Screen printing plate replacing device

Abstract

The invention discloses a screen printing plate replacement device, and relates to the technical field of screen printing plate replacement. A screen printing plate replacing device comprises a machine frame, a plate frame is installed on the machine frame, the plate frame is detachably connected with a screen printing plate, and a locking mechanism used for locking the screen printing plate is installed on the plate frame. A grabbing mechanism and a storage warehouse are further installed on the machine frame, a plurality of storage areas where the screen printing plates are stored are formed in the storage warehouse, the grabbing mechanism is configured to be capable of inserting / pulling the screen printing plates on the plate frame, and the storage warehouse is configured to be capable of moving so that the grabbing mechanism can insert / pull the screen printing plates in any storage area. The screen printing plate can be replaced conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of screen printing plate replacement, and in particular to a screen printing plate replacement device. Background Art

[0002] Screen printing is a printing technology that uses a silk screen as a base, makes a screen printing plate with images through a photosensitive platemaking method, and then transfers the ink to the substrate through a scraper. Screen printing belongs to hole printing. Its basic principle is to transfer the ink to the substrate through the mesh of the image part through the extrusion of the scraper, forming the same image as the original. In the screen printing industry, the screen printing plate is a key component for pattern transfer, and its replacement convenience plays a decisive role in the entire printing production process. Existing screen printing equipment mostly uses bolts and nuts to fasten the screen printing plate and the plate frame, and a large number of different types of screen printing plates are stored in the frame. When replacing, workers need to use a wrench to unscrew many bolts and nuts one by one to disassemble the screen printing plate, and then call the required screen printing plate in the frame. After that, it needs to be transported and debugged to complete the replacement of the screen printing plate. This replacement method is cumbersome and time-consuming. Summary of the invention

[0003] In order to facilitate the replacement of the screen printing plate, the present application provides a screen printing plate replacement device.

[0004] The present application provides a screen printing plate replacement device that adopts the following technical solution: A screen printing plate replacement device comprises a frame, the frame is equipped with a plate rack, the plate rack is detachably connected with a screen printing plate, and the plate rack is equipped with a locking mechanism for locking the screen printing plate; the frame is also equipped with a gripping mechanism and a storage library, a plurality of storage areas for storing screen printing plates are formed in the storage library, the gripping mechanism is configured to be able to pull out the screen printing plate on the plate rack or insert the screen printing plate into the plate rack, and the gripping mechanism is also configured to be able to pull out the screen printing plate in any storage area or insert the screen printing plate into the storage area.

[0005] By adopting the above technical solution, after driving the locking mechanism to unlock the screen printing plate, the grasping mechanism can grasp the screen printing plate and insert it into the storage area, and then drive the storage library to move so that the screen printing plate stored in other storage areas reaches the designated position to be grasped, and then drive the grasping mechanism to grasp the screen printing plate and insert it into the plate rack, and then drive the locking mechanism again to lock the screen printing plate to complete the replacement of the screen printing plate.

[0006] Preferably, the plate rack includes a connecting member connected to an upper plate frame and a lower plate frame that are adjacently arranged, and a receiving area for accommodating the screen printing plate is formed between the upper plate frame and the lower plate frame; the end of the screen printing plate has a clamping plate, and the connecting member has a clamping slot, and the clamping plate is clamped into the clamping slot.

[0007] By adopting the above technical solution, the screen printing plate can be inserted into the receiving area, and the card plate will be stuck in the card slot; it is also convenient to directly pull out the screen printing plate by translation.

[0008] Preferably, the locking mechanism includes a driving member installed on the outer wall of the connecting member, the outer wall of the connecting member is provided with a receiving hole that passes through to the card slot, the driving member is connected to a pressure plate, the pressure plate is equipped with a plurality of pressure pads, and the driving member is configured to be able to drive the pressure plate to move, thereby driving the plurality of pressure pads to move and press the card plate.

[0009] By adopting the above technical solution, after the screen printing plate is inserted into the receiving area, the driving member can easily drive the pressing plate to move so as to move the multiple pressure pads to press the clamping plate.

[0010] Preferably, the connecting member is provided with a mounting groove penetrating to the card slot, the mounting groove is provided with a detection member, and the detection member is configured to detect whether the card plate is moved into place.

