Power wire straightening machine

Abstract

The invention discloses an electric wire straightening machine, which relates to the technical field of wire straightening machines. The invention comprises a base, on which a first straightening wheel group and a second straightening wheel group perpendicular to each other are arranged, and a traction mechanism arranged on the base, wherein the traction mechanism comprises a driving component and a plurality of traction wheel groups, each traction wheel group is slidably connected to the base along a guide path, and the guide path comprises connected straight segments and arc segments. When a curved wire to be straightened is inserted into each traction wheel group in the arc segment, the driving component drives each traction wheel group to slide and switch from the arc segment to the straight segment to pre-straighten the wire. The traction component can effectively solve the problem that the starting segment of the wire is difficult to be inserted into the straightening wheel group, so as to avoid the situation that it is difficult to straighten or damage the wire by human power, and to facilitate the construction of the workers without cooperating with other devices to straighten the wire.

Description

Technical Field

[0001] The invention relates to the technical field of electric wire straighteners, in particular to an electric power wire straightener. Background Art

[0002] When laying wires in cable trays and cable ducts, the wires are required to be as straight as possible. Bent wires will take up more space and easily rub against the inner walls of the cable trays and cable ducts. They may also cause the wires to become entangled and piled up, affecting the appearance and hindering subsequent line inspection and maintenance. Therefore, power wires need to be straightened before use.

[0003] After the electric wires that meet the construction requirements are produced, they usually need to be wound on reels. Then workers transport the reels with the electric wires to designated construction sites. Before using the electric wires for construction, workers need to straighten the electric wires wound on the reels. Patents such as announcement numbers CN220560313U, CN215431300U, and CN208321935U can all achieve straightening of the electric wires wound on the reels. However, the starting section of the electric wire wound on the reel that needs to be straightened also has a bend. For some power wires with greater strength and wound on reels, the starting section is difficult to insert into the wire straightening machine. First, if the starting section of the electric wire wound on the reel is difficult to straighten by controlling manpower or the electric wire is damaged. Second, if the starting section of the electric wire wound on the reel is straightened by other equipment, the convenience of such construction needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a power wire straightener to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric wire straightening machine, comprising a base, on which a first straightening wheel group and a second straightening wheel group perpendicular to each other are arranged, and also comprising a traction mechanism arranged on the base, the traction mechanism comprising a driving assembly and a plurality of traction wheel groups, each traction wheel group being slidably connected to the base along a guide path, the guide path comprising connected straight segments and arc segments, when a curved electric wire to be straightened passes into each traction wheel group in the arc segment, the driving assembly drives each traction wheel group to slide and switch from the arc segment to the straight segment to pre-straighten the electric wire.

[0006] Furthermore, the driving assembly includes a hydraulic cylinder, a slide groove, a guide plate, an extension rod and a plurality of transmission units arranged in a one-to-one correspondence with the traction wheel groups, the slide groove is opened on the base along the guide path, the length direction of the guide plate extends along the guide path, and the extension rod is fixedly connected to the piston rod of the hydraulic cylinder; each transmission unit includes: a support column, which is slidably connected to the base along the slide groove, and the top of which is connected to the corresponding traction wheel group; a telescopic rod, one end of which is fixedly connected to the extension rod, and the other end is rotatably connected to the corresponding support column through a sleeve; a guide groove, which is opened on the guide plate along the length direction of the guide plate, and the support column is provided with a sliding rod slidably connected to the guide groove.

[0007] Furthermore, a support plate is fixedly connected to the support column, and the traction wheel group includes a first guide wheel and a second guide wheel arranged on the corresponding support plate. The first guide wheel or the second guide wheel of at least one traction wheel group is a driving wheel driven to rotate by a motor.

[0008] Furthermore, the first guide wheel and the second guide wheel are both rotatably connected to the corresponding support plates, and the sliding rod is fixedly connected to the support column.

[0009] Furthermore, the first guide wheel is rotatably connected to the support plate, a slider is slidably connected to the support plate, and the second guide wheel is rotatably connected to the slider; each transmission unit also includes a linkage assembly, the linkage assembly includes a sliding sleeve, a hinged rod and an inclined groove, the sliding sleeve is slidably connected to the corresponding support column, one end of the hinged rod is hinged to the sliding sleeve, and the other end is hinged to the corresponding slider, the inclined groove is connected to the straight end of the corresponding guide groove; the sliding rod is slidably connected to the support column through the sliding sleeve, and the sliding rod can slidably cooperate with the inclined groove.

