CN211461758U

CN211461758U - Tattooing pen and upper adjusting direct-drive device thereof

Info

Publication number: CN211461758U
Application number: CN201921149222.4U
Authority: CN
Inventors: 胡伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-09-11
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a tattooing machine and an upper adjusting direct-drive device thereof, wherein the upper adjusting direct-drive device comprises an upper fixed cylinder, a motor cylinder, a power interface, a driving motor and an end face cam; the motor barrel is arranged in a hollow mode and comprises a connecting part and a screwing part arranged on the connecting part, first threads are arranged on the outer wall of the connecting part, a power supply interface and a driving motor are fixedly arranged in the motor barrel, the power supply interface corresponds to the screwing part, a rotating shaft of the driving motor is arranged towards the bottom end of the connecting part, an end face cam is arranged on the rotating shaft, and a cam face of the end face cam is arranged towards the direction far away from the screwing part; the upper fixed cylinder is arranged in a hollow mode, and second threads matched with the first threads are arranged on the inner wall of the upper fixed cylinder; a first step used for being abutted against the upper end of the second thread is further arranged on the outer wall of the motor barrel close to the upper end; and a limiting structure used for being abutted against the lower end of the second thread is further arranged on the outer wall of the motor barrel close to the lower end. The utility model provides a among the prior art line embroidery pen cause the problem of maloperation easily.

Description

Tattooing pen and upper adjusting direct-drive device thereof

Technical Field

The utility model relates to a skin puncture cosmetic field especially relates to a line embroidery pen and go up to adjust and directly drive device.

Background

In the beauty industry, tattooing pens such as beauty pens, eyebrow tattooing pens, and tattooing pens are often used for beauty treatment. The inner structure of the tattooing pen comprises an upper adjusting direct-drive device for pushing the needle body to puncture in a reciprocating manner and a puncture assembly comprising a puncture needle body, wherein in the prior art, the puncture depth of the needle body of the tattooing pen can be adjusted by a depth adjusting knob of the holding part when the needle body of the tattooing pen punctures repeatedly, and misoperation is easily caused under the using state.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a tattooing pen and an upper adjusting direct-drive device thereof, aiming at the problem that the depth adjusting motor barrel is arranged at the holding part of the tattooing pen, which is easy to cause misoperation.

The utility model provides an upper adjusting direct drive device, which comprises an upper fixed cylinder, a motor cylinder, a power interface, a drive motor and an end face cam;

the motor barrel is arranged in a hollow mode and comprises a connecting part and a screwing part arranged on the connecting part, first threads are arranged on the outer wall of the connecting part, the power supply interface and the driving motor are fixedly arranged in the motor barrel, the power supply interface corresponds to the screwing part, a rotating shaft of the driving motor is arranged towards the bottom end of the connecting part, the end face cam is arranged on the rotating shaft, and a cam surface of the end face cam is arranged towards the direction far away from the screwing part;

the upper fixed cylinder is arranged in a hollow mode, and second threads matched with the first threads are arranged on the inner wall of the upper fixed cylinder;

a first step used for being abutted against the upper end of the second thread is further arranged on the outer wall of the motor barrel close to the upper end;

a limiting structure used for being abutted against the lower end of the second thread is further arranged on the outer wall of the motor barrel close to the lower end,

the limiting structure comprises a limiting ring and a first groove, the outer wall of the motor cylinder is located below the first threads, a limiting hook matched with the first groove extends inwards on the inner wall of the limiting ring, and the limiting part is used for being abutted to the lower end of the second threads.

Preferably, the lower end of the screwing part is inserted into the connecting part and is in threaded connection with the connecting part, the upper end of the driving motor is abutted against the lower end of the screwing part, and the lower end of the connecting part is closed and arranged and is abutted against the lower end of the main body of the driving motor.

Preferably, the power interface comprises a welding end and a plugging end, the electrode of the driving motor is arranged at the top of the main body of the driving motor, and the welding end of the power interface is fixedly arranged on the driving motor and is welded with the electrode; or the power interface is fixedly arranged in the screwing part, and the welding end of the power interface is connected with the electrode through a lead.

Preferably, the upper adjusting direct-drive device further comprises a bottom shell which is arranged at the lower end of the upper fixing barrel and used for accommodating the end face cam, and the outer wall of the lower end of the bottom shell is used for being in butt joint with the puncture assembly.

