Plate auxiliary feeding mechanism of plate shearing machine

Abstract

A sheet metal auxiliary feeding mechanism for a shearing machine, belonging to the technical field of shearing machine feeding equipment, includes a feeding platform. The feeding platform is equipped with an adjustable-height positioning frame. The positioning frame is used to place the sheet metal to be sheared. Both the front and rear surfaces of the positioning frame have material inlets, the height of which varies with the adjustment of the positioning frame. A through-hole is formed on the surface of the feeding platform, and a pusher is installed within the mounting groove. The pusher is used to push the bottommost sheet metal to the rear. A drive device is fixedly installed on the lower surface of the feeding platform. The drive device drives the pusher to perform a cyclic feeding action. This invention enables "single-time stacking and continuous progressive feeding," eliminating the need for manual or additional secondary feeding mechanisms. A single mechanism completes the feeding operation, reducing production costs while improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of shearing machine feeding equipment, specifically to an auxiliary feeding mechanism for sheet metal in a shearing machine. Background Technology

[0002] As a core piece of equipment in the field of metal sheet processing, shearing machines achieve precise cutting of sheet metal through the reciprocating motion of cutting tools. The efficiency and stability of the feeding process have a direct impact on the overall processing cycle.

[0003] A search revealed that in the relevant field, there is a prior art publication with the publication number CN217618016U entitled "An Automatic Feeding Device for a Shearing Machine". It specifically includes a frame, with four grooves on the inner wall of the frame, a correction mechanism installed inside the frame, and a mounting plate fixed to the side wall of the frame. A motor is fixed to the upper surface of the mounting plate by bolts.

[0004] Although this technology can achieve the correction function before the board is processed, it occupies a large space on the upper part of the board when loading due to its suction cup structure, which makes progressive loading difficult. As a result, after the board is delivered to the position, each section of board needs to be delivered again manually or by an additional pushing mechanism, which not only increases production costs but also reduces production efficiency.

[0005] Therefore, this application provides another auxiliary feeding mechanism for shearing machine plates to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to provide an auxiliary feeding mechanism for sheet metal in a shearing machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A sheet metal auxiliary feeding mechanism for a shearing machine includes a feeding platform. An adjustable-height positioning frame is provided on the feeding platform. The positioning frame is used to place the sheet metal to be sheared. Both the front and rear surfaces of the positioning frame have material inlets, the height of which varies with the adjustment of the positioning frame. A through-hole is formed on the surface of the feeding platform, and a pusher is provided within the mounting groove. The pusher is used to push the bottommost sheet metal to the rear. A drive device is fixedly installed on the lower surface of the feeding platform, and the drive device drives the pusher to perform a cyclic feeding action.

[0008] Preferably, the inner cavity of the positioning frame is the same size as the plate to be cut, and the lower ends of both the left and right sides of the positioning frame penetrate through the upper surface of the loading table. Four threaded rods are fixedly installed on the upper surface of the loading platform. The four threaded rods are arranged in a rectangular pattern on the loading platform, and two positioning nuts are screwed onto the outer surface of each threaded rod. Two lugs with through holes are fixedly installed on the left and right surfaces of the positioning frame. The threaded rods pass through the through holes of the corresponding lugs, and the lugs are clamped and fixed between the two positioning nuts.

[0009] Preferably, the drive device includes three bearing seats with bearings and a geared motor. The bearing seats and the geared motor are fixedly installed on the lower surface of the loading platform. A sprocket shaft is rotatably installed between the two rear bearing seats and inside the front bearing seat. The right end of the front sprocket shaft is fixedly connected to the output end of the geared motor. Two sprockets are sleeved on the outer surface of each sprocket shaft, and a transmission chain is sleeved between the two corresponding sprockets.

[0010] Preferably, the pusher includes a U-shaped block, which is vertically fixed between the two transmission chains, and the front surface of the U-shaped block has two adjustment holes. An L-shaped push block is slidably installed inside the U-shaped block. A vertical block and two threaded posts are fixedly installed on the rear surface of the L-shaped push block. The rear surface of the vertical block is in contact with the front surface of the U-shaped block. The two threaded posts pass through corresponding adjustment holes, and a locking nut is screwed onto the outer surface of each threaded post. A washer is installed between the locking nut and the U-shaped block, and the washer is sleeved on the outer surface of the threaded post.

