Heat treatment equipment for austenitic stainless steel wires

Abstract

The invention relates to the field of stainless steel wire heat treatment, in particular to austenitic stainless steel wire heat treatment equipment which comprises a heat treatment furnace, a conveying roller is arranged at one end in the heat treatment furnace, sealing holes are formed in the two ends in the heat treatment furnace, rubber sealing rings are installed in the sealing holes, and a rectangular frame is arranged in the heat treatment furnace. Two conveying rollers are rotationally connected into the rectangular frame, and a threaded rod is rotationally connected into the heat treatment furnace. The locking blocks are pushed to extrude the conveying rollers above, so that the fractured part of the steel wire is located right in front of the conveying rollers, the rectangular frame moves to an outlet of the heat treatment furnace to convey the fractured steel wire to the heat treatment furnace, and the situation that an operator needs to exhaust gas in the heat treatment furnace and the sealing device firstly is avoided; and after the temperature in the furnace is reduced to a safe temperature, the fractured steel wire is sent out of the furnace, so that the production efficiency of an austenitic stainless steel wire production line is ensured.

Description

Technical Field

[0001] The invention relates to the field of heat treatment of stainless steel wires, in particular to heat treatment equipment for austenitic stainless steel wires. Background Art

[0002] There are many types of stainless steel wire heat treatment equipment, which can be divided into many types according to their processing technology and use, including vacuum heat treatment furnace, high-frequency induction heating equipment, box-type heat treatment furnace, atmosphere protection heat treatment furnace and annealing furnace.

[0003] Among them, the atmosphere protection heat treatment furnace has inert gas discharged in the furnace, and the atmosphere is controllable and can be adjusted according to the needs of different materials, effectively preventing the oxidation and decarburization of stainless steel wire during the heat treatment process, and improving the surface quality and performance of the product. However, because stainless steel wire needs to be produced continuously, once external air flows into the atmosphere protection heat treatment furnace, it will cause product quality problems in the produced stainless steel wire, and the movement of the stainless steel wire will also cause internal gas leakage, causing harm to production operators. Therefore, the patent application with patent publication number CN206375962U provides a sealing device at the entrance of a continuous annealing furnace, wherein two sets of nitrogen pipes are arranged through the upper and lower furnace doors, and nitrogen is respectively introduced into the upper and lower sealing rollers to make the furnace door and the sealing roller close to each other. A nitrogen seal is formed in the cavity between the sealing rollers, which effectively reduces the air brought into the furnace during the operation of the steel strip. However, in the actual production process, the steel wire may break in the furnace due to reasons such as excessive temperature or asynchronous conveying rollers. When this happens, the heat treatment furnace needs to be opened to send the broken steel wire out of the furnace. However, because the atmosphere protects the heat treatment furnace and emits inert gas and a sealing device at the furnace door, when opening the heat treatment furnace, it is necessary to first remove the gas in the heat treatment furnace and the sealing device, and then wait for the temperature in the furnace to drop to a safe temperature to ensure that the gas and high temperature in the furnace will not pose a danger to the operators. However, it takes a certain amount of time to remove the inert gas and lower the temperature. At this time, the steel wire production line cannot operate, resulting in a significant reduction in the production efficiency of the production line.

[0004] Therefore, a heat treatment device for austenitic stainless steel wire is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a heat treatment equipment for austenitic stainless steel wire to solve the problem that when the steel wire in the heat treatment furnace breaks, it is necessary to first remove the gas in the heat treatment furnace and the sealing device, and then wait for the temperature in the furnace to drop to a safe temperature before sending the broken steel wire out of the furnace, which leads to a significant reduction in the production efficiency of the production line.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A heat treatment device for austenitic stainless steel wire comprises a heat treatment furnace, wherein a transmission roller is arranged at one end of the heat treatment furnace, sealing holes are arranged at both ends of the heat treatment furnace, rubber sealing rings are installed in the sealing holes, a rectangular frame is arranged in the heat treatment furnace, two transmission rollers are rotatably connected in the rectangular frame, a threaded rod is rotatably connected in the heat treatment furnace, the rectangular frame is threadedly connected to the threaded rod, a driving motor connected to the threaded rod is installed on the heat treatment furnace, a wire transfer assembly is installed on the rectangular frame, the wire transfer assembly is connected to the transmission roller, the transmission roller is connected to a rotating member, the rotating member is installed on the rectangular frame, when the steel wire in the heat treatment furnace breaks, the driving motor drives the threaded rod to rotate, the rotating threaded rod drives the rectangular frame to move, when it moves to the steel wire breaking position, the wire transfer assembly squeezes one of the transmission rollers, locks the steel wire breaking position, and moves the steel wire breaking position to the heat treatment furnace outlet through the continued movement of the rectangular frame, and finally drives the transmission roller to rotate through the rotating member to send the steel wire out of the heat treatment furnace.

