Pressing plate structure of cold shearing machine

Abstract

The utility model discloses a pressing plate structure of a cold shearing machine, and belongs to the technical field of pressing plates of cold shearing machines. The device mainly comprises a lathe bed; the pressing plate mechanism is arranged on one side of the lathe bed, the pressing plate mechanism is used for pressing and locking a material to be subjected to cold shearing, and the pressing plate mechanism is provided with an upper fixing strip, a lower fixing strip and a lower fixing strip; the air cylinder is hinged to the upper fixing strip and provided with a piston rod arranged downwards, a dustproof sleeve is installed at the lower end of the air cylinder, and the piston rod is connected into the dustproof sleeve in a sliding mode. The pressing plate piece is mounted at the lower end of the piston rod; and the supporting mechanism is arranged on one side of the piston rod. According to the pressing plate structure of the cold shearing machine, the effects of reducing additional mechanical stress borne by the piston rod and preventing the structure from being damaged are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of cold shear press plates, and specifically to a cold shear press plate structure. Background Art

[0002] Cold shears are a type of metal processing equipment used to shear metal sheets, profiles, or other metal materials. Unlike hot shears, cold shears do not require heating the metal during the shearing process, but rely on mechanical force to shear.

[0003] The cold shearing machine's pressure plate structure is used to apply uniform pressure to the material to be cold sheared, fixing it in the cold shearing die to prevent the material from shaking and moving during the cold shearing process, thereby achieving a stable forming effect.

[0004] After searching, for example, the patent with publication number CN220216900U specifically discloses a cold shear steel pressing device, which drives the end of the pressing plate to rotate through a cylinder, so that the pressing plate presses the bar and then performs the shearing work.

[0005] As described in the above patents, most of the pressure plate mechanisms use a cylinder to drive the pressure plate to press and lock the material. However, when the cold shearing machine is in a shutdown state or when the material is changed, the cylinder piston rod is in an extended state for a long time. Over time, it will cause mechanical imbalance of the cylinder, and the cylinder needs to withstand additional mechanical stress and fatigue, resulting in structural damage, thereby affecting the pressing and locking effect of the material and reducing the cold shearing efficiency. Therefore, it is necessary to provide a cold shearing machine pressure plate structure to solve the above problems.

[0006] It should be noted that the above information disclosed in this Background section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute prior art. Summary of the Invention

[0007] Based on the above problems existing in the prior art, the problem to be solved by this application is: to provide a cold shear pressure plate structure, which reduces the additional mechanical stress on the piston rod and prevents structural damage.

[0008] The technical solution adopted by the present application to solve the technical problem is: a cold shear press plate structure, comprising:

[0009] Bed;

[0010] A pressing plate mechanism is provided on one side of the bed and is used to press and lock the material to be cold sheared. The pressing plate mechanism has:

[0011] an upper fixing bar, the upper fixing bar being installed on one side of the bed;

[0012] A cylinder hinged on the upper fixing bar, the cylinder having a downwardly disposed piston rod, a dust cover mounted on the lower end of the cylinder, and the piston rod slidably connected to the dust cover;

[0013] a pressing plate component mounted on the lower end of the piston rod;

[0014] A supporting mechanism is arranged on one side of the piston rod.

[0015] Furthermore, the support mechanism has a first fixed sleeve fixedly mounted on the dust cover, a first movable rod is hingedly connected to one side of the first fixed sleeve, a second movable rod is hingedly connected to one side of the end of the piston rod, and the second movable rod is rotatably connected to the other end of the first movable rod;

[0016] A circular groove is provided on one side of the first movable rod, a rotating shaft is rotatably connected to the center of the circular groove, a ratchet is fixedly installed on the outer side of the rotating shaft, a connecting rod is fixedly installed on the first movable rod, and the connecting rod is fixedly installed in the rotating shaft.

[0017] Furthermore, an adjustment groove is opened on one side of the circular groove, a ratchet is rotatably connected in the adjustment groove, the tooth tip of the ratchet is stuck in the ratchet wheel, and a compression spring is fixedly installed between the side of the ratchet away from the ratchet wheel and the adjustment groove.

[0018] Furthermore, a mounting plate is fixedly installed on the surface of the adjustment groove, an arc groove is fixedly installed on the side of the mounting plate close to the ratchet, baffles are fixedly installed on both sides of one end of the arc groove close to the mounting plate, and a clamping strip is rotatably connected to the ratchet, the clamping strip is located on the outside of the arc groove, and the thickness of the clamping strip is less than the width of the arc groove.

