A fixed-length cutting device for a drawstring

Abstract

The application provides a fixed-length cutting device for pull rope, belonging to the technical field of pull rope cutting, comprising a rack provided with a plurality of winding discs; a pretreatment mechanism, a line pressing mechanism provided with a line pressing part, a fuse mechanism provided with a line cutting part, a traction mechanism provided with a line clamping part and a pulling mechanism provided with a line pulling part are sequentially arranged along the output direction of the pull rope, wherein the rack is provided with a sliding channel in sliding cooperation with the pulling mechanism, and the line pulling part abuts against the pull rope within a preset height, and the pull rope is pulled to a position of a preset cutting length along with the movement of the pulling mechanism along the sliding channel. The application can avoid the occurrence of edge scattering or slip ball phenomenon at the line cutting end, and improve the cutting precision.

Description

Technical Field

[0001] This invention belongs to the field of rope cutting technology, and relates to a cutting device, particularly a fixed-length cutting device for ropes. Background Technology

[0002] Rope cutting devices are used to quickly and accurately cut various types of ropes, and they are divided into manual and automatic types. Manual models, such as scissors and wire cutters, are suitable for small-batch operations; automatic models contain motor-driven blades and can be set to automatically cut to a specified length, and are commonly used in factory assembly lines. Their core components are sharp blades combined with a fixing mechanism to ensure a clean cut, improving cutting efficiency and consistency.

[0003] However, existing drawstrings have the following problems during the cutting process:

[0004] Firstly, existing pull cords are generally made by twisting multiple thin strands of rope to the required diameter. When the pull cord is cut to a fixed length, the ends often have frayed edges, making it impossible to thread the cord directly. The cut ends need to be heat-pressed before threading, affecting efficiency. Secondly, curtain pull cords are typically beaded cords, with beads strung together and gaps between adjacent beads. If the existing fixed-length cutting process is used, the ends of the beaded cord are not sealed, potentially causing bead slippage.

[0005] Secondly, the existing pull ropes have a certain degree of elasticity, and when the pull ropes are cut, multiple pull ropes are cut simultaneously, causing the multiple pull ropes to cross each other. As a result, the lengths of the pull ropes after the fixed length are not uniform. If the length after cutting is insufficient, it cannot be used, which will cause waste of materials; if the cut length is too long, it needs to be further trimmed, which reduces work efficiency. Summary of the Invention

[0006] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a fixed-length cutting device for draw ropes that can avoid fraying or slippage at the tangent end and improve cutting accuracy.

[0007] The objective of this invention can be achieved through the following technical solution: a fixed-length cutting device for pull ropes, comprising:

[0008] A frame on which multiple winding reels are mounted;

[0009] Along the output direction of the pull rope, the frame is sequentially equipped with a pretreatment mechanism, a wire pressing mechanism with a wire pressing section, a wire cutting mechanism with a wire cutting section, a traction mechanism, and a pulling mechanism with a wire pulling section.

[0010] The pretreatment mechanism comprises a distance-reducing structure for reducing the distance between two adjacent pull ropes, a reversing structure for converting the vertically arranged multiple pull ropes into horizontally arranged ones in the same horizontal plane, a tensioning structure for synchronously tensioning the multiple pull ropes after reversing, and a guide structure for linearly conveying the pull ropes, wherein the distance-reducing structure is connected to a first mounting plane of the rack, the reversing structure, the tensioning structure and the guide structure are connected to a second mounting plane of the rack, and the first mounting plane is different in height from the second mounting plane;

[0011] The traction mechanism comprises a clamping structure with a clamping part, a translation structure for driving the clamping structure to move in the pull rope output direction, and a lifting structure for driving the clamping structure to move in a direction perpendicular to the pull rope output direction, wherein the output ends of the multiple pull ropes are synchronously clamped by the clamping part, and the output ends of the pull ropes are moved to a preset height under the action of the lifting structure, which causes a height difference in the vertical direction between the output ends of the pull ropes and the pull rope segments on the pressing part;

[0012] The rack is provided with a sliding channel for sliding cooperation with the traction mechanism, and the pull part abuts against the pull rope in the preset height, and the pull rope is pulled to a position of a preset cutting length along with the movement of the traction mechanism along the sliding channel.

[0013] In the above-described fixed-length cutting device for pull ropes, a stand is connected to the first mounting plane, and a plurality of pay-off structures are connected to the stand and are arranged left and right in the length direction of the stand, wherein the output end of each pay-off structure is provided with the winding reel.

[0014] In the above-described fixed-length cutting device for pull ropes, the pay-off structure comprises two mounting plates arranged opposite to each other and connected to the two sides of the stand, namely a first mounting plate and a second mounting plate, a bearing is connected to the first mounting plate, and a spring wheel is connected to the second mounting plate; a rotating shaft is inserted into the bearing, and one end of the rotating shaft is provided with a friction wheel in contact with the spring wheel, wherein two stop wheels, namely a first stop wheel and a second stop wheel, are nested on the rotating shaft, the first stop wheel is arranged away from the end where the friction wheel is located, the second stop wheel is arranged close to the end where the friction wheel is located, and the winding reel is clamped between the first stop wheel and the second stop wheel.

