MPP cable protection pipe positioning cutting equipment

Abstract

The MPP cable protection pipe positioning and cutting equipment comprises a base, a moving assembly, a first fixing assembly, a cutting assembly and a positioning assembly, wherein the moving assembly, the first fixing assembly and the cutting assembly are sequentially arranged on the base; the positioning assembly comprises a positioning plate, a blocking strip rotationally installed on the positioning plate and an extension rod. The mounting rod of the positioning plate is detachably and fixedly connected with the extension rods, and the extension rods are detachably and fixedly connected with one another; the cutting assembly comprises a cutting knife, a transmission shaft, a rotation driving device, a connecting shaft which is slidably and elastically installed on the transmission shaft and slidably installed on the lifting plate, a driving friction plate fixedly installed on the connecting shaft, a driven friction plate intermittently attached to the driving friction plate, a lifting mechanism and a first reciprocating mechanism driven by the connecting shaft. The reciprocating mechanism II is driven by the driven friction plate; accurate positioning and automatic cutting are achieved, and it is guaranteed that the lengths of the cut protection pipes are uniform; and the cutting knife adopts a serrated knife, so that the required working space is small during cutting, and the safety coefficient is high.

Description

Technical Field

[0001] The invention relates to the technical field of protective tube cutting, and in particular to an MPP cable protective tube positioning and cutting device. Background Art

[0002] In the field of power engineering, MPP cable protection tubes are widely used in the laying and protection of cables. With the accelerated advancement of power infrastructure construction, the demand for the processing of MPP cable protection tubes is growing. The traditional cutting method of MPP cable protection tubes often relies on some simple cutting tools, such as circular saws. This circular saw has some disadvantages in actual use: first, due to the instability of manual operation, the manually operated circular saw is prone to uneven cutting surface, and the cutting accuracy is difficult to ensure. It also increases the labor intensity of the operator, and lacks an effective positioning device, making it difficult to ensure the uniform length of the cut protection tube; secondly, the circular saw has a large movement range when in use, and it needs to be moved continuously by humans for sawing, which poses certain risks to the operator; in addition, if an electric saw machine with a positioning mechanism is used, the space required is large (especially for sawing pipes with larger diameters), and it is not convenient for transportation, handling and installation, which causes certain difficulties for on-site construction.

[0003] Therefore, it is necessary to invent an MPP cable protection tube positioning and cutting equipment that can achieve precise positioning and automatic cutting, and requires a smaller working space and a higher safety factor. Summary of the invention

[0004] In view of the above problems, the present invention proposes an MPP cable protection tube positioning and cutting device, and the technical solution used is: An MPP cable protection tube positioning and cutting device, characterized in that it comprises a base, a moving component and a cutting component sequentially arranged on the base, and a positioning component slidably mounted on a mounting hole of the base and limited in extension by a fixed block; The moving assembly includes a moving support frame mounted on the base, a fixed frame slidably and elastically mounted on the moving support frame, a roller rotatably mounted on the fixed frame, a rolling drive device fixedly mounted on the fixed frame for driving the roller to rotate, and a sliding mechanism for driving the fixed frame to slide; The cutting assembly includes a support rod 1, a support rod 2 and a mounting frame fixedly mounted on a base, a lifting plate slidably mounted on the support rod 1, a lifting block slidably mounted on the support rod 2, a cutting knife slidably connected to the lifting plate and the lifting block at both ends, a transmission shaft, a rotation driving device for driving the transmission shaft to rotate, a connecting shaft slidably and elastically mounted on the transmission shaft and slidably mounted on the lifting plate, an active friction plate fixedly mounted on the connecting shaft, a driven friction plate intermittently pressed against the active friction plate, a lifting mechanism, a reciprocating mechanism 1 driven by the connecting shaft, and a reciprocating mechanism 2 driven by the driven friction plate; a lifting slider is slidably mounted on the mounting frame, the driven friction plate is rotatably mounted on the lifting slider, and the rotation driving device is fixedly mounted on the lifting slider.

[0005] Furthermore, the positioning assembly includes a positioning plate and a blocking bar rotatably mounted on the positioning plate; a mounting rod slidably connected to the mounting hole is fixedly mounted on the positioning plate.

[0006] Furthermore, it also includes a first fixed component, which includes a fixed frame fixedly mounted on the base, a rotating rod rotatably mounted on the fixed frame, and an elastic rod with two ends rotatably mounted on the fixed frame and the rotating rod respectively; the mobile support frame is slidably and elastically mounted on the base, and a pushing ring is fixedly mounted on the mobile support frame; a toggle plate is fixedly provided on the rotating rod, and the pushing ring intermittently pushes the toggle plate.

[0007] Furthermore, the positioning assembly also includes an adjusting ring rotatably mounted on the positioning plate; a limiting slide groove 1 extending gradually from the outside to the inside is provided on the positioning plate corresponding to the blocking bar, and a limiting slide groove 2 extending gradually from the outside to the inside is provided on the adjusting ring corresponding to the blocking bar; a pin shaft is fixedly provided on the blocking bar and is slidably and rotatably mounted in the corresponding limiting slide groove 1 and limiting slide groove 2.

