CN113172992A

CN113172992A - Screen adjusting mechanism and printing machine

Info

Publication number: CN113172992A
Application number: CN202110475632.3A
Authority: CN
Inventors: 左国军; 胡永涛; 王明飞; 王刘佳
Original assignee: Changzhou Jiejiachuang Intelligent Equipment Co ltd
Current assignee: Changzhou Jiejiachuang Intelligent Equipment Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-07-27

Abstract

The invention provides a screen adjusting mechanism and a printing machine, wherein the screen adjusting mechanism comprises: a base; the guide structure is arranged on the base; the mounting plate is movably connected with the base through a guide structure; and the driving device at least comprises a stator end and a rotor end, the stator end is connected with the base, the rotor end is connected with the mounting plate, and the driving device drives the mounting plate to do arc motion along the guide structure. The driving device directly drives the mounting plate to adjust the angle, so that the transmission stage number is reduced, the error of angle adjustment of the mounting plate is reduced, the mounting station for mounting other structures is omitted, the whole weight of the screen adjusting mechanism is further reduced, the gravity center deviation of the screen adjusting mechanism can be effectively prevented, and the stability of angle adjustment is improved.

Description

Screen adjusting mechanism and printing machine

Technical Field

The invention relates to the technical field of printing machines, in particular to a screen adjusting mechanism and a printing machine.

Background

At present, each photovoltaic manufacturer mostly adopts a screen printing method to prepare electrodes and electric fields for a battery plate, so that the battery plate and a screen printing screen plate need to be matched and aligned, the matching and aligning precision is high, and the operation cannot be basically completed by manpower.

Adopt the mode of turning into linear electric motor's motion into the motion of arc type guide rail among the correlation technique to realize angular adjustment, need the cooperation of a plurality of spare parts to realize, easily increase angle regulation's error, need set up arc guide rail installation position and linear electric motor installation position simultaneously, and then lead to rotating the installation plate size on the adjustment mechanism and increase, head gravity increases, easily causes to rotate adjustment mechanism focus skew, influence the stability of rotating adjustment mechanism horizontal direction, and then influence battery piece printing effect.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

To this end, the invention provides a screen adjusting mechanism in a first aspect.

In a second aspect, the present invention provides a printing press.

The present invention provides, in a first aspect, a screen adjusting mechanism, including: a base; the guide structure is arranged on the base; the mounting plate is movably connected with the base through a guide structure; and the driving device at least comprises a stator end and a rotor end, the stator end is connected with the base, the rotor end is connected with the mounting plate, and the driving device drives the mounting plate to do arc motion along the guide structure.

The screen adjusting mechanism provided by the invention comprises a base, a guide structure, an installation plate and a driving device. Wherein, the base is as half tone guiding mechanism's load-bearing structure, can provide the installation station for guide structure. In addition, the base can also be installed on other adjustment mechanisms and cooperate with other adjustment mechanisms to adjust the position of the screen plate together. The guide structure can cooperate with the driving device to ensure that the mounting plate can rotate, thereby ensuring accurate alignment of the screen printing plate and the battery piece. The mounting panel can provide the installation station for the half tone, ensures that the half tone can be accurate and swift installation to improve the installation accuracy of half tone, further improve the half tone and with the accurate counterpoint of battery piece. The driving device is used as a driving structure of the mounting plate and can drive the mounting plate to rotate, so that when the position of the battery piece is deviated, the mounting plate can be driven by the driving device to adjust the angle, and the quality and the efficiency of battery piece printing are improved.

On the basis, the driving device at least comprises a stator end and an actuator end. The stator end and the stator end are matched with each other to drive the mounting plate to do arc motion along the guide structure. On one hand, when the position deviation of the battery piece occurs, the mounting plate can be timely aligned and adjusted under the driving of the rotor end, so that the alignment precision of the battery piece is improved; on the other hand, the driving device directly drives the mounting plate to adjust the angle, so that the transmission stage number is reduced, the error of the angle adjustment of the mounting plate is reduced, the mounting station for mounting other structures is omitted, the overall weight of the screen adjusting mechanism is further reduced, the gravity center deviation of the screen adjusting mechanism can be effectively prevented, and the stability of the angle adjustment is improved.

According to the technical scheme of the invention, the invention can also have the following additional technical characteristics:

in the above technical solution, the driving device is an arc-shaped motor.

In the technical scheme, the driving device is an arc-shaped motor. Wherein, the arc motor can the direct drive mounting panel carry out the process of angle modulation, consequently has saved the structural connection between drive arrangement and the mounting panel, has reduced the loss of drive power on the one hand, has reduced the processing cost. On the other hand, the complex process of driving the mounting plate to adjust the angle through the linear motor in cooperation with the arc-shaped sliding rail can be avoided, and the driven connecting structure is reduced. In addition, the mode that carries out angle modulation through arc motor direct drive mounting panel can reduce the installation weight of base, further prevents that half tone guiding mechanism focus from deviating, improves the precision that half tone on the mounting panel and battery piece counterpoint.

In the technical scheme, the stator end is nested in the rotor end, a gap exists between the stator end and the rotor end, and the rotor end is matched with the stator end to drive the mounting plate to reciprocate along the guide structure.

In the technical scheme, the stator end is nested in the rotor end so as to reasonably set the positions of the stator end and the rotor end. In addition, a gap exists between the stator end and the rotor end to ensure that the relative motion of the stator end and the rotor end is smooth. When the driving device works, the rotor end and the stator end are matched and move relatively, and then the mounting plate is driven to rotate, so that the angle adjustment of the mounting plate has variability, the rotation of different angles can be carried out in the alignment process of the screen printing plate on the mounting plate and the battery piece, and the printing efficiency and the quality of the battery piece are further improved.

In above-mentioned technical scheme, guide structure includes the guide rail sliding block group, and the guide rail sliding block group includes: the arc-shaped guide rail is arranged on the base; and the sliding block is arranged on the arc-shaped guide rail and is connected with the mounting plate.

In this technical scheme, guide structure includes the guide rail slider group. The guide rail sliding block set comprises an arc-shaped guide rail and a sliding block. The arc guide rail can cooperate drive arrangement, carries out pitch arc motion's direction to the mounting panel to make the smooth rotation of carrying on of mounting panel, improved the stability that the otter board counterpointed on the mounting panel. The slider is as the connection structure between mounting panel and the arc guide rail, provides the holding power for the mounting panel. And can cooperate with the arc-shaped guide rail, so that the mounting plate is more stable in the rotating process.

