CN110370789B

CN110370789B - Linear screen printer

Info

Publication number: CN110370789B
Application number: CN201910796346.XA
Authority: CN
Inventors: 吴丰礼
Original assignee: Guangdong Topstar Technology Co Ltd
Current assignee: Guangdong Topstar Technology Co Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2024-05-28
Anticipated expiration: 2039-08-27
Also published as: CN110370789A

Abstract

The invention belongs to the technical field of plate screen printing equipment, and discloses a linear screen printing machine which comprises a dust removing device, a visual positioning device, a screen printing device, a spot inspection blanking device and a linear transfer device, wherein the dust removing device, the visual positioning device, the screen printing device and the spot inspection blanking device are sequentially distributed in a straight line. According to the scheme, the linear transfer device with the double transfer jigs is arranged below the three operation devices, so that double-station simultaneous transfer of plate pieces can be realized, the transfer efficiency is improved, and structural interference between the linear transfer device and the operation devices can be avoided, so that the whole structure is more compact and the whole action matching is more efficient.

Description

Linear screen printer

Technical Field

The invention relates to the technical field of plate screen printing equipment, in particular to a linear screen printing machine.

Background

The sheet members are an important component of various industrial products, and various treatments such as dust removal, visual positioning, surface printing, discharging spot inspection and the like are required to be carried out on the sheet members in the industrial product production process, and related sheet transfer equipment is required to transfer the sheet members between the different procedures. The existing plate transfer equipment is generally mutually independent, namely, an independent plate transfer equipment is arranged between every two adjacent structures, so that connection of the two adjacent structures is realized, on one hand, the design causes higher overall cost of the equipment, on the other hand, the control is complex, and the overall transfer efficiency is lower. Based on the above, it is necessary to design a new screen printing machine.

Disclosure of Invention

One object of the present invention is to: provided is a linear screen printer capable of improving the transfer efficiency of a sheet material.

To achieve the purpose, the invention adopts the following technical scheme:

The utility model provides a rectilinear screen printer, is including being dust collector, visual positioning device, screen printing device and the spot check unloader that the straight line distributes in proper order, still includes the straight line and moves the device that moves, the straight line moves the device and includes two upward setting move the tool that moves, the straight line moves the device and is located visual positioning device, screen printing device and spot check unloader's below, one side of dust collector is provided with centering device, centering device is kept away from one side of spot check unloader is provided with loading attachment.

As a preferable technical scheme, the visual positioning device comprises a visual support, a camera and a light source plate, wherein the camera and the light source plate are arranged on the visual support, the camera is positioned above the light source plate, a positioning placing plate for bearing plate members is arranged between the camera and the light source plate, the positioning placing plate is arranged on a positioning table, light beams emitted by the light source plate penetrate through the positioning placing plate and are received by the camera, and the linear transfer device is positioned below the light source plate.

As a preferred technical scheme, the positioning and placing plate comprises a bearing part and a connecting part, wherein the bearing part is positioned between the camera and the light source plate, a light transmission groove is formed in the position, corresponding to the camera, of the bearing part, the light source plate covers the lower part of the light transmission groove, the connecting part is fixed on the positioning table, and the positioning table is positioned outside the longitudinal three-dimensional space of the light source plate.

As a preferred technical scheme, the light source board includes main part board and vice body board, the main part board is fixed on the vision support, vice body board is located the main part board is close to one side of screen printing device, vice body board passes through the light source cylinder and installs on the vision support, the first tool groove of stepping down has still been seted up to the portion of bearing, first tool is stepped down the groove and is located the portion of bearing is kept away from the one end of light source cylinder.

As a preferred technical scheme, the screen printing device comprises a screen printing assembly, an actuating mechanism and a screen printing platform, wherein the actuating mechanism is located above the screen printing assembly, the screen printing platform is located below the screen printing assembly, a second jig abdicating groove is formed in the screen printing platform, and the linear transfer device is located below the screen printing platform.

As an preferable technical scheme, the execution mechanism comprises an execution seat, an execution slider and an execution head, wherein the execution slider is longitudinally and slidably connected with the execution seat, the execution head is arranged at the lower end of the execution slider, a pressure sensor is arranged between the execution head and the execution slider, and the execution head is slidably connected with the execution slider.

As a preferred technical scheme, the selective examination unloader includes the board of accepting and the buffer memory board that sets up side by side, the straight line moves the device and is located accept the below of board, it is provided with the unloading manipulator to accept the top of board and buffer memory board, be provided with two sets of panel sucking discs on the unloading manipulator, it is provided with the selective examination mechanism to accept the board to keep away from one side of buffer memory board, one side of selective examination mechanism is provided with the selective examination manipulator.

As a preferable technical scheme, the bearing plate is provided with a translation abdication groove and a lifting abdication groove, the translation abdication groove is communicated with the lifting abdication groove, and the shape of the lifting abdication groove is the same as the shape of the transfer jig of the linear transfer device.

As a preferable technical scheme, the feeding device comprises an originating feeding assembly and a transferring feeding assembly, and the originating feeding assembly and the transferring feeding assembly are respectively arranged on two adjacent sides of the centering device.

As a preferable technical scheme, a turnover device is arranged on one side of the centering device, which is close to the transfer feeding assembly.

