A heat treatment apparatus for circular cutters

Abstract

The utility model discloses a kind of heat treatment devices for circular cutter, circular cylinder is equipped with circular turntable, transmission mechanism is equipped at the bottom of turntable, several rotating seats are equipped on turntable, rotating seat is evenly distributed in circumferential direction on turntable, tool support frame is placed on rotating seat, several elastic clamps are sequentially fixed from top to bottom on tool support frame, one circular cutter is clamped on elastic clamp, displacement mechanism is fixed on the lateral wall of circular cylinder, support plate that can move forward and backward is equipped on displacement mechanism, support plate is located in circular cylinder, several electric induction coils are sequentially fixed from top to bottom on support plate, the height of electric induction coil corresponds with the height of circular cutter, the inner wall of circular cylinder is also fixed with several spray heads, one side of the circular cylinder in the new type is equipped with an induction heating station, a spray station, turntable revolves with rotating seat, tool is placed on rotating seat, carries out heating quenching, quenching quality is good, and efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of workpiece heat treatment equipment, and in particular to a heat treatment device for circular cutting tools. Background Technology

[0002] Knives are common tools in daily life and industrial production. They are typically made by repeatedly forging metal and then subjecting it to multiple heat treatment processes. In the heat treatment process, the cutting edge is usually heated and quenched using an induction coil. The heating principle involves generating an alternating magnetic field through alternating current, inducing currents (eddy currents) within the metal. Joule's law is then used to convert electrical energy into heat energy. This allows for selective heating of specific areas of the cutting edge, resulting in rapid and efficient heating.

[0003] Cutting tools come in various shapes and have different cutting edges. Currently, heat treatment of these tools is mostly done semi-manually, one tool at a time, requiring a large workforce and resulting in low efficiency. Round cutting tools, in particular, cannot be heated by holding one side close to the coil, nor can the cutting edge be heated and quenched in sections. Workers must rely on experience to hold the tool and place it in the heating coil for quenching, which is inefficient, unscientific, and results in inconsistent quenching quality. More importantly, it poses a high safety risk; workers often burn their hands if they are not careful. This is a current problem. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a heat treatment device specifically for circular cutting tools, which provides stable quenching and can quench multiple cutting tools at once, with high safety and high efficiency.

[0005] This utility model is achieved through the following technical solution: A heat treatment device for a circular cutting tool includes a cylinder, characterized in that: a circular turntable is provided inside the cylinder, a transmission mechanism is provided at the bottom of the turntable, a plurality of rotating seats are provided on the turntable, the rotating seats are evenly distributed circumferentially on the turntable, a cutting tool support frame is placed on each rotating seat, a plurality of elastic clamps are fixed from top to bottom on the cutting tool support frame, a circular cutting tool is clamped on each elastic clamp, a displacement mechanism is fixed on the side wall of the cylinder, a support plate that can move back and forth is provided on the displacement mechanism, the support plate is located inside the cylinder, a plurality of induction coils are fixed from top to bottom on the support plate, the height of each induction coil corresponds to the height of the circular cutting tool, and a plurality of spray heads are also fixed on the inner wall of the cylinder.

[0006] Further optimized, a limit block is fixed on the rotary seat, and a limit groove adapted to the limit block is opened at the bottom of the tool support frame.

[0007] In a further optimized manner, the elastic clamp includes an upper support block, a lower support block, a spring, and a clamping plate. The upper and lower support blocks are fixed on the tool support frame. A spring is fixed to the bottom of the upper support block, and the clamping plate is fixed on the spring. The clamping plate presses the circular tool onto the lower support block.

[0008] Further optimized, an arc-shaped limiting strip is fixed on the lower support block.

[0009] In a further optimized manner, the displacement mechanism includes a fixed column and a linear slide. The fixed column is fixed to the outer wall of the cylinder, the linear slide is fixed to the fixed column, a fixed plate is fixed to the slide seat of the linear slide, and a support plate is fixed to the fixed plate. The output of the linear slide drives the induction coil on the support plate to move closer to or away from the circular tool on the tool support frame.

