Flattening device for folding machine

Abstract

The utility model relates to the technical field of folding machines, and discloses a flattening device for a folding machine, which comprises a rack, a paper conveying platform, a conveying mechanism and pinch rollers, a support shaft is fixedly connected between every two opposite pinch rollers in a penetrating manner, two ends of the support shaft are respectively and fixedly sleeved with a belt pulley, and one side of the rack is provided with a driving motor; according to the utility model, the plurality of groups of pinch rollers are arranged on the two sides in the rack, and the supporting shafts connected between the pinch rollers which are opposite in pairs can perform synchronous transmission through the belt pulleys connected with the end parts and the connecting belts sleeved outside; a connecting frame can be in up-down elastic transmission through an adjusting telescopic rod at the bottom of the inner wall of a rectangular groove and a reset spring in a cavity, so that the multiple sets of pressing wheels can conduct self-adaptive adjustment and multiple-time flattening on the folded paper with different thicknesses on the paper conveying platform, in the conveying process of the folded paper, after multiple-time flattening treatment, the pressing flatness is high, and the pressing efficiency is high. And the paper loosening phenomenon is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of folding machines, in particular to a flattening device used for folding machines. Background Art

[0002] As the number of times the paper is folded increases, the bulkiness of the folded paper increases. If the paper is folded three times using a folding machine, or folded in half more than three times, the bulkiness of the folded paper will gradually increase. Therefore, the folded paper needs to be flattened by a flattening device.

[0003] For example, the Chinese patent authorization announcement number is CN220011641U, "A flattening device for a folding machine, comprising a folding machine body, a paper feeding platform installed in the folding machine body, two sets of paper feeding belts installed on the paper feeding platform, two support sleeves movably installed on the paper feeding platform, openings are provided on opposite sides of the support sleeves, and support blocks are slidably installed in the openings of the support sleeves, a support shaft is rotatably installed between the two support blocks, and two clamping wheels are sleeved on the support shaft, and a tension spring is installed between the support block and the bottom wall of the support sleeve opening";

[0004] The tension spring provided in the above-mentioned reference document can make the pressure wheel and the paper feeding belt close to each other. With the cooperation of the pressure wheel and the paper feeding belt, the paper can be conveniently pressed and transported out. Due to the tension spring provided, the device can automatically adjust to different thicknesses of paper, which is more convenient.

[0005] However, when the above-mentioned folding machine flattening device is in use, the folded paper on the folding machine is flattened by a single set of pinching wheels. After the folded paper is conveyed under the pinching wheels, it can only be flattened once. The flattening efficiency of the folded paper is short and the flattening effect is poor. After flattening and conveying, the paper becomes seriously loose. Utility Model Content

[0006] The utility model aims to provide a flattening device for a folding machine, which can realize multiple flattening treatments when folded paper is conveyed, has high pressing flatness, and greatly reduces the looseness of paper.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flattening device for a folding machine, comprising a frame, a paper feeding platform, a conveying mechanism, and a pressure wheel. A support shaft is fixedly connected and penetrated between the pressure wheels that are opposite to each other, and pulleys are fixedly sleeved on both ends of the support shaft. A driving motor is installed on one side of the frame, and connecting frames are respectively provided on both sides of the frame. Both ends of the support shaft are respectively fixed and penetrated to the outer side surfaces of two groups of the connecting frames, and connecting belts are fixedly sleeved between two adjacent groups of the pulleys located on the outer sides of the connecting frames. Adjustable telescopic rods are also provided on both sides of the frame, and the movable ends of the adjustable telescopic rods are fixedly connected to the bottom surface of the connecting frame on the same side.

[0008] Preferably, the conveying mechanism includes a servo motor and a paper conveyor belt, and the pressure wheels are respectively located at the top of the paper conveyor belt.

[0009] Preferably, rectangular grooves are respectively opened on both sides of the exterior of the frame, and a fixing plate is fixedly installed on the outer side of the rectangular groove, and the connecting frame and the adjustable telescopic rod are both located in the inner wall of the rectangular groove on the same side.

[0010] Preferably, guide grooves are provided at equal intervals on the inner wall of the rectangular groove, and both ends of the support shaft are movably inserted into the corresponding guide grooves.

