A printer anti-vibrator, a printer shaft, and an anti-vibration method

Abstract

The present invention relates to the technical field of printers, and particularly relates to a printer anti-vibration device, a printer shaft and an anti-vibration method. The anti-vibration device of the printer shaft includes a printer body, on which there are paper cassette components arranged in an array. Inside the paper cassette components, there is a bearing component. Above the bearing component, there is a printer shaft component. Outside the printer shaft component, there are anti-vibration components arranged in an array. The anti-vibration components include fitting wheels. On the outside of the fitting wheels, there are pushing pieces arranged in an array. Between two adjacent pushing pieces, there is a support piece. By setting the support piece in the present invention, during the rotation of the fitting wheel, the rotating roller fills the area of the flexible sleeve between the two connecting blocks and applies a top thrust to the flexible sleeve, so that the outside of the flexible sleeve can be in full contact with the printing paper, avoiding the phenomenon that the area of the flexible sleeve between the two connecting blocks is sunken and the outside of the flexible sleeve cannot be in full contact with the printing paper.

Description

Technical Field

[0001] The present invention relates to the technical field of printers, and in particular to a printer anti-vibration device, a printer shaft and an anti-vibration method. Background Art

[0002] The printer's paper feed shaft is a critical component responsible for smoothly and accurately transporting paper from the paper inlet to the print area and then out through the paper outlet. During this process, the stability and accuracy of the paper feed shaft are directly related to print quality and device life. Continuous advancements in printing technology are placing higher demands on the paper feed shaft's design, material selection, and manufacturing process.

[0003] The Chinese invention patent with application number CN202120777796.7 discloses a printer shaft with a shock-absorbing function, including a printer shaft body, a first buffer rod and a second buffer rod. The first buffer rod is provided at the left end of the outer surface of the printer shaft body, and the second buffer rod is provided at the right end of the outer surface of the printer shaft body. The left surface of the printer shaft body is provided with a first buffer pad, and the right surface of the printer shaft body is provided with a second buffer pad. Compared with the prior art, the device can effectively buffer and reduce the shock of the printer shaft through the first buffer pad, the second buffer pad, the first damper, the second damper, the first shock-absorbing pad, the second shock-absorbing pad and the shock-absorbing spring, thereby reducing damage to the printer shaft and increasing the service life of the printer shaft. The first limit rod, the second limit rod and the baffle can be provided to limit and fix the printer shaft to prevent the printer shaft from shaking during buffering and shock-absorbing.

[0004] Although the prior art reduces the vibration generated by the printer shaft during operation by providing a buffering and shock-absorbing device, in actual application, the buffering and shock-absorbing device described in the above document only performs shock-absorbing and buffering treatment in the transverse direction of the printer shaft. The vibration generated by the printer shaft is mostly longitudinal vibration. The prior art lacks a shock-absorbing treatment in the longitudinal direction of the printer shaft.

[0005] During printer operation, the printer's shaft is in constant contact with the paper surface. Dust carried by the paper often adheres to this contact surface, gradually encroaching on the intended contact area between the paper and the transport shaft. This change not only reduces the actual contact area but also causes fluctuations in the coefficient of friction. Consequently, the paper experiences uneven forces during transport, which in turn causes vibrations in the printer shaft, impacting the stability and efficiency of the printing process.

[0006] When the printer shaft is deformed, the friction between the paper in the deformed area and the shaft will change accordingly. This change directly weakens the effective transmission ability of the printer shaft to the paper and reduces the transmission efficiency. It is worth noting that the current technical means cannot achieve the automatic recovery of the deformed position of the printer shaft. This means that once the shaft is deformed, it is often necessary to replace the printer shaft to solve the problem, which undoubtedly increases the maintenance cost and shortens the service life and durability of the entire printing device.

[0007] It is necessary to invent a printer anti-vibration device, a printer shaft and an anti-vibration method to solve the above problems. Summary of the Invention

[0008] The purpose of the present invention is to provide a printer anti-vibration device, a printer shaft and an anti-vibration method to solve the technical problems proposed in the above background technology.

[0009] To achieve the above purpose, the present invention provides the following technical solutions:

[0010] An anti-vibration device for a printer shaft includes a printer body, on which a paper cassette assembly is arranged in an array distribution. Inside the paper cassette assembly, there is a bearing assembly. Above the bearing assembly is used for placing printing paper. Above the bearing assembly, there is a printer shaft assembly. Outside the printer shaft assembly, there is an anti-vibration assembly arranged in an array distribution;

[0011] The anti-vibration assembly includes a fitting wheel. In the middle of the fitting wheel, there is a fitting groove. Outside the fitting wheel, there are push members arranged in an array distribution. Between two adjacent push members, there is a support member;

[0012] The push member includes a push rod. The fixed end of the push rod is arranged inside the fitting wheel. The output end of the push rod has a connection block, on which there are fitting holes arranged in an array distribution;

[0013] Outside the fitting wheel, there is a flexible sleeve. Inside the flexible sleeve, there are fitting blocks arranged in an array distribution. The fitting blocks are connected to the fitting holes.

[0014] Preferably, the support member includes a movable groove opened inside the fitting wheel. The cross-section of the movable groove is fan-shaped. Inside the movable groove, there is an elastic telescopic part;

[0015] The fixed end of the elastic telescopic part is rotationally connected to the bottom of the movable groove through a hinge. The output end of the elastic telescopic part has a rotating roller, which is rotationally connected to the output end of the elastic telescopic part. The rotating roller contacts the inner side of the flexible sleeve.

