Material turning device and equipment for carbon extrusion production

Abstract

The invention discloses a material turning device and equipment for carbon extrusion production, belonging to the technical field of extruders. A plurality of first through holes are provided on a pressure head of a carbon extruder. The material turning device comprises a pressing plate, a plurality of heating plates and a plurality of material turning units, wherein the size and shape of the pressing plate match those of the pressure head, a plurality of second through holes equal to the diameter of the first through holes are provided on the pressing plate, the pressing plate is fixedly arranged on the pressure head, and the second through holes are aligned with the first through holes; a plurality of heating plates are arranged between the pressing plate and the pressure head; a plurality of material turning units are arranged at intervals between the plurality of heating plates, one end of which is located inside a hollow extrusion rod on one side of the pressure head of the carbon extruder, and the other end of which is located inside the first through hole and the second through hole. When in working state, the plurality of material turning units can be extended and retracted along the channel formed by the extrusion rod, the first through hole and the second through hole to loosen the originally compacted carbon raw material, so that the newly extruded carbon raw material can be fully connected with the originally compacted carbon raw material.

Description

Technical Field

[0001] The invention relates to the technical field of extruders, and in particular to a material turning device and equipment used in carbon extrusion production. Background Art

[0002] During carbon extrusion production, after each tamping, pre-pressing and extrusion, the baffle in the pressure head compacts the carbon raw materials in the material chamber. When the raw materials are added next time, since the end face of the compacted carbon raw materials is a smooth plane, the new carbon raw materials cannot be fully connected with the original compacted raw materials, and it is easy to form material stratification. After extrusion molding, the contact parts of the multiple compacted carbon raw materials of the extruded product are prone to cracks and other defects, causing the extruded products to become scrapped, seriously affecting the quality of the extruded products. Summary of the invention

[0003] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the present invention provides a material turning device and equipment for carbon extrusion production, which can make the end faces of multiple extruded carbon raw materials fully contact, avoid the formation of crack defects between the contacting end faces, and the extruded products are of high quality.

[0004] The technical solution of the present invention is as follows:

[0005] In a first aspect, the present invention discloses a material turning device for carbon extrusion production, wherein a plurality of first through holes are provided on a pressure head of a carbon extruder, and the material turning device comprises:

[0006] A pressing plate, the size and shape of which match those of the pressing head, a plurality of second through holes having the same diameter as that of the first through holes are formed on the pressing plate, the pressing plate is fixedly disposed on the pressing head, and the second through holes are aligned with the first through holes;

[0007] A plurality of heating plates, wherein the plurality of heating plates are arranged between the pressing plate and the pressing head;

[0008] A plurality of material turning units, wherein the plurality of material turning units are fixedly arranged on the pressure head, the plurality of material turning units are arranged at intervals between the plurality of heating plates, one end of the plurality of material turning units is located inside the hollow extrusion rod on one side of the carbon extruder pressure head, and the other end of the plurality of material turning units is located inside the first through hole and the second through hole;

[0009] When in working state, the plurality of turning units can extend and retract along the channel formed by the extrusion rod, the first through hole and the second through hole to loosen the originally compacted carbon raw material, so that the newly extruded carbon raw material can be fully connected with the originally compacted carbon raw material.

[0010] Furthermore, in the above-mentioned material turning device for carbon extrusion production, the first through holes are distributed in an array around the geometric center of the end face of the pressing head.

[0011] Furthermore, in the above-mentioned material turning device for carbon extrusion production, a temperature measuring element is arranged on the pressure head.

[0012] Furthermore, in the above-mentioned material turning device for carbon extrusion production, a first sealing member is provided between the pressing head and the pressing plate.