[0011] Preferably, the driving motor is fixedly mounted at the end of the connecting frame on the same side, and the output end of the driving motor is fixedly connected to the end of the pulley on the same straight line.

[0012] Preferably, a return spring is installed between the fixed end and the movable end of the adjustable telescopic rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model arranges multiple groups of pressure wheels on both sides of the frame, and the supporting shafts connected between the two opposing pressure wheels can be synchronously driven by pulleys connected at the ends and connecting belts sleeved on the outside, and the connecting frame can be elastically driven up and down by an adjusting telescopic rod at the bottom of the inner wall of the rectangular groove and a reset spring in the cavity, so that the multiple groups of pressure wheels can adaptively adjust and flatten the papers of different thicknesses folded on the paper feeding platform for multiple times. During the conveying process of the folded paper, after multiple flattening treatments, the pressing flatness is high, the looseness of the paper is greatly reduced, and the problem of the folded paper being able to be flattened only once after being conveyed to the bottom of the pressure wheel, the flattening efficiency of the folded paper is short, the flattening effect is poor, and the paper is seriously loose after being flattened and conveyed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the side section structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the side structure of the frame in the utility model;

[0018] Figure 4 It is a schematic diagram of the local structure of the adjustable telescopic rod in the utility model;

[0019] Figure 5 for Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0020] In the figure: 1. frame; 2. conveying mechanism; 3. pressure wheel; 4. driving motor; 5. rectangular groove; 6. connecting frame; 7. connecting belt; 8. adjusting telescopic rod; 11. paper feeding platform; 31. supporting shaft; 32. pulley; 51. guide groove; 52. fixing plate; 81. reset spring. DETAILED DESCRIPTION

[0021] 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. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figure 1-5 The utility model provides a technical solution: a flattening device for a folding machine, comprising a frame 1, a paper feeding platform 11, a conveying mechanism 2, and a pinch wheel 3, wherein a support shaft 31 is fixedly connected between the two opposite pinch wheels 3, and pulleys 32 are fixedly sleeved at both ends of the support shaft 31, and a driving motor 4 is installed on one side of the frame 1;

[0023] Connecting frames 6 are respectively arranged on both sides of the frame 1, and both ends of the support shaft 31 are respectively fixed to penetrate the outer side surfaces of the two groups of connecting frames 6, and connecting belts 7 are respectively fixedly sleeved between the two adjacent groups of pulleys 32 located on the outer sides of the connecting frames 6. Adjustable telescopic rods 8 are also arranged on both sides of the frame 1, and the movable ends of the adjustable telescopic rods 8 are fixedly connected to the bottom surface of the connecting frame 6 on the same side;

[0024] The folded paper is transported by the conveying mechanism 2 on both sides of the paper feeding platform 11 in the frame 1. After the folded paper is transported to the bottom of the pinch wheel 3, the pinch wheel 3 is pressed to compact the folds of the paper. The flattening of the folded paper by conveying is an existing technical solution and will not be described in detail here.

[0025] Through the multiple groups of pressure wheels 3 arranged on both sides of the frame 1, the support shafts 31 connected between the two opposing pressure wheels 3 can be synchronously driven through the pulleys 32 connected at the ends and the connecting belts 7 sleeved on the outside, and the connecting frame 6 can be elastically driven up and down through the adjusting telescopic rod 8 at the bottom of the inner wall of the rectangular groove 5 and the return spring 81 in the cavity, so that the multiple groups of pressure wheels 3 can adaptively adjust and flatten the folded papers of different thicknesses on the paper feeding platform 11 for multiple times. During the transportation process, the folded paper has a high degree of flatness after multiple flattening processes, which greatly reduces the looseness of the paper.

[0026] Among them, the conveying mechanism 2 includes a servo motor and a paper feed conveyor belt, and the pressure wheels 3 are respectively located at the top of the paper feed conveyor belt. The folded paper is conveyed by the conveying mechanism 2 on both sides of the paper feed platform 11 in the frame 1. After the folded paper is conveyed to the bottom of the pressure wheel 3, it is flattened by the pressure wheel 3.

