Flat plate high-speed air supply and exhaust device of paper cutter
By designing the valve body structure and solenoid valve control of the paper cutter, the rapid air supply and exhaust of the flat plate is achieved, solving the problem of paper pile slippage caused by untimely drop of steel balls in the prior art, and improving the cutting accuracy.
Patent Information
- Application Number
- CN202521161841.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2035-06-09
AI Technical Summary
The flat-panel gas supply structure of existing paper cutters is difficult to exhaust quickly, resulting in the inability to drop rapidly in steel balls, causing slippage and displacement of the paper stack during cutting, reducing the cutting accuracy.
A valve body structure including an air pump exhaust chamber, an air pump intake chamber, a flat air supply chamber, and a flat air exhaust chamber are designed. The rapid air supply and exhaust of the plate are achieved through the movement of the adjustment rod and the cover, and combined with solenoid valve control, ensure the stability and automation of gas flow.
The fast air supply and exhaust of the flat plate is achieved, ensuring smooth push and rapid drop of the steel balls, avoiding slippage and displacement of the paper pile during cutting, and improving cutting accuracy.
Smart Images
Figure CN223191050U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a paper cutter, in particular to a flat-plate high-speed air supply and exhaust device of the paper cutter. Background Art
[0002] A paper cutter is a specialized device used to cut stacks of paper. Its working principle is to place a stack of paper on a flat plate and push it to the cutting station. The paper press descends to position and hold the stack in place, and then the cutting blade is controlled to move and cut the stack. To facilitate the pushing of the paper stack onto the flat plate, the plate is provided with a cavity inside, and steel balls are movable within the cavity. By injecting high-pressure gas into the cavity, the steel balls are forced to rise above the plate, allowing the paper stack to rest on the steel balls and push, effectively reducing friction at the bottom of the stack and improving the smoothness of the paper stack. Currently, paper cutters on the market all use a structure with a baffle at the flat plate's air inlet to stop the air supply to the plate. This structure has the disadvantage that when the baffle blocks the air inlet, although no air is forced into the plate, the air already inside the plate is difficult to expel. This causes the steel balls to remain in a high position, requiring a long time to exhaust and descend. After the paper presser is pressed down, the paper stack is prone to slipping and shifting, reducing the cutting accuracy. Utility Model Content
[0003] In view of the shortcomings of the background technology, the technical problem to be solved by the present invention is to provide a flat-plate high-speed air supply and exhaust device for a paper cutter for solving the above-mentioned problems.
[0004] To this end, the present invention is implemented by adopting the following scheme:
[0005] A flat plate high-speed air supply and exhaust device for a paper cutter, characterized in that: it includes a valve body, wherein an air pump exhaust chamber, an air pump air inlet chamber, a flat plate air supply chamber, and a flat plate exhaust chamber are sequentially arranged inside the valve body, and adjacent air chambers are connected to each other, the valve body is provided with an air inlet joint corresponding to the air pump inlet chamber, the valve body is provided with an air outlet joint corresponding to the flat plate air supply chamber, the valve body is provided with an exhaust port corresponding to the air pump exhaust chamber and the flat plate exhaust chamber, and an adjusting rod is also provided within the valve body, and a first sealing cover, a second sealing cover and a third sealing cover are provided on the adjusting rod, when air is supplied to the flat plate, the adjusting rod moves, and the first sealing cover blocks the air pump exhaust chamber and the air pump inlet chamber, and the third sealing cover blocks the air supply chamber and the flat plate exhaust chamber, and when the flat plate is exhausted, the adjusting rod moves, and the second sealing cover blocks the air pump inlet chamber and the flat plate air supply chamber.
[0006] A pneumatic muffler is provided at the exhaust port.
[0007] One end of the regulating rod is connected to the iron core in the electromagnetic valve, and the electromagnetic valve can drive the regulating rod to move.
