Plate making machine and plate making method of screen printing plate

Abstract

The plate making machine comprises a machine body, a containing groove is formed in the center of the top of the machine body, a tensioning mechanism is arranged at the top of the machine body and used for adjusting the tension degree of gauze, and a positioning mechanism is arranged in an inner cavity of the containing groove and used for fixing a screen frame. The invention relates to the technical field of screen printing plate preparation. According to the plate making machine of the silk-screen printing plate and the plate making method, flexible adjustment of the distance in the left-right direction of a positioning roller is achieved through the arrangement of a positioning assembly under the driving of a positioning motor, and flexible adjustment of the distance in the front-back direction of the positioning roller is achieved through the arrangement of an adjusting assembly under the driving of a control bevel gear; in this way, screen frames of different sizes can be externally supported and fixed through the four sets of positioning rollers, the screen frames are kept stable all the time in the follow-up screen yarn installation process, and then the finished product quality of a silk screen brush plate is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of screen printing plate preparation, in particular to a screen printing plate making machine and a plate making method. Background Art

[0002] The reference patent name is: A method for preparing a silk screen brush plate (patent publication number: CN106494074A, patent publication date: 2017.03.15), comprising the following steps: providing a prepared composite silk screen plate, the composite silk screen plate comprising a silk screen and an elastic support body, the silk screen being located in the hollowed-out area in the middle of the elastic support body; uniformly coating the silk screen with conductive glue to form a conductive coating on the silk screen; performing a wall-building treatment on the conductive coating, i.e., flattening the conductive coating with a sheet material that is incompatible with the conductive glue; combining photographic imaging technology with electroplating and / or electroforming processes, electroforming or electroplating a metal layer in the non-graphic area on the conductive coating, the graphic area being located in the metal layer, thereby obtaining the silk screen printing plate. In this method, since the surface finish and flatness of the conductive coating are better, the metal layer electroplated on the conductive coating also has better surface finish and flatness, which is beneficial to the subsequent printing effect.

[0003] Based on what is described in the above-mentioned document: In the preparation process of the existing silk screen printing plate, the gauze needs to be bonded to the screen frame first, and the screen frame sizes required for different silk screen brush plates are different. The fixed structure in the existing platemaking machine is relatively simple, and it is impossible to maintain the stability of screen frames of different sizes during the bonding process. In addition, the gauze has certain flexibility and elasticity, which will make the gauze uneven when the two are bonded, affecting the quality of the finished product of the silk screen printing plate. For this reason, the present invention provides a screen printing platemaking machine and a platemaking method. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a platemaking machine and platemaking method for a screen printing plate, which solves the problem that the fixing structure in the existing platemaking machine is relatively simple and cannot maintain the stability of screen frames of different sizes during the bonding process, and the gauze has a certain flexibility and elasticity, which will cause the gauze to become uneven when the two are bonded, affecting the quality of the finished product of the screen printing plate.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A screen printing plate making machine includes a machine body, a placement slot is opened at the center of the top of the machine body, a tensioning mechanism is provided on the top of the machine body for adjusting the tension of the mesh, and a positioning mechanism is provided in the inner cavity of the placement slot for fixing the screen frame, and the positioning mechanism includes:

[0006] The positioning assembly includes a device box slidably mounted on the inner surface of the placement slot, a positioning motor fixedly connected to the bottom of the device box, one end of the output shaft of the positioning motor fixedly connected to a rotating plate via a coupling, and the two ends of the rotating plate enable the movable plate to slide via a transmission assembly, and symmetrical positioning rollers are provided above the movable plate;

[0007] An adjusting assembly is provided inside the movable plate and is used to adjust the distance between the two sets of positioning rollers;

[0008] The lifting assembly is arranged at the bottom of the machine body and is used for driving the device box to slide on the inner surface of the placement slot.

[0009] Preferably, the transmission assembly includes a transmission rod rotatably mounted on one end of the rotating plate, one end of the transmission rod is rotatably connected to the transmission plate, and the top of the transmission plate is fixedly connected to the bottom of the movable plate via a slider.

[0010] Preferably, a symmetrical slide rail is fixedly connected to the bottom of the inner cavity of the equipment box, and the surface of the slide rail is slidably connected to the bottom of the transmission plate.

