A semi-automatic die cutting machine automatic paper feeding device

Abstract

The utility model relates to die -cutting machine paper feeding technical field discloses a kind of automatic paper feeding device of semi-automatic die-cutting machine, including die-cutting machine main body, the rear surface of die-cutting machine main body is slidably connected with feeding assembly by sliding assembly, the feeding assembly includes double-end screw rod, guide plate, the thread of double-end screw rod both ends is opposite direction and respectively threadedly connected with movable block, two The movable block is fixedly connected above guide plate, the uppermost of two the opposite side surfaces of guide plate is fixedly connected with first fixed plate, the lowermost of two the opposite side surfaces of guide plate is fixedly connected with third fixed plate.In the utility model, through the cooperation of double-end screw rod, movable block, guide plate, first T-shaped slider and other structures, feeding assembly can be flexibly adjusted position according to paper width, realize the accurate positioning of paper, so that paper does not run off in feeding process, substantially improve the product pass rate of die-cutting processing, reduce resource waste.

Description

Technical Field

[0001] This utility model relates to the field of paper feeding technology for die-cutting machines, and in particular to an automatic paper feeding device for a semi-automatic die-cutting machine. Background Technology

[0002] In the printing and packaging industry, semi-automatic die-cutting machines are widely used for small- to medium-batch material die-cutting due to their low equipment cost and flexible operation. However, the paper feeding process of existing semi-automatic die-cutting machines largely relies on manual operation, which has significant limitations: when feeding paper sheet by sheet manually, the paper must be precisely aligned with the positioning reference of the die-cutting machine, which is labor-intensive and inefficient; manual feeding is easily affected by operator fatigue and experience differences, resulting in a high paper positioning deviation rate, leading to die-cutting pattern misalignment and increased waste, which has a significant impact on the processing quality of high-precision packaging products such as gift boxes and color boxes; in addition, when feeding paper manually, operators need to be in close contact with the moving parts of the die-cutting machine, posing a safety hazard of finger pinching.

[0003] Although some improved semi-automatic die-cutting machines are equipped with simple paper feeding devices to replace manual labor, some problems still exist. The device lacks a stable guiding structure, and the spacing between the guide plates still needs to be manually adjusted, which is not only time-consuming and laborious, but also lacks precision. At the same time, multiple sheets of paper may stick together or jam, and the machine is particularly unsuitable for materials that are tightly adhered, such as damp paper.

[0004] Therefore, designing an automatic paper feeding device that effectively solves the problems of paper misalignment, paper bridging, and paper jams is of great significance for improving the production efficiency and processing quality of semi-automatic die-cutting machines. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic paper feeding device for a semi-automatic die-cutting machine, which aims to improve the problems of "unstable guiding structure, easy paper deviation, paper jamming or sticking, and poor adaptability to materials with tight adhesion such as damp paper" in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic paper feeding device for a semi-automatic die-cutting machine, comprising a die-cutting machine body, wherein a feeding component is slidably connected to the rear surface of the die-cutting machine body via a sliding assembly, the feeding component comprising a double-headed screw and a guide plate, wherein the threads at both ends of the double-headed screw are in opposite directions and are respectively threaded to movable blocks, both movable blocks are fixedly connected above the guide plate, a first fixed plate is fixedly connected to the uppermost of the opposing side surfaces of the two guide plates, a third fixed plate is fixedly connected to the lowermost of the opposing side surfaces of the two guide plates, a second fixed plate is elastically connected above the two third fixed plates via a spring, and a second T-shaped slider is fixedly connected to the side of the two second fixed plates near the guide plate, the second T-shaped slider being slidably connected between the two guide plates via a second T-shaped groove opened on the opposing side surface of the guide plate.

[0007] As a further description of the above technical solution:

[0008] The sliding component includes a first T-slot, two first T-slots are symmetrically opened on the rear surface of the die-cutting machine body, and a first T-slider is horizontally slidably connected in each of the two first T-slots. The two first T-sliders are fixedly connected to the front side of the guide plate.

[0009] As a further description of the above technical solution:

[0010] The lower surfaces of both first fixing plates are provided with grooves, and rollers are rotatably connected in the grooves.

[0011] As a further description of the above technical solution:

[0012] Each of the two second fixed plates has a groove on one side of its opposite side, and a movable plate is horizontally slidably connected in the groove. A lever is fixedly connected to the rear side of the two movable plates near their ends.

