Underground cable guiding device for heavy hammer structure, press machine and guiding method

Abstract

The invention discloses an underground cable guiding device for a heavy hammer structure, a press machine and a guiding method, and belongs to the technical field of press machines. The guiding device comprises a fixed roller support, the fixed roller support is fixedly arranged below a top plate on a base of the press machine, and a plurality of fixed rollers are rotationally arranged in the fixed roller support; a movable roller support is arranged in the top of the fixed roller support in a sliding mode, a movable roller is installed on the movable roller support, and the movable roller support is fixedly installed at the bottom of a trench covering mechanism of the press machine. The cable is guided and moved underground in the whole process, the cable is prevented from being exposed out of the ground, friction resistance of the cable during moving can be reduced through cooperation of the fixed roller and the movable roller, loss of the cable caused by friction is reduced, meanwhile, the movable roller support is in linkage with the trench covering mechanism and can synchronously move along with the movable workbench, and the cable conveying and guiding stability is guaranteed while the cable conveying and guiding efficiency is improved. And the trench covering mechanism can be used for covering the trench and the cable below the trench, so that the problem of exposure of the cable is further avoided.

Description

Technical Field

[0001] This invention relates to the field of press technology, and in particular to an underground cable guiding device, press, and guiding method for a counterweight structure. Background Technology

[0002] A press is a general-purpose mechanical device that uses pressure to plastically deform, separate, or shape metal or non-metal materials. It is widely used in stamping, forging, bending, shearing, and other processing scenarios. The worktable of a large press can usually be moved out of the machine body.

[0003] The moving worktable of the press needs to be connected to a cable. There are two ways to install the cable. One is a cable chain structure, in which the cable is placed inside the cable chain housing. The cable chain moves with the moving worktable. When the moving worktable moves out, the cable chain reciprocates in the plane. However, the cable chain is more expensive. Therefore, the second protection method is usually adopted, which is a counterweight structure. The counterweight structure contains a winding drum. When the moving worktable moves out of the machine body, the cable is released. When the moving worktable moves into the machine body, the cable is wound into the drum.

[0004] Although the weighted structure has low operating costs, the guide device of the existing weighted structure is usually installed on the workbench. In order to ensure the normal operation of the moving workbench, the cable is on the ground and exposed, which makes the cable easy to be damaged and poses safety hazards. Summary of the Invention

[0005] To address the technical problem in the background art that the existing guide devices for the counterweight structure are usually installed on a workbench, and in order to ensure the normal operation of the moving workbench, the cable is exposed on the ground, which makes the cable easy to be damaged and poses a safety hazard, the present invention provides an underground cable guide device, a press, and a guide method for the counterweight structure.

[0006] The technical solution of this invention is as follows: This invention provides an underground cable guiding device for a counterweight structure, including a fixed roller bracket, which is fixedly installed below the top plate of the press base. Several fixed rollers are rotatably mounted inside the fixed roller bracket. A movable roller bracket is slidably installed inside the top of the fixed roller bracket, and a movable roller is mounted on the movable roller bracket. The movable roller bracket is fixedly installed at the bottom of the press's trench covering mechanism. By placing the fixed roller bracket below the top plate of the base (i.e., in the underground space), the cable can be guided and moved entirely underground, preventing the cable from being exposed on the ground. This solves the problems of easy cable damage and safety hazards in existing counterweight structures. Furthermore, the cooperation between the fixed rollers and the movable rollers reduces frictional resistance during cable movement, lowering cable loss caused by friction. Simultaneously, the movable roller bracket is linked with the trench covering mechanism, moving synchronously with the moving worktable. This ensures the stability of cable transport and guidance while also allowing the trench covering mechanism to cover the trench and the cable below, further preventing cable exposure.

[0007] Preferably, two opposing limiting plates are fixedly installed at the cable inlet at the bottom of the fixed roller support. The limiting plates are arc-shaped. The arc-shaped limiting plates can buffer and guide the cable entering the fixed roller support, preventing the cable from being damaged by direct impact with the support at the inlet. In addition, the two opposing limiting plates can restrict the initial entry direction of the cable, preventing the cable from deviating during entry, ensuring that the cable can accurately enter the guide path inside the fixed roller support, and improving the accuracy of cable delivery.

