Fireproof flame-retardant cable cutting device

Abstract

The utility model relates to the technical field of cable production, in particular to a fireproof flame-retardant cable cutting device which comprises a cutting table, and a cutting mechanism is fixedly installed on the top face of the cutting table. A through groove is formed in the middle of the top face of the cutting table, a tool apron is mounted in the through groove, mounting grooves are formed in the positions, close to the two ends, of the top face of the cutting table, and limiting mechanisms are arranged in the mounting grooves. The limiting mechanism comprises a two-way lead screw and a guide rod, two symmetrically-distributed sliding seats are installed on the periphery of the two-way lead screw in a penetrating mode through threads, the sliding seats and the guide rod are connected in a penetrating mode in a sliding mode, and vertical limiting rollers are rotationally installed on the top faces of the sliding seats; according to the utility model, the cable can be forcibly straightened through the arrangement of the two limiting mechanisms, so that the cutting stress is uniformly distributed, the integrity of the internal structure of the cable is effectively protected, and the device is particularly suitable for high-standard production of fireproof flame-retardant cables; and the limiting mechanism can adapt to cables with different diameters through driving of a bidirectional screw rod, so that the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of cable production technology, specifically a fireproof and flame-retardant cable cutting device. Background Technology

[0002] Fire-resistant and flame-retardant copper core high-voltage cables are high-voltage cables that use copper as the conductor and possess fire-resistant and flame-retardant properties. These cables are widely used in applications requiring high safety and fire resistance, such as power systems, industrial equipment, and building power supplies. During production, the cables are cut to specific lengths according to customer needs or standard specifications to ensure installation requirements are met.

[0003] Existing technology includes a cutting device for producing fire-retardant cables, as described in patent application number CN202421349699.8. This device comprises a base plate, support legs, support rods, and a top plate. The support legs are fixedly installed around the bottom of the base plate, the support rods are fixedly installed around the top of the base plate, and the top plate is fixedly installed on top of the four support rods. A cutting device is located on the top of the base plate, comprising a cutting unit and a cleaning unit. The cutting unit is positioned above the base plate, and the cleaning unit is positioned on top of the base plate. This cutting device for producing fire-retardant cables, by setting up the cutting unit, activates a telescopic component to push the support plate downwards. During the descent of the support plate, a pressure plate contacts the cable in advance. As the support plate descends, the pressure plate presses the cable firmly, and then the cutting blade cuts the cable. This method of fixing is convenient and eliminates the need for manual cable clamping by workers.

[0004] However, the above-mentioned patents still have the following shortcomings in use:

[0005] According to its content, when cutting the cable, the cable is placed on the base plate and pressed and fixed by the support plate. However, the cable will bend and deform after being wound up. Therefore, the cable on the base plate is pressed in a bent state. Cutting the cable at this time may cause stress concentration and increase the risk of damage to the internal conductor or insulation layer of the cable. Utility Model Content

[0006] The purpose of this invention is to provide a fire-resistant and flame-retardant cable cutting device to solve the problems mentioned in the background art.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A fire-resistant and flame-retardant cable cutting device includes a cutting table, a plurality of legs fixedly installed on the bottom surface of the cutting table, and a cutting mechanism fixedly installed in the middle of the top surface of the cutting table; a through groove is opened in the middle of the top surface of the cutting table, and a knife holder is fixedly installed between the two ends of the through groove; an installation groove is opened on the top surface of the cutting table near both ends, and a limit mechanism is installed in the installation groove.

[0009] The limiting mechanism includes a bidirectional lead screw and a guide rod. The bidirectional lead screw is rotatably installed between the two ends of the mounting groove, and the guide rod is fixedly installed between the two ends of the mounting groove. Two symmetrically distributed slide blocks are threaded through the periphery of the bidirectional lead screw, and the slide blocks and the guide rod are slidably connected through the screw. A vertical limiting roller is rotatably installed on the top surface of the slide block.

[0010] Furthermore, a handwheel is fixedly installed at one end of the bidirectional lead screw after it rotates through the cutting table;

[0011] The top surface of the slide is flush with the top surface of the cutting table.

