Paper cutting equipment for high-precision printing

Abstract

The utility model discloses high-precision paper cutting equipment for printing, which relates to the technical field of paper cutting equipment and comprises a base, a processing table is fixedly erected on the top of the base, two sliding grooves are transversely formed in the top of the processing table, and a through movable groove is formed in the processing table and between the two sliding grooves. A through cutting groove is longitudinally formed in the machining table, the cutting groove is far away from the movable groove, scale marks are arranged on one side of the front face of the machining table, and the starting point of the scale marks is flush with the inner wall of the side, close to the movable groove, of the cutting groove; the adjustable limiting mechanism comprises a sliding base, a lead screw, a gear motor, a limiting frame, a pressing air cylinder and a pressing plate. When a whole stack of printing paper is cut and processed, the whole stack of printing paper can be well limited, pressed and fixed, and the cutting position is aligned at high precision, so that the cutting and processing precision of the printing paper is effectively improved, and the practicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of paper cutting equipment technology, and in particular to a high-precision paper cutting equipment for printing. Background Technology

[0002] A printing press is a machine for printing text and images. Modern printing presses generally consist of mechanisms such as plate mounting, inking, printing, and paper feeding. The invention and development of printing presses have played an important role in the dissemination of human civilization and culture. When printing presses are in use, they require a large amount of paper and there are also requirements for the size of the paper. At this time, a paper cutting device for printing is needed to cut the paper, as follows.

[0003] A search revealed a patent with authorization announcement number CN217801894U, which discloses a high-precision paper cutting device for book and periodical printing production. The device includes a frame, a feeding platform, a paper cutting mechanism, a paper feeding adjustment mechanism, and a discharge platform. The paper cutting mechanism is located between the feeding platform and the discharge platform. The paper feeding adjustment mechanism can clamp and feed the books and periodicals on the feeding platform to the paper cutting mechanism for cutting. The cut books and periodicals are then discharged through the discharge platform. This invention's paper feeding adjustment mechanism can transport the books and periodicals through clamping and traction. The paper cutting mechanism can then cut the books and periodicals below. The cut books and periodicals can be discharged through the discharge platform. The paper cutting mechanism includes an upper cutting component and a lifting pallet component. The upper cutting component can cut the books and periodicals horizontally by lifting and lowering. Simultaneously, during the cutting process, the lifting pallet component can be lifted, improving the cutting quality and precision of the books and periodicals through bidirectional force application.

[0004] However, the aforementioned high-precision paper cutting device still has the following areas for improvement. For example, when cutting a stack of printed paper, it lacks good limiting and fixing effects on the printed paper and does not have a good measurement function for the cutting position of the printed paper. Therefore, when cutting the printed paper, the cutting accuracy may be reduced due to the paper moving and sliding or the cutting position not being precise enough, thereby reducing the processing quality of the printed paper. Therefore, its structure needs to be improved and its practicality needs to be enhanced. Utility Model Content

[0005] This utility model discloses a high-precision paper cutting device for printing. It features an adjustable limiting mechanism, allowing for the following steps during paper cutting: First, a reduction motor is activated to rotate the lead screw, which, in conjunction with a slider and a groove, moves the slide block, thereby causing the limiting frame to move horizontally. During this movement, a scale line is used for measurement via an indicator plate. When the side of the indicator plate flush with the limiting frame aligns with the scale line indicating the required cutting size, the reduction motor is turned off. A stack of printing paper is then placed on the processing table, with one side of the paper abutting against the side of the limiting frame away from the slide block. Next, a clamping cylinder is activated, causing a clamping plate to move downwards and press the printing paper firmly in place. This process limits and presses the paper, ensuring high-precision alignment of the cutting position, allowing the paper cutting process to begin. This effectively improves the cutting accuracy and quality of the printing paper, thus solving the problems in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model discloses a high-precision paper cutting device for printing, including a base, on which a processing table is fixedly mounted. The top of the processing table has two horizontal sliding grooves, and the inside of the processing table has a through movable groove between the two sliding grooves. The inside of the processing table has a through cutting groove, which is away from the movable groove. A scale line is provided on one side of the front of the processing table, and the starting point of the scale line is flush with the inner wall of the cutting groove on the side closer to the movable groove.

