Positioning mechanism and positioning method of printed matter of screen printing machine

Abstract

The invention relates to an alignment mechanism and an alignment method for printed materials of a screen printing machine, comprising a frame structure, a lifting device, a conveying device and a table conveying device; the device is characterized in that it also comprises a front supporting platform, a rear supporting platform, a front alignment structure and a rear alignment structure, wherein the front supporting platform and the rear supporting platform are respectively mounted on the frame structure, the front supporting platform is located at the front side of the conveying device, and the rear supporting platform is located at the rear side of the conveying device, the front alignment structure comprises a front driving device, a first front limiting platform, two or more second front limiting platforms, two or more front limiting blocks and two or more front rollers; the rear alignment structure comprises a rear driving device, a first rear limiting platform, one or more second rear limiting platforms, one or more rear limiting blocks and one or more rear rollers; the device has the advantages of accurate alignment of printed materials, high printing efficiency, reduced labor costs and good consistency of printed materials.

Description

Technical Field

[0001] The invention relates to a positioning mechanism and a positioning method for printed matter of a screen printing machine. Background Art

[0002] The existing alignment mechanism of the screen printing machine includes a frame, a lifting device and a conveying device; the lifting device is installed on the frame, and the conveying device is installed on the lifting device. When in use, when the shape of the printed matter is not square or irregular, the printed matter will be greatly offset during the transportation process, and the position of the printed matter is inaccurate and difficult to align, requiring a large amount of manpower for manual alignment, resulting in low printing efficiency, high labor costs, and poor consistency of the printed matter. There are also some screen printing machines whose alignment mechanisms include a frame, a lifting device, a video alignment structure and a conveying device. Although the printed matter can be aligned, the printed matter will be greatly offset during the transportation process, and it is difficult to align it effectively. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a screen printing machine printed matter alignment mechanism and alignment method, the printed matter is accurately aligned, the printing efficiency is high, the labor cost is reduced, and the consistency of the printed matter is good.

[0004] In order to achieve the above-mentioned object, the technical scheme of the alignment mechanism of the printed matter of the screen printing machine of the present invention is realized as follows, which includes a frame structure, a lifting device, a conveying device and a table conveying device; the lifting device and the table conveying device are respectively installed on the frame structure, and the conveying device is installed on the lifting device; it is characterized in that it also includes:

[0005] A front supporting platform and a rear supporting platform; the front supporting platform and the rear supporting platform are respectively installed on the frame structure, the front supporting platform is located at the front side of the conveying device, and the rear supporting platform is located at the rear side of the conveying device, and the heights of the front supporting platform and the rear supporting platform are consistent; the lifting device drives the conveying device to move up and down so that the conveying device is located above the front supporting platform and the rear supporting platform or the conveying device is located below the front supporting platform and the rear supporting platform;

[0006] The front alignment structure and the rear alignment structure; the front alignment structure includes a front drive device, a first front limit platform, two or more second front limit platforms, two or more front limit blocks and two or more front rollers; the first front limit platform is installed on the front support platform and can be moved forward and backward in a directional manner, the front drive device is installed on the front support platform, the front drive device drives the first front limit platform to move forward and backward and position, the second front limit platform is installed on the first front limit platform and can be moved left and right in a directional manner and positioned on the first front limit platform, the front limit block is installed on the corresponding second front limit platform and can be moved forward and backward and positioned, the front roller is installed on the corresponding front limit The rear alignment structure includes a rear drive device, a first rear limit platform, one or more second rear limit platforms, one or more rear limit blocks and one or more rear rollers; the first rear limit platform is mounted on the rear support platform and can be moved forward and backward in a directional manner, the rear drive device is mounted on the rear support platform, the rear drive device drives the first rear limit platform to move forward and backward and position, the second rear limit platforms are all mounted on the first rear limit platform and can be moved left and right in a directional manner and positioned on the first rear limit platform, the rear limit blocks are mounted on the corresponding second rear limit platforms and can be moved forward and backward and positioned on the second rear limit platforms, and the rear rollers are mounted on the rear limit blocks.