[0015] In the above-described fixed-length cutting device for pull ropes, the distance-reducing structure comprises a vertical post connected to the rack, and a threading plate connected to one side of the vertical post facing the stand, wherein the threading plate is provided with a plurality of threading holes, a plurality of optical fiber supports, each of which is provided with a notch, the positions of the plurality of notches correspond one by one to the positions of the plurality of threading holes, and the plurality of threading holes are divided into two groups, the two groups of threading holes are located on the two sides of the threading plate respectively, and each group of threading holes is used for the output end of the pull rope on the winding reel on the same side of the stand to pass through.

[0016] In the length cutting device for pulling rope, the reversing structure comprises a reversing plate connected to the frame, a plurality of reversing holes are arranged on the reversing plate, and a first guide sleeve is embedded in each reversing hole, wherein the plurality of reversing holes are in the same horizontal plane, and the number of the reversing holes is equal to the number of the threading holes; the guide structure comprises a guide plate connected to the frame, a plurality of guide holes are arranged on the guide plate, and a second guide sleeve is embedded in each guide hole, wherein the plurality of guide holes are in the same horizontal plane, and the positions of the plurality of guide holes correspond to the positions of the plurality of reversing holes one by one.

[0017] In the length cutting device for pulling rope, the tensioning structure comprises a C-shaped tensioning bracket, the closed end of the tensioning bracket is connected to the frame, the two sides of the open end of the tensioning bracket are connected by a guide shaft, a plurality of rotating rollers are nested along the axis of the guide shaft, each rotating roller is provided with a wire passing groove, and the positions of the plurality of wire passing grooves correspond to the positions of the plurality of reversing holes or the positions of the plurality of guide holes one by one; a C-shaped wire pressing bracket is arranged, the two sides of the open end of the wire pressing bracket are correspondingly rotatably connected to the two sides of the open end of the tensioning bracket, the closed end of the wire pressing bracket serves as a wire pressing end, and the angle between the wire pressing bracket and the tensioning bracket after the wire pressing bracket rotates is locked by a fastener.

[0018] In the length cutting device for pulling rope, the wire pressing mechanism comprises guide columns located on both sides of the wire pressing channel, a bottom plate, a fixed plate, a lifting plate and a top plate are sequentially arranged along the axis of the guide column, the bottom plate is connected to the frame, the two ends of the guide column are connected to the bottom plate and the top plate respectively, the fixed plate is located between the bottom plate and the top plate, and the lifting plate is located between the fixed plate and the top plate; a wire pressing motor is connected to the top plate, the output end of the wire pressing motor penetrates the top plate and is connected to the lifting plate, the lifting plate moves between the top plate and the fixed plate along the axis of the guide column by driving the wire pressing motor, wherein the wire pressing part comprises a first wire pressing plate connected to the fixed plate and a second wire pressing plate connected to the lifting plate, the wire pressing channel is formed between the first wire pressing plate and the second wire pressing plate, and the tightening or loosening of the pulling rope is realized by the lifting of the lifting plate.

[0019] In the length cutting device for pulling rope, the fusing mechanism comprises a cutting motor connected to the top plate, and the output end of the cutting motor is connected with an insulating plate; two pull tubes, one end of the two pull tubes is connected to the insulating plate, and the other end of the two pull tubes is connected by a hot cutting knife; when the pull tube and the hot cutting knife are both made of metal conductive material, one of the two pull tubes is connected to the positive electrode, and the other pull tube is connected to the negative electrode, and the hot cutting knife is heated after being electrified; when the pull tube is made of insulating material and the hot cutting knife is made of metal conductive material, one end of the hot cutting knife is connected to the positive electrode, and the other end is connected to the negative electrode, and the hot cutting knife is heated after being electrified.

[0020] In the length cutting equipment for pulling rope, the traction mechanism comprises a support connected to the frame and a support plate horizontally connected to the support, the translation structure comprises a translation cylinder, one side of the cylinder body of the translation cylinder is connected to the support plate, the other side of the cylinder body is slidably connected to a first sliding plate, and the first sliding plate is connected to the output end of the translation cylinder; the lifting structure comprises a lifting cylinder, one side of the cylinder body of the lifting cylinder is connected to the first connecting plate, the other side of the cylinder body is slidably connected to a second sliding plate, and the second sliding plate is connected to the output end of the lifting cylinder, and the second connecting plate is connected to the second sliding plate; the clamping structure comprises a clamping cylinder, the clamping jaw connected to the output end of the clamping cylinder comprises a clamping jaw, the output end of the clamping cylinder is used to drive the two clamping jaws to move towards each other or move away from each other, so that the output end of the pulling rope is clamped or released.

[0021] In the length cutting equipment for pulling rope, the two sides of the sliding channel are provided with a sliding rail, a corresponding sliding block is slidably connected to each sliding rail, and a sliding seat is connected to each sliding block, and a wire connecting bucket is arranged between the two sliding rails; the traction mechanism comprises a traction cylinder connected to one of the sliding seats, a guide rod connected to the output end of the traction cylinder, and a wire spool connected to the other sliding seat, wherein the axis of the guide rod is arranged in line with the axis of the wire spool, and the guide rod and the wire spool are spliced to form a pulling wire part; a horizontal pushing cylinder is further connected to the sliding seat connected with the traction cylinder, and a pushing block is connected to the output end of the horizontal pushing cylinder, wherein one end of the pushing block is nested with the guide rod.

[0022] Compared with the prior art, the length cutting equipment for pulling rope has the following advantages:

[0023] (1) The length cutting equipment for pulling rope melts the pulling rope through the wire cutting part of the melting mechanism, so that the cut end surface of the pulling rope is sealed by the high-temperature melting of the melting mechanism, and the scattered edge phenomenon is avoided, the subsequent rapid threading process of the pulling rope is facilitated, and the threading efficiency is improved.

