CN111252491A

CN111252491A - Feeding and discharging equipment for silk screen printing

Info

Publication number: CN111252491A
Application number: CN202010219446.9A
Authority: CN
Inventors: 赵继伟; 包克兵; 续振林; 陈明峰; 朱石宝
Original assignee: Xiamen Jude Electronic Technology Co ltd; Xiamen Hongxin Electronic Technology Group Co Ltd
Current assignee: Xiamen Jude Electronic Technology Co ltd; Xiamen Hongxin Electronic Technology Group Co Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-06-09

Abstract

The invention discloses a silk-screen printing feeding and discharging device which comprises a rack, a tray conveying and caching mechanism, a tray feeding and discharging mechanism, a tray carrying mechanism, a material moving manipulator and a feeding platform mechanism, wherein the tray conveying and caching mechanism is arranged on the rack; the rack is provided with a workbench and a tray feeding and discharging space, the tray conveying caching mechanism penetrates through the tray feeding and discharging space of the rack, the tray feeding and discharging mechanism can move up and down relative to the tray conveying caching mechanism, the tray carrying mechanism is transversely erected on the rack above the corresponding tray conveying caching mechanism, the tray carrying mechanism moves in the space above the tray feeding and discharging mechanism, the material moving manipulator is arranged on the rack on one side of the tray feeding and discharging mechanism, and the material moving manipulator rotates in multiple stations in the space above the rack; the feeding platform mechanism is arranged on a workbench of the rack and is close to one side of the tray feeding and discharging mechanism and the material moving manipulator. The invention can be matched with the prior semi-automatic screen printing machine, transforms the screen printing machine into a full-automatic screen printing machine, fully utilizes the prior equipment resources and realizes the automation of the silk printing process of products.

Description

Feeding and discharging equipment for silk screen printing

Technical Field

The invention relates to the technical field of production equipment of flexible circuit boards, in particular to feeding and discharging equipment for silk screen printing.

Background

In the production process of the flexible circuit board, a silk-screen process is often needed to print character ink, impedance ink and the like for the flexible circuit board product, and because of the thin and soft characteristics of the flexible circuit board, the current operation mode is mainly completed by manually operating a semi-automatic silk-screen machine, and one person operates one silk-screen machine, which occupies more manpower. Although some full-automatic screen printing machines are available on the market, the cost is high, and a plurality of semi-automatic screen printing machines are purchased in the early stage of most factories, if new full-automatic screen printing equipment is introduced, the existing semi-automatic screen printing equipment can be idle, so that the existing resources are fully utilized, the silk printing process automation is realized to save manpower, and the existing semi-automatic screen printing machines need to be modified and upgraded.

In view of the above, the present invention is developed and designed by the present designer aiming at many defects and inconveniences caused by the incomplete structural design of the existing semi-automatic screen printing machine and actively researching, improving and trying.

Disclosure of Invention

The invention aims to provide a silk-screen printing feeding and discharging device which can be matched with a semi-automatic silk-screen printing machine to realize automatic operation, thereby reducing the labor cost.

In order to achieve the above purpose, the solution of the invention is:

a silk-screen printing feeding and discharging device comprises a rack, a tray conveying and caching mechanism, a tray feeding and discharging mechanism, a tray carrying mechanism, a material moving manipulator and a feeding platform mechanism; a workbench is arranged above one side of the rack, and a tray loading and unloading space is arranged on the other side of the rack; the tray conveying buffer mechanism penetrates through a tray feeding and discharging space of the rack; the tray feeding and discharging mechanism can be movably arranged on one side of the rack, which is correspondingly provided with a tray feeding and discharging space, and can move up and down relative to the tray conveying caching mechanism; the tray carrying mechanism is transversely erected on the rack above the corresponding tray conveying caching mechanism and moves in the space above the tray feeding and discharging mechanism; the material moving manipulator is arranged on the rack on one side of the tray feeding and discharging mechanism and rotates in a multi-station mode in the space above the rack; the feeding platform mechanism is arranged on a workbench of the rack and is close to one side of the tray feeding and discharging mechanism and the material moving manipulator.

Further, the tray conveying caching mechanism comprises an organic framework, a tray discharging conveying assembly and a tray feeding conveying assembly; a tray discharging and conveying assembly and a tray feeding and conveying assembly are arranged on the framework side by side; the tray discharging and conveying assembly comprises a speed reducing motor, a driving wheel, a synchronous wheel, a tension wheel and a synchronous belt; the speed reducing motor is arranged on the middle area of the left outer side of the machine frame, the output end of the speed reducing motor is connected with a driving wheel, two groups of synchronous wheels are distributed on the front end and the rear end of the left side above the machine frame according to the four corners of a rectangle through a mounting seat, two tension wheels are respectively arranged on the two sides above the driving wheel in parallel, and two synchronous belts are respectively longitudinally sleeved on the two groups of synchronous wheels, the tension wheels and the driving wheel in parallel according to the tracks of the synchronous belts; the speed reducing motor drives the synchronous belt to move back and forth through the driving wheel; the front end and the rear end of the tray discharging and conveying assembly are respectively provided with a tray discharging position and a tray descending position; the structure of the tray feeding conveying assembly is the same as that of the tray discharging conveying assembly, and the front end and the rear end of the tray feeding conveying assembly are respectively provided with a tray feeding position and a tray jacking position.

The tray discharging and conveying assembly further comprises a tray discharging position sensing module, and the tray discharging position sensing module is arranged at the front end of the mechanism frame between the two groups of synchronous wheels and used for sensing that the tray moves to the tray discharging position; the tray feeding and conveying assembly further comprises a tray jacking induction module, the tray feeding and jacking induction module is arranged at the rear end of the mechanism frame corresponding to one side of the tray feeding and conveying assembly and located between the two groups of synchronizing wheels, and the tray jacking induction module is arranged on a protective cover of a tray feeding and discharging mechanism corresponding to the lower side of the tray jacking position or arranged on the protective cover of the tray feeding and discharging mechanism corresponding to the lower side of the tray jacking position and used for inducing the tray to move to the tray jacking position.

Further, the tray discharging and conveying assembly also comprises side baffles, and the two side baffles are arranged above the mechanism frame outside the two synchronous belts of the tray discharging and conveying assembly in parallel; the tray feeding and conveying assembly further comprises side baffles, and the two side baffles are arranged above the mechanism frame outside the two synchronous belts of the tray feeding and conveying assembly in parallel. Further, the tray feeding and discharging mechanism comprises a mechanism fixing plate, and a tray feeding assembly and a tray discharging assembly which are arranged on two sides of the front of the fixing plate side by side; the tray blanking assembly comprises a Y-axis module, a linear guide rail and a tray lifting frame; the Y-axis module is vertically arranged on one side of the front side face of the mechanism fixing plate, the two linear guide rails are arranged on two sides of the Y-axis module in parallel, the tray lifting frame is fixed on the guide rail sliding blocks of the two linear guide rails and connected with the sliding blocks of the Y-axis module, and the Y-axis module drives the tray lifting frame to vertically move up and down along the direction of the linear guide rails; the tray feeding assembly and the tray discharging assembly are identical in structure.

Further, the tray lifting frame comprises a sliding plate and a tripod; the sliding plate is erected on the guide rail sliding blocks of the two linear guide rails and is connected with the sliding block of the Y-axis module; the two tripods are arranged on the front side surface of the sliding plate vertically in parallel and level, and the tray can be placed above the two tripods.

Furthermore, the tray blanking assembly also comprises a lifting frame induction module, and the lifting frame induction module comprises a lifting frame high-position inductor, a lifting frame low-position limit inductor and a lifting frame induction sheet; the setting of elevating rack high-order inductor is on the leading flank of mechanism's fixed plate, and be located the high-order response department of the movement track of tray crane, the elevating rack low-order inductor, the elevating rack low-order limit inductor sets up respectively on the leading flank of mechanism fixed plate, and be located the movement track low level of tray crane, low level limit response department, the elevating rack response piece sets up and can mark elevating rack high-order inductor on one side is corresponded with elevating rack high-order inductor to the slide, elevating rack low-order inductor and elevating rack low-order limit inductor can be crossed in the vertical induction, a high level for responding to the tray crane at the vertical movement track, the low level limit, protection tray unloading subassembly.

