Twisting machine

Abstract

The utility model relates to the field of winding of windings, in particular to a twisting machine, which comprises a twisting part, a thread-off part and a moving part, the twisting part and the thread-off part are arranged in a body, the moving part rotates in the body, and after a copper wire penetrates through the twisting part, the thread-off part and the moving part, the head end and the tail end of the copper wire are kept in a linear state by a thread-feeding part; a thread loosening head contained in the thread loosening part is arranged to do transverse receding movement on a thread loosening plate when a straight needle part is overturned, and a straight needle in the straight needle part is switched back and forth between a state of retracting and a state of penetrating through the thread loosening head according to the overturning direction; the twisting part, the wire loosening part and the moving part form the wire twisting device, a wire twisting means is provided, under the means, the diameter of a copper wire is rewound into multiple strands from one strand, the diameter of the copper wire is enlarged by combining a twisting mode, and the copper wire is enabled to synchronously fall off from an inclined needle and a straight needle by combining the inclination direction of the inclined needle and an overturning assembly in the wire loosening part. And the situation of wire hanging is avoided.

Description

Technical Field

[0001] The utility model relates to the field of winding wires of windings, and particularly to a wire twister. Background Art

[0002] A large number of turns of copper wires are wound on the winding, and the number of turns wound and the requirements for the copper wires in the copper wires are determined according to the needs of customers.

[0003] The wire feeding wheel and the guide pin mechanism with a wire clamping function are responsible for the conveyance of the copper wire in the winding mechanism. However, such wire feeding components have certain requirements for the diameter specifications of the copper wire based on their own materials and structures. For example, under the special requirements of some customers, copper wires with a diameter of less than 0.15 mm need to be wound on the bobbin. The minimum diameter of the copper wire that the conventional guide pin mechanism can clamp is 0.15 mm. At this time, the guide pin mechanism cannot clamp the copper wire, and thus the copper wire cannot be conveyed. Similarly, this problem also occurs in the immovable wire feeding wheels, and the space reserved between these wire feeding wheels is greater than or equal to 0.15 mm. Summary of the Utility Model

[0004] To solve the above problems, the utility model provides a wire twister, which winds the copper wire back and takes the means of twisting to meet the necessary conditions for being clamped by the wire feeding wheel and the guide pin mechanism.

[0005] To achieve the above object, the technical solution adopted by the utility model is:

[0006] A wire twister, characterized in that the wire twister includes a twisting part, a wire releasing part oppositely arranged in the body, and a moving part that makes a rotary motion in the body. After the copper wire passes through the above-mentioned twisting part, wire releasing part, and moving part, its head and tail ends are maintained in a straight state by the wire feeding part;

[0007] The wire releasing part includes a flipping assembly for implementing the flipping of the straight pin component, a wire releasing head surrounding the periphery of the straight pin component, and a wire releasing plate. The wire releasing plate is fixed in the body, and the wire releasing head is arranged to make a lateral retreating movement on the wire releasing plate when the straight pin component flips. The straight pin in the straight pin component switches back and forth between two states of retracting and passing through the wire releasing head according to the flipping direction;

[0008] The rotating block in the twisting part has a self-rotating shaft that is perpendicular to the straight pin during wire twisting. A table part extending in the direction of the above-mentioned straight pin is provided in a partial area near the outer edge of the rotating block, and the inclined pin on the table part is inclined towards the wire passing hole on the rotating block;

[0009] The copper wire is in contact with the above-mentioned straight pin and bent pin. A guiding port through which the copper wire passes is provided on the moving part. The moving part, through a rotary motion, draws the copper wire from the wire feeding part and winds it around the straight pin and the bent pin.

[0010] Further, the thread removing head has a structure with open upper and lower end faces and a hollow interior, and the straight needle component penetrates into the interior of the thread removing part from one end.

[0011] Further, a first opening part extending towards the opposite side is provided on the side of the thread removing plate adjacent to the thread removing head, and a ring groove adapted to the inner wall of the first opening part is provided on a partial area of the outer peripheral surface of the thread removing head. The thread removing head is horizontally slid and inserted on the thread removing plate through the cooperation between the ring groove and the first opening part.

