Stainless steel bolt heat treatment equipment

Abstract

This invention belongs to the field of stainless steel bolt heat treatment technology, specifically a stainless steel bolt heat treatment device. It includes a base plate with a support seat fixedly installed on it. Two sets of pulleys are rotatably installed on the top of the support seat, each set rotatably connected to a synchronous belt. Two sets of receiving components are fixedly installed on the synchronous belt, each receiving component being fixedly connected to a guide block. The guide block is slidably connected to a slide rail, which is equipped with a feeding mechanism. A heating mechanism for heating stainless steel bolts is installed on the support seat. During the heat treatment of stainless steel bolts on one set of feeding seats, the heating mechanism can simultaneously remove heat-treated stainless steel bolts from the other set of feeding seats and place the bolts to be heat-treated onto the other set of feeding seats. This allows for simultaneous removal and heat treatment of the stainless steel bolts, saving time and improving the efficiency of the heat treatment.

Description

Technical Field

[0001] This invention belongs to the field of stainless steel bolt heat treatment technology, specifically a stainless steel bolt heat treatment equipment. Background Technology

[0002] Bolt heat treatment is a key process in metal processing. By precisely controlling the heating, holding and cooling of bolts, their internal metallographic structure is changed, thereby significantly improving their hardness, tensile strength, fatigue life and wear resistance. Common processes include quenching, tempering, normalizing and annealing.

[0003] Patent CN221501176U discloses a heat treatment device for high-hardness stainless steel bolts, including a support frame body and a feeding mechanism. The feeding mechanism adopts a sliding rail feeding trolley design, and a protective plate is provided at the upper end of the feeding plate to effectively prevent bolts from splashing due to vibration. The slider and the sliding rail are precisely matched to ensure smooth and continuous feeding. The device cabinet door adopts a double-layer asbestos insulation structure. The heat insulation plate and the heat insulation layer work together to significantly reduce heat loss, improve energy utilization efficiency and operational safety. The overall structure is compact and reasonable, combining protection and heat insulation, and is suitable for automated heat treatment of high-hardness stainless steel bolts.

[0004] In the above-mentioned scheme, before the bolts are heat-treated, they need to be stacked on a storage plate. After the bolts are heat-treated, they need to be removed from the storage plate before the next batch of bolts can be heat-treated. In this process, the removal and placement of bolts wastes a lot of time and reduces the efficiency of the heat treatment of bolts. Therefore, the present invention provides a heat treatment equipment for stainless steel bolts. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The stainless steel bolt heat treatment equipment of the present invention includes a base plate, a support seat fixedly installed on the base plate, two sets of pulleys rotatably installed on the top of the support seat, both sets of pulleys are rotatably connected to a synchronous belt, two sets of receiving parts are fixedly installed on the synchronous belt, the receiving parts are fixedly connected to guide blocks, the guide blocks are slidably connected to a slide rail, a feeding mechanism is installed on the slide rail, a heating mechanism for heating stainless steel bolts is installed on the support seat, the feeding mechanism includes a horizontal arm, the horizontal arm is fixedly installed on the slide rail, a pin is fixedly connected to one end of the horizontal arm, a heat insulation plate is fixedly connected to the other end of the horizontal arm, and a feeding seat is fixedly connected to the heat insulation plate. The feeding seat is used to hold stainless steel bolts. Two sets of guide grooves are symmetrically opened on the support seat, and two sets of pins are respectively located in the two sets of guide grooves. The guide grooves are composed of one set of long transverse grooves, two sets of oblique grooves, and two sets of short transverse grooves. The support seat also has two sets of rectangular grooves symmetrically opened, and guide columns are fixedly installed in the rectangular grooves. Guide blocks are slidably connected to the guide columns. During the heat treatment of stainless steel bolts on one set of feeding seats, the heating mechanism can simultaneously remove the heat-treated stainless steel bolts from another set of feeding seats and place the stainless steel bolts to be heat-treated on another set of feeding seats. This allows the removal and heat treatment of stainless steel bolts to be carried out simultaneously, saving the time required for removing and placing stainless steel bolts and improving the efficiency of heat treatment of stainless steel bolts.

