Heat treatment system for coil spring steel belt

Abstract

The invention discloses a heat treatment system for a coil spring steel belt, relates to the technical field of heat treatment of steel belts, and has the advantages that the steel belt does not need to penetrate through a quenching device manually, so that the quenching device quench the steel belt from the beginning, and the key point of the technical scheme is that the heat treatment system comprises a heat treatment box and a side plate arranged on one side of the inner wall of the heat treatment box; a feeding port and a discharging port which are oppositely distributed are formed in the heat treatment box, a guiding assembly is arranged on the side, opposite to the side plate, of the inner wall of the heat treatment box, a T-shaped mounting plate is arranged on the side plate, a feeding assembly matched with the guiding assembly is arranged on the mounting plate, and a heating assembly and a cooling assembly which are matched with the guiding assembly are arranged on the heat treatment box. When one end of the steel strip penetrates through the heating assembly, the heating assembly heats the steel strip, and when one end of the steel strip penetrates through the cooling assembly, the cooling assembly cools and quench the heated steel strip.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel strip heat treatment, in particular to a heat treatment system for coiled spring steel strip. BACKGROUND

[0002] In the process of steel strip production, in order to improve its hardness and toughness, it is often necessary to quench it by quenching device.

[0003] However, the existing quenching device needs to be opened when in use, and then the end of the steel strip is manually threaded through the quenching device. During this process, due to safety considerations, the quenching device cannot work, which makes the end of the steel strip held by the worker unable to be quenched, and the use is inconvenient. Therefore, the applicant has developed a new technical solution in the actual production process to solve the above technical problems. SUMMARY

[0004] In view of the above technical deficiencies, the purpose of the present application is to provide a heat treatment system for coiled spring steel strip, which has the advantage of not needing manual threading of the steel strip through the quenching device, so that the quenching device can quench the steel strip from the beginning.

[0005] To solve the above technical problems, the present application adopts the following technical solutions: The present application provides a heat treatment system for coiled spring steel strip, comprising a heat treatment box and a side plate arranged on one side of the inner wall of the heat treatment box. The heat treatment box is provided with an inlet and an outlet arranged oppositely. The side of the inner wall of the heat treatment box opposite to the side plate is provided with a guide assembly. The side plate is provided with a T-shaped mounting plate, and the mounting plate is provided with a feeding assembly cooperating with the guide assembly. The feeding assembly is used to thread the end of the steel strip through the inlet, the guide assembly, and then deliver it out of the outlet. The heat treatment box is provided with a heating assembly and a cooling assembly cooperating with the guide assembly. During the process of the feeding assembly delivering the end of the steel strip out of the outlet through the guide assembly, the end of the steel strip delivered by the feeding assembly passes through the heating assembly and the cooling assembly in turn. When the end of the steel strip passes through the heating assembly, the heating assembly heats the steel strip. When the end of the steel strip passes through the cooling assembly, the cooling assembly cools and quenches the heated steel strip. When the steel strip is delivered out of the outlet, the feeding assembly is separated from the steel strip, and the guide assembly is used to guide the subsequent steel strip to pass through the heating assembly and the cooling assembly in turn.

[0006] By adopting the technical scheme, when in use, one end of the steel belt is installed on the feeding assembly, and the one end of the steel belt is sequentially conveyed through the feeding opening, the guide assembly, and then conveyed out from the discharging opening through the feeding assembly. In the process that the one end of the steel belt passes through the guide assembly, the one end of the steel belt sequentially passes through the heating assembly and the cooling assembly. When the one end of the steel belt passes through the heating assembly, the heating assembly heats the steel belt. Then, the heated steel belt passes through the cooling assembly, and the cooling assembly cools and quenches the steel belt. The quenched one end of the steel belt is conveyed out from the discharging opening through the feeding assembly. Then, the one end of the steel belt is detached from the feeding assembly. At this time, the feeding assembly is separated from the steel belt, and the feeding assembly stops working. Through the above process, the steel belt does not need to be manually conveyed through the heat treatment box. After the one end of the steel belt is detached from the feeding assembly, the one end of the steel belt is installed on the external winding device to be wound. In this process, the guide assembly guides the subsequent steel belt to sequentially pass through the heating assembly and the cooling assembly, thereby achieving the purpose of quenching the steel belt from the beginning. The use is simple and convenient.

