Stamping device suitable for personnel archive numbering and stamping

Abstract

The invention relates to the technical field of automatic stamping, in particular to a stamping device suitable for personnel archive numbering and stamping, which comprises a fixed box, a document storage box arranged in the fixed box, a driving device arranged at the front end of the document storage box and a paper feeding device used for conveying documents. According to the stamping device suitable for the personnel archive number stamp, after a driving motor is started, a limiting sliding block can move along the interior of a limiting sliding groove, a fixed stamp body can make contact with inkpad in an inkpad box before stamping each time, and the situation that after the device works on a large scale for a long time, the color of a stamp on a document becomes light, and the sealing effect is poor is reduced. Manual color complementing is needed, so that the working continuity of the whole equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automatic stamping, in particular to a stamping device suitable for stamping personnel file numbers. Background Art

[0002] The stamping of personnel file number is the core link in file management. It is related to the classification, arrangement and accurate compilation of file numbers. In the stamping process, it is necessary to ensure that the seal is clear, complete, and accurately stamped on the designated position of the file. In order to improve the efficiency and accuracy of stamping, it is particularly necessary to use an automatic stamping device.

[0003] The patent with application number CN202010090032.0 discloses a stamping device suitable for personnel file number stamps, including an automatic stamping device, including a transfer fixed bracket and a receiving fixed bracket, both of which are driven by a micro worm gear elevator to make linear motion, and an electric motor. Conveying roller groups controlled by micro-cylinders for lifting and lowering are arranged on both sides of the top of the transfer fixed bracket. This solves the labor generated by existing manual stamping and the inability to guarantee clarity and accuracy of manual stamping. At the same time, it solves the problem of downtime caused by wrinkles of the stamped certificate during transportation during the mechanical stamping process.

[0004] However, the existing stamping device may not have the function of automatically making the seal contact with the ink pad before each stamping, resulting in the color of the seal becoming lighter after large-scale and long-term work. At this time, manual color replenishment is required regularly to ensure the clarity of the seal, but this will affect the continuity of the work. In addition, the existing stamping device may lack a linkage mechanism with the paper feeding device. After stamping is completed, it may be necessary to manually remove the document from the device, or an additional driving device may be required to feed the document out, which not only increases the complexity of the operation, but also increases the cost of the equipment.

[0005] In view of this, we propose a stamping device suitable for stamping personnel file numbers. Summary of the invention

[0006] The object of the present invention is to provide a stamping device suitable for personnel file number stamps to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A stamping device suitable for stamping personnel file numbers, comprising a fixed box, a document storage box arranged inside the fixed box, a driving device arranged at the front end of the document storage box, and a paper feeding device arranged for conveying documents; The fixed box comprises a fixed box body, a front storage body arranged at the front end of the fixed box body, and an ink pad box arranged on the top surface of the fixed box body; The document storage box comprises a fixed box body, an upper lifting plate for placing the upper opening of the fixed box body, and a first pressure spring that pushes the upper lifting plate upward by its own elastic force; The driving device includes a driving motor, a reciprocating screw arranged on the output shaft of the driving motor, a movable tooth plate that moves back and forth as the reciprocating screw rotates, a limit slider whose position changes as the movable tooth plate moves, an outer convex rod arranged on the outer side wall of the limit slider, and a pressing portion arranged at the end of the outer convex rod; The pressing part includes a pressing block, a mounting plate moving with the pressing block, a second pressure spring pushing the mounting plate downward by its own elastic force, and a fixed seal body clamped inside the mounting plate; The paper feeding device comprises outer ring teeth, a ratchet wheel which rotates as the outer ring teeth rotate clockwise, a rotating shaft which rotates as the ratchet wheel rotates, and a plurality of paper feeding rollers which are sleeved on the outer side wall of the rotating shaft.

[0008] In the technical solution of the present invention, a placement groove for providing a placement area for the document storage box is opened on the top surface of the fixed box body, a material guide groove connected to the placement groove is opened on the right side wall of the fixed box body, and the ink box is clamped and fixed on the top surface of the fixed box body.

