Punching device for steel sling of trolley

Abstract

The punching device comprises a die, a steel belt hole is formed in the die, a limiting mechanism is arranged on the die, a punch is slidably connected to the interior of the die, the upper end of the punch is fixedly connected with a connecting plate, a spring is arranged on the outer side of the punch, and the upper end of the connecting plate is fixedly connected with the lower end of the connecting plate. One end of the spring is fixedly connected with the die, the other end of the spring is fixedly connected with the connecting plate, and a tensioning mechanism is arranged on the die. The invention relates to a punching device for a steel lifting belt of a trolley. The punching device has the characteristics that steel belts with different widths can be conveniently clamped, and the punching positions of the steel belts are not accurate enough.

Description

Technical Field

[0001] The present invention belongs to the technical field of punching devices, and specifically relates to a punching device for steel slings of trolleys. Background Art

[0002] The steel EMS trolley slings purchased for the logistics of all-steel tire embryos are shipped in whole rolls. After returning to the warehouse, they need to be cut and punched by oneself. Since the installation hole positions at the starting position of the sling reel are fixed and there is no special punching tool, it is easy to cause misalignment of the installation holes, resulting in inability to install or even scrapping of the sling. After retrieval, the utility model patent with the publication number CN213944516U discloses a steel strip punching machine, which includes a bracket and a punching machine body, and includes a belt pressing device. The belt pressing device is located at the feeding end of the punching machine body. The belt pressing device includes a connecting piece and a belt pressing plate. One end of the connecting piece is connected to the bracket, and the other end is connected to the belt pressing plate. The length direction of the belt pressing plate is perpendicular to the conveying direction of the steel strip; this application has the effect of reducing the warping phenomenon of the steel strip when it enters the punching machine. However, there are still some deficiencies in the use of this device: the device is not convenient for clamping and limiting steel strips with different widths. At the same time, the coiling of the steel strip will affect the punching position accuracy of the steel strip. Therefore, improvement is needed. Summary of the Invention

[0003] The purpose of the present invention is to provide a punching device for steel slings of trolleys to solve the problems mentioned in the background art.

[0004] To solve the above problems, the present invention provides the following technical solutions:

[0005] A punching device for steel slings of trolleys, including a die. A steel strip hole is opened inside the die. A limiting mechanism is arranged on the die. A punch is slidably connected inside the die. A connecting plate is fixedly connected to the upper end of the punch. A spring is arranged outside the punch. One end of the spring is fixedly connected to the die, and the other end of the spring is fixedly connected to the connecting plate. A tensioning mechanism is arranged on the die.

[0006] Preferably, the limiting mechanism includes a motor fixedly installed on the surface of the mold. The rotating shaft of the motor penetrates the mold and is rotatably connected to the mold. The end of the rotating shaft of the motor is fixedly connected to a bidirectional screw rod which is rotatably connected to the mold. A slide plate is movably connected to the outside of the bidirectional screw rod, and a top plate is threadedly connected to the outside of the bidirectional screw rod. The top plate is slidably connected to the mold. A compression spring is arranged on the outside of the bidirectional screw rod. A sliding seat is in contact with the surface of the slide plate. A guide rod is fixedly connected to the inside of the mold, and the guide rod is slidably connected to the sliding seat. The upper end of the sliding seat is fixedly connected to a frame, and the lower end of the frame is fixedly connected to a slider which is slidably connected to the mold. A guide roller is arranged inside the frame. By driving the bidirectional screw rod to rotate by the motor and making the top plate perform a threaded movement, the slide plate drives the sliding seat to move, so that the distance between the two frames changes, enabling the guide roller to elastically contact the edges of steel strips with different widths, limiting steel strips with different widths. At the same time, it avoids excessive squeezing force causing the edges of the steel strip to curl.

[0007] Preferably, one end of the compression spring is fixedly connected to the top plate, and the other end of the compression spring is fixedly connected to the slide plate. By arranging the compression spring, the slide plate is elastically squeezed.

[0008] Preferably, a torsion spring is arranged on the outside of the guide rod, and the end of the torsion spring is fixedly connected to the sliding seat. By arranging the torsion spring, the sliding seat is facilitated to reset.

