Pneumatic material supporting and distortion preventing multifunctional device and method for plate shearing machine

Abstract

The invention discloses a pneumatic material supporting and anti-distortion multifunctional device and method for a plate shearing machine, the pneumatic material supporting and anti-distortion multifunctional device for the plate shearing machine comprises a guide supporting seat, the guide supporting seat is installed on the rear side of a workbench, a vertical sliding groove located in the top and an inclined sliding groove located in the bottom are formed in the guide supporting seat, and the bottom of the vertical sliding groove communicates with the top of the inclined sliding groove; the material supporting plate is provided with a moving body, the moving body achieves vertical swinging of the material supporting plate through an inclined sliding groove, the plate is supported in an anti-twisting mode through a vertical sliding groove, and in the shearing process, the material supporting plate moves downwards along the vertical sliding groove and is tightly attached to the bottom face of the plate all the time; and the material supporting air cylinder is rotationally installed on the rear side of the workbench, and the piston end of the material supporting air cylinder is hinged to the material supporting plate. The single air cylinder is adopted to drive the retainer plate to vertically move along the vertical sliding groove and to deflect along the inclined sliding groove, so that a plate is always attached to the retainer plate in the shearing process until shearing is completed, the plate is prevented from being twisted, and the quality problem caused by backward movement of a shearing point is avoided.

Description

Technical Field

[0001] The invention belongs to the field of plate shearing machines, and in particular relates to a pneumatic material supporting and anti-twisting multifunctional device and method for plate shearing machines. Background Art

[0002] As the working conditions of shearing machines for processing long and wide plates and long and narrow strips increase, the requirements for pneumatic rear support and anti-twist devices are getting higher and higher. The reason is that when the long and wide plates enter the shearing station, the rear extends too much, causing the center of gravity to move backward, the rear of the plate is obviously bent and deformed, and the positioning of the rear stop is not accurate. Among them, the pneumatic rear support can guarantee the dimensional accuracy of the cut plate to the greatest extent when shearing long and wide plates. When shearing long and narrow strips, due to the influence of the shearing machine's own structure and shearing method, the cut strips will be twisted to varying degrees, and they will be twisted. Among them, the anti-twist device can avoid the distortion of the plate.

[0003] Existing shearing machine support technology, such as Figure 1 and Figure 2 The rear support structure shown has the following problems:

[0004] 1. The traditional pneumatic supporting device has a simple structure and abandons the supporting function during the shearing process. It only plays a supporting role before the shearing action during the blocking process. Although this structure can guarantee the blocking accuracy to a certain extent, during the shearing process, the supporting device has dropped to the bottom dead center position (completely ineffective), and the shearing process is cut from left to right. The pneumatic supporting device on the right side loses its function prematurely. Under the action of its own gravity, the long board on the right side sags severely, causing the shearing point to move backward, thereby affecting the shearing accuracy.

[0005] 2. Most of the complex rear supports on the market use two sets of cylinders connected by a very long chain. One set of cylinders realizes up and down movement, and the other set of cylinders realizes flipping movement. The mechanical structure is complex and requires more gas path components, and the electrical control movement sequence requirements are also high.

[0006] 3. Most of the rear supports of this type adopt a triangular support rack structure. There is a gap between the support rack and the workbench. However, when the pallet material is long and narrow (width within 40mm), the long and narrow material will fall from the gap when the support rack is descending, and fall under the support plate through the baffle plate. Then the support plate will deflect outward and descend again, causing the long and narrow strip to be stuck between the support rack and the baffle plate. Summary of the invention

[0007] 1. Technical problem to be solved by the invention

[0008] One of the purposes of the present invention is to solve the problem that the right side of the existing supporting device loses the supporting effect too early, causing the long plate to sag and the shear point to move backward, for long and wide plates.

[0009] The second purpose of the present invention is to solve the problem that the existing supporting device has a complex mechanical structure, requires a large number of gas path components, and has a high requirement for the electrical control movement sequence for long and wide plates.

