Cutting device of steel wire cold-drawing machine

Abstract

The utility model discloses a cutting device of a steel wire cold-drawing machine, which relates to the technical field of steel wire processing equipment, and has the technical scheme that the cutting device comprises a rack, a fixed cutter and a movable cutter, a power piece is arranged on the rack, two clamping frames I are arranged on the rack, two clamping frames II are connected to the power piece in a sliding manner, and an elastic piece is arranged on the power piece. When the steel wire abuts against the movable cutter and the fixed cutter, the first clamping frame and the second clamping frame jointly clamp the steel wire, along with the process that the movable cutter and the fixed cutter cut the steel wire, the first clamping frame abuts against the second clamping frame to enable the second clamping frame to overcome the elastic piece to slide along the power piece, the elastic piece provides larger extrusion force for the second clamping frame, and therefore the steel wire is clamped. The clamping frame I and the clamping frame II are arranged, so that the clamping force provided by the clamping frame I and the clamping frame II for the steel wire is stronger, the steel wire can be effectively prevented from falling off, and when the steel wire is cut off, as the two sides of a fracture of the steel wire are clamped by the clamping frame I and the clamping frame II, the ejection phenomenon is not easy to occur, a baffle plate does not need to be mounted, and the step of regularly replacing the baffle plate is omitted.

Description

Technical Field

[0001] This utility model relates to the technical field of steel wire processing equipment, and more specifically, to a cutting device for a cold drawing machine for steel wire. Background Technology

[0002] Steel wire is one of the four major types of steel (plates, pipes, profiles, and wires). It is a product formed by processing hot-rolled wire rods through equipment such as cold drawing machines. It has the characteristics of being slender and continuous, and is widely used in industry, construction, transportation and other fields.

[0003] The cold drawing machine includes a feeding device, a cold drawing die assembly, and a winding device. A cutting device is also installed between the cold drawing die assembly and the winding device. After the winding device collects the steel wire of the required length, the cutting device cuts the steel wire. Most existing cutting devices consist of a fixed blade and a moving blade, with the moving blade being pressured by a power component such as a hydraulic cylinder or a pneumatic cylinder.

[0004] When the moving and fixed blades cut the steel wire, there are no restraint devices on both sides of the wire break. At the moment the wire is cut, the residual shear stress causes the wire to break apart at the break, which can easily cause the wire to bounce at the break point, potentially resulting in accidental injury to personnel or damage to equipment. To avoid this phenomenon, baffles are installed on both sides of the cutting device in actual production. Although the baffles can effectively prevent the above phenomenon from occurring, the collision of the wire break with the baffles will generate a lot of noise. In addition, the baffles need to be replaced regularly, which is inconvenient.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cutting device for a cold drawing machine for steel wire.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a cutting device for a cold drawing machine for steel wire, including a frame, a fixed blade, and a moving blade. The frame is provided with a power component for reciprocating the moving blade. The frame is provided with two clamping frames one. Two clamping frames two are slidably connected to the power component. The power component is provided with an elastic component. The elastic component provides a force for the clamping frames two to move toward the clamping frames one. The clamping frames one and two clamping frames two are used together to clamp the steel wire. The two clamping frames one are respectively arranged at the front and rear ends of the fixed blade, and the two clamping frames two are respectively arranged at the front and rear ends of the moving blade.

[0008] The present invention is further configured such that: the power component includes an output shaft fixedly connected to the moving blade, the two clamping frames are slidably connected to the output shaft through a ring sleeve, a groove is provided on the outer peripheral wall of the output shaft, and a slider is provided on the inner peripheral wall of the ring sleeve that slides in the groove.

[0009] The present invention is further configured such that: the slide groove extends to the end face of the output shaft, and a threaded hole is provided on the side wall of the slide groove, and a fixing screw for fixing the moving tool is threaded into the threaded hole.

[0010] The present invention is further configured such that the cutting edge of the fixed knife is set with the sides higher and the middle lower, and the top surface of the clamping frame is flush with the lowest point of the cutting edge of the fixed knife.

[0011] The present invention is further configured such that: rubber strips are fixed on the side walls of the clamping frame two facing the clamping frame one.

[0012] The present invention is further configured such that: a plurality of friction grooves are formed on the side wall of the rubber strip facing the clamping frame.