In the above technical solution, the guide structure comprises a set of guide rail slider groups; or the guide structure comprises a plurality of groups of guide rail sliding block groups, and the plurality of arc-shaped guide rails are concentric.

In this technical scheme, guide structure includes a set of direction slider group or multiunit direction slider group. When the guide slide block groups are in a plurality of groups, the arc guide rails are concentric. When the volume or the weight of mounting panel are less, through the mode that sets up a set of direction slider group, can guarantee the steady rotation that rotates of mounting panel on the one hand. On the other hand, the weight of the screen adjusting mechanism can be reduced, so that the whole structure is optimized. When the volume or the weight of mounting panel are great, can provide sufficient holding power for the mounting panel through the direction slider group that sets up the multiunit to make the mounting panel can stabilize and firm rotate, further improved the counterpoint precision with the battery piece.

In any of the above technical solutions, the screen adjusting mechanism further includes: the reset point is arranged on the base; the first displacement point is arranged on the base and is positioned on one side of the reset point; the second displacement point is arranged on the base and is positioned on the other side of the reset point; the detection piece is arranged on the mounting plate, is electrically connected with the driving device and is used for being matched with the first displacement point and the second displacement point to ensure the rotation angle of the mounting plate.

In the technical scheme, the screen adjusting mechanism further comprises a reset point, a first displacement point, a second displacement point and a detection piece. The detection piece is arranged on the mounting plate, is electrically connected with the driving device and can rotate along with the mounting plate. The reset point is arranged on the base and is used for indicating that when the detection piece is located at the position, the rotor end of the driving device does not perform arc motion, namely the mounting plate is located at the original position. The first displacement point and the second displacement point are respectively arranged on two sides of the reset point and used for indicating that when the detection piece is located at the first displacement point, the rotor end of the driving device is located at the maximum displacement point on one side of arc motion relative to the stator end, namely the limit rotation angle of the mounting plate on one side. When the detection piece is located at the second displacement point, the rotor end of the driving device is located at the maximum displacement point of the other side of the arc motion relative to the stator end, namely the limit rotation angle of the mounting plate at the other side. Therefore, the rotation angle of the mounting plate can be detected through the structure, the situation that the movable terminal cannot reset due to overlarge arc motion is avoided, and the service life of the driving device is prolonged.

The specific detection process comprises the following steps: the driving device is started, the rotor end of the driving device drives the mounting plate to rotate, the detection piece is arranged on the mounting plate, therefore, the detection piece can rotate synchronously with the mounting plate, and when the detection piece moves to a first displacement point in the rotating process, the detection piece can identify that the mounting plate rotates to the maximum rotation angle relative to one side of the base. When the detection member is displaced to the second displacement point during the rotation, the detection member can recognize that the mounting plate is rotated to the maximum rotation angle with respect to the other side of the base. And then the driving device is controlled to stop rotating or to rotate in the opposite direction through the electric connection with the driving device, so that the mounting plate is prevented from being incapable of resetting. When the detection piece is displaced to the reset point, the moving terminal of the driving device does not do arc motion, and accordingly, the mounting plate is in the original position.

In the above technical solution, the screen adjusting mechanism further includes: and the precision control part is arranged on the base and the mounting plate, is electrically connected with the driving device and can be used for feeding back the position of the mounting plate to the driving device.

In the technical scheme, the screen adjusting mechanism further comprises a precision control part. The precision control part is electrically connected with the driving device, and can monitor the rotating real-time position of the mounting plate and feed back the rotating real-time position to the driving device, so that the driving device can obtain the information of the rotating position of the mounting plate. Therefore, the angle of the driving device can be adjusted according to the real-time position of the mounting plate, and the alignment precision of the upper screen plate of the mounting plate and the battery piece is further improved.

In any one of the above technical solutions, the precision control part includes a grating ruler and a reading head, one of the grating ruler and the reading head is disposed on the base, and the other is disposed on the mounting plate.

In the technical scheme, the precision control assembly comprises a grating ruler and a reading head. Wherein, grating chi sets up on the mounting panel, and the reading head sets up on the base. Through the cooperation of grating chi and reading head, ensure that drive arrangement can obtain the turned angle of mounting panel. Therefore, the driving device can accurately drive the mounting plate, so that the mounting plate can be rotated to a correct position, the accuracy of the rotation angle of the mounting plate is further improved, and the printing quality and efficiency of the battery piece are guaranteed.

Specifically, the grating ruler may be disposed on the base, or the reading head may be disposed on the mounting plate.

In the above technical solution, the screen adjusting mechanism further includes: the limiting slide way is arranged on the mounting plate, and the screen printing plate can be mounted on the mounting plate from the limiting slide way; and the positioning assembly is arranged on the mounting plate and can be used for positioning the screen printing plate.

In the technical scheme, the screen mechanism further comprises a limiting slide way and a positioning assembly. The limiting slide way is arranged on the mounting plate, can provide a mounting station for mounting the screen printing plate, and can also be matched with the positioning assembly, so that the screen printing plate can be accurately and quickly mounted on the mounting plate, and mounting and dismounting are facilitated. In addition, the curb chute has an inlet end and an outlet end. The screen plate enters the limiting slide way from the inlet end. The positioning assembly serves as a positioning structure for installing the screen printing plate, the screen printing plate can be firmly and stably installed on the installation plate, and the positioning assembly can avoid falling of the screen printing plate in the rotating process of the installation plate, so that the alignment efficiency of the screen printing plate is improved.

In the above technical solution, the positioning assembly includes: the positioning block is arranged at the end part of the limiting slide way; the microswitch is arranged at the end part of the limiting slideway; the positioning cylinder is arranged on the mounting plate and is electrically connected with the microswitch; and the positioning column is arranged on the positioning cylinder and can position the screen under the driving of the positioning cylinder.