[0007] In the present technical solution, the frame structure includes a frame and a movable stand device of an alignment mechanism arranged on the frame, and a video alignment display device is also installed on the frame; the lifting device is installed on the frame, and the front support platform and the rear support platform are respectively installed on the movable stand device of the alignment mechanism and are respectively located on the front and rear sides of the conveying device; the front support platform includes a front "L"-shaped support plate, two or more front guide rails and a front support member; the front "L"-shaped support plate is installed on the movable stand device of the alignment mechanism and is located on the front side of the conveying device, the front guide rail is installed on the horizontal plane of the front "L"-shaped support plate, and the first front limit platform is installed on the front guide rail and can move along the front guide The rail moves back and forth, and the front supporting member is installed on the top of the longitudinal surface of the front "L"-shaped pallet; the rear supporting platform includes a rear "L"-shaped pallet, two or more rear guide rails and a rear supporting member; the rear "L"-shaped pallet is installed on the moving platform device of the alignment mechanism and is located on the rear side of the conveying device, the rear guide rail is installed on the horizontal surface of the rear "L"-shaped pallet, the first rear limiting platform is installed on the rear guide rail and can move back and forth along the rear guide rail, the rear longitudinal plate is installed on the front side of the rear transverse plate, the rear supporting member is installed on the top of the longitudinal surface of the rear "L"-shaped pallet, and the conveying device is located between the longitudinal surface of the front "L"-shaped pallet and the longitudinal surface of the rear "L"-shaped pallet.

[0008] In the present technical solution, a first front slide groove from left to right is provided on the first front limit platform, and a first front protrusion is provided at the bottom of the second front limit platform. The first front protrusions are arranged in the first front slide groove and can be moved left and right and positioned; a second front slide groove from front to back is provided on the second front limit platform, and a second front protrusion is provided at the bottom of the front limit block. The second front protrusions are arranged in the corresponding second front slide groove and can be moved forward and backward and positioned.

[0009] In the present technical solution, a first rear slide groove from left to right is provided on the first rear limit platform, and a first rear protrusion is provided at the bottom of the second rear limit platform. The protrusions are all provided in the first rear slide groove and can be moved left and right and positioned; a second rear slide groove from front to back is provided on the second rear limit platform, and a second rear protrusion is provided at the bottom of the rear limit block. The second rear protrusion is provided in the corresponding second rear slide groove and can be moved forward and backward and positioned.

[0010] In the technical solution, the frame further includes a first limiting device and a second limiting device, and the first limiting device and the second limiting device are respectively installed on the frame and located above the conveying device.

[0011] In order to achieve the above-mentioned object, the technical solution of the alignment method of the alignment mechanism of the screen printing machine printed matter of the present invention is realized as follows, and its characteristics are as follows:

[0012] Step 1: The printed material of the screen printing machine enters the alignment station from the feeding station, and the printed material is conveyed between the front alignment structure and the rear alignment structure through the conveyor. After the sensor on the frame structure senses the printed material, it controls the conveyor to stop conveying;

[0013] Step 2: The lifting device drives the conveying device to descend so that the printed matter is supported on the front supporting platform and the rear supporting platform;

[0014] Step 3: Start the front drive device to drive the first front limit table to move backward, start the rear drive device to drive the first rear limit table to move forward, and the first limit table and the first rear limit table are close to the front and rear sides of the printed matter respectively;

[0015] Step 4: According to the shape and size of the printed matter, adjust the relative positions of the second front limit platform, the front limit block, the second rear limit platform and the rear limit block respectively, so that the front roller and the rear roller clamp the printed matter respectively and position it;

[0016] Step 5: Start the front driving device to drive the first front limit table to move forward, and start the rear driving device to drive the first rear limit table to move backward to release the printed matter;

[0017] Step 6: The table conveyor device rises so that the printed matter is supported on the table conveyor device, and the table conveyor device conveys the printed matter to the next workstation.

[0018] In the present technical scheme, it also includes a video alignment display device, the frame structure includes a frame and a movable stand device of an alignment mechanism arranged on the frame; in the fourth step of the alignment method, after the front roller and the rear roller respectively clamp the printed matter and position it, the video alignment display device is started to perform visual alignment on the printed matter, the video alignment display device controls the movement of the movable stand device of the alignment mechanism, the movement of the movable stand device of the alignment mechanism drives the front supporting platform and the rear supporting platform to move synchronously, the front supporting platform and the rear supporting platform move synchronously, thereby driving the front roller and the rear roller to move synchronously, the front roller and the rear roller drive the printed matter to adjust the relative position, thereby performing secondary alignment and positioning.