[0011] Preferably, the adjustment assembly includes an adjustment block rotatably mounted inside the movable plate, one end of the adjustment block is fixedly connected to an adjustment bevel gear, and the surface of the adjustment bevel gear enables the positioning roller to slide through a linkage assembly.

[0012] Preferably, the linkage assembly includes a linkage screw rod rotatably installed inside the movable plate, one end of the linkage screw rod is fixedly connected to a linkage bevel gear, the surface of the linkage bevel gear is meshed with the surface of the adjusting bevel gear, the surface of the linkage screw rod is threadedly connected to a linkage block, the top of the linkage block is slidably connected to the inside of the movable plate through a movable rod, and the surface of the movable rod is rotationally connected to the inside of the positioning roller.

[0013] Preferably, the lifting assembly includes a lifting cylinder installed at the bottom of the body, the top of the lifting cylinder is fixedly connected to a connecting plate through a piston rod, the top of the connecting plate is fixedly connected to the bottom of the equipment box, and the bottom of the inner cavity of the connecting plate is fixedly connected to the bottom of the positioning motor.

[0014] Preferably, the tensioning mechanism includes a concave plate slidably mounted on the top of the machine body, the bottom of the inner cavity of the concave plate is fixedly connected to a fixed plate, the top of the concave plate is fixedly connected to a driving motor, one end of the output shaft of the driving motor is fixedly connected to a driving rod through a coupling, the surface of the driving rod is fixedly connected to a driving gear, the top of the concave plate is fixedly connected to a guide tube, the inside of the guide tube is slidably connected to a sliding gear rod, the surface of the sliding gear rod is combined with the surface of the driving gear, and the bottom end of the sliding gear rod is fixedly connected to a pressure plate.

[0015] Preferably, a control block is fixedly connected to the top of the body, the internal thread of the control block is connected to a control screw, one end of the control screw is fixedly connected to a control handle, and the other end of the control screw is rotatably connected to one side of the concave plate.

[0016] The present invention also discloses a method for making a screen printing plate, which specifically comprises the following steps:

[0017] S1. Fixing the screen frame: First, place the screen frame in the placement slot so that the screen frame is located on the top of the movable plate. Then, the adjusting block is driven to rotate the adjusting bevel gear. The rotation of the adjusting bevel gear causes the two linked bevel gears to rotate synchronously and in opposite directions. The rotation of the linked bevel gear drives the linked screw to rotate. The rotation of the linked screw causes the linked blocks, moving rods and positioning rollers on both sides to slide synchronously to opposite sides, so that the two sets of positioning rollers fit the inner surface of the screen frame to achieve external support fixation in the front and rear directions of the screen frame. The two sets of positioning rollers on the other side are adjusted synchronously. Then, the rotating plate is driven to rotate by the positioning motor. The rotation of the rotating plate causes one end of the transmission rod to rotate at one end of the rotating plate, and the other end of the transmission rod rotates on one side of the transmission plate, so that the transmission plates on both sides slide synchronously to opposite sides, and the transmission plate slides on the surface of the slide rail. The sliding of the transmission plate drives the slider, moving plate and positioning rollers to slide synchronously to opposite sides, thereby causing the positioning rollers to roll on the inner surface of the screen frame until both sides of the inner wall of the screen frame, thereby achieving external support fixation in the left and right directions of the screen frame.

[0018] S2. Fixing the mesh: Then, place the cut mesh on the fixed plate at the bottom of the inner cavity of the concave plate, and start the drive motor to drive the drive rod and three sets of drive gears to rotate synchronously. The rotation of the drive gear causes the three sets of sliding gear rods to slide downward synchronously. The sliding of the sliding gear rod drives the pressure plate to slide downward, and the edge of the mesh is pressed down and fixed by the pressure plate. Then, the control handles on the four sides of the top of the machine body are rotated respectively to drive the control screw to rotate. The control screw rotates inside the control block, thereby pulling the concave plate to slide on the top of the machine body, thereby traction on the four sides of the mesh to tighten the mesh.

[0019] S3. Screen installation: Start the lifting cylinder to drive the connecting plate, positioning motor and equipment box to slide upward synchronously, and then make the screen frame slide upward, so that the screen frame and screen are fully fitted, and then glue is applied to fix the screen on the screen frame. When the screen is completely fixed, it is cut with a cutter, and finally the screen frame and screen are taken out together.