In this technical scheme, locating component includes locating piece, micro-gap switch, location cylinder and reference column. The positioning block is arranged at the end of the limiting slide way, the installation position of the screen printing plate can be limited, the offset of the installation position of the screen printing plate is prevented, and therefore the installation accuracy of the screen printing plate is improved. The micro switch is arranged at the outlet end of the limiting slide way and is electrically connected with the positioning cylinder, and after the screen printing plate contacts the micro switch, the positioning cylinder can be started by the micro switch in time, so that the automation degree of the screen printing plate installation process is improved. The positioning cylinder is connected with the positioning column, and the positioning cylinder can be matched with the micro switch, so that the screen printing plate is firmly fixed on the mounting plate. Compared with the traditional screen mounting mode, the process has the advantages that on one hand, the stability of screen mounting can be improved, and the condition that the screen falls off in the rotating process is avoided; on the other hand, the screen printing plate is more convenient and quick to mount, and the maintenance and the replacement of the screen printing plate are facilitated.

Specifically, insert the entrance point of spacing slide with the half tone, make the half tone enter into in the spacing slide from the entrance point, after the part that the half tone is located spacing slide exit end contacts micro-gap switch, micro-gap switch provides information to the industrial computer that targets in place, the industrial computer responds to sends the cue signal after the information that targets in place, after the manual work received the cue signal, on industrial computer interactive interface, the start of manual control location cylinder, after location cylinder response order, start, drive the reference column and exert fastening force to the mounting panel, consequently, make the half tone fix in spacing slide, whole installation has been accomplished. When the screen printing plate is required to be detached, the positioning cylinder is started, the driving end of the positioning cylinder retracts, the positioning column does not apply fastening force to the screen printing plate any more, and the screen printing plate can be taken out from the limiting slide way.

In another aspect of the present invention, there is provided a printing press including: the screen adjusting mechanism in any one of the above technical solutions is used for adjusting the position of the screen.

The printing machine provided by the invention comprises: the screen adjusting mechanism in any one of the above technical solutions is used for adjusting the position of the screen, so that the screen adjusting mechanism has all the beneficial effects of the screen adjusting mechanism, and is not described in detail. In addition, the screen adjusting mechanism can ensure the printing quality and efficiency of the printer for printing the battery piece, thereby improving the yield of the battery piece finished product.

In the above technical scheme, the printing machine may further include a feeding and discharging mechanism. Wherein, go up unloading mechanism can be the conveyer belt, through placing the battery piece and realize automatic feeding's process on last unloading mechanism to improve the printing efficiency of battery piece.

In the above technical solution, the printing press may further include a price raising mechanism. The lifting mechanism is connected with the screen adjusting mechanism and can adjust the displacement of the screen in the vertical direction, so that the variability of adjusting the position of the screen is improved, and the printing precision of the battery piece is further improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic exploded view of a screen adjusting mechanism according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a screen adjusting mechanism according to an embodiment of the present invention (the mounting plate is in an initial position);

fig. 3 is a second schematic structural view of the screen adjusting mechanism according to the embodiment of the present invention (the mounting plate is in a rotating state);

fig. 4 is a schematic structural diagram (hidden mounting plate) of a screen adjusting mechanism according to an embodiment of the present invention;

fig. 5 is a second schematic structural view (hidden mounting plate) of the screen adjusting mechanism according to the embodiment of the present invention;

fig. 6 is a perspective view of a screen adjustment mechanism according to one embodiment of the present invention;

fig. 7 is a schematic exploded view of the precision control member, the detecting member, the first displacement point, the second displacement point and the reset point of the screen adjusting mechanism shown in fig. 1;

fig. 8 is one of the schematic installation diagrams of the driving device in the screen adjusting mechanism according to one embodiment of the present invention;

fig. 9 is one of schematic installation diagrams of a driving device in the screen adjusting mechanism according to the embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 9 is:

102 a base, 1022 a mounting seat, 104 a guide structure, 1042 an arc-shaped guide rail, 1044 a sliding block, 106 a mounting plate, 108 a driving device, 1082 a stator end, 1084 a rotor end, 1086 a guide member, 110 a reset point, 112 a first displacement point, 114 a second displacement point, 116 a detection member, 118 a precision control member, 1182 a grating scale, 1184 a reading head, 120 a limit slide way, 122 a positioning component, 1222 a positioning block, 1224 a micro switch, 1226 a positioning cylinder and 1228 a positioning column.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

Referring now to fig. 1-9, screen adjustment mechanisms and printing presses provided in accordance with some embodiments of the present invention are described.

As shown in fig. 1, a first embodiment of the present invention provides a screen adjusting mechanism, including: a base 102; a guide structure 104 disposed on the base 102; a mounting plate 106 movably connected to the base 102 via the guide structure 104; the driving device 108, the driving device 108 at least includes a stator end 1082 and a mover end 1084, the stator end 1082 is disposed on the base 102, and the mover end 1084 is connected to the mounting plate 106 and can drive the mounting plate 106 to move along the guiding structure 104 in an arc under the driving of the mover end 1084.

The screen adjusting mechanism of the present invention includes a base 102, a guide structure 104, a mounting plate 106, and a driving device 108. The base 102 serves as a carrying structure of the screen adjusting mechanism, and can provide an installation station for the guiding structure 104. In addition, the base 102 can be mounted to other adjustment mechanisms and cooperate with the other adjustment mechanisms to adjust the position of the screen. The guiding structure 104 can cooperate with the driving device 108 to ensure that the mounting plate 106 can rotate, thereby ensuring accurate alignment between the screen and the battery. The mounting plate 106 can provide a mounting station for the screen printing plate, so that the screen printing plate can be accurately and quickly mounted, the mounting precision of the screen printing plate is improved, and the accurate alignment between the screen printing plate and the battery piece is further improved. The driving device 108 is a driving structure of the mounting plate 106 and can drive the mounting plate 106 to rotate, so that when the position of the battery piece is deviated, the mounting plate 106 can adjust the angle through the driving of the driving device 108, and the quality and the efficiency of the battery piece printing are improved.

In the present embodiment, the drive arrangement 108 includes at least a stator end 1082 and a mover end 1084. The mover end 1084 and the stator end 1082 are engaged with each other to drive the mounting plate 106 to move along the guiding structure 104 in an arc. On one hand, when the position deviation of the battery piece occurs, the mounting plate 106 is driven by the mover end 1084 to perform alignment adjustment in time, so that the alignment precision of the battery piece is improved; on the other hand, the driving device 108 directly drives the mounting plate 106 to adjust the angle, so that the number of transmission stages is reduced, the error of angle adjustment of the mounting plate 106 is reduced, mounting stations for mounting other structures are omitted, the overall weight of the screen adjusting mechanism is further reduced, the gravity center deviation of the screen adjusting mechanism can be effectively prevented, and the stability of angle adjustment is improved.