[0012] Further, it also includes a sliding seat, an optical axis, and a cylinder seat for the lateral movement of the flipping assembly. The optical axis is fixed inside the main body, and the sliding seat is sleeved on the optical axis. The flipping assembly is composed of a flipping cylinder, a swing arm, a rotating plate, and a support member. The support member is arranged on the sliding seat, and there is a group of support members. The rotating plate is located between the support members and is connected by a rotating shaft. Any rotating shaft passing through the support member is connected to the first end of the swing arm. A second opening part with an activity space is provided at the second end of the swing arm. The flipping cylinder is fixed on the sliding seat through the cylinder seat, and the output end of the flipping cylinder is connected to the above-mentioned second end through a connecting screw. When the flipping cylinder makes a lateral push, the connecting screw plays a role of pulling or pushing from within the second opening part, causing synchronous rotation between the swing arm and the rotating shaft, driving the rotation of the rotating plate, and the straight needle component is arranged on the side surface of the rotating plate.

[0013] Further, the straight needle component is formed by connecting a needle head column and a straight needle. The needle head column is connected to the rotating plate. During flipping, the needle head column makes the thread removing head slide by contacting the thread removing head.

[0014] Further, the rotation driving mechanism is arranged outside the main body. The rotation driving mechanism is composed of a rotating motor, a driven wheel, a belt, a hollow rotating shaft, and a driving wheel. The rotating motor is located inside the main body. The driving wheel and the driven wheel are arranged on the side surface of the main body. The driven wheel is sleeved on the hollow rotating shaft, the driving wheel is sleeved on the motor shaft of the rotating motor, the belt is sleeved on the driven wheel and the driving wheel, the hollow rotating shaft penetrates from outside the main body into the interior and is sleeved by a rotating block, and the copper wire passes through the hollow rotating shaft inside the rotating block and extends out of the main body.

[0015] Further, the moving component includes a sprocket, a chain, a wire passing adjusting plate, a slider, and a connecting pin. The sprocket is rotatably arranged on the bottom inside the main body, the chain is sleeved on the sprocket and meshes with the sprocket. Among them, the chain is maintained in a state where the connecting pin is vertical. The connecting pin penetrates into a bearing provided at the bottom of the slider, the wire passing adjusting plate is arranged on the slider, and a guiding port is provided on the wire passing adjusting plate.

[0016] Further, the wire passing adjusting plate includes a group of supporting parts, and the guiding ports are all provided on the supporting parts. Among them, the supporting parts of adjacent rotating blocks are inclined with the guiding ports corresponding to the wire passing ports.

[0017] The beneficial effects of the utility model:

[0018] The twisting part, wire-off part, and moving components that make up the present utility model provide a wire twisting means. Under this means, the diameter of the copper wire changes from a single strand to multiple strands through winding, and by combining the twisting method, the diameter of the copper wire is enlarged. Combining the inclination direction of the inclined needle and the flipping component in the wire-off component enables the copper wire to fall off the inclined needle and the straight needle synchronously, without the occurrence of wire hanging. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of the present utility model.

[0020] Figure 2 is an internal structure diagram of the present utility model.

[0021] Figure 3 is Figure 2 an enlarged schematic view of part B of

[0022] Figure 4 is Figure 2 an enlarged schematic view of part A of

[0023] Figure 5 is Figure 2 a perspective view of another view surface.

[0024] Figure 6 is Figure 5 an enlarged schematic view of part C of

[0025] Figure 7 is a top view of the present utility model.

[0026] Figure 8 is a perspective view of the wire-off part.

[0027] Figure 9 is a perspective view of another view surface of the wire-off part.

[0028] Figure 10 is a schematic view after the straight needle part is separated from the wire-off head.

[0029] Figure 11 is a usage state diagram when the straight needle passes through the wire-off head during copper wire winding.

[0030] Figure 12 is a usage state diagram of the wire-off part during wire-off.

[0031] Figure 13 is a schematic diagram of copper wire winding.

[0032] Figure 14 is a perspective view of the rotating block.

[0033] Figure 15 is a perspective view of the wire-off plate.

[0034] Figure 16 It is a perspective view of another view surface of the present utility model.

[0035] Figure 17 It is Figure 16 An enlarged schematic view of part D of

[0036] Figure 18 It is a perspective view of a moving part.

