Plastic hand plate model spraying device
By designing a magnet base and tray structure, and combining it with a drive motor and a micro motor, the problems of uneven coating and complex operation of plastic prototype models have been solved. This has resulted in uniform color distribution on the model surface, simplified operation, and improved work efficiency and product quality.
Patent Information
- Application Number
- CN202520789130.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-24
AI Technical Summary
Existing plastic prototype model spraying equipment suffers from uneven spraying, resulting in uneven color distribution on the model surface, affecting visual effects and realistic texture. In addition, the operation is complicated, increasing the learning curve for non-professionals, which affects work efficiency and product delivery.
The system employs a magnet base and tray structure. The iron sheet at the bottom of the tray is quickly attracted and fixed to the cylindrical magnet inside the magnet base. The drive motor rotates the tray, and the micro motor drives the nozzle to rotate, achieving uniform spraying on all surfaces of the model. The spray head can flexibly adjust the working range through the stretching pipe, simplifying the operation process.
It achieves uniform color distribution on the model surface, improves visual effects and realistic texture, simplifies the operation process, reduces the learning difficulty for non-professionals, and improves work efficiency and product delivery speed.
Smart Images

Figure CN223888281U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prototype processing technology, and in particular to a plastic prototype model spraying device. Background Technology
[0002] Plastic prototype model spraying is a key process in industrial design, product development, and small-batch trial production. It is mainly used for product appearance verification (color, texture), functional testing (weather resistance, surface hardness), and demonstration prototype production. Traditional spraying processes mainly rely on manual operation or semi-automatic equipment, which has problems such as low efficiency and poor consistency. With the development of 3D printing technology and rapid prototyping, the demand for precision spraying of small-batch, multi-variety models is increasing.
[0003] Currently, some plastic prototype model spraying devices on the market suffer from uneven spraying during the spraying process, resulting in uneven color distribution on the model surface, which affects the visual effect and realistic texture of the model. In terms of operation, existing plastic prototype model spraying devices are often designed to be relatively complex, making them inconvenient for non-professional users, especially for designers who are new to the field. They may need to spend a long time learning how to use these devices correctly, which not only increases the learning curve but also affects work efficiency and timely product delivery. Therefore, we propose a plastic prototype model spraying device. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies. Currently, some plastic prototype model spraying devices on the market suffer from uneven spraying during the spraying process, resulting in uneven color distribution on the model surface, which affects the visual effect and realistic texture of the model. In terms of operation, existing plastic prototype model spraying devices are often designed to be quite complex, making them inconvenient for non-professional users. In particular, for designers who are new to the field, they may need to spend a long time learning how to use these devices correctly, which not only increases the learning curve but also affects work efficiency and timely product delivery.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A plastic prototype model spraying device includes a spraying device body, which consists of a magnet base and a tray. The tray is placed above the magnet base. A quick connector is threaded onto one outer wall of the magnet base, and a spraying head is connected to the top of the quick connector.
[0007] Furthermore, a drive motor is provided at the bottom of the magnet base, and the output end of the drive motor extends into the magnet base and is connected to a rotating shaft. Several countersunk holes are arranged at equal intervals inside the magnet base.
[0008] Furthermore, a cylindrical magnet is embedded in the countersunk hole, and a coupling is connected to the bottom of the countersunk hole at the bottom of the cylindrical magnet, with the other end of the coupling connected to a drive motor.
[0009] Furthermore, several iron plates are equidistantly arranged on the bottom of the tray, and the iron plates are magnetically connected to the cylindrical magnets. Hand grip grooves are provided on both sides of the tray, and a first groove is provided on the bottom of the tray, with the rotating shaft engaging in the first groove.
[0010] Furthermore, a second groove is provided in the first groove. The second groove is "T" shaped, and a snap-fit block is provided on one side of the top end of the rotating shaft. The snap-fit block fits into the second groove.
[0011] Furthermore, the quick connector is provided with interfaces at both the top and the side, with the side interface connected to a spraying liquid and the top interface connected to a stretching pipe, the top of which is threadedly connected to a spraying head.
