Large-storage tattooing integrated needle, using method and tattooing device

Abstract

The invention discloses a large-storage-capacity tattooing integrated needle, a using method and a tattooing device, the tattooing integrated needle comprises a needle shell, the front end of the needle shell is a sharp mouth part, an ink storage cavity is formed in the middle of the needle shell, a middle opening is formed in the circumferential surface of the needle shell, and the rear end of the needle shell is open; the rear cover covers the opening in the rear end of the needle shell; the needle wire is mounted in the needle shell and can extend out of the mouth part of the needle shell; the rear end part of the transmission part penetrates through the rear cover, the front end part of the transmission part is fixedly connected with the needle wire, and the driving motor drives the transmission part to reciprocate so as to drive the needle wire to reciprocate to complete the puncturing action; the one-way valve is arranged on the middle opening; the transmission part or the needle wire is sleeved with the spring leather sheath, and the spring leather sheath is attached to the inner side wall of the needle shell in a sealed mode. According to the tattooing integrated needle, more ink storage amount is provided, the frequency of drawing by dipping ink is reduced, the working efficiency is improved, and more energy is put on drawing; and meanwhile, secondary line drawing on the skin is reduced, such as damage caused by ink light and line lightening.

Description

Technical Field

[0001] The invention belongs to the technical field of tattoo / embroidery / hair tattooing, and in particular relates to a large-reserve integrated tattoo needle, a use method and a tattoo device. Background Art

[0002] When a conventional one-piece needle is used to make a pattern on human skin, it is necessary to frequently dip it in special pigment ink to draw the pattern. The design structure of the conventional one-piece needle is that there is a window on the plastic shell, which connects the internal space of the one-piece needle with the outside atmosphere. The ink is brought into the shell by the repeated movement of the needle thread, and the capillary phenomenon of atmospheric pressure absorbs the ink into the gap between the stainless steel needle thread and the plastic shell. The ink storage capacity is limited. When the ink storage capacity exceeds a certain position, the excess ink will be brought out of the one-piece needle due to the ink's own gravity, atmospheric pressure, or the high-frequency reciprocating motion of the needle thread of the one-piece needle. At the same time, ink dripping and ink spraying will occur, affecting the tattoo artist's drawing efficiency. Taking the circular one-piece needle (the puncture pattern is circular) as an example, the length of a straight line drawn by a conventional one-piece needle at one time is about 20 to 45 cm. If a large area is tattooed, the tattoo efficiency will be reduced; when the ink is about to run out during the tattoo process, the color of the drawn line will obviously become lighter, and the next time you dip the ink, you need to connect the lighter lines above and draw again. The quality of the overlapping lines is not high. Frequent dipping will reduce the overall tattoo pattern quality and cause more damage to the skin. Summary of the invention

[0003] The purpose of the present invention is to provide a large-capacity tattoo integrated needle, which can store a large amount of ink in advance and reduce the frequency of ink replenishment.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: a large-reserve integrated tattoo needle, which comprises:

[0005] The needle shell has a pointed mouth at its front end, an ink storage cavity formed in the middle and a central opening formed on the peripheral surface, and an open rear end;

[0006] A rear cover, which is arranged on the opening at the rear end of the needle housing;

[0007] a needle wire installed in the needle housing and capable of extending from the mouth of the needle housing;

[0008] A transmission part, the rear end of which is inserted into the rear cover and the front end of which is fixedly connected to the needle wire, and a driving motor drives the transmission part to reciprocate and then drives the needle wire to reciprocate to complete the puncture action;

[0009] The integrated needle also includes a one-way valve arranged on the middle opening, and a spring leather sheath sleeved on the transmission part or the needle thread and sealed with the inner wall of the needle shell. When tattooing, the driving motor is started, the needle thread is driven by the transmission part to extend from the mouth, and the spring leather sheath simultaneously moves downward to squeeze the air in the ink storage chamber, so that the air is discharged from the one-way valve, and negative pressure is formed in the ink storage chamber. When the transmission rod drives the needle thread to be retracted into the ink storage chamber, the one-way valve is closed, and the gap between the needle thread and the mouth is partially opened and partially sealed by ink, so that the ink is kept from flowing out while air is replenished; when it is necessary to suck ink into the ink storage chamber, the mouth is placed in a container containing ink, and when the needle thread is retracted into the ink storage chamber, the ink in the container is sucked into the ink storage chamber due to the negative pressure, and the needle thread completes the ink absorption after reciprocating motion for several times.