[0008] An adjustable limiting mechanism includes a slide block, a lead screw, a geared motor, a limiting frame, a clamping cylinder, and a clamping plate. The bottom of the slide block is slidably connected to two sliding grooves via multiple sliding connectors. The lead screw is rotatably mounted on the bottom of the processing table via two bearing seats. The geared motor is fixedly mounted on the bottom of the processing table via mounting parts, and the output end of the geared motor is connected to the shaft end of the lead screw. A slider is screwed onto the outside of the lead screw, and the top of the slider passes through a movable groove and is fixedly connected to the bottom of the slide block. The positioning frame is L-shaped. One side of the positioning frame is fixedly connected to the side of the slide near the cutting groove, and the bottom of the positioning frame is attached to the top of the processing table. An indicator plate is fixedly connected to one side of the front of the positioning frame. One side of the indicator plate is flush with the side of the positioning frame away from the slide. The indicator plate is L-shaped, and the inner corner of the L-shape of the indicator plate is attached and engaged with the top edge of the front side of the processing table. The clamping cylinder is fixedly installed through the top of the positioning frame, and the top of the clamping plate is fixedly connected to the telescopic end of the clamping cylinder.

[0009] A bidirectional cutting mechanism is located on top of the base and the processing table.

[0010] Furthermore, the bottom surface of the limiting frame and the L-shaped inner corner surface of the indicator plate are both smooth surfaces.

[0011] Furthermore, a plurality of guide rods are fixedly connected to the top of the clamping plate, and the guide rods movably pass through the top of the limiting frame.

[0012] Furthermore, an anti-slip pad layer is attached and fixed to the bottom of the clamping plate, and the anti-slip pad layer is made of rubber material.

[0013] Furthermore, the bidirectional cutting mechanism includes a mounting frame, a first cylinder, a first cutter, a second cylinder, and a second cutter. The mounting frame is in the shape of an inverted U-shape and is fixedly installed on the top of the processing table. There are two of each of the first and second cylinders. The two first cylinders are fixedly installed on the top of the mounting frame in a through-type manner. The telescopic ends of the two first cylinders are connected to a first lifting plate. The top of the first cutter is fixedly connected to the first lifting plate. The two second cylinders are fixedly installed on the top of the base. The telescopic ends of the two second cylinders are fixedly connected to a second lifting plate. The bottom of the second cutter is fixedly connected to the top of the second lifting plate. The cutting lines of the first and second cutters are flush with the inner wall of the cutting groove on the side near the limiting frame.

[0014] Furthermore, both the front and rear sides of the first lifting plate are in contact with the inner wall of the mounting frame, and both the front and rear sides of the first lifting plate are smooth surfaces.

[0015] Furthermore, a material feeding groove with an inclined inner bottom surface is provided on one side of the top of the processing table, and the material feeding groove is close to the cutting groove.

[0016] The present invention has the following advantages over the prior art:

[0017] 1. This technical solution, by setting an adjustable limiting mechanism, allows the printing paper to be limited and pressed and fixed during the cutting process, as well as the cutting position to be aligned with high precision. This effectively improves the cutting accuracy of the printing paper and thus effectively improves the cutting quality of the printing paper, making it highly practical.

[0018] 2. This technical solution incorporates a bidirectional cutting mechanism, which allows for bidirectional sequential cutting of the thick stack of printing paper when the thickness of the entire stack is too great for the size of the cutter to be completed in a single operation. This eliminates the need for batch processing and effectively improves cutting efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0022] Figure 3 This is a schematic diagram of the first cutter mounting structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the slide block and the slider of this utility model;

[0024] Figure 5 This is a schematic diagram of the exploded structure of the second cutter of this utility model.

