A special tool for stripping the semi-conductive layer of a cable

Abstract

The present invention belongs to the field of cable stripping tools, and specifically relates to a special tool for stripping the semi-conductive layer of a cable. The special tool for stripping the semi-conductive layer of a cable provided by the present invention comprises a driving device, a transmission gear, a slider, a clamping claw, a blade, a pressing sheet, a pressing block and a clamping bolt; the driving device drives the transmission gear to rotate; three sliders are provided and evenly distributed on the outside of the transmission gear; so that the movement of the slider along the tangential direction can drive the clamping claw to move along the radial direction of the transmission gear. The present invention adopts a structure of an annular channel composed of three arc-shaped blades to strip the cable, which can realize the control of the stripping force, speed and accuracy, and ensure the quality and consistency of the stripping. At the same time, it can also be applicable to cables of different diameters. The present invention adopts a structure of a pressing sheet and a pressing block to fix the blade, so that the pressing sheet can be made very thin, reducing the influence of the thickness of the pressing sheet on the stripping effect. At the same time, the larger contact surface between the pressing sheet and the blade can effectively reduce the occurrence of blade breakage.

Description

Technical Field

[0001] The invention belongs to the field of cable stripping tools, and in particular relates to a special tool for stripping a semi-conductive layer of a cable. Background Art

[0002] In the practice of making cable heads, it is found that the manufacturing process of cable heads is greatly affected by temperature and humidity. The lower the temperature, the harder the layers of the cable become. Especially in winter, the cable head manufacturing is more difficult. It is found in practice that the stripping of the semi-conductive layer of the cable takes the longest time and is the most difficult. In a low temperature environment, the semi-conductive layer becomes harder and the fit with the main insulation deepens, making it difficult to strip. Secondly, the main insulation is easily scratched during the stripping process, resulting in uneven electric field, which requires a long time to polish. At present, there are no special tools for stripping the semi-conductive layer of the cable on the market. Summary of the invention

[0003] The invention provides a special tool for stripping a semi-conductive layer of a cable, which effectively solves the problems in the background technology.

[0004] The present invention provides a special tool for stripping a semi-conductive layer of a cable, comprising a driving device, a transmission gear, a slider, a clamping claw, a blade, a pressing sheet, a pressing block and a tightening bolt;

[0005] The driving device drives the transmission gear to rotate;

[0006] The slider is provided with a spur tooth surface, the slider is tangent to the transmission gear and the spur tooth surface is meshed with the transmission gear, and the rotation of the transmission gear can drive the slider to move along the tangential direction; the slider is parallel to the end face of the transmission gear and is provided with a first bevel tooth surface, and the slider is provided with three and evenly distributed on the outside of the transmission gear;

[0007] The clamping jaw is provided with a second bevel tooth surface, which meshes with the first bevel tooth surface, so that the movement of the slider in the tangential direction can drive the clamping jaw to move in the radial direction of the transmission gear; the end surface of the clamping jaw facing the center of the transmission gear is the mounting surface; the mounting surface is in an arc-shaped notch shape, and a groove is provided on the mounting surface; a notch is provided on one surface of the clamping jaw, which is perpendicular to and connected to the groove;

[0008] The blade corresponds to the shape of the mounting surface, the blade fits on the mounting surface, a through hole corresponding to the shape of the groove is provided on the blade, one end of the blade is a blade; three blades form a circular channel, and three blades form a circular ring;

[0009] The pressing sheet corresponds to the shape of the blade, the pressing sheet is attached to the blade, a protrusion extends from the outer convex surface of the pressing sheet, the protrusion corresponds to the shape of the groove, the protrusion passes through the through hole and is inserted into the groove, the protrusion is also provided with a slot hole corresponding to the notch, and the slot hole is provided with a first inclined surface;

[0010] The shape of the pressing block corresponds to the notch, and the pressing block is provided with a second inclined surface corresponding to the first inclined surface. After the pressing block passes through the notch, it is inserted into the slot hole and the second inclined surface is pressed against the first inclined surface. The second inclined surface presses the first inclined surface so that the pressing piece fixes the blade on the mounting surface.

[0011] The clamping bolt passes through the clamping block and engages with the thread of the slider.

