Scissors facilitating shearing

Abstract

The utility model discloses scissors convenient for shearing, which comprise a base, a fixed tool apron, a movable tool apron, a clamping component and an adjusting piece, the base is grounded, the fixed tool apron is connected with the base, a feeding platform is arranged on one side of the fixed tool apron, a discharging slope is arranged on the other side of the fixed tool apron, a detachable base plate is arranged on the feeding platform, the root of the movable tool apron is rotatably connected to the base, and the clamping component is arranged on the base. The movable tool apron is located above the discharging slope, an outward protruding block at the root of the movable tool apron is connected with the base through a first hydraulic rod, the adjusting part is arranged in the base, the clamping assembly is connected with the upper surface of the adjusting part and located above the feeding platform, and the height of the clamping assembly is adjustable; the device has the advantages that the adjusting part is arranged, the height of the clamping assembly is adjusted according to the thickness of the metal workpiece, the clamping assembly is always in a horizontal state when clamping the metal workpiece, and the metal workpiece is stably stressed; the detachable base plate and the tooth plate are arranged and can be replaced in time after being used for a long time and abraded, the maintenance cost is reduced, meanwhile, the structure is simple, and the replacement operation difficulty is low.

Description

Technical Field

[0001] The utility model relates to the technical field of metal cutting tools, in particular to a pair of scissors that are convenient for shearing. Background Art

[0002] Scissors are a double-edged tool for cutting objects, with two blades staggered and can be opened and closed. Scissors for cutting metal are also called shears. They are usually driven by hydraulics and are suitable for metal recycling plants, scrap car dismantling sites, smelting and casting industries. They are used for cold shearing and flanging of various shapes of steel and various metal materials, as well as pressing and forming powder products, plastics, fiberglass, insulating materials, and rubber. Crocodile shears are a common metal shear. When in use, the metal workpiece needs to be clamped first. The existing clamping structure is hinged at one end and connected to the hydraulic rod at the other end. The angle is reduced by hydraulic drive to clamp the metal workpiece to be sheared. However, when the width of the metal workpiece is large, the outer side is less stressed or almost unstressed, and the clamping is not stable enough. Or when multiple metal workpieces are to be sheared side by side, the metal workpiece on the outside is not stressed. When the shear blades are closed for shearing, the metal workpiece on the outside is prone to dislocation and collapse, causing safety accidents. At the same time, the clamping mechanism is easy to wear and the replacement cost is high. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the existing clamping method of the crocodile shearing machine tightens the metal workpieces on the inner and outer sides, which is easy to cause safety accidents during shearing; at the same time, the clamping structure is easy to wear and the replacement cost is high; in view of the above problem, a pair of scissors convenient for shearing is proposed, including a base, a fixed knife seat, a movable knife seat, a clamping assembly and an adjusting member, the base is grounded, the fixed knife seat is connected to the base, one side of the fixed knife seat is a feeding platform, and the other side is a discharge slope, a detachable pad is provided on the feeding platform, a block protruding outwards from the root of the movable knife seat is connected to the base through a first hydraulic rod, the movable knife seat is located above the discharge slope, the head of the movable knife seat is connected to the base through the first hydraulic rod, the adjusting member is arranged inside the base, the clamping assembly is connected to the upper surface of the adjusting member and is located above the feeding platform, and the height of the clamping assembly is adjustable.

[0004] The technical solution of the utility model can adjust the height of the clamping assembly according to the actual thickness of the metal workpiece by setting the structure of the adjusting part, so as to ensure that the clamping arm is always in a horizontal state when clamping the metal workpiece, the inner and outer sides of the metal workpiece are subjected to balanced force, and the clamping assembly can stably clamp the metal workpiece to avoid accidental injury to workers during shearing by misalignment; by setting a detachable pad and tooth plate, there is no need to replace the entire plate when it is severely worn after long-term use, thereby reducing the repair and maintenance costs. At the same time, due to the simple overall structure, the disassembly and assembly process is easy, which is convenient for the actual operation of the workers; by setting the pointing slot and the scale line, when the height of the clamping assembly is adjusted, the height of the pointing block passing through the pointing slot also changes accordingly, and the specific height value of the clamping assembly adjustment can be known by observing the scale line.

