Material receiving mechanism of punching machine

Abstract

The utility model relates to the technical field of material receiving mechanisms of punching machines, and discloses a material receiving mechanism of a punching machine, which comprises a discharging mechanism, a rotating mechanism, eight hoppers, eight screening mechanisms and a conveying mechanism, the discharging mechanism comprises a discharging port, the rotating mechanism comprises two *-shaped frames, each of the eight hoppers comprises a material box, and the screening mechanisms are arranged on the discharging port. Each screening mechanism comprises a screen plate and two second motors, and the conveying mechanism comprises a conveying belt and two rotating shaft frames. And a rubber strip is fixedly arranged at the lower position of the front end of the discharge port. According to the mechanism, the motor drives the rotating shaft to drive the cam and the connecting arm to enable the sliding block to do reciprocating linear motion in the sliding groove block, and therefore vibration screening of the screen plate is achieved, element scraps are effectively separated, and element cleanliness is guaranteed; the material receiving efficiency and stability are improved through the multiple hoppers in a limited space, and space utilization is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of the material receiving mechanism of a stamping machine, in particular to a material receiving mechanism of a stamping machine. Background Technique

[0002] A stamping machine is a metal processing equipment, mainly used for processing metal raw materials into parts or products with required shapes through impact force and pressure. Its working principle mainly includes steps such as loading, unloading, impact, pressure, material resetting, and chip removal. The stamping machine makes the impact head collide with the bottom of the mold through the up and down movement of the workbench, and at the same time applies a certain pressure to ensure that the material completely fills the cavity of the mold, so as to process parts with precise dimensions. The stamping machine is widely used in industries such as automobiles, electronics, and household appliances for producing metal parts of various shapes. Stamping processing has the characteristics of high efficiency, low material consumption, simple operation, high dimensional accuracy, good interchangeability, good surface quality, high strength, and low cost, and can manufacture metal parts with complex shapes and high dimensional accuracy. Setting a material receiving mechanism for the stamping machine is to automatically collect the processed components and waste materials, prevent them from accumulating inside the machine or scattering in the working area, thereby avoiding equipment blockage, damage, or operation safety risks, and also helping to maintain the cleanliness of the working environment and improve production efficiency.

[0003] After retrieval, the existing patent (publication number: CN216181238U) discloses a "rotary material receiving mechanism for an ultrasonic stamping machine, including a machine frame, a first rotating mechanism, and a rotating table. The first rotating mechanism is fixed on the machine frame, and the first rotating mechanism drives the rotating table to rotate. A finished product material box is placed on the rotating table. The utility model provides a rotary material receiving mechanism for an ultrasonic stamping machine, which can realize automatic loading and unloading of the ultrasonic stamping machine."

[0004] The inventor found the following problems in the process of implementing the present application: Although the above comparative patent provides a rotary material receiving mechanism for an ultrasonic stamping machine by setting components such as a machine frame, a first rotating mechanism, a rotating table, and a finished product material box, the capacity of the finished product material box is limited, and a manipulator is required to replace the finished product material box, and continuous material receiving cannot be achieved, resulting in the need to improve the operation efficiency. Therefore, those skilled in the art provide a material receiving mechanism for a stamping machine to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the present utility model is to solve the drawbacks existing in the prior art, and a material receiving mechanism for a punching machine is proposed. This mechanism drives the rotating shaft by a motor to drive the cam and the connecting arm, so that the slider reciprocates linearly in the chute block, thereby realizing the vibration screening of the screen plate, effectively separating the element debris, ensuring the cleanliness of the elements, and at the same time using the discharging mechanism and the rotating mechanism to work together to improve the material receiving efficiency and stability by using multiple hoppers in a limited space and optimizing the space utilization.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions: A material receiving mechanism for a punching machine, including a discharging mechanism, a rotating mechanism, eight hoppers, eight screening mechanisms and a conveying mechanism. The discharging mechanism includes a discharging port. The rotating mechanism includes two cross-shaped frames. Each of the eight hoppers includes a material box. Each of the eight screening mechanisms includes a screen plate and two second motors. The conveying mechanism includes a conveyor belt and two rotating shaft frames.