[0037] Figure 19 It is a perspective view of the slider in the upward view state. Detailed implementation manners

[0038] Please refer to Figure 2 As shown in the figure, the shown twisting machine has two usage stages. The first stage is to wind a single-strand copper wire 5 into a multi-strand copper wire by means of rewinding. The second stage is to twist the above-mentioned multi-strand copper wire 5. The copper wire 5 combined by this means can meet the basic conditions for being clamped.

[0039] Such as Figure 1 As shown in the figure, the above-mentioned twisting machine includes a main body 1. The main body 1 is provided with a lead hole 100 and a wire passing hole. The copper wire 5 enters the main body 1 from the lead hole 100 and passes out from the wire passing hole. The copper wire 5 is subjected to twisting treatment inside the main body 1.

[0040] The copper wire 5 inside the main body 1 is kept in a straightened state, which is mainly maintained by the wire feeding part outside the main body 1 to ensure that the copper wire 5 will not affect the twisting effect due to natural drooping.

[0041] Such as Figure 2 、 4 、9 shown, the following parts are provided inside the main body 1, which are respectively:

[0042] A twisting part 2, a wire releasing part 3 and a moving part 4. The twisting part 2 is used to rotate the copper wire 5 and twist the multi-strand copper wire 5 into a twisted shape. The wire releasing part 3 is to release the constraint of the copper wire 5 from the main body 1 after the twisting contact. The moving part 4 is to pull the copper wire 5 and drive the copper wire 5 to make a rotary motion, and wind the multi-strand copper wire 5 around the straight needle 31 in the wire releasing part 3 and the inclined needle 21 in the twisting part 2 (as Figure 13 shown). In some embodiments, the first wire feeding part corresponding to the lead hole 100 is a wire feeding disc (not shown in the figure). When rewinding, the copper wire 5 on the wire feeding disc is continuously sent out by being pulled by the moving part 4. The second wire feeding part corresponding to the wire passing hole is a pair of mutually movable guide wheels (not shown in the figure). The two guide wheels can approach each other to clamp the copper wire 5 so that the copper wire 5 cannot move.

[0043] The twisting part 2 and the wire releasing part 3 are arranged oppositely, and the moving part 4 is located below the twisting part 2 and the wire releasing part 3;

[0044] As shown Figures 8 - 12 in the figure, the offline part 3 includes a flipping component, an offline head 32, a straight needle component, and an offline plate 33. The offline head 32 is constrained on the offline plate 33 and can move back and forth on the offline plate 33. The offline head 32 has a structure with openings at the upper and lower ends and a hollow interior. The straight needle component is located inside the offline head 32 and is surrounded by the interior of the offline head 32. The straight needle component is connected to the output end of the flipping component. During operation, the straight needle 31 in the straight needle component remains in a vertically downward state and protrudes out of the offline head 32 (as shown Figure 11 in the figure). As shown Figure 13 in the figure, it is a schematic diagram after the copper wire 5 is wound. During offline, the straight needle component makes a flipping movement, and the straight needle component retracts into the offline head 32. The movement trajectory of the flipping movement of the straight needle component contacts the interior of the offline head 32, and this contact presses on one side inside the offline head 32. The offline head 32 makes a concession to the straight needle component by moving horizontally on the offline plate 33. It is not difficult to see that this offline is that the straight needle component retracts into the offline head 32, relying on the lower end of the offline head 32 to block the copper wire 5 from following the straight needle component. After the straight needle component is completely retracted into the offline head 32, the twisted copper wire 5 detaches from the offline head 32.

[0045] It should be noted that the movement trajectory of the copper wire 5 winding is elliptical, and the straight needle 31 is located at one of the vertices of the above movement trajectory.

