A heat treatment system for coiled spring steel strip

Abstract

The application discloses a kind of heat treatment systems for spring steel band, it is related to steel band heat treatment technical field, with the advantage that steel band is not needed to be manually passed through quenching device, so that quenching device is quenched from the head to steel band, its technical scheme main points are: including heat treatment box and the side plate of being arranged in the inner wall of heat treatment box one side, heat treatment box is equipped with the relatively distributed inlet and outlet, the side of heat treatment box inner wall and side plate is equipped with guide component, side plate is equipped with T-shaped mounting plate, and mounting plate is equipped with the feeding assembly that is cooperated with guide component, heat treatment box is equipped with heating assembly and cooling assembly that are cooperated with guide component, when one end of steel band passes through heating assembly, heating assembly heats steel band, when one end of steel band passes through cooling assembly, cooling assembly is cooled and quenched to heated steel band.

Description

Technical Field

[0001] This invention relates to the field of steel strip heat treatment technology, specifically a heat treatment system for coiled spring steel strips. Background Technology

[0002] In order to improve the hardness and toughness of steel strips during the processing and production process, they often need to be quenched by a quenching device.

[0003] However, existing quenching devices require the device to be opened during use, and then one end of the steel strip must be manually passed through the device. During this process, the device cannot operate due to safety considerations, which means that the end of the steel strip held manually cannot be quenched, making it inconvenient to use. Therefore, the applicant has developed a new technical solution in actual production to solve the above-mentioned technical problems. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a heat treatment system for coiled spring steel strips, which has the advantage of eliminating the need for manual passage of the steel strip through the quenching device, thereby allowing the quenching device to quench the steel strip from scratch.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This invention provides a heat treatment system for coiled steel strip, including a heat treatment chamber and a side plate disposed on one side of the inner wall of the heat treatment chamber. The heat treatment chamber is provided with a feed port and a discharge port that are distributed opposite to each other. A guide assembly is provided on the inner wall of the heat treatment chamber opposite to the side plate. A T-shaped mounting plate is provided on the side plate, and a feeding assembly that cooperates with the guide assembly is provided on the mounting plate. The feeding assembly is used to pass one end of the steel strip through the feed port and the guide assembly in sequence, and then convey it out from the discharge port.

[0007] The heat treatment box is equipped with a heating component and a cooling component that cooperate with the guiding component. During the process of the feeding component conveying one end of the steel strip through the guiding component from the outlet, the steel strip conveyed by the feeding component passes through the heating component and the cooling component in sequence. When one end of the steel strip passes through the heating component, the heating component heats the steel strip. When one end of the steel strip passes through the cooling component, the cooling component cools and quenches the heated steel strip.

[0008] When the steel strip is conveyed out of the outlet, the feeding assembly separates from the steel strip, and the guiding assembly is used to guide the subsequent steel strip through the heating assembly and the cooling assembly in sequence.

[0009] By adopting the above technical solution, during use, one end of the steel strip is installed on the feeding assembly. The feeding assembly passes the steel strip through the inlet and the guide assembly in sequence, and then conveys it out from the outlet. During the process of the steel strip passing through the guide assembly, the steel strip passes through the heating assembly and the cooling assembly in sequence. When the steel strip passes through the heating assembly, the steel strip is heated by the heating assembly. Then the heated steel strip passes through the cooling assembly, where it is cooled and quenched. After quenching, the steel strip is conveyed out from the outlet through the feeding assembly. Then the steel strip is removed from the feeding assembly. At this time, the feeding assembly and the steel strip are separated, and the feeding assembly stops working. Through the above process, it is not necessary to manually pass the steel strip through the heat treatment box.

[0010] After detaching one end of the steel strip from the feeding assembly, the other end can be installed on an external winding device for winding. During this process, the guiding assembly guides the subsequent steel strip through the heating assembly and cooling assembly in sequence, achieving the purpose of quenching the steel strip from the beginning. It is simple and convenient to use.