[0007] A rubber strip is fixedly arranged at the lower front position of the discharging port, and the rubber strip is movably arranged at the rear upper position of the adjacent material box. The eight material boxes are respectively rotatably arranged between the inner sides of the two cross-shaped frames through rotating shafts. The eight screen plates are respectively slidably arranged inside the eight material boxes. A stop rod is rotatably arranged between the two rotating shaft frames, and the rod body of the stop rod is movably arranged at the front edge position of the adjacent material box.

[0008] Further, the rubber strip is made of rubber material, and the cross-section of the rubber strip is a triangle with one side being an arc. A baffle is fixedly arranged between the fixed frames on both sides at the rear end of the conveyor belt, and the baffle forms a certain inclination angle with the horizontal plane.

[0009] Further, a first rotating shaft is fixedly arranged through the center of the inner sides of the two cross-shaped frames. Both ends of the first rotating shaft are rotatably arranged through two brackets. Both ends of the first rotating shaft are respectively rotatably arranged at the upper positions inside the two brackets. A first motor is fixedly arranged at the upper position on the outer side of one of the two brackets through a bracket, and one end of the first rotating shaft is fixedly connected to the output end of the first motor.

[0010] Further, counterweights are fixedly arranged at the middle positions of the lower ends of the eight material boxes. Drawers are respectively penetrated and clamped at the lower front positions of the eight material boxes. Two concealed handles are symmetrically fixedly arranged at the middle positions of the fronts of the eight drawers.

[0011] Further, the square protrusions at both ends of the eight sieve plates are respectively slidably arranged into the square openings with corresponding widths at both ends of the eight material boxes. At the centers of the lower ends of the square protrusions at both ends of the eight sieve plates, chute blocks are fixedly arranged. Sliders are slidably arranged in the internal chutes of the sixteen chute blocks. First springs are fixedly arranged between the inner bottom surfaces of the upper ends of the sixteen chute blocks and the upper ends of the sixteen sliders. Connecting arms are rotatably arranged between the two sides of the lower grooves at the lower ends of the sixteen sliders. Cams are rotatably arranged at positions close to the lower sides on both sides of each of the sixteen connecting arms. A second rotating shaft is rotatably arranged through the position close to the lower side on the outer side of the cam on the outer side of each connecting arm. One ends of the sixteen second rotating shafts are respectively fixedly connected to the output ends of the sixteen second motors. The sixteen second motors are respectively fixedly arranged at positions close to the lower sides on both sides of the eight material boxes through support frames. A third rotating shaft is rotatably arranged through the position close to the lower side on the inner side of the cam on the inner side of each connecting arm. One ends of the sixteen third rotating shafts are respectively rotatably arranged on both sides of the eight material boxes.

[0012] Further, vertical grooves are provided at the upper and lower ends of the square openings at both ends of the eight material boxes. Slide plates are slidably arranged in the sixteen vertical grooves. Two second springs are symmetrically fixedly arranged between the upper ends of the eight upper slide plates among the sixteen slide plates and the upper bottom surfaces of the eight upper vertical grooves among the sixteen vertical grooves, and between the lower ends of the eight lower slide plates among the sixteen slide plates and the lower bottom surfaces of the eight lower vertical grooves among the sixteen vertical grooves.

[0013] Further, there is damping between the contact surfaces of the eight drawers and the eight material boxes, and the eight drawers inside the eight material boxes will not fall out when the eight material boxes rotate.

[0014] Further, when the second motors fixedly arranged at both ends of each material box through support frames operate, they all rotate synchronously.

[0015] The utility model has the following beneficial effects:

[0016] 1. A material receiving mechanism of a stamping machine proposed by the utility model. The screening mechanism of this mechanism drives the rotating shaft through a second motor to drive the cam and the connecting arm to make the slider reciprocate in the chute block, realizing the vibration screening of the sieve plate in the material box. The slide plate reciprocates in the vertical groove along with the vibration of the sieve plate, and with the auxiliary reset function of the second spring, it ensures that the debris will not leak out from the square opening of the material box, improves the accuracy and thoroughness of debris separation, effectively separates the debris on the component, ensures the cleanliness of the component, improves the efficiency of subsequent processes. The damping design between the contact surfaces of the drawer and the material box, as well as the counterweight block at the lower end of the material box, ensure the stability of the material box during the rotation of the two cross-shaped frames, reducing the risk of component spillage caused by rotation.