[0020] S4. Plate making operation: determine the position of the film on the screen, then use a fine-bristled brush to evenly brush the photosensitive glue on the mesh, then put the screen frame and mesh into the oven for heating and fixing. After the heating and curing is completed, take out the screen frame and stick the film on the mesh, then put the screen frame and mesh into the platemaking machine, adjust the machine for exposure operation, and finally, use clean water to clean off the photosensitive glue on the pattern part.

[0021] Beneficial effects

[0022] The present invention provides a screen printing plate making machine and method. Compared with the prior art, the present invention has the following advantages:

[0023] (1) The plate-making machine and plate-making method of the screen printing plate are provided with a positioning component, which realizes flexible adjustment of the left-right direction distance of the positioning rollers by using the positioning motor, and is provided with an adjustment component, which realizes flexible adjustment of the front-back direction distance of the positioning rollers by using the control bevel gear. In this way, the screen frames of different sizes can be supported and fixed by four groups of positioning rollers, so that the screen frames can always remain stable during the subsequent installation of the mesh, thereby improving the quality of the finished product of the screen printing plate.

[0024] (2) The plate-making machine and plate-making method of the screen printing plate are provided with a tensioning mechanism. The height of the pressing plate can be flexibly adjusted by the driving motor, and the four sides of the mesh are fixed by the pressing plate and the fixing plate. Subsequently, the positions of the pressing plate and the fixing plate are adjusted by controlling the handle, the control block and the control screw, so as to achieve traction on the four sides of the mesh, tighten the mesh, avoid wrinkles, and improve the quality of the finished product of the screen printing plate.

[0025] (3) The plate-making machine and plate-making method of the screen printing plate are provided with a lifting assembly. Driven by the lifting cylinder, the positioning motor and the device box are caused to slide upward synchronously as a whole, thereby causing the screen frame to slide upward, so that the screen frame and the mesh are fully fitted together, thereby facilitating subsequent gluing and cutting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the external structure of the present invention;

[0027] Figure 2 A cross-sectional view of the internal structure of the device box of the present invention;

[0028] Figure 3 Schematic diagram of the three-dimensional structure of the adjustment component of the present invention;

[0029] Figure 4 A cross-sectional view of the internal structure of the workbench of the present invention;

[0030] Figure 5 It is a three-dimensional schematic diagram of the tensioning mechanism of the present invention.

[0031] In the figure: 1-workbench, 2-placement groove, 3-tensioning mechanism, 31-concave plate, 32-fixed plate, 33-drive motor, 34-drive rod, 35-drive gear, 36-guide tube, 37-sliding gear rod, 38-pressing plate, 4-positioning mechanism, 41-positioning assembly, 411-equipment box, 412-positioning motor, 413-rotating plate, 414-moving plate, 415-positioning roller, 42-adjusting assembly, 421-adjusting block, 422-adjusting bevel gear, 43-lifting assembly, 431-lifting cylinder, 432-connecting plate, 5-transmission assembly, 51-transmission rod, 52-transmission plate, 6-slide rail, 7-linkage assembly, 71-linkage screw rod, 72-linkage bevel gear, 73-linkage block, 8-control block, 9-control screw rod, 10-control handle. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-5 , the present invention provides a technical solution:

[0034] A screen printing plate making machine includes a body 1, a placement slot 2 is provided at the center of the top of the body 1, a tensioning mechanism 3 is provided on the top of the body 1 for adjusting the tension of the mesh, and a positioning mechanism 4 is provided in the inner cavity of the placement slot 2 for fixing the screen frame. The positioning mechanism 4 includes:

[0035] Positioning assembly 41 includes a device box 411 slidably mounted on the inner surface of placement slot 2. A positioning motor 412 is fixedly connected to the bottom of device box 411. One end of the output shaft of positioning motor 412 is fixedly connected to a rotating plate 413 via a coupling. The two ends of rotating plate 413 cause a movable plate 414 to slide via transmission assembly 5. Symmetrical positioning rollers 415 are provided above movable plate 414.

[0036] The adjustment assembly 42 is disposed inside the movable plate 414 and is used to adjust the distance between the two sets of positioning rollers 415;

[0037] The lifting assembly 43 is provided at the bottom of the body 1 and is used to drive the device box 411 to slide on the inner surface of the placement slot 2 .