The tray loading and unloading mechanism further comprises a tray loading sensing module and a tray unloading sensing module, wherein the tray loading sensing module is arranged on the rack close to one side of the tray loading assembly and used for sensing the tray loading assembly to lift the tray on the uppermost layer of the stacked trays to the tray loading position; the tray unloading response module sets up in the frame that is close to tray unloading subassembly one side for the material level under the tray is placed to its tray of response tray unloading subassembly.

Further, the tray carrying mechanism comprises a portal frame, an X-axis module, a carrying linear guide rail and a tray grabbing assembly; the X-axis module is arranged above the portal frame, the two conveying linear guide rails are arranged on the portal frame on two sides of the X-axis module in parallel, the tray grabbing component is erected on the guide rail sliding blocks of the two conveying linear guide rails and connected with the sliding blocks of the X-axis module, and the X-axis module drives the tray grabbing component to horizontally move along the direction of the conveying linear guide rails;

the tray grabbing component comprises a sliding seat, a lifting cylinder, a lifting slide block, a switching column, a bidirectional cylinder and a clamping claw block; the two clamping jaw blocks are symmetrically arranged at the tail ends of movable rods at two sides of the two-way cylinder; the lifting cylinder drives the clamping jaw block to vertically move up and down, and the bidirectional cylinder drives the clamping jaw block to open and close left and right.

Furthermore, the tray grabbing assembly further comprises a first buffer and a second buffer, the first buffer is arranged on the upper portion of the lifting cylinder, and the second buffer is arranged on the sliding seat below the lifting cylinder in an inverted mode and used for playing a role in buffering when the lifting slide block vertically moves up and down.

Further, the tray carrying mechanism also comprises a carrying induction module, wherein the carrying induction module comprises a carrying left end inductor, a carrying right end limit inductor and a carrying induction sheet; the carrying left end inductor is arranged on the front side of the portal frame and located at the motion track left end induction position of the tray grabbing component, the carrying right end inductor is arranged on the front side of the portal frame and located at the motion track right end of the tray grabbing component, the carrying right end limit inductor is arranged on the front side of the portal frame and located at the right end limit induction position of the tray grabbing component, the carrying induction sheet is arranged on a sliding seat on one side corresponding to the carrying left end inductor and can horizontally induce and cross the carrying left end inductor, the carrying right end inductor and the carrying right end limit inductor, and the carrying left end inductor, the carrying right end inductor and the carrying right end limit inductor are used for inducing the tray grabbing component at the left end, the right end and the right end of the horizontal motion track so as to protect the tray carrying mechanism.

Further, the material moving manipulator comprises a manipulator and a material sucking jig; the manipulator is a four-axis manipulator, the material suction jig is arranged at the bottom end of the manipulator and comprises a suction nozzle mounting frame and a suction nozzle module; the suction nozzle mounting bracket is arranged at the bottom end of the manipulator, and the plurality of suction nozzle modules can be vertically arranged on the suction nozzle mounting bracket in an adjustable manner.

Furthermore, the material suction jig also comprises material pressing modules, the distribution of the material pressing modules which can be adjusted is vertically arranged on the suction nozzle mounting frame, and the material pressing modules are distributed according to the silk-screen positioning positions of the product; the pressing module comprises a cylinder frame, a pressing cylinder and a soft pressing pad; the cylinder frame is adjustably arranged on the suction nozzle mounting frame, the lower pressing cylinder is vertically arranged on the cylinder frame, and the soft pressing pad is arranged at the bottom end of the movable rod of the lower pressing cylinder; the cylinder frame is used for driving the soft pressing pad to press down the product positioning hole area after a product is placed on the specified position of the screen printing table surface, so that the product is sleeved on and positioned on the positioning PIN of the screen printing table surface, and the product is positioned on the screen printing table surface more accurately by adopting the pressing module because the product is flexible and four corners of the surface of the product are warped; the product shaking function can be started when the material pressing module is needed, when the material moving manipulator drives the material sucking jig to suck the product, the lower pressing cylinder movable rod of the material pressing module positioned at one corner of the material sucking jig shakes up and down for a preset number of times, so that only 1 product is ensured to be sucked once, and because the products are stacked in a whole manner, when the material sucking jig sucks the product, another product is possibly attached below the product.

Further, the feeding platform mechanism comprises a fixing plate, a first bearing, a first guide pillar, a lifting platform, a lifting plate, a second bearing, a second guide pillar, a motor fixing seat, a lifting motor and a screw rod; the fixed plate is arranged on a workbench of the frame and is positioned at one side close to the tray feeding and discharging mechanism and the material moving manipulator, four first bearings are sleeved on four corners of the fixed plate, four first guide pillars are respectively sleeved in the four first bearings, the lifting platform is arranged on the top ends of the four first guide pillars, the lifting plate is arranged on the bottom ends of the four first guide pillars, four second bearings are respectively sleeved on the inner sides of the four first guide pillars corresponding to the lifting plate, four second guide pillars are respectively sleeved in the four second bearings, the top ends of the four second guide pillars are fixedly connected below the fixed plate, the motor fixing seat is arranged on the bottom ends of the four second guide pillars, the lifting motor is inversely arranged below the middle area of the motor fixing seat, one end of the screw rod penetrates through the motor fixing seat and is connected to the output end of the lifting motor through a coupler, and the other end of the screw rod penetrates through the lifting plate and is connected below the, a screw nut of the screw rod is sleeved on the lifting plate; the lifting plate is driven by the lifting motor to drive the lifting platform to vertically move up and down.

Furthermore, the feeding platform mechanism also comprises a platform induction module; the platform sensing module comprises a platform high-position sensor, a platform low-position limit sensor and a platform sensing piece; the high-level inductor of platform sets up on one side below the fixed plate, the low-level inductor of platform, the low-level limit inductor of platform sets up respectively on one side of motor fixing base below and the high-level inductor vertical alignment of platform, the high-level inductor of platform just can be drawn in the vertical sensing to the platform response piece setting on lifter plate and the high-level inductor vertical alignment of platform one side, low-level inductor of platform and the low-level limit inductor of platform, the design is extended respectively at the upper and lower both ends of platform response piece, be provided with high-level and low-level limit induction length respectively, be used for the lifter plate at the high-level of vertical motion orbit, the low level, respond to during the low level limit, protection material loading platform mechanism.

Further, material loading platform mechanism is still including material loading level response module, and material loading level response module sets up in the frame that is located material loading platform mechanism periphery for the top product of whole pile of product reaches product material loading level on the response lift platform. Furthermore, the feeding and discharging device for silk screen printing further comprises a cleaning mechanism, wherein the cleaning mechanism comprises a module fixing frame, a linear module, a cleaning linear guide rail and a cleaning assembly; the module fixing frame is longitudinally arranged on the machine frame outside the feeding platform mechanism, the linear module is arranged on the module fixing frame, the two cleaning linear guide rails are arranged on the module fixing frames on two sides of the linear module in parallel, the cleaning assembly is erected on the guide rail sliding blocks of the two cleaning linear guide rails and connected with the sliding blocks of the linear module, and the linear module drives the cleaning assembly to move back and forth along the direction of the cleaning linear guide rails.

