresponding first rotating shaft and second rotating shaft to rotate. The rotation of the first rotating shaft and the second rotating shaft drives the corresponding pressure plate and pressure cone to rotate in the first long hole and the second long hole, so that the pressure cone drives the paper towel to extend into the first perforation, the pressure plate squeezes the fold of the paper towel, and the pressure plate releases the squeezing of the paper towel.

[0010] Preferably, the squeezing roller is provided with a first long hole and a second long hole, and the axis of the first rotating shaft, the axis of the second rotating shaft, and the axis of the squeezing roller are located on the same plane.

[0011] In this preferred solution, a first long hole and a second long hole are provided on the same squeezing roller, so as to shorten the distance between the two folds and meet the needs of customers.

[0012] Preferably, in the rotation direction of the squeezing roller, the first rotating shaft is located in front of the corresponding roller, and the second rotating shaft is located behind the corresponding roller.

[0013] When this preferred solution is in use, a pressure cone is connected to the second rotating shaft, and the pressure cone needs to rotate in advance relative to the pressure plate. Therefore, the roller is located in front of the corresponding second rotating shaft, so that the second rotating shaft rotates in advance, and the roller is located behind the corresponding first rotating shaft, so that the pressure plate can rotate and squeeze the paper towel after the pressure cone is inserted into the first long hole.

[0014] Preferably, a connecting plate is fixedly connected to the side of the fixing plate close to the roller, and a through hole for hanging a tension spring is formed on the connecting plate.

[0015] When the preferred solution is in use, the installation and replacement of the tension spring is facilitated by the arrangement of the perforations on the connecting plate.

[0016] Preferably, the rotating shaft of the squeezing roller extends upward, passes through the cam shaft and is connected to the bracket, and the tension spring is hung on the corresponding connecting plate after passing around the cam.

[0017] In this preferred solution, the tension spring is arranged to bypass the cam, thereby increasing the length of the tension spring and making the elastic force change more uniform.

[0018] Preferably, a driven gear is fixedly connected to the rotating shaft of the squeezing roller, the two driven gears are meshed with each other, and a power device for driving a driven gear to rotate is also provided on the bracket.

[0019] In this preferred solution, the two driven gears are meshed with each other, so that the two squeezing rollers can rotate synchronously.

[0020] Preferably, one squeezing roller corresponds to two cams, the two cams are arranged along the height direction, and the rollers are arranged corresponding to the cams.

[0021] In this preferred solution, two cams and two corresponding rollers are arranged to serve as backup for each other, thereby ensuring normal folding of the paper towel.

[0022] The beneficial effects of the utility model are as follows: when the paper towel passes through the two squeezing rollers, when the first long hole and the second long hole rotate to the tangent position between the two squeezing rollers, the power structure drives the second rotating shaft to rotate, and the rotation of the second rotating shaft drives the pressing cone to rotate along the rotation direction of the corresponding squeezing roller, so that the pressing cone drives the paper towel to be inserted into the first long hole. At the same time, the power structure drives the pressing plate to rotate in the opposite direction of the rotation direction of the corresponding squeezing roller, so that the pressing plate is squeezed onto the paper towel and the pressing cone, thereby forming an extrusion on the fold of the paper towel. As the two squeezing rollers continue to rotate , the pressing cone leaves the first perforation, and the first rotating shaft continues to drive the pressing roller to squeeze the paper towel onto the side wall of the first long hole, thereby deepening the crease. After rotating a certain angle, the first rotating shaft drives the pressing roller to rotate in the opposite direction, thereby releasing the squeezing of the paper towel. The paper towel leaves the first long hole under the action of the traction force of the subsequent process. Through the arrangement of two squeezing rollers, a power structure, a first rotating shaft, a second rotating shaft, a pressing plate, a pressing cone, a first long hole and a second long hole, the process of crease the paper towel during continuous transmission is realized, thereby ensuring the production efficiency of the paper towel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0024] Figure 2 It is a top view schematic diagram of the structure of the utility model;

[0025] Figure 3 It is a top view schematic diagram of the tension spring;

[0026] Figure 4 is a top view schematic diagram of the pressing cone being inserted into the first through hole;

[0027] As shown in the figure:

[0028] 1. First rotating shaft, 2. Second rotating shaft, 3. Pressing plate, 4. Pressing cone, 5. Extrusion roller, 6. Cam, 7. Roller, 8. Tension spring, 9. Fixed plate, 10. Driven gear, 11. First long hole, 12. Second long hole, 13. Vertical plate, 14. Connecting plate, 15. Continuously conveyed paper towels. DETAILED DESCRIPTION

