Stamping device

Abstract

The utility model belongs to the technical field of stamping control equipment, and particularly relates to a stamping device. A stamping device comprises a fixing plate, and a rotation driving mechanism and a downward pressing driving mechanism are arranged on the fixing plate. An output rotating shaft of the rotation driving mechanism is vertically arranged and fixedly connected with a rotating disc, a plurality of avoiding grooves are formed in the rotating disc, two sliding rods are vertically and fixedly connected to the positions, on the two sides of each avoiding groove, of the rotating disc respectively, the lower ends of the sliding rods are fixedly connected with limiting discs, and lower pressing blocks are arranged on the sliding rods in a sliding and penetrating mode. A clamping structure is arranged on the lower pressing block, and a compression spring is arranged on the sliding rod between the lower pressing block and the limiting disc in a sleeving manner; a downward pressing piece is arranged at the output end of the downward pressing driving mechanism, and the downward pressing driving mechanism can drive the downward pressing piece to stretch into the receding groove so as to press the seal clamped to the downward pressing block downwards. The stamping machine has the advantages of being high in integration level, high in stamping efficiency and high in stamping stability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of seal control equipment, especially relates to a seal device. BACKGROUND

[0002] In order to improve the intelligentization, automation and remote management level of seal management and use, intelligent seal control instrument is more and more widely used due to its advantages of safety, high efficiency and easy management.The core component of the existing seal control instrument is its seal device, and the function realization of the seal device determines the speed, safety, reliability and efficiency of the seal control instrument operation.

[0003] The seal device of the seal control instrument in the prior art is mostly of split structure, that is, it is composed of two parts, for example, a Chinese invention patent with application number 201110280871.X discloses a multi-seal execution mechanism and a seal control machine with the multi-seal execution mechanism, which places multiple seals in the seal control machine and selects the required seal through the seal execution unit according to the use requirement, and then drives the seal to press down, thereby completing automatic sealing.In addition, a Chinese invention patent with application number 201610731676.7 discloses a seal control instrument, which clamps the seals in multiple seal sleeves and places them on a seal storage rack, and when the seal is needed, it slides to the required seal sleeve through the horizontal and vertical sliding mechanisms, and fixes the seal sleeve through the clamping mechanism such as the buckle structure, magnetic attraction structure, etc., and then moves above the paper to press down and seal.

[0004] Since the seal needs to be moved to the top of the seal or seal sleeve through the grabbing mechanism or clamping mechanism during use, and then the seal is grabbed or the seal sleeve is fixed, and then it is moved to the top of the paper to be sealed and pressed down to complete automatic sealing, the seal device of the above two seal control instruments has the following technical problems: first, the seal grabbing or seal sleeve clamping needs to be moved over a long distance, so the seal grabbing and fixing efficiency is low, which further leads to low overall sealing efficiency; second, the stability is low during the seal movement, the seal is easy to shake, tilt or even fall, which leads to invalid sealing, UTILITARIAN CONTENT

[0005] To solve the technical problems in the prior art, the application provides a seal device with high integration, high sealing efficiency and high sealing stability.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a seal device, including the fixed plate of horizontal arrangement, is provided with rotation drive mechanism and press down drive mechanism on the fixed plate, the output rotary shaft of rotation drive mechanism is vertically arranged and is fixedly connected with the horizontal arrangement of rotary disc, is provided with a plurality of avoidance slot on the rotary disc, is vertically fixedly connected with two slide rods on the rotary disc on each avoidance slot both sides, is fixedly connected with the limit disc on the lower end of slide rod, is slidably provided with the presser foot on each slide rod both sides, is provided with the clamping structure on the presser foot, is provided with the compression spring on the slide rod between presser foot and limit disc, is provided with the presser foot on the output end of press down drive mechanism, press down drive mechanism can drive presser foot to extend into the avoidance slot to press down the seal which is clamped on the presser foot.

[0008] Preferably, the rotation drive mechanism includes a rotary motor fixedly connected to the fixed plate, a fixed cylinder vertically fixedly connected to the fixed plate, and an output rotary shaft rotatably connected in the fixed cylinder, and the rotary motor drives the output rotary shaft to rotate through a synchronous belt assembly.