Preferably, the outer wall of the upper end of the upper fixed cylinder is provided with an adjusting scale, and the motor cylinder is provided with a mark point corresponding to the adjusting scale; or the outer wall of the motor barrel is provided with an adjusting scale close to the upper end of the upper fixed barrel, and the upper fixed barrel is provided with a mark point corresponding to the adjusting scale.

The utility model discloses still provide a line embroidery pen, including foretell go up adjust directly drive the device and with go up to adjust and directly drive the puncture subassembly that the device connects.

Preferably, the upper adjusting direct drive device is in plug connection or threaded connection with the puncture assembly.

Preferably, the tattooing pen is characterized in that the puncture assembly comprises:

the lower shell is arranged in a hollow mode and comprises a needle outlet arranged at the lower part and a connecting port arranged at the upper part and connected with the upper fixed cylinder;

the guide fixing plug is arranged in the lower shell and comprises a limiting hole;

the push rod penetrates through the guide fixing plug and comprises a limiting part in sliding connection with the limiting hole and a needle pushing part which is connected with the limiting part and arranged downwards;

the eccentric bulge is arranged at the top end of the limiting part, is not concentric with the push rod and is abutted against the cam surface;

the elastic piece is arranged on the push rod and provides elastic force for enabling the push needle part to move upwards;

the needle body is arranged at the bottom end of the needle pushing part and corresponds to the needle outlet.

In this embodiment, by providing the upper adjustment direct drive device including the upper fixing barrel, the motor barrel, the power interface, the driving motor and the end cam, the power interface and the driving motor are fixedly disposed in the motor barrel, the cam surface of the end cam is disposed on the rotating shaft of the driving motor facing downward, and the inner wall of the upper fixing barrel and the outer wall of the motor barrel are provided with adaptive threads, the screwing part at the upper end of the motor barrel is disposed protruding from the upper fixing barrel, and when screwing the upper part of the motor barrel, the upper fixing barrel correspondingly lifts in the upper fixing barrel, and when the lower end of the upper fixing barrel is connected with the puncture assembly, the lifting of the motor barrel correspondingly controls the extension length of the puncture assembly, and simultaneously the motor barrel can be limited from being screwed out from the upper fixing barrel by disposing the first step and the limit structure, compared with the prior art, in the manner of adjusting at the middle section holding part, the utility model realizes top adjustment, the problem of maloperation is solved.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a middle-upper adjusting direct-drive device of the present invention;

FIG. 2 is a schematic structural diagram of a limiting structure in the embodiment of FIG. 1;

fig. 3 is a schematic structural view of another embodiment of the middle-upper adjusting direct-drive device of the present invention;

fig. 4 is a schematic structural view of another embodiment of the middle-upper adjusting direct-drive device of the present invention;

FIG. 5 is a schematic structural view of an embodiment of the puncturing assembly of the present invention;

FIG. 6 is a schematic structural view of another embodiment of the spike assembly of the present invention;

fig. 7 is a schematic structural view of a further embodiment of the puncture assembly of the present invention;

fig. 8 is a schematic structural view of the eccentric protrusion in the embodiment of fig. 5 to 7.

Detailed Description

Example 1:

the utility model provides an upper adjusting inner drive device, referring to fig. 1, the upper adjusting inner drive device comprises an upper fixed cylinder 10, a motor cylinder 21, a power interface 22, a drive motor 23 and an end cam 24; the motor barrel 21 is hollow and comprises a connecting part 21b and a screwing part 21a arranged on the connecting part, the outer wall of the connecting part 21b is provided with a first screw thread 21c, the power interface 22 and the driving motor 23 are fixedly arranged in the motor barrel 21, the power interface 22 corresponds to the screwing part 21a, the rotating shaft of the driving motor 23 is arranged towards the bottom end of the connecting part 21b, the end face cam 24 is arranged on the rotating shaft, and the cam surface of the end face cam 23 is arranged towards the direction far away from the screwing part 21 a; the upper fixed cylinder 10 is arranged in a hollow manner, and the inner wall of the upper fixed cylinder is provided with a second thread 10a matched with the first thread 21 c; the outer wall of the motor barrel 21 is also provided with a first step 21d close to the upper end for abutting against the upper end of the second thread 10 a; the outer wall of the motor barrel 21 near the lower end is also provided with a limiting structure for abutting against the lower end of the second thread 10 a.

