An automatic threading device

Abstract

The utility model discloses an automatic threading equipment concretely relates to wire cutting equipment technical field, including the upper wire feeding module, the mobile seat is slidably connected in the upper wire feeding module, two guide rails are fixedly arranged in the upper wire feeding module symmetry, the rack is fixedly arranged in the upper wire feeding module, is provided with the first drive assembly on the mobile seat, the driving shaft is rotatably connected on the mobile seat, the driving shaft outside fixedly covers and sets up the driving gear, the driven shaft is slidably connected on the mobile seat, the driven shaft outside fixedly covers and sets up the driven gear and is connected, the driving shaft outside fixedly covers and sets up the thread clamp roller, the driven shaft outside fixedly covers and sets up the tungsten steel clamp wheel, and the wire cutting assembly is arranged below the upper wire feeding module, and the structure can realize automatic threading effect, alleviate the work burden of staff, improve work efficiency, and make the device in the threading process, and the movement threading process of silk thread is more stable, has better cutting surface quality.

Description

Technical Field

[0001] This utility model relates to the field of wire cutting equipment technology, and more specifically, to an automatic threading device. Background Technology

[0002] Wire EDM technology is widely used in the mold processing field. Its principle is to use the spark discharge phenomenon generated by high-frequency pulse power to etch away the workpiece. The existing publication number CN220698464U discloses an automatic wire threading panel structure for a slow wire EDM machine. The structure includes a panel with a wire feeding mechanism, a wire assembling mechanism, a tensioning mechanism, an automatic wire threading mechanism, and a wire melting mechanism. The wire assembling mechanism is positioned above the wire feeding mechanism, the tensioning mechanism is positioned to one side of the wire feeding mechanism, and the automatic wire threading mechanism and the wire melting mechanism are sequentially positioned below the tensioning mechanism. The automatic wire threading mechanism includes a sliding seat and a wire threading tube. The wire threading tube is fixed inside the sliding seat and can move with the sliding seat to the upper part of the cutting machine head. A heating and straightening mechanism is included. When the wire melting mechanism is working, current can be conducted to a copper block through the electrode wire, hardening the electrode wire inside the wire threading tube and improving the success rate of subsequent wire threading. A flushing water pressure regulating valve is included. By adjusting the water pressure, a hollow water jet is sprayed to envelop the electrode wire, preventing the electrode wire from shaking and improving the success rate of wire threading. In the process of realizing this utility model, the inventors discovered the following problems with the existing technology: In traditional wire EDM equipment, after a pattern is cut during the mold processing, the wire needs to be re-threaded. During the threading process, the clamping component separates from the threading tube as the wire moves down. This causes the wire to wobble as it passes through the threading tube and the tube moves down independently, which can easily lead to wire waste and operational errors.

[0003] Furthermore, it requires manual re-threading, which is time-consuming and labor-intensive. During the threading process, the threads need to be constantly cut as they move down, resulting in material waste. It also demands a high level of manual skill, making it prone to operational errors and ultimately scrapping the product. Moreover, it cannot cut continuously; uneven tension control during automatic cutting leads to poor cutting quality.

[0004] Therefore, an automatic threading device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic threading device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic threading device, comprising a thread feeding module, a thread pressing module assembly, and an automatic tensioning module plate. A movable seat is slidably connected within the thread feeding module. Two guide rails are symmetrically fixed within the thread feeding module. A rack is fixedly installed within the thread feeding module on one side of one guide rail. A first driving assembly is mounted on the movable seat. A driving shaft is rotatably connected to the movable seat. A driving gear is fixedly sleeved on the outside of the driving shaft. A driven shaft is slidably connected to the movable seat on one side of the driving shaft. A driven gear, meshing with the driving gear, is fixedly sleeved on the outside of the driven shaft. A clamping roller is fixedly sleeved on the outside of the driving shaft on one side of the driving gear. A tungsten steel clamping wheel is fixedly sleeved on the outside of the driven shaft on one side of the driven gear. A tangent assembly is located below the thread feeding module. In use, the device is driven to rotate by a servo motor. The rotating driving shaft is connected to the driving gear... The meshing between the driven and driven gears enables the transmission of the driven shaft. The rotation of the driving and driven shafts causes the clamping rollers and tungsten carbide clamping wheels, which are sleeved and connected to the outside of the driving and driven shafts, to rotate. The rotating clamping rollers and tungsten carbide clamping wheels clamp and transmit the wire, which then passes through the wire guide tube and exits the upper wire feeding module. By adjusting the lifting of the wire guide tube, the wire passes through the processing hole on the mold plate, thus achieving automatic wire feeding. This reduces the workload of workers and improves work efficiency. During automatic wire feeding, the two sets of guide rails allow the moving seat to slide up and down on the surface of the upper wire feeding module, with simultaneous limit stops from both sides, improving the stability of the moving seat and the wire clamped on it. Furthermore, the first drive component enables synchronous adjustment of the clamping rollers, tungsten carbide clamping wheels, and wire guide tube, making the wire feeding process more stable and resulting in better cutting surface quality.

