Cutting device of digital printing machine

Abstract

The utility model discloses a digital printing machine cutting device which comprises a base, a cutting mechanism is arranged on the upper portion of the base, pressing mechanisms are arranged on the front side and the rear side of the cutting mechanism, and a protection mechanism is arranged in the middle of each pressing mechanism. The cutting mechanism comprises a cross beam, a fixing frame, a cutter, an air cylinder and a vertical rod, the lower end of the vertical rod is fixedly connected to the front and rear sides of the base, the front and rear ends of the cross beam are fixedly connected to the upper end of the vertical rod, and the front and rear sides of the fixing frame are slidably connected to the periphery of the vertical rod. According to the cutting device of the digital printing machine, the pressing blocks are pressed on the left side and the right side of the position, needing to be cut, of paper, the paper is prevented from moving in the cutting process, when the fingers of a worker are clamped on the rubber pad, the ejector pin cannot make the movable wiring terminal make contact with the static wiring terminal, and the cutting efficiency is improved. And then the second spring enables the iron rod to stretch out of the cavity and be clamped in the clamping hole, the fixing frame is prevented from driving the cutting knife to move downwards, and therefore workers are protected.

Description

Technical Field

[0001] This utility model relates to the technical field of digital printing machine cutting equipment, and in particular to a digital printing machine cutting device. Background Technology

[0002] Digital printing presses, also known as universal flatbed printers or flatbed printers, have broken through the bottlenecks of digital printing technology, achieving true one-sheet printing, no need for plate making, and full-color image completion in one go. They are the replacement products for traditional printing presses. However, during the cutting process, the paper is prone to shifting, affecting the cutting effect. In addition, workers need to sort the cut paper, and the cutting device can easily injure workers. Utility Model Content

[0003] The main objective of this invention is to provide a cutting device for a digital printing machine, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A cutting device for a digital printing machine includes a base, a cutting mechanism on the upper part of the base, pressing mechanisms on the front and rear sides of the cutting mechanism, and a protective mechanism in the middle of the pressing mechanism.

[0006] The cutting mechanism includes a crossbeam, a fixed frame, a cutting blade, a cylinder, and a vertical pole. The lower end of the vertical pole is fixedly connected to the front and rear sides of the base. The front and rear ends of the crossbeam are fixedly connected to the upper end of the vertical pole. The front and rear sides of the fixed frame are slidably connected to the outer periphery of the vertical pole. The cylinder is installed in the middle of the crossbeam. The lower output end of the cylinder passes through the crossbeam and is fixedly connected to the middle of the fixed frame. The upper part of the cutting blade is installed in the lower part of the fixed frame.

[0007] Preferably, the pressing mechanism includes a connecting plate, a connecting rod, a pressing block, a first spring, a limiting block, and a rubber pad. One side of the connecting plate is fixedly connected to the left and right sides of the fixing frame. The outer periphery of the connecting rod is slidably connected to the middle part of the connecting plate. The lower end of the connecting rod is fixedly connected to the upper part of the pressing block. The first spring is sleeved on the outer periphery of the connecting rod. The first spring is disposed between the connecting plate and the pressing block. The lower part of the limiting block is fixedly connected to the upper end of the connecting rod.

[0008] Preferably, a rubber pad is provided at the lower part of the pressing block.

[0009] Preferably, the protective mechanism includes a cavity, an electromagnet, an iron rod, a retaining ring, a second spring, and a locking hole. The locking hole is located on one side of another pressing block. The cavity is located on both the front and rear sides of one of the pressing blocks. The electromagnet is installed inside the cavity on the side away from the locking hole. The middle part of the retaining ring is fixedly connected to the middle part of the iron rod. The outer circumference of the retaining ring is slidably connected to the inside of the cavity. The locking hole is located inside the cavity. The second spring is located on the side of the retaining ring closer to the electromagnet.

[0010] Preferably, one end of the iron rod is positioned inside the locking hole.

