CN112718304B

CN112718304B - Precise film-coated ink-jet structure

Info

Publication number: CN112718304B
Application number: CN202110005027.XA
Authority: CN
Inventors: 卢国明; 张国飞; 钟辉; 曾金城; 潘志伟; 江岱平
Original assignee: Shenzhen Tengsheng Precision Equipment Co ltd
Current assignee: Shenzhen Tengsheng Precision Equipment Co ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-12-21
Anticipated expiration: 2041-01-04
Also published as: CN112718304A

Abstract

The invention discloses a precise film-covering ink-jet structure which comprises a film supply mechanism, a film pulling mechanism, a film stretching mechanism, a film locking mechanism and an ink-jet mechanism which are sequentially arranged. And the film supply mechanism is used for storing and outputting the covering films. And the film pulling mechanism is used for pulling the film from the film supplying mechanism to the film stretching mechanism. And the film stretching mechanism is used for stretching the coated film pulled out by the film pulling mechanism. And the film locking mechanism is used for pressing the film to the product. And the ink jetting mechanism is used for spraying ink onto the product after the film covering is finished. The film supplying mechanism, the film pulling mechanism and the film stretching mechanism are matched to cover the lens with the film, the central area of the lens, namely the non-spraying area, is blocked, the film locking device reinforces and locks the film on the lens, and the ink jet device uniformly sprays ink on the lens. During the spraying process, the coating film protects the non-sprayed area from being covered by the ink. After the spraying is finished, only the film is required to be torn, the trouble of cleaning the lens is avoided, and the efficiency of lens production and processing is improved.

Description

Precise film-coated ink-jet structure

Technical Field

The invention relates to the field of ink jet devices, in particular to a coating precise ink jet structure.

Background

When producing 3D glass, VR glasses lens, need prevent the light leak to the peripheral oil ink that spouts of lens or glass, realize the effect of shading. When the ink is sprayed, manual spraying is generally adopted, or large-area spraying is carried out by adopting equipment. However, the manual spraying can not accurately control the spraying position and the spraying amount, the spraying is uneven, the conditions of uneven thickness and ink shortage and overflow are caused, and the large-scale ink spraying of the equipment wastes ink and pollutes the environment. Meanwhile, in the spraying mode, after spraying, the non-spraying area needs to be cleaned, so that the production and processing efficiency is reduced.

Disclosure of Invention

In order to overcome the defect that the lens needs to be cleaned for the second time due to the spraying effect in the prior art, the invention aims to solve the technical problem of providing a film-coated precise ink-jet structure, which realizes precise spraying by coating a film on the lens and then spraying, does not need to be cleaned in the later period, and improves the production and processing efficiency of the lens.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a precise film-covering ink-jet structure which comprises a film supply mechanism, a film pulling mechanism, a film stretching mechanism, a film locking mechanism and an ink-jet mechanism which are sequentially arranged. The film supply mechanism is used for storing and outputting the covering films. The film pulling mechanism is used for pulling out the film from the film supplying mechanism to the film stretching mechanism. The film stretching mechanism is used for stretching the coated film pulled out by the film pulling mechanism. And the film locking mechanism is used for pressing the film to the product. The ink-jet mechanism sprays ink on the product with the finished film.

In a preferred technical scheme of the invention, the film supply mechanism comprises a frame, a roller, a film cutting cylinder and a transfer mechanism. The gyro wheel rotate connect in the frame, on the gyro wheel was located to the tectorial membrane cover, the transfer mechanism and cut the membrane cylinder and all be fixed in the frame, the transfer mechanism is located one side of gyro wheel, it is located to cut the membrane cylinder one side of transfer mechanism.

In a preferred technical scheme of the invention, the film pulling mechanism comprises a base, a sliding frame, an upper clamping jaw and a lower clamping jaw, the sliding frame is connected to the base in a sliding manner, the upper clamping jaw and the lower clamping jaw are both movably connected to the sliding frame, and a driving mechanism for driving the upper clamping jaw and the lower clamping jaw to be clamped is arranged on the sliding frame.

In a preferred technical scheme of the invention, the film stretching mechanism comprises a first film stretching cylinder, a second film stretching cylinder, a base, a first rubber coating clamping jaw, a second rubber coating clamping jaw and a sliding seat. The sliding seat is connected to the side wall of the base in a sliding mode, the first rubber coating clamping jaw and the second rubber coating clamping jaw are fixed on the sliding seat, the first film stretching cylinder and the second film stretching cylinder are arranged between the first rubber coating clamping jaw and the second rubber coating clamping jaw, and a film ejecting block is fixed at the free end of the first film stretching cylinder and the free end of the second film stretching cylinder.

In a preferred technical scheme of the invention, the film locking mechanism comprises a lower die base and an upper die base, wherein a pressure sensor is fixed at the top of the upper die base, an upper profiling encapsulation jig is fixed at the bottom of the upper die base, upper film locking blocks are arranged around the upper profiling encapsulation jig, a linear driving motor is connected at the bottom of the lower die base, a lower profiling encapsulation jig is fixed at the top of the lower die base, and lower film locking blocks are arranged around the lower profiling encapsulation jig.

In a preferred embodiment of the present invention, the ink-jet mechanism includes a heat gun, an ink-jet valve, a monitoring camera, and a base. The hot air gun, the ink spraying valve and the monitoring camera are all fixed on the machine base, and a light source used for improving brightness is arranged on the monitoring camera.

In a preferred embodiment of the present invention, the inkjet mechanism further includes a support, an annular slide rail, an upper shield, and a lower shield. The annular slide rail is fixed in the lateral wall of pillar, frame sliding connection in the inboard of annular slide rail, go up the fender cover articulate in the upper end of pillar, lower fender cover is fixed in the pillar lateral wall, go up keep off the cover annular slide rail down the fender cover sets up from top to bottom in proper order.

In a preferred technical scheme of the invention, the lower gear cover consists of two semicircular collecting hoppers which are hinged with each other, leak holes are formed in the semicircular collecting hoppers, and an ink collecting tray is fixed at the bottom of one semicircular collecting hopper.

In a preferred technical scheme of the invention, a negative pressure fan is fixed at the top of the upper shield and is communicated with the bottom of the upper shield through more than 2 suction pipes. The bottom of the upper shield is fixed with a heating lamp, and the lower surface of the upper shield is provided with a reflecting layer.

The invention has the beneficial effects that:

according to the precise film-covering ink-jet structure provided by the invention, the film supplying mechanism, the film pulling mechanism and the film covering mechanism are matched to cover a film on a lens, the central area, namely a non-spraying area, of the lens is blocked, the film locking device reinforces and locks the film on the lens, and the ink-jet device uniformly sprays ink on the lens. During the spraying process, the coating film protects the non-sprayed area from being covered by the ink. After the spraying is finished, only the film is required to be torn, the trouble of cleaning the lens is avoided, and the efficiency of lens production and processing is improved.

Drawings

FIG. 1 is a schematic top view of a precision inkjet printhead structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the film supply mechanism in FIG. 1;

FIG. 3 is a schematic structural diagram of the film drawing mechanism of FIG. 1;

FIG. 4 is a schematic view of the film stretching mechanism of FIG. 1;

FIG. 5 is a schematic structural view of a lower die holder in a precision inkjet architecture for coating a film according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a mold locking mechanism in a precision inkjet architecture for coating a film according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a film-spraying structure of a precision ink-jet structure for coating films according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a pillar in a coated precision ink jet structure according to an embodiment of the present invention;

FIG. 9 is a schematic top view of the ring-shaped slide rail of FIG. 8;

fig. 10 is a schematic top view of the lower shield of fig. 8.

In the figure:

1-a film supply mechanism, 11-a frame, 12-a roller, 13-a transfer mechanism, 14-a film cutting cylinder, 2-a film drawing mechanism, 21-a base, 22-a carriage, 23-an upper clamping jaw, 24-a lower clamping jaw, 25-a driving mechanism, 3-a film stretching mechanism, 31-a base, 32-a sliding base, 33-a first encapsulation clamping jaw, 34-a second encapsulation clamping jaw, 35-a first film stretching cylinder, 36-a second film stretching cylinder, 37-a film jacking block, 41-a lower die base, 42-a lower profiling encapsulation jig, 43-a lower film locking block, 44-a linear driving motor, 45-an upper die base, 46-a pressure sensor, 47-an upper profiling encapsulation jig, 48-an upper film locking block, 51-a hot air gun, 52-an ink spraying valve, 53-monitoring camera, 54-machine base, 6-lens, 81-pillar, 82-annular slide rail, 83-upper baffle cover, 84-negative pressure fan, 85-suction pipe, 86-heating lamp, 87-lower baffle cover, 88-semicircular collecting funnel, 89-leak hole and 80-ink collecting disc.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1, the embodiment provides a precise inkjet structure for coating a film, which includes a film supplying mechanism 1, a film pulling mechanism 2, a film stretching mechanism 3, a film locking mechanism and an inkjet mechanism, which are sequentially arranged. And a film supply mechanism 1 for storing and outputting the coating film. And the film pulling mechanism 2 is used for pulling the film from the film supplying mechanism 1 to the film stretching mechanism 3. And the film stretching mechanism 3 is used for stretching the film pulled out by the film pulling mechanism 2. And the film locking mechanism is used for pressing the film to the product. And the ink jetting mechanism is used for spraying ink onto the product after the film covering is finished.

The lens 6 to be sprayed is placed on the film locking mechanism, the film locking mechanism 1 rotates, and the PE film is output. The film pulling mechanism 2 pulls the output PE film away and pulls the PE film to the film stretching mechanism 3. The film stretching mechanism 3 grasps the PE film sent by the film pulling mechanism 2 and stretches the PE film. The film stretching mechanism 3 moves to press the stretched film onto the lens 6 of the film locking mechanism. The film locking mechanism presses the lens 6 and the PE film together, so that the PE film covers the non-spraying area on the lens 6, and the redundant PE film is cut off. The film locking device locks the PE film, then moves the PE film to the ink jet mechanism, ink is uniformly sprayed on the lens 6 through ink jet movement, the lens 6 is taken out of the film locking mechanism after spraying is finished, the PE film on the lens 6 is torn off, and ink jet of the lens 6 is completed. Because the PE membrane covers the non-ink-jet area, the areas can not be sprayed with ink, the lens 6 is processed after the PE membrane is torn, and the next lens 6 can be produced and processed by the person who can process the next lens 6. After the PE film is pasted, the lens 6 does not need to be additionally cleaned, ink is jetted to be a finished product, the manual cleaning process is saved, and the production and processing efficiency is improved.

Specifically, the film supply mechanism 1 includes a frame 11, a roller 12, a film cutting cylinder 14, and a transfer mechanism 13. The gyro wheel 12 rotates to be connected in frame 11, and on gyro wheel 12 was located to the tectorial membrane cover, transfer mechanism 13 and cut membrane cylinder 14 all were fixed in on the frame 11, and transfer mechanism 13 is located one side of gyro wheel 12, cuts one side that membrane cylinder 14 is located transfer mechanism 13. The PE film is sleeved on the roller 12, and when the film is supplied, the PE film is pulled out from the roller 12, passes through the transfer mechanism 13 and is pulled to the film pulling mechanism 2 through the film cutting air cylinder 14. The transfer mechanism 13 is composed of a plurality of transfer rollers and can roll the PE film, the film cutting cylinder 14 is composed of a cylinder and a cutting cylinder, when the PE film is pulled out to a sufficient length, the film cutting cylinder 14 acts to cut the PE film, and a PE film with a proper length is output. Then, the roller 12 continues to roll to output the PE film, the transfer mechanism 13 continues to transfer the PE film out, and the film cutting cylinder 14 cuts out the next PE film meeting the use requirement.

Specifically, the film pulling mechanism 2 includes a base 21, a carriage 22, an upper clamping jaw 23 and a lower clamping jaw 24, the carriage 22 is slidably connected to the base 21, the upper clamping jaw 23 and the lower clamping jaw 24 are both movably connected to the carriage 22, and a driving mechanism 25 for driving the upper clamping jaw 23 and the lower clamping jaw 24 to be engaged is arranged on the carriage 22. The driving device controls the upper clamping jaw 23 to be folded with the lower clamping jaw 24, the upper clamping jaw 23 is folded with the lower clamping jaw 24 to clamp the PE film, the carriage 22 carries the PE film to slide from the base 21, the PE film is pulled out from the film supply mechanism 1, and the PE film is pulled onto the film stretching mechanism 3.

Specifically, the film stretching mechanism 3 includes a first film stretching cylinder 35, a second film stretching cylinder 36, a base 31, a first rubber coating clamping jaw 33, a second rubber coating clamping jaw 34 and a sliding seat 32. Slide 32 sliding connection is in the lateral wall of base 31, and first rubber coating clamping jaw 33 all is fixed in on slide 32 with second rubber coating clamping jaw 34, and first film cylinder 35 and the second film cylinder 36 of tightening all are fixed in on slide 32, and just first film cylinder 35 and the second film cylinder 36 of tightening all set up between first rubber coating clamping jaw 33 and second rubber coating clamping jaw 34, and the free end of first film cylinder 35 and the free end of second film cylinder 36 of tightening all are fixed with a membrane piece 37. The first rubber coating clamping jaw 33 and the second rubber coating clamping jaw 34 on the film stretching mechanism 3 clamp two sides of the PE film, then the first film stretching cylinder 35 and the second film stretching cylinder 36 respectively control the respective film jacking blocks 37 to ascend to stretch the PE film tightly, meanwhile, the mold locking mechanism also moves to the lower part of the sliding seat 32, and the sliding seat 32 drives the stretched film to descend to enable the PE film to be attached to the lens 6.

Specifically, the film locking mechanism comprises a lower die holder 41 and an upper die holder 45, a pressure sensor 46 is fixed at the top of the upper die holder 45, an upper copying and rubber coating jig 47 is fixed at the bottom of the upper die holder 45, upper film locking blocks 48 are arranged around the upper copying and rubber coating jig 47, a linear driving motor 44 is connected at the bottom of the lower die holder 41, a lower copying and rubber coating jig 42 is fixed at the top of the lower die holder 41, and lower film locking blocks 43 are arranged around the lower copying and rubber coating jig 42. Lens 6 has been placed on the lower profile modeling rubber coating tool 42 of die holder 41 follow, and it puts the PE membrane on lens 6 to stretch membrane mechanism 3, and upper die base 45 descends this moment, and last profile modeling rubber coating tool 47 on upper die base 45 compresses tightly the PE membrane to lens 6 on, locks membrane block 43 and locks membrane block 48 and be close to each other down, and the PE membrane cuts, and the membrane on the lens 6 can be stayed on lens 6. Then, the lower die holder 41 carries the lens 6 covered with the PE film to the ink jet mechanism, and the linear driving motor 44 can drive the upper die holder 45 to rotate, so that the ink jet mechanism can jet ink at various angles of the lens 6, thereby achieving uniform and comprehensive ink jet. The pressure sensor 46 on the upper die base 45 detects the pressure of the upper die base 45 pressing the lens 6, and if the force pressing the lens 6 is too large, the adjustment is small in time, so that the lens 6 is prevented from being damaged.

Specifically, the ink jet mechanism includes a hot air gun 51, an ink jet valve 52, a monitoring camera 53, and a housing 54. The hot air gun 51, the ink jet valve 52 and the monitoring camera 53 are all fixed on the base 54, and the monitoring camera 53 is provided with a light source for improving brightness. The ink jet valve 52 is connected to an external ink supply mechanism, the ink jet valve 52 is opened to jet ink onto the lens 6, and after the ink jet is completed, the hot air gun 51 blows hot air which blows the ink onto the lens 6 to accelerate the drying of the ink. The monitoring camera 53 can detect the spraying condition and the drying condition of the ink and feed back the ink to the outside in time. Meanwhile, the monitoring camera 53 can observe the die assembly gap when the upper copying rubber coating jig 47 and the lower copying rubber coating jig 42 are folded, and further control the die assembly force in time.

Specifically, the ink ejection mechanism further includes a support column 81, an annular slide rail 82, an upper shield 83, and a lower shield 87. The annular slide rail 82 is fixed on the side wall of the support column 81, the base 54 is slidably connected to the inner side of the annular slide rail 82, the upper shield 83 is hinged to the upper end of the support column 81, the lower shield 87 is fixed on the side wall of the support column 81, and the upper shield 83, the annular slide rail 82 and the lower shield 87 are sequentially arranged from top to bottom. When ink is ejected, the lower die holder 41 rotates with the lens 6, the position of the ink jet valve 52 can be adjusted by sliding the base 54 on the annular slide rail 82, and the annular slide rail 82 can move up and down on the support 81, so that the ink jet valve 52 can eject ink to various positions on the lens 6, thereby realizing ink spraying in all directions. In the ink spraying process, the upper shield 83 and the lower shield 87 are folded towards the annular slide rail 82, and the annular slide rail 82 is wrapped by the two shields, so that ink leakage in the ink spraying process is reduced, and the influence on the environment is reduced.

Specifically, the lower shield 87 is composed of two mutually hinged semicircular collecting hoppers 88, the semicircular collecting hoppers 88 are provided with leakage holes 89, and the bottom of one semicircular collecting hopper 88 is fixed with the ink collecting tray 80. The two semicircular collecting hoppers 88 are folded to form a large hopper-shaped hopper, and ink splashed in the ink jet process falls onto the semicircular collecting hoppers 88 and then flows onto the ink collecting tray 80 to be collected uniformly.

Specifically, a negative pressure fan 84 is fixed on the top of the upper shield 83, and the negative pressure fan 84 is communicated with the bottom of the upper shield 83 through more than 2 suction pipes 85. The heating lamp 86 is fixed at the bottom of the upper shield 83, and a reflective layer is arranged on the lower surface of the upper shield 83. During the ink jetting process, the negative pressure fan 84 is activated to draw away ink particles that escape to the air during the ink jetting process. After the ink jet is finished, heating is started, and the like, the heat is reflected to the lens 6 by matching with the reflecting layer, so that the drying of the ink on the lens 6 is accelerated, and the production and processing efficiency is improved.

Other techniques of the present embodiment employ existing techniques.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. A precise film-coated ink-jet structure is characterized in that: the film stretching and film locking device comprises a film supplying mechanism (1), a film pulling mechanism (2), a film stretching mechanism (3), a film locking mechanism and an ink jet mechanism which are arranged in sequence;

the film supply mechanism (1) is used for storing and outputting the covering films;

the film pulling mechanism (2) is used for pulling out a coated film from the film supplying mechanism (1) to the film stretching mechanism (3);

the film stretching mechanism (3) is used for stretching the coated film pulled out by the film pulling mechanism (2) straight;

the film locking mechanism is used for pressing the covering film onto a product;

the ink-jet mechanism sprays ink on the product with the film covered;

the ink-jet mechanism comprises a hot air gun (51), an ink-jet valve (52), a monitoring camera (53) and a machine base (54);

the hot air gun (51), the ink spraying valve (52) and the monitoring camera (53) are all fixed on the base (54), and a light source for improving brightness is arranged on the monitoring camera (53);

the ink jet mechanism further comprises a support column (81), an annular slide rail (82), an upper shield cover (83) and a lower shield cover (87);

the annular slide rail (82) is fixed on the side wall of the support column (81), the base (54) is connected to the inner side of the annular slide rail (82) in a sliding manner, the upper shield cover (83) is hinged to the upper end of the support column (81), the lower shield cover (87) is fixed on the side wall of the support column (81), and the upper shield cover (83), the annular slide rail (82) and the lower shield cover (87) are sequentially arranged from top to bottom;

the lower gear cover (87) consists of two semicircular collecting hoppers (88) which are hinged with each other, leak holes (89) are formed in the semicircular collecting hoppers (88), and an ink collecting disc (80) is fixed at the bottom of one semicircular collecting hopper (88);

a negative pressure fan (84) is fixed at the top of the upper shield cover (83), and the negative pressure fan (84) is communicated with the bottom of the upper shield cover (83) through more than 2 suction pipes (85);

a heating lamp (86) is fixed at the bottom of the upper shield (83), and a reflecting layer is arranged on the lower surface of the upper shield (83);

the film locking mechanism comprises a lower die holder (41) and an upper die holder (45), a pressure sensor (46) is fixed at the top of the upper die holder (45), an upper copying and rubber coating jig (47) is fixed at the bottom of the upper die holder (45), film locking blocks (48) are arranged on the periphery of the upper copying and rubber coating jig (47), a linear driving motor (44) is connected at the bottom of the lower die holder (41), a lower copying and rubber coating jig (42) is fixed at the top of the lower die holder (41), and lower film locking blocks (43) are arranged on the periphery of the lower copying and rubber coating jig (42).

2. The structure of claim 1, wherein:

the film supply mechanism (1) comprises a rack (11), a roller (12), a film cutting cylinder (14) and a transfer mechanism (13);

gyro wheel (12) rotate connect in on frame (11), on gyro wheel (12) were located to the tectorial membrane cover, transfer mechanism (13) and cut membrane cylinder (14) and all be fixed in on frame (11), transfer mechanism (13) are located one side of gyro wheel (12), it is located to cut membrane cylinder (14) one side of transfer mechanism (13).

3. The structure of claim 1, wherein:

draw membrane mechanism (2) to include base (21), balladeur train (22), last clamping jaw (23) and lower clamping jaw (24), balladeur train (22) sliding connection in on base (21), go up clamping jaw (23) with lower clamping jaw (24) equal swing joint in on balladeur train (22), be provided with drive mechanism (25) that drive upper clamping jaw (23) and lower clamping jaw (24) grabbed and close on balladeur train (22).

4. The structure of claim 1, wherein:

the film stretching mechanism (3) comprises a first film stretching cylinder (35), a second film stretching cylinder (36), a base (31), a first rubber-coating clamping jaw (33), a second rubber-coating clamping jaw (34) and a sliding seat (32);

the rubber coating machine is characterized in that the sliding seat (32) is connected to the side wall of the base (31) in a sliding mode, the first rubber coating clamping jaw (33) and the second rubber coating clamping jaw (34) are fixed to the sliding seat (32), the first film stretching cylinder (35) and the second film stretching cylinder (36) are arranged between the first rubber coating clamping jaw (33) and the second rubber coating clamping jaw (34), and the free end of the first film stretching cylinder (35) and the free end of the second film stretching cylinder (36) are fixed with the film pushing block (37).