A heat treatment device for stainless steel wire

Abstract

The present invention belongs to the technical field of heat treatment of stainless steel wires, and specifically relates to a heat treatment device for stainless steel wires, including a heat treatment furnace. A heating unit is provided inside the heat treatment furnace, and a furnace door is provided at the outlet of the heat treatment furnace. The device further includes: a preheating chamber provided at the outlet of the heat treatment furnace, and a number of groups of stainless steel wires are placed inside the preheating chamber; a walking mechanism for pushing the stainless steel wires to move in and out between the preheating chamber and the heat treatment furnace. By providing a preheating chamber at the opening of the heat treatment furnace, during the heat treatment process, the heat dissipated by the stainless steel wires that are air-cooled in the preheating chamber is used to preheat the remaining stainless steel wires to be processed. The preheating treatment not only helps to improve the quality of the steel wires, reduce the heating time required for subsequent heat treatment, and improve production efficiency, but also realizes the reuse of the heat in the steel wires after heat treatment, and improves the problem of wasted heat energy.

Description

Technical Field

[0001] The present invention belongs to the field of heat treatment of stainless steel wires, and specifically relates to a heat treatment device for stainless steel wires. Background Art

[0002] In the production process of stainless steel wires, in order to eliminate the residual stress generated during the cold working process of stainless steel wires, improve the toughness of the material, and enhance the corrosion resistance of the material, it is necessary to perform heat treatment such as annealing on the stainless steel wires. The heat treatment of stainless steel wires not only includes heating and holding the stainless steel wire material, but also includes cooling after holding. Among them, air cooling is a common cooling method, which is used to help the material obtain better performance during the heat treatment process.

[0003] A patent document with the publication number CN217600799U discloses a heat treatment device for stainless steel wires, including a bottom plate and a heat treatment box body. An extrusion type limiting mechanism for fixing the stainless steel wire body is provided inside the heat treatment box body, and an oil fume separation mechanism is arranged at the inner top of the heat treatment box body. By setting the extrusion type limiting mechanism and the oil fume separation mechanism, while ensuring the limitation of stainless steel wires of different specifications, the impurities in the heat treatment flue gas can be effectively separated.

[0004] The above technical solution still has some problems in practical applications. When heat treating multiple groups of stainless steel wires, it is necessary to alternately perform the work of taking out and putting in the stainless steel wires, and air-cool the heat-treated steel wires. The above solution does not recycle the heat dissipated by the stainless steel wires during air cooling, resulting in waste of heat and an energy waste problem.

[0005] Therefore, the present invention provides a heat treatment device for stainless steel wires. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A heat treatment device for stainless steel wires according to the present invention includes a heat treatment furnace, a heating unit is provided inside the heat treatment, a furnace door is provided at the outlet of the heat treatment furnace, and further includes: a preheating chamber provided at the outlet of the heat treatment furnace, and a number of groups of stainless steel wires are placed inside the preheating chamber; a traveling mechanism for pushing the stainless steel wires to move in and out between the preheating chamber and the heat treatment furnace, and the traveling mechanism includes a traveling trolley.

[0008] Preferably, a replacement part is provided inside the preheating chamber. The replacement part includes: a turntable rotatably arranged inside the preheating chamber; several hanging plates hung on the turntable, and the several hanging plates are longitudinally and annularly distributed. The top end of the hanging plate is rotatably connected to the turntable; a storage frame arranged in the hanging plate, and the storage frame is used for placing stainless steel wires.

[0009] Preferably, the traveling mechanism further includes: a slide rail for guiding the traveling trolley; a push plate arranged at the end of the traveling trolley for pushing the storage frame. The push plate is a unidirectional rotation structure. A notch corresponding to the push plate is arranged at the bottom of the hanging plate, and the push plate is located outside the turntable.

