Double-slide-rail optical fiber cutting knife

Abstract

The utility model discloses a double-slide-rail optical fiber cutting knife, which comprises a shell, a sliding seat and two slide rails, the two slide rails are fixed in the shell in parallel, two through holes are arranged on the sliding seat, the two slide rails respectively penetrate through the two through holes, copper sleeves are arranged in the through holes, and the copper sleeves are fixed on the sliding seat. The copper sleeve is arranged on the outer side of the sliding rail in a sleeving mode and is in sliding fit with the sliding rail, a cutting tool bit is arranged on the top of the sliding base, a push block extending out of the shell is arranged on the side portion of the sliding base, and a sliding base spring used for driving the sliding base to slide forwards is arranged in the shell. The cutting device has the characteristics of simple structure, low cost, high cutting precision and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber cutting device especially relates to a double slide rail optical fiber cutting knife. BACKGROUND

[0002] The optical fiber cutting knife is used, first utilizes the gland and the bottom shell and clamps the optical fiber, then pushes the cutter head movement, utilizes the cutter head and cuts off the optical fiber, needs to keep the cutting surface neat in the cutting process, this requires that the sliding track of cutter head is straight, for this, the prior art adopts the structure of lateral slide rail assembly to make the cutter head slide forward and backward, the relevant structure please refer to the Chinese patent publication document with the publication number CN114043554A, the name is "a one-step optical fiber cutting knife and optical fiber cutting method", it installs the cutting slide rail on the slide rail base, thereby forming the slide rail assembly, this slide rail assembly needs to rely on the slide rail itself, slide rail seat, base and other structures to combine, not only the structure is complex, and the application cost is higher, in addition, the slide rail assembly of existing optical fiber cutting knife is located at the position of cutter head deviation one side, such as the patent document of publication number CN114043554A's appendix Figure 2 When the cutter head cuts the optical fiber, the reaction force is not vertically loaded on the slide rail assembly, but is inclined to the slide rail assembly, which is easy to cause the cutter head to be slightly inclined under stress, and then affect the cutting precision of the optical fiber. UTILITY MODEL CONTENT

[0003] The utility model solves the technical problem in prior art, provides a double slide rail optical fiber cutting knife that has simple structure, low cost and high cutting precision.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme.

[0005] A double slide rail optical fiber cutting knife comprises a shell, a slide base and two slide rails, the two slide rails are fixed in the shell in parallel with each other, the slide base is provided with two through holes, the two slide rails pass through the two through holes respectively, a copper sleeve is arranged in each through hole, the copper sleeve is sleeved on the outer side of the slide rail and slides with the slide rail, the top of the slide base is provided with a cutting knife head, the side of the slide base is provided with a push block extending out of the shell, and the shell is provided with a slide base spring for driving the slide base to slide forward.

[0006] Preferably, one copper sleeve is embedded at the front end and the rear end of each through hole respectively, and the slide rail passes through the two copper sleeves in the through hole in sequence.

[0007] Preferably, the number of slide base springs is two, the two slide base springs are sleeved on the two slide rails respectively, and the slide base spring abuts between the slide base and the inner wall of the shell.

[0008] Preferably, the push block is formed at the front end of the slide base.

[0009] Preferably, the slide rail is a cylindrical guide rail.

[0010] Preferably, the top of the slide base is provided with an upwardly protruding cutter head support, and the cutting cutter head is arranged on the side of the cutter head support.

[0011] Preferably, the top of the shell is provided with a gland, and the rear end of the gland is hingedly connected with the top of the shell.

[0012] Preferably, the bottom of the gland is provided with a limit plate which can move up and down, a limit plate spring is clamped between the limit plate and the gland, the limit plate comprises a limit stop lever which extends into the movement space of the cutter head support, a rounded corner is formed on the front side of the lower end of the limit stop lever, when the push block is pushed backward, the cutter head support drives the cutting cutter head to cut the optical fiber clamped between the gland and the shell, and the cutter head support is clamped into the rear side of the limit stop lever after passing the rounded corner.

[0013] Preferably, the top of the limit plate is formed with a column, a screw is screwed on the top of the column, the nut of the screw is clamped on the upper end of the gland, and the limit plate spring is sleeved on the column.

[0014] Preferably, two slide rails are symmetrically arranged below the two sides of the cutting cutter head.