[0007] Preferably, the first driving component includes a driving gear and a driving motor. The driving gear is rotatably connected to the movable seat, and the driving motor for adjusting the rotation of the driving gear is bolted to the movable seat. In use, the driving gear is rotated by the driving motor, and then the movable seat is moved up and down by the action of the wires on the two guide rails through the meshing of the driving gear and the rack.

[0008] Preferably, a first pneumatic push rod is fixedly connected to the back of the movable seat, and a connecting seat is fixedly provided at the output end of the first pneumatic push rod. The driven shaft is rotatably connected to the connecting seat. In use, the connecting seat is moved laterally by the first pneumatic push rod, and then the movement of the connecting seat drives the driven shaft and the tungsten steel clamping wheel provided on the driven shaft to move closer to the clamping roller.

[0009] Preferably, the top of the upper wire feeding module is fixedly connected to a wire inlet, and the bottom of the movable seat is fixedly connected to a wire conduit. The bottom end of the wire conduit movably passes through the bottom wall of the upper wire feeding module. In use, the wire can be inserted into the upper wire feeding module from the wire inlet and then exited through the wire conduit.

[0010] Preferably, the wire cutting assembly includes a second pneumatic push rod and a wire cutting cutter. The second pneumatic push rod is located below the wire feeding module, and the output end of the second pneumatic push rod is fixedly connected to the wire cutting cutter. In use, the second pneumatic push rod drives the wire cutting cutter to move toward the wire, and the wire cutting cutter cuts the wire. At the same time, the wire cutting cutter can also cut the wire when bending the wire or failing to thread it in the threading station.

[0011] Preferably, a first guide wheel is rotatably connected to the automatic tensioning module plate. A tension sensor for detecting the tension of the thread passing through the outer wall of the first guide wheel is fixedly installed on the automatic tensioning module plate and directly above the first guide wheel. A second guide wheel is rotatably connected to the automatic tensioning module plate and located on one side of the first guide wheel. A tightening wheel is provided between the first and second guide wheels. A moving component is provided between the tightening wheel and the automatic tensioning module plate. A moving block is slidably connected to the surface of the automatic tensioning module plate. The tightening wheel is rotatably connected to the moving block. The moving block and the tightening wheel are slidably connected through the moving component. The thread on the pressing module assembly first passes through the outer wall of the first guide wheel from above, then passes through the outer wall of the tightening wheel from below, and finally passes through the outer wall of the second guide wheel from above and exits. The tension sensor can detect the tension of the thread passing through the outer wall of the first guide wheel. When the thread tension is detected to be too high, the tightening wheel can be moved upward to adjust and reduce the thread tension, thereby achieving real-time adjustment, improving cutting efficiency, and improving product quality.

[0012] Preferably, the moving component includes a second drive component and a transmission belt. The transmission belt is rotatably connected to the automatic tensioning module plate. The automatic tensioning module plate is provided with a second drive component that drives the transmission belt. The transmission belt is driven to rotate by the second drive component, which then causes the tensioning wheel on the moving block to move up and down for adjustment.

[0013] Preferably, a third guide wheel is rotatably connected directly above the upper wire feeding module, and an automatic wire feeding module for guiding the wire is provided below the upper wire feeding module. The wire passes through the upper end of the outer wall of the third guide wheel, and finally passes through the upper wire feeding module, and then passes through the automatic wire feeding module and returns to the pressing module assembly, so that the wire forms a cycle.

[0014] The technical effects and advantages of this utility model are as follows: Compared with existing technologies, this automatic threading device uses a second pneumatic push rod to move the cutting blade toward the thread to cut it. Then, a servo motor drives the active shaft to rotate. The rotating active shaft, through the meshing of the active and driven gears, transmits power to the driven shaft. The rotating active and driven shafts cause the clamping rollers and tungsten steel clamping wheels, which are sleeved and connected to the outside of the active and driven shafts, to rotate. These clamping rollers and tungsten steel clamping wheels clamp and transmit the thread, which then passes through a guide tube and exits the upper feeding module. By adjusting the height of the guide tube, the thread passes through the processing hole on the mold plate. This structure achieves automatic threading, reducing the workload of workers and improving work efficiency.