[0013] Furthermore, in the above-mentioned material turning device for carbon extrusion production, the material turning unit comprises:

[0014] A cylinder, wherein the cylinder is disposed through the first through hole and the second through hole, one end of the cylinder is fixedly connected to the pressing plate through a connecting piece, and one end surface of the cylinder is flush with the outer end surface of the pressing plate;

[0015] A reamer, the reamer is arranged in the barrel, and the reamer comprises a positioning connection portion, a guide portion and a spiral cutter head in sequence from the cutter tail to the cutter head, wherein the spiral cutter head of the reamer is flush with the outer end surface of the pressing plate in a natural state;

[0016] A support, wherein the support is configured as a hollow structure, and one end surface of the support is fixedly connected to the other end of the cylinder;

[0017] An electric rotary push rod is fixedly arranged on the support, and is fixedly connected to the positioning connection part of the reamer. During the rotation of the electric rotary push rod, the reamer can be driven to rotate and can also be driven to perform telescopic movement in the cylinder.

[0018] Furthermore, in the above-mentioned material turning device for carbon extrusion production, multiple bearings are sleeved on the guide part of the reamer, and support members are arranged between the multiple bearings, and the arranged support members are respectively fixedly connected to the inner rings and outer rings of the multiple bearings.

[0019] Furthermore, in the above-mentioned material turning device for carbon extrusion production, a dust ring is provided on the guide portion of the reamer.

[0020] Furthermore, in the above-mentioned material turning device for carbon extrusion production, a second sealing member is provided on the outer periphery of the guide portion of the reamer.

[0021] Furthermore, in the above-mentioned material turning device for carbon extrusion production, both the first seal and the second seal are high temperature resistant seals.

[0022] In a second aspect, the present invention further provides a device, on which the above-mentioned material turning device for carbon extrusion production is provided.

[0023] The main advantages of the technical solution of the present invention are as follows:

[0024] The material turning device for carbon extrusion production of the present invention loosens the original compacted carbon raw material by arranging multiple material turning units on the pressure head of the carbon extruder, so that the newly extruded carbon raw material can be fully connected with the loosened original compacted carbon raw material, thereby enabling the end faces of multiple extruded carbon raw materials to fully contact, avoiding the formation of crack defects between the contacting end faces, and improving the quality of the extruded products. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the embodiments of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 This is a schematic structural diagram of a material turning device for carbon extrusion production according to an embodiment of the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of the structure in the middle A direction;

[0028] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the middle BB;

[0029] Figure 4 It is a structural schematic diagram of a material turning unit in a material turning device for carbon extrusion production according to an embodiment of the present invention;

[0030] Figure 5 It is a schematic structural diagram of the state of loosening the originally compacted carbon raw material by using a material turning device for carbon extrusion production according to one embodiment of the present invention;

[0031] Figure 6 It is a schematic diagram of the original compacted carbon raw material and the smooth plane structure formed after compaction in the prior art.

[0032] Description of reference numerals:

[0033] 11. reamer; 11-1. spiral cutter head; 11-2. guide portion; 11-3. positioning connection portion;

[0034] 12. Cylinder; 13. Second screw; 14. Rubber sealing plug; 15. Third sealing member; 16. Second sealing member; 17. Outer long support frame; 18. Inner long support frame; 19. Outer short support frame; 20. Inner short support frame; 21. Bearing; 22. Support; 23. Dustproof ring; 24. Coupling; 25. Third screw; 26. Electric rotary push rod;

[0035] 61. Press head; 62. Press plate; 63. Extrusion rod; 64. Guide ring; 65. Fourth screw; 66. First screw; 67. First sealing member; 68. Heating plate; 69. Temperature measuring element;

[0036] 71. Material chamber; 81. Compacted carbon raw materials; 81-1. Smooth surface formed by compacted carbon raw materials. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] The technical solution provided by the embodiments of the present invention is described in detail below with reference to the accompanying drawings.