[0009] In the technical solution of the present invention, a limiting sliding groove with an inverted concave cross-section is provided on the rear side wall of the front warehouse body, warehouse wall through grooves that penetrate inside and outside are provided on the outer walls at the left and right ends of the front warehouse body, and an external protrusion is welded on the right side wall of the front warehouse body.

[0010] In the technical solution of the present invention, the fixed box body is slidably connected to the inside of the placement groove, a box end opening is provided at the top of the right side wall of the fixed box body, the upper lifting plate is slidably connected to the open inside of the fixed box body, and an inclination angle with the left lower and the right higher is provided at the top surface of the upper lifting plate near the left end.

[0011] In the technical solution of the present invention, one end of the first pressure spring is welded to the inner bottom surface of the opening of the fixed box body, and the other end is welded to the bottom surface of the upper lifting plate. A first telescopic rod is provided inside the first pressure spring. One end of the first telescopic rod is welded to the inner bottom surface of the opening of the fixed box body, and the other end is welded to the bottom surface of the upper lifting plate. Lower pressure rollers are rotatably connected to both sides of the outer protrusions on the top surface of the fixed box body.

[0012] In the technical solution of the present invention, the driving motor is fixedly connected to the top surface of the outer cam by screws, the left and right ends of the reciprocating screw are rotatably connected to the outer side walls of the left and right ends of the front bin body, the movable tooth plate is slidably connected to the interior of the front bin body and is threadedly connected to the reciprocating screw, and a guide groove is provided on the outer side wall of the movable tooth plate.

[0013] In the technical solution of the present invention, the limit slider is slidably connected to the inside of the limit slide groove, the outer protruding rod is rotationally connected to the inside of the limit slider, and the end of the outer protruding rod extends to the front end of the guide groove.

[0014] In the technical solution of the present invention, the lower pressure block is clamped and fixed at the end position of the outer protruding rod, one end of the second pressure spring is fixed to the bottom surface of the lower pressure block, and the other end is fixed to the top surface of the mounting plate, a second telescopic rod is clamped at the corner position of the top surface of the mounting plate, the top end of the second telescopic rod is clamped on the bottom surface of the lower pressure block, and the fixed seal body is clamped on the bottom surface of the mounting plate.

[0015] In the technical solution of the present invention, the outer ring gear is rotatably connected to the inner wall of the front warehouse body through an outer convex round rod, a pawl is rotatably connected in the groove of the inner ring wall of the outer ring gear, a center rod is clamped inside the ratchet, and the end of the center rod is rotatably connected to the inner wall of the front warehouse body.

[0016] In the technical solution of the present invention, a pulley is fixedly connected to the outer wall of the center rod through a bayonet pin, the front and rear ends of the rotating shaft are respectively rotatably connected to the outer wall of the front bin body and the convex plate on the top surface of the fixed box body, the paper feed roller is clamped on the outer wall of the rotating shaft, and a transmission belt is sleeved between the pulley and the rotating shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This stamping device, which is suitable for stamping personnel file numbers, can move the limit slider along the inside of the limit slide groove after the driving motor is started, so that the fixed seal body can contact the ink in the ink box before each stamping, thereby reducing the process of the color of the seal on the document becoming lighter after the device works in large quantities for a long time, and the need for manual color filling, thereby improving the continuity of the overall equipment during operation.

[0018] 2. This stamping device is suitable for stamping personnel file numbers. Every time the movable tooth plate moves to the left, the stamped document will be sent out of the fixed box through the paper feeding device, which improves the automation of the stamping device and reduces the investment in additional driving equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention.

[0021] Figure 3 It is a structural schematic diagram of the fixed box in the present invention.

[0022] Figure 4It is a schematic cross-sectional view of the structure of the document storage box in the present invention.

[0023] Figure 5 This is one of the structural schematic diagrams of the driving device in the present invention.

[0024] Figure 6 This is the second structural schematic diagram of the driving device in the present invention.

[0025] Figure 7 It is a structural schematic diagram of the lower pressing part in the present invention.

[0026] Figure 8 It is a schematic diagram of the structure of the paper feeding device in the present invention.

