A mobile phone accessory shell flocking device
By employing plasma surface treatment, ring spraying, adhesive spraying, and electrostatic flocking technologies, the problems of insufficient cushioning protection and aesthetics in mobile phone cases have been solved, achieving uniform spraying, firm flocking adhesion, and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN NANHAI DISTRICT BAILAILI PLASTIC PRODUCTS CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-09
AI Technical Summary
Existing phone cases lack sufficient cushioning and protection, easily scratching the camera lens. The obvious mold lines affect the aesthetics and feel, and ordinary materials are easily scratched, dirty, and yellowed.
The process involves using a plasma surface treatment machine to remove oil and dust, a ring sprayer to achieve uniform spraying, a glue sprayer to precisely control the amount of glue, a flocking machine to use electrostatic flocking technology to ensure uniform flocking, and a baking machine to shape and dry the product, forming a streamlined processing line.
The phone case has improved cushioning and protection, preventing scratches on the camera lens. The fine molding lines enhance its appearance and feel, while the firmly attached velour prevents it from falling off, extending its lifespan.
Smart Images

Figure CN224332628U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flocking technology for mobile phone accessory shells, specifically to a flocking device for mobile phone accessory shells. Background Technology
[0002] Phone cases protect and decorate mobile phones, providing drop protection, scratch protection, water resistance, and shock absorption, reducing the risk of damage. Through patterns, materials, or custom designs, they can showcase the user's style and become a fashion accessory.
[0003] In related technologies, the protective performance of ordinary phone cases varies depending on the material. When a phone is impacted, the cushioning protection for the back of the phone is relatively weak, making the phone more susceptible to damage. For phones with protruding cameras, ordinary phone cases, without special design features, allow the camera to more easily rub against surfaces when placed on the phone, causing scratches. Some ordinary phone case materials, such as PC cases, lack sufficient hardness and are easily scratched, with smooth surfaces that are prone to getting dirty and yellowing. In terms of manufacturing processes, ordinary phone cases often have noticeable parting lines, affecting the overall aesthetics and feel. Therefore, it is necessary to optimize the phone case manufacturing process. Utility Model Content
[0004] The purpose of this utility model is to provide a flocking device for mobile phone accessory shells to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a flocking equipment for mobile phone accessory shells, characterized in that it includes a plasma surface treatment machine, the plasma surface treatment machine having a gantry frame, and plasma nozzles installed on the gantry frame. The plasma can remove oil stains, dust and other impurities from the surface of the mobile phone accessory shell, and at the same time activate the surface, creating favorable conditions for subsequent processes. Through the plasma nozzles on the gantry frame, the surface of the mobile phone accessory shell can be treated comprehensively and uniformly.
[0006] A circular spraying machine is provided, which is equipped with several rotating clamps and an adjustment bracket group in the middle of the machine. The adjustment bracket group is equipped with a spray head, which can realize multi-angle spraying, making the spraying more uniform, avoiding spraying dead corners, and improving the spraying quality.
[0007] The glue spraying machine has a glue spraying head installed by a cylinder. A clamp is placed below the glue spraying head to achieve precise control of the glue spraying amount, ensuring that the glue spraying amount on the surface of each mobile phone accessory shell is uniform and consistent, and avoiding poor flocking effect caused by too much or too little glue.
[0008] The flocking machine electrostatically flocks the surface of the mobile phone accessory shell after spraying glue. The electrostatic flocking technology allows the flock to be evenly attached to the surface of the mobile phone accessory shell after spraying glue under the action of an electrostatic field. The flocking effect is more delicate and uniform, and the flock has stronger adhesion and is not easy to fall off.
[0009] The baking machine is used to shape and dry the flocking on the surface of the mobile phone accessory shell, so that the flocking is firmly attached to the surface of the mobile phone accessory shell, avoiding the flocking from falling off or deforming due to failure to dry in time, and ensuring the stability of the flocking effect.
[0010] Furthermore, the plasma surface treatment machine, glue spraying machine, flocking machine, and baking machine are all equipped with conveyors, which facilitates the assembly line processing of mobile phone accessory shells and enables fast production.
[0011] Furthermore, the rotating clamp includes a support rod with a support ring, and a placement plate is sleeved on the support rod. The placement plate is provided with a limiting seat corresponding to the mobile phone accessory shell. The placement plate can rotate, and the mobile phone accessory shell is placed in the limiting seat. The airflow of the annular spraying machine is used to push the mobile phone accessory shell to rotate, so as to achieve uniform spraying of the mobile phone accessory shell.
[0012] Furthermore, the positioning support assembly includes a column, which is connected to a crossbar via cross-shaped clamps. The spray head is connected to the crossbar via a single clamp, allowing for flexible adjustment of the spray head's position and making it convenient to use.