[0008] Before the wire transfer assembly is started, the rectangular frame is located at the feed inlet of the heat treatment furnace. When the sensor detects that the steel wire in the heat treatment furnace is broken, the PLC controls the driving motor to operate, and the rotating shaft of the driving motor drives the threaded rod to rotate. The rotating threaded rod drives the rectangular frame located at the feed inlet of the heat treatment furnace to move. The movement of the rectangular frame causes the two conveying rollers on the rectangular frame to continuously rotate on the steel wire. When the conveying roller rotates to the broken part of the steel wire, the wire transfer assembly squeezes the upper conveying roller so that the broken part of the steel wire is located directly in front of the conveying roller. When the rectangular frame continues to move, the conveying roller continues to feed the wire. When the rectangular frame moves to the exit of the heat treatment furnace, the broken steel wire is sent to the heat treatment furnace. The broken steel wire is sent out of the heat treatment furnace through the rectangular frame and the wire transfer assembly thereon, avoiding the need for the operator to first remove the gas in the heat treatment furnace and the sealing device, and then wait for the temperature in the furnace to drop to a safe temperature before sending the broken steel wire out of the furnace, thereby ensuring the production efficiency of the austenitic stainless steel wire production line.

[0009] Preferably, the wire relocation assembly includes a drive box, a trigger plate, a locking block, a sliding column, a movable plate, and a first compression spring, the drive box is fixedly mounted on the rectangular frame, one side of the drive box is rotatably connected to the trigger plate, a hole is provided at the bottom of the drive box that passes through the rectangular frame, a locking block is slidably connected in the hole, one end of the locking block abuts against one of the conveying rollers, a drive member is installed in the drive box, and the trigger plate shaft is connected to the locking block through the drive member, a rectangular window is provided on the rectangular frame, a sliding column is fixedly mounted in the rectangular window, a movable plate is sleeved on the sliding column, the movable plate slides in the rectangular window, one of the conveying rollers is rotatably mounted on the movable plate, and the sliding column is sleeved with a first compression spring that abuts against the movable plate and the inner wall of the rectangular window.

[0010] When the rectangular frame moves, the trigger plate will slide on the steel wire on one side. Because the steel wire has a certain hardness, the trigger plate will always be in contact with the steel wire before it moves to the breaking point of the steel wire, and cannot move vertically downward. When the steel wire moves to the side away from the trigger plate, the trigger plate moves vertically downward. Because the trigger plate is rotatably connected to the drive box, the trigger plate will drive the locking block in the hole to move downward through the drive member in the drive box after it rotates downward, and the moving locking block presses against the upper conveying roller. Because the upper conveying roller is rotatably connected to the moving plate, and the moving plate is slidably connected to the sliding column, the upper conveying roller can move up and down a small distance, and cooperate with the downward movement of the locking block to lock the steel wire between the two conveying rollers. Of course, when the steel wire passes through the heat treatment furnace, it will pull the trigger plate to flip upward, and the rotating trigger drives the locking column to move upward through the drive member, and the conveying roller is locked by the swing of the trigger plate, ensuring that the breaking point of the steel wire can be located in front of the conveying roller.

[0011] It should be noted that the driving member includes a rotating rod rotatably connected to the driving box, the rotating rod is fixedly installed with the trigger plate, a small gear is installed on the rotating rod, a round rod is rotatably connected inside the driving box, a large gear meshing with the small gear is installed inside the round rod, and a latch tooth meshing with the large gear is provided on the locking block. The locking block is driven up and down by the rotation of the trigger plate, and the gear structure makes the driving member suitable for the high temperature environment in the heat treatment furnace.