[0008] Preferably, the protruding portions of the two limiting plates are close to each other, with a gap between them allowing the cable to pass through. This results in the two limiting plates having a structure where the sides are spread out and the middle is close together. The specific gap formed by the close proximity of the protruding portions can accurately limit the cable, preventing it from swaying left and right or deviating from the preset trajectory during transportation. Especially when the moving worktable moves the cable, it can prevent the cable from colliding and rubbing against the inner wall of the fixed roller support due to swaying. At the same time, it can also prevent the front and rear sides of the two limiting plates from scratching the cable, effectively protecting the cable sheath.

[0009] Preferably, the fixed roller support includes two oppositely arranged side plates. One side of the two side plates is fixedly connected by a sealing plate, and the top of the two side plates is fixedly connected by a top plate. The fixed roller is rotatably positioned between the two side plates. The two side plates, the sealing plate, and the top plate together form a closed frame structure, which can effectively protect the internal fixed roller and cable, preventing dust, mud, and other debris in the underground space from adhering to the surface of the cable and the fixed roller, affecting cable conveying and the rotation of the fixed roller. The fixed roller is positioned between the two side plates, which can ensure the stability of the fixed roller installation and prevent the fixed roller from shifting or falling off during cable dragging, thereby ensuring the continuity and reliability of cable guidance.

[0010] Preferably, the top plate has several bolt holes and a clearance groove is provided in the middle of the top plate. The clearance groove in the middle position can provide space for the sliding of the moving roller bracket, ensuring that the moving roller bracket is not obstructed by the top plate when it moves with the moving worktable. At the same time, the clearance groove can guide the movement of the cable on the top of the fixed roller bracket, preventing the cable from leaving the range of the fixed roller bracket when moving horizontally.

[0011] Preferably, a guide groove is provided on the upper surface of the top plate. The guide groove extends along the length of the top plate and is coaxial with the clearance groove. The guide groove and the clearance groove are coaxial and extend along the length of the top plate. The guide groove plays a guiding role to ensure that the top plate chain can accurately cover the guide groove, thereby covering the clearance groove to protect the cables in the pit and prevent cable leakage.

[0012] Preferably, the fixed roller support is divided into a first transition section, a vertical section, a second transition section, and a horizontal section. The first transition section is located directly below the second transition section. The first and second transition sections are fixedly connected via the vertical section, and the horizontal section is fixedly connected to one side of the second transition section. This design accommodates the cable transport path from the underground counterweight structure to the above-ground moving workbench. The first transition section facilitates the cable's transition from horizontal to vertical, the vertical section completes the vertical transport of the cable, the second transition section facilitates the cable's transition from vertical to horizontal, and the horizontal section accommodates the horizontal extension requirements of the cable when the moving workbench moves. Each section has a clear function and smooth connections, preventing excessive bending or stretching of the cable due to abrupt changes in direction, reducing the risk of damage caused by sudden shape changes, and ensuring smooth cable transport.

[0013] Preferably, both the first and second transition sections are equipped with a number of fixed rollers arranged in an arc shape. These fixed rollers are divided into inner and outer sides, with more rollers on the outer side than on the inner side. A number of fixed rollers are also spaced along the length of the outer side of the horizontal section. The arc-shaped arrangement of the fixed rollers in the first and second transition sections conforms to the arc-shaped path of the cable during turning. The greater number of rollers on the outer side further optimizes the turning guidance effect, reduces localized stress on the cable at the turning point, and prevents damage to the cable due to turning compression. The spaced-out fixed rollers on the outer side of the horizontal section provide support and guidance for the horizontally moving cable, preventing it from sagging or deviating during horizontal extension, ensuring stable movement of the cable along the horizontal section, and improving overall guiding accuracy.

[0014] A press includes an underground cable guide device for the aforementioned counterweight structure. This device enables the press's moving worktable to utilize a low-cost counterweight structure while solving the problem of exposed cables on the ground. This reduces the press's operating costs and improves its safety and reliability. Furthermore, the guide device is adaptable to the press's operating environment, stably coordinating with the dynamic operation of the moving worktable. This reduces the number of press downtimes due to cable damage, thereby increasing the press's efficiency and lifespan.