[0008] Furthermore, the sliding mechanism includes a rope ring rotatably mounted on a movable support frame, an inner gear ring coaxially fixedly mounted on the rope ring, a movable rack fixedly mounted on a fixed frame, an input gear meshing with the inner gear ring, and an output gear meshing with the movable rack; the input gear and the output gear are both rotatably mounted on the movable support frame and are synchronously transmitted to each other; the rope inside the rope ring is coiled, with one end fixedly mounted in the rope ring and the other end extending out of the rope ring.

[0009] Furthermore, the lifting mechanism includes a transmission gear coaxially slidably installed on the connecting shaft, a support plate fixedly installed on the base, a switching plate slidably installed on the support plate, a lifting rack 1 and a lifting rack 2 symmetrically fixedly installed on the switching plate, and a switching drive device fixedly installed on the support plate for driving the switching plate to move; the transmission gear alternately meshes with the lifting rack 1 and the lifting rack 2, and is limited by the support rod 1.

[0010] Furthermore, the cutting assembly also includes a push plate slidably mounted on the switching plate; a cavity is provided on the push plate, a push slope is provided on the side of the cavity, and the end side of the connecting shaft is placed in the cavity.

[0011] Furthermore, the reciprocating mechanism includes a rotating disk coaxially fixedly installed on the connecting shaft, a toggle rod fixedly installed on the rotating disk, a T-shaped sliding plate slidably installed on the lifting plate and fixedly connected to the cutting knife, and an L-shaped linkage rod rotatably installed on the lifting plate; the L-shaped linkage rod is slidably and rotatably connected to the T-shaped sliding plate; the toggle rod intermittently toggles the T-shaped sliding plate or the L-shaped linkage rod.

[0012] Furthermore, the reciprocating mechanism 2 includes a rotating disk 2 rotatably mounted on the lifting plate and synchronously connected to the driven friction plate, a toggle rod 2 fixedly mounted on the rotating disk 2, a sliding rod slidably and elastically mounted on the lifting plate, and a connecting rod at both ends respectively rotatably mounted on the sliding rod and the cutting knife; the toggle rod 2 intermittently toggles the sliding rod.

[0013] Furthermore, it also includes a second fixing component, which includes a fixing frame 2 fixedly mounted on the base, a rotating rod 2 rotatably mounted on the fixing frame 2, and an elastic rod 3 with two ends respectively rotatably mounted on the fixing frame 2 and the rotating rod 2.

[0014] Furthermore, the positioning assembly also includes an extension rod; the mounting rod and the extension rod, and the extension rods are detachably fixedly connected and slidably mounted with the mounting hole; and a storage groove for storing the extension rod is provided on the base.

[0015] Furthermore, it also includes a protective cover, which is installed on the base.

[0016] Since the present invention adopts the above technical solution, the present invention has the following advantages: 1. The present invention realizes precise positioning and automatic cutting through the coordinated design of the positioning component, the moving component and the cutting component, thereby ensuring that the length of the protective tube obtained by cutting is uniform, and no manual cutting is required, so the safety factor is high; at the same time, since the cutting knife adopts a serrated knife and uses a reciprocating cutting method, the working space required for cutting is small.

[0017] 2. The present invention can effectively fix the protective tube when the protective tube is cut through the coordinated design of the first fixing component and the second fixing component, thereby ensuring the cutting accuracy.

[0018] 3. The protective cover of the present invention can cover the cutting knife, which can not only prevent the operator from contacting the cutting knife, but also effectively prevent dust, thereby protecting the health of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2-Figure 7 The figure is a schematic diagram of the overall structure of the present invention without the protective cover.

[0021] Figure 8-Figure 9 It is a schematic diagram of the assembly structure of the base and the positioning component of the present invention.

[0022] Fig.10 It is a structural schematic diagram of the base of the present invention.

[0023] Figure 11-Figure 12 It is a schematic diagram of the assembly structure of the positioning component of the present invention.

[0024] Fig.13 It is a partial exploded schematic diagram of the positioning assembly of the present invention.

[0025] Fig.14 It is a schematic diagram of the assembly structure of the moving component and the first fixed component of the present invention.

[0026] Figure 15-16 It is a schematic diagram of the structure of the mobile component of the present invention.

[0027] Fig.17 It is a schematic diagram of the internal structure of the rope ring in the moving assembly of the present invention.

[0028] Fig.18 It is a partial structural schematic diagram of the mobile assembly of the present invention.

[0029] Fig.19 For the present invention Fig.18 Schematic diagram of the local enlarged structure at point A in the middle.

[0030] Fig. 20 It is a partial structural schematic diagram of the mobile assembly of the present invention.

[0031] Fig.21 It is a schematic structural diagram of the first fixing component of the present invention.