[0011] Preferably, the mounting plate includes a vertical plate and a horizontal plate horizontally disposed at the top of the vertical plate. The mounting plate is horizontally slidably connected to one side of the side plate along the length direction of the side plate by a sliding member. The sliding member is used to push the mounting plate to slide on the side plate, so that the end of the horizontal plate near the inlet or outlet moves out of the inlet or outlet. The feeding assembly includes a sprocket assembly rotatably connected to the side of the mounting plate away from the side plate, and the sprocket assembly is connected by a chain. The sprocket assembly makes the chain T-shaped. A clamping assembly is provided on the side of the chain away from the side plate. The clamping assembly is used to clamp one end of the steel strip. The heat treatment box is provided with a driving member for driving the sprocket assembly to rotate.

[0012] Preferably, the clamping assembly includes a pressure plate and a rotating shaft horizontally disposed on the side of the chain away from the side plate. A sleeve is rotatably connected to the rotating shaft. The sleeve is rectangular in shape. The pressure plate is horizontally located above the sleeve, and two opposing screws are vertically disposed at the top of the sleeve. The tops of the two screws pass through the pressure plate and are threadedly connected to nuts. The pressure plate is used to press one end of the steel strip onto the sleeve.

[0013] Preferably, the driving component includes a drive shaft rotatably connected to one side of the heat treatment chamber. The drive shaft is located above the side plate, and a drive sprocket is provided at one end of the drive shaft near the chain. The drive sprocket is located above the chain and meshes with the chain. The heat treatment chamber is provided with a drive motor for driving the drive shaft to rotate. When the sliding member pushes the mounting plate to slide on the side plate, the drive motor drives the drive sprocket to rotate through the drive shaft, so that the sprocket assembly remains stationary.

[0014] Preferably, the sprocket assembly includes two first sprockets rotatably connected to the side of the horizontal plate away from the side plate, and the two first sprockets are distributed opposite each other. The four corners of the side of the vertical plate away from the side plate are respectively rotatably connected to a second sprocket, a third sprocket, a fourth sprocket, and a fifth sprocket. The second sprocket, the third sprocket, the fourth sprocket, and the fifth sprocket are connected to the two first sprockets by a chain. When the end of the horizontal plate near the inlet or outlet moves out of the inlet or outlet, one of the first sprockets is located outside the heat treatment chamber.

[0015] Preferably, the guiding assembly includes a first guide shaft, a second guide shaft, and two third guide shafts rotatably connected inside the heat treatment chamber and on the side corresponding to the side plate. Both third guide shafts are close to the heating assembly and are distributed opposite to each other. The first and second guide shafts are both located in the cooling assembly. The second sprocket and the third sprocket are opposite to each other, and the fourth sprocket and the fifth sprocket are opposite to each other, with the fourth and fifth sprockets located below the second and third sprockets. The first and second guide shafts are both located above one side of the fourth and fifth sprockets. The fourth guide shaft is rotatably connected inside the heat treatment chamber on the side corresponding to the side plate and is close to the discharge port.

[0016] Preferably, the heating assembly includes a high-frequency induction heater disposed at the bottom of the heat treatment chamber, and the high-frequency induction heater is located below the third guide shaft. The high-frequency induction heater is provided with a U-shaped high-frequency induction coil, and the opening of the high-frequency induction coil faces the side plate. The high-frequency induction coil is located between the two third guide shafts.

[0017] Preferably, the cooling assembly includes a partition plate disposed at the bottom of the heat treatment chamber, and the partition plate divides the heat treatment chamber into a placement area and a cooling area for placing quenching liquid. The heating assembly is disposed in the placement area, and the first guide shaft, the second guide shaft, the fourth sprocket, the fifth sprocket, and the vertical plate are all located in the quenching liquid in the cooling area.

[0018] Preferably, the horizontal plate is provided with a support plate located between the two first sprockets, and the support plate is located in the chain, with the upper surface of the support plate in contact with the top end of the chain.

[0019] Preferably, a rotating cylinder is sleeved on the drive shaft, and the rotating cylinder is fixedly installed on the top of the side plate.

[0020] The beneficial effects of this invention are as follows: In use, one end of the steel strip is installed on the feeding assembly. The feeding assembly passes the steel strip through the inlet and the guide assembly in sequence, and then conveys it out from the outlet. During the process of the steel strip passing through the guide assembly, the steel strip passes through the heating assembly and the cooling assembly in sequence. When the steel strip passes through the heating assembly, the steel strip is heated by the heating assembly. Then the heated steel strip passes through the cooling assembly, and the steel strip is cooled and quenched by the cooling assembly. After quenching, the steel strip is conveyed out from the outlet through the feeding assembly. Then the steel strip is removed from the feeding assembly. At this time, the feeding assembly and the steel strip are separated, and the feeding assembly stops working. Through the above process, it is not necessary to manually pass the steel strip through the heat treatment box.

