CN215825356U - Feeder cutter - Google Patents

Abstract

The utility model discloses a feeder line cutting knife which comprises a first knife body, a second knife body and a connecting body, wherein the first knife body and the second knife body are connected in a crossed and rotating mode through the connecting body, the first knife body comprises a first clamping part and a first cutting part, the first cutting part extends from the connecting body to the direction far away from the first clamping part, a first inner conductor cutting part, a first outer conductor and insulating layer cutting part and a first outer sheath cutting part are sequentially arranged at intervals, the second cutting part extends from the connecting body to the direction far away from the second clamping part, and a second inner conductor cutting part, a second outer conductor and insulating layer cutting part and a second outer sheath cutting part which are respectively opposite to the first inner conductor cutting part, the first outer conductor and insulating layer cutting part and the first outer sheath cutting part are sequentially arranged at intervals. The feeder cutter integrates the cutting functions of the inner conductor, the insulating layer, the outer conductor and the outer sheath, is convenient to connect with working procedures and standards, and can conveniently and efficiently cut and manufacture a feeder head.

Description

Feeder cutter

Technical Field

The utility model relates to the field of machinery, in particular to a feeder line cutter.

Background

In communication systems, it is necessary to use feeders, which have a specific structure. Referring to fig. 1, the feeder 9 generally includes, in order from inside to outside, an inner conductor 91, an insulating layer (not shown), an outer conductor 92, and an outer sheath 93. In the outdoor and tunnel mouth feeder distribution construction process of a communication system, manual crawling ladders are mostly adopted for hanging leaky cable and manufacturing feeder connectors. When the feeder line joint is manufactured at high altitude, the problems of long construction operation time and large danger coefficient of personnel working at high altitude caused by inconvenience of personnel construction, multiple construction tools and the like directly cause consumption of manpower and financial resources and low efficiency. Due to the fact that various different tools are combined, the construction quality is unstable directly caused by the fact that in the construction process, personnel mobility is large, the process method for manufacturing the feeder line connector is different, the finished end contact effect is not good, and the like, and therefore the operation of follow-up equipment and signal propagation are seriously affected. With the continuous promotion of engineering construction, the requirements of a process construction method are continuously improved, higher requirements are provided for the construction process and quality of the end of the feeder line, and the traditional construction mode cannot meet the requirements of site construction.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides an integrated feeder line cutter, and aims to solve the problems that a plurality of tools are required to be carried in the construction of a common feeder line cutter, the operation difficulty is high, the end forming effect is not uniform, and the like.

Therefore, the embodiment of the utility model provides the following technical scheme:

a feeder line cutting knife comprises a first knife body, a second knife body and a connecting body, wherein the first knife body and the second knife body are connected in a crossed and rotating mode through the connecting body, the first knife body comprises a first clamping portion and a first cutting portion, the first clamping portion and the first cutting portion are arranged on different sides of the connecting body, the second knife body comprises a second clamping portion and a second cutting portion, the second clamping portion and the second cutting portion are arranged on different sides of the connecting body, the first clamping portion and the second clamping portion are arranged on the same side of the connecting body, the first cutting portion and the second cutting portion are arranged on the same side of the connecting body, the first cutting portion extends from the connecting body in the direction far away from the first clamping portion, and a first inner conductor cutting portion, a first outer conductor, an insulating layer cutting portion and a first outer sheath cutting portion are sequentially arranged at intervals, the second cutting part extends from the connecting body to the direction far away from the second clamping part, and is sequentially provided with a second inner conductor cutting part, a second outer conductor and insulating layer cutting part and a second outer sheath cutting part at intervals, wherein the second inner conductor cutting part, the first outer conductor and insulating layer cutting part and the first outer sheath cutting part are respectively opposite.

Furthermore, the first inner conductor cutting part and the second inner conductor cutting part are respectively provided with a first inner conductor cutting knife and a second inner conductor cutting knife which are opposite, the first outer conductor and insulating layer cutting part and the second outer conductor and insulating layer cutting part are respectively provided with a first outer conductor and insulating layer cutting knife and a second outer conductor and insulating layer cutting knife which are opposite, and the first outer sheath cutting part and the second outer sheath cutting part are respectively provided with a first outer sheath cutting knife and a second outer sheath cutting knife which are opposite.

