A clutch mechanism and paper feeding equipment

Abstract

This invention relates to a clutch mechanism and a paper feeding device. The clutch mechanism includes a first sliding member, a second sliding member, and a cover. The first sliding member has a receiving cavity, an opening communicating with the receiving cavity, and a through hole. The second sliding member includes a piston slidably disposed within the receiving cavity and a connecting rod fixedly connected to the piston facing the opening. The piston seals the receiving cavity, dividing it into a first cavity communicating with the through hole and a second cavity communicating with the opening. The cover seals the through hole to fix the first and second sliding members relative to each other. The cover can be removed from the through hole to allow the first and second sliding members to slide relative to each other. This clutch mechanism has a simple structure and is easy to adjust. When the paper feeding device jams, maintenance can be performed without stopping the machine, thereby reducing the maintenance time cost of the entire paper feeding device.

Description

Technical Field

[0001] This invention relates to the field of paper feeding equipment technology, and in particular to a clutch mechanism and a paper feeding device. Background Technology

[0002] Existing paper feeding equipment is prone to paper jams when retrieving paper from stacked multi-layered sheets. While this can be resolved with maintenance shutdowns in small paper feeding systems, large paper production lines typically involve multiple devices, including the paper feeding equipment, operating synchronously. Therefore, maintenance shutdowns also require other equipment to cease operation. Furthermore, the frequent shutdowns for maintenance in large paper feeding systems, which require preheating and operational checks before proceeding to the next stage of production, result in excessively high maintenance time and costs.

[0003] Existing improvements, such as transmission between the drive unit and the driven unit via gears or abutments, facilitate the separation of the drive and driven units during shutdown and maintenance. However, when the drive and driven units are reconnected, wear and tear can easily occur. Over long-term use, parts are prone to wear, leading to asynchronous transmission or even direct damage, thus reducing the service life of the equipment. Summary of the Invention

[0004] Given the high maintenance costs caused by paper jams in existing large-scale paper feeding equipment, it is necessary to provide a clutch mechanism and paper feeding equipment.

[0005] A clutch mechanism, comprising: A first sliding member, the first sliding member having a receiving cavity, an opening communicating with the receiving cavity, and a through hole; A second sliding member, comprising a piston slidably disposed within the receiving cavity and a connecting rod fixedly connected to the piston on the side facing the opening, the piston sealing the receiving cavity to divide the receiving cavity into a first cavity communicating with the through hole and a second cavity communicating with the opening; and A cover is provided in the through hole to fix the first slider and the second slider relative to each other, and the cover is removed from the through hole to allow the first slider and the second slider to slide relative to each other.

[0006] With this configuration, the first and second sliding members are connected by fluid within the receiving cavity as the force transmission medium. The relative fixation of the first and second sliding members is achieved simply by sealing the through-hole connecting the receiving cavity to the outside with a cover, making sealing convenient and easy to operate. To release the relative fixation, simply remove the cover from the through-hole to allow the first cavity to connect with the outside, at which point the piston can slide freely within the receiving cavity. Furthermore, the relative fixation position between the first and second sliding members is related to the total fluid volume within the receiving cavity. When the first and second sliding members slide relative to each other, the total fluid volume within the receiving cavity can be adjusted by controlling the sealing time of the cover, thus making the relative fixation position of the first and second sliding members adjustable. This allows the clutch mechanism to adapt to different clutch scenarios.

[0007] In one embodiment, the connecting rod includes a rod body connected to the piston and a sealing body slidably and sealingly fitted onto the rod body, the sealing body sealing the opening, and the first sliding member also having a balance hole communicating with the second cavity; The cover is provided in the through hole and the balance hole to fix the first slider and the second slider relative to each other. The cover is removed from the through hole and the balance hole so that the through hole and the balance hole are connected to the outside, so that the first slider and the second slider can slide relative to each other.

[0008] This design allows the cover to be installed in both the through hole and the balance hole, providing flexibility in placement and expanding the application scenarios. Since the piston requires lubrication to reduce friction during actual use, the sealing body blocks the opening of the receiving cavity, which helps reduce dust or debris from entering the cavity, preventing piston blockage and thus improving the smoothness of piston sliding.