[0012] As a further optimization of the present invention, the driving device includes a driving motor and a driving gear; the output end of the driving motor is connected to the driving gear, and the driving gear is meshed with the transmission gear.

[0013] As a further optimization of the present invention, it also includes a chassis; the driving device and the driving gear are arranged on the chassis; the chassis is provided with a circular hole, and the circular hole corresponds to the circular channel formed by the three blades.

[0014] As a further optimization of the present invention, it also includes a seat; the seat is in a sleeve shape, the seat covers the slider and the transmission gear, and the seat is fixed to the chassis.

[0015] As a further optimization of the present invention, the slider is provided with slide rods at both ends of its movement direction; the seat is provided with slide rails corresponding to the slide rods; and the slide rods can slide back and forth in the slide rails.

[0016] As a further optimization of the present invention, a handle is provided on the side wall of the seat.

[0017] As a further optimization of the present invention, the chassis is provided with a sleeve; it also includes a bearing, and the bearing is sleeved on the sleeve; the transmission gear is sleeved on the bearing.

[0018] As a further optimization of the present invention, the clamping jaw includes a claw seat and a claw finger; the second oblique tooth surface is arranged on the claw seat; the mounting surface is arranged on the claw finger; the claw seat and the claw finger are detachably connected.

[0019] As a further optimization of the present invention, the fixing surfaces of the claw seat and the claw finger are provided with a strip-shaped installation groove with a "convex"-shaped cross-section; a nut is provided in the wide groove of the installation groove, and the bolt passes through the claw finger and engages with the nut in the installation groove to fix the claw finger on the claw seat.

[0020] As a further optimization of the present invention, it also includes a dial, a connecting rod and a pinion; the pinion is meshed with the transmission gear; one end of the connecting rod is connected to the pinion, and the other end of the connecting rod is connected to the dial.

[0021] The invention provides a special tool for stripping the semi-conductive layer of a cable, which uses a structure of three arc-shaped blades forming an annular channel to strip the cable, and can control the stripping force, speed and accuracy, thereby ensuring the quality and consistency of the stripping. It can also be applied to cables of different diameters.

[0022] The present invention adopts the structure of a pressing sheet and a pressing block to fix the blade, so that the pressing sheet can be made very thin, reducing the influence of the pressing sheet thickness on the peeling effect. At the same time, the larger contact surface between the pressing sheet and the blade can effectively reduce the occurrence of blade breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the exterior structure of Example 1;

[0024] Figure 2 yes Figure 1 Schematic diagram of the structure after the transposon is hidden;

[0025] Figure 3 yes Figure 1 Schematic diagram of the assembly structure of the middle claw finger, blade, pressing sheet, pressing block and tightening bolt;

[0026] Figure 4 yes Figure 3 Schematic diagram of the cutaway structure;

[0027] Figure 5 yes Figure 1 Schematic diagram of the structure of the middle claw seat;

[0028] Figure 6 yes Figure 1 Schematic diagram of the structure of the middle claw finger;

[0029] Figure 7 yes Figure 1 Schematic diagram of the structure of the middle blade;

[0030] Figure 8 yes Figure 1 Schematic diagram of tablet pressing structure;

[0031] Fig. 9 yes Figure 1 Schematic diagram of the structure of the medium pressure block;

[0032] Among them, the transmission gear 1, the slider 2, the straight tooth surface 2a, the first bevel tooth surface 2b, the slide bar 2c, the clamping claw 3, the claw seat 3a, the second bevel tooth surface 3a1, the mounting groove 3a2, the claw finger 3b, the mounting surface 3b1, the groove 3b2, the notch 3b3, the blade 4, the through hole 4a, the blade 4b, the pressing piece 5, the protrusion 5a, the slot 5b, the first bevel 5c, the pressing block 6, the second bevel 6a, the clamping bolt 7, the chassis 8, the round hole 8a, the seat 9, the slide 9a, the handle 9b, the dial 10, the connecting rod 11, and the pinion 12. DETAILED DESCRIPTION

[0033] like Figure 1 , Figure 2 As shown, this embodiment includes a driving device, a transmission gear 1, a slider 2, a clamping claw 3, a blade 4, a pressing sheet 5, a pressing block 6 and a clamping bolt 7.