In a specific embodiment, as shown in fig. 1, a mounting seat 1022 is disposed on the base 102, a stator end 1082 of the driving device 108 is connected to the mounting seat 1022, and a mover end 1084 of the driving device 108 is connected to the mounting plate 106.

As shown in fig. 1, a second embodiment of the present invention provides a screen adjusting mechanism, including: a base 102; a guide structure 104 disposed on the base 102; a mounting plate 106 movably connected to the base 102 via the guide structure 104; and the driving device 108, wherein the driving device 108 at least includes a stator end 1082 and a mover end 1084, the stator end 1082 is disposed on the base 102, and the mover end 1084 is connected to the mounting plate 106 and can be mutually matched with the stator end 1082 to drive the mounting plate 106 to perform an arc motion along the guiding structure 104.

Specifically, the driving device 108 is an arc-shaped motor.

As shown in fig. 2, in the present embodiment, the driving device 108 is an arc motor. The arc-shaped motor can directly drive the mounting plate 106 to perform the angle adjustment process, so that structural connection between the driving device 108 and the mounting plate 106 is omitted, on one hand, the loss of driving force is reduced, and the processing cost is reduced. On the other hand, the complex process of driving the mounting plate 106 to adjust the angle through the linear motor and the arc-shaped sliding rail can be avoided, and the driven connecting structure is reduced. In addition, the installation weight of the base 102 can be reduced by directly driving the installation plate 106 to adjust the angle through the arc-shaped motor, so that the gravity center of the screen adjustment mechanism is further prevented from deviating, and the alignment accuracy between the screen on the installation plate 106 and the battery piece is improved.

Specifically, the mover end 1084 is reciprocally movable upon actuation of the stator end 1082.

As shown in FIG. 1, in the present embodiment, the stator end 1082 is nested within the mover end 1084 to properly position the stator end 1082 with the mover end 1084. In addition, a gap exists between the stator end 1082 and the mover end 1084 to ensure that the relative movement between the two ends is smoothly performed. When the driving device 108 works, the mover end 1084 and the stator end 1082 are matched and generate relative movement, so as to drive the mounting plate 106 to rotate, so that the angle adjustment of the mounting plate 106 is versatile, the rotation at different angles can be performed in the alignment process of the upper screen of the mounting plate 106 and the battery piece, and the printing efficiency and the quality of the battery piece are further improved.

The drive 108 is an arc motor, and the drive 108 includes a mover end 1084 and a stator end 1082. Specifically, stator end 1082 nests within mover end 1084 to properly position stator end 1082 and mover end 1084. In addition, a gap exists between the stator end 1082 and the mover end 1084 to ensure that the relative movement between the two ends is smoothly performed. When the driving device 108 works, the mover end 1084 and the stator end 1082 are matched and generate relative movement, so as to drive the mounting plate 106 to rotate, so that the angle adjustment of the mounting plate 106 is versatile, the rotation at different angles can be performed in the alignment process of the upper screen of the mounting plate 106 and the battery piece, and the printing efficiency and the quality of the battery piece are further improved.

In a particular embodiment, as shown in fig. 8 and 9, the guide 1086 is fixedly coupled to the base 102, and the fasteners pass through the base 102, the guide 1086, the mover end 1084, and the mounting plate 106 in that order. Stator end 1082 is fixed to base 102 and is disposed on the same side as guide 1086, and the fastener may fixedly couple mover end 1084 to mounting plate 106, so as to ensure that mover end 1084 and stator end 1082 cooperate with each other to drive mounting plate 106 to rotate, and ensure that mover end 1084 and mounting plate 106 are coupled to base 102 as a whole via the fastener. Specifically, the fastener is a screw and a nut, the screw is partially threaded, that is, the screw is threaded at the joint of the screw and the mover end 1084 and the mounting plate 106, and the screw is fixed by adopting a threaded connection manner, and the contact part of the screw and the base 102 and the guide 1086 does not have threads, and can be a smooth surface, so that the mover end 1084 and the stator end 1082 cooperate with each other to drive the mounting plate 106 to rotate relative to the guide 1086 and the base 102.

In a specific embodiment, as shown in fig. 8 and 9, the mover end 1084 and the stator end 1082 generally use magnetic members such as magnets, and the fastening member generally uses metal, so that the base 102 of the embodiment is provided with the guide member 1086, and the guide member 1086 can play a good role in guiding the fastening member during the process of assembling the fastening member, so as to prevent the mover end 1084 and the stator end 1082 from attracting the fastening member, and prevent the fastening member from being shifted in position.

In a particular embodiment, as shown in fig. 8 and 9, a gap exists between the fastener and the base 102 and the guide 1086 (i.e., the fastener is movably coupled to the base 102 and the guide 1086) to ensure that the mover end 1084 is rotatable with the mounting plate 106 as a unit.

As shown in fig. 4, in particular, the guide structure 104 includes a guide rail slider group, which includes: an arc-shaped guide rail 1042 arranged on the base 102; and the slider 1044 is disposed on the arc-shaped guide rail 1042 and connected to the mounting plate 106.

In this embodiment, the guide structure 104 includes a set of guide rail sliders. Wherein, the guide rail slider group comprises an arc-shaped guide rail 1042 and a slider 1044. The arc-shaped guide rail 1042 can cooperate with the driving device 108 to guide the mounting plate 106 in an arc motion, so that the mounting plate 106 can smoothly rotate, and the alignment stability of the halftone on the mounting plate 106 is improved. The slider 1044 serves as a connecting structure between the mounting plate 106 and the arc-shaped guide rail 1042 to provide a supporting force for the mounting plate 106. And can cooperate with the arcuate rails 1042 to provide a more stable rotation of the mounting plate 106.

Specifically, the guide structure 104 includes a set of guide rail slider sets; or the guiding structure 104 includes a plurality of sets of rail sliders, and the plurality of arc-shaped rails 1042 are concentric.

