Automatic plate changing mechanism of screen printing machine

Abstract

The utility model relates to a silk -screen printing equipment especially relates to a screen printing machine automatic change edition mechanism, it includes flying head adjusting motor, side gauge adjusting motor and side gauge adjusting motor, flying head adjusting motor drive paper -in flying head moves back and forth and adjusts, paper -in flying head links paper supply unit and paper feeding unit, the paper supply unit includes paper supply side gauge and paper supply platform, paper supply platform elevating arrangement, side gauge adjusting motor drives paper supply side gauge left and right movement adjustment, side gauge adjusting motor drives side gauge square left and right movement adjustment, the side gauge square is located in the paper outlet end of paper feeding unit, side gauge adjusting motor side gauge adjusting motor and flying head adjusting motor all with controller control connection, by controller according to the size control corresponding adjusting motor action, adjust, convenient operation.

Description

Technical Field

[0001] This utility model relates to screen printing equipment, and in particular to an automatic plate changing mechanism for a screen printing machine. Background Technology

[0002] Most screen printing is sheet-fed printing, and the paper size is not fixed during production. When changing paper sizes according to production tasks, the positioning of the printing equipment needs to be readjusted. The positions that need adjustment include (the front and rear position of the feeder head, the left and right positions of the front guide rails of the feeder, and the position of the front guide rails of the main unit). In the traditional mode, this is a manual adjustment mode, and the three are not related, so they need to be adjusted separately according to the paper's movement. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide an automatic plate changing mechanism for a screen printing machine, wherein the controller controls the corresponding adjustment motor to adjust according to the paper size, and the operation is convenient.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This automatic plate changing mechanism for a screen printing machine includes a controller, and further includes a feeder head adjusting motor, a guide rail adjusting motor, and a side guide rail adjusting motor. The feeder head adjusting motor drives the paper feeder head to move back and forth for adjustment. The paper feeder head connects to the paper feeding unit and the paper delivery unit. The paper feeding unit includes a paper feeding guide rail and a paper feeding platform. The paper feeding platform is vertically adjustable. The guide rail adjusting motor drives the paper feeding guide rail to move left and right for adjustment. The side guide rail adjusting motor drives the side guide rail to move left and right for adjustment. The side guide rail is configured at the paper output end of the paper delivery unit. The side guide rail adjusting motor, the guide rail adjusting motor, and the feeder head adjusting motor are all connected to the controller.

[0005] In this scheme, the controller sends adjustment signals to the corresponding adjustment motors according to the paper size. The feeder head adjustment motor drives the paper feed feeder head to move back and forth, the guide rail adjustment motor drives the paper feed guide rail to move left and right, and the side guide rail adjustment motor drives the side guide rail to move left and right.

[0006] Preferably, the feeder head adjusting motor is driven by a first lead screw, which is threadedly engaged with a nut. The nut is connected to the paper feed feeder head, and the first lead screw extends in the front-to-back direction.

[0007] In this design, the feeder head adjusting motor drives the first lead screw to rotate, and the nut drives the paper feed feeder head to move back and forth.

[0008] Preferably, the guide adjustment motor is driven by a second lead screw, which is threadedly engaged with a slide block. The slide block is connected to the paper feed guide, and the second lead screw extends in the left-right direction.

[0009] In this scheme, the guide adjustment motor drives the second lead screw to rotate, and the slide moves the paper feeding guide left and right.

[0010] Preferably, the paper feeding unit further includes a frame, which is height-adjustable, and a platform adjustment motor is provided on the frame. The platform adjustment motor drives the paper feeding platform to move left and right for adjustment, and the platform adjustment motor is connected to the controller.

[0011] In this solution, the table adjustment motor drives the paper feeding table to move left and right according to the adjustment signal sent by the controller, eliminating the need for manual adjustment.

[0012] Preferably, the table adjustment motor is connected to a worm gear, the worm gear meshes with a worm wheel, the worm wheel is connected to an adjustment rod, one end of the adjustment rod is rotatably mounted on the frame, the other end of the adjustment rod is threadedly fitted with an adjustment seat, the adjustment seat is connected to the paper feeding table, the adjustment rod extends in the left-right direction, and the worm gear extends in the front-back direction.

[0013] In this design, the platform adjustment motor drives the adjustment rod to rotate via a worm gear, ensuring a sufficiently compact structure in the left-right direction.

[0014] Preferably, the side gauge includes a body, and the side gauge adjustment motor is driven and connected to a third lead screw, which is threadedly engaged with the body.

[0015] In this scheme, the side gauge adjustment motor drives the side gauge to move left and right according to the adjustment signal, without the need for manual adjustment.

[0016] Preferably, the side gauge further includes a pull gauge plate. The main body is provided with a rotating shaft and a sliding rod. A rotary air valve and an end face cam are sleeved on the rotating shaft. The rotating shaft drives the rotary air valve and the end face cam to rotate. The pull gauge plate is provided with a group of small holes that cooperate with the rotary air valve. A sliding seat is sleeved on the sliding rod. The main body is provided with a moving groove for the pull gauge plate to move. The moving groove extends in the left and right direction. The pull gauge plate is connected to the sliding seat. The sliding seat is connected to a cam ball that cooperates with the end face cam.

