Manual plate shearing device facilitating fixing and pre-tensioning of plates and strips

Abstract

The utility model discloses a manual plate shearing device convenient for fixing and pre-tensioning plates and strips. The manual plate shearing device comprises a plate shearing machine support, a cutting board frame, a movable cutting board, an objective table, a fixed cutting board, an objective table moving mechanism, a plate and strip fixing mechanism, a tensioning mechanism and a hopper. According to the utility model, the plate strip can be quickly clamped, locked and unlocked through the fixing mechanism, so that the displacement and bounce of the plate strip during shearing are avoided; according to the plate strip shearing mechanism, the two fixing assemblies can be matched with a tensioning mechanism, the relative positions of the two fixing assemblies can be adjusted so as to adapt to machining of plate strips of different sizes, and the mechanism can further apply proper tension to the plate strips by laterally pushing the fixing assemblies so as to guarantee the flatness and straightness of the surfaces of the plate strips during shearing; the sheared materials are collected in a lossless mode through the hopper, so that the shearing stability and the machining precision of the plate shearing machine are guaranteed, the structure is visual and simple, and operator training and equipment maintenance are easy.

Description

Technical Field

[0001] This utility model relates to the field of shearing device technology, specifically a manual shearing device that facilitates the fixing and pre-tensioning of sheet and strip materials. Background Technology

[0002] Traditional manual shearing machines (such as) Figure 1 , 2 (As shown) This type of shearing machine is widely used in the processing of sheet and strip metal. It mainly includes a shearing machine bracket 1, a worktable 2, and a blade holder 3. All of the above structures are fixed designs. A movable blade 4 is movably mounted on the blade holder 3, and a fixed blade 5 is mounted on the side of the worktable 2 facing the movable blade 4. However, this structure has the following main disadvantages when used:

[0003] 1. Lack of mechanical fixing function: The strip material is fixed entirely by manual pressing without a reliable mechanical fixing device. This results in the strip material with a large surface area not being effectively pressed and positioned. During the shearing process, the material is prone to displacement, and it is difficult to align the shearing machine blade with the scribing line on the strip material, resulting in uneven cuts. The material is also prone to bouncing, causing the cut to be wavy, arc-shaped, or uneven. For complex-shaped thin plates that require multiple shearing passes and precise dimensional requirements, the finished product dimensions deviate significantly from the target dimensions, and there are also large dimensional deviations between the finished products after shearing. The shearing accuracy is poor, which seriously affects the quality and efficiency of the material shearing.

[0004] 2. No pre-tensioning function: It cannot pre-tension the strip to obtain a flatter and straighter shearing surface. For strips with poor flatness and straightness, it is impossible to flatten and shear, or the strip will warp severely after shearing, and the shearing edges will be uneven and not straight, affecting the shearing quality.

[0005] 3. Inconvenient collection of finished products: After slitting, finished products and waste materials fall naturally and scatter randomly, lacking a collection mechanism, increasing the workload of manual sorting. At the same time, the falling and collision of cut finished products seriously damages the smooth surface of the finished products, reduces the quality of cut finished products and production efficiency, and may also pose safety hazards. Utility Model Content

[0006] The purpose of this utility model is to provide a manual shearing device that facilitates the pre-tensioning and fixing of sheet and strip materials, thereby solving the problems of poor quality and production efficiency caused by insufficient fixing of sheet and strip materials, uneven surface, and inconvenience in collecting finished products when using traditional shearing machines.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a manual shearing device for facilitating the pre-tensioning of sheet and strip materials, comprising:

[0008] A shearing machine support frame, on which a blade holder is mounted, and a movable blade is movably mounted on the blade holder;

[0009] A platform, with a fixed blade plate on the side facing the movable blade plate;

[0010] A platform moving mechanism is provided between the shearing machine bracket and the platform. The platform is slidably disposed in the cavity inside the shearing machine bracket via the platform moving mechanism. The shearing machine bracket is provided with fixing parts on both sides of the platform.

