Pressing device for processing nuclear graphite material of high-temperature gas cooled reactor

Abstract

The invention relates to the technical field of graphite production, in particular to a pressing device for high-temperature gas cooled reactor nuclear graphite material processing, which comprises a pressing machine base, a pressing assembly for pressing a graphite material is arranged on the pressing machine base, an L-shaped plate is fixedly connected to the side wall of the pressing machine base, a collecting box is arranged on the L-shaped plate, and a fixing plate is fixedly connected to the top end of the pressing machine base. Through the arrangement of the straight block, the inclined block, the main pushing frame, the side pushing plate and other structures, three cylindrical graphite workpieces which are pressed can be automatically pushed out, the three pieces of graphite are pushed together, and the pressing efficiency is greatly improved. And then the main pushing frame is driven to push the three pieces of graphite into the collecting box together to be collected and treated, so that automatic arrangement and discharging of the pressed and formed graphite are achieved, workers do not need to place the formed graphite workpieces into the collecting box one by one, and the convenience performance of the device is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of graphite production, and particularly to a pressing device for processing nuclear graphite materials for high-temperature gas-cooled reactors. Background Art

[0002] Due to its excellent neutron moderation performance, high purity, low impurity content, high heat resistance, good thermal conductivity and radiation resistance, the nuclear graphite material for high-temperature gas-cooled reactors has become a key material in high-temperature gas-cooled reactors and is often processed into spherical, cylindrical, irregular shapes, etc., for important components such as fuel element matrices, moderators, and reflectors.

[0003] In the prior art, a graphite product pressing and forming device with the publication number of CN118721842A drives the pressing frame to slide up and down through the output end of the hydraulic cylinder, and the connecting rod synchronously drives the sliding frame to slide on the inner wall of the device base. After the graphite product is pressed and formed by the pressing block in cooperation with the mold, the ejector rod ejects the pressed and formed graphite product on the sliding plate, facilitating the rapid material taking of the graphite product and improving the production efficiency of the graphite product. By using the cooperation of the limiting block and the limiting groove, the stability of the ejector rod sliding up the sliding plate can be improved, and the situation of the graphite product falling due to the inclination of the sliding plate can be reduced. Depending on the scraper scraping the inner wall of the mold when sliding up with the sliding plate, the residual material attached to the inner wall of the mold is reduced, and the residual material is scraped into the collection tank for collection, thereby improving the quality of the graphite product pressing and forming.

[0004] Although the above device can improve the quality of graphite pressing, in the actual use process, after the nuclear graphite material pressing device for high-temperature gas-cooled reactors completes pressing and forming and ejects the workpiece, it cannot automatically place the workpiece neatly in the material box, and manual secondary placement is required. This manual placement method not only increases the labor cost but also reduces the production efficiency. During mass production, the manual placement speed is much lower than the machine production speed, resulting in a serious limitation of the efficiency of the entire production process and unable to meet the requirements of modern industrial production for high efficiency, precision, and automation.

[0005] Therefore, a pressing device for processing nuclear graphite materials for high-temperature gas-cooled reactors is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to propose a pressing device for processing nuclear graphite materials for high-temperature gas-cooled reactors to solve the disadvantages existing in the background art.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: A pressing device for processing nuclear graphite materials of a high-temperature gas-cooled reactor, including a pressing base, a pressing assembly for pressing graphite materials is provided on the pressing base, an L-shaped plate is fixedly connected to the side wall of the pressing base, a collection box is provided on the L-shaped plate, a fixing plate is fixedly connected to the top end of the pressing base, a main push electric telescopic cylinder is fixedly connected to the side wall of the fixing plate, an upper U-shaped plate is provided on the pressing base, a pair of straight blocks are provided on the upper U-shaped plate, inclined blocks are fixedly connected to the side walls of the straight blocks, extrusion grooves are respectively formed through the top ends of the straight blocks and the inclined blocks, a main push frame is arranged inside the upper U-shaped plate, side push plates are respectively arranged at both ends inside the upper U-shaped plate, extrusion rods are arranged on the side push plates, and the extrusion rods are inserted inside the extrusion grooves. T-shaped grooves are respectively formed on the relatively close sides of the straight blocks, telescopic plates are respectively slidably connected to both ends inside the main push frame, T-shaped blocks are fixedly connected to the top ends of the telescopic plates on the relatively far sides, and the T-shaped blocks are respectively slidably connected inside the T-shaped grooves.