[0013] In summary, this utility model has the following beneficial effects:

[0014] When the wire needs to be cut, the power unit moves the moving blade, whose cutting edge contacts the wire and moves it towards the position of the fixed blade. When the outer wall of the wire is in contact with the cutting edges of the moving and fixed blades, clamping frames one and two together clamp the portion of the wire located on both sides of the fixed and moving blades. Then, under the action of the power unit, the moving blade continues to move towards the fixed blade. At this time, clamping frames one and two contact each other, causing clamping frame two to slide along the power unit against the force of the elastic element. The elastic element is made of a compression spring. When compressed, the elastic element provides greater support to clamping frame two. The compressive force makes the clamping force provided by clamping frame one and clamping frame two stronger, which can effectively prevent the steel wire from coming out of clamping frame one and clamping frame two. With the cooperation of the moving blade and the fixed blade, the steel wire is cut. Since both sides of the steel wire break are clamped by clamping frame one and clamping frame two, the steel wire break is not prone to ejection. The shear stress remaining on the steel wire break is converted into vibration and absorbed by clamping frame one and clamping frame two. This eliminates the need to install baffles on the frame, avoids the noise of the ejected steel wire hitting the baffle, and also eliminates the need for operators to replace the baffles regularly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a partial sectional view of the present invention.

[0017] In the diagram: 1. Frame; 101. Output shaft; 2. Fixed tool; 3. Moving tool; 4. Power component; 5. Clamping frame one; 6. Clamping frame two; 7. Elastic component; 8. Slide groove; 9. Slider; 10. Threaded hole; 11. Fixing screw; 12. Rubber strip. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Cutting device for cold drawing of steel wire, such as Figure 1 As shown, the device includes a frame 1, a fixed blade 2 fixedly mounted on the frame 1, and a movable blade 3 mounted above the fixed blade 2. A power component 4 for reciprocating motion of the movable blade 3 is fixedly mounted on the frame 1. Two clamping frames 5 are provided on the frame 1. Two clamping frames 6 are slidably connected to the power component 4. An elastic element 7 is provided on the power component 4. A circular plate is fixed on the output shaft 101. The two ends of the elastic element 7 abut against the circular plate and the two clamping frames, respectively. The elastic element 7 provides a guide for the clamping frames 6 to move towards the clamping frames 5. The power unit 4 moves the moving blade 3, with the clamping frame 5 and clamping frame 6 aligned in pairs and used together to clamp the steel wire. The two clamping frames 5 are respectively positioned at the front and rear ends of the fixed blade 2, and the two clamping frames 6 are respectively positioned at the front and rear ends of the moving blade 3. When the steel wire needs to be cut, the power unit 4 moves the moving blade 3, and the cutting edge of the moving blade 3 contacts the steel wire, moving the wire toward the position of the fixed blade 2. When the outer periphery of the steel wire is contacted by the cutting edges of the moving blade 3 and the fixed blade 2, the clamping frames 5 and 6 together position the steel wire at the fixed blade 2. The moving blade 3 is clamped to both sides. Then, under the action of the power component 4, the moving blade 3 continues to move towards the fixed blade 2. At this time, the clamping frame 1 5 and the clamping frame 2 6 abut against each other, causing the clamping frame 2 6 to slide along the power component 4 against the force of the elastic component 7. The elastic component 7 is made of a compression spring. When the elastic component 7 is compressed, it provides a greater compressive force to the clamping frame 2 6, making the clamping force provided by the clamping frame 1 5 and the clamping frame 2 6 stronger, which can effectively prevent the steel wire from slipping out of the clamping frame. When the wire comes out of the clamping frame 15 and clamping frame 26, the wire is cut as the moving blade 3 and the fixed blade 2 work together. Since both sides of the wire break are clamped by clamping frame 15 and clamping frame 26, it is not easy for the wire break to bounce. The shear stress remaining on the wire break will be converted into vibration and absorbed by clamping frame 15 and clamping frame 26. This eliminates the need to install a baffle on the frame 1, avoids the noise of the wire bouncing and hitting the baffle, and also eliminates the need for staff to replace the baffle regularly.