[0027] Among them, rectangular grooves 5 are respectively opened on both sides of the outside of the frame 1, and a fixing plate 52 is fixedly installed on the outside of the rectangular groove 5. The connecting frame 6 and the adjustable telescopic rod 8 are both located in the inner wall of the rectangular groove 5 on the same side. Guide grooves 51 are opened on the inner wall of the rectangular groove 5 at equal intervals. Both ends of the support shaft 31 are movably penetrated into the corresponding guide grooves 51. The driving motor 4 is fixedly installed at the end of the connecting frame 6 on the same side, and the output end of the driving motor 4 is fixedly connected to the end of the pulley 32 on the same straight line. A reset spring 81 is installed between the fixed end and the movable end of the adjustable telescopic rod 8. The connecting frame 6 can be elastically transmitted under the guidance of the guide groove 51 through the adjustable telescopic rod 8 at the bottom of the inner wall of the rectangular groove 5 and the reset spring 81 in the cavity, so that multiple groups of clamping wheels 3 can adaptively adjust and flatten the folded paper of different thicknesses on the paper feeding platform 11 for multiple times. During the transportation process, the folded paper has a high pressing flatness after multiple flattening processes.

[0028] Working principle: When in use, the paper is first folded in the folder frame 1;

[0029] Then, the folded paper is transported by the transport mechanism 2 on both sides of the paper transport platform 11 in the frame 1;

[0030] Finally, the driving motor 4 drives the pulley 32 on the same straight line, so that the supporting shaft 31 connected between the two opposing pressure wheels 3 can be synchronously driven through the pulley 32 connected at the end and the connecting belt 7 sleeved on the outside, and the connecting frame 6 can be elastically driven up and down through the adjusting telescopic rod 8 at the bottom of the inner wall of the rectangular groove 5 and the return spring 81 in the cavity, so that multiple groups of pressure wheels 3 can adaptively adjust and flatten the folded papers of different thicknesses on the paper feeding platform 11 for multiple times. During the transportation process, the folded paper has a high degree of flatness after multiple flattening processes, which greatly reduces the looseness of the paper.

[0031] 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 and modifications may be made to the embodiments without departing from the principles of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flattening device for a folding machine, comprising a frame (1), a paper feeding platform (11), a conveying mechanism (2), and a pinch wheel (3), characterized in that: A support shaft (31) is fixedly connected and penetrated between the two opposing pressure wheels (3), and pulleys (32) are fixedly sleeved at both ends of the support shaft (31). A driving motor (4) is installed on one side of the frame (1), and connecting frames (6) are respectively arranged on both sides of the frame (1). The two ends of the support shaft (31) are respectively fixedly penetrated to the outer side surfaces of the two groups of connecting frames (6), and connecting belts (7) are respectively fixedly sleeved between the two adjacent groups of pulleys (32) located on the outer sides of the connecting frames (6). Adjustable telescopic rods (8) are also arranged on both sides of the frame (1), and the movable ends of the adjustable telescopic rods (8) are fixedly connected to the bottom surface of the connecting frame (6) on the same side.

2. A flattening device for a folding machine according to claim 1, characterized in that: The conveying mechanism (2) comprises a servo motor and a paper conveying belt, and the pressure wheels (3) are respectively located at the top of the paper conveying belt.

3. A flattening device for a folding machine according to claim 2, characterized in that: Rectangular grooves (5) are respectively provided on both sides of the exterior of the frame (1), a fixing plate (52) is fixedly installed on the outside of the rectangular groove (5), and the connecting frame (6) and the adjustable telescopic rod (8) are both located in the inner wall of the rectangular groove (5) on the same side.

4. A flattening device for a folding machine according to claim 3, characterized in that: Guide grooves (51) are provided at equal intervals on the inner wall of the rectangular groove (5), and both ends of the support shaft (31) are movably inserted into the corresponding guide grooves (51).

5. A flattening device for a folding machine according to claim 4, characterized in that: The drive motor (4) is fixedly mounted at the end of the connecting frame (6) on the same side, and the output end of the drive motor (4) is fixedly connected to the end of the pulley (32) on the same straight line.

6. A flattening device for a folding machine according to claim 5, characterized in that: A return spring (81) is installed between the fixed end and the movable end of the adjustable telescopic rod (8).

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