[0015] The automatic tensioning module can adjust the cutting tension during the cutting process, keeping the tension within the optimal range, thereby improving cutting efficiency and enhancing cutting quality.

[0016] Automatic threading machines can operate 24 hours a day without human intervention. They have low requirements for operators, are easy to learn, and one person can operate multiple machines at the same time. Attached Figure Description

[0017] Figure 1 This is a frontal planar structural diagram of the present invention.

[0018] Figure 2 This is a partial front view of the present invention.

[0019] Figure 3 This is a partial three-dimensional structural diagram of the present invention.

[0020] The attached figures are labeled as follows: 1. Upper wire feeding module; 2. Moving seat; 3. Guide rail; 4. Rack; 5. First drive assembly; 6. Automatic wire feeding module; 7. Driving shaft; 8. Driven shaft; 9. Driving gear; 10. Driven gear; 11. Wire clamping roller; 12. Tungsten carbide clamping wheel; 13. First pneumatic push rod; 14. Connecting seat; 15. Wire inlet; 16. Wire guide tube; 17. Second pneumatic push rod; 18. Wire cutting tool; 19. Wire pressing module assembly; 20. Automatic tensioning module plate; 21. First guide wheel; 22. Tensioning wheel; 23. Second guide wheel; 24. Tension sensor; 25. Second drive assembly; 26. Transmission belt; 27. Third guide wheel. Detailed Implementation

[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1 As attached Figures 1 to 3 An automatic threading device is shown, comprising a wire feeding module 1, a wire pressing module assembly 19, and an automatic tensioning module plate 20. A movable seat 2 is slidably connected within the wire feeding module 1. Two guide rails 3 are symmetrically fixed within the wire feeding module 1. A rack 4 is fixedly installed within the wire feeding module 1 on one side of one guide rail 3. A first drive assembly 5 is mounted on the movable seat 2. A drive shaft 7 is rotatably connected to the movable seat 2. A drive gear 9 is fixedly sleeved on the outside of the drive shaft 7. A driven shaft 8 is slidably connected to the movable seat 2 on one side of the drive shaft 7. A first pneumatic push rod 13 is fixedly connected to the back of the movable seat 2. A pneumatic push rod 13 has a connecting seat 14 fixedly installed at its output end. A driven shaft 8 is rotatably connected to the connecting seat 14. A driven gear 10 that meshes with the driving gear 9 is fixedly sleeved on the outside of the driven shaft 8. A wire clamping roller 11 is fixedly sleeved on the outside of the driving shaft 7 and on the side of the driving gear 9. A tungsten steel clamping wheel 12 is fixedly sleeved on the outside of the driven shaft 8 and on the side of the driven gear 10. A wire cutting assembly is provided below the upper wire feeding module 1. A wire inlet 15 is fixedly connected to the top of the upper wire feeding module 1. A wire guide tube 16 is fixedly connected to the bottom of the movable seat 2. The bottom of the wire guide tube 16 movably passes through the bottom wall of the upper wire feeding module 1.

[0023] In operation, the device moves the connecting seat 14 laterally via the first pneumatic push rod 13. The movement of the connecting seat 14 then moves the driven shaft 8 and the driven gear 10 mounted on the driven shaft 8 toward the driving gear 9. A servo motor then drives the driving shaft 7 to rotate. The rotating driving shaft 7 transmits power to the driven shaft 8 through the meshing of the driving gear 9 and the driven gear 10. The rotation of the driving shaft 7 and the driven shaft 8 causes the wire clamping roller 11 and tungsten steel clamping wheel 12, which are sleeved and connected to the outside of the driving shaft 7 and the driven shaft 8, to rotate. The rotating wire clamping roller 11 and tungsten steel clamping wheel 12 clamp and transmit power to the wire, which then passes through the upper wire feeding module 1 via the wire guide tube 16. The wire guide tube 16 is adjusted by lifting and lowering to allow the wire to pass through the upper wire feeding module 1. The 16-thread wire passes through the machining hole in the mold plate. After the model on the mold plate is finished, the second pneumatic push rod 17 drives the wire cutting tool 18 to move toward the wire to cut it. Then the above automatic threading process is repeated to achieve automatic threading effect, reduce the workload of the workers and improve work efficiency. When the moving seat 2 slides up and down on the surface of the upper wire feeding module 1, the two sets of guide rails 3 limit the moving seat 2 from both sides, improve the stability of the moving seat 2 and the wire clamped on the moving seat 2 during movement. Furthermore, the first drive component 5 realizes the synchronous movement adjustment of the clamping roller 11, tungsten steel clamping wheel 12 and wire tube 16, which makes the movement of the wire during the threading process more stable.