[0010] Furthermore, it also includes a plurality of guide wheel groups, each of which is horizontally slidably connected to the base, and a connecting rod is provided between each guide wheel group and the extension rod.

[0011] In the above technical solution, the present invention provides a power wire straightening machine. Before the wire is straightened, the driving assembly drives each traction wheel group to be in the arc section of the guide path, so that each traction wheel group is adapted to the bend of the wire to be straightened, and the bent wire to be straightened is inserted into each traction wheel group in the arc section. The driving assembly drives each traction wheel group to slide and switch from the arc section to the straight section. In this process, the traction wheel group pulls the wire that has entered the traction wheel group to straighten this section of the wire;

[0012] The traction assembly can effectively solve the problem that the starting section of the wire is difficult to insert into the straightening wheel group. Firstly, it avoids the situation that the wire is difficult to straighten or damaged by manpower. Secondly, there is no need to cooperate with other devices to straighten the wire, which facilitates the construction of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure of the device provided by an embodiment of the present invention;

[0015] Figure 2 A schematic diagram of the structure of each traction wheel group provided in an embodiment of the present invention being in a straight section of a slideway;

[0016] Figure 3 The embodiment of the present invention provides Figure 2 The enlarged structural diagram at A in the middle;

[0017] Figure 4 A schematic diagram of a partial structure of a device provided in an embodiment of the present invention;

[0018] Figure 5 The embodiment of the present invention provides Figure 4 The enlarged structural diagram at B in the middle;

[0019] Figure 6 A schematic diagram of the structure of each traction wheel group provided in an embodiment of the present invention in an arc section of a slide groove;

[0020] Figure 7 The embodiment of the present invention provides Figure 6 The enlarged structural diagram at C in the middle;

[0021] Figure 8 A schematic diagram of the structure of a device for pulling electric wires provided in an embodiment of the present invention.

[0022] Description of reference numerals:

[0023] 1. Base; 11. First straightening wheel group; 12. Second straightening wheel group; 13. Hydraulic cylinder; 14. Slide groove; 15. Guide wheel group; 2. Traction wheel group; 21. First guide wheel; 22. Second guide wheel; 221. Sliding block; 3. Guide plate; 4. Transmission unit; 41. Support column; 411. Support plate; 42. Extension rod; 43. Telescopic rod; 44. Guide groove; 45. Sliding rod; 5. Linkage assembly; 51. Sliding sleeve; 52. Articulated rod; 53. Inclined groove; 6. Connecting rod. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] See also Figure 1-8 An embodiment of the present invention provides an electric wire straightening machine, comprising a base 1, on which a first straightening wheel group 11 and a second straightening wheel group 12 perpendicular to each other are arranged, and also comprises a traction mechanism arranged on the base 1, the traction mechanism comprises a driving assembly and a plurality of traction wheel groups 2, each traction wheel group 2 is slidably connected to the base 1 along a guide path, the guide path comprises connected straight segments and arc segments, when the bent wire to be straightened passes into each traction wheel group 2 in the arc segment, the driving assembly drives each traction wheel group 2 to slide and switch from the arc segment to the straight segment to pre-straighten the wire; the driving assembly comprises a hydraulic cylinder 13, a slide 14, a guide plate 3, an extension rod 42 and a plurality of transmission units 4 arranged one by one corresponding to the traction wheel groups 2, the slide 14 is opened on the base 1 along the guide path, and the length direction of the guide plate 3 is along the guide path. The extension rod 42 extends toward the path, and the extension rod 42 is fixedly connected to the piston rod of the hydraulic cylinder 13; each transmission unit 4 includes a support column 41, a telescopic rod 43 and a guide groove 44, the support column 41 is slidably connected to the base 1 along the slide groove 14, and the top of the support column 41 is connected to the corresponding traction wheel group 2; one end of the telescopic rod 43 is fixedly connected to the extension rod 42, and the other end is rotatably connected to the corresponding support column 41 through a sleeve; the guide groove 44 is opened on the guide plate 3 along the length direction of the guide plate 3, and a sliding rod 45 slidably connected to the guide groove 44 is provided on the support column 41, and a support plate 411 is fixedly connected to the support column 41, and the traction wheel group 2 includes a first guide wheel 21 and a second guide wheel 22 arranged on the corresponding support plate 411, and the first guide wheel 21 or the second guide wheel 22 of at least one traction wheel group 2 is a driving wheel that is rotated by a motor.