[0019] Compared with the prior art, the advantages of the present invention are: accurate alignment of printed matter, high printing efficiency, reduced labor costs, and good consistency of printed matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the mobile stand device, the front supporting platform, the rear supporting platform, the front alignment structure and the rear alignment structure of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the other side of the mobile stand device, the front supporting platform, the rear supporting platform, the front alignment structure and the rear alignment structure of the present invention;

[0023] Figure 4 yes Figure 2 A top view of

[0024] Figure 5 yes Figure 4 AA section view;

[0025] Figure 6 yes Figure 1 Stereoscopic image without the visual alignment device;

[0026] Figure 7 yes Figure 6 A perspective view of the other side. DETAILED DESCRIPTION

[0027] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] In the description of the present invention, the directions or positional relationships indicated by the terms "front", "rear", "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention rather than requiring that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, so that the internal connection of two elements or the interaction relationship between two elements can be achieved. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figures 1 to 7 As shown, it is a alignment mechanism for printed matter of a screen printing machine, comprising a frame structure 1, a lifting device 3, a front supporting platform 2, a rear supporting platform 8, a table conveying device 13, a front alignment structure 4, a rear alignment structure 9 and a conveying device 5; the lifting device 3 and the table conveying device 13 are respectively installed on the frame structure 1, and the conveying device 5 is installed on the lifting device 3;

[0031] The front supporting platform 2 and the rear supporting platform 8 are respectively installed on the frame structure 1, the front supporting platform 2 is located at the front side of the conveying device 5, and the rear supporting platform 8 is located at the rear side of the conveying device 5, and the heights of the front supporting platform 2 and the rear supporting platform 8 are consistent; the lifting device 3 drives the conveying device 5 to move up and down so that the conveying device 5 is located above the front supporting platform 2 and the rear supporting platform 8 or the conveying device 5 is located below the front supporting platform 2 and the rear supporting platform 8;

[0032] The front alignment structure 4 includes a front drive device 41, a first front limit platform 42, three second front limit platforms 43, three front limit blocks 44 and three front rollers 45; the first front limit platform 42 is installed on the front support platform 2 and can be moved forward and backward in a directional manner, the front drive device 41 is installed on the front support platform 2, and the front drive device 41 drives the first front limit platform 42 to move forward and backward and position, and the second front limit platforms 43 are all installed on the first front limit platform 42 and can be fixed on the first front limit platform 42 The front limit block 44 is installed on the corresponding second front limit platform 43 and can be moved forward and backward and positioned. The front roller 45 is installed on the corresponding front limit block 44; the rear alignment structure 9 includes a rear drive device 91, a first rear limit platform 92, three second rear limit platforms 93, three rear limit blocks 94 and three rear rollers 95; the first rear limit platform 92 is installed on the rear support platform 8 and can be moved forward and backward in a directional manner, and the rear drive device 91 is installed on the rear support platform 8 The rear driving device 91 drives the first rear limit platform 92 to move forward and backward and position, the second rear limit platform 93 is installed on the first rear limit platform 92 and can be directional and positioned on the first rear limit platform 92. The rear limit block 94 is installed on the corresponding second rear limit platform 93 and can be moved forward and backward and positioned on the second rear limit platform 93. The rear roller 95 is installed on the rear limit block 94; the second front limit platform 43, the front limit block 44 and the front roller 45 can all be two or three , four or more, the second rear limit platform 93, the rear limit block 94 and the rear roller 95 can all be one, three, four or more, depending on the size and shape of the actual printed matter, so as to achieve at least three-point positioning and accurate alignment; the second front limit platform 43, the front limit block 44 and the front roller 45 can also be one, two, three, four or more, the second rear limit platform 93, the rear limit block 94 and the rear roller 95 can also all be one, three, four or more.

[0033] During operation, the lifting device 3 drives the conveying device 5 to descend so that the printed matter is supported on the front supporting platform 2 and the rear supporting platform 8; the front driving device 41 is started to drive the first front limit platform 42 to move backward, and the rear driving device 91 is started to drive the first rear limit platform 92 to move forward, and the first limit platform 42 and the first rear limit platform 92 are respectively close to the front and rear sides of the printed matter; according to the shape and size of the printed matter, the relative positions of the second front limit platform 43, the front limit block 44, the second rear limit platform 93 and the rear limit block 94 are respectively adjusted, so that the front roller 44 and the rear roller 94 respectively clamp the printed matter and position it.

