Power saving mechanism for a plate shearing machine

Abstract

This utility model discloses a labor-saving mechanism for a shearing machine, comprising: a pedal transmission component, rotatably mounted on a shearing machine bracket, with one end of a connecting rod pivotally connected to the pedal transmission component and the other end pivotally connected to the end of a moving blade; a pedal with a limiting rod passing through a limiting plate, the limiting plate being fixedly mounted on the shearing machine bracket, and a connecting block slidably connected to the pedal transmission component; and a return spring, with one end fixedly mounted on the shearing machine bracket and the other end fixedly mounted on the pedal. Compared with the prior art, this utility model solves the problems of laborious pedal operation and the safety hazard of the foot slipping off the pedal during the shearing process of existing shearing machines.

Description

Technical Field

[0001] This utility model relates to the field of shearing machine technology, and in particular to a labor-saving mechanism for shearing machines. Background Technology

[0002] When processing metal sheet and strip, the shearing machine is driven by a lever or handle operated manually, which is converted into a vertical shearing motion of the blade through a crank-connecting rod mechanism or eccentric shaft, without the need for electricity.

[0003] See appendix Figure 1-2 Traditional shearing machines are widely used in the processing of sheet and strip metal, but they have the following main drawbacks:

[0004] 1) The shearing process is labor-intensive: The shearing process relies entirely on manual labor without any labor-saving device. After the pedal 101 is pressed down, it needs to rely on the spring 102 to recover. Therefore, pressing the pedal 101 requires overcoming the tension of the spring 102. During the pressing of the pedal 101, the pedal tilts, causing the force applied by the operator when pressing the pedal 101 to be non-perpendicular to the ground. As the tilt angle of the pedal 101 increases, the force required to press the pedal 101 will become greater and greater.

[0005] 2) Safety hazard exists: As the operator presses down on pedal 101, the angle between the pedal and the ground increases, making it easy for the operator's foot to slip off pedal 101. When pedal 101 suddenly loses its downward force, it will quickly bounce upward under the contraction force of spring 102. This process occurs almost simultaneously with the foot sliding off pedal 101. At this time, the operator's leg is above pedal 101, and the rapid bounce of pedal 101 will cause it to hit the operator's leg at an extremely high speed, posing a serious safety hazard. Utility Model Content

[0006] The purpose of this utility model is to provide a labor-saving mechanism for a shearing machine to solve the problems of difficult pedal operation and the safety hazard of the foot slipping off the pedal during the shearing process of existing shearing machines.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a labor-saving mechanism for a shearing machine, comprising:

[0008] The pedal transmission component is rotatably mounted on the shearing machine bracket, with one end of the connecting rod pivotally connected to the pedal transmission component and the other end pivotally connected to the end of the moving blade.

[0009] The pedal is equipped with a limit rod, which passes through a limit piece. The limit piece is fixedly installed on the shearing machine bracket. The pedal is equipped with a connecting block, which is slidably connected to the pedal transmission component.

[0010] The return spring has its first end fixedly mounted on the shearing machine bracket and its opposite end fixedly mounted on the pedal.

[0011] As a further description of the above technical solution:

[0012] A buffer spring is fitted on the limit rod, with one end of the buffer spring contacting the pedal and the other end contacting the limit plate.

[0013] As a further description of the above technical solution:

[0014] The limit bar is detachably mounted on the pedal.

[0015] As a further description of the above technical solution:

[0016] The limit rod is a bolt, which passes through the limit plate and is threaded onto the pedal.

[0017] As a further description of the above technical solution:

[0018] The pedal transmission component has a waist-shaped hole, into which the connecting block extends.

[0019] As a further description of the above technical solution:

[0020] The pedals are equipped with anti-slip components.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0022] 1. In this utility model, compared to the traditional shearing machine pedal, the pedal is divided into two parts: a pedal and a pedal transmission component, which are connected by a slotted mechanism. The pedal is guided by a limiting rod, so that the pedal only moves in the vertical direction, saving the wasted effort applied in the forward and backward direction. The improved shearing machine pedal only moves vertically, preventing the foot from slipping off the pedal due to pedal tilting.