[0038] The positioning motor 412 is a three-phase asynchronous motor and is connected to an external circuit via wires.

[0039] In the embodiment of the present invention, the transmission assembly 5 includes a transmission rod 51 rotatably mounted on one end of the rotating plate 413 , one end of the transmission rod 51 is rotatably connected to a transmission plate 52 , and the top of the transmission plate 52 is fixedly connected to the bottom of the movable plate 414 via a slider.

[0040] A symmetrical chute is provided on the top of the device box 411 , and a slider is installed on the top of the transmission plate 52 . The top of the slider is fixedly connected to the bottom of the moving plate 414 , and the slider slides on the inner surface of the chute.

[0041] In the embodiment of the present invention, a symmetrical slide rail 6 is fixedly connected to the bottom of the inner cavity of the device box 411 , and the surface of the slide rail 6 is slidably connected to the bottom of the transmission plate 52 .

[0042] The slide rail 6 is used to limit the sliding movement of the transmission plate 52 so that the transmission plate 52 does not deviate when sliding.

[0043] In the embodiment of the present invention, the adjustment component 42 includes an adjustment block 421 rotatably mounted inside the movable plate 414 , one end of the adjustment block 421 is fixedly connected to an adjustment bevel gear 422 , and the surface of the adjustment bevel gear 422 causes the positioning roller 415 to slide through the linkage component 7 .

[0044] In an embodiment of the present invention, the linkage assembly 7 includes a linkage screw rod 71 rotatably installed inside the movable plate 414, one end of the linkage screw rod 71 is fixedly connected to a linkage bevel gear 72, the surface of the linkage bevel gear 72 is meshed with the surface of the adjusting bevel gear 422, the surface of the linkage screw rod 71 is threadedly connected to a linkage block 73, the top of the linkage block 73 is connected to the interior of the movable plate 414 through a movable rod, and the surface of the movable rod is connected to the interior of the positioning roller 415 for rotation.

[0045] There are two linkage bevel gears 72, and the surfaces of the two linkage bevel gears 72 are engaged with the surface of the adjustment bevel gear 422; a symmetrical limiting groove is opened on the top of the movable plate 414, the movable rod slides on the inner surface of the limiting groove, and the linkage block 73 slides inside the movable plate 414.

[0046] By rotating the adjusting block 421, the adjusting bevel gear 422 is driven to rotate. The rotation of the adjusting bevel gear 422 makes the two linked bevel gears 72 rotate synchronously and in opposite directions. The rotation of the linked bevel gear 72 drives the linked screw rod 71 to rotate. The rotation of the linked screw rod 71 makes the linkage blocks 73, the moving rod and the positioning roller 415 on both sides slide synchronously to the opposite sides, so that the two sets of positioning rollers 415 are in contact with the inner surface of the screen frame, thereby achieving the external support fixation of the screen frame in the front and rear directions. The two sets of positioning rollers 415 on the other side are adjusted synchronously. Subsequently, the positioning motor 412 drives the rotating plate 413 to rotate. The rotation of the rotating plate 413 makes one end of the transmission rod 51 rotate at one end of the rotating plate 413, and the other end of the transmission rod 51 rotates on one side of the transmission plate 52, so that the transmission plates 52 on both sides move synchronously to the opposite sides. The transmission plate 52 slides on the surface of the slide rail 6, and the sliding of the transmission plate 52 drives the slider, the movable plate 414 and the positioning roller 415 to slide synchronously to the opposite side, so that the positioning roller 415 rolls on the inner surface of the screen frame until it reaches both sides of the inner wall of the screen frame, thereby realizing the external support and fixation of the screen frame in the left and right directions. By providing a positioning component 41, the positioning motor 412 is used to drive the positioning roller 415 to flexibly adjust the left and right distance of the positioning roller 415, and by providing an adjustment component 42, the control bevel gear is used to drive the front and rear distance of the positioning roller 415. In this way, the four groups of positioning rollers 415 can be used to realize the external support and fixation of screen frames of different sizes, so that the screen frame remains stable during the subsequent installation of the mesh, thereby improving the quality of the finished product of the silk screen brush plate.

[0047] In an embodiment of the present invention, the lifting assembly 43 includes a lifting cylinder 431 installed at the bottom of the body 1. The top of the lifting cylinder 431 is fixedly connected to a connecting plate 432 through a piston rod. The top of the connecting plate 432 is fixedly connected to the bottom of the equipment box 411, and the bottom of the inner cavity of the connecting plate 432 is fixedly connected to the bottom of the positioning motor 412.

