Balanced-pressure paper pressing device for paper cutting machine

Abstract

The utility model discloses a paper pressing device with balanced pressure for a paper cutting machine, which comprises a placing bottom plate and a support frame positioned on the upper surface of the placing bottom plate, a lifting frame is arranged below the support frame, a threaded rod is arranged in the lifting frame in a penetrating manner, and guide rods are symmetrically arranged on the front side and the rear side of the threaded rod. The threaded rod is provided with sliding blocks which are symmetrical left and right, the threaded rod and the guide rod penetrate through the two sliding blocks, the threaded rod is screwed with the two sliding blocks, connecting frames in the front-back direction are formed below the sliding blocks, a pressing roller is erected between the connecting frames, and connecting plates are welded to the front inner side wall and the rear inner side wall of the lifting frame; the lower end of the connecting plate is fixedly connected with a fixed pressing plate, the left end of the threaded rod extends and penetrates through the left side wall of the lifting frame, a forward and reverse motor is fixedly installed on the left side of the lifting frame, and an output shaft of the forward and reverse motor is fixedly connected with the left end of the threaded rod. And manual adjustment is not needed, operation is easy and convenient, and the pressing effect is good.

Description

Technical Field

[0001] The utility model relates to the field of paper pressing devices for paper cutters with pressure balance, in particular to a paper pressing device for a paper cutter with pressure balance. Background Art

[0002] A paper cutter is a machine used to process the paper cutting requirements in the later stage of printing. Usually, when cutting paper, a large number of papers are cut at one time. When cutting, it is necessary to cooperate with a paper pressing device to press the paper tightly to prevent the paper from being misaligned during cutting, resulting in poor cutting effect.

[0003] For example, a paper pressing device for a paper cutter disclosed in the utility model with the authorization publication number CN220638142U includes a main body of the pressing device. A pressing mechanism is fixedly connected to the top of the main body of the pressing device. An activity groove is opened at the top of the main body of the pressing device. A flattening mechanism is fixedly connected to the rear side of the main body of the pressing device. A partition board is fixedly connected to the bottom of the main body of the pressing device. The pressing mechanism includes a pressing component and a driving component. When in use, by pulling the handle to drive the clamping plate to move upward, the connecting rod drives the bottom plate to move upward. During the movement of the bottom plate, the spring is squeezed. The distance between the clamping plate and the top of the main body of the pressing device increases. When the handle is released, the spring resets, and the bottom plate drives the clamping plate to move downward to clamp the paper. During this process, it can be seen that when pulling the handle upward, the paper to be cut is not under the clamping plate. During this process, it is necessary to manually move the paper under the clamping plate, and the paper may be disrupted again during the movement, and it is necessary to readjust, and the overall operation process is relatively cumbersome and difficult. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a paper pressing device for a paper cutter with pressure balance. By designing that the telescopic cylinder extends to drive the lifting frame to move downward until the pressure roller on the connecting frame presses the paper downward. At the same time, it cooperates with the forward and reverse motor to rotate to drive the threaded rod to rotate. When the threaded rod rotates, it is screwed with the two sliding blocks, so that the two sliding blocks move away from each other from the middle, and the paper is flattened and stretched from the middle of the paper. Continue to control the forward and reverse motor to rotate until the two pressure rollers disengage from the paper, and then continue to adjust the telescopic cylinder to extend, so that the fixed pressing plate presses the paper downward to complete the pressing and fixing of the paper. During the whole process, the paper is first flattened and stretched, and then pressed and fixed, without manual adjustment, the operation is simple, and the pressing effect is good.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: a paper pressing device for a paper cutter with balanced pressure, comprising a base plate and a support frame on the upper surface of the base plate, a lifting frame is arranged below the support frame, a threaded rod is passed through the inside of the lifting frame, guide rods are symmetrically arranged on the front and rear sides of the threaded rod, and sliding blocks symmetrically arranged on the threaded rod, the threaded rod and the guide rod pass through two sliding blocks and the threaded rod is screwed with them, a front-to-back connecting frame is formed below the sliding block, a pressure roller is arranged between the connecting frames, connecting plates are welded on the front and rear inner walls of the lifting frame, a fixed pressure plate is fixedly connected to the lower end of the connecting plate, the left end of the threaded rod extends through the left side wall of the lifting frame, a forward and reverse motor is fixedly installed on the left side of the lifting frame, and the output shaft of the forward and reverse motor is fixedly connected to the left end of the threaded rod.

[0006] As a preferred technical solution of the utility model, four telescopic cylinders are symmetrically installed on the upper wall of the support frame, and the lower ends of the telescopic cylinders are fixedly connected to the upper surface of the lifting frame.

