Fixed-length cutting structure on wire drawing machine

Abstract

The invention relates to the technical field of steel wire processing, in particular to a fixed-length cutting structure on a wire drawing machine, which comprises a power shaft, two transmission discs oppositely arranged on the power shaft and transmission wheels in transmission connection with the transmission discs, and a wire conveying wheel synchronously rotating is arranged between the two transmission wheels; two shifting structures are oppositely arranged on the power shaft, and a cutter head is arranged on each shifting structure; the power shaft drives the wire conveying wheel and the cutter head to move at the same time, the wire conveying wheel can convey steel wires with the specified length within one cycle of reciprocating motion of the cutter head, and therefore the cutter head can cut off the steel wires with the same length in each cycle, conveying work and fixed-length cutting-off work of the steel wires can be conducted continuously at the same time, the operation mode is effectively simplified, and the production efficiency is improved. The working efficiency is improved, the length of each section of steel wire can be conveniently kept consistent, and the machining precision is greatly improved.

Description

Technical Field

[0001] This invention relates to the technical field of steel wire processing, and in particular to a fixed-length cutting structure for a wire drawing machine. Background Technology

[0002] In the field of metal wire processing, steel wire is a basic and widely used material. Its subsequent length-cutting process is a crucial link in the production process. The traditional processing method mainly relies on manual operation. Workers usually use measuring tools such as tape measures to directly measure, mark the position, and cut. Then, this process is repeated for the next segment. This production mode is not only cumbersome and time-consuming, but also difficult to ensure the high degree of human intervention, making it difficult to guarantee the high consistency of the length of each steel wire segment. The final product accuracy is easily affected by subjective factors such as the operator's skill level and fatigue. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a fixed-length cutting structure for a wire drawing machine, the specific technical solution of which is as follows: The present invention provides a fixed-length cutting structure for a wire drawing machine, comprising a power shaft, two transmission discs disposed opposite to each other on the power shaft, and a transmission wheel connected to each of the transmission discs, wherein a synchronously rotating wire feeding wheel is disposed between the two transmission wheels. Two actuating structures are arranged opposite each other on the power shaft, and each actuating structure is provided with a cutting head. The two actuating structures are used to push the two cutting heads closer to each other or further apart when the power shaft rotates.

[0004] Furthermore, both the transmission disc and the transmission wheel are conical in shape, and the transmission disc and the transmission wheel drive each other through the conical surface. The distance between the axis of the transmission disc and the axis of the transmission wheel can be adjusted.

[0005] Furthermore, the cutting structure also includes a beam frame and a mounting plate disposed on the beam frame. The transmission wheel and the wire feeding wheel are both rotatably disposed on the beam frame via the mounting plate. The power shaft moves vertically within the beam frame. Several guide ridges are provided on the outer wall of the power shaft. The guide ridges are parallel to the axis of the power shaft. The transmission disc is slidably disposed in the axial direction of the power shaft via several guide ridges.

[0006] Furthermore, a connecting ring is provided on the side wall of the transmission disk, the transmission disk rotates on the connecting ring, a slider is provided on the connecting ring, and an inclined rail is provided on the beam frame that is slidably connected to the slider, and the sliding trajectory of the slider on the inclined rail is parallel to the generatrix of the transmission wheel on the conical surface of the transmission disk.

[0007] Furthermore, the actuating structure includes an inner ring inclinedly sleeved on the outer wall of the power shaft, an outer ring rotatably disposed on the outer wall of the inner ring, and a telescopic rod rotatably disposed on the outer ring. The telescopic rod is vertical, and a movable blade holder is disposed on the telescopic rod. The movable blade holder slides on the beam frame and pushes the cutting head to move.

[0008] Furthermore, the cutting head is slidably mounted on the movable tool holder via a timing table, and the sliding trajectory of the timing table on the movable tool holder is along the wire conveying direction. The timing table and the movable tool holder are connected by a spring.

[0009] Furthermore, the tilt angle of the inner ring on the power shaft can be adjusted.

[0010] Furthermore, two support shafts are arranged opposite each other on the inner wall of the inner ring. The support shafts are mounted on the power shaft by adjusting blocks. The adjusting blocks slide in the axial direction of the power shaft, and the adjusting blocks and the power shaft are locked by lock nuts. A pin is slidably inserted on the power shaft. The pin is rotatably connected to the inner wall of the inner ring. The sliding direction of the pin is perpendicular to the axis of the support shaft and is along the radial direction of the power shaft.

