Box-type furnace for metal heat treatment

Abstract

The utility model relates to the technical field of metal processing, and discloses a metal heat treatment box-type furnace which comprises a base, a box-type furnace body is fixedly mounted at the top of the base, a heating device is fixedly mounted in the box-type furnace body, and a feeding device is arranged between the base and the box-type furnace body. The feeding device comprises a stepping motor fixedly mounted in the base, a lead screw is fixedly mounted on an output shaft of the stepping motor, a threaded sleeve is in threaded connection with the outer wall of the lead screw, a connecting rod is fixedly connected to the upper side of the threaded sleeve and extends to the upper side of the base, and the feeding device is fixedly mounted on the base. A bottom plate is fixedly connected to the side, close to the box-type furnace body, of the connecting rod, located on the upper side of the base and penetrates into the box-type furnace body. According to the box-type furnace for metal heat treatment, feeding and discharging are synchronously carried out, the feeding efficiency is higher, the machining continuity is greatly enhanced, the machining efficiency is improved, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing, and particularly relates to a box furnace for metal heat treatment. Background Art

[0002] A box furnace is a box-shaped heating furnace. During the entire heating process of heating, insulating, and cooling the products, the products remain stationary, and feeding and discharging are carried out through a single door or slot. It is also called an intermittent production furnace.

[0003] For example, the prior art with the publication number CN218561536U discloses a high-temperature box furnace for heat treatment, including a box furnace assembly. The box furnace assembly includes a box body, an electric furnace wire fixed on the inner wall of the inner cavity of the box body, a backing plate arranged on the inner wall of the box body, a guide frame fixed on the outer wall of the opening of the box body, a guide groove opened on the inner wall of the guide frame, and a box door inserted into the guide groove; a lifting assembly, including support plates symmetrically fixed on the top of the box body, connecting rods with both ends rotatably connected to the inner walls of the support plates, wire winding wheels symmetrically fixed on the connecting rods, steel wires with one end fixed on the wire winding wheels and the other end fixed on the bottom end of the box door, a first belt pulley fixed at one end of the connecting rod, a motor arranged on the top of the box body, a second belt pulley fixed on the motor, and a transmission belt wound around the first belt pulley and the second belt pulley; which can replace manual opening of the box door of the high-temperature box furnace and avoid scalding the skin by high temperature.

[0004] In the process of implementing the present application, the inventor found that at least the following problems exist in this technology. Since the feeding and discharging of the box furnace rely only on a single box door, the feeding and discharging cannot be carried out synchronously, the coherence of the steps is poor, some time will be wasted during material replacement, the processing efficiency of metal products is reduced, so a box furnace for metal heat treatment is proposed to solve the problems mentioned above. Summary of the Utility Model

[0005] In view of the deficiencies of the prior art, the present application provides a box furnace for metal heat treatment, which has the advantages of improving processing efficiency, etc., and solves the problems that since the feeding and discharging of the box furnace rely only on a single box door, the feeding and discharging cannot be carried out synchronously, the coherence of the steps is poor, some time will be wasted during material replacement, and the processing efficiency of metal products is reduced.

[0006] To sum up, the present application provides the following technical solution: A box furnace for metal heat treatment, including a base, a box furnace main body is fixedly installed on the top of the base, a heating device is fixedly installed inside the box furnace main body, and a feeding device is arranged between the base and the box furnace main body;

[0007] The feeding device includes a stepping motor fixedly installed inside the base. A lead screw is fixedly installed on the output shaft of the stepping motor. A threaded sleeve is threadedly connected to the outer wall of the lead screw. A connecting rod is fixedly connected to the upper side of the threaded sleeve. The connecting rod extends to the upper side of the base, and a bottom plate is fixedly connected to one side of the connecting rod close to the box furnace body. The bottom plate is located on the upper side of the base and penetrates into the interior of the box furnace body. A heat insulation plate is fixedly connected to the top of the bottom plate. The number of the heat insulation plates is set to three, and a storage rack is fixedly connected between every two adjacent heat insulation plates.

