A rotary table spraying magnetism absorbing device

The rotary spraying and magnetic attraction device automates the processing of cat-eye effect on wearable armor, solving the problems of low efficiency and poor consistency in traditional methods. It achieves a highly efficient and precise spraying and magnetic attraction process, suitable for mass production.

CN224443393UActive Publication Date: 2026-07-03GUANGDONG BOMINGRUI INTELLIGENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG BOMINGRUI INTELLIGENT TECH CO LTD
Filing Date
2025-07-16
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional nail art requires manual application of cat-eye glue to create a cat-eye effect, followed by manual transfer to a magnetic attraction station for magnetization. This process is inefficient and results in poor product consistency.

Method used

The rotary spraying and magnetic attraction device includes a rotary mechanism, a spraying mechanism, and a magnetic attraction mechanism. It achieves automated spraying and magnetic attraction through a multi-axis slide table and motor drive. Combined with curing methods such as UV LED curing lamps, it realizes automated continuous operation of spraying, magnetic attraction, and curing.

Benefits of technology

It improves processing efficiency, reduces manual operation, enhances product consistency and coating accuracy, and is suitable for mass production.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to wear and tear shell processing equipment technical field provides a carousel spraying magnetic attraction device, including work table, work table installation carousel mechanism, magnetic attraction mechanism, spraying mechanism, the carousel mechanism includes carousel, at least one's clamping seat is installed on the carousel, the clamping seat is used to bear the wear and tear shell needing processing, the magnetic attraction mechanism is used to carry out the magnetic attraction to the wear and tear shell setting on the clamping seat, the spraying mechanism includes multiaxis sliding table, multiaxis sliding table installs the spray head. In the utility model, through setting carousel mechanism, spraying mechanism and the collaborative work of magnetic attraction mechanism, realized the automation operation of wear and tear shell cat eye effect processing process, effectively reduced the tedious step of manual coating cat eye glue and handling work piece in traditional craft, significantly improved production efficiency and product consistency, reduced the labor intensity, satisfied the mass, large -scale production demand.
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Description

Technical Field

[0001] This utility model relates to the field of wearable armor processing equipment technology, and in particular to a rotary spraying magnetic device. Background Technology

[0002] With the continuous development of the nail art industry, wearable nails are increasingly favored by consumers due to their convenience and aesthetics. Among them, the cat-eye effect, as a popular decorative technique, is widely used in the surface treatment of wearable nails. The traditional process for achieving a cat-eye effect typically involves manually applying a cat-eye gel containing magnetic materials, followed by placing the wearable nail under a magnetic adsorption device for magnetic adhesion and shaping to create a specific light reflection effect. This process relies heavily on manual labor, is not only labor-intensive but also has low production efficiency, making it difficult to meet the demands of modern industrialized mass production.

[0003] Existing cat-eye glue coating equipment is mostly semi-automatic or manual, and problems such as uneven spraying and inaccurate positioning are common, resulting in poor product consistency. In addition, after coating, the wearable armor needs to be manually transferred to the magnetic attraction station, which increases the process connection time and is also prone to product damage or positional displacement, affecting the quality of the final product.

[0004] The purpose of this invention is to solve the problem of low processing efficiency in traditional wearable nails, which require manual application of cat-eye glue and then manual movement of the wearable nail to the magnetic attraction station to attract magnets when creating a cat-eye effect. Utility Model Content

[0005] The purpose of this invention is to solve the problem of low processing efficiency in traditional wearable nails, which require manual application of cat-eye glue and then manual movement of the nail to a magnetic attraction station to achieve the cat-eye effect. This invention adopts the following technical solution:

[0006] A rotary spraying and magnetic attraction device includes a worktable, on which a rotary mechanism, a magnetic attraction mechanism, and a spraying mechanism are mounted. The rotary mechanism includes a turntable, on which at least one holder is mounted for holding wearable armor to be processed. The magnetic attraction mechanism is used to attract the wearable armor placed on the holder and magnetize it. The spraying mechanism includes a multi-axis slide table, on which a spray head is mounted.

