A steel strip shearing and punching device

Abstract

The application relates to the field of steel strip processing, in particular to a steel strip shearing and punching device which comprises a machine tool support, support plates fixedly connected to the front and back of the machine tool support, and a punching fixed die fixedly connected to the right side of the machine tool support. The steel strip shearing and punching device; when the thickness of the steel strip changes, the distance between the guide roller and the main guide roller changes, at this time, under the action of the adjusting mechanism, the length of the screw sleeve rod is automatically adjusted according to the distance between the main guide roller and the slave guide roller, under the driving of the transmission mechanism, the screw sleeve rod drives the punching movable die to move downward for punching and shearing, when the screw sleeve rod is long, the punching movable die moves downward for a long distance, when the screw sleeve rod is short, the punching movable die moves downward for a short distance, the gap between the punching fixed die and the punching movable die is effectively ensured, and the processing quality and the service life of the die are improved.

Description

Technical Field

[0001] This invention relates to the field of steel strip processing, specifically to a steel strip shearing and punching device. Background Technology

[0002] In the field of metal processing, steel strip is an important raw material and is widely used in industries such as automobile manufacturing and home appliance production. After production, steel strip is usually in coil form and needs to be sheared and punched before use.

[0003] The following problems exist in the existing technology and have not been well resolved: 1. Due to the different thicknesses of steel strips of different specifications, the gap between the moving die and the fixed die needs to be adjusted synchronously according to the thickness of the steel strip. Otherwise, if the gap is too large, burrs are easily generated at the punching position, while if the gap is too small, the wear of the die will be accelerated. During the use of the existing steel strip shearing and punching device, it is difficult to automatically adjust the gap between the moving die and the fixed die according to the different thicknesses of the steel strip. When the gap is not adjusted in time, it will affect the punching quality and the service life of the die. Summary of the Invention

[0004] The purpose of this invention is to provide a steel strip shearing and punching device to solve the problems mentioned in the background art: 1. In the use of some existing steel strip shearing and punching devices, it is difficult to automatically adjust the gap between the moving die and the fixed die according to the different thicknesses of the steel strip. To achieve the above objective, this invention provides the following technical solution: A steel strip shearing and punching device, comprising: a machine tool support, with support plates fixedly connected to both the front and rear sides of the machine tool support, a punching fixed die fixedly connected to the right side of the machine tool support, and a punching moving die that cooperates with the punching fixed die movably connected between the two support plates;

[0005] It also includes: a transmission mechanism, which is movably connected between the left sides of the two support plates, and the right end of the transmission mechanism is movably connected to the upper part of the punching moving die. The transmission mechanism is used to drive the steel strip to transport and to perform shearing and punching processing.

[0006] The support plate is equipped with an adjustment mechanism in the middle, which works in conjunction with the transmission mechanism to automatically adjust the gap of the punching die according to the thickness of the steel strip.

[0007] Preferably, the transmission mechanism includes: a transmission motor, fixed to the surface of the front support plate;

[0008] The drive rod is rotatably connected between the left sides of the two support plates, and a main guide roller is provided in the middle;

[0009] The guide roller is movably connected to the upper part of the two support plates and cooperates with the main guide roller to clamp the steel strip.

[0010] The gear rod meshes with the drive rod for transmission, and its surface is provided with transmission protrusions.

[0011] The screw sleeve rod is vertically slidably mounted on the top of the support plate, with its lower part connected to the adjustment mechanism and its upper part hinged to the punching moving die via an L-shaped lever;

[0012] An adjusting protrusion is movably connected to the end of a gear rod. A beveled sleeve is slidably provided on the surface of the drive rod. A beveled groove that mates with the beveled sleeve is opened at the end of the main guide roller. A Y-shaped transmission block is movably connected to the surface of the beveled sleeve, and one end of the Y-shaped transmission block overlaps with the side wall of the adjusting protrusion.