[0012] Preferably, the driving box is provided with a first gear, the first gear is meshedly connected with two symmetrically arranged first racks, a sliding box is fixedly installed on the rectangular frame, and sliding grooves are provided on both sides of the sliding box, and abutment columns are slidably connected in the sliding grooves, and a second compression spring is installed between the abutment columns and the inner wall of the sliding grooves, a first connecting rod is fixedly installed between the first rack located below the first gear and the abutment column on one side, and a second connecting rod is fixedly installed between the first rack located above the first gear and the abutment column on the other side, a groove for the first connecting rod and the second connecting rod to move is provided on the sliding box, a telescopic rod is fixedly installed in the heat treatment furnace, and when the rectangular frame moves to the discharge port of the heat treatment furnace, the abutment column abuts against the telescopic rod.

[0013] Because the trigger plate rotates on the drive box, the trigger plate will always abut against the steel wire after the steel wire passes under it, and the long-term high-speed travel of the steel wire will cause certain wear on the trigger plate, causing damage to the trigger plate, and the trigger plate needs to be flipped upward when the rectangular frame moves to the exit to push the steel wire out, so that the trigger plate needs to be flipped upward before the steel wire is disconnected and when the wire feeding is about to be completed. Specifically, when the rectangular frame is located at the feed port of the heat treatment furnace, the abutment column on the right side of the sliding box will abut against the inner wall of the heat treatment furnace, so that the abutment column will push the connected second connecting rod to move to one side. Because the second connecting rod is connected to the first rack above, it will push the first rack above to move to one side. Because the first rack is meshed with the first gear, the first gear will rotate, and the rotation of the first gear drives the trigger plate to flip through the driving member. When the rectangular frame is in its original position, the trigger plate flips upward and does not contact the steel wire. Similarly, when the rectangular frame is located at the discharge port of the heat treatment furnace, the abutment column on the left side of the sliding box will abut against the inner wall of the heat treatment furnace, so that the abutment column will push the connected first connecting rod to move to one side. Because the first connecting rod is connected to the first rack below, it will push the first rack below to move to one side, causing the first gear to rotate. The rotation of the first gear drives the trigger plate to flip through the driving member, so that the steel wire can pass through the heat treatment furnace, and flips upward before the rectangular frame moves and when it moves to the exit to push the steel wire out, thereby avoiding wear of the trigger plate while ensuring that the steel wire can be pushed out stably. The movement of the rectangular frame pushes the abutment column to trigger, so that the trigger plate will flip synchronously when the rectangular frame moves, thereby ensuring the synchronization of the flipping of the trigger plate.

[0014] Preferably, the rotating member includes a second gear and a second rack, the rotating shaft of the conveying roller extends to the other end of the movable plate and is fixedly installed with a second gear, and the inner wall of the heat treatment furnace on the side close to the outlet is fixedly installed with a second rack, and when the rectangular frame is close to the outlet of the heat treatment furnace, the second rack engages with the second gear.

[0015] Because it is necessary to ensure that the steel wire is pushed out smoothly, it is necessary to ensure that the steel wire is in a straight state before the steel wire enters the sealing hole, so the steel wire will be very close to the conveying roller, and the steel wire cannot pass through the sealing hole at this time. Therefore, when the steel wire is close to the sealing hole, the steel wire is pushed to move so that the steel wire enters the sealing hole. Specifically, when the rectangular frame is close to the exit of the heat treatment furnace, the second rack and the second gear collide with each other and mesh together, and the continued movement of the rectangular frame causes the second gear to move on the second rack and rotate. The rotating second gear rotates and drives the connected conveying roller to rotate, and the steel wire is sent into the sealing hole through the rotation of the conveying roller. The steel wire is pushed to move so that the wire transfer assembly can completely send the steel wire out of the heat treatment furnace, and the movement of the rectangular frame drives the rotating part to operate. The structure is simple and there is no need to use a drive motor to drive the conveying roller to rotate, which avoids the high temperature environment in the heat treatment furnace affecting the use of the drive motor, reduces production costs, and ensures the service life of the device.

[0016] Preferably, the two sides of the lower conveying roller are recessed toward the middle part, and the lower conveying roller is provided with two symmetrically arranged threaded convex marks. When the conveying roller rotates, it drives the steel wire abutting thereon to move toward the middle. The lower conveying roller is provided with a wire groove, and the guide groove is located in the middle of the threaded convex marks on both sides.