[0010] The third purpose of the present invention is to solve the problem that long and narrow plates are easily dropped from the gap between the supporting plate and the workbench, causing the plates to get stuck.

[0011] 2. Technical solution

[0012] In order to solve the above technical problems, the inventors have obtained the technical solution of the present invention through practice and summary. The present invention adopts the following technical solution:

[0013] A pneumatic support and anti-twisting multifunctional device for a plate shearing machine, comprising:

[0014] A guide support seat, which is installed on the rear side of the workbench. The guide support seat is provided with a vertical slide groove at the top and an oblique slide groove at the bottom, and the bottom of the vertical slide groove is connected to the top of the oblique slide groove;

[0015] A supporting plate is provided with a moving body, and the moving body realizes the downward movement and backward deflection of the supporting plate through a vertical slide groove and an oblique slide groove;

[0016] A supporting cylinder is rotatably mounted on the rear side of the workbench, and a piston end of the supporting cylinder is hinged on the supporting plate;

[0017] During the shearing process, the upper blade overcomes the ejection force of the support cylinder and presses down the piston rod, and the support plate moves down along the vertical slide and always stays close to the plate.

[0018] In the solution of the present application, a cylinder connection fulcrum and a mounting portion extending downward and used to mount the moving body are provided at the bottom of the support plate, wherein the mounting portion is located between the cylinder connection fulcrum and the workbench.

[0019] In the present application, the moving body includes two rotating pins, which are distributed up and down, and the line connecting the axes of the two rotating pins is perpendicular to the supporting plate, and a wear-resistant plate is installed on the top of the supporting plate.

[0020] In the solution of the present application, a pressure-bearing surface is provided on the front side of the mounting portion, a guide surface is provided on the top of the pressure-bearing surface, and the guide surface is provided obliquely upward along a side away from the cylinder connection fulcrum.

[0021] In the present application, two parallel vertical plates are arranged on the rear side of the guide support seat, the vertical slide groove and the oblique slide groove are arranged on the vertical plates, and the oblique slide groove is arranged gradually closer to the workbench from top to bottom;

[0022] A plurality of vertically distributed support rollers are mounted on the guide support seat. The support rollers are located between two vertical plates and abut against the pressure-bearing surface.

[0023] In the present application, the guide support seat, the supporting cylinder, and the supporting plate are provided in multiple groups and correspond one to one;

[0024] The supporting device also includes sliding plates spaced apart on both sides of the supporting plate and a blocking plate independently provided at the rear side of the supporting plate. The top of the guide support seat is located below the sliding plate. The sliding plate gradually moves away from the workbench from top to bottom. The top of the sliding plate is fixed on the workbench and the bottom is installed on an independent support beam.

[0025] When the moving body is in the oblique slide groove, the supporting plate is completely hidden under the sliding plate.

[0026] In the present application, the length of the vertical slide groove is greater than or equal to the sum of the distance between the two rotating pins and the distance that the support plate moves downward close to the bottom surface of the plate during the shearing process.

[0027] In the present application, a cylinder support is installed on the rear side of the workbench, and the cylinder support and the supporting cylinder are rotatably installed. When the moving body completely enters the vertical slide groove, the supporting cylinder is in a vertical state.

[0028] A method for using a pneumatic support and anti-twisting multifunctional device for a shearing machine, the steps are as follows:

[0029] Step 1: Level the support plate

[0030] The piston rod of the supporting cylinder drives the supporting plate upward, and the supporting plate moves upward along the vertical slide groove through a rotating pin and the other inclined slide groove until the supporting plate is in a horizontal state. At this time, both rotating pins are in the vertical slide groove;

[0031] The piston rod of the supporting cylinder continues to drive the supporting plate upward, and the supporting plate moves upward along the vertical slide groove through two rotating pins to the top dead center, that is, the highest position;

[0032] Step 2: Plate support and positioning

[0033] Push the plate from the front to the back on the workbench until the back side of the plate abuts against the baffle plate. At this time, the plate is horizontally supported by the support plate and will not sag;

[0034] Step 3, cutting

[0035] The upper blade moves downward, cutting the plate from left to right. The left support plate is first pressed, and the top output of the support cylinder remains unchanged. The support cylinder is equipped with a relief valve. The downward force of the upper blade overcomes the top output of the cylinder, and the excess pressure in the cylinder leaks out. At the same time, the support plate at the corresponding position moves downward along the vertical slide after two rotations. The support plate is always close to the bottom of the plate, and the plate will not be twisted.