[0039] As attached Figure 1-5 As shown, an embodiment of the present invention provides a material turning device for carbon extrusion production, a plurality of first through holes are opened on the pressure head 61 of the carbon extruder, and the material turning device includes: a pressing plate 62, a plurality of heating plates 68 and a plurality of material turning units, wherein:

[0040] The size and shape of the pressing plate 62 match those of the pressing head 61. A plurality of second through holes with the same diameter as the first through holes are provided on the pressing plate 62. The pressing plate 62 is fixedly disposed on the pressing head 61, and the second through holes are aligned with the first through holes. A plurality of heating plates 68 are disposed between the pressing plate 62 and the pressing head 61. A plurality of turning units are fixedly disposed on the pressing head 61, and a plurality of turning units are disposed at intervals between the plurality of heating plates 68. One end of the plurality of turning units is located inside the hollow extrusion rod 63 on one side of the carbon extruder pressing head 61, and the other end of the plurality of turning units is located inside the first through hole and the second through hole. When in working state, the plurality of turning units can extend and retract along the channel formed by the extrusion rod 63, the first through hole and the second through hole to loosen the originally compacted carbon raw material 81, so that the newly extruded carbon raw material can be fully connected with the originally compacted carbon raw material 81.

[0041] Therefore, the material turning device for carbon extrusion production of the present invention loosens the original compacted carbon raw material 81 by arranging multiple material turning units on the pressure head 61 of the carbon extruder, loosens the original compacted carbon raw material 81 into a loose state and loosens its end face into a non-smooth plane, so that the newly extruded carbon raw material can be fully connected with the loosened original compacted carbon raw material 81 through the loose non-smooth plane, so that the end faces of multiple extruded carbon raw materials can be fully contacted, avoiding the formation of crack defects between the contacting end faces, and improving the quality of the extruded products.

[0042] Specifically, a plurality of heating plates 68 are provided. On the one hand, the carbon raw material is heated evenly. On the other hand, the structure of the heating plate 68 enables the heating plate 68 to contact the surface of the pressing plate 62, thereby achieving a better heating effect and a shorter heating time in the same time, thereby improving the extrusion efficiency of the carbon raw material.

[0043] Specifically, in the material turning device for carbon extrusion production of the present invention, in order to avoid damage to the original compacted carbon raw material 81 due to the over-concentrated distribution of multiple material turning units during the loosening process, it is preferred to distribute the first through holes in an array around the geometric center of the end face of the pressure head 61.

[0044] Specifically, in the material turning device for carbon extrusion production of the present invention, in order to facilitate the detection of the temperatures of the pressure head 61 and the pressure plate 62 , a temperature measuring element 69 is provided on the pressure head 61 .

[0045] In some optional implementations of the present embodiment, the above-mentioned temperature measuring element 69 is set as a thermocouple. On the one hand, the thermocouple has a simple structure, occupies a small space, and is easy to install and measure. On the other hand, the measurement result is accurate, so that the temperature of the pasty carbon raw material can be better controlled during the extrusion process, thereby better ensuring the extrusion molding of the carbon raw material.

[0046] Furthermore, in the material turning device for carbon extrusion production of the present invention, in order to avoid the waste of carbon raw materials caused by the paste-like carbon raw materials entering between the pressure head 61 and the pressure plate 62 due to force during the extrusion process, and at the same time to avoid the carbon raw materials from condensing between the pressure head 61 and the pressure plate 62 and being difficult to clean, thereby reducing the loosening effect of the material turning device, a first sealing member 67 is provided between the pressure head 61 and the pressure plate 62.

[0047] Specifically, in the material turning device for carbon extrusion production of the present invention, the material turning unit includes: a cylinder 12, a reamer 11, a support 22 and an electric rotary push rod 26, wherein:

[0048] The cylinder 12 is arranged through the first through hole and the second through hole, one end of the cylinder 12 is fixedly connected to the pressure plate 62 through a connecting piece, and one end face of the cylinder 12 is flush with the outer end face of the pressure plate 62; the reamer 11 is arranged in the cylinder 12, and the reamer 11 includes a positioning connection part 11-3, a guide part 11-2 and a spiral cutter head 11-1 from the tail to the head, wherein the spiral cutter head 11-1 of the reamer 11 is flush with the outer end face of the pressure plate 62 in the natural state; the support 22 is arranged as a hollow structure, and one end face of the support 22 is fixedly connected to the other end of the cylinder 12; the electric rotating push rod 26 is fixedly arranged on the support 22, and the electric rotating push rod 26 is fixedly connected to the positioning connection part 11-3 of the reamer 11, and the electric rotating push rod 26 can drive the reamer 11 to rotate and can also drive the reamer 11 to perform telescopic movement in the cylinder 12 during rotation.

