A cable stripping machine

Abstract

The present invention relates to a cable stripping machine, comprising a frame, an unwinding roller rotatably arranged at the front end of the frame, and a reeling roller rotatably arranged at the rear end of the frame, wherein the frame is provided with a cutting device for cutting and stripping the cable, wherein the cutting device comprises a guide sleeve which is in clearance with the cable core of the cable, wherein the outer circumferential wall of the guide sleeve is provided with at least two cutting knives for cutting the rubber layer of the cable, wherein the blade of the cutting knife extends to the end of the guide sleeve close to the unwinding roller, and the shortest distance between the blade of the cutting knife and the axis of the guide sleeve is equal to the radius of the guide sleeve. The cable stripping machine is not easy to damage the cable core of the cable in the process of stripping the cable.

Description

Technical Field

[0001] The invention relates to the technical field of recycling waste cables, in particular to a cable stripping machine. Background Art

[0002] During the upgrade and reconstruction of cable lines, a large number of cables need to be replaced, thus generating a lot of waste cables. Due to deformation and damage of waste cables, and the inevitable destruction and cutting during the replacement process, the replaced waste cables are no longer suitable for use as power lines. In order to comply with the concept of saving and environmental protection, the waste cable skin and metal core materials can be recycled.

[0003] The Chinese patent application number 2018109720472 discloses a waste cable stripping machine, comprising: a frame; a pay-off roller, supported on the frame, used to wind the waste cable; a straightening device, supported on the frame, used to straighten the waste cable to be stripped; a cutting device, supported on the frame, used to cut the cable skin of the waste cable to be stripped; two cable skin winding rollers, supported on the frame, used to wind the separated cable skin; a copper core winding roller, supported on the frame, used to wind the separated cable copper core; the pay-off roller, the straightening device, the cutting device, the two cable skin winding rollers and the copper core winding roller are arranged in sequence from one end of the frame, and the two cable skin winding rollers are symmetrically arranged on both sides of the frame. The cutting device is two cutting knives, which are used to peel off the rubber layer of the cable, and the cable skin will be collected on the cable skin winding roller, and the copper core of the cable will be collected on the copper core winding roller, so that the function of cable stripping can be realized.

[0004] The above waste cable stripping machine still has the following defects: the cable skin 12 outside the cable is formed by injection molding by an injection molding machine, and the injected cable skin 12 may be uneven up and down and left and right (such as Figure 5 As shown), the cutting knife on the above-mentioned cable stripping machine is fixed during cutting. If the rubber layer of a certain section of the cable is uneven during the cutting process, such as the cable skin 12 above the cable is thicker, the cutting knife below will cut the cable core 13 of the cable, causing damage to the cable core 13. Summary of the invention

[0005] In view of the deficiencies in the prior art, one of the purposes of the present invention is to provide a cable stripping machine, which is not likely to cause damage to the cable core of the cable during the cable stripping process.

[0006] The above-mentioned inventive object of the present invention is achieved through the following technical scheme: a cable stripping machine, comprising a frame, a reeling roller rotatably arranged at the front end of the frame, and a reeling roller rotatably arranged at the rear end of the frame, the frame is provided with a cutting device for cutting and stripping the cable, the cutting device comprises a guide sleeve which is gap-matched with the cable core of the cable, the outer circumferential wall of the guide sleeve is provided with at least two cutting knives for cutting the rubber layer of the cable, the blade of the cutting knife extends to the end of the guide sleeve close to the side of the reeling roller, and the shortest distance between the blade of the cutting knife and the axis of the guide sleeve is equal to the radius of the guide sleeve.

[0007] By adopting the above technical scheme, during the stripping process, the cable core of the cable passes through the guide sleeve, continuously enters from one end of the guide sleeve, and passes out from the other end. During this period, the cutting knife on the guide sleeve will also continuously cut the cable skin. The guide sleeve can guide the cable core of the cable, and the cutting knife is fixed on the guide sleeve, so that during the stripping process of the cable, the cutting knife is not easy to cut the cable core of the cable, and it is not easy to damage the cable core of the cable.