[0010] In another embodiment, the one-way valve is a silicone one-way valve.

[0011] In another embodiment, the spring leather sleeve is made of silicone, and its rear end sealing sleeve is arranged on the end of the rear cover located inside the needle housing, and its front end sealing sleeve is arranged on the transmission part.

[0012] In another embodiment, the transmission part includes a transmission rod, the middle section of the transmission rod is in the shape of a quadrangular prism, and the rear cover is provided with a quadrangular prism-shaped hole matching the middle section of the transmission rod, which can further play a guiding role.

[0013] In another embodiment, a first annular sealing ring is formed below the middle section of the transmission rod, and the front end sealing sleeve of the spring leather sleeve is arranged on the first sealing ring, which can not only achieve sealing, but also the tensioned spring leather sleeve can make the transmission rod always have a tendency to move toward the rear side.

[0014] In another embodiment, the first sealing ring is in a frustum shape with a thick front side and a thin rear side.

[0015] The inventor also provides a method for using the large-storage integrated tattoo needle: when the holster is retracted, the internal volume of the shell is V1, and the internal pressure is P1; when the holster is extended, the internal volume of the shell is V2, and the internal pressure is P2. When the holster is extended, the increased pressure inside the shell is △P, the compressed volume is △V, the volume discharged at the air valve is △V1, and the volume discharged at the needle nozzle gap is △V2. The standard atmospheric pressure is P0, the air valve opening pressure is Pk, and the frequency of the reciprocating motion of the needle wire is f. The method of use is: make 3HZ≤f≤250HZ, P0≤Pk≤2 / 3△P or 0<△V2≤0.05△V, that is, the smaller the air valve opening pressure or the smaller the volume discharged at the needle nozzle gap, the more obvious the ink storage effect.

[0016] Another implementation method, according to the gas state equation theorem in physics, when the ambient temperature remains unchanged, the pressure of the gas changes inversely with its volume, that is, P1V1=P2V2, then △P=P2-P1=P2-P2×V2 / V1, P0≤P k ≤1 / 2(P2-P2×V2 / V1).

[0017] In another implementation manner, P0<Pk≤106.7Kpa.

[0018] The inventor also provides a tattoo device, which includes a gripping portion, a driving portion installed in the gripping portion, and a tattoo integrated needle. The gripping portion is cylindrical, and the driving portion includes a driving motor installed in the gripping portion, an eccentric wheel fixed on the driving motor, a follower wheel sleeved on the eccentric wheel and rotatably connected to the eccentric wheel, a transmission wire with a flexible rear end connected between the follower wheel and the tattoo integrated needle, and a power rod connected to the front end of the transmission wire. The tattoo integrated needle is any of the large-reserve tattoo integrated needles mentioned above, and the front end of the power rod is pressed on the rear end surface of the tattoo integrated needle. When the driving motor rotates, the eccentric wheel drives the follower wheel to reciprocate, thereby driving the transmission wire to reciprocate, and finally drives the tattoo integrated needle to reciprocate.

[0019] In another embodiment, the front end portion of the gripping portion is provided with a front end mounting hole, and a middle mounting hole connected to the front end mounting hole is provided in the gripping portion and located at the rear side of the front end mounting hole, the driving motor is installed in the gripping portion and located at the rear side of the middle mounting hole, the rear end portion of the tattoo integrated needle and the power rod are inserted into the middle mounting hole, the power rod has a spherical guide head, the center of the rear end surface of the transmission rod is provided with a concave and arc-shaped guide surface, the guide head is pressed on the guide surface, and the rear cover is fixedly mounted on the front end In the mounting hole, the guide head is located in the middle mounting hole and cooperates with the gap of the middle mounting hole, so that when the guide head pushes the guide surface at any angle, it is pressed on the center position of the guide surface, and the driving motor drives the power rod to reciprocate. When the power rod moves forward and drives the transmission rod to move forward, it drives the needle thread to extend out of the mouth of the needle shell, and the spring leather cover is stretched at the same time. When the power rod moves backward, the spring leather cover retracts. Since the front end of the spring leather cover is tightly sleeved on the first sealing ring of the transmission rod, the retraction of the spring leather cover will pull the transmission rod back, that is, pull the needle thread back into the needle shell.

