Mpp cable protection pipe positioning and cutting device

Abstract

A kind of MPP cable protection pipe positioning cutting equipment, including base, mobile assembly, first fixed component and cutting component being arranged in sequence on base, and positioning component;Positioning component includes locating plate, blocking strip being rotatably installed on locating plate, and extension rod;Between the mounting rod of locating plate and extension rod, between extension rod and extension rod, can be detachably fixedly connected;Cutting component includes cutting knife, transmission shaft, rotary drive device, connecting shaft being slidably and elastically installed on transmission shaft and slidably installed on lifting plate, driving friction plate being fixedly installed on connecting shaft, driven friction plate being intermittently close to driving friction plate, lifting mechanism, reciprocating mechanism one being driven by connecting shaft, and reciprocating mechanism two being driven by driven friction plate;The present application realizes accurate positioning and automatic cutting, guarantees the length of protection pipe obtained by cutting uniform;And since cutting knife adopts sawtooth knife, the required working space is smaller when cutting, and the safety factor is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of protective pipe cutting, in particular to a MPP cable protective pipe positioning and cutting device. BACKGROUND

[0002] In the field of electric power engineering, MPP cable protective pipes are widely used in the laying and protection of cables. With the accelerated development of electric power infrastructure construction, the demand for MPP cable protective pipes is increasing. Traditional MPP cable protective pipe cutting methods often rely on some simple cutting tools, such as circular saws. However, such circular saws have some drawbacks in actual use. First, the manual operation of the circular saw is unstable, which can easily lead to uneven cutting surfaces and poor cutting precision, increasing the labor intensity of the operator. Moreover, the lack of effective positioning devices makes it difficult to ensure the uniformity of the protective pipe length. Second, the circular saw has a large range of motion, which requires constant manual movement for sawing, posing a certain risk to the operator. In addition, if an electric saw machine with a positioning mechanism is used, it requires a large space (especially for larger diameter pipes), which is not convenient for transportation, handling, and installation, causing difficulties for on-site construction.

[0003] Therefore, it is necessary to invent a MPP cable protective pipe positioning and cutting device that can achieve precise positioning and automatic cutting with a smaller required working space and a higher safety factor. SUMMARY

[0004] To solve the above problems, the present application provides a MPP cable protective pipe positioning and cutting device, which uses the following technical solution:

[0005] A MPP cable protective pipe positioning and cutting device, characterized in that it comprises a base, a moving assembly and a cutting assembly arranged in sequence on the base, and a positioning assembly slidingly installed on the mounting hole of the base and limited in extension amount by the fixing block.

[0006] The moving assembly comprises a moving support frame installed on the base, a fixing frame slidingly and elastically installed on the moving support frame, a roller rotatably installed on the fixing frame, a rolling driving device fixedly installed on the fixing frame for driving the roller to rotate, and a sliding mechanism for driving the fixing frame to slide.

[0007] The cutting assembly comprises a support rod one, a support rod two and a mounting frame fixedly installed on the base, a lifting plate slidably installed on the support rod one, a lifting block slidably installed on the support rod two, a cutting knife with two ends slidably connected with the lifting plate and the lifting block, a transmission shaft, a rotating driving device for driving the transmission shaft to rotate, a connecting shaft 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 close to the driving friction plate, a lifting mechanism, a reciprocating mechanism one driven by the connecting shaft, and a reciprocating mechanism two driven by the driven friction plate; the mounting frame is slidably installed with a lifting sliding block, the driven friction plate is rotatably installed on the lifting sliding block, and the rotating driving device is fixedly installed on the lifting sliding block.

[0008] Further, the positioning assembly comprises a positioning plate and a blocking strip rotatably installed on the positioning plate; the positioning plate is fixedly installed with a mounting rod slidably connected with the mounting hole.

[0009] Further, a first fixing assembly is further included, the first fixing assembly comprises a fixing frame one fixedly installed on the base, a rotating rod one rotatably installed on the fixing frame one, and an elastic rod one with two ends rotatably installed on the fixing frame one and the rotating rod one; the movable support frame is slidably and elastically installed on the base, and the movable support frame is fixedly installed with a pushing ring; the rotating rod one is fixedly provided with a pushing plate, and the pushing ring intermittently pushes the pushing plate.

