Vacuum sintering furnace for magnetic materials

Abstract

The utility model relates to a magnetic material vacuum sintering furnace, and belongs to the technical field of magnetic material machining equipment, the magnetic material vacuum sintering furnace comprises a furnace body and a heating body arranged in the furnace body, the heating body is sleeved with a telescopic assembly, and the telescopic assembly comprises a first sleeve and a second sleeve arranged on the first sleeve in a sleeving mode; a plurality of annular supporting plates which are distributed at equal intervals are arranged on the outer side wall of the second sleeve, one end of the first sleeve is in threaded connection with one end of the furnace body, a plurality of sliding grooves which are distributed at equal intervals are formed in the outer side wall of the first sleeve, and the sliding grooves are formed in the extending direction of the first sleeve; the inner side wall of the second sleeve is correspondingly provided with sliding blocks sliding in cooperation with the sliding grooves. The device has the effect that the magnetic material is not prone to falling off when the sleeve is taken out.

Description

Technical Field

[0001] The present application relates to the technical field of magnetic material processing equipment, and in particular to a magnetic material vacuum sintering furnace. Background Art

[0002] The vacuum sintering equipment is in the state of vacuuming and filling with protective gas. It uses the principle of medium-frequency induction heating to make the tungsten crucible in the coil generate high temperature and operate through heat radiation conduction. Its main structural form is vertical and bottom-discharging method. Its main components are: electric furnace body, vacuum system, water cooling system, pneumatic system, hydraulic system, feeding and discharging mechanism, base, workbench, induction heating device, medium-frequency power supply and electrical control system, etc.

[0003] In the related technology, such as the Chinese utility model patent with publication number CN213984511U, a vacuum sintering furnace for magnetic material production is disclosed, including a furnace shell, a first heating body arranged on the inner wall of the furnace shell and a second heating body arranged in the middle of the furnace shell, the furnace shell includes a sealing door arranged on the upper end surface, and a detachable support frame is arranged in the furnace shell, the support frame includes a sleeve mounted on the second heating body, and an annular shelf horizontally mounted on the sleeve, the sleeve is provided with multiple layers of support members for positioning the annular shelf, and the annular shelf is provided with a mounting groove for the support member to pass through.

[0004] With respect to the above-mentioned related technologies, the following defects are found: when sintering is completed, when the sintered magnetic material needs to be taken out, it may be necessary to take the annular shelf together with the sleeve out of the furnace body. Since the sleeve is mounted on the second heating body, the sleeve may collide with the second heating body when taking out the sleeve, which may cause the magnetic material to fall off. Utility Model Content

[0005] In order to prevent the magnetic material from falling off when the sleeve is taken out, the present application provides a magnetic material vacuum sintering furnace.

[0006] The present application provides a magnetic material vacuum sintering furnace, which adopts the following technical solution:

[0007] A magnetic material vacuum sintering furnace comprises a furnace body and a heating body arranged in the furnace body, a telescopic assembly is sleeved on the heating body, the telescopic assembly comprises a first sleeve and a second sleeve sleeved on the first sleeve, a plurality of equally distributed annular support plates are provided on the outer side wall of the second sleeve, one end of the first sleeve is threadedly connected to one end of the furnace body, a plurality of equally distributed slide grooves are provided on the outer side wall of the first sleeve, the slide grooves are opened along the extension direction of the first sleeve, and a slider that slides in cooperation with the slide groove is correspondingly provided on the inner side wall of the second sleeve.

[0008] By adopting the above technical scheme, a heating body is arranged in the furnace body, a first sleeve is arranged on the heating body, a second sleeve is arranged on the first sleeve, and a plurality of equidistantly distributed annular support plates are arranged on the outer wall of the second sleeve. One end of the first sleeve is threadedly connected to one end of the furnace body, so that the first sleeve can be fixed in the furnace body, and it is also convenient to remove the first sleeve from the furnace body. A plurality of equidistantly distributed slide grooves are arranged on the outer wall of the first sleeve, and the slide grooves are opened in the extension direction of the sleeve. A sliding block that slides in cooperation with the slide groove is correspondingly arranged on the inner wall of the second sleeve, so that when the magnetic material needs to be taken out, it is only necessary to slide the second sleeve out of the furnace body along the slide groove, which is beneficial to prevent the second sleeve from colliding when it slides out of the furnace body, thereby preventing the magnetic material from falling into the furnace body.