[0011] By adopting the above technical solution, the detection component can determine whether the screen printing plate is moved into place.

[0012] Preferably, the gripping mechanism includes a plate body mounted on a frame, the plate body is equipped with a first transverse reciprocating member, the first transverse reciprocating member is connected to a vertical reciprocating member, the vertical reciprocating member is connected to a rotary driving member, the rotary driving member is equipped with a mounting frame, the mounting frame is equipped with a second transverse reciprocating member, the second transverse reciprocating member is equipped with a suction cup; the mounting frame is also equipped with a supporting assembly, the second transverse reciprocating member is configured to drive the suction cup to move and suck the screen printing plate so as to drag the screen printing plate onto the supporting assembly.

[0013] By adopting the above technical solution, by driving the first horizontal reciprocating member, the vertical reciprocating member, and the rotary driving member, the suction cup can be driven to move and suck the screen printing plate on the plate frame, and then the second horizontal reciprocating member can be driven to pull out the screen printing plate and drag it onto the supporting component.

[0014] Preferably, the supporting assembly includes a supporting plate connected to the mounting frame, a plurality of slots are opened at the upper end of the supporting plate, the plurality of slots are arranged in an array, each slot is rotatably connected to a load-bearing wheel, and the upper end of the load-bearing wheel is higher than the upper end of the supporting plate.

[0015] By adopting the above technical solution, the dragged screen printing plate will reach the supporting plate and move under the support of multiple bearing wheels. The bearing of the screen printing plate by multiple bearing wheels can prevent the screen printing plate from being completely deformed due to uneven force.

[0016] Preferably, the storage depot includes a fixed plate connected to a frame, the fixed plate is equipped with a connected driving member and a storage cylinder, the storage cylinder is equipped with a plurality of partitions, the plurality of partitions are evenly arranged along the axis of the storage cylinder, and the storage area is formed between adjacent partitions; a limiting component is installed on the storage cylinder in each storage area, and the limiting component is used to limit the screen printing plate.

[0017] By adopting the above technical solution, the screen printing plate can be placed in the storage area and restricted by the limiting component; multiple screen printing plates can be stored in the storage for backup, and the screen printing plate in any storage area can be rotated to the position to be grasped by driving the rotating member to rotate the storage cylinder.

[0018] Preferably, the limiting assembly includes two limiting members installed on the partition and arranged opposite to each other, and any of the limiting members includes a receiving groove close to the end of the other limiting member, and the end of the screen printing plate can be snapped into the receiving groove; the storage tube also has a snap-in groove, and the snap plate is provided with a snap-in pin, and the snap-in pin is configured to be able to be inserted into / removed from the snap-in groove.

[0019] By adopting the above technical solution, the storage of the screen printing plate can be completed by inserting the screen printing plate into the receiving groove and ensuring that the latch member is inserted into the latching groove.

[0020] Preferably, the latch member comprises a latch plate connected to the latch plate and having deformation capability, the latch plate comprises a clamping block at the end, the clamping groove comprises a clamping groove on the groove wall, and the clamping block is used to be clamped into the clamping groove.

[0021] In summary, the present invention includes at least one of the following beneficial technical effects: 1. After the locking mechanism is driven to unlock the screen printing plate, the grabbing mechanism can grab the screen printing plate and insert it into the storage area, then the storage library is driven to move so that the screen printing plate stored in other storage areas reaches the designated position to be grabbed, and then the grabbing mechanism is driven to grab the screen printing plate and insert it into the plate rack, and then the locking mechanism is driven again to lock the screen printing plate to complete the replacement of the screen printing plate; 2. By driving the first transverse reciprocating member, the vertical reciprocating member, and the rotating driving member, the suction cup can be driven to move and suck the screen printing plate on the plate frame, and then the second transverse reciprocating member can be driven to pull out the screen printing plate and drag it to the supporting assembly; specifically, the dragged screen printing plate will reach the supporting plate and move under the support of multiple bearing wheels, and the bearing of the screen printing plate by the multiple bearing wheels can prevent the screen printing plate from being completely deformed due to uneven force; 3. The present application can place the screen printing plate into the storage area and be limited by the limiting component; a plurality of screen printing plates can be stored in the storage for backup, and the screen printing plate in any storage area can be rotated to the position to be grasped by driving the rotating member to rotate the storage cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a screen printing plate replacement device in an embodiment of the present application; Figure 2 It is a cross-sectional view used to show the plate rack; Figure 3 It is a structural diagram for reflecting the grasping mechanism; Figure 4 It is a schematic diagram for reflecting the structure of the repository; Figure 5 It is a cross-sectional view used to represent the storage reservoir; Figure 6 yes Figure 5 Enlarged view of part A.

