Tissue folding machine capable of improving working efficiency

Abstract

The tissue folding machine comprises two parallel tissue folding rollers, a bearing claw, a first conveying belt and a second conveying belt are arranged below the tissue folding rollers, the height distance between the first conveying belt and the tissue folding rollers is large, and the height distance between the second conveying belt and the tissue folding rollers is small. The bearing claw can reach the position close to the first conveying belt and the position close to the second conveying belt, and a first paper feeding mechanism for moving paper stacks stacked on the bearing claw to the first conveying belt and a second paper feeding mechanism for moving the paper stacks stacked on the bearing claw to the second conveying belt are further arranged. The tissue folding machine has the advantages that when the stacking height of a tissue stack is high, the bearing claw moves to the first conveying belt far away from the tissue folding roller, so that the requirement for the stacking height of the tissue stack is met; and when the stacking height of the paper stack is relatively low, the bearing claw moves to the second conveying belt which is relatively close to the paper folding roller, so that the bearing claw is prevented from additionally walking for a section of unnecessary stroke, and the working efficiency of the tissue folding machine is improved.

Description

Technical Field

[0001] The utility model relates to paper processing equipment, in particular to a paper towel folding machine for producing folded paper towels. Background Art

[0002] A tissue folding machine for producing folded tissue paper is equipped with two parallel folding rollers and support claws located below the rollers. A continuous stream of paper passes through the gap between the rollers and is folded into individual sheets. The sheets then fall onto the support claws and are stacked into a stack. Existing tissue folding machines have a conveyor belt below the rollers. Whenever the stack of paper on the support claws reaches a predetermined height, the support claws descend to a position adjacent to the conveyor belt, transferring the stack onto the conveyor belt. To minimize the time it takes for the support claws to move to the conveyor belt, the distance between the conveyor belt and the folding rollers should be minimized, but not less than the minimum height of the stack on the support claws. However, different tissue products require different stack heights, and the distance between the conveyor belt and the folding rollers cannot be less than the maximum stack height. This results in the support claws having to move an unnecessary distance when producing tissue products with smaller stack heights, reducing the machine's efficiency. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned defects of the prior art and provide a paper towel folding machine which can improve the working efficiency.

[0004] The utility model is implemented as follows: a paper towel folding machine for improving work efficiency includes two parallel paper folding rollers, and a supporting claw that performs lifting and horizontal movements is provided below the paper folding rollers. Papers output from the roller gap of the two paper folding rollers fall on the supporting claws and are stacked into paper stacks. In particular, a first conveyor belt and a second conveyor belt are provided below the paper folding rollers. The first conveyor belt is at a greater height distance from the paper folding rollers, and the second conveyor belt is at a closer height distance from the paper folding rollers. The supporting claw that performs lifting and lowering movements can reach a position adjacent to the first conveyor belt and a position adjacent to the second conveyor belt. A first paper feeding mechanism for moving the paper stack stacked on the supporting claws to the first conveyor belt and a second paper feeding mechanism for moving the paper stack stacked on the supporting claws to the second conveyor belt are also provided.

[0005] As the best embodiment, when the supporting claw reaches a position adjacent to the first conveyor belt, the supporting surface of the supporting claw supporting the paper is located directly above the first conveyor belt, and when the supporting claw reaches a position adjacent to the second conveyor belt, the supporting surface of the supporting claw supporting the paper is located beside the second conveyor belt; the first paper feeding mechanism is provided with a paper stop located beside the first conveyor belt, and when the supporting claw is located adjacent to the first conveyor belt and away from the first conveyor belt in the horizontal direction, the paper stop blocks one side of the paper stack supported by the supporting claw, so that the paper stack cannot move horizontally with the supporting claw, thereby causing the paper stack to fall onto the first conveyor belt; the second paper feeding mechanism is provided with a paper pusher close to the second conveyor belt, and when the supporting claw is located adjacent to the second conveyor belt, the paper pusher is located on the side of the paper stack supported by the supporting claw that is away from the second conveyor belt, and the paper pusher pushes the paper stack onto the second conveyor belt.