[0011] A strip material fixing mechanism is disposed on the platform and includes a first fixing component and a second fixing component. The first fixing component is positioned on one side of the platform, and the second fixing component is slidably disposed on the other side of the platform. Both the first fixing component and the second fixing component include a pressure strip fixing bracket, a lifting drive component, and a strip material pressure strip. The strip material pressure strip is movably disposed in a sleeve on the side of the pressure strip fixing bracket, and the sleeve cooperates with the strip material pressure strip to fix the strip material.

[0012] Tensioning mechanism, which is used for sliding drive and clamping positioning of the second fixing component;

[0013] The hopper is mounted on the shearing machine bracket, and one side of it is joined with the fixed blade.

[0014] As a further description of the above technical solution:

[0015] The platform moving mechanism includes a longitudinal guide rail mounted inside the shearing machine bracket and a plurality of first sliders positioned on both sides of the platform, the first sliders being slidably disposed on the longitudinal guide rail.

[0016] As a further description of the above technical solution:

[0017] The fastener is a locking elbow joint.

[0018] As a further description of the above technical solution:

[0019] The bottom of the pressure strip fixing bracket of the first fixing component is shaped like a "Z", and a second slider is provided at its end. The second slider is slidably disposed on the horizontal guide rail at the bottom of the platform.

[0020] As a further description of the above technical solution:

[0021] The lifting drive component is a lead screw. The upper end of the lead screw is screwed to the reserved hole above the pressure strip fixing bracket and the lead screw nut seat, and is connected to the lifting and rotating handle. The lead screw is rotatably connected to the strip pressure strip, and the side of the strip pressure strip is spliced ​​with the side of the sleeve.

[0022] As a further description of the above technical solution:

[0023] The bottom of the strip pressure bar is provided with a toothed protrusion.

[0024] As a further description of the above technical solution:

[0025] The tensioning mechanism includes several lead screw bearing seats coaxially arranged on the platform and a traction lead screw screw screwed onto the lead screw bearing seats. One end of the traction lead screw screw screw is rotatably connected to the lead screw bearing seat screw on the side of the pressure strip fixing bracket of the first fixing component, and the other end screw screw crank is connected to the lead screw crank handle.

[0026] As a further description of the above technical solution:

[0027] The hopper is a lightweight, flexible box-shaped structure with hanging ears on both sides. The hopper and hanging ears are assembled inside the shearing machine bracket and blade holder. The side of the hopper facing the fixed blade has a stepped clearance opening.

[0028] In summary, by adopting the above technical solution, this utility model has the following advantages over the prior art:

[0029] Beneficial effects:

[0030] This invention enables rapid clamping, locking, and unlocking of sheet and strip materials via a fixing mechanism, preventing displacement and bouncing during shearing. Combined with a tensioning mechanism, the relative positions of the two fixing components can be adjusted to accommodate sheet and strip materials of different sizes, expanding the application range of the device. Furthermore, this mechanism can apply appropriate tension to the sheet and strip material by laterally pushing the fixing components, ensuring the flatness and straightness of the sheet and strip surface during shearing. Combined with a multi-directional linear guide system, it ensures the stability of the shearing process. The sheared material is collected non-destructively through a hopper, thereby ensuring the shearing stability and processing accuracy of the shearing machine, improving its performance and production efficiency in modern industrial applications. The structure is intuitive and simple, facilitating operator training and equipment maintenance. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 Schematic diagram of a traditional manual shearing machine Figure 1 .

[0033] Figure 2 Schematic diagram of a traditional manual shearing machine Figure 2 .

[0034] Figure 3 A schematic diagram of a manual shearing device for easy pre-tensioning and fixing of sheet and strip materials. Figure 1 .

[0035] Figure 4 A schematic diagram of a manual shearing device for easy pre-tensioning and fixing of sheet and strip materials. Figure 2 .

[0036] Figure 5 This is a schematic diagram of the structure of a manual shearing device for facilitating the pre-tensioning and fixing of sheet and strip materials, comprising a platform, a platform moving mechanism, a sheet and strip fixing mechanism, and a tensioning mechanism. Figure 1 .

[0037] Figure 6 This is a schematic diagram of the structure of a manual shearing device for facilitating the pre-tensioning and fixing of sheet and strip materials, comprising a platform, a platform moving mechanism, a sheet and strip fixing mechanism, and a tensioning mechanism. Figure 2 .

