Cutting equipment capable of controlling length of copper wire for construction and cutting method

Abstract

The invention discloses a construction copper wire length-controllable cutting device and a cutting method.The cutting device comprises a table, a straightening roller set, a conveying roller set, a wire puller, a wire cutter and a driver, the straightening roller set and the conveying roller set are correspondingly arranged on the table and located at the front end and the rear end of the table respectively, a limiting sliding groove is formed in the middle of the table, and the wire puller is arranged in the limiting sliding groove; a limiting sliding groove is formed in the table top, the wire puller is arranged in the limiting sliding groove and moves front and back in the limiting sliding groove, the wire cutter is arranged on the rear side of the table top, and the driver is arranged on the bottom face of the table top, connected with the straightening roller set, the conveying roller set and the wire puller and drives the straightening roller set, the conveying roller set and the wire puller to move synchronously. And the wire puller pushes the wire cutter to move backwards to cut wires. The copper wire cutting device can accurately cut a copper wire into a required length according to use requirements, can cut the copper wire into any length, has the characteristics of good applicability and high cutting precision, and meets construction requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of copper wire cutting, and particularly relates to a cutting device and a cutting method for a construction copper wire with controllable length. Background Art

[0002] Copper wire is a commonly used material in construction. However, on the construction site, copper wire is generally placed in coils. When in use, the copper wire is cut into the required length. The simplest way on the construction site is to measure manually and then cut the corresponding copper wire. However, manual operation has the defects of inaccurate cutting length and high labor intensity, and can only be used temporarily. Generally, a cutting device is used for copper wire cutting, which can achieve fast and accurate cutting. However, the lengths of copper wires used on the construction site are different and the specifications are diverse. It is necessary to cut them into different lengths according to needs. The existing cutting devices cannot flexibly adjust the cutting length, and the cutting accuracy is poor. In addition, there are also the disadvantages of complex equipment and high cost, and there are many problems in practical applications. The present invention provides a cutting device and a cutting method for a construction copper wire with controllable length to solve the above problems. Summary of the Invention

[0003] The present invention provides a cutting device and a cutting method for a construction copper wire with controllable length, which can accurately cut the copper wire into the required length according to needs, and has the characteristics of good applicability and high cutting accuracy.

[0004] The technical solution adopted by the present invention to solve the above technical problems is as follows: A cutting device for a construction copper wire with controllable length includes a table, a straightening roller set, a conveying roller set, a wire puller, a wire cutter and a driver. The straightening roller set and the conveying roller set are correspondingly arranged on the table and are respectively located at the front and rear ends of the table. A limiting chute is arranged in the middle of the table. The wire puller is arranged in the limiting chute and moves back and forth in the limiting chute. The wire cutter is arranged at the rear side of the table. The driver is arranged on the bottom surface of the table and is connected with the straightening roller set, the conveying roller set and the wire puller to drive the straightening roller set, the conveying roller set and the wire puller to move synchronously. The wire puller pushes the wire cutter to move backward for wire cutting. The copper wire sequentially passes through the straightening roller set, the wire puller and the conveying roller set and then enters the wire cutter, and is cut by the wire cutter to form a copper wire with a specified length.

[0005] Further, the driver includes a first power device and a power shaft. The power shaft is arranged at the output end of the first power device and is parallelly arranged below the limiting chute. The power shaft is connected with the straightening roller set and the conveying roller set to drive the straightening roller set and the conveying roller set to make rotational movements around their own axes. The power shaft is connected with the wire puller to drive the wire puller to make reciprocating movements on the power shaft.

[0006] Further, both the straightening roller group and the conveying roller group include a set of rotating rollers. The rotating roller includes a one-way rotating component, a rotating shaft, and a pulley. The rotating shaft is vertically arranged on the table through a one-way bearing. The one-way rotating component is arranged at the bottom end of the rotating shaft and meshes with the power shaft. The pulley is arranged at the top end of the rotating shaft. The pulleys of two rotating rollers in each group cooperate with each other to clamp the copper wire tightly.

[0007] Further, the one-way rotating component includes a power wheel, a clamping block, and a clamping spring; An installation hole is arranged in the middle of the power wheel. The bottom end of the rotating shaft is located in the installation hole. A one-way clamping groove is arranged in the installation hole. The one-way clamping groove is symmetrically arranged on the side wall of the installation hole in a central symmetry manner. The one-way clamping groove includes a gradually changing arc surface and a clamping platform. The clamping platform is located at the end of the gradually changing arc surface; A clamping fixed chute is arranged at the bottom of the rotating shaft. The clamping block and the clamping spring are arranged in the clamping fixed chute. The clamping spring is arranged between two clamping blocks. The outer end of the clamping block contacts the one-way clamping groove. An inclined surface is arranged at the outer end of the clamping block. The inclined surface faces away from the clamping platform of the one-way clamping groove. The cooperation between the clamping block and the one-way clamping groove enables the rotating shaft to rotate in one direction.

[0008] Further, the wire puller includes a housing, a wire pulling component, a first reset spring, and a tail cover. The housing is vertically arranged. Its lower part is arranged on the power shaft. The middle part of the housing is located in the limit chute. Its upper part is located above the table. A distance sensor is arranged in the limit chute. A receiver is arranged on the housing. An installation groove is arranged in the upper part of the housing. The installation groove is horizontally arranged. The wire pulling component is movably arranged in the installation groove and moves along the front-back direction. The first reset spring is sleeved on the wire pulling component. The tail cover is detachably arranged at the rear end of the installation groove; The wire pulling component includes a wire pulling block and a limit ball. The front end of the installation groove is a flared opening, and the aperture gradually increases from front to back. The front end of the wire pulling block is frustum-shaped; a groove is arranged at the front end of the wire pulling block. The limit ball is arranged in the groove. A wire pulling hole is arranged at the center of the wire pulling block. The copper wire passes through the wire pulling hole from front to back. When pulling the wire, the limit ball contacts and clamps the copper wire.

