Cold shearing mechanism capable of avoiding burrs of cold shearing head

Abstract

The utility model belongs to the technical field of cold shearing devices, and particularly discloses a cold shearing mechanism capable of avoiding burrs of a cold shearing head, which comprises an air cylinder, an upper shearing blade and a lower shearing blade which are arranged in a machine body, a vertical shaft arranged on one side of the machine body, a connecting cylinder rotatably connected onto the vertical shaft, a supporting plate and a connecting rod which are respectively arranged on the connecting cylinder, one end of the connecting rod is hinged to the telescopic end of the air cylinder, and a connecting unit rotationally connected with the air cylinder is arranged on the machine body. The problems that in the using and producing process of a cold shearing machine, due to the fact that the head of a coil bar finished product is prone to bending when the coil bar finished product is sheared, burrs exist on the section of the sheared finished product, and the subsequent performance or using is affected are solved. Through the arrangement of the supporting plate and the air cylinder, a coil bar is uniformly stressed in the shearing process, so that the section of the sheared coil bar is smooth, burrs are avoided, the quality of a product is improved, the requirement of subsequent secondary processing treatment on the product is reduced, the waste of materials is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cold shearing devices, in particular to a cold shearing mechanism for avoiding burrs on a cold shearing head. Background Art

[0002] The wire rod cold shear device is a device specially used for cutting metal wires or bars. In industrial production, this device plays a vital role because it can efficiently and accurately complete the task of cutting metal materials. It can reduce manual intervention while improving production efficiency; the wire rod cold shear device can operate according to preset requirements to ensure that each product meets strict specifications.

[0003] At present, the cold shear device is mainly composed of a machine body, an upper shearing assembly, a lower shearing assembly, a driving assembly and a supporting mechanism. Its working principle is as follows: first, the wire rod to be sheared is transported to the designated position of the cold shearing machine, and then the upper shearing tool of the cold shearing machine is driven by a powerful power, and the cutting edge of the upper shearing tool contacts the wire rod, and the wire rod is cut off by mechanical force.

[0004] However, in the actual production process of the cold shearing machine, since the head of the wire rod to be cut off is in a suspended state during shearing, the head of the finished wire rod is easy to bend when shearing, resulting in burrs on the cross section of the finished product after shearing, which affects the subsequent performance or use and causes waste of raw materials. Utility Model Content

[0005] The utility model aims to provide a cold shearing mechanism for avoiding burrs on the cold shearing head, so as to solve the problem that, during the production process of the cold shearing machine, the head is easily bent when the finished wire rod is sheared, resulting in burrs on the cross section of the finished product after shearing, thereby affecting the subsequent performance or use.

[0006] In order to achieve the above-mentioned purpose, the basic solution provided by the utility model is: a cold shearing mechanism for avoiding burrs on a cold shearing head, comprising a cylinder, an upper shearing blade and a lower shearing blade are arranged in a machine body, a vertical shaft is arranged on one side of the machine body, a connecting cylinder is rotatably connected to the vertical shaft, a support plate and a connecting rod are respectively arranged on the connecting cylinder, one end of the connecting rod is hinged to the telescopic end of the cylinder, and a connecting unit for rotatably connecting to the cylinder is arranged on the machine body.

[0007] The working principle of the present utility model is as follows: When it is necessary to shear the wire rod, first, the operator starts the air cylinder, causing the telescopic end of the air cylinder to contract, driving the support plate to rotate 90° around the vertical axis, then shutting down the air cylinder. The support plate is located directly below the rod. Then, the cold shear is started, causing the upper shear blade to start descending. Since both ends of the rod are supported by the lower shear blade and the support plate respectively, the rod begins to be bent and deformed and cut. Then, the cold shear is shut down. After the shearing is completed, the cross-section of the wire rod is flat, thus avoiding the phenomenon of burrs. When the wire rod cutting is completed, the operator starts the air cylinder, causing the telescopic end of the air cylinder to extend, driving the support plate to rotate 90° in the opposite direction around the vertical axis until the support plate abuts against the inner wall of the machine body, and then shutting down the air cylinder. The cut head caught on the left side of the support plate during rotation falls into the waste hopper at the bottom of the cold shear as the support plate opens. By circulating in the above steps in sequence, the shearing work of the wire rod is completed until it is finished.