[0024] (2) The plurality of wire feeding structures are arranged in a left-right staggered manner along the length direction of the stand, so that the relative distance between the uppermost wire feeding structure and the lowermost wire feeding structure is shortened, and the operator can replace the wire reel conveniently.

[0025] (3), when pulling the output end of the winding disc on the pull rope, the winding disc, the first blocking wheel, the second blocking wheel, the rotating shaft and the friction wheel rotate synchronously, at this time, the elastic wheel and the friction wheel rub each other, thereby playing a buffering role, so that when the pull rope is pulled to the preset cutting length, the winding disc will not continue to rotate due to inertia, thereby avoiding the continuous output of the pull rope to cause the wire to be too long, and further improving the reliability of the fixed length cutting of the pull rope;

[0026] (4), by setting the optical fiber support, whether the pull rope passes through the threading hole can be monitored in real time, when there is no pull rope passing through the gap corresponding to the optical fiber support, it indicates that there is no pull rope on the winding disc corresponding to the threading hole, at this time, the staff can be notified to replace the corresponding winding disc in time to ensure the continuous operation of the equipment;

[0027] (5), by setting the reversing structure, the two groups of vertically output pull ropes are converted into one group of horizontally output pull ropes, so that the end portions of the adjacent two pull ropes are prevented from sticking together when the multiple pull ropes are fused synchronously, the convenience of subsequent pull rope threading is improved, in addition, the first guide sleeve is arranged in the reversing hole to prevent the pull rope from being worn on the surface during the dragging process, and the damage caused by the pull rope during the conveying process is reduced;

[0028] (6), by setting the push cylinder and the push block matched therewith, when the guide rod is retracted, the push block pushes the pull rope suspended on the guide rod into the lower connecting box, thereby further improving the reliability of the take-up. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structure diagram of a fixed length cutting device for a pull rope.

[0030] Figure 2 is Figure 1 is an enlarged structure diagram of position A in FIG. 1.

[0031] Figure 3 is a partial structure diagram of a fixed length cutting device for a pull rope.

[0032] Figure 4 is Figure 3 is an enlarged structure diagram of position B in FIG. 1.

[0033] Figure 5 is a structure diagram of a pay-off structure in a preferred embodiment of the present application.

[0034] Figure 6 is a structure diagram of a guide structure in a preferred embodiment of the present application.

[0035] Figure 7 is a structure diagram of a tensioning structure in a preferred embodiment of the present application.

[0036] Figure 8 Fig. 3 is a structural schematic diagram of a pressing mechanism and a fusing mechanism combined in a preferred embodiment of the present application.

[0037] Figure 9 Fig. 4 is a structural schematic diagram of a traction mechanism in a preferred embodiment of the present application.

[0038] Figure 10 Fig. 5 is a structural schematic diagram of a dragging mechanism in a preferred embodiment of the present application.

[0039] Fig. 1 is a structural schematic diagram of a fiber cable processing device in a preferred embodiment of the present application.

[0040] 100, rack; 110, first mounting plane; 120, second mounting plane; 130, stand; 140, slide rail; 150, slide block; 160, slide seat; 170, wire connecting hopper;

[0041] 200, pretreatment mechanism; 210, distance reducing structure; 211, vertical post; 212, threading plate; 2121, threading hole; 213, optical fiber support; 2131, notch; 220, reversing structure; 221, reversing plate; 2211, reversing hole; 222, first guide sleeve; 230, tensioning structure; 231, tensioning support; 232, guide shaft; 233, rotating roller; 2331, wire passing groove; 234, wire pressing support; 240, guide structure; 241, guide plate; 2411, guide hole; 242, second guide sleeve; 250, wire releasing structure; 251, wire reel; 252, first mounting plate; 253, second mounting plate; 254, bearing; 255, spring wheel; 256, rotating shaft; 257, friction wheel; 258, first blocking wheel; 259, second blocking wheel;

[0042] 300, pressing mechanism; 310, guide post; 320, bottom plate; 330, fixing plate; 340, lifting plate; 350, top plate; 360, wire pressing motor; 370, first wire pressing plate; 380, second wire pressing plate; 390, guide sleeve;

[0043] 400, fusing mechanism; 410, cutting motor; 420, insulating plate; 430, pipe pulling; 440, hot cutting knife;

[0044] 500, traction mechanism; 510, clamping structure; 511, clamping air cylinder; 512, clamping jaw; 520, translation structure; 521, translation air cylinder; 522, first slide plate; 530, lifting structure; 531, lifting air cylinder; 532, first connecting plate; 533, second slide plate; 534, second connecting plate; 540, support column; 550, support plate;

[0045] 600, dragging mechanism; 610, dragging air cylinder; 620, guide rod; 630, wire spool; 640, horizontal pushing air cylinder; 650, pushing block. DETAILED DESCRIPTION

[0046] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0048] As shown in Figures 1 to 10 , the present application provides a fixed-length cutting device for pull rope, comprising:

[0049] A rack 100, on which a storage area is arranged, and a plurality of winding reels 251 are arranged in the storage area;

