Bidirectional high-straightness circular knitting needle heat treatment equipment

Abstract

The invention discloses bidirectional high-straightness circular knitting needle heat treatment equipment, and relates to the technical field of heat treatment, the bidirectional high-straightness circular knitting needle heat treatment equipment comprises a rack, a heating box and a cooling box are sequentially arranged at the upper end part of the rack along the length direction, the rack is further provided with a conveyor belt, the conveyor belt sequentially penetrates through the heating box and the cooling box, and a heating piece for heating a circular knitting needle is arranged in the heating box; a plurality of supporting blocks are arranged on the conveying belt, the conveying belt drives the supporting blocks to move, a plurality of clamping pieces are arranged at the upper ends of the supporting blocks in the conveying direction of the conveying belt, the clamping pieces clamp the circular machine needles, a clamping assembly is arranged in the heating box, and when the heating pieces heat the lower portions of the circular machine needles, the clamping assembly clamps the upper ends of the circular machine needles. A plurality of control pieces are arranged at the upper end of the supporting block and control opening and closing of the clamping pieces, a downward moving piece is arranged at the lower end of the supporting block, and when the heating piece heats the lower end of the circular knitting machine needle, the heating piece makes contact with the control pieces and drives the supporting block to move downwards. The heating device has the effect of improving the heating efficiency of the circular machine needle.

Description

Technical Field

[0001] This application relates to the field of heat treatment technology, and in particular to a two-way high-flatness round needle heat treatment device. Background Technology

[0002] Currently, heat treatment, as a core process for optimizing the performance of metallic materials, can significantly improve the internal microstructure and surface properties of workpieces without altering their shape and overall chemical composition by precisely controlling the heating, holding, and cooling processes. In the field of circular needle manufacturing, the application of this process has a decisive impact on product service life and machining accuracy.

[0003] Related technology can be found in Chinese patent application CN119194005A, which discloses a metal knitting needle quenching equipment and quenching process, relating to the field of quenching equipment. The equipment includes a frame with a heating box and a cooling box at the upper end. The heating box contains several heating elements. A conveyor belt along the frame drives the knitting needles sequentially through the heating and cooling boxes. It also includes several carrier boxes. The conveyor belt moves the carrier boxes during operation. Several driving blocks are located at the upper end of each carrier box. Two coaxial disc blocks are rotatably connected to the upper end of each driving block. The carrier box has clamping components for driving the two disc blocks closer or further apart. Clamping plates are fixed to the outer circumference of each disc block. The carrier box also has a rotating component for driving the disc blocks to rotate. The heating elements are located above the conveyor belt and divided into two groups. All heating elements in the same group are in the same straight line, and the gap between the two groups of heating elements forms a heating channel. This application improves the heating uniformity of the knitting needles during quenching and enhances the quenching quality of the knitting needles.

[0004] Regarding the aforementioned technologies, during the heating process of the knitting needle, the rotating component drives the disc block to rotate, causing the disc block to drive the knitting needle to rotate from a horizontal state to a vertical state through the clamping plate. During the heating process, because the lower end of the knitting needle is in a clamped state, it is difficult to complete the sequential heat treatment of the needle tip and needle tail in one workflow. The operator needs to perform subsequent heat treatment on the lower end of the knitting needle, resulting in low heat treatment efficiency. Summary of the Invention

[0005] In order to improve the heating efficiency of circular knitting needles, this application provides a two-way high-straightness circular knitting needle heat treatment device.

[0006] This application provides a two-way high-flatness round needle heat treatment equipment, which adopts the following technical solution: A bidirectional high-straightness circular needle heat treatment device includes a frame. A heating chamber and a cooling chamber are sequentially arranged along the length of the upper end of the frame. The frame also includes a conveyor belt that passes through the heating chamber and the cooling chamber. The heating chamber contains a heating element for heating the circular needle. Several support blocks are arranged on the conveyor belt, which drives the support blocks to move. Several clamping elements are arranged on the upper end of the support blocks along the conveyor belt's transport direction, clamping the circular needle. A clamping assembly is located inside the heating chamber. When the heating element heats the lower part of the circular needle, the clamping assembly clamps the upper end of the needle. Several control elements are arranged on the upper end of the support blocks, each corresponding to a clamping element. The control elements control the opening and closing of the clamping elements. A downward-moving element is located on the lower end of the support block. When the heating element heats the lower end of the circular needle, the heating element contacts the control elements, causing the support block to move downward.