[0027] Fig. 9 It is a schematic diagram of the structural disassembly of the paper feeding device in the present invention.

[0028] Description of reference numerals: 100, fixed box; 110, fixed box body; 111, placement slot; 112, material guide slot; 120, front bin body; 121, limit slide slot; 122, bin wall slot; 130, ink pad box; 140, external convex frame; 200, document storage box; 210, fixed box body; 211, open end of box; 220, upper lifting plate; 230, first telescopic rod; 240, first pressure spring; 250, lower pressure roller; 300, driving device; 310, driving motor; 320, reciprocating screw; 330, moving tooth plate; 331, guide groove; 340, limit slider; 350, outer convex rod; 360, pressing part; 361, pressing block; 362, mounting plate; 363, second telescopic rod; 364, second pressure spring; 365, fixing the seal body; 400, paper feeding device; 410, outer ring teeth; 420, pawl; 430, ratchet; 440, center rod; 450, pulley; 460, rotating shaft; 470, paper feeding roller; 480, transmission belt. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 9 As shown, this embodiment provides a technical solution: A stamping device suitable for stamping personnel file numbers, comprising a fixed box 100, a document storage box 200 arranged inside the fixed box 100, a driving device 300 arranged at the front end of the document storage box 200, and a paper feeding device 400 arranged for conveying documents; In the present invention, the fixed box 100 includes a fixed box body 110, a front bin body 120 disposed at the front end of the fixed box body 110, and an ink pad box 130 disposed on the top surface of the fixed box body 110; Specifically, a placement slot 111 is provided on the top surface of the fixed box 110 to provide a placement area for the document storage box 200, a material guide slot 112 connected to the placement slot 111 is provided on the right side wall of the fixed box 110, and the ink pad box 130 is snap-fitted and fixed on the top surface of the fixed box 110.

[0031] Furthermore, a limiting slide groove 121 with an inverted concave cross-section is provided on the rear side wall of the front bin body 120, and bin wall through grooves 122 that penetrate inside and outside are provided on the outer side walls at both ends of the front bin body 120, and an external protrusion 140 is welded on the right side wall of the front bin body 120.

[0032] Furthermore, the fixed box body 110 is used to ensure the strength of the overall structure of the fixed box 100, the placement groove 111 is used to place the document storage box 200, the material guide groove 112 is used to facilitate the delivery of documents out of the interior of the fixed box body 110, the front bin body 120 is used to provide a placement area for the structure in the driving device 300, the limiting slide groove 121 and the bin wall groove 122 are both used to limit the movement range of the internal structure of the driving device 300, and the external protrusion 140 is used to provide a fixed platform for the internal structure of the driving device 300.

[0033] In this embodiment, Figure 4 As shown, the document storage box 200 includes a fixed box body 210, an upper lifting plate 220 for placing the open top of the fixed box body 210, and a first pressure spring 240 that pushes the upper lifting plate 220 to move upward by its own elastic force; Specifically, the fixed box body 210 is slidably connected to the inside of the placement groove 111, and a box end opening 211 is provided at the top of the right side wall of the fixed box body 210. The lifting plate 220 is slidably connected to the open inside of the fixed box body 210, and a left-lower-and-right-higher inclination is provided at the top surface of the lifting plate 220 near the left end.

[0034] Furthermore, one end of the first pressure spring 240 is welded to the open inner bottom surface of the fixed box body 210, and the other end is welded to the bottom surface of the upper lifting plate 220. A first telescopic rod 230 is provided inside the first pressure spring 240. One end of the first telescopic rod 230 is welded to the open inner bottom surface of the fixed box body 210, and the other end is welded to the bottom surface of the upper lifting plate 220. Lower pressure rollers 250 are rotatably connected to both sides of the outer protrusions on the top surface of the fixed box body 210.

[0035] Furthermore, the internal opening of the fixed box body 210 is used to provide a sliding area for the lifting plate 220 and to provide a placement area for documents. The box end opening 211 is used to facilitate the feeding of the top paper into the top of the guide groove 112. The first telescopic rod 230 is used to limit the telescopic range of the first pressure spring 240. The first pressure spring 240 pushes the lifting plate 220 upward through its own elastic force to ensure that the paper on the top surface of the document can fully contact the lower pressure roller 250.