[0032] Fig. 22 It is a schematic structural diagram of the second fixing component of the present invention.

[0033] Figure 23-Figure 24It is a schematic structural diagram of the cutting assembly of the present invention.

[0034] Fig.25 It is a schematic diagram of the structure of the cutting knife in the cutting assembly of the present invention.

[0035] Figure 26-Figure 28 , Figure 30-Figure 32 and Figure 34-Figure 35 It is a partial structural schematic diagram of the cutting assembly of the present invention.

[0036] Fig.29 It is a cross-sectional schematic diagram of the section BB of the cutting component part structure of the present invention.

[0037] Fig.33 For the present invention Fig.32 Schematic diagram of the local enlarged structure at point B in the middle.

[0038] Figure Number: 1-base; 101-storage slot; 102-fixing block; 103-installation hole; 2-positioning assembly; 201-positioning plate (2011-mounting rod; 2012-limiting slide groove 1); 202-blocking bar; 203-adjusting ring (2031-limiting slide groove 2); 204-extension rod; 3-moving assembly; 301-moving support frame (3011-pushing ring; 3012-mounting block); 302-fixed frame; 303-roller; 304-rolling drive device; 305-rope ring; 306-inner gear ring; 307-input gear; 308-output gear; 309-moving rack; 310-elastic rod 1; 4-first fixing assembly; 401-fixing frame 1; 402-rotating rod 1 (4021-sliding plate); 403-elastic rod 2; 5-second fixing assembly; 501-fixing frame 2; 502-rotating rod 2; 503-elastic rod 3; 6-cutting assembly; 601-support rod 1; 602-support rod 2; 603-cutting knife (6031-slider 1; 6032-slider 2); 604-lifting plate; 605-lifting block; 606-rotation drive device; 607-transmission shaft; 608-lifting mechanism (6081-transmission gear; 6082-lifting rack 1; 6083-lifting rack 2; 6084-switching plate; 6085-switching drive device; 6086-support plate) ;609-reciprocating mechanism 1 (6091-rotating disk 1; 6092-sliding rod 1; 6093-T-shaped sliding plate; 6094-L-shaped linkage rod); 610-reciprocating mechanism 2 (6101-rotating disk 2; 6102-sliding rod 2; 6103-sliding rod; 6104-connecting rod); 611-active friction plate; 612-pushing plate (6121-pushing inclined plane); 613-connecting shaft; 614-driven friction plate; 615-mounting frame; 7- Protective cover. DETAILED DESCRIPTION

[0039] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0040] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "in", "out", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Example

[0041] This embodiment provides an MPP cable protection tube positioning and cutting device, such as Figure 1-Figure 7 As shown, it includes a base 1, a positioning component 2, a moving component 3, a first fixed component 4, a second fixed component 5, a cutting component 6 and a protective cover 7; the moving component 3, the first fixed component 4, the cutting component 6 and the second fixed component 5 are arranged on the base 1 in sequence from front to back; the protective cover 7 covers the base 1 and protects the moving component 3, the first fixed component 4, the second fixed component 5 and the cutting component 6; the positioning component 2 is detachably arranged on the base 1.

[0042] like Figure 8-Figure 13As shown, the positioning assembly 2 includes a positioning plate 201, a blocking bar 202, an adjusting ring 203 and an extension rod 204; two mounting rods 2011 are fixedly installed horizontally at the bottom end of the positioning plate 201; a protective tube outlet is provided on the positioning plate 201; the adjusting ring 203 is rotatably installed on the positioning plate 201 and is located on the periphery of the protective tube outlet; a handle is fixedly provided on the adjusting ring 203; four blocking bars 202 are provided and are evenly distributed on the positioning plate 201 along the circumference; the blocking bar 202 is in an arc shape, and its outermost end is rotatably installed on the positioning plate 201, and a The pin shaft; the positioning plate 201 is provided with an arc-shaped limiting slide groove 1 2012 extending gradually from the outside to the inside corresponding to the blocking bar 202, and the adjusting ring 203 is provided with a linear limiting slide groove 2031 extending gradually from the outside to the inside corresponding to the blocking bar 202, and the pin shaft on the blocking bar 202 is slidably and rotatably installed in the corresponding limiting slide groove 1 2012 and limiting slide groove 2031; the extension rod 204 is provided with a plurality of extension rods, and the extension rods 204 and the installation rods 2011 and the extension rods 204 can be connected together by threaded connection; The base 1 is provided with a storage groove 101 corresponding to the extension rod 204, and the extension rod 204 is stored in the storage groove 101; two mounting holes 103 are provided on the rear end of the base 1, each mounting hole 103 corresponds to a fixing block 102, and the fixing block 102 slides horizontally and is elastically installed on the base 1 through a compression spring; Specifically, according to the actual required length of the cut protective tube, a corresponding number of extension rods 204 are selected and installed on the mounting rod 2011 in sequence; when installing the positioning plate 201 on the base 1, the fixing block 102 is first pushed aside, and then the extension rod 204 or the mounting rod 2011 is inserted into the mounting hole 103, and the fixing block 102 is loosened. The fixing block 102 squeezes the rod body under the rebound action of the compression spring, so that the positioning plate 201 is fixed to the rear side of the base 1; when positioning the protective tube, the adjusting ring 203 is rotated, and the pin shaft of the blocking bar 202 slides in the corresponding limiting slide groove 1 2012 and the limiting slide groove 2 2031, driving the blocking bar 202 to rotate. When the blocking bar 202 rotates toward the protective tube outlet, the blocking bar 202 can block the movement of the protective tube and position the end side of the protective tube. When the blocking bar 202 rotates out of the protective tube outlet, the cut protective tube moves out of the protective tube outlet.

