Skin nicking tool

Abstract

The skin nicking tool comprises a tool handle and a blade connected to one end of the tool handle, a first rolling wheel is arranged on the side, away from a cutting edge of the blade, of the tool handle, the first rolling wheel is pressed on the surface of a skin, and a first wheel frame with one end fixedly connected with the tool handle is arranged on the tool handle. And the other end of the first wheel carrier is rotationally connected with the first roller. During engraving, an operator holds the knife handle with a hand to engrave the skin in the direction from left to right. When the blade rotates around the center of the first roller, the carving depth is adjusted. If the force is suddenly increased during engraving, the skin is engraved through, and the skin is continuously engraved by keeping the state. Due to the fact that the first rolling wheel plays a supporting role in the carving process, the carving depth is easier to control compared with the carving depth control only depending on the wrist of an operator.

Description

TECHNICAL FIELD

[0001] The utility model relates to handwork engraving technology field especially, relate to a skin engraver. BACKGROUND

[0002] Chemical milling is a kind of surface processing method to replace some mechanical processing, the surface of the parts to be processed is immersed in chemical solution, so that the excess metal material on the surface of the parts is removed.

[0003] Many parts on the aircraft are processed by chemical milling, the material of the parts is metal, first, a protective layer is attached or coated on the surface of the metal substrate to form a non-metal skin on the substrate. Then, a line is drawn on the skin, and then an operator holds an engraver to engrave the skin along the line. After that, the skin in the area to be processed is torn off, and a chemical solution is used to corrode the area to be processed. The non-processing area is not corroded because it is protected by the remaining skin. After the corrosion is completed, the parts are cleaned, and the remaining protective skin is torn off, thereby completing the chemical milling of the parts.

[0004] During the process of the operator holding the engraver to engrave, the engraver is in a suspended state, the operator's wrist is attached to the surface of the skin, and the operator only relies on experience and hand force to engrave the skin. If the engraving force is too small, the skin is not engraved, and when the skin in the area to be processed is torn off, the protective skin will be brought up, which will cause the non-processing area to be corroded after chemical milling, resulting in over-corrosion and causing the parts to be scrapped. Even if the protective skin is not brought up, the edge of the skin will also produce burrs, thereby causing the straightness of the boundary line of the processed parts to be not high, the boundary line to be rough, and the surface quality to be poor. If the engraving force is too large, the damage to the substrate under the skin caused by the engraver after passing through the skin will be too large.

[0005] The patent with publication number CN114146878A discloses a method for spraying, testing and engraving of aluminum alloy chemical milling protective glue, which dilutes the chemical milling protective glue to the target glue viscosity; sprays the parts based on the preset spraying parameters in the preset environment to obtain the parts with glue film; and then performs engraving according to the line based on the sample line of the chemical milling sample plate. It does not disclose how to ensure that the glue film is engraved, and how to ensure that the surface of the parts is not damaged due to excessive force.

[0006] The patent with publication number CN208812853U discloses a detachable fruit and vegetable engraver, which includes a slot ruler, a cutter head, a connecting piece and a circular handle. The cutter head is driven to slide along the slot ruler by manually pushing the circular handle, so as to realize cutting. The depth of cutting can be adjusted by adjusting the position of the cutter head. However, the accuracy of the position of the cutter head cannot be ensured, so it cannot be used in the working condition where the cutter head needs to be aligned with the line. UTILITY MODEL CONTENTS

[0007] The utility model discloses a technical problem that is to provide a skin engraver, is used to solve the problem that the engraving force and the engraving depth are not easy to grasp when the skin is engraved along the line.

[0008] To solve the above technical problem, the utility model adopts the technical scheme of:

[0009] A skin engraver, including the handle and the blade that are connected in the handle one end, the handle is equipped with the first gyro wheel in the side of the blade blade mouth far away, the first gyro wheel is pressed in the skin surface, be equipped with the first wheel frame of one end fixed connection with it on the handle, the other end rotation is connected with the first gyro wheel of the first wheel frame.

[0010] Further, the handle and the blade corresponding one end are the first end, the other end is the second end, the handle is equipped with the slide rod along its axial direction, the slide rod and handle sliding fit, the blade is slidingly connected in the first end of handle, the blade is fixedly connected with the slide rod, the handle is equipped with the adjusting mechanism for driving the slide rod axial movement in the second end.

[0011] Further, the adjusting mechanism includes the first sleeve pipe of screwing on the second end of handle, the outer end of first sleeve pipe is the baffle ring, the slide rod is slidingly connected with the baffle ring, the outer end of slide rod is fixedly connected with the sliding ring, the sliding ring is close to the handle one side and is against the baffle ring, be equipped with the pusher device for the slide rod to the blade direction elastic force on the first sleeve pipe.

[0012] Further, the pusher device includes the second sleeve pipe of fixedly connected in the first sleeve pipe outer end, the spring is equipped in the second sleeve pipe, the spring one end is against the sliding ring, the other end is against the second sleeve pipe.