[0010] Further, the positioning assembly further comprises an adjusting ring rotatably installed on the positioning plate; the positioning plate is provided with a limiting sliding groove one gradually extending from outside to inside corresponding to the blocking strip, and the adjusting ring is provided with a limiting sliding groove two gradually extending from outside to inside corresponding to the blocking strip; the blocking strip is fixedly provided with a pin shaft slidably and rotatably installed in the corresponding limiting sliding groove one and limiting sliding groove two.

[0011] Further, the sliding mechanism comprises a rope ring rotatably installed on the movable support frame, an inner gear ring coaxially and fixedly installed on the rope ring, a movable rack fixedly installed on the fixing frame, an input gear meshed with the inner gear ring, and an output gear meshed with the movable rack; the input gear and the output gear are rotatably installed on the movable support frame and are synchronously transmissionally connected with each other; a rope is wound in the rope ring, one end of the rope is fixedly installed in the rope ring, and the other end of the rope extends out of the rope ring.

[0012] Further, the lifting mechanism comprises a transmission gear coaxially and slidingly installed on the connecting shaft, a support plate fixedly installed on the base, a switching plate slidingly installed on the support plate, a lifting rack one and a lifting rack two symmetrically and fixedly installed on the switching plate, and a switching driving device fixedly installed on the support plate and used for driving the switching plate to move; the transmission gear is alternatively engaged with the lifting rack one and the lifting rack two and is limited by the support rod one.

[0013] Further, the cutting assembly further comprises a pushing plate slidingly installed on the switching plate; the pushing plate is provided with a cavity, and a pushing inclined surface is arranged on the side surface of the cavity; and the end side of the connecting shaft is arranged in the cavity.

[0014] Further, the reciprocating mechanism one comprises a rotating disc one coaxially and fixedly installed on the connecting shaft, a poking rod one fixedly installed on the rotating disc one, a T-shaped sliding plate slidingly installed on the lifting plate and fixedly connected with the cutting knife, and an L-shaped linkage rod rotatingly installed on the lifting plate; the L-shaped linkage rod is slidingly and rotatingly connected with the T-shaped sliding plate; and the poking rod one intermittently pokes the T-shaped sliding plate or the L-shaped linkage rod.

[0015] Further, the reciprocating mechanism two comprises a rotating disc two rotatingly installed on the lifting plate and synchronously drivingly connected with the driven friction plate, a poking rod two fixedly installed on the rotating disc two, a sliding rod slidingly and elastically installed on the lifting plate, and a connecting rod rotatingly installed at two ends of the sliding rod and the cutting knife; the poking rod two intermittently pokes the sliding rod.

[0016] Further, the second fixing assembly comprises a fixing frame two fixedly installed on the base, a rotating rod two rotatingly installed on the fixing frame two, and an elastic rod three rotatingly installed at two ends of the fixing frame two and the rotating rod two.

[0017] Further, the positioning assembly further comprises an extension rod; the mounting rod and the extension rod and the extension rod and the extension rod are detachably and fixedly connected and slidingly installed with the mounting hole; and the base is provided with a storage groove used for storing the extension rod.

[0018] Further, the protective cover is installed on the base.

[0019] Due to the technical scheme, the present application has the following advantages:

[0020] 1. The present application realizes accurate positioning and automatic cutting through the cooperation of the positioning assembly, the moving assembly and the cutting assembly, ensures the uniform length of the protection pipe obtained by cutting, and does not need manual cutting, so that the safety factor is high; at the same time, the cutting knife adopts a sawtooth knife, and the reciprocating cutting mode makes the required working space smaller during cutting.

[0021] 2. The application can effectively fix the protective tube when cutting the protective tube, thereby ensuring cutting accuracy through the cooperation of the first fixing assembly and the second fixing assembly.

[0022] 3. The protective cover of the application can cover the cutting knife, which not only prevents the operator from contacting the cutting knife, but also effectively prevents dust, thereby protecting the health of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the application.

[0024] Figures 2-7 It is a schematic diagram of the overall structure of the application without the protective cover.

