A cutting device for preparing cathode carbon blocks

Abstract

The present invention discloses a cutting device for preparing cathode carbon blocks, which relates to the field of cathode carbon block preparation, and includes a driving support seat, the upper end of which is installed with a docking support member docked by a hydraulic rod structure, and the docking support member can be laterally displaced along the upper end of the driving support seat through the hydraulic structure; a cutting assembly is installed inside the docking support member, and a suction pipe is installed through the upper end of the docking support member, and the end of the suction pipe is docked with a negative pressure suction device, and an active adaptive self-sealing structure is arranged inside the docking support member. The cutting device for preparing cathode carbon blocks allows the cutting assembly to perform self-sealing dust removal on the dust at the cutting part of the package through the suction pipe docked with the suction device during the cutting process, and efficiently handles the violent carbon fragments generated under high-speed rotation, which will not splash onto various working platforms and users, and performs negative pressure sealed dust removal to ensure the overall working environment.

Description

Technical Field

[0001] The invention relates to the technical field of cathode carbon block preparation, and in particular to a cutting device for cathode carbon block preparation. Background Art

[0002] Cathode carbon blocks are carbon block materials made of high-quality anthracite, coke, graphite, etc., used as cathodes of aluminum electrolytic cells. During the preparation process, the cathode carbon blocks need to go through a process such as cutting to form the cathode carbon blocks in preparation.

[0003] For example, an anode carbon block cutting device with publication number CN218196101U includes a frame, a rotating shaft is provided in the middle of the frame, the rotating shaft is driven by a servo motor, a first clamping plate and a second clamping plate are provided in the middle of the rotating shaft for clamping the anode carbon block, and the first clamping plate and the second clamping plate can rotate with the rotating shaft, a driving shaft is provided on one side of the rotating shaft, a plurality of cutting wheels are provided on the driving shaft, and the anode carbon block is driven to rotate at a uniform speed and cut by the cutting wheel through the rotation of the rotating shaft. The first clamping plate and the second clamping plate are provided on the rotating shaft, which can rotate with the rotating shaft, and the anode carbon block is clamped by the first clamping plate and the second clamping plate and driven to rotate, which has a good clamping and stabilizing effect for the strip-shaped anode carbon block; during the rotation process, the anode carbon block is driven to rotate and contact with the cutting wheel through the rotation, thereby cutting the strip-shaped anode carbon block;

[0004] Another example is a carbon block flat cutting device with publication number CN212399976U, comprising a base plate, pillars are evenly distributed around the lower surface of the base plate, and slide seats are symmetrically arranged at the left and right ends of the upper surface of the base plate, and the upper end of the slide seat is slidably connected with a slider, and the slider is fixedly connected to the fixed block through a hydraulic telescopic rod arranged on the front side thereof, and the fixed block is fixed to the front upper surface of the slide seat, and a hydraulic lifting column is fixed to the upper surface of the slider, and an adjustment box is fixed to the upper end of the hydraulic lifting column, and a lead screw is arranged in the adjustment box, and an adjustment block is threadedly connected to the outer side of the lead screw, and the right end of the lead screw passes through the adjustment box and is connected to the output end of the first motor, and the lower end of the adjustment block is connected to the second motor, and a cutting blade is connected to the output shaft of the second motor, and a scale plate is fixed to the right side of the left end slider. The carbon block flat cutting device can ensure the flatness of the cut surface, reduce the labor intensity of workers, and can accurately control the cutting height;

[0005] For example, a combined anode carbon block slotting device with publication number CN108789877A includes a machine base, a water cutting device, an automatic fixing device, a mechanical cutting device and a control system; the water cutting device and the mechanical cutting device are both slidably mounted on the machine base; the automatic fixing device is slidably connected in the machine base and can pass through the water cutting device and the mechanical cutting device; the water cutting device is provided with a water jet nozzle and a numerical control operation platform; the mechanical cutting device is provided with a soundproof cover; the water cutting and mechanical cutting are combined and applied to the anode carbon block exhaust slot slotting device to reduce noise, reduce equipment load, and optimize the production and manufacturing process;

