A sheet cutting and punching machine

Abstract

The utility model discloses a kind of cutting and punching machine, and its technical scheme main points include base, the base is provided with the material feeding mechanism, floating buffer mechanism, punching mechanism, cutting mechanism and discharge platform sequentially arranged along material conveying direction, the floating buffer mechanism includes fixed roller group and floating roller group, the material sent by the material feeding mechanism is arranged on fixed roller group and floating roller group, the floating roller group can be relatively far away or close to fixed roller group, so that when material in conveying process, the floating roller group is close to or far away from fixed roller group along with the material of movement. The utility model can buffer the movement when paper material conveying processing, guarantee the stable conveying of paper material, improve processing precision.

Description

Technical Field

[0001] This utility model relates to the field of automated processing technology, and more specifically to a sheet cutting and punching machine. Background Technology

[0002] Sheet cutting and punching equipment is used in the paper product processing industry. It is mainly used for precise punching and cutting of paper to meet the industrial needs of binding, packaging and other processes.

[0003] Currently, existing sheet cutting and punching machines, when processing roll-shaped paper materials, experience brief pauses in conveying during the process, especially during punching, to allow for precise punching. After punching, the paper resumes conveying. Similarly, there are brief pauses during paper cutting to ensure accurate positioning. Furthermore, when the paper breaks during cutting, the cut section is conveyed out, while the remaining section inside the machine, no longer pulled by the previous section, experiences slight backflow. These brief stops and starts during conveying cause the paper to constantly shift within the machine. Over time, this affects the precision of paper processing and makes the paper prone to tearing and clogging. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a sheet cutting and punching machine that can buffer the movement of paper materials during the conveying and processing, ensure the stable conveying of paper materials, and improve the processing accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sheet cutting and punching machine, including a base, on which a feeding mechanism, a floating buffer mechanism, a punching mechanism, a sheet cutting mechanism, and a discharge platform are arranged sequentially along the material conveying direction. The floating buffer mechanism includes a fixed roller group and a floating roller group. The material fed by the feeding mechanism is wound around the fixed roller group and the floating roller group. The floating roller group can be relatively far away from or close to the fixed roller group, so that when the material is conveyed, the floating roller group moves closer to or away from the fixed roller group as the material moves.

[0006] The present invention is further configured such that: a slide rail and a floating cylinder are provided on the frame, a slide block is provided on the floating roller group and connected to the slide rail, and the piston rod of the floating buffer cylinder is fixedly connected to the floating roller group.

[0007] The present invention is further configured such that the fixed roller group and the floating roller group are arranged in parallel.

[0008] The present invention is further configured such that both the fixed roller group and the floating roller group are provided with a plurality of rotating rollers.

[0009] The present invention is further configured such that: the punching mechanism includes a bottom die and an upper die, the upper die is provided with a punching eccentric wheel driven by a servo motor, and a punch is connected below the punching eccentric wheel. The material is conveyed between the bottom die and the upper die through the floating buffer mechanism, and punching is performed by the action of the punch.

[0010] The present invention is further configured such that the punching mechanism moves on the base via a track slider mechanism.

[0011] The present invention is further configured such that: the cutting mechanism includes a feeding clamping roller and a cutter; the feeding clamping roller clamps the material being conveyed and conveys the material to the cutter; the cutter moves up and down reciprocally to cut the material.

[0012] The present invention is further configured such that: a cutter eccentric wheel driven by a servo motor is provided inside the base; one end of the cutter eccentric wheel is connected to a linkage mechanism; the other end of the linkage mechanism is connected to a cutter holder that moves up and down relative to the base; and the cutter is fixedly mounted on the cutter holder.

[0013] The present invention is further configured such that the feeding mechanism includes a feeding drum for storing materials and a feeding clamping roller for providing conveying power.

[0014] The present invention is further configured such that: a collection mechanism is provided below the punching mechanism corresponding to the base, the collection mechanism includes an air suction hopper and a collection box, and the collection mechanism is connected to an external air pump so that the waste material after punching enters the air suction hopper through negative pressure and falls into the collection box.

[0015] In summary, this utility model has the following beneficial effects:

[0016] Compared to existing technologies, this invention incorporates a floating buffer mechanism. The floating roller group within this mechanism can move relative to the fixed roller group. As the paper material moves, the floating roller group moves along with it, providing buffering while maintaining tension. This ensures smooth paper feeding during processing, guarantees processing accuracy, and prevents paper jams. Furthermore, this invention includes a feeding clamping roller in the cutting mechanism. This clamping roller grips the cut paper material, preventing paper retraction at the moment of cutting and ensuring stable paper feeding and processing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the machine.

[0018] Figure 2 This is a partially enlarged schematic diagram of the floating buffer mechanism.

[0019] Figure 3This is a partially enlarged schematic diagram of the punching mechanism.

[0020] Figure 4 This is a partially enlarged schematic diagram of the sheet cutting mechanism and the discharge platform.

