Cable insulation stripping device

Abstract

The present invention is applicable to the field of cable processing equipment, and provides a cable insulation stripping device, comprising a symmetrically arranged positioning seat forming a support space in the middle and a cutting knife extending from an output end into the support space; positioning push plates forming a predetermined angle with the working surfaces of the two groups of positioning seats are arranged on the working surfaces of the two groups of positioning seats; when the equipment enters an extrusion state, the two groups of positioning seats move relative to each other, and their working surfaces cooperate with the positioning push plates to form an extrusion space, thereby, the present invention can produce an extrusion effect through the cooperation between the moving working surface of the positioning seat and the positioning push plate, and reset the state of the cable with an elliptical cross-section, so as to increase the cutting depth of the cutting knife on the cable insulation layer.

Description

Technical Field

[0001] The invention relates to the field of cable processing equipment, and in particular to a cable insulation stripping device. Background Art

[0002] For waste cables, stripping off the insulation layer is an important step in recycling, which is used to separate and classify the different materials contained in the cables (insulating rubber, metal core, etc.).

[0003] Existing cable stripping tools can be divided into hand-operated simple stripping tools and electric rotary cutters according to the hardness and thickness of the insulation layer. Electric rotary cutters can be divided into single-blade structure and double-blade structure according to the different positioning and number of cuts; the single-blade structure includes a double-cone positioning component and a cutter located in the middle of the two; and the double-blade structure replaces the double-cone positioning component with another set of cutters.

[0004] Whether it is a single-pole structure or a double-pole structure, only for cables that are not deformed (the cross section of the cable is a standard round Figure 1 The cable insulation layer is cut more completely during the processing, while the cable that has been deformed (for example, pressed) into an oval shape ( Figure 2 As shown in the figure, the cutting depth is insufficient and further manual tearing and separation is required, which makes the cable separation work inconvenient.

[0005] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0006] In view of the above-mentioned defects, the purpose of the present invention is to provide a cable insulation stripping device, which can produce an extrusion effect through the cooperation of the movable positioning seat working surface and the positioning push plate, and reset the state of the cable with an elliptical cross-section to increase the cutting depth of the cutting knife on the cable insulation layer.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a cable insulation stripping device, comprising a symmetrically arranged positioning seat forming a supporting space in the middle and a cutting knife extending from the output end into the supporting space; positioning push plates forming a predetermined angle with the working surfaces of the two groups of positioning seats are arranged on the working surfaces of the two groups of positioning seats; when the equipment enters the extrusion state, the two groups of positioning seats move relative to each other, and their working surfaces cooperate with the positioning push plates to form an extrusion space.

[0008] According to the cable insulation stripping device of the present invention, the working surface of the positioning seat is an inclined surface with a certain slope relative to the horizontal plane.

[0009] According to the cable insulation stripping device of the present invention, the positioning seat is a cone structure with a certain taper, which is installed on a first rotating shaft and is driven by a driver to rotate; the positioning seat is sleeved on the first rotating shaft, and the positioning seat is connected to the first rotating shaft through a key structure.

[0010] According to the cable insulation stripping device of the present invention, the cutting knife is a disc-shaped cutting knife, which is installed on the second rotating shaft; when working, the second rotating shaft drives the cutting knife to rotate.

[0011] According to the cable insulation stripping device of the present invention, the second rotating shaft is transmission-connected to the first rotating shaft via a gear structure.

[0012] According to the cable insulation stripping device of the present invention, the two groups of positioning seats are respectively driven by a driving structure to move relative to each other; the driving structure includes a fixed sleeve, an extending sleeve and a rotating sleeve which are sequentially arranged on the first rotating shaft from the inside to the outside; the end of the fixed sleeve is fixed to the frame and connected to the extending sleeve through a rotating positioning structure, so that the extending sleeve can only move along the axis of the fixed sleeve and the two cannot rotate relative to each other; an extending driving structure is arranged between the extending sleeve and the rotating sleeve, which drives the axis of the extending sleeve to move when the rotating sleeve rotates around the axis; the end of the extending sleeve abuts against the non-working end of the positioning seat.

[0013] According to the cable insulation stripping device of the present invention, the extension drive structure includes an inclined groove arranged on the outer wall of the extension sleeve and a protrusion arranged on the inner wall of the rotating sleeve and extending into the inclined groove.

[0014] According to the cable insulation stripping device of the present invention, the positioning seat is reset by a reset spring after losing external force; a space for accommodating the reset spring is provided inside the positioning seat, and a spring baffle is provided on the first rotating shaft; one end of the reset spring abuts against the spring baffle, and the other end abuts against the side wall of the space inside the positioning seat.