[0048] The lifting cylinder 431 is connected to an external air source through an air pipe; the piston rod slides inside the body 1.

[0049] By providing a lifting assembly 43, driven by the lifting cylinder 431, the positioning motor 412 and the device box 411 slide upward synchronously as a whole, and then the mesh frame slides upward, so that the mesh frame and the mesh are fully fitted, thereby facilitating subsequent gluing and cutting operations.

[0050] In an embodiment of the present invention, the tensioning mechanism 3 includes a concave plate 31 slidably mounted on the top of the body 1, a fixed plate 32 is fixedly connected to the bottom of the inner cavity of the concave plate 31, a drive motor 33 is fixedly connected to the top of the concave plate 31, one end of the output shaft of the drive motor 33 is fixedly connected to a drive rod 34 through a coupling, the surface of the drive rod 34 is fixedly connected to a drive gear 35, a guide tube 36 is fixedly connected to the top of the concave plate 31, a sliding gear rod 37 is slidably connected to the inside of the guide tube 36, the surface of the sliding gear rod 37 is combined with the surface of the drive gear 35, and the bottom end of the sliding gear rod 37 is fixedly connected to a pressure plate 38.

[0051] The driving motor 33 is a three-phase asynchronous motor and is connected to the external circuit through wires; the surface of the driving rod 34 is rotatably connected to a connecting block, which is installed on the top of the concave plate 31; the surface of the sliding gear rod 37 is provided with multiple sets of tooth grooves, and the surface of the driving gear 35 is engaged with the inner surface of the tooth groove.

[0052] In an embodiment of the present invention, a control block 8 is fixedly connected to the top of the body 1, a control screw 9 is connected to the internal thread of the control block 8, one end of the control screw 9 is fixedly connected to the control handle 10, and the other end of the control screw 9 is rotatably connected to one side of the concave plate 31.

[0053] By starting the drive motor 33, the drive rod 34 and the three sets of drive gears 35 rotate synchronously. The rotation of the drive gear 35 causes the three sets of sliding gear rods 37 to slide downward synchronously. The sliding of the sliding gear rod 37 drives the pressing plate 38 to slide downward, and the mesh edge is pressed down and fixed by the pressing plate 38. Subsequently, the control handles 10 on the four sides of the top of the machine body 1 are respectively rotated to drive the control screw rod 9 to rotate. The control screw rod 9 rotates inside the control block 8, thereby pulling the concave plate 31 to slide on the top of the machine body 1, thereby achieving traction on the four sides of the mesh and tightening the mesh. By providing a tensioning mechanism 3, the height of the pressing plate 38 can be flexibly adjusted under the drive of the drive motor 33, and then the four sides of the mesh are fixed by the pressing plate 38 and the fixing plate 32. Subsequently, the positions of the pressing plate 38 and the fixing plate 32 are adjusted by the control handle 10, the control block 8 and the control screw rod 9, thereby achieving traction on the four sides of the mesh and tightening the mesh to avoid wrinkles and improve the quality of the finished product of the screen brushing plate.

[0054] The embodiment of the present invention further discloses a method for making a screen printing plate, which specifically includes the following steps:

[0055] S1. Fixing the screen frame: First, place the screen frame in the placement slot 2 so that the screen frame is located on the top of the movable plate 414. Then, rotate the adjusting block 421 to drive the adjusting bevel gear 422 to rotate. The rotation of the adjusting bevel gear 422 causes the two linked bevel gears 72 to rotate synchronously and in opposite directions. The rotation of the linked bevel gear 72 drives the linked screw rod 71 to rotate. The rotation of the linked screw rod 71 causes the linked blocks 73, the moving rod and the positioning rollers 415 on both sides to slide synchronously to the opposite sides, so that the two sets of positioning rollers 415 fit the inner surface of the screen frame, thereby achieving the external support fixation of the front and rear directions of the screen frame. The two sets of positioning rollers 41 on the other side are fixed. 5 is adjusted synchronously, and then the positioning motor 412 drives the rotating plate 413 to rotate. The rotation of the rotating plate 413 causes one end of the transmission rod 51 to rotate on one end of the rotating plate 413, and the other end of the transmission rod 51 rotates on one side of the transmission plate 52, so that the transmission plates 52 on both sides slide synchronously to the opposite sides. The transmission plates 52 slide on the surface of the slide rail 6. The sliding of the transmission plates 52 drives the slider, the movable plate 414 and the positioning roller 415 to slide synchronously to the opposite sides, thereby causing the positioning roller 415 to roll on the inner surface of the screen frame until it reaches both sides of the inner wall of the screen frame, thereby achieving the external support and fixation of the screen frame in the left and right directions.