[0021] Reference numerals in the attached drawings: 1. Base; 2. Feeding mechanism; 21. Feeding drum; 22. Feeding clamping roller; 3. Floating buffer mechanism; 31. Fixed roller group; 311. Rotating roller; 32. Floating roller group; 4. Punching mechanism; 41. Bottom die; 42. Upper die; 421. Punching eccentric wheel; 5. Sheet cutting mechanism; 51. Feeding clamping roller; 52. Cutter; 521. Cutter eccentric wheel; 522. Linkage mechanism; 523. Knife holder; 6. Discharge platform; 7. Slide rail; 8. Floating cylinder; 9. Collection mechanism; 91. Suction hopper; 92. Collection box; 10. Paper material; 11. Track slider mechanism. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] This embodiment discloses a sheet cutting and punching machine. In this embodiment, the processing of paper material is used for illustration, but this equipment can also be used for other flexible materials that require punching and cutting. For example, this embodiment... Figure 1-4 As shown, the machine includes a base 1, on which a feeding mechanism 2, a floating buffer mechanism 3, a punching mechanism 4, a sheet cutting mechanism 5, and a discharge platform 6 are arranged sequentially along the paper material conveying direction. The floating buffer mechanism 3 includes a fixed roller group 31 and a floating roller group 32. The paper material fed by the feeding mechanism 2 is wound around the fixed roller group 31 and the floating roller group 32. The floating roller group 32 can move relatively away from or closer to the fixed roller group 31, so that when the material is conveyed, the floating roller group 32 moves closer to or further away from the fixed roller group 31 as the paper material moves. With the above structure, when the paper material intermittently stops and starts during subsequent conveying and processing, causing the paper to move, the floating roller group 32 can move along with it, thereby absorbing and buffering the energy of this movement and preventing paper damage. At the same time, the floating roller group 32 can also maintain the tension of the paper, so that the paper is conveyed smoothly and the processing accuracy is guaranteed.

[0024] Furthermore, in order to achieve the movement of the floating roller group 32, refer to Figure 2A slide rail 7 and a floating cylinder 8 are installed on the frame 1. A slide block is installed on the floating roller assembly 32 and connected to the slide rail 7. The piston rod of the floating buffer cylinder 8 is fixedly connected to the floating roller assembly 32. Thus, the floating buffer cylinder 8 can be selected as a buffer cylinder with a multi-stage buffer structure and adjustable buffer force. When the floating roller assembly 32 moves, the floating buffer cylinder 8 provides buffer force to achieve stable conveying of paper materials. At the same time, it is also convenient to adjust different buffer forces according to different operating conveying speeds and material properties (paper thickness, etc.).

[0025] Furthermore, the fixed roller group 31 and the floating roller group 32 are arranged in parallel. The advantage of this parallel arrangement is that it ensures controllability during movement. In order to ensure the force on the paper, several rotating rollers 311 are provided on both the fixed roller group 31 and the floating roller group 32. Since the force on a single sheet of paper is limited, in order to avoid damage to the paper during the floating buffering process, multiple rotating rollers 311 are provided, so that the paper is repeatedly wound around the rotating rollers 311, thereby allowing multiple sheets of paper to share the buffering force during the movement and avoiding damage to the paper.

[0026] Furthermore, refer to Figure 3 The punching mechanism 4 includes a bottom die 41 and an upper die 42. The upper die 42 contains a punching eccentric wheel 421 driven by a servo motor. A punch is connected below the punching eccentric wheel 421. Material is conveyed between the bottom die 41 and the upper die 42 via the floating buffer mechanism 3, and punched by the action of the punch. With this structure, the bottom die 41 and the upper die 42 are designed with shapes corresponding to the punching of the paper material. After the punch strikes downwards, corresponding punches are formed in the paper material. Simultaneously, a waste discharge channel can be provided below the bottom die 41 to prevent waste from getting stuck inside the bottom die 41.

[0027] Furthermore, different paper materials have different punching position requirements, therefore, such as Figure 3 In this embodiment, the punching mechanism 4 moves on the base 1 via the track slider mechanism 11. Correspondingly, the track slider mechanism 11 is equipped with a locking mechanism (not shown in the figure) for locking the punching mechanism 4 after movement. Specifically, the locking mechanism can be simply locked with bolts. The bolts are removed when movement is required, and the mechanism is fixed with bolts after movement.

[0028] Furthermore, refer to Figure 4 The cutting mechanism 5 includes a feeding clamping roller 51 and a cutter 52. The feeding clamping roller 51 clamps the incoming material and feeds it to the cutter 52. The cutter 52 moves up and down reciprocally to cut the material. With this structure, the feeding clamping roller 51 first clamps the paper material, and then the cutter 52 cuts it. This ensures that when the paper breaks at the moment of cutting, subsequent sheets of paper are clamped by the feeding clamping roller 51, preventing the paper from falling back and allowing for stable paper feeding.

