Folding mechanism of carbon-free paper perforating machine

Abstract

The folding mechanism of the carbon-free paper perforating machine comprises a machine frame, fixing plates are symmetrically arranged on the front side face and the rear side face in the machine frame, mounting frames are arranged on the upper side faces of the fixing plates, and the left ends and the right ends of the opposite side faces of the two mounting frames are each provided with a rotating shaft in a rotating mode. Three groups of paper rolling assemblies for pushing the carbon-free paper to move are linearly arranged on the rotating shaft, and each paper rolling assembly comprises a left mounting block and a right mounting block which are symmetrically arranged on the rotating shaft, a connecting block arranged on the outer side face of the mounting block and a steel arc arranged on the connecting block; one ends of the two rotating shafts penetrate through the mounting frame and are connected with second motors located on the mounting frame, and the rotating shafts are provided with paper pressing assemblies located between the two adjacent paper rolling assemblies. The rack is provided with a folding assembly used for folding paper. The rack is provided with a conveying assembly used for conveying paper. The carbon-free paper folding and conveying device has the advantage of automatically folding and conveying carbon-free paper.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbonless paper punching machines and relates to a folding mechanism of a carbonless paper punching machine. Background Art

[0002] Carbonless copy paper is a type of invisible copy paper with the functions of direct copying and direct color development. It is mainly used for multi - part forms, bills, continuous financial bills, general business financial bills, etc. When manufacturing carbonless copy paper, it is necessary to punch holes in the edges of the carbonless paper for subsequent binding.

[0003] The Chinese utility model patent with the authorization announcement number CN215395624U discloses a punching device for carbonless copy paper processing, including a bottom plate. A support plate is welded and installed on the top of the bottom plate. The number of support plates is two groups and they are arranged in parallel and corresponding. Fixed rods are welded and installed on the corresponding side walls of the support plates. Auxiliary rollers are welded and installed on the front and rear side walls of the support plates. The auxiliary rollers are located directly above the fixed rods. This technical solution enables the device to effectively adapt to carbonless copy paper of different widths by setting an adjustable base plate and a punching drill bit that moves along with the base plate. However, in this technical solution, the carbonless paper cannot be folded and conveyed after punching, which may cause inconvenience in subsequent processes. Summary of the Utility Model

[0004] In view of the above problems, the utility model proposes a folding mechanism of a carbonless paper punching machine, which well solves the problems in the prior art.

[0005] To achieve the above object, the technical solution adopted by the utility model is as follows: A folding mechanism of a carbonless paper punching machine includes a frame. Fixed plates are symmetrically arranged on the front and rear side faces inside the frame. An installation frame is arranged on the upper side face of the fixed plate. A rotating shaft is rotated at both the left and right ends of the opposite side faces of the two installation frames. Three groups of paper - rolling components are linearly arranged on the rotating shaft. The paper - rolling component includes two symmetrically arranged mounting blocks on the rotating shaft on the left and right, a connecting block arranged on the outer side face of the mounting block, and a steel arc arranged at the end of the connecting block far from the mounting block. The two mounting blocks can cooperate to form an installation cylinder. Two limiting grooves are symmetrically opened on the circumferential side face of the rotating shaft. A limiting protrusion matched with the limiting groove is arranged on the inner side face of the mounting block. The two steel arcs can cooperate to form a steel ring. Threaded sleeves are threadedly connected to both ends of the installation cylinder. One end of the two rotating shafts passes through the installation frame and is connected to a second motor located on the installation frame. The rotation directions of the two second motors are opposite, so the rotation directions of the rotating shafts are opposite;

[0006] A paper - pressing component is arranged on the rotating shaft between adjacent two groups of paper - rolling components;

[0007] The frame is provided with a folding assembly for folding paper;

[0008] The frame is provided with a conveying assembly for conveying paper.

[0009] Further, both ends of the opposite sides of the two mounting brackets are provided with connecting brackets. The paper pressing assembly includes a worm and worm gear reducer arranged on the connecting bracket and a paper pressing shaft arranged on the output shaft below the worm and worm gear reducer. The rotating shaft passes through the worm and worm gear reducer and drives the output shaft of the worm and worm gear reducer to rotate. The outer side of the paper pressing shaft is provided with threads.

[0010] Further, mounting plates are symmetrically arranged on the front and rear sides of the frame. The folding assembly includes fixed disks symmetrically arranged on the opposite sides of the two mounting plates, rotating plates rotatably connected to the opposite sides of the fixed disks, mounting disks arranged at one ends of the opposite sides of the two rotating plates away from the fixed disks, two first limiting rollers symmetrically arranged on the opposite sides of the two fixed disks from left to right, two second limiting rollers symmetrically arranged on the opposite sides of the two mounting disks from left to right, a guide paper board, and a first motor arranged on the side of the mounting plate away from the fixed disk. The output shaft of the first motor passes through the mounting plate and is provided with a transmission wheel, and a transmission belt for driving the rotating plate to rotate is arranged on the transmission wheel.