[0007] Preferably, the feeding seat includes a fixed seat, a heat insulation plate fixedly connected to one end of the fixed seat, a movable seat installed on the fixed seat, two sets of second feeding frames symmetrically and movably inserted into the movable seat, and a first feeding frame movably inserted between the two sets of second feeding frames. The first feeding frame is used to place stainless steel bolts. The two sides of the second feeding frame are provided with receiving grooves. The two sets of receiving grooves are slidably connected to receiving blocks. One set of receiving blocks is fixedly connected to the side wall of the first feeding frame, and the other set of receiving blocks is fixedly connected to the inner wall of the movable seat. A pressure rod for pushing the first feeding frame is movably inserted into the fixed seat. The upper end of the pressure rod is attached to the bottom of the first feeding frame. An inclined surface for pushing the pressure rod is provided on the support seat. Because the first and second feeding frames are arranged in a stepped manner, the stainless steel bolts stacked on the feeding seat are divided into five parts. Each of the five parts of the stainless steel bolts will individually contact the heat source inside the heating mechanism, making the heat transfer efficiency of the stainless steel bolts higher, the temperature more uniform, and the heating time shorter, thus improving the heat treatment efficiency of the stainless steel bolts.

[0008] Preferably, the feeding mechanism further includes a limiting mechanism, which includes a guide rod that passes through the cross arm, the heat insulation plate, and the fixed seat in sequence. A spring is sleeved on one end of the guide rod, and a hook is fixedly connected to the other end of the guide rod. The fixed seat has a placement groove, and the movable seat is inserted into the placement groove. The bottom of the movable seat has a movable groove, and one side of the movable groove has a slot for engaging the hook. Two sets of baffles for pushing the guide rod are symmetrically installed on the support seat. By using a limit mechanism and a slot, the movable seat can be automatically limited and unlocked, which facilitates the quick loading and unloading of the movable seat, the first loading frame, and the second loading frame by the staff, and directly improves the efficiency of the staff in loading and unloading stainless steel bolts.

[0009] The beneficial effects of this invention are as follows: 1. During the heat treatment of stainless steel bolts on one set of feeding seats, the heating mechanism can simultaneously remove the heat-treated stainless steel bolts from another set of feeding seats and place the stainless steel bolts to be heat-treated on another set of feeding seats. This allows the removal and heat treatment of stainless steel bolts to be carried out simultaneously, saving the time required for removing and placing stainless steel bolts and improving the efficiency of heat treatment of stainless steel bolts.

[0010] 2. Because the first and second feeding frames are arranged in a stepped manner, the stainless steel bolts stacked on the feeding seat are divided into five parts. Each of the five parts of stainless steel bolts will individually contact the heat source inside the heating mechanism, which makes the heat transfer efficiency of the stainless steel bolts higher, the temperature more uniform, and the heating time shorter, thereby improving the heat treatment efficiency of the stainless steel bolts.

[0011] 3. Through the coordinated setting of the limiting mechanism, the slot, and the slot, the movable seat can be automatically limited and unlocked, which facilitates the quick picking and placing of the movable seat, the first feeding frame, and the second feeding frame by the staff, and directly speeds up the efficiency of picking and placing stainless steel bolts. Attached Figure Description

[0012] The invention will now be further described with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the combination of support base, pulley, timing belt, receiving component and guide block of the present invention.

[0015] Figure 3 This is a schematic diagram of the combination of the feeding mechanism and the heating mechanism of the present invention.

[0016] Figure 4 This is a schematic diagram of the heat insulation plate and the feeding seat of the present invention.

[0017] Figure 5 This is a schematic diagram of another state of the material feeding seat of the present invention.