[0011] The beneficial effects of this invention are as follows: By simultaneously driving the wire feeding wheel and the cutter head with the power shaft, the wire feeding wheel can feed a specified length of steel wire within one cycle of the cutter head's reciprocating motion. This allows the cutter head to cut the same length of steel wire in each cycle, enabling simultaneous and continuous wire feeding and fixed-length cutting. This effectively simplifies the operation, improves work efficiency, and facilitates maintaining the consistent length of each steel wire segment, greatly enhancing processing accuracy. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the transmission wheel and the wire feeding wheel in an embodiment of the present invention; Figure 3 This is a schematic diagram of the power shaft and the actuating structure in an embodiment of the present invention; Figure 4This is a schematic cross-sectional view of the transmission disc in an embodiment of the present invention; Figure 5 This is a schematic diagram of the outer ring cross-sectional structure in an embodiment of the present invention.

[0014] Figure label: 1. Power shaft; 2. Transmission disc; 3. Transmission wheel; 4. Wire feeding wheel; 5. Actuating mechanism; 6. Cutting head; 7. Beam frame; 8. Mounting plate; 9. Moving seat; 10. Drive motor; 11. Push motor; 12. Threaded rod; 13. Threaded sleeve; 14. Guide ridge; 15. Connecting ring; 16. Slider; 17. Inclined rail; 18. Inner ring; 19. Outer ring; 20. Telescopic rod; 21. Moving cutter holder; 22. Synchronous table; 23. Spring; 24. Adjusting block; 25. Lock nut; 26. Support shaft; 27. Insertion post; 28. Pressure roller; 29. ​​Moving bar; 30. Spring. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0017] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0018] like Figures 1 to 5 As shown, a fixed-length cutting structure on a wire drawing machine according to the present invention includes a power shaft 1, two transmission discs 2 oppositely arranged on the power shaft 1, and transmission wheels 3 connected to each transmission disc 2. A synchronously rotating wire feeding wheel 4 is arranged between the two transmission wheels 3. Two actuating structures 5 are arranged opposite each other on the power shaft 1. Each actuating structure 5 is equipped with a cutter head 6. The two actuating structures 5 are used to push the two cutter heads 6 closer to each other or further apart when the power shaft 1 rotates.

[0019] In this invention, the power shaft 1 provides power for the rotation of the two transmission discs 2. The two transmission discs 2 are respectively connected to the two transmission wheels 3. Thus, the power shaft 1 can provide power for the rotation of the two transmission wheels 3. The power shaft 1 can be arranged horizontally, vertically, or at an angle. The transmission discs 2 and transmission wheels 3 correspond to the power shaft 1, and the orientation of the wire feeding wheel 4 located between the two transmission wheels 3 can also be changed according to the adjustment of the position of the power shaft 1. The wire feeding wheel 4 is mainly used to feed steel wire, and the feeding direction of the steel wire can be along the circumference of the wire feeding wheel 4. In any tangential direction on the outer wall, in order to ensure that the wire feeding wheel 4 can provide stable conveying power for the steel wire, the pressure wheel 28 can be used to press the steel wire onto the wire feeding wheel 4, thereby giving the wire feeding wheel 4 and the steel wire sufficient friction. In order to improve the synchronization between the wire feeding wheel 4 and the pressure wheel 28, meshing teeth can be set in the idle area of ​​the outer wall of the wire feeding wheel 4 and the idle area of ​​the outer wall of the pressure wheel 28, and grooves can be set in the middle area of ​​the outer wall of the wire feeding wheel 4 and the middle area of ​​the outer wall of the pressure wheel 28 to facilitate the restriction of the position of the steel wire.

[0020] The actuating structure 5 can convert the rotational power of the power shaft 1 into the reciprocating motion power of the cutter head 6. Thus, the power shaft 1 can simultaneously drive the cutter head 6 and the wire feeding wheel 4 to move. The wire feeding wheel 4 continuously feeds the steel wire. The two cutter heads 6 approach each other and cut the steel wire between them. Then the two cutter heads 6 separate from each other. When the two cutter heads 6 separate to the maximum distance, the two cutter heads 6 approach each other again and cut the steel wire a second time. This process is repeated, so that the steel wire is automatically cut periodically during the process of the wire feeding wheel 4 feeding the steel wire.

[0021] It should be noted that the two drive wheels 3 and the wire feeding wheel 4 can be mounted on the same drive shaft, thereby enabling them to move synchronously. Furthermore, the drive wheels 3 and the wire feeding wheel 4 can be supported simply by supporting the drive shaft.