In the present embodiment, the guiding structure 104 includes one or more guiding slider 1044 groups. When the guide sliders 1044 are grouped into a plurality of groups, the plurality of arc-shaped guide rails 1042 are concentric. When the volume or the weight of the mounting plate 106 is small, the mounting plate 106 can be ensured to rotate stably on the one hand by arranging the group of the guide sliders 1044. On the other hand, the weight of the screen adjusting mechanism can be reduced, so that the whole structure is optimized. When the size or the weight of the mounting plate 106 is large, a plurality of groups of guide sliders 1044 can provide sufficient supporting force for the mounting plate 106, so that the mounting plate 106 can stably and firmly rotate, and the alignment precision with the battery piece is further improved.

As shown in fig. 1, a third embodiment of the present invention provides a screen adjusting mechanism, including: a base 102; a guide structure 104 disposed on the base 102; a mounting plate 106 movably connected to the base 102 via the guide structure 104; and the driving device 108, wherein the driving device 108 at least includes a stator end 1082 and a mover end 1084, the stator end 1082 is disposed on the base 102, and the mover end 1084 is connected to the mounting plate 106 and can be mutually matched with the stator end 1082 to drive the mounting plate 106 to perform an arc motion along the guiding structure 104.

As shown in fig. 2, the driving device 108 is specifically an arc-shaped motor.

In this embodiment, the driving device 108 is an arc motor. The arc-shaped motor can directly drive the mounting plate 106 to perform the angle adjustment process, so that structural connection between the driving device 108 and the mounting plate 106 is omitted, on one hand, the loss of driving force is reduced, and the processing cost is reduced. On the other hand, the complex process of driving the mounting plate 106 to adjust the angle through the linear motor and the arc-shaped sliding rail can be avoided, and the driven connecting structure is reduced. In addition, the installation weight of the base 102 can be reduced by directly driving the installation plate 106 to adjust the angle through the arc-shaped motor, so that the gravity center of the screen adjustment mechanism is further prevented from deviating, and the alignment accuracy between the screen on the installation plate 106 and the battery piece is improved.

In the present embodiment, the mover end 1084 is capable of reciprocating motion upon actuation of the stator end 1082. The mover end 1084 is directly connected to the mounting plate 106 to drive the mounting plate 106 to rotate, so that the angle adjustment of the mounting plate 106 is versatile, the rotation at different angles can be performed in the alignment process of the upper screen of the mounting plate 106 and the battery piece, and the printing efficiency and quality of the battery piece are further improved.

As shown in fig. 7, specifically, the screen adjusting mechanism further includes: a reset point 110 disposed on the base 102; a first displacement point 112 disposed on the base 102 and located at one side of the reset point 110; a second displacement point 114 disposed on the base 102 and located at the other side of the reset point 110; and the detection piece 116 is arranged on the mounting plate 106 and electrically connected with the driving device 108, and is used for being matched with the first displacement point 112 and the second displacement point 114 to ensure the rotation angle of the mounting plate 106.

In this embodiment, the screen adjusting mechanism further includes a reset point 110, a first displacement point 112, a second displacement point 114, and a detecting member 116. The detecting member 116 is disposed on the mounting plate 106 and electrically connected to the driving device 108 to rotate along with the mounting plate 106. Reset point 110 is disposed on base 102 to indicate that when sensing member 116 is in this position, mover end 1084 of drive mechanism 108 is not moved in an arc, i.e., mounting plate 106 is in the home position. The first displacement point 112 and the second displacement point 114 are respectively disposed at two sides of the reset point 110, and are used for representing the maximum displacement point of the mover end 1084 of the driving device 108 relative to the stator end 1082 at one side of the arc motion when the detecting member 116 is located at the first displacement point 112, i.e., the limit rotation angle of the mounting plate 106 at one side. When the sensing member 116 is located at the second displacement point 114, the mover end 1084 of the driving device 108 is at the maximum displacement point at the other side of the arc motion with respect to the stator end 1082, i.e., the limit rotation angle at which the mounting plate 106 is at the other side. Therefore, the rotation angle of the mounting plate 106 can be detected through the structure, and the problem that the mover end 1084 cannot be reset due to overlarge arc movement is avoided, so that the service life of the driving device 108 is prolonged.

As shown in fig. 1, a fourth embodiment of the present invention provides a screen adjusting mechanism, including: a base 102; a guide structure 104 disposed on the base 102; a mounting plate 106 movably connected to the base 102 via the guide structure 104; and the driving device 108, wherein the driving device 108 at least includes a stator end 1082 and a mover end 1084, the stator end 1082 is disposed on the base 102, and the mover end 1084 is connected to the mounting plate 106 and can be mutually matched with the stator end 1082 to drive the mounting plate 106 to perform an arc motion along the guiding structure 104.

Specifically, the driving device 108 is an arc-shaped motor.

As shown in fig. 5, specifically, the screen adjusting mechanism further includes: the precision control 118 is disposed on the base 102 and the mounting plate 106, electrically connected to the driving device 108, and configured to feed back the position of the mounting plate 106 to the driving device 108.

In this embodiment, the screen adjustment mechanism further includes a precision control 118. The precision control 118 is electrically connected to the driving device 108, and can monitor the real-time position of the rotation of the mounting plate 106 and feed back the real-time position to the driving device 108, thereby ensuring that the driving device 108 can obtain the information of the rotation position of the mounting plate 106. Therefore, the driving device 108 can adjust the angle of the mounting plate 106 in real time, and the alignment accuracy between the upper screen of the mounting plate 106 and the battery cell is further improved.

As shown in fig. 7, in particular, the precision control 118 includes a grating ruler 1182 and a reading head 1184, one of the grating ruler 1182 and the reading head 1184 is disposed on the base 102, and the other is disposed on the mounting plate 106.

In this embodiment, the precision control assembly includes a grating ruler 1182 and a reading head 1184. The grating ruler 1182 is disposed on the mounting plate 106, and the reading head 1184 is disposed on the base 102. The cooperation between the grating ruler 1182 and the reading head 1184 ensures that the driving device 108 can obtain the rotation angle of the mounting plate 106. Therefore, the driving device 108 can accurately drive the mounting plate 106, so that the mounting plate 106 can rotate to a correct position, the accuracy of the rotation angle of the mounting plate 106 is further improved, and the printing quality and efficiency of the battery piece are ensured.

Specifically, the grating ruler 1182 may be disposed on the base 102, and the reading head 1184 may be disposed on the mounting plate 106.

