CN215397591U

CN215397591U - Fire extinguisher double-colored positioner for lithography apparatus

Info

Publication number: CN215397591U
Application number: CN202122115107.9U
Authority: CN
Inventors: 何小成; 何汉超
Original assignee: Yuyao Chaocheng Machinery Manufacturing Co ltd
Current assignee: Yuyao Chaocheng Machinery Manufacturing Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-01-04
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses a positioning device for fire extinguisher double-color printing equipment, which comprises a first positioning adjusting device, a second positioning adjusting device, a servo motor, a tightening cylinder, a front conical head, a positioning deflector rod, a first induction switch, a rear conical head, a second induction switch, a lifting cylinder and a fire extinguisher auxiliary rotating device, wherein the first positioning adjusting device and the second positioning adjusting device are respectively arranged at the left side and the right side of a frame, the servo motor is arranged on the first positioning adjusting device, the tightening cylinder is arranged on the second positioning adjusting device, and the front conical head is arranged on the output end of the servo motor. The stability of the fire extinguisher is ensured.

Description

Fire extinguisher double-colored positioner for lithography apparatus

Technical Field

The utility model relates to the technical field of fire extinguisher printing equipment, in particular to a positioning device for fire extinguisher double-color printing equipment.

Background

The fire extinguisher is when carrying out the label silk screen printing, need regard as the benchmark with the handle to fix a position, but the handle is great for the clearance of fire extinguisher bottle jar, when double-colored or polychrome silk screen printing, the inaccurate and big scheduling problem of the label positional deviation of printing in label silk screen printing position can appear, cause the higher defective rate of fire extinguisher label silk screen printing, the bottle when the fire extinguisher is oval or the bottom surface unevenness especially can lead to the unstability of fire extinguisher memo silk screen printing quality, and current equipment only directly fixes a position still has certain error through positioning sensor, and the upset of fire extinguisher is stable inadequately in the printing process, rock easily and lead to the printing quality to reduce, the printing is scrapped even, the increase cost, for this reason, provide a fire extinguisher is positioner for double-colored lithography apparatus, in order to overcome the emergence of above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides a positioning device for fire extinguisher double-color printing equipment, which comprises a first positioning adjusting device, a second positioning adjusting device, a servo motor, a jacking cylinder, a front conical head, a positioning deflector rod, a first induction switch, a rear conical head, a second induction switch, a lifting cylinder and an auxiliary fire extinguisher rotating device, wherein the first positioning adjusting device and the second positioning adjusting device are respectively arranged at the left side and the right side of a frame, the servo motor is arranged on the first positioning adjusting device, the jacking cylinder is arranged on the second positioning adjusting device, the front conical head is arranged at the output end of the servo motor, the positioning deflector rod is arranged at the output end of the servo motor near the first induction switch, the rear conical head is arranged at the output end of the jacking cylinder, the fire extinguisher lifting device is characterized in that a second induction switch is arranged below the jacking cylinder below the rear conical head, a lifting cylinder is arranged between the first positioning adjusting device and the second positioning adjusting device, an auxiliary fire extinguisher rotating device is arranged at the output end of the lifting cylinder, the lifting cylinder and the auxiliary fire extinguisher rotating device are arranged in a movable room, and the movable room is arranged in the middle of the rack.

As preferred, first positioning adjustment device, second positioning adjustment device all include the backup pad, set up spacing slide rail respectively on the backup pad left and right sides, set up the slider on the spacing slide rail and be connected with the installation riser, establish threaded connection adjusting screw in the installation riser bottom, adjusting screw is fixed in on the backup pad middle part, sets up logical groove in the installation riser, it sets up spacing slider to lead to the inslot activity, and spacing slider right-hand member top female connection assists adjusting screw, supplementary adjusting screw top sets up in installation riser right-hand member top, and spacing slider outside end fixed connection servo motor in the first positioning adjustment device, the tight cylinder in spacing slider medial extremity fixed connection top of second positioning adjustment device.