[0007] By adopting the above technical solution, the frame supports the heating box, cooling box, and conveyor belt. During the heating process of the circular needle, the control unit controls the opening and closing of the clamping components. Multiple clamping components on the support block clamp and fix the circular needle. The conveyor belt transports the support block into the box. At this time, the upper end of the circular needle is directly opposite the clamping assembly. During the heating process of the circular needle, the clamping assembly clamps the upper end of the circular needle. When the heating element contacts the control unit, the control unit releases the positioning of the circular needle, and the heating element and the lowering component cooperate to move the support block downward. This allows the heating element to heat the lower end of the circular knitting needle. After heating, the heating element moves upward, and the lower moving element drives the support block to move upward. When the heating element control element separates, the control key and the clamping element cooperate to clamp the lower end of the circular knitting needle. When the heating element resets, the heating element and the clamping element cooperate to release the positioning effect on the upper end of the circular knitting needle. The conveyor belt and the support block cooperate to transport the circular knitting needle into the cooling box for cooling. This equipment can heat the circular knitting needle from top to bottom, improving the heating efficiency of the circular knitting needle.

[0008] Optionally, the heating element includes a lifting component, a moving rod, a support plate, and several heaters. The heating box has a moving opening on one side along the width of the conveyor belt. The moving rod is located inside the moving opening and is slidably connected to the heating box vertically. The lifting component is located outside the heating box and is used to drive the moving rod to move up and down vertically. The support plate is set along the conveyor belt conveying direction and is fixedly connected to the end of the moving rod away from the lifting component. Several heaters are fixedly connected to the side of the support plate away from the moving rod and are evenly arranged along the length of the support plate.

[0009] By adopting the above technical solution, during the heating process, the lifting component drives the moving rod to slide vertically within the moving opening. The moving rod and the support plate work together to move multiple heaters, heating the circular needle from top to bottom, thus improving the convenience of heating the circular needle.

[0010] Optionally, baffles are fixed at both the upper and lower ends of the moving rod. The baffles are located inside the moving opening, with the end of the baffle away from the moving rod located inside the heating box. The baffles are slidably connected to the heating box vertically, and sealing plates are hinged to both sides of the lower end of the heating box along the conveyor belt conveying direction.

[0011] By adopting the above technical solution, during the movement of the moving rod, two baffles work together to block the moving opening, and two sealing plates work together to block both sides of the heating box, which helps to reduce the probability of heat loss inside the heating box and improves heating efficiency.

[0012] Optionally, the upper end of the support block is provided with several storage slots along the conveyor belt conveying direction. The clamping member corresponds to each storage slot. The clamping member includes two guide plates, two clamping plates and several first springs. The two clamping plates are located in the storage slots and are slidably connected to the support block along the conveyor belt conveying direction. The several first springs are all located in the storage slots and are respectively located on the side of the two clamping plates that are far apart. The first springs drive the two clamping plates to move closer to each other. The guide plates correspond to each clamping plates. The guide plates are fixedly connected to the upper end of the clamping plates. The guide plates are inclined from bottom to top along the direction of the clamping plates pointing to the first springs.

[0013] By adopting the above technical solution, during the installation of the circular needle, the two guide plates guide the circular needle. When the lower end of the circular needle contacts the two guide plates, the two guide plates drive the two clamping plates away from each other and compress the first spring. When the circular needle is installed, the multiple first springs cooperate to make the two clamping plates tend to move closer to each other, thereby clamping the circular needle and improving the convenience of clamping the circular needle.

[0014] Optionally, the control components include a lower pressure block, two connecting rods, and two guide rods. The two connecting rods are located on the upper end of the support block near the heater. The connecting rods are slidably connected to the support block along the conveyor belt conveying direction. Each connecting rod corresponds to a clamping plate. The end of the connecting rod near the clamping plate is fixedly connected to the clamping plate. Each guide rod corresponds to a connecting rod. The two guide rods are located between the two connecting rods. The lower end of the guide rod is vertically hinged to the upper end of the connecting rod. The guide rod is inclined from bottom to top along the direction from the first spring to the clamping plate. The lower pressure block is located between the two guide rods. The upper ends of both guide rods are vertically hinged to the lower pressure block. The upper end of the support block has several positioning slots that communicate with the storage slot. The positioning slots are located below the storage slot.

[0015] By adopting the above technical solution, when installing the circular knitting needle, pressing down the pressure block causes the two connecting rods to move away from each other in conjunction with the two guide rods, thereby causing the two clamping plates to move away from each other. The operator inserts the circular knitting needle into the positioning groove, releases the pressure block, and thus the two clamping plates clamp the circular knitting needle, so that all the circular knitting needles are in the same horizontal position, and the circular knitting needles are heated to the same degree. This helps to reduce the friction between the circular knitting needle and the guide plate and improves the finished product quality of the circular knitting needle.

