Slidable line block for a bundle winch and method of use thereof

Abstract

The application discloses a slidable wire passing frame for a bundle twisting machine and a use method thereof, comprising a U-shaped groove frame, a square die groove, a drawing die, a bearing and a bolt positioning mechanism. The U-shaped groove frame is slidably installed on a bundle twisting machine rack, the square die groove is arranged in the U-shaped groove frame and used for placing a waste drawing die, and the bearing is installed between the square die groove and the drawing die. The application uses the waste drawing die to replace a traditional passing roller as a wire passing support, uses the high hardness characteristics of the die to avoid abrasion and scratch of copper wire, and simultaneously realizes reuse of the waste die. Flexible adjustment of a wire passing position is realized through sliding adjustment and bolt positioning, and the problems of easy abrasion and inconvenient adjustment of an existing wire passing device are effectively solved.

Description

Technical Field

[0001] This patent relates to the field of cable production equipment technology, specifically to a sliding cable guide frame for a stranding machine and its usage method. Background Technology

[0002] During the copper wire stranding process, the individual wire sections sag due to gravity, posing a safety hazard and potentially triggering alarm devices. Current methods often involve adding wire guide rollers for support, but these rollers develop grooves on their surface after prolonged use, damaging the copper wires and affecting quality; furthermore, reinforcing the rollers increases manufacturing costs. In addition, the wire guide device is usually fixed to the frame, making it difficult to adjust the wire guide position as needed, and requiring the removal and installation of multiple fasteners, resulting in cumbersome operations. Summary of the Invention

[0003] The technical problems to be solved are: the guide rollers of the existing stranding machine are prone to wear and scratching of copper wires, the guide position is not adjustable or inconvenient to adjust, and the manufacturing cost of the guide rollers is high.

[0004] The technical solution adopted to solve the above-mentioned technical problems is: a sliding wire guide frame for a stranding machine, including at least one U-shaped groove frame, the width of which matches the width of the drawing die used in the copper wire drawing process; a square die groove provided inside the U-shaped groove frame for placing the drawing die; and at least one bearing installed between the square die groove and the drawing die, so that the drawing die can rotate after being subjected to force; the U-shaped groove frame is slidably mounted on the guide rail on the frame of the stranding machine, and a pin positioning mechanism is provided between the U-shaped groove frame and the guide rail on the frame for fixing the U-shaped groove frame after it slides into place.

[0005] Furthermore, the U-shaped groove frame includes a base plate and side plates vertically arranged on both sides of the base plate, forming a U-shaped receiving space between the two side plates, and a square mold groove is arranged on the base plate and located between the two side plates.

[0006] Furthermore, the cross-section of the square mold groove is square, and its internal dimensions match the external dimensions of the drawing die. The drawing die is embedded in the square mold groove, and a bearing is installed between the outer wall of the drawing die and the inner wall of the square mold groove.

[0007] Furthermore, the number of bearings is two or more, and they are evenly distributed along the circumference of the drawing die, so that the drawing die can rotate freely in the square die groove after being subjected to force.

[0008] Furthermore, the drawing die is a high-crystal drawing die or a polycrystalline drawing die. The drawing die is a discarded die that is no longer used for the copper wire drawing process due to the wear and enlargement of the hole diameter. The center of the drawing die is provided with a wire passage hole, and the diameter of the wire passage hole is larger than the diameter of the copper wire.

[0009] Furthermore, the U-shaped groove frame is slidably arranged along the length of the stranding machine frame, and the bottom plate of the U-shaped groove frame is provided with a sliding mating surface that slides with the guide rail on the frame.

[0010] Furthermore, the pin positioning mechanism includes a positioning hole on the U-shaped slot frame, multiple adjustment holes on the guide rail on the frame, and a pin passing through the positioning hole and the adjustment holes; the multiple adjustment holes are spaced apart along the length of the guide rail, and the spacing between adjacent adjustment holes is unequal.

[0011] Furthermore, there are two or more U-shaped slot frames arranged sequentially along the length of the stranding machine frame, and the distance between the wire passage holes of adjacent U-shaped slot frames is adjusted according to the actual wire passage path.