[0016] Preferably, the paper box assembly includes a box body, both sides of the box body are slidably connected to the printer body through the setting of slide rails, and a separation pad is elastically connected to one side of the box body close to the printer shaft assembly;

[0017] A baffle is provided at the end of the box body, and the baffle is used for limiting the sliding of the box body in the printer body;

[0018] A placement groove is provided inside the box body, the placement groove includes a straight part and a wedge part, a stop component is provided on the straight part, and the bearing component is located inside the wedge part.

[0019] Preferably, the bearing component includes a supporting plate, air grooves are provided at the top of the supporting plate in a staggered distribution, one end of the supporting plate is rotatably connected to the box body through a rotating member, and the rotating member is provided at the junction of the straight part and the wedge part;

[0020] An adaptation part is provided at the end of the supporting plate far from the rotating member, one end of the adaptation part is connected to the bottom of the supporting plate, and the other end of the adaptation part is connected to the bottom of the wedge part.

[0021] Preferably, the printer shaft assembly includes a machine shaft body rotatably connected to the box body, a plurality of wedge blocks are arranged in an array on the outer side of the machine shaft body, and the machine shaft body is connected to the fitting grooves on the fitting wheel through the wedge blocks;

[0022] A driving component is provided at one end of the machine shaft body, and an air extraction component is provided at the other end of the machine shaft body;

[0023] The air extraction component includes an air extraction hole opened on the machine shaft body, and the air extraction hole is connected to an air extraction device arranged inside the printer body.

[0024] Preferably, the driving component includes a transmission wheel, the transmission wheel is arranged at the end of the machine shaft body, a transmission belt is arranged on the outer side of the transmission wheel, the other end of the transmission belt is provided with a driving wheel, the driving wheel is in transmission connection with the transmission belt through the transmission belt, and a driving device is provided at the end of the driving wheel.

[0025] Preferably, the fitting wheel located in the middle of the machine shaft body is fixedly connected to the machine shaft body through a locking member, and the fitting wheels located at both ends of the machine shaft body are slidably connected to the machine shaft body;

[0026] A plurality of pushing parts are arranged between two adjacent fitting wheels, and the pushing parts are arranged in an annular array around the machine shaft body.

[0027] Preferably, the stop component includes a sliding groove opened on the straight part, the sliding groove is perpendicular to the supporting plate, a sliding block is arranged inside the sliding groove, and the sliding block is in limit sliding connection with the sliding groove.

[0028] The present invention also provides a method for preventing vibration of a printer shaft, and the method for preventing vibration includes the following steps:

[0029] S1. First, place the printing paper on the supporting plate inside the box body. During this process, the adaptation part drives the supporting plate to move downward, ensuring that the flexible sleeve on the fitting wheel is in close contact with the printing paper, and preparing for the subsequent conveying process;

[0030] S2. Subsequently, accurately place the paper box assembly loaded with the printing paper inside the printer body, start the operation program of the printer body, and the operation program controls the driving device to start. The driving device realizes the stable and continuous conveying of the printing paper through the anti-vibration component integrated on the main body of the machine shaft;

[0031] S3. During the conveying process of the printing paper, evaluate the working state of the flexible sleeve by detecting the pressure value of the contact surface between the flexible sleeve and the printing paper and combining with the real-time telescopic amount of the elastic telescopic part. Based on the working state, adjust the corresponding anti-vibration component and implement necessary structural transformation to ensure the stability of the printing paper conveying process.

[0032] Technical effects and advantages of the present invention:

[0033] 1. By setting the support member in the present invention, during the rotation of the fitting wheel, the fixed end of the elastic telescopic part rotates relatively under the limitation of the magnetic suction force. The rotating roller fills the area of the flexible sleeve between the two connecting blocks and applies a top thrust to the flexible sleeve, so that the outer side of the flexible sleeve can be in full contact with the printing paper, avoiding the phenomenon that the area of the flexible sleeve between the two connecting blocks is sunken due to the support of the connecting blocks to the flexible sleeve, resulting in the phenomenon that the flexible sleeve cannot be in full contact with the printing paper.

[0034] 2. By setting the pushing part and the support part in the present invention, determine the working state of the flexible sleeve by detecting the values of the pressure sensor and the telescopic amount sensor; when it is detected that a large amount of paper scraps adhere to the flexible sleeve on the fitting wheel, control the flexible sleeve to be separated from the printing paper, and make the elastic telescopic part drive the rotating roller to impact the inner side of the flexible sleeve to clean the paper scraps adhering to the flexible sleeve; when it is detected that the thickness of the flexible sleeve on the fitting wheel becomes thinner, control the diameter of the flexible sleeve to expand so that it can be in full contact with the printing paper; when it is detected that a depression occurs in a partial flexible sleeve area on the fitting wheel, control the elastic telescopic rod to increase the extrusion force on the depression area to facilitate the depression area to gradually return to the original state; when the control system detects that the paper is skewed, the control system controls to increase the pressure on the fitting wheel on the opposite side of the skewed direction to generate a reverse correction force to make the paper return to the correct conveying path. Description of the drawings

[0035] Figure 1 It is a schematic structural diagram of the printer body of the present invention;

[0036] Figure 2 It is a schematic structural diagram of the blocking component of the present invention;