[0025] Figures 8-9 It is a schematic diagram of the assembly structure of the base and the positioning assembly.

[0026] Figure 10 It is a schematic diagram of the structure of the base.

[0027] Figures 11-12 It is a schematic diagram of the assembly structure of the positioning assembly.

[0028] Figure 13 It is an exploded schematic diagram of part of the positioning assembly.

[0029] Figure 14 It is a schematic diagram of the assembly structure of the moving assembly and the first fixing assembly.

[0030] Figures 15-16 It is a schematic diagram of the structure of the moving assembly.

[0031] Figure 17 It is a schematic diagram of the internal structure of the rope ring in the moving assembly.

[0032] Figure 18 It is a schematic diagram of part of the moving assembly.

[0033] Figure 19 It is a schematic diagram of part of the moving assembly. Figure 18

[0034] Figure 20 It is a schematic diagram of part of the moving assembly.

[0035] Figure 21 It is a schematic diagram of the structure of the first fixing assembly.

[0036] Figure 22 It is a schematic diagram of the structure of the second fixing assembly.

[0037] ​Figures 23-24 Structure diagram of the cutting assembly of the present application.

[0038] Figure 25 Structure diagram of the cutting knife in the cutting assembly of the present application.

[0039] Figures 26-28 、 Figures 30-32 and Figures 34-35 Structure diagram of the cutting assembly of the present application.

[0040] Figure 29 Structure diagram of the cutting assembly of the present application.

[0041] Figure 33 Structure diagram of the cutting assembly of the present application. Figure 32 Structure diagram of the cutting assembly of the present application.

[0042] Reference signs:

[0043] 1 - base; 101 - receiving groove; 102 - fixed block; 103 - mounting hole;

[0044] 2 - positioning assembly; 201 - positioning plate (2011 - mounting rod; 2012 - limiting sliding groove one); 202 - blocking strip; 203 - adjusting ring (2031 - limiting sliding groove two); 204 - extension rod;

[0045] 3 - moving assembly; 301 - moving support frame (3011 - pushing ring; 3012 - mounting block); 302 - fixed frame; 303 - roller; 304 - rolling driving device; 305 - rope ring; 306 - inner gear ring; 307 - input gear; 308 - output gear; 309 - moving rack; 310 - elastic rod one;

[0046] 4 - first fixed assembly; 401 - fixed frame one; 402 - rotating rod one (4021 - actuating plate); 403 - elastic rod two;

[0047] 5 - second fixed assembly; 501 - fixed frame two; 502 - rotating rod two; 503 - elastic rod three;

[0048] 6 - cutting assembly; 601 - support rod one; 602 - support rod two; 603 - cutting knife (6031 - slider one; 6032 - slider two); 604 - lifting plate; 605 - lifting block; 606 - rotating drive device; 607 - transmission shaft; 608 - lifting mechanism (6081 - transmission gear; 6082 - lifting rack one; 6083 - lifting rack two; 6084 - switching plate; 6085 - switching drive device; 6086 - support plate); 609 - reciprocating mechanism one (6091 - rotating disc one; 6092 - push rod one; 6093 - T-shaped sliding plate; 6094 - L-shaped linkage rod); 610 - reciprocating mechanism two (6101 - rotating disc two; 6102 - push rod two; 6103 - sliding rod; 6104 - connecting rod); 611 - driving friction plate; 612 - push plate (6121 - push inclined surface); 613 - connecting shaft; 614 - driven friction plate; 615 - mounting frame;

[0049] 7 - protective cover. DETAILED DESCRIPTION

[0050] The technical solutions of the present application will be further described below by examples in conjunction with the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, therefore the present application is not limited to the specific examples disclosed below.

[0051] In the description of the present application, it should be noted that the terms "upper", "lower", "in", "out", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. EMBODIMENT

[0052] The present embodiment provides a kind of MPP cable protection pipe positioning cutting equipment, as shown in Figures 1-7 Figure 1, including base 1, positioning assembly 2, moving assembly 3, first fixed assembly 4, second fixed assembly 5, cutting assembly 6 and protective cover 7;Moving assembly 3, first fixed assembly 4, cutting assembly 6 and second fixed assembly 5 are sequentially arranged from front to back on base 1;Protective cover 7 is covered on base 1 and protects moving assembly 3, first fixed assembly 4, second fixed assembly 5 and cutting assembly 6;Positioning assembly 2 is arranged in a detachable manner on base 1.