[0034] In this embodiment, the frame structure 1 includes a frame 11 and a movable stand device 12 of an alignment mechanism arranged on the frame 11, and a video alignment display device 7 is also installed on the frame 11; the lifting device 3 is installed on the frame 11, and the front support platform 2 and the rear support platform 8 are respectively installed on the movable stand device 12 of the alignment mechanism and are respectively located on the front and rear sides of the conveying device 5; the front support platform 2 includes a front "L"-shaped support plate 21, two front guide rails 22 and a front support member 24; the front "L"-shaped support plate 21 is installed on the movable stand device 12 of the alignment mechanism and is located on the front side of the conveying device 5, the front guide rail 22 is installed on the horizontal plane of the front "L"-shaped support plate 21, the first front limit platform 42 is installed on the front guide rail 22 and can move forward and backward along the front guide rail 22, and the front support member 24 is installed on the front The top of the longitudinal surface of the "L"-shaped support plate 21; the rear supporting platform 8 includes a rear "L"-shaped support plate 81, two rear guide rails 82 and a rear supporting member 84; the rear "L"-shaped support plate 81 is installed on the movable platform device 12 of the alignment mechanism and is located at the rear side of the conveying device 5, the rear guide rail 82 is installed on the horizontal plane of the rear "L"-shaped support plate 81, the first rear limiting platform 92 is installed on the rear guide rail 82 and can move forward and backward along the rear guide rail 82, the rear longitudinal plate 83 is installed on the front side of the rear transverse plate 8, the rear supporting member 84 is installed on the top of the longitudinal surface of the rear "L"-shaped support plate 81, and the conveying device 5 is located between the longitudinal surface of the front "L"-shaped support plate 23 and the longitudinal surface of the rear "L"-shaped support plate 81; the front guide rail 22 and the rear guide rail 82 can be two, three, four or more according to actual conditions.

[0035] The video alignment display device 7 is started to perform video alignment on the printed matter, and the video alignment display device 7 controls the movement of the alignment mechanism mobile stand device 1, and the alignment mechanism mobile stand device 12 moves to drive the front supporting platform 2 and the rear supporting platform 8 to move synchronously, and the front supporting platform 2 and the rear supporting platform 8 move synchronously to drive the front roller 45 and the rear roller 95 to move synchronously, and the front roller 45 and the rear roller 95 move to drive the printed matter to adjust the relative position to perform secondary positioning.

[0036] The front supporting member 24 and the rear supporting member 84 can be rubber pads, rubber discs and the like. The printed matter is placed on the front supporting member 24 to reduce wear. Since the contact area between the printed matter and the front supporting member 24 and the rear supporting member 84 is small, the friction is small, making it easier to adjust the relative position.

[0037] In this embodiment, a first front slide groove 421 is provided from left to right on the first front limit platform 42, and a first front protrusion is provided at the bottom of the second front limit platform 43. The first front protrusion is provided in the first front slide groove 421 and can be moved left and right and positioned; a second front slide groove 431 is provided from front to back on the second front limit platform 43, and a second front protrusion is provided at the bottom of the front limit block 44. The second front protrusion is provided in the corresponding second front slide groove 431 and can be moved back and forth and positioned.

[0038] In this embodiment, a first rear slide groove 921 is provided from left to right on the first rear limit platform 92, and a first rear protrusion is provided at the bottom of the second rear limit platform 93. The protrusions are all provided in the first rear slide groove 921 and can be moved left and right and positioned; a second rear slide groove 931 is provided from front to back on the second rear limit platform 93, and a second rear protrusion is provided at the bottom of the rear limit block 94. The second rear protrusion is provided in the corresponding second rear slide groove 931 and can be moved forward and backward and positioned.

[0039] In this embodiment, the frame 11 further includes a first limiting device 6 and a second limiting device 10 , and the first limiting device 6 and the second limiting device 10 are respectively mounted on the frame 11 and located above the conveying device 5 .