[0013] Preferably, a spur gear is fixedly sleeved on the rotating end of the transmission motor, and drive gears are fixedly sleeved on both ends of the drive rod. The spur gear meshes with the side wall of the drive gear on the same side, and the side wall of the drive gear meshes with the side wall of the adjacent gear rod.

[0014] The surface of the drive rod is provided with a sliding groove, the inner wall of the bevel sleeve is fixedly connected with a slider, the bevel sleeve is slidably disposed inside the sliding groove by the slider, the outer ring of the bevel sleeve is fixedly sleeved with a connecting bearing, the outer ring of the connecting bearing is symmetrically fixedly connected with connecting pins, the surface of the Y-shaped transmission block is symmetrically provided with connecting grooves, and the two connecting pins are respectively slidably disposed inside the two connecting grooves.

[0015] A support frame is slidably provided in the middle of the Y-shaped transmission block. The bottom of the support frame is fixedly connected to the top of the machine tool bracket. A restoring spring that cooperates with the support frame is movably sleeved on the surface of the Y-shaped transmission block.

[0016] Preferably, a guide rod is fixedly connected to the top of the support plate, a connecting block is movably sleeved on the surface of the guide rod, one end of the connecting block is fixedly connected to the upper part of the threaded rod, and a compression spring that cooperates with the connecting block is movably sleeved on the upper part of the guide rod.

[0017] Both ends of the L-shaped lever are provided with waist-shaped grooves, and one end of the L-shaped lever is movably connected to the upper part of the pressing screw rod through the waist-shaped grooves;

[0018] A crossbar is fixedly connected to the upper part of the punching die, and the other end of the L-shaped lever is movably connected to the end of the crossbar through a waist-shaped groove.

[0019] Preferably, the adjusting protrusion consists of a circular ring, a movable protrusion, and a fixed protrusion. The circular ring is fixedly connected to the end of the gear rod, the fixed protrusion is fixedly connected to the outer ring of the circular ring, and the movable protrusion is rotatably disposed on the outer ring of the circular ring.

[0020] Preferably, the adjustment mechanism includes: an active hinge rod connected to the end of the guide roller;

[0021] Driven hinge rod, connected to the end of drive rod;

[0022] The adjusting toothed plate is slidably set on the surface of the support plate and engages with the lower part of the threaded sleeve rod;

[0023] Vertical grooves and compression springs are used for elastic reset from the guide rollers.

[0024] Preferably, the driven hinge rod has a main hinge groove at its top, and the driven hinge rod is hinged to the end of the driving hinge rod through the main hinge groove;

[0025] The driven hinge rod has a driven hinge groove in the middle, and a moving block is fixedly connected to the end of the adjusting tooth plate. The support plate has a moving groove in the middle. The moving block is slidably disposed inside the corresponding moving groove, and one end of the moving block is slidably disposed inside the adjacent driven hinge groove.

[0026] Preferably, a shearing blade is fixedly connected to the right side of the punching moving die, and a punching head is fixedly connected to the middle position of the bottom of the punching moving die;

[0027] Spring rods are fixedly connected to the bottom of the moving punch die around its perimeter. A pressure plate is fixedly connected between the bottoms of the four spring rods. A round hole for the punch head is opened in the middle of the pressure plate. A punching hole for the punch head is opened at the top of the fixed punch die.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] In this invention, through the coordinated use of components such as the support plate, transmission mechanism, and adjustment mechanism, the distance between the guide roller and the main roller changes when the thickness of the steel strip changes. At this time, under the action of the adjustment mechanism, the length of the screw sleeve is automatically adjusted according to the distance between the main roller and the guide roller. Driven by the transmission mechanism, the screw sleeve drives the punching moving die to move down through the L-shaped lever to perform punching and shearing processing. When the screw sleeve is long, the punching moving die moves down a long distance, and vice versa. This effectively ensures the gap between the punching fixed die and the punching moving die, improves processing quality, and extends the service life of the die.