[0024] Example 2 Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 3 As shown below, see details: In a preferred embodiment, the first drive assembly 5 includes a drive gear and a drive motor. The drive gear is rotatably connected to the movable seat 2, and the drive motor for adjusting the rotation of the drive gear is connected to the movable seat 2 by bolts. In use, the drive gear is rotated by the drive motor, and then the movable seat 2 and the wire tube 16 set on the movable seat 2 are moved up and down under the guidance of the two guide rails 3 through the meshing of the drive gear and the rack 4.

[0025] In a preferred embodiment, the wire cutting assembly includes a second pneumatic push rod 17 and a wire cutting cutter 18. The second pneumatic push rod 17 is disposed below the upper wire feeding module 1. The output end of the second pneumatic push rod 17 is fixedly connected to the wire cutting cutter 18. The second pneumatic push rod 17 drives the wire cutting cutter 18 to move toward the wire and cut the wire.

[0026] In a preferred embodiment, a first guide wheel 21 is rotatably connected to the automatic tensioning module plate 20. A tension sensor 24 for detecting the tension of the thread passing through the outer wall of the first guide wheel 21 is fixedly installed on the automatic tensioning module plate 20 and directly above the first guide wheel 21. A second guide wheel 23 is rotatably connected to the automatic tensioning module plate 20 and located on one side of the first guide wheel 21. A tensioning wheel 22 is provided between the first guide wheel 21 and the second guide wheel 23. A moving assembly is provided between the tensioning wheel 22 and the automatic tensioning module plate 20. The moving assembly includes a second drive assembly 25 and a transmission belt 26. The transmission belt 26 is rotatably connected to the automatic tensioning module plate 20. The second drive assembly 25 is provided on the automatic tensioning module plate 20 to drive the transmission belt 26. The second drive assembly 25 includes a pulley. The system includes a drive motor that drives a pulley to rotate, which in turn drives a transmission belt 26. A movable block is slidably connected to the surface of the automatic tensioning module plate 20, and a tightening wheel 22 is rotatably connected to the movable block. The movable block and the tightening wheel 22 are slidably connected via a movable component. The thread on the pressing module assembly 19 first passes through the upper outer wall of the first guide wheel 21, then passes through the lower outer wall of the tightening wheel 22, and finally passes through the upper outer wall of the second guide wheel 23 before exiting. A tension sensor 24 detects the tension of the thread passing through the upper outer wall of the first guide wheel 21. When excessive tension is detected, the second drive assembly 25 drives the transmission belt 26 to rotate, causing the tightening wheel 22 on the movable block to move upwards for adjustment, thereby reducing the tension of the thread.

[0027] In a preferred embodiment, a third guide wheel 27 is rotatably connected directly above the upper wire feeding module 1, and an automatic wire feeding module 6 is provided below the upper wire feeding module 1 to guide the wire. The wire passes through the upper end of the outer wall of the third guide wheel 27, and after passing through the upper wire feeding module 1, the wire passes through the automatic wire feeding module 6 and returns to the pressing module assembly 19, thereby making the wire form a cycle.

[0028] In this embodiment, the drive motor, the first pneumatic push rod 13, the second pneumatic push rod 17, the wire pressing module assembly 19, the tension sensor 24, and the second drive assembly 25 are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, and we will not elaborate further.

[0029] The working process of this utility model is as follows: First, the wire on the upper wire spool is fed to the pressing module assembly 19. Then, the wire passes through the upper outer wall of the first guide wheel 21, then through the lower outer wall of the tightening wheel 22, and finally through the upper outer wall of the second guide wheel 23. Then, the wire passes through the upper end of the outer wall of the third guide wheel 27. Finally, after the wire passes through the upper wire feeding module 1, the wire passes through the automatic wire feeding module 6 and returns to the pressing module assembly 19, so that the wire forms a cycle. In actual use, the first pneumatic push rod 13 drives the connecting seat 14 to move laterally. Then, the movement of the connecting seat 14 drives the driven shaft 8 and the driven gear 10 set on the driven shaft 8 to move closer to the driving gear 9. Then, the servo motor drives the driving shaft 7 to rotate. The rotating driving shaft 7 realizes the transmission of the driven shaft 8 through the meshing between the driving gear 9 and the driven gear 10. Through the rotation of the driving shaft 7 and the driven shaft 8, the wire clamping roller 11 and the tungsten steel clamping wheel 12 sleeved and connected to the outside of the driving shaft 7 and the driven shaft 8 rotate. The rotating wire clamping roller 11 and the tungsten steel clamping wheel 12 clamp and transmit the wire, and the wire passes through the wire guide tube 16 to the upper wire feeding module 1. Furthermore, the drive motor drives the drive gear to rotate, and then the drive gear meshes with the rack 4, causing the moving seat 2 and the wire tube 16 set on the moving seat 2 to move up and down under the guidance of the two guide rails 3. Then, through the adjusted wire tube 16, the wire passing through the wire tube 16 passes through the processing hole on the mold plate. After the model on the mold plate is processed, the second pneumatic push rod 17 drives the wire cutting tool 18 to move towards the wire to cut the wire. Then, the above automatic threading process is repeated, thereby achieving automatic threading effect, reducing the workload of the workers and improving work efficiency. The above is the working principle of this automatic threading equipment.