[0007] Preferably, the mounting plate comprises a vertical plate and a horizontal plate horizontally arranged at the top end of the vertical plate, the mounting plate is connected to one side of the side plate in the length direction of the side plate through a sliding piece, the sliding piece is used to push the mounting plate to slide on the side plate, so that one end of the horizontal plate close to the feeding opening or the discharging opening moves out of the feeding opening or the discharging opening, the feeding assembly comprises a sprocket set rotatably connected to the side of the mounting plate away from the side plate, and the sprocket set is connected through a chain, the sprocket set makes the chain in a T shape, one side of the chain away from the side plate is provided with a clamping assembly, the clamping assembly is used to clamp one end of the steel belt, and the heat treatment box is provided with a driving piece for driving the sprocket set to rotate.

[0008] Preferably, the clamping assembly comprises a pressing plate and a rotating shaft horizontally arranged at the side of the chain away from the side plate, the rotating shaft is rotatably connected with a sleeve, the sleeve has a rectangular shape, the pressing plate is horizontally located above the sleeve, and the top end of the sleeve is vertically provided with two opposite screw rods, and the top ends of the two screw rods pass through the pressing plate and are threadedly connected with nuts, and the pressing plate is used to press one end of the steel belt tightly on the sleeve.

[0009] Preferably, the driving piece comprises a driving shaft rotatably connected to one side of the heat treatment box, the driving shaft is located above the side plate, one end of the driving shaft close to the chain is provided with a driving sprocket, and the driving sprocket is located above the chain and engages with the chain, the heat treatment box is provided with a driving motor for driving the driving shaft to rotate, when the sliding piece pushes the mounting plate to slide on the side plate, the driving motor drives the driving sprocket to rotate through the driving shaft, so that the sprocket set remains not to rotate.

[0010] Preferably, the chain wheel set comprises two first chain wheels rotatably connected to the horizontal plate on the side away from the side plate, and the two first chain wheels are oppositely distributed, and the vertical plate is rotatably connected with a second chain wheel, a third chain wheel, a fourth chain wheel and a fifth chain wheel on the four corners of the side away from the side plate, and the second chain wheel, the third chain wheel, the fourth chain wheel and the fifth chain wheel are connected by a chain with the two first chain wheels, and when the horizontal plate moves out of the feeding port or the discharging port at one end close to the feeding port or the discharging port, one of the first chain wheels is located outside the heat treatment box.

[0011] Preferably, the guide assembly comprises a first guide shaft and a second guide shaft rotatably connected in the heat treatment box and corresponding to one side of the side plate, and two third guide shafts close to the heating assembly and oppositely distributed, and the first guide shaft and the second guide shaft are located in the cooling assembly, the second chain wheel is opposite to the third chain wheel, the fourth chain wheel is opposite to the fifth chain wheel, and the fourth chain wheel and the fifth chain wheel are located below the second chain wheel and the third chain wheel, the first guide shaft and the second guide shaft are located above one side of the fourth chain wheel and the fifth chain wheel, and a fourth guide shaft is rotatably connected in the heat treatment box and corresponding to one side of the side plate, and the fourth guide shaft is close to the discharging port.

[0012] Preferably, the heating assembly comprises a high-frequency induction heating machine arranged at the bottom end of the heat treatment box, and the high-frequency induction heating machine is located below the third guide shaft, the high-frequency induction heating machine is provided with a U-shaped high-frequency induction coil, and the opening of the high-frequency induction coil faces the side plate, and the high-frequency induction coil is located between the two third guide shafts, Preferably, the cooling assembly comprises a partition plate arranged at the bottom end of the heat treatment box, and the partition plate divides the heat treatment box into a placing area and a cooling area for placing quenching liquid, and the heating assembly is arranged in the placing area, and the first guide shaft, the second guide shaft, the fourth chain wheel, the fifth chain wheel and the vertical plate are located in the quenching liquid in the cooling area.