[0017] When the steel wire breaks, it will cause one side of the steel wire to deviate, which may cause the steel wire to deviate when the conveyor roller moves. Therefore, the rotation of the conveyor roller below causes the thread ridges to rotate, and the continuously rotating thread ridges on both sides continuously concentrate the steel wire that is deviated to one side toward the center, so that the deviated steel wire falls back into the middle guide groove, and the steel wire moves straight through the middle guide groove. Of course, the middle part of the conveyor roller is concave inward, which further ensures that the deviated steel wire will return to the guide groove to move, and ensures that the broken steel wire can be sent out of the heat treatment furnace intact.

[0018] Preferably, the middle portion of the upper conveying roller protrudes outward, and an arc-shaped groove which is inversely parallel to the axis of the upper conveying roller is opened on the upper conveying roller, and the cross-section of the arc-shaped groove is arranged in a trapezoidal shape.

[0019] By opening an arc groove with a trapezoidal cross-section, the lateral friction of the upper conveying roller is increased, so that the steel wire can move more stably. Because the two side corners of the arc groove abut against the steel wire, the inclined arc groove side walls prevent the steel wire from falling off due to gravity.

[0020] Preferably, a circular hole is provided on the inner wall of the heat treatment furnace, a wire feeding tube is slidably connected in the circular hole, one end of the wire feeding tube abuts against a rubber sealing ring, and the end of the wire feeding tube close to the rubber sealing ring is conical, and the end of the wire feeding tube away from the rubber sealing ring is slidably connected to a wire feeding bucket, the wire feeding bucket slides in the wire feeding tube, a third compression spring is fixedly installed on the inner wall of the heat treatment furnace, and the third compression spring is sleeved on the wire feeding bucket.

[0021] After the rectangular frame moves into place, it presses against the wire feeding bucket, and the steel wire will be pushed into the wire feeding bucket. Of course, the end of the wire feeding tube close to the rubber sealing ring is conical, and the continuously approaching rectangular frame will push the wire feeding tube to move through the wire feeding bucket, and the conical end of the moving wire feeding tube will squeeze the rubber sealing ring, so that the rubber sealing ring is stretched open, making it easier to pass the steel wire through the sealing hole, avoiding the broken steel wire opening from being unable to pass through the rubber sealing ring.

[0022] Preferably, a rectangular notch is opened on one side of the trigger plate, a counterweight roller is rotatably connected in the rectangular notch, and the counterweight roller is made of metal material.

[0023] By setting a counterweight roller, the trigger plate can rotate when it falls and abuts against the steel wire. The rotation of the counterweight roller reduces the wear on the trigger plate. Of course, the counterweight roller made of metal material can also enable the trigger plate to rotate quickly after the steel wire contracts.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. When the conveyor roller rotates to the broken part of the steel wire, the trigger plate pushes the locking block to squeeze the upper conveyor roller, so that the broken part of the steel wire is located directly in front of the conveyor roller, and the rectangular frame moves to the exit of the heat treatment furnace to send the broken steel wire to the heat treatment furnace, avoiding the need for operators to first remove the gas in the heat treatment furnace and the sealing device, and then wait for the temperature in the furnace to drop to a safe temperature before sending the broken steel wire out of the furnace, thereby ensuring the production efficiency of the austenitic stainless steel wire production line.

[0026] 2. When the rectangular frame is in its original position or the rectangular frame is located at the discharge port of the heat treatment furnace, the abutment columns on both sides of the sliding box will abut against the inner wall of the heat treatment furnace, so that the abutment columns will drive the rack to move through the connecting rod, and the gear will rotate through the movement of the rack, and the trigger plate will be driven to flip through the driving member, so that when the rectangular frame is in its original position, the trigger plate will flip upward to avoid wear of the trigger plate. By flipping upward, the trigger plate will avoid long-term contact with the steel wire, thereby increasing the service life of the wire transfer assembly.

[0027] 3. When the rectangular frame is close to the exit of the heat treatment furnace, the second rack and the second gear collide with each other and mesh together, and the continued movement of the rectangular frame causes the second gear to rotate. The rotating second gear drives the connected conveying roller to rotate, and the steel wire is sent into the sealing hole through the rotation of the conveying roller. By pushing the steel wire to move, the wire transfer assembly can completely send the steel wire out of the heat treatment furnace, so that the steel wire with a soft structure can also be sent out of the heat treatment furnace through the rotation of the conveying roller, thereby improving the application range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a structural schematic diagram of a rectangular window on one side of a rectangular frame in the present invention;

[0030] Figure 3 It is a structural schematic diagram of the second gear on one side of the rectangular frame in the present invention;

[0031] Figure 4 It is a schematic diagram of the three-dimensional structure of the conveying roller in the present invention;

[0032] Figure 5 It is a schematic diagram of the internal structure of the sliding box in the present invention;

[0033] Figure 6 It is a schematic diagram of the internal structure of the rectangular frame in the present invention;

[0034] Figure 7 It is a schematic diagram of the internal structure of the heat treatment furnace in the present invention;

[0035] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at point A in the middle.