[0038] Figure 7 This is a schematic diagram of the hopper structure in a manual shearing device that facilitates the pre-tensioning and fixing of sheet and strip materials.

[0039] Legend:

[0040] 1. Shearing machine bracket; 2. Platform; 3. Blade holder; 4. Movable blade; 5. Fixed blade; 6. Platform moving mechanism; 61. Longitudinal guide rail; 62. First slider; 63. Fixing component; 7. Sheet / strip fixing mechanism; 71. First fixing component; 72. Second fixing component; 73. Pressure strip fixing bracket; 74. Lifting drive component; 75. Sheet / strip pressure strip; 76. Second slider; 77. Transverse guide rail; 78. Lifting and rotating handle; 8. Tensioning mechanism; 81. Screw bearing seat; 82. Traction screw; 83. Screw crank handle; 9. Hopper; 91. Hanging lug; 92. Clearance opening. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0042] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Please see Figure 3-7 This utility model provides a technical solution: a manual shearing device for facilitating the pre-tensioning of sheet and strip materials, comprising:

[0044] A shearing machine support 1 is provided with a blade holder 3, and a movable blade 4 is movably mounted on the blade holder 3.

[0045] The platform 2 has a fixed blade 5 on the side facing the movable blade 4;

[0046] A platform moving mechanism 6 is disposed between the shearing machine bracket 1 and the platform 2. The platform 2 is slidably disposed in the cavity inside the shearing machine bracket 1 through the platform moving mechanism 6. Fixing members 63 are provided on both sides of the platform 2 of the shearing machine bracket 1.

[0047] The strip material fixing mechanism 7 is disposed on the platform 2 and includes a first fixing component 71 and a second fixing component 72. The first fixing component 71 is positioned on one side of the platform 2, and the second fixing component 72 is slidably disposed on the other side of the platform 2. Both the first fixing component 71 and the second fixing component 72 include a pressure strip fixing bracket 73, a lifting drive component 74, and a strip material pressure strip 75. The strip material pressure strip 75 is movably disposed in the sleeve on the side of the pressure strip fixing bracket 73, and the sleeve cooperates with the strip material pressure strip 75 to fix the strip material.

[0048] Tensioning mechanism 8 is used for sliding drive and clamping positioning of the second fixing component 72;

[0049] The hopper 9 is mounted on the shearing machine bracket 1, and one side of it is joined with the fixed blade 5.

[0050] The platform moving mechanism 6 includes a longitudinal guide rail 61 mounted inside the shearing machine bracket 1 and a plurality of first sliders 62 positioned on both sides of the platform 2. The first sliders 62 are slidably disposed on the longitudinal guide rail 61. The above design realizes the longitudinal and relative movement function of the platform 2 relative to the movable blade 4.

[0051] The fastener 63 is a locking elbow. This locking elbow is a conventional sheet metal press-fit assembly, such as... Figure 3-5 As shown, it includes a base, an operating lever, and a pressing lever that are hinged to each other. The three components form a quadrilateral movable structure, which allows the pressing lever to be raised or lowered by lifting or pressing the operating lever, so as to switch the movable or locked state of the platform 2 and the shearing machine bracket 1.

[0052] The bottom of the pressure strip fixing bracket 73 of the first fixing component 71 is shaped like a "Z", and a second slider 76 is provided at its end. The second slider 76 is slidably disposed on the transverse guide rail 77 at the bottom of the platform 2.

[0053] The lifting drive component 74 is a lead screw. The upper end of the lead screw is screwed to the reserved hole above the pressure strip fixing bracket 73 and the lead screw nut seat, and is connected to the lifting rotary handle 78. The lead screw is rotatably connected to the strip pressure strip 75. The side of the strip pressure strip 75 is spliced ​​with the side of the sleeve, thereby realizing the function of adjusting the height of the pressure strip by rotating the handle to perform the functions of positioning, locking, unlocking and disengaging the strip.