[0013] Preferably, the horizontal plate is provided with a support plate located between the two first chain wheels, and the support plate is located in the chain, and the upper surface of the support plate is in contact with the top end in the chain.

[0014] Preferably, a rotating drum is sleeved on the driving shaft, and the rotating drum is fixedly installed at the top end of the side plate.

[0015] The beneficial effects of the present application are that: when in use, one end of the steel belt is installed on the feeding assembly, and the one end of the steel belt is sequentially conveyed through the feeding opening, the guide assembly, and then conveyed out from the discharging opening through the feeding assembly. In the process of the one end of the steel belt passing through the guide assembly, the one end of the steel belt sequentially passes through the heating assembly and the cooling assembly. When the one end of the steel belt passes through the heating assembly, the steel belt is heated by the heating assembly. Then the heated steel belt passes through the cooling assembly, and the steel belt is cooled and quenched by the cooling assembly. The quenched one end of the steel belt is conveyed out from the discharging opening through the feeding assembly. Then the one end of the steel belt is detached from the feeding assembly. At this time, the feeding assembly is separated from the steel belt, and the feeding assembly stops working. Through the above process, the steel belt does not need to be manually passed through the heat treatment box. After the one end of the steel belt is detached from the feeding assembly, the one end of the steel belt is installed on the external winding device for winding. In this process, the guide assembly guides the subsequent steel belt to sequentially pass through the heating assembly and the cooling assembly, thereby achieving the purpose of quenching the steel belt from the beginning. The use is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a structural schematic view of the present embodiment; Figure 2 It is a structural schematic view of the present embodiment for embodying the side plate; Figure 3 It is a structural schematic view of the present embodiment for embodying the chute; Figure 4 It is a schematic view when one end of the horizontal plate moves out of the feeding opening; Figure 5 It is a structural schematic view of the present embodiment for embodying the partition plate; Figure 6 It is a schematic view when one end of the horizontal plate moves out of the discharging opening; Figure 7 It is a structural schematic view of the present embodiment for embodying the mounting plate; Figure 8 It is Figure 7 It is an enlarged schematic view of the structure of A part in the figure.

[0018] BRIEF DESCRIPTION OF DRAWINGS In the figure: 1, heat treatment box; 11, feeding port; 12, discharging port; 13, rotating motor; 14, driving shaft; 141, driving sprocket; 15, driving motor; 16, first guide shaft; 17, second guide shaft; 18, third guide shaft; 19, fourth guide shaft; 2, side plate; 20, chute; 21, sliding plate; 22, screw rod; 23, first sprocket; 24, second sprocket; 25, third sprocket; 26, fourth sprocket; 27, fifth sprocket; 28, rotating drum; 3, mounting plate; 31, vertical plate; 32, horizontal plate; 321, support plate; 4, chain; 41, pressing plate; 42, rotating shaft; 43, sleeve; 44, screw rod; 45, nut; 5, high-frequency induction heating machine; 51, high-frequency induction coil; 6, partition plate; 61, placement area; 62, cooling area. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0020] A heat treatment system for coiled spring steel strips, as shown in Figure 1 and Figure 2 , comprising a heat treatment box 1 and a side plate 2 arranged on one side of the inner wall of the heat treatment box 1, the heat treatment box 1 is provided with a feeding port 11 and a discharging port 12 distributed oppositely, the side opposite to the side plate 2 of the inner wall of the heat treatment box 1 is provided with a guide assembly, the side plate 2 is provided with a T-shaped mounting plate 3, and the mounting plate 3 is provided with a feeding assembly matched with the guide assembly, the feeding assembly is used for sequentially threading one end of the steel strip through the feeding port 11, the guide assembly, and then conveying the one end of the steel strip out of the discharging port 12. The heat treatment box 1 is provided with a heating assembly and a cooling assembly matched with the guide assembly, in the process that the feeding assembly conveys the one end of the steel strip out of the discharging port 12 through the guide assembly, the one end of the steel strip conveyed by the feeding assembly sequentially passes through the heating assembly and the cooling assembly, when the one end of the steel strip passes through the heating assembly, the heating assembly heats the steel strip, and when the one end of the steel strip passes through the cooling assembly, the cooling assembly cools and quenches the heated steel strip. When the steel strip is conveyed out of the discharging port 12, the feeding assembly is separated from the steel strip, and the guide assembly is used for guiding the subsequent steel strip to sequentially pass through the heating assembly and the cooling assembly.