[0037] Figure 3 It is a schematic structural diagram of the paper box component of the present invention;

[0038] Figure 4 It is a schematic structural diagram of the placement groove of the present invention;

[0039] Figure 5 It is a schematic structural diagram of the bearing component of the present invention;

[0040] Figure 6 It is a schematic structural diagram of the driving component of the present invention;

[0041] Figure 7 For the present invention Figure 6 The enlarged structural diagram at position A in;

[0042] Figure 8 It is a schematic structural diagram of the anti-vibration component of the present invention;

[0043] Figure 9 It is a schematic structural diagram of the pushing member of the present invention;

[0044] Figure 10 It is a schematic structural diagram of the support member of the present invention;

[0045] Figure 11 It is a schematic structural diagram of the flexible sleeve of the present invention;

[0046] Figure 12 It is a schematic plan view of the fitting wheel of the present invention.

[0047] In the figure: 1. Printer body; 2. Paper box component; 201. Box body; 202. Baffle; 203. Slide rail; 204. Placement groove; 2041. Straight part; 2042. Wedge part; 3. Printing paper; 4. Blocking component; 401. Chute; 402. Sliding block; 5. Bearing component; 501. Support plate; 502. Adaptation part; 503. Air groove; 6. Printer shaft component; 601. Shaft body; 602. Wedge block; 603. Air extraction hole; 7. Driving component; 701. Transmission wheel; 702. Transmission belt; 703. Driving wheel; 704. Driving device; 8. Anti-vibration component; 801. Fitting wheel; 802. Fitting groove; 803. Pushing member; 8031. Pushing rod; 8032. Connecting block; 8033. Fitting hole; 804. Support member; 8041. Activity groove; 8042. Elastic telescopic part; 8043. Rotating roller; 805. Flexible sleeve; 806. Fitting block; 9. Pushing part; 1). Separation pad. Specific embodiments

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0049] Reference Figures 1 to 12 As shown, the present invention provides an anti-vibration device for a printer shaft, comprising a printer body 1, on which a paper box assembly 2 distributed in an array is provided, a carrying assembly 5 is provided inside the paper box assembly 2, and printing paper 3 is placed above the carrying assembly 5, a printer shaft assembly 6 is provided above the carrying assembly 5, and an anti-vibration assembly 8 distributed in an array is provided on the outside of the printer shaft assembly 6.

[0050] During the rotation of the printer shaft assembly 6 , the anti-vibration assembly 8 is synchronously driven to rotate. The anti-vibration assembly 8 is in contact with the printing paper 3 . During the rotation, the anti-vibration assembly 8 drives the printing paper 3 to rotate.

[0051] The anti-vibration assembly 8 includes an engaging wheel 801 , a engaging groove 802 is provided in the middle of the engaging wheel 801 , and pushers 803 distributed in an array are provided on the outer side of the engaging wheel 801 , and a support member 804 is provided between two adjacent pushers 803 .

[0052] The pushing member 803 is used to expand the diameter of the engaging wheel 801 , and the supporting member 804 distributed between two adjacent pushing members 803 is used to fill the space between the two pushing members 803 .

[0053] The pushing member 803 includes a pushing rod 8031 , the fixed end of which is arranged inside the engaging wheel 801 , and an output end of the pushing rod 8031 is provided with a connecting block 8032 , which is provided with engaging holes 8033 distributed in an array.

[0054] The pushing rod 8031 includes an electric push rod, the fixed end of which is arranged inside the interlocking wheel 801, and the output end of the electric push rod is connected to the connecting block 8032. When the diameter of the interlocking wheel 801 is expanded, the pushing rod 8031 pushes the connecting block 8032 to move toward the circumferential side of the interlocking wheel 801, and the connecting block 8032 pushes the flexible sleeve 805 to expand.

[0055] A pressure sensor is provided at the connection between the connecting block 8032 and the pushing rod 8031 , and the pressure sensor is used to detect the pressure value of the contact surface between the flexible sleeve 805 and the printing paper 3 .

[0056] A flexible sleeve 805 is provided on the outer side of the engaging wheel 801 , and an array of engaging blocks 806 are provided on the inner side of the flexible sleeve 805 . The engaging blocks 806 are connected to the engaging holes 8033 .

[0057] The flexible sleeve 805 includes a rubber ring. During operation, the engaging wheel 801 drives the rubber ring to rotate through the connecting block 8032, and the rubber ring drives the printing paper 3 to be conveyed through the frictional force between the rubber ring and the printing paper 3.

[0058] By providing the engaging block 806 and the engaging hole 8033, the rubber ring is tightly connected to the engaging wheel 801, preventing the engaging wheel 801 from slipping during the conveyance of the printing paper 3.

[0059] Refer to Figures 8 to 12 As shown, the support member 804 includes a movable groove 8041 formed inside the engaging wheel 801. The cross-section of the movable groove 8041 is fan-shaped, and an elastic telescopic portion 8042 is provided inside the movable groove 8041.

[0060] The elastic telescopic portion 8042 includes an elastic telescopic rod. The fixed end of the elastic telescopic rod is rotatably connected to the bottom of the movable groove 8041. A rotating roller 8043 is provided at the output end of the elastic telescopic rod, and a magnetic block is embedded inside the output end of the elastic telescopic rod.

[0061] A telescopic amount sensor is provided inside the elastic telescopic portion 8042, and the telescopic amount sensor is used to detect the telescopic amount of the elastic telescopic portion 8042.

