High-stability paper feeding and conveying mechanism of die-cutting machine

Abstract

The utility model discloses a high-stability paper feeding and conveying mechanism of a die-cutting machine, which is characterized by comprising an upper traction roller, the upper traction roller is rotatably arranged on a lifting seat, the lifting seat is connected with a lifting driving component, a lower traction roller is correspondingly arranged below the upper traction roller, the lower traction roller is connected with an output end of a first motor, and the output end of the first motor is connected with a second motor. The upper traction roller is connected with a first synchronous wheel, the lower traction roller is connected with a second synchronous wheel, a third synchronous wheel capable of rotating is arranged at the position, above the first synchronous wheel, of the rack, a fourth synchronous wheel is arranged on one side of the first synchronous wheel and rotationally arranged on a moving seat, and the moving seat is connected with a moving adjusting assembly. The device further comprises a double-sided tooth synchronous belt, outer side teeth of the double-sided tooth synchronous belt are meshed with the first synchronous wheel, and inner side teeth of the double-sided tooth synchronous belt are meshed with the second synchronous wheel, the third synchronous wheel and the fourth synchronous wheel. The paper conveying device is simple in structure, reasonable in design and capable of further improving the stability and accuracy of paper conveying.

Description

Technical Field

[0001] This utility model relates to a die-cutting machine, specifically to a highly stable paper feeding and conveying mechanism for a die-cutting machine. Background Technology

[0002] A die-cutting machine is a specialized piece of equipment used for die-cutting, creasing, hot stamping, or waste removal of printed paper. One type of die-cutting machine is used for die-cutting roll paper, which requires a paper feeding and conveying mechanism to pull the roll paper into the die-cutting unit. Traditional paper feeding and conveying mechanisms use an upper and lower traction roller structure, with the upper traction roller being driven and only the lower traction roller connected to the drive motor. During operation, the upper traction roller needs to press the paper firmly onto the lower traction roller, and the rotation of the lower traction roller is controlled. The friction force then drives the upper traction roller to rotate, thereby achieving the traction and conveying of the paper. This structure has limited traction force and may experience slippage of the upper traction roller, affecting the stability of paper traction and conveying, resulting in a poor user experience. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a highly stable paper feeding and conveying mechanism for a die-cutting machine to solve the above-mentioned problems.

[0004] Therefore, this utility model is implemented using the following solution:

[0005] A high-stability paper feeding and conveying mechanism for a die-cutting machine is characterized by: an upper traction roller rotatably mounted on a lifting seat, the lifting seat being connected to a lifting drive assembly; a lower traction roller positioned below the upper traction roller, the lower traction roller being connected to the output end of a first motor; the upper traction roller being connected to a first synchronous pulley; the lower traction roller being connected to a second synchronous pulley; a rotatable third synchronous pulley positioned above the first synchronous pulley on a frame; a fourth synchronous pulley positioned on one side of the first synchronous pulley; the fourth synchronous pulley rotatably mounted on a movable seat, the movable seat being connected to a movable adjustment assembly; and a double-sided toothed synchronous belt, the outer teeth of which mesh with the first synchronous pulley, and the inner teeth of which mesh with the second, third, and fourth synchronous pulleys.

[0006] The lifting drive assembly includes a first cylinder, the cylinder body of which is mounted on the frame, and the piston rod of the first cylinder is connected to the lifting seat.

[0007] The movable adjustment assembly includes an adjustment screw rotatably mounted on the frame, the adjustment screw being screwed to a movable seat, and the movable seat being slidably mounted in a guide groove on the frame.

[0008] A paper feeding platform is provided at the paper feeding end corresponding to the upper and lower traction rollers. A paper pressing strip is provided at the paper feeding end of the paper feeding platform. A color mark photoelectric eye is provided above the paper feeding platform. The paper pressing strip is connected to the piston rod of the second cylinder to drive the paper pressing strip to move up and down.

[0009] The color mark photocell is mounted on a mounting base, which is slidably mounted on a movable arm. The movable arm is slidably mounted on a movable frame, which is connected to a movable drive assembly.

[0010] The mobile drive assembly includes a second motor, the output end of which is connected to a first helical gear. The first helical gear meshes with a second helical gear. The second helical gear is connected to a drive screw. The drive screw is screwed to a mobile frame. A guide assembly is provided corresponding to the mobile frame.