[0006] Most of the above-mentioned comparative documents improve their overall cutting structure through auxiliary cutting structures, while the existing cutting devices for preparing cathode carbon blocks will produce violent carbon fragments during operation. Under the high-speed rotation of the cutting machine, the dusty carbon fragments will still splash onto various work platforms and users even if they are processed by the suction structure, and negative pressure sealed dust removal treatment cannot be performed, resulting in a poor overall working environment and certain usage limitations. Summary of the invention

[0007] The object of the present invention is to provide a cutting device for preparing cathode carbon blocks, so as to solve the problem mentioned in the above background technology that during the operation, violent carbon fragments will be generated. Under the high-speed rotation of the cutting machine, the dusty carbon fragments will still splash onto various work platforms and users even if they are processed by the suction structure, and negative pressure sealed dust removal treatment cannot be performed, resulting in a poor overall working environment.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: A cathode carbon block preparation cutting device, comprising a driving support seat, the upper end of which is provided with a docking support member docked by a hydraulic structure, and the docking support member can be laterally displaced along the upper end of the driving support seat by the hydraulic structure;

[0009] A cutting assembly is installed inside the docking support, and a suction pipe is installed through the upper end of the docking support, and the end of the suction pipe is docked with the negative pressure structure. A first friction docking piece is fixed to the inner wall of the docking support, and a second friction docking piece is fixedly connected to the outer side of the cutting assembly. An active adaptive self-sealing structure is arranged inside the docking support to perform sealed impurity adsorption treatment on the surface of the contacting carbon block through adaptive contact;

[0010] The lower end of the docking support is also provided with an auxiliary expansion structure, through which the adsorption range of the entire docking support is adaptively expanded, and the violent carbon fragments generated under high-speed rotation are efficiently processed without splashing onto various work platforms and users.

[0011] Furthermore, the self-sealing structure is provided with a heat conduction sheet, and a docking heat conductive part is fixed on the outer side of the heat conduction sheet, and the heat conduction sheet contacts the outer sides of the first friction docking part and the second friction docking part, a heated air bag is bonded to the inner side of the docking support, and a docking movable part is docked at the lower end of the heated air bag, and the docking movable part is nested and docked along the inner side of the docking support, a guide groove is provided at the inner lower end of the docking support, and a preset piston part is nested and installed on the inner side of the guide groove, and the preset piston part and the lower end of the docking movable part are nested and docked with each other.

[0012] Furthermore, the lower end of the docking support member is adhesively connected to a docking corrugated support flexible member, and the docking support member is docked with a transverse docking seal through the lower end of the docking corrugated support flexible member, the outer side of the transverse docking seal is docked with a flexible docking layer, and the outer side of the flexible docking layer is docked with a longitudinal docking seal, and at the same time, the upper end of the longitudinal docking seal is docked with the lower end of the docking support member through the docking corrugated support flexible member, so that the guide groove supplies negative pressure to the inside of the docking corrugated support flexible member through the air supply channel, and drives the transverse docking seal to move down to adaptively contact with the surface of the workpiece to be cut through the expanded docking corrugated support flexible member.

[0013] Furthermore, a gas delivery channel is connected to the inner side of the docking support member, and the lower end of the gas delivery channel is connected to the inner side of the docking corrugated support flexible member, and a second spring is fixed between the transverse docking seal and the lower end of the docking support member;

[0014] A first spring is fixed on the inner side of the transverse docking seal, and the lower end of the first spring is docked with a fitting sealing piston, the upper end of the fitting sealing piston is docked with a first traction rope, and the upper end of the first traction rope is docked with the lower end of the docking support.

[0015] Furthermore, when the cutting assembly rotates, the first friction docking part on its outer side is moved in contact with the second friction docking part, generating high temperature which is transferred to the copper docking heat conductive part to the copper heat conductive sheet, causing the heated airbag on its inner side to expand and push the docking movable part and the preset piston part to move downward synchronously.