[0016] Optionally, the clamping assembly includes a movable component, a movable plate, a reset plate, several clamping plates, several second springs, several guide push rods, and several push rods. Each push rod corresponds to a heater and is vertically fixed to the upper end of the heater. The reset plate is located inside the heating chamber and is positioned along the conveyor belt's transport direction. The reset plate is vertically slidably connected to the heating chamber. The push rods are located directly below the reset plate. The movable plate is located below the reset plate and is vertically slidably connected to the heating chamber. The movable component is located on the side of the heating chamber closest to the cooling chamber and is used to drive the movable plate to move vertically up and down. The clamping plates are located at the lower end of the movable plate and are transported along the conveyor belt. The direction is slidably connected to the moving plate. Several clamping plates are grouped in pairs, and each group of clamping plates corresponds to a positioning groove. Several second springs are located between the reset plate and the moving plate. In the natural state, the several second springs work together to drive the reset plate closer to the moving plate. The upper end of the clamping plate passes through the moving plate and is located between the moving plate and the reset plate. Guide push rods are grouped in pairs, and each group of guide push rods corresponds to a positioning groove. The guide push rods correspond to the clamping plates. The lower end of the guide push rod is vertically hinged to the clamping plate, and the upper end of the guide push rod is vertically hinged to the reset plate. The guide push rods are inclined from bottom to top along the clamping plate in the direction that the two clamping plates are opposite to each other.

[0017] By adopting the above technical solution, in the initial state, the push rod and the reset plate cooperate to keep the second spring in a stretched state. When it is necessary to clamp the circular needle, the moving part drives the moving plate to descend, so that the circular needle is located between the two clamping plates. During the downward movement of the heater, the heater drives the push rod to move downward. At this time, the moving plate and the second spring cooperate to drive the reset plate to move downward. The reset plate cooperates with the guide push rod to make the two clamping plates move closer to each other. When the push rod and the reset plate are completely separated, the second spring is still in a stretched state, so that the reset plate has a downward tendency to move downward, so that the two clamping plates are tightly attached to the circular needle, which improves the convenience of clamping and fixing the upper end of the circular needle.

[0018] Optionally, the lowering component includes several spring dampers, a storage basket, and several pressure rods. Each pressure rod corresponds to a heater and is fixedly connected to the lower end of the heater vertically. The pressure rod is located directly above the lower pressure block. The storage basket is located below the support block. The lower end of the support block is located inside the storage basket and is slidably connected to the storage basket vertically. Several spring dampers are located inside the storage basket and below the support block. The two ends of the spring dampers are fixedly connected to the support block and the storage basket, respectively.

[0019] By adopting the above technical solution, when the pressure rod contacts the lower pressure block, the pressure rod drives the lower pressure block to move downward. The lower pressure block and the guide rod cooperate to move the two connecting rods away from each other, thereby moving the two clamping plates away from each other, releasing the clamping of the lower end of the circular needle. The heater continues to move downward, and the pressure rod and the lower pressure block cooperate to drive the support block to move downward. The storage basket guides the movement of the support block. During the downward movement of the support block, the spring damper is squeezed, so that the lower end of the circular needle is exposed, allowing the heater to heat the lower end of the circular needle. When the heating is completed, the heater and the pressure rod move upward. At this time, the spring damper drives the support block to reset, so that the lower end of the circular needle is located in the storage groove. When the pressure rod separates from the lower pressure block, multiple first springs cooperate to bring the two clamping plates closer to each other, thereby fixing the lower end of the circular needle, improving the convenience of heating the lower end of the circular needle.

[0020] Optionally, a number of fixing blocks are fixed on the surface of the conveyor belt, and the fixing blocks are evenly arranged along the conveying direction of the conveyor belt. The lower end of the storage basket is provided with a fixing groove that matches the fixing blocks.