[0020] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the integrated tattoo needle provides a larger ink storage capacity, reduces the frequency of dipping ink for drawing, improves work efficiency, and puts more energy on drawing; at the same time, it reduces the damage caused by secondary drawing on the skin, such as running out of ink and fading of lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the first embodiment of the present invention;

[0022] Figure 2 It is an exploded view of the first embodiment of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure when the needle wire is ejected in the first embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the mechanism when absorbing ink in Example 1;

[0025] Figure 5 This is a state diagram of the 1205R needle type integrated needle when absorbing ink (for easy observation, the ink in the figure is replaced by water);

[0026] Figure 6 This is a picture of the state of the 1205R needle after the integrated needle has completed ink absorption (for easy observation, the ink in the picture is replaced by water);

[0027] Figure 7 This is a state diagram of the 1223F needle type integrated needle when absorbing ink (for easy observation, the ink in the figure is replaced by water);

[0028] Figure 8 This is a state diagram of the 1223F needle type after the integrated needle has completed ink absorption (for ease of observation, the ink in the figure is replaced by water);

[0029] Fig. 9 It is a structural schematic diagram of Embodiment 2;

[0030] Fig.10 This is a schematic diagram of a circular needle mouth;

[0031] Fig.11 Schematic diagram of the flat needle mouth. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0033] Embodiment 1

[0034] like Figure 1-4 As shown, the large-capacity integrated tattoo needle includes: a needle shell 1, a back cover 6, a needle wire 3, a transmission part, a one-way valve 2 and a spring leather case 5.

[0035] The front end of the needle shell 1 is a pointed mouth 12, in which an ink storage cavity 13 is formed in the middle and a middle opening 11 is formed on the peripheral surface, and the rear end is open; the rear cover 6 is covered on the rear end opening of the needle shell 1; the needle thread 3 is installed in the needle shell 1 and can extend from the mouth 12 of the needle shell 1; the rear end of the transmission part is penetrated on the rear cover 6 and the front end is fixedly connected to the needle thread 3, and the driving motor drives the transmission part to reciprocate and then drives the needle thread 3 to reciprocate to complete the puncture action; the one-way valve 2 is arranged on the middle opening 11, which is a silicone one-way valve 2; the spring leather cover 5 is sleeved on the transmission part or The spring holster 5 is on the needle wire 3 and sealed with the inner wall of the needle shell 1. The spring holster 5 is made of silicone, and its upper end sealing sleeve is arranged on the end of the rear cover 6 located inside the needle shell 1 and its lower end sealing sleeve is arranged on the transmission part; the transmission part includes a transmission rod 4, the middle section of the transmission rod 4 is in the shape of a quadrangular prism, and the rear cover 6 is provided with a quadrangular prism-shaped square hole 15 matching the middle section of the transmission rod 4, and an annular first sealing ring 16 is formed below the middle section of the transmission rod 4. The first sealing ring 16 is in the shape of a cone with a thick front side and a thin rear side, and the lower end sealing sleeve of the spring holster 5 is arranged on the first sealing ring 16.

[0036] When tattooing, the driving motor is started, and the needle thread 3 is driven by the transmission part to extend out from the mouth 12. At the same time, the spring leather cover 5 moves downward to squeeze the air in the ink storage chamber 13, so that the air is discharged from the one-way valve 2, and a negative pressure is formed in the ink storage chamber 13. When the transmission rod 4 drives the needle thread 3 to be retracted into the ink storage chamber 13, the one-way valve 2 is closed, and the gap between the needle thread 3 and the mouth 12 is partially opened and partially sealed by ink, so that the ink is prevented from flowing out while the air is replenished; when it is necessary to suck the ink into the ink storage chamber 13, the mouth 12 is placed in the container 7 containing ink, and when the needle thread 3 is retracted into the ink storage chamber 13, the ink 8 in the container 7 is sucked into the ink storage chamber 13 due to the negative pressure, and the needle thread 3 completes the ink absorption after reciprocating motions for many times.