[0010] In a further optimized manner, the transmission mechanism includes a first transmission mechanism and a second transmission mechanism, wherein the first transmission mechanism is used to drive the turntable to rotate, and the second transmission mechanism is used to drive a plurality of rotating seats to rotate.

[0011] In a further optimized manner, the first transmission mechanism includes a first motor and a gear ring bearing. The turntable is rotatably connected inside the cylinder via the gear ring bearing. The first motor is fixed at the bottom of the cylinder, and a gear that meshes with the gear ring bearing is fixed on the output shaft of the first motor.

[0012] In a further optimized manner, the second transmission mechanism includes a second motor and several bearing seats. The bearing seats are mounted on a turntable, and the rotating seat is rotatably connected to the turntable via the bearing seats. The second motor is fixed on the turntable, and a transmission gear is provided at the bottom of the turntable. The output of the second motor drives the rotating seat to rotate via the transmission gear.

[0013] The beneficial effects of this utility model are: This new type of cylindrical structure has an induction heating station and a spraying station on one side. A turntable rotates with a rotating seat, on which cutting tools are placed for heating and quenching. During the intervals between turntable rotations, the operator can remove the support frame with the quenched cutting tools and then place a support frame with the unquenched cutting tools on top. The entire process can be repeated without stopping the machine, quenching multiple cutting tools at once, resulting in high work efficiency.

[0014] In this new type of heating and spraying process, the rotating seat can rotate to drive the tool to rotate, making the heating and quenching more uniform and improving the overall quenching quality of the tool.

[0015] When using this new type of tool, several support brackets for holding the circular blades need to be prepared in advance so that the prop brackets on the turntable can be replaced in time. The circular blade is inserted into the bracket through the through hole in the middle of the blade and locked between the elastic clamps. The clamping plates of the elastic clamps are chamfered, and the lower support block is equipped with a limiting strip to facilitate locking the blade and ensure that the blade is centered on the bracket. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the structure of the bottom of the turntable in this utility model.

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0019] Figure 4 This is a partial structural diagram of the tool support bracket in this utility model. Figure 1 .

[0020] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0021] Figure 6 for Figure 4 Enlarged diagram of point B in the middle.

[0022] Figure 7 This is a partial structural diagram of the tool support bracket in this utility model. Figure 2 .

[0023] Figure 8 This is a top view of the tool support frame in this utility model.

[0024] In the diagram: 1. Cylinder; 11. Drain outlet; 2. Turntable; 3. Rotating seat; 31. Limiting block; 4. Tool support frame; 41. Elastic clamp; 411. Upper support block; 412. Spring; 413. Clamping piece; 414. Lower support block; 415. Limiting strip; 42. Limiting groove; 51. Fixed column; 52. Linear slide; 53. Fixed plate; 54. Support plate; 55. Induction coil; 61. Diverter pipe; 62. Spray head; 71. First motor; 72. Gear ring bearing; 81. Second motor; 82. Transmission gear; 83. Bearing seat; 9. Tool. Detailed Implementation

[0025] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. In the description of this invention, it should be noted that the terms "left," "right," "front," "rear," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0026] like Figures 1-8 As shown, this utility model provides a heat treatment device for a circular cutting tool, including a cylinder 1, a circular turntable 2 inside the cylinder 1, a transmission mechanism at the bottom of the turntable 2, and a plurality of rotating seats 3 on the turntable 2. The rotating seats 3 are evenly distributed circumferentially on the turntable 2. The turntable drives the rotating seats to revolve around the revolution, and the rotating seats can rotate on their own axis.