[0009] Optionally, a limiting ring block is provided at one end of the slide groove which is away from the first sleeve and is threadedly connected to the furnace body.

[0010] By adopting the above technical solution, a limiting ring block is arranged at one end of the slide groove away from the first sleeve and threadedly connected to the furnace body, so that when the first sleeve moves along the slide groove, the second sleeve is not easily separated from the first sleeve due to the arrangement of the limiting plate.

[0011] Optionally, a pair of telescopic plates are oppositely arranged in the annular support plate at one end close to the second sleeve where the slider is arranged, and a plug-in block for the telescopic plates to be plugged in is arranged at one end of the furnace body away from the threaded connection with the first sleeve.

[0012] By adopting the above technical solution, a pair of telescopic plates are relatively arranged in the annular support plate at one end of the second sleeve where a slider is provided, and a plug-in block for plugging the arch telescopic plate is provided at the end of the furnace body away from the threaded connection with the first sleeve, so that when the second sleeve slides out of the furnace body, the telescopic plate is inserted into the plug-in block, which is beneficial to fix the second sleeve and facilitates the removal of the magnetic material.

[0013] Optionally, a pulling column is provided at one end of the telescopic plate which is away from the second sleeve and provided with a slider, and the pulling column is close to one end of the telescopic plate in a pulling-out direction.

[0014] By adopting the above technical solution, a pulling column is provided at the end of the telescopic plate away from the second sleeve where the slider is provided. The pulling column is located at the end close to the pulling direction of the telescopic plate, so that the telescopic plate can be pulled out by the pulling column, which is convenient for the telescopic plate to be plugged into the plug-in block.

[0015] Optionally, the plug-in block is provided with a channel for the pulling column to pass through, and protrusions are provided on two opposite side walls of the channel.

[0016] By adopting the above technical solution, a channel for the pulling column to pass through is provided on the plug-in block, and protrusions are provided on the opposite side walls of the channel, so that the pulling column can be plugged into the plug-in block through the channel, and a certain force is applied to the pulling column to make the pulling column pass through the protrusion, thereby fixing the telescopic plate on the plug-in block.

[0017] Optionally, the annular support plate provided with the telescopic plate is correspondingly provided with a clamping groove for the pulling column to be clamped and fixed.

[0018] By adopting the above technical solution, a corresponding clamping groove for clamping and fixing the pulling column is provided on the annular support plate provided with the telescopic plate. The pulling column is clamped into the clamping groove, so that the telescopic plate is fixed in the annular support plate, which is conducive to the storage of the telescopic plate.

[0019] Optionally, each of the annular support plates is provided with a first shelf and a second shelf, the first shelf and the second shelf are both semi-arc shaped, a fixing block is provided at the end of the first shelf, and the second shelf is correspondingly provided with a fixing groove that cooperates with the fixing block.

[0020] By adopting the above technical solution, a first shelf and a second shelf are provided on each support plate, and the first shelf and the second shelf are both semi-arc shaped. A fixing block is provided at the end of the first shelf, and a fixing groove that cooperates with the fixing block is correspondingly provided on the second shelf, so that the first shelf and the second shelf are easily removed from the annular support plate.

[0021] Optionally, the first shelf and the second shelf located on the annular support plate provided with the telescopic plate are both provided with avoidance grooves that cooperate with the pulling column.

[0022] By adopting the above technical solution, the first shelf and the second shelf located on the annular support plate provided with the telescopic plate are both provided with avoidance grooves matching with the pulling column, so that when the telescopic plate is retracted into the annular support plate, the setting of the avoidance groove can enable the pulling column to be inserted into the clamping groove without being affected.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] A heating body is arranged in the furnace body, a first sleeve is sleeved on the heating body, a second sleeve is sleeved on the first sleeve, a plurality of equally spaced annular support plates are arranged on the outer side wall of the second sleeve, one end of the first sleeve is threadedly connected to one end of the furnace body, so that the first sleeve can be fixed in the furnace body, and it is also convenient to remove the first sleeve from the furnace body, a plurality of equally spaced sliding grooves are arranged on the outer side wall of the first sleeve, and the sliding grooves are opened in the extension direction of the sleeve, and a sliding block that slides in cooperation with the sliding grooves is correspondingly arranged on the inner side wall of the second sleeve, so that when the magnetic material needs to be taken out, it is only necessary to slide the second sleeve out of the furnace body along the sliding groove, which is conducive to the situation that the second sleeve is not easy to collide when it slides out of the furnace body, thereby making it difficult for the magnetic material to fall into the furnace body;