As shown in fig. 1, a fifth embodiment of the present invention provides a screen adjusting mechanism, including: a base 102; a guide structure 104 disposed on the base 102; a mounting plate 106 movably connected to the base 102 via the guide structure 104; and the driving device 108, wherein the driving device 108 at least includes a stator end 1082 and a mover end 1084, the stator end 1082 is disposed on the base 102, and the mover end 1084 is connected to the mounting plate 106 and can be mutually matched with the stator end 1082 to drive the mounting plate 106 to perform an arc motion along the guiding structure 104.

Specifically, the driving device 108 is an arc-shaped motor.

As shown in fig. 6, specifically, the screen adjusting mechanism further includes: a limiting slide 120 arranged on the mounting plate 106, wherein the screen printing plate can be mounted on the mounting plate 106 from the limiting slide 120; and a positioning assembly 122 disposed on the mounting plate 106 and used for positioning the screen.

As shown in fig. 1, in the present embodiment, the screen mechanism further includes a position-limiting slide 120 and a positioning assembly 122. The limiting slide rail 120 is arranged on the mounting plate 106, can provide a mounting station for mounting the screen printing plate, and can be matched with the positioning assembly 122, so that the screen printing plate can be accurately and quickly mounted on the mounting plate 106, and mounting and dismounting are facilitated. In addition, the curb ramp 120 has an inlet end and an outlet end. The screen plate enters the limiting slide 120 from the inlet end. The positioning assembly 122 serves as a positioning structure for installing the screen printing plate, so that the screen printing plate can be firmly and stably installed on the installation plate 106, and the positioning assembly 122 can avoid the screen printing plate from falling off in the rotating process of the installation plate 106, so that the alignment efficiency of the screen printing plate is improved.

As shown in fig. 1, in particular, the positioning assembly 122 includes: a positioning block 1222 disposed at an end of the position-limiting slide 120; a micro switch 1224, disposed at an end of the limit slide 120; a positioning cylinder 1226 disposed on the mounting plate 106 and electrically connected to the micro switch 1224; and the positioning column 1228 is arranged on the positioning cylinder 1226, and can position the screen under the driving of the positioning cylinder 1226.

As shown in fig. 1, in the present embodiment, the positioning assembly 122 includes a positioning block 1222, a micro switch 1224, a positioning cylinder 1226, and a positioning post 1228. The positioning block 1222 is disposed at an end of the limiting slide 120, and can limit the position of the screen installation, so as to prevent the screen installation position from deviating, thereby improving the installation accuracy of the screen. The micro switch 1224 is arranged at the outlet end of the limiting slide rail 120 and is electrically connected with the positioning cylinder 1226, when the screen printing plate contacts the micro switch 1224, the micro switch 1224 provides in-place information to the industrial personal computer, the industrial personal computer responds to the in-place information and then sends out a prompt signal, after the prompt signal is manually received, the positioning cylinder 1226 is manually controlled to be started on an industrial personal computer interaction interface, and the positioning cylinder 1226 is started after responding to a command, so that the accuracy degree of the screen printing plate installation process is improved. The positioning cylinder 1226 is connected to the positioning column 1228, and the positioning cylinder 1226 can cooperate with the micro-switch 1224, so that the screen is firmly fixed on the mounting plate 106. Compared with the traditional screen mounting mode, the process has the advantages that on one hand, the stability of screen mounting can be improved, and the condition that the screen falls off in the rotating process is avoided; on the other hand, the screen printing plate is more convenient and quick to mount, and the maintenance and the replacement of the screen printing plate are facilitated.

Specifically, the screen printing plate is inserted into the inlet end of the limit slide 120, so that the screen printing plate enters the limit slide 120 from the inlet end, when the part of the screen printing plate, which is located at the outlet end of the limit slide 120, contacts with the micro switch 1224, the micro switch 1224 provides in-place information to the industrial personal computer, the industrial personal computer sends out a prompt signal after responding to the in-place information, after the prompt signal is manually received, the positioning cylinder 1226 is manually controlled to be started on an industrial personal computer interaction interface, and the positioning cylinder 1226 is started after responding to a command. Thereby make the location cylinder 1226 drive reference column 1228 and exert the fastening force to mounting panel 106, consequently make the half tone fix in spacing slide 120, accomplished whole installation. When the screen printing plate needs to be detached, the positioning air cylinder 1226 is started, the driving end of the positioning air cylinder is retracted, the positioning column 1228 does not exert fastening force on the screen printing plate any more, and the screen printing plate is taken out of the limiting slide rail 120.

A sixth embodiment of the present invention provides a printing press including: a screen adjusting mechanism as in any one of the above embodiments, for adjusting the position of the screen.

In this embodiment, the screen adjusting mechanism in any one of the above embodiments is used to adjust the position of the screen, so that all the beneficial effects of the screen adjusting mechanism are achieved, and are not described again. In addition, the screen adjusting mechanism can ensure the printing quality and efficiency of the printer for printing the battery piece, thereby improving the yield of the battery piece finished product.

In this embodiment, the printing machine may further include a loading and unloading mechanism. Wherein, go up unloading mechanism can be the conveyer belt, through placing the battery piece and realize automatic feeding's process on last unloading mechanism to improve the printing efficiency of battery piece.

In this embodiment, the printing press may further include a price raising mechanism. The lifting mechanism is connected with the screen adjusting mechanism and can adjust the displacement of the screen in the vertical direction, so that the variability of adjusting the position of the screen is improved, and the printing precision of the battery piece is further improved.

As shown in fig. 5, in the present embodiment, the guide structure 104 includes a set of guide rail sliders. Wherein, the guide rail slider group comprises an arc-shaped guide rail 1042 and a slider 1044. The arc-shaped guide rail 1042 can cooperate with the driving device 108 to guide the mounting plate 106 in an arc motion, so that the mounting plate 106 can smoothly rotate, and the alignment stability of the halftone on the mounting plate 106 is improved. The slider 1044 serves as a connecting structure between the mounting plate 106 and the arc-shaped guide rail 1042 to provide a supporting force for the mounting plate 106. And can cooperate with the arcuate rails 1042 to provide a more stable rotation of the mounting plate 106.