[0043] like Figure 14-Figure 21As shown, the moving assembly 3 includes a moving support frame 301, a fixed frame 302, a roller 303, a rolling drive device 304, a rope ring 305, an inner gear ring 306, an input gear 307, an output gear 308, a moving rack 309 and an elastic rod 1 310; a moving slide groove is provided on the base 1, the moving support frame 301 is in an annular shape as a whole, and is horizontally slidably installed in the moving slide groove of the base 1, and is elastically connected to the base 1 through an elastic rod 1 310, and the elastic rod 1 310 adopts a tension spring rod; there are four fixed frames 302, which are evenly distributed on the moving support frame 301 along the circumference, and a mounting block 3012 is fixedly provided on the mobile support frame 301 corresponding to the fixed frame 302; each fixed frame 302 slides radially along the moving support frame 301 and is elastically installed on the corresponding mounting block 3012 through a compression spring; three rollers 303 are rotatably installed on the radial inner end of each fixed frame 302, and the three rollers 303 are arranged axially and passed through The transmission wheel and the transmission belt are synchronously connected; the rolling drive device 304 adopts a servo motor, and the rolling drive device 304 is fixedly installed on each fixed frame 302, and the output end of the rolling drive device 304 is coaxially fixedly connected with one of the rollers 303 on the fixed frame 302; each fixed frame 302 is fixedly installed with a moving rack 309 extending radially along the moving support frame 301; each moving rack 309 corresponds to a group of input gears 307 and output gears 308, the input gears 307 and the output gears 308 are coaxially fixedly connected and are rotatably installed on the mounting block 3012, and the moving rack 309 is meshed with the corresponding output gear 308; the rope ring 305 is coaxially rotatably installed on the moving support frame 301, and the rope inside it is coiled, and one end is fixedly installed in the rope ring 305, and the other end extends out of the rope ring 305; the inner gear ring 306 is coaxially fixedly installed on the rope ring 305, and meshes with all the input gears 307; The first fixed assembly 4 includes a fixed frame 401, a rotating rod 402 and an elastic rod 403; the fixed frame 401 is in an annular shape as a whole and is fixedly mounted on the base 1; there are eight rotating rods 402, which are evenly distributed on the fixed frame 401 along the circumference; each rotating rod 402 is rotatably mounted on the fixed frame 401 through a rotating shaft, the front end of the rotating rod 402 intermittently squeezes the outer wall of the protection tube, and a toggle plate 4021 is fixedly arranged at the rear; an elastic rod 403 is arranged between the front part of the rotating rod 402 and the fixed frame 401, the elastic rod 403 adopts a compression spring rod, and the rear end of the elastic rod 403 is rotatably mounted on the fixed frame 401, and the front end is rotatably mounted on the front part of the corresponding rotating rod 402; a pushing ring 3011 is fixedly mounted on the rear side of the mobile support frame 301, and the pushing ring 3011 intermittently pushes the toggle plate 4021; Specifically, in the initial state, the mobile support frame 301 is close to the fixed frame 1 401, the push ring 3011 is located at the periphery of the fixed frame 1 402 and pushes the toggle plate 4021 backward, so that the rotating rod 1 402 rotates outward, the elastic rod 2 403 is compressed, and all the rotating rods 1 402 are opened outward, and at the same time, the fixed frame 302 is close to the center of the mobile support frame 301; When preparing to cut, the rope of the rope ring 305 is pulled outward, which can drive the rope ring 305 to rotate, and the inner gear ring 306 rotates synchronously, driving all the input gears 307 to rotate, and the output gear 308 rotates accordingly and drives the moving rack 309 to move, and the moving rack 309 drives the fixed frame 302 to move radially outward along the moving support frame 301 (the compression spring on the fixed frame 302 is compressed), and the protective tube can pass through the moving support frame 301. The rope is loosened, and the fixed frame 302 moves radially inward along the moving support frame 301 under the resetting action of the compression spring, and the roller 303 on the fixed frame 302 squeezes the outer wall of the protective tube, and the rolling drive device 304 drives the roller 303 to move radially outward along the moving support frame 301. 3 rotates, and the roller 303 drives the protection tube to move backward; after the protection tube passes through the fixed frame 1 401 and continues to move until it is blocked by the blocking bar 202, the roller 303 continues to roll to drive the mobile support frame 301 to move forward relative to the protection tube, the elastic rod 1 310 is stretched, and the push ring 3011 moves forward and disengages from the toggle plate 4021, and the rotating rod 1 402 rotates under the reset action of the elastic rod 2 403, and the front part of the rotating rod 1 402 clamps the protection tube to fix the protection tube; the mobile support frame 301 moves forward to the front end of the moving slide slot and then stops moving, and the roller 303 continues to rotate to keep the elastic rod 1 310 stretched, and the rotating rod 1 402 continues to fix the protection tube; like Fig. 22 As shown, the second fixing assembly 5 includes a fixing frame 2 501, a rotating rod 2 502 and an elastic rod 3 503; the fixing frame 2 501 is in an annular shape as a whole and is fixedly mounted on the base 1, and eight rotating rods 2 502 are provided and are evenly distributed on the fixing frame 2 501 along the circumference; the front part of each rotating rod 2 502 is rotatably mounted on the fixing frame 2 501 through a rotating shaft, and the rear part of the rotating rod 2 502 intermittently squeezes the outer wall of the protection tube; an elastic rod 3 503 is provided between the rear part of the rotating rod 2 502 and the fixing frame 2 501; the elastic rod 3 503 adopts a compression spring rod, the front end of which is rotatably mounted on the fixing frame 2 501, and the rear end is rotatably mounted on the corresponding rotating rod 2 502; Specifically, since the second rotating rod 502 converges to the rear, the protective tube can pass through the second fixed frame 501 when moving from front to rear, and push the second rotating rod 502 outward, so that the second rotating rod 502 rotates outward, and the rear of the second rotating rod 502 squeezes the outer wall of the protective tube to assist in fixing the protective tube; when the protective tube is pulled outward, the second rotating rod 502 does not affect the movement of the protective tube.