[0056] S2. Fixing the mesh: Then, the cut mesh is placed on the fixed plate 32 at the bottom of the inner cavity of the concave plate 31, and the driving motor 33 is started to drive the driving rod 34 and the three sets of driving gears 35 to rotate synchronously. The rotation of the driving gear 35 causes the three sets of sliding gear rods 37 to slide downward synchronously. The sliding of the sliding gear rods 37 drives the pressing plate 38 to slide downward, and the mesh edge is pressed down and fixed by the pressing plate 38. Then, the control handles 10 on the four sides of the top of the body 1 are rotated respectively to drive the control screw rod 9 to rotate. The control screw rod 9 rotates inside the control block 8, thereby pulling the concave plate 31 to slide on the top of the body 1, thereby traction of the four sides of the mesh is achieved and the mesh is tightened.

[0057] S3. Installation of mesh: By starting the lifting cylinder 431, the connecting plate 432, the positioning motor 412 and the equipment box 411 are driven to slide upward synchronously as a whole, and then the mesh frame slides upward so that the mesh frame and the mesh are fully fitted. Then, the mesh is fixed on the mesh frame by gluing. When the mesh is completely fixed, it is cut with a cutter, and finally the mesh frame and the mesh are taken out together.

[0058] S4. Plate making operation: determine the position of the film on the screen, then use a fine-bristled brush to evenly brush the photosensitive glue on the mesh, then put the screen frame and mesh into the oven for heating and fixing. After the heating and curing is completed, take out the screen frame and stick the film on the mesh, then put the screen frame and mesh into the platemaking machine, adjust the machine for exposure operation, and finally, use clean water to clean off the photosensitive glue on the pattern part.

[0059] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0060] During operation, first place the screen frame in the placement slot 2 so that the screen frame is located on the top of the movable plate 414, and then, by rotating the adjusting block 421, the adjusting bevel gear 422 is driven to rotate. The rotation of the adjusting bevel gear 422 causes the two linked bevel gears 72 to rotate synchronously and in opposite directions. The rotation of the linked bevel gear 72 drives the linked screw rod 71 to rotate. The rotation of the linked screw rod 71 causes the linked blocks 73, the moving rod and the positioning rollers 415 on both sides to slide synchronously to the opposite sides, so that the two sets of positioning rollers 415 fit the inner surface of the screen frame, thereby realizing the external support fixation of the front and rear directions of the screen frame. The two sets of positioning rollers 415 on the other side are adjusted synchronously, and then, The positioning motor 412 drives the rotating plate 413 to rotate. The rotation of the rotating plate 413 causes one end of the transmission rod 51 to rotate at one end of the rotating plate 413, and the other end of the transmission rod 51 rotates on one side of the transmission plate 52, so that the transmission plates 52 on both sides slide synchronously to the opposite sides. The transmission plates 52 slide on the surface of the slide rail 6. The sliding of the transmission plate 52 drives the slider, the moving plate 414 and the positioning roller 415 to slide synchronously to the opposite sides, thereby causing the positioning roller 415 to roll on the inner surface of the screen frame until it reaches both sides of the inner wall of the screen frame, thereby achieving the external support and fixation of the screen frame in the left and right directions. Subsequently, the cut mesh is placed on the bottom of the inner cavity of the concave plate 31 The fixing plate 32 is mounted on the fixing plate 32, and the driving motor 33 is started to drive the driving rod 34 and the three sets of driving gears 35 to rotate synchronously. The rotation of the driving gear 35 causes the three sets of sliding gear rods 37 to slide downward synchronously. The sliding of the sliding gear rod 37 drives the pressing plate 38 to slide downward, and the mesh edge is pressed down and fixed by the pressing plate 38. Subsequently, the control handles 10 on the four sides of the top of the machine body 1 are respectively rotated to drive the control screw rod 9 to rotate. The control screw rod 9 rotates inside the control block 8, thereby pulling the concave plate 31 to slide on the top of the machine body 1, thereby traction of the four sides of the mesh is achieved, the mesh is tightened, and then the connecting plate 43 is driven by starting the lifting cylinder 431. 2. The positioning motor 412 and the device box 411 slide upward synchronously as a whole, thereby causing the screen frame to slide upward so that the screen frame and the mesh are fully fitted, and then the mesh is fixed on the screen frame by gauze. When the mesh is completely fixed, it is cut with a cutter, and finally the screen frame and the mesh are taken out together, and then the position of the film on the screen is determined, and then the photosensitive glue is evenly brushed on the mesh with a fine brush, and then the screen frame and the mesh are placed in an oven for heating and fixing. After the heating and curing is completed, the screen frame is taken out and the film is attached to the mesh, and then the screen frame and the mesh are placed in a platemaking machine, and the machine is adjusted for exposure. Finally, the photosensitive glue on the pattern part is washed off with clean water.

