Die surface coating machine

Abstract

The utility model discloses a mould surface coating machine, which relates to the technical field of mould coating, and comprises a storage rack, a clamping component for clamping the storage rack, a hanging rod for hanging the storage rack, a box body, a support frame, a Y-axis driving component, an X-axis driving component and a Z-axis driving component, a plurality of hanging rods are horizontally fixed on the outer wall of the box body and in the isolation cavity at uniform intervals; the supporting frame covers the periphery of the box body; the Y-axis driving assembly is installed on the supporting frame. The X-axis driving assembly is mounted on the Y-axis driving assembly; the Z-axis driving assembly is fixedly connected with the X-axis driving assembly; the clamping assembly is fixedly connected with the Z-axis driving assembly, and the clamping assembly is located above the box body. According to the die surface coating machine, each chamber can be in a use state at the same time, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold plating, in particular to a mold surface plating machine. Background Art

[0002] In order to make the mold meet the required requirements, its surface needs to be plated. However, the existing plating machines have low working efficiency.

[0003] The patent with the publication number CN220116670U discloses a mold surface plating machine, which includes a housing. A plurality of racks for placing molds are annularly arranged on the outer side surface of the housing. A connecting column is fixedly connected inside the housing. A plurality of partition plates are fixedly connected to the outer side surface of the connecting column, and the partition plates are fixedly connected to the housing. A first motor is fixedly installed at the top of the connecting column, and a moving mechanism is arranged above the first motor. The moving mechanism includes a moving block and a driving component for driving the moving block to move up and down. An electric push rod is fixedly connected to one side of the moving block, and a clamping mechanism for clamping the rack is arranged at the pushing end of the electric push rod.

[0004] In the above patent, the mold can be automatically placed into various liquids to complete processes such as degreasing, roughening, sensitization and coating, without manual placement, which reduces the labor intensity of the staff and saves time and effort. However, the inventor believes that since no component for keeping the rack stable is provided in the chamber surrounded by multiple partition plates, the clamping mechanism cannot be separated from the rack during the plating process, otherwise the rack will lean against the partition plate and be difficult to take out. That is, only one of the chambers surrounded by the partition plates is in use at the same time, and the idle chambers cannot be fully utilized, resulting in low working efficiency. Moreover, the electric push rod is of a cantilever structure, causing one-sided large stress on the first motor, the moving mechanism and the electric push rod, and is prone to damage.

[0005] Therefore, it is necessary to develop a mold surface plating machine to address the above defects. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a mold surface plating machine in which each chamber can be in use at the same time to improve the working efficiency.

[0007] To solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A mold surface plating machine of the utility model includes a rack, a clamping component for clamping the rack, and a hanging rod for hanging the rack, and further includes:

[0009] A box body, in which a plurality of isolation chambers are provided, and a plurality of the hanging rods are horizontally and fixedly arranged at equal intervals on the outer wall of the box body and in the isolation chambers;

[0010] A support frame, the support frame covering the periphery of the box body;

[0011] A Y-axis driving assembly, the Y-axis driving assembly being installed on the support frame;

[0012] An X-axis driving assembly, the X-axis driving assembly being installed on the Y-axis driving assembly;

[0013] A Z-axis driving assembly, the Z-axis driving assembly being fixedly connected to the X-axis driving assembly;

[0014] The clamping assembly is fixedly connected to the Z-axis driving assembly, and the clamping assembly is located above the box body.

[0015] Furthermore, the support frame includes a square frame, a plurality of legs being fixedly connected to the bottom surface of the square frame, the legs being located on the periphery of the box body, the square frame being located above the box body; the Y-axis driving assembly is installed on the square frame.