[0017] 2. A material receiving mechanism for a stamping machine proposed by the present utility model. Through the coordinated operation of the material discharging mechanism and the rotating mechanism, efficient material receiving for stamping components is achieved. The rubber strip at the front end of the material discharging port is made of rubber material and can deform when contacting the edge of the material box, ensuring the smooth passage of the material box. At the same time, multiple material boxes continuously pass through, keeping a material box always under the material discharging port to receive components, improving the continuity and stability of material receiving. The rotating mechanism adopts a cross-shaped frame design, enabling eight hoppers to be compactly arranged, reducing the floor area and improving the space utilization rate, ensuring the uniformity and continuity of material receiving, and avoiding the decline of material receiving efficiency caused by space limitations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an axonometric schematic diagram of the present utility model;

[0019] Figure 2 is an axonometric schematic diagram of the rotating mechanism, eight hoppers and eight screening mechanisms of the present utility model;

[0020] Figure 3 is an axonometric schematic diagram of the hopper and screening mechanism of the present utility model when the drawer is pulled out;

[0021] Figure 4 is a front view and cross-sectional schematic diagram of the hopper and screening mechanism of the present utility model;

[0022] Figure 5 is an axonometric schematic diagram of the screening mechanism of the present utility model;

[0023] Figure 6 is of the present utility model Figure 1 amplified schematic diagram of the structure at position A;

[0024] Figure 7 is of the present utility model Figure 1 amplified schematic diagram of the structure at position B;

[0025] Figure 8 is of the present utility model Figure 3 amplified schematic diagram of the structure at position C;

[0026] Figure 9 is of the present utility model Figure 4 amplified schematic diagram of the structure at position D;

[0027] Figure 10 is of the present utility model Figure 5 amplified schematic diagram of the structure at position E.

[0028] Legend:

[0029] 1. Discharging mechanism; 2. Rotating mechanism; 3. Hopper; 4. Screening mechanism; 5. Conveying mechanism; 101. Discharge port; 102. Rubber strip; 201. First motor; 202. First rotating shaft; 203. Cross-shaped frame; 204. Bracket; 301. Material box; 302. Drawer; 401. Second motor; 402. Cam; 403. Connecting arm; 404. Second rotating shaft; 405. Third rotating shaft; 406. Slide block; 407. First spring; 408. Slide groove block; 409. Screen plate; 410. Slide plate; 411. Vertical groove; 412. Second spring; 501. Conveyor belt; 502. Baffle; 503. Rotating shaft bracket; 504. Stop bar. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 , an embodiment provided by the present invention: a material receiving mechanism of a punching machine, including a discharging mechanism 1, a rotating mechanism 2, eight hoppers 3, eight screening mechanisms 4 and a conveying mechanism 5. The discharging mechanism 1 includes a discharge port 101. The rotating mechanism 2 includes two cross-shaped frames 203. Each of the eight hoppers 3 includes a material box 301. Each of the eight screening mechanisms 4 includes a screen plate 409 and two second motors 401. The conveying mechanism 5 includes a conveyor belt 501 and two rotating shaft brackets 503;

[0032] A rubber strip 102 is fixedly arranged at a position near the lower end of the front end of the discharge port 101. The rubber strip 102 is movably arranged at a position near the rear end of the upper end of the adjacent material box 301. The rubber strip 102 is made of rubber. The cross-section of the rubber strip 102 is a triangle with one side being an arc. The eight material boxes 301 are respectively rotatably arranged between the inner sides of the two cross-shaped frames 203 by rotating shafts. The eight screen plates 409 are respectively slidably arranged inside the eight material boxes 301. A stop bar 504 is rotatably arranged between the two rotating shaft brackets 503. The body of the stop bar 504 is movably arranged at a position near the front edge of the adjacent material box 301. A baffle 502 is fixedly arranged between the fixed frames on both sides of the rear end of the conveyor belt 501. The baffle 502 forms a certain inclination angle with the horizontal plane;