[0017] In this scheme, the end face cam drives the cam ball to move the sliding seat and the pull gauge plate to move left and right. When the pull gauge plate moves to the position, the air distribution through the rotary air valve creates a downward suction force through the group of small holes, which holds the paper. When the end face cam rotates to the lower surface, the pull gauge plate returns to its original position with the paper, and the rotary air valve continues to rotate to release air and release the paper.

[0018] The beneficial effects of this utility model are as follows: the controller sends adjustment signals to the corresponding adjustment motors according to the paper size; the feeder head adjustment motor drives the paper feed feeder to move back and forth; the guide rail adjustment motor drives the paper feed guide rail to move left and right; and the side guide rail adjustment motor drives the side guide rail to move left and right. The table adjustment motor drives the paper feed table to move left and right according to the adjustment signals sent by the controller, eliminating the need for manual adjustment. The table adjustment motor drives the adjustment rod to rotate via a worm gear, ensuring a sufficiently compact structure in the left and right directions. Therefore, this utility model has substantial features and advancements compared to existing technologies. Attached Figure Description

[0019] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a three-dimensional structural diagram of the paper feeding unit in this utility model.

[0022] Figure 3 This is a front view of the paper feeding unit in this utility model.

[0023] Figure 4 This is a three-dimensional structural diagram of the paper feeding platform in this utility model.

[0024] Figure 5 This is a three-dimensional structural diagram of the platform adjustment motor of this utility model.

[0025] Figure 6 This is a front view of the side gauge in this utility model.

[0026] In the diagram: 1. Feeder head adjusting motor; 2. Paper feed feeder head; 3. Paper feeding unit; 4. Paper delivery unit; 5. Paper feed guide; 6. Paper feed platform; 7. Guide adjusting motor; 8. Side guide adjusting motor; 9. Side guide; 10. First lead screw; 11. Second lead screw; 12. Frame; 13. Platform adjusting motor; 14. Worm gear; 15. Worm wheel; 16. Adjusting rod; 17. Adjusting seat; 18. Body; 19. Third lead screw. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0030] See appendix Figure 1-6 An automatic plate changing mechanism for a screen printing machine, as described in this embodiment, includes a controller, and further includes a feeder head adjusting motor 1, a guide rail adjusting motor 7, and a side guide rail adjusting motor 8. The feeder head adjusting motor 1 is driven by a first lead screw 10, which is threadedly engaged with a nut. The nut is connected to the paper feed feeder head 2. The first lead screw 10 extends in a front-to-back direction. The paper feed feeder head 2 connects to a paper feeding unit 3 and a paper delivery unit 4. The paper feeding unit 3 includes a paper feeding guide rail 5 and a paper feeding table 6. The paper feeding unit 3 also includes a frame 12. The frame 12 is height-adjustable, and a platform adjustment motor 13 is provided on the frame 12. The platform adjustment motor 13 is connected to a worm gear 14, which meshes with a worm wheel 15. The worm wheel 15 is connected to an adjustment rod 16. One end of the adjustment rod 16 is rotatably mounted on the frame 12, and the other end of the adjustment rod 16 is threadedly fitted with an adjustment seat 17. The adjustment seat 17 is connected to the paper feeding platform 6. The adjustment rod 16 extends in the left-right direction, and the worm gear 14 extends in the front-back direction. The platform adjustment motor 13 is controlled and connected to the controller.

[0031] The guide adjustment motor 7 is driven by a second lead screw 11, which is threadedly engaged with the slide block. The slide block is connected to the paper feeding guide 5, and the second lead screw 11 extends in the left-right direction.

[0032] The side guide 9 includes a body 18. The side guide adjustment motor 8 is driven by a third lead screw 19, which is threaded into the body 18. The side guide 9 is disposed at the paper output end of the paper feeding unit 4. The side guide adjustment motor 8, the guide adjustment motor 7, and the feeder head adjustment motor 1 are all controlled and connected to the controller. The side guide 9 also includes a pull guide plate. The body is provided with a rotating shaft and a sliding rod. A rotary air valve and an end face cam are sleeved on the rotating shaft. The rotating shaft drives the rotary air valve and the end face cam to rotate. The pull guide plate is provided with a group of small holes that cooperate with the rotary air valve. A sliding seat is sleeved on the sliding rod. The body is provided with a moving groove for the pull guide plate to move. The moving groove extends in the left and right direction. The pull guide plate is connected to the sliding seat. The sliding seat is connected to a cam ball that cooperates with the end face cam.