[0008] The valve body includes a first connecting part, a second connecting part and a third connecting part. The air pump exhaust chamber and the air pump air inlet chamber are located in the first connecting part, the flat plate air supply chamber is located in the second connecting part, and the flat plate exhaust chamber is located in the third connecting part. The first, second and third connecting parts are closely spliced together and connected by fasteners.
[0009] A spring is tightly arranged between the third sealing cover and the valve body.
[0010] The above technical solution is a flat-plate high-speed air supply and exhaust device for a paper cutter. Through the innovative design of the flat-plate air supply and exhaust structure, it can not only effectively realize the rapid air supply of the flat plate, so that the steel balls are lifted for smooth pushing of the paper pile, but also effectively realize the rapid exhaust inside the flat plate, so that the steel balls can quickly descend and separate from the paper pile when the paper pile is pushed to the cutting station, thereby avoiding slipping and displacement of the paper pile during cutting, and ensuring the subsequent cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The utility model has the following drawings:
[0012] Figure 1 This is the external structure diagram of the utility model;
[0013] Figure 2 This is a cross-sectional view of the utility model when air supply is realized;
[0014] Figure 3 This is a cross-sectional view of the utility model when exhaust is realized. DETAILED DESCRIPTION
[0015] As shown in the figure, the utility model discloses a flat-plate high-speed air supply and exhaust device for a paper cutter, comprising a valve body, wherein an air pump exhaust chamber 8, an air pump inlet chamber 10, a flat-plate air supply chamber 12, and a flat-plate exhaust chamber 16 are sequentially arranged inside the valve body, and adjacent air chambers are interconnected. The valve body is provided with an air inlet joint 3 corresponding to the air pump inlet chamber 10, an air outlet joint 5 corresponding to the flat-plate air supply chamber 12, an exhaust port corresponding to the air pump exhaust chamber 8 and the flat-plate exhaust chamber 16, and an air outlet is also arranged in the valve body. An adjusting rod 13 is provided, and a first sealing cover 9, a second sealing cover 11 and a third sealing cover 14 are provided on the adjusting rod 13. When air is supplied to the flat panel, the adjusting rod 13 moves, and the first sealing cover 9 blocks the air pump exhaust chamber 8 and the air pump inlet chamber 10, and the third sealing cover 14 blocks the flat panel air supply chamber 12 and the flat panel exhaust chamber 16. When the flat panel is exhausted, the adjusting rod 13 moves, and the second sealing cover 11 blocks the air pump inlet chamber 10 and the flat panel air supply chamber 12.
[0016] Furthermore, a pneumatic muffler 7 is provided at the exhaust port, which can effectively eliminate the noise generated during rapid exhaust, thereby improving the user experience of the device.
[0017] Furthermore, one end of the adjustment rod 13 is connected to the iron core within the solenoid valve 1, which drives the adjustment rod 13 to move. Using the solenoid valve 1 to control the movement of the adjustment rod 13 enables electric control and adjustment, effectively improving its operational stability and automation. Of course, in addition to using solenoid valve control, common linear drive structures such as cylinders, linear motors, rack and pinion structures, and ball screw structures can also be used to drive the movement of the adjustment rod 13.
[0018] Furthermore, the valve body includes a first connecting portion 2, a second connecting portion 4, and a third connecting portion 6. The air pump exhaust chamber 8 and the air pump intake chamber 10 are located within the first connecting portion 2, the flat plate air supply chamber 12 is located within the second connecting portion 4, and the flat plate exhaust chamber 16 is located within the third connecting portion 6. The first, second, and third connecting portions are closely joined together and connected by fasteners. This structure facilitates the processing and forming of each air chamber and also facilitates later disassembly and maintenance of various internal components.
[0019] Furthermore, a spring 15 is tightly provided between the third sealing cover 14 and the valve body, so as to realize a rapid reset of the regulating rod 13 and adjust the valve body to the air supply state.