[0016] Furthermore, the Y-axis driving assembly includes a first screw rod, a guide rod, a first motor and a moving plate, the first screw rod being arranged along the width direction of the square frame, the first screw rod and the guide rod being arranged in parallel and both being located above the square frame, two guide rods being provided and respectively located on both sides of the first screw rod, ear plates corresponding to the guide rods being fixedly connected to two opposite beams of the square frame, the guide rods being mounted between the corresponding ear plates, support plates corresponding to the first screw rod being fixedly connected to two opposite beams of the square frame, the first screw rod being rotatably mounted between the two support plates, the first motor being fixedly connected to any one of the support plates, the output shaft of the first motor being coaxially fixedly connected to one end of the first screw rod; the two guide rods slidably penetrate through the moving plate, the first screw rod rotatably penetrates through the moving plate, and the first screw rod is threadedly connected to the moving plate; the X-axis driving assembly is installed at the bottom end of the moving plate.

[0017] Furthermore, the X-axis driving assembly includes a second screw rod, a sliding block and a second motor, fixing plates being fixedly connected to the bottom surfaces of both ends of the moving plate, the second screw rod being arranged along the length direction of the square frame and being rotatably mounted between the two fixing plates, the second motor being fixedly connected to any one of the fixing plates, the output shaft of the second motor being coaxially fixedly connected to one end of the second screw rod, the second screw rod rotatably penetrating through the sliding block, and the second screw rod being threadedly connected to the sliding block, a chute being formed on the top surface of the sliding block, the chute being slidably matched with the bottom end of the moving plate, sliders being fixedly connected to the top ends of both side walls of the chute, slideways being formed on both sides of the moving plate corresponding to the sliders, the slideways being slidably clamped with the sliders; the Z-axis driving assembly is fixedly connected to the sliding block.

[0018] Further, the Z-axis driving assembly includes telescopic rods. There are two telescopic rods, which are respectively fixed on the two side faces of the sliding block away from each other, and the clamping assembly is fixedly connected to the telescopic ends of the two telescopic rods.

[0019] Further, the clamping assembly includes a lifting plate and clamping plates. The lifting plate is located below the sliding block. The two ends of the lifting plate are respectively fixedly connected to the telescopic ends of the two telescopic rods. There are two clamping plates arranged symmetrically at intervals. A rectangular groove is formed at the top end of each clamping plate. The bottom end face of the lifting plate is slidably connected to the bottom wall of the rectangular groove, and the two side faces of the lifting plate are respectively slidably connected to the two side walls of the rectangular groove; a driving mechanism is fixed to the bottom end of the lifting plate, and the driving mechanism can drive the two clamping plates to move away from or close to each other.

[0020] Further, the driving mechanism includes a bidirectional screw rod and a third motor. Motor plates are fixed to the bottom surfaces of both ends of the lifting plate. The bidirectional screw rod is rotatably mounted between the two motor plates. The central axis of the bidirectional screw rod is perpendicular to the central axis of the hanging rod. The third motor is fixedly connected to any one of the motor plates. The output shaft of the third motor is coaxially fixedly connected to one end of the bidirectional screw rod. The clamping plates are located between the two motor plates. The bidirectional screw rod rotatably penetrates through the clamping plates. Threads with opposite helical directions are provided at both ends of the bidirectional screw rod. The two clamping plates are respectively arranged corresponding to the two ends of the bidirectional screw rod. The threaded sections at both ends of the bidirectional screw rod are respectively threadedly connected to the corresponding clamping plates.

[0021] Further, raised portions are fixed to the bottom ends of the opposite faces of the two clamping plates. Card slots for engaging with the raised portions are formed on both sides of the top end of the storage rack.

[0022] Further, the raised portion is a long strip horizontally arranged along the length direction of the clamping plate.

[0023] Further, the raised portion is a convex block arranged at intervals in a dot shape. There are at least two convex blocks, and the convex blocks are arranged at intervals along the length direction of the clamping plate.