[0005] Preferably, a pointing groove is provided on the side wall of the base close to the clamping assembly, and a scale line for observing the height is provided on one side of the pointing groove. The pointing groove is used to pass a pointing block, and the pointing block is fitted with the scale line. When the height of the clamping assembly is adjusted by the adjusting piece, the specific lifting height of the clamping assembly can be understood by observing the scale line.

[0006] Preferably, the fixed tool holder and the movable tool holder are fitted and staggered with each other, and the fitting surfaces of the fixed tool holder and the movable tool holder are provided with blades for cutting metal workpieces. The fixed tool holder and the movable tool holder cooperate with each other to shear the metal workpiece, and the blades are fixed to the tool holder by bolts and can be replaced according to wear conditions.

[0007] Preferably, the feeding platform is provided with a fixing groove for installing a pad, a limiting block is provided on one side of the fixing groove, an insert block is provided at the bottom end of the limiting block, a matching slot is provided on the bottom surface of the fixing groove, and a protrusion is provided on the upper surface of the pad for increasing friction. The pad is inserted into the fixing groove from the outside and then limited by the limiting block. The installation is simple and it is convenient to replace when worn.

[0008] Preferably, the upper surface of the pad is provided with an array of bumps for increasing friction, and the bumps increase the friction by increasing the roughness of the pad surface.

[0009] Preferably, the clamping assembly includes a mounting platform, the root of the clamping arm is rotatably connected to the mounting platform, the head of the clamping arm is connected to one end of the second hydraulic rod, the other end of the second hydraulic rod is connected to the portion extending upward from the mounting platform, a pointing block is provided at the bottom of the side wall of the mounting platform, the pointing block passes through the pointing slot, the second hydraulic rod is used to adjust the angle of the clamping arm and clamp the metal rod, the moving height of the mounting platform is the same as the moving height of the pointing block in the pointing slot, and the actual lifting height of the clamping assembly can be obtained by observing the scale line.

[0010] Preferably, the lower surface of the clamping arm is provided with a tooth plate, the tooth plate and the fitting surface of the clamping arm are provided with a clamping block, the lower surface of the clamping arm is provided with a matching clamping groove, the lower surface of the tooth plate is provided with teeth for increasing friction, the tooth plate is clamped on the lower surface of the clamping arm, and the teeth are used to increase friction to make the clamping more stable.

[0011] Preferably, the adjusting member is an electric scissor jack, which is connected to the lower surface of the mounting platform and can adjust the height of the mounting platform, thereby achieving the purpose of adjusting the height of the clamping assembly.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The technical solution of the utility model can adjust the height of the clamping assembly according to the actual thickness of the metal workpiece by setting the structure of the adjusting part, so as to ensure that the clamping arm is always in a horizontal state when clamping the metal workpiece, the inner and outer sides of the metal workpiece are subjected to balanced force, and the clamping assembly can stably clamp the metal workpiece to avoid accidental injury to workers during shearing by misalignment; by setting a detachable pad and tooth plate, there is no need to replace the entire plate when it is severely worn after long-term use, thereby reducing the repair and maintenance costs. At the same time, due to the simple overall structure, the disassembly and assembly process is easy, which is convenient for the actual operation of the workers; by setting the pointing slot and the scale line, when the height of the clamping assembly is adjusted, the height of the pointing block passing through the pointing slot also changes accordingly, and the specific height value of the clamping assembly adjustment can be known by observing the scale line. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 This is a partial enlarged schematic diagram of the feeding platform of the utility model;

