Movable plate placing platform for metal plate making machine

Abstract

The utility model relates to the technical field of printing equipment, in particular to an optimized design of a device for installing a metal flexible resin plate material on a magnetic drum, and improves the installation efficiency and precision of the plate material. In addition, the installation of the metal-based flexographic plate is facilitated; the utility model discloses a movable plate placing platform for a metal plate making machine. The movable plate placing platform comprises a platform frame and a magnetic light absorption drum, the sliding rail is installed on the platform frame, the plate placing table slides along the sliding rail, the sliding rail comprises a vertical rail and a horizontal rail which are communicated with each other, the magnetic light absorption drum is assembled on the platform frame located at the tail end of the horizontal rail, and a positioning gauge used for positioning the metal-based flexographic plate is arranged on the surface of the magnetic light absorption drum. A locking device used for locking the position of the platform frame is further arranged on the plate placing table.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, specifically to an optimized design for a plate mounting device for flexible metal resin plates on a magnetic drum. Background Technology

[0002] Flexographic printing plates can be divided into polyester-based flexible resin plates and metal-based flexible resin plates based on their substrate. The polyester-based flexible resin plate market is already mature, while the metal-based flexible resin plate has a slightly smaller market share, but its value cannot be ignored. Metal-based flexible resin plates use metal as a support, bonding elastomers together with a high-performance adhesive layer, followed by a release layer or laser ablation layer and a protective layer. Therefore, metal-based flexible resin plates have greater resistance to deformation than polyester-based flexible materials. Because the metal material is relatively hard, traditional fixing methods cannot adhere the plate to the surface of the printing drum.

[0003] In the existing technical field, a common practice is to embed magnets on the surface of the optical drum, using the attraction force generated by the magnets to adhere and fix the metal-based flexible resin plate to the surface of the drum. However, this method has significant drawbacks: due to the excessively strong attraction of the magnets, once the flexible resin plate approaches the optical drum during installation, it is immediately and firmly attracted, completely losing its mobility. In actual installation operations, precise positioning of the plate is essential, and such strong attraction makes moving the plate extremely difficult when adjustments are needed to achieve the correct positioning, severely impacting installation efficiency and accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a movable plate-laying platform for a metal plate-making machine, which improves the installation efficiency and accuracy of the plate material.

[0005] This utility model is achieved through the following technical solution: a movable plate-laying platform for a metal plate-making machine, comprising a platform frame and a magnetic light-absorbing drum; further comprising a sliding rail mounted on the platform frame and a plate-laying table sliding along the sliding rail, the sliding rail comprising a vertical rail and a horizontal rail that are interconnected, the magnetic light-absorbing drum being mounted on the platform frame located at the end of the horizontal rail, the surface of the magnetic light-absorbing drum being provided with a positioning guide for positioning a metal-based flexible resin plate, and the plate-laying table being provided with a locking device for locking the position with the platform frame.

[0006] The sliding track is fixed inside the platform frame and includes vertical and horizontal rails that pass through each other. A magnetic light-attracting drum is installed on the platform frame at the end of the horizontal rail. The magnetic light-attracting drum is equipped with a positioning guide for magnetically attracting the metal-based flexible resin plate, which is used for initial positioning and adsorption of the metal-based flexible resin plate. The plate-laying table is slidably connected to the sliding track, allowing it to smoothly switch between vertical and horizontal directions via the sliding track.

[0007] In the initial state, the plate-laying table is locked on the vertical rail, and the locking device is in the locked state. After releasing the locking state between the plate-laying table and the sliding rail, the plate-laying table is pushed to the horizontal rail by motor or manually. The locking device then locks the plate-laying table to the sliding rail. Next, the operator places the metal-based flexible resin plate on the plate-laying table, positioning the front end of the metal-based flexible resin plate on the magnetic adsorption drum using a positioning guide. The magnetic adsorption drum is then activated, rotating counterclockwise, causing the metal-based flexible resin plate to be completely adsorbed onto the surface of the magnetic adsorption drum. The metal-based flexible resin plate is then completely removed from the plate-laying table. Finally, the plate-laying table is moved from the horizontal rail to the vertical rail to prevent the metal-based flexible resin plate on the magnetic adsorption drum from colliding with the plate-laying table during subsequent rotary engraving operations, which could damage the metal-based flexible resin plate.