[0021] By adopting the above technical solution, the fixed block and fixed groove cooperate to limit the storage basket during the conveying process of the circular needle, thereby improving the stability of the circular needle conveying.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. During the heating process of the circular needle, the control unit controls the opening and closing of the clamping components. Multiple clamping components on the support block clamp and fix the circular needle. The conveyor belt transports the support block into the box. At this time, the upper end of the circular needle is directly opposite the clamping components. During the heating process of the circular needle, the clamping components clamp the upper end of the circular needle. When the heating element contacts the control unit, the control unit releases the positioning of the circular needle. The heating element and the lowering component cooperate to move the support block down, thereby heating the lower end of the circular needle. After heating is completed, the heating element moves up. At this time, the lowering component drives the support block up. When the heating element and control unit separate, the control key cooperates with the clamping components to clamp the lower end of the circular needle. When the heating element resets, the heating element and the clamping components cooperate to release the positioning effect on the upper end of the circular needle. The conveyor belt and the support block cooperate to transport the circular needle into the cooling box for cooling. This equipment can heat the circular needle from top to bottom sequentially, improving the heating efficiency of the circular needle. 2. In the initial state, the push rod and the reset plate cooperate to keep the second spring in a stretched state. When it is necessary to clamp the circular needle, the moving part drives the moving plate to descend, so that the circular needle is located between the two clamping plates. During the downward movement of the heater, the heater drives the push rod to move downward. At this time, the moving plate and the second spring cooperate to drive the reset plate to move downward. The reset plate cooperates with the guide push rod to make the two clamping plates move closer to each other. When the push rod and the reset plate are completely separated, the second spring is still in a stretched state, so that the reset plate has a downward tendency to move downward, so that the two clamping plates are tightly attached to the circular needle, which improves the convenience of clamping and fixing the upper end of the circular needle. 3. When the pressure rod contacts the lower pressure block, the pressure rod drives the lower pressure block to move downwards. The lower pressure block and the guide rod work together to move the two connecting rods away from each other, thereby moving the two clamping plates away from each other and releasing the clamping of the lower end of the circular needle. The heater continues to move downwards, and the pressure rod and the lower pressure block work together to move the support block downwards. The storage basket guides the movement of the support block. During the downward movement of the support block, it squeezes the spring damper, exposing the lower end of the circular needle so that the heater heats the lower end of the circular needle. When the heating is complete, the heater and the pressure rod move upwards. At this time, the spring damper drives the support block to reset, so that the lower end of the circular needle is located in the storage groove. When the pressure rod separates from the lower pressure block, multiple first springs work together to bring the two clamping plates closer together, thereby fixing the lower end of the circular needle and improving the convenience of heating the lower end of the circular needle. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a two-way high-straightness round needle heat treatment equipment.

[0024] Figure 2 This is a schematic diagram of the internal structure of the heating chamber.

[0025] Figure 3 This is a schematic diagram of the clamping component structure.

[0026] Figure 4 This is a schematic diagram of the heating element structure.

[0027] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Heating box; 111. Sealing plate; 12. Cooling box; 13. Conveyor belt; 14. Support block; 2. Heating element; 21. Lifting element; 22. Moving rod; 23. Support plate; 24. Heater; 25. Moving port; 26. Baffle; 3. Clamping element; 31. Storage slot; 32. Guide plate; 33. Clamping plate; 34. First spring; 35. Positioning slot; 4. Control element; 41. Lowering block; 42. Connecting rod; 43. Guide rod; 5. Clamping assembly; 51. Moving element; 52. Moving plate; 53. Reset plate; 54. Clamping plate; 55. Second spring; 56. Guide push rod; 57. Top rod; 6. Lowering element; 61. Spring damper; 62. Storage basket; 63. Pressure rod; 64. Fixing block; 65. Fixing slot. Detailed Implementation

[0028] The present application will be further described in detail below with reference to all the accompanying drawings.

[0029] This application discloses a two-way high-straightness round needle heat treatment equipment. Example

[0030] Reference Figure 1 A two-way high-straightness round needle heat treatment equipment includes a frame 1. A heating box 11 and a cooling box 12 are arranged sequentially along the length of the upper end of the frame 1. The frame 1 is also provided with a conveyor belt 13 for conveying the round needle. The round needle is heated in the heating box 11 and cooled in the cooling box 12 after heating.

[0031] Reference Figure 2 and Figure 3 The conveyor belt 13 is provided with multiple support blocks 14. The conveyor belt 13 drives the support blocks 14 to move. The upper end of the support block 14 is provided with multiple clamping members 3 along the conveying direction of the conveyor belt 13. The clamping members 3 clamp the circular needle. The upper end of the support block 14 is provided with multiple storage slots 31 along the conveying direction of the conveyor belt 13. The clamping members 3 correspond one-to-one with the storage slots 31. The clamping members 3 include two guide plates 32, two clamping plates 33 and multiple first springs 34. The two clamping plates 33 are located in the storage slots 31 and are slidably connected to the support block 14 along the conveying direction of the conveyor belt 13. The two clamping plates 33 are close to each other to clamp the lower end of the circular needle.