[0015] A guiding method, comprising: The cable passes horizontally between the two limiting plates and extends into the fixed roller bracket. Guided by the limiting plates, the cable enters the fixed roller bracket in the correct initial direction, avoiding deviation or collision at the cable entrance. This lays a precise foundation for the subsequent turning and conveying of the cable in the fixed roller bracket, reducing subsequent failures caused by initial direction deviation. In the first transition section, the cable transitions from a horizontal to a vertical state. The vertical cable is guided through the vertical section to the second transition section. The cable passes around the moving roller and exits upward through the threading hole. The exiting cable enters the moving worktable. The cable turning and conveying are realized in stages. The coordination of the first transition section with the vertical and second transition sections ensures a smooth transition of the cable shape and avoids excessive bending. The moving roller reduces the frictional resistance when the cable exits, and the threading hole further regulates the path of the cable into the moving worktable, ensuring that the cable can safely and smoothly power the moving worktable. At the same time, the entire underground conveying process avoids the cable being exposed and damaged. During the movement of the mobile workbench, the moving roller support moves synchronously, thereby dragging the cable in the underground space. The cable extends from the second transition section into the horizontal section, and moves synchronously with the mobile workbench along the clearance groove on the top of the fixed roller support. The synchronous movement of the moving roller support and the mobile workbench ensures that the cable is always at the appropriate tension, preventing the cable from slack or overstretching due to the movement of the mobile workbench. The cable extends from the second transition section into the horizontal section and moves along the clearance groove, ensuring the stability of the cable's horizontal movement trajectory, reducing friction and collision, further protecting the cable, and at the same time achieving dynamic adaptation between the cable and the mobile workbench, ensuring that the mobile workbench can stably supply power in any position.

[0016] As can be seen from the above technical solutions, the advantages of the present invention are: 1. By placing the fixed roller support below the top plate of the base (i.e., in the underground space), the cable can be guided and moved entirely underground, avoiding exposure to the ground. This solves the problems of easy cable damage and safety hazards in existing counterweight structures. Furthermore, the cooperation between the fixed roller and the moving roller reduces the frictional resistance during cable movement, thus reducing cable loss caused by friction. At the same time, the moving roller support is linked with the trench covering mechanism, moving synchronously with the moving worktable. This ensures the stability of cable conveying and guidance, while also covering the trench and the cable below it using the trench covering mechanism, further preventing cable exposure.

[0017] 2. The two limiting plates are designed with the sides extended and the middle closer together. The specific gap formed by the protruding parts can accurately limit the cable and prevent the cable from swaying left and right or deviating from the preset trajectory during the conveying process. Especially when the moving worktable moves the cable, it can prevent the cable from colliding and rubbing against the inner wall of the fixed roller support due to swaying. At the same time, it can also prevent the sides of the two limiting plates from scratching the cable, effectively protecting the cable sheath. Attached Figure Description

[0018] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the underground cable guiding device for the counterweight structure according to one or more embodiments of the present invention. Figure 2 This is a front view schematic diagram of the underground cable guiding device for the counterweight structure according to one or more embodiments of the present invention (with one side plate removed from the fixed roller support). Figure 3 This is a schematic diagram of the structure of the moving roller support according to one or more embodiments of the present invention; Figure 4 A schematic diagram of the structure of the fixed roller support according to one or more embodiments of the present invention; The components represented by the various reference numerals in the diagram are: 1. Limiting plate; 2. Fixed roller support; 201. First transition section; 202. Vertical section; 203. Second transition section; 204. Horizontal section; 3. Fixed roller; 4. Moving roller support; 5. Moving roller; 6. Top plate on the base; 7. Trench covering mechanism; 8. Side plate; 9. Top plate; 10. Ear plate; 11. Sealing plate; 12. Bolt hole; 13. Clearance groove; 14. Guide groove; 15. Connecting plate; 16. Mounting plate; 17. Threading hole. Detailed Implementation