[0029] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0030] See attached Figure 1-4 The utility model is a paper towel fold squeezing device, comprising two squeezing rollers 5 located on both sides of the paper towel and rotating in opposite directions, a driven gear 10 is fixedly connected to the rotating shaft of the squeezing roller 5, the two driven gears 10 are meshed with each other, and a power device for driving a driven gear 10 to rotate is also provided on the bracket, the power device comprises a motor, and a driving gear meshing with a driven gear 10 is fixedly connected to the rotating shaft of the motor.

[0031] The circumferential surfaces of the two squeezing rollers 5 are respectively provided with a first long hole 11 and a second long hole 12 extending along the axial direction and arranged opposite to each other. The squeezing roller 5 is also axially connected with a first rotating shaft 1 and a second rotating shaft 2 which are respectively arranged corresponding to the first long hole 11 and the second long hole 12. The first rotating shaft 1 is fixedly connected with a pressure plate 3 extending into the long hole, and the second rotating shaft 2 is fixedly connected with a pressure cone 4 extending into the first long hole 11. The corresponding squeezing roller 5 is also provided with a power structure for driving the first rotating shaft 1 and the second rotating shaft 2 to rotate. The first rotating shaft 1 and the second rotating shaft 2 are both rotatably connected to the squeezing roller 5.

[0032] The power structure includes a cam 6 located directly above the squeezing roller 5. The rotating shaft of the squeezing roller 5 extends upward and passes through the cam 6 and is then connected to the bracket. The cam 6 is fixed to the bracket. The axis of the cam 6 is colinear with the axis of the rotating shaft of the squeezing roller 5. The two cams 6 are symmetrically arranged about the paper towel. The top surfaces of the first rotating shaft 1 and the second rotating shaft 2 are fixed to a fixed plate 9 located on the top surface of the squeezing roller 5. The fixed plate 9 is also axially connected to a roller 7 that rolls along the circumferential surface of the cam 6. Two cams 6 are arranged directly above one squeezing roller 5. The two cams 6 are arranged in the height direction. Two rollers 7 are also provided, and the two rollers 7 roll on the two cams 6 respectively.

[0033] A vertical plate 13 is also provided on the top surface of the squeezing roller 5, and a tension spring 8 is provided on the vertical plate 13 for driving the roller 7 to push onto the circumferential surface of the cam 6. The tension spring 8 is hung on the corresponding connecting plate 14 after passing around the cam 6. The connecting plate 14 is fixedly connected to the side of the fixed plate 9 close to the roller 7, and a through hole is opened on the connecting plate 14 for hanging the tension spring 8.

[0034] The same squeezing roller 5 is provided with a first long hole 11 and a second long hole 12, and the axis of the first rotating shaft 1, the axis of the second rotating shaft 2, and the axis of the squeezing roller 5 are located on the same plane. In the rotation direction of the squeezing roller 5, the first rotating shaft 1 is located in front of the rotation of the corresponding roller 7, and the second rotating shaft 2 is located behind the rotation of the corresponding roller 7, that is, on the same squeezing roller 5, the fixed plate 9 connected to the first rotating shaft 1 and the fixed plate 9 connected to the second rotating shaft 2 are symmetrically arranged about the radial direction of the squeezing roller 5.

[0035] Since two tension springs 8 are disposed on the same squeezing roller 5 , in order to avoid interference between the two tension springs 8 , the two tension springs 8 are arranged along the height direction.

[0036] When the utility model is in use, the tension spring 8 drives the fixed plate 9 to rotate around the first rotating shaft 1 / the second rotating shaft 2, so that the roller 7 on the fixed plate 9 always presses against the cam 6. When the rotation radius of the roller 7 changes, the fixed plate 9 is driven to rotate inward or outward under the action of the spring tension. The rotation of the fixed plate 9 drives the corresponding first rotating shaft 1 and the second rotating shaft 2 to rotate. The rotation of the first rotating shaft 1 and the second rotating shaft 2 drives the corresponding pressing plate 3 and the pressing cone 4 to rotate in the first long hole 11 and the second long hole 12.