[0024] Compared with the prior art, the beneficial technical effects of the present utility model are:

[0025] The present utility model relates to a plating machine for the surface of a mold. The clamping assembly is used to clamp the storage rack. The Z-axis drive assembly drives the clamping assembly to move up and down, so as to lift or hang the storage rack on the hanging rod. The X-axis drive assembly is used to drive the Z-axis drive assembly to move along the length direction of the support frame, so that the clamping assembly moves along the X-axis direction. The Y-axis drive assembly is used to drive the X-axis drive assembly to move along the width direction of the support frame. Then, the X-axis drive assembly drives the Z-axis drive assembly to move along the width direction of the support frame, so that the Z-axis drive assembly drives the clamping assembly to move along the Y-axis direction. In summary, since the hanging rod is provided in the isolation cavity, the clamping assembly can be separated from the storage rack during the plating process. After the clamping assembly hangs the storage rack on the hanging rod in the isolation cavity, operations can be performed on the storage racks hanging on the outer wall of the box or other storage racks in the isolation cavity, so that multiple isolation cavities can be in use at the same time, improving work efficiency.

[0026] In addition, the present utility model has a non-cantilever structure, with uniform stress during operation and not easily damaged. Brief Description of the Drawings

[0027] The present utility model will be further described below in conjunction with the drawings.

[0028] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0029] Figure 2 is a three-dimensional structure diagram of another angle of the present utility model;

[0030] Figure 3 is a three-dimensional structure diagram of the clamping assembly of the present utility model;

[0031] Figure 4 is Figure 1 an exploded structure diagram of the area indicated by A in

[0032] Figure 5 is a structural diagram of another embodiment of the convex portion.

[0033] Explanation of the reference numerals in the drawings: 1, storage rack; 101, card slot; 2, box body; 3, hanging rod; 301, limit block; 4, square frame; 5, support leg; 6, first screw rod; 7, guide rod; 8, first motor; 9, moving plate; 901, slideway; 10, second screw rod; 11, sliding block; 12, second motor; 13, telescopic rod; 14, lifting plate; 15, bidirectional screw rod; 16, clamping plate; 1601, convex portion; 17, third motor. Detailed Embodiment

[0034] The core of the present utility model is to provide a mold surface coating machine, and each chamber can be in a use state at the same time to improve work efficiency.

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0036] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "middle", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model.

[0037] In a specific embodiment of the present utility model, as Figures 1 to 5 shown, it includes a storage rack 1, a clamping assembly for clamping the storage rack 1, and a hanging rod 3 for hanging the storage rack 1, and further includes:

[0038] A box body 2, in which a plurality of isolation chambers are provided, and a number of hanging rods 3 are horizontally and fixedly arranged at equal intervals on the outer wall of the box body 2 and in the isolation chambers;

[0039] A support frame, which covers the periphery of the box body 2;

[0040] A Y-axis driving assembly, which is installed on the support frame;

[0041] An X-axis driving assembly, which is installed on the Y-axis driving assembly;

[0042] A Z-axis driving assembly, which is fixedly connected to the X-axis driving assembly;

[0043] The clamping assembly is fixedly connected to the Z-axis driving assembly, and the clamping assembly is located above the box body 2.

[0044] Specifically, a limiting block 301 is fixed on the top surface of the end of the hanging rod 3 on the outer wall of the box body 2 to prevent the storage rack 1 from slipping off the hanging rod 3 when the staff hangs the mold. The storage rack 1 and the hanging rod 3 belong to the prior art and will not be elaborated here.

[0045] The clamping assembly is used to clamp the storage rack 1. The Z-axis driving assembly drives the clamping assembly to move up and down, so as to lift or hang the storage rack 1 on the hanging rod 3. The X-axis driving assembly is used to drive the Z-axis driving assembly to move along the length direction of the support frame, so that the clamping assembly moves along the X-axis direction. The Y-axis driving assembly is used to drive the X-axis driving assembly to move along the width direction of the support frame. Then, the X-axis driving assembly drives the Z-axis driving assembly to move along the width direction of the support frame, so that the Z-axis driving assembly drives the clamping assembly to move along the Y-axis direction. In summary, since the hanging rod 3 is provided in the isolation cavity, the clamping assembly can be separated from the storage rack 1 during the plating process. After the clamping assembly hangs the storage rack 1 on the hanging rod 3 in the isolation cavity, operations can be performed on the storage rack 1 hanging on the outer wall of the box body 2 or other storage racks 1 in the isolation cavity, so that multiple isolation cavities can be in use at the same time, improving work efficiency. The utility model is a non-cantilever structure, with uniform stress during work and not easily damaged.