[0019] Furthermore, a lower fixing bar is fixedly installed at the bottom end of one side of the bed, and the pressure plate has a roller rotatably connected to the lower fixing bar. An extension plate is fixedly installed on the side of the roller close to the cylinder, and the other end of the extension plate is rotatably connected to a connecting block, and a second fixing sleeve is fixedly installed on the upper end of the connecting block.

[0020] Furthermore, the end of the piston rod is fixed in the second fixed sleeve, the second movable rod is hinged to the second fixed sleeve, and connecting plates are fixedly installed at both ends of the roller, and the other end of the connecting plate is rotatably connected to the pressure roller.

[0021] The beneficial effect of the present application is that the present application provides a cold shearing machine pressure plate structure, which is provided with a support mechanism and supports the extended piston rod through the engagement of the ratchet and the ratchet teeth, thereby reducing the additional mechanical stress on the piston rod and preventing structural damage, thereby improving the pressing and locking effect of the pressure plate mechanism on the material and improving the cold shearing efficiency.

[0022] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0024] Figure 1 This is an overall schematic diagram of a cold shear press plate structure in this application;

[0025] Figure 2 for Figure 1 A separate schematic diagram of the medium pressure plate mechanism;

[0026] Figure 3 for Figure 2 A magnified schematic diagram of area A in the middle;

[0027] Figure 4 for Figure 3 A magnified schematic diagram of area B in the middle;

[0028] Among them, the reference numerals in the figures are:

[0029] 1. Bed; 11. Control box; 12. Transmission device; 13. Lower scissors; 14. Upper scissors; 15. Lower tool holder;

[0030] 2. Pressing plate mechanism; 21. Upper fixing bar; 22. Cylinder; 221. Dust cover; 23. Piston rod; 24. Pressing plate; 241. Roller; 242. Extension plate; 243. Connecting block; 244. Connecting plate; 245. Pressing roller; 246. Second fixing sleeve; 25. Lower fixing bar;

[0031] 3. Support mechanism; 31. First movable rod; 311. Circular groove; 32. Second movable rod; 33. First fixed sleeve; 34. Ratchet; 35. Rotating shaft; 36. Ratchet; 37. Adjusting groove; 38. Compression spring; 39. Mounting plate; 391. Arc groove; 392. Baffle; 393. Card strip. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0034] like Figure 1 As shown, the present application provides a cold shear plate structure, comprising a bed 1, a lower tool holder 15 is provided at the bottom end of the bed 1, a lower shear 13 is fixedly mounted on the upper end of the lower tool holder 15, and an upper shear 14 is provided on one side above the lower shear 13, and the material is cold sheared by the upper shear 14 and the lower shear 13;

[0035] At the same time, a control box 11 is provided on one side of the bed 1. In this application, a transmission device 12 is provided inside the control box 11 and the bed 1. The transmission device 12 is used to drive the upper scissors 14 to move up and down. It should be noted that the transmission device 12 is a prior art. The transmission device 12 has a high-speed shaft assembly, and the high-speed shaft assembly is equipped with a brake, a clutch, and a flywheel. The high-speed shaft is driven to rotate by a motor, and the transition shaft is driven by gears. The transition shaft drives the crank-connecting rod mechanism, and the shearing action of the upper scissors 14 is realized by the crank-connecting rod mechanism.

[0036] In addition, a pressing plate mechanism 2 is provided on one side of the bed 1, and the pressing plate mechanism 2 is used to press and lock the material to be cold sheared.

[0037] like Figure 2 As shown, the pressing plate mechanism 2 has an upper fixing bar 21 fixed to one side of the bed 1, and a cylinder 22 is hinged on the upper fixing bar 21. The cylinder 22 has a piston rod 23 arranged downward, and a dust cover 221 is fixedly installed on the lower end of the cylinder 22. The piston rod 23 is slidably connected in the dust cover 221, and a pressing plate 24 is provided at the lower end of the piston rod 23. In order to better control the pressing plate 24, a lower fixing bar 25 is fixedly installed at the bottom end of one side of the bed 1, and the lower fixing bar 25 protrudes from the bed 1;

[0038] At the same time, the pressure plate member 24 has a roller 241 rotatably connected to the protruding end of the lower fixed bar 25. An extension plate 242 is fixedly mounted on the side of the roller 241 close to the cylinder 22. The other end of the extension plate 242 is rotatably connected to a connecting block 243. A second fixing sleeve 246 is fixedly mounted on the upper end of the connecting block 243. The end of the piston rod 23 is fixed in the second fixing sleeve 246.