[0023] 2. In this invention, after the pedal is released, the return spring drives the pedal upward. At this time, the buffer spring is compressed by the pedal, blocking its upward movement and controlling its upward speed. This avoids safety hazards caused by excessively fast pedal return speed, ensuring the pedal safely returns to its initial position and improving safety. When the pedal moves downward, the return spring is stretched, and the buffer spring is released from compression, allowing it to provide downward auxiliary force and reduce pedal resistance. Attached Figure Description

[0024] 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.

[0025] Figure 1 Axonometric view of an existing shearing machine Figure 1 .

[0026] Figure 2 Axonometric view of an existing shearing machine Figure 2 .

[0027] Figure 3 A schematic diagram of a labor-saving mechanism for a shearing machine. Figure 1 .

[0028] Figure 4 A schematic diagram of a labor-saving mechanism for a shearing machine. Figure 2 .

[0029] Figure 5 This is a schematic diagram of the installation of a pedal in a labor-saving mechanism for a shearing machine. Figure 1 .

[0030] Figure 6 This is a schematic diagram of the installation of a pedal in a labor-saving mechanism for a shearing machine. Figure 2 .

[0031] Figure 7 This is a schematic diagram showing the state changes of a pedal in a force-saving mechanism used in a shearing machine.

[0032] Legend:

[0033] 1. Shearing machine bracket; 2. Return spring; 3. Moving blade; 31. Fixed blade; 4. Platform; 5. Connecting rod; 6. Pedal; 61. Connecting block; 7. Pedal transmission component; 71. Waist-shaped hole; 8. Limiting rod; 9. Buffer spring; 10. Limiting plate. Detailed Implementation

[0034] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1

[0036] Please see Figure 3-7 This utility model provides a technical solution: a labor-saving mechanism for a shearing machine, comprising:

[0037] The pedal transmission component 7 is rotatably mounted on the shearing machine bracket 1. One end of the connecting rod 5 is pivotally connected to the pedal transmission component 7, and the other end is pivotally connected to the end of the moving blade 3.

[0038] The pedal 6 is provided with a limit rod 8, which passes through a limit piece 10. The limit piece 10 is fixedly installed on the shearing machine bracket 1. The pedal 6 is provided with a connecting block 61, which is slidably connected to the pedal transmission component 7.

[0039] The return spring 2 has its first end fixedly mounted on the shearing machine bracket 1 and its opposite end fixedly mounted on the pedal 6.

[0040] The cutting steps of the shearing machine are as follows:

[0041] S1. Place the material: Place the material to be cut in a suitable position on the stage 4;

[0042] S2, Perform shearing: Depress pedal 6, pedal 6 moves vertically downward, and drives pedal transmission component 7 to move downward in an arc through the slot connection structure;

[0043] S3, the pedal transmission component 7 pulls the moving blade 3 downward through the connecting rod 5, and the moving blade 3 cooperates with the fixed blade 31 to cut the material to be sheared;

[0044] S4. Release pedal 6. Pedal 6 returns to its initial position under the tension of return spring 2, and the single shearing is completed.

[0045] Compared to traditional shearing machine pedals, this application divides the pedal into two parts: pedal 6 and pedal transmission component 7, which are connected by a slotted mechanism. Pedal 6 is guided by a limiting rod 8, so that pedal 6 only moves in the vertical direction, saving unnecessary work applied in the forward and backward direction. The improved shearing machine pedal only moves up and down, preventing the foot from slipping off the pedal due to pedal tilting.

[0046] The pedal transmission component 7 is provided with a waist-shaped hole 71, and the connecting block 61 extends into the waist-shaped hole 71. The connecting block 61 slides in the waist-shaped hole 71, so that when the pedal 6 is pressed, the downward connecting block 61 slides in the waist-shaped hole 71 and squeezes the pedal transmission component 7 to rotate downward.