The beneficial effects of the invention are as follows: the linear screen printer is characterized in that the linear transfer device with the double transfer jigs is arranged below the three operation devices, so that double-station simultaneous transfer of plate pieces can be realized, the transfer efficiency is improved, structural interference between the linear transfer device and the operation devices can be avoided, and the overall structure is more compact and the overall action matching is more efficient.

Drawings

The invention is described in further detail below with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a screen printing machine according to an embodiment;

FIG. 2 is a top view of a screen printer according to an embodiment;

fig. 3 is a schematic structural view of a turnover device according to an embodiment;

fig. 4 is a schematic structural view of a linear motion transferring apparatus according to an embodiment;

FIG. 5 is a schematic view of a first view angle of a visual positioning device according to an embodiment;

FIG. 6 is a schematic diagram of a second view of the visual positioning device according to the embodiment;

FIG. 7 is an enlarged view of a portion of the position A of FIG. 5;

FIG. 8 is a schematic diagram showing a structure of a positioning board and a light source board according to an embodiment;

Fig. 9 is a schematic diagram of a second structure of the positioning board and the light source board according to the embodiment;

fig. 10 is a schematic structural diagram of a screen printing apparatus according to an embodiment;

FIG. 11 is a schematic diagram of an actuator according to an embodiment;

FIG. 12 is a schematic view of a first perspective structure of an actuator (outer housing not shown) according to an embodiment;

FIG. 13 is a schematic view of a first view structure of an actuator (connecting slider not shown) according to an embodiment;

FIG. 14 is an enlarged view of a portion of the position B of FIG. 13;

FIG. 15 is a schematic view of a second perspective structure of an actuator (outer housing not shown) according to an embodiment;

FIG. 16 is a side view of an actuator according to an embodiment;

FIG. 17 is a cross-sectional view taken along the direction C-C of FIG. 16 (omitting a left set of actuator blocks and an actuator head);

FIG. 18 is a schematic view showing the structure of a mesh support according to an embodiment;

Fig. 19 is a schematic structural diagram of a sampling blanking device according to an embodiment;

FIG. 20 is a top view of a spot check blanking apparatus according to an embodiment;

FIG. 21 is a schematic view of a structure of a receiving plate and a buffer plate according to an embodiment;

fig. 22 is a schematic structural diagram of a blanking manipulator according to an embodiment;

FIG. 23 is a schematic structural view of a sampling inspection manipulator according to an embodiment;

Fig. 24 is a schematic structural view of a sampling inspection mechanism according to an embodiment.

In fig. 1 to 24:

10. A dust removal device; 11. a first manipulator; 20. a visual positioning device; 30. a screen printing device; 40. a sampling inspection blanking device; 50. a linear transfer device; 51. a transfer head; 511. transferring a jig; 60. a centering device; 61. a second manipulator; 70. a feeding device; 71. an originating loading assembly; 72. a transfer feeding assembly; 80. a turnover device; 81. a turnover motor; 82. turning over the connecting rod; 83. turning over the sucker; 84. overturning the limit column;

Visual positioning device 20:

21. a visual support; 211. fixing the column; 212. a top plate;

22. A camera;

23. a light source board; 231. a main body plate; 232. an auxiliary body plate; 233. a light source cylinder;

24. positioning a placement plate; 241. a carrying part; 2411. a light transmission groove; 2412. a first jig abdicating groove; 242. a connection part; 243. a reinforcing plate; 2431. a jig channel;

25. a positioning table;

26. A vision translation mechanism; 261. a vision translation plate; 262. a vision translation motor; 263. a visual vertical plate; 264. and a height adjusting member.

Screen printing apparatus 30:

310. A mesh support; 3101. a main support rod; 3102. a supporting plate; 311. a screen printing plate; 312. a fixed cylinder;

320. An execution seat; 321. an internal support; 322. an outer housing; 323. a screw fixing plate; 324. a buffer block;

330. executing a sliding block; 331. a center relief hole; 332. a fixing boss;

340. A execution head; 341. the connecting slide block; 342. a transition block; 343. a contour screw; 344. a support block; 345. leveling blocks; 346. a limiting piece; 347. a precision guide rail;

350. executing a motor;

360. executing a lead screw;

370. A pressure sensor;

380. A scraper;

390. ink returning knife;

3100. a screen printing seat;

3110. A translation mechanism;

3120. a hanging piece;

3130. A screen printing platform;

sampling and inspecting blanking device 40:

41. A receiving plate; 411. translating the abdication groove; 412. lifting abdication groove;

42. A buffer plate;

44. A blanking manipulator; 441. a blanking slide rail; 442. a blanking slide block; 443. a blanking lifting cylinder; 444. a plate sucker;

45. A spot check mechanism; 451. a work rest lifting motor; 452. sampling and checking a placing rack; 4521. placing a plate; 4522. taking and placing the notch; 4523. a connecting plate; 4524. a mounting plate;

46. a sampling manipulator; 461. sampling the slide rail; 462. a slide block is inspected in a sampling way; 463. a sampling inspection lifting cylinder; 464. and (5) sampling the sucker.