[0021] After detaching one end of the steel strip from the feeding assembly, the other end can be installed on an external winding device for winding. During this process, the guiding assembly guides the subsequent steel strip through the heating assembly and cooling assembly in sequence, achieving the purpose of quenching the steel strip from the beginning. It is simple and convenient to use. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0024] Figure 2 This is a structural schematic diagram illustrating the side panel in this embodiment;

[0025] Figure 3 This is a schematic diagram illustrating the structure of the chute in this embodiment;

[0026] Figure 4 This is a schematic diagram showing one end of the horizontal plate being removed from the feed inlet.

[0027] Figure 5 This is a schematic diagram illustrating the structure of the partition plate in this embodiment;

[0028] Figure 6 This is a schematic diagram showing one end of the horizontal plate being removed from the discharge port.

[0029] Figure 7 This is a schematic diagram illustrating the structure of the mounting plate in this embodiment;

[0030] Figure 8 for Figure 7 Enlarged structural diagram of section A in the middle.

[0031] Explanation of reference numerals in the attached figures:

[0032] In the diagram: 1. Heat treatment chamber; 11. Feed inlet; 12. Discharge outlet; 13. Rotary motor; 14. Drive shaft; 141. Drive sprocket; 15. Drive motor; 16. First guide shaft; 17. Second guide shaft; 18. Third guide shaft; 19. Fourth guide shaft; 2. Side plate; 20. Slide groove; 21. Slide plate; 22. Lead screw; 23. First sprocket; 24. Second sprocket; 25. Third sprocket; 26. Fourth sprocket; 27. Fifth sprocket; 28. Rotary drum; 3. Mounting plate; 31. Vertical plate; 32. Horizontal plate; 321. Support plate; 4. Chain; 41. Pressure plate; 42. Rotary shaft; 43. Sleeve; 44. Screw; 45. Nut; 5. High-frequency induction heater; 51. High-frequency induction coil; 6. Divider plate; 61. Placement area; 62. Cooling area. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] A heat treatment system for coiled spring steel strip, such as Figure 1 and Figure 2 The heat treatment chamber includes a heat treatment chamber 1 and a side plate 2 disposed on one side of the inner wall of the heat treatment chamber 1. The heat treatment chamber 1 is provided with a feed port 11 and a discharge port 12 that are distributed opposite to each other. A guide assembly is provided on the inner wall of the heat treatment chamber 1 opposite to the side plate 2. A T-shaped mounting plate 3 is provided on the side plate 2, and a feeding assembly that cooperates with the guide assembly is provided on the mounting plate 3. The feeding assembly is used to pass one end of the steel strip through the feed port 11 and the guide assembly in sequence, and then convey it out from the discharge port 12.

[0035] The heat treatment box 1 is equipped with a heating component and a cooling component that cooperate with the guiding component. During the process of the feeding component conveying one end of the steel strip through the guiding component and out of the discharge port 12, the one end of the steel strip conveyed by the feeding component passes through the heating component and the cooling component in sequence. When one end of the steel strip passes through the heating component, the heating component heats the steel strip. When one end of the steel strip passes through the cooling component, the cooling component cools and quenches the heated steel strip.

[0036] When the steel strip is conveyed out of the discharge port 12, the feeding assembly separates from the steel strip, and the guiding assembly is used to guide the subsequent steel strip through the heating assembly and the cooling assembly in sequence.

[0037] like Figure 1 and Figure 2 In use, one end of the steel strip is installed on the feeding assembly. The feeding assembly guides the steel strip through the inlet 11 and the guide assembly, and then it is conveyed out from the outlet 12. As the steel strip passes through the guide assembly, it passes through the heating assembly and the cooling assembly. When the steel strip passes through the heating assembly, it is heated. The heated steel strip then passes through the cooling assembly, where it is cooled and quenched. After quenching, the steel strip is conveyed out from the outlet 12 through the feeding assembly. Then, the steel strip is removed from the feeding assembly. At this point, the feeding assembly and the steel strip are separated, and the feeding assembly stops working. Through the above process, it is not necessary to manually pass the steel strip through the heat treatment chamber 1.