[0021] As shown in Figure 1 and Figure 2, when in use, one end of the steel belt is installed on the feeding assembly, and the one end of the steel belt is sequentially sent through the feeding opening 11, the guide assembly, and then delivered out of the delivery opening 12 through the feeding assembly. In the process of the one end of the steel belt passing through the guide assembly, the one end of the steel belt sequentially passes through the heating assembly and the cooling assembly. When the one end of the steel belt passes through the heating assembly, the steel belt is heated by the heating assembly. Then the heated steel belt passes through the cooling assembly, and the steel belt is cooled and quenched by the cooling assembly. The quenched one end of the steel belt is delivered out of the delivery opening 12 through the feeding assembly. Then the one end of the steel belt is detached from the feeding assembly. At this time, the feeding assembly is separated from the steel belt, and the feeding assembly stops working. Through the above process, the steel belt does not need to be manually threaded through the heat treatment box 1. After the one end of the steel belt is detached from the feeding assembly, the one end of the steel belt is installed on the winding equipment (not shown in the figure) outside to be wound. In this process, the guide assembly guides the subsequent steel belt to sequentially pass through the heating assembly and the cooling assembly, achieving the purpose of quenching the steel belt from the beginning. The feeding assembly does not affect the guidance of the subsequent steel belt by the guide assembly, and the use is simple and convenient.

[0022] As Figure 2 and Figure 3 and Figure 7 The mounting plate 3 includes a vertical plate 31 and a horizontal plate 32 horizontally arranged at the top end of the vertical plate 31. The mounting plate 3 is connected to one side of the side plate 2 by a sliding member horizontally sliding along the length direction of the side plate 2. The sliding member is used to push the mounting plate 3 to slide on the side plate 2, so that one end of the horizontal plate 32 close to the feeding opening 11 or the delivery opening 12 moves out of the feeding opening 11 or the delivery opening 12. The feeding assembly includes a sprocket set rotatably connected to one side of the mounting plate 3 away from the side plate 2, and the sprocket set is connected by a chain 4. The sprocket set makes the chain 4 in a T shape. One side of the chain 4 away from the side plate 2 is provided with a clamping assembly for clamping one end of the steel belt. The heat treatment box 1 is provided with a driving member for driving the sprocket set to rotate. The sliding member includes a sliding groove 20 arranged on one side of the side plate 2 along the length direction of the side plate 2. A sliding plate 21 is horizontally and slidingly connected in the sliding groove 20. The vertical plate 31 is arranged on the sliding plate 21. A lead screw 22 is rotatably connected between the opposite side walls of the sliding groove 20. One end of the lead screw 22 penetrates through the sliding plate 21 and is threadedly connected with the sliding plate 21. The heat treatment box 1 is provided with a rotating motor 13 for driving the lead screw 22 to rotate. The rotating motor 13 can be replaced by a servo motor. The driving member drives the sprocket set to rotate, so that the clamping assembly on the chain 4 moves to one end of the horizontal plate 32 close to the feeding opening 11. Then the sliding member pushes the mounting plate 3 to move in the direction close to the feeding opening 11 until the clamping assembly and one end of the horizontal plate 32 in the mounting plate 3 move out of the heat treatment box 1 from the feeding opening 11 (as Figure 4), at this time the clamping assembly passes through the heating assembly, then one end of the steel strip is installed on the clamping assembly, then the sliding piece pushes the installation plate 3 away from the feeding port 11, and one end of the steel strip is pulled into the heat treatment box 1 from the feeding port 11, at this time the steel strip is located on the guide assembly and passes through the heating assembly, the steel strip is heated through the heating assembly, the driving piece drives the sprocket set to rotate, and the steel strip after heating is pulled into the cooling assembly in the heat treatment box 1 through the clamping assembly on the chain 4, at this time the steel strip is still located on the guide assembly, then the sliding piece pushes the installation plate 3 to continue to move towards the direction close to the discharge port 12, until one end of the horizontal plate 32 in the installation plate 3 moves out of the heat treatment box 1 from the discharge port 12, then the driving piece drives the sprocket set to rotate, and the steel strip passing through the cooling assembly is pulled out of the heat treatment box 1 from the discharge port 12 through the clamping assembly on the chain 4, then the steel strip is separated from the guide assembly, and manual operation is not required to pass the steel strip through the heat treatment box 1, which is simple and convenient to use.

