Automatic screen printing plate sizing device

Abstract

The utility model relates to the technical field of screen printing plate coating equipment, in particular to an automatic screen printing plate sizing device which comprises a machine frame, a screen printing plate fixing mechanism, a coating mechanism and a controller, the controller is arranged on the machine frame, the screen printing plate fixing mechanism and the coating mechanism are arranged in the machine frame, and the screen printing plate fixing mechanism comprises a first fixing set and a second fixing set. The first fixing set is of a liftable structure, the second fixing set is fixed to the rack, the first fixing set and the second fixing set are each provided with a clamping block capable of automatically clamping, the clamping blocks are controlled by a two-way lead screw motor component to move, and a height induction sensor is further arranged at the bottom of the first fixing set so as to automatically ascend and descend to the proper height to clamp a screen printing plate. The self-locking component is arranged at the position, used for installing the coating groove, of the coating mechanism, when coating grooves of different sizes are replaced, locking or unlocking can be rapidly completed, manual disassembly and assembly are not needed, use is more convenient, and efficiency is higher.

Description

Technical Field

[0001] This utility model belongs to the technical field of screen coating equipment, specifically an automatic screen coating device. Background Technology

[0002] In existing technologies, automatic screen printing sizing devices suffer from cumbersome operation and low efficiency. Before placing the screen into the frame for clamping and fixing, the operator needs to manually adjust the spacing between the clamping components inside the frame to accommodate the screen size. After the screen is placed, the height of the upper clamping components needs to be further adjusted to achieve effective fixing. This adjustment process relies on manual intervention, making the operation cumbersome.

[0003] Coating blades are typically installed using bolts or similar fastening methods. When replacing them, operators must loosen the bolts to remove the old blade, then install the new blade and retighten the bolts. This disassembly and replacement process is time-consuming, impacting equipment operating efficiency and production cycle time.

[0004] Therefore, there is a need for an automatic screen printing sizing device that can be used quickly and conveniently. Utility Model Content

[0005] Based on this, this solution provides an automatic screen coating device. The screen fixing mechanism can automatically sense the size of the screen and clamp and fix it. The coating blade can achieve self-locking and separation, which makes it convenient for operators to replace the coating blade. The equipment has higher efficiency and is easier to use.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] An automatic screen coating device includes: a frame, a screen fixing mechanism, a coating mechanism, and a controller. The controller is mounted on the frame, and the screen fixing mechanism and the coating mechanism are located inside the frame. The screen fixing mechanism includes a first fixing group and a second fixing group. The first fixing group has a liftable structure, and the second fixing group is arranged opposite to the first fixing group and fixedly installed on the frame. Both the first fixing group and the second fixing group are equipped with clamping blocks that can be automatically clamped. The clamping blocks are controlled to move by a bidirectional screw motor component. A height sensor is also provided at the bottom of the first fixing group to automatically lift and lower the screen to a suitable height for clamping. The coating mechanism has a self-locking component at the position for installing the coating tank.

[0008] Optionally, in one embodiment of the present invention, the first fixed group is provided with a first crossbeam and a lifting assembly. The lifting assembly includes a lifting screw, a guide rod, and a lifting motor. The guide rod and the screw are slidably connected to both ends of the crossbeam, and the lifting motor is drivenly connected to the screw.

[0009] Optionally, in one embodiment of the present invention, the second fixing group is provided with a second crossbeam, the second crossbeam is fixedly connected to the frame, and the second crossbeam has the same structure as the first crossbeam.

[0010] Optionally, in one embodiment of the present invention, the first crossbeam is provided with an adjusting screw and an adjusting motor, wherein the adjusting screw is divided at the center and the threads on both sides are arranged in opposite directions.

[0011] Optionally, in one embodiment of the present invention, the clamping block includes a fixed clamping block, a telescopic cylinder, and a movable clamping block. The movable clamping block is installed on the telescopic end of the telescopic cylinder, and the fixed clamping block and the movable clamping block are arranged opposite each other.