[0009] Preferably, a rotary bearing is fixedly embedded in the fixed cylinder, and the output rotary shaft is fixedly threaded through the inner ring of the rotary bearing.

[0010] Preferably, the press down drive mechanism includes a press down motor vertically fixedly connected to the fixed plate, and a guide rod vertically fixedly connected to the fixed plate, and the presser foot is slidably threaded through the guide rod and is threadedly connected to a lead screw fixedly connected to the output shaft of the press down motor.

[0011] Preferably, the clamping structure includes a clamping groove opened outside the presser foot at the avoidance slot, and a clamping plate horizontally fixedly connected to the groove wall of the clamping groove.

[0012] Preferably, an upper light shield and a lower light shield are horizontally fixedly connected to the output rotary shaft, an upper notch is opened in the upper light shield, four lower notches are uniformly opened in the lower light shield, an upper slot-type photoelectric sensor and a lower slot-type photoelectric sensor are fixedly connected to the fixed cylinder, and the upper light shield and the lower light shield are respectively threaded through the sensing slots of the corresponding upper slot-type photoelectric sensor and lower slot-type photoelectric sensor.

[0013] Preferably, the synchronous belt assembly includes a main synchronous wheel fixedly connected to the output shaft of the rotary motor, a slave synchronous wheel fixedly connected to the upper end of the output rotary shaft, and a synchronous belt engaged and connected to the main synchronous wheel and the slave synchronous wheel.

[0014] Preferably, a waist-shaped avoiding through hole is formed on the fixing plate, the output shaft of the rotary motor is arranged in the avoiding through hole and extends to the fixing plate to be fixedly connected with the main synchronous wheel, a stop block is fixedly connected with the fixing plate on the side away from the slave synchronous wheel, waist-shaped adjusting holes are formed on the fixing plate on the two sides of the avoiding through hole along the length direction of the fixing plate, an adjusting plate is arranged on the upper end surface of the fixing plate, an adjusting bolt is threadedly connected in the adjusting plate and can abut against the stop block, and a fastening bolt is arranged in the adjusting plate and the adjusting hole in sequence and is fixedly connected with the rotary motor.

[0015] Preferably, a guide groove is formed on the fixing plate on the side away from the stop block, and a guide block is fixedly connected with the lower end surface of the adjusting plate and can be slidably arranged in the guide groove.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] The utility model discloses a rotating disc, slide rod, limit disc, compression spring and the lower pressure piece of the slide rod are set, and when the lower pressure piece is stressed, can move downward and can be reset automatically under the elastic force of compression spring, thereby when automatic stamping, the stamp or the stamp fixture with fixed stamp can be clamped in the lower pressure piece, and the stamp can move with the up-down movement of the lower pressure piece, thereby realizing stamping and resetting, and the utility model discloses a plurality of stamps can be fixed, and through setting rotary drive mechanism, the required stamp can be rotated to the stamping position by driving the rotating disc, and through the lower pressure drive mechanism, the lower pressure piece is driven to move downward, thereby driving the stamp to move downward, to complete the automatic stamping action. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the embodiment of the utility model.

[0019] Figure 2 It is the side view structure schematic diagram of the embodiment of the utility model.

[0020] Figure 3 It is the rotating disc, lower pressure piece, slide rod, compression spring first visual angle connection structure schematic diagram of the embodiment of the utility model.

[0021] Figure 4 It is the rotating disc, lower pressure piece, slide rod, compression spring second visual angle connection structure schematic diagram of the embodiment of the utility model.

[0022] Figure 5 It is the connection structure schematic view of the rotary drive mechanism and the downward pressing drive mechanism of the utility model embodiment.

[0023] Figure 6 It is the connection structure schematic view of the output rotating shaft, the slave synchronous wheel, the rotating bearing, the upper light shielding piece, the lower light shielding piece and the upper groove type photoelectric sensor and the lower groove type photoelectric sensor of the utility model embodiment.

[0024] Figure 7 It is the connection structure schematic view of the rotary motor and the fixed plate and the adjusting plate of the utility model embodiment.

[0025] Figure 8 It is the explosion structure schematic view of the rotary motor and the fixed plate and the adjusting plate of the utility model embodiment.