[0032] Reference Figure 2 and Figure 3 Multiple first springs 34 are located in the receiving groove 31 and are respectively located on the side of the two clamping plates 33 that are far apart. The first springs 34 drive the two clamping plates 33 to move closer to each other. The guide plate 32 corresponds to the clamping plate 33 one by one. The guide plate 32 is fixedly connected to the upper end of the clamping plate 33. The guide plate 32 is inclined from bottom to top along the direction of the clamping plate 33 pointing to the first spring 34. During the installation of the circular needle, the two guide plates 32 guide the circular needle. When the lower end of the circular needle contacts the two guide plates 32, the two guide plates 32 drive the two clamping plates 33 to move away from each other and squeeze the first springs 34. When the circular needle is installed, the multiple first springs 34 cooperate to make the two clamping plates 33 tend to move closer to each other, thereby clamping the circular needle.

[0033] Reference Figure 3The upper end of the support block 14 is provided with multiple control components 4, each corresponding to a clamping component 3. The control components 4 control the opening and closing of the clamping components 3. Each control component 4 includes a lower pressing block 41, two connecting rods 42, and two guide rods 43. Both connecting rods 42 are located on one side of the upper end of the support block 14 along the width direction. The connecting rods 42 are slidably connected to the support block 14 along the conveying direction of the conveyor belt 13. Each connecting rod 42 corresponds to a clamping plate 33. The end of the connecting rod 42 near the clamping plate 33 is fixedly connected to the clamping plate 33. The movement of the connecting rod 42 drives the clamping plate 33 to move.

[0034] Reference Figure 3 The guide rods 43 and connecting rods 42 correspond one-to-one. Two guide rods 43 are located between two connecting rods 42. The lower end of the guide rod 43 is vertically hinged to the upper end of the connecting rod 42. The guide rods 43 are inclined from bottom to top along the direction from the first spring 34 towards the clamping plate 33. The lower pressure block 41 is located between the two guide rods 43. The upper ends of both guide rods 43 are vertically hinged to the lower pressure block 41. The upper end of the support block 14 has multiple positioning grooves 35 that communicate with the storage groove 31. Position 35 is located below the storage slot 31. When installing the circular needle, press down the pressure block 41. The pressure block 41 cooperates with the two guide rods 43 to move the two connecting rods 42 away from each other, thereby moving the two clamping plates 33 away from each other. The operator inserts the circular needle into the positioning slot 35 and releases the pressure block 41, so that the two clamping plates 33 clamp the circular needle, making all the circular needles in the same horizontal position, so that the circular needles are heated to the same degree, which helps to reduce the friction between the circular needle and the guide plate 32.

[0035] Reference Figure 2 and Figure 4 The heating chamber 11 is equipped with a heating element 2 for heating the circular needle. The heating element 2 includes a lifting element 21, a moving rod 22, a support plate 23 and multiple heaters 24. The heating chamber 11 has a moving opening 25 on the side near the lower pressure block 41. The moving rod 22 is located in the moving opening 25 and is slidably connected to the heating chamber 11 vertically. The lifting element 21 is located outside the heating chamber 11. The lifting element 21 adopts a lead screw structure. The lifting element 21 drives the moving rod 22 to slide in the moving opening 25.

[0036] Reference Figure 4 The support plate 23 is set along the conveying direction of the conveyor belt 13 and is fixedly connected to the side of the moving rod 22 away from the lifting component 21. Multiple heaters 24 are fixedly connected to the side of the support plate 23 away from the moving rod 22. The multiple heaters 24 are evenly arranged along the length of the support plate 23. During the heating process, the lifting component 21 drives the moving rod 22 to slide vertically in the moving port 25. The moving rod 22 and the support plate 23 cooperate to drive the multiple heaters 24 to move, and heat the circular needle from top to bottom.

[0037] Reference Figure 4 Both the upper and lower ends of the moving rod 22 are fixed with baffles 26. The baffles 26 are located inside the moving opening 25. The end of the baffle 26 away from the moving rod 22 is located inside the heating box 11. The baffles 26 are slidably connected to the heating box 11 vertically. Both sides of the lower end of the heating box 11 along the conveying direction of the conveyor belt 13 are hinged with sealing plates 111. During the movement of the moving rod 22, the two baffles 26 cooperate to block the moving opening 25, and the two sealing plates 111 cooperate to block both sides of the heating box 11, which helps to reduce the probability of heat loss inside the heating box 11.

[0038] Reference Figure 2 and Figure 4 The heating chamber 11 is equipped with a clamping assembly 5. When the heating element 2 heats the lower part of the circular needle, the clamping assembly 5 clamps the upper end of the circular needle. The clamping assembly 5 includes a moving element 51, a moving plate 52, a reset plate 53, multiple clamping plates 54, multiple second springs 55, multiple guide push rods 56, and multiple push rods 57. The reset plate 53 is located inside the heating chamber 11 and is arranged along the conveying direction of the conveyor belt 13. The reset plate 53 is slidably connected to the heating chamber 11 in the vertical direction. The push rods 57 correspond one-to-one with the heaters 24. The push rods 57 are fixedly connected to the upper end of the heaters 24 in the vertical direction. The push rods 57 are located directly below the reset plate 53 and abut against the reset plate 53.