[0009] Further, the wire cutter includes a housing, a cutter component, and a reset component. The housing is fixedly arranged at the rear side of the table. The cutter component is movably arranged in the housing. The reset component is arranged in the housing and is connected to the cutter component; the cutter component moves backward under the push of the wire puller and is reset forward through the reset component; The cutter assembly includes a cutter, a push block and a limit block, the reset assembly includes a limit rod and a second reset spring, the limit rod is arranged in the housing, the limit block is arranged on the limit rod and slides along the limit rod, the second reset spring is sleeved on the limit rod and located at the rear side of the limit block, and the cutter assembly is reset forward by pushing the limit block; A wire cutting hole is arranged at the rear end of the shell, and the cutter and the push block are respectively located at the rear and front sides of the limit block. The push block is pushed backward by the wire puller to drive the cutter to cut the copper wire passing through the wire cutting hole.

[0010] Furthermore, a reversing assembly is provided on the rear side of the table, and the reversing assembly is located between the conveying roller group and the wire cutter; the reversing assembly includes a reversing rotating rod, a second power device and a reversing roller, the reversing rotating rod is provided on the rear side of the table and connected to the output end of the second power device, and the reversing roller is provided in the middle part of the reversing rotating rod, and is used to reverse the copper wire and guide it to the wire cutter.

[0011] Furthermore, a rotating drum and a limiting ring are provided on the table. The rotating drum is provided at the front end of the table for placing the copper wire roll. The limiting ring is located between the rotating drum and the straightening roller group for limiting the angle at which the copper wire enters the straightening roller group.

[0012] Furthermore, a worm gear transmission is formed between the straightening roller group and the conveying roller group and the power shaft, and a ball screw transmission is formed between the wire puller and the power shaft.

[0013] A cutting method of a construction copper wire cutting device with controllable length, comprising the following steps: S1, threading: Place the rolled copper wire on the drum, start the control device, and each mechanism automatically resets to the starting point at the front. Lead the copper wire joint from the wire roll, pass the copper wire joint through the limit ring first, and then pass it between the straightening rollers. Then, pass the copper wire into the wire puller and lead it out. After passing between the conveying rollers, it is introduced into the wire cutter through the reversing assembly to complete the threading. S2, wire pulling: start the driver to drive the wire puller to move backward. The wire puller will automatically clamp the copper wire when it moves, and then drive the copper wire to move backward together, pull the copper wire out of the wire coil and transport it backward. At this time, the straightening roller group and the conveying roller group are driven to move synchronously with the wire puller, and the auxiliary wire puller transports the copper wire backward, so that the copper wire remains straight and taut during the transportation process, thereby ensuring the accuracy of the copper wire pulling length; S3, reset: when the wire puller runs to the reset point on the rear side, the driver reverses and drives the wire puller to reset to the starting point. During the reset process, the straightening roller group and the conveying roller group remain stationary and keep the copper wire clamped, while the wire puller releases the clamp on the copper wire, so that the copper wire can pass through the wire puller freely; S4. Repeated wire drawing: Repeat the operations in steps S2 - S3 until the copper wire of the required length is drawn out. S5. Wire cutting: After the copper wire of the required length is drawn out, the wire drawing machine runs to the cutting point, contacts the wire cutting machine, and continues to move backward to push the wire cutting machine to cut off the inserted copper wire, completing the cutting of the copper wire.

[0014] The beneficial effects of the present invention are as follows: The wire drawing machine, the straightening roller set, and the conveying roller set cooperate and can be linked. During wire drawing, the copper wire is conveyed, and when reset, the copper wire is clamped to maintain stability, so that the copper wire remains stable during the cutting process, ensuring the accuracy of the cutting length and eliminating the need for manual re - processing. By controlling the wire drawing machine, it can draw out copper wires of any length, and after cutting, copper wires of the required length can be obtained, which can flexibly meet the construction requirements. Moreover, it can automatically perform wire drawing and cutting, effectively reducing the labor cost, with simpler operation and effectively improving the operation efficiency. The rotating rollers that make up the straightening roller set and the conveying roller set, through cooperation with the one - way bearing, achieve synchronous movement with the wire drawing machine during wire drawing to realize synchronous wire feeding. When the wire drawing machine is reset, the rotating rollers maintain clamping of the copper wire, keeping the copper wire in a taut state, avoiding loosening and retraction of the copper wire, thereby ensuring the accuracy of the drawn - out length of the copper wire and further ensuring the accuracy during copper wire cutting. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection state of the driver of the present invention; Figure 3 It is Figure 2 The enlarged schematic diagram of the structure of part A in Figure 4 It is a schematic cross - sectional view of the rotating roller structure of the present invention; Figure 5 It is a schematic diagram of the connection state of the one - way rotating assembly of the present invention; Figure 6 It is a schematic cross - sectional view of the wire drawing machine structure of the present invention; Figure 7 It is a schematic diagram of the disassembled state of the wire drawing machine of the present invention; Figure 8 It is a schematic diagram of the setting state of the commutation assembly and the wire cutting machine of the present invention; Figure 9 It is a schematic cross - sectional view of the wire cutting machine structure of the present invention; Figure 10 It is a schematic diagram of the running track of the wire drawing machine of the present invention.