[0062] The fixed end of the elastic telescopic portion 8042 is rotatably connected to the bottom of the movable groove 8041 through a hinge member. A rotating roller 8043 is provided at the output end of the elastic telescopic portion 8042. The rotating roller 8043 is rotatably connected to the output end of the elastic telescopic portion 8042, and the rotating roller 8043 contacts the inner side of the flexible sleeve 805.

[0063] The length of the rotating roller 8043 is adapted to the width of the flexible sleeve 805. When the flexible sleeve 805 rotates, the rotating roller 8043 is always at the contact point between the flexible sleeve 805 and the printing paper 3.

[0064] Refer to Figures 2 to 4 As shown, the paper box assembly 2 includes a box body 201. Both sides of the box body 201 are slidably connected to the printer body 1 by providing slide rails 203. A separation pad 10 is elastically connected to one side of the box body 201 close to the printer shaft assembly 6.

[0065] The separation pad 10 is used to block the printing paper 3, preventing the frictional force between the flexible sleeve 805 and the printing paper 3 from being too large, resulting in transporting too much printing paper 3 at one time.

[0066] Wings are provided on both sides of the separation pad 10, and springs are provided on the wings and connected to the box body 201. The setting of the separation pad 10 on the box body 201 belongs to the prior art, so it will not be elaborated here.

[0067] A baffle 202 is provided at the end of the box body 201, and the baffle 202 is used to limit the sliding of the box body 201 in the printer body 1.

[0068] A placement groove 204 is provided inside the box body 201. The placement groove 204 includes a flat portion 2041 and a wedge portion 2042. A stop component 4 is provided on the flat portion 2041, and a bearing component 5 is located inside the wedge portion 2042.

[0069] Refer to Figures 3 to 5 As shown, the bearing component 5 includes a support plate 501. Air grooves 503 are provided at the top of the support plate 501 in a staggered distribution. One end of the support plate 501 is rotatably connected to the box body 201 through a rotating member, and the rotating member is provided at the junction of the flat portion 2041 and the wedge portion 2042.

[0070] Electromagnetic blocks are provided at the bottom of the support plate 501 in an array distribution, and the positions where the electromagnetic blocks are located correspond to the positions where the elastic telescopic portions 8042 are located.

[0071] By controlling the magnitude of the current passed into the electromagnetic blocks, the telescopic amount of the elastic telescopic portion 8042 can be controlled, so that the rotating roller 8043 is in contact with the inner side of the flexible sleeve 805.

[0072] An adaptation portion 502 is provided at one end of the support plate 501 away from the rotating member. One end of the adaptation portion 502 is connected to the bottom of the support plate 501, and the other end of the adaptation portion 502 is connected to the bottom of the wedge portion 2042.

[0073] The adaptation portion 502 includes an electric push rod 8031. One end of the electric push rod 8031 is connected to the support plate 501, and the other end of the electric push rod 8031 is connected to the bottom of the wedge portion 2042.

[0074] Refer to Figures 6 to 7 As shown, the printer shaft assembly 6 includes a shaft body 601 rotatably connected to the box body 201. Wedges 602 are provided on the outer side of the shaft body 601 in an array distribution, and the shaft body 601 is connected to the fitting groove 802 on the fitting wheel 801 through the wedges 602.

[0075] The shaft body 601 drives the fitting wheel 801 to rotate through the wedges 602, and the fitting wheel 801 can reciprocally slide on the shaft body 601 along the wedges 602.

[0076] A driving component 7 is provided at one end of the shaft body 601, and an air extraction component is provided at the other end of the shaft body 601.

[0077] The driving component 7 is provided inside the box body 201, and the driving component 7 is used to drive the shaft body 601 to rotate.

[0078] The air extraction component is arranged on the main body of the machine shaft 601, and the air extraction component is used to clean the impurities adhered to the flexible sleeve 805.

[0079] The air extraction component includes an air extraction hole 603 opened on the main body of the machine shaft 601, and the air extraction hole 603 is connected to an air extraction device arranged inside the printer body 1.

[0080] Refer to Figure 6 As shown, the driving component 7 includes a transmission wheel 701. The transmission wheel 701 is arranged at the end of the main body of the machine shaft 601. A transmission belt 702 is arranged on the outer side of the transmission wheel 701. The other end of the transmission belt 702 is provided with a driving wheel 703. The driving wheel 703 is in transmission connection with the transmission belt 702 through the transmission belt 702, and a driving device 704 is arranged at the end of the driving wheel 703.

[0081] The driving device 704 is arranged inside the box body 201. By starting the driving device 704, the driving device 704 drives the driving wheel 703 to rotate. The driving wheel 703 drives the transmission wheel 701 to rotate through the transmission belt 702, and the transmission wheel 701 drives the fitting wheel 801 to rotate through the main body of the machine shaft 601.

[0082] Refer to Figures 6 to 12 As shown, the fitting wheel 801 located in the middle of the main body of the machine shaft 601 is fixedly connected to the main body of the machine shaft 601 through a locking member, and the fitting wheels 801 located at both ends of the main body of the machine shaft 601 are slidably connected to the main body of the machine shaft 601.

[0083] The locking member includes an electromagnetic plug arranged on the fitting wheel 801 and a slot arranged on the main body of the machine shaft 601, and the electromagnetic plug is adapted to the slot.