[0050] A distance reduction structure 210 for reducing the distance between two adjacent pull ropes is arranged on the rack 100 along the output direction of the pull rope, a reversing structure 220 for converting a plurality of vertically arranged pull ropes into a plurality of horizontally arranged pull ropes in the same horizontal plane, a tensioning structure 230 for synchronously tensioning the plurality of pull ropes after reversing, and a guide structure 240 for linearly conveying the pull rope, wherein the distance reduction structure 210 is connected to a first mounting plane 110 of the rack 100, the reversing structure 220, the tensioning structure 230 and the guide structure 240 are connected to a second mounting plane 120 of the rack 100, and there is a height difference between the first mounting plane 110 and the second mounting plane 120, wherein the distance reduction structure 210, the reversing structure 220, the tensioning structure 230 and the guide structure 240 constitute a pretreatment mechanism 200 before the fixed-length cutting of the pull rope;

[0051] A pressing mechanism 300, a cutting mechanism 400 and a traction mechanism 500 are further arranged on the rack 100 along the output direction of the pull rope, the pressing mechanism 300 is provided with a pressing part, the cutting mechanism 400 is provided with a cutting part, the traction mechanism 500 is provided with a clamping structure 510, a translation structure 520 for driving the clamping structure 510 to move along the output direction of the pull rope, and a lifting structure 530 for driving the clamping structure 510 to move perpendicular to the output direction of the pull rope, wherein the clamping structure 510 is provided with a clamping part, the output ends of the plurality of pull ropes are synchronously clamped by the clamping part, and the output ends of the pull ropes are moved to a preset height under the action of the lifting structure 530, the height difference in the vertical direction between the output ends of the pull ropes and the pull rope segments on the pressing part is formed through the preset height, the plurality of pull ropes in the preset cutting length are synchronously pressed by the pressing part, and the plurality of pull ropes in the preset cutting length are synchronously cut by the cutting part;

[0052] The rack 100 is further provided with a sliding channel of the pull rope in the output direction of the pull rope, and a dragging mechanism 600 is arranged on the sliding channel, and the output end of the dragging mechanism 600 is provided with a pull line part, wherein the pull line part abuts with the pull rope segment in the preset height, and with the movement of the dragging mechanism 600 along the sliding channel, the pull rope is pulled to the position of the preset cutting length.

[0053] The working principle of the fixed-length cutting equipment for the pull rope provided by the application is as follows: firstly, a plurality of spools 251 wound with the pull rope are loaded in the storage area, and the output end of the pull rope on each spool 251 is pulled out to a certain length; secondly, the output end of the pull rope on each spool 251 is sequentially passed through the threading hole 2121 on the distance shortening structure 210, the reversing hole 2211 on the reversing structure 220, the wire passing groove 2331 on the tensioning structure 230, the guide hole 2411 on the guide structure 240 and the wire pressing channel on the wire pressing part; then the wire clamping part is close to and clamps the naturally drooping output end of the pull rope on the wire pressing channel under the action of the translation structure 520 and the clamping structure 510, and the output end of the pull rope is lifted to a preset height under the action of the lifting structure 530, at this time, the pull rope is in a curved state, and the pull line part of the dragging mechanism 600 is located between the wire clamping part and the wire pressing part, and the pull line part abuts with the inner side of the curved direction of the pull rope; then the pull line part is moved along the sliding channel by the dragging mechanism 600, since the output end of the pull rope is in a fixed state, with the movement of the pull line part, the pull rope on the spool 251 is continuously output, when the pull line part moves to the position of the preset cutting length of the pull rope, at this time, the pull rope between the wire clamping part and the spool 251 forms a C-shaped structure, and the pull line part is located at the closed end of the C-shaped structure, at this time, the pull rope in the wire pressing channel is pressed by the wire pressing part; finally, the pull rope at the corresponding position is fused by the wire cutting part, and a new output end of the pull rope is formed at the end of the fused pull rope, wherein the new output end of the pull rope is naturally drooped on one side of the wire pressing channel, and the cut pull rope is hung on the pull line part, which is convenient for the staff to collect the material.

[0054] The fixed-length cutting equipment for the pull rope provided by the application fuses the pull rope by the wire cutting part of the fusing mechanism 400, so that the cut end face of the pull rope is sealed by the high-temperature fusing seal of the fusing mechanism 400, avoiding the scattered edge phenomenon, facilitating the subsequent rapid threading treatment of the pull rope, in addition, the multiple pull ropes are separated from each other in the pretreatment mechanism 200, so that there is a gap between the two adjacent pull ropes, thereby avoiding the adhesion phenomenon between the fused seal end faces of any two adjacent pull ropes, and further avoiding the need for combing treatment of the cut pull rope before threading, improving the threading efficiency; in addition, the tensioning degree of each pull rope is the same by the tensioning structure 230 in the pretreatment mechanism 200, thereby improving the accuracy of the fixed-length cutting of the pull rope.

[0055] Preferably, the storage area is provided with a column 130 connected with the rack 100, and a plurality of pay-off structures 250 are connected on the column 130, and the plurality of pay-off structures 250 are arranged left and right staggered along the length direction of the column 130, wherein the output end of the pay-off structure 250 is provided with the winding reel 251.

[0056] In the embodiment, the plurality of pay-off structures 250 are arranged left and right staggered along the length direction of the column 130, so as to shorten the relative distance between the uppermost pay-off structure 250 and the lowermost pay-off structure 250, thereby facilitating the operator to replace the winding reel 251.