[0023] Markings in the accompanying drawings: 1, frame; 2, plate frame; 21, connecting member; 211, slot; 212, receiving hole; 213, mounting slot; 22, upper plate frame; 23, lower plate frame; 24, receiving area; 3, screen printing plate; 31, card plate; 311, card pin; 3111, card pin plate; 3112, card block; 4, locking mechanism; 41, driving member; 42, pressure plate; 43, pressure pad; 44, detection member; 5, grabbing mechanism; 51, plate body; 52, first horizontal Reciprocating member; 53, vertical reciprocating member; 54, rotary drive member; 55, mounting frame; 56, second horizontal reciprocating member; 57, suction cup; 58, supporting assembly; 581, supporting plate; 5811, trough body; 582, load-bearing wheel; 6, storage reservoir; 61, fixing plate; 62, driving member; 63, storage cylinder; 631, snap-in groove; 6311, clamping groove; 64, partition; 65, limiting assembly; 651, limiting member; 6511, receiving groove; 7, storage area. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] The embodiment of the present application discloses a screen printing plate replacement device, which is used to facilitate the use of different types of screen printing plates for replacement.

[0027] Reference Figure 1 and Figure 2 A screen printing plate replacement device includes a frame 1, the frame 1 is equipped with a plate rack 2, the plate rack 2 is detachably connected to a screen printing plate 3, and the plate rack 2 is equipped with a locking mechanism 4 for locking the screen printing plate 3; the frame 1 is also equipped with a gripping mechanism 5 and a storage library 6, and the storage library 6 is formed with a plurality of storage areas 7 storing screen printing plates 3, the gripping mechanism 5 is configured to be able to pull out the screen printing plate 3 on the plate rack 2 or insert the screen printing plate 3 onto the plate rack 2, and the gripping mechanism 5 is configured to be able to pull out the screen printing plate 3 in any storage area 7 or insert the screen printing plate 3 into the storage area 7.

[0028] The replacement action of the screen printing plate 3 is as follows: the locking mechanism 4 is driven to unlock the screen printing plate 3, the screen printing plate 3 is grabbed and inserted into the storage area 7 by the grabbing mechanism 5, and then the storage library 6 is driven to move so that the screen printing plate 3 stored in other storage areas 7, that is, the required screen printing plate 3, reaches the designated position to be grabbed, and then the grabbing mechanism 5 is driven to grab and pull out the screen printing plate 3 and subsequently insert it into the plate rack 2, and then the locking mechanism 4 is driven again to lock the screen printing plate 3 to complete the replacement of the screen printing plate 3.

[0029] Reference Figure 1 and Figure 2 The plate frame 2 includes a connecting member 21, the connecting member 21 is connected to an upper plate frame 22 and a lower plate frame 23 which are adjacently arranged, the upper plate frame 22 and the lower plate frame 23 are both hollow in the middle and are in the shape of a rectangular parallelepiped, and a receiving area 24 for accommodating the screen printing plate 3 is formed between the upper plate frame 22 and the lower plate frame 23; a clamping plate 31 is fixedly connected to the left end portion of the screen printing plate 3, a clamping slot 211 is opened on the connecting member 21, and the clamping plate 31 is clamped into the clamping slot 211.

[0030] When the locking mechanism 4 does not lock the screen printing plate 3 , the screen printing plate 3 can be moved to the right to leave the receiving area 24 or moved to the left to be directly inserted into the receiving area 24 .

[0031] Reference Figure 2The locking mechanism 4 includes a driving member 41 installed on the outer wall of the connecting member 21. The driving member 41 is preferably a cylinder. The outer wall of the connecting member 21 is provided with a receiving hole 212 that passes through the card slot 211. The receiving hole 212 is vertically arranged. The driving member 41 is connected to a pressure plate 42. The pressure plate 42 is equipped with a plurality of pressure pads 43. The driving member 41 is configured to be able to drive the pressure plate 42 to move upward, thereby driving the plurality of pressure pads 43 to move to press the card plate 31 and then press the screen printing plate 3.

