Steel screen machine

Abstract

The utility model discloses a steel screen machine, which relates to the technical field of steel screen machines, comprises a frame body and a crankshaft connecting rod mechanism arranged on the frame body, and is characterized by further comprising a punching and reducing unit, the punching and reducing unit comprises a first sliding rail, the output end of the crankshaft connecting rod mechanism is connected with the first sliding rail, and the first sliding rail is connected with a second sliding rail. A plurality of punching shear heads are arranged on the first sliding rail in a sliding mode, a plurality of threaded holes are evenly formed in the first sliding rail, and each punching shear head is in threaded connection with the corresponding threaded hole through a positioning screw. The crankshaft connecting rod mechanism drives the first sliding rail to do linear reciprocating motion, so that the first sliding rail drives the punching shear heads to conduct punching shear operation on a steel plate, and when gaps between the punching shear heads need to be adjusted, the positions of the punching shear heads on the first sliding rail are adjusted, the punching shear heads are positioned on the first sliding rail through positioning threads, and therefore the punching shear heads can be adjusted. The gap between the punching shear heads can be adjusted, and the punching shear heads do not need to be replaced again.

Description

Technical Field

[0001] The utility model relates to the technical field of expanded metal machines, and specifically relates to an expanded metal machine. Background Art

[0002] As is well known, an expanded metal machine is a punching and shearing device used to make expanded metal from steel plates. Through the process of pressing or stretching metal to form parts of the required shape, the expanded metal machine is also known as an expanded metal machine, an expanded metal punching and shearing machine, a diamond mesh machine, a stretch mesh machine, a round hole mesh machine, and a special-shaped mesh punching machine. The expanded metal machine is divided into two types: stretch mesh and punching mesh. When the expanded metal machine performs punching and shearing operations on a steel plate, the steel plate is placed on the lower die, and the upper die presses the steel plate, so that mesh holes are punched on the steel plate, and then the production of the expanded metal is completed.

[0003] For example, in the patent with the publication number CN216096043U, the publication date of March 22, 2022, and the name "A Stable Expanded Metal Machine", this patent discloses a stable expanded metal machine, which relates to the technical field of expanded metal machines, including an expanded metal machine body and a feeding roller and a U-shaped frame installed on the expanded metal machine body. One side of the expanded metal machine body is fixedly installed with a U-shaped frame. One side of the U-shaped frame is fixedly connected with two fixing plates, and the fixing plates are fixedly connected to the side of the expanded metal machine body by screws. A plurality of rollers are rotatably connected to the inner side of the U-shaped frame, and the U-shaped frame faces the feeding roller. One side of the U-shaped frame away from the expanded metal machine body is fixedly connected with a bearing plate. One side of the upper surface of the bearing plate is fixedly connected with an upper plate, and both ends of one side of the upper plate are fixedly connected with side plates. A dust blocking mechanism is installed between the two side plates. In this patent, the steel plate enters the feeding roller along the rollers, so that the steel plate can be supported during feeding to prevent the steel plate from being worn by dragging on the ground.

[0004] In the prior art, the punching and shearing heads of the expanded metal machine are fixedly arranged, and the gap between the punching and shearing heads cannot be adjusted. When it is necessary to adjust the distance between the punching and shearing heads, the punching and shearing heads need to be replaced, which increases the punching and shearing time of the punching and shearing heads. Content of the Utility Model

[0005] The purpose of the utility model is to provide an expanded metal machine to solve the above problems in the prior art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an expanded metal machine, including a frame body and a crankshaft connecting rod mechanism, the frame body is provided with a crankshaft connecting rod mechanism, and further includes a punching and shearing unit. The punching and shearing unit includes a first slide rail. The output end of the crankshaft connecting rod mechanism is connected to the first slide rail. A plurality of punching and shearing heads are slidably arranged on the first slide rail. A plurality of threaded holes are evenly arranged on the first slide rail. Each punching and shearing head is threadedly connected to its corresponding threaded hole through a positioning screw rod.

[0007] As described above, the crankshaft connecting rod mechanism includes a first driving member, which is installed on the side wall at the top end of the frame body. The output end of the first driving member is connected to a driving round rod, and two crankshaft bodies are symmetrically installed on the driving round rod. Each of the two crankshaft bodies is rotatably connected to a connecting rod body, and each of the two connecting rod bodies is rotatably connected to a pressing rod. Both of the two pressing rods are slidably installed on the frame body.

