Hot pressing sintering device of graphite pressure head

Abstract

The utility model is applicable to the technical field of graphite product processing, and provides a hot pressing sintering device of a graphite pressure head, which comprises a device seat and a material receiving mechanism, a die hole is vertically formed in the front part of the upper surface of the device seat in a penetrating manner, a lower die is arranged in the die hole, and an upper die is arranged on the upper surface of the device seat and is positioned right above the lower die. According to the hot-pressing sintering device for the graphite pressure head, by arranging a scraper and a material receiving mechanism, when the device is used, a metal powder raw material enters a feeding frame of the device through a powder feeding pipe, then a hydraulic rod pushes the feeding frame of the device to move forwards, and in the moving process, the metal powder raw material enters the feeding frame of the device; according to the metal powder collecting device, the scraping plate arranged at the front end of the feeding frame can push residual metal powder on the device base forwards until the powder is pushed into the material collecting mechanism of the device, so that the residual metal powder is collected, people can reuse the residual metal powder conveniently, meanwhile, the movement of the feeding frame is not interfered, and the efficiency of the whole working process is improved.

Description

Technical Field

[0001] This utility model belongs to the field of graphite product processing technology, and in particular relates to a hot pressing sintering device for a graphite pressing head. Background Technology

[0002] A commonly used hot press mainly consists of a heating furnace, a pressurizing device, a mold, and temperature and pressure measuring devices. The heating furnace uses electricity as a heat source, and the heating elements include SiC, MoSi, or nickel-chromium wire, platinum wire, molybdenum wire, etc. The pressurizing device requires a smooth speed, constant pressure holding, and flexible pressure adjustment; it can be lever-type or hydraulic. Depending on the material properties, the pressure atmosphere can be air, a reducing atmosphere, or an inert atmosphere. The mold requires high strength, high temperature resistance, oxidation resistance, and must not adhere to the hot-pressed material. The coefficient of thermal expansion of the mold should be the same as or approximately the same as that of the hot-pressed material.

[0003] Hot pressing sintering generally involves compacting metal powder and then heating it to fuse the powder into a single piece. During processing, the metal powder is first extruded into the desired shape using a mold. However, because the raw material is metal powder and the final product varies in shape, there is always excess metal powder added each time. This results in residual metal powder remaining on the worktable, which, if not addressed, leads to waste and hinders the normal operation of the equipment. Utility Model Content

[0004] This utility model provides a hot pressing sintering device for a graphite indenter, which aims to solve the problem that since the raw material is metal powder and the shape of the final product is not uniform, the amount of metal powder added each time will always be excessive. This results in residual metal powder remaining on the worktable, which will cause waste if not treated and will also hinder the normal operation of the equipment.

[0005] This utility model is implemented as follows: a hot pressing sintering device for a graphite press head, including a device base and a material receiving mechanism;

[0006] A mold hole is vertically opened through the front part of the upper surface of the device base, and a lower mold is arranged inside the mold hole. An upper mold is arranged on the upper surface of the device base and directly above the lower mold. The material receiving mechanism is arranged on the front surface of the device base.

[0007] The material receiving mechanism includes a fixed frame that is fixedly connected to the front surface of the device base and is open at both the top and bottom. A filter screen is detachably installed inside the fixed frame. A material receiving frame is detachably installed at the bottom of the fixed frame. A vibration motor is fixedly connected to the front surface of the fixed frame.

[0008] A hydraulic rod is fixedly connected to the rear end of the upper surface of the device base. A rectangular feeding frame with an open bottom is fixedly connected to the front end surface of the movable part of the hydraulic rod. A scraper with its lower surface in contact with the upper surface of the device base is fixedly connected to the front end surface of the feeding frame.

[0009] Preferably, the fixed frame has multiple overlapping strips fixedly connected inside, and the filter screen is detachably installed inside the fixed frame through the multiple overlapping strips.

[0010] Preferably, a plurality of first magnetic blocks are fixedly connected to the bottom end of the outer surface of the fixed frame, and a plurality of second magnetic blocks that attract each other to the plurality of first magnetic blocks are fixedly connected to the top end of the inner surface of the receiving frame, and the receiving frame is detachably installed at the bottom end of the fixed frame through the plurality of second magnetic blocks.

[0011] Preferably, an electrically controlled telescopic rod is fixedly connected to the front end of the upper surface of the feeding frame, and a connecting block is fixedly connected to the rear end of the movable rod of the electrically controlled telescopic rod. A through groove is vertically opened through the upper surface of the feeding frame along its length direction. The bottom end of the connecting block extends into the interior of the feeding frame through the through groove. A baffle plate that fits tightly against the upper surface of the inner cavity of the feeding frame is fixedly connected to the bottom end of the connecting block.