[0011] Further, the conveying assembly includes a plurality of transmission rollers and a conveyor belt arranged on the front and rear side surfaces inside the frame. The transmission rollers and the conveyor belt are both located below the fixed plate, and the heights of the plurality of transmission rollers increase sequentially from left to right.

[0012] Further, a paper guiding roller is arranged inside the frame above the fixed disk, and a third motor with an output shaft connected to the paper guiding roller is arranged on the outer side surface of the frame.

[0013] Further, a transmission shaft is rotatably connected inside the frame above the paper guiding roller. Two paper pressing wheels are symmetrically arranged on the front and rear of the transmission shaft, and a fourth motor with an output shaft connected to the transmission shaft is arranged on the outer side surface of the frame.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] The present utility model realizes the conveying of the folded carbonless paper through the rotating shaft, the threaded sleeve, the mounting block, the connecting block and the steel arc, preventing the carbonless paper from warping and affecting the conveying of the paper pressing assembly. The paper pressing assembly and the conveying assembly realize the downward pressing and conveying of the folded carbonless paper, preventing the carbonless paper from accumulating inside the frame and further affecting folding. The folding assembly realizes the repeated folding of the carbonless paper, improving the folding efficiency of the carbonless paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present utility model;

[0017] Figure 2 is the front view of the present utility model; Figure 1 of the present utility model;

[0018] Figure 3 is the top view of the present utility model; Figure 1 of the present utility model;

[0019] Figure 4 is the partial enlarged view of part A of the present utility model; Figure 1 of the present utility model;

[0020] Figure 5 is the schematic connection structure diagram of the mounting plate, rotating plate and fixed disk of the present utility model. Figure 1 of the present utility model.

[0021] In the figure, 1 is the frame; 2 is the fixed plate; 3 is the mounting plate; 4 is the paper guiding roller; 5 is the paper pressing wheel; 6 is the first limiting roller; 7 is the transmission wheel; 8 is the transmission belt; 9 is the rotating plate; 10 is the mounting disk; 11 is the second limiting roller; 12 is the paper guiding board; 13 is the rotating shaft; 14 is the worm and worm gear reducer; 15 is the threaded sleeve; 16 is the connecting block; 17 is the steel arc; 18 is the mounting block; 19 is the transmission roller; 20 is the conveyor belt; 21 is the paper pressing shaft; 22 is the first motor; 23 is the second motor; 24 is the transmission shaft; 25 is the fixed disk; 26 is the mounting frame; 27 is the connecting frame; 29 is the third motor; 30 is the fourth motor; 131 is the limiting groove; 181 is the limiting protrusion. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Such as Figures 1-5As shown in the figure, a folding mechanism of a carbonless paper punching machine includes a frame 1. The front and rear sides inside the frame 1 are symmetrically installed with fixing plates 2 by bolts. The upper side of the fixing plate 2 is installed with an installation frame 26 by bolts. At the left and right ends of the opposite sides of the two installation frames 26, a rotating shaft 13 is rotatably connected through bearings. There are three groups of paper rolling components linearly arranged on the rotating shaft 13. The paper rolling component includes two installation blocks 18 symmetrically arranged on the rotating shaft 13 on the left and right, a connecting block 16 welded to the outer side of the installation block 18, and a steel arc 17 welded to the end of the connecting block 16 away from the installation block 18. The two installation blocks 18 can cooperate to form an installation cylinder. Two limiting grooves 131 are symmetrically formed on the circumferential side of the rotating shaft 13. A limiting protrusion 181 that cooperates with the limiting groove 131 is integrally formed on the inner side of the installation block 18. The two steel arcs 17 can cooperate to form a steel ring. Threaded sleeves 15 are threadedly connected to both ends of the installation cylinder. One end of the two rotating shafts 13 passes through the installation frame 26 and is connected to a second motor 23 located on the installation frame 26. The rotation directions of the two second motors 23 are opposite, so the rotation directions of the two rotating shafts 13 are opposite;

[0024] A paper pressing component is arranged on the rotating shaft 13 between adjacent groups of paper rolling components;

[0025] The frame 1 is provided with a folding component for folding paper;

[0026] The frame 1 is provided with a conveying component for conveying paper.