[0046] As shown Figure 4 , 5 , and 6, the twisting part 2 for twisting the copper wire 5 and providing another vertex for the movement trajectory to assist the straight needle 31 for the copper wire 5 to wind includes a rotary driving device, a rotary block 22, and an inclined needle 21. On the first surface 22a of the rotary block 22 opposite to the offline part 3 (as shown Figure 14 in the figure), a platform part 22b connected to the inclined needle 21 extends out. Among them, the platform part 22b extends out from a local area near the edge of the first surface 22a. The inclined needle 21 is located on the inner surface of the platform part 22b. The rotation axis of the rotary block 22 is its own central axis. When driven by the rotary driving device, the rotary block 22 makes a self-rotation movement, driving the copper wire 5 wound around the inclined needle 21 to rotate;

[0047] Among them, the inclined needle 21 is inclined towards the first surface 22a. The central area of the first surface 22a is communicated with the wire passing hole on the main body 1. During offline, the wire feeding part corresponding to the wire passing hole outside the main body pulls or draws the copper wire 5, and the copper wire 5 slides down along the inclined direction of the inclined needle 21;

[0048] As shown Figure 6As shown, the moving part 4 has a guiding opening 41 through which a copper wire 5 passes. During the rotary motion of the moving part 4, the copper wire 5 pulled by the guiding opening 41 rotates around the straight needle 31 and the inclined needle 21.

[0049] In terms of the usage effect, the present utility model realizes the twisting of the copper wire 5 through the above structure, changing the single-strand copper wire 5 into multiple strands by means of winding (as Figure 13 shown). Then, combined with the rotating action, the tightness between the copper wires 5 is increased, enabling the overall copper wire 5 to obtain a diameter that can be clamped. Additionally, this twisting method is not limited by the wire size. Using thinner copper wires 5 or other wires can also be twisted through the present utility model.

[0050] The working principle of the present utility model is as follows:

[0051] S1, With the help of manual labor or other external tools, the copper wire 5 is sequentially passed through the lead wire opening, the guiding opening 41, the rotating block 22, and the wire passing hole, and the copper wire 5 is maintained in a straight state by the mutually movable guiding wheel and the wire feeding wheel;

[0052] S2, Perform a flipping action on the straight needle component. Specifically, the flipping direction is that the straight needle component passes through the outside of the thread removing head 32 and faces the inclined needle 21;

[0053] S3, The moving part 4 performs a rotary motion. Under the action of the guiding opening 41, the copper wire 5 also performs a rotary motion. The path of the copper wire 5 is located outside the straight needle 31 and the inclined needle 21. This rotary motion causes the copper wire 5 to wind around the straight needle 31 and the inclined needle 21. After repeatedly performing the above motion multiple times, the copper wire 5 wound around the straight needle 31 and the inclined needle 21 changes from a single strand to multiple strands;

[0054] S4, After the winding motion ends, the rotation driving device drives the rotating block 22 to rotate. The rotation of the rotating block 22 drives the inclined needle 21 to rotate together. The position of the straight needle 31 is fixed. Therefore, the copper wire 5 wound around the inclined needle 21 forms a twist shape through continuous rotation ( Figure 13 The arrow in shows the direction of rotation of some copper wires driven by the inclined needle 21 in some embodiments);

[0055] S5, When retracting the wire, relying on the longitudinal position of the thread removing head 32 remaining unchanged, the straight needle component retracts into the thread removing head 32 (as Figure 12 shown), and the copper wire 5 having a winding relationship with the straight needle component is blocked by the lower end of the thread removing head 32 and falls off the straight needle component.

[0056] The side of the wire removing plate 33 adjacent to the thread removing head 32 is provided with a first opening 33a extending towards the opposite side, and a partial area of the outer peripheral surface of the thread removing head 32 is adapted to the first opening 33a (as Figure 10, 11 As shown in Fig. 15, the annular groove 32a on the inner wall of the thread removing head 32 is laterally slidably inserted into the thread removing plate 33 through the cooperation between the annular groove 32a and the first opening 33a; this structure has the advantages of simple assembly, fewer components to be implemented, and low cost.

[0057] Such as Figure 3 , 8 As shown in Figs. 8 and 9, the flipping assembly includes a flipping cylinder 34a, a swing arm 34b, a rotating plate 34c, and a support member 34d combined. There is a set of support members 34d. The rotating plate 34c is located between the support members 34d and is connected by a rotating shaft 34e. Any rotating shaft 34e passing through the support member 34d is connected to the first end of the swing arm 34b. The second end of the swing arm 34b is provided with a second opening 34b-1 with an activity space. The output end of the flipping cylinder 34a is connected to the above-mentioned second end through a connecting screw 34f. When the flipping cylinder 34a is laterally pushed, the connecting screw 34f pulls or pushes inside the second opening 34b-1, causing the swing arm 34b and the rotating shaft 34e to rotate synchronously, driving the rotating plate 34c to rotate, and the straight needle member is arranged on the side surface of the rotating plate 34c.