[0036] In this embodiment, Figure 5-Figure 6 As shown, the driving device 300 includes a driving motor 310, a reciprocating screw 320 disposed on the output shaft of the driving motor 310, a moving tooth plate 330 that reciprocates left and right as the reciprocating screw 320 rotates, a limiting slider 340 whose position changes as the moving tooth plate 330 moves, an outer convex rod 350 disposed on the outer side wall of the limiting slider 340, and a pressing portion 360 disposed at the end of the outer convex rod 350; Specifically, the driving motor 310 is fixedly connected to the top surface of the outer cam 140 by screws, the left and right ends of the reciprocating screw rod 320 are rotatably connected to the outer side walls of the left and right ends of the front bin body 120, the movable gear plate 330 is slidably connected to the interior of the front bin body 120 and is threadedly connected to the reciprocating screw rod 320, and a guide groove 331 is opened on the outer side wall of the movable gear plate 330.

[0037] Furthermore, the limiting slider 340 is slidably connected to the inside of the limiting slide groove 121 , and the outer protruding rod 350 is rotationally connected to the inside of the limiting slider 340 , and the end of the outer protruding rod 350 extends to the front end of the guide groove 331 .

[0038] Furthermore, the driving motor 310 in the driving device 300 drives the reciprocating screw 320 to rotate, thereby causing the movable tooth plate 330 to reciprocate left and right, so that the outer protruding rod 350 moves along the trajectory of the guide groove 331, and the limiting slider 340 moves from one end of the limiting slide groove 121 to the other end.

[0039] In this embodiment, Figure 7 As shown, the pressing portion 360 includes a pressing block 361, a mounting plate 362 that moves with the pressing block 361, a second pressure spring 364 that pushes the mounting plate 362 downward by its own elastic force, and a fixed seal body 365 that is clamped inside the mounting plate 362; Specifically, the lower pressure block 361 is clamped and fixed at the end position of the outer protruding rod 350, one end of the second pressure spring 364 is fixed to the bottom surface of the lower pressure block 361, and the other end is fixed to the top surface of the mounting plate 362, and the second telescopic rod 363 is clamped at the corner position of the top surface of the mounting plate 362, and the top end of the second telescopic rod 363 is clamped on the bottom surface of the lower pressure block 361, and the fixed seal body 365 is clamped on the bottom surface of the mounting plate 362.

[0040] Furthermore, after the pressing block 361 moves downward, it is used to drive the mounting plate 362 and the fixed seal body 365 to move downward together. After the fixed seal body 365 comes into contact with the document, the pressing block 361 continues to move downward, and the elastic force of the second pressure spring 364 is converted into a downward force on the fixed seal body 365 to ensure that the color of the seal is sufficient. The second telescopic rod 363 is used to limit the telescopic range of the second pressure spring 364.

[0041] In this embodiment, Figure 8-Figure 9 As shown, the paper feeding device 400 includes an outer ring gear 410, a ratchet 430 that rotates as the outer ring gear 410 rotates clockwise, a rotating shaft 460 that rotates as the ratchet 430 rotates, and a plurality of paper feeding rollers 470 sleeved on the outer side wall of the rotating shaft 460; Specifically, the outer ring tooth 410 is rotatably connected to the inner warehouse wall of the front warehouse body 120 through an outer convex round rod, and a pawl 420 is rotatably connected in the groove of the inner ring wall of the outer ring tooth 410. The center rod 440 is clamped inside the ratchet 430, and the end of the center rod 440 is rotatably connected to the inner warehouse wall of the front warehouse body 120.

[0042] Furthermore, a pulley 450 is fixedly connected to the outer wall of the center rod 440 through a pin, and the front and rear ends of the rotating shaft 460 are respectively rotatably connected to the outer wall of the front bin body 120 and the convex plate on the top surface of the fixed box body 110, the paper feed roller 470 is clamped on the outer wall of the rotating shaft 460, and a transmission belt 480 is sleeved between the pulley 450 and the rotating shaft 460.