[0018] Figure 6 This is a schematic diagram of the combination of the pressure-bearing rod, the first feeding frame, and the second feeding frame of the present invention.

[0019] Figure 7 This is a schematic diagram of the combination of the support base, feeding mechanism and heating mechanism of the present invention.

[0020] Figure 8 This is a schematic diagram of the combination of the horizontal arm, fixed seat, movable seat, and limiting mechanism of the present invention.

[0021] Figure 9 This is a side sectional view of the combination of the fixed seat, movable seat, and limiting mechanism of the present invention.

[0022] Figure 10 This is a schematic diagram of the combination of the support base and the feeding mechanism of the present invention. In the diagram: 1. Base plate; 2. Support seat; 21. Rectangular groove; 22. Guide post; 23. Inclined surface; 24. Baffle; 3. Pulley; 4. Synchronous belt; 5. Receiving component; 6. Guide block; 7. Feeding mechanism; 701. Cross arm; 702. Pin; 703. Heat insulation plate; 704. Feeding seat; 7041. Fixed seat; 41. Placement groove; 7042. Movable seat; 42. Movable groove; 43. Slot; 7043. Pressure rod; 7044. First feeding frame; 7045. Second feeding frame; 51. Receiving groove; 52. Receiving block; 705. Limiting mechanism; 7051. Guide rod; 7052. Hook; 7053. Spring; 8. Heating mechanism; 9. Guide groove; 91. Long transverse groove; 92. Inclined groove; 93. Short transverse groove; 10. Slide rail. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] Example 1: As Figures 1 to 3 As shown in the embodiment of the present invention, a stainless steel bolt heat treatment device includes a base plate 1, on which a support base 2 is fixedly installed. Two sets of pulleys 3 are rotatably installed at the top of the support base 2, and both sets of pulleys 3 are rotatably connected to a synchronous belt 4. Two sets of receiving parts 5 are fixedly installed on the synchronous belt 4, and the receiving parts 5 are fixedly connected to guide blocks 6. The guide blocks 6 are slidably connected to a slide rail 10, and a feeding mechanism 7 is installed on the slide rail 10. A heating mechanism 8 for heating stainless steel bolts is installed on the support base 2. The feeding mechanism 7 includes a horizontal arm 701, which is fixedly installed on the slide rail 10. A pin 702 is fixedly connected to one end of the cross arm 701, a heat insulation plate 703 is fixedly connected to the other end of the cross arm 701, and a material feeding seat 704 is fixedly connected to the heat insulation plate 703. The material feeding seat 704 is used to hold stainless steel bolts. Two sets of guide grooves 9 are symmetrically opened on the support base 2. The two sets of pins 702 are respectively located in the two sets of guide grooves 9. The guide grooves 9 are composed of a set of long transverse grooves 91, two sets of oblique grooves 92, and two sets of short transverse grooves 93. The support base 2 is also symmetrically opened with two sets of rectangular grooves 21. Guide posts 22 are fixedly installed in the rectangular grooves 21, and guide blocks 6 are slidably connected to guide posts 22.