[0044] like Figure 23-Figure 35 As shown, the cutting assembly 6 includes a support rod 1 601, a support rod 2 602, a cutting knife 603, a lifting plate 604, a lifting block 605, a rotation driving device 606, a transmission shaft 607, a lifting mechanism 608, a reciprocating mechanism 1 609, a reciprocating mechanism 2 610, an active friction plate 611, a push plate 612, a connecting shaft 613, a driven friction plate 614 and a mounting frame 615; The support rod 1 601 and the support rod 2 602 are both vertically fixedly installed on the base 1, the lifting plate 604 is vertically slidably installed on the support rod 1 601, and the lifting block 605 is vertically slidably installed on the support rod 2 602; the cutting knife 603 is a serrated knife and is horizontally arranged, and a slider 1 6031 horizontally slidably connected to the lifting plate 604 is fixedly installed on the left end, and a slider 2 6032 horizontally slidably installed on the lifting block 605 is fixedly installed on the right end; The mounting frame 615 is fixedly mounted on the base 1 and is located on the side where the lifting plate 604 is located. A lifting slider is vertically slidably mounted on the mounting frame 615. The rotation driving device 606 adopts a servo motor and is fixedly mounted on the lifting slider of the mounting frame 615. Its output end is coaxially fixedly connected with the transmission shaft 607. The transmission shaft 607 is in the shape of a hexagonal prism. The connecting shaft 613 is coaxially slidably sleeved on the transmission shaft 607. The transmission shaft 607 is elastically connected to the connecting shaft 613 through a compression spring, so that the connecting shaft 613 can slide axially along the transmission shaft 607, and the transmission shaft 607 can drive the connecting shaft 613 to rotate. The reciprocating mechanism 609 includes a rotating disk 6091, a toggle rod 6092, a T-shaped sliding plate 6093 and an L-shaped linkage rod 6094; the T-shaped sliding plate 6093 includes a horizontal plate and a vertical plate, the horizontal plate of which is fixedly connected to the slider 6031 and horizontally slidably installed on the lifting plate 604; the L-shaped linkage rod 6094 includes a linkage rod 1 and a linkage rod 2, the turning points of the linkage rod 1 and the linkage rod 2 are rotatably installed on the lifting plate 604 through a rotating shaft, and the tail end of the linkage rod 1 is provided with a linear linkage The slide groove and the horizontal plate of the T-shaped sliding plate 6093 are fixedly provided with a pin shaft that is slidably and rotatably installed in the linkage slide groove; the rotating plate 1 6091 is coaxially fixedly installed on the connecting shaft 613, and the connecting shaft 613 penetrates and is slidably and rotatably installed on the lifting plate 604; the rotating plate 1 6091 is fixedly installed with two toggle rods 1 6092 that are perpendicular to the rotating plate 1 6091, and the two toggle rods 1 6092 alternately toggle the vertical plate of the T-shaped sliding plate 6093 or the linkage rod 2 of the L-shaped linkage rod 6094; The lifting mechanism 608 includes a transmission gear 6081, a lifting rack 1 6082, a lifting rack 2 6083, a switching plate 6084, a switching drive device 6085 and a support plate 6086; the transmission gear 6081 is coaxially slidably connected with the connecting shaft 613, and the transmission gear 6081 can rotate with the connecting shaft 613; the transmission gear 6081 is located at the front side of the support rod 1 601, and the connecting shaft 613 passes through the support rod 1 601. Since the transmission gear 6081 is blocked by the support rod 1 601, the connecting shaft 613 can slide axially relative to the transmission gear 6081; the lifting rack 1 6082 and the lifting rack 2 6083 are both vertically arranged and symmetrically fixedly mounted on the switching plate 6084, and the transmission gear 6081 is alternately meshed with the lifting rack 1 6082 and the lifting rack 2 6083; the switching plate 6084 is horizontally slidably mounted on the support plate 6086, and the support plate 6086 is fixedly mounted on the base 1; there are three groups of switching drive devices 6085, all of which adopt servo cylinders, and the switching drive devices 6085 are all fixedly mounted on the support plate 6086, and their telescopic ends are fixedly connected to the switching plate 6084, which are used to drive the switching plate 6084 to move on the support plate 6086; The reciprocating mechanism 610 includes a rotating disk 6101, a toggle rod 6102, a sliding rod 6103 and a connecting rod 6104; the rotating disk 6101 is rotatably mounted on the lifting plate 604, on which two toggle rods 6102 are fixedly mounted, and the toggle rods 6102 and the rotating disk 6101 are perpendicular to each other; the sliding rod 6103 is vertically arranged, and both upper and lower ends thereof are horizontally slidably mounted on the lifting plate 604 and elastically connected to the lifting plate 604 through a compression spring, and the rod body of the sliding rod 6103 is alternately toggled by the two toggle rods 6102; one end of the connecting rod 6104 is rotatably mounted on the rod body of the toggle rod 6102, and the other end is rotatably mounted on the slider 1 6031; The active friction plate 611 and the driven friction plate 614 are both annular, and the transmission shaft 607 passes through the center of the active friction plate 611 and the driven friction plate 614. The friction surfaces of the active friction plate 611 and the driven friction plate 614 are arranged opposite to each other and intermittently pressed against each other; the active friction plate 611 is fixedly mounted on the toggle rod 1 6092 of the rotating disk 1 6091, and is arranged coaxially with the rotating disk 1 6091; the driven friction plate 614 is rotatably mounted on the lifting slider of the mounting frame 615, and is synchronously connected with the rotating disk 2 6101 through a transmission gear and a transmission belt; the push plate 612 is horizontally slidably mounted on the switching plate 6084, and a cavity is provided on the push plate 612, and a push inclined surface 6121 is provided on the side of the cavity, and the front end of the connecting shaft 613 is placed in the cavity of the push plate 612; a pulling handle is fixedly mounted on the push plate 612; and an avoidance groove is provided on the switching plate 6084 corresponding to the connecting shaft 613; Generally, only the reciprocating mechanism 1 609 is needed to drive the cutting knife 603 to move back and forth. When the hardness of the protective tube is relatively high, the reciprocating mechanism 1 609 and the reciprocating mechanism 2 610 are needed to work together to drive the cutting knife 603 to move back and forth.