[0008] In the above technical solution, further, a displacement electric telescopic cylinder is fixedly connected to the side wall of the L-shaped plate, the output end of the displacement electric telescopic cylinder passes through the side wall of the L-shaped plate and is fixedly connected with an insertion frame, and an insertion block for inserting into the insertion frame is fixedly connected to the side wall of the collection box.

[0009] In the above technical solution, further, a pair of lower U-shaped plates are fixedly connected to the side wall of the upper U-shaped plate, a secondary push electric telescopic cylinder is fixedly connected to the side wall of the lower U-shaped plate, the output end of the main push electric telescopic cylinder passes through the side wall of the fixing plate and is fixedly connected to the side wall of the upper U-shaped plate, the output end of the secondary push electric telescopic cylinder passes through the inside of the lower U-shaped plate and is fixedly connected with an adjustment frame, and the straight blocks are respectively slidably connected inside the adjustment frame.

[0010] In the above technical solution, further, guide rods are respectively fixedly connected to the side walls of the side push plates, and the guide rods penetrate through the outer wall of the upper U-shaped plate.

[0011] In the above technical solution, further, side plates are respectively slidably connected through the positions beside the main push frame on both sides of the outer wall of the upper U-shaped plate, a pair of limit frames are slidably connected to the top end of the upper U-shaped plate, the straight blocks are slidably connected inside the limit frames, a resisting block is fixedly connected to the inside of the upper U-shaped plate, a connecting block is fixedly connected between the top ends of the limit frame and the side plate, and a scale groove is formed in the top end of one of the side plates.

[0012] In the above technical solution, further, a magnet is fixedly connected through the inside of the T-shaped groove, and the T-shaped block is made of iron material.

[0013] In the above technical solution, further, a bidirectional lead screw is rotatably connected inside the adjustment frame, the side wall of the bidirectional lead screw passes through the outer wall of the adjustment frame and is fixedly connected with a rotating block, and the bidirectional lead screw is threadedly connected through the inner side wall of the straight block.

[0014] In the above technical solution, further, three lower springs are fixedly connected between the telescopic plates. A chute is opened at the top end of the side push plate, and a number of positioning grooves are equidistantly opened at the bottom end of the chute. The bottom end of the extrusion rod is slidably connected to the inner side of the chute. A round hole is penetrated through the top end of the extrusion rod, and a positioning rod is slidably connected in the round hole. The bottom end of the positioning rod is inserted into the inner side of one of the positioning grooves. A positioning spring is fixedly connected between the top end of the extrusion rod and the outer wall of the positioning rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the arrangement of structures such as the straight block, the inclined block, the main push frame and the side push plate, the present invention can automatically push out the three cylindrical graphite workpieces after pressing and push the three pieces of graphite together. Then, the main push frame is driven to push the three pieces of graphite into the collection box for collection and processing together, so as to realize the automatic sorting and blanking of the pressed graphite, without the need for workers to place the formed graphite workpieces into the collection box one by one, greatly improving the convenience performance of the device.

[0016] 2. Through the arrangement of structures such as the bidirectional lead screw, the positioning rod and the telescopic plate, the present invention can adjust the distance for squeezing the three pieces of graphite to move towards the middle according to the diameter of the pressed cylindrical graphite, and at the same time change the length of the main push frame, so as to push the cylindrical graphite with different diameters into the collection box, thereby sorting and collecting various planned graphite, greatly improving the general performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front three-dimensional structural schematic diagram of the pressing device of the present invention; Figure 2 It is a partial top three-dimensional structural schematic diagram of the pressing machine base of the present invention; Figure 3 It is the attachment of the present invention Figure 2 The partial enlarged structural schematic diagram at A in the figure; Figure 4 It is a three-dimensional structural schematic diagram of the separation of the L-shaped plate and the collection box of the present invention; Figure 5 It is a top three-dimensional structural schematic diagram of the upper U-shaped plate and the fixing plate of the present invention; Figure 6 It is a partial three-dimensional structural schematic diagram of the adjusting frame and the straight block of the present invention; Figure 7 It is an overall external structural schematic diagram of the telescopic plate, the side push plate and the straight block of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the separation of the side push plate and the positioning rod of the present invention.