[0039] Reference Figure 4 The movable plate 52 is located below the reset plate 53 and is slidably connected to the heating box 11 vertically. The movable component 51 is located on the side of the heating box 11 near the cooling box 12. The movable component 51 adopts a lead screw structure and drives the movable plate 52 to move up and down vertically. The clamping plate 54 is located at the lower end of the movable plate 52 and is slidably connected to the movable plate 52 along the conveyor belt 13. Multiple clamping plates 54 are arranged in pairs, and each pair of clamping plates 54 corresponds one-to-one with the positioning groove 35. The two clamping plates 54 are close to each other to clamp the upper end of the circular needle.

[0040] Reference Figure 4Multiple second springs 55 are located between the reset plate 53 and the moving plate 52. In their natural state, the multiple second springs 55 work together to move the reset plate 53 closer to the moving plate 52. The upper end of the clamping plate 54 passes through the moving plate 52 and is located between the moving plate 52 and the reset plate 53. The guide push rods 56 are in pairs, with each pair of guide push rods 56 corresponding to a positioning groove 35 and a clamping plate 54. The lower end of the guide push rod 56 is vertically hinged to the clamping plate 54, and the upper end of the guide push rod 56 is vertically hinged to the reset plate 53. The guide push rods 56 are inclined from bottom to top along the clamping plate 54 in a direction opposite to the two clamping plates 54. Initially... In this state, the push rod 57 cooperates with the reset plate 53 to keep the second spring 55 in a stretched state. When it is necessary to clamp the circular needle, the moving part 51 drives the moving plate 52 to descend, so that the circular needle is located between the two clamping plates 54. During the downward movement of the heater 24, the heater 24 drives the push rod 57 to move downward. At this time, the moving plate 52 and the second spring 55 cooperate to drive the reset plate 53 to move downward. The reset plate 53 cooperates with the guide push rod 56 to make the two clamping plates 54 approach each other. When the push rod 57 and the reset plate 53 are completely separated, the second spring 55 is still in a stretched state, so that the reset plate 53 has a downward tendency to move downward, so that the two clamping plates 54 are tightly attached to the circular needle.

[0041] Reference Figure 2 and Figure 4 The lower end of the support block 14 is provided with a downward moving part 6. When the heating element 2 heats the lower end of the circular needle, the heating element 2 contacts the control element 4 and drives the support block 14 to move downward. The downward moving part 6 includes multiple spring dampers 61, a storage basket 62 and multiple pressure rods 63. The pressure rods 63 correspond one-to-one with the heater 24. The pressure block is fixedly connected to the lower end of the heater 24 vertically. The pressure rods 63 are located directly above the lower pressure block 41. When the pressure rods 63 contact the lower pressure block 41, the pressure rods 63 drive the lower pressure block 41 to move downward. The lower pressure block 41 and the guide rod 43 cooperate to make the two connecting rods 42 move away from each other, thereby making the two clamping plates 33 move away from each other and releasing the clamping of the lower end of the circular needle.

[0042] Reference Figure 2The storage basket 62 is located directly below the support block 14. The lower end of the support block 14 is located inside the storage basket 62 and is slidably connected to the storage basket 62 in the vertical direction. The storage basket 62 guides the movement of the support block 14. Multiple spring dampers 61 are located inside the storage basket 62 and below the support block 14. The two ends of the spring dampers 61 are fixedly connected to the support block 14 and the storage basket 62, respectively. The heater 24 continues to move downward. The pressure rod 63 cooperates with the lower pressure block 41 to drive the support block 14 to move downward. The storage basket 62 guides the movement of the support block 14. During the downward movement of the support block 14, the spring dampers 61 are squeezed, so that the lower end of the circular needle is exposed, and the heater 24 heats the lower end of the circular needle. When the heating is completed, the heater 24 and the pressure rod 63 move upward. At this time, the spring dampers 61 drive the support block 14 to reset, so that the lower end of the circular needle is located in the storage groove 31. When the pressure rod 63 separates from the lower pressure block 41, multiple first springs 34 cooperate to bring the two clamping plates 33 closer to each other, thereby fixing the lower end of the circular needle.