[0016] Reference numerals: 1, table; 11, limiting chute; 2, straightening roller set; 21, one-way rotation assembly; 211, driving wheel; 212, clamping block; 213, clamping spring; 214, one-way clamping groove; 22, rotating shaft; 221, clamping chute; 23, pulley; 3, conveying roller set; 4, wire puller; 41, housing; 42, mounting groove; 43, wire pulling assembly; 431, wire pulling block; 432, limiting ball; 44, first return spring; 45, end cap; 5, tangent cutter; 51, outer shell; 511, tangent hole; 52, cutter assembly; 521, cutter; 522, pushing block; 523, limiting block; 53, reset assembly; 531, limiting rod; 532, second return spring; 6, driver; 61, first power device; 62, power shaft; 7, reversing assembly; 71, reversing rod; 72, second power device; 73, reversing roller; 8, rotating cylinder; 9, limiting ring. Detailed implementation mode

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0019] Such as Figure 1 、 2As shown in the figure, a cutting device with controllable copper wire length for construction includes a table 1, a straightening roller group 2, a conveying roller group 3, a wire puller 4, a wire cutter 5 and a driver 6. The table 1 is used to place each component. The straightening roller group 2 and the conveying roller group 3 are arranged front and back corresponding to each other on the table 1, and are respectively located at the front and the rear end of the table 1. A limiting chute 11 facing front and back is provided in the middle of the table 1. The wire puller 4 is arranged in the limiting chute 11 and moves back and forth in the limiting chute 11. When the wire puller 4 moves backward in the limiting chute 11, it is used to pull the copper wire backward for conveying. The wire puller 4 is located between the straightening roller group 2 and the conveying roller group 3. Two groups of straightening roller groups 2 are provided to straighten the copper wire pulled out from the wire coil. The conveying roller group 3 cooperates with the straightening roller group 2 to straighten the copper wire between the two, and tension the copper wire when the wire puller 4 resets. The wire cutter 5 is arranged at the rear side of the table 1 and is used to cut the copper wire. The driver 6 is arranged on the bottom surface of the table 1 as a power device. The driver 6 is connected to the straightening roller group 2, the conveying roller group 3 and the wire puller 4, and drives the straightening roller group 2, the conveying roller group 3 and the wire puller 4 to move synchronously, realizing the linkage of the straightening roller group 2, the conveying roller group 3 and the wire puller 4. During wire cutting, the wire puller 4 pushes the wire cutter 5 to move backward for wire cutting.

[0020] After the copper wire is led out from the rotating cylinder 8 and passes through the limiting ring 9, it passes through the straightening roller group 2, the wire puller 4 and the conveying roller group 3 in sequence and then enters the wire cutter 5. After the pulled-out length meets the requirements, it is cut by the wire cutter 5 to form copper wire of a specified length.

[0021] Such as Figure 1 、 2, as shown in FIGS. 3 and 5, further, the driver 6 includes a first power device 61 and a power shaft 62. The first power device 61 is fixedly installed on the bottom surface of the table 1 and serves as the power source for driving the straightening roller set 2, the conveying roller set 3, and the wire puller 4. The power shaft 62 is provided at the output end of the first power device 61. The power shaft 62 is arranged parallel to the limit sliding groove 11 and is located below the limit sliding groove 11. The power shaft 62 is connected to the straightening roller set 2 and the conveying roller set 3 to drive the straightening roller set 2 and the conveying roller set 3 to rotate around their own axes. The power shaft 62 and the wire puller 4 form a ball screw connection form to drive the wire puller 4 to reciprocate on the power shaft 62. The power shaft 62 drives the straightening roller set 2, the conveying roller set 3, and the wire puller 4 to perform linkage to achieve synchronous movement. In order to ensure that the cut length meets the requirements, during the copper wire drawing process, it is necessary to ensure the stability of the copper wire. When the wire puller 4 is reset, the copper wire needs to be kept taut and cannot be reset together with the wire puller 4. Therefore, when the wire puller 4 is reset, the straightening roller set 2 and the conveying roller set 3 clamp the copper wire to achieve the stability of the copper wire. And because the straightening roller set 2 and the conveying roller set 3 need to move synchronously with the wire puller 4 to cooperate in wire drawing during the wire drawing process, the structure of the power shaft 62 synchronously driving the straightening roller set 2, the conveying roller set 3, and the wire puller 4 is adopted, which reduces the structural complexity and cost, and has a better cooperation effect, and can well ensure the accuracy of the drawn length of the copper wire.