[0020] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0021] Example 1 In a typical embodiment of the present invention, such as Figures 1-4 As shown, a ground cable guiding device for a counterweight structure is proposed, comprising: a limiting plate 1, a fixed roller support 2, a fixed roller 3, a moving roller support 4, and a moving roller 5. Several fixed rollers 3 are provided, rotatably arranged within the fixed roller support 2 to guide, reverse, and limit the cable within the fixed roller support 2, reducing cable sway. The fixed roller support 2 is fixedly installed below the top plate 6 on the base of the press, thus shielding the fixed roller support 2 within the press pit via the top plate 6. Two limiting plates 1 are fixedly installed at the cable inlet at the bottom of the fixed roller support 2, with the two limiting plates 1 arranged opposite each other to clamp the cable, thereby limiting the cable's left and right sway. The moving roller support 4 is fixedly installed at the bottom of the press's trench covering mechanism 7, and slidably arranged within the top of the fixed roller support 2, allowing it to move with the trench covering mechanism 7. The moving roller 5 is mounted on the moving roller support 4 to guide the cable, ensuring the cable safely and smoothly enters the moving worktable of the press.

[0022] It should be noted that since the length of the end of the cable connected to the moving worktable does not change, the moving roller 5 can be directly fixed on the moving roller bracket 4, serving only as support and guide. The moving roller 5 can also be rotatably mounted on the moving roller bracket 4. The specific choice can be made according to actual needs, and no further restrictions are imposed here.

[0023] When the mobile worktable moves in and out, the moving roller support 4 and the moving roller 5 on it move with the worktable. The cable below the moving roller 5 also extends or shortens with the mobile worktable. The fixed roller support 2 and the fixed roller 3 inside it are fixed in position to guide the cable section, so that the cable can extend and retract freely and ensure the stability of the cable operation. Through the use of the underground cable guiding device with the counterweight structure, it is ensured that the cable works underground when the mobile worktable is running, which effectively improves the service life of the cable.

[0024] like Figure 4As shown, the limiting plate 1 is an arc-shaped plate structure. The two limiting plates 1 are installed at the cable inlet at the bottom of the fixed roller bracket 2 by bolts. The two limiting plates 1 are arranged opposite each other, with the protruding parts of the two limiting plates 1 close to each other, and there is a gap between the protruding parts of the two limiting plates 1 that allows the cable to pass through, so as to limit the cable to the left and right and reduce the left and right swing of the cable.

[0025] The way the protruding parts of the two limiting plates 1 are close to each other makes the distance between the middle parts of the two limiting plates 1 less than the distance between the two sides of the two limiting plates 1. This makes the two limiting plates 1 present a structure with the sides spread out and the middle close together. While using the middle to limit the left and right of the cable, it can also prevent the front and rear sides of the two limiting plates 1 from scratching the cable, effectively protecting the cable sheath.

[0026] The fixed roller support 2 includes a side plate 8, a top plate 9, and a sealing plate 11. There are two side plates 8, which are arranged opposite each other. One side of the two side plates 8 is fixedly connected together by the sealing plate 11. The sealing plate 11 is welded to the side plate 8. The top plate 9 is fixedly installed on the top of the two side plates 8 by welding. The top plate 9 is used to fixally connect to the top plate 6 on the base of the press. The bottom of the side plate 8 away from the sealing plate 11 is fixedly connected to the limiting plate 1. The limiting plate 1 corresponds to the side plate 8 one by one. The fixed roller 3 is rotatably arranged between the two side plates 8.

[0027] like Figure 2 As shown, the fixed roller support 2 is divided into a first transition section 201, a vertical section 202, a second transition section 203 and a horizontal section 204. The first transition section 201 is located directly below the second transition section 203. The first transition section 201 and the second transition section 203 are fixedly connected through the vertical section 202, and the horizontal section 204 is fixedly connected to one side of the second transition section 203.

[0028] Both the first transition section 201 and the second transition section 203 are equipped with a number of fixed rollers 3. Specifically, the first transition section 201 has fixed rollers 3 on both the inner and outer sides. The number of fixed rollers 3 on the outer side of the first transition section 201 is greater than the number of fixed rollers 3 on the inner side, that is, the number of fixed rollers 3 near the sealing plate 11 is less than the number of fixed rollers 3 far from the sealing plate 11. The fixed rollers 3 on both the inner and outer sides of the first transition section 201 are arranged in an arc shape. The fixed rollers 3 on both the inner and outer sides are used for guiding, circumferentially guiding, and limiting the cable, so that the cable smoothly transitions from a horizontal state to a vertical state and enters the vertical section 202. Fixed rollers 3 are not set in the vertical section 202 to reduce the number of fixed rollers 3 used, reduce the cost of use, and reduce the failure rate. The transition section 203 is also equipped with inner and outer fixed rollers 3. The number of fixed rollers 3 on the outer side of the second transition section 203 is greater than the number of fixed rollers 3 on the inner side. That is, the number of fixed rollers 3 near the sealing plate 11 is less than the number of fixed rollers 3 far from the sealing plate 11. The inner and outer fixed rollers 3 in the second transition section 203 are arranged in an arc shape. The inner and outer fixed rollers 3 are used for guiding, circumferential and limiting the cable, so that the cable smoothly transitions from a vertical state to a horizontal state and enters the horizontal section 204. On the outer side of the horizontal section 204, that is, the opening side away from the top plate 9, a number of fixed rollers 3 are spaced along its length to support and limit the bottom of the cable. They work with the moving rollers 5 on the moving roller bracket 4 to limit and guide the cable.