[0034] The driving device drives the transmission gear 1 to rotate. The driving device of this embodiment includes a driving motor and a driving gear. The output end of the driving motor is connected to the driving gear. The driving gear is meshed with the transmission gear 1. The driving motor drives the driving gear to rotate. The driving gear drives the transmission gear 1 to rotate. The driving motor can be a private motor or a stepping motor.

[0035] In order to facilitate fixing, the present embodiment further provides a chassis 8, on which the driving device and the driving gear are arranged. Furthermore, a sleeve may be provided on the chassis 8, and a bearing may be provided in addition, the bearing is sleeved on the sleeve, and the transmission gear 1 is sleeved on the bearing. This structure can also ensure the smoothness of the rotation of the transmission gear 1.

[0036] In this embodiment, the slider 2 is in the shape of a quadrangular prism, and a vertical surface of the slider 2 is provided with spur teeth, which is a spur tooth surface 2a. The spur tooth surface 2a meshes with the external teeth of the transmission gear 1 to form a tangent structure, and the transmission gear 1 can drive the slider 2 to slide back and forth along the tangent direction when it rotates left and right. A horizontal surface of the slider 2, that is, a surface of the slider 2 parallel to the end surface of the transmission gear 1, is provided with a first bevel tooth surface 2b, and the slider 2 is provided with three and evenly distributed on the outside of the transmission gear 1. In other embodiments, the slider 2 may also be in other shapes such as an octagonal prism.

[0037] like Figure 3-5 As shown, the clamping jaw 3 in this embodiment includes a claw seat 3a and a claw finger 3b. The bottom surface of the claw seat 3a is provided with a second bevel tooth surface 3a1, and the second bevel tooth surface 3a1 is meshed with the first bevel tooth surface 2b. When the slider 2 slides back and forth along the tangential direction, under the action of the first bevel tooth surface 2b and the second bevel tooth surface 3a1, the claw seat 3a can move back and forth along the radial direction of the transmission gear 1, that is, the movement direction of the claw seat 3a is perpendicular to the movement direction of the slider 2.

[0038] The claw finger 3b is detachably fixed on the claw seat 3a. Specifically, Figure 5 As shown, the top surface of the claw seat 3a, i.e., the fixing surface of the claw seat 3a and the claw finger 3b, is provided with a strip-shaped installation groove 3a2 with a "convex" cross section, and the length direction of the installation groove 3a2 is the same as the movement direction of the clamping jaw 3. A nut is provided in the wide groove of the installation groove 3a2, and the width of the nut is smaller than the narrow groove of the installation groove 3a2, so that the nut can be limited to slide back and forth only in the length direction of the installation groove 3a2. After the bolt passes through the claw finger 3b, it meshes and bites with the nut in the installation groove 3a2 to fix the claw finger 3b on the claw seat 3a. The advantage of this structure is that the front and rear positions of the claw finger 3b can be adjusted, that is, it can be adjusted for stripping cables of different thicknesses. Of course, in other embodiments, the clamping jaw 3 can also be set as a whole and only used to strip cables of one specification.

[0039] like Figure 6As shown, the end surface of the claw finger 3b facing the center of the transmission gear 1 is the mounting surface 3b1, and the mounting surface 3b1 is configured as an inwardly concave arc-shaped notch, and the mounting surface 3b1 is also provided with a strip-shaped groove 3b2, and at the same time, the top surface of the claw finger 3b is provided with a notch 3b3 that is perpendicular to and connected to the groove 3b2. In other embodiments, the notch 3b3 is also provided on the side of the claw finger 3b.

[0040] The mounting surface 3b1 is used to mount the blade 4. Therefore, in this embodiment, the blade 4 is in an arc shape corresponding to the shape of the mounting surface 3b1. Figure 7 As shown, the blade 4 is attached to the mounting surface 3b1, and a through hole 4a having the same shape as the groove 3b2 is provided at a position corresponding to the groove 3b2 on the blade 4, and a cutting edge 4b ​​is provided at the top of the blade 4. The three blades 4 form an annular channel, and the three cutting edges 4b coplanarly also form a ring.