[0008] The beneficial effects of the present utility model are as follows: By setting the support plate and the air cylinder, and controlling the support plate to support the wire rod through the air cylinder, the wire rod is evenly stressed during the shearing process, thus ensuring that the cross-section of the wire rod after shearing is flat, avoiding the generation of burrs, improving the quality of the product, thereby reducing the need for subsequent secondary processing of the product, reducing material waste, and thus reducing production costs.

[0009] Solution two, which is the preference of the basic solution. The connection unit includes a support plate, the support plate is detachably connected to the machine body, a rotating shaft is rotatably connected to the support plate, a collar is provided on the air cylinder, and the rotating shaft is fixedly connected to the collar.

[0010] Solution three, which is the preference of the basic solution. A support block is provided on the inner wall of the machine body on the side away from the vertical axis; setting the support block on the machine body facilitates balancing the stability of the support plate and preventing deformation due to uneven stress.

[0011] Solution four, which is the preference of solution three. Fixed blocks are provided on the inner walls on both sides of the machine body, the fixed blocks are located directly below the support block, a cross plate is provided between the two fixed blocks, several vertical rods are provided on the cross plate, and a connection block is provided on each vertical rod. The connection block and the support block are at the same height; setting the fixed blocks, the cross plate and the vertical rods can further improve the supporting force of the support plate during the cutting of the rod, thereby improving the overall bearing capacity.

[0012] Solution five, which is the preference of the basic solution. A solenoid valve is provided at the air inlet end of the air cylinder, the solenoid valve is electrically connected to a PLC controller, and the PLC controller is connected to a computer; setting the solenoid valve and the PLC controller on the air cylinder facilitates remote control or centralized control of multiple air cylinders.

[0013] Solution six, which is the preference of the basic solution. Several card slots are provided on the support plate; setting the card slots on the support plate facilitates positioning the wire rod, further improving the shearing accuracy, and thus reducing burrs. Brief Description of the Drawings

[0014] Figure 1 is the front view of a cold shearing mechanism for avoiding burrs on the cold shearing head of the present utility model;

[0015] Figure 2 is the top view of a cold shearing mechanism for avoiding burrs on the cold shearing head of the present utility model;

[0016] Figure 3 is Figure 2 the sectional view taken along line A-A in

[0017] Figure 4 is the structural schematic diagram of a cold shearing mechanism for avoiding burrs on the cold shearing head of the present utility model when in use. Detailed Description of the Preferred Embodiment

[0018] The present utility model will be further described in detail below through specific embodiments:

[0019] The reference numerals in the drawings of the specification include: 1 body; 101 upper shear blade; 102 lower shear blade; 2 vertical shaft; 201 connecting cylinder; 202 support plate; 203 connecting rod; 204 card slot; 3 cylinder; 301 support plate; 302 rotating shaft; 303 collar; 4 support block; 5 fixed block; 501 horizontal plate; 502 vertical rod; 503 connecting block.

[0020] As Figures 1 to 4 shown: A cold shearing mechanism for avoiding burrs on the cold shearing head includes a cylinder 3. An upper shear blade 101 and a lower shear blade 102 are arranged inside a body 1. A vertical shaft 2 is fixedly connected to one side of the body 1. A connecting cylinder 201 is rotatably connected to the vertical shaft 2. A support plate 202 and a connecting rod 203 are respectively fixedly connected to the connecting cylinder 201. A plurality of card slots 204 are arranged on the support plate 202. One end of the connecting rod 203 is hinged to the telescopic end of the cylinder 3. A connecting unit for rotatably connecting the cylinder 3 is arranged on the body 1. The connecting unit includes a support plate 301. The support plate 301 is bolted to the body 1. A rotating shaft 302 is rotatably connected to the support plate 301. A collar 303 is fixedly connected to the cylinder 3. The rotating shaft 302 is fixedly connected to the collar 303. An electromagnetic valve is arranged at the air inlet end of the cylinder 3. The electromagnetic valve is electrically connected to a PLC controller. The PLC controller is connected to a computer.