[0012] Optionally, in one embodiment of the present invention, the coating mechanism includes a main frame, a movable frame, a coating blade, and a lifting component. The two sides of the main frame are respectively connected to the lifting component, and the two sides of the main frame are also slidably connected to guide rods to ensure smooth lifting. The lifting component is a synchronous belt structure. The movable frame is installed inside the main frame, and the coating blade is installed on the movable frame. The movable frame includes two supports arranged symmetrically front and rear. The two sides of the supports are respectively connected to a rotation drive and a forward / backward drive to make the supports move closer to / away from the screen surface.

[0013] Optionally, in one embodiment of the present invention, a positioning opening is provided in the middle of the movable frame, and a positioning groove is also provided on the movable frame.

[0014] Optionally, in one embodiment of the present invention, a positioning block is provided in the middle of the back side of the coating blade, and a fixing part is provided on both sides of the back side of the coating blade, and the fixing part is provided with a fixing hole.

[0015] Optionally, in one embodiment of the present invention, the self-locking component includes a self-locking drive and a locking rod, wherein the locking rod is installed at the output end of the self-locking drive.

[0016] Compared with the prior art, the automatic screen printing sizing device provided by this utility model has the following characteristics:

[0017] The device is equipped with a height-adjustable first fixing group that can automatically detect the position of the upper edge of the screen and raise or lower it to the optimal clamping height. The adjusting screw, the adjusting motor 302 driving the clamping block 301, and the sensor on the clamping block 301 enable automatic identification, positioning, and clamping of the upper and lower edges of the screen in the horizontal direction.

[0018] When the screen size for coating is small, a single person can complete the entire process of screen mounting, fixing, and coating preparation. The foot pedal controller allows the operator to control key clamping and self-locking actions with their feet while holding the screen steady with both hands, improving operational convenience and safety.

[0019] The groove at the top of the second crossbeam provides a temporary placement point for the lower edge of the screen, eliminating the need for manual support of the screen throughout the process and waiting for automatic clamping, thus reducing the labor intensity and time during the loading stage.

[0020] The positioning block and positioning port enable rapid centering positioning, while the positioning groove, proximity sensor, and self-locking components allow for one-click locking and unlocking of the coating blade. This eliminates the need for traditional screw tightening, allowing for faster blade replacement, reduced downtime, and improved equipment utilization. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0023] Figure 2 This is a detailed schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0024] Figure 3 This is a schematic diagram of the inner side of the first crossbeam in Embodiment 1 of this utility model;

[0025] Figure 4 This is a schematic diagram of the back of the coating blade in Embodiment 1 of this utility model;

[0026] Figure 5 This is a schematic diagram of the movable frame, rotation drive, and forward / backward drive of Embodiment 1 of this utility model.

[0027] Reference numerals: Frame 1, Controller 101, Foot pedal controller 102, Main frame 2, First crossbeam 3, Clamping block 301, Adjusting motor 302, Lifting sensor 303, Lifting screw 304, Lifting motor 305, Second crossbeam 4, Movable frame 5, Rotary drive 501, Mounting plate 5011, Forward and backward drive 5012, Positioning port 502, Positioning groove 503, Insertion hole 5031, Locking rod 5032, Self-locking drive 5033, Forward and backward drive 504, Synchronous belt 505, Servo motor 507, Guide rod 508, Coating blade 6, Positioning block 601, Fixing part 602, Fixing hole 6021. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0029] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0030] Example 1

[0031] Because existing automatic screen printing sizing devices are inconvenient to use, a more user-friendly automatic screen printing sizing device has been designed to improve operational convenience. The specific solution is as follows:

[0032] like Figure 1-4 As shown, an automatic screen coating device includes: a frame 1, a screen fixing mechanism, a coating mechanism, and a controller 101. The controller 101 is mounted on the frame 1. The screen fixing mechanism and the coating mechanism are located inside the frame 1. The screen fixing mechanism includes a first fixing group and a second fixing group. The first fixing group adopts a liftable structure. The second fixing group is arranged opposite to the first fixing group and is fixedly installed on the frame 1. Both the first fixing group and the second fixing group are provided with clamping blocks 301 that can be automatically clamped. The clamping blocks 301 are controlled to move by a bidirectional screw motor component. A height sensor is also provided at the bottom of the first fixing group to automatically lift and lower to a suitable height to clamp the screen. The coating mechanism is provided with a self-locking component at the position for installing the coating tank.

