Double-row punching device for coiled steel strip

Abstract

The utility model provides a coiled steel strip double-row punching device which comprises a lower die base and an upper die base which are installed on a machine frame, a punching supporting plate is fixed to the top of the lower die base, a punching through hole penetrating up and down is formed in the punching supporting plate, a punching unit is installed at the bottom of the upper die base, and a waste strip guide frame is installed on the ground in the output direction of the machine frame. A waste belt guide rail is arranged at the top of the waste belt guide frame in the conveying direction of the rack, a fixed hinge plate is arranged at the output end of the upper die base, a belt pushing supporting rod is arranged on the fixed hinge plate, one end of the belt pushing supporting rod is hinged to the fixed hinge plate, and the other end of the belt pushing supporting rod obliquely extends downwards to the position above the waste belt guide rail. A pull rod spring is arranged between the middle of the belt pushing supporting rod and the bottom of the upper die base. By the adoption of the scheme, the structure is reasonable, labor intensity is low, and continuous stamping work can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment accessories, in particular to a double-row punching device for a coiled steel strip. Background Art

[0002] When punching (stamping) steel strips, the mold is usually installed on a punching machine, and the machine tool is stepped on to punch the steel strips through the mold. However, since most steel strips are in roll form, the unwound steel strips need to be punched and pushed manually (pushed one workstation at a time). This method is labor-intensive and difficult to accurately position. It is also impossible to automatically reel after punching. The continuous stamping forming system described in CN201720839042.3 can achieve continuous feeding through a pair of feed rollers, but it cannot achieve accurate positioning when using roller feeding, and the positioning effect is poor. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a double-row punching device for a coiled steel strip, which has a reasonable structure, low labor intensity and can realize continuous punching work.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a double-row punching device for rolled steel strip, which includes a lower die base and an upper die base installed on the frame, wherein a punching support plate is fixed on the top of the lower die base, and a punching through-hole is provided on the punching support plate, and a punching unit is installed on the bottom of the upper die base, and a waste strip guide is installed on the ground in the output direction of the frame, and a waste strip guide rail is provided on the top of the waste strip guide along the conveying direction of the frame, and a fixed hinge plate is provided at the output end of the upper die base, and a push strip support rod is provided on the fixed hinge plate, one end of the push strip support rod is hinged to the fixed hinge plate, and the other end of the push strip support rod extends obliquely downward to above the waste strip guide rail, and a push strip assembly is provided at the extended end of the push strip support rod, and a pull rod spring is provided between the middle of the push strip support rod and the bottom of the upper die base.

[0005] The push belt assembly includes a push rod guide cylinder and a push rod pin, wherein the top of the push rod guide cylinder is hinged with the end portion of the extended end of the push belt support rod, and a limit block matching the push rod guide cylinder is provided on the push belt support rod in the input direction of the frame. The push belt support rod and the upper portion of the push rod pin are movably sleeved in the push rod guide cylinder, and the lower portion of the push rod pin extends downwardly out of the push rod guide cylinder to form a push belt end. The lower portion of the push belt end in the input direction of the frame is provided with an inclined sliding surface, and the bottom of the push rod guide cylinder engages with a limiting ring, and the push rod pin in the push rod guide cylinder expands to form a spring ring, and the top of the spring ring is provided with a push-out spring, and the top of the push-out spring conflicts with the push rod guide cylinder, and the bottom of the push-out spring conflicts with the spring ring.

[0006] The punching unit includes a punching pressure plate and a punching column, wherein guide columns are provided at both ends of the bottom of the upper die base, the punching pressure plate is located below the upper die base, and a guide hole is provided at the edge of the punching pressure plate, the guide hole is fitted with the guide column, and a limit nut is provided at the bottom of the guide column; more than 2 punching columns are fixed on the bottom of the upper die base, and column holes matching the punching columns are provided on the punching pressure plate, and the lower part of the punching column is sleeved in the column hole, and more than 2 reset springs are installed between the top of the punching pressure plate and the bottom of the upper die base, and the reset springs are sleeved on the punching columns.

[0007] The two ends of the bottom of the punching support plate are respectively fixed on the lower die base through corresponding partitions. The number of punching holes is greater than 2, and the positions of the punching holes match the positions of the punching columns.

[0008] A winding frame is provided on the ground outside the waste guide frame, and a winding roller is installed on the winding frame. The winding roller is driven to operate by a corresponding winding motor.