[0008] In a preferred example, the present invention can be further configured as follows: the end surface of the guide sleeve relative to the unwinding roller is an inclined surface, and the inclined surface is inclined from the outer wall of the guide sleeve to the inner wall thereof toward the unwinding roller.

[0009] When the guide sleeve is installed on the cable core of the cable, there will inevitably be a certain gap between the cutting knife and the cable core of the cable. In this way, when cutting, the cutting knife will only cut a deep incision on the cable skin, but it will not be completely cut open. The subsequent cable skin is blocked by the guide sleeve, and the cable skin is pulled into two halves on both sides. In this way, the pulling force applied to the cable skin will be relatively large, and the cable skin is prone to breakage, which will affect the subsequent collection. By adopting the above technical solution, the end of the guide sleeve facing the unwinding roller side is an inclined surface, so that when the cable moves forward, the cable skin can be deformed to a certain extent, and the inclined surface can enter between the cable skin and the cable core, which has the effect of expanding the cable skin, so that the cable skin can be completely cut into two halves by the cutting knife, so that the cable skin is not easy to break during the cable stripping process.

[0010] In a preferred example, the present invention can be further configured as follows: a straightening device is provided between the unwinding roller and the cutting device, the straightening device comprises a straightening tube for the cable to pass through, and the inner wall of the straightening tube is in clearance with the outer wall of the cable.

[0011] The scrap cable may be bent in some places. When the bent cable is cut later, the cutting knife is still very easy to cut the bent cable core, which will cause damage to the cable core. By adopting the above technical solution, when the cable passes through the straightening tube, because the diameter of the straightening tube is fixed, the straightening tube can straighten the entire cable, so that when stripping the cable later, the cutting knife is less likely to cut the cable core.

[0012] In a preferred example, the present invention can be further configured as follows: an end of the straightening tube close to the unwinding roller is fixedly connected to a flaring tube, and the inner diameter of the flaring tube close to the end of the straightening tube is smaller than the inner diameter of the other end.

[0013] By adopting the above technical solution, the setting of the expanded tube allows the bent cable to enter the straightening tube more easily.

[0014] In a preferred example, the present invention can be further configured as follows: the guide sleeve includes a sleeve and a sliding bearing fixedly disposed in the sleeve.

[0015] By adopting the above technical solution, the arrangement of the sliding bearing greatly reduces the wear between the sliding bearing and the cable core, making the cable core less likely to be damaged during the stripping process.

[0016] In a preferred example, the present invention can be further configured as follows: the frame is provided with a support column, the support column is provided with a fixing sleeve, the inner diameter of the fixing sleeve is larger than the outer diameter of the guide sleeve, an elastic member is provided between the guide sleeve and the fixing sleeve, and the guide sleeve is positioned in the fixing sleeve by the elastic member.

[0017] When the guide sleeve is fixed, if the rubber layer of a certain section of the cable is uneven, the friction between the cable core and the guide sleeve on the side where the rubber layer is relatively thinner will be relatively large, and the wear will also be relatively large. By adopting the above technical solution, the guide sleeve is positioned in the fixed sleeve through an elastic member, so that the guide sleeve is not completely fixed, and can be moved slightly up, down, left, and right, and can even be rotated. This arrangement allows the guide sleeve to adapt to the changes of the cable and move slightly according to the changes of the cable, which can reduce the wear between the cable core and the guide sleeve, making the cable core of the cable less likely to be damaged during the stripping process.

[0018] In a preferred example, the present invention can be further configured as follows: the support column includes a sleeve body 1 and a sleeve body 2 slidably connected to the sleeve body 1, the sleeve body 1 is fixedly connected to the fixed sleeve, the sleeve body 2 is slidably connected to the frame, the sliding direction of the support column is the same as the axial direction of the unwinding roller, and the straightening tube is fixedly connected to the fixed sleeve.

[0019] When the unwinding roller pays out the cable and the reeling roller reels in the cable, the entire cable will continuously move back and forth left and right, and the height will continuously decrease. By adopting the above technical solution, the support column is slidably set on the frame and can be extended and retracted up and down. This arrangement allows the entire fixed sleeve to move with the cable, which can further reduce the wear between the cable and the guide sleeve.