[0015] In the double slide rail optical fiber cutting cutter disclosed by the utility model, the top of the shell is provided with a positioning assembly for loading optical fibers to be cut, when the push block is pressed, the elastic force of the slide base spring is overcome and the slide base is driven to move forward and backward in a direction perpendicular to the optical fiber, two slide rails are fixed in the shell in parallel with each other, and the slide rail and the slide base are slidably connected through the copper sleeve, so that the utility model ensures that the slide base slides forward and backward straightly, and a sliding guide and elastic return structure is composed of the slide base spring, the two slide rails and the at least two copper sleeves, which not only has a simple structure, reliable sliding relationship, but also has lower application cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a double slide rail optical fiber cutting cutter Figure 1 ;

[0017] Figure 2 It is a double slide rail optical fiber cutting cutter Figure 2 ;

[0018] Figure 3 It is an exploded view of the double slide rail optical fiber cutting cutter.

[0019] Figure 4 It is an exploded view of the slide base, the slide rail, the copper sleeve and the slide base spring.

[0020] Figure 5 Structure diagram of the pressing cap, cutting knife head and sliding seat;

[0021] Figure 6 Perspective view of the pressing cap;

[0022] Figure 7 Exploded view of the pressing cap. DETAILED DESCRIPTION

[0023] The utility model will be described in more detail below in combination with the drawings and examples.

[0024] The utility model discloses a double sliding rail optical fiber cutting knife, combine Figures 1 to 7 As shown in the figure, including the casing 1, the sliding seat 2 and two sliding rails 3, two sliding rails 3 are fixed in the casing 1 mutually parallel, two through holes 20 are equipped on the sliding seat 2, two sliding rails 3 respectively pass through two through holes 20, copper bushings 4 are equipped in the through hole 20, the copper bushing 4 is equipped on the outside of the sliding rail 3 and both sliding fit, the top of the sliding seat 2 is equipped with the cutting knife head 5, the side of the sliding seat 2 is equipped with the push block 21 extending to the casing 1, the casing 1 is equipped with the sliding seat spring 6 for driving the sliding seat 2 to slide forward.

[0025] In the above structure, the top of the casing 1 is equipped with the positioning assembly 10 for loading the optical fiber to be cut, when pressing the push block 21, the elastic force of the sliding seat spring 6 is overcome and the sliding seat 2 is driven to move back and forth in the direction perpendicular to the optical fiber, because two sliding rails 3 are fixed in the casing 1 mutually parallel, and the sliding rail 3 and the sliding seat 2 are slidingly matched through the copper bushing 4, the utility model guarantees that the sliding seat 2 slides straight forward and backward, at the same time, the sliding guide and elastic return structure are composed of the sliding seat spring 6, two sliding rails 3 and at least two copper bushings 4, which not only has simple structure, reliable sliding relationship, but also has lower application cost.

[0026] In order to further improve the sliding performance, one copper bushing 4 is embedded in the front and rear ends of the through hole 20 respectively, and the sliding rail 3 passes through the two copper bushings 4 in the through hole 20 in turn. This embodiment fully plays the self-lubricating performance of the copper bushing, is easy to process and manufacture under the condition of guaranteeing high sliding matching degree, and further saves the application cost.

[0027] The sliding seat 2 is preferably driven to reset forward by using the compression spring in this embodiment, specifically, the number of the sliding seat spring 6 is two, two sliding seat springs 6 are respectively sleeved on two sliding rails 3, and the sliding seat spring 6 abuts between the sliding seat 2 and the inner wall of the casing 1.

[0028] In the embodiment, the push block 21 is formed at the front end of the sliding seat 2. Specifically, the push block 21 extends outwards through the opening at the front end of the shell 1, so as to facilitate manual pushing of the push block 21.

[0029] As a preferred mode, the sliding rail 3 is a cylindrical rail. Correspondingly, the copper sleeve 4 is a cylindrical copper sleeve.

[0030] In order to reliably support the cutting bit 5, in the embodiment, the top of the sliding seat 2 is provided with an upwardly protruding bit support 22, and the cutting bit 5 is arranged at the side of the bit support 22.

[0031] In the embodiment, the fiber is pressed against the positioning assembly 10 by a gland. Specifically, the top of the shell 1 is provided with a gland 7, and the rear end of the gland 7 is hingedly connected to the top of the shell 1.

[0032] On this basis, the bottom of the gland 7 is provided with a limit plate 70 that can move up and down, and a limit plate spring is clamped between the limit plate 70 and the gland 7. The limit plate 70 includes a limit stop rod 71 that extends into the movement space of the bit support 22. The lower end of the limit stop rod 71 is formed with a rounded corner 72 at the front side. When the push block 21 is pushed backwards, the bit support 22 drives the cutting bit 5 to cut the fiber clamped between the gland 7 and the shell 1. After the bit support 22 passes the rounded corner 72, it is clamped into the rear side of the limit stop rod 71.