[0033] Specifically, during use, the stamped components are discharged well from the discharge port 101 in the discharging mechanism 1. When each material box 301 passes through the discharge port 101 as it rotates clockwise with the rotating mechanism 2, due to the rubber material of the rubber strip 102, the rubber strip 102 deforms when it comes into contact with the edge of each material box 301, and then it passes through smoothly. During the rotation process, there is always a material box 301 below the discharge port 101 to receive well the components discharged from the discharge port 101. The sieve plate 409 of the screening mechanism 4 in each material box 301 screens the components in the material box 301 well, separating the debris remaining on the components during the stamping process from the components well;

[0034] When the material box 301 rotates clockwise and passes through the stop bar 504, due to the blocking effect of the stop bar 504, the material box 301 tilts towards the conveyor belt 501 side until it rotates ninety degrees sideways, and the components in the material box 301 are discharged well onto the conveyor belt 501 via the baffle 502 and are conveyed by the conveyor belt 501 for subsequent processes. During this period, the contact position between the stop bar 504 and the upper end of the material box 301 maintains a good tangential rotation.

[0035] Refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 8 and Figure 9 : A first rotating shaft 202 is fixedly arranged through the centers inside the two cross-shaped frames 203. Two brackets 204 are rotatably arranged through both ends of the first rotating shaft 202. Both ends of the first rotating shaft 202 are respectively rotatably arranged through the upper inner positions of the two brackets 204. A first motor 201 is fixedly arranged at the upper outer position of one of the two brackets 204 through a bracket, and one end of the first rotating shaft 202 is fixedly connected to the output end of the first motor 201;

[0036] Counterweight blocks are fixedly arranged at the middle positions of the lower ends of the eight material boxes 301. Drawers 302 are respectively arranged through and clamped at the lower front positions of the eight material boxes 301. Two hidden handles are symmetrically fixedly arranged at the middle positions of the fronts of the eight drawers 302. There is damping between the contact surfaces of the eight drawers 302 and the eight material boxes 301. When the eight material boxes 301 rotate, the eight drawers 302 inside them will not fall out. When the second motors 401 fixedly arranged through the support frames at both ends of each material box 301 operate, they all rotate synchronously;

[0037] Specifically, the first motor 201 drives the first rotating shaft 202 to rotate, driving the two cross-shaped frames 203 to rotate accordingly. The eight material boxes 301 rotate with the two cross-shaped frames 203 and rotate well around the first rotating shaft 202. The two brackets 204 play a good role in limiting and supporting the first rotating shaft 202. The counterweight blocks keep the bottoms of the eight material boxes 301 downward during rotation, ensuring that the components in the boxes are not accidentally spilled. The damping between the contact surfaces of the drawer 302 and the material boxes 301 ensures that the drawer 302 rotates well with the material boxes 301 without accidentally coming off.

[0038] Refer to Figure 3 、 Figure 4 、 Figure 5 、 Figure 8 、 Figure 9 and Figure 10 : The square protrusions at both ends of the eight sieve plates 409 are respectively slidably arranged in the square openings with corresponding widths at both ends of the eight material boxes 301. At the centers of the lower ends of the square protrusions at both ends of the eight sieve plates 409, chute blocks 408 are fixedly arranged. Sliders 406 are slidably arranged in the internal chutes of the sixteen chute blocks 408. First springs 407 are fixedly arranged between the upper inner bottom surfaces of the sixteen chute blocks 408 and the upper ends of the sixteen sliders 406. Connecting arms 403 are rotatably arranged between the two sides of the lower ends of the grooves of the sixteen sliders 406. Cams 402 are rotatably arranged at the positions close to the lower sides of both sides of the sixteen connecting arms 403.

[0039] At the positions close to the lower sides of the outer sides of the cams 402 on the outer sides of each connecting arm 403, second rotating shafts 404 are rotatably arranged through. One ends of the sixteen second rotating shafts 404 are respectively fixedly connected to the output ends of the sixteen second motors 401. The sixteen second motors 401 are respectively fixedly arranged at the positions close to the lower sides of both sides of the eight material boxes 301 through support frames. At the positions close to the lower sides of the inner sides of the cams 402 on the inner sides of each connecting arm 403, third rotating shafts 405 are rotatably arranged through. One ends of the sixteen third rotating shafts 405 are respectively rotatably arranged at both sides of the eight material boxes 301.