[0021] A support block 4 is fixedly connected to the inner wall of the body 1 far from the vertical shaft 2. Fixed blocks 5 are fixedly connected to the inner walls on both sides of the body 1. The fixed blocks 5 are located directly below the support block 4. A horizontal plate 501 is fixedly connected between the two fixed blocks 5. A plurality of vertical rods 502 are fixedly connected to the horizontal plate 501. A connecting block 503 is fixedly connected to each vertical rod 502. The connecting block 503 and the support block 4 are at the same height.

[0022] The implementation mode of this embodiment is as follows: when it is necessary to shear the wire rod, first, the operator inputs an instruction on the PLC controller through the computer, so that the solenoid valve coil is energized. The solenoid valve causes the telescopic end of the cylinder 3 to contract, and drives the pallet 202 to rotate 90° around the vertical shaft 2 until the other end of the pallet 202 is located on the support block 4, and the pallet 202 is directly below the rod. Then, the cylinder 3 is shut down, and then the cold shear is started, so that the upper shear blade 101 begins to descend. Since both ends of the rod are supported by the lower shear blade 102 and the pallet 202 respectively, the rod begins to be bent and deformed and cut. Then, the cold shear is shut down. After the shearing is completed, the cross-section of the wire rod is flat, thus avoiding the phenomenon of burr generation; when the wire rod cutting is completed, first, the operator inputs an instruction on the PLC controller through the computer, so that the solenoid valve coil is de-energized. The solenoid valve causes the telescopic end of the cylinder 3 to extend, and drives the pallet 202 to rotate 90° in the opposite direction around the vertical shaft 2 until the pallet 202 abuts against the inner wall of the machine body 1. Then, the cylinder 3 is shut down. The cut head clamped on the left side of the pallet 202 falls into the waste hopper at the bottom of the cold shear along with the opening of the pallet 202; the above steps are cycled in sequence until the shearing work of the wire rod is completed.

[0023] The above are only the embodiments of the present invention, and common knowledge such as the specific structure and characteristics known in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. A cold shearing mechanism for avoiding burrs on a cold shearing head, characterized in that: The invention comprises a cylinder (3), an upper shearing blade (101) and a lower shearing blade (102) are arranged in a machine body (1), a vertical shaft (2) is arranged on one side of the machine body (1), a connecting cylinder (201) is rotatably connected to the vertical shaft (2), a supporting plate (202) and a connecting rod (203) are respectively arranged on the connecting cylinder (201), one end of the connecting rod (203) is hinged to the telescopic end of the cylinder (3), and a connecting unit for rotatably connecting to the cylinder (3) is arranged on the machine body (1).

2. A cold shearing mechanism for avoiding burrs on a cold shearing head according to claim 1, characterized in that The connection unit comprises a support plate (301), the support plate (301) is detachably connected to the machine body (1), a rotating shaft (302) is rotatably connected to the support plate (301), a sleeve ring (303) is provided on the cylinder (3), and the rotating shaft (302) is fixedly connected to the sleeve ring (303).

3. A cold shearing mechanism for avoiding burrs on a cold shearing head according to claim 1, characterized in that: A support block (4) is provided on the inner wall of the machine body (1) at a side away from the vertical axis (2).

4. A cold shearing mechanism for avoiding burrs on a cold shearing head according to claim 3, characterized in that: The inner walls of both sides of the machine body (1) are provided with fixed blocks (5), the fixed blocks (5) are located directly below the support blocks (4), a horizontal plate (501) is provided between the two fixed blocks (5), a plurality of vertical rods (502) are provided on the horizontal plate (501), each of the vertical rods (502) is provided with a connecting block (503), and the connecting block (503) and the support block (4) are located at the same height.

5. A cold shearing mechanism for avoiding burrs on a cold shearing head according to claim 1, characterized in that The air inlet end of the cylinder (3) is provided with a solenoid valve, the solenoid valve is electrically connected to a PLC controller, and the PLC controller is connected to a computer.

6. A cold shearing mechanism for avoiding burrs on a cold shearing head according to claim 1, characterized in that: The support plate (202) is provided with a plurality of slots (204).

Images