[0016] Figure 3 It is a partial cutaway schematic diagram of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0018] Among them: 1-base, 11-pointing slot, 12-scale line, 2-fixed tool holder, 21-feeding platform, 22-discharging slope, 23-fixed slot, 24-pad, 25-limiting block, 26-insertion block, 27-slot, 3-movable tool holder, 31-first hydraulic rod, 4-clamping assembly, 41-clamping arm, 42 tooth plate, 43-second hydraulic rod, 44-cage, 45-cage, 46-pointing block, 47-installation platform, 5-electric scissor jack. DETAILED DESCRIPTION

[0019] The following will be combined with the attached embodiment of the present utility model Figure 1-4 , the technical solutions in the embodiments of the utility model are described in detail. Example 1

[0020] like Figure 1-4 As shown, the utility model is a pair of scissors convenient for cutting, comprising a base 1, a fixed knife seat 2, a movable knife seat 3, a clamping assembly 4 and an adjusting member 5.

[0021] The base 1 is placed on the ground, and the fixed knife seat 2 is connected to the base 1 to form an integrated structure. One side of the fixed knife seat 2 is horizontal and serves as a feeding platform 21 to prevent the metal workpiece to be sheared. The fixed knife seat 2 is tilted downward to form a slope, which serves as a discharge slope 22 to guide the metal workpiece when it falls after shearing. A storage basket can be placed at the bottom of the discharge slope 22 to better collect the sheared metal workpiece.

[0022] The root of the movable tool seat 3 is rotatably connected to the base 1, and the movable tool seat 3 is located above the discharge slope 22 as a whole. The root of the movable tool seat 3 extends and protrudes backward, and is rotatably connected to the movable end of the first hydraulic rod 31. The fixed end of the first hydraulic rod 31 is fixedly connected to the base 1, and the fixed tool seat 2 and the movable tool seat 3 are fitted and staggered with each other. The fitting surfaces of the fixed tool seat 2 and the movable tool seat 3 when they are staggered are provided with blades for cutting metal workpieces. The movable end of the first hydraulic rod 31 is extended and retracted to drive the movable tool seat 3 to rotate, change the angle between it and the fixed tool seat 2, and finally close to achieve the purpose of shearing.

[0023] like Figure 2 As shown, the upper surface of the feeding platform 21 is concave to form a fixing groove 23 for installing a pad 24. The fixing groove 23 extends from the side away from the blade to fix the side wall of the knife seat 2. The pad 24 is horizontally inserted into the fixing groove 23 from the side wall and is limited by a limit block 25. The bottom of the limit block 25 is convex to form a plurality of plug-in blocks 26, and the bottom surface of the fixing groove 23 is concave to form a plurality of slots 27 matching therewith. The pad 24 is a detachable structure and can be replaced in time according to the wear condition.

[0024] The upper surface of the pad 24 is raised to form a plurality of small bumps, which are distributed in an array and are used to increase the surface roughness of the pad 24 to increase friction, making it easier for the clamping assembly 4 to stably clamp the metal workpiece. After long-term use, when the bumps are severely worn and need to be replaced, the limit block 25 is removed, the pad 24 is pulled out, and a new pad 24 is replaced. Then, the insert block 26 at the bottom of the limit block 25 is inserted into the slot 27. The overall operation is simple and there is no need to replace the entire block, which reduces maintenance costs.

[0025] like Figure 3-4 As shown, the base 1 is concave to form a mounting groove, and the adjusting member 5 is placed in the mounting groove. The bottom of the adjusting member 5 can be fixed by bolts or the like and connected to the base 1. The top of the adjusting member 5 is fixedly connected to the clamping assembly 4 by bolts or the like. Under the action of the adjusting member 5, the height of the clamping assembly 4 is adjustable. The adjusting member 5 is an electric scissor jack, which is a prior art, has sufficient bearing capacity, and is easy to obtain.

[0026] The clamping assembly 4 includes a mounting platform 47, the cross-section of which matches the shape of the mounting groove. The top of the adjusting member 5 is connected to the center of the bottom surface of the mounting platform 47. The adjusting member 5 can drive the mounting platform 47 to move in a vertical direction. The mounting platform 47 has a certain thickness. When the adjusting assembly 4 moves up and down, a part of it is always located in the mounting groove.