[0084] An array of pushing parts 9 are arranged between two adjacent fitting wheels 801, and the pushing parts 9 are distributed in a circular array around the main body of the machine shaft 601.

[0085] The pushing part 9 includes an electric push rod. The fixed end of the electric push rod is connected to the fitting wheel 801 in a fixed state, and the output end of the electric push rod is connected to the fitting wheel 801 in a movable state. By adjusting the elongation of the pushing part 9, the three fitting wheels 801 distributed on the main body of the machine shaft 601 are adapted to the size of the printing paper 3, so as to avoid the phenomenon that the flexible sleeve 805 distributed on the fitting wheel 801 cannot contact the printing paper 3, resulting in unstable conveying of the printing paper 3.

[0086] Refer to Figures 2 to 4 As shown, the blocking component 4 includes a chute 401 opened on the straight part 2041. The chute 401 is perpendicular to the supporting plate 501. A sliding block 402 is arranged inside the chute 401, and the sliding block 402 is in limiting sliding connection with the chute 401.

[0087] The sliding block 402 blocks the printing paper 3 on the supporting plate 501 to prevent part of the printing paper 3 from slipping onto the flat part 2041 area during the conveyance of the printing paper 3.

[0088] Inside the printer body 1, there is a control terminal. Inside the control terminal, there is a control system. The control system is used to control all the electrical components inside the printer body 1 to operate.

[0089] In the initial state, the adaptation part 502 is in a contracted state, and the supporting plate 501 is in a deflected state, that is, one end of the supporting plate 501 facing the flat part 2041 is higher than the end of the supporting plate 501 facing the wedge part 2042.

[0090] During use, the staff takes out the paper cassette assembly 2 from inside the printer body 1, places the printing paper 3 on the supporting plate 501 inside the box body 201, and the printing paper 3 located above the supporting plate 501 contacts the flexible sleeve 805. After placing the printing paper 3, the staff places the paper cassette assembly 2 inside the printer body 1.

[0091] It should be noted that: The box body 201 is slidably connected to the printer body 1 through the slide rail 203. After the box body 201 enters the inside of the printer body 1, the baffle 202 at the outer end contacts the outside of the printer body 1, and the machine shaft body 601 on the box body 201 is connected to the air extraction device provided inside the printer body 1. The machine shaft body 601 is in a hollow state, and one end of the machine shaft body 601 can be inserted into the air extraction device.

[0092] Subsequently, the paper cassette assembly 2 loaded with the printing paper 3 is accurately placed inside the printer body 1, the operation program of the printer body 1 is started, the operation program controls the driving device 704 to start, the driving device 704 drives the driving wheel 703 to rotate, the driving wheel 703 drives the driving wheel 701 to rotate through the transmission belt 702, the driving wheel 701 drives the engaging wheel 801 to rotate through the machine shaft body 601, and during the rotation of the engaging wheel 801, the flexible sleeve 805 is driven to rotate through the connecting block 8032. The printing paper 3 is conveyed inside the printer body 1 by the frictional force between the flexible sleeve 805 and the printing paper 3. Since the flexible sleeve 805 includes a rubber ring and has a certain elasticity, it can offset the tremor generated by the machine shaft body 601 during operation, so that the flexible sleeve 805 can always contact the printing paper 3, avoiding the situation that the engaging wheel 801 cannot complete the paper conveyance operation inside the printer body 1 due to the influence of the tremor.

[0093] It should be noted that: Since the engaging block 806 on the flexible sleeve 805 is engaged with the engaging hole 8033 on the connecting block 8032, during the process of the engaging wheel 801 conveying the printing paper 3, the flexible sleeve 805 will not fall off from the engaging hole 8033.

[0094] During the process of the engaging wheel 801 conveying the paper, the control system controls the adaptation part 502 to gradually extend according to the number of printed papers 3 conveyed, so as to adapt to the gradually decreasing number of printed papers 3 on the supporting part, and avoid the printed paper 3 losing contact with the flexible sleeve 805. When the extension amount of the adaptation part 502 reaches the maximum value, it indicates that all the printed papers 3 on the supporting plate 501 have been conveyed. At this time, the control system controls the adaptation part 502 to return to the initial state and waits for the staff to place the printed paper 3 into the box body 201 again.

[0095] During the process of the engaging wheel 801 conveying the paper, the control system passes current into the electromagnets distributed at the bottom of the supporting plate 501, so that the electromagnets generate a suction force that attracts the magnetic blocks at the output end of the elastic telescopic part 8042. Affected by the magnetic suction force, the elastic telescopic part 8042 gradually extends, and the rotating roller 8043 at the output end of the elastic telescopic part 8042 gradually contacts the inner side of the flexible sleeve 805. At the same time, since the fixed end of the elastic telescopic part 8042 is rotatably connected to the movable slot 8041, during the rotation of the engaging wheel 801, the fixed end of the elastic telescopic part 8042 rotates relatively under the limitation of the magnetic suction force, and the rotating roller 8043 fills the area of the flexible sleeve 805 between the two connecting blocks 8032. The elastic telescopic part 8042 applies a thrust to the flexible sleeve 805, so that the outer side of the flexible sleeve 805 can fully contact the printed paper 3, and avoid the phenomenon that the area of the flexible sleeve 805 between the two connecting blocks 8032 is sunken due to the support of the connecting blocks 8032 to the flexible sleeve 805, resulting in the phenomenon that the outer side of the flexible sleeve 805 cannot fully contact the printed paper 3.