[0015] According to the cable insulation stripping device of the present invention, the working front end of the extrusion space is provided with a cable positioning assembly for driving the elliptical cross-section of the cable to be in a horizontal state; the cable positioning assembly includes a bracket connected to the frame and a pressure plate located above it and performing downward pressing work.

[0016] According to the cable insulation stripping device of the present invention, both ends of the pressing plate are connected to the connecting rod, and the connecting rod rotates around a predetermined position to realize the pressing work of the pressing plate; the end of the connecting rod is connected to the outer wall of the rotating sleeve.

[0017] The present invention provides a cable insulation stripping device, comprising a symmetrically arranged positioning seat forming a support space in the middle and a cutting knife whose output end extends into the support space; positioning push plates with a predetermined angle to the working surfaces of the two groups of positioning seats are arranged; when the equipment enters an extrusion state, the two groups of positioning seats move relative to each other, and their working surfaces cooperate with the positioning push plates to form an extrusion space. The positioning seat is a cone structure with a certain taper, which is installed on a first rotating shaft and rotated by a driver; the positioning seat is sleeved on the first rotating shaft, and the positioning seat is connected to the first rotating shaft through a key structure. The present invention can produce an extrusion effect through the cooperation of the movable positioning seat working surface and the positioning push plate, and reset the state of the cable with an elliptical cross-section to increase the cutting depth of the cutting knife on the cable insulation layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the state diagram of the current structure when the circular cross-section cable is cut;

[0019] Figure 2 This is the state diagram of the current structure elliptical cross-section cable when it is cut;

[0020] Figure 3 It is a schematic diagram of the structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the gear structure in the side state of the present application;

[0022] Figure 5 yes Figure 3 A front cross-sectional view of

[0023] Figure 6 yes Figure 5 A magnified view of part A;

[0024] Figure 7 yes Figure 5 Part C is a structural diagram of another embodiment;

[0025] Figure 8 yes Figure 5 A magnified view of the driving structure at part B in the middle;

[0026] Fig. 9 yes Figure 8 Structural diagram of dismantling the rotating sleeve;

[0027] Fig.10 It is a structural diagram of the fixed sleeve;

[0028] Fig.11 It is the matching diagram of the inclined groove and the protrusion;

[0029] In the figure, 00-cable, 1-positioning seat, 2-cutting knife, 3-positioning push plate, 4-first rotating shaft, 5-second rotating shaft, 6-reset spring, 7-spring baffle, 81-support seat, 82-pressure plate, 83-connecting rod, 41-fixed sleeve, 42-extending sleeve, 43-rotating sleeve, 411-bevel groove, 412-bump. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] See also Figure 3 The present invention provides a cable insulation stripping device, which includes a positioning seat 1 symmetrically arranged and forming a support space in the middle and a cutting knife 2 whose output end extends into the support space; in order to increase the support stability of the support space for the cable 00, the support space formed by the two groups of positioning seats 1 in the present application is set as a conical space (that is, the working surface of the positioning seat 1 is an inclined surface with a certain slope relative to the horizontal plane), and the positioning seat 1 can be a fixed structure (such as a fixed table, if a fixed table is used, it is necessary to add an auxiliary transmission structure for axial transmission of the cable) or as shown in this embodiment, the positioning seat 1 is a movable structure, specifically, the positioning seat 1 is a cone structure with a certain taper, which is installed on a first rotating shaft 4 and is driven by a driver (a rotating motor, not shown in the figure) to rotate. When working, the driver further drives the positioning seat 1 to rotate by driving the first rotating shaft 4. In this state, the positioning seat 1 not only plays a positioning effect but also realizes the transmission of the cable, and there is no need to add an auxiliary transmission structure.

[0032] The same cutting knife 2 can be set as a fixed structure (the cutting knife 2 is directly fixed to the frame) or a movable structure. For example, in this embodiment, the cutting knife 2 is a disc-shaped cutting knife installed on the second rotating shaft 5. When working, the second rotating shaft 5 drives the cutting knife 2 to rotate. The cutting knife 2 in a rotating state can reduce cutting resistance and optimize cutting effect.

[0033] Preferably, in order to simplify the setting of the driver and reduce the cost, the present application transmits the second rotating shaft 5 to the first rotating shaft 4 through a gear structure ( Figure 4 As shown in FIG. 1 , the gear structure includes a plurality of gears meshing with each other, wherein two sets of gears are coaxially mounted with the second rotating shaft 5 and the first rotating shaft 4. At this time, the driver drives the second rotating shaft 5 and the first rotating shaft 4 to rotate respectively.