[0007] As a preferred technical solution of the utility model, the inner side surface of the sliding block is provided with a front-to-back symmetrical accommodation cavity, and when the two sliding blocks are close to each other, the connecting plate will be hidden in the accommodation cavity.

[0008] As a preferred technical solution of the utility model, a cutter passage slot is provided on the front side of the lifting frame.

[0009] As a preferred technical solution of the utility model, mounting holes are provided at diagonals of the placement base plate.

[0010] As a preferred technical solution of the utility model, a front-to-back middle marking groove is provided on the upper surface of the base plate.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] The telescopic cylinder is designed to extend to drive the lifting frame to move downward until the pressure roller on the connecting frame presses the paper downward, and at the same time, the forward and reverse motors rotate to drive the threaded rod to rotate. When the threaded rod rotates, it screws with the two sliding blocks, so that the two sliding blocks move away from each other from the middle, and the paper is flattened and stretched from the middle of the paper. The forward and reverse motors are continued to be controlled to rotate until the two pressure rollers are separated from the paper, and then the telescopic cylinder is continued to be adjusted to extend, so that the fixed pressure plate presses the paper downward to complete the compression and fixation of the paper. In the overall process, the paper is first flattened and stretched, and then compressed and fixed. No manual adjustment is required, the operation is simple, and the compression effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 Schematic diagram of the front view structure of the present utility model;

[0015] Figure 3 Schematic diagram of the internal structure of the lifting frame of the present utility model;

[0016] Figure 4 Schematic diagram of the structure of the distribution position of the sliding block of the present utility model;

[0017] Wherein: 1. Placing bottom plate; 2. Mounting hole; 3. Support frame; 4. Telescopic cylinder; 5. Lifting frame; 6. Threaded rod; 7. Guide rod; 8. Sliding block; 9. Reversible motor; 10. Connecting frame; 11. Pressing roller; 12. Connecting plate; 13. Fixed pressing plate; 14. Knife passing groove; 15. Accommodating cavity; 16. Middle marking groove. Detailed implementation manners

[0018] In order to make the technical means, creative features, achieved purposes and functions implemented by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without making creative efforts all fall within the protection scope of the present utility model.

[0019] Embodiment

[0020] Please refer to Figure 1 - Figure 4As shown, the utility model provides a paper pressing device for a paper cutter with balanced pressure, including a placing base plate 1, a supporting frame 3 on the upper surface of the placing base plate 1, a lifting frame 5 is arranged below the supporting frame 3, the supporting frame 3 is in an inverted U shape as a whole, and is supported on the upper surface of the placing base plate 1 by supporting legs, and four telescopic cylinders 4 are symmetrically installed on the upper top wall of the supporting frame 3, and the telescopic cylinder 4 provides power for pressing the paper, and the lower end of the telescopic cylinder 4 is fixedly connected to the upper surface of the lifting frame 5, a threaded rod 6 is passed through the inside of the lifting frame 5, and the threaded rod 6 is a bidirectional screw rod, and guide rods 7 are symmetrically arranged on the front and rear sides of the threaded rod 6, and left-right symmetrical sliding blocks 8 are arranged on the threaded rod 6, and the threaded rod 6 and the guide rod 7 pass through the two sliding blocks 8 and the threaded rod 6 is screwed therewith, and the arrangement of the guide rod 7 makes the sliding of the sliding block 8 more stable, and when the sliding block 8 stays in the initial position, the two sliding blocks 8 are close to each other, and a front-to-back connecting frame 10 is formed below the sliding block 8, and a pressure roller 11 is arranged between the connecting frames 10, and the pressure roller 11 is unpowered. A connecting plate 12 is welded on the rear inner wall, and a fixed pressure plate 13 is fixedly connected to the lower end of the connecting plate 12. The fixed pressure plate 13 is smaller than the gap between the connecting frames 10. The connecting frame 10 can move outside the fixed pressure plate 13 and the two will not affect each other. The left end of the threaded rod 6 extends through the left side wall of the lifting frame 5 without affecting the normal rotation of the threaded rod 6. A forward and reverse motor 9 is fixedly installed on the left side of the lifting frame 5. The rotation of the forward and reverse motor 9 provides driving force for the threaded rod 6. The output shaft of the forward and reverse motor 9 is fixedly connected to the left end of the threaded rod 6. A front-to-back symmetrical accommodating cavity 15 is provided on the inner side of the sliding block 8. After the two sliding blocks 8 are close to each other, the connecting plate 12 will be hidden in the accommodating cavity 15 without affecting the stroke of the sliding block 8. A cutter passing groove 14 is provided on the front side of the lifting frame 5, and a mounting hole 2 is provided at the diagonal of the placement base plate 1, which is convenient for installing the device as a whole in a suitable position on the paper cutter. The upper surface of the placement base plate 1 is provided with a front-to-back middle identification groove 16, which is convenient for providing a certain reference for the operator;