Detailed Description

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 4, a linear screen printer comprises a dust removing device 10, a visual positioning device 20, a screen printing device 30 and a sampling inspection blanking device 40 which are sequentially distributed in a straight line, and further comprises a linear transfer device 50, wherein the linear transfer device 50 comprises two transfer heads 51 which are arranged upwards, the linear transfer device 50 is positioned below the visual positioning device 20, the screen printing device 30 and the sampling inspection blanking device 40, a centering device 60 is arranged on one side of the dust removing device 10, and a feeding device 70 is arranged on one side of the centering device 60 away from the sampling inspection blanking device 40. In this embodiment, the centering device 60 is located on the adjacent side of the dust removing device 10 where the visual positioning device 20 is connected, that is, the centering device 60, the dust removing device 10 and the visual positioning device 20 are in a right-angle layout, and the dust removing device 10 is located at a folded angle position, so that the length of the linear screen printer can be shortened by setting a right-angle layout structure, which is beneficial to workshop layout. The side of the dust removing device 10 remote from the centring device 60 is provided with a first manipulator 11, the first manipulator 11 being used for transferring sheet material from the dust removing device 10 to the visual positioning device 20. A second robot 61 is provided on one side of the centring device 60, the second robot 61 being used to transfer sheet material from the centring device 60 to the dust removal device 10. The installation height of the second manipulator 61 is greater than that of the first manipulator 11, and interference between the first manipulator 11 and the second manipulator 61 can be avoided through the longitudinal dislocation layout design, so that the overall structure is more compact and the overall action matching is more efficient.

The linear transfer device 50 of the present embodiment is used for transferring the sheet material from the vision positioning device 20 to the screen printing device 30 and transferring the sheet material from the screen printing device 30 to the spot inspection blanking device 40. By arranging the linear transfer device 50 with the double transfer heads 51 below the three working devices, on one hand, double-station simultaneous transfer of plate members can be realized, and transfer efficiency is improved, and on the other hand, structural interference between the linear transfer device 50 and the working devices can be avoided, so that the whole structure is more compact and the whole action cooperation is more efficient.

The loading device 70 includes an originating loading assembly 71 and a transferring loading assembly 72, the originating loading assembly 71 and the transferring loading assembly 72 being disposed on adjacent sides of the centering device 60, respectively. The initial loading assembly 71 is used for manual batch loading, and is suitable for the case that the screen printing process is a single process, namely, the case that the screen printing process and the upstream process are not continuously processed. The transfer and feeding assembly 72 is used for realizing the transition connection with the upstream process, and is suitable for the condition that the screen printing process and the upstream process are processed in a continuous operation. By providing two different loading assemblies, the application range of the loading device 70 can be increased. In addition, in other application scenarios, the feeding device 70 can also realize the function of recycling the plate members in the upstream process, after the plate members reach the transferring and feeding assembly 72, the plate members are transferred to the centering device 60 by the manipulator of the transferring and feeding assembly 72, then the plate members on the centering device 60 are transferred to the tray in the initiating and feeding assembly 71 by the manipulator of the initiating and feeding assembly 71, and finally batch recycling of the plate members is realized through stacking of the trays.

In this embodiment, a turning device 80 is disposed on a side of the centering device 60 near the transfer and feeding assembly 72, the turning device 80 includes a turning motor 81, a turning connecting rod 82 and a turning sucker 83, one end of the turning connecting rod 82 is connected to an output shaft of the turning motor 81, and the other end of the turning connecting rod 82 is provided with the turning sucker 83. One end of the turning connecting rod 82, which is close to the output shaft of the turning motor 81, is provided with a turning limiting column 84 for improving the reliability of the end position of the turning connecting rod 82 and avoiding the turning sucker 83 from striking the centering device 60. According to the embodiment, the turnover device 80 is arranged, so that the incoming material requirements of plate members in different directions can be met, and the applicability of the screen printer in connection with an upstream process is improved.

As shown in fig. 5 to 9, the vision positioning device 20 includes a vision support 21, and a camera 22 and a light source plate 23 mounted on the vision support 21, wherein the camera 22 is located above the light source plate 23, a positioning plate 24 for carrying a plate member is disposed between the camera 22 and the light source plate 23, the positioning plate 24 is mounted on a positioning table 25, and a light beam emitted by the light source plate 23 is received by the camera 22 after passing through the positioning plate 24, and the linear transfer device 50 is located below the light source plate 23. Through placing the board 24 with the location and setting up between camera 22 and light source board 23, and the location is placed the board 24 and is installed on locating bench 25, utilize the sheet spare to shelter from the partial light beam that light source board 23 sent, can make camera 22 cooperate light source board 23 realize the location and place the formation of image of sheet spare on the board 24, and then put the board 24 through locating bench 25 to the location to realize the high accuracy location of sheet spare, and realize the detection to sheet spare shape size.

In the present embodiment, the positioning plate 24 is provided with a light-transmitting groove 2411 at a position corresponding to the camera 22, and the light source plate 23 covers the lower portion of the light-transmitting groove 2411. By providing the light-transmitting grooves 2411, it can be ensured that the light beam emitted from the light source plate 23 can be received by the camera 22 by passing through the positioning plate 24. In other embodiments, the positioning board is a transparent board, and the positioning board does not need to be provided with a light-transmitting groove.