[0020] like Figure 1 and Figure 2As shown, the power component 4 includes an output shaft 101 fixedly connected to the moving blade 3. Two clamping frames 2 6 are slidably connected to the output shaft 101 via a ring sleeve. The two clamping frames 2 6 are symmetrically fixed on both sides of the ring sleeve. When the moving blade 3 is not in contact with the steel wire, the ring sleeve is tightly pressed against the top surface of the moving blade 3. A groove 8 is provided on the outer peripheral wall of the output shaft 101, and a slider 9 is provided on the inner peripheral wall of the ring sleeve that slides in the groove 8. When the clamping frame 2 6 is in contact with the clamping frame 1 5, the output shaft 101 will still drive the moving blade 3 to move towards the fixed blade 2, causing the clamping frame 2 6 to drive the ring sleeve to slide along the outer peripheral wall of the output shaft 101. At this time, the slider 9 will slide in the groove 8 with the movement of the ring sleeve, so that the slider 9 can provide a better guiding effect for the movement of the ring sleeve, allowing the clamping frame 2 6 to slide along the outer peripheral wall of the output shaft 101. To better maintain alignment with the clamping frame 5, placing the slider 9 on the ring sleeve, compared to placing the slider 9 on the output shaft 101, avoids the possibility of interference between the slider 9 and the elastic element 7 during sliding, ensuring the stability of the clamping frame 6's sliding. The slide groove 8 extends to the end face of the output shaft 101, and a threaded hole 10 is provided on the side wall of the slide groove 8. A fixing screw 11 for fixing the moving tool 3 is threaded into the threaded hole 10. When it is necessary to disassemble and maintain the clamping frame 6, the fixing screw 11 can be removed from the threaded hole 10, allowing the moving tool 3 to separate from the output shaft 101. At this time, the ring sleeve is no longer in close contact with the top surface of the moving tool 3, and the operator can move the ring sleeve along the output shaft 101 and toward the end face of the output shaft 101. When the slider 9 can leave the slide groove 8 through the opening on the end face of the output shaft 101, the slider 9 can release the restriction of the ring sleeve. This setting facilitates the disassembly and maintenance of the clamping frame 2 6. The cutting edge of the fixed blade 2 is set with the sides higher and the middle lower. The top surface of the clamping frame 1 5 is flush with the lowest point of the cutting edge of the fixed blade 2. When the moving blade 3 touches the wire and moves towards the fixed blade 2, when the outer circumference of the wire contacts the cutting edge of the fixed blade 2, the wire will move towards the lowest point of the cutting edge of the fixed blade 2 under the resistance of the moving blade 3 because the clamping frame 1 5 is not in contact with the wire. When the wire is at the lowest point of the cutting edge of the fixed blade 2, the clamping frame 2 6 touches the clamping frame 1 5 and clamps the wire tightly. This setting allows the wire to be well maintained in the middle between the fixed blade 2 and the moving blade 3 when the moving blade 3 and the fixed blade 2 are cutting the wire. In the clamping frame 2 6, a rubber strip 12 is fixed to the side wall facing the clamping frame 1 5. During the process of clamping the steel wire against the clamping frame 1 5, the steel wire generates a reaction force on the rubber strip 12. The rubber strip 12 deforms under this reaction force. Firstly, due to its high coefficient of friction, the rubber strip 12 increases the relative friction between the clamping frame 2 6 and the steel wire. Secondly, the deformation of the rubber strip 12 increases the contact area with the outer wall of the steel wire, further increasing the friction between the clamping frame 2 6 and the steel wire. This simultaneously reduces the possibility of the steel wire slipping when clamped by the clamping frames 1 5 and 2 6. Furthermore, the rubber strip 12 has a good cushioning effect, effectively absorbing the vibration generated when the steel wire is cut.To reduce the impact of vibration on clamping frames 5 and 6, the rubber strip 12 has several friction grooves on its sidewall facing clamping frame 5. These grooves further enhance the clamping effect of clamping frames 5 and 6 on the steel wire, reducing the possibility of slippage when the steel wire is clamped by clamping frames 5 and 6.

[0021] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A cutting device for a cold drawing machine for steel wire, comprising a frame (1), a fixed blade (2), and a moving blade (3), characterized in that: The frame (1) is provided with a power component (4) for reciprocating the moving blade (3). The frame (1) is provided with two clamping frames (5). Two clamping frames (6) are slidably connected to the power component (4). The power component (4) is provided with an elastic component (7). The elastic component (7) provides a force for the clamping frames (6) to move toward the clamping frames (5). The clamping frames (5) and the clamping frames (6) are used together to clamp the steel wire. The two clamping frames (5) are respectively located at the front and rear ends of the fixed blade (2). The two clamping frames (6) are respectively located at the front and rear ends of the moving blade (3).

2. The wire cold drawing machine cutting device according to claim 1, characterized in that: The power component (4) includes an output shaft (101) fixedly connected to the moving blade (3), and two clamping frames (6) are slidably connected to the output shaft (101) through a ring sleeve. A groove (8) is provided on the outer peripheral wall of the output shaft (101), and a slider (9) that slides in the groove (8) is provided on the inner peripheral wall of the ring sleeve.

3. The wire cold drawing machine cutting device according to claim 2, characterized in that: The slide (8) extends to the end face of the output shaft (101), and a threaded hole (10) is provided on the side wall of the slide (8). A fixing screw (11) for fixing the moving tool (3) is threaded into the threaded hole (10).

4. The wire cold drawing machine cutting device according to claim 1, characterized in that: The cutting edge of the fixed knife (2) is set with the sides higher and the middle lower, and the top surface of the clamping frame (5) is flush with the lowest point of the cutting edge of the fixed knife (2).

5. The wire cold drawing machine cutting device according to claim 1, characterized in that: A rubber strip (12) is fixed on the side wall of the clamping frame 2 (6) facing the clamping frame 1 (5).

6. The wire cold drawing machine cutting device according to claim 5, characterized in that: The rubber strip (12) has several friction grooves on the side wall facing the clamping frame (5).

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