[0054] The above structural design enables the shearing device to quickly fix sheet and strip materials. The quick-clamping structure rapidly and securely secures the sheet and strip, facilitating alignment, preventing displacement and bouncing during shearing, and ensuring shearing quality. The tensioning mechanism allows for adjustment of the relative positions of the two fixing components, enabling flexible adjustment according to material size to accommodate various sheet and strip dimensions, thus expanding the equipment's application range.

[0055] The bottom of the strip pressure bar 75 is provided with a toothed protrusion. The toothed protrusion on the lower surface of the pressure bar generates additional friction with the material, thereby achieving the function of locking and fixing the material.

[0056] The tensioning mechanism 8 includes several screw bearing seats 81 coaxially arranged on the platform 2 and a traction screw 82 screwed onto the screw bearing seats 81. One end of the traction screw 82 is rotatably connected to the screw bearing seat 81 on the side of the pressure strip fixing bracket 73 of the first fixing component 71, and the other end is connected to the screw crank handle 83.

[0057] This device is equipped with the aforementioned efficient pre-tensioning mechanism, which applies appropriate tension to the strip material before shearing to effectively improve the surface flatness and straightness of the strip material to be sheared. The high-precision linear guide system used for structural drive guidance ensures stability and straightness during the shearing process, avoids deformation of the sheared edges, improves shearing accuracy, and enhances the quality of the finished product.

[0058] The hopper 9 is a lightweight, flexible box-type structure with hanging ears 91 on both sides. The hopper 9 and the hanging ears 91 are assembled inside the shearing machine bracket 1 and the blade holder 3. The hopper 9 has a stepped clearance opening 92 on the side facing the fixed blade 5. The easily detachable flexible hopper collects the sheared finished products in a timely and effective manner, preventing them from falling, scattering, or colliding. The clearance opening 92 allows for structural avoidance during the shearing process, preventing structural collisions and wear between the strip and the device.

[0059] The manufacturing, assembly, and use of this hopper include: cutting and folding lightweight and readily available hollow board material into a box-shaped flexible hopper that does not interfere with the moving blade 4 of the shearing machine; angle steel can be glued to the lugs 91 on both sides of the hopper 9 to enhance its load-bearing strength; pushing the lugs 91 of the hopper 9 along the inner crossbeam of the shearing machine bracket 1 to fit the fixed blade 5 and blade holder 3 of the shearing machine; after the material shearing operation is completed, the finished material naturally falls into this flexible hopper, thereby realizing the functions of finished product collection and preventing drops and collisions.

[0060] The working principle of a manual shearing device for facilitating the pre-tensioning of sheet and strip materials according to this embodiment includes:

[0061] 1. Suspend flexible hopper: Suspend the hopper 9 at the rear of the shearing machine bracket 1, ensuring it is in close contact with the fixed blade 5;

[0062] 2. Adjusting the fixing mechanism: Rotate the screw crank 83 so that the traction screw 82, guided by the screw bearing seat 81, pushes the second fixing component 72 to adjust the distance between it and the first fixing component 71 to approximately match the width of the strip material. Insert the material so that its left side is aligned with the sleeve of the first fixing component 71, and fine-tune the position of the second fixing component 72 until it is perfectly matched.

[0063] 3. Locking the material: Rotate the lifting handle 78 to make the lifting drive component 74 push the strip pressure bar 75 down and firmly lock the material on both sides through its toothed bottom surface and sleeve.

[0064] 4. Pre-tensioning the material: Continue to rotate the screw handle 83 until the material is fully tensioned, the surface has no significant undulations or waves, and the flatness and straightness of the material surface are significantly improved.

[0065] 5. Positioning the platform: Push the platform 2 to move the strip material to the cutting position, and pull the locking toggle on the shearing machine bracket 1 to lock the position of the platform 2.

[0066] 6. Perform cutting: Press the operating pedal / handle (hidden in the figure) to press the movable blade 4 into the blade holder 3, and through its cooperation with the fixed blade 5, complete a single cutting of the strip material;

[0067] 7. Remove the finished product: After all the materials have been cut, remove the flexible hopper and obtain the sheared material.