[0011] The axes of the first, second, and third synchronous pulleys are arranged along the same vertical line.

[0012] The above-mentioned technical solution provides a high-stability paper feeding and conveying mechanism for a die-cutting machine. By setting up a synchronous belt and synchronous pulley structure, the motor enables the upper and lower traction rollers to rotate synchronously and actively, effectively improving the stability and reliability of paper traction and conveying. In addition, the third and fourth synchronous pulleys are set up to achieve the positioning and winding of the double-sided toothed synchronous belt, so that the double-sided toothed synchronous belt can remain taut and not loosen during the lifting and lowering of the upper traction roller. This ensures that the double-sided toothed synchronous belt can always smoothly drive the upper traction roller to rotate during normal use. Attached Figure Description

[0013] The present invention includes the following figures:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Another perspective;

[0016] Figure 3 for Figure 2 Another perspective. Detailed Implementation

[0017] As shown in the figure, the present invention discloses a high-stability paper feeding and conveying mechanism for a die-cutting machine, including an upper traction roller 4, which is rotatably mounted on a lifting seat 6. The lifting seat 6 is connected to a lifting drive assembly. A lower traction roller 1 is provided below the upper traction roller 4 and is connected to the output end of a first motor 17. The upper traction roller 4 is connected to a first synchronous wheel 5, and the lower traction roller 1 is connected to a second synchronous wheel 2. A rotatable third synchronous wheel 7 is provided above the first synchronous wheel 5 on the frame. A fourth synchronous wheel 9 is provided on one side of the first synchronous wheel 5 and is rotatably mounted on a movable seat 10. The movable seat 10 is connected to a movable adjustment assembly. The invention also includes a double-sided toothed synchronous belt 3, the outer teeth of which mesh with the first synchronous wheel 5, and the inner teeth of which mesh with the second, third, and fourth synchronous wheels.

[0018] Furthermore, the lifting drive assembly includes a first cylinder 8, the cylinder body of which is mounted on the frame, and the piston rod of the first cylinder 8 is connected to the lifting seat 6. With this structure, by controlling the movement of the first cylinder 8, the lifting seat 6 and the upper traction roller 4 can be lifted and lowered.

[0019] Furthermore, the movable adjustment assembly includes an adjusting screw rotatably mounted on the frame, the adjusting screw being screwed to the movable seat 10, and the movable seat 10 being slidably mounted in a guide groove on the frame. With this structure, by controlling the rotation of the adjusting screw, the movable seat 10 and the fourth synchronous pulley 9 can be moved, thereby adjusting the tension of the double-sided toothed synchronous belt 3.

[0020] Furthermore, a paper feeding platform 16 is provided at the paper feeding end corresponding to the upper and lower traction rollers. A paper pressing strip 13 is provided at the paper feeding end of the paper feeding platform 16, and a color mark photoelectric sensor 22 is provided above the paper feeding platform. The paper pressing strip 13 is connected to the piston rod of the second cylinder 12, which drives the paper pressing strip 13 to move up and down. By adopting the above technical solution, the paper pressing strip 13 can be set to press and position the paper when traction stops, ensuring that the paper will not wrinkle or shift; the color mark photoelectric sensor 22 can detect the color marks on the paper and feed back information to the controller to detect the accuracy of paper feeding.

[0021] Furthermore, the color mark photocell 22 is mounted on the mounting base 14, which is slidably mounted on the movable arm 15. The movable arm 15 is slidably mounted on the movable frame 11, which is connected to the movable drive assembly. Specifically, the movable drive assembly includes a second motor 18, the output end of which is connected to a first helical gear 19. The first helical gear 19 meshes with a second helical gear 20, which is connected to a drive screw 21. The drive screw 21 is screwed to the movable frame 11, and a guide assembly is provided corresponding to the movable frame 11. The guide assembly includes a slide block mounted on the movable frame 11, and a slide rail that cooperates with the slide block is provided on the frame. By controlling the second motor 18 to rotate through gear transmission, the drive screw 21 can be rotated, thus moving the movable frame 11. At the same time, the movable arm 15 can be moved and adjusted on the movable frame 11, and the mounting base 14 can be moved and adjusted on the movable arm 15, thereby adjusting the position of the color mark photocell 22 to adapt to the position of the color mark on different types of paper.