[0008] By adopting the above technical solution in this application, the storage racks are provided to place the metal products to be processed. Since a storage rack is fixedly connected between every two adjacent heat insulation plates, there are two groups of storage racks in total, and metal products can be placed on both groups of storage racks. When one storage rack is inside the box furnace body, the heating device inside the box furnace body can heat-treat the metal products on this storage rack. During the heat treatment process, the metal products to be processed can be pre-placed on the storage rack located outside the box furnace body. After the treatment inside the box furnace body is completed, the bottom plate can be driven to move through the transmission of the stepping motor, the lead screw, the threaded sleeve and the connecting rod, so as to adjust the positions of the two storage racks, thereby being able to move the processed metal products out of the box furnace body and move the metal products to be processed into the box furnace body, realizing the synchronous feeding and discharging.

[0009] Further, one end of the lead screw away from the stepping motor is in interference fit with a bearing, and the bearing is fixedly installed inside the base.

[0010] The beneficial effect of adopting the above further solution is that the bearing provided can provide rotational support for the lead screw, enabling the lead screw to maintain stable rotation.

[0011] Further, a sliding seat is fixedly installed inside the base. A slider is slidably connected to the inner side of the sliding seat, and the slider is fixedly connected to the bottom of the threaded sleeve.

[0012] Further, a sliding groove is opened on the inner side of the sliding seat, and the slider is adapted to the sliding groove.

[0013] The beneficial effect of adopting the above further solution is that the cooperation of the slider and the sliding seat can guide the threaded sleeve, improving the structural stability.

[0014] Further, a movable opening is opened on the upper surface of the base. The movable opening is arranged in a long strip shape, and the connecting rod penetrates into the inner side of the movable opening.

[0015] The beneficial effect of adopting the above further solution is that the opened movable opening facilitates the movement of the connecting rod and is convenient for adjusting the position of the connecting rod.

[0016] Furthermore, the thickness of the heat insulation board is greater than the wall thickness of the box furnace body. Through openings are provided on both the left and right sides of the box furnace body, and the heat insulation board and the bottom plate as a whole are adapted to the through openings.

[0017] The beneficial effect of adopting the above further solution is that the through openings facilitate the movement of the bottom plate and the heat insulation board as a whole along the inner side of the box furnace body, facilitating the adjustment of the position of the storage rack.

[0018] Furthermore, rolling balls are rotatably connected to the inner bottom wall of the box furnace body, and the rolling balls are in rolling connection with the inner side of the bottom plate.

[0019] The beneficial effect of adopting the above further solution is that the setting of the rolling balls can ensure the supporting force for the bottom plate, and at the same time greatly reduce the friction between the bottom plate and the box furnace body, facilitating the adjustment of the position of the bottom plate.

[0020] Furthermore, rolling grooves are provided on the bottom wall of the bottom plate, and the rolling grooves are adapted to the rolling balls. The number of the rolling balls is set to two.

[0021] The beneficial effect of adopting the above further solution is that the cooperation between the rolling balls and the rolling grooves can guide the bottom plate, improving the stability of the structure.

[0022] Compared with the prior art, the present application provides a box furnace for metal heat treatment, having the following beneficial effects:

[0023] In this box furnace for metal heat treatment, the storage rack is provided to place the metal products to be processed. Since storage racks are fixedly connected between every two adjacent heat insulation boards, there are two groups of storage racks in total, and metal products can be placed on both groups of storage racks. When one storage rack is inside the box furnace body, the heating device inside the box furnace body can be used to perform heat treatment on the metal products on this storage rack. During the heat treatment process, metal products to be processed can be pre-placed on the storage rack located outside the box furnace body. After the processing inside the box furnace body is completed, the cooperation of the stepping motor, the lead screw, the threaded sleeve and the connecting rod can drive the bottom plate to move, thereby adjusting the positions of the two storage racks, so that the processed metal products can be moved out of the box furnace body, and the metal products to be processed can be moved into the box furnace body, realizing the synchronous feeding and discharging, with higher feeding efficiency, greatly enhancing the continuity of processing, improving the processing efficiency, and having good practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a structural sectional view of the present application;

[0025] Figure 2 is the present application Figure 1 an enlarged structural schematic diagram of the shown A;

[0026] Figure 3 It is the front view of the structure of this application.