[0032] When the screen printing plate 3 is located in the receiving area 24 , the driving member 41 can drive the plurality of pressure pads 43 to move upward to press the clamping plate 31 , thereby fixing the screen printing plate 3 .

[0033] Reference Figure 2 In order to detect whether the screen printing plate 3 has moved into place, the connecting member 21 is provided with an installation slot 213 which passes through the card slot 211, and the installation slot 213 is provided with a detection member 44 which is configured to detect whether the card plate 31 has moved into place. The detection member 44 is, for example, a laser sensor which can determine whether the card plate 31 is in place based on the time flight of the laser beam.

[0034] Reference Figure 1 and Figure 3 The gripping mechanism 5 includes a plate body 51 mounted on the frame 1, the plate body 51 is mounted with a first transverse reciprocating member 52, the first transverse reciprocating member 52 is connected to a vertical reciprocating member 53, the vertical reciprocating member 53 is connected to a rotary driving member 54, the rotary driving member 54 is mounted with a mounting frame 55, and a second transverse reciprocating member 56 is mounted on the mounting frame 55. The first transverse reciprocating member 52, the vertical reciprocating member 53, the rotary driving member 54 and the second transverse reciprocating member 56 are all cylinders, wherein a plurality of suction cups 57 are mounted on the second transverse reciprocating member 56.

[0035] Reference Figure 2 and Figure 3The texture of the screen printing plate 3 may be relatively soft. In order to prevent the screen printing plate 3 from deforming during the movement and causing structural damage, the mounting frame 55 is also equipped with a supporting assembly 58. The second transverse reciprocating member 56 is configured to drive the suction cup 57 to move and suck the screen printing plate 3, thereby dragging the screen printing plate 3 onto the supporting assembly 58, and the supporting assembly 58 will support the screen printing plate 3. Specifically, the supporting assembly 58 includes a supporting plate 581 connected to the mounting frame 55. The supporting plate 581 is arranged horizontally. A plurality of grooves 5811 are opened on the upper end of the supporting plate 581. The plurality of grooves 5811 are arranged in an array. Each groove 5811 is rotatably connected to a supporting wheel 582 for supporting the screen printing plate 3. The upper end of the supporting wheel 582 is higher than the upper end of the supporting plate 581. In the present embodiment, the screen printing plate 3 is usually composed of a screen template, a screen and a screen frame. The screen template is generally located in the middle of the screen frame. The screen template is relatively soft and is used as a core component for printing patterns and texts. Hard contact is usually avoided. For this reason, the plurality of supporting wheels 582 are arranged in two rows. The two rows of supporting wheels 582 are mainly used to support the screen frame.

[0036] Drive the first transverse reciprocating member 52 and the vertical reciprocating member 53 to move the multiple suction cups 57 to the left end of the screen printing plate 3 on the contact frame, drive the multiple suction cups 57 to suck the screen printing plate 3, and then drive the second transverse reciprocating member 56 to drive the multiple suction cups 57 to move right to drag the screen printing plate 3 to the upper end of the supporting plate 581. The screen printing plate 3 is supported by multiple supporting wheels at the upper end of the supporting plate 581 and moves. Then, drive the first transverse reciprocating member 52, the vertical reciprocating member 53 and the rotating driving member 54 to move the screen printing plate 3 into the storage area 7.

[0037] Reference Figure 4 Combined with Figure 1 The storage depot 6 includes a fixed plate 61 connected to the frame 1, and the fixed plate 61 is equipped with a connected driving member 62 and a storage cylinder 63. The storage cylinder 63 opens to the left, and the driving member 62 is a cam divider. The driving member 62 can drive the storage cylinder 63 to rotate. The storage cylinder 63 is equipped with a plurality of partitions 64, which are six in this embodiment. The plurality of partitions 64 are evenly arranged along the axis of the storage cylinder 63, and the storage area 7 is formed between the adjacent partitions 64; a limiting component 65 is installed in each storage area 7 on the storage cylinder 63, and the limiting component 65 is used to limit the screen printing plate 3.