[0012] Preferably, a powder inlet hole is vertically opened through the rear part of the upper surface of the feeding frame, and a powder feeding pipe is connected to the top of the powder inlet hole. When the electrically controlled telescopic rod is extended, the baffle is located directly below the powder inlet hole.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When in use, the metal powder raw material enters the feeding frame of the device through the powder feeding pipe. Then, the hydraulic rod pushes the feeding frame forward. During the movement, the scraper at the front end of the feeding frame can push the residual metal powder on the device seat forward until the powder is pushed into the receiving mechanism of the device. This collects the residual metal powder, which is convenient for people to reuse and does not interfere with the movement of the feeding frame, thus improving the efficiency of the entire working process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the feeding frame in this utility model;

[0018] Figure 3 This is a schematic diagram of the material receiving mechanism in this utility model.

[0019] In the diagram: 1-device base, 2-mold hole, 3-lower mold, 4-upper mold, 5-receiving mechanism, 51-fixed frame, 52-overlapping strip, 53-filter screen, 54-first magnetic block, 55-receiving frame, 56-second magnetic block, 57-vibration motor, 6-hydraulic rod, 7-feeding frame, 8-scraper, 9-electrically controlled telescopic rod, 10-connecting block, 11-through groove, 12-baffle plate, 13-powder inlet hole, 14-powder feeding pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a hot pressing sintering device for a graphite press head, including a device base 1 and a material receiving mechanism 5.

[0022] A mold hole 2 is vertically opened through the front part of the upper surface of the device base 1. A lower mold 3 is set inside the mold hole 2. An upper mold 4 is set on the upper surface of the device base 1 and directly above the lower mold 3. A material receiving mechanism 5 is set on the front surface of the device base 1.

[0023] The receiving mechanism 5 includes a fixed frame 51 that is fixedly connected to the front surface of the device base 1 and is open at both the top and bottom. A filter screen 53 is detachably installed inside the fixed frame 51. A receiving frame 55 is detachably installed at the bottom of the fixed frame 51. A vibration motor 57 is fixedly connected to the front surface of the fixed frame 51.

[0024] A hydraulic rod 6 is fixedly connected to the rear end of the upper surface of the device base 1. A rectangular feeding frame 7 with an open bottom is fixedly connected to the front end of the movable rod of the hydraulic rod 6. A scraper 8 with its lower surface in contact with the upper surface of the device base 1 is fixedly connected to the front end of the feeding frame 7.

[0025] An electrically controlled telescopic rod 9 is fixedly connected to the front end of the upper surface of the feeding frame 7. A connecting block 10 is fixedly connected to the rear end of the movable rod of the electrically controlled telescopic rod 9. A through groove 11 is vertically opened through the upper surface of the feeding frame 7 along its length. The bottom end of the connecting block 10 extends into the interior of the feeding frame 7 through the through groove 11. A baffle 12 that fits tightly against the upper surface of the inner cavity of the feeding frame 7 is fixedly connected to the bottom end of the connecting block 10.

[0026] A powder inlet hole 13 is vertically opened through the rear part of the upper surface of the feeding frame 7. The top of the powder inlet hole 13 is connected to the powder feeding pipe 14. When the electrically controlled telescopic rod 9 is extended, the baffle 12 is located directly below the powder inlet hole 13.

[0027] When in use, the metal powder raw material enters the feeding frame 7 of the device through the powder feeding pipe 14. Then, the hydraulic rod 6 pushes the feeding frame 7 forward. During the movement, the scraper 8 set at the front end of the feeding frame 7 can push the residual metal powder on the device base 1 forward until the powder is pushed into the receiving mechanism 5 of the device. This collects the residual metal powder, which is convenient for people to reuse and does not interfere with the movement of the feeding frame 7, thus improving the efficiency of the entire working process.

[0028] When metal powder enters the receiving mechanism 5 of the device, it first falls onto the filter screen 53 inside the fixed frame 51 of the receiving mechanism 5. As the vibrating motor 57 continues to run, the filter screen 53 will also continue to shake, and the metal powder will be shaken to the bottom of the filter screen 53. Large particles or metal powder that has been clumped will remain on the top of the filter screen 53. This mechanism can perform preliminary filtration while recovering powder, reducing subsequent processing steps for metal powder and improving overall work efficiency.

[0029] When feeding is required, the electrically controlled telescopic rod 9 will retract, thereby driving the baffle 12 to move towards the front end through the connecting block 10. During its movement, the baffle 12 will leave directly below the powder inlet hole 13, thus no longer blocking it. At this time, the metal powder will enter the interior of the feeding frame 7 through the powder feeding pipe 14.