[0013] As a further description of the above technical solution:

[0014] A receiving tray is fixedly connected below the front discharge port of the die-cutting machine body, and a heightening baffle is provided at the front end of the receiving tray.

[0015] As a further description of the above technical solution:

[0016] A drive assembly is fixedly connected to the rightmost end of the double-ended screw. The drive assembly includes a motor, and the output end of the motor is fixedly connected to the rightmost end of the double-ended screw.

[0017] As a further description of the above technical solution:

[0018] A mounting plate is fixedly connected to the lower right side of the rear surface of the die-cutting machine body via an upward-sloping support rod. A horizontal fixing rod is also fixedly connected to the lower part of the mounting plate. The other end of the fixing rod is fixedly connected to the upper right side of the rear surface of the die-cutting machine body. The motor is mounted on the upper surface of the mounting plate by bolts.

[0019] As a further description of the above technical solution:

[0020] The lower surfaces of both first fixing plates are slightly higher than the feed inlet of the die-cutting machine body.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, through the cooperation of structures such as double-headed screw, movable block, guide plate, and first T-shaped slider, the feeding component can flexibly adjust its position according to the width of the paper, realize the precise positioning of the paper, prevent the paper from deviating during the feeding process, greatly improve the product qualification rate of die-cutting processing, and reduce resource waste.

[0023] 2. In this utility model, through the cooperation of the first fixed plate, rollers, springs and other structures, the rollers themselves adhere to the paper surface with micro-elasticity, providing stable friction force during synchronous rotation with the paper, assisting in separating single sheets of paper from the stack, ensuring that the paper smoothly enters the die-cutting machine body for die-cutting under the synergistic effect of friction and adsorption, greatly improving the reliability and efficiency of automatic paper feeding in the die-cutting machine. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the automatic paper feeding device for a semi-automatic die-cutting machine in this utility model;

[0025] Figure 2 This is a three-dimensional front view of the feeding component of the automatic paper feeding device for the semi-automatic die-cutting machine in this utility model;

[0026] Figure 3 This is a rear view of the disassembled three-dimensional structure of the feeding component of the automatic paper feeding device of the semi-automatic die-cutting machine in this utility model.

[0027] Figure 4 This is a rear view of the disassembled three-dimensional structure of the automatic paper feeding device of the semi-automatic die-cutting machine in this utility model.

[0028] Legend:

[0029] 1. Die-cutting machine body; 2. Receiving tray; 3. Baffle; 4. Motor; 5. Mounting plate; 6. Support rod; 7. Fixing rod; 8. Double-ended screw; 9. Movable block; 10. Guide plate; 11. First fixing plate; 12. Second fixing plate; 13. Movable plate; 14. Spring; 15. Third fixing plate; 16. Second T-slot; 17. First T-slide block; 18. Second T-slide block; 19. Roller; 20. First T-slot; 21. Paddle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 , Figure 4 This utility model provides an embodiment of an automatic paper feeding device for a semi-automatic die-cutting machine, comprising a die-cutting machine body 1. A receiving tray 2 made of stainless steel plate is fixedly connected below the front discharge port of the die-cutting machine body 1 for receiving the finished paper after die-cutting. The front end of the receiving tray 2 is provided with a heightening baffle 3 welded perpendicularly to the receiving tray 2 to prevent the paper from slipping off the front end when stacked. The rear surface of the die-cutting machine body 1 is slidably connected to a feeding component responsible for paper conveying and positioning via a sliding assembly. The feeding component includes a double-headed screw 8 and two symmetrically distributed guide plates 10. The threads at both ends of the double-headed screw 8 are in opposite directions and are respectively threaded to movable blocks 9. The two movable blocks 9 are fixedly connected above the guide plates 10. By rotating the double-headed screw 8, the movable blocks 9 are driven to move in opposite directions to achieve the adjustment of the distance between the two guide plates 10 to adapt to paper of different widths.

