Graphite sintering box with exhaust function
By using memory spring to drive the joint movement of the baffle and the insert plate in the graphite sintered box, the problem of difficulty in exhausting the graphite cartridge is solved, and a low-cost exhaust effect is achieved, and a high-cost sintering furnace with glove box is avoided.
Patent Information
- Application Number
- CN202421968232.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-14
AI Technical Summary
During the production process of sintered NdFeB permanent magnet materials, existing graphite cartridges have difficulty in exhausting before heating and during heating, resulting in product performance being affected, and the cost of using a sintering furnace with glove boxes is high.
Design a graphite sintered box with exhaust function, use memory spring to drive the baffle horizontally to open the exhaust hole, and insert the rectangular groove into the insertion plate to fix the baffle position to ensure smooth exhaust.
It achieves smooth exhaust before heating and during heating, avoids the use of expensive sintering furnaces with glove boxes, and reduces production costs.
Smart Images
Figure CN223070445U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of graphite sintering boxes, in particular to a graphite sintering box with an exhaust function. Background Technique
[0002] The production of sintered neodymium iron boron permanent magnet materials usually uses graphite boxes. The graphite box has good sealing performance, but it is difficult to exhaust air before and during the heating process, which requires an extended exhaust time and has an adverse effect on the product performance. The traditional method is to use a sintering furnace with a glove box to avoid the problem of difficult exhaust of the graphite box before and during the heating process.
[0003] However, the sintering furnace with a glove box has a very high cost. If the graphite box can exhaust air smoothly before and during the heating process, avoiding the use of an expensive sintering furnace with a glove box has great promotional value.
[0004] In view of the above problems, the utility model provides a graphite sintering box with an exhaust function. Content of the Utility Model
[0005] The purpose of the utility model is to provide a graphite sintering box with an exhaust function, which uses the memory effect of the memory spring to drive the baffle to move horizontally to open the exhaust hole for exhaust, and at the same time drives the plug board to insert into the rectangular groove to fix the position of the baffle, ensuring that the exhaust is not affected, thereby solving the problems in the background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A graphite sintering box with an exhaust function, including a sintering box, an exhaust hole is opened in the middle of the outer side of the sintering box, a baffle that can move horizontally and reciprocally in a straight line is arranged outside the exhaust hole, one side of the baffle is fixedly provided with a memory spring, a rectangular groove is opened on one side of the upper end of the baffle, and a plug board that can move vertically and reciprocally in a straight line is also arranged outside the sintering box, and inclined surfaces and flat surfaces are respectively formed on both sides of the lower end of the plug board.
[0007] Further, L-shaped plates are symmetrically arranged at the upper and lower ends outside the exhaust hole, the L-shaped plates are fixedly connected to the outer side wall of the sintering box, the baffle is slidably connected to the inner surface of the L-shaped plate and is in contact connection with the outer side wall of the sintering box at the same time.
[0008] Further, one end of the memory spring away from the baffle is fixedly connected with a fixing plate, and the fixing plate is fixedly connected to the outer side wall of the sintering box.
[0009] Further, a rectangular frame is fixedly connected to the outer side wall of the sintering box, the plug board is slidably connected to the inside of the rectangular frame, and a limiting plate is fixedly connected to the upper end of the plug board, and the specification of the limiting plate is larger than the inner hole specification of the rectangular frame.
[0010] Further, the memory spring is in an initially stretched state, and the baffle seals the exhaust hole.
[0011] Further, a lid is snap-fitted and installed at the upper end of the sintering box.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] A graphite sintering box with an exhaust function provided by the present utility model is made of graphite material except for the memory spring. The sintering box is pushed into the furnace for heating. After the memory spring is heated, it returns to its original length, pulling the baffle to move to one side. At this time, the exhaust hole is opened for exhaust. During the movement of the baffle, one end presses against the inclined surface, and the inclined surface is pressed to drive the plug board to rise vertically. At this time, the bottom end of the plug board slides on the upper end of the baffle. When the baffle continues to move until the bottom end of the plug board aligns with the rectangular groove, under the action of gravity, the bottom end of the plug board is inserted into the rectangular groove. At this time, the position of the baffle is fixed and the memory spring no longer deforms. When the heating temperature exceeds the tolerable range of the memory spring, the memory effect of the memory spring disappears, and the memory spring tends to return to its original length, which will push the baffle to move in the reverse direction. However, due to the limitation of the flat surface part, the baffle is prevented from resetting. At this time, the exhaust of the exhaust hole is not affected. The purpose of this design is to utilize the memory effect of the memory spring to drive the baffle to move horizontally to open the exhaust hole for exhaust, and at the same time drive the plug board to insert into the rectangular groove to fix the position of the baffle, ensuring that the exhaust is not affected. Description of the Drawings
[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;
[0015] Figure 2 It is a schematic diagram of the plug board structure in the present utility model;
[0016] Figure 3 It is a schematic diagram of the lid structure in the present utility model;
[0017] Figure 4 For the present utility model Figure 1 The enlarged view at A.