[0058] Such as Figure 5 and 8 As shown in Figs. 14 and 15, the above specific limitations on this flipping assembly mainly ensure that the flipping assembly can be in a vacated manner, and also include a sliding seat 35 and a first optical axis 36 for the lateral movement of the flipping assembly. The first optical axis 36 is arranged inside the main body 1. The sliding seat 35 is sleeved on the first optical axis 36. The support member 34d is arranged on the sliding seat 35. The flipping cylinder 34a is fixed on the sliding seat 35 through a cylinder seat 36. In this way, the position of the flipping assembly is controllable, and the distance between the straight needle 31 and the inclined needle 21 can be controlled by freely rotating the position of the flipping assembly.

[0059] Such as Figures 10 - 11 As shown in Fig. 16, the straight needle member is formed by connecting a needle head column 37 and a straight needle 31. When flipping, the needle head column 37 contacts the thread removing head 32 to make the thread removing head 32 slide.

[0060] Such as Figure 2 and 16 As shown in Figs. 16 and 17, the rotation driving mechanism of the rotating block 22 is composed of a rotating motor 23, a driven wheel 24, a belt 25, a hollow rotating shaft 26, and a driving wheel 27. The hollow rotating shaft 26 passes through the through-hole from outside the main body 1 into the inside and is sleeved by the rotating block 22. The copper wire 5 passes out of the hollow rotating shaft 26 inside the rotating block 22 to the outside of the main body 1.

[0061] In some embodiments, such as Figure 14As shown, a counterweight 28 opposite to the table portion 22b is embedded in the rotating block 22 to cope with the situation where the rotating motor 23 rotates at too high a speed.

[0062] As Figure 7 , 18 -19 shows, the moving part 4 performing a rotary motion includes a sprocket 41, a chain 42, a wire passing adjustment plate 43, a slider 44, a second optical axis 45, and a sleeve 46; the second optical axis 45 is disposed in the main body 1, the sleeve 46 is sleeved on the second optical axis 45 and is connected to the slider 44, at least two sprockets 41 are provided, the chain 42 is sleeved on the sprockets 41 and meshes with the sprockets 41. Among them, the chain 42 is maintained in a state where the connecting pin 48 is vertical, and the connecting pin 48 is connected to the bearing 47 at the bottom of the slider 44. Thus, when the chain 42 moves, it will also drive the slider 44 to move. The wire passing adjustment plate 43 is disposed on the slider 44, and guiding openings 41 are provided on the wire passing adjustment plate 43, and at least two guiding openings 41 are provided; adopting the above technical solution can effectively reduce the height of the moving part 4 in the main body 1, ensure that the wire passing adjustment plate 43 is located below the straight needle 31 and the inclined needle 21, and the use of the bearing ensures that the wire passing adjustment plate 43 does not affect the rotation of the connecting pin 48. When the chain 42 is driven, the connecting pin 48 rotates, especially at the turning position, affecting the rotation of the connecting pin 48 will cause the chain 42 to unable to continue to be driven.

[0063] Since the wire passing adjustment plate 43 is located below the inclined needle 21, therefore, after the copper wire 5 passes through the guiding opening 41, the path between the copper wire 5 and the rotating block 22 is inclined. When the copper wire 5 is pulled, the copper wire 5 will be in close contact with some areas on the inner surface of the guiding opening 41. To prevent the copper wire 5 from being scratched, the wire passing adjustment plate 43 includes a set of supporting portions 43a, and the guiding openings 41 are all provided on the supporting portions 43a. Among them, the supporting portions 43a of adjacent rotating blocks 22 are inclined in a posture where the guiding openings 41 correspond to the wire passing holes. When feeding the wire, the tightness of the contact between the copper wire 5 and the guiding opening 41 can be reduced, and the situation where the copper wire 5 is scratched can be avoided.