[0046] The support frame includes a square frame 4. A plurality of legs 5 are fixedly connected to the bottom surface of the square frame 4. The legs 5 are located outside the box body 2, and the square frame 4 is located above the box body 2. The Y-axis driving assembly is installed on the square frame 4.

[0047] The Y-axis driving assembly includes a first screw rod 6, a guide rod 7, a first motor 8 and a moving plate 9. The first screw rod 6 is arranged along the width direction of the square frame 4. The first screw rod 6 and the guide rod 7 are arranged in parallel and are both located above the square frame 4. There are two guide rods 7 and they are respectively located on both sides of the first screw rod 6. On two opposite beams of the square frame 4, ear plates corresponding to the guide rod 7 are fixed. The guide rod 7 is erected between the corresponding ear plates. On two opposite beams of the square frame 4, support plates corresponding to the first screw rod 6 are fixed. The first screw rod 6 is rotatably erected between the two support plates. The first motor 8 is fixedly connected to any one of the support plates, and the output shaft of the first motor 8 is coaxially and fixedly connected to one end of the first screw rod 6. The two guide rods 7 slidably penetrate through the moving plate 9, and the first screw rod 6 rotatably penetrates through the moving plate 9, and the first screw rod 6 is threadedly connected to the moving plate 9. The X-axis driving assembly is installed at the bottom end of the moving plate 9.

[0048] Specifically, the guide rod 7 is used to guide and support the moving plate 9. The first motor 8 drives the first screw rod 6 to rotate. The first screw rod 6 threadedly drives the moving plate 9 to slide along the Y-axis direction. Then, the moving plate 9 drives the X-axis driving assembly to move along the width direction of the support frame. Then, the X-axis driving assembly drives the Z-axis driving assembly to move along the width direction of the support frame, so that the Z-axis driving assembly drives the clamping assembly to move along the Y-axis direction.

[0049] The X-axis drive assembly includes a second screw 10, a sliding block 11, and a second motor 12. Fixed plates are fixedly connected to the bottom surfaces of both ends of the moving plate 9. The second screw 10 is arranged along the length direction of the square frame 4 and is rotatably mounted between the two fixed plates. The second motor 12 is fixedly connected to any one of the fixed plates, and the output shaft of the second motor 12 is coaxially and fixedly connected to one end of the second screw 10. The second screw 10 rotatably penetrates through the sliding block 11, and the second screw 10 is threadedly connected to the sliding block 11. A chute is formed on the top surface of the sliding block 11, and the chute is slidably engaged with the bottom end of the moving plate 9. Sliders are fixedly provided at the top ends of the two side walls of the chute. Slideways 901 corresponding to the sliders are formed on both sides of the moving plate 9, and the slideways 901 are slidably clamped with the sliders; the Z-axis drive assembly is fixedly connected to the sliding block 11.

[0050] Specifically, the second motor 12 drives the second screw 10 to rotate. The second screw 10 threadedly drives the sliding block 11 to slide in the X-axis direction. Then, the sliding block 11 drives the Z-axis drive assembly to move along the length direction of the support frame, so that the clamping assembly moves in the X-axis direction.

[0051] The Z-axis drive assembly includes telescopic rods 13. There are two telescopic rods 13, which are respectively fixed on the mutually remote side surfaces of the sliding block 11. The clamping assembly is fixedly connected to the telescopic ends of the two telescopic rods 13.