As shown in fig. 7, in the present embodiment, the screen adjusting mechanism further includes a reset point 110, a first displacement point 112, a second displacement point 114, and a detecting member 116. The detecting member 116 is disposed on the mounting plate 106 and electrically connected to the driving device 108 to rotate along with the mounting plate 106. Reset point 110 is disposed on base 102 to indicate that when sensing member 116 is in this position, mover end 1084 of drive mechanism 108 is not moved in an arc, i.e., mounting plate 106 is in the home position. The first displacement point 112 and the second displacement point 114 are respectively disposed at two sides of the reset point 110, and are used for representing the maximum displacement point of the mover end 1084 of the driving device 108 relative to the stator end 1082 at one side of the arc motion when the detecting member 116 is located at the first displacement point 112, i.e., the limit rotation angle of the mounting plate 106 at one side. When the sensing member 116 is located at the second displacement point 114, the mover end 1084 of the driving device 108 is at the maximum displacement point at the other side of the arc motion with respect to the stator end 1082, i.e., the limit rotation angle at which the mounting plate 106 is at the other side. Therefore, the rotation angle of the mounting plate 106 can be detected through the structure, and the problem that the mover end 1084 cannot be reset due to overlarge arc movement is avoided, so that the service life of the driving device 108 is prolonged.

The specific detection process comprises the following steps: the drive mechanism 108 is actuated such that its mover end 1084 drives the mounting plate 106 to rotate, and the sensing member 116 is disposed on the mounting plate 106 so as to rotate in synchronism with the mounting plate 106, when the sensing member 116 is displaced to the first displacement point 112 during rotation, the sensing member 116 is now able to recognize that the mounting plate 106 has rotated to a maximum rotational angle relative to the base 102 side. When the detecting member 116 is displaced to the second displacement point 114 during the rotation, the detecting member 116 can recognize that the mounting plate 106 is rotated to the maximum rotation angle with respect to the other side of the base 102. The electrical connection with the driving device 108 then controls the driving device 108 to stop rotating or the driving device 108 to rotate in the opposite direction, so as to prevent the mounting plate 106 from being unset. When the detecting member 116 is displaced to the reset point 110, which means that the mover end 1084 of the driving device 108 does not move in an arc, the mounting plate 106 is in the original position accordingly.

As shown in fig. 4, in the present embodiment, the screen adjusting mechanism further includes a precision control 118. The precision control 118 is electrically connected to the driving device 108, and can monitor the real-time position of the rotation of the mounting plate 106 and feed back the real-time position to the driving device 108, thereby ensuring that the driving device 108 can obtain the information of the rotation position of the mounting plate 106. Therefore, the driving device 108 can adjust the angle of the mounting plate 106 in real time, and the alignment accuracy between the upper screen of the mounting plate 106 and the battery cell is further improved.

As shown in fig. 7, in the present embodiment, the positioning assembly 122 includes a positioning block 1222, a micro switch 1224, a positioning cylinder 1226 and a positioning post 1228. The positioning block 1222 is disposed at an end of the limiting slide 120, and can limit the position of the screen installation, so as to prevent the screen installation position from deviating, thereby improving the installation accuracy of the screen. The micro switch 1224 is arranged at the outlet end of the limiting slide rail 120 and is electrically connected with the positioning cylinder 1226, when the screen printing plate contacts the micro switch 1224, the micro switch 1224 provides in-place information to the industrial personal computer, the industrial personal computer responds to the in-place information and then sends out a prompt signal, after the prompt signal is manually received, the positioning cylinder 1226 is manually controlled to be started on an industrial personal computer interaction interface, and after the positioning cylinder 1226 responds to a command, the positioning cylinder 1226 is started so that the accuracy degree of the screen printing plate installation process is improved. The positioning cylinder 1226 is connected to the positioning column 1228, and the positioning cylinder 1226 can cooperate with the micro-switch 1224, so that the screen is firmly fixed on the mounting plate 106. Compared with the traditional screen mounting mode, the process has the advantages that on one hand, the stability of screen mounting can be improved, and the condition that the screen falls off in the rotating process is avoided; on the other hand, the screen printing plate is more convenient and quick to mount, and the maintenance and the replacement of the screen printing plate are facilitated.

Specifically, the screen printing plate is inserted into the inlet end of the limit slide 120, so that the screen printing plate enters the limit slide 120 from the inlet end, after the part of the screen printing plate, which is positioned at the outlet end of the limit slide 120, contacts with the micro switch 1224, the micro switch 1224 provides in-place information to the industrial personal computer, the industrial personal computer responds to the in-place information and then sends out a prompt signal, after the prompt signal is manually received, on an interactive interface of the industrial personal computer, the positioning cylinder 1226 is manually controlled to be started, and after the positioning cylinder 1226 responds to a command, the positioning cylinder 1226 is started, so that the positioning cylinder 1226 drives the positioning column 1228 to apply fastening force to the mounting plate 106, the screen printing plate is fixed in the limit slide 120, and the whole mounting process is completed. When the screen printing plate needs to be detached, the positioning air cylinder 1226 is started, the driving end of the positioning air cylinder is retracted, the positioning column 1228 does not exert fastening force on the screen printing plate any more, and the screen printing plate is taken out of the limiting slide rail 120.

As shown in fig. 1, a second embodiment of the present invention provides a screen adjusting mechanism, which is mainly driven by a driving device 108 to drive a mounting plate 106 to rotate around the center of a base 102 and simultaneously complete a rotation action under the cooperation of a reading head 1184 and a grating scale 1182 under the limit of arc-shaped guide rails 1042 at two sides. The positioning assembly 122 mainly manually pushes the screen plate and contacts the positioning block 1222 and the micro switch 1224, and then controls the stretching of the positioning cylinder 1226 by inching to press the screen plate, thereby completing the positioning of the screen plate.

As shown in fig. 1, in the present embodiment, the screen adjusting mechanism is mainly composed of a base 102, a rotating portion, a precision control 118, and a positioning assembly 122.

As shown in fig. 3, in the present embodiment, the rotating portion includes a driving device 108, a mounting plate 106 and two arc-shaped guide rails 1042, the driving device 108 includes a mover end 1084 and a stator end 1082, the stator end 1082 is disposed at the rear end of the base 102 and fixed thereto; two arc-shaped guide rails 1042 are respectively arranged at two sides of the front end of the base 102 and fixed with the base;

as shown in fig. 7, in the present embodiment, a displacement monitoring device is disposed in an extension line direction of the radian of the stator end 1082, the displacement monitoring device includes a reset point 110, a first displacement point 112, a second displacement point 114, and a detection member 116, the detection member 116 is fixedly disposed on the mounting plate 106 through a connecting member, the reset point 110, the first displacement point 112, and the second displacement point 114 are fixed on the base 102 through a fixing base, when the detection member 116 reaches the reset point 110, the driving device 108 is in an origin position, that is, the mover end 1084 is located at the origin position relative to the stator end 1082, and the first displacement point 112 and the second displacement point 114 are limit points at which the mover end 1084 slides left and right relative to the stator end 1082.