[0008] As described above, a second sliding rail is slidably installed at the bottom ends of the two pressing rods together. A flat rod is installed on the second sliding rail, and a first sliding rail is installed at the bottom end of the flat rod.

[0009] As described above, a connecting plate is installed on the side wall of one of the pressing rods, and a second driving member is installed on the connecting plate. The output end of the second driving member is connected to the flat rod.

[0010] As described above, a supporting lower die is installed at the bottom end of the frame body, and the supporting lower die is used in cooperation with each punching and shearing head.

[0011] As described above, it further includes a frame. Two docking plates are symmetrically arranged on the frame in a sliding fit manner. The two docking plates and the frame are threadedly connected through limit screws. An L-shaped groove is formed in each of the two docking plates, and the two L-shaped grooves are butted against each other to form a U-shaped groove.

[0012] As described above, two third sliding rails are symmetrically arranged on the frame. A sliding block is slidably installed on each of the two third sliding rails. A limit groove is formed in each of the two sliding blocks, and a square rod is slidably installed between the limit grooves on the two sliding blocks.

[0013] As described above, a third driving member is arranged on the frame. The output end of the third driving member is installed with a swing rod. A straight groove is formed in the swing rod. A sliding round rod is arranged on the square rod. The sliding round rod penetrates through the straight groove and is slidably installed in the U-shaped groove.

[0014] As described above, the bottom end of the square rod is connected to a punching and shearing unit.

[0015] As described above, a bearing lower die is arranged at the bottom end of the frame.

[0016] The beneficial effects of the present utility model are as follows: The first sliding rail is driven by the crankshaft connecting rod mechanism to perform a linear reciprocating motion, so that the first sliding rail drives the punching and shearing head to perform punching and shearing operations on the steel plate. When it is necessary to adjust the gap between the punching and shearing heads, by adjusting the position of the punching and shearing head on the first sliding rail and then positioning the punching and shearing head on the first sliding rail through the positioning thread, the gap between the punching and shearing heads can be adjusted without replacing the punching and shearing head again, thereby increasing the efficiency of steel plate punching and shearing. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments described in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Partial three-dimensional structure schematic diagram of an embodiment provided by the present utility model;

[0019] Figure 2 For the present utility model Figure 1 Schematic cross-sectional structure diagram of the first perspective;

[0020] Figure 3 For the present utility model Figure 1 Schematic partial cross-sectional structure diagram of the second perspective;

[0021] Figure 4 Three-dimensional structure schematic diagram of another embodiment provided by the present utility model;

[0022] Figure 5 Partial three-dimensional structure schematic diagram of another embodiment provided by the present utility model;

[0023] Figure 6 For the present utility model Figure 4 Schematic cross-sectional structure diagram of the first perspective;

[0024] Figure 7 For the present utility model Figure 4 Schematic cross-sectional structure diagram of the second perspective.

[0025] Explanation of reference numerals:

[0026] 1. Frame body; 2. First slide rail; 3. Punching and shearing head; 4. Threaded hole; 5. Positioning screw rod; 6. First driving member; 7. Active round rod; 8. Crankshaft body; 9. Connecting rod body; 10. Pressing rod; 11. Second slide rail; 12. Flat rod; 13. Connecting plate; 14. Second driving member; 15. Supporting lower die; 16. Machine frame; 17. Docking plate; 19. L-shaped groove; 20. Third slide rail; 21. Sliding block; 22. Limiting groove; 23. Square rod; 24. Third driving member; 25. Swing rod; 26. Straight groove; 28. Bearing lower die; 29. Sliding round rod. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the drawings.

[0028] As Figures 1 to 7As shown in the figure, a steel mesh machine provided by an embodiment of the present utility model includes a frame body 1 and a crankshaft connecting rod mechanism. A crankshaft connecting rod mechanism is arranged on the frame body 1. The steel mesh machine further includes a punching and shearing unit. The punching and shearing unit includes a first slide rail 2. The output end of the crankshaft connecting rod mechanism is connected to the first slide rail 2. A plurality of punching and shearing heads 3 are slidably arranged on the first slide rail 2. A plurality of threaded holes 4 are evenly arranged on the first slide rail 2. Each of the punching and shearing heads 3 is threadedly connected to its corresponding threaded hole 4 through a positioning screw 5.