[0052] Specifically, the telescopic rod 13 can be a pneumatic telescopic cylinder, an electric telescopic cylinder, or a hydraulic telescopic cylinder. The telescopic end of the telescopic rod 13 drives the clamping assembly to lift and lower in the vertical direction.

[0053] The clamping assembly includes a lifting plate 14 and clamping plates 16. The lifting plate 14 is located below the sliding block 11. The two ends of the lifting plate 14 are respectively fixedly connected to the telescopic ends of the two telescopic rods 13. Two clamping plates 16 are symmetrically arranged at intervals. A rectangular groove is formed at the top end of the clamping plate 16. The bottom end surface of the lifting plate 14 is slidably connected to the bottom wall of the rectangular groove. The two side surfaces of the lifting plate 14 are respectively slidably connected to the two side walls of the rectangular groove; a driving mechanism is fixedly provided at the bottom end of the lifting plate 14, and the driving mechanism can drive the two clamping plates 16 to move away from or close to each other.

[0054] Specifically, the telescopic end of the telescopic rod 13 drives the lifting plate 14 to lift and lower, and then the driving mechanism and the clamping plates 16 move synchronously.

[0055] The driving mechanism includes a bidirectional screw 15 and a third motor 17. Motor plates are fixedly provided at the bottom surfaces of both ends of the lifting plate 14. The bidirectional screw 15 is rotatably mounted between the two motor plates. The central axis of the bidirectional screw 15 is perpendicularly arranged to the central axis of the hanging rod 3. The third motor 17 is fixedly connected to any one of the motor plates. The output shaft of the third motor 17 is coaxially and fixedly connected to one end of the bidirectional screw 15. The clamping plates 16 are located between the two motor plates. The bidirectional screw 15 rotatably penetrates through the clamping plates 16. Threads with opposite helix directions are provided at both ends of the bidirectional screw 15. The two clamping plates 16 are respectively arranged corresponding to both ends of the bidirectional screw 15. The threaded sections at both ends of the bidirectional screw 15 are respectively threadedly connected to the corresponding clamping plates 16.

[0056] Specifically, the third motor 17 drives the bidirectional screw 15 to rotate. The threaded sections at both ends of the bidirectional screw 15 threadedly drive the corresponding clamping plates 16, so that the two clamping plates 16 move away from or close to each other, thereby clamping or loosening the storage rack 1 with the clamping plates 16.

[0057] Protruding portions 1601 are fixedly provided at the bottom ends of the opposite surfaces of the two clamping plates 16. Card slots 101 for clamping with the protruding portions 1601 are formed at both sides of the top end of the storage rack 1.

[0058] Specifically, when the two clamping plates 16 move close to each other and the protruding portions 1601 are clamped with the card slots 101, the storage rack 1 can be firmly clamped by the two clamping plates 16, ensuring that the storage rack 1 will not fall off.

[0059] As Figure 3 shown, the protruding portion 1601 is a long strip horizontally arranged along the length direction of the clamping plate 16.

[0060] Specifically, when the long strip is clamped with the card slot 101, the storage rack 1 can also be kept balanced, preventing the storage rack 1 from rotating.

[0061] As Figure 5 shown, the protruding portion 1601 can also be convex blocks arranged at intervals in a dot shape. There are at least two convex blocks, and the convex blocks are arranged at intervals along the length direction of the clamping plate 16.

[0062] Specifically, the convex blocks arranged at intervals have the same function as the long strip, which will not be elaborated here.

[0063] It should be noted that: the X-axis is the length direction of the square frame 4, the Y-axis is the width direction of the square frame 4, and the Z-axis is the vertical direction.

[0064] The working principle of a surface plating machine for a mold of the present utility model:

[0065] The hanging rod 3. The hanging rod 3 on the outer wall of the box body 2 and in the isolation cavity is used for hanging the storage rack 1;

[0066] Clamping assembly: The third motor 17 drives the bidirectional screw 15 to rotate. The threaded sections at both ends of the bidirectional screw 15 threadedly drive the corresponding clamping plates 16, so that the two clamping plates 16 move away from or close to each other, thereby clamping or loosening the storage rack 1 with the clamping plates 16.

