Screen plate making screen angle measuring device and method

Abstract

The present invention belongs to the field of screen printing technology, and specifically relates to a screen angle measuring device and method for screen plate making, which includes a registration table and a moving component, an imaging monitoring component is installed on the registration table, the moving component includes a rotating table and a lifting transmission box, the lifting transmission box is connected to the adjustment component through a connecting frame, and the adjustment component includes a base frame, a scissor joint, a fixed frame and a lower fixed frame. In the present invention, the base frame drives the lower fixed frame to contact the four corners of the screen to be registered, so that the lower fixed frame presses the four corners of the screen to be registered, and the frame of the screen to be registered is flattened as much as possible, and then the screen to be registered and the screen to be registered are clamped by the scissor joint at the same time, so that the screen to be registered and the screen to be registered can be quickly aligned, and at the same time, the frame of the screen to be registered is attached to the registration table, so that the screen to be registered is as flush with the registration table as possible, so as to avoid the deformation of the frame of the screen to be registered due to long-term use, which may cause errors in the equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of screen printing, and in particular relates to a device and a method for measuring the angle of a screen printing plate. Background Art

[0002] Screen printing is to weave fiber threads into a mesh and stretch it tightly on the screen frame, and then use photosensitive materials to make a screen through exposure. Only the exposed pattern part on the screen is left to allow the printing material to pass through, while the mesh holes of the non-exposed pattern part are blocked and the printing material cannot pass through. During the screen printing process, the scraper moves forward to allow the printing material to pass through the opening part of the screen and adhere to the surface of the substrate to form the required pattern. The screen printing process uses dots to represent the level and color of the pattern. Screen collision is prone to occur in the screen printing process. Screen collision refers to the undesirable pattern caused by abnormal overlapping and conflicting dots. It is mainly related to the following four angles: the screen frame placement angle, the screen itself relaxation angle, the angle between the screen and the screen frame, and the dot angle.

[0003] In the screen-making process, the above four angles of the screen must be determined before using photosensitive materials for exposure and plate-making, otherwise the finished screen will collide with the screen in the back-end printing process. In the screen printing process, although the process angle has been confirmed in the front-end plate-making process, the multiple uses of the screen will change the relaxation angle of the screen itself; the inconsistent placement of the screen frame each time will change the placement angle of the screen frame, and the process angle must be confirmed again, otherwise there will be batch collision problems. The screen is damaged due to multiple uses of the screen, and it is impossible to manually calibrate the screen frame placement. In addition, the existing screen calibration plate can only be used to calibrate the screen through operator experience control and repeated measurement and calibration, which has low operating efficiency, low plate alignment accuracy, and cumbersome operation. Summary of the invention

[0004] The purpose of the present invention is to provide a screen angle measuring device and method for screen making to solve the technical problems in the prior art in view of the shortcomings of the prior art.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A screen angle measuring device for screen plate making comprises a registration table and a moving component, wherein an imaging monitoring component is installed on the registration table, a silk plate to be registered is placed on the registration table, the moving component comprises a rotating table and a lifting transmission box, the rotating table is connected to the lifting transmission box, the lifting transmission box is connected to an adjusting component via a connecting frame, the adjusting component comprises a base frame and a scissor joint, an electric pull rod is installed on the base frame, an output end of the electric pull rod is connected to the scissor joint, an upper fixed frame and a lower fixed frame are horizontally symmetrically installed at one end of the scissor joint away from the electric pull rod, the upper fixed frame and the lower fixed frame are respectively in contact with the four corners of the registration silk screen and the silk plate to be registered.

[0007] As a further optimization or improvement of the present solution, the adjustment assembly also includes a pull plate, the pull plate is slidably installed on the base frame, a U-shaped plate is installed on the base frame, an electric pull rod is fixedly installed on the U-shaped plate, the input end of the electric pull rod is connected to the pull plate, and the pull plate is connected to one end of the scissors joint.

[0008] As a further optimization or improvement of the present solution, a reinforcement shaft is connected to the scissor joint, connecting columns are installed on both sides of the reinforcement shaft, connecting blocks are fixedly installed on the connecting columns, a lower laser emitter that rotates upward and an upper laser emitter that rotates downward are installed on the connecting block, and the lower laser emitter and the upper laser emitter are respectively directed to the screen to be aligned and the screen to be aligned, and micro cylinders are installed on both sides of the laser ports of the lower laser emitter and the upper laser emitter.

[0009] As a further optimization or improvement of the present solution, a sliding rod is slidably installed inside the connecting block, one end of the sliding rod is connected to the pull plate, and the other end of the sliding rod is connected to the pull block. The pull block is laterally trapezoidal, and the upper and lower ends of the pull block are respectively abutted against the upper laser emitter and the lower laser emitter. A visual sensor is installed inside the pull block, and micro cylinders are respectively installed on the upper fixed frame and the lower fixed frame. The input end of the micro cylinder is connected to a pad block, and the micro cylinder is connected to the visual sensor.