During screwing of the motor barrel 21, the limiting structure abuts against the lower end of the second thread 10a to prevent the motor barrel 21 from falling off from the upper end of the upper fixed barrel 10, and the first step 21d is arranged to prevent the motor barrel 21 from falling off from the lower end of the upper fixed barrel 10.

In the present embodiment, the motor cartridge 21 includes a screw part 21a and a coupling part 21b accommodating the driving motor 23, and the screw part 21a is screwed into the coupling part 21b and coupled with an upper inner wall thereof. The upper end of the driving motor 23 is abutted with the lower end of the screwing part 21a, the lower end of the connecting part 21b is closed and arranged and abutted with the lower end of the driving motor 23 main body, and the first thread 21c is arranged on the outer wall of the connecting part 21 b. The power interface 22 comprises a welding end and a plugging end, the electrode of the driving motor 23 is arranged at the top of the main body of the driving motor, the power interface 22 is fixedly arranged at the top of the driving motor 23, and the welding end of the power interface is welded with the electrode; alternatively, the power interface 22 is fixedly arranged in the screwing part 21a, and the welding end of the power interface 22 is connected with the electrode of the driving motor 23 through a lead.

Referring to fig. 2, in the present embodiment, the limiting structure includes a limiting ring 25 and a first groove 10b disposed on an outer wall of the motor barrel 21 and located below the first thread 21c, a limiting hook 25a adapted to the first groove 10b extends inward from an inner wall of the limiting ring 25, and the limiting ring 25 is configured to abut against a lower end of the second thread 10 a. The lower end of the connecting portion 21b is provided with a certain taper, the limiting ring 25 is a plastic piece, the maximum inner diameter of the limiting ring is slightly larger than the outer diameter of the connecting portion 21b, the inner diameter of the limiting hook 25a is slightly smaller than the outer diameter of the connecting portion 21b, the upper portion of the limiting ring 25 is provided with a groove downwards, the limiting ring 25 is sleeved into the connecting portion 21b from below, the limiting hook 25a at the upper end is deformed and turned outwards, and when the limiting hook 25a is clamped into the first groove 10b, the limiting ring 25 is limited by the first groove 10b to move up and down. Therefore, during the screwing process of the motor barrel 21, the limiting ring 25 can abut against the lower end of the second thread 10a, and the motor barrel 21 is prevented from falling off from the upper end of the upper fixing barrel 10.

The utility model discloses a through setting up the upper adjustment direct drive device that includes last fixed cylinder 10, motor barrel 21, power source 22, driving motor 23 and end face cam 24, set up power source 22 and driving motor 23 fixedly in motor barrel 21, set up the cam face of end face cam 24 downwards in the pivot of driving motor 23, and set up the screw thread of adaptation at the inner wall of last fixed cylinder 10 and the outer wall of motor barrel 21, the upper end of motor barrel 21 is outstanding, when twisting the upper portion of motor barrel 21, the correspondence can go up and down in last fixed cylinder 10, after the lower extreme of last fixed cylinder 10 connects the puncture subassembly that has eccentric bulge, cam surface and eccentric bulge conflict, the rotation of inclined plane cam drives the round trip puncture of needle body of puncture subassembly, the lift of motor barrel 21 corresponds the extension length of the needle body in the control puncture subassembly, compared with prior art, in the mode of middle section grip portion regulation, the utility model discloses a top is adjusted, the problem of maloperation is solved.

Example 2:

further, a rotary shaft of the drive motor 23 is disposed downward and extends from the lower end of the motor cylinder 21, and an end cam 24 is disposed on the rotary shaft with its cam surface disposed downward. The bottom of the upper fixed cylinder 10 is also provided with a bottom shell 13, the bottom shell 13 is arranged in a penetrating way, and the lower end of the bottom shell 13 is inserted into the puncture assembly. Motor barrel 21 is liftable within a cavity formed by upper stationary barrel 10 and bottom housing 13, and corresponding end cam 24 is liftable in bottom housing 13.