[0038] After detaching one end of the steel strip from the feeding assembly, the other end of the steel strip can be installed on an external winding device (not shown in the figure) for winding. During this process, the guiding assembly guides the subsequent steel strip through the heating assembly and cooling assembly in sequence, achieving the purpose of quenching the steel strip from the beginning. The feeding assembly will not affect the guiding assembly's guidance of the subsequent steel strip, making it simple and convenient to use.

[0039] like Figure 2 and Figure 3 and Figure 7 The mounting plate 3 includes a vertical plate 31 and a horizontal plate 32 horizontally disposed at the top of the vertical plate 31. The mounting plate 3 is horizontally slidably connected to one side of the side plate 2 along the length direction of the side plate 2 by a sliding member. The sliding member is used to push the mounting plate 3 to slide on the side plate 2, so that the end of the horizontal plate 32 near the feed port 11 or the discharge port 12 moves out of the feed port 11 or the discharge port 12. The feeding assembly includes a sprocket assembly rotatably connected to the side of the mounting plate 3 away from the side plate 2, and the sprocket assembly is connected by a chain 4. The sprocket assembly makes the chain 4 T-shaped. A clamping assembly is provided on the side of the chain 4 away from the side plate 2. The clamping assembly is used to clamp one end of the steel strip. The heat treatment box 1 is provided with a driving member for driving the sprocket assembly to rotate.

[0040] The sliding component includes a slide groove 20 disposed on one side of the side plate 2 along the length direction of the side plate 2, and a slide plate 21 is horizontally slidably connected in the slide groove 20. The upright plate 31 is disposed on the slide plate 21. A lead screw 22 is rotatably connected between the opposite two side walls of the slide groove 20, and one end of the lead screw 22 passes through the slide plate 21 and is threadedly connected to the slide plate 21. The heat treatment box 1 is provided with a rotary motor 13 for driving the lead screw 22 to rotate. The rotary motor 13 can be replaced with a servo motor.

[0041] The drive unit drives the sprocket assembly to rotate, causing the clamping assembly on the chain 4 to move to the end of the horizontal plate 32 near the feed inlet 11. Then, the sliding member pushes the mounting plate 3 towards the feed inlet 11 until the clamping assembly and one end of the horizontal plate 32 in the mounting plate 3 are removed from the feed inlet 11 from the heat treatment chamber 1 (e.g., Figure 4 At this point, the clamping assembly passes the heating assembly, and then one end of the steel strip is installed on the clamping assembly. After that, the sliding component pushes the mounting plate 3 away from the feed port 11, pulling one end of the steel strip from the feed port 11 into the heat treatment chamber 1. At this time, the steel strip is located on the guiding assembly and passes through the heating assembly. The heating assembly heats the steel strip. After the steel strip is heated, the driving component drives the sprocket assembly to rotate, and the clamping assembly on the chain 4 pulls the heated steel strip into the cooling assembly in the heat treatment chamber 1. At this time, the steel strip is still located on the guiding assembly. Then, the sliding component pushes the mounting plate 3 to continue moving towards the discharge port 12 until one end of the horizontal plate 32 in the mounting plate 3 is removed from the discharge port 12 and out of the heat treatment chamber 1. Then, the driving component drives the sprocket assembly to rotate, and the clamping assembly on the chain 4 pulls the steel strip that has passed through the cooling assembly out of the heat treatment chamber 1 from the discharge port 12. Then the steel strip is separated from the guiding assembly. There is no need for manual passage of the steel strip through the heat treatment chamber 1, making it simple and convenient to use.

[0042] like Figure 7 and Figure 8 The clamping assembly includes a pressure plate 41 and a rotating shaft 42 horizontally disposed on the side of the chain 4 away from the side plate 2. A sleeve 43 is rotatably connected to the rotating shaft 42. The sleeve 43 is rectangular in shape. The pressure plate 41 is horizontally located above the sleeve 43. Two opposing screws 44 are vertically disposed at the top of the sleeve 43. The tops of the two screws 44 pass through the pressure plate 41 and are threadedly connected to nuts 45. The pressure plate 41 is used to press one end of the steel strip onto the sleeve 43. After one end of the steel strip is pulled out of the heat treatment box 1 from the discharge port 12, the steel strip can be removed from between the pressure plate 41 and the sleeve 43 by loosening the nuts 45. It is simple and convenient to use.