[0029] Furthermore, refer to Figure 1 and Figure 4 A cutter eccentric wheel 521, driven by a servo motor, is installed inside the base 1. One end of the cutter eccentric wheel 521 is connected to a linkage mechanism 522, and the other end of the linkage mechanism 522 is connected to a cutter holder 523 that moves vertically relative to the base 1. The cutter 52 is fixedly mounted on the cutter holder 523. The reciprocating vertical movement of the cutter is achieved through the movement of the cutter eccentric wheel 521 and the linkage mechanism 522. The mechanical transmission structure is stable, and the servo motor can be easily matched to the paper feed speed, making adjustment convenient.

[0030] Furthermore, refer to Figure 1 The feeding mechanism 2 includes a feeding drum 21 for storing paper material and a feeding clamping roller 22 for providing conveying power. The feeding drum 21 can be tilted and adjusted by a cylinder to accommodate the changing feeding position as the drum diameter decreases with continuous paper processing. Furthermore, in this embodiment, the gap between the feeding clamping roller 22 and the upper rollers of the feeding clamping roller 51 is adjusted by a cylinder to accommodate different paper thicknesses and adjust the clamping force.

[0031] Furthermore, refer to Figure 1 To prevent the accumulation of waste material after punching, a collection mechanism 9 is installed below the punching mechanism 4 on the machine base 1. The collection mechanism 9 includes a suction hopper 91 and a collection box 92. The collection mechanism 9 is connected to an external vacuum pump so that the waste material after punching enters the suction hopper 91 through negative pressure and falls into the collection box 92. The suction hopper 91 is funnel-shaped with its wide opening facing upwards to facilitate the entry of waste material. The waste material is collected by negative pressure suction, preventing it from accumulating on the machine. The collection box 92 can be designed as a side-extraction structure, allowing for easy and quick cleaning of the waste material after processing is stopped.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sheet cutting and punching machine, comprising a base (1), wherein the base (1) is provided with a feeding mechanism (2), a floating buffer mechanism (3), a punching mechanism (4), a sheet cutting mechanism (5), and a discharge platform (6) arranged sequentially along the material conveying direction, characterized in that: The floating buffer mechanism (3) includes a fixed roller group (31) and a floating roller group (32). The material delivered by the feeding mechanism (2) is wound around the fixed roller group (31) and the floating roller group (32). The floating roller group (32) can be relatively far away from or close to the fixed roller group (31) so that when the material is being conveyed, the floating roller group (32) moves closer to or away from the fixed roller group (31) as the material moves.

2. The sheet cutting and punching machine according to claim 1, characterized in that: The machine base (1) is provided with a slide rail (7) and a floating cylinder (8). The floating roller group (32) is provided with a slide block connected to the slide rail (7), and the piston rod of the floating cylinder (8) is fixedly connected to the floating roller group (32).

3. A sheet cutting and punching machine according to claim 1, characterized in that: The fixed roller group (31) and the floating roller group (32) are arranged in parallel.

4. A sheet cutting and punching machine according to claim 1, characterized in that: Both the fixed roller group (31) and the floating roller group (32) are provided with a number of rotating rollers (311).

5. A sheet cutting and punching machine according to claim 1, characterized in that: The punching mechanism (4) includes a bottom die (41) and an upper die (42). The upper die (42) is provided with a punching eccentric wheel (421) driven by a servo motor. The punching eccentric wheel (421) is connected to a punch below. The material is conveyed between the bottom die (41) and the upper die (42) through the floating buffer mechanism (3) and punched by the action of the punch.

6. A sheet cutting and punching machine according to claim 5, characterized in that: The punching mechanism (4) moves on the base (1) via a track slider mechanism.

7. A sheet cutting and punching machine according to claim 1, characterized in that: The cutting mechanism (5) includes a feeding clamping roller (51) and a cutter (52). The feeding clamping roller (51) clamps the material being transported and conveys the material to the cutter (52). The cutter (52) moves up and down to cut the material.

8. A sheet cutting and punching machine according to claim 7, characterized in that: The base (1) is provided with a cutter eccentric wheel (521) driven by a servo motor. The cutter eccentric wheel (521) is connected to one end of a linkage mechanism (522), and the other end of the linkage mechanism (522) is connected to a cutter holder (523) that moves up and down relative to the base (1). The cutter (52) is fixedly mounted on the cutter holder (523).

9. A sheet cutting and punching machine according to claim 1, characterized in that: The feeding mechanism (2) includes a feeding drum (21) for storing materials and a feeding clamping roller (22) for providing conveying power.

10. A sheet cutting and punching machine according to claim 1, characterized in that: The base (1) is provided with a collection mechanism (9) below the punching mechanism (4). The collection mechanism (9) includes a suction hopper (91) and a collection box (92). The collection mechanism (9) is connected to an external air pump so that the waste material after punching enters the suction hopper (91) through negative pressure and falls into the collection box (92).

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