[0022] As Figure 1 , 4 , 5, further, both the straightening roller set 2 and the conveying roller set 3 include a set of rotating rollers. The rotating rollers of the straightening roller set 2 and the conveying roller set 3 can only rotate in one direction, that is, they can only rotate together with the wire puller 4 when the wire puller 4 is pulling the wire. When the wire puller 4 is reset, all the rotating rollers remain stationary. The rotating roller includes a one-way rotating assembly 21, a rotating shaft 22, and a pulley 23. The rotating shaft 22 is vertically arranged on the table 1 through a one-way bearing. The one-way rotating assembly 21 is arranged at the bottom end of the rotating shaft 22 and meshes with the power shaft 62. The pulley 23 is arranged at the top end of the rotating shaft 22. The pulleys 23 of each group of two rotating rollers cooperate with each other to clamp the copper wire. The rotation direction of the one-way bearing is opposite to that of the one-way rotating assembly 21, that is, during the wire pulling process of the wire puller 4, both the straightening roller set 2 and the conveying roller set 3 can rotate. At this time, the one-way bearing rotates, while the one-way rotating assembly 21 is locked with the rotating shaft 22. The one-way rotating assembly 21 is driven by the power shaft 62 and moves together with the rotating shaft 22. During the reset process of the wire puller 4, at this time, the one-way bearing is locked to limit the rotation of the rotating shaft 22, while the one-way rotating assembly 21 idles and does not drive the rotating shaft 22 to rotate. The one-way bearing and the one-way rotating assembly 21 cooperate with each other to limit the rotating shaft 22 to keep it stationary, thereby clamping the copper wire to keep it in a taut state all the time, avoiding the copper wire being reset together with the wire puller 4, and further avoiding the problem that the drawn length cannot be determined.

[0023] AsFigure 4 , 5 As shown in 5 , further, the unidirectional rotation assembly 21 includes a power wheel 211, a clamping block 212, and a clamping spring 213; the power wheel 211 is arranged at the bottom end of the rotating shaft 22, an installation hole is arranged in the middle of the power wheel 211, the bottom end of the rotating shaft 22 is located in the installation hole and rotates in the installation hole, and a unidirectional clamping groove 214 is arranged in the installation hole for restricting the rotating shaft 22 to rotate in only one direction. The unidirectional clamping grooves 214 are symmetrically arranged on the side wall of the installation hole in a central symmetry manner, and a total of three are arranged. The unidirectional clamping groove 214 includes a gradually changing arc surface and a clamping platform, and the clamping platform is located at the tail end of the gradually changing arc surface.

[0024] As Figure 4 , 5 shown in 5 , a through clamping chute 221 is arranged at the bottom of the rotating shaft 22, the clamping blocks 212 and the clamping spring 213 are arranged in the clamping chute 221, a total of two clamping blocks 212 and one clamping spring 213 are arranged, the clamping spring 213 is arranged between the two clamping blocks 212, the two clamping blocks 212 are arranged back to back, the inner ends of the clamping blocks 212 are in contact with the clamping spring 213, and the two clamping blocks 212 have a tendency to move outwards under the push of the clamping spring 213. The outer ends of the clamping blocks 212 extend out of the clamping chute 221 and are in contact with the unidirectional clamping groove 214. The outer ends of the clamping blocks 212 are provided with inclined surfaces, and the inclined surfaces are opposite to the clamping platform of the unidirectional clamping groove 214. The cooperation between the clamping blocks 212 and the unidirectional clamping groove 214 enables the rotating shaft 22 to rotate in one direction.

[0025] Further, a limiting step is arranged in the clamping chute 221, the clamping block 212 is T-shaped, and the clamping block 212 cooperates with the limiting step in the clamping chute 221 to limit the extending length of the clamping block 212 and enable the extending lengths of the two clamping blocks 212 to be kept consistent.

[0026] As Figure 5 shown in Figure 5 , the principle of the unidirectional rotation of the rotating roller is as follows: the clamping blocks 212 arranged in the clamping chute 221 at the bottom of the rotating shaft 22 have a tendency to move outwards under the push of the clamping spring 213, so that the outer ends of the clamping blocks 212 are in contact with the side walls of the unidirectional clamping groove 214; as Figure 5 described, in the forward rotation state of the rotating roller, the outer ends of the clamping blocks 212 are stuck on the clamping platform of the unidirectional clamping groove 214, and the two cannot move relative to each other and can only move together. When the power wheel 211 is driven by the power shaft 62 to rotate forward, that is Figure 5 when the power wheel 211 rotates clockwise in Figure 5 , the power wheel 211 will push the clamping blocks 212 stuck on the clamping platform to move together, thereby driving the rotating shaft 22 to rotate. At this time, the one-way bearing arranged on the rotating shaft 22 is also in a rotating state, and thus the unidirectional rotation of the rotating roller is realized through mutual cooperation; in the reverse idling state of the rotating roller, at this time, when the power wheel 211 moves in the reverse direction, that is Figure 5When the middle power wheel 211 rotates counterclockwise, the rotating shaft 22 is blocked by the one-way bearing and cannot move. Therefore, the latch 212 in the rotating shaft 22 also remains stationary, while the one-way card slot 214 rotates counterclockwise with the power wheel 211, and the latch 212 slides relatively on the tapered arc surface of the one-way card slot 214. At this time, only relative movement occurs between the latch 212 and the power wheel 211, and thus the rotating shaft 22 will not be driven to rotate.

[0027] As Figure 6 、 7 shown, further, the wire puller 4 includes a housing 41, a wire pulling assembly 43, a first return spring 44, and a tail cover 45. The housing 41 is vertically arranged, and its lower part is arranged on the power shaft 62 and is driven by the power shaft 62 to reciprocate back and forth in the limit chute 11. The middle part of the housing 41 is located in the limit chute 11, and its upper part is located above the table 1. The housing 41 is stuck in the limit chute 11 and is restricted by the limit chute 11 to move linearly in the front-back direction. A distance sensor is provided in the limit chute 11, and a receiver is provided on the housing 41. Through the cooperation of the distance sensor and the receiver, the running distance of the wire puller 4 is accurately controlled. An installation groove 42 is provided in the upper part of the housing 41. The installation groove 42 is horizontally arranged in the front-back direction. The wire pulling assembly 43 is movably arranged in the installation groove 42 and moves in the installation groove 42 in the front-back direction. The first return spring 44 is sleeved on the wire pulling assembly 43 to push the wire pulling assembly 43 to have a tendency to move forward. The tail cover 45 is detachably arranged at the rear end of the installation groove 42 by means of threads.