[0025] In the diagram: 1. Base; 2. Processing table; 3. Slide groove; 4. Movable groove; 5. Cutting groove; 6. Scale line; 7. Adjustable limit mechanism; 701. Slide; 702. Lead screw; 703. Gear motor; 704. Limit frame; 705. Clamping cylinder; 706. Clamping plate; 707. Slider; 708. Indicator plate; 709. Guide rod; 710. Anti-slip pad; 8. Bidirectional cutting mechanism; 801. Mounting frame; 802. First cylinder; 803. First cutter; 804. Second cylinder; 805. Second cutter; 806. First lifting plate; 807. Second lifting plate; 9. Discharge chute. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0029] Reference Figures 1-4 A high-precision paper cutting device for printing includes a base 1, a processing table 2 fixedly mounted on the top of the base 1, two horizontal grooves 3 on the top of the processing table 2, a through movable groove 4 between the two grooves 3 inside the processing table 2, and a through cutting groove 5 inside the processing table 2, the cutting groove 5 being away from the movable groove 4. A scale line 6 is provided on one side of the front of the processing table 2, the starting point of the scale line 6 being flush with the inner wall of the cutting groove 5 near the movable groove 4. An adjustable limiting mechanism 7 includes a slide 701, a lead screw 702, a geared motor 703, a limiting frame 704, a clamping cylinder 705, and a clamping plate 706. The bottom of the slide 701 is slidably connected to the two grooves 3 through multiple sliding connectors. The lead screw 702 is rotatably mounted on the bottom of the processing table 2 through two bearing seats. The geared motor 703 is fixedly mounted on the bottom of the processing table 2 through mounting parts. The output end of motor 703 is connected to the shaft end of lead screw 702. A slider 707 is screwed onto the outside of lead screw 702. The top of slider 707 passes through movable groove 4 and is fixedly connected to the bottom of slide block 701. Limiting frame 704 is L-shaped. One side of limiting frame 704 is fixedly connected to the side of slide block 701 near the cutting groove 5, and the bottom of limiting frame 704 is flush with the top of processing table 2. An indicator plate 708 is fixedly connected to one side of the front of limiting frame 704. One side of the indicator plate 708 is flush with the side of the limit frame 704 away from the slide 701. The indicator plate 708 is L-shaped, and the inner corner of the L-shape of the indicator plate 708 is fitted and engaged with the top edge of the front side of the processing table 2. The clamping cylinder 705 is fixedly installed through the top of the limit frame 704. The top of the clamping plate 706 is fixedly connected to the telescopic end of the clamping cylinder 705. The bidirectional cutting mechanism 8 is located on the top of the base 1 and the processing table 2.

[0030] The bottom surface of the limit frame 704 and the L-shaped inner corner surface of the indicator plate 708 are both smooth surfaces; multiple guide rods 709 are fixedly connected to the top of the pressure plate 706, and the guide rods 709 move through the top of the limit frame 704; an anti-slip pad 710 is attached and fixed to the bottom of the pressure plate 706, and the anti-slip pad 710 is made of rubber material.

[0031] In the specific implementation process, when cutting the printing paper, the geared motor 703 can be started first according to the required cutting size of the printing paper, driving the lead screw 702 to rotate. The rotation of the lead screw 702, in conjunction with the slider 707 and the slide groove 3, can drive the slide block 701 to move, thereby driving the limit frame 704 to translate. During the movement of the limit frame 704, the indicator plate 708 is used in conjunction with the scale line 6 for measurement. When the side of the indicator plate 708 flush with the limit frame 704 is aligned with the scale line 6 of the required cutting size, the measurement is completed. Once aligned and overlapped, the reduction motor 703 can be turned off. A stack of printing paper is placed on the processing table 2, with one side of it abutting against the side of the limit frame 704 away from the slide 701. Then, the clamping cylinder 705 is activated, driving the clamping plate 706 to move down and clamp the printing paper. This limits and clamps the printing paper, and ensures high-precision alignment of the cutting position. The cutting process of the printing paper can then begin, effectively improving the cutting accuracy of the printing paper and thus effectively improving the cutting quality of the printing paper.

[0032] The bottom surface of the limit frame 704 and the L-shaped inner corner surface of the indicator plate 708 are smooth surfaces in order to reduce the sliding friction between the limit frame 704 and the indicator plate 708 and the processing table 2, so as to facilitate the relative sliding movement between the limit frame 704 and the indicator plate 708 and the processing table 2.