[0010] Preferably, a top-pushing part is further included. The top-pushing part is used for pushing the storage frame on the traveling trolley upward. The top-pushing part includes a top plate movably arranged at the top end of the traveling trolley.

[0011] Preferably, the replacement part further includes a material guiding plate arranged inside the preheating chamber. The material guiding plate is used for guiding the storage frame on the top plate into the hanging plate. The material guiding plate is inclined. A through groove corresponding to the top plate is arranged at the bottom end of the material guiding plate, and the width of the through groove is smaller than the width of the storage frame.

[0012] Preferably, the top-pushing part further includes several groups of rotating plates parallel to each other. The two ends of the rotating plate are respectively rotatably connected to the traveling trolley and the top plate.

[0013] Preferably, the rotating plate includes: an outer plate rotatably arranged at the top end of the traveling trolley; an inner plate rotatably arranged at the bottom end of the top plate. The inner plate is movably inserted inside the outer plate; a clamping groove arranged on the inner plate; a clamping block slidably arranged at the bottom end of the outer plate; a spring arranged on the outer plate for pushing the clamping block to insert into the inside of the clamping groove.

[0014] Preferably, after the top plate moves down and stops on the traveling trolley, the rotating plate is inclined, and the inner plate is lower than the outer plate.

[0015] Preferably, the top-pushing part further includes: a driven plate fixedly connected to the bottom of the outer plate; a support platform arranged on the slide rail; a dial plate rotatably arranged on the support platform. The dial plate is a unidirectional rotation structure. After the traveling trolley moves from the heat treatment furnace into the preheating chamber, the dial plate contacts the driven plate and pushes the rotating plate to rotate; a cross plate fixedly connected to the support platform, and the cross plate is used for pushing the rotating plate to rotate back.

[0016] Preferably, the pushing part further includes: a convex rod fixedly connected to the clamping block; a pressing plate fixedly connected to the bottom of the top plate, and a slope for pushing the convex rod to move is provided at the bottom of the pressing plate; during the rotation of the rotating plate and the upward movement of the top plate driven by it, the pressing plate contacts the convex rod and pushes the clamping block to separate from the clamping groove.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. For the stainless steel wire heat treatment equipment of the present invention, by arranging a preheating chamber at the opening of the heat treatment furnace, during the heat treatment process, the heat dissipated by the stainless steel wire that is air-cooled in the preheating chamber is used to preheat the remaining stainless steel wire to be processed. The preheating treatment not only helps to improve the quality of the wire, reduce the heating time required for subsequent heat treatment, improve production efficiency, but also realizes the reuse of the heat in the heat-treated wire, and improves the problem of wasted heat energy.

[0019] 2. For the stainless steel wire heat treatment equipment of the present invention, by arranging an odd number of hanging plates and storage frames on the turntable, during the movement of the walking trolley along the slide rail, the storage frame at the working station is automatically taken away and sent into the heat treatment furnace, and then the turntable automatically rotates due to the change of the center of gravity, and the next set of storage frames loaded with stainless steel wire is moved into the working station, which can realize continuous operation and improve work efficiency.

[0020] 3. For the stainless steel wire heat treatment equipment of the present invention, by using the movement of the walking trolley and cooperating with the pushing part, the function of automatically placing the heat-treated storage frame on the turntable and the automatic rotation and reset of the rotating plate can be realized, which can be continuously recycled, with high automation and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is the overall three-dimensional view of Embodiment 1 of the present invention;

[0023] Figure 2 is the front view of the internal structure of the preheating chamber and the heat treatment furnace;

[0024] Figure 3 is the front view of the replacement part and the walking mechanism;

[0025] Figure 4 is the exploded view of the replacement part and the support table;

[0026] Figure 5 is the exploded view of the walking mechanism;

[0027] Figure 6 is the bottom view of the matching structure of the top plate and the rotating plate;

[0028] Figure 7 It is an exploded view of the top plate and the rotating plate;