[0034] The working surfaces of the two groups of positioning seats 1 are provided with positioning push plates 3 ( Figure 5 and7 As shown); when the cable with an elliptical cross-section is delivered to a predetermined position (the specific position will be described in detail below, and the monitoring of the position and the cable status here can be detected by human eyes or electronic visual monitoring), when the equipment enters the extrusion state, the two sets of positioning seats 1 move relative to each other, and their working surfaces cooperate with the positioning push plate 3 to form an extrusion space. Preferably, the inclined position of the positioning push plate 3 should be located between the vertical plane and the working surface of the positioning seat 1.

[0035] The two groups of positioning seats 1 move relative to each other, and the two groups of positioning push plates 3 cooperate with the working surface of the positioning seat 1 to achieve positioning and clamping of both sides of the cable with an elliptical cross-section. Figure 5 As shown in the figure, the working surface of the positioning seat 1 is used to contact the lower side (lower left side or lower right side) of the cable, and the corresponding positioning push plate 3 contacts the two sides or upper side (upper left side or upper right side) of the cable.

[0036] Under the above positioning, the two groups of positioning seats 1 can move relative to each other to achieve the shape reset of the cable with an elliptical cross-section, reduce the cable b-axis distance, and increase the a-axis distance ( Figure 5 As shown in FIG. 1 ), the elliptical cross section is reset to a perfect circular cross section to increase the cutting depth of the cutting knife 2 for the cable insulation layer.

[0037] See also Figure 3 Preferably, the working front end of the extrusion space is provided with a cable positioning component that drives the elliptical cross section of the cable to be in a horizontal state; the cable positioning component is used to position the state of the cable before extrusion, so that the longer b-axis of the elliptical cross section is in a horizontal state, and the shorter a-axis is in a vertical state. In this state, the adaptability with the above-mentioned extrusion component (the extrusion space formed by the working surface of the positioning seat 1 and the positioning push plate 3) is increased, avoiding the phenomenon of incorrect positioning of the extrusion component, resulting in the inability to reset the cable.

[0038] See also Figure 3 and Figure 4 The cable positioning assembly includes a bracket 81 fixed to the frame and a pressing plate 82 located above the bracket 81 for pressing down. The predetermined downward pressure (the downward pressure does not need to be too large) generated by the pressing plate 82 can press the cable with an elliptical cross section in an inclined state (the b axis and the a axis are in the inclined direction) to the above-mentioned horizontal state ( Figure 5 As shown), on the other hand, the cable with a longitudinal elliptical cross-section (the longer b-axis is in a vertical state, and the shorter a-axis is in a horizontal state) can be pressed and reset to a perfect circular cross-section state.

[0039] Specifically, the two groups of positioning seats 1 are respectively driven by a driving structure to move relative to each other; the positioning seat 1 is sleeved on the first rotating shaft 4 ( Figure 4As shown), the positioning seat 1 is connected to the first rotating shaft 4 through a key structure (such as a spline) to form rotational positioning (the positioning seat 1 only moves axially relative to the first rotating shaft 4, and the two cannot rotate relative to each other).

[0040] The driving structure includes a fixed sleeve 41, an extended sleeve 42 and a rotating sleeve 43 which are sequentially mounted on the first rotating shaft 4 from the inside to the outside. Figure 8 The end of the fixed sleeve 41 is fixed to the frame and connected to the extended sleeve 42 through a rotation positioning structure so that the extended sleeve 42 can only move along the axis of the fixed sleeve 41 and the two cannot rotate relative to each other; the positioning structure is such as a common key structure or a spline structure ( Fig.10 as shown).

[0041] An extension drive structure is provided between the extension sleeve 42 and the rotating sleeve 43, which drives the extension sleeve 42 to move along its axis when the rotating sleeve 43 rotates about its axis; the end of the extension sleeve 42 abuts against the non-working end (the bottom of the cone structure) of the positioning seat 1. The extension drive structure includes an inclined groove 411 provided on the outer wall of the extension sleeve 42 (the inclined groove 411 can be a partial spiral groove, and the rotation direction of the corresponding partial spiral groove is different according to the different moving directions of the positioning seat 1, Fig. 9 ) and a protrusion 412 (shown) disposed on the inner wall of the rotating sleeve 43 and extending into the inclined groove 411 Fig.11 As shown in FIG. 4 ), the inclined groove 411 can convert the rotation effect of the rotating sleeve 43 into the movement effect of the extending sleeve 42.