[0061] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0062] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A screen printing plate making machine, comprising a machine body (1), wherein a placement slot (2) is provided at the center of the top of the machine body (1), and the characteristics are: The top of the machine body (1) is provided with a tensioning mechanism (3) for adjusting the tension of the mesh, and the inner cavity of the placement slot (2) is provided with a positioning mechanism (4) for fixing the mesh frame, wherein the positioning mechanism (4) comprises: A positioning assembly (41) comprises a device box (411) slidably mounted on the inner surface of the placement groove (2); a positioning motor (412) is fixedly connected to the bottom of the device box (411); one end of the output shaft of the positioning motor (412) is fixedly connected to a rotating plate (413) via a coupling; both ends of the rotating plate (413) enable a moving plate (414) to slide via a transmission assembly (5); and symmetrical positioning rollers (415) are arranged above the moving plate (414); An adjustment component (42) is arranged inside the moving plate (414) and is used to adjust the distance between the two sets of positioning rollers (415); The lifting assembly (43) is arranged at the bottom of the machine body (1) and is used to drive the device box (411) to slide on the inner surface of the placement groove (2).

2. The screen printing plate making machine according to claim 1, characterized in that: The transmission assembly (5) comprises a transmission rod (51) rotatably mounted on one end of a rotating plate (413), one end of the transmission rod (51) being rotatably connected to a transmission plate (52), and the top of the transmission plate (52) being fixedly connected to the bottom of the moving plate (414) via a slider.

3. A screen printing plate making machine according to claim 2, characterized in that: A symmetrical slide rail (6) is fixedly connected to the bottom of the inner cavity of the device box (411), and the surface of the slide rail (6) is slidably connected to the bottom of the transmission plate (52).

4. The screen printing plate making machine according to claim 1, characterized in that: The adjusting assembly (42) comprises an adjusting block (421) rotatably mounted inside the moving plate (414); one end of the adjusting block (421) is fixedly connected to an adjusting bevel gear (422); and the surface of the adjusting bevel gear (422) enables the positioning roller (415) to slide via a linkage assembly (7).

5. The screen printing plate making machine according to claim 4, characterized in that: The linkage assembly (7) comprises a linkage screw rod (71) rotatably mounted inside the moving plate (414); one end of the linkage screw rod (71) is fixedly connected to a linkage bevel gear (72); the surface of the linkage bevel gear (72) is meshed with the surface of the adjusting bevel gear (422); the surface of the linkage screw rod (71) is threadedly connected to a linkage block (73); the top of the linkage block (73) is slidably connected to the inside of the moving plate (414) via a moving rod; and the surface of the moving rod is rotationally connected to the inside of the positioning roller (415).

6. The screen printing plate making machine according to claim 1, characterized in that: The lifting assembly (43) includes a lifting cylinder (431) installed at the bottom of the body (1); the top of the lifting cylinder (431) is fixedly connected to a connecting plate (432) via a piston rod; the top of the connecting plate (432) is fixedly connected to the bottom of the device box (411); and the bottom of the inner cavity of the connecting plate (432) is fixedly connected to the bottom of the positioning motor (412).