[0007] As described above, in a rotary spraying magnetic attraction device, the multi-axis slide includes a Y-axis driver, an X-axis driver, and a Z-axis driver. The Y-axis driver is used to drive the nozzle to move in the Y-axis direction, the X-axis driver is used to drive the nozzle to move in the X-axis direction, and the Z-axis driver is used to drive the nozzle to move in the Z-axis direction.

[0008] As described above, in a rotary spraying magnetic attraction device, the Y-axis driver, the X-axis driver, and the Z-axis driver are all provided with slide rails and slide blocks. The slide blocks are slidably engaged with the slide rails. The slide block of the Y-axis driver is fixedly connected to the slide rail of the X-axis driver. The slide block of the X-axis driver is fixedly connected to the slide rail of the Z-axis driver. The slide block of the Z-axis driver is fixedly connected to the spray head.

[0009] As described above, a turntable spraying magnetic attraction device includes a motor, which is fixedly connected to the worktable and driven by the turntable. The motor is used to drive the turntable to rotate.

[0010] As described above, in a rotary coating magnetic attraction device, the card holder includes an L-shaped block, and one end of the L-shaped block has a card slot.

[0011] As described above, in a rotary coating magnetic attraction device, the card holder includes a base plate mounted on the rotary table, and the base plate is equipped with at least two L-shaped blocks.

[0012] As described above, a rotary spraying magnetic attraction device includes a second motor, which is connected to a magnet block. The second motor drives the magnet block to rotate, and the magnet block is used to attract the magnets to the wearable nail after it has been coated with cat's eye glue.

[0013] As described above, a rotary spraying magnetic attraction device includes a curing mechanism for curing the effect of the worn armor after magnetic attraction. The curing mechanism is one or more of the following: a UV LED curing lamp source, a thermal energy radiation curing source, and an electron beam curing source.

[0014] As described above, in a rotary coating magnetic attraction device, the card holders are arranged in a ring array around the center of the rotary disk.

[0015] Implementing the embodiments of this utility model has the following beneficial effects:

[0016] 1. In this utility model, by setting up a turntable mechanism, a spraying mechanism and a magnetic attraction mechanism to work together, the processing of the cat-eye effect of the wearable armor is automated. This effectively reduces the tedious steps of manually applying cat-eye glue and handling workpieces in the traditional process, significantly improves production efficiency and product consistency, reduces labor intensity, and meets the needs of mass production and large-scale production.

[0017] In summary, this invention solves the problem of low processing efficiency in traditional wearable nails when creating a cat-eye effect, which requires manually applying cat-eye glue and then manually moving the wearable nail to the magnetic attraction station for magnetic attraction. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a rotary spraying magnetic attraction device according to this utility model.

[0020] Figure 2 This is a diagram of the spraying mechanism of a rotary spraying magnetic attraction device according to this utility model.

[0021] Figure 3 This is a schematic diagram of the turntable mechanism of a turntable spraying magnetic attraction device according to this utility model.

[0022] Figure 4 This is a schematic diagram of the card holder of a rotary spraying magnetic attraction device according to this utility model. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 4As shown, this utility model proposes a rotary spraying and magnetic attraction device, including a worktable 1. The worktable 1 is equipped with a rotary mechanism 2, a magnetic attraction mechanism 3, and a spraying mechanism 4. The rotary mechanism 2 includes a turntable 21, on which at least one holder 23 is mounted. The holder 23 is used to support the wearable armor to be processed. The magnetic attraction mechanism 3 is used to magnetically attract the wearable armor placed on the holder 23. The spraying mechanism 4 includes a multi-axis slide table, on which a spray head 44 is mounted. The wearable armor to be processed is supported by the holder 23 on the rotary mechanism 2. The rotary mechanism 2 drives the holder 23 to rotate, so that the wearable armor passes through each processing station in sequence. When the wearable armor is at the spraying station, the multi-axis slide table in the spraying mechanism 4 controls the spray head 44 to precisely and automatically spray cat-eye glue onto the surface of the wearable armor. Subsequently, the rotary mechanism 2 continues to rotate, transferring the wearable armor to the magnetic attraction station, where the magnetic attraction mechanism 3 magnetically attracts it, thereby realizing continuous and automated production. This effectively reduces manual coating and handling operations, significantly improving processing efficiency and product consistency. Simultaneously, the precise spraying from nozzle 44 enhances product quality, reduces labor intensity, and is suitable for large-scale, mass production needs. The wearable armor is placed onto the holder 23.