[0016] Furthermore, the downward movement of the preset piston member creates a negative pressure inside the guide groove, causing it to push the docking corrugated support flexible member to expand and drive the transverse docking seal to move downward. The first traction rope inside the transverse docking seal is forced to drive the sealing piston member to move upward along the inside of the transverse docking seal to form an air extraction process, so that the inside of the transverse docking seal that is displaced to the surface of the workpiece to be processed is in a semi-vacuum adsorption state, thereby better sealing and wrapping the cutting part.

[0017] Furthermore, the auxiliary expansion structure is provided with a transverse docking seal, the outer side of which is docked with a second traction rope, which passes through the inner side of the docking support, and the upper end of the second traction rope is docked with the upper end of the docking movable part.

[0018] Furthermore, the transverse docking seal cooperates with the docking corrugated support flexible member to form a movable structure along the lower end of the docking support member through the traction force of the second traction rope, and the transverse docking seal cooperates with the second spring to form an elastic reset structure.

[0019] Furthermore, the docking corrugated support flexible member is in a retractable state, and the docking corrugated support flexible member is connected to the gas supplied inside the guide groove through the gas supply channel, pulling the transverse docking seal and the longitudinal docking seal to cooperate with the docking corrugated support flexible member and the flexible docking layer, forming an outward expansion along the lower end of the docking support member, thereby adaptively expanding the wrapping range of the workpiece surface to be cut.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The cutting device for preparing cathode carbon blocks is provided with a self-sealing structure. When the cutting assembly rotates, the two groups of friction butt joints on the outside thereof will fit together and move, and the high temperature generated by the butt joint heat conductive member made of copper is transmitted to the copper heat conductive sheet, so that the heated air bag fitted on the inside expands and pushes the butt joint movable member and the preset piston member to move downward synchronously, so that the guide groove supplies negative pressure to the inside of the butt joint corrugated support flexible member through the air transmission channel, and drives the transverse butt joint seal member to move downward to adaptively contact with the surface of the workpiece to be cut through the expanded butt joint corrugated support flexible member, thereby effectively performing the fitting-type cutting part overall sealing and wrapping treatment;

[0022] Furthermore, during the cutting process, the cutting component can self-close the dust on the cutting part of the package through the suction pipe connected to the suction device, and efficiently handle the violent carbon fragments generated by high-speed rotation, so that they will not splash onto various working platforms and users, and perform negative pressure sealed dust removal to ensure the overall working environment;

[0023] Furthermore, in the process of the overall preset piston being forced to move downward to create negative pressure inside the guide groove, it will push the docking corrugated support flexible member to expand and drive the transverse docking seal to move downward, and the first traction rope inside the transverse docking seal is forced to drive the sealing piston member to move upward along the inside of the transverse docking seal in the opposite direction to form an air extraction process, so that the inside of the transverse docking seal that is displaced to the surface of the workpiece to be processed is in a semi-vacuum adsorption state, so as to better seal and wrap the cutting part, effectively prevent the overflow of impurities and powder, and improve the practicality of the device;

[0024] Furthermore, an auxiliary expansion structure is provided, and the overall transverse docking seal and longitudinal docking seal are pushed downward by the docking corrugated support flexible member, and the docking movable member that is synchronously pressed and moved downward will then drive the transverse docking seal and longitudinal docking seal whose ends are relatively stationary to be subjected to force through the second traction rope, and then through the traction force of the second traction rope, the transverse docking seal and longitudinal docking seal are pulled to cooperate with the docking corrugated support flexible member and the flexible docking layer, forming an outward expansion along the lower end of the docking support, thereby adaptively expanding the wrapping range of the workpiece surface to be cut, effectively performing the adaptive expansion fitting type cutting part overall sealing and wrapping treatment, and better performing the protective treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the docking support member of the present invention;

[0027] Figure 3 It is a schematic diagram of a half-section three-dimensional structure of a docking support member of the present invention;

[0028] Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged structure;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the heat-conducting member connected to the present invention;

[0030] Figure 6 It is a schematic diagram of the second friction docking three-dimensional structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the transverse docking seal of the present invention;

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the heat conduction sheet of the present invention;

[0033] Fig. 9 This is a schematic diagram of the three-dimensional structure of the preset piston member of the present invention;

[0034] Fig.10 It is a schematic diagram of the three-dimensional structure of the flexible docking layer of the present invention.