[0039] In addition, connecting plates 244 are fixedly installed at both ends of the roller 241, and the other end of the connecting plate 244 is rotatably connected to the pressure roller 245. Therefore, when the pressure plate mechanism 2 is not in use, the piston rod 23 is in an extended state, and the pressure roller 245 is flush with the roller 241. If the pressure plate mechanism 2 needs to be used, the cylinder 22 is started to retract the piston rod 23. When the piston rod 23 retracts, it will drive the connecting block 243 upward. At the same time, the extension plate 242 moves upward and drives the roller 241 and the connecting plate 244 to rotate on the lower fixed bar 25, so that the pressure roller 245 rotates downward until it is attached to the material to be pressed and locked, preventing the material to be cold sheared from shaking.

[0040] like Figure 2-Figure 3 As shown, a support mechanism 3 is provided on one side of the piston rod 23. The support mechanism 3 has a first fixed sleeve 33 fixedly mounted on the dust cover 221. A first movable rod 31 is hingedly connected to one side of the first fixed sleeve 33. At the same time, a second movable rod 32 is hingedly connected to one side of the second fixed sleeve 246. The second movable rod 32 is rotatably connected to the other end of the first movable rod 31.

[0041] In order to limit the movement of the second movable rod 32 and the first movable rod 31, a circular groove 311 is formed on one side of the first movable rod 31. A rotating shaft 35 is rotatably connected to the center of the circular groove 311. A ratchet 34 is fixedly mounted on the outer side of the rotating shaft 35. At the same time, a connecting rod (not shown in the figure) is fixedly mounted on the second movable rod 32. The connecting rod is fixedly mounted inside the rotating shaft 35. Therefore, when the second movable rod 32 rotates, it drives the rotating shaft 35 and the ratchet 34 to rotate.

[0042] At the same time, an adjustment groove 37 is opened on one side of the circular groove 311, and a ratchet 36 is rotatably connected in the adjustment groove 37. The tooth tip of the ratchet 36 is stuck in the ratchet 34, and a compression spring 38 is fixedly installed between the side of the ratchet 36 away from the ratchet 34 and the adjustment groove 37. Therefore, when the ratchet 34 rotates clockwise, the ratchet 36 will be pushed outward and the compression spring 38 will be squeezed. When the ratchet 34 rotates counterclockwise, it will be blocked by the ratchet 36 and stop rotating.

[0043] like Figure 3-Figure 4 As shown, in order to prevent the first movable rod 31 and the second movable rod 32 from being blocked during movement, a mounting plate 39 is fixedly mounted on the surface of the adjustment slot 37. An arc groove 391 is fixed on the side of the mounting plate 39 close to the ratchet 36. In the present application, the arc groove 391 is arranged in an arc shape with the rotation axis of the ratchet 36 as the center.

[0044] In addition, baffles 392 are fixedly installed on both sides of the arc groove 391 at one end near the mounting plate 39, and a clip 393 is rotatably connected to the ratchet 36. The clip 393 is located on the outside of the arc groove 391, and the thickness of the clip 393 is less than the width of the arc groove 391, so the clip 393 can pass through the baffle 392. Therefore, when the ratchet 34 needs to rotate normally, the operator manually slides the clip 393 toward the mounting plate 39, and drives the ratchet 36 to move at the same time, causing the compression spring 38 to contract until the clip 393 completely passes through the baffle 392. At this time, the clip 393 is manually rotated so that it is stuck on the side of the baffle 392, temporarily fixing the ratchet 36 so that it will not affect the normal rotation of the ratchet 34.

[0045] In summary, when the cold shear is operating normally, the clamping bar 393 is first adjusted to the rear of the baffle 392 so that the ratchet 36 will not be stuck in the ratchet wheel 34, thereby allowing the first movable rod 31 and the second movable rod 32 to rotate normally.

[0046] During cold shearing, the cylinder 22 is driven to drive the piston rod 23 to contract, thereby driving the connecting block 243 and the extension plate 242 upward, causing the pressure roller 245 to move downward, and pressing and locking the material to be cold sheared. When the cold shearing is completed and the material needs to be loaded, the piston rod 23 is driven to extend, thereby driving the connecting block 243 and the extension plate 242 downward, causing the pressure roller 245 to move upward and away from the material to be cold sheared.