[0008] After the plate-laying platform is pushed to the horizontal direction, the locking device locks the plate-laying platform and the sliding track, allowing the metal-based flexible resin plate on the plate-laying platform to be attracted and fixed to the magnetic light-absorbing drum in a fixed and static state. Furthermore, the magnetic light-absorbing drum is mounted on the platform frame located at the end of the horizontal track, which solves the problem of the metal-based flexible resin plate being unable to be accurately positioned due to the excessive magnetic attraction of the magnetic light-absorbing drum. This prevents the metal-based flexible resin plate from deviating from the fixed position of the magnetic light-absorbing drum, ensuring registration accuracy and improving printing quality.

[0009] Preferably, the platform frame has multiple positioning holes on its inner side, and the locking device has a pin assembly that cooperates with the multiple positioning holes.

[0010] The locking device's pin assembly is inserted into the corresponding positioning hole on the platform frame to lock the plate-laying table and the sliding track, improving the stability of the metal-based flexible resin plate and the magnetic light drum during installation.

[0011] Preferably, the bottom of the plate-laying table is provided with a support frame, and multiple slider assemblies for sliding connection with the sliding rail are installed on both sides of the support frame.

[0012] The plate-laying table is dynamically connected to the sliding rail via a support frame. The bottom support frame employs a frame structure, typically welded from lightweight aluminum alloy profiles, forming a high-rigidity load-bearing surface. Multiple slider assemblies are distributed at the bottom of the support frame, making the plate-laying table more stable when sliding on the sliding rail.

[0013] Preferably, the pin assembly includes a pin, a linkage limiting block, a connecting rod, and a wrench assembly; the pin is slidably connected in an inclined groove provided on the linkage limiting block, and the wrench assembly drives the linkage limiting block to move through the connecting rod, causing one end of the pin to slide in the inclined groove, while the other end disengages from the corresponding positioning hole.

[0014] The pin assembly is used for positioning the plate-laying table and is installed inside the plate-laying table mechanism. The pin is slidably connected to the inclined groove of the linkage limit block, forming a linear motion constraint. The wrench assembly transmits the operating force to the linkage limit block through a connecting rod, driving its overall translation. When the wrench is triggered, the linkage limit block moves the pin along the inclined direction of the groove, causing one end of the pin to slide in the groove while the other end simultaneously exits from the positioning hole, thereby releasing the locked state.

[0015] The limiting hole constrains the pin, ensuring the accuracy of its linear movement and making the plate-laying platform more stable in the locked state. A lever-linkage composite transmission is used, converting the wrench's rotational motion into the linear motion of the linkage block. The operating force is amplified by the linkage and applied to the pin, reducing the manual force required for unlocking.

[0016] Preferably, the wrench assembly includes a wrench and a linkage component that is rotatably fixed on a support frame; the linkage component has a bent structure, with one end engaging with the wrench and the other end fixedly connected to the connecting rod.

[0017] The linkage is mounted on the support frame in a rotating and fixed manner, providing the basic conditions for the motion transmission and conversion of the entire assembly by allowing the linkage to rotate freely within a specific range. The linkage adopts a bent structure design to achieve efficient force transmission and flexible conversion of motion direction. When the operator pulls the wrench, it can drive the linkage to rotate, causing it to drive the connecting rod to move, which in turn causes the pin and linkage limit block to move, thereby releasing the pin assembly from its locked state.

[0018] Preferably, the locking device further includes a reset component, which is fixed on the support frame and connected to the linkage limiting block.

[0019] The reset component is used to drive the linkage limit block to automatically return to its original position, thereby allowing the pin to insert into the corresponding positioning hole. Specifically, when the wrench assembly is released from operation, the reverse force generated by the reset component pushes the linkage limit block to reset, causing the pin to slide in the opposite direction along the inclined groove, so that its end is re-inserted into the positioning hole.

[0020] The reset component is connected to the linkage limit block, enabling it to automatically lock and eliminate manual reset errors. The movement trajectory of the linkage limit block and the pin is constrained by the inclined groove, ensuring precise alignment of the pin and the positioning hole, avoiding locking failure due to reset deviation, and improving the safety of equipment operation.

[0021] Preferably, the reset assembly includes a guide rod, a reset spring, and a limiting block. The guide rod is fixed to the bottom of the support frame, and the reset spring is sleeved on the guide rod. One end of the reset spring is connected to the linkage limiting block, and the other end is fixed by the limiting block.