Preferably, a shaft sleeve is fixedly arranged on a limiting sliding block in the first positioning adjusting device and movably connected with the output end of the servo motor, a sensor mounting plate is arranged on the shaft sleeve, a mounting groove is formed in the sensor mounting plate, first induction switches are arranged beside one side of the positioning deflector rod in the left side and the right side of the mounting groove respectively, and the first induction switches are connected with the sensor mounting plate through locking nuts.

Preferably, fire extinguisher rotation assisting device includes U type backup pad, and U type backup pad is connected with the lift cylinder output, sets up the auxiliary cylinder in U type backup pad one end inboard, and the other driving plate that sets up of auxiliary cylinder output, the driving plate passes through slider cooperation slide rail and U type backup pad sliding connection, keeps away from auxiliary cylinder one end at the driving plate and sets up reset spring outward, and outside the screw rod was located to the reset spring cover, the screw rod ran through the driving plate, on the screw rod was fixed in the auxiliary backup pad, on the auxiliary backup pad was fixed in U type backup pad, be connected with the nylon deceleration wheel through the connecting rod in the driving plate was close to auxiliary cylinder one end, the connecting rod activity set up in the spacing inslot, and the spacing inslot is seted up in U type backup pad curb plate, the U type backup pad left and right sides is the activity respectively outward and is set up the rubber wheel, and the nylon deceleration wheel sets up in rubber wheel is one side.

Preferably, the frame is provided with a conveying belt, the two sides of the conveying belt are respectively provided with a plurality of Y-shaped support frames of fire extinguisher bottles at equal intervals, fire extinguishers are arranged on the Y-shaped support frames of the fire extinguisher bottles, an L-shaped support plate is arranged on one side of the frame, a printing frame is arranged on the L-shaped support plate and connected with a printing knife plate, a silk screen plate is arranged on a silk screen plate support below the printing knife plate, and the silk screen plate support is fixed on the L-shaped support plate.

Preferably, the servo motor, the jacking cylinder, the first induction switch, the second induction switch, the lifting cylinder and the auxiliary cylinder are electrically connected with the PLC control box.

The utility model has the beneficial effects that: structural design is reasonable, through the tight cylinder work in servo motor cooperation top make the circular cone head with the tight location in fire extinguisher bottle top, utilize sensor and location driving lever to fix a position the fire extinguisher handle simultaneously, the precision that makes the two-color in-process of printing is accurate, the deviation is little, accord with international standard, the clearance when fire extinguisher auxiliary rotating device cooperation circular cone head and sensor work have effectually eliminated the fire extinguisher printing, stability when guaranteeing the fire extinguisher rotation, the influence of the printing precision that the specification difference of having reduced the fire extinguisher brought, servo motor's work effect has improved the precision when rotatory fire extinguisher more greatly.

Drawings

The utility model will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic perspective view of the first positioning adjustment device, the second positioning adjustment device and the fire extinguisher auxiliary rotating device according to the present invention;

FIG. 4 is a schematic perspective view of an auxiliary rotating device of the fire extinguisher according to the present invention;

FIG. 5 is a schematic perspective view of an auxiliary rotating device of the fire extinguisher according to the present invention;

FIG. 6 is a schematic perspective view of a first positioning adjustment device according to the present invention;

FIG. 7 is a schematic perspective view of a first positioning adjustment device according to the present invention;

fig. 8 is a side view schematic of the present invention.

In the figure: 1. a first positioning adjustment device; 2. a second positioning adjustment device; 3. a servo motor; 4. tightly pushing the air cylinder; 5. a front conical head; 6. positioning a deflector rod; 7. a first inductive switch; 8. a rear conical head; 9. a second inductive switch; 10. a lifting cylinder; 11. an auxiliary rotating device of the fire extinguisher; 12. a frame; 13. a conveyor belt; 14. a fire extinguisher bottle Y-shaped support frame; 15. a fire extinguisher; 16. a movable room; 17. an L-shaped support plate; 18. a printing frame; 19. printing a knife plate; 20. a screen mesh plate; 21. a support plate; 22. a limiting slide rail; 23. installing a vertical plate; 24. adjusting the screw rod; 25. a through groove; 26. a limiting slide block; 27. an auxiliary adjusting screw; 28. a U-shaped support plate; 29. an auxiliary cylinder; 30. a drive plate; 31. a screw; 32. an auxiliary support plate; 33. a nylon speed-reducing wheel; 34. a rubber wheel; 35. a sensor mounting plate; 36. and (4) mounting the groove.