[0011] Preferably, the protective mechanism further includes a stationary terminal, a fixed cylinder, a ejector pin, a support ring, a spring, and a movable terminal. One side of the stationary terminal is installed in the middle of the pressing block, the fixed cylinder is installed in the middle of the pressing block, the outer periphery of the ejector pin is slidably connected to the middle of the fixed cylinder, the lower part of the movable terminal is fixedly connected to the upper end of the ejector pin, the middle part of the support ring is fixedly connected to the lower part of the ejector pin, the spring is sleeved on the outer periphery of the ejector pin, the spring is disposed between the fixed cylinder and the support ring, the movable terminal is electrically connected to an external power source, and the stationary terminal is electrically connected to an electromagnet.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Drive the cylinder to make the fixing frame move down smoothly under the guidance of the upright. When the rubber pad comes into contact with the paper, the fixing frame continues to move down under the drive of the cylinder and compresses the first spring. Through the elastic force of the first spring, the pressing block presses on the left and right sides of the paper to be cut, preventing the paper from shifting during cutting.

[0014] 2. When the worker's finger gets stuck in the rubber pad, the ejector pin cannot make the moving terminal contact the stationary terminal, which causes the spring to extend the iron rod out of the cavity and get stuck inside the locking hole, preventing the fixing frame from moving the cutting blade downward, thus protecting the worker. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a cutting device for a digital printing machine according to the present invention;

[0016] Figure 2 This is a schematic diagram of the cutting mechanism structure of a digital printing machine cutting device according to the present invention;

[0017] Figure 3 This is a schematic diagram of the pressing mechanism of a cutting device for a digital printing machine according to the present invention;

[0018] Figure 4 This is a schematic diagram of the protective mechanism structure of a cutting device for a digital printing machine according to the present invention;

[0019] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0020] In the diagram: 1. Base; 2. Cutting mechanism; 201. Crossbeam; 202. Fixing frame; 203. Cutting blade; 204. Cylinder; 205. Upright pole; 3. Pressing mechanism; 301. Connecting plate; 302. Connecting rod; 303. Pressing block; 304. Spring 1; 305. Limiting block; 306. Rubber pad; 4. Protective mechanism; 401. Cavity; 402. Electromagnet; 403. Iron rod; 404. Retaining ring; 405. Spring 2; 406. Locking hole; 407. Static terminal; 408. Fixing cylinder; 409. Ejector pin; 410. Support ring; 411. Spring 3; 412. Moving terminal. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figure 1-5 As shown, a cutting device for a digital printing machine includes a base 1, a cutting mechanism 2 is provided on the upper part of the base 1, pressing mechanisms 3 are provided on the front and rear sides of the cutting mechanism 2, and a protective mechanism 4 is provided in the middle of the pressing mechanism 3.

[0023] In this embodiment, the cutting mechanism 2 includes a crossbeam 201, a fixed frame 202, a cutting blade 203, a cylinder 204, and a vertical rod 205. The lower end of the vertical rod 205 is fixedly connected to the front and rear sides of the base 1. The front and rear ends of the crossbeam 201 are fixedly connected to the upper end of the vertical rod 205. The front and rear sides of the fixed frame 202 are slidably connected to the outer periphery of the vertical rod 205. The cylinder 204 is installed in the middle of the crossbeam 201. The lower output end of the cylinder 204 passes through the crossbeam 201 and is fixedly connected to the middle of the fixed frame 202. The upper part of the cutting blade 203 is installed in the lower part of the fixed frame 202. The pressing mechanism 3 includes a connecting plate 3. 01. Connecting rod 302, pressing block 303, spring 304, limiting block 305 and rubber pad 306. One side of the connecting plate 301 is fixedly connected to the left and right sides of the fixing frame 202. The outer periphery of the connecting rod 302 is slidably connected to the middle of the connecting plate 301. The lower end of the connecting rod 302 is fixedly connected to the upper part of the pressing block 303. Spring 304 is sleeved on the outer periphery of the connecting rod 302. Spring 304 is set between the connecting plate 301 and the pressing block 303. The lower part of the limiting block 305 is fixedly connected to the upper end of the connecting rod 302. A rubber pad 306 is provided at the lower part of the pressing block 303.