[0067] Z-axis drive assembly: The telescopic end of the telescopic rod 13 drives the clamping assembly to move up and down in the vertical direction, thereby lifting or hanging the storage rack 1 onto the hanging rod 3.

[0068] X-axis drive assembly: The second motor 12 drives the second screw 10 to rotate. The second screw 10 threadedly drives the sliding block 11 to slide in the X-axis direction, so that the sliding block 11 drives the Z-axis drive assembly to move along the length direction of the support frame, thereby moving the clamping assembly in the X-axis direction.

[0069] Y-axis drive assembly: The first motor 8 drives the first screw 6 to rotate. The first screw 6 threadedly drives the moving plate 9 to slide in the Y-axis direction, so that the moving plate 9 drives the X-axis drive assembly to move along the width direction of the support frame, and then the X-axis drive assembly drives the Z-axis drive assembly to move along the width direction of the support frame, thereby driving the clamping assembly to move in the Y-axis direction by the Z-axis drive assembly.

[0070] In summary, since the hanging rod 3 is provided in the isolation cavity, the clamping assembly can be separated from the storage rack 1 during the plating process. After the clamping assembly hangs the storage rack 1 onto the hanging rod 3 in the isolation cavity, operations can be performed on the storage racks 1 hanging on the outer wall of the box body 2 or other storage racks 1 in the isolation cavity, so that multiple isolation cavities can be in use at the same time, improving work efficiency.

[0071] In this specification, each embodiment is described in a progressive manner. The key points of each embodiment are the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other, and the embodiments can be combined with each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0072] The above embodiments are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A mold surface coating machine, comprising a rack (1), a clamping assembly for clamping the rack (1), and a hanging rod (3) for hanging the rack (1), characterized in that: Also includes: A box body (2), wherein a plurality of isolation chambers are provided in the box body (2), and a plurality of hanging rods (3) are evenly spaced and horizontally fixed on the outer wall of the box body (2) and in the isolation chambers; A support frame, wherein the support frame cover is arranged on the periphery of the box body (2); A Y-axis drive assembly, the Y-axis drive assembly is mounted on the support frame; An X-axis drive assembly, wherein the X-axis drive assembly is mounted on the Y-axis drive assembly; A Z-axis drive assembly, the Z-axis drive assembly is fixedly connected to the X-axis drive assembly; The clamping assembly is fixedly connected to the Z-axis driving assembly, and the clamping assembly is located above the box body (2).

2. The mold surface coating machine according to claim 1, characterized in that: The support frame comprises a square frame (4), a plurality of legs (5) are fixedly connected to the bottom surface of the square frame (4), the legs (5) are located outside the box body (2), and the square frame (4) is located above the box body (2); the Y-axis drive assembly is mounted on the square frame (4).

3. The mold surface coating machine according to claim 2, characterized in that: The Y-axis driving assembly comprises a first screw rod (6), a guide rod (7), a first motor (8) and a moving plate (9); the first screw rod (6) is arranged along the width direction of the frame (4); the first screw rod (6) and the guide rod (7) are arranged in parallel and are both located above the frame (4); two guide rods (7) are provided and are respectively located on both sides of the first screw rod (6); ear plates corresponding to the guide rod (7) are fixed on two opposite beams of the frame (4); the guide rod (7) is mounted between the corresponding ear plates; and the two opposite beams of the frame (4) are connected to the guide rod (7). A support plate corresponding to the first screw rod (6) is fixed on two opposite beams, the first screw rod (6) is rotatably mounted between the two support plates, the first motor (8) is fixedly connected to any one of the support plates, and the output shaft of the first motor (8) is coaxially fixedly connected to one end of the first screw rod (6); the two guide rods (7) slide through the movable plate (9), the first screw rod (6) rotates through the movable plate (9), and the first screw rod (6) is threadedly connected to the movable plate (9); the X-axis drive assembly is installed at the bottom end of the movable plate (9).