[0010] As a further optimization or improvement of this solution, the imaging monitoring component includes a parallel floodlight and a guide rail, a sliding frame is installed on the plate-aligning table, the guide rail is installed on the sliding frame, the parallel floodlight slides with the guide rail through a guide block, and a photosensitive plate for receiving light from the parallel floodlight is installed at the bottom of the plate-aligning table.

[0011] As a further optimization or improvement of the present solution, the moving component also includes a base plate, a rotating table is installed on the base plate, a lifting transmission box is installed on the rotating table, a guide column is installed on the lifting transmission box, the guide column and the transmission block are slidably matched, the transmission block is connected to the connecting frame, and a driving motor for driving the transmission block to lift and lower is installed inside the lifting transmission box.

[0012] As a further optimization or improvement of the present solution, a connecting plate is installed on the connecting block, and the connecting plate is connected to the lower laser emitter via a return spring.

[0013] A method for measuring the angle of a screen printing screen, the method is applied to the screen printing screen angle measuring device as described above, the method comprising the following steps:

[0014] Step S1: First, place the screen to be aligned in the recognition area of ​​the alignment platform, so that the screen to be aligned covers the photosensitive plate, and place the four corners of the alignment screen in the fixed frame;

[0015] Step S2: Control the rotating table to rotate, move the alignment screen to the top of the screen to be aligned, and then control the driving motor inside the lifting transmission box to drive the transmission block to move down along the guide column, so that the alignment screen on the upper fixed frame gradually approaches the screen to be aligned;

[0016] Step S3: As the transmission block moves downward, the transmission block drives the lower fixed frame to contact the four corners of the wire plate to be aligned through the connecting frame and the base frame. As the base frame continues to move downward, the lower fixed frame presses the four corners of the wire plate to be aligned, and then controls the driving motor inside the lifting transmission box to be turned off;

[0017] Step S4: Start the electric pull rod, so that the electric pull rod pulls the scissor joint through the pull plate, and the scissor joint drives the upper fixed frame and the lower fixed frame to tighten, so that the upper fixed frame and the lower fixed frame respectively clamp the four corners of the alignment screen and the screen to be aligned, and align the alignment screen with the screen to be aligned;

[0018] Step S5: As the pull plate moves, the pull plate pulls the pull block through the sliding rod, and through the cooperation relationship between the pull block and the upper laser emitter and the lower laser emitter, the movement of the pull block drives the upper laser emitter to rotate downward and the lower laser emitter to rotate upward, so that the upper laser emitter and the lower laser emitter are respectively projected onto the registration screen and the screen to be registered;

[0019] Step S6: As the upper laser emitter rotates downward, the light emitted by the upper laser emitter irradiates the bottom of the alignment screen, and as the upper laser emitter continues to rotate, the light of the upper laser emitter gathers at the center of the bottom of the alignment screen; as the lower laser emitter rotates upward, the light emitted by the lower laser emitter irradiates the top of the screen to be aligned, and as the lower laser emitter continues to rotate, the light of the lower laser emitter gathers at the center of the top of the screen to be aligned, and the visual sensor is used to identify whether the light of the upper laser emitter and the lower laser emitter is gathered at the center point of the alignment screen and the screen to be aligned;

[0020] Step S7: turn off the upper laser emitter and the lower laser emitter, turn on the parallel floodlight, and the light from the parallel floodlight passes through the printed mesh on the surface of the silk screen to be registered to form an image on the surface of the photosensitive plate. The photosensitive plate sends an electrical signal based on the image and the image is simulated and displayed on the surface of the control end panel.

[0021] As a further optimization or improvement of this solution, step S6 specifically includes the following steps:

[0022] Step S61: If the visual sensor does not detect that the light of the upper laser emitter is concentrated at the center of the bottom of the registration screen, the registration screen is adjusted by controlling the micro cylinder at the bottom of the upper fixed frame through the pad block so that the light of the upper laser emitter is concentrated at the center of the bottom of the registration screen;

[0023] Step S62: If the visual sensor does not detect that the light from the lower laser emitter is concentrated at the center of the top of the wire plate to be aligned, the wire plate to be aligned is adjusted through the pad by controlling the micro cylinder on the top of the lower fixed frame so that the light from the lower laser emitter is concentrated at the center of the top of the wire plate to be aligned.