[0009] Preferably, the tensioning mechanism includes a support frame fixedly connected to the outside of the mold. A support roller is arranged at the upper end of the support frame. A sliding frame is slidably connected to the outside of the mold. A lead screw is threadedly connected to the inside of the sliding frame, and the lead screw is connected to the support frame through a bearing. The lower end of the sliding frame is fixedly connected to a support, and a conveying roller is rotatably connected to the inside of the support. A motor is fixedly installed at the front end of the support, and the output end of the motor is fixedly connected to the conveying roller. An adjusting rod is installed in the sliding frame through a bearing, and a screw barrel is threadedly connected to the outside of the adjusting rod. A sliding barrel is slidably connected to the outside of the screw barrel, and the lower end of the sliding barrel is fixedly connected to a mounting seat. A disc spring is arranged inside the sliding barrel. One end of the disc spring is fixedly connected to the screw barrel, and the other end of the disc spring is fixedly connected to the mounting seat. A pressing roller is rotatably connected to the inside of the mounting seat. By rotating the lead screw and making the sliding frame perform a threaded movement, the pressing roller elastically squeezes the steel strip. When the conveying roller rotates driven by the motor and conveys the steel strip, the steel strip can be kept tensioned, so that the steel strip will not bend, ensuring the accuracy of the punching position.

[0010] Preferably, a connecting rod is fixedly connected to the upper end of the support frame, and the connecting rod is slidably connected to the sliding frame. By arranging the connecting rod, the movement of the sliding frame is guided.

[0011] Preferably, a sliding pin is fixedly connected to the surface of the screw barrel, and the sliding pin is slidably connected to the sliding cylinder. By providing the sliding pin, relative rotation between the screw barrel and the sliding cylinder is avoided.

[0012] Preferably, a sliding rod is fixedly connected to the upper end of the mounting seat, and the sliding rod is slidably connected to the sliding frame. By providing the sliding rod, the movement of the mounting seat is guided.

[0013] The beneficial effects of the present invention are as follows: The present invention relates to a punching device for steel slings of a trolley, which has the characteristics of being convenient for clamping steel strips with different widths and having inaccurate punching positions for steel strips. In specific use, compared with the traditional punching device for steel slings of a trolley, the punching device for steel slings of the present trolley has the following beneficial effects:

[0014] First, by driving the bidirectional screw to rotate by a motor and the top plate to perform a threaded movement, the sliding plate drives the sliding seat to move, and then the distance between the two frames changes, so that the guide roller can elastically contact the edges of steel strips with different widths, limit steel strips with different widths, and at the same time, avoid excessive squeezing force causing the edges of the steel strip to curl.

[0015] Second, by rotating the screw rod and the sliding frame to perform a threaded movement, the pressure roller elastically squeezes the steel strip. When the motor drives the conveying roller to rotate and the conveying roller conveys the steel strip, the steel strip can be kept tensioned, so that the steel strip will not bend, ensuring the accuracy of the punching position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present invention is described in detail by the following specific embodiments and accompanying drawings.

[0017] Figure 1 is a three-dimensional view of the overall structure of the present invention;

[0018] Figure 2 is of the present invention Figure 1 die cross-sectional view;

[0019] Figure 3 is of the present invention Figure 2 enlarged view at A in;

[0020] Figure 4 is of the present invention Figure 2 frame schematic diagram in;

[0021] Figure 5 is of the present invention Figure 1 partial structure three-dimensional view;

[0022] Figure 6 is of the present invention Figure 5 sliding cylinder cross-sectional view in.

[0023] In the figure: 1, die; 2, steel strip hole; 3, limiting mechanism; 4, punch; 5, connecting plate; 6, spring; 7, tensioning mechanism; 31, motor; 32, bidirectional screw; 33, sliding plate; 34, top plate; 35, compression spring; 36, sliding seat; 37, guide rod; 38, torsion spring; 39, frame; 310, slider; 311, guide roller; 71, support frame; 72, support roller; 73, sliding frame; 74, lead screw; 75, connecting rod; 76, support; 77, conveyor roller; 78, motor; 79, adjusting rod; 710, screw barrel; 711, sliding barrel; 712, sliding pin; 713, mounting seat; 714, disc spring; 715, pressure roller; 716, sliding rod. Detailed implementation manner

[0024] As Figures 1-6 shown, the following technical solutions are adopted in this detailed implementation manner:

[0025] Example:

[0026] The punching device for the steel sling of the trolley includes a die 1. A steel strip hole 2 is opened inside the die 1. A limiting mechanism 3 is arranged on the die 1. A punch 4 is slidably connected inside the die 1. The upper end of the punch 4 is fixedly connected with a connecting plate 5. A spring 6 is arranged outside the punch 4. One end of the spring 6 is fixedly connected with the die 1, and the other end of the spring 6 is fixedly connected with the connecting plate 5. A tensioning mechanism 7 is arranged on the die 1.

