Paper limiting structure for creasing and cutting machine

Abstract

The utility model provides a paper limiting structure for a creasing and cutting machine, which belongs to the technical field of creasing and cutting machines and comprises a mounting plate and a limiting mechanism arranged at the lower end of the mounting plate. A bottom limiting supporting plate is vertically and slidably connected between the two dovetail sliding grooves, lead screws are rotationally connected to the middles between the upper wall faces and the lower wall faces of the dovetail sliding grooves correspondingly, and screw holes transversely and symmetrically formed in the left end and the right end of the bottom limiting supporting plate are in threaded connection with the adjacent lead screws on the same side correspondingly. An ejection assembly is further arranged at the upper end of the mounting plate. By means of the limiting mechanism, the problem that when the platen of the creasing and cutting machine overturns towards the cutter direction, paper deviates, and consequently cutting lines or indentations are staggered is solved, relevant workers can take materials conveniently and rapidly, and the manual operation efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flat creasing, creasing and cutting machines, and in particular relates to a paper limiting structure for flat creasing, creasing and cutting machines. Background Art

[0002] The flat creasing and cutting machine is a special equipment used for creasing and cutting various papers, cardboards, plastic sheets and leather products. It is suitable for use in printing, packaging and decoration, plastics and other industries.

[0003] When preventing paper from slipping, traditional flat-press creasing and cutting machines mainly rely on the support plate under the pressing plate to provide basic support and preliminary positioning for the paper. Although this method can meet the processing needs of paper to a certain extent, its limitations gradually become apparent in actual applications. First, such equipment only relies on a single support plate to limit the paper, and its effect is limited. When the pressing plate performs a flipping action in the direction of the cutter, due to the lack of effective lateral constraints and anti-deviation mechanisms, the paper is very likely to be subjected to uneven force and shift in position, which in turn leads to deviations in the tangent or creasing position. Secondly, when the pressing plate is reset after completing the cutting process, the paper tends to stick to its surface. At this time, the staff needs to spend extra time and energy to separate the paper, which not only interrupts the smoothness of continuous operations, but also significantly reduces the overall manual operation efficiency. Utility Model Content

[0004] In view of this, the utility model provides a paper limiting structure for a flat pressing, creasing and cutting machine, which can ensure the stability and accuracy of the paper during the processing through the limiting mechanism, and can make the paper close to the surface of the negative pressure suction plate, so as to avoid the problem of paper deviation and tangent or creasing misalignment caused by the pressure plate of the flat pressing, creasing and cutting machine being flipped toward the cutting direction, thereby facilitating relevant staff to quickly take out materials, and the whole process does not require manual operation, which greatly improves the efficiency of manual operation.

[0005] In order to solve the above technical problems, the utility model provides a paper limiting structure for a flat creasing and creasing cutting machine, including a mounting plate and a limiting mechanism arranged at the lower end of the mounting plate, the limiting mechanism including a dovetail slide groove laterally symmetrically arranged at the lower end of the front surface of the mounting plate, a bottom limiting support plate is vertically slidably connected between the two dovetail slide grooves, a screw rod is rotatably connected in the middle between the upper and lower wall surfaces of the dovetail slide groove, wire holes laterally symmetrically arranged at the left and right ends of the bottom limiting support plate are respectively threadedly connected to the screw rods adjacent to the same side, a negative pressure assembly is also provided in the middle of the mounting plate, and an ejection assembly is also provided at the upper end of the mounting plate.

[0006] The limiting mechanism also includes a sliding opening which is laterally symmetrically arranged at the upper ends of the left and right surfaces of the bottom limiting support plate, and the limiting side plates are laterally slidably connected in the sliding opening. The screw holes which are laterally symmetrically arranged at the left and right ends of the front inclined surface of the bottom limiting support plate are threadedly connected with locking bolts, and the rear ends of the locking bolts respectively contact the front surfaces of the adjacent limiting side plates.

[0007] The negative pressure component includes an assembly groove arranged on the front surface of the mounting plate, a negative pressure suction plate is arranged in the assembly groove, a negative pressure port arranged in the middle of the right surface of the negative pressure suction plate is provided with a negative pressure pipe, the right end of the negative pressure suction plate passes through the right surface of the mounting plate and extends to the outside; the openings evenly distributed on the front surface of the negative pressure suction plate are provided with partition nets.