[0040] Vertical grooves 411 are opened at the upper and lower ends of the square openings at both ends of the eight material boxes 301. Slide plates 410 are slidably arranged in the sixteen vertical grooves 411. Two second springs 412 are symmetrically fixedly arranged between the upper ends of the eight upper slide plates 410 among the sixteen slide plates 410 and the upper bottom surfaces of the eight upper vertical grooves 411 among the sixteen vertical grooves 411, and between the lower ends of the eight lower slide plates 410 among the sixteen slide plates 410 and the lower bottom surfaces of the eight lower vertical grooves 411 among the sixteen vertical grooves 411.

[0041] Specifically, during use, the second motors 401 at both ends of each material box 301 drive the second rotating shaft 404 to cooperate with the third rotating shaft 405 to make the two cams 402 rotate smoothly. The connecting arm 403 rotatably connected between the convex ends of the two cams 402 drives the slider 406 rotatably connected to the upper end to reciprocate linearly in the corresponding chute block 408, thereby making the screen plate 409 vibrate smoothly in the material box 301, and fully screening the debris that enters the material box 301 with the components into the drawer 302 for subsequent cleaning. During this period, the first spring 407 between the inner bottom surface of the upper end of the chute block 408 and the upper end of the slider 406 plays a good role in assisting the reset. During the up-and-down vibration of the screen plate 409, the sliding plate 410 reciprocates smoothly in the vertical groove 411, and the second spring 412 in the vertical groove 411 plays a good role in assisting the reset, ensuring that the debris will not leak out through the square openings provided at both ends of the screen plate 409 at both ends of the material box 301.

[0042] Working principle: During use, the stamped components are smoothly discharged from the discharge port 101 in the discharge mechanism 1. When each material box 301 passes through the discharge port 101 as it rotates clockwise with the rotating mechanism 2, the rubber strip 102 deforms when it comes into contact with the edge of each material box 301 and then passes through smoothly. During the rotation process, there is always a material box 301 below the discharge port 101 to smoothly receive the components discharged from the discharge port 101. The screen plate 409 of the screening mechanism 4 in each material box 301 screens the components in the material box 301 smoothly, separating the debris remaining on the components during the stamping process from the components well. When the material box 301 rotates clockwise and passes through the stop bar 504, due to the blocking effect of the stop bar 504, the material box 301 tilts towards the conveyor belt 501 side until it rotates ninety degrees sideways, and the components in the material box 301 are smoothly discharged onto the conveyor belt 501 through the baffle 502 and are conveyed by the conveyor belt 501 for subsequent processes. During this period, the contact position between the stop bar 504 and the upper end of the material box 301 remains in good tangential rotation;

[0043] Secondly, the second motors 401 at both ends of each material box 301 drive the second rotating shaft 404 to cooperate with the third rotating shaft 405 to make the two cams 402 rotate smoothly. The connecting arm 403 rotatably connected between the convex ends of the two cams 402 drives the slider 406 rotatably connected to the upper end to reciprocate linearly in the corresponding chute block 408, thereby making the screen plate 409 vibrate smoothly in the material box 301, and fully screening the debris that enters the material box 301 with the components into the drawer 302 for subsequent cleaning. During this period, the first spring 407 between the inner bottom surface of the upper end of the chute block 408 and the upper end of the slider 406 plays a good role in assisting the reset. During the up-and-down vibration of the screen plate 409, the sliding plate 410 reciprocates smoothly in the vertical groove 411, and the second spring 412 in the vertical groove 411 plays a good role in assisting the reset, ensuring that the debris will not leak out through the square openings provided at both ends of the screen plate 409 at both ends of the material box 301.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A material receiving mechanism for a stamping machine, comprising a discharging mechanism (1), a rotating mechanism (2), eight hoppers (3), eight screening mechanisms (4) and a conveying mechanism (5), characterized in that: The discharging mechanism (1) includes a discharge port (101), the rotating mechanism (2) includes two cross-shaped frames (203), all eight hoppers (3) include hopper boxes (301), all eight screening mechanisms (4) include screen plates (409) and two second motors (401), and the conveying mechanism (5) includes a conveyor belt (501) and two rotating shaft frames (503); A rubber strip (102) is fixedly arranged at the lower front position of the front end of the discharge port (101), and the rubber strip (102) is movably arranged at the rear upper position of the upper end of the adjacent hopper box (301). The eight hopper boxes (301) are respectively rotatably arranged between the inner sides of the two cross-shaped frames (203) through rotating shafts. The eight screen plates (409) are respectively slidably arranged inside the eight hopper boxes (301). A stop bar (504) is rotatably arranged between the two rotating shaft frames (503), and the body of the stop bar (504) is movably arranged at the front edge position of the adjacent hopper box (301).