[0012] The beneficial effects of this invention are as follows: This invention uses a waste drawing die to replace the traditional guide roller as the wire guide support, and utilizes the high hardness material of the die to avoid wear and scratches on the copper wire, while realizing the reuse of waste dies and reducing consumable costs; by sliding the U-shaped groove frame on the machine frame and cooperating with the pin positioning mechanism, the wire guide position can be flexibly adjusted and quickly fixed, shortening the wire change adjustment time; by setting a bearing between the square die groove and the drawing die, the die rotates slightly with the friction of the copper wire, avoiding fixed-point wear and extending service life; by adjusting the unequal spacing of the holes, it can adapt to the wire guide path requirements of different specifications of stranding machines, improving versatility. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall installation structure of the sliding wire frame of the present invention.

[0014] Figure 2 This is a front view of the sliding wire frame of the present invention.

[0015] Figure 3 This is a cross-sectional view of the U-shaped groove frame, drawing die, and bearing assembly of the present invention.

[0016] Figure 4 This is a cross-sectional view of the U-shaped groove frame, drawing die, and bearing assembly under the preferred longitudinal vibration reduction scheme of the present invention.

[0017] Figure 5 This is a cross-sectional view of the U-shaped groove frame, drawing die, and bearing assembly under the preferred transverse vibration reduction scheme of the present invention.

[0018] Figure 6 This is a cross-sectional view of the U-shaped groove frame, drawing die, and bearing assembly under the preferred hinge scheme of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. U-shaped groove frame; 2. Square mold groove; 3. Drawing mold; 4. Bearing; 5. Pin positioning mechanism; 6. Frame; 7. Guide rail; 8. Wire hole; 9. Positioning hole; 10. Adjustment hole; 11. Pin; 12. Base plate; 13. Side plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] like Figure 1 and Figure 2 As shown, a slidable wire guide frame for a wire stranding machine according to the present invention includes a U-shaped groove frame 1, a square die groove 2, a drawing die 3, a bearing 4, and a pin positioning mechanism 5. The width of the U-shaped groove frame 1 matches the width of the drawing die 3 used in the copper wire drawing process. The U-shaped groove frame 1 is slidably mounted on the frame 6 of the wire stranding machine. Specifically, the U-shaped groove frame 1 is slidably arranged along the length direction of the frame 6 of the wire stranding machine. The base plate 12 of the U-shaped groove frame 1 is provided with a sliding mating surface, which slides with the guide rail 7 on the frame 6.

[0022] The U-shaped slot frame 1 includes a base plate 12 and side plates 13 vertically arranged on both sides of the base plate 12, forming a U-shaped receiving space between the two side plates 13. A square mold slot 2 is disposed on the base plate 12 and located between the two side plates 13. The square mold slot 2 has a square cross-section, and its internal dimensions match the external dimensions of the drawing die 3. The drawing die 3 is embedded in the square mold slot 2, and bearings 4 are installed between the outer wall of the drawing die 3 and the inner wall of the square mold slot 2. There are two or more bearings 4, evenly distributed along the circumference of the drawing die 3, allowing the drawing die 3 to rotate freely within the square mold slot 2 under load.

[0023] The drawing die 3 is a high-crystal or polycrystalline drawing die. This drawing die 3 is a discarded die that is no longer used in the copper wire drawing process due to increased wear. The center of the drawing die 3 is provided with a wire guide hole 8, the diameter of which is larger than the diameter of the copper wire. Because the drawing die is made of a high-hardness material (high-crystal or polycrystalline), its hardness is much higher than that of the copper wire. It is not easy to produce wear grooves during long-term wire guiding, thus avoiding the problem of scratching the surface of the copper wire after the wear of the traditional guide roller.

[0024] like Figure 1 and Figure 3As shown, the pin positioning mechanism 5 includes a positioning hole 9 on the U-shaped slot frame 1, multiple adjustment holes 10 on the guide rail 7 on the frame 6, and a pin 11 passing through the positioning hole 9 and the adjustment holes 10. The multiple adjustment holes 10 are spaced apart along the length of the guide rail 7, and the spacing between adjacent adjustment holes 10 is unequal. This unequal spacing design allows the wire guide frame to flexibly adjust its position according to the actual wire path, adapting to the wire path requirements of different specifications of stranding machines.