[0008] The ejection assembly includes a mounting groove arranged at the upper end of the front surface of the mounting plate, a top plate is longitudinally slidably connected in the mounting groove, and springs uniformly distributed laterally are arranged at the upper and lower ends of the rear wall surface of the top plate, and the front ends of the springs are fixedly connected to the front wall surface of the mounting groove; the ejection assembly also includes a rotating rod rotatably connected to the middle part of the rear end between the left and right walls of the mounting groove, and cams symmetrically distributed laterally are arranged at the left and right ends of the outer arc surface of the rotating rod, and the cams are matched with the rear surface of the top plate, and a motor is arranged at the upper end of the right surface of the mounting plate, and the left end of the output shaft of the motor is fixedly connected to the right extension end of the rotating rod, and the motor is electrically connected to the external single-chip computer.

[0009] A rotating wheel is rotatably connected in a rotating groove arranged at the rear end of the cam, and the rotating wheel is matched with the rear surface of the top plate.

[0010] The beneficial effects of the above technical solution of the utility model are as follows:

[0011] First, the staff rotates the screw synchronously according to the size of the paper. The screw drives the bottom limit support plate and its auxiliary mechanism to move up and down along the dovetail slide to adjust the position of the bottom limit support plate, so as to adapt to the size of the paper and achieve the fine positioning of the paper. Then the relevant staff slides the limit side plate to the specified position to further refine the side limit of the paper, and limits the sliding limit side plate by tightening the locking bolt to ensure the stability and accuracy of the paper during the processing. Then, while placing the paper on the bottom limit support plate, it is further limited by the limit side plate. The relevant staff connects the external negative pressure machine with the negative pressure pipeline. When the paper is placed for processing, the external single-chip microcomputer controls the operation of the external negative pressure machine. The external negative pressure machine runs through the negative pressure pipeline to generate negative pressure suction on the negative pressure suction plate, so that the paper is close to the surface of the negative pressure suction plate, avoiding the problem of paper offset when the flat pressing and creasing tangent cutting machine pressure plate is flipped toward the cutting direction, causing tangent or creasing misalignment. After the paper processing is completed, the external single-chip microcomputer controls the external negative pressure machine to stop operating, and at the same time controls the operation of the motor. The motor output shaft rotates to drive the rotating rod and the cam to rotate synchronously. When the distal end of the cam contacts the top plate, the top plate overcomes the elastic force of the spring and moves forward, thereby pushing up the paper. At this time, the external single-chip microcomputer controls the motor to stop operating, so that the paper remains in the pushed-up state, and then the paper is taken out manually. After the paper is taken out, the external single-chip microcomputer controls the motor to continue operating. After the distal end of the cam is separated from the top plate, the top plate is immediately reset under the action of the spring rebound force, preparing for the next round of operations, making it convenient for relevant staff to quickly take materials, and the entire process does not require manual operation, which greatly improves the efficiency of manual operation. The barrier net can effectively prevent impurities such as paper scraps from entering the negative pressure system, keeping the negative pressure channel unobstructed, and avoiding blockage and damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of a paper limiting structure for a flat creasing and tangent cutting machine of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0014] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0015] Figure 4 It is a schematic diagram of the enlarged structure of point B of the utility model.

[0016] Explanation of the reference numerals: 100, mounting plate; 200, dovetail slide; 201, bottom limit support plate; 202, screw rod; 203, limit side plate; 204, locking bolt; 300, negative pressure suction plate; 301, negative pressure pipe; 400, mounting groove; 401, top plate; 402, spring; 403, rotating rod; 404, cam; 405, motor; 500, barrier net; 600, rotating wheel. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0018] like Figure 1-4 As shown:

[0019] The present embodiment provides a paper limiting structure for a flat creasing and creasing cutting machine, including a mounting plate 100 and a limiting mechanism arranged at the lower end of the mounting plate 100, the limiting mechanism including a dovetail slide 200 symmetrically arranged at the lower end of the front surface of the mounting plate 100, a bottom limiting support plate 201 is vertically slidably connected between the two dovetail slides 200, a screw rod 202 is rotatably connected in the middle between the upper and lower wall surfaces of the dovetail slide 200, and the wire holes symmetrically arranged at the left and right ends of the bottom limiting support plate 201 are respectively connected to the adjacent The screw rod 202 is threadedly connected, a negative pressure component is also provided in the middle of the mounting plate 100, and an ejection component is also provided at the upper end of the mounting plate 100; the limiting mechanism also includes a sliding mouth symmetrically arranged at the upper ends of the left and right surfaces of the bottom limiting support plate 201, and the limiting side plates 203 are horizontally slidably connected in the sliding mouth, and the locking bolts 204 are threadedly connected in the screw holes symmetrically arranged at the left and right ends of the front inclined surface of the bottom limiting support plate 201, and the rear end heads of the locking bolts 204 respectively contact the front surfaces of the adjacent limiting side plates 203.

[0020] like Figure 1-4 As shown, the negative pressure component includes an assembly groove arranged on the front surface of the mounting plate 100, a negative pressure suction plate 300 is arranged in the assembly groove, a negative pressure pipe 301 is arranged in the negative pressure port arranged in the middle of the right surface of the negative pressure suction plate 300, the right end of the negative pressure suction plate 300 passes through the right surface of the mounting plate 100 and extends to the outside; barrier nets 500 are arranged in the openings evenly distributed on the front surface of the negative pressure suction plate 300.

[0021] like Figure 1-4As shown, the ejection assembly includes a mounting groove 400 arranged at the upper end of the front surface of the mounting plate 100, and a top plate 401 is longitudinally slidably connected in the mounting groove 400, and springs 402 uniformly distributed laterally are provided at the upper and lower ends of the rear wall surface of the top plate 401, and the front ends of the springs 402 are fixedly connected to the front wall surface of the mounting groove 400; the ejection assembly also includes a rotating rod 403 rotatably connected to the middle part of the rear end between the left and right walls of the mounting groove 400, and cams 404 symmetrically distributed laterally are provided at the left and right ends of the outer arc surface of the rotating rod 403, and the cams 404 are matched with the rear surface of the top plate 401, and a motor 405 is provided at the upper end of the right surface of the mounting plate 100, and the left end of the output shaft of the motor 405 is fixedly connected to the right extension end of the rotating rod 403, and the motor 405 is electrically connected to the external single-chip computer.

[0022] The working principle of the paper limiting structure for a flat creasing and creasing cutting machine provided by the utility model is as follows: first, the staff synchronously rotates the screw rod 202 according to the size of the paper, and the screw rod 202 rotates to drive the bottom limiting support plate 201 and its auxiliary mechanism to move up and down along the dovetail slide 200, so as to adjust the position of the bottom limiting support plate 201, so as to adapt to the size of the paper and realize the fine positioning of the paper, and then the relevant staff slides the limiting side plate 203 to the specified position, so as to further refine the side limit of the paper, and lock it by tightening Bolt 204 is used to limit the sliding limit side plate 203 to ensure the stability and accuracy of the paper during processing. Then, the paper is placed on the bottom limit support plate 201 and further limited by the limit side plate 203. Before this, the relevant staff connects the external negative pressure machine with the negative pressure pipe 301. When the paper is placed for processing, the external single-chip microcomputer controls the operation of the external negative pressure machine. The external negative pressure machine generates negative pressure suction force through the negative pressure pipe 301 on the negative pressure suction plate 300, so that the paper is tightly attached to the surface of the negative pressure suction plate 300. The surface is prevented from being offset by the paper when the pressing plate of the flat creasing and slitting machine is turned over toward the cutting direction, thereby causing the problem of tangent or creasing misalignment. After the paper processing is completed, the external single-chip microcomputer controls the external negative pressure machine to stop operating, and at the same time controls the motor 405 to operate. The output shaft of the motor 405 rotates to drive the rotating rod 403 and the cam 404 to rotate synchronously. When the distal end of the cam 404 contacts the top plate 401, the top plate 401 overcomes the elastic force of the spring 402 and moves forward, thereby pushing up the paper. At this time, the external single-chip microcomputer controls the motor 405 to stop operating, so that the paper Keep the paper in the pushed-up state, and then take it out manually. After the paper is taken out, the external single-chip microcomputer controls the motor 405 to continue to operate. After the distal end of the cam 404 is separated from the top plate 401, the top plate 401 is immediately reset under the action of the spring 402 to prepare for the next round of operations, which is convenient for relevant staff to quickly take materials. The whole process does not require manual operation, which greatly improves the efficiency of manual operation. The barrier net 500 can effectively prevent impurities such as paper scraps from entering the negative pressure system, keep the negative pressure channel unobstructed, and avoid blockage and damage to the equipment.