[0018] In the figure: 1, pressing base; 2, pressing assembly; 3, L-shaped plate; 4, collection box; 5, fixing plate; 6, main push electric telescopic cylinder; 7, upper U-shaped plate; 8, straight block; 9, inclined block; 10, extrusion groove; 11, main push frame; 12, side push plate; 13, extrusion rod; 14, T-shaped block; 15, lower U-shaped plate; 16, secondary push electric telescopic cylinder; 17, displacement electric telescopic cylinder; 18, insertion frame; 19, insertion block; 20, guide rod; 21, adjustment frame; 22, side plate; 23, limit frame; 24, abutting block; 25, telescopic plate; 26, connecting block; 27, magnet; 28, positioning spring; 29, bidirectional lead screw; 30, rotating block; 31, scale groove; 32, lower spring; 33, positioning groove; 34, positioning rod. Detailed implementation manners

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0020] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0021] In actual use, it is found that after the high-temperature gas-cooled reactor nuclear graphite material pressing device completes the pressing and forming and ejects the workpiece, the workpiece cannot be automatically and neatly placed in the material box, and manual secondary placement is required. This manual placement method not only increases the labor cost but also reduces the production efficiency. During mass production, the manual placement speed is much lower than the machine production speed, resulting in a serious limitation of the efficiency of the entire production process and unable to meet the requirements of modern industrial production for high efficiency, precision, and automation. To solve the above problems, the following structure is specifically invented.

[0022] As Figures 1-8The pressing device for processing nuclear graphite materials of high-temperature gas-cooled reactors shown in the figure includes a pressing base 1. A pressing assembly 2 for pressing graphite materials is provided on the pressing base 1. The pressing assembly 2 mainly presses graphite products with the required shapes and properties for high-temperature gas-cooled reactors through processes such as mixing graphite powder with a binder, pre-pressing and forming, heating and curing, and then roasting and graphitizing. A side wall of the pressing base 1 is fixedly connected with an L-shaped plate 3. A collection box 4 is provided on the L-shaped plate 3. A fixed plate 5 is fixedly connected to the top end of the pressing base 1. A main push electric telescopic cylinder 6 is fixedly connected to a side wall of the fixed plate 5. An upper U-shaped plate 7 is provided on the pressing base 1. A pair of straight blocks 8 are provided on the upper U-shaped plate 7. Oblique blocks 9 are fixedly connected to side walls of the straight blocks 8. Extrusion grooves 10 are respectively formed through the top ends of the straight blocks 8 and the oblique blocks 9. A main push frame 11 is arranged inside the upper U-shaped plate 7. Side push plates 12 are arranged at both ends inside the upper U-shaped plate 7. Extrusion rods 13 are provided on the side push plates 12. The extrusion rods 13 are inserted inside the extrusion grooves 10. T-shaped grooves are respectively formed on the sides of the straight blocks 8 close to each other. Telescopic plates 25 are respectively slidably connected to both ends inside the main push frame 11. T-shaped blocks 14 are fixedly connected to the top ends of the telescopic plates 25 away from each other. The T-shaped blocks 14 are respectively slidably connected inside the T-shaped grooves; A displacement electric telescopic cylinder 17 is fixedly connected to a side wall of the L-shaped plate 3. The output end of the displacement electric telescopic cylinder 17 passes through the side wall of the L-shaped plate 3 and is fixedly connected with an insertion frame 18. An insertion block 19 for inserting into the insertion frame 18 is fixedly connected to a side wall of the collection box 4; A pair of lower U-shaped plates 15 are fixedly connected to a side wall of the upper U-shaped plate 7. A secondary push electric telescopic cylinder 16 is fixedly connected to a side wall of the lower U-shaped plate 15. The output end of the main push electric telescopic cylinder 6 passes through the side wall of the fixed plate 5 and is fixedly connected to the side wall of the upper U-shaped plate 7. The output end of the secondary push electric telescopic cylinder 16 passes through the inside of the lower U-shaped plate 15 and is fixedly connected with an adjustment frame 21. The straight blocks 8 are respectively slidably connected inside the adjustment frame 21; Side plates 22 are respectively slidably connected through both sides of the outer wall of the upper U-shaped plate 7 beside the main push frame 11. Through the arrangement of the side plates 22, the uncombined graphite can be pushed to move, ensuring that the graphite is stably pushed beside the collection box 4. A blocking block 24 is fixedly connected to the inside of the upper U-shaped plate 7. Through the arrangement of the blocking block 24, the sliding position of the main push frame 11 can be limited; During the pressing process of the nuclear graphite of high-temperature gas-cooled reactors, first, the graphite material to be pressed is placed in the pressing groove, and then the pressing assembly 2 is started to press the graphite material. After pressing, the formed graphite is ejected by the jacking assembly on the pressing base 1. Then, the main push electric telescopic cylinder 6 can be controlled to start to drive the upper U-shaped plate 7 to move. Then, the inside of the upper U-shaped plate 7 moves beside the ejected cylindrical graphite and beside the main push frame 11. Then, under the continuous drive of the main push electric telescopic cylinder 6, the main push frame 11 and the side plates 22 will simultaneously push the graphite to move, moving the graphite beside the collection box 4. Then, the secondary push electric telescopic cylinder 16 can be controlled to start to drive the adjustment frame 21, the straight blocks 8 and the oblique blocks 9 to move; At this time, the extrusion rod 13 on the side push plate 12 is inserted into the inclined groove in the extrusion groove 10. Then, with the lateral movement of the straight block 8 and the inclined block 9, the inclined end of the extrusion groove 10 will push the extrusion rod 13 to move, and at the same time drive the two side push plates 12 to move towards the middle, thereby pushing the graphite in the upper U-shaped plate 7 towards the middle until the graphite on both sides is combined with the graphite in the middle. (It should be noted here that since the graphite is first pushed by the main push frame 11 to move beside the collection box 4, when the side push plate 12 is pushing, the graphite is close to the main push frame 11 and the side plate 22. Therefore, during the pushing process of the side push plate 12, the graphite will move towards the middle along the main push frame 11 without tilting.) At the same time, the extrusion rod 13 slides from the inclined groove of the extrusion groove 10 to the straight section, thereby relieving the extrusion on the extrusion rod 13. And during this process, the T-shaped block 14 on the telescopic plate 25 will slide in the T-shaped groove. Thus, when the graphite is squeezed together, the T-shaped block 14 will move to the end of the T-shaped groove, and then move together with the straight block 8, thereby driving the main push frame 11 and the telescopic plate 25 to move, and pushing the combined graphite into the collection box 4, thus realizing the automatic sorting of graphite. Then, reverse the operation to reset; Finally, after the main push electric telescopic cylinder 6 operates multiple times and pushes multiple groups of graphite into the collection box 4, the displacement electric telescopic cylinder 17 can be controlled to start and drive the insertion frame 18 to move. Since the insertion block 19 is inserted into the insertion frame 18, the collection box 4 will be pulled to move at the same time, thereby changing the collection position of the collection box 4, facilitating the subsequent automatic collection of sorted graphite. Finally, when the graphite in the collection box 4 is full, lift the collection box 4 to pull out the insertion block 19 from the insertion frame 18, then insert the insertion block 19 on the new collection box 4 into the insertion frame 18, and control the displacement electric telescopic cylinder 17 to reset.