[0029] Figure 8 It is an exploded view of a single set of rotating plates and clamping blocks;

[0030] In the figure: 1. Heat treatment furnace; 11. Furnace door; 2. Preheating chamber; 3. Traveling mechanism; 31. Traveling trolley; 32. Slide rail; 33. Pushing plate; 4. Replacement part; 41. Turntable; 42. Hanging plate; 43. Storage frame; 44. Material guiding plate; 5. Pushing part; 51. Top plate; 52. Rotating plate; 521. Outer plate; 522. Inner plate; 523. Card slot; 524. Clamping block; 525. Spring; 53. Driven plate; 54. Support platform; 55. Poking plate; 56. Cross plate; 57. Convex rod; 58. Pressing plate. Specific embodiments

[0031] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0032] Example 1: As Figure 1-2 shown, a stainless steel wire heat treatment device according to an embodiment of the present invention includes a heat treatment furnace 1 with a heating unit inside, and a furnace door 11 is provided at the outlet of the heat treatment furnace 1. It further includes: a preheating chamber 2 provided at the outlet of the heat treatment furnace 1, and a plurality of groups of stainless steel wires are placed inside the preheating chamber 2; a traveling mechanism 3 for pushing the stainless steel wires in and out between the preheating chamber 2 and the heat treatment furnace 1, and the traveling mechanism 3 includes a traveling trolley 31.

[0033] Specifically, the heat treatment furnace 1 is preferably but not limited to a box-type resistance furnace, and the heating unit therein is a resistance heating device. The traveling mechanism 3 is preferably but not limited to a trolley device, and the traveling trolley 31 travels between the heat treatment furnace 1 and the preheating chamber 2; when annealing and other heat treatments are performed on the stainless steel wires, a group of stainless steel wires are placed on the traveling mechanism 3, the furnace door 11 is opened, and the traveling trolley 31 is pushed into the heat treatment furnace 1 manually or electrically. After closing the furnace door 11, the heat treatment furnace 1 is started to perform heat treatment on the stainless steel wires.

[0034] After the heat treatment is completed, the furnace door 11 is opened, and the heat-treated high-temperature stainless steel wires are placed inside the preheating chamber 2 for air cooling, and another group is placed on the traveling trolley 31 to continue the heat treatment. During the heat treatment process, the heat dissipated by the stainless steel wires being air-cooled in the preheating chamber 2 is used to preheat the remaining stainless steel wires to be treated. The preheating treatment not only helps to improve the quality of the steel wires, reduce the heating time required for subsequent heat treatment, improve production efficiency, but also realizes the reuse of the heat in the heat-treated steel wires, and improves the problem of heat energy waste.

[0035] It should be noted that the preheating chamber 2 in this embodiment adopts a closed structure. According to the specific requirements of the air cooling method after the heat treatment, the preheating chamber 2 can also adopt other structures such as an open structure.

[0036] like Figure 2-4 As shown, a replacement part 4 is provided inside the preheating chamber 2, and the replacement part 4 includes: a turntable 41 rotatably provided in the preheating chamber 2; a plurality of hanging plates 42 hung on the turntable 41, the plurality of hanging plates 42 are evenly distributed in a longitudinal ring shape, and the top of the hanging plates 42 is rotatably connected to the turntable 41; a storage frame 43 provided in the hanging plates 42, and the storage frame 43 is used to place the stainless steel wire.

[0037] Specifically, a support frame is provided in the preheating chamber 2, and the turntable 41 is rotatably mounted on the support frame. The number of the storage frames 43 is an odd number, and the overall center of gravity of the hanging plate 42 is biased downward. The storage frames 43 are located inside the lower half of the hanging plate 42. By setting the hanging plate 42, during the rotation of the turntable 41, the hanging plate 42 and the storage frames 43 always maintain the same posture. Taking the setting of three storage frames 43 on the turntable 41 as an example, Figure 2 In the figure, the storage frame 43 at the lower right is a working station, and the other storage frames 43 are standby stations. The storage frames 43 in the working station are aligned with the heat treatment furnace 1 so that the storage frames 43 can be directly delivered into the heat treatment furnace 1.