[0029] Specifically, the frame body 1 is an installation frame for carrying the crankshaft connecting rod mechanism. The crankshaft connecting rod mechanism includes a first driving member 6, and the first driving member 6 is installed on the side wall at the top of the frame body 1. The output end of the first driving member 6 is connected to a driving round rod 7. Two crankshaft bodies 8 are symmetrically installed on the driving round rod 7. A connecting rod body 9 is rotatably connected to each of the two crankshaft bodies 8. A pressing rod 10 is rotatably connected to each of the two connecting rod bodies 9. The two pressing rods 10 are both slidably installed on the frame body 1. A second slide rail 11 is slidably installed at the bottom ends of the two pressing rods 10 together. A flat rod 12 is installed on the second slide rail 11. A first slide rail 2 is installed at the bottom end of the flat rod 12; a connecting plate 13 is installed on the side wall of one of the pressing rods 10. A second driving member 14 is installed on the connecting plate 13. The output end of the second driving member 14 is connected to the flat rod 12;A supporting lower die 15 is installed at the bottom end of the frame body 1. The supporting lower die 15 is used in cooperation with each punching and shearing head 3. An intermittent feeding mechanism is arranged on the frame body 1. The intermittent feeding mechanism feeds the steel plate through the synchronous rotation of two feeding rollers. The way of intermittent feeding of the intermittent feeding mechanism is common knowledge in the art and will not be elaborated. When the intermittent feeding mechanism conveys the steel plate to the appropriate punching and shearing position on the supporting lower die 15, the first driving member 6 (the first driving member 6 is a device whose conveying end can perform forward and reverse movements, preferably a motor) is started to drive the driving round rod 7 to rotate. The driving round rod 7 drives two crankshaft bodies 8 to rotate. The two crankshaft bodies 8 drive the connecting rod bodies 9 connected thereto to rotate. The two connecting rod bodies 9 drive the pressing rods 10 connected thereto to move towards the bottom end of the frame body 1. The two pressing rods 10 synchronously drive the second sliding rail 11 to move towards the bottom end of the frame body 1. During the process of the first driving member 6 driving the driving round rod 7 to rotate continuously, the pressing rod 10 drives the second sliding rail 11 to perform a linear reciprocating pressing movement. The second sliding rail 11 drives the punching and shearing head 3 to perform a linear reciprocating pressing movement. When the pressing rod 10 moves towards the bottom end of the frame body 1 for the first time, the pressing rod 10 and the second sliding rail 11 drive the punching and shearing head 3 to press the steel plate against the supporting lower die 15, so that the punching and shearing head 3 and the supporting lower die 15 perform a punching and shearing operation on the steel plate, so that the steel plate is punched into a triangular hole-shaped structure. Then the pressing rod 10 and the second sliding rail 11 drive the punching and shearing head 3 to separate from the steel plate. Then the intermittent feeding mechanism continues to intermittently convey the steel plate, so that the triangular hole-shaped structure of the steel plate is separated from the supporting lower die 15. The second driving member 14 (the second driving member 14 is a device whose output end can perform a linear reciprocating movement, preferably a hydraulic cylinder) is started to drive the flat rod 12 to slide in the second sliding rail 11. The flat rod 12 drives the first sliding rail 2 and the punching and shearing head 3 to move, so that there is a certain dislocation between the punching and shearing head 3 and the triangular hole-shaped structure. The pressing rod 10 moves towards the bottom end of the frame body 1 again. The pressing rod 10 and the second sliding rail 11 drive the punching and shearing head 3 to press the steel plate against the supporting lower die 15, so that the punching and shearing head 3 and the supporting lower die 15 perform a punching and shearing operation on the steel plate, so that the steel plate is punched into a rhombic hole-shaped structure, realizing the punching and shearing operation on the steel plate. While the punching and shearing head 3 is driven to perform a linear reciprocating movement by the crankshaft connecting rod mechanism, the second driving member 14 drives the punching and shearing head 3 to perform a reciprocating movement through the flat rod 12 and the first sliding rail 2, so that the punching and shearing operation on the steel plate can be continuously performed. Repeat this way until the steel plate is punched into a steel mesh. When it is necessary to adjust the distance between the punching and shearing heads 3, the staff unscrew the positioning screw rod 5 from the threaded hole 4, and then slide the punching and shearing head 3 on the first sliding rail 2 to the appropriate position. Repeat this way to be able to adjust the position of the punching and shearing head 3 on the first sliding rail 2. Then screw the positioning screw rod 5 into the threaded hole 4, and the positioning operation of the punching and shearing head 3 can be realized. The clearance of the threaded hole 4 arranged on the first sliding rail 2 is small, which can adapt to various punching and shearing heads 3 with different widths, improving the adjustment efficiency of the punching and shearing head 3 and eliminating the need to replace the punching and shearing head 3 again, thereby increasing the punching and shearing efficiency of the steel plate.;