[0047] It should be noted that when the piston rod 23 is extended, it will drive the second movable rod 32 to rotate downward, and the ratchet 34 will rotate counterclockwise along with the second movable rod 32.

[0048] Therefore, when the cold shearing machine is in a shutdown state or when the material is being changed, the piston rod 23 is extended and the clamping strip 393 is located on the side of the baffle 392. Therefore, the operator manually slides the clamping strip 393 toward the mounting plate 39 and rotates it, so that the clamping strip 393 is placed horizontally and slides toward the ratchet 34 through the baffle 392. At this time, the compression spring 38 resets and rebounds to clamp the ratchet 36, thereby supporting the extended piston rod 23 through the engagement of the ratchet 34 and the ratchet 36, reducing the additional mechanical stress on the piston rod 23 and preventing structural damage. Therefore, the pressing and locking effect of the pressure plate mechanism 2 on the material is improved, thereby improving the cold shearing efficiency.

[0049] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A cold shear plate structure, characterized in that: include: Bed (1); A pressing plate mechanism (2) is provided on one side of the bed (1), and is used for pressing and locking the material to be cold-sheared. The pressing plate mechanism (2) has: An upper fixing bar (21), the upper fixing bar (21) being mounted on one side of the bed (1); A cylinder (22) is hinged to the upper fixing bar (21), the cylinder (22) has a piston rod (23) arranged downward, a dust cover (221) is installed at the lower end of the cylinder (22), and the piston rod (23) is slidably connected to the dust cover (221); A pressure plate member (24) mounted on the lower end of the piston rod (23); A support mechanism (3) is provided on one side of the piston rod (23).

2. The cold shear press plate structure according to claim 1, characterized in that: The support mechanism (3) comprises a first fixed sleeve (33) fixedly mounted on the dustproof sleeve (221), a first movable rod (31) being hingedly connected to one side of the first fixed sleeve (33), a second movable rod (32) being hingedly connected to one side of the end of the piston rod (23), and the second movable rod (32) and the other end of the first movable rod (31) being rotatably connected; A circular groove (311) is formed on one side of the first movable rod (31), a rotating shaft (35) is rotatably connected to the center of the circular groove (311), a ratchet (34) is fixedly mounted on the outer side of the rotating shaft (35), and a connecting rod is fixedly mounted on the first movable rod (31), and the connecting rod is fixedly mounted inside the rotating shaft (35).

3. The cold shear press plate structure according to claim 2, characterized in that: An adjusting groove (37) is provided on one side of the circular groove (311), a ratchet (36) is rotatably connected in the adjusting groove (37), a tooth tip of the ratchet (36) is clamped in the ratchet wheel (34), and a compression spring (38) is fixedly installed between the side of the ratchet (36) away from the ratchet wheel (34) and the adjusting groove (37).

4. The cold shear press plate structure according to claim 3, characterized in that: A mounting plate (39) is fixedly mounted on the surface of the adjustment slot (37); an arc slot (391) is fixedly mounted on one side of the mounting plate (39) close to the ratchet (36); baffles (392) are fixedly mounted on both sides of one end of the arc slot (391) close to the mounting plate (39); a clamping strip (393) is rotatably connected to the ratchet (36); the clamping strip (393) is located outside the arc slot (391); and the thickness of the clamping strip (393) is smaller than the width of the arc slot (391).

5. The cold shear press plate structure according to claim 2, characterized in that: A lower fixing bar (25) is fixedly installed at the bottom end of one side of the bed (1); the pressure plate (24) has a roller (241) rotatably connected to the lower fixing bar (25); an extension plate (242) is fixedly installed on one side of the roller (241) close to the cylinder (22); the other end of the extension plate (242) is rotatably connected to a connecting block (243); and a second fixing sleeve (246) is fixedly installed on the upper end of the connecting block (243).

6. The cold shear press plate structure according to claim 5, characterized in that: The end of the piston rod (23) is fixed in the second fixed sleeve (246), the second movable rod (32) is hinged to the second fixed sleeve (246), and connecting plates (244) are fixedly installed at both ends of the roller (241), and the other end of the connecting plate (244) is rotatably connected to a pressure roller (245).

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