[0035] In the figure: 1. driving support seat; 2. docking support member; 3. cutting assembly; 4. suction pipe; 5. first friction docking member; 6. second friction docking member; 7. docking heat conductive member; 8. heat transfer plate; 9. heated airbag; 10. docking movable member; 11. preset piston member; 12. guide groove; 13. docking corrugated support flexible member; 14. transverse docking seal; 15. flexible docking layer; 16. longitudinal docking seal; 17. gas transmission channel; 18. fitting sealing piston member; 19. first spring; 20. second spring; 21. first traction rope; 22. second traction rope. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figure 1-10 , the present invention provides the following technical solution: a cutting device for preparing cathode carbon blocks, comprising a driving support seat 1, a docking support 2, a cutting assembly 3 and a suction pipe 4;

[0038] The upper end of the driving support seat 1 is equipped with a docking support member 2 docked by a hydraulic structure, and the docking support member 2 can be displaced laterally along the upper end of the driving support seat 1 through the hydraulic structure; a cutting assembly 3 is installed inside the docking support member 2, and a suction pipe 4 is installed through the upper end of the docking support member 2, and the end of the suction pipe 4 is docked with the negative pressure structure, a first friction docking member 5 is fixed to the inner wall of the docking support member 2, and a second friction docking member 6 is fixedly connected to the outer side of the cutting assembly 3, and an active adaptive self-sealing structure is arranged inside the docking support member 2, which performs a sealed impurity adsorption process on the surface of the contacting carbon block through adaptive fitting contact;

[0039] The self-sealing structure is provided with a heat conduction sheet 8, and a docking heat conductive member 7 is fixed to the outer side of the heat conduction sheet 8, and the heat conduction sheet 8 is in contact with the outer sides of the first friction docking member 5 and the second friction docking member 6. A heated air bag 9 is bonded to the inner side of the docking support member 2, and a docking movable member 10 is docked at the lower end of the heated air bag 9, and the docking movable member 10 is nested and docked along the inside of the docking support member 2. A guide through groove 12 is provided at the inner lower end of the docking support member 2, and a preset piston member 11 is nested and installed on the inner side of the guide through groove 12, and the preset piston member 11 and the lower end of the docking movable member 10 are nested and docked with each other.

[0040] The lower end of the docking support member 2 is bonded with a docking corrugated support flexible member 13, and the docking support member 2 is docked with a transverse docking seal 14 through the lower end of the docking corrugated support flexible member 13, and the outer side of the transverse docking seal 14 is docked with a flexible docking layer 15, and the outer side of the flexible docking layer 15 is docked with a longitudinal docking seal 16, and at the same time, the upper end of the longitudinal docking seal 16 is docked with the lower end of the docking support member 2 through the docking corrugated support flexible member 13. The inner side of the docking support member 2 is penetrated and docked with a gas transmission channel 17, and the lower end of the gas transmission channel 17 is connected to the inner side of the docking corrugated support flexible member 13, and a second spring 20 is fixed between the transverse docking seal 14 and the lower end of the docking support member 2;

[0041] During the rotation and cutting process of the cutting assembly 3 in the overall equipment, the first friction docking member 5 on the outer side thereof moves the second friction docking member 6 which is attached to the inner wall of the docking support member 2, and generates high temperature and transmits it to the copper docking heat conducting member 7 to the copper heat conducting sheet 8, so that the heated air bag 9 attached to the inner side expands and pushes the docking movable member 10 and the preset piston member 11 to move downward synchronously, so that the guide groove 12 on the inner wall of the docking support member 2 supplies negative pressure to the inside of the docking corrugated support flexible member 13 through the air supply channel 17, and drives the transverse docking seal 14 and the longitudinal docking seal 16 to move downward to adaptively contact with the surface of the workpiece to be cut through the expanded docking corrugated support flexible member 13, so that during the cutting process, the cutting assembly 3 performs a self-sealing dust suction treatment on the cutting part of the package through the suction pipe 4 connected to the suction device, and efficiently treats the violent carbon fragments generated under high-speed rotation, which will not splash onto each working platform and the user, and performs a negative pressure sealed dust removal treatment to ensure the overall working environment;

