Scissors convenient to adjust

Abstract

The scissors convenient to adjust comprise a portal frame, a fixed knife assembly and a plurality of movable knife assemblies, the movable knife assemblies are all hung on a cross beam of the portal frame through hydraulic rods, and movable knife edges of the movable knife assemblies face downwards and point to fixed knife edges on the fixed knife assembly in a one-to-one correspondence mode. Each movable cutter assembly comprises a movable cutter mounting seat and two movable blades, and each fixed cutter assembly comprises a fixed cutter mounting seat and a plurality of fixed blades. The independent hydraulic rod is arranged to be connected with the movable cutter assembly, shearing control over the independent movable cutter assembly is achieved, the fixed blades are arranged on all the inner walls of the fixed cutter installation base of the rectangular frame structure, and matched shearing can be achieved no matter the movable blades are installed on any adjacent side face of the movable cutter installation base. By arranging the telescopic spring and the abutting ring to abut against the movable blade, when the gap of the joint of the movable blade and the movable blade installation base is changed, fine adjustment of the angle between the blade and the shearing face is achieved, and the shearing difficulty is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal plate processing, and in particular relates to a pair of scissors which are easy to adjust. Background Art

[0002] Shearing machine is a kind of machine tool. It adopts hydraulic drive, has reliable safety performance and is easy to operate. Shearing machine is suitable for metal recycling processing plants, scrap car dismantling yards, smelting and casting industries. It can perform cold shearing and flanging of various shapes of steel and various metal materials, as well as press forming of powder products, plastics, fiberglass, insulating materials and rubber. Shearing machine is divided into different types: metal shearing machine, combined punching and shearing machine, hydraulic shearing machine and bar shearing machine.

[0003] One of the important components of a shearing machine is a shearing head. Current shearing heads generally have certain drawbacks when in use. For example, a Chinese utility model patent with publication number CN215356388U discloses a shearing body and a shearing machine for a shearing machine. The shearing body in the above patent often needs to be installed using multiple mounting screws, which is troublesome to install and inconvenient to fine-tune the shearing head on the knife seat. In addition, the shearing head in the prior art often mounts several blades on the knife seat in a unified manner. When metal shearing is required, only the overall knife seat can be operated, and fine shearing cannot be performed. Therefore, improvement is needed. Utility Model Content

[0004] The utility model aims to provide an adjustable scissors, and solves the technical problem that the scissors of the shearing machine in the prior art can only achieve shearing through the operation of the integral knife seat and the extrusion of the fixed knife.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a pair of scissors which are easy to adjust, comprising a gantry, a fixed knife assembly and a plurality of movable knife assemblies, wherein the plurality of movable knife assemblies are all suspended on the crossbeam of the gantry through hydraulic rods, and the movable knife edges of the movable knife assemblies are all downwardly directed to the fixed knife edges on the fixed knife assemblies in a corresponding manner.

[0007] By setting a separate hydraulic rod connected to the movable knife assembly, the control of the separate movable knife assembly is achieved, and by correspondingly pointing the movable knife edge of the movable knife assembly and the fixed knife edge of the fixed knife assembly, the shearing of the metal plate is achieved through the cooperation of the cutting edges.

[0008] Optionally, each movable knife assembly includes a movable knife mounting seat and two movable blades, the movable knife mounting seat is connected to the end of the hydraulic rod, and the movable knife mounting seat has a rectangular cross section; the two movable blades are movably arranged at 90 degrees on two adjacent outer sides of the movable knife mounting seat, and movable blade edges are arranged on the movable blades. By arranging movable blades on the adjacent two side surfaces of the movable knife mounting seat, metal shearing is achieved while reducing the number of blades, and the smoothness of shearing is increased by arranging the matching fixed blade edges.