[0027] Each of the rotating seats 3 is equipped with a tool support frame 4. Several elastic clamps 41 are fixed on the tool support frame 4 from top to bottom. Each elastic clamp 41 clamps a circular tool 9. A displacement mechanism is fixed on the side wall of the cylinder 1. The displacement mechanism is equipped with a support plate 54 that can move back and forth. The support plate 54 is located inside the cylinder 1. Several induction coils 55 are fixed on the support plate 54 from top to bottom. The height of each induction coil 55 corresponds to the height of the circular tool 9 on each tool support frame. The number of induction coils is the same as the number of tools placed on each support frame.

[0028] When the turntable rotates the circular cutter to the heating position, the displacement mechanism moves the induction coil 55 above the cutter. The rotating seat 3 rotates the cutter while the induction coil heats the cutter. A diversion pipe 61 is also fixed on the inner wall of the cylinder 1. Several spray nozzles 62 are provided on the diversion pipe, which are the quenching stations. After the cutter is heated, the induction coil moves backward, and the heated cutter is rotated to the quenching station for spray quenching. At the same time, a new cutter is rotated to the heating station for heating, and the cycle continues.

[0029] In a preferred embodiment, a limiting block 31 is fixed on the rotating base 3, and a limiting groove 42 adapted to the limiting block 31 is provided at the bottom of the tool support frame 4. The edge of the limiting block is chamfered to facilitate alignment and placement of the limiting groove. The operator's operating position is opposite the heating station. When the induction coil moves back and forth, neither the turntable nor the rotating base rotates. The operator needs to remove the quenched tool support frame in time and replace it with a new tool support frame to facilitate continuous operation without stopping the machine.

[0030] As a preferred implementation method, such as Figure 4 ,5 As shown in Figures 6, 7, and 8, the elastic clamp 41 includes an upper support block 411, a lower support block 414, a spring 412, and a clamping plate 413. The upper support block 411 and the lower support block 414 are fixed to the tool support frame 4. The spring 412 is fixed to the bottom of the upper support block 411, and the clamping plate 413 is fixed to the spring 412. The clamping plate 413 presses the circular tool 9 onto the lower support block 414. The clamping plate of the elastic clamp has a chamfer to facilitate tool insertion. Before this equipment is put into operation, multiple tool support frames need to be pre-clamped with the circular tool to facilitate easy replacement for quenching. It should be noted that the diameter distance d of the through hole in the middle of the circular tool should always be greater than L to ensure that the circular tool can be clamped in the elastic clamp. Different specifications of tools can use different specifications of tool support frames.

[0031] In a preferred embodiment, an arc-shaped limiting strip 415 is fixed on the lower support block 414. The limiting strip is adapted to the inner diameter of the through hole to ensure that the circular cutter is in the center position of the bracket, and the heating is more uniform during rotation.

[0032] In a preferred embodiment, the displacement mechanism includes a fixed column 51 and a linear slide 52. The fixed column 51 is fixed to the outer wall of the cylinder 1, and the linear slide 52 is fixed to the fixed column 51. A fixed plate 53 is fixed on the slide of the linear slide 52, and a support plate 54 is fixed to the fixed plate 53. The linear slide 52 outputs an induction coil 55 on the support plate 54 to move closer to or away from the circular cutter 9 on the cutter support frame 4, wherein the induction coil is located directly above the circular cutter when heating.

[0033] In a preferred embodiment, the transmission mechanism includes a first transmission mechanism and a second transmission mechanism. The first transmission mechanism is used to drive the turntable 2 to rotate, and the second transmission mechanism is used to drive a plurality of rotating seats 3 to rotate.

[0034] In a preferred embodiment, the first transmission mechanism includes a first motor 71 and a gear ring bearing 72. The turntable 2 is rotatably connected inside the cylinder 1 through the gear ring bearing 72. The first motor 71 is fixed at the bottom of the cylinder 1. The output shaft of the first motor 71 passes through the cylinder, and a gear that meshes with the gear ring bearing is fixed on the output shaft.