Further, the cleaning component comprises a sliding plate, a suspension wall pressing block, a swinging block, a cleaning roller, a limiting block and a buffering pin; the sliding plate is erected on the guide rail sliding blocks of the two cleaning linear guide rails and connected with the sliding blocks of the linear module, one end of the suspension wall is arranged on the sliding plate through two suspension wall pressing blocks, one swinging block is arranged on the suspension wall close to one side of the module fixing frame through a bearing sleeve, the other swinging block is arranged on the bottom end of the other end of the suspension wall through a bearing sleeve, the cleaning idler wheels are arranged on the bottom ends of the inner sides of the two swinging blocks, the two limiting blocks are arranged on the suspension wall close to the inner sides of the two swinging blocks in a sleeved mode, the limiting blocks and the swinging blocks are buffered and tightly abutted through the buffer pins, and the cleaning idler wheels are prevented from swinging randomly during cleaning.

Furthermore, the cleaning mechanism also comprises a cleaning induction module; the cleaning induction module comprises a cleaning left end inductor, a cleaning right end limit inductor and a cleaning induction sheet; clean left end inductor sets up on one side of module mount, and correspond the left end response department of clean subassembly motion trail, clean right-hand member inductor and clean right-hand member limit inductor set up respectively on the module mount, and correspond the right-hand member of clean subassembly motion trail, right-hand member limit response department, clean response piece sets up and corresponds one side and can cross clean left end inductor by the horizontal induction at the sliding plate with clean left end inductor, clean right-hand member inductor and clean right-hand member limit inductor, be used for clean subassembly at the horizontal motion trail left end, the right-hand member, the response of right-hand member during limit, clean mechanism of protection.

Furthermore, the feeding and discharging device for silk-screen printing further comprises a material arranging mechanism, wherein the material arranging mechanism comprises a first cylinder, a second cylinder, a third cylinder, a first push plate, a second push plate and a third push plate; first cylinder, second cylinder, third cylinder set up respectively on being close to the workstation of material loading platform mechanism rear side and left and right sides, and first push pedal, second push pedal and third push pedal set up respectively in the movable rod bottom of first cylinder, second cylinder, third cylinder, and after whole pile of product was placed at lift platform, first cylinder, second cylinder, third cylinder drive first push pedal, second push pedal and third push pedal respectively will be whole pile of product and concentrate the reason material neat.

The feeding and discharging equipment for silk-screen printing further comprises a camera, wherein the camera is arranged on the corresponding outer cover rack above the feeding platform mechanism, can identify the uppermost product placed on the lifting platform, and starts the material arranging mechanism to centralize and arrange a stack of products in order when the camera visually judges the position deviation of the products; after the products are tidily arranged, the camera visually judges the positions of the products again, the positions of the products are fed back and moved by the material moving mechanical arm, if the products are offset, the material moving mechanical arm absorbs the products and then performs rotary correction, and then the products are carried to the screen printing table board.

After the scheme is adopted, the tray conveying and caching mechanism adopted by the silk-screen printing feeding and discharging device is provided with the tray discharging and conveying assembly and the tray feeding and conveying assembly which are independently controlled, and after the whole stack of empty trays placed on the tray feeding and conveying assembly is transferred to the tray lifting frame of the tray feeding assembly, the whole stack of empty trays can be placed on the tray feeding position for standby, so that the waiting time is reduced; the tray feeding and discharging mechanism is provided with a tray feeding assembly and a tray discharging assembly which are independently controlled, and both the tray feeding assembly and the tray discharging assembly are provided with tray lifting frames and can descend below a mechanism frame of the tray conveying caching mechanism, so that the tray feeding assembly can receive a whole stack of empty trays conveyed by the tray feeding and conveying assembly, and the whole stack of trays with manufactured products is returned to the tray discharging and conveying assembly, and material transfer is realized; the tray carrying mechanism is provided with a tray grabbing component, the tray grabbing component adopts a clamping jaw block to open and close to grab and place a tray, and the tray is carried from the tray feeding component to the tray discharging component; the manipulator of the material moving manipulator adopts a four-shaft manipulator, products can be flexibly transported above a lifting platform, a screen printing table board and a tray blanking assembly in multiple stations, the products identified by a camera are sucked onto the screen printing table board from the lifting platform, the screen-printed products are transported into an empty tray of the tray blanking assembly from the screen printing table board, a suction nozzle module with adjustable position is arranged on a material sucking jig of the material moving manipulator, the suction nozzle module is distributed and adjusted according to the non-screen printing position of the products, product printing ink is not damaged, a material pressing module with adjustable position can be arranged, the products can be accurately sleeved on a positioning PIN of the screen printing platform according to the arrangement of screen printing positioning holes of the products, the material pressing module 523 can also play a role in shaking the products, and only 1 product can be sucked at a time; the feeding platform mechanism is designed with a lifting function and used for lifting the uppermost product on the feeding platform mechanism to the visual height of the camera, so that the camera can conveniently recognize the uppermost product; after the cleaning mechanism is started, the cleaning mechanism can be lifted to a specified height to be matched with the cleaning mechanism to realize the product cleaning function; the camera is adopted to identify and read the position of the product and provide the position to the material moving manipulator to complete the follow-up action, and meanwhile, the camera can also be used for monitoring whether the product material is neat, is used up and the like; the material arranging mechanism is characterized in that the three sides of the material loading platform mechanism are provided with air cylinders to push plates to realize material arrangement, when products are placed and the products are not orderly due to some reasons in the operation process of the machine table, the material arranging mechanism can be started to arrange the materials, so that manual intervention is reduced, and whether the products are orderly or not can be judged by camera vision; the cleaning component of the cleaning mechanism adopts a cleaning roller with viscosity to roll back over the surface of the product to realize the cleaning function, and the front end of the cleaning roller is provided with a floating mechanism to ensure that the cleaning roller can be well attached to the surface of the product; the screen printing feeding and discharging machine can be matched with the existing semi-automatic screen printing machine, the screen printing feeding and discharging machine is transformed into a full-automatic screen printing machine, the existing equipment resources are fully utilized, the automation of the product silk printing process is realized, one person can operate a plurality of devices, and the labor cost is reduced; the tray discharge end of the tray conveying and caching mechanism can be matched with a curing tunnel furnace, and more intelligent product silk-screen baking assembly line operation is achieved.

Drawings

Fig. 1 is a left side perspective view of the present invention.

Fig. 2 is a right side perspective view of the present invention.

Fig. 3 is a front side view of the present invention.

Fig. 4 is a top view of the present invention.

Fig. 5 is a left side view of the present invention.

Fig. 6 is a right side view of the present invention.

Fig. 7 is a perspective view of the housing of the present invention.

Fig. 8 is a top view of the inventive housing.

Fig. 9 is a perspective view of the tray conveying buffer mechanism of the present invention.

Fig. 10 is a front side view of the tray conveying buffer mechanism of the present invention.

Fig. 11 is a top view of the tray conveying buffer mechanism of the present invention.

Fig. 12 is a left side view of the tray conveying buffer mechanism of the present invention.

Fig. 13 is a perspective view of the tray loading and unloading mechanism of the present invention.

Fig. 14 is a front side view of the tray loading and unloading mechanism of the present invention.

Fig. 15 is a perspective view of the tray conveying mechanism of the present invention.

Fig. 16 is a front side view of the tray conveying mechanism of the present invention.

Fig. 17 is a plan view of the tray carrying mechanism of the present invention.

Fig. 18 is a left side view of the tray handling mechanism of the present invention.

Fig. 19 is a perspective view of the material transferring robot of the present invention.

Fig. 20 is a front side view of the transfer robot of the present invention.

Fig. 21 is a top view of the material transfer robot of the present invention.

Fig. 22 is a perspective view of the feeding platform mechanism of the present invention.

FIG. 23 is a front side view of the loading platform mechanism of the present invention.

Figure 24 is a perspective view of the cleaning mechanism of the present invention.

Figure 25 is a top view of the cleaning mechanism of the present invention.

FIG. 26 is a perspective view of the material organizing mechanism of the present invention.

FIG. 27 is a top view of the material organizing mechanism of the present invention.