[0040] In this embodiment, the alignment method of the alignment mechanism of the screen printing machine is as follows:

[0041] Step 1: The printed material of the screen printing machine enters the alignment station from the feeding station, and the printed material is transmitted to between the front alignment structure 4 and the rear alignment structure 9 through the conveyor 5. After the sensor on the frame structure 1 senses the printed material, it controls the conveyor 5 to stop conveying;

[0042] Step 2: The lifting device 3 drives the conveying device 5 to descend so that the printed matter is supported on the front supporting platform 2 and the rear supporting platform 8;

[0043] Step 3: Start the front drive device 41 to drive the first front limit platform 42 to move backward, start the rear drive device 91 to drive the first rear limit platform 92 to move forward, and the first limit platform 42 and the first rear limit platform 92 are close to the front and rear sides of the printed matter respectively;

[0044] Step 4: According to the shape and size of the printed matter, the relative positions of the second front limit platform 43, the front limit block 44, the second rear limit platform 93 and the rear limit block 94 are adjusted respectively, so that the front roller 44 and the rear roller 94 respectively clamp the printed matter and align and position it;

[0045] Step 5: Start the front driving device 41 to drive the first front limiting platform 42 to move forward, and start the rear driving device 91 to drive the first rear limiting platform 92 to move backward to release the printed matter;

[0046] Step 6: The table conveyor 13 rises so that the printed matter is supported on the table conveyor 12, and the table conveyor 13 conveys the printed matter to the next workstation.

[0047] In this embodiment, it also includes a video alignment display device 7, the frame structure 1 includes a frame 11 and an alignment mechanism moving stand device 12 arranged on the frame 11; in the fourth step of the alignment method, after the front roller 44 and the rear roller 94 respectively clamp the printed matter and position it, the video alignment display device 7 is started to perform visual alignment on the printed matter, the video alignment display device 7 controls the alignment mechanism moving stand device 12 to move, the alignment mechanism moving stand device 12 moves to drive the front supporting platform 2 and the rear supporting platform 8 to move synchronously, the front supporting platform 2 and the rear supporting platform 8 move synchronously to drive the front roller 45 and the rear roller 95 to move synchronously, the front roller 45 and the rear roller 95 drive the printed matter to adjust the relative position to perform secondary alignment and positioning.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and deformations of these embodiments without departing from the principles and purposes of the present invention still fall within the scope of protection of the present invention.

Claims

1. A screen printing machine printing material alignment mechanism, comprising a frame structure (1), a lifting device (3), a conveying device (5) and a table conveying device (13); the lifting device (3) and the table conveying device (13) are respectively mounted on the frame structure (1), and the conveying device (5) is mounted on the lifting device (3); characterized in that Also includes: The front support platform (2) and the rear support platform (8); the frame structure (1) comprises a frame (11) and a positioning mechanism movable platform device (12) arranged on the frame (11), and a video positioning display device (7) is also installed on the frame (11); the lifting device (3) is installed on the frame (11), and the front support platform (2) and the rear support platform (8) are respectively installed on the positioning mechanism movable platform device (12) and are respectively located on the front and rear sides of the conveying device (5); the front support platform (2) is located at the front side of the conveying device (5), the rear support platform (8) is located at the rear side of the conveying device (5), and the front support platform (2) and the rear support platform (8) are at the same height; the lifting device (3) drives the conveying device (5) to move up and down so that the conveying device (5) is located above the front support platform (2) and the rear support platform (8) or the conveying device (5) is located below the front support platform (2) and the rear support platform (8); the front support platform (2) includes a front "L"-shaped support plate (2 1), two or more front guide rails (22) and a front support member (24); the front "L"-shaped support plate (21) is mounted on the positioning mechanism moving platform device (12) and is located on the front side of the conveying device (5), the front guide rail (22) is mounted on the horizontal surface of the front "L"-shaped support plate (21), and the front support member (24) is mounted on the top of the longitudinal surface of the front "L"-shaped support plate (21); the rear support platform (8) includes a rear "L"-shaped support plate (81), two or more rear guide rails (82) and a rear supporting member (84); the rear "L"-shaped support plate (81) is mounted on the positioning mechanism moving platform device (12) and is located at the rear side of the conveying device (5); the rear guide rail (82) is mounted on the horizontal plane of the rear "L"-shaped support plate (81); the rear supporting member (84) is mounted on the top of the longitudinal surface of the rear "L"-shaped support plate (81); and the conveying device (5) is located between the longitudinal surface of the front "L"-shaped support plate (21) and the longitudinal surface of the rear "L"-shaped support plate (81); A front alignment structure (4) and a rear alignment structure (9); the front alignment structure (4) comprises a front drive device (41), a first front limit platform (42), two or more second front limit platforms (43), two or more front limit blocks (44) and two or more front rollers (45); the first front limit platform (42) is mounted on a front guide rail (22) and can move forward and backward along the front guide rail (22); the front drive device (41) is mounted on a front support platform (2); the front drive device (41) drives the first front limit platform (42) to move forward and backward and position; the first front limit platform (42) is provided with a first A front slide groove (421) is provided at the bottom of the second front limit platform (43), and the first front protrusion is provided in the first front slide groove (421) and can be moved left and right and positioned; a second front slide groove (431) from front to back is provided on the second front limit platform (43), and a second front protrusion is provided at the bottom of the front limit block (44), and the second front protrusion is provided in the corresponding second front slide groove (431) and can be moved forward and backward and positioned; the front limit block (44) is installed on the corresponding second front limit platform (43) and can be moved forward and backward and positioned, and the front roller (45) is installed on the corresponding front limit block ( 44); the rear alignment structure (9) comprises a rear drive device (91), a first rear limit platform (92), one or more second rear limit platforms (93), one or more rear limit blocks (94) and one or more rear rollers (95); the first rear limit platform (92) is mounted on the rear guide rail (82) and can move forward and backward along the rear guide rail (82); the rear drive device (91) is mounted on the rear support platform (8); the rear drive device (91) drives the first rear limit platform (92) to move forward and backward and position; the first rear limit platform (92) is provided with a first rear slide groove (921) from left to right; The bottom of the two rear limit platforms (93) are each provided with a first rear protrusion, the first rear protrusion is each provided in a first rear slide groove (921) and can be moved leftward and rightward and positioned; the second rear limit platform (93) is provided with a second rear slide groove (931) from front to rear, and the bottom of the rear limit block (94) is provided with a second rear protrusion, the second rear protrusion is provided in a corresponding second rear slide groove (931) and can be moved forward and backward and positioned; the rear limit block (94) is mounted on the corresponding second rear limit platform (93) and can be moved forward and backward and positioned on the second rear limit platform (93), and the rear roller (95) is mounted on the rear limit block (94).