4. The mold surface coating machine according to claim 3, characterized in that: The X-axis driving assembly comprises a second screw rod (10), a sliding block (11) and a second motor (12). The bottom surfaces of both ends of the movable plate (9) are fixedly connected with fixed plates. The second screw rod (10) is arranged along the length direction of the square frame (4) and is rotatably mounted between the two fixed plates. The second motor (12) is fixedly connected to any of the fixed plates. The output shaft of the second motor (12) is coaxially fixedly connected to one end of the second screw rod (10). The second screw rod (10) rotates and passes through the sliding block (11). The second screw rod (10) is threadedly connected to the sliding block (11). A sliding groove is provided on the top surface of the sliding block (11). The sliding groove is slidably matched with the bottom end of the movable plate (9). Slide blocks are fixedly provided on the top ends of the two side walls of the sliding groove. Slideways (901) are provided on both sides of the movable plate (9) corresponding to the slide blocks. The slideways (901) are slidably engaged with the slide blocks. The Z-axis driving assembly is fixedly connected to the slide block (11).

5. The mold surface coating machine according to claim 4, characterized in that: The Z-axis driving assembly comprises a telescopic rod (13), wherein two telescopic rods (13) are provided and are respectively fixed to two side surfaces of the sliding block (11) that are away from each other, and the clamping assembly is fixedly connected to the telescopic ends of the two telescopic rods (13).

6. The mold surface coating machine according to claim 5, characterized in that: The clamping assembly comprises a lifting plate (14) and a clamping plate (16), wherein the lifting plate (14) is located below the sliding block (11), and the two ends of the lifting plate (14) are respectively fixedly connected to the telescopic ends of the two telescopic rods (13), and two clamping plates (16) are symmetrically arranged at intervals, and a rectangular groove is provided at the top of the clamping plate (16), and the bottom end surface of the lifting plate (14) is slidably connected to the bottom wall of the rectangular groove, and the two side surfaces of the lifting plate (14) are respectively slidably connected to the two side walls of the rectangular groove; a driving mechanism is fixed to the bottom end of the lifting plate (14), and the driving mechanism can drive the two clamping plates (16) to move away from or closer to each other.

7. The mold surface coating machine according to claim 6, characterized in that: The driving mechanism comprises a bidirectional screw (15) and a third motor (17). Motor plates are fixed to the bottom surfaces of both ends of the lifting plate (14). The bidirectional screw (15) is rotatably mounted between the two motor plates. The central axis of the bidirectional screw (15) is perpendicularly arranged to the central axis of the hanging rod (3). The third motor (17) is fixedly connected to any one of the motor plates. The output shaft of the third motor (17) is coaxially fixedly connected to one end of the bidirectional screw (15). The clamping plate (16) is located between the two motor plates. The bidirectional screw (15) rotates through the clamping plate (16). Threads with opposite rotation directions are provided at both ends of the bidirectional screw (15). The two clamping plates (16) are respectively arranged corresponding to the two ends of the bidirectional screw (15). The threaded sections at both ends of the bidirectional screw (15) are respectively threadedly connected to the corresponding clamping plates (16).

8. The mold surface coating machine according to claim 6 or 7, characterized in that: The bottom ends of the two clamping plates (16) on the opposite sides are both fixed with protrusions (1601), and both sides of the top end of the storage rack (1) are provided with slots (101) for engaging with the protrusions (1601).

9. The mold surface coating machine according to claim 8, characterized in that: The protruding portion (1601) is a long strip horizontally arranged along the length direction of the clamping plate (16).

10. The mold surface coating machine according to claim 8, characterized in that: The raised portion (1601) is a convex block arranged at intervals in a dot-like manner, at least two convex blocks are provided, and the convex blocks are arranged at intervals along the length direction of the clamping plate (16).

Images