[0038] like Figure 2-5 As shown, the walking mechanism 3 also includes: a slide rail 32 for guiding the walking trolley 31; a push plate 33 provided at the end of the walking trolley 31 for pushing the storage frame 43, the push plate 33 is a one-way rotating structure, and a notch corresponding to the push plate 33 is provided at the bottom of the hanging plate 42, and the push plate 33 is located on the outside of the turntable 41.

[0039] Specifically, two ear plates for supporting the storage frame 43 are provided at the bottom of the hanging plate 42, and a gap is formed between the two ear plates, and the gap is through-through from left to right. The slide rail 32 is located inside the preheating chamber 2 and extends to the inside of the heat treatment furnace 1. When the heat treatment furnace 1 and the preheating chamber 2 are placed on the ground, the slide rail 32 and the walking trolley 31 are also placed on the ground, and the push plate 33 is always out of contact with the turntable 41. The walking trolley 31 is located below the storage frame 43 in the working station.

[0040] Initially, the push plate 33 is located on the left side of the storage frame 43 in the working station, and the steel wire to be processed is placed in each storage frame 43. When performing heat treatment, the furnace door 11 is opened, and the walking trolley 31 is pushed to move rightward. The walking trolley 31 pushes the storage frame 43 in the working station to move through the push plate 33 until the storage frame 43 is separated from the hanging plate 42 and stops on the walking trolley 31. Then, the walking trolley 31 delivers the storage frame 43 loaded with the stainless steel wire into the heat treatment furnace 1;

[0041] After the storage frame 43 in the working station is taken away, it becomes in an unloaded state, and the overall center of gravity of the turntable 41 changes and it rotates automatically until the unloaded hanging plate 42 rotates to the top, and the next hanging plate 42 loaded with the storage frame 43 rotates into the working station;

[0042] After the heat treatment is completed, the walking trolley 31 moves leftward from the heat treatment furnace 1 into the preheating chamber 2. First, the heat-treated storage frame 43 is placed in the unloaded hanging plate 42 at the top of the turntable 41, and then the walking trolley 31 continues to move leftward to the initial position, and the push plate 33 also moves to the left side of the working station; then, by pushing the walking trolley 31 to move rightward, the next set of storage frames 43 loaded with steel wires can be sent into the heat treatment furnace 1. In this way, continuous heat treatment work can be realized. When the heat-treated stainless steel wires are air-cooled, the remaining stainless steel wires are preheated. After the air-cooling is completed, the air-cooled stainless steel wires in the storage frame 43 are taken out and new steel wires to be processed are put in. The taking and placing work of the stainless steel wires occurs during the operation of the heat treatment furnace 1 without occupying extra time. Therefore, the continuity of the heat treatment of multiple groups of steel wires can be further improved, and the overall work efficiency can be improved.

[0043] It should be noted that, in order to further improve the stability of the turntable 41, a damping member can be provided on the rotating shaft of the turntable 41 so that the turntable 41 can maintain a non-rotating stable state when three storage frames 43 are loaded on it, and only when the storage frame 43 in the working station is taken away, the turntable 41 will rotate due to the change of the center of gravity.

[0044] As Figure 3-7 shown, it further includes a top-pushing part 5. The top-pushing part 5 is used to push the storage frame 43 on the walking trolley 31 upward. The top-pushing part 5 includes a top plate 51 movably arranged at the top of the walking trolley 31.

[0045] Specifically, the top plate 51 is horizontally placed and the top plate 51 can move in the longitudinal direction so as to push the heat-treated storage frame 43 upward into the unloaded hanging plate 42 at the top of the turntable 41.