[0036] Step 4, unloading

[0037] The piston rod of the supporting cylinder drives the supporting plate downward, and one of the two rotating pins on the supporting plate enters the oblique slide groove. At the same time, the supporting plate deflects backward until the supporting plate moves to the bottom dead center, that is, the initial position.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. The present invention adopts a single cylinder to drive the supporting plate to move vertically along the vertical slide groove and to deflect along the oblique slide groove, so as to achieve that during the shearing process, the top output of the supporting cylinder remains unchanged, the plate is sheared from left to right, and the upper blade overcomes the top output of the supporting cylinder (the supporting cylinder itself is equipped with a relief valve) and presses the piston rod down from left to right in turn. In this process, the plate is always close to the supporting plate until the shearing is completed, thereby preventing the plate from twisting, and the piston rods of the supporting cylinders from left to right are pressed down in turn without retreating, so that the bottom of the plate is always supported by the supporting plate, and the quality problem caused by the backward movement of the shearing point will not occur.

[0040] 2. The present invention adopts a method of arranging a moving body on the supporting plate, and a supporting roller is arranged on the guide support seat. The supporting roller and the supporting cylinder are respectively arranged on both sides of the mounting part, so that the mounting part can only move up and down when the moving body is located in the vertical slide groove, thereby adapting to the cutting action from left to right. When a rotating pin in the moving body enters the oblique slide groove, the supporting plate will swing backward, forming a continuous action of first descending and then flipping. After the piston rod reaches the bottom dead point, the supporting plate is completely hidden under the sliding plate, and the plate is separated from the supporting plate and slides down through the sliding plate to complete the collection. There will be no problem of long and narrow strips of plate getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a front view of the supporting device structure in the prior art.

[0042] Figure 2 It is a side sectional view of the supporting device structure in the prior art.

[0043] Figure 3 It is a schematic diagram of the overall structure of the present invention.

[0044] Figure 4 It is a structural schematic diagram of the supporting device of the present invention at the top dead center.

[0045] Figure 5 It is a schematic diagram of the structure of the supporting device of the present invention when shearing is completed.

[0046] Figure 6 It is a structural schematic diagram of the supporting device of the present invention at the bottom dead point.

[0047] Figure 7 It is a schematic diagram of the structure of the support plate.

[0048] Figure 8 Schematic diagram of the structure of the guide support seat.

[0049] Fig. 9 This is a state diagram of the material supporting device of the present invention when supporting materials.

[0050] Fig.10 This is a state diagram of the material supporting device of the present invention when the cutting action is completed.

[0051] In the figure: 10, guide support seat; 11, vertical slide groove; 12, oblique slide groove; 13, vertical plate; 14, support roller; 20, support plate; 21, moving body; 22, cylinder connection fulcrum; 23, mounting part; 231, pressure-bearing surface; 232, guide surface; 24, wear-resistant plate; 30, support cylinder; 31, cylinder support; 40, material baffle plate; 50, slide plate. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be described clearly and completely below 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, rather than all the embodiments.

[0053] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0054] Embodiment 1, as Figures 3 to 8 , Fig. 9 , Fig.10 As shown, a pneumatic supporting and anti-twisting multifunctional device for a shearing machine includes a guide support seat 10, a supporting plate 20, and a supporting cylinder 30. The guide support seat 10, the supporting cylinder 30, and the supporting plate 20 are all provided in multiple groups and correspond one to one.