[0023] As Figure 7 and Figure 8 , the clamping assembly comprises a pressing plate 41 and a rotating shaft 42 horizontally arranged on the side of the chain 4 away from the side plate 2, the rotating shaft 42 is rotationally connected with a sleeve 43, the sleeve 43 has a rectangular shape, the pressing plate 41 is horizontally located above the sleeve 43, and the top end of the sleeve 43 is vertically provided with two opposite screw rods 44, and the top ends of the two screw rods 44 pass through the pressing plate 41 and are threadedly connected with nuts 45, the pressing plate 41 is used for pressing one end of the steel strip against the sleeve 43, when one end of the steel strip is pulled out of the heat treatment box 1 from the discharge port 12, one end of the steel strip can be removed from between the pressing plate 41 and the sleeve 43 by loosening the nuts 45, which is simple and convenient to use.

[0024] As Figure 2 , the driving piece comprises a driving shaft 14 rotationally connected on one side of the heat treatment box 1, the driving shaft 14 is located above the side plate 2, and one end of the driving shaft 14 close to the chain 4 is provided with a driving sprocket 141, and the driving sprocket 141 is located above the chain 4 and engages with the chain 4, and the heat treatment box 1 is provided with a driving motor 15 for driving the driving shaft 14 to rotate, when the sliding piece pushes the installation plate 3 to slide on the side plate 2, the driving motor 15 drives the driving sprocket 141 to rotate through the driving shaft 14, so that the sprocket set does not rotate, the purpose of this setting is that when the installation plate 3 stops moving, the driving motor 15 is turned on, the rotating shaft of the driving motor 15 drives the driving sprocket 141 to rotate through the driving shaft 14, at this time the driving sprocket 141 drives the sprocket set to rotate through the chain 4, and the driving motor 15 can be replaced by a servo motor, which is simple and convenient to use.

[0025] As Figure 3The chain wheel set comprises two first chain wheels 23 rotatably connected to the side of the horizontal plate 32 away from the side plate 2, and the two first chain wheels 23 are oppositely distributed; the side of the vertical plate 31 away from the side plate 2 is rotatably connected with a second chain wheel 24, a third chain wheel 25, a fourth chain wheel 26 and a fifth chain wheel 27 respectively; the second chain wheel 24, the third chain wheel 25, the fourth chain wheel 26 and the fifth chain wheel 27 are connected with the two first chain wheels 23 through the chain 4; when the horizontal plate 32 moves out of the feeding port 11 or the discharging port 12 from the end close to the feeding port 11 or the discharging port 12, one of the first chain wheels 23 is located outside the heat treatment box 1.