[0022] The power shaft 1 simultaneously drives the wire feeding wheel 4 and the cutter head 6 to move. Within one cycle of the reciprocating motion of the cutter head 6, the wire feeding wheel 4 can feed a steel wire of a specified length. This allows the cutter head 6 to cut the same length of steel wire in each cycle, enabling the simultaneous and continuous feeding and cutting of steel wire. This effectively simplifies the operation, improves work efficiency, and makes it easier to keep the length of each steel wire consistent, greatly improving processing accuracy.

[0023] Furthermore, both the transmission disc 2 and the transmission wheel 3 are conical in shape, and the transmission disc 2 and the transmission wheel 3 drive each other through the conical surface. The distance between the axis of the transmission disc 2 and the axis of the transmission wheel 3 can be adjusted.

[0024] The conical surface on the transmission disc 2 contacts the conical surface on the transmission wheel 3. Utilizing these conical surfaces, the transmission wheel 3 can be driven to rotate simultaneously as the transmission disc 2 rotates. The change in distance between the transmission disc 2 and the transmission wheel 3 adjusts the transmission ratio between them. Specifically, when the transmission disc 2 and the transmission wheel 3 move further apart, the transmission ratio between them increases, and the wire feeding wheel 4 speeds up the delivery of the steel wire, resulting in a longer wire cutting length. Conversely, when the transmission disc 2 and the transmission wheel 3 move closer together, the transmission ratio between them decreases, and the wire cutting length decreases.

[0025] To ensure that the steel wire can be cut under stable transmission conditions, the positions of the transmission wheel 3 and the wire feeding wheel 4 can be fixed, and only the position of the transmission disc 2 needs to be moved.

[0026] Furthermore, the cutting structure also includes a beam frame 7 and a mounting plate 8 set on the beam frame 7. The transmission wheel 3 and the wire feeding wheel 4 are both rotatably set on the beam frame 7 through the mounting plate 8. The power shaft 1 moves vertically within the beam frame 7. Several guide ribs 14 are provided on the outer wall of the power shaft 1. The guide ribs 14 are parallel to the axis of the power shaft 1. The transmission disc 2 is slidably set in the axial direction of the power shaft 1 through several guide ribs 14.

[0027] The beam frame 7 and mounting plate 8 support the transmission disc 2, transmission wheel 3, and wire feed wheel 4, meaning the transmission shafts on the transmission wheel 3 and wire feed wheel 4 are rotatably mounted on the mounting plate 8. To enable the movement and rotation of the power shaft 1 within the beam frame 7, sliding seats 9 are provided at both ends of the power shaft 1, each capable of sliding on the beam frame 7. A drive motor 10 is mounted on one of the sliding seats 9 to provide power for the rotation of the power shaft 1. Two push motors 11, corresponding to the two sliding seats 9, are mounted on the beam frame 7. Threaded rods 12 are provided at the output ends of the push motors 11, and threaded screws are screwed onto the threaded rods 12. The threaded sleeve 13 is connected to the movable seat 9. When the motor 11 is driven to rotate, it will drive the threaded rod 12 and the threaded sleeve 13 to rotate relative to each other, thereby driving the movable seat 9 to move up and down, providing power for the movement of the power shaft 1. When the power shaft 1 moves, if the transmission disk 2 is stationary on the power shaft 1, then the transmission disk 2 cannot maintain the transmission state with the transmission wheel 3 through the conical surface. Therefore, it is necessary to enable the transmission disk 2 to move on the power shaft 1. In order to make the power shaft 1 and the transmission disk 2 rotate synchronously, the power shaft 1 and the transmission disk 2 can be restricted by several guide ribs 14.

[0028] like Figure 2As shown, two mounting plates 8 can be provided, and they are located on the left and right sides of the wire feeding wheel 4 respectively. A movable strip 29 is slidably provided on each mounting plate 8. The end of the pressure wheel 28 is rotatably provided on the movable strip 29. The movable strip 29 is connected to the mounting plate 8 through a spring piece 30. Thus, the spring piece 30 can provide elastic thrust to the pressure wheel 28, so that the pressure wheel 28 presses the steel wire onto the wire feeding wheel 4.

[0029] Furthermore, a connecting ring 15 is provided on the side wall of the transmission disk 2, the transmission disk 2 rotates on the connecting ring 15, a slider 16 is provided on the connecting ring 15, and an inclined rail 17 is provided on the beam frame 7 that is slidably connected to the slider 16, and the sliding trajectory of the slider 16 on the inclined rail 17 is parallel to the generatrix of the transmission wheel 3 on the cone surface of the transmission disk 2.