[0024] Beneficial effects of the present invention:

[0025] (1) In the present invention, the downward movement of the base frame drives the lower fixed frame to contact the four corners of the silk plate to be aligned. As the base frame continues to move downward, the lower fixed frame presses the four corners of the silk plate to be aligned, flattens the frame of the silk plate to be aligned as much as possible, and then clamps the silk plate to be aligned and the alignment screen at the same time through the scissor joint, so that the silk plate to be aligned and the alignment screen can be quickly aligned. At the same time, the frame of the silk plate to be aligned is attached to the alignment table, so that the silk plate to be aligned is as flush with the alignment table as possible, thereby avoiding deformation of the frame of the silk plate to be aligned due to long-term use, which may cause errors in the equipment.

[0026] (2) After the present invention completes the adjustment of the to-be-aligned wire plate and the to-be-aligned screen, as the pulling block continues to move, the pulling block drives the upper laser emitter and the lower laser emitter to move to a horizontal level. At this time, if the lasers emitted by the diagonally arranged upper laser emitter and the lower laser emitter can overlap (under an ideal state) or irradiate the corresponding micro-cylinder, it means that the scissor joint itself is not offset or the offset range of the scissor joint is within the error range, and then the longitudinal offset degree of the scissor joint is measured to avoid the inability to align the to-be-aligned wire plate and the to-be-aligned screen clamped by the scissor joint due to the offset of the scissor joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a schematic front view of the overall structure of the present invention.

[0030] Figure 3 It is an exploded view of the overall structure of the present invention.

[0031] Figure 4 Schematic diagram of the adjustment component structure.

[0032] Figure 5 It is a schematic diagram of the structure of the upper fixed frame and the lower fixed frame.

[0033] Figure 6 Schematic diagram of the sliding fit between the connecting block and the sliding rod.

[0034] Figure 7 It is a schematic diagram of the pull block structure.

[0035] Figure 8It is a schematic diagram of the return spring structure.

[0036] Fig. 9 For along Figure 4 Dashed line section view.

[0037] The following are marked in the figure: 1. Alignment table; 2. Imaging monitoring component; 21. Parallel floodlight; 22. Guide block; 23. Guide rail; 24. Photosensitive plate; 25. Sliding frame; 3. Silk screen to be aligned; 4. Silk screen to be aligned; 5. Moving component; 51. Turntable; 52. Lifting transmission box; 53. Guide column; 54. Transmission block; 55. Connecting frame; 56. Base plate; 6. Adjustment component; 61. Base frame; 62. U-shaped plate ; 63. Electric pull rod; 64. Pull plate; 65. Scissor joint; 66. Reinforcement shaft; 67. Upper fixed frame; 68. Lower fixed frame; 69. Connecting column; 610. Connecting block; 611. Sliding rod; 612. Upper laser emitter; 613. Lower laser emitter; 614. Pull block; 615. Reset spring; 616. Connecting plate; 617. Visual sensor; 618. Micro cylinder; 619. Pad. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 7 A screen angle measuring device for screen plate making, comprising a registration table 1 and a moving component 5, wherein an imaging monitoring component 2 is installed on the registration table 1, a silk plate 3 to be registered is placed on the registration table 1, the moving component 5 comprises a rotating table 51 and a lifting transmission box 52, the rotating table 51 is connected to the lifting transmission box 52, the lifting transmission box 52 is connected to an adjusting component 6 via a connecting frame 55, the adjusting component 6 comprises a base frame 61 and a scissor joint 65, an electric pull rod 63 is installed on the base frame 61, an output end of the electric pull rod 63 is connected to the scissor joint 65, an upper fixed frame 67 and a lower fixed frame 68 are horizontally symmetrically installed at one end of the scissor joint 65 away from the electric pull rod 63, the upper fixed frame 67 and the lower fixed frame 68 are respectively in contact with the four corners of the registration screen 4 and the silk plate 3 to be registered.

[0040] Specifically, the imaging monitoring component 2 includes a parallel floodlight 21 and a guide rail 23. A sliding frame 25 is installed on the alignment table 1, and the guide rail 23 is installed on the sliding frame 25. The parallel floodlight 21 slides with the guide rail 23 through a guide block 22. A photosensitive plate 24 for receiving light from the parallel floodlight 21 is installed at the bottom of the alignment table 1.

[0041] It should be noted that a photosensitive plate 24 is installed at the bottom of the registration table 1, and the light beam of the parallel floodlight 21 can be irradiated onto the photosensitive plate 24 through the registration table 1. A number of densely distributed photosensors are installed on the surface of the photosensitive plate 24, and the photosensors are arranged in a dot matrix. Specifically, the parallel floodlight 21 is used to illuminate the screen plate 3 to be registered and transmit light through the printing pores on the surface of the screen plate 3 to the imaging photosensitive plate 24. The photosensors distributed in the dot matrix on the surface of the photosensitive plate 24 send out electrical signals when receiving light intensity, and the control terminal analyzes the corresponding light intensity receiving signal and the position of the photosensor to form an image, simulating the ink forming image after screen printing.

