Toilet paper perforating machine with adjustable hole distance

Abstract

The utility model discloses a toilet paper perforating machine capable of adjusting hole pitch, which comprises a support, the support stretches over a toilet paper conveying belt, a mounting groove is arranged in the support, a two-way screw is arranged in the mounting groove, two sides of the two-way screw are symmetrically connected with moving blocks, and the moving blocks are connected with the mounting groove in a sliding mode. The movable blocks are connected through a scissor-type telescopic connecting rod, and a row of pneumatic punching elements are arranged below the scissor-type telescopic connecting rod. According to the pneumatic punching device, the characteristic that the crossed connecting rods stretch out and draw back synchronously is utilized, so that the distance between the pneumatic punching elements is still equal after stretching out and drawing back, the hole distance is equal, and the punching attractiveness and practicability are improved; the shape of the scissor-fork type telescopic connecting rod is limited, and the scissor-fork type telescopic connecting rod is prevented from deforming or slightly falling down in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of toilet paper production, in particular to a toilet paper punching machine with adjustable hole spacing. Background Art

[0002] As consumers' demands for a higher quality of life continue to rise, toilet paper products are constantly innovating to meet the diverse needs of the market. Perforated toilet paper, in particular, is widely popular due to its advantages such as ease of tearing and ease of use. However, in existing perforating equipment, the perforating elements are typically arranged at a fixed spacing. This makes it difficult to adjust the spacing between the perforating elements and, therefore, the hole spacing, based on the toilet paper's material and diverse usage requirements, making it difficult to adapt to production needs. Utility Model Content

[0003] The purpose of the utility model is to provide a toilet paper punching machine with adjustable hole spacing, which has the advantages of adjustable hole spacing, synchronously changing spacing and uniform hole opening, and solves the problems in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A toilet paper punching machine with adjustable hole spacing includes a bracket, which spans above a toilet paper conveyor belt. A mounting slot is provided in the bracket, and a bidirectional screw is provided in the mounting slot. Moving blocks are symmetrically connected on both sides of the bidirectional screw. The moving blocks are slidably connected to the mounting slot. The moving blocks are connected by a scissor-type telescopic connecting rod. A row of pneumatic punching elements is provided below the scissor-type telescopic connecting rod.

[0006] Preferably, threads with opposite spiral directions are respectively provided on both sides of the bidirectional screw, and one end of the bidirectional screw passes through the bracket and is connected to the adjustment motor fixed on the outer side wall of the bracket.

[0007] Preferably, both ends of the bidirectional screw are rotatably connected to the bracket.

[0008] Preferably, a screw hole cooperating with the bidirectional screw is provided on the side of the moving block, and a through slot connected to the mounting slot is further provided on the bottom surface of the bracket, and the moving block passes through the through slot.

[0009] Preferably, two sides of the moving block are provided with card slots, and the moving block is connected to the bracket through the card slots.

[0010] Preferably, the scissor-type telescopic link is composed of several groups of cross links, the ends of two adjacent groups of cross links are hinged to each other, the middle part of the cross links is hinged by a pin, and the pneumatic punching element is installed at the bottom end of the pin.

[0011] Preferably, a support plate is further provided below the bracket, both ends of the support plate are fixed to the bracket, and a through slot for the support plate to pass through is provided on the moving block.

[0012] Preferably, a clamping piece is provided on the top of the pin shaft, the clamping piece is in an I-shaped structure, the clamping piece passes through a limiting groove provided on the support plate, and the clamping piece is slidably connected to the support plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. When adjusting the hole spacing of toilet paper punching, the utility model drives the bidirectional screw to rotate by adjusting the motor. The bidirectional screw causes the moving blocks on both sides to move toward or away from each other. The moving blocks drive the two ends of the scissor-type telescopic connecting rod to move and expand and contract, and then drive the pneumatic punching element to expand and contract through the pin shaft. By utilizing the synchronous expansion and contraction characteristics between the cross-links, the spacing between the pin shafts changes equally, so that the distance between the pneumatic punching elements remains equal after expansion and contraction, achieving equal hole spacing and improving the aesthetics and practicality of the punching.