[0043] like Figure 2 The driving component includes a drive shaft 14 rotatably connected to one side of the heat treatment chamber 1. The drive shaft 14 is located above the side plate 2, and a drive sprocket 141 is provided at the end of the drive shaft 14 near the chain 4. The drive sprocket 141 is located above the chain 4 and meshes with the chain 4. The heat treatment chamber 1 is provided with a drive motor 15 for driving the drive shaft 14 to rotate. When the sliding member pushes the mounting plate 3 to slide on the side plate 2, the drive motor 15 drives the drive sprocket 141 to rotate through the drive shaft 14, so that the sprocket group does not rotate. The purpose of this setting is that when the mounting plate 3 stops moving, by turning on the drive motor 15, the rotation shaft of the drive motor 15 drives the drive sprocket 141 to rotate through the drive shaft 14. At this time, the drive sprocket 141 will drive the sprocket group to rotate through the chain 4. The drive motor 15 can be replaced with a servo motor, which is simple and convenient to use.

[0044] like Figure 3The sprocket assembly includes two first sprockets 23 rotatably connected to the side of the horizontal plate 32 away from the side plate 2, and the two first sprockets 23 are distributed opposite each other. The four corners of the side of the vertical plate 31 away from the side plate 2 are respectively rotatably connected to a second sprocket 24, a third sprocket 25, a fourth sprocket 26, and a fifth sprocket 27. The second sprocket 24, the third sprocket 25, the fourth sprocket 26, and the fifth sprocket 27 are connected to the two first sprockets 23 by a chain 4. When the end of the horizontal plate 32 close to the inlet 11 or the outlet 12 moves out of the inlet 11 or the outlet 12, one of the first sprockets 23 is located outside the heat treatment box 1.

[0045] like Figure 2 and Figure 3 and Figure 4 The guiding assembly includes a first guide shaft 16, a second guide shaft 17, and two third guide shafts 18 rotatably connected inside the heat treatment chamber 1 and on the side corresponding to the side plate 2. The two third guide shafts 18 are close to the heating assembly and are distributed opposite to each other. The first guide shaft 16 and the second guide shaft 17 are both located in the cooling assembly. The second sprocket 24 is opposite to the third sprocket 25, and the fourth sprocket 26 is opposite to the fifth sprocket 27. The fourth sprocket 26 and the fifth sprocket 27 are located below the second sprocket 24 and the third sprocket 25. The first guide shaft 16 and the second guide shaft 17 are both located above one side of the fourth sprocket 26 and the fifth sprocket 27. A fourth guide shaft 19 is rotatably connected inside the heat treatment chamber 1 on the side corresponding to the side plate 2, and the fourth guide shaft 19 is close to the discharge port 12.

[0046] As one end of the steel strip is pulled from the feed inlet 11 into the heat treatment chamber 1, the steel strip is positioned above the two third guide shafts 18 and passes through the heating assembly, such as Figure 5 At this time, the first guide shaft 16 is located above one side between the fourth sprocket 26 and the fifth sprocket 27. After the steel strip is heated, the drive unit drives the sprocket assembly to rotate, and the heated steel strip is pulled into the cooling assembly and around the first guide shaft 16 through the clamping assembly on the chain 4. Then, the sliding member pushes the mounting plate 3 to move towards the discharge port 12 until one end of the horizontal plate 32 in the mounting plate 3 is removed from the discharge port 12 from the heat treatment box 1. Figure 6 At this time, the second guide shaft 17 is located above one side between the fourth sprocket 26 and the fifth sprocket 27. Then, the drive unit drives the sprocket group to rotate. The steel strip is pulled out of the heat treatment box 1 from the discharge port 12 by the clamping assembly on the chain 4, passing under the second guide shaft 17 and around the fourth guide shaft 19. There is no need to manually pass the steel strip through the heat treatment box 1. The first guide shaft 16, the second guide shaft 17, the fourth guide shaft 19, and the two third guide shafts 18 facilitate the subsequent guidance of the steel strip, so that it passes through the heating assembly and the cooling assembly in sequence. It is simple and convenient to use.