Further, the first inner conductor cutting part and the second inner conductor cutting part are respectively provided with a first inner conductor cutting knife and a second inner conductor cutting knife which are opposite, the first outer conductor and insulating layer cutting part and the second outer conductor and insulating layer cutting part are respectively provided with a first outer conductor and insulating layer cutting knife, a second outer conductor and insulating layer cutting knife which are opposite, the first outer conductor and insulating layer cutting part and the second outer conductor and insulating layer cutting part are respectively provided with a first outer conductor and insulating layer clamping part and a second outer conductor and insulating layer clamping part which are opposite, the first outer sheath cutting part and the second outer sheath cutting part are respectively provided with a first outer sheath cutting knife and a second outer sheath cutting knife which are opposite, and the first outer sheath cutting part and the second outer sheath cutting part are respectively provided with a first outer sheath clamping part and a first outer sheath clamping part which are opposite, A second outer jacket clamp.

Furthermore, the first outer conductor and insulating layer clamping part, the second outer conductor and insulating layer clamping part are respectively provided with a first groove with an arc-shaped cross section and a second groove with an arc-shaped cross section, the first outer conductor and insulating layer cutting knife, the second outer conductor and insulating layer cutting knife are respectively arranged at the bottoms of the first groove and the second groove, the first outer sheath clamping part and the second outer sheath clamping part are respectively provided with a third groove with an arc-shaped cross section and a fourth groove with an arc-shaped cross section, and the first outer sheath cutting knife and the second outer sheath cutting knife are respectively arranged at the bottoms of the third groove and the fourth groove.

Further, the radiuses of the arc-shaped parts of the first groove and the second groove are both r1, the radiuses of the arc-shaped parts of the third groove and the fourth groove are both r2, and r2> r1> 0.

Furthermore, the connecting body is a rotating shaft, round holes are respectively formed in the first cutter body and the second cutter body, and the rotating shaft penetrates through the round holes to be rotatably connected with the first cutter body and the second cutter body.

Furthermore, the cutting edges of the first inner conductor cutting knife, the second inner conductor cutting knife, the first outer conductor and insulating layer cutting knife, the second outer conductor and insulating layer cutting knife, the first outer sheath cutting knife and the second outer sheath cutting knife are all parallel to each other and are parallel to the axis of the rotating shaft.

Further, when the top of the first groove is in contact with the top of the second groove and/or the top of the third groove is in contact with the fourth groove, the distance between the first clamping portion and the second clamping portion reaches a minimum value, the distance between the first inner conductor cutter edge and the second inner conductor cutter edge is d1, the distance between the first outer conductor and insulating layer cutter edge and the distance between the second outer conductor and insulating layer cutter edge are d2, the distance between the first outer sheath cutter edge and the second outer sheath cutter edge is d3, and at this time, d3> d2> d1> 0.

Further, the first cutting part and/or the second cutting part are/is fixedly connected with a polishing and reaming device, and the polishing and reaming device comprises a main body part, a blind hole which is arranged on the main body part and is provided with a built-in file at the bottom, an outward protruding type vertical-cone hole expanding device which is close to the blind hole, and a grab rail which is connected to the main body part.

Further, a reset piece is arranged between the first clamping part and the second clamping part, and the reset piece includes, but is not limited to, the following components: a spring or a leaf spring or a magnet.

According to the technical scheme of the utility model, the feeder cutter integrates the cutting functions of the inner conductor, the insulating layer, the outer conductor and the outer sheath, is convenient to connect with the working procedures and the standards, and can conveniently and efficiently cut and manufacture the feeder head.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the utility model. For purposes of illustrating and describing some portions of the present invention, corresponding parts may be exaggerated in the drawings, i.e., made larger relative to other components in an exemplary apparatus actually manufactured according to the present invention. In the drawings, the same or similar technical features or components will be denoted by the same or similar reference numerals.

Fig. 1 is a schematic view of a feeder structure according to the present invention.