[0053] As shown in Figures 8-13As shown, the positioning assembly 2 comprises a positioning plate 201, a blocking strip 202, an adjusting ring 203 and an extension rod 204; the bottom end of the positioning plate 201 is horizontally fixedly installed with two installation rods 2011; the positioning plate 201 is provided with a protection tube outlet; the adjusting ring 203 is rotatably installed on the positioning plate 201 and located on the periphery of the protection tube outlet; the adjusting ring 203 is fixedly provided with a handle; the blocking strip 202 is provided with four, which are evenly distributed on the positioning plate 201; the blocking strip 202 is arc-shaped, the outermost end of which is rotatably installed on the positioning plate 201, and the inside of which is fixedly installed with a pin shaft; the positioning plate 201 is provided with an arc-shaped limiting sliding groove one 2012 extending gradually from outside to inside corresponding to the blocking strip 202, and the adjusting ring 203 is provided with a linear limiting sliding groove two 2031 extending gradually from outside to inside corresponding to the blocking strip 202, and the pin shaft on the blocking strip 202 is slidably and rotatably installed in the corresponding limiting sliding groove one 2012 and limiting sliding groove two 2031; the extension rod 204 is provided with a plurality of, which can be connected together through threaded connection between the extension rod 204 and the installation rod 2011 and between the extension rod 204 and the extension rod 204;

[0054] 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; the rear end of the base 1 is provided with two installation holes 103, and each installation hole 103 corresponds to a fixed block 102, which is elastically installed on the base 1 by sliding horizontally and through a compression spring;

[0055] Specifically, according to the actual required length of the cut protection tube, a corresponding number of extension rods 204 are selected and installed on the installation rod 2011 in sequence; when the positioning plate 201 is installed on the base 1, the fixed block 102 is first pushed away, then the extension rod 204 or the installation rod 2011 is inserted into the installation hole 103, the fixed block 102 is loosened, and the fixed block 102 is pressed by the rebounding action of the compression spring, so that the positioning plate 201 is fixed on the rear side of the base 1; when positioning the protection tube, the adjusting ring 203 is rotated, the pin shaft of the blocking strip 202 slides in the corresponding limiting sliding groove one 2012 and limiting sliding groove two 2031, drives the blocking strip 202 to rotate, and when the blocking strip 202 rotates into the protection tube outlet, the blocking strip 202 can block the movement of the protection tube to position the end side of the protection tube, and when the blocking strip 202 rotates out of the protection tube outlet, the cut protection tube moves out of the protection tube outlet.

[0056] As Figures 14-21As 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 annular 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 fixed on the corresponding fixed frame 302 on the moving support frame 301; each fixed frame 302 slides radially along the moving support frame 301 and is elastically installed on the corresponding mounting block 3012 by 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 connected in synchronous transmission; the rolling drive device 304 adopts a servo motor, and a 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 to 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 set of input gears 307 and output gears 308, the input gears 307 and the output gears 308 are coaxially fixedly connected and are both rotatably mounted 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 mounted on the moving support frame 301, and the rope inside it is coiled, and one end is fixedly mounted in the rope ring 305, and the other end extends out of the rope ring 305; the inner gear ring 306 is coaxially fixedly mounted on the rope ring 305 and meshes with all the input gears 307;

[0057] The first fixing assembly 4 includes a fixing frame 1 401, a rotating rod 1 402 and an elastic rod 2 403; the fixing frame 1 401 is in an annular shape as a whole and is fixedly mounted on the base 1; there are eight rotating rods 1 402, which are evenly distributed along the circumference on the fixing frame 1 401; each rotating rod 1 402 is rotatably mounted on the fixing frame 1 401 through a rotating shaft, the front end of the rotating rod 1 402 intermittently squeezes the outer wall of the protective tube, and a toggle plate 4021 is fixedly provided at the rear; an elastic rod 2 403 is provided between the front part of the rotating rod 1 402 and the fixing frame 1 401, the elastic rod 2 403 adopts a compression spring rod, and the rear end of the elastic rod 2 403 is rotatably mounted on the fixing frame 1 401, and the front end is rotatably mounted on the front of the corresponding rotating rod 1 402; 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;