[0030] In this invention, the drive rod, adjusting protrusion, and Y-type transmission block are used in combination. The drive rod periodically rotates the adjusting protrusion and cooperates with the Y-type transmission block to switch the transmission state of the main roller. By controlling the distance between the moving protrusion and the fixed protrusion, the cycle of the Y-type transmission block switching the transmission of the main roller can be controlled, the length of the steel belt conveyor can be changed, and the steel belt conveying distance can be quickly adjusted. Attached Figure Description

[0031] Figure 1 This is a perspective view of the support plate and the punching die of the present invention;

[0032] Figure 2This is a cross-sectional view of the main guide roller and the guide roller at a partial position according to the present invention;

[0033] Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0034] Figure 4 This is a cross-sectional view of a portion of the gear rod and support plate of the present invention;

[0035] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point B;

[0036] Figure 6 This is a cross-sectional view of a partial location of the screw sleeve rod of the present invention;

[0037] Figure 7 For the present invention Figure 6 Enlarged view of the structure at point C;

[0038] Figure 8 This is a cross-sectional view of a portion of the gear rod and adjusting protrusion of the present invention;

[0039] Figure 9 This is a perspective view of a portion of the ring and gear shaft of the present invention;

[0040] Figure 10 This is a cross-sectional view of a portion of the main roller and drive rod of the present invention;

[0041] Figure 11 This is a perspective view of the driven hinge rod and adjusting tooth plate of the present invention.

[0042] In the diagram: 1. Machine tool bracket; 2. Support plate; 3. Fixed punching die; 4. Moving punching die; 5. Transmission mechanism; 501. Transmission motor; 502. Drive rod; 503. Main guide roller; 504. Driven guide roller; 505. Gear rod; 506. Transmission protrusion; 507. Screw sleeve rod; 508. L-shaped lever; 509. Adjusting protrusion; 5091. Ring; 5092. Moving protrusion ring; 5093. Fixed protrusion; 510. Bevel gear sleeve; 511. Bevel gear groove; 512. Y-shaped transmission block; 6. Adjustment mechanism; 601. Active hinge rod; 602. Driven hinge rod; 603. Adjusting gear plate; 604. Vertical groove; 605. Compression spring. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figures 1 to 11 The present invention provides a technical solution: a steel strip shearing and punching device, comprising: a machine tool support 1, support plates 2 fixedly connected to both the front and rear sides of the machine tool support 1, a punching fixed die 3 fixedly connected to the right side of the machine tool support 1, and a punching moving die 4 that cooperates with the punching fixed die 3 movably connected between the two support plates 2.

[0045] It also includes: a transmission mechanism 5, which is movably connected between the left sides of the two support plates 2, and the right end of the transmission mechanism 5 is movably connected to the upper part of the punching moving die 4. The transmission mechanism 5 is used to drive the steel strip to transport and to perform shearing and punching processing.

[0046] The middle of the support plate 2 is movably connected to an adjustment mechanism 6 that cooperates with the transmission mechanism 5. The adjustment mechanism 6 is used to automatically adjust the gap of the punching die according to the thickness of the steel strip.

[0047] In this embodiment, as Figures 1 to 11 As shown, the transmission mechanism 5 includes a drive motor 501, which is fixedly connected to the surface of the front support plate 2. A drive rod 502 is rotatably connected between the left sides of the two support plates 2. A main guide roller 503 is rotatably connected to the middle of the drive rod 502. A secondary guide roller 504, which cooperates with the main guide roller 503, is movably connected between the upper parts of the two support plates 2. It should be noted that a mounting bearing is fixedly connected between the outer ring of the drive rod 502 and the inner ring of the main guide roller 503 to ensure that the main guide roller 503 is stably positioned in the middle of the drive rod 502. Both the main guide roller 503 and the secondary guide roller 504 are anti-slip rollers to ensure the stability of the conveying steel belt.