[0042] A first spring 19 is fixed to the inner side of the transverse docking seal 14, and the lower end of the first spring 19 is docked with a sealing piston 18, and the upper end of the sealing piston 18 is docked with a first traction rope 21, and the upper end of the first traction rope 21 is docked with the lower end of the docking support 2. When the cutting assembly 3 rotates, the first friction docking member 5 on the outside thereof is in contact with the second friction docking member 6 and moves, generating a high temperature that matches the copper docking heat conducting member 7 and transmits it to the copper heat conducting sheet 8, so that the heated airbag 9 on the inside thereof expands and pushes the docking movable member 10 and the preset piston 11 to move downward synchronously. The downward movement of the preset piston 11 creates a negative pressure inside the guide groove 12, so that it pushes the docking corrugated support flexible member 13 to expand and drive the transverse docking seal 14 to move downward, and the first traction rope 21 inside the transverse docking seal 14 is forced to drive the sealing piston 18 to move upward along the inside of the transverse docking seal 14 to form an air extraction process. In the process of the overall preset piston 18 being forced to move downward to create negative pressure inside the guide groove 12, it will push the docking corrugated support flexible member 13 to expand and drive the transverse docking seal 14 to move downward, and the first traction rope 21 inside the transverse docking seal 14 is forced to drive the sealing piston 11 to move upward along the inside of the transverse docking seal 14 to form an air extraction process, so that the inside of the transverse docking seal 14 that has moved to the surface of the workpiece to be processed is in a semi-vacuum adsorption state, so as to better seal and wrap the cutting part, and effectively prevent the overflow of impurities and powder; Embodiment 2:

[0043] On the basis of the first embodiment, in order to solve the problem that negative pressure sealed dust removal cannot be achieved, resulting in a poor overall working environment and a fixed adsorption range, an auxiliary expansion structure is also disclosed, and its specific structure is as follows:

[0044] The lower end of the docking support member 2 is also provided with an auxiliary expansion structure, through which the adsorption range of the entire docking support member 2 is adaptively expanded.

[0045] The auxiliary expansion structure is provided with a transverse docking seal 14, and the outer side of the transverse docking seal 14 is docked with a second traction rope 22, and the second traction rope 22 runs along the inner side of the docking support 2, and the upper end of the second traction rope 22 is docked with the upper end of the docking movable member 10. The transverse docking seal 14 forms a movable structure along the lower end of the docking support 2 in cooperation with the docking corrugated support flexible member 13 through the traction force of the second traction rope 22, and the transverse docking seal 14 cooperates with the second spring 20 to form an elastic reset structure. The docking corrugated support flexible member 13 is in a retractable state, and the docking corrugated support flexible member 13 is connected to the gas supplied inside the guide groove 12 through the gas supply channel 17;