[0025] A limiting ring block is arranged at one end of the slide groove away from the first sleeve and connected to the furnace body, so that when the first sleeve moves along the slide groove, the second sleeve is not easily separated from the first sleeve due to the arrangement of the limiting plate;

[0026] A pair of telescopic plates are arranged relatively in the annular support plate at one end of the second sleeve where a slider is provided, and a plug-in block for plugging the arch telescopic plates is arranged at the end of the furnace body away from the threaded connection with the first sleeve, so that when the second sleeve slides out of the furnace body, the telescopic plate is inserted into the plug-in block, which is beneficial to fix the second sleeve and facilitates the removal of the magnetic material. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the overall structure in the embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the structure of the furnace body in the embodiment of the present application.

[0029] Figure 3 yes Figure 2 Schematic diagram of the structure of part A in the middle.

[0030] Figure 4 It is a schematic diagram of a partial exploded structure of the telescopic assembly in an embodiment of the present application.

[0031] Figure 5 yes Figure 4 Schematic diagram of the structure of part B.

[0032] Figure 6 It is a partial structural schematic diagram of the second sleeve in the embodiment of the present application.

[0033] Figure 7 It is a partial structural schematic diagram of the first sleeve in the embodiment of the present application.

[0034] Figure 8 yes Figure 4 Schematic diagram of the structure of part C in the middle.

[0035] Explanation of the reference numerals: 1. furnace body; 11. heating chamber; 111. heating body; 112. second threaded portion; 12. sealing door; 13. plug-in block; 131. plug-in hole; 132. passage; 1321. protrusion; 2. telescopic assembly; 21. first sleeve; 211. through hole; 212. first threaded portion; 213. slide groove; 2131. limiting ring block; 22. second sleeve; 221. slider; 222. handle; 223. embedding groove; 2231. lending groove; 23. annular support plate; 231. first shelf; 2311. fixing block; 2312. avoidance groove; 232. second shelf; 2321. fixing groove; 233. telescopic plate; 2331. sleeve plate; 2332. pulling column; 234. snap-in groove. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-8 This application is described in further detail.

[0037] The present application embodiment discloses a magnetic material vacuum sintering furnace. Figure 1 A magnetic material vacuum sintering furnace includes a furnace body 1 and a telescopic component 2, and the telescopic component 2 is arranged in the furnace body 1.

[0038] Reference Figure 1 and Figure 2 A heating chamber 11 is provided in the furnace body 1, and a sealing door 12 is hinged at one end of the furnace body 1. The diameter of the sealing door 12 is consistent with the diameter of the heating chamber 11, and the sealing door 12 seals and covers the heating chamber 11. The end of the furnace body 1 provided with the sealing door 12 is the upper end of the furnace body 1, and a heating body 111 is provided at the lower end of the heating chamber 11. The heating body 111 extends toward the upper end of the furnace body 1, and the telescopic component 2 is sleeved on the heating body 111.

[0039] Reference Figure 3 , Figure 4 and Figure 5 The telescopic assembly 2 includes a first sleeve 21 and a second sleeve 22. The first sleeve 21 and the second sleeve 22 are both provided with through holes 211 distributed in a mesh shape, so that the heat of the heating body 111 can be fully radiated to the magnetic material. The first sleeve 21 is sleeved on the heating body 111, and the second sleeve 22 is sleeved on the first sleeve 21. The diameter of the first sleeve 21 is larger than the diameter of the heating body 111, that is, there is a gap between the outer wall of the first sleeve 21 and the outer wall of the heating body 111. A first threaded portion 212 is integrally formed at the lower end of the first sleeve 21, and a second threaded portion 112 threadedly connected to the first threaded portion 212 is provided at the lower end of the heating chamber 11, so that the first sleeve 21 can be threadedly fixed in the heating chamber 11, and if the telescopic assembly 2 is damaged or needs to be replaced due to other circumstances, it is also convenient to take out the telescopic assembly 2.