[0038] Reference Figure 4 and Figure 5 The limiting assembly 65 includes two limiting members 651 mounted on the partition 64 and arranged opposite to each other. Each limiting member 651 includes a receiving groove 6511 near the end of the other limiting member 651. The end of the screen printing plate 3 can be inserted into the receiving groove 6511. The storage cylinder 63 also has a clamping groove 631. The clamping plate 31 is provided with a clamping pin 311. The clamping pin 311 is configured to be inserted into / removed from the clamping groove 631. Figure 6Specifically, the pin member 311 includes a pin plate 3111 connected to the card plate 31 and having deformation capability, the pin plate 3111 includes a clamping block 3112 at the end, the cross-section of the clamping block 3112 is trapezoidal, the clamping groove 631 includes a clamping groove 6311 on the groove wall, and the clamping block 3112 can be clamped into the clamping groove 6311 and can also be pulled out of the clamping groove 6311.

[0039] After the screen printing plate 3 reaches the left side of the storage area 7, it is also necessary to ensure that the end of the screen printing plate 3 is aligned with the clamping groove 631, drive the second horizontal reciprocating member 56 to move the screen printing plate 3 to the right and insert it into the two clamping grooves 631, and stop when the screen printing plate 3 moves to the point where the pin 311 is clamped into the clamping groove 631 and the clamping block 3112 is clamped into the clamping groove 6311.

[0040] The action of retrieving the screen printing plate 3 is as follows: the driving rotating member 62 drives the storage cylinder 63 to rotate until the screen printing plate 3 in one storage area 7 reaches the right side of the supporting plate 581, and the second transverse reciprocating member 56 drives the suction cup 57 to move and suck the screen printing plate 3 and pull it out.

[0041] In the present application, the number of partitions 64 can be set according to actual needs, and the number of partitions 64 is consistent with the number of types of screen printing plates 3 that can be stored.

[0042] The implementation principle of a screen printing plate replacement device in the embodiment of the present application is as follows: the driving member 41 drives the plurality of pressure pads 43 to move downward to release the lock of the screen printing plate 3, drives the first horizontal reciprocating member 52 and the vertical reciprocating member 53 to move the plurality of suction cups 57 to contact the left end of the screen printing plate 3 on the frame plate, drives the plurality of suction cups 57 to suck the screen printing plate 3, and then drives the second horizontal reciprocating member 56 to drive the plurality of suction cups 57 to move rightward to drag the screen printing plate 3 to the upper end of the supporting plate 581, and the screen printing plate 3 is on the supporting plate 581. The upper end of the support plate 581 is supported by a plurality of supporting wheels to move, and then the first transverse reciprocating member 52, the vertical reciprocating member 53 and the rotary driving member 54 are driven to move and rotate the screen printing plate 3 to the left side of the two clamping grooves 631 in one storage area 7, and then the second transverse reciprocating member 56 is driven to move the screen printing plate 3 rightward and insert it into the two clamping grooves 631, and the screen printing plate 3 stops after the latch member 311 is clamped into the clamping groove 631 and the clamping block 3112 is clamped into the clamping groove 6311; The driving driving member 62 drives the storage tube 63 to rotate until the screen printing plate 3 in one storage area 7 reaches the right side of the supporting plate 581, and the second horizontal reciprocating member 56 drives the suction cup 57 to move to suck the screen printing plate 3 and pull it out, and then the first horizontal reciprocating member 52, the vertical reciprocating member 53 and the rotating driving member 54 are driven again to insert the screen printing plate 3 into the receiving area 24, and finally the driving member 41 is driven again to drive the multiple pressure pads 43 to move upward to lock the screen printing plate 3.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen printing plate replacement device, characterized in that: The invention comprises a frame (1), wherein the frame (1) is provided with a plate rack (2), wherein the plate rack (2) is detachably connected with a screen printing plate (3), and wherein the plate rack (2) is provided with a locking mechanism (4) for locking the screen printing plate (3); the frame (1) is also provided with a gripping mechanism (5) and a storage library (6), wherein a plurality of storage areas (7) storing the screen printing plates (3) are formed in the storage library (6), wherein the gripping mechanism (5) is configured to be able to pull out the screen printing plate (3) on the plate rack (2) or to insert the screen printing plate (3) onto the plate rack (2), and wherein the gripping mechanism (5) is also configured to be able to pull out the screen printing plate (3) in any storage area (7) or to insert the screen printing plate (3) into the storage area (7).