[0009] Optionally, each fixed blade assembly includes a fixed blade mounting seat and a plurality of fixed blades, the fixed blade mounting seat is fixed at the bottom of the gantry, and the cross-section of the fixed blade mounting seat is a rectangular frame structure, the plurality of fixed blades are correspondingly arranged on the inner wall of the moving blade mounting seat, the plurality of fixed blades are provided with fixed blade edges, and each moving blade is correspondingly pointed to the fixed blade. By arranging fixed blades on each inner wall of the fixed blade mounting seat of the rectangular frame structure, the moving blades can achieve coordinated shearing regardless of whether they are installed on any adjacent side of the moving blade mounting seat.

[0010] Optionally, a pair of abutment holes for adjusting the shearing angle of the moving blade is provided on the side of the moving blade mounting seat. The pair of abutment holes are symmetrically opened on both sides of the connection point between the moving blade and the moving blade mounting seat. Abutment rings and telescopic springs are provided in each of the abutment holes. One end of the telescopic spring is fixed to the inner wall of the abutment hole, and the other end is fixed to the abutment ring. The abutment ring is always in abutment with the mounting surface of the moving blade.

[0011] Optionally, two pairs of mounting holes are provided on each side of the movable knife mounting seat, one pair of the two pairs of mounting holes is on the same horizontal plane as the abutment holes in the vertical direction, and the other pair is lower than the opening position of the abutment holes in the vertical direction.

[0012] Optionally, the movable blade is threadedly connected to one of the pairs of mounting holes via an adjusting bolt.

[0013] By setting two groups of mounting holes, when the shearing angle of the moving blade needs to be adjusted, the moving blade is installed at the lower side end of the two pairs of mounting holes through the adjusting bolts. By changing the access depth of the adjusting bolts, the cutting angle between the moving blade and the metal to be sheared can be fine-tuned under the action of the telescopic spring.

[0014] In the technical solution, by arranging a telescopic spring and an abutment ring to abut against the movable blade, when the gap at the connection between the movable blade and the movable blade mounting seat is changed, the angle between the blade and the shearing surface can be fine-tuned to reduce the difficulty of shearing.

[0015] Optionally, the fixed blade is of a bent structure, and the bent portion of the movable blade is provided with a rounded corner matched with a movable blade mounting seat to reduce breakage of the movable blade.

[0016] Beneficial effects and advantages of the utility model:

[0017] The benefits of these easily adjustable scissors include:

[0018] By setting a separate hydraulic rod connected to the movable knife assembly, the control of the separate movable knife assembly is achieved, and by correspondingly pointing the movable knife edge of the movable knife assembly and the fixed knife edge of the fixed knife assembly, the shearing of the metal plate is achieved through the cooperation of the cutting edges.

[0019] By arranging moving blades on the adjacent two side surfaces of the moving blade mounting seat, the metal shearing is achieved while reducing the number of blades, and the smoothness of shearing is increased by arranging the matching fixed blade edge. By arranging fixed blades on each inner wall of the fixed blade mounting seat of the rectangular frame structure, the moving blade can achieve coordinated shearing regardless of whether it is installed on any adjacent side surface of the moving blade mounting seat. By arranging a telescopic spring and an abutment ring to abut the moving blade, when the gap at the connection between the moving blade and the moving blade mounting seat is changed, the angle between the moving blade and the shearing surface can be finely adjusted, thereby reducing the difficulty of shearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is an enlarged schematic diagram of the structure of the movable knife assembly of the utility model;

[0022] Figure 3 This is a schematic cross-sectional view of the movable knife mounting seat of the utility model;

[0023] Figure 4 It is a cross-sectional structural schematic diagram of the movable blade shearing angle fine adjustment of the utility model;

[0024] Figure 5 It is an enlarged schematic diagram of the fixed knife assembly structure of the utility model;

[0025] Figure 6 It is a schematic diagram of the structure of the utility model when in use.