[0022] The guide rod provides axial guidance for the return spring, limiting its radial displacement. When compressed, the return spring stores elastic potential energy, and when the external force is released, it pushes the linkage limit block to return to its axial position along the guide rod. The limit block secures the end of the spring, preventing it from detaching from the guide rod.

[0023] The guide rod and the limiting block form a double limiting structure, ensuring the linear movement trajectory of the return spring and preventing return failure caused by spring twisting. The axial compression characteristics of the spring separate the operating force from the return force, reducing operating resistance during unlocking and improving the reliability of the locked state.

[0024] Preferably, the slider assembly includes a slider block and a rolling bearing; the slider block is mounted on the support frame via the rolling bearing.

[0025] The rolling bearing is embedded between the sliding block and the support frame, converting sliding friction into rolling friction. The rolling bearing significantly reduces the frictional resistance when the plate-laying table moves, making vertical-to-horizontal switching easier.

[0026] Preferably, the outer side of the support frame is provided with a guide plate, which is used to connect multiple slider assemblies.

[0027] The guide plate is a long strip of metal plate, which is horizontally welded to the outside of the support frame. Its two ends are fixed to the sliding blocks of each slider assembly by bolts to form a rigid connection network.

[0028] The guide plate transforms the independent movement of multiple slider components into synchronous linkage, eliminating track jamming caused by uneven force at a single point. Its rigid connection structure enhances the overall torsional rigidity of the support frame, ensuring that the plate-laying table maintains a horizontal posture during movement.

[0029] Preferably, the rolling bearing is equipped with a limit block.

[0030] The limiting block extends to the side of the sliding track, constraining the lateral displacement of the sliding block. The clearance fit between the limiting block and the side wall of the sliding track forms an anti-detachment structure, preventing the slider assembly from accidentally detaching from the track and improving the safety of the sliding process.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] A movable plate-laying platform for a metal plate-making machine ensures registration accuracy and printing quality. After the plate-laying platform is pushed to the horizontal rail, a locking device locks the plate-laying platform and the sliding rail, allowing the metal-based flexible resin plate on the plate-laying platform to be adsorbed and fixed to the magnetic light drum in a fixed and static state, improving installation efficiency. A positioning guide is used to position one end of the metal-based flexible resin plate, enabling the metal-based flexible resin plate to be accurately positioned, ensuring registration accuracy and improving printing quality.

[0033] Furthermore, to reduce the operational intensity and damage risk during assembly, interconnected vertical and horizontal rails are used to achieve bidirectional adjustability of the plate-laying table in both vertical and horizontal directions. After the plate-laying table is pushed to the horizontal rail, it locks, allowing the metal-based flexible resin plate to be precisely adsorbed and fixed to the magnetic drum in a stationary state. This effectively solves the problem of difficult plate positioning and easy deviation caused by excessive magnetic force, ensuring registration accuracy and printing quality. After the plate is adsorbed, the plate-laying table is moved back to the vertical rail to prevent collisions with the plate on the magnetic drum during subsequent rotational engraving, avoiding plate damage, extending plate life, and reducing production costs.

[0034] Furthermore, the stability of the plate-laying table's movement has been improved. The bottom of the plate-laying table adopts a frame structure welded from lightweight aluminum alloy profiles, forming a high-rigidity load-bearing surface. Rolling bearings convert sliding friction into rolling friction, and the limit blocks are fitted with the track to prevent the plate-laying table from derailing.

[0035] Furthermore, the guide plates on the outside of the support frame transform the independent movement of multiple slider components into synchronous linkage, eliminating the phenomenon of sliding track jamming caused by uneven force at a single point, enhancing the overall torsional rigidity of the support frame, and ensuring that the plate-laying table maintains a horizontal posture when moving.

[0036] Furthermore, the reliability of the locking device is enhanced. The pin slides into the inclined groove of the linkage limit block, and the wrench drives the linkage limit block to move horizontally via the connecting rod, releasing the locking of the plate-laying table. The limit hole constrains the movement of the pin, and the lever-linkage composite transmission amplifies the operating force, reducing the manual force required for unlocking. The reset component drives the linkage limit block to automatically return to its original position, allowing the pin to insert into the positioning hole, eliminating human error, ensuring precise alignment, and improving safety.

[0037] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0038] The present invention will be further described below with reference to the accompanying drawings:

[0039] Figure 1 This is a cross-sectional schematic diagram of the mounting position of the movable plate-laying platform of this utility model.