[0058] Specifically, in the initial state, the mobile support frame 301 is close to the fixed frame 1 401, the push ring 3011 is located on the periphery of the fixed frame 1 402 and pushes the toggle plate 4021 backward, causing the rotating rod 1 402 to rotate outward, the elastic rod 2 403 to be compressed, and all the rotating rods 1 402 to open outward. At the same time, the fixed frame 302 is close to the center of the mobile support frame 301;

[0059] 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 movable rack 309 to move, and the movable rack 309 drives the fixed frame 302 to move radially outward along the movable support frame 301 (the compression spring on the fixed frame 302 is compressed), and the protective tube can pass through the movable support frame 301. The rope is released, and the fixed frame 302 moves radially inward along the movable support frame 301 under the reset 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 press the outer wall of the protective tube. 3 rotates, the roller 303 drives the protective tube to move backward; after the protective 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, which drives the movable support frame 301 to move forward relative to the protective tube, the elastic rod 1 310 is stretched, and the push ring 3011 moves forward and disengages from the toggle plate 4021. The rotating rod 1 402 rotates under the resetting action of the elastic rod 2 403, and the front part of the rotating rod 1 402 clamps the protective tube to fix the protective tube; the movable support frame 301 moves forward to the front end of the movable slide slot and stops moving. The roller 303 continues to rotate, so that the elastic rod 1 310 remains stretched, and the rotating rod 1 402 continues to fix the protective tube;

[0060] like Figure 22 As shown, the second fixing assembly 5 includes a second fixing frame 501, a second rotating rod 502, and a third elastic rod 503; the second fixing frame 501 is annular in shape and fixedly mounted on the base 1, and eight second rotating rods 502 are provided and are evenly distributed along the circumference of the second fixing frame 501; the front portion of each second rotating rod 502 is rotatably mounted on the second fixing frame 501 via a rotating shaft, and the rear portion of the second rotating rod 502 intermittently squeezes the outer wall of the protective tube; a third elastic rod 503 is provided between the rear portion of the second rotating rod 502 and the second fixing frame 501; the third elastic rod 503 is a compression spring rod, the front end of which is rotatably mounted on the second fixing frame 501 and the rear end is rotatably mounted on the corresponding second rotating rod 502;

[0061] Specifically, since the rotating rods two 502 converge at the rear, the protection tube can pass through the fixing frame two 501 when moving from front to back, and push the rotating rods two 502 outward, so that the rotating rods two 502 rotate outward, and the rear part of the rotating rods two 502 extrudes the outer wall of the protection tube, thereby assisting in fixing the protection tube; when the protection tube is pulled out, the rotating rods two 502 do not affect the movement of the protection tube.

[0062] As shown in Figures 23-35 The cutting assembly 6 comprises a supporting rod one 601, a supporting rod two 602, a cutting knife 603, a lifting plate 604, a lifting block 605, a rotating driving device 606, a transmission shaft 607, a lifting mechanism 608, a reciprocating mechanism one 609, a reciprocating mechanism two 610, a driving friction plate 611, a pushing plate 612, a connecting shaft 613, a driven friction plate 614 and a mounting frame 615.

[0063] The supporting rod one 601 and the supporting rod two 602 are both vertically fixedly installed on the base 1, the lifting plate 604 is vertically slidably installed on the supporting rod one 601, and the lifting block 605 is vertically slidably installed on the supporting rod two 602; the cutting knife 603 is a sawtooth knife and is horizontally arranged, a sliding block one 6031 which is horizontally slidably connected with the lifting plate 604 is fixedly installed at the left end of the cutting knife 603, and a sliding block two 6032 which is horizontally slidably installed on the lifting block 605 is fixedly installed at the right end of the cutting knife 603.