[0026] In the figure: 1-gantry, 2-moving knife assembly, 22-moving knife mounting seat, 221-abutment hole, 223-abutment ring, 224-telescopic spring, 23-moving blade, 24-mounting hole, 25-adjusting bolt, 26-moving knife edge, 27-rounded corner, 3-fixed knife assembly, 31-fixed knife mounting seat, 32-fixed blade, 33-fixed knife edge. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model. Example

[0028] like Figures 1 to 6As shown, a pair of scissors that are easy to adjust are provided, including a gantry 1, a movable knife assembly 2, a fixed knife assembly 3 and a hydraulic rod 4. In this embodiment, the movable knife assembly 2 is driven by the hydraulic rod 4 to move toward and shear the metal material placed on the fixed knife assembly 3, wherein the end of the fixed knife assembly 3 is preferably connected to a conveyor belt in the prior art, and the metal sheet to be sheared is transported to the fixed knife assembly 3 through the conveyor belt, wherein the bottom of the gantry 1 also includes a sensor in the prior art to detect, identify and control the shearing of the metal sheet transported to the fixed knife assembly 3.

[0029] refer to Figure 1 and Figure 2 As shown, in this embodiment, the movable knife assembly 2, the fixed knife assembly 3 and the hydraulic rod 4 are adapted to be multiple, wherein each movable knife assembly 2 includes a movable knife mounting seat 22, wherein each movable knife mounting seat 22 is suspended on the crossbeam of the gantry 1 through the hydraulic rod 4;

[0030] refer to Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, each movable knife mounting seat 22 has at least two adjacent side surfaces fixed with movable blades 23, wherein the movable knife mounting seat 22 is preferably a rectangular structure, and the two movable blades 23 are movably connected at 90 degrees to the two adjacent outer sides of the movable knife mounting seat 22. In this embodiment, the two movable blades 23 of each movable knife mounting seat 22 are fixed in the mounting holes 24 on the side surfaces of the movable knife mounting seat 22 by adjusting bolts 25;

[0031] refer to Figure 5 As shown, in this embodiment, each fixed knife assembly 3 includes a fixed knife mounting seat 31, wherein the fixed knife mounting seat 31 is preferably a hollow rectangular frame structure fixed to the bottom of the gantry 1, wherein a fixed blade 32 is fixed to the inner wall of each fixed knife mounting seat 31;

[0032] refer to Figure 2 and Figure 5 As shown, in this embodiment, the movable blade 23 is provided with a movable blade edge 26 downward, and the fixed blade 32 is provided with a fixed blade edge 33 upward, wherein each movable blade 23 faces the fixed blade 32 in a one-to-one correspondence.

[0033] refer to Figure 6 As shown, when in use, the metal sheet to be sheared is placed on the fixed knife mounting seat 31, and the hydraulic rod 4 moves up and down to drive the movable knife mounting seat 22 to move. The movable blade 23 located on the adjacent side of the movable knife mounting seat 22 fits with the fixed blade 32 on the inner wall of the fixed knife mounting seat 31 fixed at the bottom of the gantry 1 to perform shearing movement to achieve shearing of the metal sheet. By adopting multiple separate movable knife mounting seats 22 to control, local refined shearing of the metal sheet can be achieved.

[0034] refer to Figure 2 , Figure 3 and Figure 4 As shown, the mounting holes 24 located on each side of the movable blade mounting seat 22 in this embodiment are preferably a pair, wherein a pair of mounting holes 24 are two pairs at different heights in the vertical direction, wherein the adjusting bolt 25 is threadedly connected to the mounting hole 24, and the operator can choose whether to change the shearing angle of the movable blade 23 and select the position of the mounting hole 24 according to needs.

[0035] In this embodiment, a pair of abutment holes 221 are provided on the side of each movable blade mounting seat 22, wherein the pair of abutment holes 221 are symmetrically provided on both sides of a pair of high side end mounting holes 24, and the pair of abutment holes 221 are symmetrically provided on both sides of the connection point between the movable blade 23 and the movable blade mounting seat 22, wherein a telescopic spring 224 is fixed inside each abutment hole 221, wherein one end of the telescopic spring 224 is fixed on the inner wall of the abutment hole 221 along the opening direction, and the other end is fixedly connected with an abutment ring 223, wherein the abutment ring 223 abuts against the mounting surface of the movable blade 23, and the telescopic spring 224 is always in a compressed state;

[0036] refer to Figure 4 As shown, during use, when it is necessary to change the shearing angle of the movable blade 23, the adjusting bolt 25 is connected to the mounting hole 24 at the lower side end in the vertical direction of the side of the movable blade mounting seat 22. By changing the access depth of the adjusting bolt 25 and the mounting hole 24, the telescopic spring 224 drives the abutment ring 223 to push the high side end of the movable blade 23. At this time, the movable blade 23 forms an angle with the side of the movable blade mounting seat 22, thereby realizing the change of the angle of the movable blade edge 26 when cutting into the metal plate, thereby achieving fine-tuning and reducing the difficulty of shearing.