[0028] As Figure 6 、 7As shown, the cable pulling assembly 43 includes a cable pulling block 431 and a limit ball 432. The front end of the installation groove 42 is a flared opening, and the aperture gradually increases from front to back. The front end of the cable pulling block 431 is frustum-shaped. The cable pulling block 431 and the installation groove 42 are coaxial and cooperate with each other. When the cable pulling block 431 is pushed by the first return spring 44 so that the limit ball 432 contacts the installation groove 42, the pressing of the limit ball 432 is achieved, and thus the clamping of the copper wire is realized. The rear end of the cable pulling block 431 is stuck in the end cap 45 and can slide back and forth in the end cap 45. The cable pulling block 431 and the end cap 45 are coaxial, and the axes of both are collinear with the axis of the copper wire. Grooves are provided at intervals at the front end of the cable pulling block 431, with a total of three. The limit ball 432 is movably arranged in the grooves. The cable pulling block 431 is pushed forward by the first return spring 44 so that the limit ball 432 contacts the installation groove 42. Along with the tendency of the cable pulling block 431 to continue moving forward, the limit ball 432 is further pressed inward by the installation groove 42, thereby clamping the copper wire. A horizontal cable pulling hole extending in the front-back direction is provided at the center of the cable pulling block 431. The copper wire passes through the cable pulling hole from front to back. When pulling the cable, the limit ball 432 is squeezed and moves inward, contacts the copper wire and clamps the copper wire.

[0029] As Figure 6 , 7As shown in the figure, the wire pulling principle of the wire puller 4 is as follows: In the free state, after the copper wire passes through the wire pulling block 431, the wire pulling block 431 will move forward under the push of the first return spring 44. The limit ball 432 on the wire pulling block 431 contacts the inner wall of the installation groove 42 and is pressed inward, thereby clamping the copper wire tightly. When the wire puller 4 moves backward in the limit chute 11, the copper wire is integrated with the copper wire on the wire reel and has a tendency to move forward relatively. Driven by the friction force of the copper wire, the wire pulling block 431 also has a tendency to move forward, which further causes the installation groove 42 to squeeze the limit ball 432 more, increasing the pressure on the copper wire, and then tightly clamping the copper wire. Then, the copper wire and the wire puller 4 move backward together. When the wire puller 4 moves forward in the limit chute 11, at this time, the copper wire is clamped by the straightening roller set 2 and the conveying roller set 3 and maintains a tense and stable state, and the copper wire will not move. When the wire puller 4 moves forward, the wire pulling block 431 and the limit ball 432 therein contact the copper wire and will move backward relative to the copper wire under the friction of the copper wire. After the wire pulling block 431 and the limit ball 432 move backward, the limit ball 432 is disengaged from the extrusion of the inner wall of the installation groove 42, and the limit ball 432 is reset outward in the groove of the wire pulling block 431. The limit ball 432 no longer presses and clamps the copper wire. When the wire pulling block 431 moves backward, it will compress the first return spring 44. When the elastic force of the first return spring 44 and the friction force of the copper wire are balanced, at this time, the wire pulling assembly 43 remains stable. At this time, the installation groove 42 does not contact the limit ball 432 and does not apply pressure to it. Similarly, the limit ball 432 does not apply pressure to the copper wire, and thus does not jam the copper wire. Then, the copper wire can smoothly pass through the wire pulling hole of the wire pulling block 431.

[0030] As Figure 8 、 9 shown, further, the wire cutter 5 is arranged at the rear side of the table 1 and is located below the table 1. The wire cutter 5 includes a housing 51, a cutter assembly 52 and a reset assembly 53. The housing 51 is horizontally arranged and fixedly arranged at the rear side of the table 1. The cutter assembly 52 is movably arranged in the housing 51 and is horizontally arranged and can reciprocate back and forth. The reset assembly 53 is arranged in the housing 51 and is connected to the cutter assembly 52. The cutter assembly 52 moves backward under the push of the wire puller 4 and is reset forward through the reset assembly 53.

[0031] As Figure 8 、 9As shown, the cutter assembly 52 is an integral structure, including a cutter 521, a push block 522 and a limit block 523. The reset assembly 53 includes a limit rod 531 and a second reset spring 532. The limit rod 531 is arranged in the housing 51. The limit block 523 is arranged on the limit rod 531 and slides along the limit rod 531. The second reset spring 532 is sleeved on the limit rod 531 and is located at the rear side of the limit block 523. By pushing the limit block 523, the cutter assembly 52 is reset forward.

[0032] As Figure 8 、 9 shown, a tangent hole 511 is provided at the rear end of the housing 51. The cutter 521 and the push block 522 are respectively located at the rear side and the front side of the limit block 523. The push block 522 is pushed backward by the wire puller 4, driving the cutter 521 to cut the copper wire passing through the tangent hole 511.