[0057] Further preferably, the pay-off structure 250 comprises two mounting plates oppositely arranged and connected on both sides of the column 130, which are respectively a first mounting plate 252 and a second mounting plate 253, and a bearing 254 is connected on the first mounting plate 252, and a spring wheel 255 is connected on the second mounting plate 253; a rotating shaft 256 is inserted on the bearing 254, and one end of the rotating shaft 256 is provided with a friction wheel 257 in contact with the spring wheel 255, wherein the rotating shaft 256 is nested with two stop wheels, which are respectively a first stop wheel 258 and a second stop wheel 259, and the first stop wheel 258 is arranged away from the one end of the rotating shaft 256 where the friction wheel 257 is located, and the second stop wheel 259 is arranged close to the one end of the rotating shaft 256 where the friction wheel 257 is located, and the winding reel 251 is clamped between the first stop wheel 258 and the second stop wheel 259.

[0058] It is worth mentioning that when pulling the output end of the pull rope on the winding reel 251, the winding reel 251, the first stop wheel 258, the second stop wheel 259, the rotating shaft 256 and the friction wheel 257 rotate synchronously, at this time, the elastic wheel and the friction wheel 257 rub against each other, thereby playing a buffering role, so that when the pull rope is pulled to close to the preset cutting length, the winding reel 251 will not continue to rotate due to inertia, thereby avoiding the continuous output of the pull rope to cause the wire to be too long, and further improving the reliability of the length cutting of the pull rope.

[0059] Preferably, the distance shortening structure 210 comprises a vertical post 211 connected on the rack 100, and a threading plate 212 is connected on the side of the vertical post 211 facing the column 130, wherein a plurality of threading holes 2121 are arranged on the threading plate 212, the number of the threading holes 2121 is equal to the number of the winding reels 251, and the plurality of threading holes 2121 are divided into two groups, and the two groups of threading holes 2121 are respectively located on both sides of the threading plate 212, and each group of threading holes 2121 is used for the pull rope output end on the winding reel 251 on the same side of the column 130 to pass through.

[0060] It is worth mentioning that the threading plate 212 can also be arranged on the vertical post 211 away from the column 130, and the difference is only that the relative distance between the threading plate 212 and the column 130 is changed.

[0061] Further preferably, a plurality of optical fiber supports 213 are connected to the threading plate 212, and each optical fiber support 213 is provided with a notch 2131, wherein the positions of the plurality of notches 2131 correspond to the positions of the plurality of threading holes 2121 one by one.

[0062] In the embodiment, by arranging the optical fiber supports 213, it can be monitored in real time whether the pull rope passes through the threading hole 2121, when the notch 2131 corresponding to a certain optical fiber support 213 is not passed through by the pull rope, it indicates that the corresponding winding disc 251 of the threading hole 2121 has no pull rope, at this time, the staff can be notified to replace the corresponding winding disc 251 in time, to ensure the continuous operation of the equipment.

[0063] Preferably, the reversing structure 220 includes a reversing plate 221 connected to the rack 100, and a plurality of reversing holes 2211 are arranged on the reversing plate 221, and a first guide sleeve 222 is embedded in each reversing hole 2211, wherein the plurality of reversing holes 2211 are in the same horizontal plane, and the number of reversing holes 2211 is equal to the number of threading holes 2121.

[0064] In the embodiment, by arranging the reversing structure 220, the two groups of vertically output pull ropes are converted into one group of horizontally output pull ropes, so that when the multiple pull ropes are fused synchronously, the end-to-end adhesion phenomenon between the adjacent two pull ropes is avoided, the convenience of subsequent pull rope threading is improved, and in addition, the first guide sleeve 222 is arranged in the reversing hole 2211 to avoid the friction between the pull rope and the hole wall of the reversing hole 2211 during the dragging process, thereby avoiding the wear of the pull rope surface and reducing the damage of the pull rope during the conveying process.

[0065] Preferably, the guide structure 240 includes a guide plate 241 connected to the rack 100, and a plurality of guide holes 2411 are arranged on the guide plate 241, and a second guide sleeve 242 is embedded in each guide hole 2411, wherein the plurality of guide holes 2411 are in the same horizontal plane, and the positions of the plurality of guide holes 2411 correspond to the positions of the plurality of reversing holes 2211 one by one.

[0066] It is worth mentioning that since the tensioning structure 230 and the wire pressing mechanism 300 have a certain distance, by arranging the guide structure 240, the pull rope is prevented from being laid down due to the too long distance between the tensioning structure 230 and the wire pressing mechanism 300, thereby ensuring that the pull rope is always straight during the conveying process, and further improving the length cutting precision of the pull rope. In addition, the number of guide structures 240 can be increased according to the actual relative distance between the two, to further ensure the straightness of the pull rope during the conveying process.

[0067] In addition, the reversing structure 220 and the guiding structure 240 have the same structure, and thus the reversing structure 220 and the guiding structure 240 can be used interchangeably, that is, the reversing structure 220 can be used as the guiding structure 240, and the guiding structure 240 can be used as the reversing structure 220, thereby reducing the components of the entire fixed-length cutting device for the pull rope, and facilitating management.