[0033] In this embodiment, when the paper size changes, the paper size is input to the controller. The controller sends adjustment signals to the feeder head adjustment motor 1, the guide adjustment motor 7, and the side guide adjustment motor 8 according to the paper size. The corresponding motors drive the connected objects to adjust to the correct position through the corresponding lead screws. When the paper reaches the printing position and the left and right differences are too large, the controller activates the table plate adjustment motor 13, and the paper feeding table 6 moves left and right to adjust to the correct position. When the paper is waiting to be printed at the paper output end of the paper feeding unit 4, the rotating shaft drives the end face cam and the rotary air valve to rotate. The end face cam drives the cam ball to drive the sliding seat, and the guide plate moves left and right. When the guide plate moves to the correct position, the air distribution through the rotary air valve creates a downward suction force through the small orifice group, which holds the paper. When the end face cam rotates to the lower position, the guide plate returns to its original position with the paper, and the rotary air valve continues to rotate to release air and release the paper. The side guide 9 is a mature technology.

[0034] Among them, the paper feeder head 2 moves back and forth to ensure reliable paper suction; the paper feeding platform 6 limits the adjustment range of the paper feeding guide 5. When the left and right difference is small, only the paper feeding guide 5 is adjusted to position the paper on the paper feeding platform 6 in the left and right direction. When the left and right difference is large, the paper feeding platform 6 also needs to be adjusted; the paper waits for printing at the paper output end of the paper feeding unit 4. The side guide 9 positions the paper once before printing. A positioning plate can be set on the main body to align the paper. The paper feeding unit 4 is a mature technology; the worm gear 14 extends in the front and back direction, so that the motor is arranged in the front and back direction. The frame 12 maintains the original small gap with the two side frames. The four corners of the frame 12 are driven by chains to lift and lower. The chains are driven by motors. This is a mature technology.

[0035] The above description represents the preferred embodiment of this utility model. It should be noted that the scope of protection of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these can also be considered as part of the scope of protection of this utility model.

Claims

1. An automatic plate changing mechanism for a screen printing machine, comprising a controller, characterized in that: Also includes The feeder head adjustment motor (1) drives the paper feeder head (2) to move back and forth for adjustment. The paper feeder head (2) is connected to the paper feeding unit (3) and the paper delivery unit (4). The paper feeding unit (3) includes a paper feeding guide (5) and a paper feeding platform (6). The paper feeding platform (6) is raised and lowered. The guide rail adjustment motor (7) drives the paper feed guide rail (5) to move left and right for adjustment; The side gauge adjustment motor (8) drives the side gauge (9) to move left and right for adjustment. The side gauge (9) is located at the paper output end of the paper feeding unit (4). The side gauge adjustment motor (8), the guide gauge adjustment motor (7) and the feeder head adjustment motor (1) are all connected to the controller.

2. The automatic plate changing mechanism for a screen printing machine as described in claim 1, characterized in that: The feeder head adjusting motor (1) is connected to a first lead screw (10), which is threadedly engaged with a nut. The nut is connected to the paper feed feeder head (2), and the first lead screw (10) extends in the front-back direction.

3. The automatic plate changing mechanism for a screen printing machine as described in claim 1, characterized in that: The guide adjustment motor (7) is connected to a second lead screw (11), which is threadedly engaged with the slide block. The slide block is connected to the paper feed guide (5), and the second lead screw (11) extends in the left-right direction.

4. The automatic plate changing mechanism for a screen printing machine as described in claim 1, characterized in that: The paper feeding unit (3) also includes a frame (12), which is raised and lowered. A table adjustment motor (13) is provided on the frame (12). The table adjustment motor (13) drives the paper feeding table (6) to move left and right for adjustment. The table adjustment motor (13) is connected to the controller.

5. The automatic plate changing mechanism for a screen printing machine as described in claim 4, characterized in that: The table adjustment motor (13) is connected to a worm gear (14), which meshes with a worm wheel (15). The worm wheel (15) is connected to an adjustment rod (16). One end of the adjustment rod (16) is rotatably mounted on the frame (12), and the other end of the adjustment rod (16) is threaded with an adjustment seat (17). The adjustment seat (17) is connected to the paper feeding table (6). The adjustment rod (16) extends in the left-right direction, and the worm gear (14) extends in the front-back direction.

6. The automatic plate changing mechanism for a screen printing machine as described in claim 1, characterized in that: The side gauge (9) includes a body (18), and the side gauge adjustment motor (8) is connected to a third lead screw (19), which is threadedly engaged with the body (18).

7. The automatic plate changing mechanism for a screen printing machine as described in claim 6, characterized in that: The side guide (9) also includes a guide plate, and the main body is provided with A rotating shaft is fitted with a rotary air valve and an end face cam. The rotating shaft drives the rotary air valve and the end face cam to rotate. The pull gauge plate is provided with a group of small holes that cooperate with the rotary air valve. A sliding rod is fitted with a sliding seat. The main body is provided with a moving groove for the pull gauge plate to move. The moving groove extends in the left and right direction. The pull gauge plate is connected to the sliding seat. The sliding seat is connected with a cam ball that cooperates with the end face cam.

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