[0026] In the drawing: 1, fixed plate, 11, avoiding through hole, 12, stop block, 121, positioning hole, 13, adjusting hole, 14, adjusting plate, 141, adjusting plate through slot, 142, guide block, 15, guide slot, 16, adjusting bolt, 17, fastening bolt,

[0027] 2, rotary drive mechanism, 21, output rotating shaft, 211, flange plate, 212, upper light shielding piece, 2121, upper notch, 213, lower light shielding piece, 2131, lower notch, 22, rotary motor, 23, fixed cylinder, 231, connecting frame, 232, NFC card reader, 24, main synchronous wheel, 25, slave synchronous wheel, 26, synchronous belt, 27, rotating bearing, 28, upper groove type photoelectric sensor, 29, lower groove type photoelectric sensor,

[0028] 3, downward pressing drive mechanism, 31, downward pressing motor, 32, guide rod, 33, screw rod,

[0029] 4, rotating disc, 41, avoiding slot, 42, sliding rod, 43, limiting disc, 44, compression spring,

[0030] 5, downward pressing block, 51, clamping structure, 511, clamping slot, 512, clamping plate,

[0031] 6, downward pressing piece, 61, downward pressing piece light shielding piece, 62, downward pressing piece groove type photoelectric sensor. DETAILED DESCRIPTION

[0032] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the utility model belong to the protection scope of the utility model.

[0033] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0034] Example

[0035] See appendix Figure 1 , 2 As shown in Figures 3 and 4, a stamping device includes a horizontally arranged fixing plate 1, which can be fixedly installed in the outer casing (not shown in the figure) of the stamping device by bolts. A rotation drive mechanism 2 and a pressing drive mechanism 3 are provided on the fixing plate 1.

[0036] The output shaft 21 of the rotary drive mechanism 2 is vertically arranged. A horizontally arranged flange 211 is welded to the lower end of the output shaft 21. A rotating disk 4 is horizontally fixed to the flange 211 of the output shaft 21 by bolts. Several clearance grooves 41 are formed on the rotating disk 4. The clearance grooves 41 are formed from the outer circumference of the rotating disk 4 inward, and the clearance grooves 41 have a U-shaped structure. Specifically, the clearance grooves 41 can be adapted to the required type of stamp. In this embodiment, four clearance grooves 41 are evenly distributed on the rotating disk 4.

[0037] Two sliding rods 42 are vertically fixed to the rotating disks 4 on both sides of each clearance groove 41 by bolts. A limiting disk 43 is horizontally fixed to the lower end of each sliding rod 42 by welding or bolts. A pressing block 5 slides through the sliding rod on both sides of each clearance groove 41. Therefore, in this embodiment, four pressing blocks 5 are provided corresponding to the clearance grooves 41. A snap-fit ​​structure 51 is provided on each pressing block 5. A compression spring 44 is sleeved on the sliding rod 42 between the pressing block 5 and the limiting disk 43, and the compression spring 44 is in a compressed state. Furthermore, to make the sliding of the pressing block 5 on the sliding rod 42 smoother, an existing linear bearing is vertically fixedly embedded in the pressing block 5, and the inner ring of the linear bearing slides on the sliding rod 42.

[0038] A pressing component 6 is provided at the output end of the pressing drive mechanism 3. The pressing drive mechanism 3 can drive the pressing component 6 to extend into the relief groove 41 to press down the existing stamp or stamp holder that is stuck on the pressing block 5.

[0039] Thus, by the above structure, the seal or the seal fixture with the seal can be first fixed on the clamping structure 51 of the pressing block 5, when the seal needs to be designated to seal, the existing controller can control the rotary drive mechanism 2 to drive the rotating disc 4 to rotate, so that the corresponding seal is rotated to the designated seal position, and then the pressing drive mechanism 3 can drive the pressing member 6 to move downward, and the pressing seal or seal fixture is arranged in the avoiding groove 41, so as to drive the pressing block 5 to move downward, thereby realizing automatic sealing. After the pressing drive mechanism 3 drives the pressing member 6 to rise, the pressing block 5 drives the seal to move upward to the initial position.