[0036] In the figure: 1. heat treatment furnace; 2. transmission roller; 3. threaded rod; 4. driving motor; 5. rectangular frame; 6. trigger plate; 7. driving box; 8. transmission roller; 9. rectangular window; 10. sliding column; 11. moving plate; 12. first compression spring; 13. first rack; 14. counterweight roller; 15. first gear; 16. second connecting rod; 17. first connecting rod; 18. sliding box; 19. groove; 20. abutment column; 21. second gear; 22. slide groove; 23. second compression spring; 24. thread convex mark; 25. arc groove; 26. wire groove; 27. second rack; 28. wire feed bucket; 29. ​​third compression spring; 30. telescopic rod; 31. sealing ring; 32. sealing hole; 33. wire feed tube; 34. locking block. DETAILED DESCRIPTION

[0037] See also Figures 1 to 8The present invention provides a heat treatment device for austenitic stainless steel wire, and the technical solution is as follows:

[0038] A heat treatment device for austenitic stainless steel wire comprises a heat treatment furnace 1, a transmission roller 2 is arranged at one end of the heat treatment furnace 1, sealing holes 32 are arranged at both ends of the heat treatment furnace 1, rubber sealing rings 31 are installed in the sealing holes 32, a plurality of rectangular frames 5 are installed in the heat treatment furnace 1, two transmission rollers 8 are rotatably connected in the rectangular frames 5, a threaded rod 3 connected to the rectangular frames 5 is rotatably connected in the heat treatment furnace 1, a driving motor 4 connected to the threaded rod 3 is installed on the heat treatment furnace 1, a wire transfer assembly connected to the transmission roller 8 is installed on the rectangular frame 5, and a rotating part rotatably connected to the transmission roller 8 is installed on the rectangular frame 5.

[0039] The wire relocation assembly includes a driving box 7 fixedly mounted on a rectangular frame 5, a trigger plate 6 is rotatably connected to one side of the driving box 7, a hole is opened at the bottom of the driving box 7, a locking block 34 is slidably connected in the hole, the locking block 34 abuts against the upper conveying roller 8, a driving member connected to the locking block 34 is installed in the driving box 7, a sliding column 10 is fixedly mounted on one side of the rectangular frame 5, a moving plate 11 is sleeved on the sliding column 10, one of the conveying rollers 8 is rotatably mounted on the moving plate 11, and a first compression spring 12 abuts against the moving plate 11 and the inner wall of the rectangular window 9 is sleeved on the sliding column 10.

[0040] The driving member includes a rotating rod rotatably connected to the driving box, the rotating rod is fixedly installed with the trigger plate, a small gear is installed on the rotating rod, a round rod is rotatably connected in the driving box, a large gear meshing with the small gear is installed in the round rod, and a locking block is provided with a locking tooth meshing with the large gear.

[0041] A first gear 15 is installed on the driving box 7, and the first gear 15 is meshed and connected with two first racks 13. A sliding box 18 is fixedly installed on the rectangular frame 5, and both sides of the sliding box 18 are slidably connected with abutment columns 20, and a second compression spring 23 is installed between the abutment columns 20 and the inner wall of the slide groove 22. A first connecting rod 17 is fixedly installed between the lower first rack 13 and the abutment column 20 on one side, and a second connecting rod 16 is fixedly installed between the upper first rack 13 and the abutment column 20 on the other side. A groove 19 for the first connecting rod 17 and the second connecting rod 16 to move is opened on the sliding box 18, and a telescopic rod 30 cooperating with the abutment column 20 is fixedly installed at the exit position of the rectangular frame 5.

[0042] The rotating member includes a second gear 21 , the rotating shaft of the conveying roller 8 extends to the other end of the moving plate 11 and is fixedly mounted to the second gear 21 , and a second rack 27 is fixedly mounted on the inner wall of the heat treatment furnace 1 near the outlet.