[0096] It should be noted that: the position of the electromagnet corresponds to the position of the elastic telescopic part 8042. By controlling the magnitude of the current passed into the electromagnet, the telescopic amount of the elastic telescopic part 8042 can be controlled, so that the rotating roller 8043 fits the inner side of the flexible sleeve 805. As the adaptation part 502 gradually extends, the distance between the electromagnet and the magnetic block also gradually decreases. By controlling the magnitude of the input current, the telescopic amount of the elastic telescopic part 8042 can be controlled to avoid the excessive telescopic amount of the elastic telescopic part 8042 affecting the rotation of the engaging wheel 801.

[0097] During the rotation of the flexible sleeve 805 and the engaging wheel 801, the control system constantly detects the value of the pressure sensor set at the connection between the connecting block 8032 and the push rod 8031 and the value of the telescopic amount sensor set inside the elastic telescopic part 8042 to determine the working state of the flexible sleeve 805.

[0098] When the control system detects that the value detected by the pressure sensor on a certain engaging wheel 801 is greater than the set value, but the value of the telescopic displacement sensor is in a stable state, it indicates that during the long-term operation of the flexible sleeve 805 on the engaging wheel 801, a large amount of paper scraps adhere to its surface, resulting in an excessive pressure value on the contact surface between the flexible sleeve 805 and the printing paper 3 during the rotation of the flexible sleeve 805.

[0099] When the control system detects that a large amount of paper scraps adhere to the flexible sleeve 805 on the engaging wheel 801, the control system controls the push rod 8031 on the engaging wheel 801 to contract and simultaneously controls the start of the air extraction device located inside the printer body 1. During the contraction of the push rod 8031, the flexible sleeve 805 is synchronously contracted through the connecting block 8032 to disengage it from the contact with the printing paper 3. Since the flexible sleeve 805 includes a rubber ring sleeve which has a certain elasticity, the flexible sleeve 805 will not fall off the connecting block 8032 during the process of the connecting block 8032 driving the flexible sleeve 805 to contract.

[0100] After the flexible sleeve 805 is disengaged from the contact with the printing paper 3, the elastic telescopic part 8042 on the engaging wheel is controlled to be in a reciprocating telescopic state, that is, the elastic telescopic part 8042 drives the rotating roller 8043 to impact the inner side of the flexible sleeve 805, causing the flexible sleeve 805 to vibrate by itself, and the vibration shakes off the paper scraps adhering to itself onto the surface of the printing paper 3. The paper scraps falling on the hard surface are sucked by the air extraction holes 603 and finally enter the interior of the air extraction device.

[0101] It should be noted that: by controlling the change of the current passing through the electromagnetic block or continuously turning on and off the current passing through the electromagnetic block, the elastic telescopic part 8042 can be controlled to be in a reciprocating telescopic state.

[0102] It should be noted that: the air extraction device includes an air extraction fan and a collection bin connected to the air extraction fan, and the collection bin is used to collect the paper scraps extracted by the air extraction fan through the air outlet.

[0103] When the control system detects that the value detected by the pressure sensor on a certain engaging wheel 801 is less than the set value, but the value of the telescopic displacement sensor is greater than the set value, it indicates that during the long-term operation of the flexible sleeve 805 on the engaging wheel 801, its surface is severely worn, resulting in the thinning of the thickness of the flexible sleeve 805, which causes the flexible sleeve 805 to be unable to fully contact the printing paper 3 during the rotation process. At the same time, due to the thinning of the thickness of the flexible sleeve 805, the top thrust exerted by the elastic telescopic part 8042 on the flexible sleeve 805 becomes larger, that is, the value of the telescopic displacement sensor is greater than the set value.

[0104] When the control system detects that the thickness of the flexible sleeve 805 on the fitting wheel 801 becomes thinner, the control system controls the push rod 8031 on the fitting wheel 801 to extend. During the extension of the push rod 8031, the diameter of the flexible sleeve 805 is synchronously enlarged through the connecting block 8032. Since the flexible sleeve 805 includes a rubber ring sleeve which has certain elasticity, the flexible sleeve 805 will not fall off the connecting block 8032 during the process of the connecting block 8032 driving the flexible sleeve 805 to expand. After the diameter of the flexible sleeve 805 is enlarged, it can fully contact the printing paper 3, making the value detected by the pressure sensor in a stable state. If the value of the telescopic displacement sensor is still greater than the set value at this time, the current flowing into the electromagnet corresponding to the fitting wheel 801 is controlled to decrease, so that the top thrust exerted by the elastic telescopic part 8042 on the inner side of the flexible sleeve 805 is reduced, avoiding that the part of the flexible sleeve 805 area between the two connecting blocks 8032 protrudes too much and affecting the normal rotation of the fitting wheel 801.

[0105] When the control system detects that the value detected by the pressure sensor on a certain fitting wheel 801 is in a stable state, but the value of a certain telescopic displacement sensor is less than the set value, it indicates that the part of the flexible sleeve 805 area corresponding to the telescopic displacement sensor is elastically deformed inward due to problems such as extrusion, that is, sunken, resulting in the value detected by the telescopic displacement sensor being less than the set value.