[0049] It should be noted that in order to prevent more carbon raw materials from entering the spiral cutter head 11-1 of the reamer 11 and affecting the loosening effect of the reamer 11, and at the same time to ensure the extrusion effect of the carbon raw materials, the end face of the spiral cutter head 11-1 of the above-mentioned reamer 11 is flush with the outer end face of the pressure plate 62 in the natural state.

[0050] In some optional implementations of the present embodiment, in order to facilitate the maintenance of the material turning device of the present invention and to facilitate disassembly and installation, the various components in the present invention are connected in a threaded manner, such as connecting the pressure plate 62 and the pressure head 61 by a first screw 66, connecting the cylinder 12 and the pressure head 61 by a second screw 13, connecting the electric rotary push rod 26 and the support 22 by a third screw 25, and connecting the pressure head 61 and the extrusion rod 63 by a fourth screw 65. At the same time, in order to avoid the difficulty of disassembly caused by the carbon raw material entering the head of the second screw 13 under the extrusion force during the extrusion of the carbon raw material, and the inability to repair the material turning unit, the first through hole is set as a countersunk hole, and the second screw 13 is set as a countersunk bolt with a tenon. Therefore, a countersunk bolt with a tenon corresponding to it is set on the countersunk hole, and a rubber sealing plug 14 is set on the head of the countersunk bolt with a tenon, so that the outermost end face of the rubber sealing plug 14 is flush with the outer end face of the pressure plate 62.

[0051] In some optional implementations of the present embodiment, the positioning connection portion 11 - 3 of the reamer 11 is connected to the electric rotary push rod 26 via a coupling 24 .

[0052] Furthermore, in order to prevent the carbon raw material from entering the interior of the pressure head 61 and the material turning unit during the compression process of the material turning device for carbon extrusion production of the present invention, a third sealing member 15 is provided between the cylinder 12 and the pressing plate 62 .

[0053] In order to make the pressure head 61 and the pressure plate 62 more firmly and tightly connected under the first screw 66, a guide ring 64 with an elastic ring structure is arranged between the pressure head 61 and the pressure plate 62, so that the guide ring 64 is compressed during the connection process of the pressure head 61 and the pressure plate 62, thereby preventing the squeezed carbon raw material from entering the pressure head 61 and the interior of the material turning unit through the gap between the pressure head 61 and the pressure plate 62 while the pressure head 61 and the pressure plate 62 are tightly connected.

[0054] In some optional implementations of the present embodiment, the guide ring 64 may be made of copper alloy, and a gap of 1-2 mm may be provided between the outer periphery of the guide ring 64 and the inner wall of the material chamber 71 to facilitate relative movement of the two while preventing material leakage.

[0055] Specifically, in the turning device for carbon extrusion production of the present invention, in order to enable the turning unit to extend and retract along the channel formed by the extrusion rod 63, the first through hole and the second through hole during the turning process, and to avoid the reamer 11 from deforming during the extrusion of the carbon raw material and causing the loosening effect to be reduced, a plurality of bearings 21 are sleeved on the guide portion 11-2 of the reamer 11, and support members are provided between the plurality of bearings 21 and at both ends. The provided support members are respectively fixedly connected to the inner rings and outer rings of the plurality of bearings 21, so that the whole formed by the bearings 21 and the support members plays a guiding role in the extension and retraction of the reamer 11.

[0056] In some optional implementations of the present embodiment, the number of the bearings 21 may be set to two, and a support member may be provided between the two bearings 21 and at both ends.

[0057] In some other optional implementations of this embodiment, the above-mentioned bearings 21 and the supporting members arranged between the bearings 21 can be configured as linear bearings or sleeves.

[0058] Specifically, the above-mentioned support members include an outer short support frame 19, an inner short support frame 20, an outer long support frame 17 and an inner long support frame 18 of an annular structure fixedly connected to the inner and outer rings of the bearing 21, which play the role of fixing the inner and outer rings of the bearing 21.