[0048] A gear rod 505 that works with the drive rod 502 is rotatably connected to the middle of the support plate 2. One end of the gear rod 505 passes through the support plate 2 and is fixedly sleeved with a transmission protrusion 506. A threaded sleeve rod 507 that works with the transmission protrusion 506 is vertically slidably arranged on the top of the support plate 2. The lower part of the threaded sleeve rod 507 is movably connected to the adjustment mechanism 6. An L-shaped lever 508 is hinged to the upper part of the threaded sleeve rod 507. The middle part of the L-shaped lever 508 is rotatably connected to the surface of the support plate 2. The upper part of the L-shaped lever 508 is hinged to the upper part of the punching moving die 4. It should be noted that: the threaded sleeve rod 507 is L-shaped and consists of a threaded sleeve and a threaded rod. The threaded rod is rotatably connected to the lower part of the threaded sleeve. When the lower part of the threaded sleeve rod 507 meshes with the surface of the adjusting mechanism 6, the threaded sleeve rod 507 can shorten or lengthen. When the drive motor 501 drives the gear rod 505 to rotate through the drive rod 502, the gear rod 505 pushes the threaded sleeve rod 507 upward through the transmission protrusion 506. At this time, the threaded sleeve rod 507 drives the L-shaped lever 508 to flip. The L-shaped lever 508 drives the punching moving die 4 on the support plate 2 to move downward and cooperate with the punching fixed die 3 to perform punching and shearing processing. When the threaded sleeve rod 507 is long, the distance that the punching moving die 4 moves downward is long when the threaded sleeve rod 507 cooperates with the L-shaped lever 508. When the threaded sleeve rod 507 is short, the distance that the punching moving die 4 moves downward is short when the threaded sleeve rod 507 cooperates with the L-shaped lever 508, thereby automatically adjusting the die processing gap.

[0049] An adjusting protrusion 509 is fixedly and movably connected to the end of the gear rod 505. A bevel sleeve 510 is slidably disposed on the surface of the drive rod 502. A bevel groove 511 that mates with the bevel sleeve 510 is opened at the end of the main roller 503. A Y-shaped transmission block 512 is movably connected to the surface of the bevel sleeve 510. One end of the Y-shaped transmission block 512 overlaps with the side wall of the adjusting protrusion 509. It should be noted that when the gear rod 505, carrying the transmission protrusion 506, contacts the threaded sleeve rod 507, the gear rod 505 also carries the adjusting protrusion 509 to contact the Y-shaped transmission block 512. This causes the Y-shaped transmission block 512 to move towards the drive rod 502 after being pressed. At this time, the Y-shaped transmission block 512, carrying the bevel sleeve 510, moves out of the bevel groove 511 of the main roller 503. During the punching and shearing process of the mold, the main roller 503 and the steel belt are disengaged from the transmission and conveying state.

[0050] In this embodiment, as Figures 1 to 11 As shown, a spur gear is fixedly sleeved on the rotating end of the drive motor 501, and drive gears are fixedly sleeved on both ends of the drive rod 502. The spur gear meshes with the side wall of the drive gear on the same side, and the side wall of the drive gear meshes with the side wall of the adjacent gear rod 505. It should be noted that the drive gear and gear rod 505 are configured as large and small gears. The gear rod 505 rotates only once after the drive gear rotates several times, ensuring that the steel belt is conveyed at a fixed distance for a certain distance before punching and shearing processing.

[0051] The drive rod 502 has a groove on its surface. A slider is fixedly connected to the inner wall of the bevel sleeve 510. The bevel sleeve 510 is slidably disposed inside the groove via the slider. A connecting bearing is fixedly sleeved on the outer ring of the bevel sleeve 510. Connecting pins are symmetrically fixedly connected to the outer ring of the connecting bearing. The surface of the Y-shaped transmission block 512 has symmetrical connecting grooves. Two connecting pins are slidably disposed inside the two connecting grooves respectively. It should be noted that when the bevel sleeve 510 is engaged with the bevel groove 511, the drive rod 502 can drive the main roller 503 to rotate synchronously through the bevel sleeve 510. Under the action of the connecting bearing, the connecting pins on the surface of the bevel sleeve 510 will not rotate with it, thus avoiding interference between the connecting pins and the Y-shaped transmission block 512 after rotation.