[0045] The working principle of the cutting assembly 6 is as follows: The rotating driving device 606 drives the transmission shaft 607 to rotate, and the transmission shaft 607 drives the rotating disk 1 6091 to rotate. The two toggle rods 1 6092 on the rotating disk 1 6091 alternately toggle the vertical plate of the T-shaped sliding plate 6093 or the linkage rod 2 of the L-shaped linkage rod 6094, so that the horizontal plate of the T-shaped sliding plate 6093 moves back and forth in the horizontal direction, thereby driving the slider 1 6031 to move back and forth, so that the cutting knife 603 slides back and forth horizontally; at the same time, the transmission shaft 607 drives the connecting shaft 613 to rotate synchronously, and the connecting shaft 613 drives the transmission gear 6081 to rotate; when the transmission gear 6081 is engaged with the lifting rack 1 6082 and the transmission gear 6081 rotates, the transmission gear 6081 moves downward, driving the lifting plate 604 and the lifting slider of the mounting frame 615 to move downward synchronously, so that the cutting knife 603 moves back and forth in the horizontal direction and moves downward at the same time; the transmission gear 6081 moves to the lifting rack 1 6082 After reaching the bottom, the transmission shaft 607 stops rotating, the switching driving device 6085 starts, driving the switching plate 6084 to move horizontally, and the lifting rack 1 6082 and the lifting rack 2 6083 move accordingly, and the transmission gear 6081 is disengaged from the lifting rack 1 6082 and meshed with the lifting rack 2 6083, and then the rotating driving device 606 continues to drive the transmission shaft 607 to rotate in the original direction, and the transmission gear 6081 moves upward, driving the lifting plate 604 and the lifting slider of the mounting frame 615 to move upward synchronously, so that the cutting knife 603 moves upward while reciprocating in the horizontal direction, and after moving to the top, the switching driving device 6085 drives the switching plate 6084 to move, so that the transmission gear 6081 is disengaged from the lifting rack 2 6083 and meshed with the lifting rack 1 6082; as described above, the cutting knife 603 reciprocates in the horizontal direction and moves in the vertical direction at the same time, completing the cutting of the protective tube; When the reciprocating mechanism 1 609 and the reciprocating mechanism 2 610 need to work together, the pulling handle on the pushing plate 612 is pulled outward, and the pushing plate 612 moves horizontally relative to the switching plate 6084. The front end of the connecting shaft 613 contacts the pushing inclined surface 6121 and moves along the pushing inclined surface 6121, so that the connecting shaft 613 moves along its own axis. The connecting shaft 613 drives the active friction plate 611 to move, and the active friction plate 611 is tightly attached to the driven friction plate 614 (the length of the toggle rod 1 6092 is enough to enable it to still toggle the vertical plate of the T-shaped sliding plate 6093 or the linkage rod 2 of the L-shaped linkage rod 6094). At this time, after the rotating drive device 606 drives the transmission shaft 607 to rotate, the driven friction plate 614 can rotate synchronously with the transmission shaft 607; the driven friction plate 614 drives the rotating disk The second disk 6101 rotates, and the two toggle rods 6102 on the rotating disk 6101 alternately toggle the sliding rod 6103, and the sliding rod 6103 moves back and forth under the reset action of the spring, so that the connecting rod 6104 applies a horizontal thrust to the sliding block 6031, and forms a larger combined force with the horizontal thrust applied by the T-shaped sliding plate 6093 to the sliding block 6031, so that the cutting knife 603 can cut the protective tube with greater hardness; when the reciprocating mechanism 610 is no longer needed to work, the pulling handle of the pushing plate 612 is pushed inward, the front end of the connecting shaft 613 is disengaged from the pushing inclined surface 6121, and the compression spring between the transmission shaft 607 and the connecting shaft 613 is reset, pushing the connecting shaft 613 back to its original position, so that the active friction plate 611 is disengaged from the driven friction plate 614.