[0018] In the figure: 1, sintering box; 2, lid; 3, exhaust hole; 4, L-shaped plate; 5, baffle; 6, memory spring; 7, fixing plate; 8, rectangular groove; 9, plug board; 10, inclined surface part; 11, flat surface part; 12, rectangular frame; 13, limiting plate. Detailed Embodiments
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] To solve the technical problem of how to effectively exhaust air, such as Figures 1-4 shown, the following preferred technical solutions are provided:
[0021] A graphite sintering box with an exhaust function includes a sintering box 1. An exhaust hole 3 is opened in the middle of the outer side of the sintering box 1. A baffle 5 that can move horizontally in a reciprocating straight line is arranged outside the exhaust hole 3. A memory spring 6 is fixedly arranged on one side of the baffle 5. A rectangular groove 8 is opened on one side of the upper end of the baffle 5. An insertion plate 9 that can move vertically in a reciprocating straight line is also arranged outside the sintering box 1. Oblique faces 10 and flat faces 11 are respectively formed and processed on both sides of the lower end of the insertion plate 9.
[0022] Specifically, except for the memory spring 6, the device is made of graphite material. The sintering box 1 is pushed into the furnace for heating. After the memory spring 6 is heated, it returns to its original length, pulling the baffle 5 to move to one side. At this time, the exhaust hole 3 is opened for exhaust. During the movement of the baffle 5, one end presses on the oblique face 10. The oblique face 10 is pressed to drive the insertion plate 9 to rise vertically. At this time, the bottom end of the insertion plate 9 slides on the upper end of the baffle 5. When the baffle 5 continues to move until the bottom end of the insertion plate 9 is aligned with the rectangular groove 8, under the action of gravity, the bottom end of the insertion plate 9 is inserted into the rectangular groove 8. At this time, the position of the baffle 5 is fixed and the memory spring 6 no longer deforms. When the heating temperature exceeds the tolerable range of the memory spring 6, the memory effect of the memory spring 6 disappears, and the memory spring 6 tends to become its original length, which will push the baffle 5 to move in the reverse direction. However, due to the limitation of the flat face 11, the baffle 5 is prevented from resetting. At this time, the exhaust of the exhaust hole 3 is not affected. The purpose of such a design is to utilize the memory effect of the memory spring 6 to drive the baffle 5 to move horizontally to open the exhaust hole 3 for exhaust, and at the same time drive the insertion plate 9 to be inserted into the rectangular groove 8 to fix the position of the baffle 5, ensuring that the exhaust is not affected.
[0023] Furthermore, as Figure 1 and Figure 4 shown, the following preferred technical solutions are provided:
[0024] L-shaped plates 4 are symmetrically arranged at the upper and lower ends outside the exhaust hole 3. The L-shaped plates 4 are fixedly connected to the outer side wall of the sintering box 1. The baffle 5 is slidably connected to the inner surface of the L-shaped plates 4 and is simultaneously in contact connection with the outer side wall of the sintering box 1. The purpose of such a design is to ensure that the baffle 5 can move horizontally in a reciprocating straight line.
[0025] Furthermore, as Figure 4 shown, the following preferred technical solutions are provided:
[0026] One end of the memory spring 6 far from the baffle 5 is fixedly connected to a fixing plate 7, and the fixing plate 7 is fixedly connected to the outer side wall of the sintering box 1. The purpose of such a design is to utilize the characteristics of the memory spring 6 to drive the baffle 5 to move horizontally.