[0042] It should be noted that both the alignment table 1 and the connecting frame 55 are equipped with a level gauge. When in use, first check whether the alignment table 1 and the connecting frame 55 are level. Since the alignment wire board 3 itself is in a state after multiple uses, the frame of the alignment wire board 3 may be slightly deformed. Even if the alignment table 1 is a horizontal platform, the alignment wire board 3 may not be in a horizontal state after being placed on the alignment table 1.

[0043] Therefore, in the present invention, the base frame 61 moves downward to drive the lower fixed frame 68 to contact the four corners of the wire plate 3 to be aligned, and as the base frame 61 continues to move downward, the lower fixed frame 68 presses the four corners of the wire plate 3 to be aligned, and flattens the frame of the wire plate 3 to be aligned as much as possible, and then clamps the wire plate 3 to be aligned and the alignment screen 4 at the same time through the scissor section 65, so that the wire plate 3 to be aligned and the alignment screen 4 can be quickly aligned, and at the same time, the frame of the wire plate 3 to be aligned is attached to the alignment table 1, so that the wire plate 3 to be aligned is as flush with the alignment table 1 as possible.

[0044] See also Fig. 9 As the pull plate 64 moves, the scissor section 65 is driven to clamp the to-be-aligned silk plate 3 and the alignment silk screen 4. At the same time, the pull plate 64 can drive the upper laser emitter 612 to rotate downward and the lower laser emitter 613 to rotate upward through the pull block 614. As the upper laser emitter 612 and the lower laser emitter 613 rotate, the light of the upper laser emitter 612 and the lower laser emitter 613 is respectively emitted to the bottom of the alignment silk screen 4 and the top of the to-be-aligned silk plate 3. As the upper laser emitter 612 and the lower laser emitter 613 continue to rotate, the light is gathered at the bottom center of the alignment silk screen 4 and the top center of the to-be-aligned silk plate 3, wherein the visual sensor 617 is used to detect the laser beams at the bottom of the alignment silk screen 4 and the top of the to-be-aligned silk plate 3;

[0045] If the light from the lower laser emitter 613 is not gathered on the top of the wire plate 3 to be aligned, it means that the wire plate 3 to be aligned is still in a tilted state. At this time, the transmission block 54 is controlled to move up along the guide column 53 through the lifting transmission box 52, thereby driving the wire plate 3 to be aligned to leave the alignment table 1, providing adjustment space for the wire plate 3 to be aligned, and then the visual sensor 617 controls the micro cylinder 618 on the top of the lower fixed frame 68 to start, so that the micro cylinder 618 pushes the wire plate 3 to be aligned inside the lower fixed frame 68 through the pad 619, thereby adjusting the wire plate 3 to be aligned; if the light from the lower laser emitter 613 is gathered on the top of the wire plate 3 to be aligned, no adjustment is required.

[0046] If the light from the upper laser emitter 612 is not focused on the bottom of the alignment screen 4, it means that the alignment screen 4 is not placed flat, and the visual sensor 617 controls the micro cylinder 618 at the bottom of the upper fixed frame 67 to start, so that the micro cylinder 618 pushes the alignment screen 4 inside the upper fixed frame 67 through the pad 619, thereby adjusting the alignment screen 4. If the light from the lower laser emitter 613 and the upper laser emitter 612 is focused on the top of the to-be-aligned screen 3 and the bottom of the alignment screen 4, respectively, the above adjustment is not required.

[0047] See also Figure 5 The adjustment component 6 also includes a pull plate 64, the pull plate 64 is slidably installed on the base frame 61, a U-shaped plate 62 is installed on the base frame 61, an electric pull rod 63 is fixedly installed on the U-shaped plate 62, the input end of the electric pull rod 63 is connected to the pull plate 64, and the pull plate 64 is connected to one end of the scissor joint 65.

[0048] Specifically, the scissor section 65 is connected to a reinforcement shaft 66, connecting columns 69 are installed on both sides of the reinforcement shaft 66, a connecting block 610 is fixedly installed on the connecting column 69, a lower laser emitter 613 that rotates upward and an upper laser emitter 612 that rotates downward are installed on the connecting block 610, and the lower laser emitter 613 and the upper laser emitter 612 are respectively facing the wire plate 3 to be aligned and the wire screen 4 to be aligned.

[0049] It should be noted that connecting columns 69 and connecting blocks 610 thereon are installed on both sides of the reinforcing shaft 66 , and the pulling plate 64 interacts with the connecting blocks 610 via a sliding rod 611 .