[0068] Preferably, the tensioning structure 230 comprises a C-shaped tensioning bracket 231, the closed end of the tensioning bracket 231 is connected to the rack 100, and the two sides of the open end of the tensioning bracket 231 are connected through a guiding shaft 232, the guiding shaft 232 is nested with a plurality of rotating rollers 233 along the axis direction of the guiding shaft 232, each rotating roller 233 is provided with a wire passing groove 2331, and the positions of the plurality of wire passing grooves 2331 correspond to the positions of the plurality of reversing holes 2211 or the positions of the plurality of guiding holes 2411 one by one; a C-shaped wire pressing bracket 234, and the two sides of the open end of the wire pressing bracket 234 are correspondingly rotatably connected to the two sides of the open end of the tensioning bracket 231, the closed end of the wire pressing bracket 234 serves as a wire pressing end, and the angle between the wire pressing bracket 234 and the tensioning bracket 231 after rotation is locked through a fastener.

[0069] It is worth mentioning that when the output ends of the plurality of pull ropes pass through the corresponding reversing holes 2211, pass below the wire pressing end of the wire pressing bracket 234, and respectively pass into the corresponding wire passing grooves 2331, then pass through the guiding holes 2411, the wire pressing channel, and are synchronously clamped by the wire clamping part, at this time, each pull rope is below the wire pressing end, then the wire pressing bracket 234 is rotated to generate pressure on the pull ropes, thereby synchronously tightening the plurality of pull ropes, and then the angle between the wire pressing bracket 234 and the tensioning bracket 231 is locked through the fastener, thereby ensuring that the tensioning forces of each pull rope are the same.

[0070] Preferably, the line pressing mechanism 300 comprises guide posts 310 located on both sides of the line pressing channel, a bottom plate 320, a fixed plate 330, a lifting plate 340 and a top plate 350 arranged in sequence along the axial direction of the guide posts 310, and the bottom plate 320 is connected to the rack 100, both ends of the guide posts 310 are connected to the bottom plate 320 and the top plate 350 respectively, the fixed plate 330 is located between the bottom plate 320 and the top plate 350, and the lifting plate 340 is located between the fixed plate 330 and the top plate 350; a line pressing motor 360 is connected to the top plate 350, and the output end of the line pressing motor 360 penetrates through the top plate 350 and is connected to the lifting plate 340, and the lifting plate 340 is driven by the line pressing motor 360 to move between the top plate 350 and the fixed plate 330 along the axial direction of the guide posts 310, wherein the line pressing part comprises a first line pressing plate 370 connected to the fixed plate 330 and a second line pressing plate 380 connected to the lifting plate 340, and the line pressing channel is formed between the first line pressing plate 370 and the second line pressing plate 380, and the pressing or loosening of the pull rope is realized by the lifting of the lifting plate 340.

[0071] Further preferably, a guide sleeve 390 is further arranged between the lifting plate 340 and the guide post 310, and the guide sleeve 390 is nested with the guide post 310 and connected to the lifting plate 340, wherein the guide sleeve 390 can be lifted synchronously with the lifting plate 340.

[0072] In the embodiment, the guide sleeve 390 is arranged to reduce the friction between the lifting plate 340 and the guide post 310, so that the lifting plate 340 moves more smoothly during lifting.

[0073] It is worth mentioning that the first line pressing plate 370 and the second line pressing plate 380 can be made of flexible material. In addition, in order to further control the distance between the adjacent two pull ropes and avoid the adhesion of the molten end portions of the adjacent two pull ropes after the pull ropes are melted, a plurality of recesses can be arranged on one of the first line pressing plate 370 and the second line pressing plate 380, and a plurality of corresponding protrusions can be arranged on the other of the first line pressing plate 370 and the second line pressing plate 380, wherein the recess is generally a groove, the protrusion is generally a boss, and the depth of the groove is not greater than the thickness of the boss.

[0074] It is further pointed out that the groove can be an arc-shaped groove, and the boss can be an arc-shaped boss.

[0075] In the embodiment, the groove and the boss are arranged to enable the plurality of pull ropes to be correspondingly embedded in the groove, and the depth of the groove is not greater than the thickness of the boss, so that the boss can completely press the pull rope in the corresponding groove, thereby further strictly controlling the relative distance between the adjacent two pull ropes.

[0076] Preferably, the fusing mechanism 400 comprises a cutting motor 410 connected to the top plate 350, and an insulating plate 420 connected to an output end of the cutting motor 410; two pull tubes 430, and one end of the two pull tubes 430 connected to the insulating plate 420, and the other end of the two pull tubes 430 connected through a hot cutter 440.

[0077] In the embodiment, when the pull tube 430 and the hot cutter 440 are both metal conductive materials, one of the two pull tubes 430 is connected to a positive electrode, and the other is connected to a negative electrode, so that the hot cutter 440 is heated after being powered, thereby realizing the cutting of the pull rope; when the pull tube 430 is an insulating material, and the hot cutter 440 is a metal conductive material, one end of the hot cutter 440 is connected to a positive electrode, and the other end is connected to a negative electrode, so that the hot cutter 440 is heated after being powered, thereby realizing the cutting of the pull rope.

[0078] Preferably, the traction mechanism 500 comprises a support column 540 connected to the frame 100, and a support plate 550 horizontally connected to the support column 540, wherein the translation structure 520 is connected to the support plate 550, an output end of the translation structure 520 is connected to a first connecting plate 532, the lifting structure 530 is connected to the first connecting plate 532, an output end of the lifting structure 530 is connected to a second connecting plate 534, the clamping structure 510 is connected to the second connecting plate 534, the clamping structure 510 is located at an output end of the clamping structure 510, and the first connecting plate 532 and the second connecting plate 534 are parallel to each other, and the first connecting plate 532 and the support plate 550 are perpendicular to each other.