FIG. 28 is a schematic view of the use of the present invention.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 6, the present invention is a silk-screen printing feeding and discharging apparatus, which comprises a frame 10, a tray conveying buffer mechanism 20, a tray feeding and discharging mechanism 30, a tray carrying mechanism 40, a material moving manipulator 50 and a feeding platform mechanism 60;

as shown in fig. 7 and 8, a worktable 11 is arranged above one side of the frame 10, and a tray loading and unloading space 12 is arranged on the other side of the frame 10; the tray conveying buffer mechanism 20 passes through the tray loading and unloading space 12 of the rack 10; the tray feeding and discharging mechanism 30 can be movably arranged on one side of the rack 10 corresponding to the tray feeding and discharging space 12, and the tray feeding and discharging mechanism 30 can move up and down relative to the tray conveying cache mechanism 20; the tray carrying mechanism 40 is transversely erected on the rack 10 above the corresponding tray conveying caching mechanism 20, and the tray carrying mechanism 40 moves in the space above the tray feeding and discharging mechanism 30; the material moving manipulator 50 is arranged on the rack 10 on one side of the tray loading and unloading mechanism 30, and the material moving manipulator 50 rotates in a multi-station mode in the space above the rack 10; the feeding platform mechanism 60 is disposed on the working platform 11 of the rack 10 and near one side of the tray feeding and discharging mechanism 30 and the material moving manipulator 50.

As shown in fig. 9 to 12, the tray conveying buffer mechanism 20 includes an organic frame 21, a tray discharging conveying assembly 22 and a tray feeding conveying assembly 23; a tray discharging and conveying assembly 22 and a tray feeding and conveying assembly 23 are arranged on the framework 21 side by side;

the tray discharging and conveying assembly 22 comprises a speed reducing motor 221, a driving wheel 222, a synchronous wheel 223, a tension wheel 224 and a synchronous belt 225; the speed reducing motor 221 is arranged on the middle area of the left outer side of the framework 21, the output end of the speed reducing motor 221 is connected with the driving wheel 222, two groups of synchronous wheels 223 are distributed on the front end and the rear end of the left side above the framework 21 according to four rectangular corners through a mounting seat, two tension wheels 224 are respectively arranged on the two sides above the driving wheel 222 in parallel, and two synchronous belts 225 are respectively longitudinally sleeved on the two groups of synchronous wheels 223, the tension wheels 224 and the driving wheel 222 in parallel according to a synchronous belt track L; the speed reducing motor 221 drives the synchronous belt 225 to move back and forth through the driving wheel 222; the front end and the rear end of the tray discharging and conveying component 22 are respectively provided with a tray discharging position 204 and a tray descending position 203; the structure of the tray feeding and conveying assembly 23 corresponds to that of the tray discharging and conveying assembly 22, and no further description is provided, and accordingly, the tray feeding position 201 and the tray lifting position 202 are respectively provided at the front end and the rear end of the tray feeding and conveying assembly 23.

Further, the tray discharging and conveying assembly 22 further comprises a tray discharging position sensing module 226, and the tray discharging position sensing module 226 is arranged at the front end of the mechanism frame 21 between the two groups of synchronizing wheels 223 and used for sensing that the tray moves to the tray discharging position 204; the tray feeding and conveying assembly 23 further includes a tray lifting position sensing module 236, the tray lifting position sensing module 236 is disposed at the rear end of the mechanism 21 on one side of the tray feeding and conveying assembly 23 and between the two sets of synchronizing wheels 223, or disposed on a protective cover of the tray loading and unloading mechanism 30 corresponding to the lower portion of the tray lifting position, as shown in fig. 14, for sensing that the tray moves to the tray lifting position 202.

Further, the tray discharging and conveying assembly 22 further comprises side baffles 227, and the two side baffles 227 are arranged above the framework 21 in parallel and are respectively positioned at the outer sides of the two synchronous belts 225; the tray feeding and conveying assembly 23 further comprises side baffles, and the two side baffles are arranged above the mechanism frame 21 outside the two synchronous belts of the tray feeding and conveying assembly 23 in parallel and used for protecting the tray.

As shown in fig. 13 to 14, the tray loading and unloading mechanism 30 includes a mechanism fixing plate 31, and a tray loading assembly 32 and a tray unloading assembly 33 which are arranged side by side on both sides of the front surface of the fixing plate 31.

The tray blanking component 33 comprises a Y-axis module 331, a linear guide rail 332 and a tray lifting frame 333; the Y-axis module 331 is vertically disposed on one side of the front side of the mechanism fixing plate 31, the two linear guide rails 332 are disposed on both sides of the Y-axis module 331 in parallel, and the tray lifting frame 333 is fixed on the guide rail slider of the two linear guide rails 332 and connected with the slider of the Y-axis module 331; the Y-axis module 331 is a screw rod type linear module or a synchronous belt linear module, and the Y-axis module 331 drives the tray lifting frame 333 to vertically move up and down along the direction of the linear guide rail 332; the tray loading assembly 32 corresponds to the tray unloading assembly 33 in structure, and no additional description is provided.

Further, the pallet lifting frame 333 comprises a sliding plate 3331 and a tripod 3332; the sliding plate 3331 is erected on the guide rail sliding blocks of the two linear guide rails 332 and connected with the sliding block of the Y-axis module 331; two tripods 3332 are vertically arranged on the front side surface of the sliding plate 3331 in a flush manner, and a tray can be placed above the two tripods 3332.

Further, the tray blanking assembly 33 further comprises a lifting frame induction module 334, and the lifting frame induction module 334 comprises a lifting frame high position inductor 3341, a lifting frame low position inductor 3342, a lifting frame low position limit inductor 3343 and a lifting frame induction sheet 3344; the lifting frame high sensor 3341 is arranged on the front side surface of the mechanism fixing plate 31 and is positioned at the motion track high sensing position of the tray lifting frame 333, the lifting frame low sensor 3342 and the lifting frame low limit sensor 3343 are respectively arranged on the front side surface of the mechanism fixing plate 31 and are positioned at the motion track low and low limit sensing positions of the tray lifting frame 333, the lifting frame sensing piece 3344 is arranged on one side of the sliding plate 3331 corresponding to the lifting frame high sensor 3341 and can vertically sense and cross the lifting frame high sensor 3341, the lifting frame low sensor 3342 and the lifting frame low limit sensor 3343, and the lifting frame high sensor 3341, the lifting frame low sensor 3342 and the lifting frame low limit sensor 3343 are used for sensing the tray lifting frame at the high, low and low limits of the vertical motion track and protecting the tray discharging assembly 33.

Further, as shown in fig. 13 and 7, the tray loading and unloading mechanism 30 further includes a tray loading sensing module 3215 and a tray unloading sensing module 3315, wherein the tray loading sensing module 3215 is disposed on the frame 10 near one side of the tray loading assembly 32, and is configured to sense that the tray loading assembly 32 lifts the tray on the top layer of the stacked tray to a tray loading position; tray unloading response module 3315 sets up in the frame 10 that is close to one side of tray unloading subassembly 33 for the tray material level under is placed to its upper tray of response tray unloading subassembly 33.