7. The screen printing plate making machine according to claim 1, characterized in that: The tensioning mechanism (3) comprises a concave plate (31) slidably mounted on the top of the machine body (1); the bottom of the inner cavity of the concave plate (31) is fixedly connected to a fixed plate (32); the top of the concave plate (31) is fixedly connected to a driving motor (33); one end of the output shaft of the driving motor (33) is fixedly connected to a driving rod (34) via a coupling; the surface of the driving rod (34) is fixedly connected to a driving gear (35); the top of the concave plate (31) is fixedly connected to a guide tube (36); the inside of the guide tube (36) is slidably connected to a sliding gear rod (37); the surface of the sliding gear rod (37) is combined with the surface of the driving gear (35); and the bottom end of the sliding gear rod (37) is fixedly connected to a pressing plate (38).

8. The screen printing plate making machine according to claim 7, characterized in that: A control block (8) is fixedly connected to the top of the machine body (1), a control screw (9) is internally threadedly connected to the control block (8), one end of the control screw (9) is fixedly connected to a control handle (10), and the other end of the control screw (9) is rotatably connected to one side of the concave plate (31).

9. Implementing a method for making a screen printing plate as claimed in claims 1 to 8, specifically comprising the following steps: S1. Fixing the screen frame: first, place the screen frame in the placement slot (2) so that the screen frame is located on the top of the movable plate (414). Then, the adjusting block (421) is rotated to drive the adjusting bevel gear (422) to rotate. The rotation of the adjusting bevel gear (422) causes the two linkage bevel gears (72) to rotate synchronously and in opposite directions. The rotation of the linkage bevel gear (72) drives the linkage screw rod (71) to rotate. The rotation of the linkage screw rod (71) causes the linkage blocks (73), the movable rod and the positioning rollers (415) on both sides to slide synchronously to opposite sides, so that the two groups of positioning rollers (415) fit the inner surface of the screen frame, thereby achieving external support fixation of the screen frame in the front and rear directions. The two groups of positioning rollers (415) on the other side are The adjustment is performed synchronously, and then the rotating plate (413) is driven to rotate by the positioning motor (412). The rotation of the rotating plate (413) causes one end of the transmission rod (51) to rotate at one end of the rotating plate (413), and the other end of the transmission rod (51) to rotate at one side of the transmission plate (52), so that the transmission plates (52) on both sides slide synchronously to the opposite sides. The transmission plates (52) slide on the surface of the slide rail (6). The sliding of the transmission plates (52) drives the slider, the moving plate (414) and the positioning roller (415) to slide synchronously to the opposite sides, thereby causing the positioning roller (415) to roll on the inner surface of the screen frame until it reaches both sides of the inner wall of the screen frame, thereby realizing the external support fixation of the screen frame in the left and right directions. S2. Fixing the gauze: Subsequently, the cut gauze is placed on the fixing plate (32) at the bottom of the inner cavity of the concave plate (31), and the driving motor (33) is started to drive the driving rod (34) and the three sets of driving gears (35) to rotate synchronously. The rotation of the driving gear (35) causes the three sets of sliding gear rods (37) to slide downward synchronously. The sliding of the sliding gear rods (37) drives the pressing plate (38) to slide downward, and the pressing plate (38) is used to press down and fix the edge of the gauze. Subsequently, the control handles (10) on the four sides of the top of the machine body (1) are respectively rotated to drive the control screw rod (9) to rotate. The control screw rod (9) rotates inside the control block (8), thereby pulling the concave plate (31) to slide on the top of the machine body (1), thereby achieving traction on the four sides of the gauze and tightening the gauze. S3, mesh installation: by starting the lifting cylinder (431), the connecting plate (432), the positioning motor (412) and the equipment box (411) are driven to slide upward synchronously as a whole, so that the mesh frame slides upward, so that the mesh frame and the mesh are fully fitted, and then the mesh is fixed on the mesh frame by gluing. When the mesh is completely fixed, it is cut by a cutter, and finally the mesh frame and the mesh are taken out together. S4. Plate making operation: determine the position of the film on the screen, then use a fine-bristled brush to evenly brush the photosensitive glue on the mesh, then put the screen frame and the mesh into the oven for heating and fixing. After the heating and curing is completed, take out the screen frame and stick the film on the mesh, then put the screen frame and the mesh into the platemaking machine, adjust the machine for exposure operation, and finally, use clean water to clean off the photosensitive glue on the pattern part.

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