[0043] The two sides of the lower conveying roller 8 are recessed toward the middle part, and two symmetrically arranged thread ridges 24 are provided on the lower conveying roller 8. The lower conveying roller 8 is provided with a wire groove 26 located between the thread ridges 24 on both sides. The middle part of the upper conveying roller 8 protrudes outward, and the upper conveying roller 8 is provided with an arc groove 25 which is reversely parallel to its axis, and the cross-section of the arc groove 25 is set in a trapezoidal shape.

[0044] A wire inlet tube 33 is slidably connected to the inner wall of the heat treatment furnace 1, one end of the wire inlet tube 33 abuts against the rubber sealing ring 31, and the end of the wire inlet tube 33 close to the rubber sealing ring 31 is conical, and the end of the wire inlet tube 33 away from the rubber sealing ring 31 is slidably connected to the wire inlet bucket 28, and the wire inlet bucket 28 slides in the wire inlet tube 33, and a third compression spring 29 is fixedly installed on the inner wall of the heat treatment furnace 1, and the third compression spring 29 is mounted on the wire inlet bucket 28.

[0045] A rectangular notch is formed on one side of the trigger plate 6, and a counterweight roller 14 is rotatably connected in the rectangular notch. The counterweight roller 14 is made of metal material.

[0046] See also Figure 1 and Figure 7 When in use, when the sensor detects that the steel wire in the heat treatment furnace 1 is broken, the PLC controls the driving motor 4 to operate, and the rotating shaft of the driving motor 4 drives the threaded rod 3 to rotate. The rotating threaded rod 3 drives the rectangular frame 5 located at the feed port of the heat treatment furnace 1 to move. The movement of the rectangular frame 5 causes the two conveying rollers 8 on the rectangular frame 5 to continuously rotate on the steel wire.

[0047] See also Figure 2 , Figure 3 and Figure 5 When the rectangular frame 5 is located at the feed port of the heat treatment furnace 1, the abutting column 20 on the right side of the sliding box 18 will abut against the inner wall of the heat treatment furnace 1, so that the abutting column 20 will push the connected second connecting rod 16 to move to one side. Because the second connecting rod 16 is connected to the first rack 13 above, it will push the first rack 13 above to move to one side. Because the first rack 13 is meshed with the first gear 15, the first gear 15 will rotate. The rotation of the first gear 15 drives the trigger plate 6 to flip through the driving member, so that when the rectangular frame 5 is in the original position, the trigger plate 6 flips upward and does not contact the steel wire. When the rectangular frame 5 moves away from the feed port, the abutted abutting column 20 will return to its original position due to the second compression spring 23 in the sliding box 18, and push the trigger plate 6 down through the second connecting rod 16, the first rack 13 and the first gear 15 to abut against the steel wire below.

[0048] See also Figure 2 , Figure 3 and Figure 5Of course, the counterweight roller 14 can rotate when the trigger plate 6 falls and abuts against the steel wire. The rotation of the counterweight roller 14 reduces the wear on the trigger plate 6. Of course, the counterweight roller 14 made of metal material can also make the trigger plate 6 swing downward quickly after the steel wire contracts.

[0049] See also Figure 3 , Figure 4 and Figure 6 It should be noted that when the steel wire breaks, it will cause the steel wire on one side to deviate, causing the steel wire to deviate when the conveyor roller 8 moves. Therefore, the rotation of the conveyor roller 8 below causes the thread ridge 24 to rotate, and the continuously rotating thread ridges 24 on both sides continuously concentrate the steel wire that is deviated to one side toward the center, so that the deviated steel wire falls back into the middle guide groove 26, and the steel wire moves straight through the middle guide groove. Of course, the middle part of the conveyor roller 8 is concave inward, which further ensures that the deviated steel wire will return to the guide groove 26 for movement.