[0041] like Figure 8 As shown, the pressing sheet 5 is used to fix the blade 4, so the pressing sheet 5 is also in an arc shape corresponding to the arc shape of the blade 4, and the pressing sheet 5 fits and presses the blade 4. The outer convex surface of the pressing sheet 5 extends a protrusion 5a outward, and the protrusion 5a corresponds to the shape of the groove 3b2. The protrusion 5a penetrates the through hole 4a and is inserted into the groove 3b2. A slot 5b is also provided on the top surface of the protrusion 5a, and the position of the slot 5b corresponds to the notch 3b3, that is, after the protrusion 5a is inserted into the groove 3b2, the slot 5b can be connected with the notch 3b3. An opening edge of the slot 5b is chamfered to form a first inclined surface 5c, and the first inclined surface 5c faces the notch 3b3.

[0042] like Fig. 9 As shown, the shape of the pressing block 6 corresponds to the slot 3b3, and the pressing block 6 is provided with a second inclined surface 6a corresponding to the first inclined surface 5c. After the pressing block 6 passes through the slot 3b3, it is inserted into the slot hole 5b and makes the second inclined surface 6a rest against the first inclined surface 5c. The second inclined surface 6a squeezes the first inclined surface 5c to enable the pressing piece 5 to press the blade 4, thereby fixing the blade 4 on the mounting surface 3b1.

[0043] like Figure 3 , Figure 4 As shown, the pressing block 6 and the sliding block 2 are fixed by a clamping bolt 7, and the clamping bolt 7 passes through the pressing block 6 and is threadedly engaged with the sliding block 2.

[0044] When in use, the cable is inserted into the annular channel formed by the three blades 4, and the driving device drives the transmission gear 1 to rotate. The rotation of the transmission gear 1 drives the slider 2 to move in the tangential direction. The movement of the slider 2 drives the clamping claw 3 to move in the radial direction of the transmission gear 1, thereby tightening the annular channel formed by the three blades 4. Since the outer sheath of the cable is made of flexible material, the part squeezed by the blades 4 will shrink, and then the cable can be pulled, and the outer sheath can be peeled off under the action of the blade 4b.

[0045] This embodiment uses a structure of a pressing sheet 5 and a pressing block 6 to fix the blade 4, so that the pressing sheet 5 can be made very thin, reducing the influence of the thickness of the pressing sheet 5 on the stripping effect. If the blade 4 is directly fixed to the mounting surface 3b1 by screws, the nut will press against the cable during stripping, greatly reducing the tightening effect of the blade 4. The fixing structure used in this embodiment can effectively avoid the influence of the thickness of the screw on the tightening effect of the blade 4. In addition, the pressing sheet 5 and the blade 4 have a large contact surface, which can effectively reduce the occurrence of the blade 4 breaking due to improper use.

[0046] In order to ensure the safety of use, the present embodiment further provides a seat 9, which is in the shape of a sleeve, and covers the slider 2, the transmission gear 1 and the claw seat 3a, and the seat 9 is fixed to the chassis 8. The seat 9 can cover the transmission structure to reduce the danger of use. Furthermore, the slider 2 is provided with a slide bar 2c at both ends of the movement direction, and the seat 9 is provided with a slideway 9a corresponding to the slide bar 2c. The slide bar 2c is arranged in the slideway 9a and can slide back and forth. The slider 2 is directly installed on the seat 9, and the seat 9 is effectively utilized, and all structures are integrated in the seat 9. Furthermore, in order to facilitate operation, two handles 9b are also provided on the side wall of the seat 9.

[0047] Furthermore, in this embodiment, a circular hole 8a is provided on the chassis 8, and the circular hole 8a corresponds to the circular channel formed by the three blades 4. When in use, the cable can directly pass through the circular hole 8a, so as to realize the function of peeling off the outer skin of any position of the cable.

[0048] Furthermore, the present embodiment further includes a dial 10, a connecting rod 11 and a pinion 12. The pinion 12 is meshed with the transmission gear 1, one end of the connecting rod 11 is connected to the pinion 12, and the other end of the connecting rod 11 is connected to the dial 10. The rotation position of the dial 10 can reflect the rotation angle of the transmission gear 1, and then calculate the shrinkage size of the blade 4, which plays a role in adjusting and controlling the cutting depth of the blade 4, and can effectively avoid the occurrence of electric field unevenness caused by damaging the main insulation using traditional stripping tools.