In this embodiment, the visual positioning device 20 further includes a visual translation mechanism 26, the camera 22 is slidably disposed on the visual support 21 through the visual translation mechanism 26, and the light-transmitting slot 2411 is opened along the sliding direction of the camera 22. Through setting up camera 22 and the rectangular form light-transmitting groove 2411 that corresponds that can horizontal migration, make this vision positioner 20 can satisfy the location and the size detection requirement of the panel spare of different specifications, effectively improve the commonality of device. The number of the visual translation mechanisms 26 is four, the four visual translation mechanisms 26 are in a rectangular layout, and each side of the rectangle is provided with one visual translation mechanism 26. Three cameras 22 are installed on each visual translation mechanism 26, three cameras 22 installed on the same visual translation mechanism 26 are in a linear layout, and 212 cameras 22 on the four visual translation mechanisms 26 are integrally distributed in a rectangular shape. Of course, in other embodiments, only one camera may be mounted on each vision translation mechanism. By arranging the four visual translation mechanisms 26 and the corresponding cameras 22, on one hand, the image acquisition can be reliably carried out on a plurality of edges of the plate, and the positioning and detection precision can be improved; on the other hand, the cameras 22 in four directions can be moved, so that the universality of the device can be improved on the premise of ensuring the precision.

In this embodiment, the vision translation mechanism 26 includes a vision translation plate 261 and a vision translation motor 262 for driving the vision translation plate 261 to slide, the vision translation plate 261 is slidably connected with the vision bracket 21, and the camera 22 is mounted on the vision translation plate 261. The four vision translation plates 261 are opposite to each other in pairs, and the sliding directions of the two opposite vision translation plates 261 are opposite, namely close to each other or opposite to each other; the sliding directions of the adjacent two vision translation plates 261 are perpendicular. Specifically, the vision translation motor 262 is drivingly connected to the vision translation plate 261 by a screw. Through the screw connection, the vision translation plate 261 can be enabled to achieve a larger stroke, so that the vision positioning device 20 can meet the use requirements of plate members with more specifications.

The vision bracket 21 includes a fixed column 211 and a top plate 212, wherein one set of two opposing vision translation motors 262 is disposed above the top plate 212, and the other set of two opposing vision translation motors 262 is disposed below the top plate 212. Through the visual translation motor 262 with the vertical dislocation layout, the vertical space above and below the top plate 212 can be fully utilized, so that the overall structure of the device is more compact.

The vision translation mechanism 26 further comprises a vision vertical plate 263, the camera 22 is mounted on the vertical translation plate through the vision vertical plate 263, a height adjusting piece 264 is arranged at the top of the vision vertical plate 263, and one end of the height adjusting piece 264 is connected with the top of the camera 22. The position adjustment of the cameras 22 in the vertical direction can be realized through the height adjusting piece 264, so that the height consistency of the cameras 22 is better adjusted, and the imaging precision and the positioning precision are further improved.

In this embodiment, the positioning board 24 includes a bearing portion 241 and a connecting portion 242, the bearing portion 241 is located between the camera 22 and the light source board 23, a light-transmitting groove 2411 is formed in the bearing portion 241, the connecting portion 242 is fixed on the positioning table 25, and the positioning table 25 is located outside the longitudinal three-dimensional space of the light source board 23. In particular, the positioning stage 25 is a UVW positioning stage. The transfer of the plate member is assisted by the external transfer head 51, the transfer head 51 sucks the plate member from the lower side of the bearing portion 241, and the positioning table 25 is arranged outside the longitudinal three-dimensional space of the light source plate 23, that is, the positioning table 25 is not positioned below the light source plate 23 but is offset, so that a space for the transfer head 51 to enter and exit can be provided, and the plate member transfer is more efficient.

In this embodiment, the upper surface of the bearing portion 241 is provided with an air suction slot, so that the plate member can be fixed by the air suction slot, and the plate member is prevented from being easily displaced. In other embodiments, the upper surface of the bearing part is provided with a protective pad, the protective pad is a transparent pad, and the plate member is placed on the protective pad, and the protective pad can prevent the plate member from being damaged on one hand and can ensure that the light beam passes through and reaches the camera on the other hand.

The light source plate 23 includes a main body plate 231 and a sub-body plate 232, the main body plate 231 is in a U-shaped structure, and the sub-body plate 232 is located at an opening position of the main body plate 231. The main body plate 231 is fixed on the vision support 21, the auxiliary body plate 232 is located one side of the main body plate 231, which is close to the screen printing device 30, the auxiliary body plate 232 is installed on the vision support 21 through the light source cylinder 233, the light source cylinder 233 is located one side of the light source plate 23, which is far away from the positioning table 25, the bearing portion 241 is further provided with the first jig relief groove 2412, and the first jig relief groove 2412 is located at one end of the bearing portion 241, which is far away from the light source cylinder 233. Specifically, through setting up mobilizable vice body board 232, realize providing more even light beam for camera 22 on the one hand, guarantee imaging accuracy, on the other hand realizes opening and close of main part board 231, for moving the business turn over of head 51 and provide the space, set up the first tool groove 2412 of stepping down in the one end of keeping away from light source cylinder 233 simultaneously, can shorten vice body board 232 and realize stepping down required stroke to improve the efficiency of stepping down of vice body board 232 and move the efficiency that head 51 draws panel spare.