[0046] As Figure 2 shown, the replacement part 4 further includes a guide plate 44 arranged inside the preheating chamber 2. The guide plate 44 is used to guide the storage frame 43 on the top plate 51 into the hanging plate 42. The guide plate 44 is inclined. A through groove corresponding to the top plate 51 is provided at the bottom end of the guide plate 44, and the width of the through groove is smaller than the width of the storage frame 43.

[0047] Specifically, the end of the guide plate 44 close to the hanging plate 42 is inclined downward. A guiding groove for guiding the storage frame 43 is provided in the guide plate 44. The width of the through groove is larger than the width of the top plate 51. In Figure 2After the heat treatment is completed, the traveling trolley 31 moves to the left. After the traveling trolley 31 moves to the outside of the heat treatment furnace 1, the top plate 51 is lifted upward so that the heat-treated storage frame 43 is located above the material guiding plate 44, and the top plate 51 is located in the through groove. After the traveling trolley 31 and the top plate 51 continue to move to the left, the storage frame 43 is driven to continue moving to the left in the material guiding plate 44, and the storage frame 43 slides along the guiding groove in the material guiding plate 44 into the empty hanging plate 42 at the top of the turntable 41. In this way, the function of transporting the heat-treated storage frame 43 to the hanging plate 42 at the top of the turntable 41 is realized.

[0048] As Figure 3-7 shown, the pushing part 5 further includes a plurality of groups of rotating plates 52 parallel to each other. The two ends of the rotating plate 52 are respectively rotatably connected to the traveling trolley 31 and the top plate 51.

[0049] Specifically, taking the number of the rotating plates 52 being set to two groups as an example for illustration, the two groups of rotating plates 52, the top plate 51 and the traveling trolley 31 form a parallelogram mechanism. After the rotating plate 52 rotates, it can drive the top plate 51 to rotate, and the top plate 51 always remains horizontal during the rotation process, thereby ensuring the stability of the storage frame 43 located on the top plate 51.

[0050] As Figure 3-8 shown, the rotating plate 52 includes: an outer plate 521 rotatably arranged at the top of the traveling trolley 31; an inner plate 522 rotatably arranged at the bottom of the top plate 51, and the inner plate 522 is movably inserted into the inside of the outer plate 521; a clamping groove 523 arranged on the inner plate 522; a clamping block 524 slidably arranged at the bottom of the outer plate 521; a spring 525 arranged on the outer plate 521 for pushing the clamping block 524 to insert into the inside of the clamping groove 523.

[0051] Specifically, since the rotating plate 52 is in a rotational motion, the overall movement trajectory of the top plate 51 is arc-shaped. In order to realize repeated work, after the top plate 51 rotates and sends the storage frame 43 to the material guiding plate 44, it needs to rotate back to its original position. If the length of the rotating plate 52 remains unchanged, the rotating plate 52 may contact the storage frame 43 in the material guiding plate 44 during rotation and drive the storage frame 43 to move to the right, resulting in a situation where the storage frame 43 is prevented from sliding into the hanging plate 42. To improve this problem, the rotating plate 52 is set to a telescopic structure. Initially, the inner plate 522 extends outward relative to the outer plate 521, and the clamping block 524 is inserted into the clamping groove 523 to fix the inner plate 522. The overall length of the rotating plate 52 is longer and remains fixed, so as to push the storage frame 43 upward into the material guiding plate 44;

[0052] After the top plate 51 moves upward, the inner plate 522 is located above the outer plate 521. When the rotating plate 52 rotates back to its original position, the clamping block 524 is removed, and under the action of gravity, the inner plate 522 automatically shrinks into the interior of the outer plate 521, shortening the overall length of the rotating plate 52, causing the top plate 51 to move downward below the material guiding plate 44. Then, when the rotating plate 52 rotates, the top plate 51 does not contact the material guiding plate 44 and naturally does not contact the storage frame 43 located in the material guiding plate 44, thus improving the above problems.