[0015] 2. The support plate provided in the present invention generates an upward pulling force on the scissor-type telescopic connecting rod through the clamping parts and the pin shaft, thereby limiting the shape of the scissor-type telescopic connecting rod and preventing the scissor-type telescopic connecting rod from being deformed or slightly falling during use, thereby ensuring that the pneumatic punching elements are kept on the same horizontal line and preventing the uneven distribution of toilet paper openings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the first axonometric drawing of the overall structure of the utility model;

[0017] Figure 2 This is the second axonometric drawing of the overall structure of the utility model;

[0018] Figure 3 This is a cross-sectional view of the internal structure of the bracket of the present utility model;

[0019] Figure 4 This is an axonometric view of the scissor-type telescopic connecting rod of the present utility model.

[0020] In the figure: 1. bracket; 2. mounting slot; 3. bidirectional screw; 4. moving block; 5. scissor-type telescopic connecting rod; 6. pneumatic punching element; 7. adjusting motor; 8. through slot; 9. limiting slot; 10. clamping slot; 11. pin shaft; 12. support plate; 13. through slot; 14. clamping part. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In order to solve the problem in the prior art that the punching elements need to be adjusted sequentially when adjusting the punching spacing, and the problem of not being able to adjust synchronously and maintain equal hole spacing is provided, the following technical solution is provided. Figure 1-4 ;

[0023] A toilet paper punching machine with adjustable hole spacing includes a bracket 1, which spans above a toilet paper conveyor belt. A mounting groove 2 is provided in the bracket 1, and a bidirectional screw 3 is provided in the mounting groove 2. Moving blocks 4 are symmetrically connected on both sides of the bidirectional screw 3. The moving blocks 4 are slidably connected to the mounting groove 2. The moving blocks 4 are connected by a scissor-type telescopic connecting rod 5. A row of pneumatic punching elements 6 is provided below the scissor-type telescopic connecting rod 5.

[0024] Two sides of the bidirectional screw 3 are provided with threads with opposite helical directions. One end of the bidirectional screw 3 extends through the bracket 1 and is connected to an adjustment motor 7 fixed to the outer wall of the bracket 1. Both ends of the bidirectional screw 3 are rotatably connected to the bracket 1. The side of the moving block 4 is provided with a screw hole that mates with the bidirectional screw 3. The bottom surface of the bracket 1 also has a through slot 8 connected to the mounting slot 2, and the moving block 4 extends through the through slot 8. The moving block 4 is provided with a locking slot 10 on both sides, through which the moving block 4 is locked to the bracket 1. The adjustment motor 7 drives the bidirectional screw 3 to rotate, and the bidirectional screw 3, through the threaded engagement, enables the two moving blocks 4 on either side to move toward or away from each other in the mounting slot 2.

[0025] The scissor-type telescopic link 5 is composed of several groups of cross links. The ends of two adjacent groups of cross links are hinged to each other, and the middle of the cross links are hinged by a pin 11. The pneumatic punching element 6 is mounted on the bottom end of the pin 11. When the moving block 4 moves toward or away from each other, the moving block 4 drives the two ends of the scissor-type telescopic link 5 to expand and contract, and then drives the pneumatic punching element 6 to expand and contract through the pin 11. When the scissor-type telescopic link 5 is extended, the spacing between the pneumatic punching elements 6 increases, thereby increasing the perforation spacing of the toilet paper. When the scissor-type telescopic link 5 is retracted, the spacing between the pneumatic punching elements 6 decreases, thereby reducing the perforation spacing of the toilet paper. Because the scissor-type telescopic link 5 has the characteristic of synchronous expansion and contraction, the spacing between the pins 11 changes equally, so that the distance between the pneumatic punching elements 6 remains equal after expansion and contraction. After the pneumatic punching elements 6 punch holes in the toilet paper below, their hole spacing can remain consistent, thereby improving aesthetics and practicality.