[0032] Reference Figure 2 - Figure 4 Each of the two guide plates 10 has a horizontally fixed first fixing plate 11 fixedly connected to the top of its opposite side surface. The lower surface of each of the two first fixing plates 11 has a groove, and a roller 19 made of wear-resistant rubber is rotatably connected in the groove. The roller 19 is rotatably connected to the groove through a shaft pin. When the paper is attracted by the feed port of the die-cutting machine body 1, it is ensured to rotate synchronously with a certain friction. Through its own micro-elasticity, it adheres to the surface of the paper and provides stable friction without damaging the paper. This helps to separate individual sheets of paper from the stack. Especially for tightly adhered papers such as damp paper, it can reduce the risk of paper sticking. The lower surface of each of the two first fixing plates 11 is slightly higher than the feed port of the die-cutting machine body 1 to ensure that the paper enters the feed port smoothly without jamming.

[0033] Reference Figure 2 - Figure 4 Each of the two guide plates 10 has a horizontally fixed third fixing plate 15 fixedly connected to the bottom of its opposite side surface. The two third fixing plates 15 are elastically connected to a second fixing plate 12 via a spring 14. Paper is placed between the second fixing plate 12 and the first fixing plate 11. When there is no paper placed on the second fixing plate 12, the upper surface of the second fixing plate 12 can fit against the lower surface of the first fixing plate 11. Each of the two second fixing plates 12 has a sliding groove extending in the width direction on one of its opposite sides, and a retractable movable plate 13 is horizontally slidably connected in the groove. The rear side of the two movable plates 13 is fixedly connected to a lever 21 that is easy to manually adjust. By moving the lever 21, the extension width of the movable plate 13 can be adjusted to adapt to the middle section support of different paper widths and prevent the middle section from sagging and deforming during paper feeding.

[0034] Reference Figure 2 , Figure 3 Two second fixed plates 12 are fixedly connected to a second T-shaped slider 18 on one side near the guide plate 10. The second T-shaped slider 18 slides up and down between the two guide plates 10 through a second T-shaped groove 16 opened on the opposite side surface of the guide plate 10, ensuring that the second fixed plate 12 moves up and down smoothly, and works with the spring 14 to achieve elastic clamping of the paper.

[0035] Reference Figure 1 , Figure 4 The rightmost end of the double-headed screw 8 is fixedly connected to a drive assembly, which includes a motor 4. The output end of the motor 4 is fixedly connected to the rightmost end of the double-headed screw 8. A steel plate mounting plate 5 is fixedly connected to the lower right side of the rear surface of the die-cutting machine body 1 via an upward-sloping support rod 6. The motor 4 is bolted to the upper surface of the mounting plate 5. A horizontal fixing rod 7 is also fixedly connected to the lower part of the mounting plate 5 to enhance its stability. The other end of the fixing rod 7 is fixedly connected to the upper right side of the rear surface of the die-cutting machine body 1. The support rod 6 and the fixing rod 7 form a triangular support structure to ensure that the motor 4 does not shake during operation.

[0036] Reference Figure 2 , Figure 4 The sliding component includes a first T-slot 20. Two first T-slots 20 are symmetrically opened on the rear surface of the die-cutting machine body 1. A first T-slider 17 is horizontally slidably connected in each of the two first T-slots 20. The two first T-slider 17 are fixedly connected to the front side of the guide plate 10. The overall horizontal displacement of the feeding component is achieved by sliding the first T-slider 17 along the groove of the first T-slot 20 to adapt to paper of different widths.

[0037] Working principle: In use, the operator first adjusts the extension width of the movable plate 13 on the second fixed plate 12 by using the lever 21, so that the sides of the two movable plates 13 fit together to support the middle section of the paper. The stacked paper is placed between the first fixed plate 11 and the second fixed plate 12, with the bottom of the paper in contact with the second fixed plate 12. At this time, the spring 14 above the third fixed plate 15 is compressed by the weight of the paper, which drives the second fixed plate 12 to slide down along the second T-slot 16 through the second T-slide 18 until the elastic force of the spring 14 is balanced with the weight of the paper, thus achieving flexible clamping of the paper.

[0038] Then, based on the width of the paper to be processed, the guide spacing of the feeding assembly is adjusted by the drive assembly: the motor 4 on the mounting plate 5 is started, and the output end of the motor 4 drives the double-headed screw 8 to rotate. Since the threads at both ends of the double-headed screw 8 are opposite, the movable block 9 connected by its surface threads will drive the two guide plates 10 to move. The guide plates 10 slide horizontally in the first T-shaped groove 20 through the first T-shaped slider 17, and finally realize the opposite or reverse movement of the two guide plates 10, ensuring that the feeding assembly moves smoothly as a whole, adapting to the positioning requirements of different paper widths, until the spacing between the two guide plates 10 matches the paper width.