[0025] Further, as a preferred embodiment of the present invention and not a limitation thereof, the multi-axis slide includes a Y-axis driver 41, an X-axis driver 42, and a Z-axis driver 43. The Y-axis driver 41 is used to drive the nozzle 44 to move in the Y-axis direction, the X-axis driver 42 is used to drive the nozzle 44 to move in the X-axis direction, and the Z-axis driver 43 is used to drive the nozzle 44 to move in the Z-axis direction. Each of the Y-axis driver 41, the X-axis driver 42, and the Z-axis driver 43 is provided with a slide rail and a slide block. The slide block is slidably engaged with the slide rail. The slide block of the Y-axis driver 41 is fixedly connected to the slide rail of the X-axis driver 42, the slide block of the X-axis driver 42 is fixedly connected to the slide rail of the Z-axis driver 43, and the slide block of the Z-axis driver 43 is fixedly connected to the nozzle 44. A flipping drive mechanism is also included. The X-axis driver 41 achieves the reciprocating movement of the nozzle in the Y-axis direction through its slide rail and slide block. The slide block of the X-axis driver 42 is fixed on the slide block of the Y-axis driver 41 and drives the Z-axis driver 43 and its slide rail to move along the X-axis direction. Similarly, the slide block of the Z-axis driver 43 is fixedly connected to the nozzle 44, thereby realizing the up-and-down movement of the nozzle in the Z-axis direction. Through the coordinated control of the three directional drivers, the nozzle 44 can move precisely along a preset path in three-dimensional space to complete the automated spraying of cat-eye glue on the surface of the wearable armor. The nozzle 44 has the ability to move flexibly in three-dimensional space, improving the accuracy and adaptability of spraying and meeting the spraying needs of wearable armor of different shapes and sizes.

[0026] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the turntable 21 includes a motor 22, which is fixedly connected to the worktable 1 and driven by the turntable 21. The motor 22 drives the turntable 21 to rotate. The rotation of the motor 22 causes the turntable 21 to rotate according to a set cycle. The turntable 21 is provided with at least one holder 23 for carrying the wearable armor, and the wearable armor is sequentially delivered to different processing positions such as the spraying station and the magnetic attraction station along with the turntable 21, realizing automated continuous operation of multiple processes.

[0027] Furthermore, as a preferred embodiment of the invention and not a limitation thereof, the card holder 23 includes an L-shaped block 232, one end of which has a slot 233. The card holder 23 includes a base plate 231 mounted on the turntable 21, and at least two L-shaped blocks 232 are mounted on the base plate 231. The wearable armor is placed in the slot 233 and is stably positioned by the limiting effect of the L-shaped blocks 232. The multiple L-shaped blocks 232 are symmetrically arranged to accommodate wearable armor of different sizes and shapes, ensuring that it remains stable during the rotation of the turntable 21 and does not shift or fall off, thereby ensuring the accuracy of subsequent spraying and magnetization processes.

[0028] Optionally, in some embodiments, the card holders 23 are arranged in a circular array around the center of the turntable 21. Multiple card holders 23 are evenly distributed on the turntable 21, and each card holder 23 can hold the wearable armor to be processed. Driven by the motor 22, as the turntable 21 rotates, each card holder 23 sequentially passes through different processing positions such as the spraying station and the magnetic attraction station, realizing continuous cyclic processing of the wearable armor. This layout helps improve space utilization and ensures more efficient and orderly collaborative operation between the workstations.