[0025] Specifically, attached Figure 1The middle arrow indicates the feeding point. In the initial state, one set of feeding mechanisms 7 is located at the feeding point, and the feeding seat 704 on the other set of feeding mechanisms 7 is located inside the heating mechanism 8. When the stainless steel bolts need to be heat-treated, the stainless steel bolts are placed on the feeding seat 704 on the feeding mechanism 7 at the feeding point. Then, a set of pulleys 3 are driven by a motor to rotate. The pulleys 3 drive the synchronous belt 4, causing the synchronous belt 4 to move in a circular motion around the two sets of pulleys 3. At the same time, the synchronous belt 4 drives the two sets of receiving parts 5 to move towards each other. The receiving parts 5 drive the guide block 6 to slide along the guide post 22. The guide block 6 drives the feeding mechanism 7 to move. During this process, the two sets of pins 702 first move along the opposite direction. A set of short transverse grooves 93 slides, causing two sets of feeding seats 704 to move towards each other on the same straight line. Simultaneously, the feeding mechanism 7 with stainless steel bolts moves towards the heating mechanism 8, while the other feeding mechanism 7 disengages from the heating mechanism 8. This continues until the two sets of pins 702 move into the corresponding set of inclined grooves 92. Guided by the inclined grooves 92, the pins 702 drive the horizontal arm 701, slide rail 10, heat insulation plate 703, and feeding seats 704 to move to one side until the pins 702 slide into the long transverse groove 91. During the sliding of the pins 702 along the long transverse groove 91, the two sets of feeding seats 704 do not move towards each other on a straight line, causing the two sets of feeding seats 704 to... The components are staggered without interfering with each other. Then, the pin 702 slides into another set of inclined grooves 92. Guided by these grooves, the feeding seat 704 containing the stainless steel bolts faces the heating mechanism 8, while the other feeding seat 704 faces the loading point. When the pin 702 slides from the other set of inclined grooves 92 into the other set of short transverse grooves 93, the feeding seat 704 containing the stainless steel bolts will enter the heating mechanism 8, and the heat insulation plate 703 will block the port of the heating mechanism 8. The other feeding seat 704 moves to the loading point. During the heat treatment process of the stainless steel bolts by the heating mechanism 8, if there is heat-treated stainless steel on the other feeding seat 704... For steel bolts, workers can remove the heat-treated stainless steel bolts and place the stainless steel bolts to be heat-treated on another set of feeding seats 704. After the heating mechanism 8 heat-treats the stainless steel bolts, the above operation is repeated. Compared with the prior art, during the heat treatment of the stainless steel bolts on one set of feeding seats 704, the heating mechanism 8 can simultaneously remove the heat-treated stainless steel bolts on the other set of feeding seats 704 and place the stainless steel bolts to be heat-treated on the other set of feeding seats 704. This allows the removal and heat treatment of stainless steel bolts to be carried out simultaneously, saving the removal and placement time of stainless steel bolts and improving the heat treatment efficiency of stainless steel bolts.

[0026] Example 2: Figures 4 to 7As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the feeding seat 704 includes a fixed seat 7041, one end of the fixed seat 7041 is fixedly connected to a heat insulation plate 703, a movable seat 7042 is installed on the fixed seat 7041, two sets of second feeding frames 7045 are symmetrically and movably inserted into the movable seat 7042, and a first feeding frame 7044 is movably inserted between the two sets of second feeding frames 7045. The first feeding frame 7044 and the second feeding frame are both used to place stainless steel bolts. Both sides of 7045 are provided with receiving grooves 51, and both sets of receiving grooves 51 are slidably connected to receiving blocks 52. One set of receiving blocks 52 is fixedly connected to the side wall of the first feeding frame 7044, and the other set of receiving blocks 52 is fixedly connected to the inner wall of the movable seat 7042. A pressure rod 7043 for pushing the first feeding frame 7044 is movably inserted into the fixed seat 7041. The upper end of the pressure rod 7043 is attached to the bottom of the first feeding frame 7044. The support seat 2 is provided with an inclined surface 23 for pushing the pressure rod 7043.