[0020] In a preferred example, the present invention can be further configured as follows: the frame is provided with a traction device for pulling the separated cable sheath, the traction device includes two traction rollers rotatably arranged on the frame, the two traction rollers are arranged parallel to each other, the frame is provided with a driving mechanism for driving the two traction rollers to rotate, and the frame is provided with a cutting device for cutting the cable sheath.

[0021] If the cable sheath is collected by winding, the winding roller needs to be carried together during subsequent transportation, which makes transportation more troublesome. By adopting the above technical solution, the pulled cable sheath can be cut into sections by a cutting device, thereby facilitating subsequent transportation.

[0022] In a preferred example, the present invention can be further configured as follows: the cutting device includes a cutting knife fixed on one of the traction rollers, the spacing between the two traction rollers is smaller than the thickness of the cable sheath, the height of the cutting knife is equal to the spacing between the two traction rollers, the cutting knife is arc-shaped and wound around the traction roller, and the length from one end of the cutting knife to the other end relative to the axial direction of the traction roller is greater than the thickness of the cable sheath.

[0023] By adopting the above technical solution, the traction roller can continuously pull the cable skin when it rotates, and because the cutting knife is arc-shaped and wound on the traction roller, this arrangement allows the cutting knife to slowly cut the cable skin, and the two traction rollers can always pull the cable skin, so that the cable skin can be cut while being pulled, and the overall structure of the traction device and the cutting device will be simpler.

[0024] In summary, the present invention includes at least one of the following beneficial technical effects:

[0025] 1. The cutting knife on the guide sleeve can move adaptively according to the changes of the cable, so that the cutting knife is not easy to damage the cable core when cutting the cable;

[0026] 2. The cut cable skin can be directly cut off to facilitate subsequent transportation and recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 yes Figure 1 Front view between the middle support column and the fixing sleeve.

[0029] Figure 3 yes Figure 1 Schematic diagram of the structure of the cutting knife.

[0030] Figure 4 yes Figure 1 Schematic diagram of the structure of the traction device.

[0031] Figure 5 It is a schematic diagram of the cable structure with uneven injection molding.

[0032] In the figure, 1, frame; 2, unwinding roller; 3, cutting device; 31, guide sleeve; 311, sleeve; 312, sliding bearing; 32, cutting knife; 33, inclined surface; 4, straightening device; 41, straightening tube; 42, expanding tube; 5, supporting column; 51, sleeve body 1; 52, sleeve body 2; 6, fixing sleeve; 7, elastic member; 8, traction device; 81, traction roller; 82, driving mechanism; 9, cutting device; 91, cutting knife; 10, slide groove; 11, slider; 12, cable core; 13, cable skin; 14, stop bar; 15, bracket. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] Reference Figure 1 and Figure 2 , a cable stripping machine disclosed in the present invention, includes a frame 1, a reel 2 is rotatably arranged on the left side of the frame 1, and a reel is rotatably arranged on the right side of the frame 1. The cable is unwound from the reel 2, and then the stripped cable core 12 is reeled on the reel. The unwound roller 2 and the reel are driven by a motor.

[0035] A slide groove 10 extending along the axial direction of the unwinding roller 2 is provided on the frame 1, a slider 11 is slidably connected in the slide groove 10, a support column 5 is fixed on the slider 11, the support column 5 includes a sleeve 1 51 and a sleeve 2 52 slidably sleeved with the sleeve 1 51, the cross sections of the sleeve 1 51 and the sleeve 2 52 are both circular, the sleeve 2 52 is sleeved on the sleeve 1 51 and the two can rotate relatively, the sleeve 2 52 is slidably connected in the slide groove 10, a fixed sleeve 6 is fixed at the upper end of the sleeve 1 51, a cutting device 3 is arranged in the fixed sleeve 6, and the cutting device 3 includes a guide sleeve 31 fixed by bolts. There are two elastic members 7 on the inner wall, which are distributed up and down in the fixed sleeve 6. The elastic members 7 are rubber blocks. A guide sleeve 31 is arranged between the two elastic members 7. The guide sleeve 31 is also fixedly connected to the elastic member 7 by bolts. The guide sleeve 31 includes a sleeve 311 and a sliding bearing 312 fixedly arranged in the sleeve 311 by bolts. The cable core 12 of the cable passes through the sliding bearing 312, and the inner wall of the sliding bearing 312 is gap-matched with the outer wall of the cable core 12; two cutting knives 32 are arranged on the outer wall of the guide sleeve 31, and the two cutting knives 32 are symmetrical with respect to the axis of the guide sleeve 31.