[0033] Among them, multiple guide rods 709 can effectively improve the overall stability of the pressure plate 706;

[0034] The anti-slip pad 710 can increase the friction between the pressing plate 706 and the printing paper after they come into contact and are pressed together, thereby improving the pressing and fixing effect on the printing paper. Specific Implementation Example 2:

[0036] Reference Figure 3 and Figure 5 In a preferred embodiment, the bidirectional cutting mechanism 8 includes a mounting frame 801, a first cylinder 802, a first cutter 803, a second cylinder 804, and a second cutter 805. The mounting frame 801 is in the shape of an inverted U-shape and is fixedly mounted on the top of the processing table 2. There are two first cylinders 802 and two second cylinders 804. The two first cylinders 802 are fixedly mounted on the top of the mounting frame 801 in a through-type manner. The telescopic ends of the two first cylinders 802 are connected to a first lifting plate 806. The top of the first cutter 803 is fixedly connected to the first lifting plate 806. The two second cylinders 804 are fixedly mounted on the top of the base 1. The telescopic ends of the two second cylinders 804 are fixedly connected to a second lifting plate 807. The bottom of the second cutter 805 is fixedly connected to the top of the second lifting plate 807. The cutting lines of the first cutter 803 and the second cutter 805 are flush with the inner wall of the cutting groove 5 near the limit frame 704.

[0037] The front and rear sides of the first lifting plate 806 are both in contact with the inner wall of the mounting frame 801, and the front and rear sides of the first lifting plate 806 are both smooth surfaces; a material feeding groove 9 with an internal bottom surface is provided on one side of the top of the processing table 2, and the material feeding groove 9 is close to the cutting groove 5.

[0038] In the specific implementation process, when cutting printing paper, if the thickness of the entire stack of printing paper is relatively thick and the size of the cutter is limited and cannot complete the entire cutting process in one go, the first cylinder 802 can be used to drive the first lifting plate 806 and the first cutter 803 to move down. The first cutter 803 will cut the printing paper from top to bottom until the bottom of the first lifting plate 806 is in contact with the top of the printing paper. At this time, the second cylinder 804 can be activated to drive the second lifting plate 807 and the second cutter 805 to move up. The second cutter 805 will cut the printing paper from bottom to top until the second cutter 805 moves up and is in contact with the bottom of the first cutter 803. This completes the cutting process of the entire stack of thick printing paper without the need to process the entire stack of thick printing paper in batches.

[0039] The fact that the front and rear sides of the first lifting plate 806 are in contact with the inner wall of the mounting frame 801 is to improve the overall stability of the first lifting plate 806 and the first cutter 803. The fact that the front and rear sides of the first lifting plate 806 are smooth surfaces is to reduce the sliding friction between the first lifting plate 806 and the inner wall of the mounting frame 801, reduce wear, and facilitate the up and down movement of the first lifting plate 806.

[0040] The feeding trough 9 allows the cut waste material to slide naturally into the external collection box when the printing paper is cut, thus improving the ease of use of the device.

[0041] Working principle: When cutting printing paper, the geared motor 703 is started according to the required cutting size, driving the lead screw 702 to rotate. The rotation of the lead screw 702, in conjunction with the slider 707 and the slide groove 3, can drive the slide block 701 to move, thereby driving the limit frame 704 to move horizontally. During the movement of the limit frame 704, the indicator plate 708 is used in conjunction with the scale line 6 for measurement. When the side of the indicator plate 708 flush with the limit frame 704 is aligned with the scale line 6 of the required cutting size... Once the surfaces overlap, the geared motor 703 can be turned off. A stack of printing paper is placed on the processing table 2, with one side of it abutting against the side of the limiting frame 704 away from the slide 701. Then, the clamping cylinder 705 is activated, which drives the clamping plate 706 to move down and clamp the printing paper. This can limit and clamp the printing paper, as well as align the cutting position with high precision, and then the cutting process of the printing paper can begin. This effectively improves the cutting accuracy of the printing paper and thus effectively improves the cutting quality of the printing paper.

[0042] Furthermore, when cutting printing paper, if the entire stack of printing paper is thick and the size of the cutter is limited and cannot complete the entire cutting process in one go, the first cylinder 802 can be used to drive the first lifting plate 806 and the first cutter 803 to move downwards. The first cutter 803 will then cut the printing paper from top to bottom until the bottom of the first lifting plate 806 is in contact with the top of the printing paper. At this point, the second cylinder 804 can be activated to drive the second lifting plate 807 and the second cutter 805 to move upwards. The second cutter 805 will then cut the printing paper from bottom to top until it moves upwards and is in contact with the bottom of the first cutter 803. This completes the cutting process of the entire stack of thick printing paper without the need to process the entire stack of thick printing paper in batches.