Detailed Description

Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

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

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, welded, riveted, bonded, and the like, or detachably connected, screwed, keyed, pinned, and the like, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The positioning device for the fire extinguisher double-color printing equipment as shown in figures 1-8 comprises a first positioning adjusting device 1, a second positioning adjusting device 2, a servo motor 3, a jacking cylinder 4, a front cone head 5, a positioning deflector rod 6, a first induction switch 7, a rear cone head 8, a second induction switch 9, a lifting cylinder 10 and a fire extinguisher auxiliary rotating device 11, wherein the first positioning adjusting device 1 and the second positioning adjusting device 2 are respectively arranged at the left side and the right side of a frame 12, the servo motor 3 is arranged on the first positioning adjusting device 1, the jacking cylinder 4 is arranged on the second positioning adjusting device 2, the front cone head 5 is arranged at the output end of the servo motor 3, the positioning deflector rod 6 is arranged at the output end of the servo motor 3 beside the front cone head 5, the first induction switch 7 is arranged on the first positioning adjusting device 1 beside one end of the positioning deflector rod 6 close to the servo motor 3, the output end of the jacking cylinder 4 is provided with a rear conical head 8, a second induction switch 9 is arranged below the rear conical head 8 and below the jacking cylinder 4, a lifting cylinder 10 is arranged between the first positioning adjusting device 1 and the second positioning adjusting device 2, the output end of the lifting cylinder 10 is provided with an auxiliary fire extinguisher rotating device 11, the lifting cylinder 10 and the auxiliary fire extinguisher rotating device 11 are arranged in a movable room 16, and the movable room 16 is arranged in the middle of the frame 12. First positioning adjustment device 1, second positioning adjustment device 2 all include backup pad 21, set up spacing slide rail 22 on the backup pad 21 left and right sides respectively, set up the slider on the spacing slide rail 22 and be connected with installation riser 23, establish threaded connection adjusting screw 24 in the installation riser 23 bottom, adjusting screw 24 is fixed in on the backup pad 21 middle part, sets up logical groove 25 in installation riser 23, the activity sets up spacing slider 26 through groove 25 internalization, and spacing slider 26 right-hand member top female connection assists adjusting screw 27, assist adjusting screw 27 top and set up in installation riser 23 right-hand member top, spacing slider 26 outside end fixed connection servo motor 3 in the first positioning adjustment device 1, the tight cylinder 4 in the inboard fixed connection top of spacing slider 26 of second positioning adjustment device 2. The utility model discloses a sensor positioning device, including first positioning adjusting device 1, spacing slider 26 in first positioning adjusting device 1 goes up the fixed axle sleeve that sets up and servo motor 3 output swing joint, sets up sensor mounting panel 35 on the axle sleeve, set up mounting groove 36 in the sensor mounting panel 35, set up first inductive switch 7 respectively in the 36 left and right sides of mounting groove by 6 one side of location driving lever, first inductive switch 7 passes through lock nut and is connected with sensor mounting panel 35. The fire extinguisher auxiliary rotating device 11 comprises a U-shaped supporting plate 28, the U-shaped supporting plate 28 is connected with the output end of a lifting cylinder 10, an auxiliary cylinder 29 is arranged at the inner side of one end of the U-shaped supporting plate 28, a driving plate 30 is arranged beside the output end of the auxiliary cylinder 29, the driving plate 30 is in sliding connection with the U-shaped supporting plate 28 through a slide block matched slide rail, a reset spring is arranged outside one end, far away from the auxiliary cylinder 29, of the driving plate 30, the reset spring is sleeved outside a screw rod 31, the screw rod 31 penetrates through the driving plate 30, the screw rod 31 is fixed on the auxiliary supporting plate 32, the auxiliary supporting plate 32 is fixed on the U-shaped supporting plate 28, the driving plate 30 is connected with a nylon speed reducing wheel 33 through a connecting rod in one end, close to the auxiliary cylinder 29, the connecting rod is movably arranged in a limiting groove, the limiting groove is arranged in a side plate of the U-shaped supporting plate 28, rubber wheels 34 are respectively and movably arranged outside the left side and the right side of the U-shaped supporting plate 28, the nylon deceleration wheel 33 is arranged beside the rubber wheel 34. Set up conveyer belt 13 in the frame 12, conveyer belt 13 both sides respectively even equidistance set up a plurality of fire extinguisher bottle Y type support frames 14, set up fire extinguisher 15 on the fire extinguisher bottle Y type support frame 14, set up L type backup pad 17 on frame 12 one side, it is connected with printing sword version 19 to set up printing frame 18 in the L