[0012] Furthermore, the cutting mechanism includes a lifting mechanism fixedly installed on the top surface of the cutting table. The lifting mechanism includes a top plate located directly above the cutting table. The bottom surface of the top plate is fixedly connected to the top surface of the cutting table at the four corners.

[0013] Below the top plate is a lifting platform that is slidably connected to multiple columns, and a U-shaped seat is fixedly installed in the middle of the top surface of the lifting platform.

[0014] An electric push rod is fixedly installed at the center of the top surface of the top plate, and the telescopic end of the electric push rod slides through the top plate and is fixedly connected to the U-shaped seat.

[0015] The lifting platform is equipped with a cutting assembly.

[0016] Furthermore, the cutting assembly includes a motor fixedly installed on the top surface of the lifting platform and a blade mounting seat fixedly installed on the bottom surface of the lifting platform, wherein a blade is installed in the blade mounting seat;

[0017] The motor is connected to the blade via a pulley structure, and the pulley structure is covered by a protective shell that extends through the lifting platform.

[0018] Furthermore, a protective assembly is fixedly installed on the bottom surface of the lifting platform to surround the blade and the blade mounting seat. The protective assembly includes a rectangular enclosure one fixedly installed on the top surface of the lifting platform, and a rectangular enclosure two is slidably inserted into the bottom end of the rectangular enclosure one.

[0019] The rectangular enclosure one has a protrusion one fixedly installed on the side near the bottom on both sides, and the rectangular enclosure two has a protrusion two fixedly installed on the side near the bottom on both sides. The four protrusion two are located directly below the four protrusion one, and springs are fixedly connected between the protrusion two and the protrusion one at the corresponding positions.

[0020] Both sides of the rectangular enclosure have clearance grooves at the bottom center.

[0021] The beneficial effects of this utility model are:

[0022] This invention, through the setting of two sets of limiting mechanisms, can forcibly straighten the cable, so that the cutting stress is evenly distributed and the internal structural integrity of the cable is effectively protected. It is especially suitable for high-standard production of fire-resistant and flame-retardant cables. Furthermore, the limiting mechanism is driven by a bidirectional screw, which can be adapted to cables of different diameters, improving the practicality of the device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0025] Figure 2 yes Figure 1 Enlarged view of section A;

[0026] Figure 3 yes Figure 1 Enlarged view of section B;

[0027] Figure 4 This is a three-dimensional schematic diagram of the cutting mechanism in this utility model;

[0028] The accompanying figure is labeled as follows:

[0029] 1-Cutting table, 2-Support leg, 3-Column, 4-Lifting platform, 5-Top plate, 6-Electric push rod, 7-Motor, 8-U-shaped seat, 9-Rectangular enclosure one, 10-Mounting groove, 11-Double-actuated screw, 12-Handwheel, 13-Guide rod, 14-Slide seat, 15-Limiting roller, 16-Through groove, 17-Knife holder, 18-Rectangular enclosure two, 19-Protrusion one, 20-Spring, 21-Protrusion two, 22-Protective shell, 23-Blade, 24-Allowing groove, 25-Blade mounting seat. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1:

[0032] Please see Figures 1-4 In this embodiment of the present invention, a fireproof and flame-retardant cable cutting device includes a cutting table 1, a plurality of legs 2 are fixedly installed on the bottom surface of the cutting table 1, and a cutting mechanism is fixedly installed in the middle position of the top surface of the cutting table 1; a through groove 16 is opened in the middle position of the top surface of the cutting table 1, and a knife holder 17 is fixedly installed between the two ends of the through groove 16; an installation groove 10 is opened on the top surface of the cutting table 1 near both ends, and a limit mechanism is installed in the installation groove 10.

[0033] The limiting mechanism includes a bidirectional lead screw 11 and a guide rod 13. The bidirectional lead screw 11 is rotatably installed between the two ends of the mounting groove 10, and the guide rod 13 is fixedly installed between the two ends of the mounting groove 10. Two symmetrically distributed slide blocks 14 are threaded through the periphery of the bidirectional lead screw 11, and the slide blocks 14 and the guide rod 13 are slidably connected through the thread. A vertical limiting roller 15 is rotatably installed on the top surface of the slide block 14.