[0050] The scissors joint 65 is composed of a group of upper arms and a group of lower arms. The pull plate 64 is connected to the lower arms of the scissors joint 65. The upper arms of the scissors joint 65 are respectively connected to the upper fixed frame 67 and the lower fixed frame 68. A reinforcement shaft 66 is installed on the upper arms of the scissors joint 65 to improve the working stability of the scissors joint 65.

[0051] See also Figure 6-Figure 7A sliding rod 611 is slidably installed inside the connecting block 610, one end of the sliding rod 611 is connected to the pull plate 64, and the other end of the sliding rod 611 is connected to the pull block 614. The pull block 614 is a lateral trapezoid, and the upper and lower ends of the pull block 614 are respectively abutted against the upper laser emitter 612 and the lower laser emitter 613. A visual sensor 617 is installed inside the pull block 614, and micro cylinders 618 are respectively installed on the upper fixed frame 67 and the lower fixed frame 68. The input end of the micro cylinder 618 is connected to the pad 619, and the micro cylinder 618 is connected to the visual sensor 617.

[0052] Specifically, a connecting plate 616 is installed on the connecting block 610 , and the connecting plate 616 is connected to the lower laser emitter 613 via a return spring 615 .

[0053] It should be noted that since the scissors section 65 structure itself has high longitudinal stability and poor lateral stability, during the process of clamping the alignment screen 4 and the wire plate 3 to be aligned through the upper fixed frame 67 and the lower fixed frame 68, if the clamping force of the scissors section 65 is too heavy, it may easily cause the scissors section 65 to shift laterally.

[0054] Based on this, after the present invention completes the adjustment of the alignment wire plate 3 and the alignment wire screen 4, as the pull block 614 continues to move, the pull block 614 drives the upper laser emitter 612 and the lower laser emitter 613 to move to the horizontal. At this time, if the lasers emitted by the diagonally arranged upper laser emitter 612 and the lower laser emitter 613 can overlap (under ideal conditions) or irradiate the corresponding micro cylinder 618, it means that the scissors joint 65 itself is not offset or the offset range of the scissors joint 65 is within the error range. If the lasers emitted by the diagonally arranged upper laser emitter 612 and the lower laser emitter 613 cannot overlap or cannot irradiate the corresponding micro cylinder 618, it means that the scissors joint 65 is seriously offset laterally and needs to be readjusted before being used again.

[0055] The above-mentioned method of measuring the lateral displacement of the scissor joint 65 can be used before the device is operated, so as to measure the state of the scissor joint 65 before the device is operated.

[0056] See also Figure 1-Figure 3 The moving component 5 also includes a base plate 56, a rotating table 51 is installed on the base plate 56, a lifting transmission box 52 is installed on the rotating table 51, a guide column 53 is installed on the lifting transmission box 52, the guide column 53 is slidably matched with a transmission block 54, the transmission block 54 is connected to a connecting frame 55, and a driving motor for driving the transmission block 54 to rise and fall is installed inside the lifting transmission box 52.

[0057] It should be noted that the lifting transmission box 52 , the guide column 53 and the transmission block 54 cooperate to drive the adjustment component 6 to move up and down, and the rotating platform 51 drives the adjustment component 6 to rotate.

[0058] See also Figure 1-Figure 7 As shown, the present invention is a method for measuring the angle of a screen printing screen, and the method is applied to the screen printing screen angle measuring device as described in the above embodiment, and the method comprises the following steps:

[0059] Step S1: firstly, place the screen plate 3 to be aligned in the identification area of ​​the alignment platform 1, so that the screen plate 3 to be aligned covers the photosensitive plate 24, and place the four corners of the alignment screen 4 in the upper fixing frame 67;

[0060] Step S2: Control the rotating table 51 to rotate, move the alignment screen 4 to the top of the wire plate 3 to be aligned, and then control the driving motor inside the lifting transmission box 52 to drive the transmission block 54 to move down along the guide column 53, so that the alignment screen 4 on the upper fixed frame 67 gradually approaches the wire plate 3 to be aligned;

[0061] Step S3: As the transmission block 54 moves downward, the transmission block 54 drives the lower fixed frame 68 to contact the four corners of the wire plate 3 to be aligned through the connecting frame 55 and the base frame 61. As the base frame 61 continues to move downward, the lower fixed frame 68 presses the four corners of the wire plate 3 to be aligned, and then controls the driving motor inside the lifting transmission box 52 to be turned off;

[0062] Step S4: Start the electric pull rod 63, so that the electric pull rod 63 pulls the scissor joint 65 through the pull plate 64, and the scissor joint 65 drives the upper fixed frame 67 and the lower fixed frame 68 to tighten, so that the upper fixed frame 67 and the lower fixed frame 68 clamp the four corners of the alignment screen 4 and the screen plate 3 to be aligned, and align the alignment screen 4 with the screen plate 3 to be aligned;