[0064] The mounting frame 615 is fixedly installed on the base 1 and located at the side where the lifting plate 604 is located, and a lifting sliding block is vertically slidably installed on the mounting frame 615; the rotating driving device 606 is a servo motor and is fixedly installed on the lifting sliding block of the mounting frame 615, and an output end thereof is coaxially and fixedly connected with the transmission shaft 607; the transmission shaft 607 is hexagonal; the connecting shaft 613 is coaxially and slidably sleeved on the transmission shaft 607, and the transmission shaft 607 is elastically connected with 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;

[0065] The reciprocating mechanism 609 comprises a rotating disc 6091, a poking rod 6092, a T-shaped sliding plate 6093 and an L-shaped linkage rod 6094; the T-shaped sliding plate 6093 comprises a horizontal plate and a vertical plate, the horizontal plate is fixedly connected with the sliding block 6031 and is horizontally slidably installed on the lifting plate 604; the L-shaped linkage rod 6094 comprises a linkage rod one and a linkage rod two, the turning points of the linkage rod one and the linkage rod two are rotatably installed on the lifting plate 604 through a rotating shaft, the tail end of the linkage rod one is provided with a linkage sliding groove in a straight line, the horizontal plate of the T-shaped sliding plate 6093 is fixedly provided with a pin shaft which is slidably and rotatably installed in the linkage sliding groove; the rotating disc 6091 is coaxially and fixedly installed on the connecting shaft 613, the connecting shaft 613 penetrates and is slidably and rotatably installed on the lifting plate 604; the rotating disc 6091 is fixedly installed with two poking rods 6092 which are perpendicular to the rotating disc 6091, the two poking rods 6092 alternately poke the vertical plate of the T-shaped sliding plate 6093 or the linkage rod two of the L-shaped linkage rod 6094;

[0066] The lifting mechanism 608 comprises a transmission gear 6081, a lifting rack one 6082, a lifting rack two 6083, a switching plate 6084, a switching driving device 6085 and a support plate 6086; the transmission gear 6081 is coaxially and 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 on the front side of the support rod one 601, the connecting shaft 613 passes through the support rod one 601, and since the transmission gear 6081 is blocked by the support rod one 601, the connecting shaft 613 can slide along the axial direction relative to the transmission gear 6081; the lifting rack one 6082 and the lifting rack two 6083 are both vertically arranged and symmetrically fixedly installed on the switching plate 6084, the transmission gear 6081 alternately engages with the lifting rack one 6082 and the lifting rack two 6083; the switching plate 6084 is horizontally slidably installed on the support plate 6086, the support plate 6086 is fixedly installed on the base 1; the switching driving device 6085 is provided with three groups, all of which are servo air cylinders, and the switching driving device 6085 is fixedly installed on the support plate 6086, the extension end thereof is fixedly connected with the switching plate 6084, and is used to drive the switching plate 6084 to move on the support plate 6086;

[0067] The reciprocating mechanism two 610 comprises a rotating disc two 6101, a poking rod two 6102, a sliding rod 6103 and a connecting rod 6104; the rotating disc two 6101 is rotationally installed on the lifting plate 604, two poking rod two 6102 are fixedly installed on the rotating disc two 6101, and the poking rod two 6102 is perpendicular to the rotating disc two 6101; the sliding rod 6103 is vertically arranged, the upper and lower ends of the sliding rod 6103 are horizontally slidably installed on the lifting plate 604 and are elastically connected to the lifting plate 604 through compression springs, and the rod body of the sliding rod 6103 is alternately poked by the two poking rod two 6102; one end of the connecting rod 6104 is rotationally installed on the rod body of the poking rod two 6102, and the other end is rotationally installed on the sliding block one 6031;