[0030] The generatrix of the transmission wheel 3 on the transmission disk 2 is the line connecting the contact point between the transmission disk 2 and the transmission wheel 3 and the tip of the cone surface of the transmission disk 2. When this generatrix is ​​parallel to the sliding trajectory of the slider 16 on the inclined rail 17, the movement of the transmission disk 2 can only be along the inclined direction, and the transmission disk 2 and the transmission wheel 3 always maintain a contact transmission state, thereby restricting the movement of the transmission disk 2 and improving the transmission stability.

[0031] Specifically, when the power shaft 1 moves vertically, the power shaft 1 can drive the transmission disk 2 to move synchronously. The transmission disk 2 pushes the slider 16 to slide on the inclined rail 17 through the connecting ring 15. At this time, the slider 16 and the inclined rail 17 guide the transmission disk 2, so that the transmission disk 2 slides on the power shaft 1. When the transmission disk 2 rotates, the transmission disk 2 can rotate relative to the connecting ring 15, thereby enabling the slider 16 and the transmission disk 2 to achieve relative movement and connection.

[0032] Furthermore, the actuating structure 5 includes an inner ring 18 inclinedly sleeved on the outer wall of the power shaft 1, an outer ring 19 rotatably disposed on the outer wall of the inner ring 18, and a telescopic rod 20 rotatably disposed on the outer ring 19. The telescopic rod 20 is vertical, and a movable blade holder 21 is disposed on the telescopic rod 20. The movable blade holder 21 slides on the beam frame 7 and pushes the cutting head 6 to move.

[0033] Because the inner ring 18 is inclined relative to the axis of the power shaft 1, when the power shaft 1 rotates, it will move the bottom of the telescopic rod 20 back and forth along the axis of the power shaft 1 via the inner ring 18 and the outer ring 19. The telescopic rod 20 can push the cutting head 6 back and forth via the movable blade holder 21, thereby providing the moving power for the cutting head 6. During the rotation of the inner ring 18, the telescopic rod 20 restricts the outer ring 19, causing the outer ring 19 to rotate relative to the inner ring 18, and the connection point between the telescopic rod 20 and the outer ring 19 floats up and down in the vertical direction, thereby causing the telescopic rod 20 to perform telescopic movement. The telescopic rod 20 and the outer ring 19 can be rotatably connected by a ball and a spherical shell. In order to ensure that the telescopic rod 20 is always vertical, several crossbars can be set on the outer wall of the fixed end of the telescopic rod 20, such as... Figure 3 As shown, the crossbar slides through the beam frame 7; since the movable blade holder 21 is slidably mounted on the beam frame 7, it can provide support and guidance for the telescopic rod 20 and the cutting head 6.

[0034] Furthermore, the cutting head 6 is slidably mounted on the movable tool holder 21 via the synchronization table 22, and the sliding trajectory of the synchronization table 22 on the movable tool holder 21 is along the wire conveying direction. The synchronization table 22 and the movable tool holder 21 are connected by a spring 23.

[0035] When the cutter head 6 cuts the steel wire, the wire feeding wheel 4 is always in motion. Therefore, the cutting of the steel wire by the cutter head 6 will temporarily hinder the normal feeding of the steel wire, causing the steel wire to bend. To avoid this phenomenon, the above-mentioned arrangement of the synchronous table 22 and spring 23 can be adopted. When the cutter head 6 contacts the steel wire, the friction between them will push the synchronous table 22 to slide on the moving cutter holder 21, that is, the cutter head 6 and the steel wire move synchronously, thereby realizing the static cutting of the steel wire. The spring 23 can provide the restoring elastic force for the synchronous table 22 and the cutter head 6.

[0036] It should be noted that when the diameter or hardness of the steel wire is small, the strength of the spring 23 needs to be reduced accordingly to avoid the friction between the steel wire and the cutter head 6 being unable to overcome the elastic force of the spring 23 and thus push the cutter head 6 to move.

[0037] Furthermore, the tilt angle of the inner ring 18 on the power shaft 1 can be adjusted.

[0038] When the tilt angle of the inner ring 18 on the power shaft 1 changes, the horizontal movement range of the telescopic rod 20 will change after the power shaft 1 rotates one revolution, thereby changing the movement range of the cutter head 6, making it easier to cut steel wires of different diameters.

[0039] Furthermore, two support shafts 26 are arranged opposite each other on the inner wall of the inner ring 18. The support shafts 26 are mounted on the power shaft 1 through the adjusting block 24. The adjusting block 24 slides in the axial direction of the power shaft 1, and the adjusting block 24 and the power shaft 1 are locked by the lock nut 25. A pin 27 is slidably inserted on the power shaft 1. The pin 27 is rotatably connected to the inner wall of the inner ring 18. The sliding direction of the pin 27 is perpendicular to the axis of the support shaft 26 and is along the radial direction of the power shaft 1.