[0029] Furthermore, as a preferred embodiment of the invention and not a limitation thereof, the magnetic attraction mechanism 3 includes a second motor, which is driven by a magnet block. The second motor drives the magnet block to rotate, and the magnet block is used to attract the wearable armor after it has been coated with cat-eye glue. The magnetic attraction device includes a curing mechanism, which is used to cure the effect of the wearable armor after magnetic attraction. The curing mechanism is one or more of a UV LED curing source, a thermal energy radiation curing source, and an electron beam curing source. The second motor drives the magnet block to rotate. After the wearable armor has finished spraying the cat-eye glue and is transported to the magnetic attraction station, the magnetic field is used to directionally attract the magnetic material, thereby forming a clear and uniform cat-eye effect. At the same time, the magnetic attraction mechanism 3 also integrates a curing mechanism, which can cure the cat-eye glue on the wearable armor immediately after magnetic attraction.

[0030] Optionally, in some embodiments, the workbench is equipped with an automatic loading and unloading device, which is used to place the wearable armor on or remove it from the card holder 23. The automatic loading and unloading device is a robotic arm that uses mechanical clamps and suction cups. The suction cups pick up the wearable armor and place it on the card holder 23. After the magnetic cat's eye is sprayed, it is automatically picked up and stored in the finished box.

[0031] Example 1:

[0032] This invention proposes a rotary spraying and magnetic attraction device, comprising a worktable 1, on which a rotary mechanism 2, a magnetic attraction mechanism 3, and a spraying mechanism 4 are mounted. The rotary mechanism 2 includes a turntable 21, on which at least one holder 23 is mounted. The holder 23 is used to support the wearable armor to be processed. The magnetic attraction mechanism 3 is used to magnetically attract the wearable armor placed on the holder 23. The spraying mechanism 4 includes a multi-axis slide, on which a spray head 44 is mounted. The wearable armor to be processed is supported by the holder 23 on the rotary mechanism 2. The rotary mechanism 2 drives the holder 23 to rotate, causing the wearable armor to pass through each processing station in sequence. When the wearable armor is at the spraying station, the multi-axis slide in the spraying mechanism 4 controls the spray head 44 to precisely and automatically spray cat-eye glue onto the surface of the wearable armor. Subsequently, the rotary mechanism 2 continues to rotate, transferring the wearable armor to the magnetic attraction station, where the magnetic attraction mechanism 3 magnetically attracts it, thereby achieving continuous and automated production. It effectively reduces manual coating and handling operations, significantly improving processing efficiency and product consistency; at the same time, the precise spraying of nozzle 44 improves product quality, reduces labor intensity, and is suitable for mass production needs.

[0033] The multi-axis slide includes a Y-axis driver 41, an X-axis driver 42, and a Z-axis driver 43. The Y-axis driver 41 drives the nozzle 44 to move in the Y-axis direction, the X-axis driver 42 drives the nozzle 44 to move in the X-axis direction, and the Z-axis driver 43 drives the nozzle 44 to move in the Z-axis direction. Each of the Y-axis driver 41, X-axis driver 42, and Z-axis driver 43 is equipped with a slide rail and a slide block. The slide block and the slide rail are slidably connected. The slide block of the Y-axis driver 41 is fixedly connected to the slide rail of the X-axis driver 42, the slide block of the X-axis driver 42 is fixedly connected to the slide rail of the Z-axis driver 43, and the slide block of the Z-axis driver 43 is fixedly connected to the nozzle 44. A tilting drive mechanism is also included. The X-axis driver 41 achieves the reciprocating movement of the nozzle in the Y-axis direction through its slide rail and slide block. The slide block of the X-axis driver 42 is fixed on the slide block of the Y-axis driver 41 and drives the Z-axis driver 43 and its slide rail to move along the X-axis direction. Similarly, the slide block of the Z-axis driver 43 is fixedly connected to the nozzle 44, thereby realizing the up-and-down movement of the nozzle in the Z-axis direction. Through the coordinated control of the three directional drivers, the nozzle 44 can move precisely along a preset path in three-dimensional space to complete the automated spraying of cat-eye glue on the surface of the wearable armor. The nozzle 44 has the ability to move flexibly in three-dimensional space, improving the accuracy and adaptability of spraying and meeting the spraying needs of wearable armor of different shapes and sizes.