[0052] A support frame is slidably mounted in the middle of the Y-shaped transmission block 512. The bottom of the support frame is fixedly connected to the top of the machine tool bracket 1. A restoring spring that mates with the support frame is movably sleeved on the surface of the Y-shaped transmission block 512. It should be noted that the elasticity of the restoring spring can drive the Y-shaped transmission block 512, along with the bevel gear sleeve 510, to insert into the inside of the bevel gear groove 511.

[0053] In this embodiment, as Figures 1 to 11 As shown, a guide rod is fixedly connected to the top of the support plate 2, and a connecting block is movably sleeved on the surface of the guide rod. One end of the connecting block is fixedly connected to the upper part of the threaded sleeve rod 507, and a compression spring that cooperates with the connecting block is movably sleeved on the upper part of the guide rod. It should be noted that when the transmission protrusion 506 presses against the bottom of the threaded sleeve rod 507, the threaded sleeve rod 507 slides upward along the guide rod track through the connecting block.

[0054] Both ends of the L-shaped lever 508 are provided with waist-shaped grooves, and one end of the L-shaped lever 508 is movably connected to the upper part of the pressing screw rod 507 through the waist-shaped groove.

[0055] A crossbar is fixedly connected to the upper part of the punching die 4, and the other end of the L-shaped lever 508 is movably connected to the end of the crossbar through a waist-shaped groove. It should be noted that a guide groove is provided on the upper right side of the support plate 2, and the crossbar is slidably disposed inside the guide groove. A guide spring is fixedly connected to the inner bottom surface of the guide groove, and an arc-shaped pad is fixedly connected to the top of the guide spring. The top of the arc-shaped pad overlaps the bottom of the crossbar, and the guide spring can move the crossbar and the punching die 4 back to their original position and move upward.

[0056] In this embodiment, as Figures 1 to 11As shown, the adjusting protrusion 509 consists of a circular ring 5091, a movable protrusion 5092, and a fixed protrusion 5093. The circular ring 5091 is fixedly connected to the end of the gear rod 505, the fixed protrusion 5093 is fixedly connected to the outer ring of the circular ring 5091, and the movable protrusion 5092 is rotatably disposed on the outer ring of the circular ring 5091. It should be noted that a limit screw is threaded onto the surface of the movable protrusion 5092, and an arc-shaped limit groove is formed on the surface of the fixed protrusion 5093 to cooperate with the limit screw. When the distance between the movable protrusion 5092 and the fixed protrusion 5093 is adjusted, the end of the limit screw is pressed against the inner wall of the arc-shaped limit groove by rotating the limit screw, restricting the movement of the movable protrusion 5092, thereby changing the contact time between the adjusting protrusion 509 and the Y-shaped transmission block 512, controlling the rotation cycle of the main roller 503, and changing the length of the periodic conveying of the steel belt.

[0057] In this embodiment, as Figures 1 to 11 As shown, the adjusting mechanism 6 includes an active hinge rod 601, which is rotatably connected to the end of the driven guide roller 504. A driven hinge rod 602 is rotatably connected to the end of the drive rod 502. One end of the active hinge rod 601 is hinged to the surface of an adjacent driven hinge rod 602. An adjusting toothed plate 603 is slidably disposed in the middle of the driven hinge rod 602, and is slidably disposed on the surface of the support plate 2. The sidewall of the adjusting toothed plate 603 meshes with the lower part of the threaded sleeve rod 507 on the same side. It should be noted that a positioning bearing is fixedly connected between the active hinge rod and the end of the driven guide roller, and a positioning bearing is fixedly connected between the driven hinge rod and the end of the drive rod, so that the corresponding active and driven hinge rods will not rotate during the rotation of the driven guide roller and the drive rod, thus avoiding interference.