[0040] Referring to Figure 2 As shown in the figure, the pressing drive mechanism 3 can adopt various structure forms, in this embodiment, the pressing drive mechanism 3 includes a pressing motor 31 fixedly installed on the fixed plate 1 vertically downward through bolts, a guide rod 32 fixedly connected vertically on the fixed plate 1 through bolts, a lead screw 33 fixedly connected on the output shaft of the pressing motor 32 through a shaft coupling, the pressing member 6 is a sleeve structure with internal threads meshing with the lead screw 33, the pressing member 6 is slidably arranged on the guide rod 32 and the pressing member 6 is threadedly connected on the lead screw 33 of the output shaft of the pressing motor 31. Thus, the output shaft of the pressing motor 31 can drive the lead screw 33 to rotate, thereby driving the pressing member 6 to move up and down along the guide rod 32.

[0041] Referring to Figure 5 As shown in the figure, the rotary drive mechanism 2 includes a rotary motor 22 fixedly installed on the fixed plate 1 vertically upward through bolts, a fixed cylinder 23 fixedly installed on the lower end surface of the fixed plate 1 vertically through bolts, an output rotating shaft 21 rotatably connected in the fixed cylinder 23, the rotary motor 22 drives the output rotating shaft 21 to rotate through a synchronous belt assembly.

[0042] Specifically, the synchronous belt assembly includes a main synchronous wheel 24 keyed on the output shaft of the rotary motor 22, a slave synchronous wheel 25 keyed on the upper end of the output rotating shaft 21, and a synchronous belt 26 meshing and connected on the main synchronous wheel 24 and the slave synchronous wheel 25.

[0043] Referring to Figure 5 , 6 As shown in the figure, further, in order to make the rotation of the output rotating shaft 21 in the fixed cylinder 23 more stable, a rotating bearing 27 is fixedly embedded in the fixed cylinder 23, and the output rotating shaft 21 is fixedly arranged in the inner ring of the rotating bearing 27.

[0044] Further, the disc-shaped upper light-shielding plate 212 and the lower light-shielding plate 213 are horizontally fixed on the output rotating shaft 21, an upper notch 2121 is formed on the upper light-shielding plate 212, four lower notches 2131 are uniformly formed on the lower light-shielding plate 213, and the upper notch 2121 is aligned with one of the lower notches 2131. The upper slot-shaped photoelectric sensor 28 and the lower slot-shaped photoelectric sensor 29 are fixedly connected to the fixed cylinder 23 by bolts, and the upper light-shielding plate 212 and the lower light-shielding plate 213 are respectively arranged in the sensing slots of the corresponding upper slot-shaped photoelectric sensor 28 and lower slot-shaped photoelectric sensor 29.

[0045] By arranging the lower slot-shaped photoelectric sensor 29 and the lower light-shielding plate 213 with four lower notches 2131, the rotating angle of the rotating disc 4 can be controlled to accurately control the rotation of the required seal to the specified position. By arranging the upper slot-shaped photoelectric sensor 28 and the upper light-shielding plate 212 with one upper notch 2121, the reset of each seal position can be easily realized, that is, the upper slot-shaped photoelectric sensor 28 passes through the upper notch 2121 once, which represents that the rotating disc 4 rotates one revolution.

[0046] In addition, the pressing piece light-shielding plate 61 can be fixedly installed on the inner end face of the pressing piece 6, and the pressing piece slot-shaped photoelectric sensor 62 is installed on the fixed cylinder 23 opposite to the pressing piece light-shielding plate 61 by bolts. When the pressing piece 6 is in the initial position, that is, when the pressing piece 6 does not press the seal holder, the pressing piece light-shielding plate 61 is arranged in the sensing slot of the pressing piece slot-shaped photoelectric sensor 62, and when the pressing piece 6 presses the seal holder and moves upward to stop when the pressing piece light-shielding plate 61 is arranged in the sensing slot of the pressing piece slot-shaped photoelectric sensor 62.

[0047] Referring to Figure 1 , 6 , the connecting frame 231 is fixedly connected to the fixed cylinder 23 by bolts, and the existing NFC card reader 232 is horizontally fixedly installed on the connecting frame 231. The NFC card reader 232 is arranged above the clamping groove 511 and can be arranged adjacent to the pressing piece 6. The NFC card reader 232 can read the seal information in the corresponding chip arranged in the seal holder. The principle of the NFC card reader 232 reading the seal information in the chip is the prior art, which will not be described here.