[0013] Further, the outer end of second sleeve pipe is the baffle plate, the knob is screwed and is connected on the baffle plate, the slide plate is equipped between the spring and the baffle plate in the second sleeve pipe, the slide plate and second sleeve pipe slidingly connect, the knob is against the one side of slide plate, the spring is against the other side of slide plate.

[0014] Further, the handle is equipped with the second gyro wheel in the side of the slide rod close to the blade blade mouth, be equipped with the second wheel frame of one end fixed connection with it on the handle, the other end rotation is connected with the second gyro wheel of the second wheel frame.

[0015] Further, the blade and the base material under the skin plate are communicated through the wire, the power supply and the indicator lamp are sequentially arranged on the wire, the indicator lamp one side is parallelly connected with the buzzer.

[0016] The utility model discloses the positive effect that:

[0017] The utility model discloses a knife handle, blade and first gyro wheel are equipped with, and the base material and the blade between being engraved are communicated through the wire, and the wire is provided with power supply and pilot lamp, and the pilot lamp has the buzzer in parallel on one side. When engraving, the first gyro wheel plays the supporting role when engraving, and thus it is easier to control the engraving depth than only relying on the wrist of operator to control the engraving depth. When adjusting the engraving depth from shallow to deep, if the pilot lamp suddenly lights up, the buzzer gives the alarm sound, and then the depth is just right, and then the state is kept to continue engraving. The utility model discloses the engraving depth when the skin is engraved is more easily controlled, and the phenomenon that the skin is engraved too deep or not can be avoided, and the skin can be found in time when not being engraved in the engraving. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the schematic diagram of example 1 and 2;

[0019] Figure 2 It is the structural schematic diagram of example 3;

[0020] Figure 3 It is Figure 2 The partial close -up view of I part in it;

[0021] Figure 4 It is Figure 2 The partial close -up view of II part in it;

[0022] In the drawing: 1, base material;2, first gyro wheel;3, first wheel frame;4, knife handle;5, blade;6, skin;7, power supply;8, pilot lamp;9, buzzer;10, slide bar;11, first sleeve;12, slip ring;13, second sleeve;14, slide plate;15, knob;16, spring;17, second wheel frame;18, second gyro wheel;19, baffle ring. DETAILED DESCRIPTION

[0023] Example 1

[0024] As Figure 1 Shown, a skin engraver, including the knife handle 4 of round rod shape and the blade 5 connected in the lower end of knife handle 4. The knife handle 4 is inclined along the direction from left lower to right upper, and the blade 5's cutting edge is right. When engraving, the blade 5 moves along the direction from left to right, and the skin 6 covered on the base material 1 is engraved, and the base material is aluminum alloy.

[0025] The left of the knife handle 4 is equipped with the first gyro wheel 2, and the first gyro wheel 2 is pressed on the surface of the skin 6, and the left side of the knife handle 4 is fixedly connected with the first wheel frame 3 through screw, and the lower end of the first wheel frame 3 is rotationally connected with the first gyro wheel 2.

[0026] In the engraving, the operator holds the handle 4, and engraves the skin 6 along the direction from left to right. When the blade 5 rotates around the center of the first roller 2, the engraving depth is adjusted. If the force suddenly becomes large during the engraving, it indicates that the skin 6 has been engraved through, and the skin 6 is continuously engraved in this state. Since the first roller 2 supports during the engraving, it is easier to control the engraving depth than to rely on the operator's wrist to control the engraving depth.

[0027] The blade 5 and the substrate 1 under the mask plate are connected through a wire, and the wire is sequentially provided with a power supply 7 and an indicator light 8. The indicator light 8 is connected in parallel with a buzzer 9.

[0028] When the engraving depth is adjusted from shallow to deep, if the indicator light 8 suddenly lights up and the buzzer 9 emits an alarm sound, it indicates that the depth is appropriate, and then the engraving is continuously performed in this state.

[0029] Therefore, the engraving depth during the engraving of the skin is more easily controlled, and the phenomenon of over-engraving or the skin not being engraved through can be avoided. When the skin is not engraved through during the engraving, it can be found in time. During the engraving, the relative position of the blade 5 and the line drawn on the skin 6 in advance can be seen in real time, and the accuracy of the blade position is ensured.

[0030] Embodiment 2

[0031] The difference between this embodiment and embodiment 1 is that:

[0032] The slide rod 10 is arranged in the handle 4 along the axial direction, and the slide rod 10 is in sliding fit with the handle 4. The blade 5 is slidably connected to the lower end of the handle 4, and the lower end of the slide rod 10 is fixedly connected to the blade 5 through a screw. The upper end of the handle 4 is provided with an adjusting mechanism for driving the slide rod 10 to move axially.

[0033] The adjusting mechanism comprises a first sleeve 11 sleeved on the upper end of the handle 4. The lower part of the first sleeve 11 is threadedly connected to the handle 4. The upper end of the first sleeve 11 is a stop ring 19. The slide rod 10 is in sliding fit with the stop ring 19. The upper end of the slide rod 10 is fixedly connected with a sliding ring 12 through a locking screw. The lower surface of the sliding ring 12 abuts against the stop ring 19. The first sleeve 11 is provided with a pushing device for applying an elastic force to the slide rod 10 in the axial direction towards the blade 5.