[0030] The automatic tensioning module plate can adjust the cutting tension during the cutting process, keeping the tension within the optimal range, thereby improving cutting efficiency and better cutting quality; This automatic threading machine can operate 24 hours a day without human intervention. It requires minimal operator skills, is easy to learn, and allows one person to operate multiple machines simultaneously.

Claims

1. An automatic threading device, comprising a thread feeding module (1), a thread pressing module assembly (19), and an automatic tensioning module plate (20), characterized in that: The upper wire feeding module (1) is slidably connected to a movable seat (2). Two guide rails (3) are symmetrically fixed inside the upper wire feeding module (1). A rack (4) is fixed inside the upper wire feeding module (1) and located on one side of a guide rail (3). A first drive assembly (5) is provided on the movable seat (2). An active rotating shaft (7) is rotatably connected to the movable seat (2). An active gear (9) is fixedly sleeved on the outside of the active rotating shaft (7). A driven rotating shaft (8) is slidably connected on the movable seat (2) and located on one side of the active rotating shaft (7). A driven gear (10) that meshes with the active gear (9) is fixedly sleeved on the outside of the driven rotating shaft (8). A clamping roller (11) is fixedly sleeved on the outside of the active rotating shaft (7) and located on one side of the active gear (9). A tungsten steel clamping wheel (12) is fixedly sleeved on the outside of the driven rotating shaft (8) and located on one side of the driven gear (10). A wire cutting assembly is provided below the upper wire feeding module (1).

2. The automatic threading device according to claim 1, characterized in that: The first drive assembly (5) includes a drive gear and a drive motor. The drive gear is rotatably connected to the movable seat (2), and the drive motor for adjusting the rotation of the drive gear is connected to the movable seat (2) by bolts.

3. The automatic threading device according to claim 1, characterized in that: The back of the movable seat (2) is fixedly connected to a first pneumatic push rod (13), and a connecting seat (14) is fixedly provided at the output end of the first pneumatic push rod (13). The driven shaft (8) is rotatably connected to the connecting seat (14).

4. The automatic threading device according to claim 1, characterized in that: The top of the upper wire feeding module (1) is fixedly connected to the wire inlet (15), and the bottom of the movable seat (2) is fixedly connected to the wire conduit (16). The bottom of the wire conduit (16) is movably inserted through the bottom wall of the upper wire feeding module (1).

5. The automatic threading device according to claim 1, characterized in that: The wire cutting assembly includes a second pneumatic push rod (17) and a wire cutting tool (18). The second pneumatic push rod (17) is located below the upper wire feeding module (1), and the output end of the second pneumatic push rod (17) is fixedly connected to the wire cutting tool (18).

6. The automatic threading device according to claim 1, characterized in that: The automatic tensioning module plate (20) is rotatably connected to a first guide wheel (21). A tension sensor (24) for detecting the tension of the thread passing through the outer wall of the first guide wheel (21) is fixedly installed on the automatic tensioning module plate (20) and directly above the first guide wheel (21). A second guide wheel (23) is rotatably connected on the automatic tensioning module plate (20) and on one side of the first guide wheel (21). A tightening wheel (22) is provided between the first guide wheel (21) and the second guide wheel (23). A moving component is provided between the tightening wheel (22) and the automatic tensioning module plate (20).

7. An automatic threading device according to claim 6, characterized in that: The moving component includes a second drive component (25) and a transmission belt (26). The transmission belt (26) is rotatably connected to the automatic tensioning module plate (20). The automatic tensioning module plate (20) is provided with a second drive component (25) for driving the transmission belt (26).

8. The automatic threading device according to claim 1, characterized in that: The upper wire feeding module (1) is rotatably connected to a third guide wheel (27) directly above it, and an automatic wire feeding module (6) for guiding the wire is provided below the upper wire feeding module (1).

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