[0047] like Figure 2 and Figure 3The heating assembly includes a high-frequency induction heater 5 located at the bottom of the heat treatment chamber 1, and the high-frequency induction heater 5 is located below the third guide shaft 18. The high-frequency induction heater 5 is equipped with a U-shaped high-frequency induction coil 51, and the opening of the high-frequency induction coil 51 faces the side plate 2. The high-frequency induction coil 51 is located between the two third guide shafts 18. The steel strip passes through the high-frequency induction coil 51, and the steel strip can be heated by the high-frequency induction coil 51 on the high-frequency induction heater 5. The U-shaped high-frequency induction coil 51 will not affect the operation and movement of the clamping assembly on the chain 4, and it is simple and convenient to use.

[0048] Both the high-frequency induction heating machine 5 and the U-shaped high-frequency induction coil 51 are existing structures, and will not be described in detail here.

[0049] like Figure 3 and Figure 4 The cooling assembly includes a partition plate 6 located at the bottom of the heat treatment chamber 1, which divides the heat treatment chamber 1 into a placement area 61 and a cooling area 62 for placing quenching liquid. The heating assembly is located in the placement area 61. The first guide shaft 16, the second guide shaft 17, the fourth sprocket 26, the fifth sprocket 27, and the vertical plate 31 are all located in the quenching liquid in the cooling area 62. The steel strip that passes around the first guide shaft 16 and the second guide shaft 17 can be cooled and quenched by the quenching liquid. The quenching liquid can be water or quenching oil.

[0050] like Figure 7 A support plate 321 is provided on the horizontal plate 32 between the two first sprockets 23, and the support plate 321 is located in the chain 4. The upper surface of the support plate 321 contacts the top end of the chain 4. The support plate 321 can reduce the occurrence of the chain 4 being disconnected from the drive sprocket 141 due to gravity.

[0051] like Figure 2 A rotating cylinder 28 is sleeved on the drive shaft 14 and the rotating cylinder 28 is fixedly installed on the top of the side plate 2. The stability of the drive shaft 14 when rotating can be improved by the rotating cylinder 28.

[0052] The procedure for using this device is as follows:

[0053] First, turn on the drive motor 15. The drive motor 15 drives the drive shaft 14 to rotate. The drive shaft 14 drives the drive sprocket 141 to rotate. The drive sprocket 141 drives the second sprocket 24, the third sprocket 25, the fourth sprocket 26, the fifth sprocket 27, and the two first sprockets 23 to rotate via the chain 4 until the shaft 42 on the chain 4 moves to one end of the horizontal plate 32 near the feed port 11.

[0054] The second step is to turn on the rotating motor 13. The rotating shaft of the rotating motor 13 drives the lead screw 22 to rotate. Since the lead screw 22 is threadedly connected to the slide plate 21, and the slide plate 21 is horizontally slidably connected in the slide groove 20, when the lead screw 22 rotates, it can drive the slide plate 21 to slide in the slide groove 20. At this time, the mounting plate 3 formed by the vertical plate 31 and the horizontal plate 32 will move with the slide plate 21 until one end of the horizontal plate 32 and one of the first sprockets 23 are moved out of the heat treatment box 1 from the feed port 11. At this time, the rotating shaft 42 and the sleeve 43 on the rotating shaft 42 will be located outside the heat treatment box 1 (e.g., Figure 4 ).

[0055] The third step is to place one end of the steel strip between the pressure plate 41 and the sleeve 43, and tighten the nut 45 so that the pressure plate 41 presses one end of the steel strip onto the sleeve 43.

[0056] Fourthly, by rotating the motor 13, the mounting plate 3 is moved away from the feed inlet 11. At this time, the pressure plate 41 and the sleeve 43 will pull the steel strip from the feed inlet 11 into the heat treatment chamber 1. At this time, the steel strip is above the two third guide shafts 18 and passes through the high-frequency induction coil 51. At this time, the first guide shaft 16 is located above one side between the fourth sprocket 26 and the fifth sprocket 27 (e.g., Figure 5 After the steel strip is heated by the high-frequency induction coil 51, the drive motor 15 works, so that the pressure plate 41 and sleeve 43 on the chain 4 pull the heated steel strip into the cooling liquid in the heat treatment box 1 for cooling and quenching and bypass the first guide shaft 16.

