Wire cutting device for screw machining

Abstract

The wire cutting device for screw machining comprises a connecting frame, a guide wheel, a metal wire and a guide hole, the connecting frame is fixedly connected with a first connecting block on one side of the guide hole, one side of the first connecting block is fixedly connected with an electric push rod, and the output end of the electric push rod is fixedly connected with a first sliding block. A pressing strip is fixedly connected to the side, close to the guide hole, of the first sliding block, a first groove is formed in one side of the first sliding block, a spring rod is fixedly connected into the first groove, a trapezoidal connecting plate is connected to the spring rod in a sleeved mode, and a second connecting block is fixedly connected to one side of the connecting frame. Then one end of the metal wire makes contact with and extrudes the contact type sensor, then a sensing signal is sent to the electric push rod, the electric push rod stretches, the pressing strip is promoted to extrude the cutting blade, then the metal wire is clamped between the trapezoidal connecting plates, extrusion forming is conducted through the cold heading mechanism, and therefore the cutting adaptability to the metal wires with different diameters is improved.

Description

Technical Field

[0001] This utility model relates to the field of screw and wire processing technology, and specifically to a wire cutting device for screw processing. Background Technology

[0002] Screw wire typically uses high-quality metal wire as raw material, which is then processed through rolling and other processes to achieve a certain length and diameter. Common screw wires are cut using a cold heading machine before the head and position are shaped.

[0003] According to Chinese Patent Publication No. CN111299466B, "A Wire Cutting Device for Screw Processing," the device mainly involves a sliding rod at the rear end of a mounting base, a sliding seat slidably mounted on the sliding rod, a second through hole in the middle of the sliding seat, a moving blade and a fixed blade on the sliding seats on both sides of the second through hole, a stop cap at the rear end of the sliding rod, and a spring on the sliding rod between the stop cap and the sliding seat. The mounting base has a first through hole corresponding to the second through hole. During the cutting operation, the device can move along with the wire. Compared with the prior art, this device can improve production efficiency and has a simple structure.

[0004] Common screw wires require a guide wheel for traction during cutting. The wire then enters the wire hole and extends from one side of the cold heading machine to contact the fixed-length mechanism. It is then cut by a moving blade. The clamping structure moves on its own, aligning the cut material with the cold heading mechanism. The head and tail of the screw are then formed by the compression of the cold heading mechanism. Since the required screw diameters vary, the movement between cutting and moving can cause clamping difficulties, affecting the efficiency of subsequent processing.

[0005] Therefore, a wire cutting device for screw processing is proposed to solve the problem that the processing efficiency is affected by the need to adjust and replace the corresponding structure during cutting due to the different diameters of screws produced. Utility Model Content

[0006] The technical problem to be solved by this utility model is that because screws are produced with different diameters, the corresponding structure needs to be adjusted and replaced during cutting, which affects the processing efficiency. Therefore, a wire cutting device for screw processing is proposed.

[0007] The technical solution adopted by this utility model to solve the technical problem is: a wire cutting device for screw processing, including a connecting frame, a guide wheel, metal wire and a guide hole. A first connecting block is fixedly connected to one side of the connecting frame at the guide hole. An electric push rod is fixedly connected to one side of the first connecting block. A first slider is fixedly connected to the output end of the electric push rod. A pressure strip is fixedly connected to the side of the first slider near the guide hole. A first groove is opened on one side of the first slider. A spring rod is fixedly connected in the first groove. A trapezoidal connecting plate is sleeved on the spring rod. A second connecting block is fixedly connected to one side of the connecting frame. A support rod is fixedly connected to one side of the second connecting block. A second slider is fixedly connected to one side of the support rod. A cutting blade is rotatably connected to one side of the second slider through a rotating shaft. A spring contacts two opposing cutting blades. A bracket is fixedly connected to one side of the second slider, and a connecting plate is sleeved on the bracket. An adjusting rod is rotatably connected to one side of the connecting plate. An adjusting plate is threadedly connected to one side of the adjusting rod. A contact sensor is fixedly connected to one side of the adjusting plate. The contact sensor is connected in series with the electric push rod through a wire.

[0008] As a preferred technical solution of this utility model, an arc-shaped block is fixedly connected to one side of the cutting blade. The arc-shaped block corresponds to the pressure strip. By setting the arc-shaped block, it is easy for the two cutting blades to rotate relative to each other.

[0009] As a preferred technical solution of this utility model, a limiting rod is provided on one side of the arc-shaped block, and the limiting rod is fixedly connected to the second slider. By setting the limiting block, the spring between the two cutters is prevented from disengaging.