Fig. 2 is a schematic diagram of a relative position relationship between a cutter and a feeder line when the feeder line cutter of the embodiment of the present invention works.

Fig. 3 is a schematic front view of a feeder cutter blade of an embodiment of the present invention.

Fig. 4 is a schematic top view of a feeder cutter blade of an embodiment of the present invention.

Fig. 5 is a schematic side view of a feeder cutter blade of an embodiment of the present invention.

Fig. 6 is a schematic view of a first outer conductor and insulation layer clamping portion, a second outer conductor and insulation layer clamping portion of the feeder line cutter according to the embodiment of the present invention.

Fig. 7 is a schematic view of a first outer sheath clamping portion and a second outer sheath clamping portion of a feeder line cutter according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 2 to 5, in one embodiment of the present invention, an integrated feeder cutter 8 includes a first cutter body 1, a second cutter body 2, and a connecting body 3, the first cutter body 1 and the second cutter body 2 are cross-rotatably connected by the connecting body 3, the first cutter body 1 includes a first clamping portion 11 and a first cutting portion 12, the first clamping portion 11 and the first cutting portion 12 are disposed at opposite sides of the connecting body 3, the second cutter body 2 includes a second clamping portion 21 and a second cutting portion 22, the second clamping portion 21 and the second cutting portion 22 are disposed at opposite sides of the connecting body 3, the first clamping portion 11 and the second clamping portion 21 are disposed at the same side of the connecting body 3, the first cutting portion 12 and the second cutting portion 22 are disposed at the same side of the connecting body 3, the first cutting portion 12 extends from the connecting body 3 in a direction away from the first clamping portion 11, a first inner conductor cutting portion 121, a first outer conductor and insulation layer cutting portion 122, and a first outer sheath cutting portion 123 are sequentially disposed at intervals, the second cutting portion 22 extends from the connecting body 3 in a direction away from the second clamping portion 21, and is sequentially provided with a second inner conductor cutting portion 221, a second outer conductor and insulation layer cutting portion 222, and a second outer sheath cutting portion 223 at intervals, which are respectively opposite to the first inner conductor cutting portion 121, the first outer conductor and insulation layer cutting portion 122, and the first outer sheath cutting portion 123.

When the feeder line cutting knife of the utility model works, one end of the feeder line is inserted into the knife, so that the alignment position of the top of the feeder line is opposite to the first cutting part 12 and the second cutting part 22, the first clamping part 11 and the second clamping part 21 are extruded forcefully and rotated, then the feeder line is pulled out, the inner conductor of the feeder line is exposed, then the exposed inner conductor is inserted to the position of the knife connecting body 3, then the first clamping part 11 and the second clamping part 21 are squeezed forcefully and rotated, and then the feeder line is pulled out, at the moment, the first inner conductor cutting part 121 and the second inner conductor cutting part 221 of the feeder line cutting knife, the first outer conductor and insulating layer cutting part 122 and the second outer conductor and insulating layer cutting part 222, the first outer sheath cutting part 123 and the second outer sheath cutting part 223 respectively cut the inner conductor, the outer conductor and insulating layer of the feeder line and the outer sheath of the feeder line, and the cutting of the feeder line can be simply and conveniently realized by adopting a tool, because need not to use multiple instrument cooperation use, relevant size can be according to fixed settings such as standard solidify to the cutting knife on, can guarantee the stability of cutting quality and one-tenth end effect.

In some embodiments, referring to fig. 2-5, the first inner conductor cutting portion 121 and the second inner conductor cutting portion 221 are respectively provided with a first inner conductor cutter 1211 and a second inner conductor cutter 2211, the first outer conductor and insulation layer cutting portion 122 and the second outer conductor and insulation layer cutting portion 222 are respectively provided with a first outer conductor and insulation layer cutter 1221 and a second outer conductor and insulation layer cutter 2221, and the first outer sheath cutting portion 123 and the second outer sheath cutting portion 223 are respectively provided with a first outer sheath cutter 1231 and a second outer sheath cutter 2231. In this embodiment, each cutting portion all sets up the relative cutting knife of cutting, under the fixed of external feed line centre gripping work, can adapt to the cutting of the feeder of different diameters.