In the embodiment, a reinforcing plate 243 is disposed at one end of the bearing portion 241, the reinforcing plate 243 is disposed at one end of the bearing portion 241 where the first fixture yielding groove 2412 is formed, and a fixture channel 2431 is disposed at the lower end of the reinforcing plate 243. Through setting up the reinforcing plate 243, can guarantee the intensity of carrying part 241, avoid carrying part 241 to warp because of having seted up first tool and give way groove 2412, set up tool passageway 2431 simultaneously in the lower extreme of reinforcing plate 243, can provide the passageway of shifting out for carrying head 51 and panel spare. Specifically, after the plate member is positioned, the auxiliary body plate 232 is driven by the light source cylinder 233 to move to a side far away from the positioning table 25, exposing a space right below the first jig giving-up groove 2412, and the transferring jig 511 of the transferring head 51 enters from the lower side of the bearing portion 241 and reaches the right lower side of the plate member in the working process, then moves upwards to reach the upper side of the bearing portion 241 through the first jig giving-up groove 2412 and achieves the suction of the plate member, and finally the transferring jig 511 carries the plate member to horizontally move through the first jig giving-up groove 2412 and finally leaves the visual positioning device 20 through the jig channel 2431.

As shown in fig. 10 to 18, the screen printing device 30 includes a screen printing assembly, an executing mechanism and a screen printing platform 3130, the executing mechanism is located above the screen printing assembly, the screen printing platform 3130 is located below the screen printing assembly, a second fixture abdicating groove is formed in the screen printing platform 3130, and the linear transfer device 50 is located below the screen printing platform 3130.

The execution mechanism comprises an execution seat 320, an execution slider 330 and an execution head 340, wherein the execution slider 330 is longitudinally and slidably connected with the execution seat 320, the execution head 340 is arranged at the lower end of the execution slider 330, a pressure sensor 370 is arranged between the execution head 340 and the execution slider 330, and the execution head 340 is slidably connected with the execution slider 330. When the actuator head 340 presses the screen assembly and contacts the sheet member, the actuator head 340 is pressed upward, and at this time, the pressure sensor 370 follows the actuator head 340 to move upward and contact the lower end of the actuator slider 330, so that the pressure sensor 370 acquires the interaction force between the actuator head 340 and the sheet member, thereby providing the data base of pressure control to the screen printing device 30. Specifically, the separate execution slider 330 and the execution head 340 are provided, and the pressure sensor 370 is provided therebetween, so that the screen printing device 30 can obtain the acting force between the execution head 340 and the plate in a more direct, efficient and real-time manner, thereby realizing the fine adjustment of the longitudinal position of the execution head 340 and further improving the operation precision of the screen printing device 30.

In this embodiment, the screen printing apparatus 30 further includes a screen printing seat 3100 and a translation mechanism 3110 mounted on the screen printing seat 3100, the translation mechanism 3110 is longitudinally slidably connected to the screen printing seat 3100, an executing mechanism is mounted on the translation mechanism 3110, the executing mechanism is horizontally slidably connected to the translation mechanism 3110, a screen assembly is fixed on the translation mechanism 3110, and the screen assembly is located below the translation mechanism 3110. The actuator is coupled to the translation mechanism 3110 via a suspension 3120, one end of the suspension 3120 is fixedly coupled to the actuator, and the other end of the suspension 3120 is slidably coupled to the translation mechanism 3110. The translation mechanism 3110 connecting the screen printing seat 3100 and the executing mechanism is arranged, so that the executing mechanism can longitudinally advance and retreat in a large stroke, the plate piece is close to and far away from the executing mechanism, the operation horizontal movement is realized, and ink scraping is realized.

In this embodiment, the executing mechanism further includes an executing motor 350 and an executing screw 360, the executing motor 350 is mounted on the top of the executing seat 320, the output shaft of the executing motor 350 is downward, the executing screw 360 is vertically disposed, the executing screw 360 is connected with the output shaft of the executing motor 350, and the executing slider 330 is in threaded connection with the executing screw 360. By arranging the execution motor 350 to drive the execution slider 330 to move longitudinally, on one hand, the quick feeding and retracting of the execution slider 330 can be realized, and on the other hand, the moving distance of the execution slider 330 can be adjusted, so that the requirements of work objects with different shapes can be met, and the universality of equipment can be improved. The longitudinal movement of the conventional screen printing device is generally achieved through a two-stage cylinder structure, the first stage is used for achieving rapid advance and retreat of the execution slider 330, the second stage is used for achieving micro adjustment of the distance between the execution slider 330 and the plate member, the two-stage cylinder structure is complex, the device cost is high, and the design structure of the scheme is lower in cost than that of the conventional screen printing device.