[0079] It is worth mentioning that the translation structure 520 comprises a translation cylinder 521, one side of a cylinder body of the translation cylinder 521 connected to the support plate 550, and the other side of the cylinder body slidingly connected to a first sliding plate 522 connected to an output end of the translation cylinder 521; the lifting structure 530 comprises a lifting cylinder 531, one side of a cylinder body of the lifting cylinder 531 connected to the first connecting plate 532, and the other side of the cylinder body slidingly connected to a second sliding plate 533 connected to an output end of the lifting cylinder 531, wherein the second connecting plate 534 is connected to the second sliding plate 533; the clamping structure 510 comprises a clamping cylinder 511, and the clamping part comprises clamping jaws 512 connected to an output end of the clamping cylinder 511, so that the two clamping jaws 512 are moved towards each other or away from each other through the output end of the clamping cylinder 511, thereby realizing the clamping or loosening of the output end of the pull rope.

[0080] Preferably, one sliding rail 140 is arranged on each side of the sliding channel, and a corresponding sliding block 150 is slidably connected to each sliding rail 140, and a sliding seat 160 is connected to each sliding block 150, wherein a wire collecting bin 170 is arranged between the two sliding rails 140; the pulling mechanism 600 comprises a pulling cylinder 610 connected to one of the sliding seats 160, a guide rod 620 connected to an output end of the pulling cylinder 610, and a wire collecting shaft 630 connected to the other sliding seat 160, wherein an axis of the guide rod 620 is arranged in line with an axis of the wire collecting shaft 630, and the guide rod 620 and the wire collecting shaft 630 are spliced to form a pulling wire part.

[0081] It is worth mentioning that when the pulling wire is needed, the guide rod 620 and the wire collecting shaft 630 are connected to form a wire collecting rod, and when the cutting of the pulling wire is completed, the guide rod 620 is retracted by the pulling cylinder 610 to separate the guide rod 620 from the wire collecting shaft 630, so that the pulling wire hung on the wire collecting rod falls into the wire collecting bin 170 below, thereby improving the work efficiency.

[0082] Further preferably, a recess is arranged at an end of the guide rod 620 opposite to the wire collecting shaft 630, and a protrusion is arranged at an end of the wire collecting shaft 630 opposite to the guide rod 620, and the recess and the protrusion are inserted into each other, so that the guide rod 620 and the wire collecting shaft 630 can be seamlessly spliced during the wire collecting, and the pulling wire is prevented from being trapped in the joint between the guide rod 620 and the wire collecting shaft 630, thereby improving the reliability of the wire collecting.

[0083] Further preferably, a flat pushing cylinder 640 is further connected to the sliding seat 160 connected to the pulling cylinder 610, and an output end of the flat pushing cylinder 640 is connected to a pushing block 650, wherein one end of the pushing block 650 is nested with the guide rod 620.

[0084] In the embodiment, the flat pushing cylinder 640 and the pushing block 650 matched therewith are arranged, so that when the guide rod 620 is retracted, the pulling wire hung on the guide rod 620 is pushed into the wire collecting bin 170 below by the pushing block 650, thereby further improving the reliability of the wire collecting.

[0085] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0086] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0087] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A fixed-length cutting device for draw ropes, characterized in that, include: A frame on which multiple winding reels are mounted; The frame is sequentially equipped with a pretreatment mechanism, a wire pressing mechanism with a wire pressing section, a wire cutting mechanism with a wire cutting section, a traction mechanism, and a dragging mechanism with a wire pulling section along the output direction of the pull rope. The pretreatment mechanism includes a spacing reduction structure for reducing the distance between two adjacent pull ropes, a reversing structure for converting multiple vertically arranged pull ropes into a transversely arranged structure in the same horizontal plane, a tensioning structure for synchronously tightening the multiple pull ropes after reversal, and a guide structure for linear conveying of the pull ropes. The spacing reduction structure is connected to a first mounting plane of the frame, and the reversing structure, the tensioning structure, and the guide structure are connected to a second mounting plane of the frame. There is a height difference between the first mounting plane and the second mounting plane. The traction mechanism includes a clamping structure with a wire clamping part, a translational structure for driving the clamping structure to move along the output direction of the pull rope, and a lifting structure for driving the clamping structure to move perpendicular to the output direction of the pull rope. The wire clamping part simultaneously clamps the output ends of multiple pull ropes, and the lifting structure moves the output ends of the pull ropes to a preset height. This preset height causes a vertical height difference to be formed between the output ends of the pull ropes and the pull rope segments on the wire clamping part. The frame is provided with a sliding channel that cooperates with the dragging mechanism, and the pull wire part abuts against the pull rope within the preset height. As the dragging mechanism moves along the sliding channel, the pull rope is pulled to the preset cutting length.

2. The fixed-length cutting device for draw ropes according to claim 1, characterized in that, A column is connected to the first mounting plane, and multiple wire feeding structures are connected to the column. The multiple wire feeding structures are staggered left and right along the length direction of the column, and the output end of the wire feeding structure is provided with the winding reel.

3. The fixed-length cutting device for draw ropes according to claim 2, characterized in that, The wire feeding structure includes two mounting plates arranged opposite each other and connected to both sides of the column, namely a first mounting plate and a second mounting plate. A bearing is connected to the first mounting plate, and a spring wheel is connected to the second mounting plate. A rotating shaft is inserted into the bearing, and one end of the rotating shaft is provided with a friction wheel that contacts the spring wheel. Two stop wheels are nested on the rotating shaft, namely a first stop wheel and a second stop wheel. The first stop wheel is located at the end away from the friction wheel, and the second stop wheel is located at the end closer to the friction wheel. The winding reel is clamped between the first stop wheel and the second stop wheel.