[0024] Specifically, the drive cylinder 204 causes the fixing frame 202 to move smoothly downward under the guidance of the upright 205. When the rubber pad 306 contacts the paper, the fixing frame 202 continues to move downward under the drive of the cylinder 204 and compresses the spring 304. Through the elastic force of the spring 304, the pressing block 303 presses on the left and right sides of the area to be cut on the paper, preventing the paper from shifting during cutting and causing cutting failure.

[0025] In this embodiment, the protective mechanism 4 includes a cavity 401, an electromagnet 402, an iron rod 403, a retaining ring 404, a second spring 405, and a locking hole 406. The locking hole 406 is located on one side of another pressing block 303. The cavity 401 is located on both the front and rear sides of one of the pressing blocks 303. The electromagnet 402 is installed inside the cavity 401 on the side away from the locking hole 406. The middle part of the retaining ring 404 is fixedly connected to the middle part of the iron rod 403, and the outer periphery of the retaining ring 404 is slidably connected to the inside of the cavity 401. The locking hole 406 is located inside the cavity 401. The second spring 405 is located on the side of the retaining ring 404 near the electromagnet 402. One end of the iron rod 403 is located inside the locking hole 406. The protective mechanism 4 also includes... The components include a stationary terminal block 407, a fixed cylinder 408, a ejector pin 409, a support ring 410, a spring 411, and a movable terminal block 412. The stationary terminal block 407 is installed on one side of the pressing block 303, the fixed cylinder 408 is installed on one side of the pressing block 303, the outer periphery of the ejector pin 409 is slidably connected to the middle of the fixed cylinder 408, the lower part of the movable terminal block 412 is fixedly connected to the upper end of the ejector pin 409, the middle part of the support ring 410 is fixedly connected to the lower part of the ejector pin 409, the spring 411 is sleeved on the outer periphery of the ejector pin 409, and the spring 411 is located between the fixed cylinder 408 and the support ring 410. The movable terminal block 412 is electrically connected to an external power source, and the stationary terminal block 407 is electrically connected to an electromagnet 402.

[0026] Specifically, when the pressing block 303 moves down, the ejector pin 409 will first touch the base 1, causing the moving terminal 412 to move up and contact the stationary terminal 407, energizing the electromagnet 402. This causes the electromagnet 402 to attract the iron rod 403, thereby causing the iron rod 403 to disengage from the locking hole 406 and retract into the cavity 401. This allows the fixing frame 202 to drive the cutting blade 203 to extend out of the lower part of the rubber pad 306. When the worker's finger is stuck in the rubber pad 306, the ejector pin 409 cannot make the moving terminal 412 contact the stationary terminal 407. Consequently, the spring 405 causes the iron rod 403 to extend out of the cavity 401 and get stuck in the locking hole 406, preventing the fixing frame 202 from driving the cutting blade 203 down, thus protecting the worker.

[0027] Working principle:

[0028] The drive cylinder 204 causes the fixing frame 202 to move smoothly downward under the guidance of the upright 205. After the rubber pad 306 contacts the paper, the fixing frame 202 continues to move downward under the drive of the cylinder 204, compressing the spring 304. Through the elastic force of the spring 304, the pressing block 303 presses on the left and right sides of the area to be cut on the paper, preventing the paper from shifting during cutting. When the pressing block 303 moves downward, the ejector pin 409 will first touch the base 1, causing the moving terminal 412 to move upward and contact the stationary terminal 407, which is the electromagnet 4. When energized, the electromagnet 402 attracts the iron rod 403, causing the iron rod 403 to disengage from the locking hole 406 and retract into the cavity 401. This allows the fixing frame 202 to drive the cutting blade 203 to extend from the lower part of the rubber pad 306. When the worker's finger is stuck in the rubber pad 306, the ejector pin 409 cannot make the moving terminal 412 contact the stationary terminal 407. Consequently, the spring 405 causes the iron rod 403 to extend out of the cavity 401 and get stuck inside the locking hole 406, preventing the fixing frame 202 from driving the cutting blade 203 to move downward, thus protecting the worker.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cutting device for a digital printing machine, comprising a base (1), characterized in that: The base (1) is provided with a cutting mechanism (2) on the upper part, and a pressing mechanism (3) is provided on the front and rear sides of the cutting mechanism (2), and a protective mechanism (4) is provided in the middle of the pressing mechanism (3); The cutting mechanism (2) includes a crossbeam (201), a fixed frame (202), a cutting blade (203), a cylinder (204), and a vertical rod (205). The lower end of the vertical rod (205) is fixedly connected to the front and rear sides of the base (1). The front and rear ends of the crossbeam (201) are fixedly connected to the upper end of the vertical rod (205). The front and rear sides of the fixed frame (202) are slidably connected to the outer periphery of the vertical rod (205). The cylinder (204) is installed in the middle of the crossbeam (201). The lower output end of the cylinder (204) passes through the crossbeam (201) and is fixedly connected to the middle of the fixed frame (202). The upper part of the cutting blade (203) is installed in the lower part of the fixed frame (202).

2. The cutting device for a digital printing machine according to claim 1, characterized in that: The pressing mechanism (3) includes a connecting plate (301), a connecting rod (302), a pressing block (303), a spring (304), a limiting block (305), and a rubber pad (306). The connecting plate (301) is fixedly connected to the left and right sides of the fixing frame (202) on one side. The outer periphery of the connecting rod (302) is slidably connected to the middle part of the connecting plate (301). The lower end of the connecting rod (302) is fixedly connected to the upper part of the pressing block (303). The spring (304) is sleeved on the outer periphery of the connecting rod (302). The spring (304) is disposed between the connecting plate (301) and the pressing block (303). The lower part of the limiting block (305) is fixedly connected to the upper end of the connecting rod (302).

3. The cutting device for a digital printing machine according to claim 2, characterized in that: A rubber pad (306) is provided at the lower part of the pressing block (303).

4. The cutting device for a digital printing machine according to claim 1, characterized in that: The protective mechanism (4) includes a cavity (401), an electromagnet (402), an iron rod (403), a retaining ring (404), a second spring (405), and a locking hole (406). The locking hole (406) is located on one side of another pressing block (303). The cavity (401) is located on both the front and rear sides of one of the pressing blocks (303). The electromagnet (402) is installed inside the cavity (401) on the side away from the locking hole (406). The middle part of the retaining ring (404) is fixedly connected to the middle part of the iron rod (403). The outer circumference of the retaining ring (404) is slidably connected to the cavity (401). The locking hole (406) is located inside the cavity (401). The second spring (405) is located on the side of the retaining ring (404) near the electromagnet (402).

5. A cutting device for a digital printing machine according to claim 4, characterized in that: One end of the iron rod (403) is set inside the card hole (406).

6. A cutting device for a digital printing machine according to claim 4, characterized in that: The protective mechanism (4) further includes a stationary terminal (407), a fixed cylinder (408), a pin (409), a support ring (410), a spring (411), and a movable terminal (412). The stationary terminal (407) is installed on one side of the pressing block (303), the fixed cylinder (408) is installed on one side of the pressing block (303), the outer periphery of the pin (409) is slidably connected to the middle of the fixed cylinder (408), the lower part of the movable terminal (412) is fixedly connected to the upper end of the pin (409), the middle part of the support ring (410) is fixedly connected to the lower part of the pin (409), the spring (411) is sleeved on the outer periphery of the pin (409), and the spring (411) is disposed between the fixed cylinder (408) and the support ring (410). The movable terminal (412) is electrically connected to an external power source, and the stationary terminal (407) is electrically connected to an electromagnet (402).

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