[0011] Preferably, L-shaped plates are fixedly installed at the four corners of the upper surface of the positioning frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention, by setting up a feeding platform with a mounting groove, a positioning frame, a pusher, and a driving device, can use the positioning frame to vertically stack and limit multiple plates, and use the front and rear feed ports to leave a channel for pushing the bottom plate. The pusher is driven by the driving device to circulate and push only the bottom plate to the shearing machine. The upper plate of the stack can fall naturally after the lower plate is pushed, realizing "single stacking and continuous progressive feeding". No manual or additional secondary feeding is required. The feeding operation is realized by a single mechanism, which reduces production costs and improves production efficiency.

[0013] The positioning frame in this invention has an adjustable height via a threaded rod and a positioning nut, allowing the feed inlet height to be adjusted according to the sheet thickness, ensuring that only a single sheet can pass through at a time. The L-shaped pusher block of the pusher component engages with a threaded post via an adjustment hole, allowing the pusher end position to be adjusted vertically to accommodate the pushing requirements of sheets of different thicknesses. There is no need to replace core components due to changes in sheet specifications; multiple processing needs can be met with simple adjustments, reducing equipment replacement and debugging costs and expanding the applicability of the mechanism. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention.

[0015] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the pusher component of this utility model.

[0017] Figure 4 This is a schematic diagram of the drive device of this utility model.

[0018] In the diagram: 1. Feeding platform; 11. Mounting slot; 2. Positioning frame; 21. Material inlet; 22. Ear block; 23. L-shaped plate; 3. Threaded rod; 31. Positioning nut; 4. Pushing component; 41. U-shaped block; 411. Adjustment hole; 42. L-shaped push block; 421. Vertical block; 43. Threaded column; 431. Locking nut; 44. Washer; 5. Drive device; 51. Bearing seat; 52. Sprocket shaft; 53. Sprocket; 54. Transmission chain; 55. Gear motor. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a technical solution: A sheet metal auxiliary feeding mechanism for a shearing machine includes a feeding table 1. The feeding table 1 is provided with an adjustable positioning frame 2. The positioning frame 2 is used to place the sheet metal to be sheared. The front and rear surfaces of the positioning frame 2 are provided with material inlets 21. The height of the material inlets 21 changes with the adjustment of the positioning frame 2. An installation groove 11 is provided through the table surface of the feeding table 1. A pusher 4 is provided in the installation groove 11. The pusher 4 is used to push the bottom sheet metal to the rear. A drive device 5 is fixedly installed on the lower surface of the feeding table 1. The drive device 5 is used to drive the pusher 4 to perform a cyclic feeding action.

[0021] It should be noted that the positioning frame 2 is welded from four plates, and its overall shape is as follows: Figure 1 As shown, during manufacturing, the inner cavity size of the positioning frame 2 needs to be set to the same size as the board to be cut.

[0022] Combination Figure 1As shown, the lower ends of the left and right sides of the positioning frame 2 penetrate the upper surface of the loading platform 1. Four threaded rods 3 are welded and installed on the upper surface of the loading platform 1. The four threaded rods 3 are arranged in a rectangular shape on the loading platform 1, and two positioning nuts 31 are screwed onto the outer surface of each threaded rod 3. Two lugs 22 with through holes are fixedly installed on the left and right surfaces of the positioning frame 2. The threaded rods 3 pass through the through holes of the corresponding lugs 22, and the lugs 22 are clamped and fixed between the two positioning nuts 31.

[0023] In actual production, the position of the positioning frame 2 can be adjusted according to the thickness of the sheet material to be sheared. During adjustment, first loosen the two positioning nuts 31 on the outer surface of the multiple threaded rods 3 in sequence, so that the lug 22 can move freely along the axial direction of the threaded rod 3. Then, manually support the two sides of the positioning frame 2 and slowly push it up and down along the threaded rod 3 to the preset target height (a tape measure or ruler can be used to ensure that the height of the positioning frame 2 is consistent and there is no tilt). After the height is in place, first tighten the positioning nut 31 below the lug 22 so that its upper surface fits tightly with the lower surface of the lug 22, initially supporting the positioning frame 2. Then tighten the positioning nut 31 above the lug 22 so that its lower surface fits tightly with the upper surface of the lug 22. The lug 22 is fixed by the upper and lower positioning nuts 31 together, and finally the positioning frame 2 is stably installed on the threaded rod 3.