[0021] Before placing the paper, first place the sorted paper on the upper surface of the placing base plate 1, align the part to be cut off with the front side of the placing base plate 1, place the paper in a suitable position according to the middle identification groove 16, control the telescopic cylinder 4 to extend, and the extension of the telescopic cylinder 4 drives the lifting frame 5 to move downward until the pressure roller 11 between the connecting frames 10 presses the paper, then control the telescopic cylinder 4 to stop extending, and then control the forward and reverse motor 9 to rotate, and the rotation of the forward and reverse motor 9 drives the threaded rod 6 to rotate, and the threaded rod 6 rotates and engages with the two sliding blocks 8 when rotating, so that the sliding blocks 8 move away from each other along the guide rod 7, and the pressure roller 11 moves from the middle of the paper to both sides to flatten the paper, until the two pressure rollers 11 move to both sides until they are separated from the paper, and then continue to control the telescopic cylinder 4 to extend, so that the fixed pressure plate 13 moves downward to press and fix the paper;

[0022] Specific working principle:

[0023] When using the device, first use the mounting bolts to pass through the mounting holes 2 to fix the device at a suitable position on the paper cutter. Then place the sorted paper on the upper surface of the placing base plate 1, with the part to be cut aligned with the front side edge of the placing base plate 1. Place the paper at a suitable position according to the middle identification groove 16. Control the telescopic cylinder 4 to extend. The extension of the telescopic cylinder 4 drives the lifting frame 5 to move downward until the pressure roller 11 between the connecting frames 10 presses the paper tightly. At this time, control the telescopic cylinder 4 to stop extending. Then control the forward and reverse motor 9 to rotate. The rotation of the forward and reverse motor 9 drives the threaded rod 6 to rotate. When the threaded rod 6 rotates, it is screwed with the two sliding blocks 8, causing the sliding blocks 8 to move away from each other along the guide rod 7. The pressure roller 11 moves from the middle of the paper to both sides to flatten the paper until the two pressure rollers 11 move to both sides and disengage from the paper. Then continue to control the telescopic cylinder 4 to extend, causing the fixed pressing plate 13 to move downward to press and fix the paper. Then start the paper cutter, and the cutting knife cuts the paper downward through the slot 14.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paper pressing device for a paper cutter with balanced pressure, comprising a placing base plate (1) and a support frame (3) located on the upper surface of the placing base plate (1), characterized in that: A lifting frame (5) is arranged below the support frame (3), a threaded rod (6) is inserted inside the lifting frame (5), a guide rod (7) is symmetrically arranged on the front and rear sides of the threaded rod (6), a left-right symmetrical sliding block (8) is arranged on the threaded rod (6), the threaded rod (6) and the guide rod (7) pass through the two sliding blocks (8) and the threaded rod (6) is screwed therewith, a front-to-back connecting frame (10) is formed below the sliding block (8), a pressure roller (11) is arranged between the connecting frames (10), connecting plates (12) are welded on the front and rear inner side walls of the lifting frame (5), and a fixed pressure plate (13) is fixedly connected to the lower end of the connecting plate (12), the left end of the threaded rod (6) extends through the left side wall of the lifting frame (5), a forward and reverse motor (9) is fixedly installed on the left side of the lifting frame (5), and the output shaft of the forward and reverse motor (9) is fixedly connected to the left end of the threaded rod (6).

2. The paper pressing device for a paper cutter with balanced pressure according to claim 1, characterized in that: Four telescopic cylinders (4) are symmetrically mounted on the upper top wall of the support frame (3), and the lower ends of the telescopic cylinders (4) are fixedly connected to the upper surface of the lifting frame (5).

3. The paper pressing device for a paper cutter with balanced pressure according to claim 1, characterized in that: The inner side surface of the sliding block (8) is provided with a front-to-back symmetrical accommodation cavity (15). When the two sliding blocks (8) are brought close to each other, the connecting plate (12) will be hidden in the accommodation cavity (15).

4. The paper pressing device for a paper cutter with balanced pressure according to claim 1, characterized in that: The front side of the lifting frame (5) is provided with a cutter passage slot (14).

5. The paper pressing device for a paper cutter with balanced pressure according to claim 1, characterized in that: The placement base plate (1) is provided with mounting holes (2) at diagonal locations.

6. The paper pressing device for a paper cutter with balanced pressure according to claim 1, characterized in that: The upper surface of the placing bottom plate (1) is provided with a front-to-back middle marking groove (16).

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