[0042] See also Figure 5 and Figure 6 After losing the external force, the positioning seat 1 will be reset under the action of a reset spring 6; a space for accommodating the reset spring 6 is provided inside the positioning seat 1, and a spring baffle 7 is provided on the first rotating shaft 4; one end of the reset spring 6 abuts against the spring baffle 7, and the other end abuts against the side wall of the inner space of the positioning seat 1.

[0043] When working, when the cable with an elliptical cross section is transferred to the compression area formed by the cable positioning assembly, the positioning seat 1 switches its state. Since the cable positioning assembly is in a non-working state under normal conditions (the cable is in a perfect circular cross section state), when the cable is detected to have an elliptical cross section area, the cable positioning assembly enters a working state.

[0044] Based on the above, in order to improve the working synchronization between the cable positioning assembly and the positioning seat 1, the present application configures the two into a linkage structure.

[0045] Specifically, both ends of the pressing plate 82 are connected to the connecting rod 83, and the connecting rod 83 rotates around a predetermined position to realize the pressing work of the pressing plate 82; the end of the connecting rod 83 is connected to the outer wall of the rotating sleeve 43. When the connecting rod 83 is rotated by hand or an external rotating driver (a rotating motor is sufficient, and the specific connection structure is relatively simple, such as a gear connection, which is not described in detail in this application) drives the cable positioning assembly to work, it will further drive the state switching of the positioning seat 1.

[0046] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A cable insulation stripping device, characterized in that: It includes a positioning seat which is symmetrically arranged and forms a supporting space in the middle, and a cutting knife whose output end extends into the supporting space; The working surfaces of the two groups of positioning seats are provided with positioning push plates which form a predetermined angle with the working surfaces; When the equipment enters the extrusion state, the two sets of positioning seats move relative to each other, and their working surfaces cooperate with the positioning push plates to form an extrusion space; The positioning seat is a cone structure with a certain taper, which is installed on a first rotating shaft and is driven by a driver to rotate; The positioning seat is sleeved on the first rotating shaft, and the positioning seat is connected to the first rotating shaft through a key structure; The two groups of positioning seats are respectively driven by a driving structure to move relative to each other; The driving structure comprises a fixed sleeve, an extending sleeve and a rotating sleeve which are sequentially sleeved on the first rotating shaft from the inside to the outside; The end of the fixed sleeve is fixed to the frame and connected to the extended sleeve through a rotation positioning structure, so that the extended sleeve can only move along the axis of the fixed sleeve and the two cannot rotate relative to each other; An extension drive structure is provided between the extension sleeve and the rotating sleeve, and drives the axis of the extension sleeve to move when the rotating sleeve rotates around the axis; The end of the extending sleeve abuts against the non-working end of the positioning seat.

2. The cable insulation stripping device according to claim 1, characterized in that: The working surface of the positioning seat is an inclined surface with a certain slope relative to the horizontal plane.

3. The cable insulation stripping device according to claim 1, characterized in that: The cutting knife is a disc-shaped cutting knife, which is installed on the second rotating shaft; when working, the second rotating shaft drives the cutting knife to rotate.

4. The cable insulation stripping device according to claim 3, characterized in that: The second rotating shaft is transmission-connected to the first rotating shaft via a gear structure.

5. The cable insulation stripping device according to claim 1, characterized in that: The outward extension driving structure comprises an inclined groove arranged on the outer wall of the outward extension sleeve and a protrusion arranged on the inner wall of the rotating sleeve and extending into the inclined groove.

6. The cable insulation stripping device according to claim 1 or 5, characterized in that: The positioning seat is reset by a reset spring after the external force is lost; The positioning seat is provided with a space for accommodating a return spring, and the first rotating shaft is provided with a spring baffle; One end of the return spring abuts against the spring baffle, and the other end abuts against the side wall of the inner space of the positioning seat.

7. The cable insulation stripping device according to claim 1, characterized in that: The working front end of the extrusion space is provided with a cable positioning assembly for driving the elliptical cross section of the cable to be in a horizontal state; The cable positioning assembly comprises a bracket connected to the frame and a pressing plate located above the bracket and performing a pressing operation.

8. The cable insulation stripping device according to claim 7, characterized in that: The two ends of the pressing plate are connected to the connecting rod, and the connecting rod rotates around a predetermined position to realize the pressing work of the pressing plate; The end of the connecting rod is connected to the outer wall of the rotating sleeve.

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