[0029] like Figure 4 As shown, the top plate 9 has a U-shaped plate structure. A clearance groove 13 is provided in the middle of the top plate 9 to allow the cable to pass through and move back and forth. The top plate 9 is fixedly connected to the two side plates 8 by welding. The two side plates 8 are arranged opposite each other on both sides of the clearance groove 13. Several bolt holes 12 are provided on the top plate 9 for bolt installation. The top plate 9 is then fixedly connected to the top plate 6 on the base by bolts to fix the position of the fixed roller bracket 2.

[0030] A guide groove 14 is provided on the upper surface of the top plate 9. The guide groove 14 extends along the length of the top plate 9 and is coaxially arranged with the clearance groove 13. The guide groove 14 does not penetrate the top plate 9. The trench covering mechanism 7 is movably arranged in the guide groove 14 to play a guiding role, ensuring that the top plate chain can accurately cover the guide groove 14, thereby covering the clearance groove 13 to protect the cables in the pit and prevent cable leakage. Ear plates 10 are also welded and fixed on both sides of the top plate 9. Bolt holes 12 are also provided on the ear plates 10 to be fixedly connected to the top plate 6 on the base by bolts to improve the installation stability of the fixed roller support 2.

[0031] like Figure 3As shown, the moving roller bracket 4 includes a connecting plate 15 and a mounting plate 16. The connecting plate 15 is horizontally arranged, and the mounting plate 16 is vertically arranged. There are two mounting plates 16, and the two mounting plates 16 are fixedly arranged at the bottom of the connecting plate 15 by welding. The moving roller 5 is laterally rotatably arranged between the two mounting plates 16. A wire hole 17 is opened in the middle of the connecting plate 15. The wire hole 17 is located above the moving roller 5 to allow the cable to pass through the connecting plate 15. Several bolt holes 12 are also opened on the periphery of the connecting plate 15 to be fixedly connected to the trench covering mechanism 7 by bolts.

[0032] Example 2 In another typical embodiment of the present invention, a press is proposed, comprising: an underground cable guiding device for a counterweight structure, a counterweight structure, and a movable worktable. The fixed roller support 2 and its internal fixed roller 3 are fixedly installed below the top plate 6 on the base for guiding the cable. The fixed roller support 2 and its internal fixed roller 3 are located entirely within an underground space (i.e., within the press's pit) and are connected to the pulley frame of the counterweight structure located within the pit to facilitate cable transport and guidance. The movable worktable is movably positioned above the top plate 6 on the base. The movable roller support 4 is bolted to the top plate chain arch bridge support of the trench covering mechanism 7 of the movable worktable. The movable roller support 4 is also located within an underground space. This not only allows the cable to smoothly enter the movable worktable from underground, ensuring that the movable cable operates underground when the movable worktable moves, but also allows the top plate chain to cover the trench, sealing the underground cable and preventing cable exposure and damage.

[0033] It should be noted that the trench covering mechanism 7 mentioned in this embodiment is an existing structure, which is the same as that in publication number CN104495266B. The specific details will not be elaborated here.

[0034] Example 3 In another typical embodiment of the present invention, a guiding method is proposed, comprising: The underground cable extends through the pulley frame of the counterweight structure, passes horizontally between the two limiting plates 1 and extends into the fixed roller support 2; The cable first enters the first transition section 201, where it smoothly transitions from a horizontal to a vertical state. The vertical cable is guided through the vertical section 202 to the second transition section 203. The cable then passes around the moving roller 5 on the moving roller bracket 4 and extends upward through the cable hole 17. The cable that passes through the cable hole 17 enters the top plate chain arch bridge bracket of the trench covering mechanism 7 on the mobile workbench to supply power to the mobile workbench.