[0006] The advantage of this utility model is that different conveyor belts can be selected according to the required stacking height of the paper towel products. When the stacking height is high, the support claws move to the first conveyor belt farther from the folding roller to meet the required stacking height. When the stacking height is low, the support claws move to the second conveyor belt closer to the folding roller, avoiding unnecessary travel of the support claws and improving the operating efficiency of the paper towel folder. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0008] Figure 2 This is a schematic diagram of the supporting claw reaching a position close to the first conveyor belt;

[0009] Figure 3 is a schematic diagram of the supporting claw moving away from the first conveyor belt in the horizontal direction;

[0010] Figure 4 It is a schematic diagram of the push cardboard moving to the position ready to push the paper stack;

[0011] Figure 5 This is a schematic diagram of the supporting claw reaching a position close to the second conveyor belt;

[0012] Figure 6 It is a schematic diagram of a push cardboard pushing a paper stack from the supporting claws to the second conveyor belt. DETAILED DESCRIPTION

[0013] To facilitate understanding of the present invention, a more comprehensive description is provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided solely to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0014] It should be noted that when an element is considered to be “connected to” another element, it can be directly connected to the other element or there may be an intervening element.

[0015] See also Figure 1 , a paper towel folding machine that improves work efficiency includes two parallel folding rollers 1, and a supporting claw 2 that can perform both lifting and horizontal movements is provided below the folding rollers 1. The continuous paper material 3 passes through the roller gap between the two folding rollers 1 and becomes folded paper sheets. The paper falls on the supporting claw 2 and is stacked into a paper pile 4. In particular, a first conveyor belt 5 and a second conveyor belt 6 are provided below the folding roller 1. The travel directions of the first conveyor belt 5 and the second conveyor belt 6 are perpendicular to the plane of the drawing. The first conveyor belt 5 is at a greater height distance from the folding roller 1, and the second conveyor belt 6 is at a closer height distance from the folding roller 1. The supporting claw 2 can be used as Figure 2 As shown, it reaches the position near the first conveyor belt 5, and can Figure 5 As shown, it reaches a position adjacent to the second conveyor belt 6. The paper towel folding machine is also provided with a first paper feeding mechanism for moving the paper stack stacked on the supporting claws to the first conveyor belt 5, and a second paper feeding mechanism for moving the paper stack stacked on the supporting claws to the second conveyor belt 6.

[0016] As the best embodiment, when the supporting claw 2 is Figure 2 When the paper supporting surface of the supporting claw 2 reaches the position close to the first conveyor belt 5, the supporting surface of the supporting claw 2 is located directly above the first conveyor belt 5. The first paper feeding mechanism is provided with a paper stopper 7 located beside the first conveyor belt 5. Figure 2 As shown, it reaches the position adjacent to the first conveyor belt 5 and then Figure 3 As shown in the figure, when the first conveyor belt 5 is moved away from the first conveyor belt 5 in the horizontal direction, the paper plate 7 is as shown in the figure. Figure 3 The support claw 2 blocks one side of the paper stack 4 supported by the support claw 2 , so that the paper stack 4 cannot move in the horizontal direction along with the support claw 2 , thereby causing the paper stack 4 to fall onto the first conveyor belt 5 .

[0017] As the best embodiment, when the supporting claw 2 is Figure 5 When the supporting claw 2 reaches the position close to the second conveyor belt 6, the supporting surface of the supporting claw 2 for supporting the paper is located beside the second conveyor belt 6. The second paper feeding mechanism is provided with a pushing paper board 8 close to the second conveyor belt 6. Figure 5When the paper stack 4 is supported by the supporting claw 2 and the paper stack 4 is supported by the supporting claw 2, the paper stack 4 is located on the side facing away from the second conveyor belt 6. Figure 6 It is shown that the paper stack 4 is pushed from the support claws 2 onto the second conveyor belt 6 .

[0018] The following is a more detailed description of the operation process of this embodiment with reference to the accompanying drawings. Figure 1 The folded paper sheets output from the nip between the two folding rollers 1 are continuously stacked on the supporting claws 2 to form a paper stack 4. The supporting claws 2 gradually descend as the height of the paper stack 4 increases. Assuming that the paper towel product to be produced requires a higher stack height, when the paper stack 4 reaches the predetermined height, the supporting claws 2 immediately descend as the paper stack 4 reaches the predetermined height. Figure 2 As shown, it descends to a position close to the first conveyor belt 5, and another supporting member 9 temporarily catches the paper that continues to fall from the roller gap of the paper folding roller 1. Figure 3 As shown, the supporting claw 2 moves horizontally away from the first conveyor belt 5, and the paper stopper 7 blocks the paper stack 4, preventing the paper stack 4 from moving horizontally with the supporting claw 2, causing the paper stack 4 to fall onto the first conveyor belt 5. The first conveyor belt 5 conveys the paper stack 4 to the next process. After the paper stack 4 is transferred to the first conveyor belt 5, the supporting claw 2 immediately rises and returns to pick up the paper that was temporarily caught by another supporting member 9, and the supporting member 9 then returns to its original position. At this point, the paper towel folding machine returns to the original position. Figure 1 The status shown. Repeatedly Figures 1 to 3 The process can continuously deliver piles of paper towels with higher stacking heights from the first conveyor belt 5.