[0049] It should be noted that the top, bottom, vertical, horizontal and other azimuths described in this embodiment are all based on the Figure 1 For reference.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A special tool for stripping the semi-conductive layer of a cable, characterized in that: It includes a driving device, a transmission gear, a slide block, a clamping claw, a blade, a pressing sheet, a pressing block and a tightening bolt; The driving device drives the transmission gear to rotate; The slider is provided with a spur tooth surface, the slider is tangent to the transmission gear and the spur tooth surface is meshed with the transmission gear, and the rotation of the transmission gear can drive the slider to move along the tangential direction; the slider is parallel to the end face of the transmission gear and is provided with a first bevel tooth surface, and the slider is provided with three and evenly distributed on the outside of the transmission gear; The clamping jaw is provided with a second bevel tooth surface, which meshes with the first bevel tooth surface, so that the movement of the slider in the tangential direction can drive the clamping jaw to move in the radial direction of the transmission gear; the end surface of the clamping jaw facing the center of the transmission gear is the mounting surface; The mounting surface is in an arc-shaped notch shape, and a groove is provided on the mounting surface; a notch is provided on one surface of the clamping jaw and is perpendicular to and connected to the groove; The blade corresponds to the shape of the mounting surface, the blade is attached to the mounting surface, a through hole corresponding to the shape of the groove is provided on the blade, and one end of the blade is a cutting edge; Three blades form a circular channel; three blades form a circular ring; The pressing sheet corresponds to the shape of the blade, the pressing sheet is attached to the blade, a protrusion extends from the outer convex surface of the pressing sheet, the protrusion corresponds to the shape of the groove, the protrusion passes through the through hole and is inserted into the groove, the protrusion is also provided with a slot hole corresponding to the notch, and the slot hole is provided with a first inclined surface; The shape of the pressing block corresponds to the notch, and the pressing block is provided with a second inclined surface corresponding to the first inclined surface. After the pressing block passes through the notch, it is inserted into the slot hole and the second inclined surface is pressed against the first inclined surface. The second inclined surface presses the first inclined surface so that the pressing piece fixes the blade on the mounting surface. The clamping bolt passes through the clamping block and engages with the thread of the slider; The chassis is also provided; the driving device and the driving gear are arranged on the chassis; the chassis is provided with a circular hole, and the circular hole corresponds to the circular channel formed by the three blades; The chassis is provided with a sleeve; it also includes a bearing, the bearing is sleeved on the sleeve; the transmission gear is sleeved on the bearing.

2. A special tool for stripping the semi-conductive layer of a cable according to claim 1, characterized in that: The driving device comprises a driving motor and a driving gear; the output end of the driving motor is connected to the driving gear, and the driving gear is meshed with the transmission gear.

3. A special tool for stripping the semi-conductive layer of a cable according to claim 1, characterized in that: The utility model also comprises a seat; the seat is in the shape of a sleeve, covers the slider and the transmission gear, and is fixed to the chassis.

4. A special tool for stripping the semi-conductive layer of a cable according to claim 3, characterized in that: The slider is provided with slide bars at both ends of its moving direction; the seat is provided with slideways corresponding to the slide bars; and the slide bars can slide back and forth in the slideways.

5. A special tool for stripping the semi-conductive layer of a cable according to claim 3, characterized in that: The side wall of the seat is provided with a handle.

6. A special tool for stripping the semi-conductive layer of a cable according to claim 1, characterized in that: The clamping claw comprises a claw seat and a claw finger; the second oblique tooth surface is arranged on the claw seat; the mounting surface is arranged on the claw finger; the claw seat and the claw finger are detachably connected.

7. A special tool for stripping the semi-conductive layer of a cable according to claim 6, characterized in that: The fixing surfaces of the claw seat and the claw finger are provided with a strip-shaped installation groove with a "convex"-shaped cross section; a nut is provided in the wide groove of the installation groove, and the bolt penetrates the claw finger and engages with the nut in the installation groove to fix the claw finger on the claw seat.

8. A special tool for stripping the semi-conductive layer of a cable according to claim 1, characterized in that: It also includes a dial, a connecting rod and a pinion; the pinion is meshed with the transmission gear; one end of the connecting rod is connected to the pinion, and the other end of the connecting rod is connected to the dial.

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