type backup pad

17, 19 below in the printing sword version set up silk screen net board 20 on the silk screen net board support, and the silk screen net board support is fixed in on L type backup pad 17. The servo motor 3, the jacking cylinder 4, the first induction switch 7, the second induction switch 9, the lifting cylinder 10 and the auxiliary cylinder 29 are all electrically connected with the PLC control box. The adjusting screw 24 and the auxiliary adjusting screw 27 can respectively adjust the height and the working position of the servo motor 3 and the jacking cylinder 4, and are suitable for positioning fire extinguishers of different specifications. The rear conical head 8 and the front conical head 5 are both made of nylon materials and are on the same central line. The positioning deflector rod 6 rotates along with the rotation of the output end of the servo motor 3, and the front conical head 5 is movably arranged in the tail end of the output end of the servo motor 3 and can rotate freely. The rear conical head 8 and the front conical head 5 are both conical, so that the friction force of the fire extinguisher during printing is reduced, and the distance between the printing position of the fire extinguisher and the welding position and the height of the fire extinguisher are the same. The rubber sleeve is sleeved at the tail end of the positioning deflector rod 6, so that the friction force between the positioning deflector rod 6 and the lifting and pressing handle is improved, and the positioning deflector rod 6 is prevented from slipping when rotating to drive the lifting and pressing handle. The output end of the servo motor 3 is connected with the positioning deflector rod 6 through a planetary reducer, so that the servo motor 3 works in cooperation with the planetary reducer to drive the positioning deflector rod 6 to rotate to a required working position.