[0019] If the paper towel product to be produced requires a shorter stack height, the difference from the above-mentioned action process is that the push cardboard 8 is pre- Figure 4 As shown in FIG, the paper stack 4 on the supporting claw 2 is moved to the position where the paper stack is ready to be pushed. Whenever the paper stack 4 on the supporting claw 2 reaches a predetermined height, the supporting claw 2 immediately moves as shown in FIG. Figure 5 As shown, it descends to a position adjacent to the second conveyor belt 6, and then Figure 6 As shown, the push paper board 8 pushes the paper stack 4 supported by the supporting claw 2 onto the second conveyor belt 6, and the second conveyor belt 6 sends the paper stack 4 to the next process. Figures 4 to 6 The process can continuously send out piles of paper towels with shorter stacking heights from the second conveyor belt 6.

[0020] The mechanism driving the lifting and horizontal movement of the support claw 2, as well as the mechanism driving the pusher plate 8, can employ conventional mechanisms such as a pneumatic cylinder, a crank slider mechanism, or a linear motor. The mechanism driving the horizontal movement of the support claw 2 can be mounted on a component that rises and falls with the support claw 2. The paper retainer 7 can be fixed to the frame of the tissue folder.

[0021] It should be noted that the supporting claw 2, the retaining paper board 7 and the pushing paper board 8 are staggered in the horizontal direction, so the three are not shown in the accompanying drawings (for example Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 ) Even if they appear to overlap, no collision will occur. In order to stagger the supporting claws 2, the retaining plate 7, and the pushing plate 8 in the horizontal direction, the three can be made into a comb shape, with the comb teeth arranged in a direction perpendicular to the plane of the drawing, and the comb teeth of the three staggered with each other.

[0022] It should be noted that the accompanying drawings simplify the structure of the paper towel folder and omit structures that are not relevant to the purpose of the present invention. For example, the specific structure of the two paper folding rollers (also called "folding rollers") is simplified.

[0023] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection of the utility model patent. It should be noted that a person of ordinary skill in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A paper towel folding machine for improving work efficiency comprises two parallel folding rollers, below which are provided supporting claws for lifting and horizontal movement. Paper sheets discharged from the gap between the two folding rollers fall onto the supporting claws and are stacked into a paper stack. The machine is characterized by: A first conveyor belt and a second conveyor belt are provided below the paper folding roller. The first conveyor belt is at a greater height distance from the paper folding roller, while the second conveyor belt is at a closer height distance from the paper folding roller. The supporting claws that perform lifting and lowering movements can reach positions close to both the first and second conveyor belts. A first paper feeding mechanism for moving the paper stacks stacked on the supporting claws to the first conveyor belt and a second paper feeding mechanism for moving the paper stacks stacked on the supporting claws to the second conveyor belt are also provided.

2. The paper towel folding machine for improving work efficiency according to claim 1, characterized in that: When the supporting claw reaches a position close to the first conveyor belt, the supporting surface of the supporting claw for supporting the paper is located directly above the first conveyor belt; when the supporting claw reaches a position close to the second conveyor belt, the supporting surface of the supporting claw for supporting the paper is located beside the second conveyor belt; The first paper feeding mechanism is provided with a paper stopper located beside the first conveyor belt. When the supporting claw is located near the first conveyor belt and away from the first conveyor belt in the horizontal direction, the paper stopper blocks one side of the paper stack supported by the supporting claw, preventing the paper stack from moving horizontally along with the supporting claw, thereby causing the paper stack to fall onto the first conveyor belt. The second paper feeding mechanism is provided with a pushing paper board close to the second conveyor belt. When the supporting claw is located near the second conveyor belt, the pushing paper board is located on the side of the paper stack supported by the supporting claw facing away from the second conveyor belt, and the pushing paper board pushes the paper stack onto the second conveyor belt.

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