[0053] As Figure 6 shown, after the top plate 51 moves downward and stops on the walking trolley 31, the rotating plate 52 is inclined, and the inner plate 522 is lower than the outer plate 521.

[0054] Specifically, after the rotating plate 52 rotates back to its initial state, the rotating plate 52 is in an inclined state, the inner plate 522 is located below the outer plate 521, and under the action of gravity, the inner plate 522 automatically extends outward. After the inner plate 522 extends outward, the clamping block 524 is pushed by the spring 525 and reinserted into the card slot 523, and the rotating plate 52 automatically returns to a state with a longer overall length and a fixed length without manual operation.

[0055] Embodiment 2: As Figure 3-5 shown, compared with Embodiment 1, another implementation manner of the present invention is that the top pushing part 5 further includes: a driven plate 53 fixedly connected to the bottom of the outer plate 521; a support platform 54 provided on the slide rail 32; a dial plate 55 rotatably provided on the support platform 54, the dial plate 55 is a one-way rotation structure. After the walking trolley 31 moves from the heat treatment furnace 1 into the preheating chamber 2, the dial plate 55 contacts the driven plate 53 and pushes the rotating plate 52 to rotate; a cross plate 56 fixedly connected to the support platform 54, and the cross plate 56 is used to push the rotating plate 52 to rotate back.

[0056] Specifically, after the heat treatment is completed, the walking trolley 31 moves to the left. After the walking trolley 31 moves to the left, the driven plate 53 contacts the dial plate 55, and the dial plate 55 presses the driven plate 53, causing the rotating plate 52 to start rotating. After the rotating plate 52 rotates, it drives the top plate 51 to move upward, sending the storage frame 43 into the material guiding plate 44;

[0057] After the walking trolley 31 continues to move to the left, the driven plate 53 is separated from the dial plate 55 and the cross plate 56 contacts the rotating plate 52. The cross plate 56 pushes the rotating plate 52 to rotate back. After the rotating plate 52 rotates back, it stops on the walking trolley 31. Then, the walking trolley 31 can pass under the storage frame 43 in the working station until the walking trolley 31 moves to the left to the initial position. In this way, after the heat treatment is completed, during the movement of the walking trolley 31, the functions of automatic rotation and rotation back of the rotating plate 52 are realized.

[0058] It should be noted that the position, specific structure and size of the cross plate 56 can be selected according to the actual situation, and other structures that meet the requirement that the cross plate 56 can push the rotating plate 52 to rotate back and do not affect the movement of the walking trolley 31 are applicable to the manufacture of the cross plate 56; a plurality of dial plates 55 can be provided, and the number and position of the dial plates 55 correspond to the driven plate 53, so that a plurality of rotating plates 52 can be in contact with the dial plates 55 at the same time and rotate simultaneously, which can improve the problem that stress concentration occurs on a single rotating plate 52 due to the force on a single rotating plate 52.

[0059] As Figure 3-8 shown, the top-pushing part 5 further includes: a convex rod 57 fixedly connected to the clamping block 524; a pressing plate 58 fixedly connected to the bottom of the top plate 51, and a slope for pushing the convex rod 57 to move is provided at the bottom of the pressing plate 58; during the process that the rotating plate 52 rotates and drives the top plate 51 to move upward, the pressing plate 58 contacts the convex rod 57 and pushes the clamping block 524 to separate from the clamping groove 523.