[0043] Reference Figure 1 and Figure 2 Multiple fixing blocks 64 are fixed on the surface of the conveyor belt 13. The fixing blocks 64 are evenly arranged along the conveying direction of the conveyor belt 13. The lower end of the storage basket 62 is provided with a fixing groove 65 that matches the fixing blocks 64. During the conveying process of the circular needle, the fixing blocks 64 and the fixing groove 65 cooperate to limit the storage basket 62, thereby improving the stability of the circular needle conveying.

[0044] The implementation principle of the bidirectional high-straightness round needle heat treatment equipment in this application embodiment is as follows: The conveyor belt 13 transports the clamped round needle to the heating box 11. At this time, the round needle is located below the clamping plate 54. The moving part 51 drives the moving plate 52 to descend, so that the round needle is located between the two clamping plates 54. The heater 24 heats the round needle. During the downward movement of the heater 24, the heater 24 drives the top rod 57 to move downward. At this time, the moving plate 52 and the second spring 55 cooperate to drive the reset plate 53 to move downward. The reset plate 53 and the guide push rod 56 cooperate to bring the two clamping plates 54 closer to each other. When the top rod 57 is completely separated from the reset plate 53, the second spring 55 still... When the device is in a stretched state, the two clamping plates 54 fit tightly against the circular needle. When the heater 24 heats the lower end of the circular needle, the pressure rod 63 contacts the lower pressure block 41 and pushes the lower pressure block 41 downward. The pressure rod 63 and the lower pressure block 41 work together to drive the support block 14 downward. The lower pressure block 41 and the guide rod 43 work together to move the two connecting rods 42 away from each other, thereby moving the two clamping plates 33 away from each other. During the downward movement of the support block 14, the spring damper 61 is squeezed, so that the lower end of the circular needle is exposed. The heater 24 heats the lower end of the circular needle. This device can heat the circular needle from top to bottom sequentially, improving the heating efficiency of the circular needle.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bidirectional high-straightness round needle heat treatment device, comprising a frame (1), wherein a heating chamber (11) and a cooling chamber (12) are sequentially arranged along the length direction at the upper end of the frame (1), and the frame (1) is further provided with a conveyor belt (13) that passes sequentially through the heating chamber (11) and the cooling chamber (12), wherein a heating element (2) for heating the round needle is provided inside the heating chamber (11), characterized in that: The conveyor belt (13) is provided with several support blocks (14). The conveyor belt (13) drives the support blocks (14) to move. The upper end of the support block (14) is provided with several clamping parts (3) along the conveying direction of the conveyor belt (13). The clamping parts (3) clamp the circular needle. The heating box (11) is provided with a clamping assembly (5). When the heating element (2) heats the lower part of the circular needle, the clamping assembly (5) clamps the upper end of the circular needle. The upper end of the support block (14) is provided with several control parts (4). The control parts (4) correspond one-to-one with the clamping parts (3). The control parts (4) control the opening and closing of the clamping parts (3). The lower end of the support block (14) is provided with a downward moving part (6). When the heating element (2) heats the lower end of the circular needle, the heating element (2) contacts the control part (4) and drives the support block (14) to move downward.

2. The bidirectional high-straightness round needle heat treatment equipment according to claim 1, characterized in that: The heating element (2) includes a lifting element (21), a moving rod (22), a support plate (23), and several heaters (24). The heating box (11) has a moving opening (25) on one side along the width direction of the conveyor belt (13). The moving rod (22) is located inside the moving opening (25) and is slidably connected to the heating box (11) in the vertical direction. The lifting element (21) is located outside the heating box (11) and is used to drive the moving rod (22) to move up and down in the vertical direction. The support plate (23) is set along the conveying direction of the conveyor belt (13) and is fixedly connected to the end of the moving rod (22) away from the lifting element (21). Several heaters (24) are all fixedly connected to the side of the support plate (23) away from the moving rod (22). Several heaters (24) are evenly arranged along the length direction of the support plate (23).

3. The bidirectional high-straightness round needle heat treatment equipment according to claim 2, characterized in that: Both the upper and lower ends of the moving rod (22) are fixed with baffles (26). The baffles (26) are located inside the moving opening (25). The end of the baffle (26) away from the moving rod (22) is located inside the heating box (11). The baffles (26) are slidably connected to the heating box (11) in the vertical direction. Both sides of the lower end of the heating box (11) along the conveying direction of the conveyor belt (13) are hinged with sealing plates (111).