[0023] like Figure 2-4 As shown, the rotating grooves arranged at the rear end of the cam 404 are all rotatably connected with the rotating wheels 600 , and the rotating wheels 600 are all arranged in cooperation with the rear surface of the top plate 401 , so that the rotating wheels 600 can reduce the friction coefficient with the top plate 401 .

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A paper limiting structure for a flat creasing and cutting machine, characterized in that: The invention comprises a mounting plate (100) and a limiting mechanism arranged at the lower end of the mounting plate (100), wherein the limiting mechanism comprises a dovetail slide groove (200) which is symmetrically arranged at the lower end of the front surface of the mounting plate (100), a bottom limiting support plate (201) is vertically slidably connected between the two dovetail slide grooves (200), a screw rod (202) is rotatably connected in the middle between the upper and lower wall surfaces of the dovetail slide groove (200), and the screw holes which are symmetrically arranged at the left and right ends of the bottom limiting support plate (201) are respectively threadedly connected to the screw rods (202) adjacent to the same side, a negative pressure component is also arranged in the middle of the mounting plate (100), and an ejection component is also arranged at the upper end of the mounting plate (100).

2. A paper limiting structure for a flat creasing and creasing cutting machine as claimed in claim 1, characterized in that: The limiting mechanism further comprises a sliding opening which is transversely symmetrically arranged at the upper ends of the left and right surfaces of the bottom limiting support plate (201), wherein the sliding opening is transversely slidably connected to the limiting side plates (203), and the screw holes which are transversely symmetrically arranged at the left and right ends of the front inclined surface of the bottom limiting support plate (201) are threadedly connected to locking bolts (204), and the rear ends of the locking bolts (204) respectively contact the front surfaces of the adjacent limiting side plates (203).

3. A paper limiting structure for a flat creasing and creasing cutting machine as claimed in claim 1, characterized in that: The negative pressure assembly comprises an assembly groove arranged on the front surface of the mounting plate (100), a negative pressure suction plate (300) is arranged in the assembly groove, a negative pressure port arranged in the middle of the right surface of the negative pressure suction plate (300) is provided with a negative pressure pipe (301), and the right end of the negative pressure suction plate (300) penetrates the right surface of the mounting plate (100) and extends to the outside.

4. A paper limiting structure for a flat creasing and creasing cutting machine as claimed in claim 1, characterized in that: The ejection assembly comprises a mounting groove (400) arranged at the upper end of the front surface of the mounting plate (100), a top plate (401) being longitudinally slidably connected in the mounting groove (400), springs (402) uniformly distributed transversely are provided at the upper and lower ends of the rear wall surface of the top plate (401), and the front ends of the springs (402) are fixedly connected to the front wall surface of the mounting groove (400).

5. A paper limiting structure for a flat creasing and creasing cutting machine as claimed in claim 4, characterized in that: The ejection assembly further comprises a rotating rod (403) rotatably connected to the middle of the rear end between the left and right walls of the mounting groove (400); cams (404) are provided at the left and right ends of the outer arc surface of the rotating rod (403) and are symmetrically distributed in the transverse direction; the cams (404) are both arranged in cooperation with the rear surface of the ejector plate (401); a motor (405) is provided at the upper end of the right surface of the mounting plate (100); the left end of the output shaft of the motor (405) is fixedly connected to the right side extension end of the rotating rod (403); and the motor (405) is electrically connected to an external single chip computer.

6. A paper limiting structure for a flat creasing and creasing cutting machine as claimed in claim 3, characterized in that: The evenly distributed openings on the front surface of the negative pressure suction plate (300) are all provided with barrier nets (500).

7. A paper limiting structure for a flat creasing and creasing cutting machine as claimed in claim 5, characterized in that: A rotating wheel (600) is rotatably connected in a rotating groove provided at the rear end of the cam (404), and the rotating wheel (600) is arranged in cooperation with the rear surface of the top plate (401).

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