[0026] When the wire wound on the reel has not yet been inserted into each traction wheel group 2, the hydraulic cylinder 13 is started so that the piston rod of the hydraulic cylinder 13 drives the extension rod 42 to move horizontally. During the movement of the extension rod 42, the extension rod 42 will drive each transmission component to move. The traction wheel group 2 that initially contacts the wire is the first traction wheel group 2. Taking the transmission component arranged on the first traction wheel group 2 as an example, the extension rod 42 drives the telescopic rod 43 to move. During the movement of the telescopic rod 43, the inner rod of the telescopic rod 43 extends and the inner rod pulls the sleeve to move. During the movement of the sleeve, since the support column 41 needs to slide along the arc segment path of the slide groove 14, the support column 41 will also rotate relative to the sleeve when being pushed to move along the slide groove 14 (here The sliding cooperation between the slide bar 45 on the support column 41 and the guide groove 44 makes the support column 41 rotate relative to the sleeve, thereby avoiding the support column 41 not rotating relative to the sleeve and thus failing to make the traction wheel group 2 adapt to the curvature of the starting section of the wire, that is, avoiding the situation that each traction wheel group 2 is in a stepped shape). When each traction wheel group 2 is arranged in an arc, the starting section of the wire is inserted between the first guide wheel 21 and the second guide wheel 22 of the first guide wheel 21 group, and the first guide wheel 21 is driven to rotate by a motor (not shown in the figure, this is the prior art and will not be described in detail here). The rotation of the first guide wheel 21 will cause the wire to enter the subsequent traction wheel group 2 in sequence until the wire passes between the first guide wheel 21 and the second guide wheel 22 of the last traction wheel group 2 (the wire passes from the last traction wheel group 2 The length between the first traction wheel group 2 and the first traction wheel group 2 is the starting section of the wire), the motor is stopped, and then the hydraulic cylinder 13 is started again to reset the piston rod of the hydraulic cylinder 13 into the cylinder body. During the piston rod resetting process, the extension rod 42 drives the telescopic rod 43 to move. During the telescopic rod 43 pulling the sleeve to move, the support column 41 rotates relative to the sleeve, and each traction wheel group 2 pulls the starting section of the wire, so that each traction wheel group 2 straightens the starting section of the wire during the retreat (that is, each traction wheel group 2 moves from the arc section of the slide groove 14 to the straight section). When each traction wheel group 2 is in the straight section, the movement of the piston of the hydraulic cylinder 13 is stopped, and then the motor is started again. The motor drives the first guide wheel 21 to rotate, so that the wire continues to move, and the wire The starting section will successively enter the first straightening wheel group 11 and the second straightening wheel group 12 (the first straightening wheel group 11 and the second straightening wheel group 12 are perpendicular to each other). As the motor operates, the wire after the starting section will successively pass through each traction wheel group 2 to the first straightening wheel group 11 and then to the second straightening wheel group 12. Through the cooperation of each wheel group, the wire after the starting section is straightened to complete the straightening work. It is worth mentioning that there will be each traction wheel group 2 sliding from an arc segment to a straight segment. After the wire passes through each traction wheel group 2, each traction wheel group 2 realizes the straightening effect on the wire instead of continuing to pull the wire. Through the coordinated action of the first straightening wheel group 11 and the second straightening wheel group 12 and each traction wheel group 2, the straightening of the wire is more thorough.