[0034] The turntable 21 includes a motor 22, which is fixedly connected to the worktable 1 and driven by the turntable 21. The motor 22 drives the turntable 21 to rotate. The rotation of the motor 22 causes the turntable 21 to rotate according to a set cycle. The turntable 21 is equipped with at least one mounting bracket 23 for carrying the wearable armor and sequentially delivering it to different processing positions such as the spraying station and the magnetic attraction station, achieving automated continuous operation of multiple processes. The mounting bracket 23 includes an L-shaped block 232, one end of which has a slot 233. The mounting bracket 23 includes a base plate 231 mounted on the turntable 21, with at least two L-shaped blocks 232 mounted on the base plate 231. The wearable armor is placed in the slot 233 and stably positioned by the limiting action of the L-shaped blocks 232. Multiple L-shaped blocks 232 are symmetrically arranged to accommodate wearable armor of different sizes and shapes, ensuring stability during the rotation of the turntable 21 and preventing displacement or detachment, thus guaranteeing the accuracy of subsequent spraying and magnetization processes. The mounting brackets 23 are arranged in a circular array around the center of the turntable 21. Multiple mounting brackets 23 are evenly distributed on the turntable 21, each capable of holding a piece of wearable armor to be processed. Driven by the motor 22, as the turntable 21 rotates, each mounting bracket 23 sequentially passes through different processing positions such as the spraying station and the magnetization station, achieving continuous cyclic processing of the wearable armor. This layout helps improve space utilization and ensures more efficient and orderly collaborative work between stations.

[0035] The magnetic attraction mechanism 3 includes a second motor, which is connected to a magnet block. The second motor drives the magnet block to rotate, and the magnet block is used to attract the wearable nail after it has been coated with cat-eye glue. The magnetic attraction device includes a curing mechanism, which is used to cure the effect of the wearable nail after magnetic attraction. The curing mechanism is one or more combinations of UV LED curing light source, thermal energy radiation curing source, and electron beam curing source. The second motor drives the magnet block to rotate. After the wearable nail has finished spraying the cat-eye glue and is transported to the magnetic attraction station, the magnetic field is used to directionally attract the magnetic material, thereby forming a clear and uniform cat-eye effect. At the same time, the magnetic attraction mechanism 3 also integrates a curing mechanism, which can cure the cat-eye glue on the wearable nail immediately after magnetic attraction. Through the spraying, magnetic attraction, and curing stages, and finally placed back on the finished product area, this device completes the spraying and magnetic attraction process.

[0036] Example 2:

[0037] The workbench is equipped with an automatic loading and unloading device. The automatic loading and unloading device is used to place the wearable armor on the card holder 23 or remove it from the card holder 23. The automatic loading and unloading device is a robotic arm that uses mechanical clamps and suction cups. The suction cups pick up the wearable armor and place it on the card holder 23. After the magnetic cat eye is sprayed, it is automatically picked up and stored on the finished box.

[0038] Specifically, the working principle of this invention is as follows:

[0039] At the start of the process, the wearable armor to be processed is placed in the slot 233 of the clamping seat 23 and stably held by the L-shaped block 232. The motor 22 drives the turntable 21 to rotate, causing multiple clamping seats 23 to enter each workstation in a circular array around the center of the turntable 21, realizing the orderly flow of wearable armor.

