Slitting device for tissue production

Abstract

The utility model discloses a slitting device for tissue production, relates to the related field of tissue production, and aims to solve the problems that the existing slitting device directly sends out slit paper after the paper is slit, the strength of the paper is poor, and when the distance between the slit paper is directly enlarged to be matched with conveying of a plurality of winding lines, the paper is difficult to cut. The outer edge of the bending position of the paper is easily damaged, and the product quality is influenced. Second supporting vertical plates are fixed to the middles of the front end and the rear end of the operation table, and a first conveying roller and a second conveying roller are arranged at the uppermost end and the lowermost end between the two second supporting vertical plates correspondingly and are of the same structure. A middle slitting roller is arranged between the two second supporting vertical plates along the position between the first conveying roller and the second conveying roller. Third supporting vertical plates are fixed to one sides of the front end and the rear end of the operation table, and a third conveying roller and a fourth conveying roller are arranged at the upper end and the lower end between the two third supporting vertical plates correspondingly.

Description

Technical Field

[0001] The utility model relates to the field related to paper towel production, in particular to a slitting device for paper towel production. Background Art

[0002] Paper towels are a kind of daily necessities that can be used to wipe hands, mouth, face, etc. The main raw materials of paper towels are wood pulp, bamboo pulp, straw pulp, mixed pulp, etc. The main types include tissue paper, roll paper, toilet paper, kitchen paper and other types.

[0003] In the production and processing of paper towels, a slitting device is needed to cut the longer paper at equal distances to divide the paper into common width sizes, and then transport it for paper towel production; the slitting device is used in the production of various types of household paper.

[0004] Since the paper is relatively wide, it is transported to multiple winding lines for rewinding and packaging after slitting. However, the current slitting device directly sends out the slit paper after slitting. The strength of the paper itself is poor. When the distance between the slit papers is directly increased to match the transportation of multiple winding lines, the outer edge of the paper bending position is easily damaged, affecting product quality. Utility Model Content

[0005] The utility model aims to provide a slitting device for paper towel production, so as to solve the problem in the above-mentioned background technology that the current slitting device directly delivers the slit paper after slitting, the strength of the paper itself is poor, and when the distance between the slit papers is directly enlarged to match the conveyance of multiple winding lines, the outer edge of the bending position of the paper is easily damaged, thereby affecting the product quality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slitting device for paper towel production, comprising an operating table, a second supporting upright plate is fixed in the middle of the front and rear ends of the operating table, a first conveying roller and a second conveying roller are respectively arranged at the uppermost end and the lowermost end between two second supporting upright plates, the first conveying roller and the second conveying roller have the same structure, and an intermediate slitting roller is arranged between the two second supporting upright plates along the first conveying roller and the second conveying roller;

[0007] A third supporting upright plate is fixed to one side of the front and rear ends of the operating table, and a third conveying roller and a fourth conveying roller are respectively arranged at the upper and lower ends between the two third supporting upright plates, and the third conveying roller and the fourth conveying roller both include a third intermediate shaft, a third outer sleeve is arranged in the middle of the outside of the third intermediate shaft, and third outer stop rings are arranged along the two ends of the third outer sleeve on the outside of the third intermediate shaft, and intermediate dividing rings are fixed equidistantly from front to back on the outside of the third outer sleeve, and a paper conveying interval is formed between two adjacent intermediate dividing rings and between the intermediate dividing ring and the third outer stop ring, and the size of the paper conveying interval on the third conveying roller is smaller than the size of the paper conveying interval on the fourth conveying roller.

[0008] Preferably, the intermediate slitting roller includes a second intermediate shaft, a second outer sleeve is arranged in the middle of the outside of the second intermediate shaft, second outer retaining rings are arranged on the outside of the second intermediate shaft along both ends of the second outer sleeve, annular grooves are arranged on the outside of the second outer sleeve at equal distances from the front to the back, a slitting knife is fixed in the annular groove, the slitting knife is located on the side away from the third conveying roller and the fourth conveying roller, and the slitting blade of the slitting knife is arranged to face upward.