[0030] Furthermore, the fixed frame 51 is internally fixedly connected with multiple overlapping strips 52, and the filter screen 53 is detachably installed inside the fixed frame 51 through the multiple overlapping strips 52.

[0031] In this embodiment, the filter screen 53 is fixed in position by overlapping the strip 52, which makes it easy and quick to install and remove the filter screen 53, thus improving the convenience of the device.

[0032] Furthermore, a plurality of first magnetic blocks 54 are fixedly connected to the bottom end of the outer surface of the fixed frame 51, and a plurality of second magnetic blocks 56, which are attracted to each other by the plurality of first magnetic blocks 54, are fixedly connected to the top end of the inner surface of the receiving frame 55. The receiving frame 55 is detachably installed at the bottom end of the fixed frame 51 by the plurality of second magnetic blocks 56.

[0033] In this embodiment, the receiving frame 55 is installed at the bottom of the fixed frame 51 by magnetic attraction. This structure is very convenient and quick to install or disassemble, which improves the convenience of using the device.

[0034] The working principle and usage process of this utility model are as follows: After the utility model is installed, when the device is in use, the metal powder raw material enters the feeding frame 7 of the device through the powder feeding pipe 14. Then, the hydraulic rod 6 pushes the feeding frame 7 of the device forward. During the movement, the scraper 8 set at the front end of the feeding frame 7 can push the residual metal powder on the device base 1 forward until the powder is pushed into the receiving mechanism 5 of the device. This collects the residual metal powder, which is convenient for people to reuse and does not interfere with the movement of the feeding frame 7, thus improving the efficiency of the entire working process.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hot pressing sintering apparatus for a graphite indenter, characterized in that: Includes a device base (1) and a receiving mechanism (5); The upper surface of the device base (1) is vertically opened with a mold hole (2) at the front. A lower mold (3) is provided inside the mold hole (2). An upper mold (4) is provided on the upper surface of the device base (1) and directly above the lower mold (3). The material receiving mechanism (5) is provided on the front surface of the device base (1). The receiving mechanism (5) includes a fixed frame (51) fixedly connected to the front surface of the device base (1) and open at both the top and bottom. A filter screen (53) is detachably installed inside the fixed frame (51). A receiving frame (55) is detachably installed at the bottom of the fixed frame (51). A vibration motor (57) is fixedly connected to the front surface of the fixed frame (51). A hydraulic rod (6) is fixedly connected to the rear end of the upper surface of the device base (1). A rectangular feeding frame (7) with an open bottom is fixedly connected to the front end of the movable rod of the hydraulic rod (6). A scraper (8) with its lower surface in contact with the upper surface of the device base (1) is fixedly connected to the front end of the feeding frame (7).

2. The hot pressing sintering apparatus for a graphite indenter as described in claim 1, characterized in that: The fixed frame (51) is internally fixedly connected with multiple overlapping strips (52), and the filter screen (53) is detachably installed inside the fixed frame (51) through the multiple overlapping strips (52).

3. The hot pressing sintering apparatus for a graphite indenter as described in claim 1, characterized in that: A plurality of first magnetic blocks (54) are fixedly connected to the bottom of the outer surface of the fixed frame (51), and a plurality of second magnetic blocks (56) are fixedly connected to the top of the inner surface of the receiving frame (55), which are attracted to each other by the plurality of first magnetic blocks (54). The receiving frame (55) is detachably installed at the bottom of the fixed frame (51) by the plurality of second magnetic blocks (56).

4. The hot pressing sintering apparatus for a graphite indenter as described in claim 1, characterized in that: An electrically controlled telescopic rod (9) is fixedly connected to the front end of the upper surface of the feeding frame (7). A connecting block (10) is fixedly connected to the rear end of the movable rod of the electrically controlled telescopic rod (9). A through groove (11) is vertically opened on the upper surface of the feeding frame (7) along its length direction. The bottom end of the connecting block (10) extends into the interior of the feeding frame (7) through the through groove (11). A baffle (12) that fits tightly against the upper surface of the inner cavity of the feeding frame (7) is fixedly connected to the bottom end of the connecting block (10).

5. The hot pressing sintering apparatus for a graphite indenter as described in claim 4, characterized in that: The upper surface of the feeding frame (7) has a vertically penetrating powder inlet hole (13) at the rear. The top of the powder inlet hole (13) is connected to a powder feeding pipe (14). When the electrically controlled telescopic rod (9) is extended, the baffle (12) is located directly below the powder inlet hole (13).

Images