[0046] The working steps of this embodiment are as follows: In the first step, according to the actual required length of the cut protection tube, a corresponding number of extension rods 204 are selected and installed on the mounting rod 2011 in sequence; the operator moves the fixing block 102 to insert the extension rod 204 into the mounting hole 103, and then loosens the fixing block 102 to fix the positioning plate 201 on the base 1; rotates the adjusting ring 203 to rotate the blocking bar 202 inward; In the second step, the rope of the rope ring 305 is pulled outward to make the fixed frame 302 move radially outward along the mobile support frame 301. Then the operator puts the protection tube into the mobile support frame 301, loosens the rope, and the fixed frame 302 moves radially inward along the mobile support frame 301. The roller 303 clamps the outer wall of the protection tube; the rolling drive device 304 is started, and the roller 303 rotates to drive the protection tube to move, so that the protection tube passes through the fixed frame 1 401 and the fixed frame 2 501, and finally the end side of the protection tube is blocked by the blocking bar 202; In the third step, according to the hardness of the protection tube, the operator decides whether a reciprocating mechanism is needed, and if necessary, pushes the pusher 612; the rotation drive device 606 is started, and the cutting knife 603 reciprocates in the horizontal direction and moves downward to cut the protection tube. After the cutting knife 603 moves to the bottom, the rotation drive device 606 is turned off, and the switching drive device 6085 drives the switching plate 6084 to move. The rotation drive device 606 is started again, the cutting knife 603 moves upward, and the switching drive device 6085 drives the switching plate 6084 back to its original position, and the cutting is completed; In the fourth step, the operator rotates the adjusting ring 203, the blocking bar 202 rotates outward, and the operator draws out the cut protective tube from the protective tube outlet, and then rotates the adjusting ring 203 in the opposite direction to make the blocking bar 202 rotate inward; after the cut protective tube is drawn out, the elastic rod 310 rebounds, pushes the ring 3011 to move backward and toggles the toggle plate 4021, the toggle plate 4021 rotates outward, and the rolling drive device 304 drives the roller 303 to rotate, driving the subsequent protective tube to move backward until the new end side of the protective tube is blocked by the blocking bar 202, ready for the next cutting work.