[0068] In summary, due to the adoption of the above technical solution, the manual shearing device for facilitating the pre-tensioning of sheet and strip materials in this embodiment has the following advantages compared to the prior art:

[0069] This invention enables rapid clamping, locking, and unlocking of sheet and strip materials via a fixing mechanism, preventing displacement and bouncing during shearing. Combined with a tensioning mechanism, the relative positions of the two fixing components can be adjusted to accommodate sheet and strip materials of different sizes, expanding the application range of the device. Furthermore, this mechanism can apply appropriate tension to the sheet and strip material by laterally pushing the fixing components, ensuring the flatness and straightness of the sheet and strip surface during shearing. Combined with a multi-directional linear guide system, it ensures the stability of the shearing process. The sheared material is collected non-destructively through a hopper, thereby ensuring the shearing stability and processing accuracy of the shearing machine, improving its performance and production efficiency in modern industrial applications. The structure is intuitive and simple, facilitating operator training and equipment maintenance.

[0070] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A manual shearing device for easy pre-tensioning and fixing of sheet and strip materials, characterized in that, include: A shearing machine support frame, on which a blade holder is mounted, and a movable blade is movably mounted on the blade holder; A platform, with a fixed blade plate on the side facing the movable blade plate; A platform moving mechanism is provided between the shearing machine bracket and the platform. The platform is slidably disposed in the cavity inside the shearing machine bracket via the platform moving mechanism. The shearing machine bracket is provided with fixing parts on both sides of the platform. A strip material fixing mechanism is disposed on the platform and includes a first fixing component and a second fixing component. The first fixing component is positioned on one side of the platform, and the second fixing component is slidably disposed on the other side of the platform. Both the first fixing component and the second fixing component include a pressure strip fixing bracket, a lifting drive component, and a strip material pressure strip. The strip material pressure strip is movably disposed in a sleeve on the side of the pressure strip fixing bracket, and the sleeve cooperates with the strip material pressure strip to fix the strip material. Tensioning mechanism, which is used for sliding drive and clamping positioning of the second fixing component; The hopper is mounted on the shearing machine bracket, and one side of it is joined with the fixed blade.

2. The manual shearing device for facilitating the pre-tensioning and fixing of sheet and strip materials according to claim 1, characterized in that, The platform moving mechanism includes a longitudinal guide rail mounted inside the shearing machine bracket and a plurality of first sliders positioned on both sides of the platform, the first sliders being slidably disposed on the longitudinal guide rail.

3. The manual shearing device for facilitating the pre-tensioning and fixing of sheet and strip materials according to claim 1, characterized in that, The fastener is a locking elbow joint.

4. The manual shearing device for facilitating the pre-tensioning and fixing of sheet and strip materials according to claim 1, characterized in that, The bottom of the pressure strip fixing bracket of the first fixing component is shaped like a "Z", and a second slider is provided at its end. The second slider is slidably disposed on the horizontal guide rail at the bottom of the platform.

5. A manual shearing device for facilitating the pre-tensioning and fixing of sheet and strip materials according to claim 1, characterized in that, The lifting drive component is a lead screw. The upper end of the lead screw is screwed to the reserved hole above the pressure strip fixing bracket and the lead screw nut seat, and is connected to the lifting and rotating handle. The lead screw is rotatably connected to the strip pressure strip, and the side of the strip pressure strip is spliced ​​with the side of the sleeve.

6. A manual shearing device for facilitating the pre-tensioning and fixing of sheet and strip materials according to claim 1, characterized in that, The bottom of the strip pressure bar is provided with a toothed protrusion.

7. A manual shearing device for facilitating the pre-tensioning and fixing of sheet and strip materials according to claim 1, characterized in that, The tensioning mechanism includes several lead screw bearing seats coaxially arranged on the platform and a traction lead screw screw screwed onto the lead screw bearing seats. One end of the traction lead screw screw screw is rotatably connected to the lead screw bearing seat screw on the side of the pressure strip fixing bracket of the first fixing component, and the other end screw screw crank is connected to the lead screw crank handle.

8. A manual shearing device for facilitating the pre-tensioning and fixing of sheet and strip materials according to claim 1, characterized in that, The hopper is a lightweight, flexible box-shaped structure with hanging ears on both sides. The hopper and hanging ears are assembled inside the shearing machine bracket and blade holder. The side of the hopper facing the fixed blade has a stepped clearance opening.

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