[0060] Specifically, when the rotating plate 52 rotates and drives the top plate 51 to move upward, the rotating plate 52 moves relative to the top plate 51, and the convex rod 57 rotates together with the rotating plate 52. Initially, the pressing plate 58 does not contact the convex rod 57. When the rotating plate 52 rotates into a vertical position and the top plate 51 moves upward until the storage frame 43 is sent into the guide plate 44, the convex rod 57 contacts the lower end of the pressing plate 58. The pressing plate 58 drives the convex rod 57 and the clamping block 524 to move through the slope at the bottom, so that the clamping block 524 separates from the clamping groove 523. Then, the inner plate 522 can automatically move downward under the action of gravity and shrink into the outer plate 521, and the overall length of the rotating plate 52 becomes shorter, and the top plate 51 also moves downward to below the guide plate 44; then, the rotating plate 52 contacts the cross plate 56 and rotates back, and the top plate 51 does not contact the guide plate 44 all the time during the process of rotating back to the initial position.

[0061] Working principle: Put the steel wires to be processed into each storage frame 43. When performing heat treatment such as annealing on the stainless steel wires, open the furnace door 11, and push the walking trolley 31 into the heat treatment furnace 1 manually or electrically. Push the walking trolley 31 to move to the right. The walking trolley 31 pushes the storage frame 43 in the working station to move through the push plate 33 until the storage frame 43 separates from the hanging plate 42 and stops on the walking trolley 31. Then, the walking trolley 31 sends the storage frame 43 loaded with stainless steel wires in the working station into the heat treatment furnace 1. After closing the furnace door 11, start the heat treatment furnace 1 to perform heat treatment on the stainless steel wires;

[0062] After the storage frame 43 in the working station is taken away, it becomes in an empty load state, and the overall center of gravity of the turntable 41 changes and rotates automatically until the empty hanging plate 42 rotates to the top, and the next hanging plate 42 loaded with the storage frame 43 rotates into the working station;

[0063] After the heat treatment is completed, the furnace door 11 is opened, and the walking trolley 31 moves leftward from the heat treatment furnace 1 into the preheating chamber 2. After the walking trolley 31 moves leftward, the driven plate 53 contacts the dial 55, and the dial 55 presses the driven plate 53, causing the rotating plate 52 to start rotating. After the rotating plate 52 rotates, it drives the top plate 51 to move upward, sending the storage frame 43 into the guide plate 44;

[0064] After the walking trolley 31 continues to move leftward, the driven plate 53 separates from the dial 55 and the cross plate 56 contacts the rotating plate 52. The cross plate 56 pushes the rotating plate 52 to rotate back. After the rotating plate 52 rotates back, it stops on the walking trolley 31. Then, the walking trolley 31 can pass under the storage frame 43 in the working station until the walking trolley 31 moves leftward to the initial position. In this way, after the heat treatment is completed, during the movement of the walking trolley 31, the functions of automatic rotation and rotation back of the rotating plate 52 are realized.

[0065] During the heat treatment process of this equipment, the heat dissipated by the stainless steel wire that is air-cooled in the preheating chamber 2 is used to preheat the remaining stainless steel wire to be processed. The preheating treatment not only helps to improve the quality of the wire, reduce the heating time required for subsequent heat treatment, and improve production efficiency, but also realizes the function of reusing the heat in the heat-treated wire. The walking trolley 31 automatically takes away the storage frame 43 in the working station, and the change in the center of gravity of the turntable 41 drives the turntable 41 to rotate, causing another set of storage frames 43 to automatically move into the working station. With the movement of the walking trolley 31 and in cooperation with the top pushing part 5, the heat-treated storage frame 43 is automatically placed on the turntable 41, so that continuous cyclic use can be realized, with a high degree of automation and convenient operation.

