CN218287085U

CN218287085U - Glass screen printing follow-up mechanism and glass screen printing machine

Info

Publication number: CN218287085U
Application number: CN202222096613.2U
Authority: CN
Inventors: 张春生; 蔡彬晶; 王永
Original assignee: Tianjin Windo Machinery Co ltd
Current assignee: Tianjin Windo Machinery Co ltd
Priority date: 2022-04-18
Filing date: 2022-08-10
Publication date: 2023-01-13
Anticipated expiration: 2032-08-10
Also published as: CN114516219A

Abstract

The utility model provides a glass screen printing follower mechanism and glass screen printing machine belongs to screen printing's technical field, can be applicable to the great curved surface glass screen printing of hunch height. The glass screen printing follow-up mechanism comprises a base, a mould platform and a printing mechanism; the mould platform comprises a mould, an installation platform and a mould rotating mechanism, the installation platform is installed on the base through the mould rotating mechanism, the mould is fixed on the installation platform, and the surface of the mould is an arc surface; the printing mechanism comprises a scraper, a scraper moving mechanism and a screen platform, the screen platform is used for placing a screen, the scraper is installed on the scraper moving mechanism, and the scraper moving mechanism drives the scraper to move along the surface of the screen. The glass screen printer comprises the glass screen printing follow-up mechanism.

Description

Glass screen printing follow-up mechanism and glass screen printing machine

Technical Field

The utility model belongs to the technical field of the screen printing technique and specifically relates to a glass screen printing servo-mechanism and glass screen printing machine are related to.

Background

Along with the demand of consumers to car travelling comfort, aesthetic property promotes gradually, and in order to realize the differentiation competition attraction consumers of whole car factory simultaneously, functional glass's permeability continuously promotes. Under the drive of factors such as improvement of riding experience, expansion of automobile vision, automobile lightweight requirements and the like, the demand of automobile skylight glass is increased remarkably in recent years.

The curved glass not only visually harmonizes and beautifies the whole body, but also can reduce the wind resistance coefficient of the whole vehicle. In addition, the curved glass has higher strength, and thinner glass can be adopted. When the thickness of the glass is reduced by 1mm, the weight of the whole vehicle can be reduced by about 10kg, and the oil consumption per hundred kilometers can be reduced by about 0.06 liter. Has certain significance for the light weight of the car. Therefore, curved glass is often used for the sunroof glass.

The atmosphere lamp glass skylight is characterized in that an ink layer capable of refracting light is printed inside glass, and an LED light source distributed all over the glass is utilized, so that the light is refracted inside the glass for multiple times, and the whole surface of the glass is luminous. The atmosphere lamp skylight can provide various colors such as blue, red, green, white and the like for selection, so that the automobile has more individuality, and soft atmosphere effect is generated to give visual comfort and safety to rear-row passengers at night. At present, the method is also an aspect of the key demand of the main engine plant on the market.

The printing of the atmosphere lamp glass skylight is to print a black edge, then dry and harden the black edge into curved glass, and then print an ink layer for refracting light. In the past, the printing of the ink layer for refracting light rays is to flatly absorb semi-tempered curved glass onto a plane workbench for plane printing. Although the process can ensure the full-face lighting effect of the atmosphere lamp skylight, the glass is damaged because of uneven stress release in the processes of glass leveling and release after printing, the glass cullet is not completely cleaned, and the silk screen printing plate is damaged. The larger the arch height of the curved glass is, the higher the probability of glass breakage is, and the curved glass with the arch height exceeding 50mm cannot be printed, so that the maximum arch height of the flat printed curved glass is limited. Therefore, the conventional printing of the curved glass has a problem of a high breakage rate.

SUMMERY OF THE UTILITY MODEL

Therefore, an object of the utility model is to provide a glass screen printing follower mechanism and glass screen printing machine can be applicable to the great curved surface glass screen printing of hunch height to there is the great problem of breakage rate in the printing of having alleviated current curved surface glass.

In order to achieve the purpose, the utility model provides a glass silk-screen printing follow-up mechanism, which comprises a base, a mould platform and a printing mechanism; the mould platform comprises a mould, an installation platform and a mould rotating mechanism, the installation platform is installed on the base through the mould rotating mechanism, the mould is fixed on the installation platform, the printed glass can be fixed on the mould, and the mould rotating mechanism is used for driving the mould to rotate around a transverse axis; the base comprises a vertical moving mechanism, the mould platform is arranged on the vertical moving mechanism, and the vertical moving mechanism is used for driving the mould platform to move vertically; the printing mechanism comprises a scraper, a scraper moving mechanism and a screen platform, wherein the screen platform is used for placing a screen, the scraper is installed on the scraper moving mechanism, and the scraper moving mechanism drives the scraper to move along the surface of the screen.

The mould rotating mechanism comprises a rotating central shaft, an arc-shaped gear ring and a first driving motor which are transversely arranged; the mounting platform is rotationally connected with the base through the rotating central shaft; the arc-shaped gear ring is fixed with the mounting platform, and the circle center of the arc-shaped gear ring is positioned on the rotating central shaft; the power output end of the first driving motor is provided with a driving wheel meshed with the arc-shaped gear ring, and the mounting platform can be driven to rotate around the rotating central shaft through the first driving motor.

The vertical moving mechanism comprises a lifting frame and a motor lead screw driving device; the mould platform is arranged on the lifting frame, and the motor lead screw driving device is used for driving the lifting frame to move up and down.

The motor lead screw driving device comprises a second driving motor, a lead screw and a nut matched with the lead screw, the nut is fixedly connected with the lifting frame, the lead screw is connected to the power output end of the second driving motor, and the second driving motor can drive the lead screw to rotate so as to drive the lifting frame to lift.

The number of the screw rods is two; and the screw rod is fixedly provided with driven teeth, the power output end of the second driving motor is provided with driving teeth, and the driving teeth are connected with the two driven teeth through a synchronous toothed belt.

The base comprises a horizontal moving mechanism; the horizontal moving mechanism comprises a horizontal bracket, a third driving motor and a horizontal linear guide rail; the third driving motor is arranged on the horizontal bracket, and the horizontal bracket is slidably arranged on the horizontal linear guide rail; a gear is arranged at the power output end of the third driving motor, and a rack meshed with the gear is arranged on the horizontal linear guide rail; the vertical moving mechanism is installed on the horizontal support.

The surface of the mould is a cambered surface; the clamping fixture is provided with a plurality of suckers, and the suckers are used for fixing glass.

A plurality of mounting holes are formed in the mould, and the suckers are mounted in the mounting holes.

Still include vacuum generator, vacuum generator passes through the gas circuit and is connected with a plurality of the sucking disc.

The utility model also provides a glass screen printing machine, include as before glass screen printing follow-up mechanism

The utility model provides a glass screen printing servo mechanism, set up mould rotary mechanism and vertical movement mechanism, it is rotatory to be driven the glass of being printed through mould rotary mechanism, then can drive glass lift through vertical movement mechanism simultaneously, consequently when printing curved surface glass, scraper moving mechanism drive scraper is along half tone surface movement, curved surface glass on the mould can be driven along the scraper to mould rotary mechanism simultaneously and rotates along with the scraper is synchronous, and then the peak that can make curved surface glass is in under the scraper all the time, accomplish the printing of curved surface glass whole face. Because adopt the utility model discloses the screen printing machine of structure compares in prior art with half toughened curved surface glass inhale flat to the mode of carrying out the plane printing on the plane workstation, curved surface glass can not bear the stress of inhaling flat and release in-process and form at whole printing in-process, consequently can show and avoid curved surface glass to take place the damage to the printing of having alleviated current curved surface glass has the great problem of breakage rate, improves the yield of curved surface glass printing.

Drawings

Fig. 1 is a schematic view of a glass screen printing following mechanism provided by an embodiment of the present invention.

Fig. 2 is a schematic view of a clamping fixture in an embodiment of the present invention.

Fig. 3 is a schematic view of a mold rotating mechanism according to an embodiment of the present invention.

Fig. 4 is a schematic view of the vertical moving mechanism in the embodiment of the present invention.

Fig. 5 is a schematic view of a horizontal moving mechanism according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of the connection between the suction cup and the vacuum generator according to the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses an in an embodiment, a glass screen printing servo mechanism is provided, is applied to curved surface toughened glass's printing, for example is used for installing the atmosphere lamp glass skylight on the car, and this glass screen printing servo mechanism includes base, mould platform and printing mechanism.

As shown in fig. 1, 2 and 3, the clamping fixture platform includes a clamping fixture 11, a mounting platform 12 and a clamping fixture rotating mechanism, the mounting platform 12 is mounted on the base through the clamping fixture rotating mechanism, the clamping fixture 11 is fixed on the mounting platform 12, and the surface of the clamping fixture 11 is an arc surface. The printing mechanism comprises a scraper 13, a scraper moving mechanism (not shown in the figure) and a screen platform (not shown in the figure), the screen platform is used for placing a screen 14, the scraper 13 is installed on the scraper moving mechanism, and the scraper moving mechanism drives the scraper 13 to move along the surface of the screen 14, namely, along the direction X2. It should be noted that the present invention does not improve the printing mechanism, and the printing mechanism may adopt the existing structure.

In one possible embodiment, the mold rotating mechanism includes a rotation center shaft 15, an arc-shaped ring gear 16, a first drive motor 17, and a speed reducer. The mounting platform 12 is rotatably connected with the base through a rotating central shaft 15, the first driving motor 17 is mounted on the base, the circle center of the arc-shaped gear ring 16 is located on the rotating central shaft 15, and the arc-shaped gear ring 16 is fixed with the mounting platform. The first driving motor 17 drives the arc-shaped gear ring 16 to rotate through the driving wheel, so as to drive the mounting platform 12 to rotate. The driving wheel can be a roller 171, and the roller 171 and the arc-shaped gear ring 16 form a ring roller mechanism with meshed teeth; of course, the drive wheel may also be a gear wheel which meshes with the arcuate toothed ring 16. The high-precision arc-shaped gear ring 16 can realize zero back clearance, high precision and low noise, the motion range is +/-20 degrees, and a high-precision speed reducer with the back clearance not more than 1 arc minute is adopted as the speed reducer of the first driving motor 17.

When the curved glass 110 is printed, the scraper moving mechanism drives the scraper 13 to move along the surface of the screen 14, and meanwhile, the mold rotating mechanism drives the curved glass 110 on the mold 11 to synchronously rotate along with the scraper 13, so that the highest point of the curved glass 110 is always positioned under the scraper 13, and the printing of the whole surface of the curved glass 110 is completed. In the whole printing process, compared with the mode that semi-tempered curved glass is absorbed and leveled to a plane workbench for plane printing in the prior art, the curved glass 110 cannot bear the stress formed in the absorbing and leveling and releasing processes, so that the curved glass 110 can be obviously prevented from being damaged, the problem that the damage rate is high in the existing printing of the curved glass 110 is solved, the yield of the printing of the curved glass 110 is improved, and the maximum arch height of the printing of the curved glass 110 is improved to 75mm.

As shown in fig. 4, in one possible embodiment, the base includes a vertical moving mechanism including a crane 21, a second driving motor 22, a lead screw 23, and a vertical linear guide 24. The mould platform is installed on crane 21, crane 21 and perpendicular linear guide 24 sliding connection, installs nut 27 on the lead screw 23, nut 27 and crane 21 fixed connection, and the power take off end of second driving motor 22 is connected in the lead screw, through second driving motor can drive the lead screw and rotate to drive crane 21 goes up and down.

In this embodiment, the number of the screw rods 23 is two, the screw rods 23 are fixed with driven teeth 262, a power output end of the second driving motor is provided with a driving tooth 261, and the driving tooth 261 is connected with the two driven teeth 262 through a synchronous toothed belt 25.

The vertical moving mechanism realizes the movement of the mould platform in the vertical direction and realizes the movement of the whole lifting vertical direction including the mould platform. The vertical moving mechanism is driven by a second driving motor 22 through a synchronous gear belt 25 to move up and down two high-precision lead screws 23, so that the whole lifting vertical movement is driven, and meanwhile, 4 vertical linear guide rails 24 are arranged to play a role in guiding.

As shown in fig. 5, the base further includes a horizontal movement mechanism including a horizontal bracket 31, a horizontal linear guide 32, and a third driving motor 33. The third driving motor 33 is mounted on the horizontal bracket 31, and the horizontal bracket 31 is slidably mounted on the horizontal linear guide 32. The power output end of the third driving motor 33 is provided with a gear 34, the horizontal linear guide rail 32 is provided with a rack 35 engaged with the gear 34, the vertical moving mechanism is mounted on the horizontal bracket 31, and the vertical moving mechanism moves along the horizontal linear guide rail 32 under the driving of the third driving motor 33.

The third driving motor 33 realizes the horizontal movement of the whole mould platform, can realize the follow-up in printing by four-shaft linkage together with the first driving motor 17, the second driving motor and the scraper moving mechanism, and can also be used as a transfer shuttle to play a role in transferring upper and lower sheets. The third driving motor 33 drives the high-precision grinding stage gear 34 to realize horizontal movement under the guidance of the horizontal linear guide rail 32.

When the curved glass is loaded and unloaded, the first driving motor acts to reset the mould to a horizontal position, the second driving motor acts to enable the mould platform to descend to a low position, and the third driving motor horizontal support travels by a fixed step distance, so that the conversion of the mould between a printing station and a loading and unloading station is realized. When the mould is at the upper and lower piece station, the upper and lower piece conveyer accomplishes the work of upper and lower piece. When the mould is at the printing station, the printing of glass is accomplished in the four-axis linkage.

In one possible embodiment, a plurality of suction cups are mounted on the mold, and the suction cups are used for fixing the glass. As shown in fig. 2 and fig. 6, the present embodiment further includes a vacuum generator 101, and the vacuum generator 101 is connected to the plurality of suction cups 102 through a gas path. The mold 11 is formed with a plurality of mounting holes 100, and the suction cup 102 is mounted in the mounting hole 100. 7 sucking discs are installed on the mould 11 in this embodiment, and the glass is positioned by matching with the glass contour line L. The 7 suction cups 102 are divided into two groups and controlled by two vacuum generators 101. Control gas path as shown in fig. 6, the first suction cup group comprises 3 suction cups 102, which are controlled by a vacuum generator 101; the second suction cup set comprises 4 suction cups 102, controlled by another vacuum generator 101, which structure may also function as an auxiliary template.

Because half toughened curved surface glass inhales flatly and can not guarantee that glass is very level and smooth, need reduce printing speed and further flatten the glass printing in order to guarantee to scrape the adhesive tape, and consider the deflection of printing pattern that projects on curved surface glass when making the half tone and realize also more controllable more easily, the embodiment of the utility model provides an adopt four-axis linkage structure, improved printing speed, promoted the printing pattern precision.

The printing control process is as follows:

as shown in FIG. 1, the curve of the central axis of the long side of the upper surface of the glass is selected as the curve composed of line segments and circular arcs, and a document in the dxf format is generated. The glass curve is expanded horizontally to have the same length as the screen 14, and a mathematical model of 4-axis synchronous motion is generated from the dxf format document of the introduced glass curve. In the process (uniform motion) that scraper moving mechanism drive printing scraper 13 removed, the first driving motor second driving motor of lower part, the removal of third driving motor drive mould 11 can realize that scraper 13 and glass upper surface's distance equals all the time, and half tone 14 is in the tangential direction's on glass surface level top all the time, and distance X is unchangeable all the time, and the size of distance X is by printing ink viscosity, printing ink thickness, decision such as glass camber to but the digitization sets up. The minimum width of the printing line-shaped pattern is 0.5mm, the minimum diameter of the matrix dot-shaped pattern is phi 0.2mm, and the tolerance is +/-0.1 mm.

The embodiment of the utility model provides a replace traditional plane printing workstation with purpose-built mould. The mould is made of aluminum by casting, and the cavity type structure not only ensures enough rigidity, but also reduces the weight as much as possible. And processing the glass profile after casting to ensure that the curved glass is in good contact with the surface of the mould. The contour is processed by numerical control, and the curvature error of the contour and curved glass is not more than +/-0.2 mm. The curvature forming error of the existing semi-tempered curved glass is +/-0.3 mm, the mould not only can not increase the error, but also plays a role in offsetting the error, and the requirement of the profile depth on the mould is 0.1mm smaller than the thickness of the glass.

The embodiment of the utility model provides a glass screen printing machine is still provided, including foretell glass screen printing follow-up mechanism.

The embodiment of the utility model provides a glass screen printing machine, the glass screen printing following mechanism who provides with above-mentioned embodiment has the same technical characteristic, so also can solve the same technical problem, reaches the same technological effect. It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A glass screen printing follow-up mechanism is characterized by comprising a base, a mould platform and a printing mechanism; the mould platform comprises a mould, an installation platform and a mould rotating mechanism, the installation platform is installed on the base through the mould rotating mechanism, the mould is fixed on the installation platform, the printed glass can be fixed on the mould, and the mould rotating mechanism is used for driving the mould to rotate around a transverse axis; the base comprises a vertical moving mechanism, the mould platform is arranged on the vertical moving mechanism, and the vertical moving mechanism is used for driving the mould platform to move vertically; the printing mechanism comprises a scraper, a scraper moving mechanism and a screen platform, wherein the screen platform is used for placing a screen, the scraper is installed on the scraper moving mechanism, and the scraper moving mechanism drives the scraper to move along the surface of the screen.

2. The glass screen printing follow-up mechanism according to claim 1, wherein the clamping fixture rotating mechanism comprises a rotating central shaft, an arc-shaped gear ring and a first driving motor which are transversely arranged; the mounting platform is rotationally connected with the base through the rotating central shaft; the arc-shaped gear ring is fixed with the mounting platform, and the circle center of the arc-shaped gear ring is positioned on the rotating central shaft; the power output end of the first driving motor is provided with a driving wheel meshed with the arc-shaped gear ring, and the mounting platform can be driven to rotate around the rotating central shaft through the first driving motor.

3. The glass screen printing follow-up mechanism according to claim 1, wherein the vertical moving mechanism comprises a lifting frame and a motor screw rod driving device; the mould platform is arranged on the lifting frame, and the motor lead screw driving device is used for driving the lifting frame to move up and down.

4. The glass screen printing follow-up mechanism according to claim 3, wherein the motor screw rod driving device comprises a second driving motor, a screw rod and a nut matched with the screw rod, the nut is fixedly connected with the lifting frame, the screw rod is connected to a power output end of the second driving motor, and the second driving motor can drive the screw rod to rotate so as to drive the lifting frame to lift.

5. The glass screen printing servo mechanism according to claim 4, wherein the number of the lead screws is two; and driven teeth are fixed on the screw rod, a driving tooth is arranged at the power output end of the second driving motor, and the driving tooth is connected with the two driven teeth through a synchronous toothed belt.

6. The glass screen printing follower mechanism of claim 3, wherein the base includes a horizontal movement mechanism; the horizontal moving mechanism comprises a horizontal bracket, a third driving motor and a horizontal linear guide rail; the third driving motor is arranged on the horizontal bracket, and the horizontal bracket is arranged on the horizontal linear guide rail; a gear is arranged at the power output end of the third driving motor, and a rack meshed with the gear is arranged on the horizontal linear guide rail; the vertical moving mechanism is installed on the horizontal support.

7. The glass screen printing follow-up mechanism according to any one of claims 1 to 6, wherein the surface of the mould is a cambered surface; the mould is provided with a plurality of suckers for fixing glass.

8. The glass screen printing follow-up mechanism according to claim 7, wherein a plurality of mounting holes are formed on the jig, and the suction cups are mounted in the mounting holes.

9. The glass screen printing follow-up mechanism of claim 7, further comprising a vacuum generator connected to the plurality of suction cups by a gas circuit.

10. A glass screen printing machine comprising a glass screen printing follower as claimed in any one of claims 1 to 9.