[0022] Furthermore, the axes of the first synchronous pulley 5, the second synchronous pulley 2, and the third synchronous pulley 7 are aligned vertically. This structure allows for a more rational arrangement of the synchronous pulleys, ensuring that the first synchronous pulley 5 can maintain tension on the double-sided toothed synchronous belt 3 during lifting and lowering.

[0023] The working principle of this utility model is as follows: The paper is first unwound and fed to the paper feeding platform, and at this time the lifting seat 6 is in an upward state, so that there is a certain gap between the upper and lower traction rollers. The paper is pulled through the upper and lower traction rollers. Then the lifting seat 6 is controlled to descend, so that the upper and lower traction rollers can press the paper. At this time, the first motor is controlled to start, and the upper and lower traction rollers are driven to rotate actively through the synchronous belt drive group, so as to ensure that the paper can be pulled and transported more stably and reliably. Moreover, due to the setting of the third and fourth synchronous pulleys, the double-sided toothed synchronous belt 3 can always remain taut as the upper traction roller 4 and the first synchronous pulley 5 move up and down with the lifting seat 6, ensuring that the synchronous belt drive assembly can always synchronously drive the upper and lower traction rollers to rotate during use.

Claims

1. A high-stability paper feeding and conveying mechanism for a die-cutting machine, characterized in that: The system includes an upper traction roller (4), which is rotatably mounted on a lifting seat (6). The lifting seat (6) is connected to a lifting drive assembly. A lower traction roller (1) is provided below the upper traction roller (4). The lower traction roller (1) is connected to the output end of a first motor (17). The upper traction roller (4) is connected to a first synchronous pulley (5). The lower traction roller (1) is connected to a second synchronous pulley (2). A rotatable third synchronous pulley (7) is provided above the first synchronous pulley (5). A fourth synchronous pulley (9) is provided on one side of the first synchronous pulley (5). The fourth synchronous pulley (9) is rotatably mounted on a movable seat (10). The movable seat (10) is connected to a movable adjustment assembly. The system also includes a double-toothed synchronous belt (3). The outer teeth of the double-toothed synchronous belt (3) mesh with the first synchronous pulley (5), and the inner teeth of the double-toothed synchronous belt (3) mesh with the second, third, and fourth synchronous pulleys.

2. The high-stability paper feeding mechanism for a die-cutting machine according to claim 1, characterized in that: The lifting drive assembly includes a first cylinder (8), the cylinder body of the first cylinder (8) is mounted on the frame, and the piston rod of the first cylinder (8) is connected to the lifting seat (6).

3. The high-stability paper feeding mechanism for a die-cutting machine according to claim 1, characterized in that: The movable adjustment assembly includes an adjustment screw rotatably mounted on the frame, the adjustment screw being screwed to a movable seat (10), and the movable seat (10) being slidably mounted in a guide groove on the frame.

4. The high-stability paper feeding mechanism for a die-cutting machine according to claim 1, characterized in that: A paper feeding platform (16) is provided at the paper feeding end of the upper and lower traction rollers. A paper pressing strip (13) is provided at the paper feeding end of the paper feeding platform (16). A color mark photoelectric eye (22) is provided above the paper feeding platform. The paper pressing strip (13) is connected to the piston rod of the second cylinder (12) to drive the paper pressing strip (13) to rise and fall.

5. The high-stability paper feeding and conveying mechanism for a die-cutting machine according to claim 4, characterized in that: The color mark photocell (22) is mounted on the mounting base (14), which is slidably mounted on the movable arm (15). The movable arm (15) is slidably mounted on the movable frame (11), which is connected to the movable drive assembly.

6. The high-stability paper feeding mechanism for a die-cutting machine according to claim 5, characterized in that: The moving drive assembly includes a second motor (18), the output end of which is connected to a first helical gear (19), the first helical gear (19) meshes with a second helical gear (20), the second helical gear (20) is connected to a drive screw (21), the drive screw (21) is screwed to a moving frame (11), and a guide assembly is provided on the moving frame (11).

7. The high-stability paper feeding and conveying mechanism for a die-cutting machine according to claim 1, characterized in that: The axes of the first synchronous pulley (5), the second synchronous pulley (2), and the third synchronous pulley (7) are arranged along the same vertical line.

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