[0037] In this embodiment, in order to increase the stability of the telescopic spring 224 , a telescopic rod structure in the prior art may be added to the abutting hole 221 to ensure that the telescopic spring 224 is telescoped along the direction of the abutting hole 221 .

[0038] refer to Figure 2 As shown, in this embodiment, the movable blade 23 is of a bent structure to form a wrap angle with the movable blade mounting seat 22, wherein the bending structure of the movable blade 23 and the movable blade mounting seat 22 both adopt matching rounded corners 27, which can reduce breakage at right angles caused by the vertically arranged blade when in use.

[0039] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. A pair of scissors that are easy to adjust, characterized in that: The invention comprises a gantry (1), a fixed knife assembly (3) and a plurality of movable knife assemblies (2); the plurality of movable knife assemblies (2) are all suspended on a crossbeam of the gantry (1) via a hydraulic rod (4); and the movable knife edges (26) of the movable knife assemblies (2) are all downwardly directed towards the fixed knife edges (33) on the fixed knife assemblies (3) in a one-to-one correspondence.

2. The easily adjustable scissors according to claim 1, characterized in that: Each movable knife assembly (2) comprises a movable knife mounting seat (22) and two movable blades (23); the movable knife mounting seat (22) is connected to the end of the hydraulic rod (4), and the movable knife mounting seat (22) has a rectangular cross-section; the two movable blades (23) are movably arranged at 90 degrees on two adjacent outer sides of the movable knife mounting seat (22), and movable knife cutting edges (26) are arranged on the movable blades (23).

3. The easily adjustable scissors according to claim 2, characterized in that: Each fixed knife assembly (3) comprises a fixed knife mounting seat (31) and a plurality of fixed blades (32); the fixed knife mounting seat (31) is fixed to the bottom of the gantry (1); the fixed knife mounting seat (31) has a rectangular frame structure in cross section; the plurality of fixed blades (32) are correspondingly arranged on the inner wall of the movable knife mounting seat (22); fixed knife edges (33) are arranged on the fixed blades (32); and each movable blade (23) points downwardly one by one to the fixed blade (32).

4. The easily adjustable scissors according to claim 3, characterized in that: A pair of abutment holes (221) for adjusting the shearing angle of the moving blade (23) are arranged on the side of the moving blade mounting seat (22); the pair of abutment holes (221) are symmetrically arranged on both sides of the connection point between the moving blade (23) and the moving blade mounting seat (22); an abutment ring (223) and a telescopic spring (224) are arranged in each of the pair of abutment holes (221); one end of the telescopic spring (224) is fixed to the inner wall of the abutment hole (221), and the other end is fixed to the abutment ring (223); the abutment ring (223) is always in abutment with the mounting surface of the moving blade (23).

5. The easily adjustable scissors according to claim 4, characterized in that: Two pairs of mounting holes (24) are provided on each side of the movable knife mounting seat (22), one pair of the two pairs of mounting holes (24) being located on the same horizontal plane as the abutment holes (221) in the vertical direction, and the other pair being located lower than the opening position of the abutment holes (221) in the vertical direction.

6. The easily adjustable scissors according to claim 5, characterized in that: The movable blade (23) is threadedly connected to one of the pair of mounting holes (24) via an adjusting bolt (25).

7. The easily adjustable scissors according to claim 6, characterized in that: The movable blade (23) is of a bent structure, and a rounded corner (27) matching the movable blade mounting seat (22) is provided at the bent portion of the movable blade (23) to reduce the breakage of the movable blade (23).

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