[0037] When the holster is retracted, the internal volume of the shell is V1 and the internal pressure is P1; when the holster is extended, the internal volume of the shell is V2 and the internal pressure is P2. When the holster is extended, the increased pressure inside the shell is △P, the compressed volume is △V, the volume discharged at the air valve is △V1, the volume discharged at the needle mouth gap A is △V2, the standard atmospheric pressure is P0, and the air valve opening pressure is P k The frequency of the reciprocating motion of the needle wire is f. Based on the above-mentioned method of using the large-reserve tattoo integrated needle: make 3HZ≤f≤250HZ, P0≤Pk≤2 / 3△P or 0<△V2≤0.05△V.

[0038] According to the gas state equation theorem in physics, when the ambient temperature remains unchanged, the pressure of the gas is inversely proportional to its volume, that is, P1V1 = P2V2, then △P = P2-P1 = P2-P2×V2 / V1. Based on the above method of using the large-capacity tattoo needle: make P0≤P k≤1 / 2(P2-P2×V2 / V1), and 3HZ≤f≤250HZ.

[0039] The above method of use is used to test the following needle types, and the experimental indicators include the following two points: 1. When the ink is dipped, water can be sucked into the shell, and the liquid will continue to be sucked in, and the liquid level will rise to the position of the one-way valve 2 of the needle shell; 2. After the ink storage needle leaves the ink, there will be no needle beading, ink dripping, or ink spraying at the needle mouth; when the above two indicators are met at the same time, the integrated needle is considered qualified. The experimental results are shown in Table 1 below, ○ indicates qualified, and × indicates unqualified;

[0040]

[0041] Table 1

[0042] The ink absorption status and effect of the integrated needles of 1205R and 1223F are as follows: Figure 5-8 shown.

[0043] Taking the 1203R ink storage needle as an example, assume that the internal pressure increases instantaneously, that is, the pressure loss at the needle mouth or the air valve is not considered. When the holster is retracted, the internal volume of the shell is V1 (1.371cm 3 ), the internal pressure is P1; when the holster is extended, the internal volume of the shell is V2 (1.268cm 3 ), the internal pressure is P2. According to the gas state equation theorem in physics, when the ambient temperature remains unchanged, the pressure of the gas is inversely proportional to its own volume, that is, P1V1=P2V2. According to the formula, P2=120.6Kpa, that is, the increased pressure inside the shell △P=8.2Kpa. Considering the influence of other factors and ensuring the functional reliability of the product, the valve opening pressure shall not exceed 2 / 3△P, that is, the valve opening pressure is Pk≤106.7Kpa.

[0044] When the valve opening pressure Pk = 106Kpa, f = 80Hz (this frequency is commonly used for tattooing), the relationship between the needle mouth gap area and the above phenomenon is tested. When the needle mouth gap AA area exceeds 7.2mm 2 When the ink is sucked into the cavity, the liquid is sucked in slowly, and after the needle tip is separated from the liquid, ink drips from the needle tip.

[0045] When the valve opening pressure Pk = 106Kpa, the needle mouth gap A area is 4.12mm 2 (1223F), the test frequency f≤2Hz is related to the above phenomenon; when f=2Hz, the ink absorption phenomenon becomes slow, a water droplet slowly forms at the needle mouth and will drip; when f=1Hz, the ink absorption phenomenon is extremely slow and cannot achieve the effect of ink storage.

[0046] Embodiment 2

[0047] like Fig. 9 As shown, the tattoo device includes a gripping portion 17, a driving portion installed in the gripping portion and a tattoo integrated needle. The gripping portion 17 is cylindrical, and the driving portion includes a driving motor 18 installed in the gripping portion, an eccentric wheel 19 fixed on the driving motor, a follower wheel 20 sleeved on the eccentric wheel 19 and rotatably connected to the eccentric wheel 19, a flexible transmission wire 21 connected between the follower wheel 20 and the tattoo integrated needle, a power rod 9 connected to the front end of the transmission wire 21, and a counterweight wheel 23 coaxially arranged with the eccentric wheel 19 and used for balancing. When the driving motor rotates 18, the eccentric wheel 19 drives the follower wheel 20 to do reciprocating motion, thereby driving the transmission wire 21 to do reciprocating motion, and finally drives the tattoo integrated needle to do reciprocating motion.

