Annealing furnace for casting

Abstract

The utility model belongs to the technical field of casting processing, and particularly relates to an annealing furnace for casting, which comprises an annealing outer box, a medium cavity for filling annealing medium is arranged on the inner side of the annealing outer box, an annealing inner furnace is mounted on the inner side of the annealing outer box, a guide frame is mounted at the top of the annealing outer box, and a positioning plate is movably connected to the inner side of the guide frame. A lifting piece used for achieving lifting movement of the positioning plate is further fixedly installed on the guide frame, a limiting groove is formed in the side, close to the medium cavity, of the guide frame, and sliding blocks are movably connected to the two ends of the positioning plate. According to the annealing furnace for casting, the sliding blocks are driven by the driving piece to get close to each other in the positioning plate, an annealing casting is fixed below the limiting groove through the clamping blocks with rough surfaces and high temperature resistance, the positioning plate gets close to the annealing inner furnace in the guide frame through movement of the lifting piece, and the casting is conveyed into the annealing inner furnace; therefore, the probability that the casting collides with the inner wall of the annealing inner furnace during moving is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to foundry technology field especially relates to a annealing furnace for casting. BACKGROUND

[0002] Annealing furnace is mainly used in the annealing procedure of some objects to be annealed, and is a kind of metal heat treatment process by slowly heating metal to a certain temperature, keeping enough time, and then cooling at appropriate speed (usually slow cooling, sometimes controlled cooling), and annealing in the casting process is to improve the mechanical properties of castings, reduce internal stress and improve dimensional stability.

[0003] The existing annealing method is mostly to send castings into the annealing furnace for annealing treatment, which will exist the following problems in actual operation:

[0004] When sending castings into or taking out the annealing furnace, it is necessary to manually take tongs to clamp the castings, which is easy to produce looseness in the clamping process, causing the castings to impact the furnace wall, damaging the inner wall of the annealing furnace and affecting normal use. TECHNICAL CONTENT

[0005] In order to overcome the defects of the prior art pointed out above, the present inventors have made in-depth research and, after a lot of creative labor, completed the present utility model.

[0006] Specifically, the technical problem to be solved by the present utility model is to provide an annealing furnace for casting to solve the technical problem that the current device needs to manually take tongs to clamp castings when sending or taking out the castings into or out of the annealing furnace, which is easy to produce looseness in the clamping process, causing the castings to impact the furnace wall, damaging the inner wall of the annealing furnace and affecting normal use.

[0007] To solve the above technical problems, the present utility model provides the following technical solutions:

[0008] An annealing furnace for casting, comprising an annealing outer box, a medium cavity for filling annealing medium is arranged on the inner side of the annealing outer box, an annealing inner furnace is fixedly installed on the inner side of the annealing outer box and in the medium cavity, a guide frame is fixedly installed on the top of the annealing outer box and above the medium cavity, a positioning plate is movably connected to the inner side of the guide frame, and a lifting piece for lifting and moving the positioning plate is also fixedly installed on the guide frame.

[0009] The inner side of the guide frame is provided with a guide groove for limiting the movement of the positioning plate, the side of the guide frame close to the medium cavity is provided with a limiting groove, and the two ends of the positioning plate are movably connected with sliding blocks, the sliding blocks extending into one end of the positioning plate are fixedly installed with clamping blocks for limiting the annealing casting, the clamping blocks are symmetrically distributed at the two ends of the limiting groove, and the top of the positioning plate is further provided with a driving member for driving the sliding blocks to move.

[0010] As an improved technical solution, the driving member comprises a double-shaft motor fixedly installed on the top of the positioning plate, the output shaft of the double-shaft motor is connected with a double-shaft screw, the two ends of the double-shaft screw are threadedly connected with the sliding blocks, the two ends of the double-shaft screw are symmetrically distributed with first assembly seats, and the double-shaft screw is distributed in parallel with the positioning plate through the first assembly seats.