[0026] As shown in Figure 2 and Figure 3 and Figure 4 The guide assembly comprises a first guide shaft 16, a second guide shaft 17 and two third guide shafts 18 rotatably connected in the heat treatment box 1 and corresponding to the side of the side plate 2; the two third guide shafts 18 are close to the heating assembly and oppositely distributed; the first guide shaft 16 and the second guide shaft 17 are located in the cooling assembly; the second chain wheel 24 is opposite to the third chain wheel 25; the fourth chain wheel 26 is opposite to the fifth chain wheel 27, and the fourth chain wheel 26 and the fifth chain wheel 27 are located below the second chain wheel 24 and the third chain wheel 25; the first guide shaft 16 and the second guide shaft 17 are located above one side of the fourth chain wheel 26 and the fifth chain wheel 27; the heat treatment box 1 is rotatably connected with a fourth guide shaft 19 corresponding to the side of the side plate 2, and the fourth guide shaft 19 is close to the discharging port 12. When one end of the steel belt is pulled into the heat treatment box 1 from the feeding port 11, the steel belt is located above the two third guide shafts 18 and passes through the heating assembly, as shown in Figure 5 At this time, the first guide shaft 16 is located above one side between the fourth chain wheel 26 and the fifth chain wheel 27; after the steel belt is heated, the driving member drives the chain wheel set to rotate, and the heated steel belt is pulled into the cooling assembly through the clamping assembly on the chain 4 and passes around the first guide shaft 16; then the sliding member pushes the mounting plate 3 to move towards the discharging port 12, until one end of the horizontal plate 32 in the mounting plate 3 moves out of the heat treatment box 1 from the discharging port 12, as shown in Figure 6 At this time, the second guide shaft 17 is located above one side between the fourth chain wheel 26 and the fifth chain wheel 27; then the driving member drives the chain wheel set to rotate, and the steel belt is pulled out of the heat treatment box 1 from the discharging port 12 by passing around the second guide shaft 17 from below and passing around the fourth guide shaft 19, without the need for manual operation to pass the steel belt 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 guiding the subsequent steel belt to pass through the heating assembly and the cooling assembly in turn, which is simple and convenient to use.

[0027] As shown in Figure 2 and Figure 3The heating assembly comprises a high-frequency induction heating machine 5 arranged at the bottom end of the heat treatment box 1, and the high-frequency induction heating machine 5 is located below the third guide shaft 18, the high-frequency induction heating machine 5 is provided with a U-shaped high-frequency induction coil 51, 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, and the steel strip passes through the high-frequency induction coil 51 on the high-frequency induction heating machine 5, so that the steel strip can be heated by the high-frequency induction coil 51, and the U-shaped high-frequency induction coil 51 does not affect the work and movement of the clamping assembly on the chain 4, and the use is simple and convenient.

[0028] The high-frequency induction heating machine 5 and the U-shaped high-frequency induction coil 51 are both existing structures, and will not be described here.

[0029] As Figure 3 and Figure 4 The cooling assembly comprises a partition plate 6 arranged at the bottom end of the heat treatment box 1, and the partition plate 6 divides the heat treatment box 1 into a placing area 61 and a cooling area 62 for placing quenching liquid, the heating assembly is arranged in the placing 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 located in the quenching liquid in the cooling area 62, so that the steel strip passing through the first guide shaft 16 and the second guide shaft 17 can be cooled and quenched by the quenching liquid, and the quenching liquid can be water or quenching oil.

[0030] As Figure 7 The horizontal plate 32 is provided with a support plate 321 located 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 is in contact with the top end in the chain 4, and the support plate 321 can reduce the disconnection of the chain 4 and the driving sprocket 141 caused by gravity.

[0031] As Figure 2 The driving shaft 14 is sleeved with a rotating drum 28, and the rotating drum 28 is fixedly installed at the top end of the side plate 2, so that the stability of the driving shaft 14 during rotation can be improved.

[0032] The use process of the device is as follows: Firstly, the driving motor 15 is turned on, the driving shaft 14 is driven to rotate by the rotating shaft of the driving motor 15, the driving shaft 14 drives the driving sprocket 141 to rotate, the driving 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 through the chain 4, until the rotating shaft 42 on the chain 4 moves to one end of the horizontal plate 32 close to the feeding port 11.

[0033] Second step, open the rotating motor 13, the rotating shaft of the rotating motor 13 drives the screw rod 22 to rotate, because the screw rod 22 is threadedly connected with the sliding plate 21, and the sliding plate 21 is horizontally slidably connected in the sliding groove 20, so when the screw rod 22 rotates, the sliding plate 21 can be driven to slide in the sliding groove 20, at this time the mounting plate 3 formed by the vertical plate 31 and the horizontal plate 32 will move with the sliding plate 21, until the one end of the horizontal plate 32 and one of the first sprocket wheels 23 are moved out of the heat treatment box 1 from the feeding port 11, at this time the rotating shaft 42 and the sleeve 43 on the rotating shaft 42 are located outside the heat treatment box 1 (such as Figure 4 ).