[0057] Fifth step, by rotating the motor 13, the mounting plate 3 continues to move away from the feed port 11 until the other first sprocket 23 and the end of the horizontal plate 32 near the discharge port 12 are moved out of the heat treatment box 1 from the discharge port 12. At this time, the second guide shaft 17 is located above one side between the fourth sprocket 26 and the fifth sprocket 27.

[0058] Step 6: The drive motor 15 operates, causing the pressure plate 41 and sleeve 43 on the chain 4 to pull the steel strip from under the second guide shaft 17 and around the fourth guide shaft 19, out of the discharge port 12 of the heat treatment box 1 (e.g., Figure 6 ).

[0059] Step 7: Loosen nut 45, remove one end of steel strip from between pressure plate 41 and sleeve 43, and then install steel strip on external winding equipment for winding. During the winding process, the first guide shaft 16, the second guide shaft 17, the fourth guide shaft 19, and the two third guide shafts 18 facilitate the subsequent guidance of steel strip, so that it passes through high-frequency induction coil 51 and coolant in sequence to complete quenching.

[0060] In the above steps, when the mounting plate 3 is moved away from or closer to the feed inlet 11 by rotating the motor 13, the drive motor 15 works, and the drive sprocket 141 keeps the sprocket assembly from rotating.

[0061] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A heat treatment system for coiled spring steel strip, characterized in that, The heat treatment chamber (1) includes a heat treatment chamber (1) and a side plate (2) disposed on one side of the inner wall of the heat treatment chamber (1). The heat treatment chamber (1) is provided with a feed inlet (11) and a discharge outlet (12) that are distributed opposite to each other. A guide assembly is provided on the side of the inner wall of the heat treatment chamber (1) opposite to the side plate (2). A T-shaped mounting plate (3) is provided on the side plate (2), and a feeding assembly that cooperates with the guide assembly is provided on the mounting plate (3). The feeding assembly is used to pass one end of the steel strip through the feed inlet (11) and the guide assembly in sequence, and then convey it out from the discharge outlet (12). The heat treatment box (1) is equipped with a heating component and a cooling component that cooperate with the guiding component. During the process of the feeding component conveying one end of the steel strip through the guiding component from the discharge port (12), one end of the steel strip conveyed by the feeding component passes through the heating component and the cooling component in sequence. When one end of the steel strip passes through the heating component, the heating component heats the steel strip. When one end of the steel strip passes through the cooling component, the cooling component cools and quenches the heated steel strip. When the steel strip is conveyed out from the outlet (12), the feeding assembly separates from the steel strip, and the guiding assembly is used to guide the subsequent steel strip through the heating assembly and the cooling assembly in sequence; The mounting plate (3) includes a vertical plate (31) and a horizontal plate (32) horizontally disposed at the top of the vertical plate (31). The mounting plate (3) is horizontally slidably connected to one side of the side plate (2) along the length direction of the side plate (2) by a sliding member. The sliding member is used to push the mounting plate (3) to slide on the side plate (2), so that the end of the horizontal plate (32) close to the feed port (11) or the discharge port (12) moves out of the feed port (11) or the discharge port (12). The feeding assembly includes a sprocket assembly rotatably connected to the side of the mounting plate (3) away from the side plate (2), and the sprocket assembly is connected by a chain (4). The sprocket assembly makes the chain (4) T-shaped. A clamping assembly is provided on the side of the chain (4) away from the side plate (2). The clamping assembly is used to clamp one end of the steel strip. The heat treatment box (1) is provided with a driving member for driving the sprocket assembly to rotate.

2. The heat treatment system for coiled spring steel strip as described in claim 1, characterized in that, The clamping assembly includes a pressure plate (41) and a rotating shaft (42) horizontally disposed on the side of the chain (4) away from the side plate (2). A sleeve (43) is rotatably connected to the rotating shaft (42). The sleeve (43) is rectangular in shape. The pressure plate (41) is horizontally located above the sleeve (43). Two opposing screws (44) are vertically disposed at the top of the sleeve (43). The tops of the two screws (44) pass through the pressure plate (41) and are threadedly connected to nuts (45). The pressure plate (41) is used to press one end of the steel strip onto the sleeve (43).