Furthermore, an adjusting scale is arranged on the outer wall of the upper fixed cylinder 10 close to the motor cylinder 21, and a mark point corresponding to the adjusting scale is arranged on the motor cylinder 21; or, the outer wall of the motor barrel 21 is provided with an adjusting scale near the upper fixed barrel 10, and the upper fixed barrel 10 is provided with a mark point corresponding to the adjusting scale. In the present embodiment, the pitch of the first screw 21c and the second screw 10a is controlled to advance or retract the motor barrel 21 by 1 to 3mm in one rotation. This embodiment can be convenient for the accurate size of stretching out or retracting of control needle body 66 of user through setting up corresponding regulation scale and mark point, avoids the needle body 66 to stretch out the too big muscle tissue of stabbing of volume, has improved the security of line embroidery pen.

Example 3:

the utility model discloses still provide a line and embroider pen, refer to fig. 1 to 4, the line is embroidered the pen and is included foretell to adjust on and directly drive the device and with last the regulation and directly drive the puncture subassembly that the device is connected. The puncture assembly includes: a lower case 40 which is hollow and includes a needle outlet 42 provided at a lower portion and a connection port 41 provided at an upper portion and to which the upper fixed cylinder 10 is connected; a guide fixing plug 50 disposed in the lower case 40 and including a stopper hole 51; the push rod penetrates through the guide fixing plug 50 and comprises a limiting part 62 connected with the limiting hole 51 in a sliding mode and a push pin part 61 connected with the limiting part 62 and arranged downwards; an eccentric protrusion 63 which is provided at the top end of the stopper 62, is arranged eccentrically from the push rod, and abuts against the end cam 24; an elastic member 65 provided on the push rod and providing a biasing force for biasing the eccentric protrusion 63 against the end cam 24; the needle body 66 is disposed at the bottom end of the needle pushing portion 61 and corresponds to the needle outlet 42.

In this embodiment, the tattooing pen adopts the upper-adjustment direct-drive device of embodiment 1, in the puncture assembly, the lower housing 40 is conical in shape, the upper end of the lower housing is connected with the upper-adjustment direct-drive device, the lower end of the lower housing is provided with the needle outlet 43, the inner portion of the lower housing is provided with the positioning rib arranged along the axial direction, the guide fixing plug 50 is arranged in the lower housing 40, the outer shape of the guide fixing plug 50 is a double-layer cylindrical structure, the upper layer of the cylinder is larger than the lower layer of the cylinder, and the outer wall of the guide fixing plug 50 is provided. Be provided with spacing hole 51 in the upper end of direction fixed plug 50, spacing piece adaptation on spacing hole 51 and the push rod, in this embodiment, the appearance that spacing portion 62 was is square lamellar body, square body of rod and the special-shaped rod body etc. correspond spacing hole 51 and be bar hole, quad slit and dysmorphism hole etc.. The bottom of the limiting hole 51 is also provided with a through hole for the push pin part 61 of the push rod to pass through, and when the limiting part 62 moves to the bottom of the limiting hole 51, the push rod can be limited to continue moving downwards. The elastic member 65 may be a spring, a rubber sleeve, a silicone sleeve, etc. connecting the push rod and the guide fixing plug 50. The lower part of the positioning plate 62 is provided with a mounting protrusion 64, and the elastic element 65 is a spring with one end sleeved with the mounting protrusion 64 and the other end arranged in the limiting hole 51. The needle body 66 is arranged at the lower end of the needle pushing part 61 and can be bonded by inserting glue and the like. The eccentric protrusion 63 is disposed on the top of the limiting portion 62, wherein the push rod and the eccentric protrusion 63 are integrally disposed, and can be made of hard composite material such as teflon. Under the action of the elastic piece 65, the eccentric bulge 63 is abutted with the cam surface of the end face cam 24 in the upper adjusting direct drive device, and pushes the push rod to reciprocate up and down when the cam rotates. A needle outlet nozzle is also provided at the needle outlet 42 of the lower housing 40. Compared with the prior art in which a link mechanism is used for connecting the puncture assembly with the upper adjusting direct-drive device, the radial movement of the center of gravity is small, and the vibration and the noise are also small.