[0012] Furthermore, a base is provided at the bottom of the spray head, a nozzle is rotatably connected to the top of the base, a micro motor is installed on one side of the base, and the output end of the micro motor extends into the base and is connected to the nozzle.
[0013] Furthermore, the maximum length of the stretched pipe is greater than the height of the main body of the spraying device.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. The iron sheet at the bottom of the tray of this utility model can be quickly attracted to the cylindrical magnet in the magnet seat, realizing one-handed disassembly and assembly in seconds, eliminating the tedious operation of traditional bolt fixing. At the same time, the rotating shaft cooperates with the "T"-shaped second groove of the tray to ensure stable transmission during rotation and avoid the slippage problem that may occur during magnetic connection.
[0016] 2. The drive motor drives the magnet base and tray to rotate synchronously through the rotating shaft, so that the paint is evenly applied to all surfaces of the model, avoiding the problem of uneven coating caused by manual flipping. In addition, the micro motor drives the nozzle to rotate, enabling precise spraying of flat, curved and concave structures. At the same time, the extension pipe length exceeds the height of the device, which can flexibly adjust the working range of the spray head to cover large-sized models. Attached Figure Description
[0017] Figure 1 A schematic diagram of the overall structure of a plastic prototype model spraying device provided by this utility model;
[0018] Figure 2 A schematic diagram of the countersunk hole structure of a plastic prototype model spraying device provided by this utility model;
[0019] Figure 3 A schematic diagram of the tray bottom structure of a plastic prototype model spraying device provided by this utility model;
[0020] Figure 4 A schematic diagram of the spray head structure of a plastic prototype model spraying device provided by this utility model.
[0021] Legend: 1. Main body of the spraying device; 101. Magnet base; 102. Tray; 103. Quick connector; 104. Spray head; 105. Drive motor; 106. Rotary shaft; 107. Countersunk hole; 108. Magnet; 109. Iron sheet; 110. Hand grip groove; 111. First groove; 112. Second groove; 113. Snap-fit block; 114. Stretching pipe; 115. Base; 116. Nozzle; 117. Micro motor. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.
[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0026] Example 1
[0027] like Figure 1-4 As shown, this utility model provides a technical solution: a plastic hand model spraying device, including a spraying device body 1, which consists of a magnet base 101 and a tray 102. The tray 102 is placed above the magnet base 101. A quick connector 103 is threaded onto one side of the outer wall of the magnet base 101. A spraying head 104 is connected to the top of the quick connector 103. The tray 102 and the magnet base 101 use a high-precision neodymium iron boron magnet array combined with a precision-machined magnetic steel sheet. While ensuring an adsorption force of more than 6 kgf, it can still achieve easy separation with one hand.
[0028] Example 2
[0029] like Figure 1-4 As shown, a drive motor 105 is provided at the bottom of the magnet base 101. The output end of the drive motor 105 extends into the magnet base 101 and is connected to a rotating shaft 106. Several countersunk holes 107 are evenly arranged inside the magnet base 101. Cylindrical magnets 108, which are neodymium magnets, are embedded in the countersunk holes 107. A coupling is connected to the bottom of the countersunk hole 107 at the bottom of the cylindrical magnet 108, and the other end of the coupling is connected to the drive motor 105. Several iron plates 109 are evenly arranged on the bottom of the tray 102. The iron sheet 109 and the cylindrical magnet 108 are magnetically connected to each other. The two sides of the tray 102 are provided with handle grooves 110. The handle grooves 110 on both sides of the tray 102 facilitate handling and angle adjustment. No tools are required during operation. The bottom of the tray 102 is provided with a first groove 111. The rotating shaft 106 is engaged in the first groove 111. The first groove 111 is provided with a second groove 112. The second groove 112 is "T" shaped. A locking block 113 is provided on one side of the top of the rotating shaft 106. The locking block 113 fits into the second groove 112.