[0023] To improve the stability during the operation of the device, guide rods 20 are fixedly connected to the side walls of the side push plates 12, and the guide rods 20 penetrate through the outer wall of the upper U-shaped plate 7. Through the setting of the guide rods 20, the guide rods 20 can be driven to move together during the movement of the side push plates 12, thereby guiding the sliding of the side push plates 12 and improving the stability during the operation of the device. At the same time, the guide rods 20 are located inside the upper cylinder of the pressing assembly 2 and will not be blocked by the cylinder.

[0024] To ensure that the straight block 8 can drive the main push frame 11 to return together when reset, a magnet 27 is fixedly connected through the inner side of the T-shaped groove. The T-shaped block 14 is made of iron. When the T-shaped groove gradually moves beside the T-shaped block 14, the T-shaped block 14 will be pulled by the suction force of the magnet 27 to the inner side of the T-shaped groove. Then, under the continuous movement of the straight block 8, the T-shaped block 14, the telescopic plate 25 and the main push frame 11 can be pushed to move together, thereby pushing the combined graphite to move. And it should be noted here that when the magnet 27 can adsorb the T-shaped block 14, the extrusion rod 13 has moved from the inclined part of the extrusion groove 10 to the straight section at this time, and the side push plate 12 has completed the combination of the graphite. Therefore, during the subsequent reset process, when the straight block 8 is reset, it can pull the T-shaped block 14 to reset together. And after the main push frame 11 is reset, it will be restricted by the abutting block 24 and cannot follow the straight block 8 to reset together, so as to pull the T-shaped block 14 out of the magnet 27.

[0025] In summary, through the design of the above structure, the three cylindrical graphite workpieces after pressing can be automatically pushed out, and the three pieces of graphite can be pushed together. Then, the main push frame 11 is driven to push the three pieces of graphite into the collection box 4 for collection and processing together, so as to realize the automatic sorting and blanking of the pressed graphite, without the need for workers to place the formed graphite workpieces into the collection box 4 one by one, greatly improving the convenience performance of the device.