[0039] After the die-cutting machine body 1 is started, its feed inlet generates an adsorption force, which moves the top layer of paper towards the feed inlet. At this time, the roller 19 on the lower surface of the first fixed plate 11 contacts the upper surface of the paper. Since the roller 19 is made of wear-resistant rubber, it adheres to the paper surface through its own micro-elasticity and provides stable friction force during synchronous rotation with the paper, which helps to separate the single sheet of paper from the stack. At the same time, the design of the lower surface of the first fixed plate 11 being slightly higher than the feed inlet ensures that the paper enters the die-cutting machine body 1 smoothly for die-cutting under the combined action of friction and adsorption force. The die-cut paper is discharged from the discharge port and falls into the receiving tray 2 below. The raised baffle 3 at the front end of the receiving tray 2 prevents the paper from slipping from the front end during the stacking process.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic paper feeding device for a semi-automatic die-cutting machine, comprising a die-cutting machine body (1), characterized in that: The rear surface of the die-cutting machine body (1) is slidably connected to a feeding assembly via a sliding component. The feeding assembly includes a double-headed screw (8) and a guide plate (10). The threads at both ends of the double-headed screw (8) are in opposite directions and are respectively threaded to movable blocks (9). Both movable blocks (9) are fixedly connected above the guide plate (10). The uppermost of the opposing side surfaces of the two guide plates (10) are fixedly connected to a first fixed plate (11). The lowermost of the opposing side surfaces of the two guide plates (10) are fixedly connected to a third fixed plate (15). The upper part of the two third fixed plates (15) is elastically connected to a second fixed plate (12) via a spring (14). The side of the two second fixed plates (12) close to the guide plate (10) is fixedly connected to a second T-shaped slider (18). The second T-shaped slider (18) is slidably connected between the two guide plates (10) via a second T-shaped groove (16) opened on the opposing side surface of the guide plate (10).

2. The automatic paper feeding device for a semi-automatic die-cutting machine according to claim 1, characterized in that: The sliding assembly includes a first T-slot (20), and two first T-slots (20) are symmetrically opened on the rear surface of the die-cutting machine body (1). A first T-slider (17) is horizontally slidably connected in each of the two first T-slots (20), and the two first T-sliders (17) are fixedly connected to the front side of the guide plate (10).

3. The automatic paper feeding device for a semi-automatic die-cutting machine according to claim 1, characterized in that: The lower surfaces of the two first fixing plates (11) are provided with grooves and rollers (19) are rotatably connected in the grooves.

4. The automatic paper feeding device for a semi-automatic die-cutting machine according to claim 1, characterized in that: Each of the two second fixed plates (12) has a groove on one side of its opposite side, and a movable plate (13) is horizontally slidably connected in the groove. A lever (21) is fixedly connected to the rear side of the two movable plates (13) near the end.

5. The automatic paper feeding device for a semi-automatic die-cutting machine according to claim 1, characterized in that: A receiving tray (2) is fixedly connected below the front discharge port of the die-cutting machine body (1), and a heightening baffle (3) is provided at the front end of the receiving tray (2).

6. The automatic paper feeding device for a semi-automatic die-cutting machine according to claim 1, characterized in that: The rightmost end of the double-headed screw (8) is fixedly connected to a drive assembly, which includes a motor (4), and the output end of the motor (4) is fixedly connected to the rightmost end of the double-headed screw (8).

7. The automatic paper feeding device for a semi-automatic die-cutting machine according to claim 6, characterized in that: A mounting plate (5) is fixedly connected to the lower right side of the rear surface of the die-cutting machine body (1) by an upwardly inclined support rod (6). A horizontal fixing rod (7) is also fixedly connected to the lower part of the mounting plate (5). The other end of the fixing rod (7) is fixedly connected to the upper right side of the rear surface of the die-cutting machine body (1). The motor (4) is mounted on the upper surface of the mounting plate (5) by bolts.

8. The automatic paper feeding device for a semi-automatic die-cutting machine according to claim 1, characterized in that: The lower surfaces of both first fixing plates (11) are slightly higher than the feed inlet of the die-cutting machine body (1).

Images