4. The fixed-length cutting device for draw ropes according to claim 2 or 3, characterized in that, The reduced-pitch structure includes a vertical support connected to the frame, and a cable guide plate connected to the vertical support on the side facing the column. The cable guide plate is provided with multiple cable holes; multiple fiber optic brackets, and each fiber optic bracket is provided with a notch. The positions of the multiple notches correspond one-to-one with the positions of the multiple cable holes. The multiple cable holes are divided into two groups, and the two groups of cable holes are located on both sides of the cable guide plate. Each group of cable holes is used for the pull rope output end on the winding reel on the same side of the column to pass through.

5. The fixed-length cutting device for draw ropes according to claim 4, characterized in that, The reversing structure includes a reversing plate connected to the frame, and a plurality of reversing holes are provided on the reversing plate, wherein the plurality of reversing holes are on the same horizontal plane, and the number of reversing holes is equal to the number of wire-passing holes; the guiding structure includes a guide plate connected to the frame, and a plurality of guide holes are provided on the guide plate, wherein the plurality of guide holes are on the same horizontal plane, and the positions of the plurality of guide holes correspond one-to-one with the positions of the plurality of reversing holes.

6. The fixed-length cutting device for draw ropes according to claim 5, characterized in that, The tensioning structure includes a C-shaped tensioning bracket, the closed end of which is connected to the frame. The two sides of the open end of the tensioning bracket are connected by a guide shaft. Multiple rotating rollers are nested along the axial direction of the guide shaft. Each rotating roller is provided with a wire-passing groove, wherein the positions of the multiple wire-passing grooves correspond one-to-one with the positions of multiple reversing holes or multiple guide holes. A C-shaped wire-pressing bracket is also included, with the two sides of the open end of the wire-pressing bracket respectively rotatably connected to the two sides of the open end of the tensioning bracket. The closed end of the wire-pressing bracket serves as the wire-pressing end, and the angle formed between the wire-pressing bracket and the tensioning bracket after rotation is locked by fasteners.

7. The fixed-length cutting device for draw ropes according to claim 1, characterized in that, The pressing mechanism includes guide posts located on both sides of the pressing channel. A base plate, a fixed plate, a lifting plate, and a top plate are sequentially arranged along the axial direction of the guide posts. The base plate is connected to the frame. The two ends of the guide posts are respectively connected to the base plate and the top plate. The fixed plate is located between the base plate and the top plate, and the lifting plate is located between the fixed plate and the top plate. A pressing motor is connected to the top plate, and the output end of the pressing motor passes through the top plate and is connected to the lifting plate. The pressing motor drives the lifting plate to move between the top plate and the fixed plate along the axial direction of the guide posts. The pressing part includes a first pressing plate connected to the fixed plate and a second pressing plate connected to the lifting plate, and a pressing channel is formed between the first pressing plate and the second pressing plate.

8. The fixed-length cutting device for draw ropes according to claim 7, characterized in that, The fusion mechanism includes a cutting motor connected to the top plate, and an insulating plate connected to the output end of the cutting motor; two pull tubes, one end of which is connected to the insulating plate, and the other ends of which are connected via a hot cutting blade. When both the pull tubes and the hot cutting blade are made of conductive metal, one of the pull tubes is connected to the positive terminal and the other to the negative terminal, and the hot cutting blade heats up when energized. When the pull tubes are made of insulating material and the hot cutting blade is made of conductive metal, one end of the hot cutting blade is connected to the positive terminal and the other to the negative terminal, and the hot cutting blade heats up when energized.

9. The fixed-length cutting device for draw ropes according to claim 1, characterized in that, The traction mechanism includes a support column connected to the frame and a support plate horizontally connected to the support column. The translation structure includes a translation cylinder, with one side of the cylinder body connected to the support plate and a first sliding plate slidably connected to the other side of the cylinder body. The first sliding plate is connected to the output end of the translation cylinder. The lifting structure includes a lifting cylinder, with one side of the cylinder body connected to a first connecting plate and a second sliding plate slidably connected to the other side of the cylinder body. The second sliding plate is connected to the output end of the lifting cylinder. The second connecting plate is connected to the second sliding plate. The clamping structure includes a clamping cylinder, and the clamping part includes a jaw connected to the output end of the clamping cylinder. The output end of the clamping cylinder causes the two jaws to move towards each other or in opposite directions.

10. The fixed-length cutting device for draw ropes according to claim 1, characterized in that, A slide rail is provided on each side of the sliding channel, and a corresponding slider is slidably connected to each slide rail. A slide block is connected to each slider. A wire-connecting hopper is provided between the two slide rails. The dragging mechanism includes a dragging cylinder connected to one of the slide blocks, and a guide rod connected to the output end of the dragging cylinder. A wire-connecting shaft is connected to the other slide block. The axis of the guide rod and the axis of the wire-connecting shaft are collinear, and the guide rod and the wire-connecting shaft are spliced ​​to form the wire-pulling part. A flat-push cylinder is also connected to the slide block connected to the dragging cylinder, and a push block is connected to the output end of the flat-push cylinder. One end of the push block is nested with the guide rod.

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