[0063] Step S5: As the pulling plate 64 moves, the pulling plate 64 pulls the pulling block 614 through the sliding rod 611, and through the cooperation relationship between the pulling block 614 and the upper laser emitter 612 and the lower laser emitter 613, the pulling block 614 moves to respectively drive the upper laser emitter 612 to rotate downward and the lower laser emitter 613 to rotate upward, so that the upper laser emitter 612 and the lower laser emitter 613 are respectively projected onto the registration screen 4 and the to-be-registered screen 3;

[0064] Step S6: As the upper laser emitter 612 rotates downward, the light emitted by the upper laser emitter 612 irradiates the bottom of the registration screen 4, and as the upper laser emitter 612 continues to rotate, the light of the upper laser emitter 612 gathers at the center of the bottom of the registration screen 4; as the lower laser emitter 613 rotates upward, the light emitted by the lower laser emitter 613 irradiates the top of the to-be-registered silk plate 3, and as the lower laser emitter 613 continues to rotate, the light of the lower laser emitter 613 gathers at the center of the top of the to-be-registered silk plate 3, and the visual sensor 617 is used to identify whether the light of the upper laser emitter 612 and the lower laser emitter 613 gathers at the center point of the registration screen 4 and the to-be-registered silk plate 3;

[0065] Step S7: turn off the upper laser emitter 612 and the lower laser emitter 613, turn on the parallel floodlight 21, and the light from the parallel floodlight 21 passes through the printed mesh on the surface of the silk screen 3 to be registered to form an image on the surface of the photosensitive plate 24. The photosensitive plate 24 emits an electrical signal based on the imaging to simulate and display the image on the surface of the control end panel.

[0066] like Figure 4-Figure 6 As shown, as a preferred embodiment of the present invention, step S6 specifically includes the following steps:

[0067] Step S61: If the visual sensor 617 does not detect that the light of the upper laser emitter 612 is concentrated at the center of the bottom of the registration screen 4, the registration screen 4 is adjusted by controlling the micro cylinder 618 at the bottom of the upper fixed frame 67 through the pad 619 so that the light of the upper laser emitter 612 is concentrated at the center of the bottom of the registration screen 4;

[0068] Step S62: If the visual sensor 617 does not detect that the light from the lower laser emitter 613 is concentrated at the center of the top of the wire plate 3 to be aligned, the wire plate 3 to be aligned is adjusted by controlling the micro cylinder 618 on the top of the lower fixed frame 68 through the pad 619 so that the light from the lower laser emitter 613 is concentrated at the center of the top of the wire plate 3 to be aligned.

[0069] The implementation principle of the present invention is:

[0070] First, place the screen 3 to be aligned in the identification area of ​​the alignment platform 1, so that the screen 3 to be aligned covers the photosensitive plate 24, place the four corners of the alignment screen 4 in the upper fixed frame 67, control the rotation of the rotating platform 51, move the alignment screen 4 to the top of the screen 3 to be aligned, and then control the driving motor inside the lifting transmission box 52 to drive the transmission block 54 to move down along the guide column 53, so that the alignment screen 4 on the upper fixed frame 67 gradually approaches the screen 3 to be aligned. As the transmission block 54 moves down, the base frame 67 1 drives the lower fixed frame 68 to contact the four corners of the wire plate 3 to be aligned. As the base frame 61 continues to move downward, the lower fixed frame 68 presses the four corners of the wire plate 3 to be aligned, and the frame of the wire plate 3 to be aligned is flattened as much as possible. Then, the wire plate 3 to be aligned and the alignment screen 4 are clamped by the scissor section 65 at the same time, so that the wire plate 3 to be aligned and the alignment screen 4 can be quickly aligned. At the same time, the frame of the wire plate 3 to be aligned is attached to the alignment table 1, so that the wire plate 3 to be aligned is as flush with the alignment table 1 as possible.

[0071] As the pull plate 64 moves, the scissor section 65 is driven to clamp the to-be-aligned silk plate 3 and the alignment silk screen 4. At the same time, the pull plate 64 can drive the upper laser emitter 612 to rotate downward and the lower laser emitter 613 to rotate upward through the pull block 614. As the upper laser emitter 612 and the lower laser emitter 613 rotate, the light of the upper laser emitter 612 and the lower laser emitter 613 is respectively projected on the bottom of the alignment silk screen 4 and the top of the to-be-aligned silk plate 3. As the upper laser emitter 612 and the lower laser emitter 613 continue to rotate, the light is gathered at the bottom center of the alignment silk screen 4 and the top center of the to-be-aligned silk plate 3.