[0027] Explanation of reference numerals:

[0028] 1. Base; 2. Box furnace body; 3. Heating device; 4. Stepper motor; 5. Lead screw; 6. Threaded sleeve; 7. Connecting rod; 8. Bottom plate; 9. Heat insulation plate; 10. Storage rack; 11. Slide block; 12. Slide seat; 13. Ball; 14. Movable opening; 15. Rolling groove. Specific implementation mode

[0029] Please refer to Figure 1 , a box furnace for metal heat treatment, including a base 1, a box furnace body 2 is fixedly installed on the top of the base 1, and a heating device 3 is fixedly installed inside the box furnace body 2.

[0030] Please refer to Figures 1-3 , in this embodiment, a feeding device is arranged between the base 1 and the box furnace body 2. The feeding device includes a stepper motor 4 fixedly installed inside the base 1, and a lead screw 5 is fixedly installed on the output shaft of the stepper motor 4. Among them, one end of the lead screw 5 far from the stepper motor 4 is in interference fit with a bearing, and the bearing is fixedly installed inside the base 1. By arranging the bearing, rotational support can be provided for the lead screw 5, so that the lead screw 5 can maintain stable rotation.

[0031] In this embodiment, a threaded sleeve 6 is threadedly connected to the outer wall of the lead screw 5, and a connecting rod 7 is fixedly connected to the upper side of the threaded sleeve 6. The connecting rod 7 extends to the upper side of the base 1. Among them, a movable opening 14 is formed on the upper surface of the base 1, and the movable opening 14 is arranged in a long strip shape. The connecting rod 7 penetrates to the inner side of the movable opening 14. By arranging the movable opening 14, it is convenient for the connecting rod 7 to move, and it is convenient to adjust the position of the connecting rod 7. In addition, a slide seat 12 is fixedly installed inside the base 1, a slide block 11 is slidably connected to the inner side of the slide seat 12, and the slide block 11 is fixedly connected to the bottom of the threaded sleeve 6. Among them, a sliding groove is formed on the inner side of the slide seat 12, and the slide block 11 is adapted to the sliding groove. The cooperation of the slide block 11 and the slide seat 12 can guide the threaded sleeve 6 and improve the stability of the structure.

[0032] In this embodiment, a bottom plate 8 is fixedly connected to the side of the connecting rod 7 close to the box furnace body 2. The bottom plate 8 is located on the upper side of the base 1 and penetrates into the inside of the box furnace body 2. A heat insulation plate 9 is fixedly connected to the top of the bottom plate 8. The number of the heat insulation plates 9 is set to three, and a storage rack 10 is fixedly connected between every two adjacent heat insulation plates 9. Among them, the thickness of the heat insulation plate 9 is greater than the wall thickness of the box furnace body 2. Through openings are formed on both the left and right sides of the box furnace body 2, and the heat insulation plate 9 and the bottom plate 8 as a whole are adapted to the through openings. By arranging the through openings, it is convenient for the bottom plate 8 and the heat insulation plate 9 as a whole to move along the inner side of the box furnace body 2, and it is convenient to adjust the position of the storage rack 10.

[0033] Please refer to Figure 2 Figure 2 In this embodiment, a ball 13 is rotatably connected to the inner bottom wall of the box furnace body 2, and the ball 13 is in rolling connection with the inner side of the bottom plate 8. By providing the ball 13, the supporting force for the bottom plate 8 can be ensured, and at the same time, the friction between the bottom plate 8 and the box furnace body 2 is greatly reduced, facilitating the adjustment of the position of the bottom plate 8. Among them, a rolling groove 15 is formed in the bottom wall of the bottom plate 8, and the rolling groove 15 is adapted to the ball 13. The number of balls 13 is set to two. The cooperation of the ball 13 and the rolling groove 15 can guide the bottom plate 8 and improve the structural stability.