[0027] The side wall of the base 1 close to the clamping assembly 4 is concave to form a pointing groove 11, which is connected to the mounting groove. A scale line 12 for observing height changes is provided on one side of the pointing groove 11.

[0028] The root of the clamping arm 41 is rotatably connected to the upper surface of the mounting platform 47, the head of the clamping arm 41 is rotatably connected to the movable end of the second hydraulic rod 43, the fixed end of the second hydraulic rod 43 is fixedly connected to the upwardly extending protruding portion of the mounting platform 47, the bottom of the side wall of the mounting platform 47 protrudes outward to form a pointing block 46, the pointing block 46 passes through the pointing groove 11 and is exposed to the outside, when the clamping assembly 4 is in the initial position, the bottom surface of the pointing block 11 is flush with the lowest point of the scale line 12, when the adjusting member 5 is started and the height of the clamping assembly is adjusted, the moving height of the pointing block 11 is the moving height of the clamping assembly 4, which can be directly observed through the scale line.

[0029] The lower surface of the clamping arm 41 is detachably connected to the tooth plate 42. The tooth plate 42 is "L"-shaped, with the long side facing downward and the short side fixedly connected to the front end of the clamping arm 41 by bolts. The upper surface of the long side of the tooth plate 42 is raised to form a block 45. The cross-sectional shape of the block 45 is an isosceles trapezoid. The lower surface of the clamping arm 41 is concave to form a slot 44 matching the block 45. The tooth plate 42 is inserted into the slot 44 through the block 45 and then fixed by bolts.

[0030] The lower surface of the tooth plate 42 is concave at intervals to form teeth for increasing friction and clamping metal workpieces. After long-term use and severe wear, the tooth plate 42 can be replaced without overall replacement, thus reducing costs.

[0031] At the beginning of the clamping assembly 4, the clamping arm 41 is horizontal and fits with the pad 24. The height adjustment of the clamping assembly 4 is determined according to the thickness of the metal workpiece. The height of the clamping assembly 4 is adjusted by the adjusting member 5 and observed through the scale line 12 until the rising height is consistent with the thickness of the metal workpiece, the adjusting member 5 is closed, and then the second hydraulic rod 43 is started to reduce the angle of the clamping arm 41 until the metal workpiece is clamped. The metal workpiece is located between the pad 24 and the tooth plate 42. Since the rising height is consistent with the thickness of the metal workpiece, the clamping arm 41 is still in a horizontal state when clamping the metal workpiece. The force on both sides of the metal workpiece is balanced and the clamping is stable. At the same time, the pad 24 and the tooth plate 42 increase the friction to further improve the clamping stability. In particular, when multiple metal workpieces are sheared together, it can be avoided that the outer metal workpiece is not subjected to force and is not clamped, and misaligned during shearing to avoid accidentally injuring surrounding personnel.

[0032] The first hydraulic rod 31, the second hydraulic rod 43 and the adjusting member 5 are all connected to the external control end, and can be controlled to be opened or closed through the control end. Of course, a program can also be set to accurately control the telescopic length of the first hydraulic rod 31 and the second hydraulic rod 43 and the lifting height of the adjusting member 5. This is more intelligent and does not require manual observation.

[0033] A method of using the scissors that are convenient for cutting in this embodiment is as follows:

[0034] First, start the first hydraulic rod 31 and the second hydraulic rod 43 respectively, lift the movable tool holder 3 and the clamping arm 41 to form an angle with the horizontal direction, then take out the metal workpiece to be sheared and place it on the feeding platform 21, adjust the part of the metal workpiece extending out of the feeding platform 21 and located above the discharge slope 22 to a suitable length, then start the adjustment member 5 to slowly lift the height of the adjustment component 4, observe the scale line 12, until the height of the pointing block 46 moving along the pointing slot 11 is consistent with the thickness of the metal workpiece, close the adjustment member 5, and then start the second hydraulic rod 43 again to move it downward to gradually clamp the metal workpiece. Since the lifting height of the clamping component 4 is consistent with the thickness of the metal workpiece, when the second hydraulic rod 43 clamps the metal workpiece, the whole is horizontal, the forces on both sides of the metal workpiece are balanced, the clamping component 4 is stably clamped, and the metal workpiece is not easily misplaced.