[0036] Two stop bars 14 are fixedly arranged on the inner wall of the fixed sleeve 6, and the side walls of the stop bars 14 are both against the end of the guide sleeve 31 away from the unwinding roller 2. The setting of the stop bars 14 can prevent the guide sleeve 31 from moving in the conveying direction of the cable.

[0037] like Figure 1 and Figure 3 As shown, the blade of the cutting knife 32 faces one side of the unwinding roller 2 and extends to the end of the guide sleeve 31, the shortest distance between the blade of the cutting knife 32 and the axis of the sliding bearing 312 is equal to the radius of the sliding bearing 312, and the end face of the guide sleeve 31 facing the side of the unwinding roller 2 is an inclined surface 33, and the inclined surface 33 is inclined from the outer wall of the guide sleeve 31 to its inner wall toward the side of the unwinding roller 2. When the cable moves forward, the inclined surface 33 will enter between the cable sheath 13 and the cable core 12, and the cable core 12 of the cable passes through the sliding bearing 312, and the cutting knife 32 can cut the cable sheath 13 into two halves.

[0038] like Figure 1 As shown, a straightening device 4 is arranged between the unwinding roller 2 and the guide sleeve 31, and the straightening device 4 includes a straightening tube 41, and the straightening tube 41 is fixed on the guide sleeve 31 through a bracket 15, and the inner wall of the straightening tube 41 is gap-matched with the outer wall of the cable, and an expanding tube 42 is fixedly connected to the end of the straightening tube 41 close to the unwinding roller 2, and the inner diameter of the expanding tube 42 close to the straightening tube 41 is the same as the inner diameter of the straightening tube 41, and the inner diameter of the expanding tube 42 close to the straightening tube 41 is smaller than the inner diameter of the other end. The cable passes through the straightening tube 41, and the straightening tube 41 can straighten the cable. The cable is first straightened and then stripped.

[0039] like Figure 1 and Figure 4 As shown, two traction devices 8 are arranged on the frame 1, and the two traction devices 8 are respectively arranged on the left and right sides of the cutting device 3. After the cutting device 3 cuts the cable skin 13 into two halves, they are pulled by the traction devices 8 on the left and right sides respectively. The traction device 8 includes two traction rollers 81 rotatably arranged on the frame 1, and the two traction rollers 81 are arranged in parallel up and down. A driving mechanism 82 for driving the two traction rollers 81 to rotate is also arranged on the frame 1, and the driving mechanism 82 is an electric motor; a cutting device 9 is respectively installed on each traction device 8, and the cutting device 9 includes a cutting knife 91 fixed on one of the traction rollers 81, the cutting knife 91 is arc-shaped and wound on the traction roller 81, and the horizontal length of the cutting knife 91 is equal to the length of the traction roller 81, the distance between the two traction rollers 81 is less than the thickness of the cable skin 13, and the height of the cutting knife 91 is equal to the distance between the two traction rollers 81. Because the distance between the two traction rollers 81 is smaller than the thickness of the cable sheath 13 and the cutting knife 91 is arc-shaped, the cable sheath 13 can be continuously pulled over and the cable sheath 13 can be cut off at the same time, which is convenient for collection and transportation.