In this embodiment, the actuating seat 320 includes an inner bracket 321 and an outer housing 322 surrounding the outer side of the inner bracket 321, the actuating slider 330 is slidably connected with the inner bracket 321, the actuating motor 350 is mounted on top of the inner bracket 321, and the actuating slider 330 and the actuating screw 360 are located in a gap space formed by the inner bracket 321 and the outer housing 322. The internal support 321 is provided with a screw fixing plate 323, the execution slider 330 is provided with a central relief hole 331, the central relief hole 331 is a strip-shaped hole extending along the longitudinal direction, the screw fixing plate 323 penetrates through the central relief hole 331, one end of the execution screw 360, which is far away from the execution motor 350, is connected with the screw fixing plate 323, and a threaded connection structure of the execution slider 330 and the execution screw 360 is located above the central relief hole 331. The screw fixing plate 323 penetrating the center relief hole 331 is provided, and the screw connection structure is arranged above the center relief hole 331, so that the whole structure of the actuator can be more compact and miniaturized.

The screw fixing plate 323 is provided with a buffer block 324, the buffer block 324 penetrates through the screw fixing plate 323, and the buffer block 324 is located in the center yielding hole 331. By providing the buffer block 324 in the center relief hole 331, hard collision of the actuator slider 330 with the screw fixing plate 323 can be avoided, and damage can be prevented, thereby improving the service life of the apparatus.

In this embodiment, the execution head 340 includes a connection slider 341 and a transition block 342 mounted on the connection slider 341, the connection slider 341 is located on a side surface of the execution slider 330, the transition block 342 is located below the execution slider 330, a transition mounting groove is formed at the top of the transition block 342, the pressure sensor 370 is mounted in the transition mounting groove, and the pressure sensor 370 protrudes from an upper surface of the transition block 342, and the connection slider 341 and the execution slider 330 are slidably connected through a precise guide rail 347. By providing the connecting slider 341 and the executing slider 330 slidably with each other, pressure monitoring of the executing head 340 and the external sheet member is achieved so that the screen printing apparatus 30 adjusts the pressure in real time.

The execution head 340 further includes two equal-height screws 343, two sides of the bottom of the execution slider 330 are respectively provided with a fixing boss 332, each fixing boss 332 is provided with one equal-height screw 343, and the equal-height screws 343 penetrate through the fixing bosses 332 and are in threaded connection with the transition block 342. By providing the contour screw 343, on the one hand, the disengagement of the actuator head 340 from the actuator slider 330 is avoided, and on the other hand, the maximum stroke of the actuator head 340 is effectively controlled, thereby ensuring the reliability of pressure detection.

The execution head 340 further comprises a supporting block 344 and a leveling block 345, wherein the supporting block 344 is connected with the transition block 342, the leveling block 345 is sleeved outside the supporting block 344, and the leveling block 345 is connected with the supporting block 344 in a swinging mode. The middle part of supporting shoe 344 is provided with the back shaft, and the back hole has been seted up at the middle part of leveling piece 345, and the back shaft inserts in the back hole. By arranging the supporting blocks 344 and the leveling blocks 345 which are connected with each other in a swinging way, the execution head 340 can realize small-angle position adjustment so as to adapt to the surface shapes of different plate members, thereby improving the universality of the device. The two ends of the leveling block 345 are provided with a limiting piece 346, the limiting piece 346 is in threaded connection with the leveling block 345, and the limiting piece 346 can be in contact with the supporting block 344, so that the swinging angle of the leveling block 345 is limited.

In this embodiment, the number of the actuators is two, and the two actuators share the same actuator seat 320, wherein the bottom of the actuator head 340 of one actuator is mounted with the doctor blade 380, the bottom of the actuator head 340 of the other actuator is mounted with the ink return knife 390, and both the doctor blade 380 and the ink return knife 390 are mounted at the bottom of the leveling block 345. The two actuators are juxtaposed and the actuator with doctor 380 is at the front end of the actuator with ink return blade 390 in the horizontal direction of travel. The horizontal movement direction of the operation refers to the horizontal movement direction of the executing mechanism in the process of wiping the screen printing.

In this embodiment, the screen assembly includes a screen support 310 and a screen 311 mounted on the screen support 310, the screen support 310 includes two main support bars 3101 and a support plate 3102 fixed to the bottom of the main support bars 3101, and the support plate 3102 is mounted on both ends of the main support bars 3101. The screen assembly further includes a stationary cylinder 312, the stationary cylinder 312 being mounted above the screen support 310. The fixed cylinder 312 can clamp and fix the screen 311 quickly, and the screen 311 can be positioned and replaced quickly. By arranging the supporting plates 3102 at the two ends of the main supporting rod 3101, the middle part of the lower part of the main supporting rod 3101 forms a yielding space, and the design can assist in yielding the lower plate member, so that the lifting height of the screen plate 311 is shortened, and the operation efficiency of the screen printing device 30 is improved.