[0009] After adopting the above scheme, the utility model places the end of the steel strip on the punching support plate of the lower die seat, and the corresponding power on the frame (punch press) drives the upper die seat to descend, and the punching column punches the steel strip. When the upper die seat descends (punches), the fixed hinge plate pushes the push strip support rod to move, so that the push rod guide cylinder moves away from the lower die seat. When the push rod guide cylinder moves away from the lower die seat, the steel strip is pushed toward the winding rack through the push rod pin to realize automatic material pushing. The structure after adopting this scheme is reasonable, the labor intensity is low, and continuous punching work can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0011] Figure 2 This is an enlarged schematic diagram of point A of the present invention. DETAILED DESCRIPTION

[0012] The present invention is further described below in conjunction with all the accompanying drawings. The preferred embodiment of the present invention is: The embodiment described in this embodiment with reference to the accompanying drawings is exemplary and is only used to explain this patent, and cannot be understood as a limitation to this patent.

[0013] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0014] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0015] See attached Figure 1 and attached Figure 2 The double-row punching device for a coiled steel strip described in this embodiment includes a lower die base 1 and an upper die base 2 mounted on a frame, wherein a punching support plate 3 is fixed to the top of the lower die base 1, and punching holes 4 are provided on the punching support plate 3 running through the upper and lower parts. The two ends of the bottom of the punching support plate 3 are fixed to the lower die base 1 through corresponding partitions. The number of punching holes 4 is greater than 2, and the positions of the punching holes 4 match the positions of the punching columns 7. A punching unit is installed at the bottom of the upper die base 2, and a waste strip guide 9 is installed on the ground in the output direction of the frame. A waste strip guide rail 12 is provided on the top of the waste strip guide 9 along the conveying direction of the frame. A winding rack 10 is provided on the ground outside the waste guide 9, and a winding roller 11 is installed on the winding rack 10. The winding roller 11 is driven by a corresponding winding motor. A fixed hinge plate 13 is provided at the output end of the upper mold base 2, and a push belt support rod 14 is provided on the fixed hinge plate 13. One end of the push belt support rod 14 is hinged to the fixed hinge plate 13, and the other end of the push belt support rod 14 extends obliquely downward to above the waste belt guide rail 12. A push belt assembly is provided at the extended end of the push belt support rod 14, and a pull rod spring 15 is provided between the middle part of the push belt support rod 14 and the bottom of the upper mold base 2.

[0016] The push belt assembly includes a push rod guide cylinder 16 and a push rod pin 17, wherein the top of the push rod guide cylinder 16 is hinged to the extended end of the push belt support rod 14, and the push belt support rod 14 in the input direction of the frame is provided with a limit block matching the push rod guide cylinder 16, and the push belt support rod 14 and the upper part of the push rod pin 17 are movably sleeved in the push rod guide cylinder 16, and the lower part of the push rod pin 17 extends downwardly out of the push rod guide cylinder 16 to form a push belt end. The lower part of the push belt end in the input direction of the frame is provided with an inclined sliding surface, and the bottom of the push rod guide cylinder 16 engages with a limiting ring, and the push rod pin 17 in the push rod guide cylinder 16 expands to form a spring ring, and a push spring 18 is provided at the top of the spring ring. The top of the push spring 18 conflicts with the push rod guide cylinder 16, and the bottom of the push spring 18 conflicts with the spring ring. The punching unit includes a punching pressure plate 6 and a punching column 7, wherein guide columns 5 are provided at both ends of the bottom of the upper die base 2, the punching pressure plate 6 is located below the upper die base 2, and a guide hole is provided at the edge of the punching pressure plate 6, which is fitted with the guide column 5, and a limiting nut is provided at the bottom of the guide column 5; a number greater than 2 punching columns 7 are fixed to the bottom of the upper die base 2, and a column hole matching the punching column 7 is provided on the punching pressure plate 6, and the lower part of the punching column 7 is sleeved in the column hole, and a number greater than 2 reset springs 8 are installed between the top of the punching pressure plate 6 and the bottom of the upper die base 2, and the reset spring 8 is sleeved on the punching column 7.

[0017] After adopting the above scheme, the upper die seat in the original state is far away from the lower die seat, and the distance between the push rod guide cylinder and the lower die seat is the shortest. First, the end of the steel strip is manually placed on the punching support plate of the lower die seat. After the steel strip enters the die, the corresponding power on the frame (punch press) drives the upper die seat to descend, and the upper die seat drives the punching column and the punching pressure plate to descend. The punching pressure plate first contacts the steel strip and presses the steel strip to achieve positioning. The upper die seat continues to descend, and the punching column punches the steel strip. When punching, the reset spring is compressed. After the punching is completed, the upper die seat rises, driving the punching column and the punching pressure plate upward. When ascending, the reset spring loses its force and expands.