[0066] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stainless steel wire heat treatment device, comprising a heat treatment furnace (1), wherein a heating unit is provided inside the heat treatment furnace, and a furnace door (11) is provided at the outlet of the heat treatment furnace (1), characterized in that: Also includes: A preheating chamber (2) is provided at the outlet of the heat treatment furnace (1), wherein a plurality of groups of stainless steel wires are placed inside the preheating chamber (2); A walking mechanism (3) for pushing the stainless steel wire in and out between the preheating chamber (2) and the heat treatment furnace (1), the walking mechanism (3) comprising a walking trolley (31); A replacement part (4) is provided inside the preheating chamber (2), and the replacement part (4) comprises: Rotating a rotating disk (41) disposed in the preheating chamber (2): A plurality of hanging plates (42) hung on the rotating disk (41), wherein the plurality of hanging plates (42) are evenly distributed in a longitudinal ring shape, and the top ends of the hanging plates (42) are rotatably connected to the rotating disk (41); a storage frame (43) provided in the hanging plate (42), the storage frame (43) being used to place the stainless steel wire; The walking mechanism (3) further comprises: A slide rail (32) for guiding the traveling trolley (31); A push plate (33) is provided at the end of the walking trolley (31) for pushing the storage frame (43); the push plate (33) is a one-way rotating structure; a notch corresponding to the push plate (33) is provided at the bottom of the hanging plate (42); and the push plate (33) is located outside the rotating disk (41).

2. A stainless steel wire heat treatment equipment according to claim 1, characterized in that: It also includes a pushing portion (5) for pushing the storage frame (43) located on the walking trolley (31) upwards, and the pushing portion (5) includes a top plate (51) movably arranged on the top of the walking trolley (31).

3. A stainless steel wire heat treatment equipment according to claim 2, characterized in that: The replacement part (4) further comprises a material guide plate (44) arranged inside the preheating chamber (2), the material guide plate (44) being used to guide the storage frame (43) on the top plate (51) into the hanging plate (42), the material guide plate (44) being inclined, and a through groove corresponding to the top plate (51) being provided at the bottom end of the material guide plate (44), the width of the through groove being smaller than the width of the storage frame (43).

4. A stainless steel wire heat treatment equipment according to claim 3, characterized in that: The pushing portion (5) further comprises a plurality of sets of mutually parallel rotating plates (52), and two ends of the rotating plates (52) are rotatably connected to the walking trolley (31) and the top plate (51) respectively.

5. The stainless steel wire heat treatment equipment according to claim 4, characterized in that: The rotating plate (52) comprises: Rotating an outer plate (521) provided on the top of the traveling trolley (31); Rotating the inner plate (522) disposed at the bottom end of the top plate (51), so that the inner plate (522) is movably inserted into the interior of the outer plate (521); A card slot (523) provided on the inner plate (522); A clamping block (524) slidably disposed at the bottom end of the outer plate (521); A spring (525) is provided on the outer plate (521) and is used to push the clamping block (524) to be inserted into the clamping slot (523).

6. The stainless steel wire heat treatment equipment according to claim 5, characterized in that: After the top plate (51) moves downward and stops on the walking trolley (31), the rotating plate (52) is inclined, and the inner plate (522) is lower than the outer plate (521).

7. A stainless steel wire heat treatment equipment according to claim 6, characterized in that: The pushing portion (5) further comprises: A driven plate (53) fixedly connected to the bottom of the outer plate (521); A support platform (54) disposed on the slide rail (32); Rotating a shift plate (55) disposed on the support platform (54), wherein the shift plate (55) is a one-way rotating structure, and after the traveling trolley (31) moves from the heat treatment furnace (1) into the preheating chamber (2), the shift plate (55) contacts the driven plate (53) and pushes the rotating plate (52) to rotate; A transverse plate (56) fixedly connected to the support platform (54), the transverse plate (56) being used to push the rotating plate (52) to rotate.

8. The stainless steel wire heat treatment equipment according to claim 7, characterized in that: The pushing portion (5) further comprises: A protruding rod (57) fixedly connected to the clamping block (524); A pressing plate (58) fixedly connected to the bottom of the top plate (51), wherein the bottom of the pressing plate (58) is provided with a slope for pushing the protruding rod (57) to move; When the rotating plate (52) rotates and drives the top plate (51) to move upward, the pressing plate (58) contacts the protruding rod (57) and pushes the clamping block (524) to separate from the clamping slot (523).

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