[0055] The guide support seat 10 is installed on the rear side of the workbench. The guide support seat 10 is provided with a vertical slide groove 11 located at the top and an oblique slide groove 12 located at the bottom, and the bottom of the vertical slide groove 11 is connected to the top of the oblique slide groove 12.

[0056] Two parallel vertical plates 13 are arranged on the rear side of the guide support seat 10. The vertical slide groove 11 and the oblique slide groove 12 are both arranged on the vertical plate 13. The oblique slide groove 12 is arranged gradually closer to the workbench from top to bottom, and the inclination angle is 45°-60°.

[0057] A supporting plate 20 is provided with a moving body 21, and the moving body 21 realizes the downward movement and backward deflection of the supporting plate 20 through the vertical slide groove 11 and the oblique slide groove 12;

[0058] A supporting cylinder 30, which is rotatably mounted on the rear side of the workbench, and a piston end of the supporting cylinder 30 is hinged on the supporting plate 20;

[0059] During the shearing process, the upper blade overcomes the ejection force of the supporting cylinder 30 and presses down the piston rod, and the supporting plate 20 moves downward along the vertical slide groove 11 and is always in close contact with the plate.

[0060] Specifically, the bottom of the support plate 20 is provided with a cylinder connection fulcrum 22 and a mounting portion 23 extending downward and used to mount the moving body 21, wherein the mounting portion 23 is located between the cylinder connection fulcrum 22 and the workbench. A pressure-bearing surface 231 is provided on the front side of the mounting portion 23, and a guide surface 232 is provided on the top of the pressure-bearing surface 231, and the guide surface 232 is arranged obliquely upward along a side away from the cylinder connection fulcrum 22. The moving body 21 includes two rotating pins, which are distributed up and down, and the line connecting the axes of the two rotating pins is perpendicular to the support plate 20, and a wear-resistant plate 24 is installed on the top of the support plate 20. A cylinder support 31 is installed on the rear side of the workbench, and the cylinder support 31 and the supporting cylinder 30 are rotatably installed. When the moving body 21 completely enters the vertical slide 11, the supporting cylinder 30 is in a vertical state, which is beneficial to the force balance of the entire device.

[0061] The length of the vertical slide groove 11 is greater than or equal to the sum of the distance between the two rotating pins and the distance that the support plate 20 moves downward close to the bottom surface of the plate during the shearing process.

[0062] A plurality of vertically distributed support rollers 14 are mounted on the guide support seat 10 . The support rollers 14 are located between the two vertical plates 13 , and the support rollers 14 abut against the pressure-bearing surface 231 .

[0063] The supporting cylinder 30 is rotatably mounted on the rear side of the workbench, and a piston end of the supporting cylinder 30 is hinged on the supporting plate 20 .

[0064] When in use, the supporting cylinder 30 drives the supporting plate 20 upward, so that one of the two rotating pins of the supporting plate 20 enters the vertical slide groove 11 first, and the supporting plate 20 deflects upward toward the front side until the two rotating pins enter the vertical slide groove 11. At this time, the supporting plate 20 is in a horizontal state, and the piston rod of the supporting cylinder 30 drives the supporting plate 20 upward until it is at the top dead center. At this time, the plate is pushed in from front to back until the cutting position, and the upper blade descends to cut the plate. When cutting, the lower blade overcomes the corresponding ejection force of the supporting cylinder 30 from left to right in turn, so that the piston rod of the supporting cylinder 30 is pressed down, but the ejection force of the supporting cylinder 30 remains unchanged during the cutting process, and then the supporting plate 20 in the uncut position on the right side is always the ejection force at the initial time, which prevents the plate from sagging and ensures the cutting point position. It can also always apply an upward force to the plate to eliminate the problem of distortion and deformation. At the same time, during cutting, the support plate 20 only moves vertically downward without any front-to-back position, so that the plate will not fall off from the gap, causing the support plate 20 to get stuck when it is subsequently reset.