[0068] The driving friction plate 611 and the driven friction plate 614 are both circular rings, the transmission shaft 607 passes through the centers of the driving friction plate 611 and the driven friction plate 614, the friction surfaces of the driving friction plate 611 and the driven friction plate 614 are oppositely arranged and are intermittently close; the driving friction plate 611 is fixedly installed on the poking rod one 6092 of the rotating disc one 6091 and is coaxially arranged with the rotating disc one 6091; the driven friction plate 614 is rotationally installed on the lifting sliding block of the mounting frame 615 and is synchronously transmissionally connected with the rotating disc two 6101 through a transmission gear and a transmission belt; the pushing plate 612 is horizontally slidably installed on the switching plate 6084, the pushing plate 612 is provided with a cavity, a pushing inclined surface 6121 is arranged on the side surface of the cavity, and the front end of the connecting shaft 613 is arranged in the cavity of the pushing plate 612; the pushing plate 612 is fixedly installed with a pulling handle; the switching plate 6084 is provided with an avoiding groove corresponding to the connecting shaft 613;

[0069] Generally, only the reciprocating mechanism one 609 is needed to drive the cutting knife 603 to reciprocate, when the hardness of the protection pipe is relatively large, the reciprocating mechanism one 609 and the reciprocating mechanism two 610 are needed to jointly drive the cutting knife 603 to reciprocate.

[0070] The working principle of the cutting assembly 6 is as follows:

[0071] The rotating driving device 606 drives the transmission shaft 607 to rotate, the transmission shaft 607 drives the rotating disc one 6091 to rotate, the two lever rods one 6092 on the rotating disc one 6091 alternately drive the vertical plate of the T-shaped sliding plate 6093 or the linkage rod two of the L-shaped linkage rod 6094, the horizontal plate of the T-shaped sliding plate 6093 moves reciprocatingly in the horizontal direction, thereby driving the sliding block one 6031 to move reciprocatingly, and the cutting knife 603 moves reciprocatingly in the horizontal direction; meanwhile, the transmission shaft 607 drives the connecting shaft 613 to rotate synchronously, the connecting shaft 613 drives the transmission gear 6081 to rotate; when the transmission gear 6081 meshes with the lifting rack one 6082 and the transmission gear 6081 rotates, the transmission gear 6081 moves downward, driving the lifting plate 604 and the lifting sliding block of the mounting frame 615 to move downward synchronously, so that the cutting knife 603 moves downward while moving reciprocatingly in the horizontal direction; after the transmission gear 6081 moves to the bottom end of the lifting rack one 6082, the transmission shaft 607 stops rotating, the switching driving device 6085 is started to drive the switching plate 6084 to move horizontally, the lifting rack one 6082 and the lifting rack two 6083 move accordingly, the transmission gear 6081 disengages from the lifting rack one 6082 and meshes with the lifting rack two 6083, then the rotating driving device 606 continues to drive the transmission shaft 607 to rotate in the original direction, the transmission gear 6081 moves upward, driving the lifting plate 604 and the lifting sliding block of the mounting frame 615 to move upward synchronously, so that the cutting knife 603 moves upward while moving reciprocatingly in the horizontal direction, after moving to the top end, the switching driving device 6085 drives the switching plate 6084 to move, so that the transmission gear 6081 disengages from the lifting rack two 6083 and meshes with the lifting rack one 6082; as described above, the cutting knife 603 moves reciprocatingly in the horizontal direction and moves in the vertical direction at the same time, completing the cutting of the protective tube;

[0072] When the reciprocating mechanism one 609 and the reciprocating mechanism two 610 are needed to work together, pull the pull handle on the push plate 612 outward, the push plate 612 moves horizontally relative to the switch plate 6084, the front end of the connecting shaft 613 contacts with the push slope 6121 and moves along the push slope 6121, the connecting shaft 613 moves along its own axis, the connecting shaft 613 drives the driving friction plate 611 to move, the driving friction plate 611 is close to the driven friction plate 614 (the length of the first lever 6092 is enough to still drive the vertical plate of the T-shaped sliding plate 6093 or the second lever of the L-shaped linkage lever 6094), at this time, the rotating drive device 606 drives the transmission shaft 607 to rotate, and the driven friction plate 614 can rotate synchronously with the transmission shaft 607; the driven friction plate 614 drives the rotating disc two 6101 to rotate, the two first levers 6102 on the rotating disc two 6101 alternately drive the sliding lever 6103, the sliding lever 6103 moves reciprocatingly under the reset action of the spring, so that the connecting rod 6104 exerts a horizontal pushing force on the sliding block one 6031, and a larger resultant force is formed with the horizontal pushing force exerted on the sliding block one 6031 by the T-shaped sliding plate 6093, so that the cutting knife 603 can cut the protective tube with relatively large hardness; when the reciprocating mechanism two 610 is no longer needed to work, push the pull handle of the push plate 612 inward, the front end of the connecting shaft 613 is separated from the push slope 6121, the compression spring between the transmission shaft 607 and the connecting shaft 613 is reset, the connecting shaft 613 is pushed back to the original position, and the driving friction plate 611 is separated from the driven friction plate 614.