[0024] In addition, combined Figure 1 and Figure 4 The drive device 5 includes three bearing seats 51 with bearings and a geared motor 55. The bearing seats 51 and the geared motor 55 are fixedly installed on the lower surface of the loading platform 1. A sprocket shaft 52 is rotatably installed between the two rear bearing seats 51 and inside the front bearing seat 51. The right end of the front sprocket shaft 52 is fixedly connected to the output end of the geared motor 55. Two sprockets 53 are sleeved on the outer surface of the sprocket shaft 52. A transmission chain 54 is sleeved between the two corresponding sprockets 53.

[0025] A stable power is provided by a geared motor 55, which transmits the power to the sprocket 53 on the front sprocket shaft 52. Then, the transmission chain 54 drives the rear sprocket shaft 52 to rotate synchronously, forming a synchronous transmission system. This ensures that when the subsequent drive pusher 4 performs the cyclic feeding action, the power transmission is uniform and stable, avoiding feeding deviation caused by uneven force on one side. At the same time, the multi-point support design of the three bearing seats 51 for the sprocket shaft 52 can improve the stability of the sprocket shaft 52 during rotation and reduce shaking. The symmetrical layout of the double sprockets 53 and the double transmission chains 54 further enhances the load-bearing capacity and reliability of the transmission structure, meeting the needs of continuous cyclic feeding of sheet metal.

[0026] The geared motor 55 needs to be driven at a frequency that matches the shearing frequency of the shearing equipment. The "frequency-driven rotation" of the geared motor 55 essentially controls the speed and rotation cycle of the motor's output shaft to match the shearing rhythm of the shearing machine (e.g., pushing the sheet metal once every three seconds). This can be achieved through the logic of "external control equipment outputting an adjustable frequency signal → driving the motor to rotate at the set frequency → transmitting the signal to the pushing component via the reduction mechanism and transmission system." The core is to use "frequency conversion control" or "pulse control" technology to flexibly adjust the motor speed according to processing requirements while ensuring rotational stability. The method of controlling the motor rotation at a certain frequency is existing technology in the field and will not be elaborated upon here.

[0027] Combination Figure 2 , Figure 3 and Figure 4 As shown, the pusher 4 includes a U-shaped block 41, which is vertically fixed between two transmission chains 54. Two adjustment holes 411 are opened through the front surface of the U-shaped block 41. An L-shaped pusher 42 is slidably installed inside the U-shaped block 41. A vertical block 421 and two threaded posts 43 are fixedly installed on the rear surface of the L-shaped pusher 42. The rear surface of the vertical block 421 is in contact with the front surface of the U-shaped block 41. The two threaded posts 43 pass through the corresponding adjustment holes 411 respectively. Locking nuts 431 are screwed onto the outer surface of the threaded posts 43. Washers 44 are installed between the locking nuts 431 and the U-shaped block 41. The washers 44 are sleeved on the outer surface of the threaded posts 43.

[0028] When the transmission chain 54 moves in a cycle, it can drive the U-shaped block 41 and the L-shaped pusher block 42 to perform a cycle feeding action, so that the L-shaped pusher block 42 contacts the bottom layer of the plate, thereby pushing the bottom layer of the plate backward to complete the feeding work.

[0029] In addition, by using the adjustment hole 411 of the U-shaped block 41 to cooperate with the threaded post 43 of the L-shaped push block 42, after loosening the locking nut 431, the threaded post 43 can slide along the length direction of the adjustment hole 411, driving the L-shaped push block 42 to move up and down in the U-shaped block 41, thereby adjusting the pushing end position of the L-shaped push block 42 to adapt to different thicknesses of the sheet metal to be sheared and improve the versatility of the mechanism.

[0030] Finally, as Figure 1 or Figure 2 As shown, in order to increase the number of boards to be sheared placed inside the positioning frame 2, L-shaped plates 23 are fixedly installed at the four corners of the upper surface of the positioning frame 2. While increasing the number of boards to be sheared, the L-shaped plates 23 around the perimeter can be used to position the boards and ensure the neatness of the stacking.