[0034] The working principle of the above embodiment is as follows:

[0035] In this box furnace for metal heat treatment, the metal products to be processed are placed on the storage rack 10. When one of the storage racks 10 is inside the box furnace body 2, the heating device 3 inside the box furnace body 2 can be used to perform heat treatment on the metal products on this storage rack 10. During the heat treatment process, the metal products to be processed can be pre-placed on the storage rack 10 outside the box furnace body 2. After the processing inside the box furnace body 2 is completed, by starting the stepping motor 4 to drive the screw rod 5 to rotate, the screw rod 5 will drive the threaded sleeve 6 to move horizontally, and then drive the connecting rod 7 and the slider 11 to move synchronously, thereby driving the bottom plate 8 to move, so as to adjust the positions of the two storage racks 10, so that the processed metal products can be moved out of the box furnace body 2, and the metal products to be processed can be moved into the box furnace body 2.

Claims

1. A box-type furnace for heat treatment of metals, comprising a base (1), a box-type furnace body (2) fixedly mounted on the top of the base (1), a heating device (3) fixedly mounted inside the box-type furnace body (2), characterized in that: A feeding device is provided between the base (1) and the box-type furnace body (2); The feeding device comprises a stepper motor (4) fixedly mounted inside the base (1), a screw rod (5) fixedly mounted on the output shaft of the stepper motor (4), a threaded sleeve (6) threadedly connected to the outer wall of the screw rod (5), a connecting rod (7) fixedly connected to the upper side of the threaded sleeve (6), the connecting rod (7) extending to the upper side of the base (1), and a bottom plate (8) fixedly connected to the side of the connecting rod (7) close to the box-type furnace body (2), the bottom plate (8) is located on the upper side of the base (1) and penetrates into the interior of the box-type furnace body (2), a heat insulation board (9) fixedly connected to the top of the bottom plate (8), the number of the heat insulation boards (9) is set to three, and a storage rack (10) is fixedly connected between every two adjacent heat insulation boards (9).

2. A box-type furnace for metal heat treatment according to claim 1, characterized in that: One end of the lead screw (5) away from the stepping motor (4) is interference-fitted with a bearing, and the bearing is fixedly mounted inside the base (1).

3. A box-type furnace for metal heat treatment according to claim 1, characterized in that: A sliding seat (12) is fixedly installed inside the base (1), a sliding block (11) is slidably connected to the inner side of the sliding seat (12), and the sliding block (11) is fixedly connected to the bottom of the threaded sleeve (6).

4. A box-type furnace for metal heat treatment according to claim 3, characterized in that: A sliding groove is provided on the inner side of the sliding seat (12), and the sliding block (11) is adapted to fit the sliding groove.

5. The box-type furnace for metal heat treatment according to claim 1, characterized in that: The upper surface of the base (1) is provided with a movable opening (14), the movable opening (14) being arranged in a long strip shape, and the connecting rod (7) penetrates the inner side of the movable opening (14).

6. The box-type furnace for metal heat treatment according to claim 1, characterized in that: The thickness of the heat insulation board (9) is greater than the wall thickness of the box-type furnace body (2); both left and right sides of the box-type furnace body (2) are provided with through openings, and the heat insulation board (9) and the bottom plate (8) are integrally adapted to the through openings.

7. The box-type furnace for metal heat treatment according to claim 1, characterized in that: A ball bearing (13) is rotatably connected to the inner bottom wall of the box-type furnace body (2), and the ball bearing (13) is rollingly connected to the inner side of the bottom plate (8).

8. A box-type furnace for heat treatment of metals according to claim 7, characterized in that: A rolling groove (15) is provided on the bottom wall of the bottom plate (8), the rolling groove (15) being adapted to fit the balls (13), and the number of the balls (13) is set to two.

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