In some embodiments, referring to fig. 2-7, the first inner conductor cutting portion 121 and the second inner conductor cutting portion 221 are respectively provided with a first inner conductor cutter 1211 and a second inner conductor cutter 2211, the first outer conductor and insulation layer cutting portion 122 and the second outer conductor and insulation layer cutting portion 222 are respectively provided with a first outer conductor and insulation layer cutter 1221 and a second outer conductor and insulation layer cutter 2221, the first outer conductor and insulation layer cutting portion 122 and the second outer conductor and insulation layer cutting portion 222 are respectively provided with a first outer conductor and insulation layer clamping portion 1222 and a second outer conductor and insulation layer clamping portion 2222, the first outer sheath cutting portion 123 and the second outer sheath cutting portion 223 are respectively provided with a first outer sheath cutter 1231 and a second outer sheath cutter 2231, the first outer sheath cutting portion 123 and the second outer sheath cutting portion 223 are respectively provided with a first outer sheath clamping portion 1232, a second outer sheath clamping portion 2222, a second outer sheath clamping portion, and a second outer sheath clamping portion are respectively provided, A second outer jacket grip 2232. In this embodiment, the setting of clamping part can make the feeder more stable fixed, guarantees cutting quality and precision.

In some embodiments, referring to fig. 2-7, the first outer conductor and insulation layer clamping portion 1222 and the second outer conductor and insulation layer clamping portion 2222 are respectively provided with a first groove 12221 and a second groove 22221 having arc-shaped cross sections, the first outer conductor and insulation layer cutting knife 1221 and the second outer conductor and insulation layer cutting knife 2221 are respectively provided at the bottom of the first groove 12221 and the second groove 22221, the first outer sheath clamping portion 1232 and the second outer sheath clamping portion 2232 are respectively provided with a third groove 12321 and a fourth groove 22321 having arc-shaped cross sections, and the first outer sheath cutting knife 1231 and the second outer sheath cutting knife 2231 are respectively provided at the bottom of the third groove 12321 and the fourth groove 22321. It should be noted that, as will be understood by those skilled in the art, the arc of the arc-shaped groove is less than 180 degrees, i.e., the arc does not exceed a half circle. The arc-shaped groove is adopted, the manufacturing is simple, the shape of the groove is matched with the appearance of the cylindrical feeder line, and the feeder line is convenient to fix and clamp.

In some embodiments, referring to fig. 2-7, the radii of the arcuate portions of the first groove 12221 and the second groove 22221 are both r1, the radii of the arcuate portions of the third groove 12321 and the fourth groove 22321 are both r2, and r2> r1> 0. The radius size relation is set, so that the two grooves can effectively play a role in fixing and clamping.

In some embodiments, the connecting body 3 is a rotating shaft, and the first cutter body 1 and the second cutter body 2 are respectively provided with a circular hole, and the rotating shaft passes through the circular holes to rotatably connect the first cutter body 1 and the second cutter body 2. The rotating connection mode that the rotating shaft penetrates through the round hole is adopted, the manufacturing is simple, and the operation is reliable.

In some embodiments, the edges of the first inner conductor cutter 1211, the second inner conductor cutter 2211, the first outer conductor and insulation layer cutter 1221, the second outer conductor and insulation layer cutter 2221, the first outer sheath cutter 1231, and the second outer sheath cutter 2231 are all parallel to each other and to the axis of the shaft. Under the condition that the cutting edges are parallel to each other and the axis of the rotating shaft, the inner conductor, the outer conductor, the insulating layer and the outer sheath of the feeder line can be cut at one time.

In some embodiments, when the top of the first groove 12221 contacts the top of the second groove 22221 and/or the top of the third groove 12321 contacts the fourth groove 22321, the distance between the first grip portion 11 and the second grip portion 21 reaches a minimum value, at which time the distance between the edges of the first inner conductor cutter 1211 and the second inner conductor cutter 2211 is d1, the distance between the edges of the first outer conductor and insulation cutter 1221, the second outer conductor and insulation cutter 2221 is d2, the distance between the edges of the first outer sheath cutter 1231 and the second outer sheath cutter 2231 is d3, at which time d3> d2> d1> 0. d1>0 can ensure that the cutting edges of the inner conductor do not collide when the cutting knife of the cutting knife is at the maximum position, and the cutting edges are protected. The top of the groove has the function of limiting protection.

In some embodiments, a grinding and reaming device 4 is fixedly connected to the first cutting portion 12 and/or the second cutting portion 22, and the grinding and reaming device 4 includes a main body 41, a blind hole 42 provided on the main body 41 and having a built-in file at the bottom, a protruding vertical hole expander 43 near the blind hole 42, and a grab bar 44 connected to the main body 41. The inner conductor polishing and hole widening work can be conveniently carried out after the cutting by arranging the fixedly connected polishing and hole expanding device, the integrated feeder head is manufactured, and the types of tools are reduced.

In some embodiments, a reset element 5 is disposed between the first clamping portion 11 and the second clamping portion 21, and the reset element 5 includes, but is not limited to, a spring or a spring plate or a magnet. The reset piece is arranged, so that automatic reset is facilitated, and the labor intensity and the complex burden of operation are reduced.

In the specific application process, the integrated feeder cutter integrates the cutting functions of the inner conductor, the insulating layer, the outer conductor and the outer sheath, is convenient to link with the working procedures and standards, and can conveniently and efficiently cut and manufacture a feeder head. The integrated feeder line cutting knife is simple to manufacture, simple and convenient to use, low in cost and convenient to popularize; the feeder line head is less in manufacturing time, labor input can be reduced, and the problem that various tools are not changed when the outdoor tunnel portal is operated at high altitude is solved; the method is beneficial to the unification of the manufacturing process of the feeder heads, reduces the transmission loss of signals, greatly saves the labor intensity of workers and improves the construction efficiency.

It will be appreciated by those skilled in the art that the above description does not constitute a limitation of the device or structure and may include more or less components or a combination of certain components or an arrangement of different components.

It should be noted that the terms "first" and "second" in the description of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising" is used to specify the presence of stated elements, but not to preclude the presence or addition of additional like elements in a process, method, article, or apparatus that comprises the stated elements. All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. The above description is only an example of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention. In the foregoing description of specific embodiments of the utility model, features described and/or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, in combination with or instead of the features of the other embodiments.

In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components. The terms "a," "an," "two," "1," "2," "n-1," and the like, as they relate to ordinal numbers, do not necessarily denote the order of execution or importance of the features, elements, steps, or components identified by the terms, but are used merely for identification among the features, elements, steps, or components for clarity of description.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope defined by the appended claims.

Claims (10)

1. A feeder line cutting knife (8) is characterized by comprising a first knife body (1), a second knife body (2) and a connecting body (3),

the first cutter body (1) and the second cutter body (2) are in cross rotating connection through the connecting body (3),

the first cutter body (1) comprises a first clamping part (11) and a first cutting part (12), the first clamping part (11) and the first cutting part (12) are arranged on the opposite sides of the connecting body (3),

the second cutter body (2) comprises a second clamping part (21) and a second cutting part (22), the second clamping part (21) and the second cutting part (22) are arranged on the opposite sides of the connecting body (3),

the first clamping part (11) and the second clamping part (21) are arranged on the same side of the connecting body (3), the first cutting part (12) and the second cutting part (22) are arranged on the same side of the connecting body (3),

the first cutting part (12) extends from the connecting body (3) to the direction far away from the first clamping part (11), and is sequentially provided with a first inner conductor cutting part (121), a first outer conductor and insulating layer cutting part (122) and a first outer sheath cutting part (123) at intervals,

the second cutting part (22) extends from the connecting body (3) to a direction far away from the second clamping part (21), and a second inner conductor cutting part (221), a second outer conductor and insulating layer cutting part (222) and a second outer sheath cutting part (223) which are respectively opposite to the first inner conductor cutting part (121), the first outer conductor and insulating layer cutting part (122) and the first outer sheath cutting part (123) are sequentially arranged at intervals.