[0043] Furthermore, when the movable tooth plate 330 moves to the right, it comes into conflict with the outer ring tooth 410, thereby driving the outer ring tooth 410 to rotate, and then cooperating with the internal plurality of ratchets 420 to drive the ratchet 430 to rotate together, so that the center rod 440 rotates accordingly, and the power of the rotation of the center rod 440 is transmitted through the transmission belt 480, thereby driving the rotating shaft 460 to rotate, and then causing the plurality of paper feeding rollers 470 to rotate, so that the document with the seal on the top is sent out from the interior of the fixed box body 210 through the box end opening 211.

[0044] Finally, it should be noted that the drive motor 310 involved in the present invention is a universal standard part or a part known to technical personnel in this field. Its structure and principle can be known to technical personnel through technical manuals or through conventional experimental methods. In the idle space of this device, the drive motor 310 is connected to the external power supply through a wire. The specific connection method should refer to the working principle of the present invention. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection methods are all well-known technologies in the field.

[0045] When the stamping device for stamping personnel file numbers of the present invention is used, first, the staff places the documents that need to be stamped in batches on the top surface of the upper lifting plate 220 in the document storage box 200, and presses the lower pressing roller 250 against the top surface of the documents; Then, the driving motor 310 in the driving device 300 is started to drive the reciprocating screw rod 320 to rotate, thereby causing the movable tooth plate 330 to reciprocate left and right, so that the outer protruding rod 350 moves along the track of the guide groove 331, and the limiting slider 340 moves from one end of the limiting slide groove 121 to the other end; At this time, the bottom surface of the fixed seal body 365 in the pressing portion 360 first contacts the top surface of the ink box 130, and then contacts the topmost document in the fixed box body 210; Next, when the movable tooth plate 330 moves to the right, it comes into conflict with the outer ring gear 410, driving the outer ring gear 410 to rotate, and then cooperates with the internal ratchet pawls 420 to drive the ratchet wheel 430 to rotate together, so that the center rod 440 rotates accordingly; The driving force of the central rod 440 is transmitted through the transmission belt 480, which drives the rotating shaft 460 to rotate, and then causes the plurality of paper feeding rollers 470 to rotate, so that the topmost stamped document is sent out of the interior of the fixed box body 210 through the box end opening 211.

[0046] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. A stamping device suitable for stamping personnel file numbers, comprising a fixed box (100), a document storage box (200) arranged inside the fixed box (100), a driving device (300) arranged at the front end of the document storage box (200), and a paper feeding device (400) arranged for conveying documents; Features: The fixed box (100) comprises a fixed box body (110), a front bin body (120) arranged at the front end of the fixed box body (110), and an ink pad box (130) arranged on the top surface of the fixed box body (110); The document storage box (200) comprises a fixed box body (210), an upper lifting plate (220) for placing the open top of the fixed box body (210), and a first pressure spring (240) for pushing the upper lifting plate (220) upward by its own elastic force; The driving device (300) comprises a driving motor (310), a reciprocating screw (320) arranged on the output shaft of the driving motor (310), a movable tooth plate (330) that reciprocates left and right as the reciprocating screw (320) rotates, a limiting slider (340) whose position changes as the movable tooth plate (330) moves, an outer convex rod (350) arranged on the outer side wall of the limiting slider (340), and a pressing portion (360) arranged at the end of the outer convex rod (350); The pressing portion (360) comprises a pressing block (361), a mounting plate (362) that moves together with the pressing block (361), a second pressure spring (364) that pushes the mounting plate (362) to move downward by its own elastic force, and a fixed seal body (365) that is clamped inside the mounting plate (362); The paper feeding device (400) comprises an outer ring tooth (410), a ratchet wheel (430) that rotates as the outer ring tooth (410) rotates clockwise, a rotating shaft (460) that rotates as the ratchet wheel (430) rotates, and a plurality of paper feeding rollers (470) sleeved on the outer side wall of the rotating shaft (460).