[0027] During installation, the staff inserts the limiting protrusions 181 of the two installation blocks 18 into the limiting grooves 131, so that the inner side of the installation block 18 fits with the outer side of the rotating shaft 13. Then, the threaded sleeves 15 are threadedly connected to the front and rear ends of the two installation blocks 18 to fixedly connect the two installation blocks 18 together, and a tight fit between the installation block 18 and the rotating shaft 13 is achieved, preventing the installation block 18 from moving when rotating with the rotating shaft 13 and ensuring the reliability of the installation block 18 during use;

[0028] During use, the carbonless paper is folded and laid inside the frame 1 under the action of the folding component. At the same time, the rotating shaft 13 rotates under the action of the second motor 23. The rotating shaft 13 drives the steel ring composed of the two steel arcs 17 to move the folded carbonless paper to both sides of the frame 1, so that the folded carbonless paper contacts the paper pressing component. Under the action of the paper pressing component, the folded carbonless paper moves downward to the upper side of the conveying component. Under the action of the conveying component, the folded carbonless paper is transported to the next process, preventing the folded carbonless paper from accumulating inside the frame 1 and ensuring the stability of the folding mechanism during use.

[0029] In this embodiment, connecting brackets 27 are welded to both ends of the opposite sides of the two mounting brackets 26. The paper pressing assembly includes a worm and worm gear reducer 14 with one end sleeved on the connecting bracket 27 and a paper pressing shaft 21 arranged on the output shaft below the worm and worm gear reducer 14. The rotating shaft 13 passes through the worm and worm gear reducer 14 and drives the output shaft of the worm and worm gear reducer 14 to rotate. The worm and worm gear reducer 14 is a prior art and will not be elaborated here. During use, the rotating shaft 13 drives the worm and worm gear inside the worm and worm gear reducer 14 to rotate, causing the output shaft below the worm and worm gear reducer 14 to rotate, thereby driving the paper pressing shaft 21 to rotate. When the paper pressing shaft 21 rotates, the folded carbonless paper moves between the threads on the outer side of the paper pressing shaft 21 under the push of the steel arc 17, and is pressed downward by the rotation of the threads, causing the carbonless paper to move downward and be pressed and stacked together, preventing the compressed carbonless paper from expanding and rising upward, which affects the use.

[0030] In this embodiment, mounting plates 3 are symmetrically welded to the front and rear sides of the frame 1. The folding assembly includes two fixed disks 25 symmetrically arranged on the opposite sides of the mounting plates 3 by bolts, a rotating plate 9 rotatably connected to the opposite sides of the fixed disks 25 through bearings, a mounting disk 10 mounted on the opposite sides of the two rotating plates 9 away from one end of the fixed disks 25 by bolts, two first limiting rollers 6 symmetrically welded to the opposite sides of the two fixed disks 25 left and right, two second limiting rollers 11 symmetrically welded to the opposite sides of the two mounting disks 10 left and right, a guide paper board 12, and a first motor 22 mounted on the side of the mounting plate 3 away from the fixed disk 25 by bolts. The output shaft of the first motor 22 passes through the mounting plate 3 and is provided with a transmission wheel 7. A transmission belt 8 is sleeved on the transmission wheel 7, and the other end of the transmission belt 8 is sleeved on the end of the rotating plate 9 away from the fixed disk 25, so that the transmission wheel 7 can drive the rotating plate 9 to rotate through the transmission belt 8. During use, the first motor 22 drives the rotating plate 9 to rotate repeatedly through the transmission wheel 7 and the transmission belt 8. The carbonless paper extends from above the frame 1 between the first limiting roller 6 and the second limiting roller 11, and extends between the two guide paper boards 12, and then moves below the guide paper board 12 into the frame 1. The rotating plate 9 rotates repeatedly, thereby driving the second limiting roller 11 and the guide paper board 12 to rotate repeatedly. When the second limiting roller 11 and the guide paper board 12 rotate repeatedly, the carbonless paper flowing out from below the guide paper board 12 is folded repeatedly, thus completing the folding process of the carbonless paper. Then, under the action of the paper pressing assembly, the folded carbonless paper is pressed downward and conveyed into the conveying assembly and leaves the frame, thereby realizing the rapid folding of the carbonless paper and improving the working efficiency of the carbonless paper during folding.

[0031] In this embodiment, the conveying assembly includes a plurality of driving rollers 19 and a conveyor belt 20 disposed inside the frame 1. Transmission plates are rotatably connected to the front and rear sides of the driving rollers 19 and the conveyor belt 20. One end of the transmission plate away from the driving rollers 19 and the conveyor belt 20 is fixed to the front and rear sides of the frame 1 by bolts. Both the driving rollers 19 and the conveyor belt 20 are located below the fixing plate 2. The heights of the plurality of driving rollers 19 increase sequentially from left to right. During use, the folded carbonless paper moves downward onto the driving rollers 19 and slides onto the conveyor belt 20 under the action of gravity, and then is conveyed upward to the next process under the action of the conveyor belt 20, preventing the carbonless paper from accumulating inside the frame 1 and ensuring the continuous operation of the folding mechanism.