[0026] A support plate 12 is also provided below the bracket 1. Both ends of the support plate 12 are fixed to the bracket 1. A through slot 13 is provided on the moving block 4 for the support plate 12 to pass through. A clip 14 is provided on the top of the pin 11. The clip 14 is in an "I"-shaped structure. The clip 14 passes through the limiting slot 9 provided on the support plate 12. The clip 14 is slidably connected to the support plate 12. When the scissor-type telescopic link 5 is extended or retracted, the pin 11 drives the clip 14 to slide in the limiting slot 9. At the same time, the support plate 12 generates an upward pulling force on the scissor-type telescopic link 5 through the clip 14 and the pin 11, limiting the shape of the scissor-type telescopic link 5 and preventing the scissor-type telescopic link 5 from being deformed or slightly falling during use, thereby ensuring that the pneumatic punching elements 6 are all kept on the same horizontal line, preventing the toilet paper openings from being unevenly distributed.

[0027] Working principle: The adjusting motor 7 drives the bidirectional screw 3 to rotate, and the bidirectional screw 3 makes the moving blocks 4 on both sides move toward or away from each other in the installation groove 2 through threaded cooperation. The moving blocks 4 drive the two ends of the scissors-type telescopic link 5 to make it telescope, and then drive the pneumatic punching element 6 to telescope through the pin shaft 11. Since the scissors-type telescopic link 5 has the characteristics of synchronous telescopic extension, the spacing between the pin shafts 11 changes equally, so that the distance between the pneumatic punching elements 6 remains equal after extension and contraction, so that the toilet paper hole spacing remains consistent; the support plate 12 generates an upward pulling force on the scissors-type telescopic link 5 through the clamping part 14 and the pin shaft 11 to prevent the scissors-type telescopic link 5 from deformation or slight falling during use.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A toilet paper punching machine with adjustable hole spacing, comprising a bracket (1), characterized in that: The bracket (1) spans above the toilet paper conveyor belt, and a mounting groove (2) is provided in the bracket (1). A bidirectional screw (3) is provided in the mounting groove (2). Moving blocks (4) are symmetrically connected on both sides of the bidirectional screw (3). The moving blocks (4) are slidably connected to the mounting groove (2). The moving blocks (4) are connected to each other through a scissor-type telescopic connecting rod (5). A row of pneumatic punching elements (6) is provided below the scissor-type telescopic connecting rod (5).

2. A toilet paper punching machine with adjustable hole spacing according to claim 1, characterized in that: The two sides of the bidirectional screw (3) are respectively provided with screw threads with opposite spiral directions. One end of the bidirectional screw (3) passes through the bracket (1) and is connected to the adjustment motor (7) fixed on the outer wall of the bracket (1).

3. The toilet paper punching machine with adjustable hole spacing according to claim 2, characterized in that: Both ends of the bidirectional screw (3) are rotatably connected to the bracket (1).

4. The toilet paper punching machine with adjustable hole spacing according to claim 3, characterized in that: The side of the moving block (4) is provided with a screw hole that matches the bidirectional screw rod (3), and the bottom surface of the bracket (1) is also provided with a through slot (8) connected to the mounting slot (2), and the moving block (4) passes through the through slot (8).

5. The toilet paper punching machine with adjustable hole spacing according to claim 4, characterized in that: The movable block (4) is provided with clamping slots (10) on both sides, and the movable block (4) is clamped with the bracket (1) via the clamping slots (10).

6. The toilet paper punching machine with adjustable hole spacing according to claim 5, characterized in that: The scissor-type telescopic connecting rod (5) is composed of a plurality of groups of cross connecting rods, the ends of two adjacent groups of cross connecting rods are hinged to each other, the middle of the cross connecting rods is hinged through a pin shaft (11), and the pneumatic punching element (6) is installed at the bottom end of the pin shaft (11).

7. The toilet paper punching machine with adjustable hole spacing according to claim 6, characterized in that: A support plate (12) is further provided below the bracket (1), both ends of the support plate (12) are fixed to the bracket (1), and a through slot (13) for the support plate (12) to pass through is provided on the moving block (4).

8. The toilet paper punching machine with adjustable hole spacing according to claim 7, characterized in that: A clamping member (14) is provided on the top of the pin shaft (11). The clamping member (14) is in an "I"-shaped structure. The clamping member (14) passes through a limiting groove (9) provided on the support plate (12). The clamping member (14) is slidably connected to the support plate (12).

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