[0046] When the overall transverse docking seal 14 and longitudinal docking seal 16 are pushed downward by the docking corrugated support flexible member 13, the docking movable member 10 that is simultaneously pressed and moved downward will drive the transverse docking seal 14 and longitudinal docking seal 16 whose ends are relatively stationary to be subjected to force through multiple sets of second traction ropes 22, and then through the traction force of the second traction ropes 22, the transverse docking seal 14 and longitudinal docking seal 16 are pulled to cooperate with the flexible support of the docking corrugated support flexible member 13 and the flexible docking layer 15 to form an outward expansion along the lower end of the docking support member 2, thereby adaptively expanding the wrapping range of the workpiece surface to be cut, and effectively performing the adaptive expansion fitting type cutting part overall sealing wrapping processing.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting device for preparing a cathode carbon block, comprising a driving support seat (1), wherein a docking support member (2) docked by a hydraulic structure is installed at the upper end of the driving support seat (1), and the docking support member (2) can be displaced laterally along the upper end of the driving support seat (1) by the hydraulic structure; Features: A cutting assembly (3) is installed inside the docking support (2), and a suction pipe (4) is installed through the upper end of the docking support (2), and the end of the suction pipe (4) is docked with the negative pressure structure. A first friction docking member (5) is fixed to the inner wall of the docking support (2), and a second friction docking member (6) is fixedly connected to the outer side of the cutting assembly (3). An active adaptive self-sealing structure is arranged inside the docking support (2), and the surface of the carbon block in contact is adaptively fitted to perform a sealed impurity adsorption process; The lower end of the docking support member (2) is also provided with an auxiliary expansion structure, and the adsorption range of the entire docking support member (2) is adaptively expanded through the auxiliary expansion structure; The self-sealing structure is provided with a heat conduction sheet (8), and a docking heat conduction member (7) is fixed on the outer side of the heat conduction sheet (8), and the heat conduction sheet (8) contacts the outer sides of the first friction docking member (5) and the second friction docking member (6); a heat receiving air bag (9) is bonded to the inner side of the docking support member (2), and a docking movable member (10) is docked at the lower end of the heat receiving air bag (9), and the docking movable member (10) is nested and docked along the inside of the docking support member (2); a guide groove (12) is provided at the inner lower end of the docking support member (2), and a preset piston member (11) is nested and installed inside the guide groove (12), and the preset piston member (11) and the lower end of the docking movable member (10) are nested and docked with each other; The lower end of the docking support member (2) is bonded to a docking corrugated support flexible member (13), and the docking support member (2) is docked with a transverse docking seal member (14) through the lower end of the docking corrugated support flexible member (13), the outer side of the transverse docking seal member (14) is docked with a flexible docking layer (15), and the outer side of the flexible docking layer (15) is docked with a longitudinal docking seal member (16), and the upper end of the longitudinal docking seal member (16) is docked with the lower end of the docking support member (2) through the docking corrugated support flexible member (13); An air delivery channel (17) is connected to the inner side of the docking support member (2), and the lower end of the air delivery channel (17) is connected to the inner side of the docking corrugated support flexible member (13). A second spring (20) is fixed between the transverse docking seal member (14) and the lower end of the docking support member (2); A first spring (19) is fixed on the inner side of the transverse docking seal (14), and the lower end of the first spring (19) is docked with a fitting seal piston (18), the upper end of the fitting seal piston (18) is docked with a first traction rope (21), and the upper end of the first traction rope (21) is docked with the lower end of the docking support (2); The auxiliary expansion structure is provided with a transverse docking seal (14), the outer side of the transverse docking seal (14) is docked with a second traction rope (22), the second traction rope (22) passes through the inner side of the docking support (2), and the upper end of the second traction rope (22) is docked with the upper end of the docking movable member (10); The transverse docking seal (14) cooperates with the docking corrugated support flexible member (13) to form a movable structure along the lower end of the docking support member (2) through the traction force of the second traction rope (22), and the transverse docking seal (14) cooperates with the second spring (20) to form an elastic reset structure; The butted corrugated support flexible member (13) is in a retractable state, and the butted corrugated support flexible member (13) is connected to the gas supplied inside the guide groove (12) through the gas delivery channel (17).

2. A cathode carbon block preparation cutting device according to claim 1, characterized in that: When the cutting assembly (3) is rotating, the first friction docking member (5) on the outside thereof is in contact with the second friction docking member (6) to move, generating high temperature and transmitting the heat from the docking heat conducting member (7) made of copper to the copper heat conducting sheet (8), so that the heated air bag (9) on the inside thereof expands and pushes the docking movable member (10) and the preset piston member (11) to move downward synchronously.

3. A cathode carbon block preparation cutting device according to claim 2, characterized in that: The downward movement of the preset piston member (11) creates negative pressure inside the guide groove (12), causing it to push the docking corrugated support flexible member (13) to expand and drive the transverse docking seal (14) to move downward. The first traction rope (21) inside the transverse docking seal (14) is forced to drive the fitting sealing piston member (18) to move upward along the inside of the transverse docking seal (14) to form an air extraction process.

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