[0034] Among them, a handwheel 12 is fixedly installed after one end of the bidirectional lead screw 11 rotates through the cutting table 1;

[0035] The top surface of the slide 14 is flush with the top surface of the cutting table 1.

[0036] The cutting mechanism includes a lifting mechanism fixedly installed on the top surface of the cutting table 1. The lifting mechanism includes a top plate 5 set directly above the cutting table 1. The bottom surface of the top plate 5 is fixedly connected to the top surface of the cutting table 1 at the four corners.

[0037] Below the top plate 5, there is a lifting platform 4 that is slidably connected to multiple columns 3. A U-shaped seat 8 is fixedly installed in the middle of the top surface of the lifting platform 4.

[0038] An electric push rod 6 is fixedly installed at the center of the top surface of the top plate 5. The telescopic end of the electric push rod 6 slides through the top plate 5 and is fixedly connected to the U-shaped seat 8.

[0039] The lifting platform 4 is equipped with a cutting assembly.

[0040] The cutting assembly includes a motor 7 fixedly installed on the top surface of the lifting platform 4 and a blade mounting seat 25 fixedly installed on the bottom surface of the lifting platform 4, wherein a blade 23 is installed in the blade mounting seat 25.

[0041] The motor 7 is connected to the blade 23 via a pulley structure, and the pulley structure is covered with a protective shell 22 that penetrates the lifting platform 4.

[0042] When using this utility model:

[0043] The fire-retardant cable to be cut is placed horizontally on the top surface of the cutting table 1, above the through slot 16. Then, the bidirectional lead screw 11 is driven to rotate by rotating the handwheel 12. Due to the symmetrical distribution of the threads of the bidirectional lead screw 11, the two slide blocks 14 move synchronously to the middle or both sides under the guidance of the guide rod 13, thereby driving the limit roller 15 to adjust the spacing.

[0044] After the limiting roller 15 contacts the side wall of the cable, its vertically rotatable design can both clamp the cable and straighten it, while reducing frictional resistance and preventing damage to the cable surface. During this process, the cable is forcibly straightened and fixed at the cutting position, eliminating the risk of stress concentration caused by bending deformation.

[0045] During cutting, motor 7 is started, driving blade 23 to rotate at high speed via a pulley structure. Then, the telescopic end of electric push rod 6 pushes down the U-shaped seat 8, causing the lifting platform 4 to descend smoothly along column 3. Blade 23 moves downwards, passes through slot 16, and engages with blade holder 17 to complete the cable cut. During the cutting process, the lifting speed and cutting depth of the lifting platform 4 can be precisely controlled by electric push rod 6 to ensure a clean cut.

[0046] Therefore, in this utility model, the cable can be forcibly straightened by setting two sets of limiting mechanisms, so that the cutting stress is evenly distributed and the internal structural integrity of the cable is effectively protected. It is especially suitable for high-standard production of fireproof and flame-retardant cables. Furthermore, the limiting mechanism can be adapted to cables of different diameters by driving the bidirectional lead screw 11, thus improving the practicality of the device.

[0047] Example 2:

[0048] Please see Figure 1 , Figure 3 and Figure 4 Based on embodiment 1, a protective assembly is fixedly installed on the bottom surface of the lifting platform 4 to surround the blade 23 and the blade mounting seat 25. The protective assembly includes a rectangular enclosure 1 9 fixedly installed on the top surface of the lifting platform 4, and a rectangular enclosure 2 18 is slidably inserted at the bottom end of the rectangular enclosure 1 9.

[0049] The sides of rectangular enclosure 19 are fixedly installed with protrusions 19 near the bottom. The sides of rectangular enclosure 28 are fixedly installed with protrusions 21 near the bottom. The four protrusions 21 are located directly below the four protrusions 19. Springs 20 are fixedly connected between the corresponding protrusions 21 and protrusions 19.