2. The stamping device for stamping personnel file numbers according to claim 1, characterized in that: A placement slot (111) for providing a placement area for the document storage box (200) is provided on the top surface of the fixed box (110), a material guide slot (112) connected to the placement slot (111) is provided on the right side wall of the fixed box (110), and the ink pad box (130) is snap-fitted and fixed to the top surface of the fixed box (110).

3. The stamping device for stamping personnel file numbers according to claim 1, characterized in that: The rear side wall of the front bin body (120) is provided with a limiting sliding groove (121) having a longitudinal cross section in the shape of an inverted concave character. The outer side walls at both ends of the front bin body (120) are provided with bin wall through grooves (122) that penetrate inside and outside. An outer convex frame (140) is welded to the right side wall of the front bin body (120).

4. The stamping device for stamping personnel file numbers according to claim 2, characterized in that: The fixed box body (210) is slidably connected to the interior of the placement groove (111), and a box end opening (211) is provided at the top of the right side wall of the fixed box body (210). The upper lifting plate (220) is slidably connected to the interior of the opening of the fixed box body (210), and a left-lower-right-higher inclination is provided on the top surface of the upper lifting plate (220) near the left end.

5. The stamping device for stamping personnel file numbers according to claim 1, characterized in that: One end of the first pressure spring (240) is welded to the open inner bottom surface of the fixed box body (210), and the other end is welded to the bottom surface of the upper lifting plate (220). A first telescopic rod (230) is provided inside the first pressure spring (240). One end of the first telescopic rod (230) is welded to the open inner bottom surface of the fixed box body (210), and the other end is welded to the bottom surface of the upper lifting plate (220). Lower pressure rollers (250) are rotatably connected to both sides of the outer protrusion on the top surface of the fixed box body (210).

6. The stamping device for stamping personnel file numbers according to claim 3, characterized in that: The driving motor (310) is fixedly connected to the top surface of the outer cam (140) by means of screws; the left and right ends of the reciprocating screw rod (320) are rotatably connected to the left and right outer side walls of the front bin body (120); the movable tooth plate (330) is slidably connected to the interior of the front bin body (120) and is threadedly connected to the reciprocating screw rod (320); and a guide groove (331) is provided on the outer side wall of the movable tooth plate (330).

7. The stamping device for stamping personnel file numbers according to claim 6, characterized in that: The limiting slide block (340) is slidably connected to the inside of the limiting slide groove (121), the outer convex rod (350) is rotatably connected to the inside of the limiting slide block (340), and the end of the outer convex rod (350) extends to the front end of the guide groove (331).

8. The stamping device for stamping personnel file numbers according to claim 1, characterized in that: The lower pressing block (361) is clamped and fixed at the end position of the outer protruding rod (350), one end of the second pressure spring (364) is fixed to the bottom surface of the lower pressing block (361), and the other end is fixed to the top surface of the mounting plate (362), a second telescopic rod (363) is clamped at the corner position of the top surface of the mounting plate (362), the top end of the second telescopic rod (363) is clamped on the bottom surface of the lower pressing block (361), and the fixed seal body (365) is clamped on the bottom surface of the mounting plate (362).

9. The stamping device for stamping personnel file numbers according to claim 1, characterized in that: The outer ring gear (410) is rotatably connected to the inner wall of the front bin body (120) via an outer convex round rod, a ratchet (420) is rotatably connected in a groove of the inner wall of the outer ring gear (410), a center rod (440) is clamped inside the ratchet (430), and an end of the center rod (440) is rotatably connected to the inner wall of the front bin body (120).

10. The stamping device for stamping personnel file numbers according to claim 9, characterized in that: A pulley (450) is fixedly connected to the outer wall of the central rod (440) via a bayonet pin; the front and rear ends of the rotating shaft (460) are respectively rotatably connected to the outer wall of the front bin body (120) and the convex plate on the top surface of the fixed box body (110); the paper feeding roller (470) is clamped on the outer wall of the rotating shaft (460); and a transmission belt (480) is sleeved between the pulley (450) and the rotating shaft (460).

Images