[0048] Referring to Figure 7 , 8As shown, in order to facilitate the tensioning of the synchronous belt 26, a waist-shaped avoidance through hole 11 is opened on the fixed plate 1, the output shaft of the rotary motor 22 is arranged in the avoidance through hole 11 and extends to the above of the fixed plate 1 to be connected with the main synchronous wheel 24 by keying. The fixed plate 1 away from the avoidance through hole 11 on the side of the synchronous wheel 25 is integrally formed and fixedly connected with the arc-shaped stopper 12, the waist-shaped adjustment hole 13 is opened on the fixed plate 1 on both sides of the avoidance through hole 11 along the length direction of the fixed plate 1, the adjustment hole 13 penetrates the fixed plate 1, and the guide groove 15 penetrating the fixed plate 1 is opened on the fixed plate 1 away from the stopper 12 on the side of the synchronous wheel 25, and the guide groove 15 is arranged between the adjustment holes 13 on both sides along the length direction of the avoidance through hole 11.

[0049] The adjustment plate 14 is arranged on the upper end surface of the fixed plate 1, the adjustment plate through groove 141 is arranged on the adjustment plate 14, the adjustment plate through groove 141 is provided with an opening structure, the stopper 12 is arranged in the adjustment plate through groove 141, the guide block 142 is integrally formed and fixedly connected with the adjustment plate 14 on the lower end surface of the adjustment plate 14, and the guide block 142 is slidably embedded in the guide groove 15. The positioning hole 121 is opened on the side surface of the stopper 12 away from the side of the synchronous wheel 25, the adjustment bolt 16 is threadedly connected in the guide block 142 on the adjustment plate 14 and can abut against the positioning hole 121 on the stopper 12, and the fastening bolt 17 is sequentially arranged in the adjustment plate 14 and the adjustment hole 13 and is fixedly connected with the housing of the rotary motor 22.

[0050] When the synchronous belt 26 needs to be tensioned or the tightness is adjusted, the adjustment bolt 16 is only needed to be screwed or loosened, so that the adjustment plate 14 slides along the length direction of the guide groove 15, thereby adjusting the distance between the groove wall of the adjustment plate through groove 141 opposite to the stopper 12 and the stopper 12, thereby driving the rotary motor 22 and the main synchronous wheel 24 to move correspondingly, and after the adjustment is completed, the fastening bolt 17 is screwed to fix the position of the adjustment plate 14 and the rotary motor 22 on the fixed plate 1.

[0051] Referring to Figure 3 As shown, the clamping structure 51 is arranged on each pressing block 5, the clamping structure 51 includes the clamping groove 511 opened on the outer side of the pressing block 5 below the avoidance groove 41 and the clamping plate 512 fixedly connected on the groove wall of the clamping groove 511. The avoidance groove 41 is opened on the inner side of the pressing block 5 and has a U-shaped groove structure. The seal stamp holder can be fixed in various forms, such as the utility model patent with the application number 202020249753.7 of a seal stamp holder and seal control instrument in the prior art, or the magnetic components that can be attracted to each other can be respectively fixedly embedded on the existing seal stamp holder and the clamping plate 512, so as to detachably fix and install the seal stamp holder on the clamping plate 512 in the clamping groove 511.

[0052] The working process of the embodiment of the utility model is as follows:

[0053] The components of the utility model are installed in the shell of the seal control instrument as described above, and are connected through the existing controller and power supply components, the four seal fixtures fixed with seals are respectively clamped on the clamping structures 51 on the four lower pressing blocks 5, when automatic sealing is needed, the controller can control the rotary motor 22 to drive the output shaft 21, the rotating disc 4, the lower pressing block 5 and the seal clamping and seal rotation through the synchronous belt component, so that the seal needed is rotated to be directly below the pressing part 6, at this time, the controller controls the lower pressing motor 31 to drive the screw rod 33 to rotate, so as to drive the lower pressing part 6 to move downwards and move downwards against the seal fixture, at this time, the lower pressing block 5 is separated from the rotating disc 4 and makes the compression spring 44 compressed, so as to drive the seal fixture and the seal to move downwards, so as to complete the sealing operation of the seal; then the lower pressing motor 31 drives the screw rod 33 to rotate reversely, so as to move the lower pressing part 6 to the initial position, at this time, the compression spring 44 drives the lower pressing block 5, the seal fixture and the seal to recover to the initial position.