As shown in fig. 15 to 18, the tray carrying mechanism 40 includes a gantry 41, an X-axis module 42, a carrying linear guide 43, and a tray grasping assembly 44; the X-axis module 42 is arranged above the portal frame 41, the X-axis module 42 is a screw rod type linear module or a synchronous belt linear module, the two conveying linear guide rails 43 are arranged on the portal frame positioned at two sides of the X-axis module 42 in parallel, the tray grabbing component 44 is arranged on the guide rail slide blocks of the two conveying linear guide rails 43 and connected with the slide blocks of the X-axis module 42, and the X-axis module 42 drives the tray grabbing component 44 to horizontally move along the direction of the conveying linear guide rails 43;

the tray grabbing component 44 comprises a sliding seat 441, a lifting cylinder 442, a lifting slide block 443, an adapter column 444, a bidirectional cylinder 445 and a clamping jaw block 446; the sliding seat 441 is erected on the guide rail sliding blocks of the two conveying linear guide rails 43 and is connected with the sliding block of the X-axis module 42, the lifting cylinder 442 is arranged on one side above the sliding seat 441, the lifting sliding block 443 is arranged on the sliding table of the lifting cylinder 442, the switching column 444 is arranged on the lifting sliding block 443, the bidirectional cylinder 445 is arranged at the bottom end of the switching column 444, and the two clamping jaw blocks 446 are symmetrically arranged at the tail ends of the movable rods on the two sides of the bidirectional cylinder 445; the lifting cylinder 442 drives the jaw block 446 to vertically move up and down, and the bidirectional cylinder 445 drives the jaw block 446 to move in an opening and closing manner.

Further, the tray grasping assembly 44 further includes a first buffer 447 and a second buffer 448, the first buffer 44 is disposed at the upper portion of the lifting cylinder 442, and the second buffer 448 is disposed upside down on the sliding seat 441 and under the lifting cylinder 442 for buffering when the lifting slider 43 vertically moves up and down. Further, the tray carrying mechanism 40 further includes a carrying sensing module 45, and the carrying sensing module 45 includes a carrying left sensor 451, a carrying right sensor 452, a carrying right limit sensor 453 and a carrying sensing piece 454; the carrying left end sensor 451 is arranged on the front side of the portal frame 41 and located at the left end sensing position of the motion track of the tray grabbing assembly 44, the carrying right end sensor 452 is arranged on the front side of the portal frame 41 and located at the right end of the motion track of the tray grabbing assembly 44, the carrying right end limit sensor 453 is arranged on the front side of the portal frame 41 and located at the right end limit sensing position of the tray grabbing assembly 44, and the carrying sensing piece 454 is arranged on the sliding seat 441, corresponds to the carrying left end sensor 451, can horizontally sense and cross the carrying left end sensor 451, the carrying right end sensor 452 and the carrying right end limit sensor 453 and is used for sensing the left end, the right end and the right end limit of the horizontal motion track of the tray grabbing assembly 44 so as to protect the tray carrying mechanism 40. As shown in fig. 19 to 21, the material transferring robot 50 includes a robot 51 and a material sucking jig 52; the manipulator 51 is a four-axis manipulator, the suction jig 52 is arranged at the bottom end of the manipulator 51, and the suction jig 52 comprises a suction nozzle mounting frame 521 and a suction nozzle module 522; the suction nozzle mounting rack 521 is arranged at the bottom end of the manipulator 51, a plurality of suction nozzle modules 522 are vertically arranged on the suction nozzle mounting rack 521 in an adjustable manner, and the suction nozzle modules 522 can be distributed according to the suction positions of products; the manipulator 51 can drive the suction jig 52 to move above the rack 10 at multiple working positions, and the manipulator 51 can drive the suction jig 52 to vertically move up and down and rotate below the suction jig 52.

Further, the material suction jig 52 further comprises a material pressing module 523, the material pressing modules 523 are vertically arranged on the suction nozzle mounting rack 521 in an adjustable distribution manner, the material pressing modules 523 are distributed at positions where the products are positioned by screen printing, and the material pressing modules 523 can be independently controlled; the swaging module 523 comprises a cylinder frame 5231, a pressing cylinder 5232 and a soft pressing pad 5233; the cylinder frame 5231 can be adjustably arranged on the nozzle mounting frame 521, the lower pressing cylinder 5232 is vertically arranged on the cylinder frame 5231, and the soft pressing pad 5233 is arranged at the bottom end of the movable rod of the lower pressing cylinder 5232; after a product is placed on a specified position of a screen printing table surface, the cylinder frame 5231 drives the soft pressure pad 5233 to press down the product positioning hole area, so that the product is sleeved and positioned on the positioning PIN of the screen printing table surface, the product is more accurately positioned on the screen printing table surface due to the fact that the product is flexible and four corners of the surface of the product are warped, the product can be sleeved on the positioning PIN by the material pressing module 523, and the soft pressure pad 5233 is adopted, so that the product is not damaged; the other function of the pressing module 523 can be to start the product shaking function if necessary, when the material moving manipulator 50 drives the material sucking jig 52 to suck the product, the movable rod of the pressing cylinder 5232 of the pressing module 523 located at one corner of the material sucking jig 52 shakes up and down for a preset number of times, so that only 1 product is sucked once, and because the products are stacked in a whole, when the material sucking jig sucks the product, another product may be attached below the product.

As shown in fig. 22 and 23, the feeding platform mechanism 60 includes a fixing plate 61, a first bearing 62, a first guide post 63, a lifting platform 64, a lifting plate 65, a second bearing 66, a second guide post 67, a motor fixing seat 68, a lifting motor 69 and a screw 610; the fixed plate 61 is arranged on the workbench 11 of the frame 10 and is positioned at one side close to the tray loading and unloading mechanism 30 and the material moving manipulator 50, four first bearings 62 are sleeved on four corners of the fixed plate 61, four first guide posts 63 are respectively sleeved in the four first bearings 62, the lifting platform 64 is arranged on top ends of the four first guide posts 63, the lifting plate 65 is arranged on bottom ends of the four first guide posts 63, four second bearings 66 are respectively sleeved on inner sides of the lifting plate 65 corresponding to the four first guide posts 63, four second guide posts 67 are respectively sleeved in the four second bearings 66, top ends of the four second guide posts 67 are fixedly connected below the fixed plate 61, the motor fixing seat 68 is arranged on bottom ends of the four second guide posts 67, the lifting motor 69 is inverted below a middle area of the motor fixing seat 68, one end of the screw rod 610 passes through the motor fixing seat 68 and is connected to an output end of the lifting motor 69 through a coupler, the other end of the screw 610 penetrates through the lifting plate 65 to be connected to the lower part of the fixed plate 61, and a screw nut of the screw 610 is sleeved on the lifting plate; the lifting motor 69 drives the lifting plate 65 to drive the lifting platform 64 to move vertically up and down.

Further, the feeding platform mechanism 60 further includes a platform sensing module 611, and the platform sensing module 611 includes a platform high sensor 6111, a platform low sensor 6112, a platform low limit sensor 6113 and a platform sensing sheet 6114; the platform high-position sensor 6111 is disposed on one side below the fixing plate 61, the platform low-position sensor 6112 and the platform low-position limit sensor 6113 are disposed on one side of the motor fixing seat 68, which is vertically aligned with the platform high-position sensor 6111, the platform sensor 6114 is disposed on one side of the lifting plate 65, which is vertically aligned with the platform high-position sensor 6111, and can vertically sense and cross the platform high-position sensor 6111, the platform low-position sensor 6112 and the platform low-position limit sensor 6113, the upper end and the lower end of the platform sensor 6114 are respectively lengthened, and are respectively provided with high-position and low-position limit sensing lengths, which are used for sensing when the lifting plate 65 is at high-position, low-position and low-position limits of a vertical movement track, so as to protect the loading platform mechanism 60.

Further, as shown in fig. 22 and 7, the feeding platform mechanism 60 further includes a feeding level sensing module 612, and the feeding level sensing module 612 is disposed on the frame 10 located at the periphery of the feeding platform mechanism 60 and is used for sensing that the highest product of the whole stack of products on the lifting platform 64 reaches the product feeding level.