2. The screen printing plate replacement device according to claim 1, characterized in that: The plate frame (2) includes a connecting member (21) connected to the connecting member (21), the connecting member (21) being connected to an upper plate frame (22) and a lower plate frame (23) arranged adjacently, a receiving area (24) for receiving a screen printing plate (3) being formed between the upper plate frame (22) and the lower plate frame (23); the end of the screen printing plate (3) is provided with a clamping plate (31), a clamping groove (211) is formed on the connecting member (21), and the clamping plate (31) is clamped into the clamping groove (211).

3. A screen printing plate replacement device according to claim 2, characterized in that: The locking mechanism (4) comprises a driving member (41) mounted on the outer wall of the connecting member (21); the outer wall of the connecting member (21) is provided with a receiving hole (212) penetrating to the card slot (211); the driving member (41) is connected to a pressure plate (42); the pressure plate (42) is provided with a plurality of pressure pads (43); the driving member (41) is configured to be able to drive the pressure plate (42) to move, thereby driving the plurality of pressure pads (43) to move and press the card plate (31) tightly.

4. The screen printing plate replacement device according to claim 2, characterized in that: The connecting member (21) is provided with a mounting groove (213) penetrating to the card slot (211), and a detection member (44) is installed in the mounting groove (213), and the detection member (44) is configured to detect whether the card plate (31) is moved into position.

5. The screen printing plate replacement device according to claim 1, characterized in that: The gripping mechanism (5) comprises a plate body (51) mounted on a frame (1), the plate body (51) being mounted with a first transverse reciprocating member (52), the first transverse reciprocating member (52) being connected with a vertical reciprocating member (53), the vertical reciprocating member (53) being connected with a rotary driving member (54), the rotary driving member (54) being mounted with a mounting frame (55), the mounting frame (55) being mounted with a second transverse reciprocating member (56), the second transverse reciprocating member (56) being mounted with a suction cup (57); the mounting frame (55) is also mounted with a supporting assembly (58), the second transverse reciprocating member (56) being configured to drive the suction cup (57) to move and suck the screen printing plate (3), thereby dragging the screen printing plate (3) onto the supporting assembly (58).

6. The screen printing plate replacement device according to claim 5, characterized in that: The supporting assembly (58) comprises a supporting plate (581) connected to the mounting frame (55); a plurality of grooves (5811) are formed at the upper end of the supporting plate (581); the plurality of grooves (5811) are arranged in an array; each groove (5811) is rotatably connected to a load-bearing wheel (582); the upper end of the load-bearing wheel (582) is higher than the upper end of the supporting plate (581).

7. The screen printing plate replacement device according to claim 2, characterized in that: The storage depot (6) comprises a fixed plate (61) connected to the frame (1), the fixed plate (61) being provided with a connected driving member (62) and a storage cylinder (63), the storage cylinder (63) being provided with a plurality of partitions (64), the plurality of partitions (64) being evenly arranged along the axis of the storage cylinder (63), the storage area (7) being formed between adjacent partitions (64); a limiting component (65) is installed in each storage area (7) on the storage cylinder (63), the limiting component (65) being used to limit the screen printing plate (3).

8. The screen printing plate replacement device according to claim 7, characterized in that: The limiting assembly (65) includes two limiting members (651) installed on the partition (64) and arranged opposite to each other, and any of the limiting members (651) includes a receiving groove (6511) close to the end of the other limiting member (651), and the end of the screen printing plate (3) can be snapped into the receiving groove (6511); the storage tube (63) is also provided with a snap-in groove (631), and the snap-in plate (31) is provided with a snap-in member (311), and the snap-in member (311) is configured to be able to be inserted into / removed from the snap-in groove (631).

9. The screen printing plate replacement device according to claim 8, characterized in that: The latch member (311) comprises a latch plate (3111) connected to the latch plate (31) and having deformation capability, the latch plate (3111) comprises a clamping block (3112) at the end, the clamping groove (631) comprises a clamping groove (6311) on the groove wall, and the clamping block (3112) is used to be clamped into the clamping groove (6311).

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