[0033] As Figure 8 、 9 shown, the tangent principle of the tangent device 5 is as follows: when the tangent device 5 is in a free state, the cutter assembly 52 is pushed by the reset assembly 53 to be in a reset state. At this time, the tangent hole 511 at the rear end of the housing 51 is exposed, and the copper wire passes through the tangent hole 511 and is continuously conveyed; when cutting is required, the wire puller 4 runs to the cutting point at the rearmost side. At this time, the wire puller 4 contacts the cutter assembly 52 and pushes the cutter assembly 52 to move backward. The cutter assembly 52 compresses the second reset spring 532 and continues to move backward. When the cutter 521 moves to the tangent hole 511, the copper wire in the tangent hole 511 is cut. Then the wire puller 4 is reset, and the cutter assembly 52 is pushed forward by the reset assembly 53 to be reset. When the wire puller 4 does not run to the cutting point, the cutter assembly 52 will not move backward and will not cut the copper wire.

[0034] The tangent device 5 works by being driven by the wire puller 4. By setting the running path of the wire puller 4, the cutting of copper wire with a specific length is achieved.

[0035] As Figure 1 、 8 shown, further, a reversing assembly 7 is provided at the rear side of the table 1. The reversing assembly 7 is located between the conveying roller group 3 and the tangent device 5 and is used to reverse the copper wire downward into the tangent device 5. The reversing assembly 7 includes a reversing rotating rod 71, a second power device 72 and a reversing roller 73. The reversing rotating rod 71 is arranged at the rear side of the table 1, perpendicular to the copper wire, and is connected to the output end of the second power device 72. The reversing roller 73 is arranged in the middle of the reversing rotating rod 71 and is used to reverse the copper wire and guide it to the tangent device 5.

[0036] As Figure 1 、 2As shown, further, a rotating drum 8 and a limiting ring 9 are provided on the table 1. The rotating drum 8 is provided at the front end of the table 1 for placing the copper wire roll. The limiting ring 9 is located between the rotating drum 8 and the straightening roller group 2 for limiting the angle at which the copper wire enters the straightening roller group 2.

[0037] Furthermore, a worm gear transmission is formed between the straightening roller group 2 and the conveying roller group 3 and the power shaft 62 , and a ball screw transmission is formed between the wire puller 4 and the power shaft 62 .

[0038] Preferably, two groups of straightening roller groups 2 are provided, and the straightening roller groups 2, wire pullers 4 and conveying roller groups 3 are provided in front and back correspondence.

[0039] A cutting method of a construction copper wire cutting device with controllable length, comprising the following steps: S1, threading: Place the rolled copper wire on the drum 8, start the control device, and each mechanism automatically resets to the starting point at the front. Lead the copper wire joint from the wire roll, pass the copper wire joint through the limit ring 9 first, and then pass it between the straightening roller group 2. Then, the copper wire is passed through the wire puller 4 and then led out. After passing between the conveying roller group 3, it is introduced into the wire cutter 5 through the reversing component 7 to complete the threading. S2, wire pulling: start the driver 6 to drive the wire puller 4 to move backward. The wire puller 4 will automatically clamp the copper wire when it moves, and then drive the copper wire to move backward together, pull the copper wire out of the wire roll and convey it backward. At this time, the straightening roller group 2 and the conveying roller group 3 are driven to move synchronously with the wire puller 4, and the auxiliary wire puller 4 conveys the copper wire backward, so that the copper wire remains straight and taut during the conveying process, thereby ensuring the accuracy of the copper wire pulling length; S3, reset: when the wire puller 4 runs to the reset point on the rear side, the driver 6 reverses and drives the wire puller 4 to reset to the starting point. During the reset process, the straightening roller group 2 and the conveying roller group 3 remain stationary and keep the copper wire clamped, while the wire puller 4 releases the clamp on the copper wire, so that the copper wire can freely pass through the wire puller 4; S4, repeat wire pulling: repeat the operations of steps S2-S3 until the copper wire of the required length is pulled out; S5, wire cutting: after pulling out the copper wire of the required length, the wire puller 4 moves to the cutting point, contacts the wire cutter 5, and continues to move backward, pushing the wire cutter 5 to cut off the inserted copper wire, thus completing the cutting of the copper wire.

[0040] like Figure 10As shown, further, during the operation process, the wire puller 4 is provided with multiple action points, including a starting point, a reset point, a compensation reset point, and a cutting point; the starting point is located in the front and serves as the starting point of the wire puller 4, the reset point is located in the rear and serves as the round-trip point in a complete reciprocating stroke of the wire puller 4, the compensation reset point is located in the rear and is between the starting point and the reset point. When cutting copper wires of non-integer lengths, according to the specific cutting length, the wire puller 4 will run a stroke between the starting point and the compensation reset point so that the entire running length meets the requirements. Since X1 is random, the value of the compensation reset point is also random. Therefore, the compensation reset point is determined by a distance sensor. The cutting point is located at the rearmost position. When the wire puller 4 runs to the cutting point, it pushes the wire cutter 5 to cut the copper wire.

[0041] The specific embodiment of the cutting method of the present invention is as follows. The wire pulling distance of the wire puller 4 is n = X1 + (n - 1)X2 + X3, where n is the length of the copper wire to be cut, X1 is a non-integer within 1 meter, that is, the length between the starting point and the compensation reset point, which is a non-fixed value and can be flexibly changed according to needs, X2 is 1 meter, that is, the length between the starting point and the reset point, which is a fixed value, and X3 is 1.2 meters, that is, the length between the starting point and the cutting point, which is a fixed value. X3 - X2 is a part of the distance reserved for subsequent construction during each cutting.