As shown in fig. 1 and fig. 24 to 25, the silk-screen printing feeding and discharging apparatus 1 further includes a cleaning mechanism 70, wherein the cleaning mechanism 70 includes a module fixing frame 71, a linear module 72, a cleaning linear guide rail 73 and a cleaning assembly 74; the module fixing frame 71 is longitudinally arranged on the rack 10 and located on the outer side of the feeding platform mechanism 60, the linear modules 72 are arranged on the module fixing frame 71, the linear modules 72 are screw rod type linear modules or synchronous belt linear modules, the two cleaning linear guide rails 73 are arranged on the module fixing frame 71 in parallel and located on two sides of the linear modules 72, the cleaning assemblies 74 are erected on guide rail sliding blocks of the two cleaning linear guide rails 73 and connected with sliding blocks of the linear modules 72, and the linear modules 72 drive the cleaning assemblies 74 to move back and forth along the direction of the cleaning linear guide rails 73.

Further, the cleaning assembly 74 includes a sliding plate 741, a hanging wall 742, a hanging wall pressure block 743, a swinging block 744, a cleaning roller 745, a limit block 746, and a buffer pin 747; the sliding plate 741 is erected on the guide rail sliding blocks of the two cleaning linear guide rails 73 and connected with the sliding blocks of the linear module 72, one end of the suspended wall 742 is arranged on the sliding plate 741 through the two suspended wall pressing blocks 743, one swinging block 744 is sleeved on the suspended wall 742 on one side close to the module fixing frame 71 through a bearing, the other swinging block 744 is sleeved on the bottom end of the other end of the suspended wall 742 through a bearing, the cleaning roller 745 is arranged on the bottom end of the inner sides of the two swinging blocks 744, the two limiting blocks 746 are sleeved on the suspended wall 742 close to the inner sides of the two swinging blocks 744, the limiting blocks 746 and the swinging blocks 744 are buffered and abutted through the buffer pins 747, and the cleaning roller 745 is prevented from swinging randomly during cleaning.

Further, the cleaning mechanism 70 further includes a cleaning sensing module 75; the cleaning sensing module 75 comprises a cleaning left sensor 751, a cleaning right sensor 752, a cleaning right limit sensor 753, and a cleaning sensing piece 754; cleaning left end inductor 751 sets up on one side of module mount 71, and correspond the left end induction department of cleaning element 74 movement track, cleaning right-hand member inductor 752 and cleaning right-hand member limit inductor 753 set up respectively on module mount 71, and correspond the right-hand member of cleaning element 74 movement track, right-hand member limit induction department, cleaning response piece 754 sets up and can cross cleaning left end inductor 751, cleaning right-hand member inductor 752 and cleaning right-hand member limit inductor 753 in horizontal induction at the sliding plate 741 with cleaning left end inductor 751, be used for cleaning element 74 to respond to when the left end of horizontal movement track, right-hand member limit inductor 753, protection cleaning mechanism 70.

As shown in fig. 2, 7, 26 and 27, the silk-screen printing feeding and discharging apparatus 1 further includes a material arranging mechanism 80, wherein the material arranging mechanism 80 includes a first cylinder 81, a second cylinder 82, a third cylinder 83, a first push plate 84, a second push plate 85 and a third push plate 86; first cylinder 81, second cylinder 82, third cylinder 83 set up respectively and are close to on the workstation 11 of material loading platform mechanism 60 rear side and left and right sides, first push pedal 84, second push pedal 85 and third push pedal 86 set up respectively in the movable rod bottom of first cylinder 81, second cylinder 82, third cylinder 83, after the whole stack product is placed at lift platform 64, first cylinder 81, second cylinder 82, third cylinder 83 drive first push pedal 84 respectively, second push pedal 85 and third push pedal 86 will be whole stack product and concentrate reason material neat.

Further, the silk-screen printing feeding and discharging device 1 further comprises a camera (not shown in the figure), the camera is arranged on a corresponding outer cover rack (not shown in the figure) above the feeding platform mechanism 60, the camera can identify the uppermost product placed on the lifting platform 64, and when the camera visually judges that the position of the product deviates, the material arranging mechanism 80 is started to centralize and arrange a stack of products in order; after the products are tidily arranged, the camera visually judges the positions of the products again, the positions of the products are fed back and fed back to the material moving mechanical arm 50, if the products deviate, the material moving mechanical arm 50 absorbs the products and then performs rotary correction, and then the products are carried to the screen printing table board.

When in use, as shown in fig. 28 and fig. 11, the silk-screen printing feeding and discharging device 1 of the invention is installed at one side of a silk-screen platform 300 of a semi-automatic silk-screen printing machine 2, and in an initial state, a tray lifting frame of a tray feeding component 32 of a tray feeding and discharging mechanism 30 is positioned below a framework 21 of a tray conveying cache mechanism 20, and a tray lifting frame 333 of a tray discharging component 33 is positioned at the highest position; the whole pile of products to be silk-screened is placed on the lifting platform 64 of the feeding platform mechanism 60 in order, and the whole pile of empty trays 100 is placed on the tray feeding position 201 of the tray feeding and conveying assembly 23; starting the present invention, the tray feeding and conveying assembly 23 conveys the whole stack of empty trays 100 to the tray lifting position 202 through the synchronous belt 225, the tray feeding assembly 32 drives the tray lifting frame to lift and lift the whole stack of empty trays 100, when the empty tray 100 at the uppermost layer is lifted to the designated position, the tray feeding sensing module 3215 is adopted to judge whether the designated position is reached, after the designated position is confirmed, the tray carrying mechanism 40 drives the tray gripping assembly 45 to carry the empty tray 100 at the uppermost part of the tray feeding assembly 32 to the tray lifting frame 333 of the tray discharging assembly 33 through the clamping jaw block 455, the tray lifting frame 333 is lowered by one tray height to wait for placing a product, the tray feeding assembly 32 drives the tray lifting frame thereof to lift by one tray height again to wait for carrying the tray again, and the tray gripping assembly 45 returns to the initial position to await standby; after the feeding platform mechanism 60 lifts the uppermost layer of the whole stack of products of the lifting platform 64 to a designated position, the feeding level sensing module 612 is used for judging whether the products reach the designated height, after the products reach the camera visual height, the camera visual sense is used for judging the positions of the products, when the camera visual sense judges the position offset of the products, the material arranging mechanism 80 is started to arrange the products orderly, the camera visually judges the positions of the products again, the positions of the products are fed back to the material moving manipulator 50, the material moving manipulator 50 drives the material suction jig 51 to move to the lifting platform 64 to suck the products and then carry out rotary correction, when needed, the product shaking function can be started, the movable rod of the pressing cylinder 5232 of the pressing module 523 positioned at one corner of the material suction jig 52 shakes up and down for a preset number of times to ensure that only 1 product is sucked at one time, then the products are conveyed to the screen printing table 300, the pressing module 523 on the material suction jig 51 is used for more accurately, meanwhile, the lifting platform 64 jacks the product again to perform subsequent product identification and material arrangement actions, and waits for the material moving manipulator 50 to suck the product again; the semi-automatic screen printing machine 2 carries out screen printing, after the screen printing of the product is finished, the material moving manipulator 50 drives the material suction jig 51 to move to the screen printing table 300 to suck the product and convey the product to the empty tray 100 on the uppermost layer of the tray lifting frame 333 of the tray blanking assembly 33; the tray carrying mechanism 40 drives the tray grabbing component 45 again to carry the empty tray 100 at the top of the tray feeding component 32 to the tray lifting frame 333 of the tray discharging component 33, and the tray lifting frame 333 descends by one tray height again; after the tray above the tray lifting frame 333 of the tray blanking assembly 33 is full, the tray lifting frame 333 continues to descend, the whole stack of trays with the prepared products is placed on the tray descending position 203 of the tray discharging and conveying assembly 22, the tray discharging and conveying assembly 22 drives the synchronous belt 225 to convey the whole stack of trays with the prepared products to the tray discharging position 204, and then the tray lifting frame 333 ascends to the highest position to wait for receiving the tray and the products; when the tray above the tray lifting frame of the tray feeding assembly 32 is transported empty, the tray feeding assembly 32 drives the tray lifting frame to descend below the mechanism frame 21 of the tray conveying caching mechanism 20, and the tray feeding conveying assembly 23 waits for conveying the whole stack of empty trays again; when the product cleaning function needs to be started, after the feeding platform mechanism 60 jacks the uppermost product of the lifting platform 64 to a designated position, the cleaning mechanism 70 is started, the cleaning mechanism 70 drives the cleaning component 74 to be above the product, so that the cleaning roller 745 contacts with the product to roll back over the surface of the product, dust on the surface of the product is taken away, the cleaning component 74 returns to an initial position to wait for a command, and the lifting platform 64 drives the uppermost product to return to the visual height of the camera to perform subsequent actions such as recognizing the product and the like.