[0065] Embodiment 2, based on the above embodiment, Figure 3 As shown, the material supporting device also includes sliding plates 50 spaced apart on both sides of the material supporting plate 20 and support rollers 14 independently on the rear side of the material supporting plate 20. The top of the guide support seat 10 is below the sliding plate 50, and the sliding plate 50 gradually moves away from the workbench from top to bottom. The top of the sliding plate 50 is fixed on the workbench and the bottom is installed on an independent support beam. When the moving body 21 is in the oblique slide groove 12, the material supporting plate 20 is completely hidden under the sliding plate 50 to avoid material jamming on the sliding plate 50.

[0066] The method of using the pneumatic support and anti-twist multifunctional device for the shearing machine is as follows:

[0067] Step 1: Level the support plate

[0068] The piston rod of the supporting cylinder 30 drives the supporting plate 20 upward, and the supporting plate 20 moves upward along the vertical slide groove 11 and the other oblique slide groove 12 through a rotating pin until the supporting plate 20 is in a horizontal state. At this time, both rotating pins are in the vertical slide groove;

[0069] The piston rod of the supporting cylinder 30 continues to drive the supporting plate 20 upward, and the supporting plate 20 moves upward along the vertical slide groove 11 through two rotating pins to the top dead center, that is, the highest position;

[0070] Step 2: Plate support and positioning

[0071] Push the plate from the front to the back on the workbench until the back side of the plate abuts against the baffle plate 40. At this time, the plate is horizontally supported by the support plate 20 and will not sag;

[0072] Step 3, cutting

[0073] The upper blade moves downward, cutting the sheet from left to right. The left support plate 20 is first pressed, and the top force of the support cylinder 30 remains unchanged. The support cylinder 30 is equipped with a relief valve. The downward force of the upper blade overcomes the top force of the cylinder, and the excess pressure in the cylinder leaks out. At the same time, the support plate 20 at the corresponding position moves downward along the vertical slide 11 after two rotations. The support plate 20 is always close to the bottom of the sheet, and the sheet will not be twisted.

[0074] Step 4, unloading

[0075] The piston rod of the supporting cylinder 30 drives the supporting plate 20 downward, and one of the two rotating pins on the supporting plate 20 enters the inclined slide groove 12, and the supporting plate 20 deflects backward until the supporting plate 20 moves to the bottom dead center, that is, the initial position.

[0076] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The replacement may be a replacement of a part of the structure, device, method step, or a complete technical solution. Any equivalent replacement or change according to the technical solution and the inventive concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A pneumatic support and anti-twist multifunctional device for shearing machine, characterized in that: include: A guide support seat (10), the guide support seat (10) is installed on the rear side of the workbench, and a vertical slide groove (11) located at the top and an oblique slide groove (12) located at the bottom are provided on the guide support seat (10), and the bottom of the vertical slide groove (11) and the top of the oblique slide groove (12) are connected; A supporting plate (20) is provided with a moving body (21) on the supporting plate (20), and the moving body (21) is used to realize downward movement and backward deflection of the supporting plate (20) via a vertical slide groove (11) and an oblique slide groove (12); A material supporting cylinder (30), the material supporting cylinder (30) is rotatably mounted on the rear side of the workbench, and a piston end of the material supporting cylinder (30) is hinged on the material supporting plate (20); During the shearing process, the upper blade overcomes the ejection force of the supporting cylinder (30) and presses down the piston rod, and the supporting plate (20) moves downward along the vertical slide groove (11) and always stays close to the plate.

2. A pneumatic support and anti-twisting multifunctional device for a plate shearing machine according to claim 1, characterized in that: The bottom of the support plate (20) is provided with a cylinder connection fulcrum (22) and a mounting portion (23) extending downward and used for mounting the moving body (21), wherein the mounting portion (23) is located between the cylinder connection fulcrum (22) and the workbench.

3. A pneumatic support and anti-twist multifunctional device for a plate shearing machine according to claim 2, characterized in that: The moving body (21) comprises two rotating pins, which are distributed up and down, and the connecting line of the axes of the two rotating pins is arranged perpendicular to the supporting plate (20); A wear-resistant plate (24) is installed on the top of the supporting plate (20).