[0034] Third step, place one end of the steel strip between the pressing plate 41 and the sleeve 43, and tighten the nut 45 so that the pressing plate 41 tightly presses one end of the steel strip on the sleeve 43.

[0035] Fourth step, move the mounting plate 3 away from the feeding port 11 by rotating the motor 13, at this time the pressing plate 41 and the sleeve 43 will pull the steel strip from the feeding port 11 into the heat treatment box 1, at this time the steel strip is located 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 wheel 26 and the fifth sprocket wheel 27 (such as Figure 5 ), after heating the steel strip by the high-frequency induction coil 51, the driving motor 15 works, the pressing plate 41 and the 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.

[0036] Fifth step, continue to move the mounting plate 3 away from the feeding port 11 by rotating the motor 13, until the other first sprocket wheel 23 and the horizontal plate 32 are moved out of the heat treatment box 1 from the discharging port 12, at this time the second guide shaft 17 is located above one side between the fourth sprocket wheel 26 and the fifth sprocket wheel 27.

[0037] Sixth step, the driving motor 15 works, the pressing plate 41 and the sleeve 43 on the chain 4 pull the steel strip from below the second guide shaft 17 and bypass the fourth guide shaft 19 from the discharging port 12 out of the heat treatment box 1 (such as Figure 6 ).

[0038] Seventh step, loosen the nut 45, take off one end of the steel strip from between the pressing plate 41 and the sleeve 43, then install the steel strip on the winding device outside to be wound, in 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 guiding the subsequent steel strip to pass through the high-frequency induction coil 51, the cooling liquid in turn, and complete quenching.

[0039] In the above step, when the mounting plate 3 is moved away from or close to the feeding opening 11 by rotating the motor 13, the driving motor 15 is operated to keep the sprocket set from rotating by driving the sprocket 141.

[0040] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A heat treatment system for coiling a spring steel strip, characterized in that, The utility model relates to a heat treatment box, which comprises a heat treatment box (1) and a side plate (2) arranged on one side of the inner wall of the heat treatment box (1), wherein the heat treatment box (1) is provided with an inlet (11) and an outlet (12) arranged oppositely, the side opposite to the side plate (2) of the inner wall of the heat treatment box (1) is provided with a guide assembly, the side plate (2) is provided with a T-shaped mounting plate (3), the mounting plate (3) is provided with a feeding assembly matched with the guide assembly, and the feeding assembly is used for sequentially threading one end of a steel belt through the inlet (11), the guide assembly, and then conveying the steel belt out of the outlet (12). The heat treatment box (1) is provided with a heating assembly and a cooling assembly matched with the guide assembly, and in the process of conveying one end of the steel belt out of the outlet (12) by the feeding assembly, the one end of the steel belt conveyed by the feeding assembly sequentially passes through the heating assembly and the cooling assembly, the heating assembly heats the steel belt when the one end of the steel belt passes through the heating assembly, and the cooling assembly cools and quenches the heated steel belt when the one end of the steel belt passes through the cooling assembly. When the steel belt is conveyed out of the outlet (12), the feeding assembly is separated from the steel belt, and the guide assembly is used for guiding the subsequent steel belt to sequentially pass through the heating assembly and the cooling assembly.

2. A heat treatment system for coiling a spring steel strip as claimed in claim 1, characterized in that The mounting plate (3) comprises a vertical plate (31) and a horizontal plate (32) horizontally arranged at the top end of the vertical plate (31), the mounting plate (3) is connected to one side of the side plate (2) by a sliding piece in the length direction of the side plate (2), the sliding piece is used for pushing the mounting plate (3) to slide on the side plate (2), so that one 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), the feeding assembly comprises a sprocket set rotatably connected to one side of the mounting plate (3) away from the side plate (2), and the sprocket set is connected by a chain (4), the sprocket set makes the chain (4) in a T shape, one side of the chain (4) away from the side plate (2) is provided with a clamping assembly, the clamping assembly is used for clamping one end of the steel belt, and the heat treatment box (1) is provided with a driving piece used for driving the sprocket set to rotate.