[0027] Specifically, since the stainless steel bolts are stacked on the feeding seat 704, the stainless steel bolts on the outside and the stainless steel bolts on the inside have uneven contact with the heat source inside the heating mechanism 8, resulting in low heating efficiency of the stainless steel bolts. In the initial state, the first feeding frame 7044 and the second feeding frame 7045 are placed flush with each other inside the movable seat 7042, as shown in the attached diagram. Figure 4 As shown, during the process of placing stainless steel bolts into the feeding seat 704, the first feeding frame 7044, the second feeding frame 7045, and the area between the second feeding frame 7045 and the movable seat 7042 are filled with stainless steel bolts. As the feeding seat 704 moves towards the heating mechanism 8, the lower end of the bearing rod 7043 on the feeding seat 704 slides along the upper surface of the support seat 2 until the lower end of the bearing rod 7043 slides to the inclined surface 23. The bearing rod 7043 is pushed by the inclined surface 23, causing the bearing rod 7043 to push the first feeding frame 7044 upward. At the same time, the two sets of receiving blocks 52 move along with the first feeding frame. 7044 moves together, and the two sets of receiving blocks 52 slide along the two sets of receiving grooves 51 respectively until the receiving blocks 52 push against the upper end of the receiving grooves 51. By pushing against the upper end of the receiving grooves 51, the first feeding frame 7044 drives the two sets of second feeding frames 7045 to move upward together. During this process, the receiving blocks 52 fixed on the inner wall of the movable seat 7042 slide along the receiving grooves 51 on the second feeding frame 7045 until the lower end of the pressure rod 7043 is offset from the inclined surface 23, so that the first feeding frame 7044 and the second feeding frame 7045 are distributed in a stepped manner into the heating mechanism 8, as shown in the attached figure. Figure 5As shown, the stainless steel bolts stacked on the feeding seat 704 are divided into five parts by the stepped distribution of the first feeding frame 7044 and the second feeding frame 7045. The five parts of stainless steel bolts will individually contact the heat source inside the heating mechanism 8, which makes the heat transfer efficiency of the stainless steel bolts higher, the temperature more uniform, and the heating time shorter, thereby improving the heat treatment efficiency of the stainless steel bolts.

[0028] like Figures 8 to 10 As shown, the feeding mechanism 7 also includes a limiting mechanism 705. The limiting mechanism 705 includes a guide rod 7051, which passes through the cross arm 701, the heat insulation plate 703, and the fixed seat 7041 in sequence. A spring 7053 is sleeved on one end of the guide rod 7051, and a hook 7052 is fixedly connected to the other end of the guide rod 7051. The fixed seat 7041 has a placement groove 41, and the movable seat 7042 is inserted into the placement groove 41. The bottom of the movable seat 7042 has a movable groove 42, and one side of the movable groove 42 has a slot 43 for engaging the hook 7052. Two sets of baffles 24 for pushing the guide rod 7051 are symmetrically installed on the support seat 2.

[0029] Specifically, the above-mentioned process requires removing the heat-treated stainless steel bolts one by one from the feeding seat 704 before the next batch of stainless steel bolts can be placed on the feeding seat 704. This method of taking and placing the bolts is inefficient and affects the heat treatment efficiency of the stainless steel bolts. When the feeding seat 704 is located at the feeding point, the end of the pressure rod 7043 is pushed by a set of baffles 24, causing the spring 7053 to be in a compressed state. The hook 7052 does not engage with the slot 43, so the heat-treated stainless steel bolts, along with the movable seat 7042, the first feeding frame 7044, and the second feeding frame 7045, can be directly taken out from the placement slot 41. Then, another set of movable seats 7042, the first feeding frame 7044, and the second feeding frame 7045 with stainless steel bolts placed on them can be directly placed into the placement slot 41, realizing the rapid picking and placing of stainless steel bolts. Afterwards, when the feeding seat 704 moves towards the heating mechanism 8, the baffle 24 will release the push on the end of the pressure rod 7043. Under the rebound force of the spring 7053, the hook 7052 will engage with the slot 43, thereby limiting the movable seat 7042. Through the coordination of the limiting mechanism 705, the slot 43, and the slot 43, the movable seat 7042 can be automatically limited and unlocked, which facilitates the quick picking and placing of the movable seat 7042, the first feeding frame 7044, and the second feeding frame 7045 by the staff, directly speeding up the efficiency of picking and placing stainless steel bolts.