[0058] The upper part of the support plate 2 is provided with a vertical groove 604, and the guide roller 504 is slidably disposed inside the vertical groove 604. A compression spring 605 is fixedly connected between the top of the guide roller 504 and the inner top surface of the vertical groove 604. It should be noted that: a positioning sleeve is rotatably connected to the end of the guide roller 504, and a positioning rod is fixedly connected to the top of the positioning sleeve. The positioning rod is movably inserted through the top of the vertical groove 604, and a compression spring 605 is movably sleeved on the upper part of the positioning rod. The compression spring 605 makes the guide roller 504 stably press against the top of the steel strip. When the thickness of the steel strip increases, the guide roller 504 rises inside the vertical groove 604. At this time, the guide roller 504 pulls the driven hinge rod 602 upward at the end position of the drive rod 502 through the active hinge rod 601. The deflected driven hinge rod 602 then moves the hinged adjusting tooth plate 603 horizontally on the side wall of the support plate 2. The adjusting tooth plate 603 meshes with the lower part of the threaded sleeve rod 507, thereby changing the length of the threaded sleeve rod 507 and synchronously adjusting the downward position of the punching moving die 4.

[0059] In this embodiment, as Figures 1 to 11As shown, the driven hinge rod 602 has a main hinge groove at its top, and the driven hinge rod 602 is hinged to the end of the driving hinge rod 601 through the main hinge groove.

[0060] The driven hinge rod 602 has a driven hinge groove in the middle, the end of the adjusting tooth plate 603 is fixedly connected to a moving block, the middle of the support plate 2 has a moving groove in the middle, the moving block is slidably disposed inside the corresponding moving groove, and one end of the moving block is slidably disposed inside the adjacent driven hinge groove.

[0061] In this embodiment, as Figures 1 to 11 As shown, a shearing blade is fixedly connected to the right side of the punching moving die 4, and a punching head is fixedly connected to the middle position of the bottom of the punching moving die 4.

[0062] Spring rods are fixedly connected to all four sides of the bottom of the moving punch 4. A pressure plate is fixedly connected between the bottoms of the four spring rods. A round hole for the punch head is opened in the middle of the pressure plate. A punching hole for the punch head is opened on the top of the fixed punch 3. It should be noted that a discharge chute for the punching hole is opened in the middle of the fixed punch 3 to discharge punching waste.

[0063] The method of use and advantages of this invention: The working process of this steel strip shearing and punching device is as follows:

[0064] like Figures 1 to 11 As shown, when in use, the drive motor 501 is started, and the spur gear at the movable end of the drive motor 501 meshes with the drive gear at the end of the drive rod 502, so that the two ends of the drive rod 502 mesh with the corresponding gear rod 505 through the drive gear.

[0065] During the rotation of the drive rod 502, the bevel sleeve 510 and the bevel groove 511 cooperate to drive the main roller 503 to rotate synchronously, so that the steel strip between the main roller 503 and the guide roller 504 is conveyed to the top position of the punching die 3. Through the cooperation of the large and small gears of the drive gear and the gear rod 505, the drive rod 502 rotates several times and conveys the steel strip at a fixed distance. Then, the adjusting protrusion 509 on the gear rod 505 contacts the end of the Y-type transmission block 512, so that the Y-type transmission block 512 moves towards the drive rod 502. At this time, the connecting groove on the surface of the Y-type transmission block 512 cooperates with the connecting pin on the surface of the bevel sleeve 510 to slide. The Y-type transmission block 512 carries the bevel sleeve 510 to slide in the groove on the surface of the drive rod 502 and disengage from the bevel groove 511. At this time, the main roller 503 and the guide roller 504 stop rotating, and the conveying of the steel strip is released.

[0066] At the same time, the continuously rotating gear rod 505, along with the transmission protrusion 506, presses against the lower part of the threaded sleeve rod 507, causing the threaded sleeve rod 507 to rotate on the surface of the support plate 2 along with the L-shaped lever 508. Through the L-shaped lever 508, the hinged punching moving die 4 moves down between the two support plates 2. First, the pressure plate at the bottom of the punching moving die 4 presses the steel strip tightly. Then, the downward-moving punching moving die 4 cuts and punches the steel strip after it has moved at a fixed distance through the punching head and the shearing blade.