[0050] Both sides of the rectangular enclosure 218 have clearance grooves 24 at the bottom center.

[0051] As the blade 23 descends, the rectangular barrier 18, under the elastic force of the spring 20, remains firmly against the top surface of the cutting table 1, forming a closed protective space to prevent cutting debris from flying or operators from accidentally touching the blade. When the lifting platform 4 rises and resets, the rectangular barrier 18 disengages from the blade 23 through the clearance groove 24, and the spring 20 automatically retracts, restoring the protective assembly to its initial state; the generated debris falls downwards through the through groove 16 for easy collection.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A fire-resistant and flame-retardant cable cutting device, comprising a cutting table (1), wherein a plurality of legs (2) are fixedly installed on the bottom surface of the cutting table (1), and a cutting mechanism is fixedly installed at the middle position of the top surface of the cutting table (1); characterized in that, A through groove (16) is provided in the middle of the top surface of the cutting table (1), and a knife holder (17) is fixedly installed between the two ends of the through groove (16). An installation groove (10) is provided on the top surface of the cutting table (1) near both ends, and a limit mechanism is installed in the installation groove (10). The limiting mechanism includes a bidirectional lead screw (11) and a guide rod (13). The bidirectional lead screw (11) is rotatably installed between the two ends of the mounting groove (10), and the guide rod (13) is fixedly installed between the two ends of the mounting groove (10). Two symmetrically distributed slide blocks (14) are installed on the periphery of the bidirectional lead screw (11) through a threaded connection, and the slide blocks (14) and the guide rod (13) are slidably connected through the threaded connection. A vertical limiting roller (15) is rotatably installed on the top surface of the slide blocks (14).

2. The fire-resistant and flame-retardant cable cutting device according to claim 1, characterized in that, One end of the bidirectional lead screw (11) rotates through the cutting table (1) and is then fixedly fitted with a handwheel (12). The top surface of the slide (14) is flush with the top surface of the cutting table (1).

3. The fire-resistant and flame-retardant cable cutting device according to claim 1, characterized in that, The cutting mechanism includes a lifting mechanism fixedly installed on the top surface of the cutting table (1). The lifting mechanism includes a top plate (5) set directly above the cutting table (1). The bottom surface of the top plate (5) is fixedly connected to the top surface of the cutting table (1) at the four corners. Below the top plate (5) is a lifting platform (4) that is slidably connected to multiple columns (3), and a U-shaped seat (8) is fixedly installed in the middle of the top surface of the lifting platform (4). An electric push rod (6) is fixedly installed at the center of the top surface of the top plate (5). The telescopic end of the electric push rod (6) slides through the top plate (5) and is fixedly connected to the U-shaped seat (8). The lifting platform (4) is equipped with a cutting assembly.

4. The fire-resistant and flame-retardant cable cutting device according to claim 3, characterized in that, The cutting assembly includes a motor (7) fixedly installed on the top surface of the lifting platform (4) and a blade mounting seat (25) fixedly installed on the bottom surface of the lifting platform (4), wherein a blade (23) is installed in the blade mounting seat (25). The motor (7) is connected to the blade (23) via a pulley structure, and the pulley structure is covered with a protective shell (22) that penetrates the lifting platform (4).

5. A fire-resistant and flame-retardant cable cutting device according to claim 4, characterized in that, The bottom surface of the lifting platform (4) is fixedly installed with a protective component that surrounds the blade (23) and the blade mounting seat (25). The protective component includes a rectangular enclosure one (9) fixedly installed on the top surface of the lifting platform (4), and a rectangular enclosure two (18) is slidably inserted at the bottom end of the rectangular enclosure one (9). The rectangular enclosure one (9) has a protrusion one (19) fixedly installed on the side near the bottom on both sides. The rectangular enclosure two (18) has a protrusion two (21) fixedly installed on the side near the bottom on both sides. The four protrusion two (21) are located directly below the four protrusion one (19). A spring (20) is fixedly connected between the protrusion two (21) and the protrusion one (19) at the corresponding positions. Both sides of the rectangular enclosure (18) have clearance grooves (24) at the bottom center.

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