[0042] After the first manual wire threading, the wire puller 4 will automatically perform a wire pulling and cutting operation to tighten and cut the copper wire, making the copper wire on the device in a tightened state. At this time, the length of the copper wire is determined. Therefore, during subsequent cutting processes, the length of the copper wire is a determined value and no further adjustment is required.

[0043] When the cutting length of the copper wire is an integer, at this time X1 is zero, and the wire pulling distance of the wire puller 4 is n = (n - 1)X2 + X3. The single wire pulling stroke of the wire puller 4 is X2. The wire puller 4 needs to reciprocate (n - 1) times between the starting point and the reset point. At this time, the wire pulling length is (n - 1)X2. In the last stroke, the wire puller 4 runs to the cutting point, and the wire pulling stroke is X3. The total wire pulling length is (n - 1)X2 + X3, and the length of the cut copper wire meets the requirements.

[0044] When the cutting length of the copper wire is not an integer, at this time X1 is not zero, and the wire pulling distance of the wire puller 4 is n = X1 + (n - 1)X2 + X3. The wire puller 4 resets after running to the compensation reset point in the first stroke, and the wire pulling length is X1. Starting from the second stroke, the wire puller 4 runs to the reset point and resets each time, for a total of (n - 1) times, and the wire pulling length is (n - 1)X2. In the last stroke, the wire puller 4 runs to the cutting point, and the wire pulling stroke is X3, and the wire pulling length is X3. The total wire pulling length is X1 + (n - 1)X2 + X3, and the length of the cut copper wire meets the requirements.

[0045] If the cutting length of the copper wire is 5.8 m, during specific operation, under the control of the distance sensor, the wire puller 4 runs to the compensation reset point 0.8 m away from the starting point for the first time. At this time, the wire pulling length is 0.8 m. Starting from the second time, the wire puller 4 runs to the reset point each time, and it runs 4 times in total. At this time, the total wire pulling length is 4.8 m. Finally, the wire puller 4 runs to the cutting point, and the single wire pulling length is 1.2 m. The total wire pulling length is 6 m. Subtracting the reserved length of 0.2 m, the total wire pulling length is 5.8 m, meeting the requirements.

[0046] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A construction copper wire cutting device with controllable length, characterized by: The invention comprises a table (1), a straightening roller group (2), a conveying roller group (3), a wire puller (4), a wire cutter (5) and a driver (6), wherein the straightening roller group (2) and the conveying roller group (3) are arranged on the table (1) correspondingly and are respectively located at the front and rear ends of the table (1), a limiting slide groove (11) is provided in the middle of the table (1), the wire puller (4) is arranged in the limiting slide groove (11) and moves forward and backward in the limiting slide groove (11), the wire cutter (5) is arranged on the rear side of the table (1), and the driver (6) is arranged on the bottom surface of the table (1) and is connected with the straightening roller group (2), the conveying roller group (3) and the wire puller (4), so as to drive the straightening roller group (2), the conveying roller group (3) and the wire puller (4) to move synchronously, and the wire puller (4) pushes the wire cutter (5) to move backward to cut the wire; The copper wire passes through the straightening roller group (2), the wire puller (4) and the conveying roller group (3) in sequence and then enters the wire cutter (5), where it is cut by the wire cutter (5) to form a copper wire of a specified length.

2. The construction copper wire length controllable cutting device according to claim 1, characterized in that: The driver (6) comprises a first power device (61) and a power shaft (62). The power shaft (62) is arranged on the output end of the first power device (61) and is arranged in parallel below the limiting slide groove (11). The power shaft (62) is connected to the straightening roller group (2) and the conveying roller group (3) to drive the straightening roller group (2) and the conveying roller group (3) to rotate around their own axes. The power shaft (62) is connected to the wire puller (4) to drive the wire puller (4) to reciprocate on the power shaft (62).

3. The construction copper wire length controllable cutting device according to claim 2, characterized in that: The straightening roller group (2) and the conveying roller group (3) both include rotating rollers arranged in groups, the rotating rollers including a one-way rotating component (21), a rotating shaft (22) and a pulley (23), the rotating shaft (22) being vertically arranged on the table (1) via a one-way bearing, the one-way rotating component (21) being arranged at the bottom end of the rotating shaft (22) and meshing with the power shaft (62), the pulley (23) being arranged at the top end of the rotating shaft (22), and the pulleys (23) of each group of two rotating rollers cooperate with each other to clamp the copper wire.

4. The construction copper wire length controllable cutting device according to claim 3 is characterized by: The one-way rotating assembly (21) comprises a power wheel (211), a clamping block (212) and a clamping spring (213); A mounting hole is provided in the middle of the power wheel (211), the bottom end of the rotating shaft (22) is located in the mounting hole, a one-way clamping slot (214) is provided in the mounting hole, the one-way clamping slot (214) is centrally symmetrically arranged on the side wall of the mounting hole, the one-way clamping slot (214) comprises a gradually changing arc surface and a clamping platform, and the clamping platform is located at the rear end of the gradually changing arc surface; A locking slide groove (221) is provided at the bottom of the rotating shaft (22); the locking block (212) and the locking spring (213) are arranged in the locking slide groove (221); the locking spring (213) is arranged between the two locking blocks (212); the outer end of the locking block (212) contacts the one-way locking groove (214); the outer end of the locking block (212) is provided with an inclined surface, the inclined surface is opposite to the locking platform of the one-way locking groove (214); the locking block (212) cooperates with the one-way locking groove (214) to enable the rotating shaft (22) to rotate in one direction.