In this embodiment, the mover end 1084 is disposed on the mounting plate 106, the two arc-shaped guide rails 1042 are also connected to the mounting plate 106, and the mover end 1084 and the arc-shaped guide rails 1042 are fixed on the same side of the mounting plate 106.

The two arc-shaped guide rails 1042 are driven by the driving device 108, that is, the mover end 1084 and the stator end 1082 slide relative to each other, so as to limit the mounting plate 106 from rotating around the center of the base 102; that is, the two arc-shaped guide rails 1042 are arranged to cooperate with the driving device 108 to realize smooth rotation of the mounting plate 106, and limit the displacement of the driving device 108, i.e., the displacement of the mover end 1084 relative to the stator end 1082. The two arc-shaped guide rails 1042 are symmetrically arranged at two sides of the driving device 108, and the arrangement of the arc-shaped guide rail 1042 at each side is not limited to 1, and a plurality of arc-shaped guide rails may be arranged, for example, 1, 2, 3 arc-shaped guide rails may be arranged.

The position of the arc-shaped guide rail 1042 is not limited, and may be provided on the mounting plate 106 on both sides of the driving device 108, or on a side close to the driving device 108 or a side far from the driving device 108.

As shown in fig. 4, in the embodiment, the precision control component 118 includes a reading head 1184, a grating ruler 1182, a reading head fixing seat and a grating ruler fixing seat, the reading head 1184 is fixed to the base 102 through the reading head fixing seat, and the grating ruler 1182 is connected to the mounting plate 106 through the grating ruler fixing seat. The accuracy control 118 essentially records the real-time position of the mounting plate 106 and feeds back to the drive mechanism 108 to complete a closed loop; the grating ruler 1182 is arranged on the mounting plate 106 through a connecting piece.

In this embodiment, the positioning assembly 122 includes a positioning assembly 122 and a position-limiting slide 120, the screen positioning assembly 122 includes a positioning column 1228, a positioning cylinder 1226, a positioning block 1222 and a micro switch 1224, the positioning column 1228 is connected to the positioning cylinder 1226, the positioning cylinder 1226 is disposed on one side of the mounting plate 106, and the positioning block 1222 and the micro switch 1224 are also disposed on the other side of the mounting plate 106; the limiting slide 120 is disposed on a side of the mounting plate 106 where the driving device 108 is not disposed, and when a screen is installed or replaced, the screen is inserted into the limiting slide 120, and then the positioning cylinder 1226 and the positioning post 1228 are activated to fix the screen.

As shown in fig. 7, in the present embodiment, the positioning assembly 122 includes a positioning column 1228, a positioning cylinder 1226, and a limiting structure, the positioning column 1228 is connected to the positioning cylinder 1226, and the positioning cylinder 1226 is disposed on one side of the mounting plate 106; the retaining structure is disposed on the other side of the mounting plate 106.

In this embodiment, the position limiting structure further includes a positioning block 1222 and a micro switch 1224.

In this embodiment, the driving device 108 drives the mounting plate 106 to rotate around the center of the base 102 under the limit of the arc-shaped guide rails 1042 on the two sides and under the cooperation of the high-precision grating ruler 1182. The positioning assembly 122 completes the positioning of the screen by controlling the extension and retraction of the positioning cylinder 1226.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen adjusting mechanism, comprising:

a base;

the guide structure is arranged on the base;

the mounting plate is movably connected with the base through the guide structure;

the driving device at least comprises a stator end and a rotor end, the stator end is connected with the base, the rotor end is connected with the mounting plate, and the driving device drives the mounting plate to move in an arc shape along the guide structure.

2. The screen adjusting mechanism of claim 1,

the driving device is an arc-shaped motor;

the rotor end is matched with the stator end to drive the mounting plate to reciprocate along the guide structure.

3. The screen adjusting mechanism of claim 1,

the guide structure includes a guide rail slider group, the guide rail slider group includes:

the arc-shaped guide rail is arranged on the base;

and the sliding block is arranged on the arc-shaped guide rail and is connected with the mounting plate.

4. The screen adjusting mechanism of claim 3,

the guide structure comprises a group of guide rail sliding block groups; or

The guide structure comprises a plurality of guide rail sliding block sets, and the guide rail sliding block sets are arranged on the guide rail sliding block sets and are in a plurality of concentric circles of the arc-shaped guide rails.

5. The screen adjusting mechanism of any one of claims 1 to 4, further comprising:

the reset point is arranged on the base;

the first displacement point is arranged on the base and is positioned on one side of the reset point;

the second displacement point is arranged on the base and is positioned on the other side of the reset point;

the detection piece is arranged on the mounting plate, is electrically connected with the driving device and is used for matching with the first displacement point and the second displacement point to ensure the rotation angle of the mounting plate.

6. The screen adjusting mechanism of any one of claims 1 to 4, further comprising:

and the precision control part is arranged on the base and the mounting plate, is electrically connected with the driving device and can be used for feeding back the position of the mounting plate to the driving device.

7. The screen adjusting mechanism of claim 6,

the precision control part comprises a grating ruler and a reading head, one of the grating ruler and the reading head is arranged on the base, and the other is arranged on the mounting plate.

8. The screen adjusting mechanism of any one of claims 1 to 4, further comprising:

the limiting slide way is arranged on the mounting plate, and the screen printing plate can be mounted on the mounting plate from the limiting slide way;

and the positioning assembly is arranged on the mounting plate and can be used for positioning the screen printing plate.

9. The screen adjustment mechanism of claim 8, wherein the positioning assembly comprises:

the positioning block is arranged at the end part of the limiting slide way;

the microswitch is arranged at the end part of the limiting slide way;

the positioning cylinder is arranged on the mounting plate and is electrically connected with the microswitch;

and the positioning column is arranged on the positioning cylinder and can position the screen under the driving of the positioning cylinder.

10. A printing press, comprising:

the screen adjustment mechanism of any one of claims 1 to 9, for adjusting the position of the screen.