As shown in fig. 19 to 24, the sampling and blanking device 40 includes a receiving plate 41 and a buffer plate 42 that are arranged in parallel, a linear transfer device 50 is arranged below the receiving plate 41, a blanking manipulator 44 is arranged above the receiving plate 41 and the buffer plate 42, two groups of plate suckers 444 are arranged on the blanking manipulator 44, a sampling and checking mechanism 45 is arranged on one side of the receiving plate 41 away from the buffer plate 42, and a sampling and checking manipulator 46 is arranged on one side of the sampling and checking mechanism 45. The linear transfer device 50 transfers one plate member which is finished to be processed to the receiving plate 41, the blanking manipulator 44 transfers the plate member to the buffer plate 42, then the linear transfer device 50 transfers the other plate member which is finished to be processed to the receiving plate 41, and the blanking manipulator 44 transfers the two plate members on the receiving plate 41 and the buffer plate 42 simultaneously to realize blanking. In this process, if the visual inspection and judgment of the unqualified plate member occurs, the sampling inspection manipulator 46 will transfer the plate member from the receiving plate 41 to the sampling inspection mechanism 45, and the device sends out a warning prompt, and the operator manually rechecks the plate member, so that batch faults are avoided. According to the embodiment, the buffer plate 42 parallel to the bearing plate 41 is arranged, and the blanking manipulator 44 simultaneously sucks two plate pieces from the bearing plate 41 and the buffer plate 42, so that on one hand, the whole stroke of the blanking manipulator 44 can be shortened, the transfer efficiency of the plate pieces is improved, on the other hand, the bearing plate 41 can be utilized to serve as one of the plate pieces for blanking, the second buffer plate 42 can be omitted, the device structure is simplified, and the device cost is reduced.

For the unloader that sets up two buffering stations, need to shift two panel spare to two buffering stations in proper order earlier, then follow this kind of design that two panel spare were realized synchronous unloading from two buffering stations simultaneously to rethread manipulator, this scheme need not to just whole unloading after shifting whole panel spare to buffering station, but only need shift one of them panel spare to buffering station, can realize the synchronous unloading of two panel spare, this kind of design of scheme can omit a buffer board 42 to and omit a transfer action, thereby can simplify the device structure and improve unloading efficiency.

In this embodiment, the receiving plate 41 is provided with a translation yielding slot 411 and a lifting yielding slot 412, the translation yielding slot 411 is communicated with the lifting yielding slot 412, the shape of the lifting yielding slot 412 is the same as that of the transferring jig 511 of the linear transferring device 50, and the size of the lifting yielding slot 412 is enlarged 2mm to 4mm outwards relative to the size of the transferring jig 511. After the transfer jig 511 of the linear transfer device 50 moves upwards and absorbs the plate, the transfer jig 511 and the plate of the linear transfer device 50 are higher than the bearing plate 41, the transfer jig 511 drives the plate to translate towards the bearing plate 41, the transfer jig 511 moves from the translation giving-up groove 411 to enter the center of the bearing plate 41, at the moment, the transfer jig 511 and the plate are located above the bearing plate 41, then the transfer jig 511 moves downwards, passes through the lifting giving-up groove 412 to reach the lower side of the bearing plate 41, and finally the transfer jig 511 translates and resets from the lower side of the bearing plate 41. Through setting up translation and letting out the groove 411 and go up and down and letting out the groove 412 to and the cooperation sets up the straight line that is located and holds the board 41 below and moves the device 50, can make the transfer drive structure of panel spare be located the below that holds board 41, make full use of holds board 41's below space, reserved the space of top for other transfer drive structures, avoid mutual interference or influence work efficiency.

The blanking manipulator 44 includes a blanking slide rail 441 and a blanking slide block 442, the blanking slide block 442 is slidably mounted on the blanking slide rail 441, the sampling inspection manipulator 46 includes a sampling inspection slide rail 461 and a sampling inspection slide block 462, the sampling inspection slide block 462 is slidably mounted on the sampling inspection slide rail 461, and the sampling inspection slide rail 461 and the sampling inspection slide block 462 are located below the blanking slide rail 441 and the blanking slide block 442. The discharging manipulator 44 further includes a discharging lifting cylinder 443, the discharging lifting cylinder 443 is mounted on the discharging slide 442, and two sets of plate suckers 444 are mounted on the movable ends of the discharging lifting cylinder 443. The sampling manipulator 46 further includes a sampling lifting cylinder 463, the sampling lifting cylinder 463 is mounted on a sampling slider 462, and a sampling suction cup 464 is provided at a movable end of the sampling lifting cylinder 463. By the discharging manipulator 44 and the sampling inspection manipulator 46 which are arranged in a vertically staggered manner, the longitudinal space can be fully utilized, which is beneficial to reducing the horizontal occupied area of the sampling inspection discharging device 40 and further beneficial to the process layout of the sampling inspection discharging device 40.

In this embodiment, the sampling mechanism 45 includes a sampling rack 452 and a rack lifting motor 451, the sampling rack 452 is mounted on a movable end of the rack lifting motor 451, and the sampling rack 452 includes three layers of placement boards 4521 arranged vertically. Through setting up the three-layer board 4521 and work or material rest elevator motor 451, make the selective examination mechanism 45 can place a plurality of panel spare to reduce operator's timeliness processing pressure, reduce the line of stopping of production line unusual. In other embodiments, the number of placement boards 4521 may also be two or four or five or more.

In this embodiment, the material rack lifting motor 451 is located on one side of the sampling test rack 452 away from the sampling test manipulator 46, and the material rack lifting motor 451 and the sampling test manipulator 46 are respectively disposed on two sides of the rack, so that interference between the material rack lifting motor 451 and the sampling test manipulator 46 in space can be avoided, and the material rack lifting motor and the sampling test manipulator have larger design freedom degree, so that design and processing difficulty are reduced. The side of placing plate 4521 that keeps away from receiving plate 41 is provided with gets and places breach 4522, can make things convenient for the operator to snatch panel spare, improves the operating efficiency.