4. The pneumatic support and anti-twist multifunctional device for plate shearing machine according to claim 2, characterized in that: The front side of the mounting portion (23) is provided with a pressure-bearing surface (231), the top of the pressure-bearing surface (231) is provided with a guide surface (232), and the guide surface (232) is arranged obliquely upward along a side away from the cylinder connection fulcrum (22).

5. A pneumatic support and anti-twisting multifunctional device for a plate shearing machine according to claim 4, characterized in that: The rear side of the guide support seat (10) is provided with two parallel vertical plates (13), the vertical slide groove (11) and the oblique slide groove (12) are both provided on the vertical plates (13), and the oblique slide groove (12) is provided gradually closer to the workbench from top to bottom; A plurality of vertically distributed support rollers (14) are installed on the guide support seat (10); the support rollers (14) are located between two vertical plates (13), and the support rollers (14) abut against the pressure-bearing surface (231).

6. A pneumatic support and anti-twist multifunctional device for plate shearing machine according to claim 5, characterized in that: The guide support seat (10), the supporting cylinder (30), and the supporting plate (20) are all provided in multiple groups and correspond to each other one by one; The material support device further comprises sliding plates (50) spaced apart on both sides of the material support plate (20) and a supporting roller (14) independently disposed on the rear side of the material support plate (20); the top of the guide support seat (10) is located below the sliding plates (50); the sliding plates (50) gradually move away from the workbench from top to bottom; the top of the sliding plates (50) is fixed on the workbench and the bottom is mounted on an independent supporting beam; When the moving body (21) is in the oblique slide groove (12), the supporting plate (20) is completely hidden under the sliding plate (50).

7. A pneumatic support and anti-twisting multifunctional device for a plate shearing machine according to claim 1, characterized in that: The length of the vertical slide groove (11) is greater than or equal to the sum of the distance between the two rotating pins and the distance that the support plate (20) moves downward close to the bottom surface of the plate during the shearing process.

8. The pneumatic support and anti-twist multifunctional device for plate shearing machine according to claim 1, characterized in that: A cylinder support (31) is installed on the rear side of the workbench. The cylinder support (31) and the supporting cylinder (30) are rotatably installed. When the moving body (21) completely enters the vertical slide groove (11), the supporting cylinder (30) is in a vertical state.

9. A method for using a pneumatic support and anti-twisting multifunctional device for a plate shearing machine, characterized in that: Here are the steps: Step 1: Level the support plate The piston rod of the supporting cylinder (30) drives the supporting plate (20) upward, and the supporting plate (20) moves upward along the vertical slide groove (11) and the other inclined slide groove (12) through a rotating pin until the supporting plate (20) is in a horizontal state. At this time, both rotating pins are in the vertical slide groove. The piston rod of the supporting cylinder (30) continues to drive the supporting plate (20) upward, and the supporting plate (20) moves upward along the vertical slide groove (11) via two rotating pins to the upper dead point, that is, the highest position; Step 2: Plate support and positioning Push the plate from the front to the back on the workbench until the back side of the plate abuts against the material blocking plate (40). At this time, the plate is horizontally supported by the supporting plate (20) and does not sag; Step 3, cutting The upper blade moves downward, cutting the plate from left to right. The left support plate (20) is first pressed, and the top force of the support cylinder (30) remains unchanged. The support cylinder (30) is equipped with a relief valve. The downward force of the upper blade overcomes the top force of the cylinder, and the excess pressure in the cylinder is released. At the same time, the support plate (20) at the corresponding position moves downward along the vertical slide groove (11) after two rotations. The support plate (20) is always closely attached to the bottom of the plate, and the plate will not be twisted. Step 4, unloading The piston rod of the supporting cylinder (30) drives the supporting plate (20) downward, and one of the two rotating pins on the supporting plate (20) enters the inclined slide groove (12), and the supporting plate (20) deflects backward until the supporting plate (20) moves to the bottom dead center, that is, the initial position.

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