2. The feeder cutter as claimed in claim 1, wherein the first inner conductor cutter (1211) and the second inner conductor cutter (221) are provided with a first inner conductor cutter (1211) and a second inner conductor cutter (2211) which are opposite to each other,

the first outer conductor and insulating layer cutting part (122) and the second outer conductor and insulating layer cutting part (222) are respectively provided with a first outer conductor and insulating layer cutting knife (1221) and a second outer conductor and insulating layer cutting knife (2221) which are opposite,

the first outer sheath cutting part (123) and the second outer sheath cutting part (223) are respectively provided with a first outer sheath cutting knife (1231) and a second outer sheath cutting knife (2231) which are opposite to each other.

3. The feeder cutter of claim 2, wherein the first outer conductor and insulation layer cutting portion (122) and the second outer conductor and insulation layer cutting portion (222) are further provided with a first outer conductor and insulation layer clamping portion (1222) and a second outer conductor and insulation layer clamping portion (2222) which are opposite to each other,

the first outer sheath cutting part (123) and the second outer sheath cutting part (223) are further provided with a first outer sheath clamping part (1232) and a second outer sheath clamping part (2232) which are opposite to each other.

4. The feeder cutter as claimed in claim 3, wherein the first outer conductor and insulation layer clamping portion (1222), the second outer conductor and insulation layer clamping portion (2222) are respectively provided with a first groove (12221) with an arc-shaped cross section and a second groove (22221) with an arc-shaped cross section, the first outer conductor and insulating layer cutting knife (1221) and the second outer conductor and insulating layer cutting knife (2221) are arranged at the bottom of the first groove (12221) and the second groove (22221), the first outer sheath clamping part (1232) and the second outer sheath clamping part (2232) are respectively provided with a third groove (12321) and a fourth groove (22321) which are opposite and have arc-shaped cross sections, the first outer sheath cutting knife (1231) and the second outer sheath cutting knife (2231) are arranged at the bottom of the third groove (12321) and the bottom of the fourth groove (22321).

5. The feeder cutter of claim 4, wherein the arcuate portions of the first and second grooves (12221, 22221) are all r1, and the arcuate portions of the third and fourth grooves (12321, 22321) are all r2, r2> r1> 0.

6. The feeder cutting knife according to claim 5, characterized in that the connecting body (3) is a rotating shaft, and the first knife body (1) and the second knife body (2) are respectively provided with a circular hole, and the rotating shaft penetrates through the circular holes to rotatably connect the first knife body (1) and the second knife body (2).

7. The feeder cutter of claim 6, wherein the edges of the first inner conductor cutter (1211), the second inner conductor cutter (2211), the first outer conductor and insulation layer cutter (1221), the second outer conductor and insulation layer cutter (2221), the first outer jacket cutter (1231), and the second outer jacket cutter (2231) are all parallel to each other and to the axis of the shaft.

8. The feeder cutter of claim 7, wherein the distance between the first grip (11) and the second grip (21) is minimal when the top of the first groove (12221) is in contact with the top of the second groove (22221) and/or when the top of the third groove (12321) is in contact with the top of the fourth groove (22321), when the distance between the first inner conductor cutter (1211) and the second inner conductor cutter (2211) is d1, when the distance between the first outer conductor and insulation cutter (1221) and the second outer conductor and insulation cutter (2221) is d2, when the distance between the first outer sheath cutter (1231) and the second outer sheath cutter (2231) is d3, when d3> d2> d1> 0.

9. The feeder cutting knife according to claim 1, characterized in that a grinding and reaming device (4) is fixedly connected to the first cutting part (12) and/or the second cutting part (22), and the grinding and reaming device (4) comprises a main body part (41), a blind hole (42) which is arranged on the main body part (41) and provided with a built-in file at the bottom, an outward convex vertical-cone-shaped hole-widening device (43) which is close to the blind hole (42), and a handrail rod (44) which is connected to the main body part (41).

10. A feeder cutter as claimed in any one of claims 1 to 9, wherein a reset member (5) is provided between the first clamping portion (11) and the second clamping portion (21), the reset member (5) including but not limited to the following:

a spring or a leaf spring or a magnet.

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