2. The alignment mechanism for printed matter of a screen printer according to claim 1, characterized in that It also comprises a first limiting device (6) and a second limiting device (10), wherein the first limiting device (6) and the second limiting device (10) are respectively mounted on the frame (11) and are located above the conveying device (5).

3. The alignment method of the alignment mechanism of the printed matter of the screen printer according to claim 1, characterized in that: It also includes a video alignment display device (7), wherein the alignment method is as follows: Step 1: The printed material of the screen printing machine enters the alignment station from the feeding station, and the printed material is transmitted to between the front alignment structure (4) and the rear alignment structure (9) through the conveying device (5). After the sensor on the frame structure (1) senses the printed material, it controls the conveying device (5) to stop conveying; Step 2: The lifting device (3) drives the conveying device (5) to descend so that the printed matter is supported on the front supporting platform (2) and the rear supporting platform (8); Step 3: Start the front drive device (41) to drive the first front limit platform (42) to move backward, start the rear drive device (91) to drive the first rear limit platform (92) to move forward, and the first front limit platform (42) and the first rear limit platform (92) are respectively close to the front and rear sides of the printed matter; Step 4: According to the shape and size of the printed matter, the relative positions of the second front limit platform (43), the front limit block (44), the second rear limit platform (93) and the rear limit block (94) are adjusted respectively, so that the front roller (45) and the rear roller (95) respectively clamp the printed matter for alignment; after the front roller (45) and the rear roller (95) respectively clamp the printed matter and position it, the visual alignment display device (7) is started to perform visual alignment on the printed matter, the visual alignment display device (7) controls the alignment mechanism moving stand device (12) to move, the alignment mechanism moving stand device (12) moves to drive the front support platform (2) and the rear support platform (8) to move synchronously, the front support platform (2) and the rear support platform (8) move synchronously to drive the front roller (45) and the rear roller (95) to move synchronously, the front roller (45) and the rear roller (95) drive the printed matter to adjust the relative position to perform secondary alignment and position it; Step 5: Start the front drive device (41) to drive the first front limit platform (42) to move forward, and start the rear drive device (91) to drive the first rear limit platform (92) to move backward, thereby releasing the printed matter; Step 6: The table conveyor (13) rises so that the printed matter is supported on the table conveyor (13), and the table conveyor (13) conveys the printed matter to the next workstation.

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