[0032] In this embodiment, a paper guiding roller 4 is disposed inside the frame 1 above the fixed disk 25. A third motor 29 with an output shaft connected to the paper guiding roller 4 is installed on the outer side of the frame 1 by bolts. During use, the third motor 29 drives the paper guiding roller 4 to rotate. The carbonless paper contacts the outer side of the paper guiding roller 4. Under the action of the paper guiding roller 4, the carbonless paper moves downward along the outer side of the paper guiding roller 4 and is conveyed into the paper folding assembly for folding, realizing the guiding and transportation of the carbonless paper and ensuring the working efficiency of the folding mechanism during operation.

[0033] In this embodiment, a transmission shaft 24 is rotatably connected inside the frame 1 through bearings above the paper guiding roller 4. Two paper pressing wheels 5 are symmetrically arranged on the front and rear sides of the transmission shaft 24. A fourth motor 30 with an output shaft connected to the transmission shaft 24 is installed on the outer side of the frame 1 by bolts. During use, the paper pressing wheels 5 contact the edges of the carbonless paper. At the same time, the fourth motor 30 drives the transmission shaft 24 to rotate, so that the paper pressing wheels 5 limit the edges of the carbonless paper, and at the same time prevent the carbonless paper from floating upward, ensuring that the carbonless paper always adheres to the paper guiding roller 4 and guaranteeing the reliability of the carbonless paper during transportation.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A folding mechanism of a carbonless paper punching machine, comprising a frame, characterized in that: The front and rear sides of the frame are symmetrically provided with fixing plates, and a mounting bracket is provided on the side of the fixing plate. A rotating shaft is rotatably arranged at the left and right ends of the opposite sides of the two mounting brackets, and three sets of paper rolling assemblies are linearly arranged on the rotating shaft. The paper rolling assembly includes two left and right mounting blocks symmetrically arranged on the rotating shaft, a connecting block arranged on the outer side of the mounting block, and a steel arc arranged at one end of the connecting block away from the mounting block. The two mounting blocks can cooperate to form a mounting cylinder, and two limiting grooves are symmetrically provided on the circumferential side of the rotating shaft, and a limiting protrusion matching the limiting groove is provided on the inner side of the mounting block. The two steel arcs can cooperate to form a steel ring, and threaded sleeves are threadedly connected to the front and rear ends of the mounting cylinder. One end of the two rotating shafts passes through the mounting bracket and is connected to a second motor located on the mounting bracket. The rotation directions of the two second motors are opposite, so the rotation directions of the rotating shafts are opposite. The rotating shaft is provided with a paper pressing assembly located between two adjacent groups of paper rolling assemblies; The frame is provided with a folding assembly for folding paper; The frame is provided with a conveying assembly for conveying paper.

2. The folding mechanism of a carbonless paper punching machine according to claim 1, characterized in that: Connecting frames are provided at both ends of the opposite sides of the two mounting frames, and the paper pressing assembly includes a worm gear reducer arranged on the connecting frame and a paper pressing shaft of the output shaft arranged below the worm gear reducer, the rotating shaft passes through the worm gear reducer and drives the output shaft of the worm gear reducer to rotate, and the outer side surface of the paper pressing shaft is provided with a thread.

3. The folding mechanism of a carbonless paper punching machine according to claim 1, characterized in that: The front and rear sides of the frame are symmetrically provided with mounting plates, and the folding assembly includes two fixed plates symmetrically provided on opposite sides of the mounting plates, a rotating plate rotatably connected to the opposite sides of the fixed plates, a mounting plate provided on opposite sides of the two rotating plates away from one end of the fixed plates, two first limiting rollers symmetrically provided on opposite sides of the two fixed plates, two second limiting rollers and paper guides symmetrically provided on opposite sides of the two mounting plates, and a first motor provided on the side of the mounting plate away from the fixed plate, the output shaft of the first motor passes through the mounting plate and is provided with a transmission wheel, and the transmission wheel is provided with a transmission belt that drives the rotating plate to rotate.

4. The folding mechanism of a carbonless paper punching machine according to claim 1, characterized in that: The conveying assembly includes a plurality of transmission rollers and a conveyor belt arranged on the front and rear sides of the frame, the transmission rollers and the conveyor belt are both located below the fixed plate, and the heights of the plurality of transmission rollers increase sequentially from left to right.

5. The folding mechanism of a carbonless paper punching machine according to claim 2, characterized in that: A paper guide roller is arranged above the fixed plate in the frame, and a third motor whose output shaft is connected with the paper guide roller is arranged on the outer side of the frame.

6. The folding mechanism of the carbonless paper punching machine according to claim 5, characterized in that: A transmission shaft located above the paper guide roller is rotatably connected in the frame, and two paper pressing wheels are symmetrically arranged front and back on the transmission shaft. A fourth motor with an output shaft connected to the transmission shaft is arranged on the outer side of the frame.

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