[0027] Among them, the limiting mechanism 3 includes a motor 31. The motor 31 is fixedly installed on the surface of the mold 1. The rotating shaft of the motor 31 penetrates through the mold 1 and is rotatably connected to the mold 1. The end of the rotating shaft of the motor 31 is fixedly connected to a bidirectional screw 32. The bidirectional screw 32 is rotatably connected to the mold 1. A slide plate 33 is movably connected to the outside of the bidirectional screw 32. A top plate 34 is threadedly connected to the outside of the bidirectional screw 32. The top plate 34 is slidably connected to the mold 1. A compression spring 35 is arranged on the outside of the bidirectional screw 32. One end of the compression spring 35 is fixedly connected to the top plate 34, and the other end of the compression spring 35 is fixedly connected to the slide plate 33. By setting the compression spring 35, the slide plate 33 is elastically extruded. A sliding seat 36 is in contact with the surface of the slide plate 33. A guide rod 37 is fixedly connected to the inside of the mold 1. The guide rod 37 is slidably connected to the sliding seat 36. A torsion spring 38 is arranged on the outside of the guide rod 37. The end of the torsion spring 38 is fixedly connected to the sliding seat 36. By setting the torsion spring 38, the sliding seat 36 is convenient for resetting. The upper end of the sliding seat 36 is fixedly connected to a frame 39. The lower end of the frame 39 is fixedly connected to a slider 310. The slider 310 is slidably connected to the mold 1. A guide roller 311 is arranged inside the frame 39. By driving the bidirectional screw 32 to rotate by the motor 31 and the top plate 34 to perform a threaded movement, the slide plate 33 drives the sliding seat 36 to move, and then the distance between the two frames 39 changes, so that the guide roller 311 can elastically contact the edges of steel strips with different widths, limit steel strips with different widths, and at the same time, avoid excessive squeezing force causing the edges of the steel strips to curl.

[0028] Among them, the tensioning mechanism 7 includes a support frame 71, the support frame 71 is fixedly connected to the outside of the mold 1, a support roller 72 is arranged at the upper end of the support frame 71, a sliding frame 73 is slidably connected to the outside of the mold 1, a lead screw 74 is connected inside the sliding frame 73 by threads, the lead screw 74 and the support frame 71 are connected by bearings, a connecting rod 75 is fixedly connected to the upper end of the support frame 71, the connecting rod 75 and the sliding frame 73 are slidably connected, by arranging the connecting rod 75, the movement of the sliding frame 73 is guided, a support 76 is fixedly connected to the lower end of the sliding frame 73, a conveying roller 77 is rotatably connected inside the support 76, a motor 78 is fixedly installed at the front end of the support 76, the output end of the motor 78 and the conveying roller 77 are fixedly connected, an adjusting rod 79 is installed inside the sliding frame 73 by bearings, a screw cylinder 710 is connected to the outside of the adjusting rod 79 by threads, a sliding cylinder 711 is slidably connected to the outside of the screw cylinder 710, a sliding pin 712 is fixedly connected to the surface of the screw cylinder 710, the sliding pin 712 and the sliding cylinder 711 are slidably connected, by arranging the sliding pin 712, the relative rotation of the screw cylinder 710 and the sliding cylinder 711 is avoided, a mounting seat 713 is fixedly connected to the lower end of the sliding cylinder 711, a disc spring 714 is arranged inside the sliding cylinder 711, one end of the disc spring 714 is fixedly connected to the screw cylinder 710, the other end of the disc spring 714 is fixedly connected to the mounting seat 713, a pressing roller 715 is rotatably connected inside the mounting seat 713, a sliding rod 716 is fixedly connected to the upper end of the mounting seat 713, the sliding rod 716 and the sliding frame 73 are slidably connected, by arranging the sliding rod 716, the movement of the mounting seat 713 is guided, by rotating the lead screw 74, the sliding frame 73 makes a threaded movement, so that the pressing roller 715 elastically presses the steel strip, when the motor 78 drives the conveying roller 77 to rotate, and then the conveying roller 77 conveys the steel strip, the steel strip can be kept tensioned, so that the steel strip will not bend, ensuring the accuracy of the punching position.

[0029] The usage state of the present invention is as follows: during use, the steel strip is passed through the die 1, and then the motor 31 is started. The motor 31 drives the bidirectional screw 32 to rotate and the top plate 34 to perform a threaded movement, so that the compression spring 35 squeezes the top plate 34. The top plate 34 drives the slide seat 36 to move, the slide seat 36 drives the frame 39 to move, and the frame 39 drives the guide roller 311 to move, so that the guide roller 311 is elastically in contact with the side of the steel strip. By driving the bidirectional screw 32 to rotate and the top plate 34 to perform a threaded movement by the motor 31, the slide plate 33 drives the slide seat 36 to move, and then the distance between the two frames 39 changes, so that the guide roller 311 can be elastically in contact with the edges of steel strips with different widths to limit steel strips with different widths. At the same time, it avoids the edges of the steel strip from curling due to excessive extrusion force. Then, the screw rod 74 is rotated, and the screw rod 74 rotates and the sliding frame 73 performs a threaded movement, so that the sliding frame 73 moves downward. The sliding frame 73 drives the conveying roller 77 to move downward, so that the conveying roller 77 presses the steel strip against the supporting roller 72. During this process, the sliding frame 73 moves, the sliding frame 73 drives the adjusting rod 79 to move, and the adjusting rod 79 drives the screw cylinder 710 to move, so that the screw cylinder 710 squeezes the disc spring 714, and the disc spring 714 presses the mounting seat 713 downward, so that the pressing roller 715 moves into contact with the steel strip and elastically presses the steel strip against the supporting roller 72. By rotating the screw rod 74 and the sliding frame 73 to perform a threaded movement, the pressing roller 715 elastically squeezes the steel strip. During the process of driving the conveying roller 77 to rotate by the motor 78 and then conveying the steel strip by the conveying roller 77, the steel strip can be kept taut, so that the steel strip will not bend and the accuracy of the punching position is ensured.