[0059] Specifically, in the material turning device for carbon extrusion production of the present invention, in order to prevent impurities and the like from entering the bearing 21 and the support along the guide portion 11-2 of the reamer 11 and affecting the loosening effect of the reamer 11, a dust ring 23 is provided on the guide portion 11-2 of the reamer 11.

[0060] It can be understood that the diameter of the above-mentioned dust ring 23 is larger than the diameter of the inner ring of the bearing 21; at the same time, in order to ensure that the reamer 11 has sufficient telescopic length to loosen the compacted carbon raw material, the distance from the dust ring 23 on the reamer 11 to the nearest bearing 21 is greater than the distance that the spiral cutter head 11-1 of the reamer 11 extends along the first through hole and the second through hole. This arrangement allows the reamer 11 to avoid collision and interference with the bearing 21 during the telescopic process.

[0061] Specifically, in the material turning device for carbon extrusion production of the present invention, since the carbon raw material is in a paste-like state, the cross-section of the spiral cutter head 11-1 of the reamer 11 is not a regular perfect circle. In the process of extruding the carbon raw material, the carbon raw material will inevitably enter the knife groove of the spiral cutter head 11-1 where the reamer 11 is located due to the force. In order to prevent the carbon raw material from entering the guide portion 11-2 and the positioning connection portion 11-3 of the reamer 11 along the spiral cutter head 11-1 of the reamer 11 and then entering the interior of the cylinder 12 during the extrusion process, thereby avoiding waste of carbon raw material and preventing the carbon raw material from condensing in the guide portion 11-2 of the reamer 11 and its interior and being difficult to clean, thereby reducing the loosening effect of the material turning device, a second sealing member 16 is provided on the outer periphery of the guide portion 11-2 of the reamer 11.

[0062] Specifically, in the material turning device for carbon extrusion production of the present invention, the pressing plate 62 and the pressure head 61 are heated by the heating plate 68 during the extrusion of the carbon raw material. In order to avoid damage to the first seal 67 and the second seal 16 during the heating of the pressure head 61 and the pressing plate 62 by the heating plate 68, causing the first seal 67 and the second seal 16 to lose their sealing effect, so that the extruded carbon coating enters the inside of the pressure head 61 due to the extrusion force, causing blockage of the material turning unit, etc., the first seal 67 and the second seal 16 are both set to be high temperature resistant seals.

[0063] In some optional implementations of the present embodiment, since the temperature range of the carbon raw material under heat extrusion molding is 110-160 degrees Celsius, all seals in the present invention including the first seal 67 and the second seal 16 are made of fluororubber material. Since it can withstand high temperatures of at least 200 degrees Celsius, it meets the temperature requirements of the present invention, is easy to install and disassemble, and has low cost.

[0064] Therefore, the temperature of the pressure head 61 and the pressure plate 62 can be measured by the above-mentioned temperature measuring element 69, and it is also possible to prevent the first seal 67 and the second seal 16 from being damaged due to high temperature and failing to perform a sealing function, resulting in the carbon raw materials entering the material turning device during the extrusion process of the carbon raw materials, causing congestion in the material turning device, thereby solving the problem of poor operation of the material turning device.

[0065] Combination Figure 6As shown, the principle of the material turning device for carbon extrusion production of the present invention is further explained below:

[0066] During operation, the hydraulic cylinder of the extruder drives the extrusion rod 63 to push the pressure head 61 close to the material chamber 71 and the carbon raw material, and stops when it reaches the preset distance. At this time, the electric rotary push rod 26 works. Driven by the electric rotary push rod 26, the spiral cutter head 11-1 of the reamer 11 rotates forward, thereby loosening the compacted carbon raw material 81 around it into a loose state, and changing the smooth plane 81-1 formed by the compacted carbon raw material into a non-smooth plane; after the work is completed, the electric rotary push rod 26 is reset, and the spiral cutter head 11-1 rotates backward and stops at the initial position. Repeat the above actions so that the newly added carbon raw material can be fully integrated with the original compacted carbon raw material, so that the newly extruded carbon raw material can be fully connected with the original compacted carbon raw material 81.