[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cutting apparatus for high-precision printing, comprising a base (1), characterized in that: The top of the base (1) is fixedly provided with a processing table (2), the top of the processing table (2) is transversely provided with two sliding grooves (3), the inside of the processing table (2) is provided with a through movable slot (4) between the two sliding grooves (3), the inside of the processing table (2) is longitudinally provided with a through cutting slot (5), the cutting slot (5) is away from the movable slot (4), the front side of the processing table (2) is provided with a scale line (6), the starting point of the scale line (6) is flush with the inner wall of the side of the cutting slot (5) close to the movable slot (4). An adjustable limiting mechanism (7) is arranged, the adjustable limiting mechanism (7) comprises a sliding seat (701), a lead screw (702), a speed reducer motor (703), a limiting frame (704), a pressing cylinder (705) and a pressing plate (706), the bottom of the sliding seat (701) is slidably connected with the two sliding grooves (3) through a plurality of sliding connectors, the lead screw (702) is rotatably installed on the bottom of the processing table (2) through two bearing seats, the speed reducer motor (703) is fixedly installed on the bottom of the processing table (2) through an installation piece, the output end of the speed reducer motor (703) is connected with the shaft end of the lead screw (702), the outside of the lead screw (702) is screwed with a sliding block (707), the top of the sliding block (707) is fixedly connected with the bottom of the sliding seat (701) through the movable slot (4), the limiting frame (704) is L-shaped, one side of the limiting frame (704) is fixedly connected with the side of the sliding seat (701) close to the cutting slot (5), and the bottom of the limiting frame (704) is attached to the top of the processing table (2), the front side of the limiting frame (704) is fixedly connected with an indicating plate (708), one side of the indicating plate (708) is flush with the side of the limiting frame (704) away from the sliding seat (701), the indicating plate (708) is L-shaped, and the L-shaped inner corner of the indicating plate (708) is attached and clamped with the top edge of the front side of the processing table (2), the pressing cylinder (705) is fixedly installed on the top of the limiting frame (704) in a through manner, and the top of the pressing plate (706) is fixedly connected with the telescopic end of the pressing cylinder (705). A bidirectional cutting mechanism (8) is arranged on the top of the base (1) and the processing table (2).

2. The paper cutting apparatus for high-precision printing according to claim 1, characterized in that: The bottom surface of the limiting frame (704) and the L-shaped inner corner surface of the indicating plate (708) are smooth surfaces.

3. The paper cutting apparatus for high-precision printing according to claim 1, characterized in that: A plurality of guide rods (709) are fixedly connected to the top of the pressing plate (706) and movably penetrate the top of the limiting frame (704).

4. The paper cutting apparatus for high-precision printing according to claim 1, characterized in that: An anti-skid pad layer (710) is fixedly attached to the bottom of the pressing plate (706), and the anti-skid pad layer (710) is made of rubber material. An anti-skid pad layer (710) is fixedly attached to the bottom of the pressing plate (706), and the anti-skid pad layer (710) is made of rubber material.

5. The paper cutting apparatus for high-precision printing according to claim 2, characterized in that: Said bidirectional cutting mechanism (8) includes mounting frame (801), first air cylinder (802), first cutting knife (803), second air cylinder (804) and second cutting knife (805), the mounting frame (801) is inverted concave, the mounting frame (801) is fixedly installed on the top of the processing table (2), the first air cylinder (802) and the second air cylinder (804) are both provided with two, two first air cylinder (802) are fixedly installed on the top of mounting frame (801) in penetrating mode, the telescopic end of two first air cylinder (802) is connected with first lifting plate (806), the top of first cutting knife (803) is fixedly connected with first lifting plate (806), two second air cylinder (804) are fixedly installed on the top of base (1), the telescopic end of two second air cylinder (804) is fixedly connected with second lifting plate (807), the bottom of second cutting knife (805) is fixedly connected with the top of second lifting plate (807), and the cutting line of first cutting knife (803) and second cutting knife (805) is flush with the inner wall of the side of cutting groove (5) close to limiting frame (704).

6. A cutting apparatus for high-precision printing according to claim 5, characterized in that: The front and rear sides of first lifting plate (806) are attached to the inner wall of mounting frame (801), and the front and rear sides of first lifting plate (806) are smooth surfaces.

7. The paper cutting apparatus for high-precision printing according to claim 1, characterized in that: The top of processing table (2) is provided with discharging groove (9) with inclined inner bottom surface on one side, and the discharging groove (9) is close to cutting groove (5).

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