[0033] The front of the frame 1 can also be equipped with a foot pedal controller 102, which is used to control the movement of the clamping block 301 and the self-locking component. When the screen size is not very large, a single person can complete the operation.

[0034] In this embodiment, the first fixing group and the second fixing group are respectively provided with two clamping blocks 301, and each clamping block 301 is equipped with a sensor for sensing the edge of the screen.

[0035] The first fixed assembly includes a first crossbeam 3 and a lifting assembly. The lifting assembly includes a lifting screw 304, a guide rod 508, and a lifting motor 305. The guide rod 508 and the lifting screw 304 are slidably connected to both ends of the crossbeam, and the lifting motor 305 is drivenly connected to the lifting screw 304. The first crossbeam 3 slides up and down along the screw axis by the forward and reverse rotation of the lifting motor 305. The two ends of the screw and the guide rod 508 are respectively located at the two ends of the mounting slots on both sides of the frame 1. A screen sensor is provided at the bottom of the first crossbeam 3 to sense the screen and control the descent height of the first crossbeam 3.

[0036] The second fixed group is provided with a second crossbeam 4, which is fixedly connected to the frame 1. The second crossbeam 4 has the same structure as the first crossbeam 3. The top of the second crossbeam 4 is also provided with a groove for temporary placement. When the screen is not yet clamped and fixed, and manual temporary stabilization of the screen is required, it can serve as a temporary placement for the screen. In this embodiment, a sensor is also provided in the groove for sensing the edge of the screen.

[0037] The first crossbeam 3 is equipped with an adjusting screw and an adjusting motor 302. The adjusting screw is divided at the center, and the threads on both sides are set in opposite directions. By adjusting the forward and reverse rotation of the adjusting motor 302, the clamping block 301 can be made to move relative to or away from each other.

[0038] The clamping block 301 includes a fixed clamping block 301, a telescopic cylinder, and a movable clamping block 301. The movable clamping block 301 is installed on the telescopic end of the telescopic cylinder. The fixed clamping block 301 and the movable clamping block 301 are arranged opposite each other. The distance between the movable clamping block 301 and the fixed clamping block 301 is used to place the frame of the screen.

[0039] The coating mechanism includes a main frame 2, a movable frame 5, a coating blade 6, and a lifting component. The two sides of the main frame 2 are connected to the lifting component, and guide rods are slidably connected to both sides of the main frame 2 to ensure smooth lifting. The lifting component is a synchronous belt 505 structure. Specifically, a synchronous belt 505 is connected to each side of the main frame 2. The synchronous belt 505 is driven by a servo motor 507 to achieve forward and reverse rotation, thereby raising / lowering the main frame 2. The movable frame 5 is installed inside the main frame 2, and the coating blade 6 is installed on the movable frame 5. The movable frame 5 includes two symmetrically arranged supports. A rotary drive 501 and a forward / backward drive 504 are connected to each side of the supports to move the supports closer to / away from the screen surface. In this embodiment, the rotary drive 501 is a telescopic cylinder, and the two ends of the movable frame 5 are equipped with mounting... Mounting block 5011, the two ends of movable frame 5 are screwed onto mounting block 5011, rotary drive 501 is mounted on mounting block 5011 and its telescopic end is rotatably connected to movable frame 5. When rotary drive 501 extends / retracts, movable frame 5 can rotate clockwise / counterclockwise within a certain angle range to achieve the tilting or return of coating blade 6 to its original state. The tilting of coating blade 6 can make the internal slurry flow downward, so that coating blade 6 can coat the screen surface. Advance and retraction drive 504 adopts advance and retraction screw and servo motor 507. Advance and retraction screw also adopts reverse double thread screw. The back of mounting block 5011 is movably connected to advance and retraction screw. Servo motor 507 is mounted on main frame 2 and its output end is connected to advance and retraction screw. By forward and reverse rotation of servo motor 507, the movable frames 5 on the front and rear sides move closer / away.