[0030] Working principle: Stainless steel bolts are placed on the feeding seat 704 of the feeding mechanism 7 at the feeding point. Then, a set of pulleys 3 are driven by a motor to rotate. The pulleys 3 drive the synchronous belt 4, causing the synchronous belt 4 to move in a circular motion around the two sets of pulleys 3. At the same time, the synchronous belt 4 drives the two sets of receiving parts 5 to move towards each other. The receiving parts 5 drive the guide block 6 to slide along the guide post 22. The guide block 6 drives the feeding mechanism 7 to move. During this process, the two sets of pins 702 first slide along the corresponding set of short transverse grooves 93, causing the two sets of pins 702 to move towards each other. The feeding seats 704 move towards each other on the same straight line, while the feeding mechanism 7 with stainless steel bolts moves towards the heating mechanism 8, and the other feeding mechanism 7 disengages from the heating mechanism 8, until the two sets of pins 702 move into the corresponding set of inclined grooves 92. Guided by the inclined grooves 92, the pins 702 drive the horizontal arm 701, slide rail 10, heat insulation plate 703, and feeding seats 704 to move to one side until the pins 702 slide into the long transverse groove 91. The pins 702 move along the long transverse groove. During the sliding process, the two sets of feeding seats 704 do not move towards each other on a straight line, allowing them to be staggered without interference. Then, the pin 702 slides into another set of inclined grooves 92. Guided by the other set of inclined grooves 92, the feeding seat 704 containing the stainless steel bolts faces the heating mechanism 8, while the other set of feeding seats 704 faces the loading point. When the pin 702 slides from the other set of inclined grooves 92 into the other set of short transverse grooves 93, the feeding seat 704 containing the stainless steel bolts... 4 will enter the heating mechanism 8, and the heat insulation plate 703 will block the port of the heating mechanism 8. Meanwhile, another set of feeding seats 704 will move to the feeding point. When the heating mechanism 8 is heat treating the stainless steel bolts, if there are heat-treated stainless steel bolts on the other set of feeding seats 704, the workers can remove the heat-treated stainless steel bolts and place the stainless steel bolts to be heat-treated on the other set of feeding seats 704. After the heating mechanism 8 heats the stainless steel bolts, the above operation will be repeated. As the feeding seat 704 moves toward the heating mechanism 8, the lower end of the pressure rod 7043 on the feeding seat 704 slides along the upper surface of the support seat 2 until the lower end of the pressure rod 7043 slides to the inclined surface 23. The pressure rod 7043 is pushed by the inclined surface 23, causing the pressure rod 7043 to push the first feeding frame 7044 upward. At the same time, the two sets of receiving blocks 52 move together with the first feeding frame 7044, and the two sets of receiving blocks 52 slide along the two sets of receiving grooves 51 respectively until the bearing... The receiving block 52 is pushed to the upper end of the receiving groove 51. By pushing the upper end of the receiving groove 51 through the receiving block 52, the first feeding frame 7044 drives the two sets of second feeding frames 7045 to move upward together. During this process, the receiving block 52 fixed on the inner wall of the movable seat 7042 slides along the receiving groove 51 on the second feeding frame 7045 until the lower end of the pressure rod 7043 is offset from the inclined surface 23, so that the first feeding frame 7044 and the second feeding frame 7045 are distributed in a stepped manner and enter the heating mechanism 8. When the feeding seat 704 is located at the feeding point, the end of the pressure rod 7043 is pushed by a set of baffles 24, causing the spring 7053 to be in a compressed state. The hook 7052 does not engage with the slot 43, so the heat-treated stainless steel bolts, together with the movable seat 7042, the first feeding frame 7044, and the second feeding frame 7045, can be directly taken out from the placement slot 41. Then, another set of movable seats 7042, the first feeding frame 7044, and the second feeding frame 7045 with stainless steel bolts placed on them can be directly placed into the placement slot 41 to achieve quick picking and placing of stainless steel bolts. After picking and placing is completed, when the feeding seat 704 moves towards the heating mechanism 8, the baffles 24 will release the push on the end of the pressure rod 7043. Under the rebound force of the spring 7053, the hook 7052 engages with the slot 43 to limit the movable seat 7042.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat treatment device for stainless steel bolts, comprising a base plate (1), characterized in that: A support base (2) is fixedly installed on the base plate (1). Two sets of pulleys (3) are rotatably installed on the top of the support base (2). Both sets of pulleys (3) are rotatably connected to a synchronous belt (4). Two sets of receiving parts (5) are fixedly installed on the synchronous belt (4). The receiving parts (5) are fixedly connected to a guide block (6). The guide block (6) is slidably connected to a slide rail (10). A feeding mechanism (7) is installed on the slide rail (10). A heating mechanism (8) for heating stainless steel bolts is installed on the support base (2). The feeding mechanism (7) includes a horizontal arm (701), which is fixedly mounted on the slide rail (10); A pin (702) is fixedly connected to one end of the cross arm (701); A heat insulation plate (703) is fixedly connected to the other end of the cross arm (701); A material feeding seat (704) is fixedly connected to the heat insulation plate (703), and the material feeding seat (704) is used to hold stainless steel bolts; The support base (2) is symmetrically provided with two sets of guide grooves (9), and the two sets of pins (702) are respectively located in the two sets of guide grooves (9). The guide grooves (9) are composed of a set of long transverse grooves (91), two sets of oblique grooves (92), and two sets of short transverse grooves (93).