[0035] Then, the first hydraulic rod 31 is started to gradually close the movable knife seat 3 and intersect with the fixed knife seat 2. With the cooperation of the blades of the two, the metal workpiece is sheared. The sheared metal workpiece slides down the discharge slope 22. After use, the second hydraulic rod 43 is started to lift the clamping arm 41 to remove the excess residual material of the metal workpiece. Finally, the clamping assembly 4 is restored to its original position through the adjustment member 5, and the clamping arm 41 is also restored to its original position through the second hydraulic rod 43 for next use.

[0036] The above embodiments are only for illustrating the technical idea of ​​the present utility model, and cannot be used to limit the protection scope of the present utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A pair of scissors that are easy to cut, characterized by: The invention comprises a base (1), a fixed knife seat (2), a movable knife seat (3), a clamping assembly (4) and an adjusting member (5), wherein the base (1) is grounded, the fixed knife seat (2) is connected to the base (1), one side of the fixed knife seat (2) is a feeding platform (21), and the other side is a discharging slope (22), a detachable pad (24) is provided on the feeding platform (21), the root of the movable knife seat (3) is rotatably connected to the base (1), the movable knife seat (3) is located above the discharging slope (22), the outwardly protruding block at the root of the movable knife seat (3) is connected to the base (1) through a first hydraulic rod (31), the adjusting member (5) is arranged inside the base (1), the clamping assembly (4) is connected to the upper surface of the adjusting member (5) and is located above the feeding platform (21), and the height of the clamping assembly (4) is adjustable.

2. The scissors for easy cutting according to claim 1, characterized in that: A pointing groove (11) is provided on a side wall of the base (1) close to the clamping assembly (4), and a scale line (12) for observing the height is provided on one side of the pointing groove (11).

3. The scissors for easy cutting according to claim 1, characterized in that: The fixed knife seat (2) and the movable knife seat (3) are mutually fitted and staggered, and the fitting surfaces of the fixed knife seat (2) and the movable knife seat (3) are both provided with a blade for cutting a metal workpiece.

4. The scissors for easy cutting according to claim 1, characterized in that: The feeding platform (21) is provided with a fixing groove (23) for mounting a pad (24), a limiting block (25) is provided on one side of the fixing groove (23), an insert block (26) is provided at the bottom end of the limiting block (25), and a matching slot (27) is provided on the bottom surface of the fixing groove (23).

5. The scissors for easy cutting according to claim 1, characterized in that: The upper surface of the pad (24) is provided with an array of bumps for increasing friction.

6. The scissors for easy cutting according to claim 2, characterized in that: The clamping assembly (4) comprises a mounting platform (47), the base of the clamping arm (41) is rotatably connected to the mounting platform (47), the head of the clamping arm (41) is connected to one end of a second hydraulic rod (43), the other end of the second hydraulic rod (43) is connected to a portion extending upward from the mounting platform (47), and a pointing block (46) is provided at the bottom of a side wall of the mounting platform (47), the pointing block (46) passing through the pointing slot (11).

7. The scissors for easy cutting according to claim 6, characterized in that: The lower surface of the clamping arm (41) is provided with a toothed plate (42), the mating surface of the toothed plate (42) and the clamping arm (41) is provided with a clamping block (45), the lower surface of the clamping arm (41) is provided with a matching clamping groove (44), and the lower surface of the toothed plate (42) is provided with teeth for increasing friction.

8. The scissors for easy cutting according to claim 1, characterized in that: The adjusting member (5) is an electric scissor jack.

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