[0040] Reference Figure 5 and Figure 6 , a plurality of equally distributed slide grooves 213 are provided on the outer side wall of the first sleeve 21, and the slide grooves 213 are provided along the vertical direction. In the present embodiment, according to the size of the first sleeve 21, four equally distributed slide grooves 213 are preferably provided on the outer side wall of the first sleeve 21, and a plurality of equally distributed sliders 221 are welded on the inner side wall of the lower end of the second sleeve 22. Since the sliders 221 slide in coordination with the slide grooves 213, four sliders 221 are welded on the inner side wall of the lower end of the second sleeve 22, and the four sliders 221 correspond one by one to the four slide grooves 213, so that the second sleeve 22 can move up and down on the first sleeve 21.

[0041] Reference Figure 4 In order to facilitate the pulling of the second sleeve 22 to move up and down, a handle 222 is hinged at the upper end of the second sleeve 22, and an embedding groove 223 for hiding the handle 222 is opened at the upper end of the second sleeve 22, and a lending groove 2231 is opened at the two opposite groove walls near the center position of the embedding groove 223, so that when the magnetic material needs to be sintered, the second sleeve 22 is slowly moved toward the lower end through the handle 222, and then the handle 222 is pressed into the embedding groove 223, so as to reduce the space occupied by the handle 222. When the second sleeve 22 needs to be pulled upward, the handle 222 is pulled out of the embedding groove 223 through the lending groove 2231, and the second sleeve 22 can be pulled upward by the handle 222.

[0042] Reference Figure 4 and Figure 7 In order to prevent the second sleeve 22 from being easily separated from the first sleeve 21 when being pulled upward, a limiting ring block 2131 is integrally formed at the upper end of the slide groove 213, and at the same time, a plurality of equidistantly distributed annular support plates 23 are welded on the outer wall of the second sleeve 22. The annular support plates 23 are horizontally welded on the outer wall of the second sleeve 22. In this embodiment, according to the size of the second sleeve 22, three equidistantly distributed annular support plates 23 are preferably provided on the outer wall of the second sleeve 22.

[0043] Reference Figure 4A first shelf 231 and a second shelf 232 are placed on each annular support plate 23, and the first shelf 231 and the second shelf 232 are both in a semi-arc shape. Fixed blocks 2311 are integrally formed at both ends of the first shelf 231, and fixed grooves 2321 are opened at both ends of the second shelf 232. The fixed blocks 2311 correspond to the fixed grooves 2321 one by one. When the fixed blocks 2311 are inserted into the fixed grooves 2321, the first shelf 231 and the second shelf 232 can be sleeved on the second sleeve 22 through the support of the annular support plate 23, and when the magnetic material needs to be removed, the first shelf 231 and the second shelf 232 can be disconnected to remove the first shelf 231 and the second shelf 232 from the second sleeve 22, so as to facilitate the collection of the magnetic material.

[0044] Reference Figure 2 , Figure 4 and Figure 8 In order to fix the second sleeve 22 and then collect the magnetic material, a pair of telescopic plates 233 are relatively provided in the annular support plate 23 located at the lower end, and a pair of plug-in blocks 13 are welded at the position of the upper end of the furnace body 1 aligned with the telescopic plates 233. The pair of plug-in blocks 13 are aligned one by one with the positions of the pair of telescopic plates 233. The telescopic plates 233 include a number of mutually nested sleeves 2331. In this embodiment, according to the distance between the annular support plate 23 and the upper end surface of the furnace body 1, two mutually nested sleeves 2331 are preferably provided, and a plug-in hole 131 is horizontally opened at the position where the plug-in block 13 is aligned with the innermost sleeve 2331, so that the innermost sleeve 2331 can be plugged into the plug-in block 13 through the plug-in hole 131.

[0045] Reference Figure 2 and Figure 8 In order to facilitate pulling the telescopic plate 233, a pulling column 2332 is welded at the upper end of the innermost sleeve plate 2331, and the pulling column 2332 is close to the end of the sleeve plate 2331 that is pulled out. In order not to hinder the sleeve plate 2331 from being inserted into the plug-in hole 131, a channel 132 for the pulling column 2332 to pass through is opened at the upper end of the plug-in block 13, and in order to prevent the sleeve plate 2331 from being easily retracted after passing through the channel 132, protrusions 1321 are integrally formed on the opposite side walls of the channel 132, the distance between a pair of protrusions 1321 is less than the width of the channel 132, and the protrusion 1321 is located at the end of the channel 132 that is away from the annular support plate 23.

[0046] Reference Figure 4 and Figure 8Due to the setting of the pulling column 2332, in order to enable the sleeve 2331 to be retracted into the annular support plate 23, a snap-in groove 234 is opened at the position where the annular support plate 23 is aligned with the pulling column 2332. The snap-in groove 234 can also snap-in and fix the pulling column 2332 when the sleeve 2331 is retracted into the annular support plate 23, and an avoidance groove 2312 is opened at the position where the first shelf 231 and the second shelf 232 located at the lower end are aligned with the pulling column 2332.

[0047] The implementation principle of a magnetic material vacuum sintering furnace according to an embodiment of the present application is as follows: when the magnetic material needs to be sintered, the first shelf 231 and the second shelf 232 on which the magnetic material is placed are fixed to the annular support plate 23 through the fixing block 2311 and the fixing groove 2321. After the magnetic material is placed, the pulling column 2332 is pulled so that the pulling column 2332 can retract the sleeve 2331 into the annular support plate 23 through the protrusion 1321, and while retracting, the handle 222 needs to be pulled. When the pulling column 2332 is inserted into the clamping groove 234, the second sleeve 22 can be driven by the handle 222 to move downward into the heating chamber 11, and finally the sealing door 12 is closed to sinter the magnetic material.

[0048] After the magnetic material is sintered, the sealing door 12 is opened, and the second sleeve 22 is pulled out of the heating chamber 11 by the handle 222. When the telescopic plate 233 is inserted into the plug-in block 13 by the pulling column 2332, and the pulling column 2332 passes through the protrusion 1321, the handle 222 can be released, and the first shelf 231 and the second shelf 232 are disconnected by pulling the first shelf 231 and the second shelf 232, and the magnetic materials on the first shelf 231 and the second shelf 232 can be removed.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic material vacuum sintering furnace, characterized in that: The invention comprises a furnace body (1) and a heating body (111) arranged in the furnace body (1); a telescopic assembly (2) is sleeved on the heating body (111); the telescopic assembly (2) comprises a first sleeve (21) and a second sleeve (22) sleeved on the first sleeve (21); a plurality of equally spaced annular support plates (23) are arranged on the outer wall of the second sleeve (22); one end of the first sleeve (21) is threadedly connected to one end of the furnace body (1); a plurality of equally spaced sliding grooves (213) are arranged on the outer wall of the first sleeve (21); the sliding grooves (213) are opened along the extension direction of the first sleeve (21); and a sliding block (221) that slides in cooperation with the sliding groove (213) is correspondingly arranged on the inner wall of the second sleeve (22).

2. A magnetic material vacuum sintering furnace according to claim 1, characterized in that: A limiting ring block (2131) is provided at one end of the slide groove (213) which is away from the first sleeve (21) and is threadedly connected to the furnace body (1).

3. A magnetic material vacuum sintering furnace according to claim 2, characterized in that: A pair of telescopic plates (233) are oppositely arranged in the annular support plate (23) at one end of the second sleeve (22) provided with a slider (221), and a plug-in block (13) for plugging the telescopic plates (233) is arranged at one end of the furnace body (1) away from the threaded connection with the first sleeve (21).

4. A magnetic material vacuum sintering furnace according to claim 3, characterized in that: An end of the telescopic plate (233) facing away from the second sleeve (22) provided with a slider (221) is provided with a pulling column (2332), and the pulling column (2332) is close to an end of the telescopic plate (233) in a pulling-out direction.

5. A magnetic material vacuum sintering furnace according to claim 4, characterized in that: The plug-in block (13) is provided with a channel (132) for the pulling column (2332) to pass through, and two opposite side walls of the channel (132) are provided with protrusions (1321).

6. A magnetic material vacuum sintering furnace according to claim 5, characterized in that: The annular support plate (23) provided with the telescopic plate (233) is correspondingly provided with a clamping groove (234) for the pulling column (2332) to be clamped and fixed.

7. A magnetic material vacuum sintering furnace according to claim 6, characterized in that: Each of the annular support plates (23) is provided with a first shelf (231) and a second shelf (232); the first shelf (231) and the second shelf (232) are both semi-arc-shaped; a fixing block (2311) is provided at the end of the first shelf (231); and the second shelf (232) is correspondingly provided with a fixing groove (2321) that is matched and plugged with the fixing block (2311).

8. A magnetic material vacuum sintering furnace according to claim 7, characterized in that: The first shelf (231) and the second shelf (232) located on the annular support plate (23) provided with the telescopic plate (233) are both provided with an avoidance groove (2312) that matches the pulling column (2332).

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