[0026] On the basis of the above embodiment, it is found during use that if the above structure is a fixed structure, it can only sort and blank the cylindrical graphite of the same size and cannot meet the needs of users. To solve the above problems, the above structure is further improved.

[0027] A pair of limit frames 23 are slidably connected to the top end of the upper U-shaped plate 7, and the straight block 8 is slidably connected to the inner side of the limit frames 23. A connecting block 26 is fixedly connected between the limit frames 23 and the top end of the side plate 22. Through the arrangement of the limit frames 23 and the connecting block 26, the position of the side plate 22 can be limited, ensuring that when adjusting the distance between the straight blocks 8, the side plate 22 can be driven to move through the limit frames 23 and the connecting block 26, and the position of the side plate 22 can be adjusted to avoid hindering the normal movement of the telescopic plate 25. A scale groove 31 is opened at the top end of one of the side plates 22. Through the arrangement of the scale groove 31, it is convenient to accurately know the adjusted distance of the straight block 8 and accurately adjust according to the diameter of the graphite, improving the convenience performance of the device; A bidirectional lead screw 29 is rotatably connected to the inner side of the adjustment frame 21. The side wall of the bidirectional lead screw 29 passes through the outer wall of the adjustment frame 21 and is fixedly connected with a rotating block 30. Through the arrangement of the rotating block 30, it is convenient to rotate the bidirectional lead screw 29 to adjust the distance between the straight blocks 8, and the bidirectional lead screw 29 is threadedly connected through the inner side wall of the straight block 8; There are three lower springs 32 fixedly connected between the telescopic plates 25. A chute is provided at the top end of the side push plate 12, and a number of positioning grooves 33 are equidistantly provided at the bottom end of the chute. The bottom end of the extrusion rod 13 is slidably connected to the inner side of the chute. A round hole is provided through the top end of the extrusion rod 13, and a positioning rod 34 is slidably connected in the round hole. The bottom end of the positioning rod 34 is inserted into the inner side of one of the positioning grooves 33. A positioning spring 28 is fixedly connected between the top end of the extrusion rod 13 and the outer wall of the positioning rod 34; When changing the size of the pressed graphite, first replace the mold on the pressing machine base 1 and the pressing part on the pressing assembly 2. Subsequently, first pull up the positioning rod 34 to pull out the bottom end of the positioning rod 34 from the positioning groove 33, and at the same time stretch the positioning spring 28 to release the sliding restriction on the extrusion rod 13. Then rotate the rotating block 30 to drive the bidirectional lead screw 29 to rotate, thereby driving the directly connected blocks 8 screwed thereon to move to both sides, and at the same time driving the inclined blocks 9 to move. And because the T-shaped block 14 is inserted in the T-shaped groove, the T-shaped block 14 and the telescopic plate 25 will be pulled to move, and gradually compress the lower spring 32. And during this process, through the movement of the directly connected block 8, the limiting frame 23 will be driven to move, and then the side plate 22 will be driven to move simultaneously through the connecting block 26 to change the position of the side plate 22. At the same time, through the movement of the inclined block 9, the extrusion rod 13 will be pushed to slide in the chute through the extrusion groove 10 to change the position of the extrusion rod 13 on the side push plate 12. Then after the adjustment is completed, release the positioning rod 34, and insert the bottom end of the positioning rod 34 into the corresponding positioning groove 33 under the elastic force of the positioning spring 28 to limit the position of the extrusion rod 13, thus completing the adjustment of the extrusion distance of the side push plate 12.

[0028] In summary, through the design of the above structure, the distance for squeezing three pieces of graphite to move towards the middle can be adjusted according to the diameter of the pressed cylindrical graphite, and at the same time, the length of the main push frame 11 can be changed. Furthermore, cylindrical graphite with different diameters can be pushed into the collection box 4, thereby sorting and collecting graphite in various specifications, greatly improving the general performance of the device.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention.