[0064] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary engineering and technical personnel in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A twisting machine, characterized in that, The twisting machine includes a twisting part, a thread-removing part and a moving part that rotates in the body. After the copper wire passes through the twisting part, the thread-removing part and the moving part, the two ends of the copper wire are maintained in a straight line by the wire feeding part. The thread-off part comprises a turning assembly for turning over the straight needle component, a thread-off head surrounding the straight needle component, and a thread-off board, wherein the thread-off board is fixed in the body, and the thread-off head is configured to perform a lateral retreat on the thread-off board when the straight needle component is turned over, and the straight needle in the straight needle component switches back and forth between the two states of retracting and passing through the thread-off head according to the turning direction; The rotating block in the twisting part has a rotation axis which is perpendicular to the straight needle when twisting the thread. The rotating block has a platform part extending in the direction of the straight needle on a part of the area near the outer edge. The oblique needle on the platform part is inclined toward the thread passing hole on the rotating block. The copper wire is in contact with the straight needle and the curved needle. The moving part is provided with a guide port through which the copper wire passes. The moving part pulls the copper wire from the wire feeding part and winds it around the straight needle and the curved needle through rotational motion.

2. The twisting machine according to claim 1, characterized in that, The thread stripping head is a structure with upper and lower end surfaces opened and an inner hollow portion, and a straight needle component is inserted into the inner portion of the thread stripping portion from one end.

3. A twisting machine according to claim 1, characterized in that, The side of the de-wire plate adjacent to the de-wire head is provided with a first opening extending toward the opposite side, and a partial area of the outer peripheral surface of the de-wire head is provided with an annular groove adapted to the inner wall of the first opening, and the de-wire head is laterally slidably inserted into the de-wire plate through the cooperation between the annular groove and the first opening.

4. A twisting machine according to claim 1, characterized in that, The invention also comprises a sliding seat, an optical axis and a cylinder seat for horizontal movement of the flipping assembly. The optical axis is fixed in the main body and the sliding seat is sleeved on the optical axis. The flipping assembly comprises a flipping cylinder, a swing arm, a rotating plate and a supporting member. The supporting member is arranged on the sliding seat and a group of supporting members are provided. The rotating plate is located between the supporting members and is connected through a rotating shaft. Any rotating shaft passing through the supporting member is connected to the first end of the swing arm. The second end of the swing arm is provided with a second opening with a movable space. The flipping cylinder is fixed to the sliding seat through the cylinder seat. The output end of the flipping cylinder is connected to the above-mentioned second end through a connecting screw. When the flipping cylinder is pushed horizontally, the connecting screw has a pulling or pushing effect from the second opening, so that the swing arm and the rotating shaft rotate synchronously, driving the rotating plate to rotate. The straight needle component is arranged on the side of the rotating plate.

5. A twisting machine according to claim 4, characterized in that, The straight needle component is formed by connecting a needle column and a straight needle. The needle column is connected to a rotating plate. When turning over, the needle column contacts the thread-off head to make the thread-off head slide.

6. A twisting machine according to claim 1, characterized in that, The rotary drive mechanism is arranged outside the body, and the rotary drive mechanism is composed of a rotary motor, a driven wheel, a belt, a hollow rotating shaft, and a driving wheel. The rotary motor is located inside the body, and the driving wheel and the driven wheel are arranged on the side of the body. The driven wheel is sleeved on the hollow rotating shaft, and the driving wheel is sleeved on the motor shaft of the rotary motor. The belt is sleeved on the driven wheel and the driving wheel. The hollow rotating shaft penetrates from the outside of the body to the inside and is sleeved by the rotating block. The copper wire penetrates from the hollow rotating shaft in the rotating block to the outside of the body.

7. A twisting machine according to claim 1, characterized in that, The moving part includes a sprocket, a chain, a wire passing adjustment plate, a slider, and a connecting pin. The sprocket is rotatably arranged on the bottom inside the body, and the chain is sleeved on the sprocket and meshed with the sprocket. Among them, the chain is maintained in a state where the connecting pin is vertical. The connecting pin penetrates into a bearing provided on the bottom of the slider, and the wire passing adjustment plate is arranged on the slider, and a guiding port is arranged on the wire passing adjustment plate.

8. A twisting machine according to claim 7, characterized in that The wire passing adjustment plate includes a set of supporting parts, and the guiding ports are all arranged on the supporting parts. Among them, the supporting parts of adjacent rotating blocks are inclined in a posture where the guiding ports correspond to the wire passing ports.

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