[0030] In the prior art, the punching and shearing heads 3 of the expanded metal machine are fixedly arranged, and the gap between the punching and shearing heads 3 cannot be adjusted. When the distance between the punching and shearing heads 3 needs to be adjusted, the punching and shearing heads 3 need to be replaced, which increases the punching and shearing time of the punching and shearing heads 3. By adjusting the position of the punching and shearing heads 3 on the first slide rail 2 and then positioning the punching and shearing heads 3 on the first slide rail 2 through the positioning thread, the gap between the punching and shearing heads 3 can be adjusted without replacing the punching and shearing heads 3 again, thereby increasing the efficiency of steel plate punching and shearing.

[0031] The beneficial effect of this embodiment is that: the first slide rail 2 is driven to perform a linear reciprocating motion by the crank and connecting rod mechanism, so that the first slide rail 2 drives the punching and shearing heads 3 to perform punching and shearing operations on the steel plate. When the gap between the punching and shearing heads 3 needs to be adjusted, by adjusting the position of the punching and shearing heads 3 on the first slide rail 2 and then positioning the punching and shearing heads 3 on the first slide rail 2 through the positioning thread, the gap between the punching and shearing heads 3 can be adjusted without replacing the punching and shearing heads 3 again, thereby increasing the efficiency of steel plate punching and shearing.

[0032] In another embodiment provided by the present utility model, it includes a frame 16. Two docking plates 17 are symmetrically arranged on the frame 16 in a sliding fit manner. The two docking plates 17 are threadedly connected to the frame 16 through limit screws. Each of the two docking plates 17 is provided with an L-shaped groove 19, and the two L-shaped grooves 19 are mutually butted to form a U-shaped groove; two third slide rails 20 are symmetrically arranged on the frame 16. A sliding block 21 is slidably installed on each of the two third slide rails 20. A limit groove 22 is provided on each of the two sliding blocks 21. A square rod 23 is slidably installed between the limit grooves 22 on the two sliding blocks 21; a third driving member 24 is arranged on the frame 16. The third driving member 24 is located at the exact middle position between the two docking plates 17. An oscillating rod 25 is installed at the output end of the third driving member 24. A straight groove 26 is provided on the oscillating rod 25. A sliding round rod 29 is arranged on the square rod 23. The sliding round rod 29 penetrates through the straight groove 26 and is slidably installed in the U-shaped groove; the bottom end of the square rod 23 is connected with a punching and shearing unit; a bearing lower die 28 is arranged at the bottom end of the frame 16.

[0033] Specifically, when the intermittent feeding mechanism conveys the steel plate to a suitable punching and shearing position on the bearing lower die 28, the third driving member 24 (the third driving member 24 is a device whose conveying end can perform forward and reverse movements, preferably a motor) is started to drive the swing rod 25 to rotate clockwise. The swing rod 25 drives the sliding round rod 29 to slide along the track of the U-shaped groove, so that the sliding round rod 29 slides from the horizontal connecting section of an L-shaped groove 19 into the vertical section of the L-shaped groove 19 on one side. During the process of the sliding round rod 29 sliding along the horizontal connecting section of the L-shaped groove 19, the sliding round rod 29 slides along the track of the straight groove 26. The swing rod 25 drives the square rod 23 to slide along the horizontal connecting section of the L-shaped groove 19 through the sliding round rod 29, and the square rod 23 drives the sliding block 21 to slide along the track of the third slide rail 20, so that the square rod 23 drives the punching and shearing unit to slide along the track of the third slide rail 20; during the process of the sliding round rod 29 sliding in the vertical section of an L-shaped groove 19, the swing rod 25 drives the sliding round rod 29 to slide along the track of the vertical section of an L-shaped groove 19 through the straight groove 26, and the sliding round rod 29 drives the square rod 23 to slide towards the bottom end in the limiting groove 22. The square rod 23 drives the punching and shearing unit to press the steel plate tightly against the bearing lower die 28, so that the punching and shearing unit performs punching and shearing operations on the steel plate, so that the punching and shearing unit punches the steel plate into a triangular hole-shaped structure. Then, the third driving member 24 drives the swing rod 25 to rotate counterclockwise. The swing rod 25 drives the sliding round rod 29 to slide in the vertical section of an L-shaped groove 19 through the straight groove 26, so that the sliding round rod 29 drives the square rod 23 and the punching and shearing unit to slide towards the top side of the frame 16;During the process of the sliding round rod 29 sliding to the transverse connection section of the L-shaped groove 19, the intermittent feeding mechanism continues to intermittently convey the steel plate, so that the triangular hole structure of the steel plate is separated from the supporting lower die 15. The square rod 23 drives the sliding block 21 to slide along the track of the third slide rail 20, so that the square rod 23 drives the punching and reducing unit to slide along the track of the third slide rail 20 until the sliding round rod 29 slides into the vertical section of another L-shaped groove 19, and the sliding round rod 29 slides along the track of the vertical section of another L-shaped groove 19. The sliding round rod 29 drives the square rod 23 to slide towards its bottom end in the limiting groove 22. The square rod 23 drives the punching and reducing unit to press the steel plate against the bearing lower die 28, so that the punching and shearing unit performs punching and shearing operations on the steel plate, and the punching and shearing unit punches the steel plate into a rhombic hole structure. Then, the third driving member 24 rotates clockwise again, and the swing rod 25 drives the sliding round rod 29 to slide along the track of the vertical section of another L-shaped groove 19, so that the sliding round rod 29 slides into the transverse connection section of the L-shaped groove 19. Repeating in this way, continuous punching and shearing operations can be performed on the steel plate. Those skilled in the art should know that the gap between the butt plates 17 and the spacing of the transverse connection section of the L-shaped groove 19 are related to the size of the steel mesh holes. In this embodiment, through one third driving member 24, two linear reciprocating motions of the punching and reducing unit can be realized through the square rod 23 (that is, the two-direction linear reciprocating motions of the punching head 3 driven by the first driving member 6 and the second driving member 14), saving the production cost of the steel mesh machine.;