[0040] The connection position between the insert 27 and the inner ring 18 is the position on the inner ring 18 closest to the center point of the power shaft 1. This position can be used as the base point of the inner ring 18. When the tilt angle of the inner ring 18 changes, the limit position of the telescopic rod 20 and the moving blade holder 21 moving horizontally toward the center point of the power shaft 1 remains unchanged. This allows the two cutting heads 6 to move in opposite directions after completing the cutting of the steel wire, avoiding collision and damage between the two cutting heads 6. Alternatively, when the two cutting heads 6 adopt a staggered shear cutting method, the overlap distance between the two cutting heads 6 will not be too large. This increases the range of motion of the cutting heads 6 while keeping their limit position unchanged.

[0041] By using the adjusting block 24 and the support shaft 26, the center point of the inner ring 18 can be defined. That is, when the tilt angle of the inner ring 18 changes, the adjusting block 24 will slide on the power shaft 1 due to the restriction of the insert 27, while the support shaft 26 will remain symmetrical on the power shaft 1. The center of the inner ring 18 will always coincide with the axis of the power shaft 1. After the inner ring 18 has been adjusted, the position of the adjusting block 24 on the power shaft 1 can be locked by the lock nut 25, thereby locking the inner ring 18.

[0042] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fixed-length cutting structure for a wire drawing machine, characterized in that, It includes a power shaft, two transmission discs oppositely disposed on the power shaft, and transmission wheels that are connected to each of the transmission discs. A wire feeding wheel that rotates synchronously is disposed between the two transmission wheels. Two actuating structures are arranged opposite each other on the power shaft, and each actuating structure is provided with a cutting head. The two actuating structures are used to push the two cutting heads closer to each other or further apart when the power shaft rotates.

2. The fixed-length cutting structure on a wire drawing machine according to claim 1, characterized in that, Both the transmission disc and the transmission wheel are conical in shape, and the transmission disc and the transmission wheel drive each other through the conical surface. The distance between the axis of the transmission disc and the axis of the transmission wheel can be adjusted.

3. The fixed-length cutting structure on a wire drawing machine according to claim 2, characterized in that, The cutting structure also includes a beam frame and a mounting plate disposed on the beam frame. The transmission wheel and the wire feeding wheel are both rotatably disposed on the beam frame via the mounting plate. The power shaft moves vertically within the beam frame. Several guide ridges are provided on the outer wall of the power shaft. The guide ridges are parallel to the axis of the power shaft. The transmission disc is slidably disposed in the axial direction of the power shaft via several of the guide ridges.

4. The fixed-length cutting structure on a wire drawing machine according to claim 3, characterized in that, A connecting ring is provided on the side wall of the transmission disk, the transmission disk rotates on the connecting ring, a slider is provided on the connecting ring, and an inclined rail is provided on the beam frame that is slidably connected to the slider, and the sliding trajectory of the slider on the inclined rail is parallel to the generatrix of the transmission wheel on the conical surface of the transmission disk.

5. The fixed-length cutting structure on a wire drawing machine according to claim 4, characterized in that, The actuating structure includes an inner ring inclinedly sleeved on the outer wall of the power shaft, an outer ring rotatably disposed on the outer wall of the inner ring, and a telescopic rod rotatably disposed on the outer ring. The telescopic rod is vertical and a movable blade holder is disposed on the telescopic rod. The movable blade holder slides on the beam frame and pushes the cutting head to move.

6. The fixed-length cutting structure on a wire drawing machine according to claim 5, characterized in that, The cutting head is slidably mounted on the movable tool holder via a timing table, and the sliding trajectory of the timing table on the movable tool holder is along the wire conveying direction. The timing table and the movable tool holder are connected by a spring.

7. The fixed-length cutting structure on a wire drawing machine according to claim 6, characterized in that, The tilt angle of the inner ring on the power shaft can be adjusted.

8. The fixed-length cutting structure on a wire drawing machine according to claim 7, characterized in that, Two support shafts are arranged opposite each other on the inner wall of the inner ring. The support shafts are mounted on the power shaft by adjusting blocks. The adjusting blocks slide in the axial direction of the power shaft, and the adjusting blocks and the power shaft are locked by lock nuts. A pin is slidably inserted on the power shaft. The pin is rotatably connected to the inner wall of the inner ring. The sliding direction of the pin is perpendicular to the axis of the support shaft and is along the radial direction of the power shaft.

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