[0025] In a preferred embodiment, there are two or more U-shaped slot frames 1, arranged sequentially along the length of the stranding machine frame 6. The distance between the wire-passing holes 8 of adjacent U-shaped slot frames 1 is adjusted according to the actual wire-passing path. During operation, each U-shaped slot frame 1 is slid to a suitable position according to the actual wire-passing path, so that each wire-passing hole 8 corresponds to the required path. Then, a pin 11 is inserted into the positioning hole 9 and the corresponding adjustment hole 10 to fix the U-shaped slot frame 1. After fixing, the copper wire passes through the wire-passing holes 8 of each drawing die 3 sequentially. Under the action of the bearing 4, the drawing die 3 can rotate slightly with the friction of the copper wire, avoiding fixed-point wear.

[0026] The working process of this invention is as follows: First, the waste high-crystal or polycrystalline drawing die 3, whose aperture has become larger due to wear, is placed into the square die slot 2, and a bearing 4 is installed between the square die slot 2 and the drawing die 3; then, the U-shaped slot frame 1 is installed as a whole at the single wire passing position of the stranding machine, so that the U-shaped slot frame 1 slides with the guide rail 7 on the frame 6; next, the U-shaped slot frame 1 is slid along the guide rail 7 to a suitable position according to the actual wire passing path; then, the U-shaped slot frame 1 is fixed using the pin positioning mechanism 5, that is, the pin 11 passes through the positioning hole 9 and the corresponding adjustment hole 10; finally, the copper wire single wire is passed through the wire passing hole 8 of the drawing die 3, and the drawing die 3 rotates slightly with friction under the action of the bearing 4.

[0027] As a preferred structural embodiment of the present invention, the base plate 12 of the U-shaped slot frame 1 is provided with a plurality of spare wire-passing holes of different diameters to accommodate the wire-passing requirements of copper wires of different diameters. Preferably, the base plate 12 is provided with 2 to 5 wire-passing holes of different diameters, and the centers of each wire-passing hole are located on the same horizontal line.

[0028] As another preferred structural solution of the present invention, the pin positioning mechanism 5 adopts a spring-reset pin, and a reset spring is sleeved on the pin. After the pin is inserted into the adjustment hole 10, it is automatically locked under the action of the spring. When it is pulled out, the spring force must be overcome to prevent accidental dislodgement.

[0029] like Figure 4As shown, in another preferred structural embodiment of the present invention, the bottom of the U-shaped channel frame 1 is provided with a multi-stage vibration damping structure, and the square mold slot 2 is floatingly installed inside the U-shaped channel frame 1 by means of vibration damping springs or rubber pads. The elastic vibration damping layer is made of silicone rubber or polyurethane elastomer with a thickness of 5 to 15 mm, and 2 to 4 evenly distributed vibration damping springs are provided between the square mold slot 2 and the bottom plate of the U-shaped channel frame. This structure allows the drawing die 3 to automatically adapt to the radial vibration of the copper wire during wire passing, keeping the wire passing hole 8 coaxial with the copper wire, and effectively reducing fretting wear during high-speed operation.

[0030] like Figure 5 As another preferred structural embodiment of the present invention, a tension adjustment mechanism, including a tension spring and a damper, is provided between the U-shaped groove frame 1 and the guide rail 7. One end of the tension spring is fixed to the frame 6, and the other end is connected to the U-shaped groove frame 1; the damper is arranged in parallel with the tension spring. The spring preload is manually adjustable according to the specifications of the copper wire. When the wire tension fluctuates, the U-shaped groove frame 1 drives the drawing die 3 to slide slightly on the guide rail 7 to buffer the tension impact, maintain a constant wire tension, and avoid wire breakage during high-speed stranding.

[0031] like Figure 6 As another preferred structural embodiment of the present invention, the side plate 13 of the U-shaped slot frame 1 adopts an openable hinge structure. One side of the side plate 13 is connected to the base plate 12 via a hinge, and the other side is locked to the base plate 12 via a buckle. The square mold slot 2 is set as an independent module. By opening the side plate 13, the square mold slot 2 and the drawing mold 3 can be removed from the top as a whole without disassembling the bearing 4, and the replacement time is shortened to within 10 seconds.