4. The bidirectional high-straightness round needle heat treatment equipment according to claim 1, characterized in that: The upper end of the support block (14) is provided with several storage slots (31) along the conveying direction of the conveyor belt (13). The clamping member (3) corresponds to the storage slots (31) one by one. The clamping member (3) includes two guide plates (32), two clamping plates (33) and several first springs (34). The two clamping plates (33) are located in the storage slots (31) and are slidably connected to the support block (14) along the conveying direction of the conveyor belt (13). The several first springs (34) are all located in the storage slots (31) and are respectively located on the side away from the two clamping plates (33). The first springs (34) drive the two clamping plates (33) to move closer to each other. The guide plate (32) corresponds to the clamping plate (33) one by one. The guide plate (32) is fixedly connected to the upper end of the clamping plate (33). The guide plate (32) is inclined from bottom to top along the direction of the clamping plate (33) pointing to the first spring (34).

5. The bidirectional high-straightness round needle heat treatment equipment according to claim 4, characterized in that: The control component (4) includes a lower pressure block (41), two connecting rods (42), and two guide rods (43). Both connecting rods (42) are located on the upper end of the support block (14) near the heater (24). The connecting rods (42) are slidably connected to the support block (14) along the conveyor belt (13) conveying direction. Each connecting rod (42) corresponds to a clamping plate (33). The end of each connecting rod (42) near the clamping plate (33) is fixedly connected to the clamping plate (33). Each guide rod (43) corresponds to a connecting rod (42). 43) Located between two connecting rods (42), the lower end of the guide rod (43) is vertically hinged to the upper end of the connecting rod (42). The guide rod (43) is inclined from bottom to top along the direction of the first spring (34) pointing to the clamping plate (33). The lower pressure block (41) is located between the two guide rods (43). The upper ends of the two guide rods (43) are vertically hinged to the lower pressure block (41). The upper end of the support block (14) is provided with several positioning grooves (35) that communicate with the storage groove (31). The positioning grooves (35) are located below the storage groove (31).

6. The bidirectional high-straightness round needle heat treatment equipment according to claim 5, characterized in that: The clamping assembly (5) includes a movable component (51), a movable plate (52), a reset plate (53), several clamping plates (54), several second springs (55), several guide push rods (56), and several push rods (57). Each push rod (57) corresponds to a heater (24). The push rods (57) are fixedly connected vertically to the upper end of the heater (24). The reset plate (53) is located inside the heating box (11) and is arranged along the conveyor belt (13) in the conveying direction. The reset plate (53) is slidably connected to the heating box (11) vertically. The push rod (57) is located directly below the reset plate (53). The moving plate (52) is located below the reset plate (53) and is slidably connected to the heating box (11) vertically. The moving part (51) is located on the side of the heating box (11) near the cooling box (12). The moving part (51) is used to drive the moving plate (52) to move vertically up and down. The clamping plate (54) is located at the lower end of the moving plate (52) and moves along the conveyor belt. (13) The conveying direction is slidably connected to the moving plate (52). Several clamping plates (54) are arranged in pairs, and each pair of clamping plates (54) corresponds to a positioning groove (35). Several second springs (55) are located between the reset plate (53) and the moving plate (52). In the natural state, the several second springs (55) work together to drive the reset plate (53) to move closer to the moving plate (52). The upper end of the clamping plate (54) passes through the moving plate (52) and is located between the moving plate (52) and the reset plate (52). Between the plates (53), the guide push rods (56) are in pairs, each pair of guide push rods (56) corresponds to the positioning groove (35) one by one, the guide push rods (56) correspond to the clamping plates (54) one by one, the lower end of the guide push rod (56) is vertically hinged to the clamping plate (54), the upper end of the guide push rod (56) is vertically hinged to the reset plate (53), and the guide push rods (56) are inclined from bottom to top along the clamping plate (54) in the direction of the two clamping plates (54) being opposite to each other.

7. The bidirectional high-straightness round needle heat treatment equipment according to claim 5, characterized in that: The lowering component (6) includes several spring dampers (61), a storage basket (62), and several pressure rods (63). The pressure rods (63) correspond one-to-one with the heater (24). The pressure rods (63) are fixedly connected to the lower end of the heater (24) in the vertical direction. The pressure rods (63) are located directly above the lower pressure block (41). The storage basket (62) is located below the support block (14). The lower end of the support block (14) is located inside the storage basket (62) and is slidably connected to the storage basket (62) in the vertical direction. Several spring dampers (61) are located inside the storage basket (62) and below the support block (14). The two ends of the spring dampers (61) are fixedly connected to the support block (14) and the storage basket (62) respectively.

8. The bidirectional high-straightness round needle heat treatment equipment according to claim 7, characterized in that: The surface of the conveyor belt (13) is fixed with a number of fixing blocks (64), which are evenly arranged along the conveying direction of the conveyor belt (13). The lower end of the storage basket (62) is provided with a fixing groove (65) that matches the fixing blocks (64).

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