[0073] The working steps of the embodiment are as follows:

[0074] Firstly, according to the actual required length of the cut protective tube, a corresponding number of extension rods 204 are selected and sequentially installed on the mounting rod 2011; the operator drives the fixed block 102, inserts the extension rod 204 into the mounting hole 103, then releases the fixed block 102, and fixes the positioning plate 201 on the base 1; the operator rotates the adjusting ring 203, and rotates the blocking strip 202 inward;

[0075] Secondly, the operator pulls the rope of the rope ring 305 outward, moves the fixed frame 302 radially outward along the moving support frame 301, then sends the protective tube into the moving support frame 301, releases the rope, and moves the fixed frame 302 radially inward along the moving support frame 301, so that the roller 303 clamps the outer wall of the protective tube; the operator starts the rolling drive device 304, rotates the roller 303, drives the protective tube to move, and makes the protective tube pass through the fixed frame one 401 and the fixed frame two 501, and finally the end side of the protective tube is blocked by the blocking strip 202;

[0076] Third step, according to the hardness of the protective tube, the operator decides whether to need reciprocating mechanism, if need to push the push 612, start rotating drive device 606, cutting knife 603 in the horizontal direction reciprocating and move down, cutting the protective tube, cutting knife 603 moves to the bottom, rotating drive device 606 is closed, switching drive device 6085 drive switching plate 6084 moves, rotating drive device 606 is started again, cutting knife 603 moves up, switching drive device 6085 drive switching plate 6084 back to the original position, cutting is completed;

[0077] Fourth step, the operator rotates the adjusting ring 203, the blocking bar 202 rotates outward, the operator extracts the cut protective tube from the protective tube outlet, and then reversely rotates the adjusting ring 203 to make the blocking bar 202 rotate inward; after the cut protective tube is extracted, the elastic rod one 310 rebounds, the push ring 3011 moves backward and pushes the push plate 4021, the push plate 4021 rotates outward, the rolling drive device 304 drives the roller 303 to rotate, and drives the subsequent protective tube to move backward until the new end side of the protective tube is blocked by the blocking bar 202, preparing 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 assembly and a cutting assembly sequentially arranged on the base, and a positioning assembly 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 the 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 for driving a rotation drive device to rotate the transmission shaft, a connecting shaft slidably and elastically mounted on the transmission shaft and slidably mounted on the lifting plate, a lifting mechanism, and a reciprocating mechanism 1 driven by the connecting shaft; a lifting slider is slidably mounted on the mounting frame, and the rotating drive device is fixedly mounted on the lifting slider; The first fixing assembly further includes a fixing frame fixedly mounted on the base, a rotating rod rotatably mounted on the fixing frame, and an elastic rod rotatably mounted at both ends on the fixing frame and the rotating rod; the movable support frame is slidably and elastically mounted on the base, and a push ring is fixedly mounted on the movable support frame; a toggle plate is fixedly provided on the rotating rod, and the push ring intermittently pushes the toggle plate; 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.

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

4. 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 mounted on the connecting shaft, a support plate fixedly mounted on the base, a switching plate slidably mounted on the support plate, a lifting rack 1 and a lifting rack 2 symmetrically fixedly mounted on the switching plate, and a switching drive device fixedly mounted 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.

5. 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 mounted on the connecting shaft, a toggle rod fixedly mounted on the rotating disk, a T-shaped sliding plate slidably mounted on the lifting plate and fixedly connected to the cutting knife, and an L-shaped linkage rod rotatably mounted 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.

6. 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 with two ends rotatably mounted on the fixing frame 2 and the rotating rod 2 respectively.

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