[0009] Preferably, a first supporting upright plate is fixed to the front and rear ends of the other side of the upper end of the operating table, an upper groove is provided in the middle of the upper end surface of the first supporting upright plate, and the lower end surface of the upper groove is arc-shaped.

[0010] Preferably, the lower end of the upper slot is rotatably connected to a rotating ball via an axis.

[0011] Preferably, the first conveying roller and the second conveying roller are both composed of a first intermediate shaft, a first outer sleeve and a first outer retaining ring, the first outer sleeve is located in the middle of the outside of the first intermediate shaft, and the first outer retaining ring is located in the middle of the outside of the first intermediate shaft along both ends of the first outer sleeve.

[0012] Preferably, a driving motor is installed at the lower end of the rear end of the second supporting vertical plate, and the output shaft end of the driving motor is connected to the first intermediate shaft on the second conveying roller.

[0013] Preferably, legs are welded and fixed on both sides of the front and rear ends of the operating table.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, the slit paper reaches the third conveying roller position after the transition through the second conveying roller and is guided out, and contacts and guides out with the fourth conveying roller in an "S" shape. When the slit paper contacts the third conveying roller, it is blocked by the middle dividing ring to reach different paper conveying intervals, and the subsequent conveying also reaches different paper conveying intervals on the fourth conveying roller. Since the different paper conveying intervals on the fourth conveying roller are larger than the different paper conveying intervals on the third conveying roller, and the distance between the different paper conveying intervals on the third conveying roller is larger than the distance between the slit papers outside the second conveying roller, the papers are separated step by step, and the distance between the slit papers is gradually expanded. The angle of the bending point when the paper is conveyed is small, and the tensile force on the paper after bending at a small angle is smaller than that when bending at a large angle, which solves the problem that the current slitting device directly sends out the slit paper after slitting the paper, the strength of the paper itself is poor, and when the distance between the slit papers is directly expanded to match the conveyance of multiple winding lines, the outer edge of the bending position of the paper is easily damaged, affecting the product quality.

[0016] In the utility model, one end of the paper is introduced from the oblique upper end of the first conveying roller to contact the first conveying roller, and is guided out from the oblique lower end in the same direction of the first conveying roller, and is guided out in an "S" shape to contact and lead out with the second conveying roller, and is introduced from the oblique lower end of the third conveying roller after the transition through the second conveying roller, and is guided out from the oblique lower end after wrapping around the third outer sleeve on the third conveying roller for more than half a circle, and is guided out from the oblique lower end in an "S" shape to contact and lead out with the fourth conveying roller. Compared with direct flat conveying, it can maintain a certain tension of the paper, which is conducive to the slitting and conveying work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a slitting device for paper towel production according to the utility model;

[0018] Figure 2 It is a top view of a slitting device for paper towel production according to the utility model;

[0019] Figure 3 It is a side view of a slitting device for paper towel production according to the utility model;

[0020] Figure 4 It is a schematic diagram of the overall structure of a slitting device for paper towel production according to the utility model from a side view;

[0021] Figure 5 This is an enlarged view of the structure of location A of a slitting device for paper towel production according to the utility model.

[0022] In the figure: 1. operating table; 2. supporting legs; 3. first supporting plate; 4. upper slot; 5. rotating ball; 6. second supporting plate; 7. first conveying roller; 8. second conveying roller; 9. first intermediate shaft; 10. first outer sleeve; 11. first outer retaining ring; 12. driving motor; 13. intermediate slitting roller; 14. second intermediate shaft; 15. second outer retaining ring; 16. second outer sleeve; 17. annular slot; 18. slitting knife; 19. third supporting plate; 20. third conveying roller; 21. fourth conveying roller; 22. third intermediate shaft; 23. third outer sleeve; 24. third outer retaining ring; 25. intermediate dividing ring; 26. paper conveying section. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-5 The utility model provides an embodiment: a slitting device for paper towel production, including an operating table 1, legs 2 are welded and fixed on both sides of the front and rear ends of the operating table 1, a second supporting upright plate 6 is fixed in the middle of the front and rear ends of the operating table 1, a third supporting upright plate 19 is fixed on one side of the front and rear ends of the operating table 1, a first supporting upright plate 3 is fixed at the front and rear ends of the other side of the upper end of the operating table 1, an upper slot 4 is opened in the middle of the upper end surface of the first supporting upright plate 3, the middle core of the paper roll is placed in the upper slot 4 of the first supporting upright plate 3, the lower end surface of the upper slot 4 is arc-shaped, and the lower end of the upper slot 4 is rotatably connected to a rotating ball 5 through an axis, which does not hinder the rotation of the paper.