Referring to fig. 3, the lower section of the bottom shell 13 is cylindrical in shape to form an insertion portion, the outer diameter of the insertion portion is smaller than that of the fixed cylinder 10, a groove is further formed in the outer wall of the insertion portion, a rubber ring is further arranged in the groove, the insertion portion is inserted into the connection port 41 of the main shell 40, and the rubber ring plays a certain fixing role to increase the insertion friction force.

Referring to fig. 4, the outer wall of the insertion portion and the inner wall of the connection port 41 may be provided with matching threads, so that the upper adjustment direct drive device and the puncture assembly are in threaded connection.

Further, referring to fig. 5, the needle pushing portion 61 is rod-shaped, and the limiting portion 62 is a limiting piece extending upward from the top of the needle pushing portion 61. In this embodiment, the shape of the limiting piece is a square piece, and the square piece is correspondingly matched with the limiting hole 51 in the guide fixing plug and can slide up and down in the limiting hole 51. It should be noted that the shape of the limiting plate is not limited to a square plate, but may be other shapes such as round, trapezoid, and irregular shapes. Furthermore, the middle of the square piece is hollowed, the upper ends of two sides of the hollowed part are slightly thicker, and the lower ends of the hollowed part are slightly smaller, so that an inverted trapezoid is formed. The corresponding limiting hole 51 in the guide fixing plug 50 is a strip-shaped hole matched with the limiting piece, and a through hole for the push needle part 61 to pass through is formed in the bottom of the limiting hole 51, so that when the limiting piece moves to the bottom of the limiting hole 51, the push rod can be limited to continue to move downwards. The hollow limiting piece is solid relative to the solid structure, so that materials are saved, the mass is small, the inertia in the motion process is reduced, and the axial overall vibration of the device can be effectively reduced. Meanwhile, the structure of the limiting sheet and the limiting hole 51 is simpler, and the assembly difficulty is reduced.

Further, referring to fig. 5, the elastic member 65 is a silica gel sleeve, the upper end of the silica gel sleeve is sleeved with the bottom of the guide fixing plug 50, the lower end of the silica gel sleeve is sleeved with the push rod needle pushing portion 61, a third step and a second step are arranged in the lower shell 10 from the large end to the small end, the upper inner wall of the third step is sleeved with the upper end of the guide fixing plug 50, the upper inner wall of the second step is sleeved with the upper end of the silica gel sleeve and the lower end of the guide fixing plug 50, and the lower end of the guide fixing plug 50 is further provided with the annular protrusion 22. In this embodiment, the silica gel cover is cylinder or conical, and the interlude wall is thin, and both ends wall thickness, and the upper end outside is provided with protruding muscle, protruding muscle and annular bulge 22 can be better with casing 10 inner wall laminating is crowded tightly down, effectively prevents the ink refluence, and relative wire spring can reduce inside noise.

Example 4:

further, referring to fig. 6, a mounting protrusion 64 is downwardly disposed at the bottom of the limiting plate, the elastic member 65 is a spring, the spring is disposed in the limiting hole 51, and the upper end of the spring is sleeved on the mounting protrusion 64. In the present embodiment, the mounting protrusion 64 is correspondingly disposed right below the eccentric protrusion 63, so as to ensure that the elastic force direction of the spring is opposite to the eccentric protrusion 63 to reduce the vibration.

Example 5:

further, referring to fig. 7, the needle pushing portion 61 is rod-shaped, the limiting portion 62 is a limiting piece extending from the upper section of the needle pushing portion 61 to both sides and a limiting elastic strip 68 extending from both ends of the limiting piece downwards, the needle pushing portion 61 is further provided with a limiting protrusion 69, the elastic member 65 is a spring sleeved on the needle pushing portion 61, the upper end of the spring is abutted to the limiting protrusion 69, and the lower end of the spring is abutted to the inner wall of the lower shell 10. In this embodiment, the limiting hole 51 is a flat hole formed from top to bottom, the elastic limiting strip 68 is disposed in the flat hole, and during the pushing process of the push rod, the elastic limiting strip 68 abuts against the inner wall of the closed flat hole and is compressed toward the center, and the elastic force thereof provides a component force for moving the push rod upward. In addition, the area between the limiting protrusion 69 arranged at the upper section of the push pin part 61 and the inner wall of the lower shell 10 is used for accommodating an elastic member 65, and the elastic member 65 is a spring which pushes the push rod to abut against the end face cam 24 in the upper adjusting direct drive device.