[0040] The movable frame 5 has a positioning port 502 in the middle and a positioning groove 503 on it. Specifically, the positioning port 502 and the positioning groove 503 are non-through structures, so that the coating blade 6 will not fall off the movable frame 5 when it is not in use or locked, which facilitates the operator to replace the coating blade 6.

[0041] A positioning block 601 is provided in the middle of the back of the coating blade 6, and a fixing part 602 is provided on both sides of the back of the coating blade 6. The fixing part 602 has a fixing hole 6021.

[0042] When installing the coating blade 6, the positioning block 601 can be quickly inserted into the positioning port 502 to ensure that the coating blade 6 is installed in the center and that the fixing parts 602 on both sides fall into the positioning groove 503. In this embodiment, a proximity sensor is provided in the positioning groove 503. After the fixing part 602 falls into the positioning groove 503, the self-locking component is controlled to lock according to the sensing signal. A socket 5031 corresponding to the fixing hole 6021 is provided on one side of the fixing groove.

[0043] The self-locking component includes a self-locking drive 5033 and a locking rod 5032. The locking rod 5032 is installed at the output end of the self-locking drive 5033. In this embodiment, the self-locking drive 5033 is a telescopic cylinder. The cross-section of the locking rod 5032 is a cross-shaped structure, and the fixing hole 6021 is a cross-shaped hole. When locking, the locking rod 5032 is inserted into the fixing hole 6021 to complete the locking. When separation is required, the locking rod 5032 is disengaged from the fixing hole 6021, and the coating blade 6 can be removed.

[0044] Working principle:

[0045] Without additional auxiliary equipment, the operator moves the screen to be coated onto the frame 1, placing the lower edge of the screen in the groove of the second crossbeam 4. After the sensor detects that the screen is placed in the groove, the crossbeam of the first fixing group descends to the top of the screen and stops. Then, the clamping blocks 301 of the first and second fixing groups are driven by the adjusting motor 302 to move the adjusting screw, so that the two clamping blocks 301 of the same fixing group move closer to each other. After the sensor on the clamping block 301 detects the screen edge, it continues to move a certain distance after a set time, and then stops the adjusting motor 302, so that the clamping block 301 stops moving and clamps and fixes the screen edge.

[0046] Then, the coating blade 6, which has been placed to one side, is installed. The positioning block 601 of the coating blade 6 is inserted into the positioning port 502. After the proximity sensor senses the fixing part 602, the self-locking drive 5033 causes the locking rod 5032 to be inserted into the fixing hole 6021, thus completing the locking of the coating blade 6.

[0047] When the coating blade 6 needs to be disassembled, the self-locking component can be controlled by the controller 101 to disengage the locking rod 5032 from the fixing hole 6021, and the coating blade 6 can be removed from the top. There is no need for the operator to loosen multiple screws, etc., so as to achieve quick replacement of the coating blade 6.

[0048] After the screen is clamped and fixed, the forward and backward drive 504 moves the coating blade 6 closer to the screen surface. The rotation drive 501 tilts the coating blade 6, allowing the internal slurry to flow out. Then, the lifting component moves the main frame 2 up, which in turn moves the coating blade 6 up to perform coating operations on the screen surface. After one coat, the coating blade 6 returns to its original position, and the main frame 2 lowers back to its original position. The coating operation is then repeated to complete the coating process.

[0049] After coating is completed, the main frame 2 and coating blade 6 are returned to their original positions. The operator holds the screen and opens the clamp 301 to release the clamping state. The screen can then be removed and transferred to the drying equipment.

[0050] The automatic sizing device in this solution has a first fixed group that can be raised and lowered. Combined with the sensor on the first crossbeam 3, it can automatically detect the position of the upper edge of the screen and raise and lower it to the optimal clamping height. By integrating the adjusting screw and the clamping block 301 driven by the adjusting motor 302, and the sensor on the clamping block 301, automatic identification, positioning, and clamping of the screen position are achieved.