5. The construction copper wire length controllable cutting device according to claim 2 is characterized by: The wire puller (4) comprises a shell (41), a wire pulling assembly (43), a first return spring (44) and a tail cover (45); the shell (41) is arranged vertically, and its lower part is arranged on the power shaft (62); the middle part of the shell (41) is located in the limiting slide groove (11), and its upper part is located above the table (1); a distance sensor is arranged in the limiting slide groove (11); a receiver is arranged on the shell (41); a mounting groove (42) is arranged in the upper part of the shell (41); the mounting groove (42) is arranged horizontally; the wire pulling assembly (43) is movably arranged in the mounting groove (42) and moves in the front-rear direction; the first return spring (44) is sleeved on the wire pulling assembly (43); and the tail cover (45) is detachably arranged at the rear end of the mounting groove (42); The wire pulling assembly (43) comprises a wire pulling block (431) and a limiting ball (432); the front end of the installation slot (42) is a bell mouth, the aperture of which gradually increases from front to back; the front end of the wire pulling block (431) is a frustum; the front end of the wire pulling block (431) is provided with a groove, the limiting ball (432) is arranged in the groove, the center of the wire pulling block (431) is provided with a wire pulling hole, the copper wire passes through the wire pulling hole from front to back, and when the wire is pulled, the limiting ball (432) contacts and clamps the copper wire.

6. The construction copper wire length controllable cutting device according to claim 1 is characterized by: The wire cutter (5) comprises a housing (51), a cutter assembly (52) and a reset assembly (53); the housing (51) is fixedly arranged on the rear side of the table (1); the cutter assembly (52) is movably arranged in the housing (51); the reset assembly (53) is arranged in the housing (51) and is connected to the cutter assembly (52); the cutter assembly (52) moves backwards under the push of the wire puller (4) and is reset forwards by the reset assembly (53); The cutter assembly (52) comprises a cutter (521), a push block (522) and a limit block (523); the reset assembly (53) comprises a limit rod (531) and a second reset spring (532); the limit rod (531) is arranged in the housing (51); the limit block (523) is arranged on the limit rod (531) and slides along the limit rod (531); the second reset spring (532) is sleeved on the limit rod (531) and is located at the rear side of the limit block (523); and the cutter assembly (52) is reset forward by pushing the limit block (523); A wire cutting hole (511) is provided at the rear end of the housing (51), and the cutter (521) and the push block (522) are respectively located at the rear and front sides of the limit block (523), and the push block (522) is pushed backward by the wire puller (4), driving the cutter (521) to cut the copper wire passing through the wire cutting hole (511).

7. The construction copper wire length controllable cutting device according to claim 1 is characterized by: A reversing assembly (7) is provided on the rear side of the table (1), and the reversing assembly (7) is located between the conveying roller group (3) and the wire cutter (5); the reversing assembly (7) comprises a reversing rotating rod (71), a second power device (72) and a reversing roller (73); the reversing rotating rod (71) is provided on the rear side of the table (1) and is connected to the output end of the second power device (72); the reversing roller (73) is provided in the middle of the reversing rotating rod (71) and is used to reverse the direction of the copper wire and guide it to the wire cutter (5).

8. The construction copper wire length controllable cutting device according to claim 1 is characterized by: The table (1) is provided with a rotating drum (8) and a limiting ring (9); the rotating drum (8) is arranged at the front end of the table (1) and is used to place the copper wire roll; the limiting ring (9) is located between the rotating drum (8) and the straightening roller group (2) and is used to limit the angle at which the copper wire enters the straightening roller group (2).

9. The construction copper wire length controllable cutting device according to claim 2, characterized in that: A worm gear transmission is formed between the straightening roller group (2) and the conveying roller group (3) and the power shaft (62), and a ball screw transmission is formed between the wire puller (4) and the power shaft (62).

10. A cutting method for a construction copper wire with a controllable length cutting device, characterized in that: The following steps are included: S1, threading: placing the rolled copper wire on the rotating drum (8), starting the control device, and automatically resetting each mechanism to the starting point at the front. The copper wire joint is led out from the wire roll, and the copper wire joint is first passed through the limit ring (9), and then passed between the straightening roller group (2). The copper wire is then passed through the wire puller (4) and then led out. After passing between the conveying roller group (3), the copper wire is introduced into the wire cutter (5) through the reversing component (7), and the threading is completed. S2, wire pulling: start the driver (6) to drive the wire puller (4) to move backward. The wire puller (4) will automatically clamp the copper wire when it moves, thereby driving the copper wire to move backward together, pulling the copper wire out of the wire coil and conveying it backward. At this time, the straightening roller group (2) and the conveying roller group (3) are driven to move synchronously with the wire puller (4), assisting the wire puller (4) to convey the copper wire backward, so that the copper wire remains straight and taut during the conveying process, thereby ensuring the accuracy of the copper wire pulling length; S3, reset: when the wire puller (4) runs to the reset point on the rear side, the driver (6) reverses and drives the wire puller (4) to reset to the starting point. During the reset process, the straightening roller group (2) and the conveying roller group (3) remain stationary and keep the copper wire tightly clamped, while the wire puller (4) releases the clamping of the copper wire, so that the copper wire can freely pass through the wire puller (4); S4, repeat wire pulling: repeat the operations of steps S2-S3 until the copper wire of the required length is pulled out; S5, wire cutting: After pulling out the copper wire of the required length, the wire puller (4) moves to the cutting point, contacts the wire cutter (5), and continues to move backward, pushing the wire cutter (5) to cut off the inserted copper wire, thus completing the cutting of the copper wire.

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