[0072] If the light from the lower laser emitter 613 is not gathered on the top of the wire plate 3 to be aligned, it means that the wire plate 3 to be aligned is still in a tilted state. At this time, the transmission block 54 is controlled to move up along the guide column 53 through the lifting transmission box 52, thereby driving the wire plate 3 to be aligned to leave the alignment table 1, providing adjustment space for the wire plate 3 to be aligned, and then the visual sensor 617 controls the micro cylinder 618 on the top of the lower fixed frame 68 to start, so that the micro cylinder 618 pushes the wire plate 3 to be aligned inside the lower fixed frame 68 through the pad 619, thereby adjusting the wire plate 3 to be aligned; if the light from the lower laser emitter 613 is gathered on the top of the wire plate 3 to be aligned, no adjustment is required.

[0073] As the pull plate 64 drives the pull block 614 to continue to move, the pull block 614 drives the upper laser emitter 612 and the lower laser emitter 613 to move to a horizontal position. At this time, if the lasers emitted by the diagonally arranged upper laser emitter 612 and the lower laser emitter 613 can overlap (under ideal conditions) or shine on the corresponding micro cylinder 618, it means that the scissors joint 65 itself is not offset or the offset range of the scissors joint 65 is within the error range. If the lasers emitted by the diagonally arranged upper laser emitter 612 and the lower laser emitter 613 cannot overlap or shine on the corresponding micro cylinder 618, it means that the scissors joint 65 is seriously offset laterally and needs to be readjusted before being used again.

[0074] After the adjustment is completed, turn off the upper laser emitter 612 and the lower laser emitter 613, turn on the parallel floodlight 21, and the light from the parallel floodlight 21 passes through the printed mesh on the surface of the silk screen 3 to be aligned to form an image on the surface of the photosensitive plate 24. The photosensitive plate 24 emits an electrical signal based on the imaging to simulate the image on the surface of the control end panel.

[0075] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A screen angle measuring device for screen making, characterized in that: It comprises a registration table (1) and a moving component (5), wherein an imaging monitoring component (2) is installed on the registration table (1), a screen plate (3) to be registered is placed on the registration table (1), the moving component (5) comprises a rotating table (51) and a lifting transmission box (52), the rotating table (51) is connected to the lifting transmission box (52), the adjusting component (6) comprises a base frame (61) and a scissor joint (65), an electric pull rod (63) is installed on the base frame (61), an upper fixed frame (67) and a lower fixed frame (68) are horizontally and symmetrically installed at one end of the scissor joint (65) away from the electric pull rod (63), and the upper fixed frame (67) and the lower fixed frame (68) are respectively in contact with the registration screen (4) and the four corners of the screen plate (3) to be registered; The adjustment assembly (6) further comprises a pull plate (64), the pull plate (64) being slidably mounted on the base frame (61), a U-shaped plate (62) being mounted on the base frame (61), an electric pull rod (63) being fixedly mounted on the U-shaped plate (62), an output end of the electric pull rod (63) being connected to the pull plate (64), and the pull plate (64) being connected to one end of the scissor joint (65); The scissor joint (65) is connected to a reinforcement shaft (66), connecting columns (69) are installed on both sides of the reinforcement shaft (66), a connecting block (610) is fixedly installed on the connecting column (69), a lower laser emitter (613) that rotates upward and an upper laser emitter (612) that rotates downward are installed on the connecting block (610), and the lower laser emitter (613) and the upper laser emitter (612) are respectively oriented toward the to-be-aligned silk screen (3) and the alignment silk screen (4), and micro cylinders (618) are installed on both sides of the laser ports of the lower laser emitter (613) and the upper laser emitter (612); A sliding rod (611) is slidably installed inside the connecting block (610), one end of the sliding rod (611) is connected to the pulling plate (64), and the other end of the sliding rod (611) is connected to the pulling block (614), the pulling block (614) is in a lateral trapezoidal shape, and the upper and lower ends of the pulling block (614) are respectively abutted against the upper laser emitter (612) and the lower laser emitter (613), a visual sensor (617) is installed inside the pulling block (614), and micro cylinders (618) are respectively installed on the upper fixed frame (67) and the lower fixed frame (68), the input end of the micro cylinder (618) is connected to the cushion block (619), and the micro cylinder (618) is connected to the visual sensor (617); The imaging monitoring assembly (2) comprises a parallel floodlight (21) and a guide rail (23); a sliding frame (25) is mounted on the alignment platform (1); the guide rail (23) is mounted on the sliding frame (25); the parallel floodlight (21) is slidably engaged with the guide rail (23) via a guide block (22); and a photosensitive plate (24) for receiving light from the parallel floodlight (21) is mounted at the bottom of the alignment platform (1); The moving assembly (5) further comprises a base plate (56), a rotating table (51) is mounted on the base plate (56), a lifting transmission box (52) is mounted on the rotating table (51), a guide column (53) is mounted on the lifting transmission box (52), the guide column (53) and the transmission block (54) are slidably matched, the transmission block (54) is connected to the connecting frame (55), and a driving motor for driving the transmission block (54) to move up and down is mounted inside the lifting transmission box (52); A connecting plate (616) is mounted on the connecting block (610), and the connecting plate (616) is connected to the lower laser emitter (613) via a return spring (615).