[0034] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A steel plate mesh machine, comprising a frame and a crankshaft connecting rod mechanism, wherein the crankshaft connecting rod mechanism is arranged on the frame, characterized in that: It also includes a reduction unit, which includes a first slide rail. The output end of the crankshaft connecting rod mechanism is connected to the first slide rail. A plurality of punching heads are slidably arranged on the first slide rail. A plurality of threaded holes are evenly arranged on the first slide rail. Each of the punching heads and its corresponding threaded hole is threadedly connected via a positioning screw.

2. The expanded metal machine according to claim 1, characterized in that: The crankshaft connecting rod mechanism includes a first driving member, and the first driving member is installed on the top side wall of the frame body. The output end of the first driving member is connected to an active round rod, and two crankshaft bodies are symmetrically installed on the active round rod. Each of the two crankshaft bodies is rotatably connected to a connecting rod body, and each of the two connecting rod bodies is rotatably connected to a lower pressure rod, and the two lower pressure rods are both slidably installed on the frame body.

3. The expanded metal machine according to claim 2, characterized in that: The bottom ends of the two pressing rods are slidably mounted with a second slide rail, the second slide rail is mounted with a flat rod, and the bottom end of the flat rod is mounted with a first slide rail.

4. The expanded metal machine according to claim 3, characterized in that: A connecting plate is installed on the side wall of one of the lower pressing rods, a second driving member is installed on the connecting plate, and an output end of the second driving member is connected to the flat rod.

5. The expanded metal machine according to claim 1, characterized in that: A supporting lower die is installed at the bottom end of the frame body, and the supporting lower die and each punching and shearing head are used in coordination with each other.

6. The expanded metal machine according to claim 1, characterized in that: It also includes a frame, which is symmetrically provided with two docking plates in a sliding fit manner, the two docking plates are threadedly connected to the frame through a limiting screw, and each of the two docking plates is provided with an L-shaped groove, and the two L-shaped grooves are connected to each other to form a U-shaped groove.

7. The expanded metal machine according to claim 6, characterized in that: Two third slide rails are symmetrically arranged on the frame, a sliding block is slidably installed on each of the two third slide rails, a limiting groove is provided on each of the two sliding blocks, and a square rod is slidably installed between the limiting grooves on the two sliding blocks.

8. The expanded metal machine according to claim 7, characterized in that: The frame is provided with a third driving member, the output end of the third driving member is installed with a swing rod, a straight groove is opened on the swing rod, and a sliding round rod is provided on the square rod. The sliding round rod passes through the straight groove and is slidably installed in the U-shaped groove.

9. The expanded metal machine according to claim 7, characterized in that: The bottom end of the square rod is connected with a reduction unit.

10. The expanded metal machine according to claim 6, characterized in that: A load-bearing lower mold is arranged at the bottom end of the frame.

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