[0037] The paper towel passes through between the two squeezing rollers 5. When the first long hole 11 and the second long hole 12 rotate to the tangent position between the two squeezing rollers 5, under the guidance of the cam 6, the rolling radius of the roller 7 becomes smaller, and the second rotating shaft 2 is driven to rotate through the fixed plate 9. The rotation of the second rotating shaft 2 drives the pressing cone 4 to rotate along the rotation direction of the corresponding squeezing roller 5, so that the pressing cone 4 drives the paper towel to be inserted into the first long hole 11;

[0038] At the same time, on the other squeezing roller 5, under the guidance of the cam 6, the rolling radius of the roller 7 becomes smaller, and the fixed plate 9 drives the first rotating shaft 1 to rotate, thereby driving the pressing plate 3 to rotate in the opposite direction of the rotation direction of the squeezing roller 5, so that the pressing plate 3 is squeezed onto the paper towel and the pressing cone 4, thereby squeezing the fold of the paper towel;

[0039] As the two squeezing rollers 5 continue to rotate, the pressing cone 4 leaves the first perforation, and the first rotating shaft 1 continues to drive the pressing roller to squeeze the paper towel onto the side wall of the first long hole 11 under the action of the tension spring 8, thereby deepening the fold. After rotating a certain angle, under the guidance of the cam 6, the rolling radius of the roller 7 increases, and the first rotating shaft 1 drives the pressing roller to rotate in the opposite direction, thereby releasing the squeezing of the paper towel. The paper towel leaves the first long hole 11 under the action of the traction force of the subsequent process. Similarly, when the rolling radius of the roller 7 increases, it drives the pressing cone 4 to reset.

[0040] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A tissue crease squeezing device, characterized in that: The invention comprises two squeezing rollers (5) located on both sides of a paper towel and rotating in opposite directions. The circumferential surfaces of the two squeezing rollers (5) are respectively provided with a first long hole (11) and a second long hole (12) extending along the axial direction thereof and arranged opposite to each other. The squeezing rollers (5) are also axially connected with a first rotating shaft (1) and a second rotating shaft (2) respectively arranged corresponding to the first long hole (11) and the second long hole (12). The first rotating shaft (1) is fixedly connected with a pressure plate (3) extending into the long hole. The second rotating shaft (2) is fixedly connected with a pressure cone (4) extending into the first long hole (11). The corresponding squeezing rollers (5) are also provided with a power structure for driving the first rotating shaft (1) and the second rotating shaft (2) to rotate.

2. The tissue fold squeezing device according to claim 1, characterized in that: The power structure comprises a cam (6) located directly above the squeezing roller (5), the two cams (6) being symmetrically arranged with respect to the paper towel, the top surfaces of the first rotating shaft (1) and the second rotating shaft (2) being fixedly connected to a fixed plate (9) located on the top surface of the squeezing roller (5), the fixed plate (9) also being axially connected to a roller (7) rolling along the circumferential surface of the cam (6), the top surface of the squeezing roller (5) also being provided with a vertical plate (13), the vertical plate (13) being provided with a tension spring (8) for driving the roller (7) to push against the circumferential surface of the cam (6).

3. The tissue crease squeezing device according to claim 2, characterized in that: The squeezing roller (5) is provided with a first long hole (11) and a second long hole (12); the axis of the first rotating shaft (1), the axis of the second rotating shaft (2), and the axis of the squeezing roller (5) are located on the same plane.

4. The tissue fold squeezing device according to claim 3, characterized in that: In the rotation direction of the squeezing roller (5), the first rotating shaft (1) is located in front of the corresponding roller (7), and the second rotating shaft (2) is located behind the corresponding roller (7).

5. The tissue fold squeezing device according to claim 3, characterized in that: A connecting plate (14) is fixedly connected to the side of the fixing plate (9) close to the roller (7), and a through hole for the tension spring (8) to be hung is provided on the connecting plate (14).

6. The tissue crease squeezing device according to claim 5, characterized in that: The rotating shaft of the squeezing roller (5) extends upward, passes through the cam (6), and is axially connected to the bracket. The tension spring (8) bypasses the cam (6) and is hung on the corresponding connecting plate (14).

7. The tissue fold squeezing device according to claim 1, characterized in that: A driven gear (10) is fixedly connected to the rotating shaft of the squeezing roller (5), and the two driven gears (10) are meshed with each other. A power device for driving a driven gear (10) to rotate is also provided on the bracket.

8. The tissue fold squeezing device according to claim 2, characterized in that: One squeezing roller (5) corresponds to two cams (6), the two cams (6) are arranged along the height direction, and the roller (7) is arranged corresponding to the cams (6).

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