[0040] Figure 2 This is a cross-sectional schematic diagram of the plate-issuing position of the movable plate-issuing platform of this utility model;

[0041] Figure 3 This is a front view structural cross-sectional diagram of the movable plate-laying platform of this utility model;

[0042] Figure 4 This is a side view of the cross-sectional structure of the movable plate-laying platform of this utility model.

[0043] Figure 5 This is a side view cross-sectional diagram of the pin assembly of this utility model;

[0044] The annotations in the attached figures are explained as follows:

[0045] Platform frame 1, sliding rail 2, plate placement table 3, magnetic light drum 4, locking device 5, metal-based flexible resin plate 6, positioning hole 11, support frame 30, slider assembly 31, sliding block 311, rolling bearing 312, limit block 3121, pin assembly 51, pin 511, linear guide sleeve 5111, linkage limit block 512, inclined groove 5121, connecting rod 513, wrench assembly 514, wrench 5141, linkage component 5142, reset assembly 52, guide rod 521, reset spring 522, limit block 523, guide plate 32, positioning guide 41. Detailed Implementation

[0046] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0047] In the following description, terms such as “inner,” “outer,” “upper,” “lower,” “left,” and “right” are used only to facilitate the description of the embodiments and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] like Figures 1 to 5 As shown, a movable plate-laying platform for a metal plate-making machine includes a platform frame 1, a sliding rail 2, a plate-laying table 3, and a magnetic light-absorbing drum 4, all mounted on the platform frame 1. The platform frame 1 serves as the basic support structure for the entire device and includes two fixed plates, with the movable plate-laying platform mounted between the two fixed plates. The sliding rail 2 is symmetrically mounted on the two fixed plates, providing guidance for the movement of the plate-laying table 3.

[0049] The sliding track 2 includes a vertical track and a horizontal track that are interconnected. The plate-laying platform 3 can move from the vertical track to the horizontal track along the sliding track 2. The upper surface of the plate-laying platform 3 is used to support the metal-based flexible resin plate 6. The magnetic light-absorbing drum 4 is installed on the platform frame 1 at the end of the horizontal track and is used to initially position and adsorb the metal-based flexible resin plate 6.

[0050] The plate-laying table 3 has a support frame 30 at its bottom, which is constructed from various profiles. The support frame 30 uses lightweight aluminum alloy profiles welded into a frame structure, which forms a high-rigidity load-bearing surface that can effectively support the metal-based flexible resin plate 6. Multiple slider assemblies 31 for moving the plate-laying table are installed on both sides of the support frame 30. Each slider assembly 31 includes a sliding block 311 and a rolling bearing 312. The sliding block 311 is mounted on the support frame 30 via the rolling bearing 312. A limit block 3121 is mounted on the rolling bearing 312, extending to the side of the sliding track 2 to constrain the lateral displacement of the sliding block 311 and prevent the slider assembly 31 from accidentally disengaging from the sliding track 2.

[0051] The support frame 30 is also equipped with guide plates 32 on its outer side. The guide plates 32 are long strip metal plates, horizontally welded to the outer side of the support frame 30. Both ends of the guide plates 32 are fixed to the sliding blocks 311 of each slider assembly 31 by bolts, forming a rigid connection network. This converts the independent movement of multiple slider assemblies 31 into synchronous linkage. The surface of the guide plates 32 is relatively smooth, which can prevent the plate-laying table 3 from being significantly tilted due to uneven force during movement. This eliminates the track jamming phenomenon caused by uneven force at a single point, enhances the overall torsional rigidity of the support frame 30, and ensures that the plate-laying table 3 maintains a horizontal posture during movement.

[0052] The support frame 30 is internally equipped with a locking device 5 for positioning the plate-laying table. When the plate-laying table 3 is in the plate-dispensing position, it is fixed to the vertical rail by the locking device 5. When it is necessary to place the metal-based flexible resin plate 6 on the plate-laying table 3, the pin assembly 51 of the locking device 5 disengages from the corresponding positioning hole 11 on the platform frame 1, releasing the locking state between the plate-laying table 3 and the sliding rail 2. The operator pushes the plate-laying table 3 along the sliding rail 2, moving it from the vertical rail to the horizontal rail, positioning the plate-laying table 3 in the plate-loading position, and placing the metal-based flexible resin plate 6 on the plate-laying table 3, with one end positioned on the magnetic light-absorbing drum by the positioning guide. During the movement, the rolling bearing 312 converts sliding friction into rolling friction, significantly reducing the frictional resistance when the plate-laying table 3 moves, making the switch from the vertical to the horizontal direction easier.