[0020] The working principle of the utility model is as follows: when the flat plate is supplied with air, the control regulating rod 13 moves so that the first cover 9 blocks the air pump exhaust chamber 8 and the air pump inlet chamber 10, and the third cover 14 blocks the flat plate air supply chamber 12 and the flat plate exhaust chamber 16. At this time, the high-pressure gas enters the air pump inlet chamber 10 from the air inlet joint 3, and then enters the flat plate air supply chamber 12, and finally is discharged through the air outlet joint 5 and sent to the inner cavity of the flat plate, thereby lifting the steel ball; when the flat plate is supplied with air, the control regulating rod 13 moves so that the first cover 9 blocks the air pump exhaust chamber 8 and the air pump inlet chamber 10, and then the third cover 14 blocks the air supply chamber 12 and the flat plate exhaust chamber 16. When exhausting, the control adjustment rod 13 moves, and the second cover 11 blocks the air pump air inlet chamber 10 and the flat plate air supply chamber 12. At this time, the high-pressure gas in the air pump air inlet chamber 10 enters the air pump exhaust chamber 8 and is discharged from the exhaust port. At the same time, the gas in the flat plate inner cavity will enter the flat plate air supply chamber 12, and then enter the flat plate exhaust chamber 16 and be discharged from the exhaust port, thereby realizing rapid exhaust of the flat plate inner cavity, allowing the steel ball to descend and separate from the paper pile, thereby preventing the paper pile from slipping and shifting.
[0021] The structure of the present invention, through the innovative design of the flat plate air supply and exhaust structure, can not only effectively realize the rapid air supply of the flat plate, so that the steel balls are lifted for the smooth pushing of the paper pile, but also effectively realize the rapid exhaust inside the flat plate, so that the steel balls can quickly descend and separate from the paper pile when the paper pile is pushed to the cutting station, avoiding the paper pile from slipping and shifting during cutting, thereby ensuring the subsequent cutting accuracy.
Claims
1. A flat-plate high-speed air supply and exhaust device for a paper cutter, characterized by: The invention comprises a valve body, wherein an air pump exhaust chamber (8), an air pump inlet chamber (10), a flat plate air supply chamber (12), and a flat plate exhaust chamber (16) are sequentially arranged inside the valve body, and adjacent air chambers are communicated with each other. The valve body is provided with an air inlet joint (3) corresponding to the air pump inlet chamber (10), an air outlet joint (5) corresponding to the flat plate air supply chamber (12), an exhaust port corresponding to the air pump exhaust chamber (8) and the flat plate exhaust chamber (16), and an adjusting rod (13) is further provided inside the valve body, and the adjusting rod (13) is provided with an air outlet. A first cover (9), a second cover (11) and a third cover (14) are provided. When air is supplied to the flat plate, the regulating rod (13) moves, the first cover (9) blocks the air pump exhaust chamber (8) and the air pump inlet chamber (10), and the third cover (14) blocks the flat plate air supply chamber (12) and the flat plate exhaust chamber (16). When air is exhausted from the flat plate, the regulating rod (13) moves, the second cover (11) blocks the air pump inlet chamber (10) and the flat plate air supply chamber (12).
2. A flat-plate high-speed air supply and exhaust device for a paper cutter according to claim 1, characterized in that: A pneumatic muffler (7) is provided at the exhaust port.
3. The flat-plate high-speed air supply and exhaust device for a paper cutter according to claim 1, characterized in that: One end of the regulating rod (13) is connected to the iron core in the electromagnetic valve (1), and the electromagnetic valve (1) can drive the regulating rod (13) to move.
4. A flat-plate high-speed air supply and exhaust device for a paper cutter according to claim 1, characterized in that: The valve body comprises a first connecting portion (2), a second connecting portion (4) and a third connecting portion (6); the air pump exhaust chamber (8) and the air pump air inlet chamber (10) are located in the first connecting portion (2); the flat plate air supply chamber (12) is located in the second connecting portion (4); and the flat plate exhaust chamber (16) is located in the third connecting portion (6); the first, second and third connecting portions are closely spliced together and connected by fasteners.
5. The flat-plate high-speed air supply and exhaust device for a paper cutter according to claim 1, characterized in that: A spring (15) is tightly arranged between the third sealing cover (14) and the valve body.