[0027] Among them, in the process of sliding and switching each traction wheel group 2 from the arc segment to the straight segment, the starting segment of the wire may be in contact with the wheel group in many places and not completely straightened. Thereafter, the first straightening wheel group 11 and the second straightening wheel group 12 play a role in further straightening the starting segment; in addition, a situation may occur, for example, when each traction wheel group 2 is in the arc of the guide path, the length of the wire inserted into each traction wheel group 2 is one meter, and after each traction wheel group 2 moves from the arc segment of the guide path to the straight segment, the gap between each traction wheel group 2 is reduced, and the length of the wire in each traction wheel group 2 is only 0.5 meters. Although the wire entering each traction wheel group 2 has retreated relative to (each traction wheel group 2), a part of the wire has still been pre-straightened, that is, the motor of the first guide wheel 21 can be started later so that each traction wheel group 2 drives the wire to continue to enter the next wheel group for straightening. It is worth mentioning that only a part of the starting segment of the wire (that is, the wire passes through two to three traction wheel groups 2) needs to be pre-straightened. After each traction wheel group 2 slides from the arc segment to the straight segment, the staff can move the reel of the wound wire by a mechanical arm (this is the prior art) so that the reel is in a better angle position for releasing the wire and entering each traction wheel group 2. In addition, another traction wheel group 2 can be set in front of each traction wheel group 2 (the position where the wire initially passes through), and the first guide wheel 21 of this traction wheel group 2 is a driving wheel controlled by a motor, and a screw is rotatably connected to the support plate 411, and the screw is screwed to the slider 221 on the second guide wheel 22, and the distance between the first guide wheel 21 and the second guide wheel 22 is controlled by the screw, that is, when each traction wheel group 2 slides from the arc segment to the straight segment, this traction wheel group 2 provides a larger clamping force to pre-straighten the starting section of the wire.

[0028] Compared with the prior art, the present invention provides a power wire straightening machine. Before the wire is straightened, the driving assembly drives each traction wheel group 2 to be in the arc section of the guide path, so that each traction wheel group 2 is adapted to the bend of the wire to be straightened, and the bent wire to be straightened is inserted into each traction wheel group 2 in the arc section, and the driving assembly drives each traction wheel group 2 to slide and switch from the arc section to the straight section. In this process, the traction wheel group 2 pulls the wire that has entered the traction wheel group 2 to straighten this section of the wire;

[0029] The traction assembly can effectively solve the problem that the starting section of the wire is difficult to insert into the straightening wheel group. Firstly, it avoids the situation that the wire is difficult to straighten or damaged by manpower. Secondly, there is no need to cooperate with other devices to straighten the wire, which facilitates the construction of workers.

[0030] As one of the technical solutions of the present invention, the first guide wheel 21 and the second guide wheel 22 are both rotatably connected to the corresponding support plate 411, and the sliding rod 45 is fixedly connected to the support column 41. Taking the first group of traction wheel groups 2 as an example, the motor drives the first guide wheel 21 to rotate, and the first guide wheel 21 drives the electric wire entering between the first guide wheel 21 and the second guide wheel 22 to move during the rotation process, and the electric wire drives the second guide wheel 22 of the first group of traction wheel groups 2 to rotate during the movement, and the first guide wheel 21 and the second guide wheel 22 in the traction wheel group 2 behind the first traction wheel group 2 are driven to rotate by the moving electric wire.

[0031] As another technical solution of the present invention, the first guide wheel 21 is rotatably connected to the support plate 411, the support plate 411 is slidably connected with a slider 221, and the second guide wheel 22 is rotatably connected to the slider 221; each transmission unit 4 also includes a linkage assembly 5, the linkage assembly 5 includes a sliding sleeve 51, a hinge rod 52 and an inclined groove 53, the sliding sleeve 51 is slidably connected to the corresponding support column 41, one end of the hinge rod 52 is hinged to the sliding sleeve 51, and the other end is hinged to the corresponding slider 221, and the inclined groove 53 is connected to the straight end of the corresponding guide groove 44 (here, each inclined groove 53 is parallel to each other); the sliding rod 45 The slide rod 45 is slidably connected to the support column 41 through the slide sleeve 51, and the slide rod 45 can slide and cooperate with the inclined groove 53; taking one of the traction wheel groups 2 as an example, when the piston rod of the hydraulic cylinder 13 pushes the extension rod 42 to move away from the cylinder body of the hydraulic cylinder 13, the movement of the extension rod 42 drives the sleeve to move through the telescopic rod 43, and the movement of the sleeve will drive the support column 41 to move. During the movement of the support column 41, since the slide rod 45 slides along the inclined groove 53, the slide rod 45 will drive the sleeve 51 to slide vertically relative to the support column 41, and the sliding of the sleeve 51 will drive the hinged rod 5 The slider 221 abuts against the support plate 411, so that the slider 221 slides relative to the support plate 411. The sliding of the slider 221 changes the distance between the first guide wheel 21 and the second guide wheel 22. After the slide bar 45 finishes sliding in the inclined groove 53, the slide bar 45 enters the guide groove 44. During this process, although the support column 41 and the slide bar 45 continue to move, the distance between the first guide wheel 21 and the second guide wheel 22 does not change, and the wire can be inserted between the first guide wheel 21 and the second guide wheel 22 relatively easily. In addition, during the retreat of each traction wheel group 2, the extension rod 42 is driven by the piston rod to move into the guide groove 44. The extension rod 42 moves toward the cylinder body, and then the slide rod 45 moves along the direction of the inclined groove 53 to the lower part of the inclined groove 53, and then the slide rod 45 drives the sliding sleeve 51 to move. The vertical downward movement of the sliding sleeve 51 will cause the hinge rod 52 to pull the slider 221, and then the distance between the first guide wheel 21 and the second guide wheel 22 will be reduced. Long-term use causes the first guide wheel 21 and the second guide wheel 22 to wear, and then the distance between the first guide wheel 21 and the second guide wheel 22 increases. The distance between the first guide wheel 21 and the second guide wheel 22 can be reduced by moving the linkage assembly 5, which is convenient for the worker's work.