[0018] The punching pressure plate is used to make the lower part of the punching column withdraw from the steel strip. The punching pressure plate also prevents the steel strip from moving up with the punching column after punching. After the first punching is completed, the steel strip is manually pushed backward to make the first punch position move below the push rod guide cylinder, and at the same time, the push rod pin is inserted into the first hole position to complete the first positioning of the continuous punching of this process; after the first positioning is completed, the corresponding power on the frame (punch press) drives the upper die seat to descend again. While the upper die seat is descending (punching), the push belt support rod is pushed to move under the hinged action of the fixed hinge plate, so that the push rod guide cylinder is away from the lower die seat. While the push rod guide cylinder is away from the lower die seat, it pushes the steel strip through the push rod pin. The belt moves toward the winding rack to realize automatic material pushing. After the stamping is completed, when the upper die frame rises, the push belt support rod is driven to move under the hinged action of the fixed hinge plate, so that the push rod guide cylinder moves toward the lower die base. When moving, under the action of the sliding surface of the push rod pin, the lower part of the push rod pin withdraws from the hole position (the push rod spring is compressed). After the upper die base rises to its position, the lower part of the push rod pin just enters the next pushing hole position. When the length of the scrap steel belt after stamping is enough, the scrap steel belt is manually wound on the winding roller first, and then the scrap steel belt is wound by the winding motor. The structure after adopting this solution is reasonable, the labor intensity is low, and continuous stamping work can be realized.

[0019] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any changes made based on the shape and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double-row punching device for coiled steel strip, characterized by: It comprises a lower die base (1) and an upper die base (2) mounted on a frame, and is characterized in that: a punching support plate (3) is fixed on the top of the lower die base (1), a punching through hole (4) passing through the punching support plate (3) is provided, a punching unit is installed on the bottom of the upper die base (2), a waste tape guide frame (9) is installed on the ground in the output direction of the frame, a waste tape guide rail (12) is provided on the top of the waste tape guide frame (9) along the conveying direction of the frame, a fixed hinge plate (13) is provided at the output end of the upper die base (2), a push belt support rod (14) is provided on the fixed hinge plate (13), one end of the push belt support rod (14) is hinged to the fixed hinge plate (13), and the other end of the push belt support rod (14) is tilted downward and extends above the waste tape guide rail (12), a push belt assembly is provided at the extended end of the push belt support rod (14), and a pull rod spring (15) is provided between the middle part of the push belt support rod (14) and the bottom of the upper die base (2).

2. The double-row punching device for coiled steel strip according to claim 1, characterized in that: The push belt assembly includes a push rod guide cylinder (16) and a push rod pin (17), wherein the top of the push rod guide cylinder (16) is hinged with the extended end of the push belt support rod (14), and a limit block matching the push rod guide cylinder (16) is provided on the push belt support rod (14) in the input direction of the frame. The push belt support rod (14) and the upper part of the push rod pin (17) are movably sleeved in the push rod guide cylinder (16), and the lower part of the push rod pin (17) extends downward from the push rod guide cylinder (16) to form a push belt end. The lower part of the push belt end in the input direction of the frame is provided with an inclined sliding surface, the bottom of the push rod guide cylinder (16) engages with a limit ring, and the push rod pin (17) in the push rod guide cylinder (16) expands to form a spring ring, and a push spring (18) is provided at the top of the spring ring. The top of the push spring (18) contacts with the push rod guide cylinder (16), and the bottom of the push spring (18) contacts with the spring ring.

3. The double-row punching device for coiled steel strip according to claim 1, characterized in that: The punching unit includes a punching pressure plate (6) and a punching column (7), wherein guide columns (5) are provided at both ends of the bottom of the upper die base (2), the punching pressure plate (6) is located below the upper die base (2), a guide hole is provided at the edge of the punching pressure plate (6), the guide hole is fitted with the guide column (5), and a limiting nut is provided at the bottom of the guide column (5); more than two punching columns (7) are fixed to the bottom of the upper die base (2), column holes matching the punching columns (7) are provided on the punching pressure plate (6), the lower part of the punching column (7) is fitted in the column hole, and more than two reset springs (8) are installed between the top of the punching pressure plate (6) and the bottom of the upper die base (2), and the reset springs (8) are fitted on the punching columns (7).

4. The double-row punching device for coiled steel strip according to claim 1, characterized in that: The two ends of the bottom of the punching support plate (3) are fixed to the lower die base (1) through corresponding partitions. The number of the punching through holes (4) is greater than 2, and the positions of the punching through holes (4) match the positions of the punching columns (7).

5. The double-row punching device for coiled steel strip according to claim 1, characterized in that: A reeling frame (10) is provided on the ground outside the waste guide frame (9), and a reeling roller (11) is installed on the reeling frame (10). The reeling roller (11) is driven to operate by a corresponding reeling motor.

Images