[0025] The uppermost and lowermost ends between the two second supporting plates 6 are respectively provided with the first conveying roller 7 and the second conveying roller 8. The first conveying roller 7 and the second conveying roller 8 have the same structure. The first conveying roller 7 and the second conveying roller 8 are both composed of a first intermediate shaft 9, a first outer sleeve 10 and a first outer retaining ring 11. The first outer sleeve 10 is located in the middle of the outside of the first intermediate shaft 9, and the first outer retaining ring 11 is located in the middle of the outside of the first intermediate shaft 9 along the two ends of the first outer sleeve 10; a driving motor 12 is installed at the lower end of the rear end of the second supporting plate 6, and the output shaft end of the driving motor 12 is connected to the first intermediate shaft 9 on the second conveying roller 8 for slitting drive guidance.

[0026] An intermediate slitting roller 13 is arranged between the two second supporting uprights 6 along the first conveying roller 7 and the second conveying roller 8; the intermediate slitting roller 13 includes a second intermediate shaft 14, a second outer sleeve 16 is arranged in the middle of the outside of the second intermediate shaft 14, and second outer retaining rings 15 are arranged on the outside of the second intermediate shaft 14 along the two ends of the second outer sleeve 16. The outside of the second outer sleeve 16 is provided with annular grooves 17 equidistantly from front to back, and a slitting knife 18 is fixed in the annular groove 17. The slitting knife 18 is located on the side away from the third conveying roller 20 and the fourth conveying roller 21, and the slitting blade of the slitting knife 18 is arranged to face upward. Since the paper conveyed between the first conveying roller 7 and the second conveying roller 8 contacts the slitting blade of the slitting knife 18, the paper is equidistantly slit into multiple copies.

[0027] A third conveying roller 20 and a fourth conveying roller 21 are respectively provided at the upper end and the lower end between the two third supporting uprights 19. The third conveying roller 20 and the fourth conveying roller 21 both include a third intermediate shaft 22. A third outer sleeve 23 is provided in the middle of the outside of the third intermediate shaft 22. A third outer stop ring 24 is provided on the outside of the third intermediate shaft 22 along both ends of the third outer sleeve 23. Intermediate dividing rings 25 are fixed equidistantly from front to back on the outside of the third outer sleeve 23. A paper conveying section 26 is formed between two adjacent intermediate dividing rings 25 and between the intermediate dividing ring 25 and the third outer stop ring 24. The size of the paper conveying section 26 on the third conveying roller 20 is smaller than that of the paper conveying section 26 on the fourth conveying roller 21, thereby gradually guiding the paper outward and reducing the single bending angle of the paper.

[0028] The multiple outer stop rings are mainly used to limit the positions of the two ends of the paper so that the paper will not be rolled into the driving structure.

[0029] Working principle: The middle core of the paper roll is placed in the upper slot 4 of the first supporting plate 3, one end of the paper is guided to be introduced from the oblique upper end of the first conveying roller 7 to contact the first conveying roller 7, and is guided out from the oblique lower end in the same direction of the first conveying roller 7, and is contacted and guided out with the second conveying roller 8 in an "S" shape; since the paper conveyed between the first conveying roller 7 and the second conveying roller 8 contacts the slitting knife 18, the paper is cut into multiple pieces at equal distances.