[0032] It also includes a plurality of guide wheel groups 15, each guide wheel group 15 is horizontally slidably connected to the base 1, a connecting rod 6 is arranged between each guide wheel group 15 and the extension rod 42, each guide wheel group 15 includes two relative guide wheels, the two guide wheels are rotatably connected to a carrier plate, the carrier plate is fixedly connected to the support seat, the support seat is slidably connected to the base 1, one end of the connecting rod 6 is fixedly connected to the extension rod 42, and the other end is fixedly connected to the support seat; through each guide wheel group 15, the starting section of the wire can enter each guide wheel group 15 closely after passing through each traction wheel group 2, so as to facilitate the straightening of the starting section of the wire.

[0033] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A power line straightening machine, comprising a base, on which a first straightening wheel set and a second straightening wheel set perpendicular to each other are arranged, characterized in that: It also includes a traction mechanism disposed on the base, the traction mechanism includes a driving assembly and a plurality of traction wheel groups, each traction wheel group is slidably connected to the base along a guide path, the guide path includes connected straight segments and arc segments, when the bent wire to be straightened passes into each traction wheel group in the arc segment, the driving assembly drives each traction wheel group to slide and switch from the arc segment to the straight segment to pre-straighten the wire; The driving assembly includes a hydraulic cylinder, a slide, a guide plate, an extension rod, and a plurality of transmission units arranged one by one with the traction wheel groups, wherein the slide is opened on the base along the guide path, the length direction of the guide plate extends along the guide path, and the extension rod is fixedly connected to the piston rod of the hydraulic cylinder; each transmission unit includes: A support column, which is slidably connected to the base along a slide groove, and a top of which is connected to a corresponding traction wheel group; A telescopic rod, one end of which is fixedly connected to the extension rod, and the other end of which is rotatably connected to the corresponding support column through a sleeve; The guide groove is opened on the guide plate along the length direction of the guide plate, and the support column is provided with a sliding rod which is slidably connected with the guide groove.

2. A power wire straightener according to claim 1, characterized in that: A support plate is fixedly connected to the support column, and the traction wheel group includes a first guide wheel and a second guide wheel arranged on the corresponding support plate. The first guide wheel or the second guide wheel of at least one traction wheel group is a driving wheel driven to rotate by a motor.

3. A power wire straightening machine according to claim 2, characterized in that: The first guide wheel and the second guide wheel are both rotatably connected to the corresponding support plates, and the sliding rod is fixedly connected to the support column.

4. A power wire straightener according to claim 2, characterized in that: The first guide wheel is rotatably connected to the support plate, a slider is slidably connected to the support plate, and the second guide wheel is rotatably connected to the slider; Each transmission unit further includes a linkage assembly, the linkage assembly including a sliding sleeve, a hinged rod and an inclined slot, the sliding sleeve is slidably connected to the corresponding support column, one end of the hinged rod is hinged to the sliding sleeve, and the other end is hinged to the corresponding slider, and the inclined slot is connected to the straight end of the corresponding guide slot; The slide bar is slidably connected to the support column via a slide sleeve, and the slide bar can be slidably matched with the inclined groove.

5. A power wire straightening machine according to claim 1, characterized in that: It also includes a plurality of guide wheel groups, each of which is horizontally slidably connected to the base, and a connecting rod is arranged between each guide wheel group and the extension rod.

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