2. A method for measuring the angle of a screen printing screen, characterized in that: The method is applied to the screen angle measuring device for screen making as claimed in claim 1, and the method comprises the following steps: Step S1: firstly, the screen plate (3) to be aligned is placed in the identification area of ​​the alignment platform (1), so that the screen plate (3) to be aligned covers the photosensitive plate (24), and the four corners of the alignment screen (4) are placed in the upper fixed frame (67); Step S2: Control the rotating table (51) to rotate, move the alignment screen (4) to the top of the screen plate (3) to be aligned, and then control the driving motor inside the lifting transmission box (52) to drive the transmission block (54) to move downward along the guide column (53), so that the alignment screen (4) on the upper fixed frame (67) gradually approaches the screen plate (3) to be aligned; Step S3: As the transmission block (54) moves downward, the transmission block (54) drives the lower fixed frame (68) to contact the four corners of the wire plate to be aligned (3) through the connecting frame (55) and the base frame (61). As the base frame (61) continues to move downward, the lower fixed frame (68) presses the four corners of the wire plate to be aligned (3), and then controls the driving motor inside the lifting transmission box (52) to be turned off; Step S4: starting the electric pull rod (63), so that the electric pull rod (63) pulls the scissor joint (65) through the pull plate (64), and the scissor joint (65) drives the upper fixed frame (67) and the lower fixed frame (68) to be tightened, so that the upper fixed frame (67) and the lower fixed frame (68) respectively clamp the four corners of the alignment screen (4) and the screen plate to be aligned (3), and align the alignment screen (4) with the screen plate to be aligned (3); Step S5: As the pulling plate (64) moves, the pulling plate (64) pulls the pulling block (614) through the sliding rod (611), and through the cooperation between the pulling block (614) and the upper laser emitter (612) and the lower laser emitter (613), the pulling block (614) moves to respectively drive the upper laser emitter (612) to rotate downward and the lower laser emitter (613) to rotate upward, so that the upper laser emitter (612) and the lower laser emitter (613) are respectively projected onto the registration screen (4) and the screen to be registered (3); Step S6: As the upper laser emitter (612) rotates downward, the light emitted by the upper laser emitter (612) irradiates the bottom of the registration screen (4); as the upper laser emitter (612) continues to rotate, the light of the upper laser emitter (612) gathers at the center of the bottom of the registration screen (4); as the lower laser emitter (613) rotates upward, the light emitted by the lower laser emitter (613) irradiates the top of the screen to be registered (3); as the lower laser emitter (613) continues to rotate, the light of the lower laser emitter (613) gathers at the center of the top of the screen to be registered (3); and the visual sensor (617) is used to identify whether the light of the upper laser emitter (612) and the lower laser emitter (613) gathers at the center point of the registration screen (4) and the screen to be registered (3); Step S7: turn off the upper laser emitter (612) and the lower laser emitter (613), turn on the parallel floodlight (21), and the light from the parallel floodlight (21) passes through the printed mesh on the surface of the screen plate (3) to be aligned to form an image on the surface of the photosensitive plate (24). The photosensitive plate (24) emits an electrical signal based on the image to simulate the image on the surface of the control end panel.

3. A method for measuring the angle of a screen printing screen according to claim 2, characterized in that: The step S6 specifically comprises the following steps: Step S61: If the visual sensor (617) does not detect that the light from the upper laser emitter (612) is concentrated at the center of the bottom of the registration screen (4), the registration screen (4) is adjusted by controlling the micro cylinder (618) at the bottom of the upper fixed frame (67) through the pad (619) so that the light from the upper laser emitter (612) is concentrated at the center of the bottom of the registration screen (4); Step S62: If the visual sensor (617) does not detect that the light from the lower laser emitter (613) is concentrated at the center of the top of the wire plate to be aligned (3), the wire plate to be aligned (3) is adjusted by controlling the micro cylinder (618) at the top of the lower fixed frame (68) through the pad (619) so that the light from the lower laser emitter (613) is concentrated at the center of the top of the wire plate to be aligned (3).

Images