[0030] After the slit paper passes through the second conveying roller 8, it is introduced from the oblique lower part of the third conveying roller 20, and after it goes around the third outer sleeve 23 on the third conveying roller 20 for more than half a circle, it is guided out from the oblique lower part, and contacts and guides out with the fourth conveying roller 21 in an "S" shape. When the slit paper contacts the third conveying roller 20, it is blocked by the middle separation ring 25 to reach the different paper conveying section 26, and then it is transported to the different paper conveying section 26 on the fourth conveying roller 21. Since the different paper conveying section 26 on the fourth conveying roller 21 is larger than the different paper conveying section 26 on the third conveying roller 20, and the distance between the different paper conveying section 26 on the third conveying roller 20 and the slit paper outside the second conveying roller 8 is larger, the paper is separated step by step, and then transported to the starting position of different winding lines (the overall size of the device is relatively large, and the actual difference between the different paper conveying section 26 on the fourth conveying roller 21 and the different paper conveying section 26 on the third conveying roller 20 is larger than the difference between the figure, and the figure only shows the position relationship and connection relationship, and does not completely represent the size relationship).

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A slitting device for paper towel production, comprising an operating table (1), characterized in that: A second supporting upright plate (6) is fixed in the middle of the front and rear ends of the operating table (1); a first conveying roller (7) and a second conveying roller (8) are respectively arranged at the uppermost end and the lowermost end between the two second supporting upright plates (6); the first conveying roller (7) and the second conveying roller (8) have the same structure; and an intermediate slitting roller (13) is arranged between the two second supporting upright plates (6) along the first conveying roller (7) and the second conveying roller (8); A third supporting upright plate (19) is fixed to one side of the front and rear ends of the operating table (1); a third conveying roller (20) and a fourth conveying roller (21) are respectively arranged at the upper end and the lower end between the two third supporting upright plates (19); the third conveying roller (20) and the fourth conveying roller (21) both comprise a third intermediate shaft (22); a third outer sleeve (23) is arranged in the middle of the outside of the third intermediate shaft (22); third outer stop rings (24) are arranged along both ends of the third outer sleeve (23) outside the third intermediate shaft (22); intermediate dividing rings (25) are fixed to the outside of the third outer sleeve (23) at equal intervals from front to back; a paper conveying section (26) is formed between two adjacent intermediate dividing rings (25) and between the intermediate dividing ring (25) and the third outer stop ring (24); the size of the paper conveying section (26) on the third conveying roller (20) is smaller than the size of the paper conveying section (26) on the fourth conveying roller (21).

2. A slitting device for paper towel production according to claim 1, characterized in that: The intermediate slitting roller (13) comprises a second intermediate shaft (14), a second outer sleeve (16) is arranged in the middle of the exterior of the second intermediate shaft (14), second outer retaining rings (15) are arranged on the exterior of the second intermediate shaft (14) along both ends of the second outer sleeve (16), annular grooves (17) are arranged on the exterior of the second outer sleeve (16) at equal intervals from front to back, a slitting knife (18) is fixed in the annular groove (17), the slitting knife (18) is located on a side away from the third conveying roller (20) and the fourth conveying roller (21), and the slitting blade of the slitting knife (18) is arranged to face upwards.

3. A slitting device for paper towel production according to claim 1, characterized in that: A first supporting upright plate (3) is fixed to the front and rear ends of the other side of the upper end of the operating table (1); an upper slot (4) is provided in the middle of the upper end surface of the first supporting upright plate (3); and the lower end surface of the upper slot (4) is arc-shaped.

4. A slitting device for paper towel production according to claim 3, characterized in that: The lower end of the upper slot (4) is rotatably connected to a rotating ball (5) via a shaft.

5. A slitting device for paper towel production according to claim 1, characterized in that: The first conveying roller (7) and the second conveying roller (8) are both composed of a first intermediate shaft (9), a first outer sleeve (10) and a first outer retaining ring (11); the first outer sleeve (10) is located in the middle of the outside of the first intermediate shaft (9); and the first outer retaining ring (11) is located in the middle of the outside of the first intermediate shaft (9) along both ends of the first outer sleeve (10).

6. A slitting device for paper towel production according to claim 5, characterized in that: A drive motor (12) is installed at the lower end of the rear end of the second supporting upright plate (6), and the output shaft end of the drive motor (12) is connected to the first intermediate shaft (9) on the second conveying roller (8).

7. A slitting device for paper towel production according to claim 1, characterized in that: Support legs (2) are welded and fixed on both sides of the front and rear ends of the operating table (1).

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