[0034] The right side of the handle 4 is provided with a second roller 18. The left side of the handle 4 is provided with an L-shaped second wheel frame 17, and the upper end of the second wheel frame 17 is fixedly connected to the handle 4 through a screw. The lower end of the second wheel frame 17 is rotatably connected to the second roller 18.

[0035] When engraving, the first roller 2 and the second roller 18 are pressed on the surface of the skin 6, so that the angle between the blade holder 4 and the skin 6 during engraving is constant, and thus the depth of engraving can also be kept constant. By screwing the first sleeve 11, the first sleeve 11 drives the slide rod 10 to move axially along the blade holder 4 under the action of threads, and then drives the blade 5 to move axially along the blade holder 4, so as to facilitate the adjustment of the depth of engraving.

[0036] Embodiment 3

[0037] The difference between this embodiment and embodiment 2 is that:

[0038] The pushing device comprises a second sleeve 13 fixedly connected to the upper end of the first sleeve 11, the upper end of the second sleeve 13 is a plug plate, a spring 16 is arranged in the second sleeve 13, the lower end of the spring 16 abuts against the slide ring 12, and the upper end of the spring 16 abuts against the plug plate.

[0039] The plug plate is provided with a knob 15, the lower part of the knob 15 is threadedly connected with the plug plate, a circular slide plate 14 is arranged between the spring 16 and the plug plate in the second sleeve 13, the slide plate 14 is slidably connected with the second sleeve 13, the lower end of the knob 15 is conical, the lower end of the knob 15 abuts against the center on the upper side of the slide plate 14, and the spring 16 abuts against the lower side of the slide plate 14.

[0040] By screwing the knob 15, the spring force of the spring 16 can be adjusted by the slide plate 14, and then the spring force applied to the slide ring 12 is adjusted. When the engraving force is too large, the blade 5 pushes the slide rod 10 axially, and the spring 16 is compressed by pushing the slide ring 12, so as to prevent the substrate 1 from being damaged too much.

[0041] The above-described embodiments are more detailed and specific, express the preferred embodiments of the utility model, and are only used for explaining the technical ideas and characteristics of the utility model, and the purpose is to enable the person skilled in the art to understand the content of the utility model and implement it, but the utility model is not limited to the embodiments, and the patent range of the utility model cannot be limited by the embodiments, that is, any equivalent changes or modifications made according to the spirit disclosed by the utility model, without departing from the structure of the utility model, the local improvement of the system and the change between the subsystems, and the transformation, etc., are still within the patent range of the utility model.

Claims

1. A skinning knife comprising a handle (4) and a blade (5) connected to one end of the handle (4), characterized in that, The first roller (2) is arranged on the side of the shank (4) away from the blade (5) and is pressed against the surface of the skin (6).

2. A skinning graver according to claim 1, wherein, The shank (4) has a first end corresponding to the blade (5) and a second end, and a slide rod (10) is arranged in the shank (4) along the axial direction of the shank (4), the slide rod (10) is in sliding fit with the shank (4), the blade (5) is in sliding fit with the first end of the shank (4), the blade (5) is fixedly connected with the slide rod (10), and the shank (4) is provided with an adjusting mechanism at the second end for driving the slide rod (10) to move axially.

3. A skinning graver according to claim 2, wherein, The adjusting mechanism comprises a first sleeve (11) in threaded connection with the second end of the shank (4), the outer end of the first sleeve (11) is a stop ring (19), the slide rod (10) is in sliding fit with the stop ring (19), the outer end of the slide rod (10) is fixedly connected with a slide ring (12), the slide ring (12) is abutted against the stop ring (19) on the side close to the shank (4), and the first sleeve (11) is provided with a pushing device for applying elastic force to the slide rod (10) in the direction of the blade (5).

4. A skinning graver according to claim 3, wherein, The pushing device comprises a second sleeve (13) fixedly connected with the outer end of the first sleeve (11), the second sleeve (13) is provided with a spring (16) therein, one end of the spring (16) is abutted against the slide ring (12), and the other end of the spring (16) is abutted against the second sleeve (13).

5. A skinning graver according to claim 4, wherein, The outer end of the second sleeve (13) is a blocking plate, a knob (15) is in threaded connection with the blocking plate, the second sleeve (13) is provided with a slide plate (14) between the spring (16) and the blocking plate, the slide plate (14) is in sliding fit with the second sleeve (13), the knob (15) is abutted against one side of the slide plate (14), and the spring (16) is abutted against the other side of the slide plate (14).

6. A skinning graver according to claim 1, wherein, The second roller (18) is arranged on the side of the shank (4) close to the blade (5), the shank (4) is provided with a second wheel frame (17) fixedly connected with the shank (4) at one end, and the other end of the second wheel frame (17) is in rotary connection with the second roller (18).

7. A skinning graver according to claim 1 wherein, The blade (5) and the base material (1) under the cover plate are in communication through a wire, the wire is provided with a power supply (7) and an indicator lamp (8) in sequence, and a buzzer (9) is connected in parallel with the indicator lamp (8).

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