[0106] When the control system detects that a sunken area appears in a part of the flexible sleeve 805 area on the fitting wheel 801, the position of the sunken area of the flexible sleeve 805 is determined according to the torque sensor arranged on the driving device 704. When the sunken area moves to the contact area with the printing paper 3 again, the control system determines the electromagnet corresponding to the flexible sleeve 805 according to the position of the flexible sleeve 805 and controls the current flowing into the electromagnet to increase, so that the suction force generated by the electromagnet increases synchronously, that is, the telescopic displacement of the elastic telescopic part 8042 increases, making the squeezing force of the rotating roller 8043 at the output end of the elastic telescopic part 8042 on the sunken area of the flexible sleeve 805 stronger, facilitating the sunken area to gradually recover to its original state and avoiding the phenomenon that the fitting wheel 801 vibrates during rotation due to the sunken of the flexible sleeve 805.

[0107] When the control system detects that the pressure sensors on the three fitting wheels 801 are different in size, but the values of the telescopic displacement sensors are in a stable state, it indicates that when the fitting wheels 801 convey the printing paper 3 on the supporting plate 501, the printing paper 3 is skewed. The control system determines the direction of the paper skew according to the sizes of the pressure sensors on the three fitting wheels 801. Generally speaking, the paper may skew to the side with less pressure, because the side with less pressure cannot provide enough friction force to restrict the movement of the paper.

[0108] When the control system detects that the paper is skewed, the control system controls to increase the pressure on the engaging wheel 801 on the opposite side of the skewed direction to generate a reverse correcting force to return the paper to the correct conveying path; specifically, the method is as follows: the control system controls the flexible sleeve 805 on the engaging wheel 801 on the opposite side of the skewed direction to expand, that is, controls the push rod 8031 on the engaging wheel 801 to drive the connecting block 8032 to gradually elongate, and at the same time controls the current flowing into the electromagnetic block corresponding to the engaging wheel 801 to increase, so that the suction force generated by the electromagnetic block increases synchronously, that is, the telescopic amount of the elastic telescopic rod increases, so that the pressing force of the rotating roller 8043 at the output end of the elastic telescopic rod on the concave area of the flexible sleeve 805 is enhanced, facilitating the phenomenon that the flexible sleeve 805 between the two connecting blocks 8032 is sunken after the push rod 8031 drives the connecting block 8032 to elongate.

[0109] In the present invention, by providing the pushing part 9 and the supporting part, the working state of the flexible sleeve 805 is determined by detecting the values of the pressure sensor and the telescopic amount sensor; when it is detected that a large amount of paper scraps adhere to the flexible sleeve 805 on the engaging wheel 801, the control makes the flexible sleeve 805 disengage from the printing paper 3, and makes the elastic telescopic part 8042 drive the rotating roller 8043 to impact the inner side of the flexible sleeve 805 to clean the paper scraps adhering to the flexible sleeve 805; when it is detected that the thickness of the flexible sleeve 805 on the engaging wheel 801 becomes thinner, the control expands the diameter of the flexible sleeve 805 to enable it to fully contact the printing paper 3; when it is detected that a part of the flexible sleeve 805 area on the engaging wheel 801 is sunken, the control enhances the pressing force of the elastic telescopic rod on the sunken area to facilitate the sunken area to gradually return to the original state; when the control system detects that the paper is skewed, the control system controls to increase the pressure on the engaging wheel 801 on the opposite side of the skewed direction to generate a reverse correcting force to return the paper to the correct conveying path.

[0110] The present invention also provides a method for preventing the printer shaft from trembling, and the method for preventing trembling includes the following steps:

[0111] S1. First, place the printing paper 3 on the supporting plate 501 inside the box body 201. During this process, the adapting part 502 drives the supporting plate 501 to move downward to ensure that the flexible sleeve 805 on the engaging wheel 801 is in close contact with the printing paper 3 to prepare for the subsequent conveying process;

[0112] S2. Subsequently, accurately place the paper box assembly 2 loaded with the printing paper 3 inside the printer body 1, start the operation program of the printer body 1, and the operation program controls the driving device 704 to start. The driving device 704 realizes the stable and continuous conveying of the printing paper 3 through the anti-trembling component 8 integrated on the machine shaft body 601;

[0113] S3. During the conveyance of the printing paper 3, by detecting the pressure value of the contact surface between the flexible sleeve 805 and the printing paper 3 and combining with the real-time telescopic amount of the elastic telescopic portion 8042, the working state of the flexible sleeve 805 is evaluated. Based on the working state, the corresponding anti-vibration component 8 is adjusted to implement necessary structural transformation to ensure the stability of the printing paper 3 during the conveyance process.