[0033] In the above structure, by providing the rounded corner 72, the bit support 22 can be slidably connected to the lower end of the limit stop rod 71. When the push block 21 is pushed backwards, the bit support 22 drives the cutting bit 5 to first complete the cutting of the fiber. Then the bit support 22 is clamped into and limited to the rear side of the limit stop rod 71. At this time, the cut fiber can be removed first, and then the gland 7 is opened, and the sliding seat 2 is driven to slide forward to reset by the sliding seat spring 6. This structure can avoid scratching the cut surface of the fiber during the forward retraction of the cutting bit 5, thereby ensuring better cutting effect.

[0034] In the embodiment, the limit plate 70 can elastically move up and down. Specifically, the top of the limit plate 70 is formed with a stand 73, and the top of the stand 73 is screwed with a screw 74. The nut of the screw 74 is clamped to the upper end of the gland 7, and the limit plate spring is sleeved on the stand 73.

[0035] As a preferred mode, two sliding rails 3 are symmetrically arranged below the two sides of the cutting bit 5. Please refer to Figure 4In the embodiment, the projection of the cutting head 5 on the horizontal plane is close to the middle point of the vertical segment between the two slide rails 3. In actual application, the cutting head 5 can be at the middle point of the vertical segment or slightly deviated from the middle point, as long as the cutting head 5 is located above the vertical segment of the two slide rails 3, the reaction force of the cutting head 5 during cutting the optical fiber can be shared on the two slide rails 3, the reaction force is triangularly dispersed, the movement track of the cutting head 5 is more stable, and the cutting precision is higher.

[0036] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement or improvement within the technical scope of the present application shall be included in the scope of the present application.

Claims

1. A dual slide rail fiber cleaver, characterized by, The utility model provides a cutting device for fiber, including casing (1), slide (2) and two slide rails (3), two slide rails (3) are fixed in casing (1) mutually parallel, be equipped with two through -hole (20) on slide (2), two slide rails (3) respectively pass through two through -hole (20), be equipped with copper bushing (4) in through -hole (20), copper bushing (4) is set up in the outside of slide rail (3) and both slide fit, the top of slide (2) is equipped with cutting knife head (5), the side of slide (2) is equipped with the push piece (21) that extends to the outside of casing (1), be equipped with the slide spring (6) for driving slide (2) to slide forward in casing (1).

2. The dual slide rail fiber cleaver of claim 1, wherein, The front and rear ends of the through hole (20) are respectively embedded with a copper bushing (4), and the slide rail (3) sequentially passes through the two copper bushings (4) in the through hole (20).

3. The dual slide rail fiber cleaver of claim 1, wherein, The number of the slide spring (6) is two, and the two slide springs (6) are respectively sleeved on the two slide rails (3), and the slide spring (6) abuts between the slide (2) and the inner wall of the casing (1).

4. The dual slide fiber cleaver of claim 1 wherein, The push block (21) is formed at the front end of the slide (2).

5. The dual slide fiber cleaver of claim 1 wherein, The slide rail (3) is a cylindrical guide rail.

6. The dual slide rail fiber cleaver of claim 1, wherein, The top of the slide (2) is provided with a knife head support (22) protruding upward, and the cutting knife head (5) is arranged on the side of the knife head support (22).

7. The dual slide rail fiber cleaver of claim 6, wherein, The top of the casing (1) is provided with a gland (7), and the rear end of the gland (7) is hingedly connected with the top of the casing (1).

8. The dual slide fiber cleaver of claim 7 wherein, The bottom of the gland (7) is provided with a limit plate (70) which can move up and down, and a limit plate spring is clamped between the limit plate (70) and the gland (7). The limit plate (70) includes a limit stop lever (71) extending into the movement space of the knife head support (22), and a rounded portion (72) is formed on the front side of the lower end of the limit stop lever (71). When the push block (21) is pushed backward, the knife head support (22) drives the cutting knife head (5) to cut the optical fiber clamped between the gland (7) and the casing (1), and the knife head support (22) is clamped into the rear side of the limit stop lever (71) after passing the rounded portion (72).

9. The dual slide fiber cleaver of claim 8 wherein, A column (73) is formed on the top of the limit plate (70), a screw (74) is screwed on the top of the column (73), the nut of the screw (74) is clamped on the upper end of the gland (7), and the limit plate spring is sleeved on the column (73).

10. The dual slide fiber cleaver of claim 1 wherein, The two slide rails (3) are symmetrically arranged below the two sides of the cutting knife head (5).

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