After the scheme is adopted, the tray conveying and caching mechanism 20 adopted by the silk-screen printing feeding and discharging device is provided with the tray discharging and conveying assembly 22 and the tray feeding and conveying assembly 23 which are independently controlled, and after the whole stack of empty trays placed on the tray feeding and conveying assembly 23 is transferred to the tray lifting frame of the tray feeding assembly 32, the whole stack of empty trays can be placed on the tray feeding position 201 for standby, so that the waiting time is reduced; the tray loading and unloading mechanism 30 is provided with a tray loading component 32 and a tray unloading component 33 which are independently controlled, both of which are provided with tray lifting frames and can descend below the mechanism frame 21 of the tray conveying and caching mechanism 20, so that the tray loading component 32 can receive the whole stack of empty trays conveyed by the tray feeding and conveying component 23 and send the whole stack of trays with manufactured products back to the tray discharging and conveying component 22, and material transfer is realized; the tray carrying mechanism 40 is provided with a tray grabbing component 45, the tray grabbing component 45 adopts the claw clamping blocks 455 to open and close to grab and place a tray, and the tray is carried from the tray feeding component 32 to the tray discharging component 33; the manipulator 51 of the material moving manipulator 50 adopts a four-shaft manipulator, products can be flexibly conveyed above a lifting platform 64, a screen printing table 300 and a tray blanking assembly 33 in multiple stations, the products identified by a camera are sucked onto the screen printing table 300 from the lifting platform 64, the screen printed products are conveyed into an empty tray of the tray blanking assembly 33 from the screen printing table 300, a suction nozzle module 522 with adjustable position is arranged on a material suction jig 52 of the material moving manipulator 50, the suction nozzle module is distributed and adjusted according to the non-screen printing position of the products, product printing ink is not damaged, a material pressing module 523 with adjustable position can be arranged, a positioning hole is arranged according to the screen printing of the products, the products can be accurately sleeved on a positioning PIN of the screen printing platform, and the material pressing module 523 can also play a function of shaking the products, and only 1 product can be sucked at one time; the feeding platform mechanism 60 is designed with a lifting function, and is used for lifting the uppermost product on the feeding platform mechanism to the visual height of the camera, so that the camera can conveniently recognize the uppermost product; after the cleaning mechanism 70 is started, the cleaning mechanism can be lifted to a specified height to be matched with the cleaning mechanism 70 to realize the product cleaning function; the camera is adopted to identify and read the position of the product and provide the position to the material moving manipulator 50 to complete subsequent actions, and meanwhile, the camera can also be used for monitoring whether the product material is neat, is used up and the like through visual positioning; the material arranging mechanism 80 is used for arranging the push plates by arranging air cylinders on three sides of the material loading platform mechanism 60 to push the push plates, when the materials of the products are not orderly due to some reasons in the product material placing process and the operation process of the machine table, the material arranging mechanism can be started to arrange the materials, so that the manual intervention is reduced, and whether the materials of the products are orderly can be judged by the camera vision; the cleaning assembly 74 of the cleaning mechanism 70 adopts a cleaning roller 745 with viscosity to roll back and forth across the surface of the product to realize the cleaning function, and the front end of the cleaning roller 745 is provided with a floating mechanism to ensure that the cleaning roller 745 can be well attached to the surface of the product; the screen printing feeding and discharging machine can be matched with the existing semi-automatic screen printing machine, the screen printing feeding and discharging machine is transformed into a full-automatic screen printing machine, the existing equipment resources are fully utilized, the automation of the product silk printing process is realized, one person can operate a plurality of devices, and the labor cost is reduced; the tray discharge end of the tray conveying and caching mechanism 20 can be matched with a curing tunnel furnace, so that more intelligent product silk-screen baking assembly line operation is realized.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. The utility model provides a unloading equipment on silk screen printing which characterized in that includes: the automatic feeding device comprises a rack, a tray conveying caching mechanism, a tray loading and unloading mechanism, a tray carrying mechanism, a material moving manipulator and a material loading platform mechanism, wherein the tray conveying caching mechanism is provided with a tray discharging conveying assembly and a tray feeding conveying assembly; a workbench is arranged above one side of the rack, and a tray loading and unloading space is arranged on the other side of the rack; the tray conveying caching mechanism penetrates through a tray feeding and discharging space of the rack, the tray discharging conveying assembly is provided with a tray discharging position and a tray descending position, and the tray feeding conveying assembly is provided with a tray feeding position and a tray jacking position; the tray feeding and discharging mechanism can be movably arranged on one side of the rack, which is correspondingly provided with a tray feeding and discharging space, and can move up and down relative to the tray conveying caching mechanism; the tray carrying mechanism is transversely erected on the rack above the corresponding tray conveying caching mechanism, moves in the space above the tray feeding and discharging mechanism, and comprises a portal frame, an X-axis module, a carrying linear guide rail and a tray grabbing assembly; the X-axis module is arranged above the portal frame, the two conveying linear guide rails are arranged on the portal frame on two sides of the X-axis module in parallel, the tray grabbing component is erected on the guide rail sliding blocks of the two conveying linear guide rails and connected with the sliding blocks of the X-axis module, and the X-axis module drives the tray grabbing component to horizontally move along the direction of the conveying linear guide rails; the material moving manipulator is arranged on the rack on one side of the tray feeding and discharging mechanism, the material moving manipulator rotates and moves in a multi-station mode in the space above the rack, and the material moving manipulator comprises a manipulator and a material sucking jig; the manipulator is a four-axis manipulator, the material suction jig is arranged at the bottom end of the manipulator and comprises a suction nozzle mounting frame and a suction nozzle module; the suction nozzle mounting rack is arranged at the bottom end of the manipulator, and the plurality of suction nozzle modules are vertically arranged on the suction nozzle mounting rack in an adjustable manner; the feeding platform mechanism is arranged on a workbench of the rack and is close to one side of the tray feeding and discharging mechanism and the material moving manipulator.

2. The silk-screen printing feeding and discharging device as claimed in claim 1, wherein: the tray conveying and caching mechanism further comprises a mechanical framework; a tray discharging and conveying assembly and a tray feeding and conveying assembly are arranged on the framework side by side; the tray discharging and conveying assembly comprises a speed reducing motor, a driving wheel, a synchronous wheel, a tension wheel and a synchronous belt; the speed reducing motor is arranged on the middle area of the left outer side of the machine frame, the output end of the speed reducing motor is connected with a driving wheel, two groups of synchronous wheels are distributed on the front end and the rear end of the left side above the machine frame according to the four corners of a rectangle through a mounting seat, two tension wheels are respectively arranged on the two sides above the driving wheel in parallel, and two synchronous belts are respectively longitudinally sleeved on the two groups of synchronous wheels, the tension wheels and the driving wheel in parallel according to the tracks of the synchronous belts; the speed reducing motor drives the synchronous belt to move back and forth through the driving wheel; the structure of the tray feeding conveying assembly is the same as or corresponding to that of the tray discharging conveying assembly; the tray discharging and conveying assembly also comprises a tray discharging and level sensing module, and the tray discharging and level sensing module is arranged on a mechanism frame positioned below the tray discharging and level and is used for sensing that the tray moves to the tray discharging and level; the tray feeding and conveying assembly further comprises a tray jacking position sensing module, and the tray jacking position sensing module is arranged on a machine frame below the tray jacking position and used for sensing that the tray moves to the tray jacking position.