[0047] Working principle: In traditional shearing machines, the pedal moves both forward and backward when depressed. However, in this application, the pedal 6 only moves vertically, saving unnecessary work in the forward and backward direction. When the guillotine descends to the same degree as before, the pedal descent is significantly reduced. That is, even with a reduced pedal depressor depth, the same shearing effect can be achieved. See appendix. Figure 7 The downward pressure h1 of the shearing machine pedal is much smaller than the downward pressure h of the traditional shearing machine pedal.

[0048] The improved shearing machine with a labor-saving mechanism features a simple structure and convenient operation. Its optimized ergonomic design makes operation more convenient and faster, reducing workload and increasing efficiency. At the same time, the simple design makes the equipment easy to maintain, reducing the difficulty of daily upkeep.

[0049] Example 2

[0050] This embodiment further improves upon the above embodiment by providing the following technical solution: the limiting rod 8 is detachably mounted on the pedal 6. Specifically, the limiting rod 8 is a bolt, which passes through the limiting piece 10 and is threaded onto the pedal 6.

[0051] The limit rod 8 is detachable and replaceable, making it easy to disassemble and adjust the buffer spring 9, which makes the pedal 6 easy to maintain.

[0052] Example 3

[0053] Based on the above embodiments, this embodiment further improves upon the following technical solution: a buffer spring 9 is sleeved on the limiting rod 8, with one end of the buffer spring 9 contacting the pedal 6 and the other end contacting the limiting piece 10.

[0054] When pedal 6 is released, the return spring 2 causes pedal 6 to move upward. At this time, the buffer spring 9 is compressed by pedal 6, blocking pedal 6 from moving upward, controlling the upward speed of pedal 6, and avoiding the safety hazard caused by the pedal returning too quickly. Pedal 6 safely returns to its initial position, improving safety. When pedal 6 moves downward, the return spring 2 is stretched, and the buffer spring 9 is released from compression, allowing the buffer spring 9 to provide downward auxiliary force, reducing the pedal resistance of pedal 6.

[0055] Example 4

[0056] Based on the above embodiments, this embodiment further improves upon the following technical solution: anti-slip components are provided on the pedal 6.

[0057] Anti-slip components can be in the form of fixed rubber anti-slip pads or processed anti-slip protrusions and anti-slip grooves to further prevent the user's foot from slipping off the pedal.

[0058] 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 labor-saving mechanism for a shearing machine, characterized in that, include: A pedal transmission component is rotatably mounted on a shearing machine bracket, with one end of a connecting rod pivotally connected to the pedal transmission component and the other end pivotally connected to the end of a moving blade. A pedal is provided with a limit rod, which passes through a limit piece. The limit piece is fixedly installed on the shearing machine bracket. A connecting block is provided on the pedal and is slidably connected to the pedal transmission component. The return spring has its first end fixedly mounted on the shearing machine bracket and its opposite end fixedly mounted on the pedal.

2. The labor-saving mechanism for a shearing machine according to claim 1, characterized in that, A buffer spring is fitted on the limiting rod, with one end of the buffer spring contacting the pedal and the other end contacting the limiting piece.

3. The labor-saving mechanism for a shearing machine according to claim 1, characterized in that, The limiting rod is detachably mounted on the pedal.

4. A labor-saving mechanism for a shearing machine according to claim 3, characterized in that, The limiting rod is a bolt, which passes through the limiting piece and is threaded onto the pedal.

5. A labor-saving mechanism for a shearing machine according to claim 1, characterized in that, The pedal transmission component is provided with a waist-shaped hole, and the connecting block extends into the waist-shaped hole.

6. A labor-saving mechanism for a shearing machine according to claim 1, characterized in that, The pedal is equipped with anti-slip components.

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