[0030] Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. Pressing device for processing nuclear graphite materials of high-temperature gas-cooled reactors, comprising a pressing machine base (1), wherein a pressing assembly (2) for pressing graphite materials is arranged on the pressing machine base (1), and it is characterized in that: The side wall of the pressing base (1) is fixedly connected with an L-shaped plate (3), a collecting box (4) is arranged on the L-shaped plate (3), the top end of the pressing base (1) is fixedly connected with a fixing plate (5), the side wall of the fixing plate (5) is fixedly connected with a main pushing electric telescopic cylinder (6), an upper U-shaped plate (7) is arranged on the pressing base (1), a pair of straight blocks (8) are arranged on the upper U-shaped plate (7), inclined blocks (9) are fixedly connected to the side walls of the straight blocks (8), extrusion grooves (10) are respectively formed through the top ends of the straight blocks (8) and the inclined blocks (9), a main pushing frame (11) is arranged inside the upper U-shaped plate (7), side pushing plates (12) are arranged at both ends inside the upper U-shaped plate (7), extrusion rods (13) are arranged on the side pushing plates (12), and the extrusion rods (13) are inserted inside the extrusion grooves (10). T-shaped grooves are respectively formed on the closer sides of the straight blocks (8), telescopic plates (25) are respectively slidably connected to both ends inside the main pushing frame (11), T-shaped blocks (14) are fixedly connected to the top ends of the telescopic plates (25) away from each other, and the T-shaped blocks (14) are respectively slidably connected inside the T-shaped grooves.

2. The pressing device for processing nuclear graphite materials of a high-temperature gas-cooled reactor according to claim 1, wherein: A displacement electric telescopic cylinder (17) is fixedly connected to the side wall of the L-shaped plate (3), the output end of the displacement electric telescopic cylinder (17) passes through the side wall of the L-shaped plate (3) and is fixedly connected with an insertion frame (18), and an insertion block (19) for inserting into the insertion frame (18) is fixedly connected to the side wall of the collecting box (4).

3. The pressing device for processing nuclear graphite materials of a high-temperature gas-cooled reactor according to claim 1, characterized in that: A pair of lower U-shaped plates (15) are fixedly connected to the side wall of the upper U-shaped plate (7), a secondary pushing electric telescopic cylinder (16) is fixedly connected to the side wall of the lower U-shaped plate (15), the output end of the main pushing electric telescopic cylinder (6) passes through the side wall of the fixing plate (5) and is fixedly connected to the side wall of the upper U-shaped plate (7), the output end of the secondary pushing electric telescopic cylinder (16) passes through the inside of the lower U-shaped plate (15) and is fixedly connected with an adjusting frame (21), and the straight blocks (8) are respectively slidably connected inside the adjusting frame (21).

4. The pressing device for processing nuclear graphite materials of high-temperature gas-cooled reactors according to claim 1, wherein: Guide rods (20) are fixedly connected to the side walls of the side pushing plates (12), and the guide rods (20) penetrate through the outer wall of the upper U-shaped plate (7).

5. The pressing device for processing nuclear graphite materials of a high-temperature gas-cooled reactor according to claim 1, characterized in that: Side plates (22) are respectively slidably connected through the two sides of the outer wall of the upper U-shaped plate (7) beside the main pushing frame (11), a pair of limiting frames (23) are slidably connected to the top end of the upper U-shaped plate (7), the straight blocks (8) are slidably connected inside the limiting frames (23), a resisting block (24) is fixedly connected to the inside of the upper U-shaped plate (7), a connecting block (26) is fixedly connected between the top ends of the limiting frames (23) and the side plates (22), and a scale groove (31) is formed in the top end of one of the side plates (22).

6. The pressing device for processing high-temperature gas-cooled reactor nuclear graphite materials according to claim 1, wherein: Magnets (27) are fixedly connected through the inside of the T-shaped grooves, and the T-shaped blocks (14) are made of iron.

7. The pressing device for processing nuclear graphite materials of a high-temperature gas-cooled reactor according to claim 3, characterized in that: A bidirectional lead screw (29) is rotatably connected to the inside of the adjusting frame (21), the side wall of the bidirectional lead screw (29) passes through the outer wall of the adjusting frame (21) and is fixedly connected with a rotating block (30), and the bidirectional lead screw (29) is threadedly connected through the inner side wall of the straight block (8).

8. The pressing device for processing nuclear graphite materials of a high-temperature gas-cooled reactor according to claim 1, characterized in that: Three lower springs (32) are fixedly connected between the telescopic plates (25). A sliding groove is formed at the top end of the side push plate (12), and a number of positioning grooves (33) are equidistantly formed at the bottom end of the sliding groove. The bottom end of the extrusion rod (13) is slidably connected to the inner side of the sliding groove. A round hole is formed through the top end of the extrusion rod (13), and a positioning rod (34) is slidably connected in the round hole. The bottom end of the positioning rod (34) is inserted into the inner side of one of the positioning grooves (33). A positioning spring (28) is fixedly connected between the top end of the extrusion rod (13) and the outer wall of the positioning rod (34).

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