3. The silk-screen printing feeding and discharging device as claimed in claim 1, wherein: the tray blanking assembly comprises a Y-axis module, a linear guide rail and a tray lifting frame; the Y-axis module is vertically arranged on one side of the front side face of the mechanism fixing plate, the two linear guide rails are arranged on two sides of the Y-axis module in parallel, the tray lifting frame is fixed on the guide rail sliding blocks of the two linear guide rails and connected with the sliding blocks of the Y-axis module, and the Y-axis module drives the tray lifting frame to vertically move up and down along the direction of the linear guide rails; the tray lifting frame comprises a sliding plate and a tripod, and the sliding plate is erected on the guide rail sliding blocks of the two linear guide rails and is connected with the sliding block of the Y-axis module; the two tripods are arranged on the front side surface of the sliding plate in parallel and vertically, and a tray is arranged above the two tripods; the structure of the tray feeding assembly is the same as or corresponding to that of the tray blanking assembly.

4. The silk-screen printing feeding and discharging device as claimed in claim 3, wherein: the tray loading and unloading mechanism also comprises a tray loading induction module and a tray unloading induction module, wherein the tray loading induction module is arranged on the rack close to one side of the tray loading assembly and is used for inducing the tray loading assembly to lift the tray on the uppermost layer of the stacked tray to a tray loading position; the tray unloading response module sets up in the frame that is close to tray unloading subassembly one side for the material level under the tray is placed to its tray of response tray unloading subassembly.

5. The silk-screen printing feeding and discharging device as claimed in claim 1, wherein: the tray grabbing component comprises a sliding seat, a lifting cylinder, a lifting slide block, a switching column, a bidirectional cylinder and a clamping claw block; the two clamping jaw blocks are symmetrically arranged at the tail ends of movable rods at two sides of the two-way cylinder; the lifting cylinder drives the clamping jaw block to vertically move up and down, and the bidirectional cylinder drives the clamping jaw block to open and close left and right.

6. The silk-screen printing feeding and discharging device as claimed in claim 1, wherein: the feeding platform mechanism comprises a fixing plate, a first bearing, a first guide pillar, a lifting platform, a lifting plate, a second bearing, a second guide pillar, a motor fixing seat, a lifting motor and a screw rod; the fixed plate is arranged on a workbench of the frame and is positioned at one side close to the tray feeding and discharging mechanism and the material moving manipulator, four first bearings are sleeved on four corners of the fixed plate, four first guide pillars are respectively sleeved in the four first bearings, the lifting platform is arranged on the top ends of the four first guide pillars, the lifting plate is arranged on the bottom ends of the four first guide pillars, four second bearings are respectively sleeved on the inner sides of the four first guide pillars corresponding to the lifting plate, four second guide pillars are respectively sleeved in the four second bearings, the top ends of the four second guide pillars are fixedly connected below the fixed plate, the motor fixing seat is arranged on the bottom ends of the four second guide pillars, the lifting motor is inversely arranged below the middle area of the motor fixing seat, one end of the screw rod penetrates through the motor fixing seat and is connected to the output end of the lifting motor through a coupler, and the other end of the screw rod penetrates through the lifting plate and is connected below the, a screw nut of the screw rod is sleeved on the lifting plate; the lifting plate is driven by the lifting motor to drive the lifting platform to vertically move up and down.

7. The silk-screen printing feeding and discharging device as claimed in claim 6, wherein: the feeding platform mechanism also comprises a platform induction module; the platform sensing module comprises a platform high-position sensor, a platform low-position limit sensor and a platform sensing piece; the platform high-position sensor is arranged on one side below the fixed plate, the platform low-position sensor and the platform low-position limit sensor are respectively arranged on one side, vertically aligned with the platform high-position sensor, above and below the motor fixed seat, the platform sensing piece is arranged on one side, vertically aligned with the platform high-position sensor, of the lifting plate and can vertically sense and cross the platform high-position sensor, the platform low-position sensor and the platform low-position limit sensor, the upper end and the lower end of the platform sensing piece are respectively lengthened and respectively provided with high-position limit sensing length and low-position limit sensing length, and the platform sensing piece is used for sensing when the lifting plate is at high-position, low-position and low-position limits of a vertical movement track to protect a loading platform mechanism; the feeding platform mechanism further comprises a feeding level sensing module, and the feeding level sensing module is arranged on the frame located on the periphery of the feeding platform mechanism and used for sensing the highest-layer product of the whole stack of products on the lifting platform to reach the feeding level of the products.

8. The silk-screen printing feeding and discharging device as claimed in claim 1, wherein: the cleaning mechanism comprises a module fixing frame, a linear module, a cleaning linear guide rail and a cleaning assembly; the module fixing frame is longitudinally arranged on the machine frame outside the feeding platform mechanism, the linear module is arranged on the module fixing frame, the two cleaning linear guide rails are arranged on the module fixing frames on two sides of the linear module in parallel, the cleaning assembly is erected on the guide rail sliding blocks of the two cleaning linear guide rails and connected with the sliding blocks of the linear module, and the linear module drives the cleaning assembly to move back and forth along the direction of the cleaning linear guide rails.

9. The silk-screen printing feeding and discharging device as claimed in claim 8, wherein: the cleaning component comprises a sliding plate, a suspension wall pressing block, a swinging block, a cleaning roller, a limiting block and a buffering pin; the sliding plate is erected on the guide rail sliding blocks of the two cleaning linear guide rails and connected with the sliding blocks of the linear module, one end of the suspension wall is arranged on the sliding plate through two suspension wall pressing blocks, one swinging block is arranged on the suspension wall close to one side of the module fixing frame through a bearing sleeve, the other swinging block is arranged on the bottom end of the other end of the suspension wall through a bearing sleeve, the cleaning idler wheels are arranged on the bottom ends of the inner sides of the two swinging blocks, the two limiting blocks are arranged on the suspension wall close to the inner sides of the two swinging blocks in a sleeved mode, and the limiting blocks and the swinging blocks are buffered and abutted through the buffer pins.

10. The silk-screen printing feeding and discharging device as claimed in claim 1, wherein: the material arranging mechanism comprises a first cylinder, a second cylinder, a third cylinder, a first push plate, a second push plate, a third push plate and a camera; the first cylinder, the second cylinder and the third cylinder are respectively arranged on the workbench close to the rear side and the left side and the right side of the feeding platform mechanism, the first push plate, the second push plate and the third push plate are respectively arranged at the bottom ends of movable rods of the first cylinder, the second cylinder and the third cylinder, and after a whole stack of products is placed on the lifting platform, the first cylinder, the second cylinder and the third cylinder respectively drive the first push plate, the second push plate and the third push plate to centralize and tidy the whole stack of products; the camera is arranged on the corresponding rack above the feeding platform mechanism.

11. The silk-screen printing feeding and discharging device as claimed in claim 1, wherein: the automatic feeding device is characterized by further comprising a camera, wherein the camera is arranged above the feeding platform mechanism and used for visually recognizing the position of the uppermost product on the feeding platform mechanism.

12. The screen printing feeding and discharging device as claimed in any one of claims 1 to 11, wherein: the suction jig also comprises pressing modules, the plurality of pressing modules are vertically arranged on the suction nozzle mounting frame in an adjustable distribution manner, and each pressing module comprises a cylinder frame, a lower pressing cylinder and a soft pressing pad; the cylinder frame is adjustably arranged on the suction nozzle mounting frame, the lower pressing cylinder is vertically arranged on the cylinder frame, and the soft pressing pad is arranged at the bottom end of the movable rod of the lower pressing cylinder; and after the product is placed at the designated position of the screen printing table surface, the cylinder frame drives the soft pressure pad to press the product positioning hole area, so that the product is sleeved and positioned on the positioning PIN of the screen printing table surface.