[0051] When the screen size is small, a single person can complete the entire process of screen mounting, fixing, and coating preparation. The foot controller 102 allows the operator to control key clamping and self-locking actions with their feet while holding the screen steady with both hands, improving operational convenience and safety.

[0052] The groove at the top of the second crossbeam 4 provides a temporary placement point for the lower edge of the screen, eliminating the need for manual support of the screen throughout the process and waiting for automatic clamping, thus reducing the labor intensity and time during the loading stage.

[0053] The positioning block 601 and positioning port 502 of the coating blade 6 enable rapid centering positioning. The positioning groove 503, proximity sensor, and self-locking component enable one-click locking and unlocking of the coating blade 6. This eliminates the need for traditional screw tightening, allowing for faster blade replacement, reduced downtime, and improved equipment utilization.

[0054] Example 2

[0055] In this embodiment, the structure of the automatic sizing device is basically the same as that in embodiment 1. The difference is that the automatic sizing device for screen printing is also equipped with a robotic arm for feeding. After the coating blade 6 is replaced, the robotic arm can place the screens one by one on the frame 1 for coating operations and remove the screens after coating, thereby further improving the degree of automation and production efficiency.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic sizing device for screen printing, characterized in that, include: The system includes a frame, a screen fixing mechanism, a coating mechanism, and a controller. The controller is mounted on the frame, and the screen fixing mechanism and coating mechanism are located inside the frame. The screen fixing mechanism includes a first fixing group and a second fixing group. The first fixing group has a liftable structure, and the second fixing group is arranged opposite to the first fixing group and fixedly installed on the frame. Both the first fixing group and the second fixing group are equipped with clamping blocks that can automatically grip the screen. The clamping blocks are controlled to move by a bidirectional screw motor component. A height sensor is also provided at the bottom of the first fixing group to automatically raise and lower the screen to a suitable height for gripping. The coating mechanism has a self-locking component at the position for installing the coating tank.

2. The automatic screen printing sizing device according to claim 1, characterized in that: The first fixed assembly is provided with a first crossbeam and a lifting assembly. The lifting assembly includes a lifting screw, a guide rod and a lifting motor. The guide rod and the screw are slidably connected to both ends of the crossbeam, and the lifting motor is drivenly connected to the screw.

3. The automatic screen printing sizing device according to claim 1, characterized in that: The second fixed assembly is provided with a second crossbeam, which is fixedly connected to the frame. The second crossbeam has the same structure as the first crossbeam.

4. The automatic sizing device for screen printing according to claim 2, characterized in that: The first crossbeam is equipped with an adjusting screw and an adjusting motor. The adjusting screw is divided at the center, and the threads on both sides are arranged in opposite directions.

5. The automatic screen printing sizing device according to claim 1, characterized in that: The clamping block includes a fixed clamping block, a telescopic cylinder, and a movable clamping block. The movable clamping block is installed on the telescopic end of the telescopic cylinder, and the fixed clamping block and the movable clamping block are arranged opposite each other.

6. The automatic sizing device for screen printing according to claim 1, characterized in that: The coating mechanism includes a main frame, a movable frame, a coating blade, and a lifting component. The two sides of the main frame are connected to the lifting component, and guide rods are also slidably connected to the two sides of the main frame to ensure smooth lifting. The lifting component is a synchronous belt structure. The movable frame is installed inside the main frame, and the coating blade is installed on the movable frame. The movable frame includes two supports arranged symmetrically front and rear. The two sides of the supports are connected to a rotation drive and a forward / backward drive to move the supports closer to / away from the screen surface.

7. The automatic sizing device for screen printing according to claim 6, characterized in that: The movable frame has a positioning opening in the middle and a positioning groove.

8. The automatic sizing device for screen printing according to claim 6, characterized in that: The coating blade has a positioning block in the middle of its back side, and a fixing part is provided on both sides of the back side of the coating blade, with fixing holes provided in the fixing part.

9. The automatic sizing device for screen printing according to claim 1, characterized in that: The self-locking component includes a self-locking drive and a locking rod, with the locking rod installed at the output end of the self-locking drive.

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