The working principle of the specific embodiment is as follows: firstly, the servo motor 3 and the jacking cylinder 4 are adjusted to the required height and working position by utilizing the adjusting screw 24 and the auxiliary adjusting screw 27 according to requirements, the rear conical head 8 and the front conical head 5 are on the same central line, thus being suitable for positioning and printing products of different specifications, then the lifting cylinder 10 below the fire extinguisher 15 to be printed reaches a printing station and jacks up, at the moment, the fire extinguisher 15 is separated from the Y-shaped support frame 14 of the fire extinguisher bottle and is positioned on the rubber wheel 34 of the auxiliary rotating device 11 of the fire extinguisher, the rubber wheel 34 can rotate freely by matching with a bearing, after the second induction switch 9 below the jacking cylinder 4 at the rear part of the bottom part of the fire extinguisher 15 induces that the fire extinguisher 15 reaches each position, the jacking cylinder 4 works to drive the rear conical head 8 to jack up forwards, at the moment, the lifting pressure of the fire extinguisher presses the head part against the front conical head 5 to achieve the effect of positioning center, and simultaneously achieves the distance between the positioning and printing position and the front conical head 5, the distance between the printing position of each fire extinguisher and the front conical head 5 is the same, then the top tight cylinder 4 is retracted, at the moment, the positioning deflector rod 6 is positioned right above the mouth of the fire extinguisher 15 and is the original position, the servo motor 3 works to drive the positioning deflector rod 6 to rotate to a required angle to stir the fire extinguisher lifting handle, and when the positioning deflector rod 6 is close to the fire extinguisher lifting handle, the rotating speed of the output end of the servo motor 3 is reduced to slowly abut against the fire extinguisher lifting handle and then is shifted to a specified position, the positioning deflector rod 6 ensures the positioning speed of the yield efficiency and the positioning speed, and simultaneously reduces the buffer caused by the over-fast fluctuation speed, thereby avoiding influencing the precision of the product after printing, controlling the direction of the fire extinguisher 15 in the initial direction of printing, ensuring the same printing initial direction of each fire extinguisher 15, after the positioning, reversing the positioning deflector rod 6 to the specified position to be far away from the fire extinguisher 15 lifting handle, then the printing knife plate 19 descends to be attached to the surface of the fire extinguisher, the positioning deflector rod 6 does not touch the pressure lifting handle of the fire extinguisher in the printing process, before the printing work of the fire extinguisher 15 starts, the fire extinguisher auxiliary rotating device 11 is always in a braking state, so that the output end of the auxiliary cylinder 29 in the fire extinguisher auxiliary rotating device 11 is in a contraction state, the driving plate 30 is under the acting force of the reset spring to drive the nylon speed reducing wheel 33 to move towards one side of the rubber wheel 34, the nylon speed reducing wheel 33 is attached to the rubber wheel 34 to play a certain braking role, the situation that the fire extinguisher 15 shakes due to inertia of dry powder in the fire extinguisher 15 cannot be accurately positioned is avoided, when the printing starts, the auxiliary cylinder 29 works to push the driving plate 30, the nylon speed reducing wheel 33 is driven to move away from the rubber wheel 34, the nylon speed reducing wheel is in a loosening state at the moment, the printing quality is ensured by matching with the printing, and the screen mesh 20 and the product stop simultaneously when the printing starts and stops, The left knife plate on the printing frame 18 descends, printing ink is stirred to flow towards the printing direction, after printing is completed, the working output end of the nylon speed reducing wheel 33 contracts through the auxiliary cylinder 29, the nylon speed reducing wheel is attached to the rubber wheel 34 again through the action force of the reset spring to achieve the braking effect, the positioning deflector rod 6 rotates to the original position to wait, the lifting and pressing handle is reset to the initial position, the positions of the fire extinguisher lifting and pressing handle before and after printing are the same, meanwhile, the screen mesh plate 20 ascends to separate from the surface of the attached fire extinguisher, the left knife plate ascends, the right knife plate descends, the screen mesh plate 20 reversely moves to return to the original position and synchronously goes on, the lifting cylinder 10 descends, the conveying belt 13 continues to move forwards, and the next fire extinguisher 15 is waited to enter a printing station.

The utility model is not limited to the foregoing embodiments. The utility model extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.

Claims

1. The utility model provides a double-colored positioner for lithography apparatus of fire extinguisher, includes first positioning adjustment device (1), second positioning adjustment device (2), servo motor (3), tight cylinder in top (4), preceding circular cone head (5), location driving lever (6), first inductive switch (7), back circular cone head (8), second inductive switch (9), lift cylinder (10) and fire extinguisher auxiliary rotating device (11), its characterized in that: the first positioning adjusting device (1) and the second positioning adjusting device (2) are respectively arranged at the left side and the right side of a frame (12), a servo motor (3) is arranged on the first positioning adjusting device (1), a jacking cylinder (4) is arranged on the second positioning adjusting device (2), a front conical head (5) is arranged at the output end of the servo motor (3), a positioning deflector rod (6) is arranged beside the front conical head (5) and is arranged at the output end of the servo motor (3), a first induction switch (7) is arranged beside one end of the positioning deflector rod (6) close to the servo motor (3) and is arranged on the first positioning adjusting device (1), a rear conical head (8) is arranged at the output end of the jacking cylinder (4), a second induction switch (9) is arranged below the jacking cylinder (4) below the rear conical head (8), and a lifting cylinder (10) is arranged between the first positioning adjusting device (1) and the second positioning adjusting device (2), the fire extinguisher auxiliary rotating device (11) is arranged at the output end of the lifting cylinder (10), the lifting cylinder (10) and the fire extinguisher auxiliary rotating device (11) are arranged in the movable room (16), and the movable room (16) is arranged in the middle of the rack (12).

2. The positioning device for the two-color printing equipment of the fire extinguisher according to claim 1, characterized in that: first location adjusting device (1), second location adjusting device (2) all include backup pad (21), set up spacing slide rail (22) on backup pad (21) the left and right sides respectively, set up the slider on spacing slide rail (22) and be connected with installation riser (23), establish threaded connection adjusting screw (24) in installation riser (23) bottom, on adjusting screw (24) were fixed in backup pad (21) middle part, seted up logical groove (25) in installation riser (23), logical groove (25) internalization sets up spacing slider (26), spacing slider (26) right-hand member top internal thread connection auxiliary adjusting screw (27), auxiliary adjusting screw (27) top sets up in installation riser (23) top, spacing slider (26) outside end fixed connection servo motor (3) in first location adjusting device (1), the inboard end fixed connection top tight cylinder (4) of spacing slider (26) of second location adjusting device (2) .

3. The positioning device for the two-color printing equipment of the fire extinguisher according to claim 2, characterized in that: fixed axle sleeve and servo motor (3) output swing joint of setting up on spacing slider (26) in first positioning adjustment device (1), set up sensor mounting panel (35) on the axle sleeve, set up mounting groove (36) in sensor mounting panel (35), set up first inductive switch (7) respectively in the mounting groove (36) left and right sides by in location driving lever (6) one side, first inductive switch (7) are connected with sensor mounting panel (35) through lock nut.

4. The positioning device for the two-color printing equipment of the fire extinguisher according to claim 1, characterized in that: the fire extinguisher auxiliary rotating device (11) comprises a U-shaped supporting plate (28), the U-shaped supporting plate (28) is connected with the output end of a lifting cylinder (10), an auxiliary cylinder (29) is arranged on the inner side of one end of the U-shaped supporting plate (28), a driving plate (30) is arranged beside the output end of the auxiliary cylinder (29), the driving plate (30) is in sliding connection with the U-shaped supporting plate (28) through a sliding block matched sliding rail, a reset spring is arranged outside one end, far away from the auxiliary cylinder (29), of the driving plate (30) and sleeved outside a screw rod (31), the screw rod (31) penetrates through the driving plate (30), the screw rod (31) is fixed on the auxiliary supporting plate (32), the auxiliary supporting plate (32) is fixed on the U-shaped supporting plate (28), the driving plate (30) is connected with a nylon speed reducing wheel (33) through a connecting rod in one end, close to the auxiliary cylinder (29), and the connecting rod is movably arranged in a limiting groove, the limiting groove is formed in a side plate of the U-shaped supporting plate (28), the rubber wheels (34) are movably arranged on the left side and the right side of the U-shaped supporting plate (28) respectively, and the nylon speed reducing wheels (33) are arranged beside one side of the rubber wheels (34).

5. The positioning device for the two-color printing equipment of the fire extinguisher according to claim 1, characterized in that: set up conveyer belt (13) on frame (12), even equidistance setting a plurality of fire extinguisher bottle Y type support frames (14) respectively in conveyer belt (13) both sides, set up fire extinguisher (15) on fire extinguisher bottle Y type support frame (14), set up L type backup pad (17) on frame (12) one side, set up on L type backup pad (17) printing frame (18) and be connected with printing sword version (19), printing sword version (19) below sets up silk screen net board (20) on silk screen net board support, and silk screen net board support is fixed in on L type backup pad (17).

6. The positioning device for the two-color printing equipment of the fire extinguisher according to claim 4, characterized in that: the servo motor (3), the jacking cylinder (4), the first induction switch (7), the second induction switch (9), the lifting cylinder (10) and the auxiliary cylinder (29) are all electrically connected with the PLC control box.