[0114] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0115] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printer shaft anti-vibration device, characterized in that: The printer comprises a printer body, a paper box assembly arranged in an array, a carrying assembly arranged inside the paper box assembly, a printing paper placed above the carrying assembly, a printer shaft assembly arranged above the carrying assembly, and an anti-vibration assembly arranged in an array on the outside of the printer shaft assembly; The printer shaft assembly includes a shaft body (601) rotatably connected to a box body (201), an array of wedge blocks (602) are provided on the outer side of the shaft body (601), and the shaft body (601) is connected to an engaging groove (802) on an engaging wheel (801) through the wedge blocks (602); a driving assembly (7) is provided at one end of the shaft body (601), and an air extraction assembly is provided at the other end of the shaft body (601); the air extraction assembly includes an air extraction hole (603) provided on the shaft body (601), and the air extraction hole (603) is connected to an air extraction device arranged inside the printer body (1); The anti-vibration component (8) includes a fitting wheel (801), a fitting groove (802) is provided in the middle of the fitting wheel (801), a pusher (803) distributed in an array is provided on the outer side of the fitting wheel (801), and a support member (804) is provided between two adjacent pushers (803); the pusher (803) includes a push rod (8031), a fixed end of the push rod (8031) is provided inside the fitting wheel (801), a connecting block (8032) is provided at the output end of the push rod (8031), a pressure sensor is provided at the connection between the connecting block and the push rod, and the pressure sensor is used to detect the pressure value of the contact surface between the flexible sleeve and the printing paper, and the connecting block (8032) is provided with a fitting hole (8033) distributed in an array; a flexible sleeve (805) is provided on the outer side of the fitting wheel (801), and the flexible sleeve (805) is provided with a connecting block (8032). The inner side is provided with an array of interlocking blocks (806), which are connected to the interlocking holes (8033); the support member (804) includes a movable groove (8041) provided inside the interlocking wheel (801), the cross section of the movable groove (8041) is fan-shaped, and an elastic telescopic portion (8042) is provided inside the movable groove (8041); the fixed end of the elastic telescopic portion (8042) is rotatably connected to the bottom of the movable groove (8041) through a hinge, the output end of the elastic telescopic portion (8042) is provided with a rotating roller (8043), the rotating roller (8043) is rotatably connected to the output end of the elastic telescopic portion (8042), a magnetic block is embedded inside the output end of the elastic telescopic portion, a telescopic amount sensor is provided inside the elastic telescopic portion, and the rotating roller (8043) contacts the inner side of the flexible sleeve (805); The interlocking wheel (801) located in the middle of the machine shaft body (601) is fixedly connected to the machine shaft body (601) through a locking member, and the interlocking wheels (801) located at both ends of the machine shaft body (601) are slidably connected to the machine shaft body (601); an array-distributed pushing portion (9) is provided between two adjacent interlocking wheels (801), and the pushing portion (9) is distributed in a ring array around the machine shaft body (601).

2. The anti-vibration device for a printer shaft according to claim 1, characterized in that: The paper box assembly (2) comprises a box body (201), both sides of the box body (201) are slidably connected to the printer body (1) by means of slide rails (203), and a separation pad (10) is elastically connected to one side of the box body (201) close to the printer shaft assembly (6); a baffle (202) is provided at the end of the box body (201), and the baffle (202) is used to limit the box body (201) when it slides in the printer body (1); a placement groove (204) is provided inside the box body (201), and the placement groove (204) comprises a straight portion (2041) and a wedge-shaped portion (2042); a stopper assembly (4) is provided on the straight portion (2041), and a bearing assembly (5) is located inside the wedge-shaped portion (2042).

3. The anti-vibration device for a printer shaft according to claim 2, characterized in that: The bearing assembly (5) includes a supporting plate (501), the top of the supporting plate (501) is provided with staggered air grooves (503), one end of the supporting plate (501) is rotatably connected to the box body (201) through a rotating member, and the rotating member is arranged at the junction of the straight portion (2041) and the wedge-shaped portion (2042); the end of the supporting plate (501) away from the rotating member is provided with an adapting portion (502), one end of the adapting portion (502) is connected to the bottom of the supporting plate (501), and the other end of the adapting portion (502) is connected to the bottom of the wedge-shaped portion (2042).

4. The anti-vibration device for a printer shaft according to claim 3, characterized in that: The driving assembly (7) includes a transmission wheel (701), which is arranged at the end of the machine shaft body (601). A transmission belt (702) is provided on the outer side of the transmission wheel (701). A driving wheel (703) is provided at the other end of the transmission belt (702). The driving wheel (703) is connected to the transmission belt (702) through the transmission belt (702). A driving device (704) is provided at the end of the driving wheel (703).

5. The anti-vibration device for a printer shaft according to claim 4, characterized in that: The stop assembly (4) comprises a slide groove (401) provided on the straight portion (2041), the slide groove (401) and the supporting plate (501) being in a mutually perpendicular state, a sliding block (402) being provided inside the slide groove (401), and the sliding block (402) being in position-limiting sliding connection with the slide groove (401).

6. A method for preventing vibration of a printer shaft, the method being implemented using the anti-vibration device for a printer shaft according to claim 5, characterized in that: The anti-shake method includes the following steps: S1. Place the printing paper (3) on the supporting plate (501) inside the box body (201). During this process, the adapting portion (502) drives the supporting plate (501) to move downward, ensuring that the flexible sleeve (805) on the engaging wheel (801) is in close contact with the printing paper (3), preparing for the subsequent conveying process; S2, accurately placing the paper box assembly (2) loaded with printing paper (3) inside the printer body (1), starting the operating program of the printer body (1), the operating program controls the driving device (704) to start, and the driving device (704) realizes the smooth and continuous conveyance of the printing paper (3) through the anti-vibration component (8) integrated on the machine shaft body (601); S3. During the conveying process of the printing paper (3), the working state of the flexible sleeve (805) is evaluated by detecting the pressure value of the contact surface between the flexible sleeve (805) and the printing paper (3), and combining it with the real-time expansion and contraction amount of the elastic expansion and contraction portion (8042). Based on the working state, the corresponding anti-vibration component (8) is adjusted and necessary structural changes are implemented to ensure the stability of the conveying process of the printing paper (3).

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