[0048] Specifically:

[0049] Tattoo needle Figure 1-4 The large-capacity integrated tattoo needle shown includes: a needle housing 1, a rear cover 6, a needle wire 3, a transmission part, a one-way valve 2 and a spring leather case 5.

[0050] The front end of the needle shell 1 is a pointed mouth 12, in which an ink storage cavity 13 is formed in the middle and a middle opening 11 is formed on the peripheral surface, and the rear end is open; the rear cover 6 is covered on the rear end opening of the needle shell 1; the needle thread 3 is installed in the needle shell 1 and can extend from the mouth 12 of the needle shell 1; the rear end of the transmission part is penetrated on the rear cover 6 and the front end is fixedly connected to the needle thread 3, and the driving motor 18 drives the transmission part to reciprocate and then drives the needle thread 3 to reciprocate to complete the puncture action; the one-way valve 2 is arranged on the middle opening 11, which is a silicone one-way valve 2; the spring leather cover 5 is sleeved on the transmission part or the needle thread 3 and is sealed and fitted with the inner wall of the needle shell 1, and the spring The leather cover 5 is made of silicone, and its upper end is sealed on the end of the rear cover 6 located inside the needle shell 1 and its lower end is sealed on the transmission part; the transmission part includes a transmission rod 4 connected between the drive motor 18 and the needle wire 3, the front end of the transmission steel wire 21 is fixedly connected to the rear end of the transmission rod 4, the middle section of the transmission rod 4 is in the shape of a quadrangular prism, and the rear cover 6 is provided with a quadrangular prism-shaped square hole 15 matching the middle section of the transmission rod 4, and an annular first sealing ring 16 is formed below the middle section of the transmission rod 4. The first sealing ring 16 is in the shape of a cone with a thick front side and a thin rear side, and the lower end sealing sleeve of the spring leather cover 5 is arranged on the first sealing ring 16.

[0051] When tattooing, the driving motor 18 is started, and the needle thread 3 is driven by the transmission part to extend from the mouth 12. At the same time, the spring leather cover 5 moves downward to squeeze the air in the ink storage chamber 13, so that the air is discharged from the one-way valve 2, and a negative pressure is formed in the ink storage chamber 13. When the transmission rod 4 drives the needle thread 3 to be retracted into the ink storage chamber 13, the one-way valve 2 is closed, and the gap between the needle thread 3 and the mouth 12 is partially opened and partially sealed by ink, so that the ink is kept from flowing out while air is replenished; when it is necessary to suck the ink into the ink storage chamber 13, the mouth 12 is placed in the container 7 containing ink, and when the needle thread 3 is retracted into the ink storage chamber 13, the ink 8 in the container 7 is sucked into the ink storage chamber 13 due to the negative pressure, and the needle thread 3 completes the ink absorption after reciprocating for many times.

[0052] The middle section of the transmission rod 4 is in the shape of a quadrangular prism, and a quadrangular prism-shaped square hole 15 matching the middle section of the transmission rod 4 is provided on the rear cover 6; a front end portion is provided with a front end mounting hole 24, and a middle portion mounting hole 22 connected to the front end mounting hole 24 is provided in the gripping portion 17 and located at the rear side of the front end mounting hole 24. The driving motor is installed in the gripping portion 17 and located at the rear side of the middle portion mounting hole 22. The rear end of the tattoo integrated needle and the power rod 9 are inserted into the middle portion mounting hole 22. The power rod 9 has a spherical guide head 14. A concave and arc-shaped guide surface is provided in the center of the rear end surface of the transmission rod 4. The guide head 14 is pressed on the guide surface. The rear cover is fixedly installed in the front end mounting hole 24. The head 14 is located in the middle mounting hole 22 and is clearance-matched with the middle mounting hole 22, so that when the guide head 14 pushes the guide surface at any angle, it is pressed on the center position of the guide surface, that is, on the axis of the transmission rod 4, and the driving motor drives the power rod 9 to reciprocate. When the power rod 9 moves forward and drives the transmission rod 4 to move forward, it drives the needle thread 3 to extend out of the mouth of the needle shell 1, and the spring leather cover 5 is stretched at the same time. When the power rod 9 moves backward, the spring leather cover 5 retracts. Since the front end of the spring leather cover 5 is tightly sleeved on the first sealing ring 16 of the transmission rod 4, the retraction of the spring leather cover 5 will pull the transmission rod 3 back, that is, pull the needle thread 3 back into the needle shell 1, and reciprocate in this cycle.