3. The heat treatment system for coiled spring steel strip as described in claim 1, characterized in that, The driving component includes a drive shaft (14) rotatably connected to one side of the heat treatment chamber (1). The drive shaft (14) is located above the side plate (2), and a drive sprocket (141) is provided at one end of the drive shaft (14) near the chain (4). The drive sprocket (141) is located above the chain (4) and meshes with the chain (4). The heat treatment chamber (1) is provided with a drive motor (15) for driving the drive shaft (14) to rotate. When the sliding member pushes the mounting plate (3) to slide on the side plate (2), the drive motor (15) drives the drive sprocket (141) to rotate through the drive shaft (14), so that the sprocket assembly remains stationary.

4. The heat treatment system for coiled spring steel strip as described in claim 3, characterized in that, The sprocket assembly includes two first sprockets (23) rotatably connected to the side of the horizontal plate (32) away from the side plate (2), and the two first sprockets (23) are distributed opposite each other. The four corners of the side of the vertical plate (31) away from the side plate (2) are respectively rotatably connected to a second sprocket (24), a third sprocket (25), a fourth sprocket (26), and a fifth sprocket (27). The second sprocket (24), the third sprocket (25), the fourth sprocket (26), and the fifth sprocket (27) are connected to the two first sprockets (23) by a chain (4). When the end of the horizontal plate (32) close to the feed inlet (11) or the discharge outlet (12) moves out of the feed inlet (11) or the discharge outlet (12), one of the first sprockets (23) is located outside the heat treatment box (1).

5. A heat treatment system for coiled spring steel strip as described in claim 4, characterized in that, The guiding assembly includes a first guide shaft (16), a second guide shaft (17), and two third guide shafts (18) rotatably connected inside the heat treatment chamber (1) and on the side corresponding to the side plate (2). The two third guide shafts (18) are close to the heating assembly and are distributed opposite to each other. The first guide shaft (16) and the second guide shaft (17) are both located in the cooling assembly. The second sprocket (24) is opposite to the third sprocket (25). The fourth sprocket (26) is opposite to the fifth sprocket (27), and the fourth sprocket (26) and the fifth sprocket (27) are located below the second sprocket (24) and the third sprocket (25). The first guide shaft (16) and the second guide shaft (17) are both located above one side of the fourth sprocket (26) and the fifth sprocket (27). The fourth guide shaft (19) is rotatably connected inside the heat treatment chamber (1) on the side corresponding to the side plate (2), and the fourth guide shaft (19) is close to the discharge port (12).

6. A heat treatment system for coiled spring steel strip as described in claim 5, characterized in that, The heating assembly includes a high-frequency induction heater (5) located at the bottom of the heat treatment chamber (1), and the high-frequency induction heater (5) is located below the third guide shaft (18). The high-frequency induction heater (5) is provided with a U-shaped high-frequency induction coil (51), and the opening of the high-frequency induction coil (51) faces the side plate (2). The high-frequency induction coil (51) is located between the two third guide shafts (18).

7. A heat treatment system for coiled spring steel strip as described in claim 5, characterized in that, The cooling assembly includes a partition plate (6) disposed at the bottom of the heat treatment chamber (1), and the partition plate (6) divides the heat treatment chamber (1) into a placement area (61) and a cooling area (62) for placing quenching liquid. The heating assembly is disposed in the placement area (61), and the first guide shaft (16), the second guide shaft (17), the fourth sprocket (26), the fifth sprocket (27), and the upright plate (31) are all located in the quenching liquid in the cooling area (62).

8. A heat treatment system for coiled spring steel strip as described in claim 4, characterized in that, The horizontal plate (32) is provided with a support plate (321) located between two first sprockets (23), and the support plate (321) is located in the chain (4), with the upper surface of the support plate (321) in contact with the top end of the chain (4).

9. A heat treatment system for coiled spring steel strip as described in claim 3, characterized in that, A rotating cylinder (28) is sleeved on the drive shaft (14), and the rotating cylinder (28) is fixedly installed on the top of the side plate (2).

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