2. The stainless steel bolt heat treatment equipment according to claim 1, characterized in that: The support base (2) is also symmetrically provided with two sets of rectangular grooves (21), and guide posts (22) are fixedly installed in the rectangular grooves (21). The guide block (6) is slidably connected to the guide posts (22).

3. The stainless steel bolt heat treatment equipment according to claim 2, characterized in that: The material feeding seat (704) includes a fixed seat (7041), one end of which is fixedly connected to the heat insulation plate (703). A movable seat (7042) is installed on the fixed seat (7041); Two sets of second feeding frames (7045) are symmetrically and movably inserted into the movable seat (7042); A first feed frame (7044) is movably inserted between two sets of second feed frames (7045), and both the first feed frame (7044) and the second feed frame (7045) are used to place stainless steel bolts.

4. The stainless steel bolt heat treatment equipment according to claim 3, characterized in that: The second feeding frame (7045) has receiving grooves (51) on both sides. Both sets of receiving grooves (51) are slidably connected to receiving blocks (52). One set of receiving blocks (52) is fixedly connected to the side wall of the first feeding frame (7044), and the other set of receiving blocks (52) is fixedly connected to the inner wall of the movable seat (7042).

5. The stainless steel bolt heat treatment equipment according to claim 4, characterized in that: A pressure rod (7043) for pushing the first feeding frame (7044) is movably inserted into the fixed base (7041), and the upper end of the pressure rod (7043) is attached to the bottom of the first feeding frame (7044).

6. The stainless steel bolt heat treatment equipment according to claim 5, characterized in that: The support base (2) is provided with an inclined surface (23) for pushing the pressure rod (7043).

7. The stainless steel bolt heat treatment equipment according to claim 6, characterized in that: The feeding mechanism (7) also includes a limiting mechanism (705), which includes a guide rod (7051) that passes through the cross arm (701), the heat insulation plate (703), and the fixed seat (7041) in sequence. A spring (7053) is sleeved at one end of the guide rod (7051); The hook (7052) is fixedly connected to the other end of the guide rod (7051).

8. The stainless steel bolt heat treatment equipment according to claim 7, characterized in that: The fixed base (7041) is provided with a placement slot (41), and the movable base (7042) is inserted into the placement slot (41).

9. A stainless steel bolt heat treatment equipment according to claim 8, characterized in that: The bottom of the movable seat (7042) is provided with a movable groove (42), and a slot (43) for engaging the hook (7052) is provided on one side of the movable groove (42).

10. A heat treatment device for stainless steel bolts according to claim 9, characterized in that: Two sets of baffles (24) for pushing the guide rod (7051) are symmetrically installed on the support base (2).

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