Further, referring to fig. 1 to 7, a first mounting hole 67 concentrically arranged with the push rod is further provided at the top end of the limiting sheet. In this embodiment, the center of the limiting piece is provided with a boss, the first mounting hole 67 is arranged on the boss, the boss and the end face cam 24 do not interfere with each other, and meanwhile, the rotating shaft of the motor 42 can be inserted into the first mounting hole 67 and is rotatably connected with the first mounting hole 67, so that the push rod and the rotating shaft of the motor 42 can be ensured to be arranged in a centering manner, and the radial run-out of the needle body 36 can be reduced.

Further, referring to fig. 1 to 7, a limit protruding point 61a is further disposed on the push rod, a limit groove 53 adapted to the limit protruding point 61a is further disposed on the guide fixing plug 50, and the limit protruding point 61a slides in the limit groove 53. In this embodiment, the stopper protrusion 61a and the stopper groove 53 are provided to prevent the push rod from falling off from the guide fixing plug 50.

Further, referring to fig. 8, the eccentric protrusion 63 further includes a first protruding point 63a and a second protruding point 63b, and a virtual connection line between the first protruding point 63a and the second protruding point 63b intersects with an axis of the push rod. In the present embodiment, the first salient point 63a is disposed on a side away from the axis, and the second salient point 63b is disposed on a side close to the axis. When the embroidery machine is vertically arranged with the needle body 36 facing downward, the first salient point 63a abuts against the cam surface when the lower point of the end cam 24 is opposite to the eccentric protrusion 63; when the high point of the end face cam 24 is opposed to the eccentric projection 63, the second salient point 63b abuts against the cam surface. Therefore, the first salient points 63a and the second salient points 63b are alternatively abutted against the cam surface, the abrasion of the eccentric protrusions 63 can be reduced through the crossed friction, the vibration and the noise are effectively reduced, and the service lives of the end face cam 24 and the push rod are prolonged.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An upper adjusting direct-drive device is characterized by comprising an upper fixed cylinder, a motor cylinder, a power interface, a driving motor and an end face cam;

the limiting structure comprises a limiting ring and a first groove, the outer wall of the motor cylinder is located below the first threads, a limiting hook matched with the first groove extends inwards on the inner wall of the limiting ring, and the limiting structure is used for being abutted to the lower end of the second threads.

2. The upper adjusting direct drive device according to claim 1, wherein the lower end of the screwing part is inserted into the connecting part and is in threaded connection with the connecting part, the upper end of the driving motor abuts against the lower end of the screwing part, and the lower end of the connecting part is closed and arranged and abuts against the lower end of the main body of the driving motor.

3. The upper adjusting direct drive device according to claim 2, wherein the power interface comprises a welding end and a plugging end, an electrode of the driving motor is arranged at the top of the main body of the driving motor, and the power interface is fixedly arranged on the driving motor, and the welding end of the power interface is welded with the electrode; or the power interface is fixedly arranged in the screwing part, and the welding end of the power interface is connected with the electrode through a lead.

4. The upper adjusting direct drive device according to claim 1, further comprising a bottom shell disposed at a lower end of the upper fixed cylinder and accommodating the end cam, wherein the bottom shell is disposed in a penetrating manner, and a lower end of the bottom shell is in butt joint with the puncture assembly.

5. The upper adjusting direct drive device according to any one of claims 1 to 4, wherein an adjusting scale is arranged on the outer wall of the upper end of the upper fixed cylinder, and a marking point corresponding to the adjusting scale is arranged on the motor cylinder; or the outer wall of the motor barrel is provided with an adjusting scale close to the upper end of the upper fixed barrel, and the upper fixed barrel is provided with a mark point corresponding to the adjusting scale.

6. A tattooing pen, comprising the upper adjusting direct-drive device according to any one of claims 1 to 5 and a puncture assembly connected with the upper adjusting direct-drive device.

7. The tattooing pen according to claim 6, wherein the upper adjusting direct-drive device is inserted into or screwed with the puncture assembly.

8. The tattooing pen according to claim 6, wherein the puncture assembly comprises: