Screen printing equipment

Abstract

The utility model discloses screen printing equipment, a linear module is arranged on a machine table, a translation carrying table is arranged on the linear module, a printing module and a detection module are arranged on the machine table side by side, and the printing module and the detection module are located on the two opposite sides of the linear module respectively; the translation carrying table comprises a translation unit and an adsorption unit, the translation unit is arranged on a translation module and comprises a plurality of driving assemblies, at least two driving assemblies are arranged in the X direction and the Y direction in the horizontal direction, and the adsorption unit is arranged on the driving assemblies and used for bearing and adsorbing products. And the position of the product is adjusted in the horizontal plane under the driving of the driving component. According to the utility model, the product is positioned through the cooperative action of the detection module and the translation carrying table, the position of the product on the adsorption unit can be adjusted through the translation unit, and the accurate position of the subsequent product below the printing module is ensured, so that the accurate printing of the product is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing devices, in particular to a screen printing device capable of realizing a precise printing function. Background Art

[0002] In screen printing equipment, the product (such as glass, electronic product display screen, etc.) is placed on a carrier and positioned between the screen and the carrier for screen printing by reciprocating movement of the printing head. With the advancement of technology and to improve the efficiency of screen printing, a method has emerged in which the product is placed on a reciprocating treadmill and the treadmill is moved on a linear module to the bottom of the printing mechanism for printing. In this process, if the position of the product on the treadmill is inaccurate, or the product is displaced on the treadmill during the feeding process, the printing position may be inaccurate, thereby making the position of the printing head inaccurate and affecting the printing effect and printing quality of the product. Utility Model Content

[0003] The purpose of the utility model is to provide a screen printing device, which can position the product through the coordinated action of the detection module and the translation platform. The product is located on the adsorption unit and the position can be adjusted by the translation unit to ensure the accuracy of the position of the subsequent product under the printing module, thereby realizing accurate printing of the product.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a screen printing device, including a machine platform, a linear module, a printing module and a detection module, the linear module is arranged on the machine platform, and a translation platform is provided on the linear module, the printing module and the detection module are arranged side by side on the machine platform, and the two are respectively located on opposite sides of the linear module; the translation platform includes a translation unit and an adsorption unit, the translation unit is arranged on the translation module, and it includes a plurality of driving components, at least two driving components are respectively arranged in the horizontal direction along the X direction and the Y direction, the adsorption unit is arranged on the driving component for carrying the adsorption product, and is driven by the driving component to move and adjust the position of the product in the horizontal plane; the translation unit includes a translation box body, and a driving component arranged in the translation box body, the number of the driving components is four, and the four driving components respectively form an X-direction driving module and a Y-direction driving module in pairs, and are connected to the four corners of the adsorption unit.

[0005] As a further optimization, the driving assembly includes a motor, a screw nut pair, a base, a slide and a mounting seat. The base is arranged in the translation box, and a slide is arranged on the upper end thereof for horizontal sliding. The slide is connected to the screw nut pair connected to the output end of the motor. The mounting seat is slidably arranged on the slide, and the moving direction of one of the two is along the X direction in the horizontal plane, and the moving direction of the other is along the Y direction in the horizontal plane.

[0006] As a further optimization, the printing module includes a lifting module, a horizontal module, a vertical module, a clamping assembly and a printing head. The lifting module is arranged on the machine platform, the horizontal module is arranged on the lifting module, and a vertical module is provided at the output end. The printing head is arranged on the vertical module, and the clamping assembly is arranged on the shell of the horizontal module for clamping the screen.

[0007] As a further optimization, the printing head at least includes a printing component, which includes a driving member, an angle adjustment member and a scraper. The driving member is arranged on the vertical module, and an angle adjustment member is provided at the output end. The angle adjustment member includes a mounting plate, a driven gear, an adjustment plate, a driving unit and a main gear. The mounting plate is arranged at the output end of the driving member, and a driven gear is rotatable on one side of the driving member through a rotating shaft. The lower end of the driven gear is connected to an adjustment plate. The driving unit is arranged on the mounting plate, and an active gear meshing with the driven gear is provided at the output end. The scraper is arranged on the adjustment plate, so that the angle adjustment member can drive the scraper to rotate at a certain angle, thereby adjusting the printing state of the scraper and being suitable for printing products of different thicknesses.

[0008] As a further optimization, the adjustment plate includes a frame plate and an inverted T-shaped plate, the frame plate is provided with a horizontal through hole and a socket connected to the horizontal through hole, the upper plate of the inverted T-shaped plate is embedded in the socket, and the lower plate is located in the horizontal through hole and is positioned by a pin shaft that passes through the frame plate and extends into the lower plate, and the driven gear is connected to the upper plate.

[0009] As a further optimization, the angle adjustment member also includes an adjusting bolt, which is rotatably arranged on the frame plate for lifting and lowering and abuts against the upper end of the lower plate. The horizontal state of the inverted T-shaped plate can be ensured by the lifting and lowering action of a pair of adjusting bolts on the two ends of the lower plate.

[0010] As a further optimization, the angle adjustment member also includes a driven rotating block, which is arranged on a side of the upper plate away from the driven gear and is rotatably arranged on a rotating shaft on the mounting plate, and can cooperate with the driven gear to ensure the stability of the adjustment plate.

[0011] As a further optimization, the printing head also includes an ink return component.

[0012] As a further optimization, the detection module includes a bracket and a CCD camera, the bracket is arranged on the machine platform, and a plurality of CCD cameras are arranged on the bracket for respectively detecting the sides and / or top corners of the product.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The product is positioned through the coordinated action of the detection module and the translation stage. The product is located on the adsorption unit and can be adjusted by the translation unit to ensure the accuracy of the subsequent product when it is located under the printing module, thereby achieving accurate printing of the product;

[0015] 2. The inclination angle of the scraper can be adjusted through the angle adjustment piece, which can be used for products of different thicknesses, and can ensure the adjustment of the printing state and the printing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model.

[0017] Figure 2 It is a structural diagram of the translation box of the utility model.

[0018] Figure 3 This is a structural diagram of the drive assembly of the utility model.

[0019] Figure 4 This is a structural diagram of the printing head of the utility model.

[0020] Figure 5 It is a structural diagram of the adjustment plate of the utility model. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] like Figures 1 to 2 As shown, a screen printing device includes a machine table 1, a linear module 2, a printing module 3 and a detection module 4. The linear module 2 is arranged on the machine table 1, and a translation platform 5 is provided thereon. The printing module 3 and the detection module 4 are arranged side by side on the machine table 1, and the two are respectively located on the opposite sides of the linear module 2; the translation platform 5 includes a translation unit 51 and an adsorption unit 52, the translation unit 51 is arranged on the translation module 2, and includes a plurality of driving components 511, at least two driving components 511 are respectively arranged in the horizontal direction along the X direction and the Y direction, the adsorption unit 52 can be a vacuum adsorption structure, which is arranged on the driving component 51 for carrying and adsorbing products, and the adsorption unit 52 is driven by the driving component 511 to move in the horizontal plane to adjust the position of the product. The translation unit 51 includes a translation box 510 and a driving component 511 arranged in the translation box 510. There are four driving components 511. The four driving components 511 form X-direction driving modules 51a and Y-direction driving modules 51b in pairs, and are respectively connected to the four corners of the adsorption unit 52. A pair of X-direction driving modules 51a and a pair of Y-direction moving modules 51b are respectively arranged diagonally, which can ensure the stability of the adsorption unit 52 when moving in the X / Y directions.

[0023] More specifically, the detection module 4 includes a bracket 41 and a CCD camera 40. The bracket 41 is arranged on the machine 1. A plurality of CCD cameras 40 are arranged on the bracket 41 with adjustable positions for respectively detecting the side and / or top angle positions of the product. In the present invention, the product is placed on the adsorption unit 52 for adsorption and fixation. The detection module 4 can perform visual inspection on the position of the product. According to the visual inspection result, the product can be translated upward in X / Y in the horizontal plane through the cooperation of a plurality of driving components 511 to adjust the position of the adsorption unit 52 and the product so that the product is in the correct position. Then, the linear module 2 drives the translation stage 5 to move to the bottom of the printing module 3 to perform printing.

[0024] The utility model positions the product through the coordinated action of the detection module 4 and the translation stage 5. Even if there is an error when the product is placed on the translation stage 5, it can be automatically adjusted to ensure that the position of the product is accurate when it is located under the printing module 3, thereby achieving accurate printing of the product; based on the settings of visual detection and X / Y adjustment, position adjustment can be more conveniently achieved when the product is round.

[0025] like Figure 3As shown, the driving component 511 specifically includes a motor 5111, a lead screw nut pair 5112, a base 5110, a slide 5113 and a mounting seat 5114. The base 5110 is fixedly arranged in the translation box 510, and a slide 5113 is horizontally slidably arranged on the first guide rail 511a at the upper end thereof. The slide 5113 is connected to the lead screw nut pair 5112 connected to the output end of the motor 5111. The mounting seat 5114 is slidably arranged on the second guide rail 511b at the upper end of the slide 5113, and the moving direction of one of the slide 5113 and the mounting seat 5114 is to move along the X direction in the horizontal plane, and the moving direction of the other is to move along the Y direction in the horizontal plane. For example, when the driving component 511 is used as the X-direction driving module 51a, the motor 5 11 drives the lead screw nut pair 5112 to make the slide 5113 move in the X direction on the base 5110, and the mounting seat 5114 located on the slide 5113 (its position relative to the slide 5113 remains unchanged) can drive the adsorption unit 52 to move in the X direction, and because the mounting seat 5114 is slidably arranged on the slide 5113, and the direction of the second guide rail 511b is arranged in a perpendicular moving direction to the direction of the first guide rail 511a, it provides the possibility that the adsorption unit 52 can move in the Y direction. Under such a premise, when the Y-direction driving module 51b is driven, it can move in the Y direction (at this time, the position of the slide 5113 remains unchanged). Of course, in this case, the slide in the Y-direction driving module 51b moves in the Y direction, and the mounting seat moves in the X direction. Therefore, the adjustment of the X / Y position of the adsorption unit can be achieved by the slide 5113 and the mounting seat 5114 can move in the X / Y direction respectively, and the two are located in different driving modules and have different moving directions.

[0026] For example Figure 1 As shown, the printing module 3 includes a lifting module 31, a horizontal module 32, a vertical module 33, a clamping assembly 30 and a printing head 34. The lifting module 31 is arranged on the machine platform 1, the horizontal module 32 is arranged on the lifting module 31, and the output end is provided with a vertical module 33, the printing head 34 is arranged on the vertical module 33, and the clamping assembly 30 is arranged on the shell of the horizontal module 32 for clamping the screen (not shown). When the translation stage 5 drives the product to move below the printing module 3, the lifting module 31 drives each component to move downward and abut the screen against the product, the vertical module 33 drives the printing head 34 to move downward and abut against the screen, and the horizontal module 32 drives the vertical module 33 and the printing head 34 to translate to complete the printing action.

[0027] like Figures 4 to 5As shown, the printing head 34 includes a printing component and an ink return component. The printing component includes a driving member 341, an angle adjustment member and a scraper (not shown). The driving member 341 can be selected as a lifting cylinder, which is arranged on the bracket plate 330 of the vertical module 33, and an angle adjustment member is provided at the output end. The angle adjustment member includes a mounting plate 342, a driven gear 343, an adjustment plate 344, a driving unit 3451 and a main gear 3452. The mounting plate 342 is fixedly arranged at the output end of the driving member 341, and a driven gear 343 is rotatably provided on one side of the mounting plate 3421. The lower end of the driven gear 343 is fixedly connected to the adjustment plate 344. The driving unit 3451 can be selected as a rotating motor, which is arranged on the mounting plate 342, and a driving gear 3452 meshing with the driven gear 343 is provided at the output end. The scraper is arranged on the adjustment plate 344. When the driving unit 3451 drives the active gear 3452 to rotate and drives the driven gear 343 to rotate so that the adjustment plate 344 rotates a certain angle, the scraper also rotates a certain angle accordingly. The scraper can be adjusted to different tilt states (different contact angles with the screen, different downward pressure on the ink, etc.) to achieve printing on the product; in addition, when the thickness of the product is different, it can also be adapted to it through different tilt degrees of the scraper, which has better applicability.

[0028] More specifically, the adjustment plate 344 includes a frame plate 3441 and an inverted T-shaped plate 3442. The frame plate 3441 is provided with a horizontal through hole 34411 and a socket 34412 connected to the horizontal through hole 34411. The upper plate 34422 of the inverted T-shaped plate 3442 is embedded in the socket 34412, and the lower plate 34421 is located in the horizontal through hole 34411. The lower plate 34421 is positioned by a pin shaft (not shown) that passes through the positioning hole 34413 on the frame plate 3441 and extends into the lower plate 34421. The driven gear 343 is connected to the upper plate 34422. When installing the adjustment plate 344 on the mounting plate 342, first install the inverted T-shaped plate 3442 in the frame plate 3441, and preliminarily position the inverted T-shaped plate 3442 on the frame plate 3441 through the pin shaft, and then set the driven gear 343 on the rotating shaft 3421, and install the adjustment plate 344 and the driven gear 343 on the mounting plate 342 by means of bolts that pass through the frame plate 3441 and the inverted T-shaped plate 3442 from bottom to top and are locked in the driven gear 343, wherein the bolts are only locked with the driven gear 343; to ensure the balance of installation and adjustment, the angle adjustment member also includes a driven rotating block 346, which is arranged on one side of the upper plate 34422 away from the driven gear 343, and is rotatably arranged on the rotating shaft 3421 on the other side of the mounting plate 342, and its installation method with the mounting plate 342 and the adjustment plate 344 is the same as the installation method of the driven gear 343.

[0029] The angle adjustment part also includes an adjustment bolt 347. Since the lower plate 34421 is positioned only by using a pin and a bolt through it, the stability of the lower plate 34421 cannot be guaranteed. In order to ensure the horizontal state of the lower plate 34421, the adjustment bolt 347 is rotatably set on the frame plate 3441 for lifting and lowering and abutting against the upper end of the lower plate 34421. By rotating a pair of adjustment bolts 347, the positions of the two ends of the lower plate 34421 can be limited to ensure the state of the lower plate 34421 and the installation stability of the entire adjustment plate 344.

[0030] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A screen printing device, characterized in that: It includes a machine platform, a linear module, a printing module and a detection module. The linear module is arranged on the machine platform and is provided with a translation platform. The printing module and the detection module are arranged side by side on the machine platform, and the two are respectively located on the opposite sides of the linear module; the translation platform includes a translation unit and an adsorption unit. The translation unit is arranged on the translation module, which includes multiple driving components, at least two driving components are respectively arranged in the X direction and the Y direction in the horizontal direction, and the adsorption unit is arranged on the driving component for carrying the adsorption product, and is driven by the driving component to move and adjust the position of the product in the horizontal plane; the translation unit includes a translation box body, and a driving component arranged in the translation box body. The number of the driving components is four, and the four driving components form an X-direction driving module and a Y-direction driving module in pairs, and are connected to the four corners of the adsorption unit.

2. The screen printing device according to claim 1, characterized in that: The driving assembly includes a motor, a screw nut pair, a base, a slide and a mounting seat. The base is arranged in the translation box, and a slide is arranged on the upper end of the base so as to slide horizontally. The slide is connected to the screw nut pair connected to the output end of the motor. The mounting seat is slidably arranged on the slide, and the moving direction of one of the two is along the X direction in the horizontal plane, and the moving direction of the other is along the Y direction in the horizontal plane.

3. The screen printing device according to claim 1, characterized in that: The printing module includes a lifting module, a horizontal module, a vertical module, a clamping assembly and a printing head. The lifting module is arranged on the machine platform, the horizontal module is arranged on the lifting module, and a vertical module is provided at the output end. The printing head is arranged on the vertical module, and the clamping assembly is arranged on the shell of the horizontal module for clamping the screen.

4. The screen printing device according to claim 3, characterized in that: The printing head at least includes a printing component, which includes a driving member, an angle adjustment member and a scraper. The driving member is arranged on the vertical module, and an angle adjustment member is provided at the output end. The angle adjustment member includes a mounting plate, a driven gear, an adjustment plate, a driving unit and a main gear. The mounting plate is arranged at the output end of the driving member, and a driven gear is rotatably provided on one side of the mounting plate through a rotating shaft. The lower end of the driven gear is connected to the adjustment plate. The driving unit is arranged on the mounting plate, and an active gear meshing with the driven gear is provided at the output end. The scraper is arranged on the adjustment plate.

5. The screen printing device according to claim 4, characterized in that: The adjustment plate includes a frame plate and an inverted T-shaped plate. The frame plate is provided with a horizontal through hole and a socket connected to the horizontal through hole. The upper plate of the inverted T-shaped plate is embedded in the socket, and the lower plate is located in the horizontal through hole and is positioned by a pin shaft that passes through the frame plate and extends into the lower plate. The driven gear is connected to the upper plate.

6. The screen printing device according to claim 5, characterized in that: The angle adjustment member also includes an adjustment bolt, which is rotatably arranged on the frame plate to be lifted and lowered and abuts against the upper end of the lower plate.

7. The screen printing device according to claim 5, characterized in that: The angle adjustment member further comprises a driven rotating block, which is arranged on a side of the upper plate away from the driven gear and rotatably arranged on a rotating shaft on the mounting plate.

8. The screen printing device according to claim 4, characterized in that: The printing head also includes an ink return assembly.

9. The screen printing device according to claim 1, characterized in that: The detection module includes a bracket and a CCD camera. The bracket is arranged on the machine platform. A plurality of CCD cameras are arranged on the bracket for respectively detecting the sides and / or top corners of the product.

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