[0027] Further, as Figures 1-4 shown, the following preferred technical solutions are provided:
[0028] A rectangular frame 12 is fixedly connected to the outer side wall of the sintering box 1. The insertion plate 9 is slidably connected to the inner side of the rectangular frame 12. A limiting plate 13 is fixedly connected to the upper end of the insertion plate 9. The specification of the limiting plate 13 is larger than the inner hole specification of the rectangular frame 12. The purpose of this design is to ensure that the insertion plate 9 can vertically lift and lower, and the limiting plate 13 supports the insertion plate 9.
[0029] Further, as Figure 1 and Figure 4 shown, the following preferred technical solutions are provided:
[0030] The memory spring 6 is in an initially stretched state, and the baffle 5 seals the exhaust hole 3. The purpose of this design is to ensure that the sintering box 1 is in a sealed state before entering the furnace.
[0031] Further, as Figure 3 shown, the following preferred technical solutions are provided:
[0032] A box cover 2 is snap-fitted and installed on the upper end of the sintering box 1. The purpose of this design is to seal the sintering box 1.
[0033] In summary: Except for the memory spring 6, the components of this device are made of graphite material. The sintering box 1 is pushed into the furnace for heating. After being heated, the memory spring 6 returns to its original length, pulling the baffle 5 to move to one side. At this time, the exhaust hole 3 is opened for exhaust. During the movement of the baffle 5, one end presses against the inclined surface portion 10, and the inclined surface portion 10 is pressed to drive the insertion plate 9 to vertically rise. At this time, the bottom end of the insertion plate 9 slides on the upper end of the baffle 5. When the baffle 5 continues to move until the bottom end of the insertion plate 9 aligns with the rectangular groove 8, under the action of gravity, the bottom end of the insertion plate 9 is inserted into the rectangular groove 8. At this time, the position of the baffle 5 is fixed and the memory spring 6 no longer deforms. When the heating temperature exceeds the tolerable range of the memory spring 6, the memory effect of the memory spring 6 disappears, and the memory spring 6 tends to return to its original length, which will push the baffle 5 to move in the reverse direction. However, due to the limitation of the flat surface portion 11, the baffle 5 is prevented from resetting. At this time, the exhaust of the exhaust hole 3 is not affected. The purpose of this design is to utilize the memory effect of the memory spring 6 to drive the baffle 5 to horizontally move to open the exhaust hole 3 for exhaust, and at the same time drive the insertion plate 9 to be inserted into the rectangular groove 8 to fix the position of the baffle 5, ensuring that the exhaust is not affected.
[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A graphite sintering box with an exhaust function, comprising a sintering box (1), characterized in that: An exhaust hole (3) is provided in the middle of the outer side of the sintering box (1). A baffle (5) capable of reciprocating linearly in the horizontal direction is arranged outside the exhaust hole (3). One side of the baffle (5) is fixedly provided with a memory spring (6). A rectangular groove (8) is provided on one side of the upper end of the baffle (5). An insertion plate (9) capable of reciprocating linearly in the vertical direction is also arranged outside the sintering box (1). Oblique faces (10) and flat faces (11) are respectively formed on both sides of the lower end of the insertion plate (9).
2. The graphite sintering box with an exhaust function according to claim 1, characterized in that: L-shaped plates (4) are symmetrically arranged at the upper and lower ends outside the exhaust hole (3). The L-shaped plates (4) are fixedly connected to the outer side wall of the sintering box (1). The baffle (5) is slidably connected to the inner surface of the L-shaped plate (4) and is in contact connection with the outer side wall of the sintering box (1) at the same time.
3. A graphite sintering box with an exhaust function according to claim 1, characterized in that: One end of the memory spring (6) away from the baffle (5) is fixedly connected to a fixing plate (7). The fixing plate (7) is fixedly connected to the outer side wall of the sintering box (1).
4. A graphite sintering box with an exhaust function according to claim 1, characterized in that: A rectangular frame (12) is fixedly connected to the outer side wall of the sintering box (1). The insertion plate (9) is slidably connected to the inside of the rectangular frame (12). A limiting plate (13) is fixedly connected to the upper end of the insertion plate (9). The specification of the limiting plate (13) is larger than the inner hole specification of the rectangular frame (12).
5. The graphite sintering box with an exhaust function according to claim 1, characterized in that: The memory spring (6) is in an initially stretched state, and the baffle (5) seals the exhaust hole (3).
6. The graphite sintering box with an exhaust function according to claim 1, characterized in that: A box cover (2) is snap-fitted and installed at the upper end of the sintering box (1).