[0011] As an improved technical solution, the lifting member comprises a lifting block fixedly connected to the end of the positioning plate extending into the guide groove of the guide frame, the outer side of the annealing outer box is fixedly installed with a rotary motor, the output shaft of the rotary motor is drivingly connected with a threaded shaft, and the threaded shaft is threadedly connected with the end of the lifting block away from the positioning plate.

[0012] As an improved technical solution, the end of the threaded shaft away from the rotary motor is installed with a second assembly seat, the second assembly seat is fixedly installed on the guide frame and located above the lifting block, and the threaded shaft is distributed perpendicularly with the positioning plate through the second assembly seat.

[0013] As an improved technical solution, the inner side of the annealing outer box is fixedly installed with a heat-conducting plate, the annealing inner furnace is fixedly installed in the medium cavity through the heat-conducting plate, the top of the heat-conducting plate is fixedly installed with equidistantly arranged heat-conducting columns, and the end of the heat-conducting column away from the heat-conducting plate and located outside the annealing inner furnace is installed with a heat-conducting ring.

[0014] As an improved technical solution, the annealing outer box is provided with a temperature control cavity below the heat-conducting plate, the outer side of the annealing outer box is provided with an air inlet communicated with the temperature control cavity, and the side of the annealing outer box away from the air inlet is provided with a ventilation window communicated with the temperature control cavity.

[0015] As an improved technical solution, the outer side of the annealing outer box is further fixedly installed with a feeding hopper, the end of the feeding hopper close to the annealing outer box extends into the temperature control cavity, and the bottom of the annealing outer box is provided with a slag discharge pipe communicated with the temperature control cavity.

[0016] After the above technical scheme is adopted, the beneficial effects of the present application are as follows:

[0017] 1. The utility model discloses a drive element drives the slider to be close to each other in the positioning board, and fixes the annealing casting under the limiting groove through the clamping block of rough surface and high temperature resistance, through the movement of the lifting piece, make the positioning board in the guide frame close to the annealing inner furnace, and send the casting to the annealing inner furnace, thereby reduce the probability of collision when the casting is moved, with the inner wall of the annealing inner furnace.

[0018] 2. The utility model discloses a rotating motor drive screw shaft rotation makes the lifting piece of screw connection drive positioning board to lift, thereby guarantee the angle of fixed casting when the positioning board is lifted in the annealing inner furnace, reduce the risk of collision.

[0019] 3. The utility model discloses the air inlet is connected with external air source cooperation ventilation window, improves the air flow in the temperature control cavity, realizes the temperature rise control in the annealing outer box.

[0020] 4. The utility model discloses the heat in the temperature control cavity is dispersed to the annealing medium in the medium cavity through the heat column of heat dissipation board, and further disperses the heat through the heat dissipation ring, guarantees the temperature in the annealing inner furnace to keep stable. DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings. Wherein:

[0022] Figure 1 It is the three-dimensional structure schematic diagram of the utility model casting's annealing furnace.

[0023] Figure 2 It is the back view angle structure schematic diagram of the utility model casting's annealing furnace.

[0024] Figure 3 It is the guide frame and positioning board assembly structure schematic diagram of the utility model casting's annealing furnace.

[0025] Figure 4 It is the positioning board and drive element assembly structure schematic diagram of the utility model casting's annealing furnace.

[0026] Figure 5 It is the annealing outer box section structure schematic diagram of the utility model casting's annealing furnace.

[0027] DRAWING MARK EXPLANATION:

[0028] 1, annealing outer box; 2, medium cavity; 3, annealing inner furnace; 4, guide frame; 5, positioning plate; 6, limiting groove; 7, sliding block; 8, clamping block; 9, double-shaft motor; 10, double-shaft screw rod; 11, first assembly seat; 12, lifting block; 13, rotary motor; 14, threaded shaft; 15, second assembly seat; 16, heat-conducting plate; 17, heat-conducting column; 18, heat-conducting ring; 19, temperature control cavity; 20, air inlet; 21, ventilation window; 22, feeding hopper; 23, slag discharge pipe; 24, liquid discharge pipe. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely 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 the present application.

[0030] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0031] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that three schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes are satisfied at the same time.

[0032] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0033] For example, Figures 1 to 5As shown in the drawings, the embodiment provides an annealing furnace for casting, which comprises an annealing outer box 1, the inner side of the annealing outer box 1 is provided with a medium cavity 2 for filling annealing medium, the inner side of the annealing outer box 1 and in the medium cavity 2 is fixedly installed with an annealing inner furnace 3, the top of the annealing outer box 1 and above the medium cavity 2 is fixedly installed with a guide frame 4, the inner side of the guide frame 4 is movably connected with a positioning plate 5, the guide frame 4 is further fixedly installed with a lifting piece for lifting and moving the positioning plate 5, the inner side of the guide frame 4 is provided with a guide groove for limiting the movement of the positioning plate 5, the side of the guide frame 4 close to the medium cavity 2 is provided with a limiting groove 6, and the two ends of the positioning plate 5 are movably connected with sliding blocks 7, the ends of the positioning plate 5 extending into the limiting groove 6 are fixedly installed with clamping blocks 8 for limiting the annealing casting, the clamping blocks 8 are symmetrically distributed at the two ends of the limiting groove 6, and the top of the positioning plate 5 is further provided with a driving piece for driving the sliding blocks 7 to move, the medium cavity 2 of the annealing outer box 1 can be filled with annealing medium for replicating casting annealing, and the annealing medium can be any one of oil, salt and water according to different use requirements, the annealing inner furnace 3 is made of high-temperature resistant material and is completely wrapped by the annealing medium, the casting can be naturally cooled and tempered in the annealing inner furnace 3, the positioning plate 5 can move above the annealing inner furnace 3 under the limitation of the guide frame 4, the limiting groove 6 can limit the position of the casting sent into the annealing inner furnace 3, so that the casting does not contact the inner wall of the annealing inner furnace 3 during the movement, and the clamping blocks 8 are made of cast iron with rough surface, so that the annealing casting can be fixed in the limiting groove 6 by reducing the distance between the sliding blocks 7.

[0034] The driving piece comprises a double-shaft motor 9 fixedly installed on the top of the positioning plate 5, the output shaft of the double-shaft motor 9 is connected with a double-shaft screw 10, the two ends of the double-shaft screw 10 are threadedly connected with the sliding blocks 7 respectively, the two ends of the double-shaft screw 10 are symmetrically provided with first assembly seats 11, the double-shaft screw 10 is parallelly distributed with the positioning plate 5 through the first assembly seats 11, and the double-shaft motor 9 can drive the sliding blocks 7 to do linear motion through the output shaft, so as to ensure the stability of the annealing casting.

[0035] The lifting piece comprises a lifting block 12 fixedly connected with the positioning plate 5 extending into the guide groove of the guide frame 4, the outer side of the annealing outer box 1 is fixedly installed with a rotary motor 13, the output shaft of the rotary motor 13 is drivingly connected with a threaded shaft 14, and the threaded shaft 14 is threadedly connected with the end of the lifting block 12 away from the positioning plate 5, the output shaft of the rotary motor 13 can drive the threaded shaft 14 to rotate, and when the threaded shaft 14 rotates, the lifting block 12 can drive the positioning plate 5 to move up and down above the annealing inner furnace 3 under the limitation of the guide groove of the guide frame 4.

[0036] The second assembly seat 15 is fixedly installed on the guide frame 4 and above the lifting block 12, the threaded shaft 14 is vertically distributed with the positioning plate 5 through the second assembly seat 15, and the threaded shaft 14 and the positioning plate 5 are vertically distributed to ensure that the angle of the positioning plate 5 is not easy to deviate when the annealing inner furnace 3 is lifted, and the risk of collision is reduced.

[0037] The heat conduction plate 16 is fixedly installed on the inner side of the annealing outer box 1, and the annealing inner furnace 3 is fixedly installed in the medium cavity 2 through the heat conduction plate 16, the top of the heat conduction plate 16 is fixedly installed with equidistantly arranged heat conduction columns 17, one end of the heat conduction column 17 away from the heat conduction plate 16 is fixedly installed with a heat conduction ring 18 on the outer side of the annealing inner furnace 3, the heat conduction plate 16 can ensure that the annealing inner furnace 3 is stable in the medium cavity 2, the heat conduction column 17 is made of metal material and can guide and disperse the heat of the heat conduction plate 16, and the heat conduction ring 18 can disperse the heat in the heat conduction column 17 again, while ensuring that the temperature in the annealing inner furnace 3 remains stable.

[0038] The temperature control cavity 19 is arranged in the annealing outer box 1 and below the heat conduction plate 16, the air inlet 20 is arranged on the outer side of the annealing outer box 1 and communicates with the temperature control cavity 19, and the ventilation window 21 is arranged on the side of the annealing outer box 1 away from the air inlet 20 and communicates with the temperature control cavity 19, the air inlet 20 can be connected with an external air source and cooperate with the ventilation window 21 to promote the air circulation in the temperature control cavity 19, thereby improving the heat conduction efficiency.

[0039] The feeding hopper 22 is also fixedly installed on the outer side of the annealing outer box 1, and one end of the feeding hopper 22 close to the annealing outer box 1 extends into the temperature control cavity 19, and the annealing outer box 1 is provided with the slag discharge pipe 23 which communicates with the temperature control cavity 19, the feeding hopper 22 can add combustion medium such as coal and fuel oil to the temperature control cavity 19 to increase the temperature, and the slag discharge pipe 23 can discharge the combustion products.

[0040] The liquid discharge pipe 24 which communicates with the medium cavity 2 is also arranged on the side of the annealing outer box 1 close to the ventilation window 21, the valve which controls the opening and closing of the liquid discharge pipe 24 is arranged, and after the annealing is completed, the annealing medium can be discharged from the medium cavity 2 through the liquid discharge pipe 24.

[0041] In use, the positioning plate 5 is lifted to the maximum height above the annealing inner furnace 3 through the lifting and lowering piece of the guide frame 4, and the casting needing annealing is moved and placed into the limiting groove 6 below the positioning plate 5 through manual use of the fire tongs, and the sliding blocks 7 are driven to move close to each other in the positioning plate 5 through the driving piece, and the annealing casting is fixed below the limiting groove 6 through the rough surface and high-temperature-resistant clamping blocks 8, the positioning plate 5 is guided to move close to the annealing inner furnace 3 under the limitation of the guide groove in the guide frame 4 through the movement of the lifting and lowering piece, and the casting is sent into the annealing inner furnace 3, and the annealing inner furnace 3 is completely covered through filling of the annealing medium in the medium cavity 2, and the casting in the annealing inner furnace 3 is annealed, thereby reducing the probability of collision of the casting with the inner wall of the annealing inner furnace 3 when the casting is moved, ensuring stable operation of the device, and through the rotation of the double-shaft screw rod 10 driven by the output shaft of the double-shaft motor 9, the sliding blocks 7 connected through threads drive the clamping blocks 8 to move linearly, the fixing of the casting is completed, and through the rotation of the threaded shaft 14 driven by the rotary motor 13, the lifting blocks 12 connected through threads drive the positioning plate 5 to lift and lower, thereby ensuring that the angle of the positioning plate 5 fixing the casting does not easily deviate when the positioning plate 5 is lifted and lowered in the annealing inner furnace 3, reducing the risk of collision, and in this process, the combustible fuel for heating is added to the temperature control cavity 19 through the feeding hopper 22, the temperature in the temperature control cavity 19 is increased, the air flow in the temperature control cavity 19 is increased through connection of the air inlet 20 with the external air source and cooperation of the ventilation window 21, the temperature in the annealing outer box 1 is controlled, and at the same time, the heat in the temperature control cavity 19 is dispersed into the annealing medium in the medium cavity 2 through the heat-conducting column 17 and the heat-conducting ring 18, and the temperature in the annealing inner furnace 3 is kept stable.

[0042] It should be understood that the use of these embodiments is only for the purpose of illustrating the present application and is not intended to limit the protection scope of the present application. In addition, it should also be understood that after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, and all these equivalent forms also fall within the protection scope defined by the claims attached to the present application.

Claims

1. An annealing furnace for casting, comprising an annealing outer casing (1), characterized in that: The inner side of the annealing outer box (1) is provided with a medium cavity (2) for filling annealing medium, the inner side of the annealing outer box (1) and in the medium cavity (2) is fixedly installed with an annealing inner furnace (3), the top of the annealing outer box (1) and above the medium cavity (2) is fixedly installed with a guide frame (4), the inner side of the guide frame (4) is movably connected with a positioning plate (5), and the guide frame (4) is further fixedly installed with a lifting piece for realizing the lifting movement of the positioning plate (5). The inner side of the guide frame (4) is provided with a guide groove for limiting the movement of the positioning plate (5), one side of the guide frame (4) close to the medium cavity (2) is provided with a limiting groove (6), and both ends of the positioning plate (5) are movably connected with a sliding block (7), one end of the sliding block (7) extending into the positioning plate (5) is fixedly installed with a clamping block (8) for limiting the annealing casting, the clamping blocks (8) are symmetrically distributed at both ends of the limiting groove (6), and the top of the positioning plate (5) is further provided with a driving piece for driving the sliding block (7) to move.

2. The annealing furnace for casting according to claim 1, characterized by: The driving piece comprises a double-shaft motor (9) fixedly installed on the top of the positioning plate (5), the output shaft of the double-shaft motor (9) is connected with a double-shaft screw (10), both ends of the double-shaft screw (10) are threadedly connected with the sliding block (7), and the double-shaft screw (10) is symmetrically distributed with a first assembly seat (11) at both ends.

3. The annealing furnace for casting according to claim 2, characterized in that: The lifting piece comprises a lifting block (12) fixedly connected to the positioning plate (5) extending into the guide groove of the guide frame (4), the outer side of the annealing outer box (1) is fixedly installed with a rotating motor (13), the output shaft of the rotating motor (13) is drivingly connected with a threaded shaft (14), and the threaded shaft (14) is threadedly connected with the lifting block (12) away from the positioning plate (5).

4. The annealing furnace for casting according to claim 3, characterized in that: The threaded shaft (14) is provided with a second assembly seat (15) away from the rotating motor (13), the second assembly seat (15) is fixedly installed on the guide frame (4) and above the lifting block (12), and the threaded shaft (14) is vertically distributed with the positioning plate (5) through the second assembly seat (15).

5. The annealing furnace for casting according to claim 1, characterized by: The inner side of the annealing outer box (1) is fixedly installed with a heat-conducting plate (16), the annealing inner furnace (3) is fixedly installed in the medium cavity (2) through the heat-conducting plate (16), the top of the heat-conducting plate (16) is fixedly installed with equidistantly arranged heat-conducting columns (17), one end of the heat-conducting column (17) away from the heat-conducting plate (16) and outside the annealing inner furnace (3) is installed with a heat-conducting ring (18).

6. The annealing furnace for casting according to claim 5, characterized in that: The annealing outer box (1) is provided with a temperature control cavity (19) below the heat-conducting plate (16), the outer side of the annealing outer box (1) is provided with an air inlet (20) in communication with the temperature control cavity (19), and the side of the annealing outer box (1) away from the air inlet (20) is provided with a ventilation window (21) in communication with the temperature control cavity (19).

7. The annealing furnace for casting according to claim 6, characterized in that: The outer side of the annealing outer box (1) is also fixedly provided with an inlet hopper (22), which extends to the temperature control cavity (19) near one end of the annealing outer box (1), and the bottom of the annealing outer box (1) is provided with a slag discharge pipe (23) which is in communication with the temperature control cavity (19).

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