[0053] The locking device 5 includes a pin assembly 51 and a reset assembly 52. ​​The pin assembly 51 includes a pin 511, a linkage limit block 512, a connecting rod 513, and a wrench assembly 514. The pin 511 is slidably connected in a groove 5121 provided on the linkage limit block 512. The wrench assembly 514 includes a wrench 5141 and a linkage member 5142 rotatably fixed on the support frame 30. The linkage member 5142 has a bent structure, with one end engaging with the wrench 5141 and the other end fixedly connected to the connecting rod 513. The reset assembly 52 includes a guide rod 521, a reset spring 522, and a limiting block 523. The guide rod 521 is fixed to the bottom of the support frame 30. The reset spring 522 is sleeved on the guide rod 521. One end of the spring is connected to the linkage limiting block 512, and the other end is fixed by the limiting block 523. The limiting block 512 can eliminate the jamming caused by slight tilting of the plate-laying table 3 during movement.

[0054] Furthermore, two inclined slots 5121 are provided, arranged in a V-shape, and are formed on the linkage limit block 512. Because the movable plate-laying platform is assembled between two fixed plates, the two inclined slots 5121 are V-shaped, which allows the two sets of symmetrical locking devices 5 to lock and unlock synchronously. Among them, the support frame 30 is equipped with a linear guide sleeve 5111, which is used to make the pin 511 move in a straight line, ensuring that the pin 511 can be accurately inserted into the positioning hole 11.

[0055] The unlocking process of the locking device 5 is as follows: When it is necessary to release the locking state of the plate-laying table 3, the operator pulls the lever 5141. The lever 5141 drives the linkage 5142 to rotate, the linkage 5142 drives the connecting rod 513 to move, and the connecting rod 513 in turn drives the linkage limit block 512 to move. When the linkage limit block 512 moves, the pin 511 slides along the inclined direction of the inclined groove 5121, so that one end of the pin 511 slides in the inclined groove 5121 and the other end disengages from the corresponding positioning hole 11, thereby realizing the release of the locking state.

[0056] The locking process of the locking device 5 is as follows: After the plate-laying table 3 moves to the horizontal rail, the operator releases the wrench 5141. At this time, the reset spring 522 of the reset assembly 52 releases its elastic potential energy, pushing the linkage limit block 512 to reset axially along the guide rod 521, causing the pin 511 to slide in the opposite direction along the inclined groove 5121, so that its end is re-inserted into the positioning hole 11, thereby achieving precise locking between the plate-laying table 3 and the sliding rail 2.

[0057] The surface of the magnetic light-attracting drum 4 is provided with a positioning guide 41, which is a metal clip and is mounted on the edge of the surface of the magnetic light-attracting drum 4 via a hinge. After the front end of the metal-based flexible resin plate 6 is fixed on the magnetic light-attracting drum 4, the magnetic light-attracting drum 4 is energized to generate a controllable magnetic field, which initially positions and attracts the metal-based flexible resin plate 6. At the same time, the positioning guide 41 is used to position the end of the metal-based flexible resin plate 6, and works in conjunction with the magnetic field of the magnetic light-attracting drum 4 to form a mechanical-magnetic composite fixing mode.

[0058] Furthermore, the interconnected vertical and horizontal rails are connected by an arc-shaped track, making the plate-laying platform 3 more stable when moving and changing direction.

[0059] Furthermore, multiple positioning holes 11 are arranged on the platform frame 1 along the moving path of the sliding rail 2, allowing the pin assembly 51 to be selectively inserted into different positioning holes 11, achieving multi-position locking of the plate-laying table 3. This ensures that the plate-laying table 3 has corresponding positioning holes 11 for the pin assembly 51 to be inserted and positioned in both vertical and horizontal states. This prevents the plate-laying table 3 from shaking in either horizontal or vertical states, ensuring printing registration accuracy.

[0060] The operating steps of a movable plate-laying platform for a metal plate-making machine are as follows:

[0061] Step 1: When the plate-laying table 3 is in the plate-dispensing position, the plate-laying table 3 is in the vertical direction. Move the lever 5141 to disengage the pin assembly 51 from the positioning hole 11 and release the locking state between the plate-laying table 3 and the sliding rail 2.