[0035] In a preferred embodiment, the second transmission mechanism includes a second motor 81 and several bearing seats 83. The bearing seats 83 are disposed on the turntable 2. The rotating seat 3 is rotatably connected to the turntable 2 through the bearing seats 83. The second motor 81 is fixed on the turntable 2 and passes downward through the turntable. A transmission gear 82 is provided at the bottom of the turntable 2. The output of the second motor 81 drives the rotating seat 3 to rotate through the transmission gear 82.

[0036] The bottom of the cylindrical part of this new type is provided with a drain pipe 11, and the diversion pipe 61 is connected to external water supply equipment such as a booster pump through a flexible hose.

[0037] This solution also includes a controller, the position of which is set by the operator according to the actual situation. The controller is used to control the electrical components used in this solution, including but not limited to the first motor, the second motor, the linear slide, the induction coil, the booster pump, the switch button, and the sensor. The controller is a domestic Ascend series, PLC controller, ARM processor, or microcontroller. It is also used in conjunction with a motherboard, memory module, storage medium, and power supply. All motors and bearings used in this solution have been sealed.

[0038] All aspects not detailed in this utility model are well-known to those skilled in the art. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A heat treatment apparatus for a circular cutting tool, comprising a cylinder, characterized in that: The cylinder contains a circular turntable with a transmission mechanism at its bottom. Several rotating seats are evenly distributed circumferentially on the turntable, and each seat holds a tool support frame. Several elastic clamps are fixed to the tool support frame from top to bottom, and each elastic clamp holds a circular tool. A displacement mechanism is fixed to the side wall of the cylinder, and a movable support plate is mounted on the displacement mechanism inside the cylinder. Several induction coils are fixed to the support plate from top to bottom, with the height of each induction coil corresponding to the height of the circular tool. Several spray heads are also fixed to the inner wall of the cylinder.

2. The heat treatment apparatus for circular cutting tools according to claim 1, characterized in that: A limiting block is fixed on the rotating seat, and a limiting groove adapted to the limiting block is opened at the bottom of the tool support frame.

3. The heat treatment apparatus for a circular cutting tool according to claim 1, characterized in that: The elastic clamp includes an upper support block, a lower support block, a spring, and a clamping plate. The upper and lower support blocks are fixed on the tool support frame. A spring is fixed to the bottom of the upper support block, and the clamping plate is fixed to the spring. The clamping plate presses the circular tool onto the lower support block.

4. The heat treatment apparatus for a circular cutting tool according to claim 3, characterized in that: An arc-shaped limiting strip is fixed on the lower support block.

5. The heat treatment apparatus for a circular cutting tool according to claim 1, characterized in that: The displacement mechanism includes a fixed column and a linear slide. The fixed column is fixed to the outer wall of the cylinder, and the linear slide is fixed to the fixed column. A fixed plate is fixed on the slide of the linear slide, and the support plate is fixed on the fixed plate. The output of the linear slide drives the induction coil on the support plate to move closer to or away from the circular tool on the tool support frame.

6. The heat treatment apparatus for a circular cutting tool according to claim 1, characterized in that: The transmission mechanism includes a first transmission mechanism and a second transmission mechanism. The first transmission mechanism is used to drive the turntable to rotate, and the second transmission mechanism is used to drive a plurality of rotating seats to rotate.

7. The heat treatment apparatus for a circular cutting tool according to claim 6, characterized in that: The first transmission mechanism includes a first motor and a gear ring bearing. The turntable is rotatably connected inside the cylinder through the gear ring bearing. The first motor is fixed at the bottom of the cylinder, and a gear that meshes with the gear ring bearing is fixed on the output shaft of the first motor.

8. The heat treatment apparatus for a circular cutting tool according to claim 7, characterized in that: The second transmission mechanism includes a second motor and several bearing seats. The bearing seats are mounted on a turntable, and the rotating seat is rotatably connected to the turntable via the bearing seats. The second motor is fixed on the turntable, and a transmission gear is provided at the bottom of the turntable. The output of the second motor drives the rotating seat to rotate via the transmission gear.

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