[0067] When the continuously rotating gear rod 505, along with the transmission protrusion 506, disengages from the threaded sleeve rod 507, the compression spring moves the threaded sleeve rod 507 downwards to reset. At this time, the L-shaped lever 508 resets and flips, moving the punching die 4 upwards to return to its initial state. Simultaneously, the gear rod 505, along with the adjusting protrusion 509, releases its pressure on the Y-shaped transmission block 512, causing the reset spring to move the Y-shaped transmission block 512 back to its reset position. At this time, the Y-shaped transmission block 512 drives the bevel sleeve 510 to move towards the bevel groove 511 on the side wall of the main roller 503, causing the drive rod 502 to rotate the main roller 503 again, thus conveying the steel strip at a fixed distance.

[0068] As the thickness of the steel strip conveyed between the main guide roller 503 and the secondary guide roller 504 increases, the secondary guide roller 504 moves upward along the vertical groove 604 on the surface of the support plate 2. At this time, the end of the secondary guide roller 504 moves upward synchronously with the active hinge rod 601, causing the active hinge rod 601 to pull the hinged driven hinge rod 602 upward and flip. The driven hinge rod 602 slides through the hinge groove and the moving block, causing the moving block to translate along the moving groove trajectory on the side wall of the support plate 2. The moving block, along with the adjusting tooth plate 603, engages with the lower part of the screw sleeve rod 507, causing the lower part of the screw sleeve rod 507 to spiral upward, shortening the screw sleeve rod 507. The length of 07 is such that when the gear rod 505, carrying the transmission protrusion 506, rotates again to the lower position of the threaded sleeve rod 507 and drives the threaded sleeve rod 507 to rise, the angle at which the shortened threaded sleeve rod 507 drives the L-shaped lever 508 to flip changes. At this time, the distance that the L-shaped lever 508 carries the punching moving die 4 downward is shortened. This avoids the situation where the gap between the punching moving die 4 and the punching fixed die 3 becomes too small after the steel strip thickness increases, which would lead to accelerated die wear and affect the service life. By changing the steel strip thickness, the gap between the punching fixed die 3 and the punching moving die 4 can be automatically adjusted, thereby improving the processing quality.

[0069] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel strip shearing and punching device, comprising: Machine tool bracket (1), with support plates (2) fixedly connected to both the front and rear sides of the machine tool bracket (1), and a punching fixed die (3) fixedly connected to the right side of the machine tool bracket (1), and a punching moving die (4) that cooperates with the punching fixed die (3) is movably connected between the two support plates (2). The feature is that it further includes: a transmission mechanism (5), which is movably connected between the left sides of the two support plates (2), and the right end of the transmission mechanism (5) is movably connected to the upper part of the punching moving die (4). The transmission mechanism (5) is used to drive the steel strip to transport and to perform shearing and punching processing. The support plate (2) is provided with an adjustment mechanism (6) in the middle, which works in conjunction with the transmission mechanism (5) to automatically adjust the gap of the punching die according to the thickness of the steel strip; The transmission mechanism (5) includes: a transmission motor (501) fixed to the surface of the front support plate (2); The drive rod (502) is rotatably connected between the left sides of the two support plates (2), and the main guide roller (503) is provided in the middle. From the guide roller (504), it is movably connected to the upper part of the two support plates (2) and cooperates with the main roller (503) to clamp the steel strip; The gear rod (505) meshes with the drive rod (502) for transmission, and the surface is provided with transmission protrusions (506). The screw rod (507) is vertically slidably set on the top of the support plate (2), the lower part is connected to the adjustment mechanism (6), and the upper part is hinged to the punching moving die (4) through the L-shaped lever (508); An adjusting protrusion (509) is movably connected to the end of a gear rod (505). A bevel sleeve (510) is slidably provided on the surface of the drive rod (502). A bevel groove (511) that mates with the bevel sleeve (510) is opened at the end of the main roller (503). A Y-shaped transmission block (512) is movably connected to the surface of the bevel sleeve (510), and one end of the Y-shaped transmission block (512) overlaps with the side wall of the adjusting protrusion (509). The rotating end of the drive motor (501) is fixedly sleeved with a spur gear, and both ends of the drive rod (502) are fixedly sleeved with drive gears. The spur gear meshes with the side wall of the drive gear on the same side, and the side wall of the drive gear meshes with the side wall of the adjacent gear rod (505). The drive rod (502) has a groove on its surface. A slider is fixedly connected to the inner wall of the bevel sleeve (510). The bevel sleeve (510) is slidably disposed inside the groove through the slider. A connecting bearing is fixedly sleeved on the outer ring of the bevel sleeve (510). A connecting pin is symmetrically fixedly connected to the outer ring of the connecting bearing. A connecting groove is symmetrically opened on the surface of the Y-shaped transmission block (512). The two connecting pins are slidably disposed inside the two connecting grooves respectively. A support frame is slidably provided in the middle of the Y-shaped transmission block (512), and the bottom of the support frame is fixedly connected to the top of the machine tool bracket (1). A restoring spring that cooperates with the support frame is movably sleeved on the surface of the Y-shaped transmission block (512).