[0062] Step 2: Push the plate-laying platform 3 along the sliding rail 2 to move it from the vertical rail to the horizontal rail.

[0063] Step 3: Loosen the wrench 5141, and the reset component 52 drives the pin 511 to insert into the corresponding positioning hole 11, thereby achieving precise locking of the plate-laying table 3.

[0064] Step 4: The operator places the metal-based flexible resin plate 6 on the surface of the plate-laying table 3.

[0065] Step 5: The front end of the metal-based flexible resin plate 6 is positioned using positioning gauge 41.

[0066] Step 5: Rotate the magnetic light-absorbing drum 4 so that the metal-based flexible resin plate 6 is completely adsorbed onto the surface of the magnetic light-absorbing drum 4.

[0067] Step 6: Pull the lever 5141 to release the locking state between the plate-laying table 3 and the sliding rail 2, so that the plate-laying table 3 moves from the horizontal rail to the vertical rail, preventing the metal-based flexible resin plate 6 on the surface of the magnetic light drum 4 from colliding with the plate-laying table when it rotates for printing, thus preventing damage to the metal-based flexible resin plate 6.

[0068] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A movable plate-laying platform for a metal plate-making machine, comprising a platform frame (1) and a magnetic light-absorbing drum (4); characterized in that: It also includes a sliding rail (2) installed on the platform frame (1) and a plate-laying table (3) that slides along the sliding rail (2). The sliding rail (2) includes a vertical rail and a horizontal rail that are interconnected. The magnetic light-absorbing drum (4) is mounted on the platform frame (1) located at the end of the horizontal rail. The surface of the magnetic light-absorbing drum (4) is provided with a positioning guide (41) for positioning the metal-based flexible resin plate (6). The plate-laying table (3) is also provided with a locking device (5) for locking the position with the platform frame (1).

2. The movable plate-laying platform for a metal plate-making machine according to claim 1, characterized in that: The platform frame (1) is provided with multiple positioning holes (11), and the locking device (5) is provided with a pin assembly (51) that cooperates with the multiple positioning holes (11).

3. A movable plate-laying platform for a metal plate-making machine according to claim 2, characterized in that: The bottom of the plate-laying table (3) is provided with a support frame (30), and multiple slider assemblies (31) for sliding connection with the sliding rail (2) are installed on the support frame (30).

4. A movable plate-laying platform for a metal plate-making machine according to claim 3, characterized in that: The pin assembly (51) includes a pin (511), a linkage limiting block (512), a connecting rod (513), and a wrench assembly (514). The pin (511) is slidably connected in a groove (5121) provided on the linkage limiting block (512). The wrench assembly (514) drives the linkage limiting block (512) to move through the connecting rod (513), causing one end of the pin (511) to slide in the groove (5121), while the other end disengages from the corresponding positioning hole (11).

5. A movable plate-laying platform for a metal plate-making machine according to claim 4, characterized in that: The wrench assembly (514) includes a wrench (5141) and a linkage (5142) rotatably fixed on the support frame (30); the linkage (5142) has a bent structure, one end of which is engaged with the wrench (5141), and the other end is fixedly connected to the connecting rod (513).

6. A movable plate-laying platform for a metal plate-making machine according to claim 4, characterized in that: The locking device (5) further includes a reset component (52), which is fixed on the support frame (30) and connected to the linkage limit block (512).

7. A movable plate-laying platform for a metal plate-making machine according to claim 6, characterized in that: The reset assembly (52) includes a guide rod (521), a reset spring (522), and a limiting block (523). The guide rod (521) is fixed to the bottom of the support frame (30). The reset spring (522) is sleeved on the guide rod (521), with one end connected to the linkage limiting block (512) and the other end fixed by the limiting block (523).

8. A movable plate-laying platform for a metal plate-making machine according to claim 3, characterized in that: The slider assembly (31) includes a slider block (311) and a rolling bearing (312); the slider block (311) is mounted on the support frame (30) via the rolling bearing (312).

9. A movable plate-laying platform for a metal plate-making machine according to claim 3, characterized in that: The support frame (30) is provided with a guide plate (32) on the outside, which is used to connect multiple slider assemblies (31).

10. A movable plate-laying platform for a metal plate-making machine according to claim 8, characterized in that: The rolling bearing (312) is equipped with a limit block (3121).

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