[0010] As a preferred technical solution of this utility model, the connecting frame is provided with a hidden groove on one side of the guide hole. The hidden groove is on the same side as the first slider. By setting the hidden groove, the limiting block will not block the movement of the electric push rod.

[0011] As a preferred technical solution of this utility model, the connecting frame is fixedly connected to spring telescopic rods on both sides that are far apart within the hidden groove. One end of the spring telescopic rod is fixedly connected to a limiting block. The limiting block has a V-shaped recess and a male and female groove on one side of the V-shaped recess. By setting the spring telescopic rod and the limiting block in conjunction with the V-shaped recess, it is easy to limit metal wires of different diameters.

[0012] This invention has the following advantages: the guide wheel pulls the metal wire to move, then one end of the metal wire contacts and squeezes the contact sensor, and then the sensing signal is sent to the electric push rod. The electric push rod extends and causes the pressure bar to squeeze the cutting blade. Then the metal wire is stuck between the trapezoidal plates and then extruded and shaped by the cold heading mechanism, thereby increasing the adaptability to cutting metal wires of different diameters. Attached Figure Description

[0013] Figure 1 This is a top view schematic diagram of a wire cutting device for screw processing according to a preferred embodiment of the present invention;

[0014] Figure 2 This is a three-dimensional structural schematic diagram of a wire cutting device for screw processing according to a preferred embodiment of the present invention;

[0015] Figure 3 This is a three-dimensional structural diagram of the second slider of a wire cutting device for screw processing according to a preferred embodiment of the present invention;

[0016] Figure 4 This is a three-dimensional structural diagram of the first slider of a wire cutting device for screw processing according to a preferred embodiment of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Connecting frame; 2. Guide wheel; 3. Metal wire; 4. First connecting block; 5. Electric push rod; 6. First slider; 7. Pressure strip; 8. First groove; 9. Spring rod; 10. Trapezoidal connecting plate; 11. Second connecting block; 12. Support rod; 13. Second slider; 14. Cutting blade; 15. Connecting plate; 16. Adjusting rod; 17. Adjusting distance plate; 18. Contact sensor; 19. Arc-shaped block; 20. Limiting rod; 21. Guide hole; 22. Hidden groove; 23. Spring telescopic rod; 24. Limiting block. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Please refer to the following: Figure 1-4The screw processing wire cutting device shown includes a connecting frame 1, a guide wheel 2, a metal wire 3, and a guide hole 21. A first connecting block 4 is fixedly connected to one side of the connecting frame 1 at the guide hole 21. An electric push rod 5 is fixedly connected to one side of the first connecting block 4. The electric push rod 5 extends and drives a first slider 6 to move, thereby changing the position of the first slider 6, realizing cutting and moving the cut material. The output end of the electric push rod 5 is fixedly connected to the first slider 6. A pressure strip 7 is fixedly connected to the side of the first slider 6 near the guide hole 21. The pressure strip 7 has a V-shaped recess, which can promote the relative approach of the cutting blade 14. A first groove 8 is formed on one side of the first slider 6. A spring rod 9 is fixedly connected in the first groove 8. A trapezoidal connecting plate 10 is sleeved on the spring rod 9. By setting the trapezoidal connecting plate 10, the metal wire 3 can be cut when the cutting blade 14 approaches. A second connecting block 4 is fixedly connected to one side of the connecting frame 1. Block 11, a support rod 12 is fixedly connected to one side of the second connecting block 11, a second slider 13 is fixedly connected to one side of the support rod 12, a cutting blade 14 is rotatably connected to one side of the second slider 13 via a rotating shaft, the cutting blade 14 is composed of a cuboid and a triangular prism, a spring contacts the two opposing cutting blades 14, a bracket is fixedly connected to one side of the second slider 13 and a connecting plate 15 is sleeved on the bracket, an adjusting rod 16 is rotatably connected to one side of the connecting plate 15, rotating the adjusting rod 16 can move the adjusting plate 17, thereby forming a distance with the cutting wire length between it and the connecting frame 1, the adjusting rod 16 is threadedly connected to the adjusting plate 17, a contact sensor 18 is fixedly connected to one side of the adjusting plate 17, the contact sensor 18 is connected in series with the electric push rod 5 via a wire, the contact sensor 18 is compressed and contracted by the metal wire 3, thereby transmitting a sensing signal to the electric push rod 5 and controlling the extension and contraction of the electric push rod 5.