[0009] In one embodiment, the capping member includes a connecting tube and a clamp detachably clamped to the connecting tube. The two ends of the connecting tube are respectively connected to the through hole and the balance hole. The clamp is clamped to the connecting tube to fix the first sliding member and the second sliding member relative to each other. The clamp is removed from the connecting tube to connect the through hole and the balance hole, so that the first sliding member and the second sliding member can slide relative to each other.

[0010] With this configuration, the through hole and the balance hole are connected by a connecting pipe to connect the first cavity and the second cavity. In this connected state, the piston can slide freely in the receiving cavity. The connecting pipe is then clamped by a pipe clamp to separate the fluid in the first cavity and the second cavity. This makes it easy to fix the relative position of the first sliding member and the second sliding member, making control convenient. Moreover, the position between the first sliding member and the second sliding member is adjustable, allowing the clutch mechanism to adapt to a variety of different application scenarios.

[0011] The present invention also provides a paper feeding device, including a paper feeding pusher, a swing mechanism and a clutch mechanism as described above, wherein the paper feeding pusher is fixedly connected to one of the first sliding member and the second sliding member, and the swing mechanism is drivenly connected to the other of the first sliding member and the second sliding member.

[0012] With this configuration, the aforementioned clutch mechanism can act as a buffer in the transmission between the paper feeding pusher and the swing mechanism. When the paper feeding equipment jams, the clutch mechanism can cut off the power transmission from the swing mechanism to the clutch mechanism, while the swing mechanism can continue to swing, thus facilitating maintenance of the paper feeding equipment without stopping the machine. After maintenance, the power transmission from the swing mechanism to the paper feeding pusher can be restored by re-covering the cover on the through hole. The control is convenient, and there is no wear between the swing mechanism and the paper feeding pusher, which helps to extend the service life of the paper feeding equipment.

[0013] In one embodiment, the paper feeding device further includes a frame, a first stop, and a second stop. The first stop and the second stop are arranged at intervals along the pushing direction of the paper feeding pusher. The first stop protrudes from the paper feeding pusher and the protrusion height of the first stop is less than the thickness of a single sheet of paper. The second stop is fixedly connected to the frame. The distance between the second stop and the paper feeding pusher is greater than the thickness of one sheet of paper and less than the thickness of two sheets of paper to form a paper outlet.

[0014] With this configuration, the first and second stop components work together to remove the bottom layer of paper from the multi-layer paper sheet. The bottom layer of paper sheet is squeezed by the gravity of the upper paper sheet, making it less likely to shake or roll up when pushed. After this layer of paper sheet is pushed out, the upper paper sheet falls automatically, achieving automatic feeding. This paper feeding device has a simple and compact structure, eliminating the need for additional transfer stations, thereby reducing the space occupied and production cost of the paper feeding device.

[0015] In one embodiment, the paper feeding pusher is provided with a plurality of positioning holes spaced apart along the sliding direction of the paper feeding pusher, and the first stop member is engaged with the positioning holes.

[0016] This design, with multiple positioning holes, allows for easy adjustment of the position of the first stop, thus accommodating paper sheets of different sizes.

[0017] In one embodiment, the paper feeding device further includes an adsorption element, which is fixedly connected to the side of the paper feeding pusher facing the second stop, and the adsorption element is located between the first stop and the second stop and close to the paper outlet.

[0018] With this design, the suction device is used to hold the paper sheet near the paper outlet, which can prevent the paper sheet from curling up on the side near the paper outlet and help reduce paper jams.

[0019] In one embodiment, the paper feeding pusher has a limiting hole, and the paper feeding device further includes a limiting member and a driving member. The limiting member is movably installed on the frame, and the driving member is driven to be connected to the limiting member so that the driving member is engaged with the limiting hole.

[0020] With this design, the limiting component can restrict the sliding of the paper feed pusher. When the machine stops, the limiting component can also prevent the paper feed pusher from sliding toward the swing mechanism, thus increasing safety during maintenance.

[0021] In one embodiment, the limiting member includes a rotating part rotatably connected to the frame and a snap-fit ​​part extending from the rotating part toward the paper feeding push plate. The driving member is driven to the rotating part so that the snap-fit ​​part snaps into the limiting hole. The paper feeding device also includes a return spring, the two ends of which are elastically connected to the frame and the snap-fit ​​part of the limiting member, respectively.