Claims

1. An MPP cable protection tube positioning and cutting device, characterized in that: It includes a base, a moving component and a cutting component which are sequentially arranged on the base, and a positioning component which is slidably mounted on a mounting hole of the base and limits the extension amount through a fixed block; The moving assembly includes a moving support frame mounted on the base, a fixed frame slidably and elastically mounted on the moving support frame, a roller rotatably mounted on the fixed frame, a rolling drive device fixedly mounted on the fixed frame for driving the roller to rotate, and a sliding mechanism for driving the fixed frame to slide; The cutting assembly includes a support rod 1, a support rod 2 and a mounting frame fixedly mounted on a base, a lifting plate slidably mounted on the support rod 1, a lifting block slidably mounted on the support rod 2, a cutting knife slidably connected to the lifting plate and the lifting block at both ends, a transmission shaft, a rotation driving device for driving the transmission shaft to rotate, a connecting shaft slidably and elastically mounted on the transmission shaft and slidably mounted on the lifting plate, an active friction plate fixedly mounted on the connecting shaft, a driven friction plate intermittently pressed against the active friction plate, a lifting mechanism, a reciprocating mechanism 1 driven by the connecting shaft, and a reciprocating mechanism 2 driven by the driven friction plate; a lifting slider is slidably mounted on the mounting frame, the driven friction plate is rotatably mounted on the lifting slider, and the rotation driving device is fixedly mounted on the lifting slider.

2. According to claim 1, the MPP cable protection tube positioning and cutting device is characterized in that: The positioning assembly comprises a positioning plate and a blocking bar rotatably mounted on the positioning plate; a mounting rod slidably connected to a mounting hole is fixedly mounted on the positioning plate.

3. The MPP cable protection tube positioning and cutting device according to claim 1 is characterized in that: It also includes a first fixed component, which includes a fixed frame fixedly mounted on the base, a rotating rod rotatably mounted on the fixed frame, and an elastic rod rotatably mounted on the fixed frame and the rotating rod at both ends; the movable support frame is slidably and elastically mounted on the base, and a pushing ring is fixedly mounted on the movable support frame; a toggle plate is fixedly provided on the rotating rod, and the pushing ring intermittently pushes the toggle plate.

4. The MPP cable protection tube positioning and cutting device according to claim 2 is characterized in that: The positioning assembly also includes an adjusting ring rotatably mounted on the positioning plate; a limiting slide groove 1 extending gradually from the outside to the inside is provided on the positioning plate corresponding to the blocking bar, and a limiting slide groove 2 extending gradually from the outside to the inside is provided on the adjusting ring corresponding to the blocking bar; a pin shaft is fixedly provided on the blocking bar and is slidably and rotatably mounted in the corresponding limiting slide groove 1 and limiting slide groove 2.

5. The MPP cable protection tube positioning and cutting device according to claim 1 is characterized in that: The sliding mechanism includes a rope ring rotatably mounted on a movable support frame, an inner gear ring coaxially fixedly mounted on the rope ring, a movable rack fixedly mounted on a fixed frame, an input gear meshing with the inner gear ring, and an output gear meshing with the movable rack; the input gear and the output gear are both rotatably mounted on the movable support frame and are synchronously transmitted to each other; the rope inside the rope ring is coiled, with one end fixedly mounted in the rope ring and the other end extending out of the rope ring.

6. The MPP cable protection tube positioning and cutting device according to claim 1, characterized in that: The lifting mechanism includes a transmission gear coaxially slidably installed on the connecting shaft, a support plate fixedly installed on the base, a switching plate slidably installed on the support plate, a lifting rack 1 and a lifting rack 2 symmetrically fixedly installed on the switching plate, and a switching drive device fixedly installed on the support plate for driving the switching plate to move; the transmission gear alternately meshes with the lifting rack 1 and the lifting rack 2, and is limited by the support rod 1.

7. The MPP cable protection tube positioning and cutting device according to claim 6, characterized in that: The cutting assembly also includes a push plate slidably mounted on the switching plate; a cavity is provided on the push plate, a push slope is provided on the side of the cavity, and the end side of the connecting shaft is placed in the cavity.

8. The MPP cable protection tube positioning and cutting device according to claim 1, characterized in that: The reciprocating mechanism includes a rotating disk coaxially fixedly installed on the connecting shaft, a toggle rod fixedly installed on the rotating disk, a T-shaped sliding plate slidably installed on the lifting plate and fixedly connected to the cutting knife, and an L-shaped linkage rod rotatably installed on the lifting plate; the L-shaped linkage rod is slidably and rotatably connected to the T-shaped sliding plate; the toggle rod intermittently toggles the T-shaped sliding plate or the L-shaped linkage rod.

9. The MPP cable protection tube positioning and cutting device according to claim 8, characterized in that: The reciprocating mechanism 2 includes a rotating disk 2 rotatably mounted on the lifting plate and synchronously connected to the driven friction plate, a toggle rod 2 fixedly mounted on the rotating disk 2, a sliding rod slidably and elastically mounted on the lifting plate, and a connecting rod at both ends of which are rotatably mounted on the sliding rod and the cutting knife respectively; the toggle rod 2 intermittently toggles the sliding rod.

10. The MPP cable protection tube positioning and cutting device according to claim 1, characterized in that: It also includes a second fixing component, which includes a fixing frame 2 fixedly mounted on the base, a rotating rod 2 rotatably mounted on the fixing frame 2, and an elastic rod 3 rotatably mounted on the fixing frame 2 and the rotating rod 2 at both ends.

Images