[0031] Working Principle: Before use, place the auxiliary feeding mechanism of the shearing machine on one side of the feeding end of the shearing machine. During use, stack multiple plates to be sheared in the positioning frame 2. Then, start the drive device 5. The geared motor 55, through the cooperation of the sprocket 53 and the transmission chain 54, drives the pusher 4 to move in a cycle. The U-shaped block 41 and L-shaped pusher 42 of the pusher 4 advance the bottom layer of plates to be sheared to the cutting area of ​​the shearing machine at a certain frequency until the bottom layer of plates is pushed away from the pushing area. The upper plates fall naturally. At this time, the pusher 4 enters the next cycle of pushing operation to deliver the latest fallen plates. During the delivery of new plates, the new plates can push the plates remaining after shearing the previous plates away from the cutting area and drop them to the dropping position. Compared with the existing technology, the entire feeding process of this mechanism can be completed by a single mechanism without the need for manual or additional mechanisms for secondary delivery, which can effectively reduce production costs and improve production efficiency.

Claims

1. A plate auxiliary feeding mechanism of a plate shearing machine, characterized by, The system includes a loading platform (1), on which a positioning frame (2) with adjustable installation height is provided. The positioning frame (2) is used to place the board to be cut. The front and rear surfaces of the positioning frame (2) are provided with material inlets (21). The height of the material inlets (21) varies with the adjustment of the positioning frame (2). An installation groove (11) is provided through the table surface of the loading platform (1). A pusher (4) is provided in the installation groove (11). The pusher (4) is used to push the bottom layer of board to the rear. A drive device (5) is fixedly installed on the lower surface of the loading platform (1). The drive device (5) is used to drive the pusher (4) to perform a cyclic feeding action.

2. The plate auxiliary feeding mechanism of the plate shearing machine according to claim 1, characterized in that: The inner cavity of the positioning frame (2) is the same size as the plate to be cut, and the lower ends of the left and right sides of the positioning frame (2) penetrate the upper surface of the loading platform (1). Four threaded rods (3) are fixedly installed on the upper surface of the loading platform (1). The four threaded rods (3) are arranged in a rectangular shape on the loading platform (1), and two positioning nuts (31) are screwed onto the outer surface of each threaded rod (3). Two ear blocks (22) with through holes are fixedly installed on the left and right surfaces of the positioning frame (2). The threaded rods (3) pass through the through holes of the corresponding ear blocks (22), and the ear blocks (22) are clamped and fixedly installed between the two positioning nuts (31).

3. The plate auxiliary feeding mechanism of the plate shearing machine according to claim 1, characterized in that: The drive device (5) includes three bearing seats (51) with bearings and a geared motor (55). The bearing seats (51) and the geared motor (55) are fixedly installed on the lower surface of the loading platform (1). A sprocket shaft (52) is rotatably installed between the two rear bearing seats (51) and inside the front bearing seat (51). The right end of the front sprocket shaft (52) is fixedly connected to the output end of the geared motor (55). Two sprockets (53) are sleeved on the outer surface of the sprocket shaft (52). A transmission chain (54) is sleeved between the two corresponding sprockets (53).

4. The plate auxiliary feeding mechanism of the plate shearing machine according to claim 3, characterized in that: The pusher (4) includes a U-shaped block (41), which is vertically fixed between the two transmission chains (54), and two adjustment holes (411) are opened through the front surface of the U-shaped block (41). An L-shaped push block (42) is slidably installed inside the U-shaped block (41). A vertical block (421) and two threaded posts (43) are fixedly installed on the rear surface of the L-shaped push block (42). The rear surface of the vertical block (421) is in contact with the front surface of the U-shaped block (41). The two threaded posts (43) pass through the corresponding adjustment holes (411) respectively. A locking nut (431) is screwed onto the outer surface of each threaded post (43). A washer (44) is installed between the locking nut (431) and the U-shaped block (41). The washer (44) is sleeved on the outer surface of the threaded post (43).

5. The auxiliary plate feeding mechanism of the plate shearing machine according to claim 1, characterized in that: L-shaped plates (23) are fixedly installed at the four corners of the upper surface of the positioning frame (2).

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