[0030] The quick connector 103 has interfaces on both its top and side. The side interface is connected to the spraying liquid, and the top interface is connected to the stretching pipe 114. The side interface is connected to the paint tank, and the top interface is connected to the stretching pipe 114, which realizes the separation and control of paint and air source to reduce residue. The top of the stretching pipe 114 is threadedly connected to the spray head 104. The bottom of the spray head 104 is provided with a base 115. The top of the base 115 is rotatably connected to the nozzle 116. The spray head 104 and the stretching pipe 114 are connected by threads, which is convenient for disassembly and assembly. When changing colors, only the quick connector 103 module needs to be replaced, and the cleaning time is shortened. A micro motor 117 is installed on one side of the base 115. The output end of the micro motor 117 extends into the base 115 and is connected to the nozzle 116. The maximum extension length of the stretching pipe 114 is greater than the height of the main body 1 of the spraying device, which can flexibly adjust the working range of the spray head 104 to cover large-size models.
[0031] The working process of this utility model is as follows: When using a plastic prototype model spraying device, the operator first places the prototype model to be sprayed on the tray 102 through the grip grooves 110 on both sides of the tray 102. The iron sheet 109 at the bottom of the tray 102 is automatically attracted and fixed to the cylindrical magnet 108 in the magnet seat 101. The snap-fit block 113 at the top of the rotating shaft 106 is precisely embedded in the second groove 112 at the bottom of the tray 102.
[0032] Then connect the side interface of the quick connector 103 to the paint supply system and the top interface to the stretching pipe 114. At the same time, turn on the drive motor 105, and drive the magnet base 101 and tray 102 to rotate synchronously through the rotating shaft 106. Then start the micro motor 117 to drive the nozzle 116 to the preset initial angle.
[0033] The coating enters the stretching pipe 114 through the side interface of quick connector 103, and the compressed air forms an atomized airflow through the top interface, which combines to form a uniform spray mist field that acts on the surface of the rotating workpiece.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A plastic prototype model spraying device, comprising a spraying device body (1), characterized in that: The main body (1) of the spraying device consists of a magnet base (101) and a tray (102). The tray (102) is placed above the magnet base (101). A quick connector (103) is threaded onto one side of the outer wall of the magnet base (101). A spraying head (104) is connected to the top of the quick connector (103).
2. The plastic prototype model spraying device according to claim 1, characterized in that: A drive motor (105) is provided at the bottom of the magnet base (101). The output end of the drive motor (105) extends into the magnet base (101) and is connected to a rotating shaft (106). A number of countersunk holes (107) are arranged at equal intervals inside the magnet base (101).
3. The plastic prototype model spraying device according to claim 2, characterized in that: A cylindrical magnet (108) is embedded in the countersunk hole (107). A coupling is connected to the bottom of the countersunk hole (107) at the bottom of the cylindrical magnet (108), and the other end of the coupling is connected to a drive motor (105).
4. The plastic prototype model spraying device according to claim 3, characterized in that: Several iron plates (109) are equidistantly arranged on the bottom of the tray (102). The iron plates (109) are magnetically connected to the cylindrical magnet (108). Hand grip grooves (110) are provided on both sides of the tray (102). A first groove (111) is provided on the bottom of the tray (102). The rotating shaft (106) is engaged in the first groove (111).
5. A plastic prototype model spraying device according to claim 4, characterized in that: A second groove (112) is provided in the first groove (111). The second groove (112) is "T" shaped. A snap-fit block (113) is provided on one side of the top end of the rotating shaft (106). The snap-fit block (113) fits into the second groove (112).
6. The plastic prototype model spraying device according to claim 1, characterized in that: The quick connector (103) has an interface on its top and side, with the side interface connected to a spraying liquid and the top interface connected to a stretching pipe (114), the top of which is threadedly connected to a spraying head (104).
7. A plastic prototype model spraying device according to claim 6, characterized in that: The bottom end of the spray head (104) is provided with a base (115), and the top end of the base (115) is rotatably connected to a nozzle (116). A micro motor (117) is installed on one side of the base (115), and the output end of the micro motor (117) extends into the base (115) and is connected to the nozzle (116).
8. A plastic prototype model spraying device according to claim 6, characterized in that: The maximum length of the stretched pipe (114) is greater than the height of the main body (1) of the spraying device.