[0050] See also Figure 3 , Figure 5 and Figure 6 At the same time, when the rectangular frame 5 moves, the trigger plate 6 will slide on the steel wire on one side. Because the steel wire has a certain hardness, the trigger plate 6 always contacts the steel wire before it moves to the breaking point of the steel wire and cannot move vertically downward. When the steel wire moves to the side away from the trigger plate 6, the trigger plate 6 moves vertically downward. Because the trigger plate 6 is rotatably connected to the drive box 7, the rotating rod on the drive box 7 will rotate, and the large gear is driven to rotate through the small gear on the rotating rod. The large gear rotates and pushes the locking block 34 engaged with it to move downward. The moving locking block 34 presses against the upper conveying roller 8, because the upper conveying roller 8 is rotatably connected to the moving plate 11, and the moving plate 11 is slidably connected to the sliding column 10, so that the upper conveying roller 8 can move up and down a small distance, and cooperate with the downward movement of the locking block 34 to lock the steel wire between the two conveying rollers 8, so that the breaking point of the steel wire is located directly in front of the conveying roller 8.

[0051] See also Figure 3 , Figure 5 and Figure 7 , the rectangular frame 5 continues to move. When the rectangular frame 5 is located at the discharge port of the heat treatment furnace 1, the abutting column 20 on the left side of the sliding box 18 will abut against the inner wall of the heat treatment furnace 1, so that the abutting column 20 will push the connected first connecting rod 17 to move to one side. Because the first connecting rod 17 is connected to the first rack 13 below, it will push the first rack 13 below to move to one side, so that the first gear 15 will rotate. The rotation of the first gear 15 drives the trigger plate 6 to flip through the driving member, so that the steel wire can pass through the heat treatment furnace 1.

[0052] See also Figure 7 and Figure 8 When it is about to move to the position of the discharge port, the rectangular frame 5 will resist the wire feeding bucket 28, and the steel wire will be pushed into the wire feeding bucket 28. Of course, the end of the wire feeding tube 33 close to the rubber sealing ring is conical. The constantly approaching rectangular frame 5 will push the wire feeding tube 33 to move through the wire feeding bucket 28, and the conical end of the moving wire feeding tube 33 will squeeze the rubber sealing ring, so that the rubber sealing ring is stretched, making it easier to pass the steel wire through the sealing hole 32.

[0053] See also Figure 5 and Figure 7 Of course, when the rectangular frame 5 is against the wire feeding bucket 28, the second rack 27 and the second gear 21 collide with each other and mesh together, and the continued movement of the rectangular frame 5 causes the second gear 21 to move on the second rack 27 and rotate. The rotating second gear 21 drives the connected conveying roller 8 to rotate, and the steel wire is fed into the sealing hole 32 through the rotation of the conveying roller 8.

[0054] See also Figure 1 After the broken steel wire is sent out of the heat treatment furnace 1, the PLC controls the driving motor 4 to operate, and the rotating shaft of the driving motor 4 drives the threaded rod 3 to rotate. The rotating threaded rod 3 drives the rectangular frame 5 to move back to the feed port of the heat treatment furnace 1, and the abutment column 20 on the right side of the sliding box 18 continues to abut against the inner wall of the heat treatment furnace 1.

[0055] A specific embodiment of the present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above described embodiment. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. A heat treatment device for austenitic stainless steel wire, comprising a heat treatment furnace (1), wherein one end of the heat treatment furnace (1) is provided with a transmission roller (2), and both ends of the heat treatment furnace (1) are provided with sealing holes (32), and rubber sealing rings (32) are installed in the sealing holes (32), characterized in that: The heat treatment furnace (1) is provided with a rectangular frame (5), two conveying rollers (8) are rotatably connected in the rectangular frame (5), a threaded rod (3) is rotatably connected in the heat treatment furnace (1), the rectangular frame (5) is threadedly connected to the threaded rod (3), a driving motor (4) connected to the threaded rod (3) is installed on the heat treatment furnace (1), a wire transfer assembly is installed on the rectangular frame (5), the wire transfer assembly is connected to the conveying roller (8), the conveying roller (8) is connected to a rotating member, and the rotating member is installed on the On the rectangular frame (5), when the steel wire in the heat treatment furnace (1) breaks, the driving motor (4) drives the threaded rod (3) to rotate, and the rotating threaded rod (3) drives the rectangular frame (5) to move. When it moves to the position where the steel wire breaks, the wire transfer assembly squeezes one of the conveying rollers (8) to lock the position where the steel wire breaks, and through the continued movement of the rectangular frame (5), the broken part of the steel wire is moved to the outlet of the heat treatment furnace (1), and finally the conveying roller (8) is driven to rotate by the rotating member to send the steel wire out of the heat treatment furnace (1).