[0053] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-capacity tattoo integrated needle, comprising: The needle shell has a pointed mouth at its front end, an ink storage cavity formed in the middle and a central opening formed on the peripheral surface, and an open rear end; A rear cover, which is arranged on the opening at the rear end of the needle housing; a needle wire installed in the needle housing and capable of extending from the mouth of the needle housing; A transmission part, the rear end of which is passed through the rear cover and the front end of which is fixedly connected to the needle thread; The invention is characterized in that: the integrated needle further comprises a one-way valve arranged on the middle opening, and a spring leather sleeve sleeved on the transmission part or the needle wire and sealingly fitted with the inner wall of the needle shell.

2. The large-capacity integrated tattoo needle according to claim 1, characterized in that: The one-way valve is a silicone one-way valve.

3. The large-capacity integrated tattoo needle according to claim 1, characterized in that: The spring leather sleeve is made of silica gel, a rear end sealing sleeve is arranged on the end of the rear cover located inside the needle shell, and a front end sealing sleeve is arranged on the transmission part.

4. The large-capacity integrated tattoo needle according to claim 3, characterized in that: The transmission part comprises a transmission rod, the middle section of which is in the shape of a quadrangular prism, and the rear cover is provided with a quadrangular prism-shaped hole matching the middle section of the transmission rod.

5. The large-capacity integrated tattoo needle according to claim 4, characterized in that: An annular first sealing ring is formed below the middle section of the transmission rod, and a sealing sleeve at the front end of the spring leather sleeve is arranged on the first sealing ring.

6. The large-capacity integrated tattoo needle according to claim 5, characterized in that: The first sealing ring is in a frustum shape with a thick front side and a thin rear side.

7. A method for using a large-reserve integrated tattoo needle based on any one of claims 1-6, wherein the internal volume of the shell when the leather case is retracted is V1, and the internal pressure is P1; when the leather case is extended, the internal volume of the shell is V2, and the internal pressure is P2. When the leather case is extended, the increased pressure inside the shell is △P, the compressed volume is △V, the volume discharged at the air valve is △V1, and the volume discharged at the needle mouth gap is △V2. The standard atmospheric pressure is P0, the air valve opening pressure is Pk, and the frequency of the reciprocating motion of the needle wire is f. The method of use is: make 3HZ≤f≤250HZ, P0≤Pk≤2 / 3△P, or 0<△V2≤0.05△V needle mouth.

8. The method of use according to claim 7, characterized in that: According to the gas state equation theorem in physics, when the ambient temperature remains unchanged, the pressure of the gas is inversely proportional to its volume, that is, P1V1=P2V2, then △P=P2-P1=P2-P2×V2 / V1, P0≤P k ≤1 / 2(P2-P2×V2 / V1).

9. The method of use according to claim 8, characterized in that: P0<Pk≤106.7Kpa.

10. A tattoo device, comprising a grip, a driving unit installed in the grip, and a tattoo needle, wherein the grip is cylindrical, the driving unit comprises a driving motor installed in the grip, an eccentric wheel fixed on the driving motor, a follower wheel sleeved on the eccentric wheel and rotatably connected to the eccentric wheel, a flexible transmission wire with a rear end connected between the follower wheel and the tattoo needle, and a power rod connected to the front end of the transmission wire, characterized in that: The integrated tattoo needle is the large-reserve integrated tattoo needle as described in any one of claims 1 to 6, and the front end of the power rod is pressed on the rear end surface of the integrated tattoo needle.

11. The tattoo device according to claim 10, characterized in that: A front end portion of the holding portion is provided with a front end mounting hole, a middle mounting hole connected to the front end mounting hole is provided in the holding portion and located at the rear side of the front end mounting hole, the driving motor is installed in the holding portion and located at the rear side of the middle mounting hole, the rear end portion of the tattoo integrated needle and the power rod are inserted into the middle mounting hole, the power rod has a spherical guide head, a recessed and arc-shaped guide surface is provided at the center of the rear end surface of the transmission rod, the guide head is pressed on the guide surface, the rear cover is fixedly installed in the front end mounting hole, the guide head is located in the middle mounting hole and is gap-matched with the middle mounting hole.

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