Claims

1. A sliding wire guide for a stranding machine, characterized in that: The device includes at least one U-shaped slot frame (1), the width of which matches the width of the drawing die (3) used in the copper wire drawing process; a square die slot (2) disposed inside the U-shaped slot frame (1) for placing the drawing die (3); and at least one bearing (4) installed between the square die slot (2) and the drawing die (3) to allow the drawing die (3) to rotate under force; the U-shaped slot frame (1) is slidably mounted on a guide rail (7) on a stranding machine frame (6), and a pin positioning mechanism (5) is provided between the U-shaped slot frame (1) and the guide rail (7) on the frame (6) for positioning the U-shaped slot frame (1) when it slides to the guide rail (7). After positioning, it is fixed; the drawing die (3) is a high crystal drawing die or a polycrystalline drawing die. The drawing die (3) is a waste die that is no longer used for copper wire drawing process due to the wear of the hole diameter. The center of the drawing die (3) is provided with a wire passage hole (8). The diameter of the wire passage hole (8) is larger than the diameter of the copper wire; the pin positioning mechanism (5) includes a positioning hole (9) set on the U-shaped slot frame (1), a plurality of adjustment holes (10) set on the guide rail (7) and a pin (11) passing through the positioning hole (9) and the adjustment hole (10). The plurality of adjustment holes (10) are spaced apart along the length direction of the guide rail (7), and the spacing between adjacent adjustment holes (10) is not equal; The number of bearings (4) is two or more, and they are evenly distributed along the circumference of the drawing die (3), so that the drawing die (3) can rotate freely in the square die groove (2) after being subjected to force; The square mold groove (2) is floatingly installed in the U-shaped groove frame (1) by means of vibration damping springs or rubber pads.

2. A slidable wire guide for a stranding machine according to claim 1, characterized in that: The U-shaped slot frame (1) includes a base plate (12) and side plates (13) vertically arranged on both sides of the base plate (12). A U-shaped receiving space is formed between the two side plates (13). The square mold slot (2) is arranged on the base plate (12) and located between the two side plates (13).

3. A slidable wire guide frame for a stranding machine according to claim 2, characterized in that: The square mold groove (2) has a square cross-section, and its internal dimensions match the external dimensions of the drawing mold (3). The drawing mold (3) is embedded in the square mold groove (2), and a bearing (4) is installed between the outer wall of the drawing mold (3) and the inner wall of the square mold groove (2).

4. A slidable wire guide frame for a stranding machine according to claim 1, characterized in that: The U-shaped slot frame (1) is slidably arranged along the length of the stranding machine frame (6). The bottom plate (12) of the U-shaped slot frame (1) is provided with a sliding mating surface, which is slidably mated with the guide rail (7) on the frame (6).

5. A slidable wire guide for a stranding machine according to claim 1, characterized in that: The number of U-shaped slots (1) is two or more, arranged sequentially along the length of the stranding machine frame (6), and the distance between the wire passage holes (8) of adjacent U-shaped slots (1) is adjusted according to the actual wire passage path.

6. A slidable wire guide for a stranding machine according to claim 1, characterized in that: A tension adjustment mechanism is also provided between the U-shaped groove frame (1) and the guide rail (7). The tension adjustment mechanism includes a tension spring and a damper. One end of the tension spring is fixed on the frame (6), and the other end is connected to the U-shaped groove frame (1). The damper and the tension spring are connected in parallel.

7. A slidable wire guide frame for a stranding machine according to claim 2, characterized in that: One side of the side plate (13) is connected to the base plate (12) by a hinge, and the other side is locked to the base plate (12) by a buckle. The square mold slot (2) is an independent module. The square mold slot (2) and the drawing mold (3) can be taken out from the top by opening the side plate (13).

8. A method of using a slidable wire guide frame for a stranding machine as described in any one of claims 1 to 7, characterized in that, Includes the following steps: Step 1: Insert the worn-out drawing die (3) with its diameter increased due to wear into the square die slot (2), and install the bearing (4) between the square die slot (2) and the drawing die (3); Step 2: Install the U-shaped slot frame (1) as a whole at the single wire passing position of the stranding machine, so that the U-shaped slot frame (1) slides with the guide rail (7) on the frame (6); Step 3: Slide the U-shaped slot frame (1) along the guide rail (7) to a suitable position according to the actual wire passing path, and accurately position it by referring to the scale markings on the side plate (13) of the U-shaped slot frame (1); Step 4: Use the pin positioning mechanism (5) to fix the U-shaped slot frame (1), so that the pin (11) passes through the positioning hole (9) on the U-shaped slot frame (1) and the corresponding adjustment hole (10) on the guide rail (7); Step 5: Pass the copper wire through the wire passing hole (8) of the drawing die (3), and the drawing die (3) rotates slightly with friction under the action of the bearing (4).

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