2. The material receiving mechanism of a stamping machine according to claim 1, characterized in that: The rubber strip (102) is made of rubber, and the cross-section of the rubber strip (102) is a triangle with one side being an arc. A baffle (502) is fixedly arranged between the fixed frames on both sides of the rear end of the conveyor belt (501), and the baffle (502) forms a certain inclination angle with the horizontal plane.

3. The material receiving mechanism of a stamping machine according to claim 1, characterized in that: A first rotating shaft (202) is fixedly arranged through the center of the inner sides of the two cross-shaped frames (203). Both ends of the first rotating shaft (202) are rotatably arranged through two brackets (204). Both ends of the first rotating shaft (202) are respectively rotatably arranged through the upper inner positions of the two brackets (204). A first motor (201) is fixedly arranged at the upper outer position of one of the two brackets (204) through a bracket, and one end of the first rotating shaft (202) is fixedly connected to the output end of the first motor (201).

4. The material receiving mechanism of a stamping machine according to claim 1, characterized in that: Counterweights are fixedly arranged at the middle positions of the lower ends of the eight hopper boxes (301). Drawers (302) are respectively arranged through snap connections at the lower front positions of the eight hopper boxes (301). Two concealed handles are symmetrically fixedly arranged at the middle positions of the fronts of the eight drawers (302).

5. The material receiving mechanism of a stamping machine according to claim 1, characterized in that: The square protrusions at both ends of the eight sieve plates (409) are respectively slidably arranged in the square openings with corresponding widths at both ends of the eight material boxes (301). At the centers of the lower ends of the square protrusions at both ends of the eight sieve plates (409), chute blocks (408) are fixedly arranged. Sliders (406) are slidably arranged in the internal chutes of the sixteen chute blocks (408). First springs (407) are fixedly arranged between the inner bottom surfaces of the upper ends of the sixteen chute blocks (408) and the upper ends of the sixteen sliders (406). Connecting arms (403) are rotatably arranged between the two sides of the lower grooves of the sixteen sliders (406). Cams (402) are rotatably arranged at positions close to the lower sides on both sides of the sixteen connecting arms (403). At positions close to the lower sides on the outer sides of the cams (402) on the outer sides of each connecting arm (403), second rotating shafts (404) are rotatably arranged through. One ends of the sixteen second rotating shafts (404) are respectively fixedly connected to the output ends of the sixteen second motors (401). The sixteen second motors (401) are respectively fixedly arranged at positions close to the lower sides on both sides of the eight material boxes (301) through support frames. At positions close to the lower sides on the inner sides of the cams (402) on the inner sides of each connecting arm (403), third rotating shafts (405) are rotatably arranged through. One ends of the sixteen third rotating shafts (405) are respectively rotatably arranged on both sides of the eight material boxes (301).

6. The material receiving mechanism of a stamping machine according to claim 1, characterized in that: Vertical grooves (411) are provided at the upper and lower ends of the square openings at both ends of the eight material boxes (301). Slide plates (410) are slidably arranged in the sixteen vertical grooves (411). Two second springs (412) are symmetrically fixedly arranged between the upper ends of the eight upper slide plates (410) among the sixteen slide plates (410) and the upper bottom surfaces of the eight upper vertical grooves (411) among the sixteen vertical grooves (411), and between the lower ends of the eight lower slide plates (410) among the sixteen slide plates (410) and the lower bottom surfaces of the eight lower vertical grooves (411) among the sixteen vertical grooves (411).

7. The material receiving mechanism of a stamping machine according to claim 4, characterized in that: There is damping between the contact surfaces of the eight drawers (302) and the eight material boxes (301). When the eight material boxes (301) rotate, the eight drawers (302) inside them will not fall out.

8. The material receiving mechanism of a stamping machine according to claim 5, characterized in that: When the second motors (401) fixedly arranged at both ends of each material box (301) through support frames operate, they all rotate synchronously.

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