The side of the sampling test rack 452 away from the rack lift motor 451 is provided with a connection board 4523, the connection board 4523 is connected with the all-placement board 4521, and the connection board 4523 is located at the side away from the receiving board 41. Through setting up offset connecting plate 4523, can dodge the spot check sucking disc 464 of spot check manipulator 46 to simplify the design degree of difficulty of spot check manipulator 46, and make spot check mechanism 45 and spot check manipulator 46's whole overall arrangement compacter, do benefit to the miniaturization that realizes the device. In addition, a mounting plate 4524 is provided in the middle of the side of the sampling test rack 452 near the rack lifting motor 451, the mounting plate 4524 is connected with the all placement plates 4521, and the mounting plate 4524 is fixedly connected with the movable end of the rack lifting motor 451. By providing the mounting plate 4524 at the center, the connection reliability of the placement plate 4521 can be improved.

In this embodiment, the receiving plate 41 and the buffer plate 42 are integrally formed, and the receiving plate 41 and the buffer plate 42 can be formed into a single member or station by this design, so that the manufacturing process and the mounting and fixing structure of the receiving plate 41 and the buffer plate 42 are simplified, and the assembly efficiency is improved.

The terms "first" and "second" are used herein for descriptive purposes only and are not intended to have a particular meaning.

It should be noted that the above embodiments are merely preferred embodiments of the present invention and the applied technical principles, and any changes or substitutions easily conceivable to those skilled in the art within the scope of the present invention are included in the scope of the present invention.

Claims

1. The linear screen printer is characterized by comprising a dust removing device, a visual positioning device, a screen printing device and a sampling inspection blanking device which are sequentially distributed in a linear manner, and further comprising a linear transfer device, wherein the linear transfer device comprises two transfer jigs which are arranged upwards, the linear transfer device is positioned below the visual positioning device, the screen printing device and the sampling inspection blanking device, one side of the dust removing device is provided with a centering device, and one side of the centering device, which is far away from the sampling inspection blanking device, is provided with a feeding device;

The visual positioning device comprises a visual support, a camera and a light source plate, wherein the camera and the light source plate are arranged on the visual support, the camera is positioned above the light source plate, a positioning plate for bearing plate members is arranged between the camera and the light source plate, the positioning plate is arranged on a positioning table, light beams emitted by the light source plate penetrate through the positioning plate and are received by the camera, and the linear transfer device is positioned below the light source plate;

the positioning and placing plate comprises a bearing part and a connecting part, the bearing part is positioned between the camera and the light source plate, a light transmission groove is formed in the position, corresponding to the camera, of the bearing part, the light source plate covers the lower part of the light transmission groove, the connecting part is fixed on the positioning table, and the positioning table is positioned outside the longitudinal three-dimensional space of the light source plate;

The light source plate comprises a main body plate and an auxiliary body plate, the main body plate is fixed on the visual support, the auxiliary body plate is positioned on one side, close to the screen printing device, of the main body plate, the auxiliary body plate is installed on the visual support through a light source cylinder, a first jig abdicating groove is further formed in the bearing part, and the first jig abdicating groove is positioned at one end, far away from the light source cylinder, of the bearing part;

The screen printing device comprises a screen printing assembly, an actuating mechanism and a screen printing platform, wherein the actuating mechanism is located above the screen printing assembly, the screen printing platform is located below the screen printing assembly, a second jig abdicating groove is formed in the screen printing platform, and the linear transfer device is located below the screen printing platform.

2. The linear screen printer according to claim 1, wherein the actuator comprises an actuator seat, an actuator slider and an actuator head, the actuator slider is longitudinally slidably connected with the actuator seat, the actuator head is disposed at the lower end of the actuator slider, a pressure sensor is disposed between the actuator head and the actuator slider, and the actuator head is slidably connected with the actuator slider.

3. The linear screen printer according to claim 1, wherein the sampling and inspecting discharging device comprises a receiving plate and a buffer plate which are arranged in parallel, the linear transferring device is located below the receiving plate, a discharging manipulator is arranged above the receiving plate and the buffer plate, two groups of plate suckers are arranged on the discharging manipulator, a sampling and inspecting mechanism is arranged on one side, away from the buffer plate, of the receiving plate, and a sampling and inspecting manipulator is arranged on one side of the sampling and inspecting mechanism.

4. A rectilinear screen printing machine according to claim 3, wherein the receiving plate is provided with a translation abdication groove and a lifting abdication groove, the translation abdication groove is communicated with the lifting abdication groove, and the lifting abdication groove has the same shape as the transfer jig of the rectilinear transfer device.

5. The linear screen printing machine of claim 1, wherein the loading device comprises an originating loading assembly and a transferring loading assembly, the originating loading assembly and the transferring loading assembly being disposed on adjacent sides of the centering device, respectively.

6. The linear screen printer of claim 5, wherein a turning device is disposed on a side of the centering device adjacent to the transfer and feed assembly.