2. The heat treatment equipment for austenitic stainless steel wire according to claim 1, characterized in that The wire transfer assembly comprises a driving box (7), a trigger plate (6), a locking block (34), a sliding column (10), a movable plate (11), and a first compression spring (12). The driving box (7) is fixedly mounted on the rectangular frame (5). One side of the driving box (7) is rotatably connected to the trigger plate (6). A hole penetrating the rectangular frame (5) is provided at the bottom of the driving box (7). A locking block (34) is slidably connected in the hole. One end of the locking block (34) abuts against one of the conveying rollers (8). The driving box (7) is installed with a The trigger plate (6) is connected to the locking block (34) through a driving member, a rectangular window (9) is provided on the rectangular frame (5), a sliding column (10) is fixedly installed in the rectangular window (9), a moving plate (11) is sleeved on the sliding column (10), and the moving plate (11) slides in the rectangular window (9), one of the conveying rollers (8) is rotatably mounted on the moving plate (11), and a first compression spring (12) is sleeved on the sliding column (10) and abuts against the moving plate (11) and the inner wall of the rectangular window (9).

3. The heat treatment equipment for austenitic stainless steel wire according to claim 1, characterized in that The driving box (7) is provided with a first gear (15), the first gear (15) is meshedly connected with two symmetrically arranged first racks (13), a sliding box (18) is fixedly installed on the rectangular frame (5), both sides of the sliding box (18) are provided with sliding grooves (22), abutment columns (20) are slidably connected in the sliding grooves (22), a second compression spring (23) is installed between the abutment columns (20) and the inner wall of the sliding grooves (22), the first rack (13) located below the first gear (15) and the abutment columns (20) on one side are connected to each other. A first connecting rod (17) is fixedly installed between the connecting columns (20), a second connecting rod (16) is fixedly installed between the first rack (13) located above the first gear (15) and the abutting column (20) on the other side, a groove (19) is provided on the sliding box (18) for the first connecting rod (17) and the second connecting rod (16) to move, a telescopic rod (30) is fixedly installed in the heat treatment furnace (1), and when the rectangular frame (5) moves to the discharge port of the heat treatment furnace (1), the abutting column (20) abuts against the telescopic rod (30).

4. The heat treatment equipment for austenitic stainless steel wire according to claim 2, characterized in that The rotating member comprises a second gear (21) and a second rack (27); the rotating shaft of the conveying roller (8) extends to the other end of the movable plate (11) and is fixedly mounted with the second gear (21); the inner wall of the heat treatment furnace (1) near the outlet is fixedly mounted with the second rack (27); when the rectangular frame (5) is close to the outlet of the heat treatment furnace (1), the second rack (27) is meshed with the second gear (21).

5. The heat treatment equipment for austenitic stainless steel wire according to claim 4, characterized in that The two sides of the conveying roller (8) below are recessed toward the middle part, and two symmetrically arranged thread convex marks (24) are provided on the conveying roller (8) below. When the conveying roller (8) rotates, it drives the steel wire abutting thereon to move toward the middle. The conveying roller (8) below is provided with a guide groove (26), and the guide groove is located in the middle of the thread convex marks (24) on both sides.

6. The heat treatment equipment for austenitic stainless steel wire according to claim 5, characterized in that The middle part of the upper conveying roller (8) protrudes outward, and the upper conveying roller (8) is provided with an arc groove (25) which is parallel to its axis in the opposite direction, and the cross section of the arc groove (25) is set in a trapezoidal shape.

7. The heat treatment equipment for austenitic stainless steel wire according to claim 6, characterized in that A circular hole is provided on the inner wall of the heat treatment furnace (1), and a wire feeding tube (33) is slidably connected in the circular hole. One end of the wire feeding tube (33) abuts against the rubber sealing ring (32), and the end of the wire feeding tube (33) close to the rubber sealing ring (32) is conical. The end of the wire feeding tube (33) away from the rubber sealing ring (32) is slidably connected to a wire feeding bucket (28), and the wire feeding bucket (28) slides in the wire feeding tube (33). A third compression spring (29) is fixedly installed on the inner wall of the heat treatment furnace (1), and the third compression spring (29) is sleeved on the wire feeding bucket (28).

8. The heat treatment equipment for austenitic stainless steel wire according to claim 2, characterized in that A rectangular notch is provided on one side of the trigger plate (6), and a counterweight roller (14) is rotatably connected in the rectangular notch, and the counterweight roller (14) is made of metal material.

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