2. The steel strip shearing and punching device according to claim 1, characterized in that: The top of the support plate (2) is fixedly connected to a guide rod, and a connecting block is movably sleeved on the surface of the guide rod. One end of the connecting block is fixedly connected to the upper part of the threaded rod (507), and a compression spring that cooperates with the connecting block is movably sleeved on the upper part of the guide rod. Both ends of the L-shaped lever (508) are provided with waist-shaped grooves, and one end of the L-shaped lever (508) is movably connected to the upper part of the threaded rod (507) through the waist-shaped groove; A crossbar is fixedly connected to the upper part of the punching die (4), and the other end of the L-shaped lever (508) is movably connected to the end of the crossbar through a waist-shaped groove.

3. The steel strip shearing and punching device according to claim 2, characterized in that: The adjusting protrusion (509) is composed of a circular ring (5091), a movable protrusion ring (5092), and a fixed protrusion (5093). The circular ring (5091) is fixedly connected to the end of the gear rod (505). The fixed protrusion (5093) is fixedly connected to the outer ring of the circular ring (5091). The movable protrusion ring (5092) is rotatably disposed on the outer ring of the circular ring (5091).

4. The steel strip shearing and punching device according to claim 3, characterized in that: The adjustment mechanism (6) includes: an active hinge rod (601) connected to the end of the guide roller (504); Driven hinge rod (602) is connected to the end of drive rod (502); The adjusting toothed plate (603) is slidably set on the surface of the support plate (2) and meshes with the lower part of the threaded rod (507); Vertical groove (604) and compression spring (605) are used for elastic reset from guide roller (504).

5. The steel strip shearing and punching device according to claim 4, characterized in that: The driven hinge rod (602) has a main hinge groove at its top, and the driven hinge rod (602) is hinged to the end of the driving hinge rod (601) through the main hinge groove. The driven hinge rod (602) has a driven hinge groove in the middle, and a moving block is fixedly connected to the end of the adjusting tooth plate (603). The support plate (2) has a moving groove in the middle. The moving block is slidably disposed inside the corresponding moving groove, and one end of the moving block is slidably disposed inside the adjacent driven hinge groove.

6. The steel strip shearing and punching device according to claim 5, characterized in that: A shearing blade is fixedly connected to the right side of the punching moving die (4), and a punching head is fixedly connected to the middle position of the bottom of the punching moving die (4). The bottom of the punching moving die (4) is fixedly connected with spring rods around its perimeter. A pressure plate is fixedly connected between the bottoms of the four spring rods. A round hole that matches the punching head is opened in the middle of the pressure plate. A punching hole that matches the punching head is opened on the top of the punching fixed die (3).

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