[0054] It should be noted that the structure of the utility model is to be protected, and the controller, power supply component and the connection mode of each power supply structure and the controller, power supply component involved in the utility model structure are all prior art, as long as the above working process can be met, which will not be repeated here. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A stamping device, comprising a horizontally arranged fixing plate, characterized in that: A rotary drive mechanism and a pressing drive mechanism are provided on the fixed plate; The output shaft of the rotary drive mechanism is vertically arranged and fixedly connected to a horizontally arranged rotating disk. Several clearance grooves are provided on the rotating disk. Two slide rods are vertically fixedly connected to the rotating disks on both sides of each clearance groove. A limit plate is fixedly connected to the lower end of the slide rod. A pressing block is slidably passed through the slide rod on both sides of each clearance groove. A snap-fit ​​structure is provided on the pressing block. A compression spring is sleeved on the slide rod between the pressing block and the limit plate. A pressing component is provided at the output end of the pressing drive mechanism. The pressing drive mechanism can drive the pressing component to extend into the clearance groove to press down the stamp that is stuck on the pressing block.

2. The stamping device according to claim 1, characterized in that: The rotary drive mechanism includes a rotary motor fixedly connected to the fixed plate, a fixed cylinder vertically fixedly connected to the fixed plate, and an output shaft rotatably connected inside the fixed cylinder. The rotary motor drives the output shaft to rotate via a synchronous belt assembly.

3. The stamping device according to claim 2, characterized in that: A rotating bearing is fixedly embedded inside the fixed cylinder, and the output shaft is fixedly inserted through the inner ring of the rotating bearing.

4. The stamping device according to claim 1, characterized in that: The pressing drive mechanism includes a pressing motor vertically fixedly connected to the fixed plate, a guide rod vertically fixedly connected to the fixed plate, and a pressing component slidably passing through the guide rod and threadedly connected to a lead screw fixedly connected to the output shaft of the pressing motor.

5. The stamping device according to claim 1, characterized in that: The snap-fit ​​structure includes a snap-fit ​​groove opened on the outside of the lower pressure block at the clearance groove and a snap-fit ​​plate horizontally fixedly connected to the groove wall of the snap-fit ​​groove.

6. The stamping device according to claim 2, characterized in that: An upper light-shielding plate and a lower light-shielding plate are horizontally fixedly connected to the output shaft. An upper notch is opened on the upper light-shielding plate, and four lower notches are evenly distributed on the lower light-shielding plate. An upper slot type photoelectric sensor and a lower slot type photoelectric sensor are fixedly connected to the fixed cylinder. The upper light-shielding plate and the lower light-shielding plate are respectively inserted into the sensing slots of the corresponding upper slot type photoelectric sensor and lower slot type photoelectric sensor.

7. The stamping device according to claim 2, characterized in that: The synchronous belt assembly includes a main synchronous pulley fixedly connected to the output shaft of the rotary motor, a driven synchronous pulley fixedly connected to the upper end of the output shaft, and a synchronous belt meshing and connected to the main synchronous pulley and the driven synchronous pulley.

8. The stamping device according to claim 7, characterized in that: A waist-shaped clearance through hole is provided on the fixed plate. The output shaft of the rotary motor passes through the clearance through hole and extends to the top of the fixed plate before being fixedly connected to the main synchronous pulley. A stop block is fixedly connected to the fixed plate on the side of the clearance through hole away from the driven synchronous pulley. Waist-shaped adjustment holes are provided on the fixed plates on both sides of the clearance through hole along its length. An adjustment plate is provided on the upper surface of the fixed plate. An adjustment bolt is threaded into the adjustment plate and can abut against the stop block. A fastening bolt passes through the adjustment plate and the adjustment hole in sequence and is fixedly connected to the rotary motor.

9. A stamping device according to claim 8, characterized in that: A guide groove is provided on the fixed plate on the side away from the stop block of the synchronous pulley, and a guide block is fixedly connected to the lower end face of the adjustment plate. The guide block can be slidably embedded in the guide groove.

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