[0020] Among them, an arc-shaped block 19 is fixedly connected to one side of the cutting blade 14. The arc-shaped block 19 corresponds to the pressure strip 7. By setting the arc-shaped block 19, the relative movement of the two cutting blades 14 can be improved.

[0021] Among them, a limiting rod 20 is provided on one side of the arc-shaped block 19. The limiting rod 20 is fixedly connected to the second slider 13. By setting the limiting rod 20, the maximum unfolding distance between the two cutting blades 14 can be limited.

[0022] The connecting frame 1 has a hidden groove 22 on one side of the guide hole 21. The hidden groove 22 is on the same side as the first slider 6. By setting the hidden groove 22, the spring telescopic rod 23 and the limiting block 24 can be prevented from blocking the extension of the electric push rod 5.

[0023] Among them, the connecting frame 1 is located in the hidden groove 22 and is fixedly connected to the two sides of the spring telescopic rod 23 that are far apart from each other. One end of the spring telescopic rod 23 is fixedly connected to the limiting block 24. The limiting block 24 has a V-shaped recess and a male and female groove on one side of the limiting block 24. By using the two relatively movable limiting blocks 24, the V-shaped recess and the male and female groove, the metal wires 3 of different diameters can be limited.

[0024] Working principle: The guide wheel 2 moves the metal wire 3 from the guide hole 21 to one side of the adjusting plate 17. When the contact sensor 18 is fully retracted, it sends an electrical signal to the electric push rod 5, causing the first slider 6 to move. Then, the pressure strip 7 on the first slider 6 squeezes the cutting blade 14, causing the cutting blade 14 to rotate relative to the other side. At this time, the metal wire 3 is cut to a fixed length. Simultaneously, the cut metal wire 3 is stuck in the corresponding trapezoidal receiving plate 10. Then, the electric push rod 5 retracts, causing the cut metal wire 3 to... Figure 1 Another through hole is formed, and then the cold heading mechanism picks up and extrudes the cut metal wire 3, thereby improving the adaptability to cutting metal wire 3 of different diameters.

[0025] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0026] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wire cutting device for screw processing, comprising a connecting frame (1), a guide wheel (2), metal wire (3), and a guide hole (21), characterized in that, The connecting frame (1) is fixedly connected to a first connecting block (4) on one side of the guide hole (21). An electric push rod (5) is fixedly connected to one side of the first connecting block (4). A first slider (6) is fixedly connected to the output end of the electric push rod (5). A pressure strip (7) is fixedly connected to the side of the first slider (6) near the guide hole (21). A first groove (8) is opened on one side of the first slider (6). A spring rod (9) is fixedly connected in the first groove (8). A trapezoidal connecting plate (10) is sleeved on the spring rod (9). A second connecting block (11) is fixedly connected to one side of the connecting frame (1). A second connecting block (11) is fixedly connected to one side of the second connecting block (11). There is a support rod (12), and a second slider (13) is fixedly connected to one side of the support rod (12). A cutting blade (14) is rotatably connected to one side of the second slider (13) via a rotating shaft. A spring contacts the two opposing cutting blades (14). A bracket is fixedly connected to one side of the second slider (13), and a connecting plate (15) is sleeved on the bracket. An adjusting rod (16) is rotatably connected to one side of the connecting plate (15). An adjusting plate (17) is threadedly connected to one side of the adjusting rod (16). A contact sensor (18) is fixedly connected to one side of the adjusting plate (17). The contact sensor (18) is connected in series with an electric push rod (5) via a wire.

2. The wire cutting device for screw processing as described in claim 1, characterized in that, An arc-shaped block (19) is fixedly connected to one side of the cutting blade (14), and the arc-shaped block (19) corresponds to the pressure strip (7).

3. The wire cutting device for screw processing as described in claim 2, characterized in that, A limiting rod (20) is provided on one side of the arc-shaped block (19), and the limiting rod (20) is fixedly connected to the second slider (13).

4. The wire cutting device for screw processing as described in claim 1, characterized in that, The connecting frame (1) has a hidden groove (22) on one side of the guide hole (21), and the hidden groove (22) is on the same side as the first slider (6).

5. The wire cutting device for screw processing as described in claim 4, characterized in that, The connecting frame (1) is fixedly connected to spring telescopic rods (23) on both sides of the hidden groove (22) that are far apart from each other. One end of the spring telescopic rod (23) is fixedly connected to a limiting block (24). A V-shaped recess is provided on the limiting block (24), and a yin-yang groove is provided on one side of the limiting block (24) in the V-shaped recess.

Images