[0040] The implementation principle of this embodiment is as follows: after the equipment is started, the cable on the unwinding roller 2 is unwound, and the reeling roller reels the stripped cable core 12. After the cable is unwound from the unwinding roller 2, it first passes through the straightening tube 41, and the straightening tube 41 can straighten the bent cable. The straightened cable enters the guide sleeve 31, and the cutting knife 32 on the guide sleeve 31 can cut the cable skin 13 into two halves. The guide sleeve 31 can continuously change with the change of the position of the cable core 12, and the entire fixed sleeve 6 can change with the change of the position of the cable on the unwinding roller 2 and the reeling roller. The stripped cable is towed by the traction device 8, and the cable skin 13 is cut by the cutting device 9. A collecting bag can be fixed on the frame 1 next to the traction device 8, and the cut cable skin 13 can directly fall into the collecting bag, which can facilitate the collection and transportation of the cable skin 13, and at the same time, the cable core 12 of the cable is not easily damaged during the cable stripping process.

[0041] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable stripping machine, comprising a frame (1), a reeling roller (2) rotatably arranged at the front end of the frame (1), and a reeling roller rotatably arranged at the rear end of the frame (1), wherein the frame (1) is provided with a cutting device (3) for cutting and stripping the cable, characterized in that: The cutting device (3) comprises a guide sleeve (31) which is clearance-matched with the cable core (12) of the cable, and the outer circumferential wall of the guide sleeve (31) is provided with at least two cutting knives (32) for cutting the rubber layer of the cable, and the blades of the cutting knives (32) extend to the end of the guide sleeve (31) close to the unwinding roller (2), and the shortest distance between the blade of the cutting knife (32) and the axis of the guide sleeve (31) is equal to the radius of the guide sleeve (31). A straightening device (4) is provided between the unwinding roller (2) and the cutting device (3), and the straightening device (4) comprises a straightening tube (41) for the cable to pass through. The inner wall of the straightening tube (41) is clearance-matched with the outer wall of the cable, the frame (1) is provided with a support column (5), the support column (5) is provided with a fixing sleeve (6), the inner diameter of the fixing sleeve (6) is larger than the outer diameter of the guide sleeve (31), an elastic member (7) is provided between the guide sleeve (31) and the fixing sleeve (6), the guide sleeve (31) is positioned in the fixing sleeve (6) by the elastic member (7), the end face of the guide sleeve (31) relative to one side of the unwinding roller (2) is an inclined surface (33), and the inclined surface (33) is inclined from the outer wall of the guide sleeve (31) to its inner wall toward the side of the unwinding roller (2).

2. A cable stripping machine according to claim 1, characterized in that: One end of the straightening tube (41) close to the unwinding roller (2) is fixedly connected to a flaring tube (42), and the inner diameter of the flaring tube (42) close to one end of the straightening tube (41) is smaller than the inner diameter of the other end.

3. A cable stripping machine according to claim 1, characterized in that: The guide sleeve (31) comprises a sleeve (311) and a sliding bearing (312) fixedly arranged in the sleeve (311).

4. A cable stripping machine according to claim 1, characterized in that: The support column (5) comprises a sleeve body 1 (51) and a sleeve body 2 (52) slidably connected to the sleeve body 1 (51); the sleeve body 1 (51) is fixedly connected to the fixed sleeve (6); the sleeve body 2 (52) is slidably connected to the frame (1); the sliding direction of the support column (5) is the same as the axial direction of the unwinding roller (2); and the straightening tube (41) is fixedly connected to the fixed sleeve (6).

5. A cable stripping machine according to claim 1, characterized in that: The frame (1) is provided with a traction device (8) for traction of the separated cable sheath (13), the traction device (8) comprising two traction rollers (81) rotatably arranged on the frame (1), the two traction rollers (81) being arranged parallel to each other, the frame (1) is provided with a driving mechanism (82) for driving the two traction rollers (81) to rotate, and the frame (1) is provided with a cutting device (9) for cutting the cable sheath (13).

6. A cable stripping machine according to claim 5, characterized in that: The cutting device (9) comprises a cutting knife (91) fixedly mounted on one of the traction rollers (81); the distance between the two traction rollers (81) is smaller than the thickness of the cable sheath (13); the height of the cutting knife (91) is equal to the distance between the two traction rollers (81); the cutting knife (91) is arc-shaped and wound around the traction roller (81); and the length from one end of the cutting knife (32) to the other end relative to the axial direction of the traction roller (81) is greater than the thickness of the cable sheath (13).

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