[0035] During the movement of the mobile workbench, the moving roller support 4 moves synchronously, thereby dragging the cable in the underground space to move. The cable smoothly transitions from a vertical state to a horizontal state, so that the cable extends from the second transition section 203 into the horizontal section 204. The cable moves synchronously with the mobile workbench along the clearance groove 13 at the top of the fixed roller support 2. When the moving worktable is reset, the cable moves along the clearance groove 13 at the top of the fixed roller bracket 2, causing the cable to retract from the horizontal section 204 into the second transition section 203. The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ground cable guiding device for a counterweight structure, comprising: The fixed roller support (2) is characterized in that the fixed roller support (2) is fixedly installed below the top plate (6) on the base of the press, and a plurality of fixed rollers (3) are rotatably installed inside the fixed roller support (2); a movable roller support (4) is slidably installed inside the top of the fixed roller support (2), and a movable roller (5) is installed on the movable roller support (4), and the movable roller support (4) is fixedly installed at the bottom of the trench covering mechanism (7) of the press.

2. The underground cable guiding device for the counterweight structure according to claim 1, characterized in that, Two opposing limiting plates (1) are fixed at the cable inlet at the bottom of the fixed roller bracket (2). The limiting plates (1) are arc-shaped plates.

3. The underground cable guiding device for the counterweight structure according to claim 2, characterized in that, The protrusions of the two limiting plates (1) are close to each other, and there is a gap between the protrusions of the two limiting plates (1) that allows the cable to pass through.

4. The underground cable guiding device for the counterweight structure according to claim 1, characterized in that, The fixed roller support (2) includes two oppositely arranged side plates (8), one side of the two side plates (8) is fixedly connected by a sealing plate (11), and the top of the two side plates (8) is fixedly connected by a top plate (9). The fixed roller (3) is rotatably arranged between the two side plates (8).

5. The underground cable guiding device for the counterweight structure according to claim 4, characterized in that, The top plate (9) has several bolt holes (12) and a clearance groove (13) is provided in the middle of the top plate (9).

6. The underground cable guiding device for the counterweight structure according to claim 5, characterized in that, A guide groove (14) is provided on the upper surface of the top plate (9). The guide groove (14) extends along the length of the top plate (9). The guide groove (14) and the clearance groove (13) are coaxially arranged.

7. The underground cable guiding device for the counterweight structure according to claim 4, characterized in that, The fixed roller support (2) is divided into a first transition section (201), a vertical section (202), a second transition section (203) and a horizontal section (204). The first transition section (201) is located directly below the second transition section (203). The first transition section (201) and the second transition section (203) are fixedly connected through the vertical section (202), and the horizontal section (204) is fixedly connected to one side of the second transition section (203).

8. The underground cable guiding device for the counterweight structure according to claim 7, characterized in that, The first transition section (201) and the second transition section (203) are both equipped with a number of fixed rollers (3) arranged in an arc shape. The fixed rollers (3) in the first transition section (201) and the second transition section (203) are divided into inner and outer sides, and the number of fixed rollers (3) on the outer side is greater than that on the inner side. The outer side of the horizontal section (204) is equipped with a number of fixed rollers (3) spaced apart along its length.

9. A press, characterized in that, Includes an underground cable guiding device for a counterweight structure as described in any one of claims 1-8.

10. A guiding method, characterized in that, The underground cable guiding device for the counterweight structure as described in any one of claims 1-8 includes: The cable passes horizontally between the two limiting plates (1) and extends into the fixed roller bracket (2); In the first transition section (201), the cable transitions from a horizontal state to a vertical state. The vertical cable is guided through the vertical section (202) to the second transition section (203). The cable passes around the moving roller (5) and passes through the wire hole (17) upwards. The cable then enters the moving worktable. During the movement of the mobile workbench, the moving roller support (4) moves synchronously, thereby dragging the cable in the underground space to move. The cable extends from the second transition section (203) to the horizontal section (204). The cable moves synchronously with the mobile workbench along the clearance groove (13) on the top of the fixed roller support (2).

Images