3. A heat treatment system for coiling a spring steel strip as claimed in claim 2, characterized in that The clamping assembly comprises a pressing plate (41) and a rotating shaft (42) horizontally arranged on one side of the chain (4) away from the side plate (2), the rotating shaft (42) is rotatably connected with a sleeve (43), the sleeve (43) has a rectangular shape, the pressing plate (41) is horizontally arranged above the sleeve (43), two opposite screw rods (44) are vertically arranged at the top end of the sleeve (43), and the top ends of the two screw rods (44) pass through the pressing plate (41) and are threadedly connected with nuts (45), and the pressing plate (41) is used for pressing one end of the steel belt on the sleeve (43).

4. A heat treatment system for coiling a spring steel strip as defined in claim 2, characterized in that The driving member comprises a driving shaft (14) rotatably connected to one side of the heat treatment box (1), the driving shaft (14) is located above the side plate (2), and one end of the driving shaft (14) close to the chain (4) is provided with a driving sprocket (141), and the driving sprocket (141) is located above the chain (4) and is engaged with the chain (4), the heat treatment box (1) is provided with a driving motor (15) for driving the driving shaft (14) to rotate, when the sliding member pushes the mounting plate (3) to slide on the side plate (2), the driving motor (15) drives the driving sprocket (141) to rotate through the driving shaft (14), so that the sprocket set remains not to rotate.

5. A heat treatment system for coiling a spring steel strip as claimed in claim 4, characterized in that The sprocket set comprises two first sprockets (23) rotatably connected to the side away from the side plate (2) of the horizontal plate (32), and the two first sprockets (23) are oppositely distributed, the side away from the side plate (2) of the vertical plate (31) is rotatably connected with a second sprocket (24), a third sprocket (25), a fourth sprocket (26) and a fifth sprocket (27) respectively at four corners, the second sprocket (24), the third sprocket (25), the fourth sprocket (26) and the fifth sprocket (27) are connected through the chain (4), when one end of the horizontal plate (32) close to the feeding port (11) or the discharging port (12) moves out of the feeding port (11) or the discharging port (12), one of the first sprockets (23) is located outside the heat treatment box (1).

6. A heat treatment system for coiling a spring steel strip as claimed in claim 5, characterized in that The guide assembly comprises a first guide shaft (16), a second guide shaft (17) and two third guide shafts (18) rotatably connected in the heat treatment box (1) and corresponding to one side of the side plate (2), the two third guide shafts (18) are close to the heating assembly and oppositely distributed, the first guide shaft (16) and the second guide shaft (17) are 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 located above one side of the fourth sprocket (26) and the fifth sprocket (27), and the heat treatment box (1) is rotatably connected with a fourth guide shaft (19) corresponding to one side of the side plate (2), and the fourth guide shaft (19) is close to the discharging port (12).

7. A heat treatment system for coiling a spring steel strip as claimed in claim 6, characterized in that The heating assembly comprises a high-frequency induction heating machine (5) arranged at the bottom end of the heat treatment box (1), and the high-frequency induction heating machine (5) is located below the third guide shaft (18), the high-frequency induction heating machine (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), and the high-frequency induction coil (51) is located between the two third guide shafts (18).

8. A heat treatment system for coiling a spring steel strip as defined in claim 6, characterized in that The cooling assembly comprises a partition plate (6) arranged at the bottom end of the heat treatment box (1), and the partition plate (6) divides the heat treatment box (1) into a placing area (61) and a cooling area (62) for placing quenching liquid, the heating assembly is arranged in the placing area (61), and 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).

9. A heat treatment system for coiling a spring steel strip as defined in claim 5, wherein, The horizontal plate (32) is provided with a supporting plate (321) located between the two first sprockets (23), and the supporting plate (321) is located in the chain (4), and the upper surface of the supporting plate (321) is in contact with the top end in the chain (4).

10. The heat treating system for coiling spring steel strip of claim 4 wherein, The driving shaft (14) is sleeved with a rotating drum (28), and the rotating drum (28) is fixedly installed at the top end of the side plate (2).

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