[0022] With this configuration, the return spring acts elastically on the locking part of the limiting component, making it easy for the locking part of the limiting component to reset after the machine is shut down for maintenance.

[0023] In one embodiment, the latching portion has an abutting surface and a clearance slope disposed opposite to each other along the sliding direction of the paper feed pusher, the clearance slope gradually approaching the abutting surface in a direction away from the rotating portion.

[0024] This design allows the inclined surface to prevent the locking part from bumping and wearing the limiting hole of the paper feed pusher during rotation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the clutch mechanism in one embodiment of the present invention; Figure 2 for Figure 1 Cross-sectional view of the clutch mechanism; Figure 3 This is a schematic diagram of the paper feeding device according to one embodiment of the present invention; Figure 4 for Figure 3 Front view of the paper feeding device; Figure 5 for Figure 3 Schematic diagram of the paper feed pusher plate; Figure 6 for Figure 3 Schematic diagram of the adsorption component; Figure 7 for Figure 3Schematic diagram of the structure of the first stop component; Figure 8 for Figure 3 A schematic diagram of the structure at the limiting component; Figure 9 This is a schematic diagram of the swing mechanism in one embodiment of the present invention.

[0026] Figure label: 100. Paper feeding equipment; 10. Frame; 11. Frame body; 12. Guide rail; 13. Limiting component; 131. Rotating part; 1311. Spring hole; 132. Snap-fit ​​part; 1321. Abutting surface; 1322. Leaving slope; 14. Mounting plate; 15. Guard plate; 16. Slide rail; 21. Paper feeding push plate; 211. Limiting hole; 212. Positioning hole; 213. Sinking groove; 214. Sliding groove; 22. First stop; 221. Stop part; 222. Adsorption part; 223. Air hole; 23. Second stop; 24. Adsorption element; 241. Adsorption hole; 242. Air collection groove; 30. Swinging mechanism; 31. Slider; 32. Crank handle; 33. Connecting shaft; 34. Turntable; 35. Drive shaft; 40. Clutch mechanism; 41. First sliding member; 411. Receiving cavity; 4111. First cavity; 4112. Second cavity; 412. Opening; 413. Through hole; 414. Balance hole; 42. Second sliding member; 421. Piston; 422. Connecting rod; 4221. Rod body; 4222. Sealing body. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Existing paper feeding equipment is prone to paper jams when picking up paper from stacked multi-layered sheets of paper. In small paper feeding equipment, this can be resolved by stopping the machine for maintenance. However, in large paper product production lines, the drive unit usually drives multiple devices, including the paper feeding equipment, to operate synchronously. Therefore, when the machine is stopped for maintenance, the other devices also stop working.

[0034] Existing improvements, such as transmission between the drive unit and the driven unit via gears or abutments, facilitate the separation of the drive and driven units during shutdown and maintenance. However, when the drive and driven units are reconnected, wear and tear can easily occur. Over long-term use, parts are prone to wear, leading to asynchronous transmission or even direct damage, thus reducing the service life of the equipment.

[0035] Based on the above problems, it is necessary to provide a clutch mechanism 40 and a paper feeding device 100. The clutch mechanism 40 can be used in the field of paper feeding device 100 technology, and can also be used in various production line technology fields such as assembly and packaging production lines and film application production lines.

[0036] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the clutch mechanism 40 in one embodiment of the present invention. Figure 2 for Figure 1 A cross-sectional view of the clutch mechanism 40.

[0037] The present invention provides a clutch mechanism 40 including a first sliding member 41, a second sliding member 42, and a cover member. The first sliding member 41 has a receiving cavity 411, an opening 412 communicating with the receiving cavity 411, and a through hole 413. The second sliding member 42 includes a piston 421 slidably disposed in the receiving cavity 411 and a connecting rod 422 fixedly connected to the piston 421 on the side facing the opening 412. The piston 421 is sealed in the receiving cavity 411 to divide the receiving cavity 411 into a first cavity 4111 communicating with the through hole 413 and a second cavity 4112 communicating with the opening 412. The cover member is sealed in the through hole 413 to fix the first sliding member 41 and the second sliding member 42 relative to each other. The cover member is removed from the through hole 413 to allow the first sliding member 41 and the second sliding member 42 to slide relative to each other.

[0038] In the above embodiment, the fluid within the receiving cavity 411 serves as the force transmission medium between the first sliding member 41 and the second sliding member 42. That is, when the cover blocks the through hole 413, the first cavity 4111 is not connected to the outside. When the piston 421 applies force to the fluid inside the first cavity 4111, the fluid can completely transmit this force to the first sliding member 41, thereby achieving synchronous movement between the first sliding member 41 and the second sliding member 42. In other words, simply blocking the through hole 413 connecting the receiving cavity 411 to the outside is sufficient to fix the first sliding member 41 and the second sliding member 42, making sealing convenient and easy to operate. To release the relative fixation of the first sliding member 41 and the second sliding member 42, simply remove the cover from the through hole 413 to allow the first cavity 4111 to connect to the outside. At this time, the piston 421 can slide freely within the receiving cavity 411.

[0039] Furthermore, the relative fixed position between the first sliding member 41 and the second sliding member 42 is related to the total amount of fluid in the receiving cavity 411. When the first sliding member 41 and the second sliding member 42 slide relative to each other, the total amount of fluid in the receiving cavity 411 can be adjusted by controlling the sealing time of the cover, thereby making the relative fixed position between the first sliding member 41 and the second sliding member 42 adjustable, so that the clutch mechanism 40 can adapt to different clutch scenarios.

[0040] Furthermore, in one embodiment of the present invention, the connecting rod 422 includes a rod body 4221 connected to the piston 421 and a sealing body 4222 slidably and sealingly sleeved on the rod body 4221. The sealing body 4222 seals the opening 412. The first sliding member 41 also has a balance hole 414 communicating with the second cavity 4112. The cover is sealed in the through hole 413 and the balance hole 414 to fix the first slider 41 and the second slider 42 relative to each other. The cover is removed from the through hole 413 and the balance hole 414 so that both the through hole 413 and the balance hole 414 are connected to the outside, so that the first slider 41 and the second slider 42 can slide relative to each other.

[0041] In the above embodiments, the sealing member can be sealed in the through hole 413 and the balance hole 414, and the sealing position is flexible, expanding the application scenarios. Since the piston 421 needs to reduce friction with lubricating oil in actual use, the sealing body 4222 blocks the opening 412 of the receiving cavity 411, which helps to reduce dust or debris from entering the receiving cavity 411, avoids the piston 421 from being blocked, and thus improves the smoothness of the piston 421's sliding.

[0042] Optionally, in one embodiment of the present invention, the capping member includes a connecting tube and a clamp detachably clamped to the connecting tube. The two ends of the connecting tube are respectively connected to a through hole 413 and a balance hole 414. The clamp is clamped to the connecting tube to fix the first sliding member 41 and the second sliding member 42 relative to each other. The clamp is removed from the connecting tube to connect the through hole 413 and the balance hole 414, so that the first sliding member 41 and the second sliding member 42 can slide relative to each other.

[0043] In the above embodiment, the through hole 413 and the balance hole 414 are connected by a connecting pipe to connect the first cavity 4111 and the second cavity 4112. In this connected state, the piston 421 can slide freely in the receiving cavity 411. The connecting pipe is clamped by a pipe clamp to separate the fluid in the first cavity 4111 and the second cavity 4112. This makes it convenient to fix the relative position of the first sliding member 41 and the second sliding member 42, making control convenient. Moreover, the position between the first sliding member 41 and the second sliding member 42 is adjustable, so that the clutch mechanism 40 can be adapted to a variety of different application scenarios.

[0044] It is readily understood that, in another embodiment of the present invention, the balancing hole 414 may also be located on the sealing body 4222, as long as it allows the second cavity 4112 to communicate with the outside.

[0045] Existing paper feeding equipment generally uses an adsorption gripping method to remove paper sheets from stacked multi-layer paper sheets and transfer them to the processing area. This method requires a separate transfer station and a corresponding transfer device in the paper feeding equipment. This transfer device needs to complete multiple actions such as adsorption, lifting, displacement, descent, and release. The structure is complex, and the procurement and maintenance costs are high, resulting in high production costs in the long term.

[0046] In view of the above problems, the present invention also provides a paper feeding device 100.

[0047] Please see Figures 3 to 5 , Figure 3 This is a schematic diagram of the paper feeding device 100 according to one embodiment of the present invention. Figure 4 for Figure 3 A front view of the paper feeding device 100. Figure 5 for Figure 3 A schematic diagram of the structure of the paper feed pusher plate 21.

[0048] The paper feeding device 100 provided by the present invention includes a frame 10, a paper feeding pusher 21, a first stop 22, a second stop 23, a swing mechanism 30, and a clutch mechanism 40 as described above.

[0049] The frame 10 includes a frame body 11 and a guide rail 12 fixedly connected to the frame body 11. The paper feeding pusher 21 is slidably mounted on the guide rail 12. A first stop 22 and a second stop 23 are arranged at intervals along the pushing direction of the paper feeding pusher 21. The first stop 22 protrudes from the paper feeding pusher 21 and the protrusion height of the first stop 22 is less than the thickness of a single paper sheet. The second stop 23 is fixedly connected to the frame body 11. The distance between the second stop 23 and the paper feeding pusher 21 is greater than the thickness of one paper sheet and less than the thickness of two paper sheets to form a paper outlet.

[0050] The paper feeding push plate 21 is fixedly connected to one of the first sliding member 41 and the second sliding member 42, and the swing mechanism 30 is driven to be connected to the other of the first sliding member 41 and the second sliding member 42.

[0051] In the paper feeding device 100 provided by the present invention, the paper feeding pusher 21 has the dual functions of bearing and feeding. The first stop 22 and the second stop 23 cooperate to remove the bottom layer of paper in the multi-layer paper sheet. Since the bottom layer of paper sheet is squeezed by the gravity of the upper paper sheet, it is not easy to shake or roll up when pushed. After the paper sheet is pushed out, the paper sheet above automatically falls down, realizing automatic feeding. This paper feeding device 100 has a simple and compact structure and does not require additional transfer station, thereby reducing the space occupation and production cost of the paper feeding device 100.

[0052] In the aforementioned paper feeding device 100, the clutch mechanism 40 can play a buffering role in the transmission between the paper feeding push plate 21 and the swing mechanism 30. When the paper feeding device 100 jams, the clutch mechanism 40 can cut off the power transmission from the swing mechanism 30 to the clutch mechanism 40, while the swing mechanism 30 can maintain its swing, thus facilitating the paper feeding device 100 to be maintained without stopping the machine for maintenance. After maintenance, the power transmission from the swing mechanism 30 to the paper feeding push plate 21 can be restored by re-covering the cover on the through hole 413. The control is convenient, and there is no wear between the swing mechanism 30 and the paper feeding push plate 21, which helps to extend the service life of the paper feeding device 100.

[0053] Optionally, in one embodiment of the present invention, the frame 10 further includes a baffle plate 15 fixedly connected to the frame body 11, and a slide groove 214 is provided on the feeding push plate, with the bottom edge of the baffle plate 15 inserted into the slide groove 214.

[0054] Optionally, in one embodiment of the present invention, the paper feeding pusher 21 is provided with a plurality of positioning holes 212 arranged at intervals along the sliding direction of the paper feeding pusher 21, and the first stop member 22 is engaged with the positioning holes 212. The arrangement of the plurality of positioning holes 212 facilitates the adjustment of the position of the first stop member 22, thereby adapting to paper sheets of different sizes.

[0055] Optionally, in one embodiment of the present invention, the paper feeding pusher 21 is further provided with a sinking groove 213, the positioning hole 212 is provided at the bottom of the sinking groove 213, and the first stop member 22 is accommodated in the sinking groove 213.

[0056] Please refer to the following: Figure 3 , Figure 5 and Figure 6 , Figure 5 for Figure 3 A schematic diagram of the structure of the paper feeder plate 21. Figure 6 for Figure 3A schematic diagram of the structure of the adsorption element 24. Optionally, in one embodiment of the present invention, the paper feeding device 100 further includes an adsorption element 24, which is fixedly connected to the side of the paper feeding push plate 21 facing the second stop 23. The adsorption element 24 is located between the first stop 22 and the second stop 23 and is close to the paper outlet. The adsorption element 24 has a plurality of adsorption holes 241, and an air collecting groove 242 is also provided on the side facing the paper feeding push plate 21. The adsorption element 24 is used to adsorb the side of the paper sheet close to the second stop 23. By adsorbing the side of the paper sheet close to the paper outlet with the adsorption element 24, the side of the paper sheet close to the paper outlet can be prevented from curling up, which helps to reduce paper jams.

[0057] Please see Figure 7 , Figure 7 for Figure 3 A schematic diagram of the structure of the first stop member 22. Optionally, in one embodiment of the present invention, the first stop member 22 includes a stop portion 221 and an adsorption portion 222 located on the side of the stop portion 221 near the second stop member 23. The side of the stop portion 221 away from the adsorption portion 222 is curved. The height of the side of the stop portion 221 near the adsorption portion 222 protruding from the surface of the paper feed push plate 21 is less than the thickness of a single paper sheet. The adsorption portion 222 is provided with air holes 223 for adsorbing paper sheets.

[0058] Please refer to the following: Figure 3 and Figure 8 , Figure 8 for Figure 3 A schematic diagram of the structure of the limiting component 13.

[0059] Optionally, in one embodiment of the present invention, the paper feed pusher 21 has a limiting hole 211, and the paper feeding device 100 further includes a limiting member 13 and a driving member. The limiting member 13 is movably mounted on the frame 11, and the driving member is driven to the limiting member 13 so that the driving member is engaged with the limiting hole 211. The limiting member 13 can restrict the sliding of the paper feed pusher 21. During shutdown maintenance, the limiting member 13 can also prevent the paper feed pusher 21 from sliding toward the swing mechanism 30, increasing the safety during shutdown maintenance.

[0060] Specifically, in the above embodiment, the limiting member 13 includes a rotating part 131 rotatably connected to the frame 11 and a snap-fit ​​part 132 extending from the rotating part 131 toward the paper feeding push plate 21. A driving member is driven to connect to the rotating part 131 so that the snap-fit ​​part 132 snaps into the limiting hole 211. The rotating part 131 also has a spring hole 1311 near the snap-fit ​​part 132. The paper feeding device 100 also includes a return spring. The two ends of the return spring are elastically connected to the spring holes 1311 of the frame 11 and the rotating part 131 of the limiting member 13, respectively, so as to facilitate the snap-fit ​​part 132 of the limiting member 13 to reset after the machine is stopped for maintenance.

[0061] Furthermore, the latching part 132 has an abutment surface 1321 and a clearance slope 1322 that are disposed opposite to each other along the sliding direction of the paper feed pusher 21. The clearance slope 1322 gradually approaches the abutment surface 1321 in a direction away from the rotating part 131. The clearance slope 1322 prevents the latching part 132 from causing bumping and wear to the limiting hole 211 of the paper feed pusher 21 during rotation.

[0062] Please see Figure 9 , Figure 9 This is a schematic diagram of the swing mechanism 30 in one embodiment of the present invention.

[0063] Optionally, in one embodiment of the present invention, the frame 10 further includes a mounting plate 14 and a slide rail 16 fixedly connected to the frame body 11. The swing mechanism 30 includes a slider 31, a crank 32, a turntable 34, a drive shaft 35, and a connecting shaft 33. The slider 31 is slidably mounted on the slide rail 16. The two ends of the crank 32 are rotatably connected to the connecting shaft 33 and the slider 31, respectively. The connecting shaft 33 is connected to the edge of the turntable 34. The turntable 34 is fixedly connected to the drive shaft 35. Under the drive of the drive shaft 35, the turntable 34 drives the connecting shaft 33 to rotate so that the end of the crank 32 connected to the slider 31 drives the slider 31 to reciprocate along the slide rail 16.

[0064] Optionally, in one embodiment of the present invention, a floating joint is provided between the connecting rod 422 of the clutch mechanism 40 and the slider 31 of the swing mechanism 30 to reduce the matching error between the clutch mechanism 40 and the swing mechanism 30.

[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A clutch mechanism, characterized in that, include: The first slider (41) has a receiving cavity (411), an opening (412) communicating with the receiving cavity (411), a through hole (413) and a balance hole (414). The second sliding member (42) includes a piston (421) slidably disposed within the receiving cavity (411) and a connecting rod (422) fixedly connected to the piston (421) on the side facing the opening (412). The piston (421) seals the receiving cavity (411) to divide the receiving cavity (411) into a first cavity (4111) communicating with the through hole (413) and a second cavity (4112) communicating with the opening (412) and the balance hole (414). The connecting rod (422) includes a rod body (4221) connected to the piston (421) and a sealing body (4222) slidably and sealingly fitted onto the rod body (4221). The sealing body (4222) seals the opening (412). A cover is provided in the through hole (413) and the balance hole (414) to fix the first slider (41) and the second slider (42) relative to each other. The cover is removed from the through hole (413) and the balance hole (414) so ​​that the through hole (413) and the balance hole (414) are connected to the outside, so that the first slider (41) and the second slider (42) can slide relative to each other.

2. The clutch mechanism according to claim 1, characterized in that, The capping component includes a connecting tube and a clamp detachably clamped to the connecting tube. The two ends of the connecting tube are respectively connected to the through hole (413) and the balance hole (414). The clamp is clamped to the connecting tube to fix the first sliding member (41) and the second sliding member (42) relative to each other. The clamp is removed from the connecting tube to connect the through hole (413) and the balance hole (414) so ​​that the first sliding member (41) and the second sliding member (42) can slide relative to each other.

3. A paper feeding device, characterized in that, It includes a paper feed pusher (21), a swing mechanism (30), and a clutch mechanism (40) as described in claim 1 or 2. The paper feed pusher (21) is fixedly connected to one of the first sliding member (41) and the second sliding member (42), and the swing mechanism (30) is driven to the other of the first sliding member (41) and the second sliding member (42).

4. The paper feeding device according to claim 3, characterized in that, The paper feeding device (100) further includes a frame (10), a first stop (22) and a second stop (23). The first stop (22) and the second stop (23) are arranged at intervals along the pushing direction of the paper feeding pusher (21). The first stop (22) protrudes from the paper feeding pusher (21) and the protrusion height of the first stop (22) is less than the thickness of a single paper sheet. The second stop (23) is fixedly connected to the frame (10). The distance between the second stop (23) and the paper feeding pusher (21) is greater than the thickness of one paper sheet and less than the thickness of two paper sheets to form a paper outlet.

5. A paper feeding device according to claim 4, characterized in that, The paper feeding pusher (21) is provided with a plurality of positioning holes (212) arranged at intervals along the sliding direction of the paper feeding pusher (21), and the first stop (22) is engaged in the positioning holes (212).

6. A paper feeding device according to claim 4, characterized in that, The paper feeding device (100) further includes an adsorption element (24), which is fixedly connected to the side of the paper feeding push plate (21) facing the second stop (23). The adsorption element (24) is located between the first stop (22) and the second stop (23) and is close to the paper outlet.

7. A paper feeding device according to claim 4, characterized in that, The paper feeding push plate (21) has a limiting hole (211). The paper feeding device (100) also includes a limiting member (13) and a driving member. The limiting member (13) is movably installed on the frame (10). The driving member is driven to the limiting member (13) so that the driving member is engaged in the limiting hole (211).

8. A paper feeding device according to claim 7, characterized in that, The limiting member (13) includes a rotating part (131) rotatably connected to the frame (10) and a snap-fit ​​part (132) extending from the rotating part (131) toward the paper feeding push plate (21). The paper feeding device also includes a driving member, which is driven connected to the rotating part (131) to make the snap-fit ​​part (132) snap into the limiting hole (211). The paper feeding device (100) also includes a return spring, the two ends of which are elastically connected to the frame (10) and the snap-fit ​​part (132) of the limiting member (13), respectively.

9. A paper feeding device according to claim 8, characterized in that, The latching part (132) has an abutting surface (1321) and a clearance slope (1322) that are disposed opposite to each other along the sliding direction of the paper feed pusher (21). The clearance slope (1322) gradually approaches the abutting surface (1321) in a direction away from the rotating part (131).

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