[0040] Once the wearable armor arrives at the spraying station along with the mounting bracket 23, the spraying mechanism 4 is activated. A multi-axis slide, consisting of a Y-axis driver 41, an X-axis driver 42, and a Z-axis driver 43, moves in tandem, controlling the nozzle 44 to move along a set path in three-dimensional space and automatically spray cat-eye adhesive onto the surface of the wearable armor. The nozzle 44 can be flexibly positioned according to different product shapes to ensure uniform and precise spraying.

[0041] After the coating is completed, the wearable armor continues to rotate with turntable 21 to the magnetic attraction station. The magnetic attraction mechanism 3 is activated, and the second motor drives the magnet block to rotate. Under the action of the magnetic field, the magnetic material in the cat-eye glue is directionally attracted to form a cat-eye effect. Then the curing mechanism is activated, and the cat-eye glue is quickly cured using UV LED, heat energy or electron beam, etc., to complete the entire processing flow. Finally, the finished product is removed manually and enters the next cycle.

[0042] In summary, this invention solves the problem of low processing efficiency in traditional wearable nails, which require manual application of cat-eye glue and then manual movement of the wearable nail to the magnetic attraction station to achieve the cat-eye effect.

[0043] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A carousel spray magnetising apparatus comprising a table (1) characterised in that, The workbench (1) is equipped with a turntable mechanism (2), a magnetic attraction mechanism (3), and a spraying mechanism (4). The turntable mechanism (2) includes a turntable (21), on which at least one card holder (23) is installed. The card holder (23) is used to carry the armor to be processed. The magnetic attraction mechanism (3) is used to attract the armor set on the card holder (23). The spraying mechanism (4) includes a multi-axis slide, on which a spray nozzle (44) is installed.

2. A rotating disc spray magnetising apparatus as claimed in claim 1 wherein, The multi-axis slide includes a Y-axis driver (41), an X-axis driver (42), and a Z-axis driver (43). The Y-axis driver (41) is used to drive the nozzle (44) to move in the Y-axis direction, the X-axis driver (42) is used to drive the nozzle (44) to move in the X-axis direction, and the Z-axis driver (43) is used to drive the nozzle (44) to move in the Z-axis direction.

3. The rotary spraying magnetic attraction device according to claim 2, characterized in that, The Y-axis driver (41), the X-axis driver (42), and the Z-axis driver (43) are all provided with slide rails and slide blocks. The slide blocks are slidably engaged with the slide rails. The slide block of the Y-axis driver (41) is fixedly connected to the slide rail of the X-axis driver (42). The slide block of the X-axis driver (42) is fixedly connected to the slide rail of the Z-axis driver (43). The slide block of the Z-axis driver (43) is fixedly connected to the nozzle (44).

4. A rotating disc spray magnetising apparatus as claimed in claim 1 wherein, The turntable (21) includes a motor (22), which is fixedly connected to the worktable (1) and is driven by the turntable (21). The motor (22) is used to drive the turntable (21) to rotate.

5. A rotating disc spray magnetising apparatus as claimed in claim 1 wherein, The card holder (23) includes an L-shaped block (232), and a card slot (233) is provided at one end of the L-shaped block (232).

6. A rotating disc spray magnetising apparatus as claimed in claim 5, wherein, The card holder (23) includes a base plate (231) mounted on the turntable (21), and the base plate (231) is equipped with at least two L-shaped blocks (232).

7. A rotating disc spray magnetising apparatus as claimed in claim 1 wherein, The magnetic attraction mechanism (3) includes a second motor, which is connected to a magnet block. The second motor is used to drive the magnet block to rotate, and the magnet block is used to attract the magnets of the wearable nail after it has been coated with cat eye glue.

8. A rotating disc spray magnetising apparatus as claimed in claim 1 wherein, The magnetic attraction device includes a curing mechanism, which is used to cure the effect of the worn armor after magnetic attraction. The curing mechanism is one or more of the following: a UV LED curing lamp source, a thermal energy radiation curing source, and an electron beam curing source.

9. A rotating disc spray magnetising apparatus as claimed in claim 1 wherein, The card holders (23) are arranged in a ring array around the center of the turntable (21).