[0030] The above shows and describes 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 by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Punching device for steel sling of trolley, comprising a die (1), characterized in that: A steel strip hole (2) is formed inside the mold (1). A limiting mechanism (3) is arranged on the mold (1). A punch (4) is slidably connected inside the mold (1). A connecting plate (5) is fixedly connected to the upper end of the punch (4). A spring (6) is arranged outside the punch (4). One end of the spring (6) is fixedly connected to the mold (1), and the other end of the spring (6) is fixedly connected to the connecting plate (5). A tensioning mechanism (7) is arranged on the mold (1).

2. The punching device for the steel sling of the trolley according to claim 1, wherein: The limiting mechanism (3) includes a motor (31). The motor (31) is fixedly installed on the surface of the mold (1). The rotating shaft of the motor (31) penetrates through the mold (1) and is rotatably connected to the mold (1). The end of the rotating shaft of the motor (31) is fixedly connected to a bidirectional screw (32). The bidirectional screw (32) is rotatably connected to the mold (1). A slide plate (33) is movably connected to the outside of the bidirectional screw (32). A top plate (34) is threadedly connected to the outside of the bidirectional screw (32). The top plate (34) is slidably connected to the mold (1). A compression spring (35) is arranged on the outside of the bidirectional screw (32). A sliding seat (36) is in contact with the surface of the slide plate (33). A guide rod (37) is fixedly connected inside the mold (1). The guide rod (37) is slidably connected to the sliding seat (36). A frame (39) is fixedly connected to the upper end of the sliding seat (36). A slider (310) is fixedly connected to the lower end of the frame (39). The slider (310) is slidably connected to the mold (1). Guide rollers (311) are arranged inside the frame (39).

3. The punching device for the steel sling of the trolley according to claim 2, characterized in that: One end of the compression spring (35) is fixedly connected to the top plate (34), and the other end of the compression spring (35) is fixedly connected to the slide plate (33).

4. The punching device for the steel sling of the trolley according to claim 2, wherein: A torsion spring (38) is arranged on the outside of the guide rod (37). The end of the torsion spring (38) is fixedly connected to the sliding seat (36).

5. The punching device for the steel sling of the trolley according to claim 1, characterized in that: The tensioning mechanism (7) includes a support frame (71), the support frame (71) is fixedly connected to the outer side of the mold (1), a support roller (72) is arranged at the upper end of the support frame (71), a sliding frame (73) is slidably connected to the outer side of the mold (1), a lead screw (74) is connected inside the sliding frame (73) by threads, the lead screw (74) and the support frame (71) are connected by bearings, a support (76) is fixedly connected to the lower end of the sliding frame (73), a conveying roller (77) is rotatably connected inside the support (76), a motor (78) is fixedly installed at the front end of the support (76), the output end of the motor (78) is fixedly connected to the conveying roller (77), a regulating rod (79) is installed inside the sliding frame (73) by bearings, a screw barrel (710) is connected to the outer side of the regulating rod (79) by threads, a sliding barrel (711) is slidably connected to the outer side of the screw barrel (710), a mounting seat (713) is fixedly connected to the lower end of the sliding barrel (711), a disc spring (714) is arranged inside the sliding barrel (711), one end of the disc spring (714) is fixedly connected to the screw barrel (710), the other end of the disc spring (714) is fixedly connected to the mounting seat (713), and a pressing roller (715) is rotatably connected inside the mounting seat (713).

6. The punching device for the steel sling of the trolley according to claim 5, characterized in that: A connecting rod (75) is fixedly connected to the upper end of the support frame (71), and the connecting rod (75) is slidably connected to the sliding frame (73).

7. The punching device for the steel sling of the trolley according to claim 5, characterized in that: A sliding pin (712) is fixedly connected to the surface of the screw barrel (710), and the sliding pin (712) is slidably connected to the sliding barrel (711).

8. The punching device for the steel sling of the trolley according to claim 5, characterized in that: A sliding rod (716) is fixedly connected to the upper end of the mounting seat (713), and the sliding rod (716) is slidably connected to the sliding frame (73).

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