[0067] Specifically, the above-mentioned preset distance is preferably 10-20 mm, so that when the turning unit of the present invention loosens the originally compacted carbon raw material 81, it can ensure the loosening effect while reducing the telescopic stroke of the reamer 11 and improving the loosening efficiency; at the same time, in order to further shorten the stroke of the reamer 11 and improve the loosening efficiency, the above-mentioned preset distance can be set to 5-10 mm.

[0068] In a second aspect, the present invention further provides a device on which the above-mentioned material turning device for carbon extrusion production is provided.

[0069] As a result, the equipment can fully fuse and connect the newly extruded raw materials with the previously extruded raw materials during the extrusion operation, thereby ensuring the quality of the extruded raw materials.

[0070] It should be noted that, in this article, 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 such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A material turning device for carbon extrusion production, characterized in that: A plurality of first through holes are provided on the pressure head of the carbon extruder, and the material turning device comprises: A pressing plate, the size and shape of which match those of the pressing head, a plurality of second through holes having the same diameter as that of the first through holes are formed on the pressing plate, the pressing plate is fixedly disposed on the pressing head, and the second through holes are aligned with the first through holes; A plurality of heating plates, wherein the plurality of heating plates are arranged between the pressing plate and the pressing head; A plurality of material turning units, wherein the plurality of material turning units are fixedly arranged on the pressure head, the plurality of material turning units are arranged at intervals between the plurality of heating plates, one end of the plurality of material turning units is located inside the hollow extrusion rod on one side of the carbon extruder pressure head, and the other end of the plurality of material turning units is located inside the first through hole and the second through hole; When in working state, the plurality of turning units can extend and retract along the channel formed by the extrusion rod, the first through hole and the second through hole to loosen the originally compacted carbon raw material, so that the newly extruded carbon raw material can be fully connected with the originally compacted carbon raw material.

2. The material turning device for carbon extrusion production according to claim 1 is characterized in that: The first through holes are distributed in an array around the geometric center of the pressure head end surface.

3. The material turning device for carbon extrusion production according to claim 1 is characterized in that: A temperature measuring element is arranged on the pressure head.

4. The material turning device for carbon extrusion production according to claim 1 is characterized in that: A first sealing member is disposed between the pressure head and the pressure plate.

5. The material turning device for carbon extrusion production according to claim 4 is characterized in that: The turning unit comprises: A cylinder, wherein the cylinder is disposed through the first through hole and the second through hole, one end of the cylinder is fixedly connected to the pressing plate through a connecting piece, and one end surface of the cylinder is flush with the outer end surface of the pressing plate; A reamer, the reamer is arranged in the barrel, and the reamer comprises a positioning connection portion, a guide portion and a spiral cutter head in sequence from the cutter tail to the cutter head, wherein the spiral cutter head of the reamer is flush with the outer end surface of the pressing plate in a natural state; A support, wherein the support is configured as a hollow structure, and one end surface of the support is fixedly connected to the other end of the cylinder; An electric rotary push rod is fixedly arranged on the support, and is fixedly connected to the positioning connection part of the reamer. During the rotation of the electric rotary push rod, the reamer can be driven to rotate and can also be driven to perform telescopic movement in the cylinder.

6. The material turning device for carbon extrusion production according to claim 5 is characterized in that: A plurality of bearings are sleeved on the guide portion of the reamer, and a support member is arranged between the plurality of bearings. The arranged support members are respectively fixedly connected to the inner rings and outer rings of the sleeved plurality of bearings.

7. The material turning device for carbon extrusion production according to claim 5 is characterized in that: A dust ring is arranged on the guide portion of the reamer.

8. The material turning device for carbon extrusion production according to claim 5 is characterized in that: A second sealing member is disposed on the outer periphery of the guide portion of the reamer.

9. The material turning device for carbon extrusion production according to claim 8, characterized in that: The first sealing member and the second sealing member are both high temperature resistant sealing members.

10. A device, characterized in that: The equipment is provided with a material turning device for carbon extrusion production as described in claims 1 to 9 above.

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