[0013] Furthermore, a hot air blower is installed on the upper surface of the baking machine, and an air inlet box is installed at the air inlet of the hot air blower. A filter plate is inserted into the air inlet box, which can reduce impurities in the flocking and improve the flocking quality.
[0014] A flocking process for mobile phone accessory cases includes the following steps:
[0015] S1, The mobile phone accessory case is placed on the plasma surface treatment machine, and the plasma surface treatment machine removes the stains from the surface of the mobile phone accessory case.
[0016] S2, After cleaning the stains, place the mobile phone accessory case on the circular spraying machine, and the circular spraying machine sprays a primer onto the surface of the mobile phone accessory case;
[0017] S3, fit the clamp onto the phone accessory case and place it in the glue spraying machine, the glue spraying machine sprays glue onto the surface of the phone accessory case;
[0018] S4, The mobile phone accessory shell after the glue spraying is completed is sent to the flocking machine, and the flocking machine performs electrostatic flocking on the surface of the mobile phone accessory shell.
[0019] S5, after the surface of the mobile phone accessory case is flocked, it is sent to the baking machine, which shapes and dries the flocked fibers on the surface of the mobile phone accessory case.
[0020] After drying the flocked surface of the S6 phone accessory case, remove the clamps and use a high-pressure air gun to blow away the excess flocking.
[0021] Furthermore, the vertical implantation density of the pile on the surface of the mobile phone accessory shell is >8000 piles / cm², the pile peeling strength is >3N / cm, and the pile surface flatness and color fastness are ≥4 levels.
[0022] Compared with the prior art, the beneficial effects of this utility model are:
[0023] (1) The plasma surface treatment machine can effectively remove stains, oil and impurities from the surface of mobile phone accessory cases, while activating the surface and improving the adhesion of subsequent coatings. The cleaning method is more efficient and thorough. The sprayed primer further enhances the bonding ability between the surface of the mobile phone accessory case and the adhesive, ensuring that the adhesive can be evenly and firmly attached to the surface, thereby improving the durability of the flocking effect.
[0024] (2) Electrostatic flocking can make the flocking fibers adhere vertically and evenly to the surface of the mobile phone accessory shell under the action of electrostatic field. The baking machine shapes and dries the flocked mobile phone accessory shell to ensure that the flocking fibers are firmly attached to the surface and avoid the flocking fibers falling off or deforming due to failure to dry in time, thereby ensuring the quality stability of the product.
[0025] (3) Flocking process can add texture to mobile phone accessory cases, enhance visual effect, meet consumers' demand for personalization, prevent the back of the phone from being scratched, and provide a certain cushioning effect to reduce the impact on the phone when dropped. There is flocking around the lens hole of the mobile phone accessory case to protect the phone lens. The parting line of the flocked mobile phone accessory case is processed more finely and is not easy to detect. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall device of this utility model;
[0027] Figure 2 This is a schematic diagram showing the connection between the placement plate and the support rod of this utility model;
[0028] Figure 3 This is a schematic diagram of the connection between the crossbar and the column of this utility model;
[0029] Figure 4 This is a process flow diagram of the present invention.
[0030] In the diagram: 1. Plasma surface treatment machine; 2. Conveyor; 3. Plasma nozzle; 4. Gantry frame; 5. Circular spraying machine; 7. Placement plate; 8. Limiting seat; 9. Support ring; 10. Support rod; 11. Glue spraying machine; 12. Cylinder; 13. Glue spraying head; 15. Fixture; 16. Flocking machine; 18. Baking machine; 19. Hot air blower; 20. Air inlet box; 21. Filter plate; 23. Crossbar; 24. Column; 25. Spray head; 26. Cross clamping block; 27. Single clamping block. Detailed Implementation
[0031] 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.
[0032] Example:
[0033] Please see Figure 1-4 This utility model provides a technical solution: a mobile phone accessory shell flocking equipment, including a plasma surface treatment machine 1, the plasma surface treatment machine 1 having a gantry frame 4, the gantry frame 4 having a plasma nozzle 3 installed on the gantry frame 4, the gantry frame 4 controlling the plasma nozzle 3 to move left and right, the plasma nozzle 3 cleaning the arranged mobile phone shells;
[0034] A ring-shaped spraying machine 5 is equipped with several rotating clamps. An adjustment bracket group is installed in the middle of the ring-shaped spraying machine 5. A spray head 25 is installed on the adjustment bracket group. The several rotating clamps hold mobile phone accessory shells. The adjustment bracket group makes the spray head 25 aligned with the mobile phone accessory shell. The airflow from the spray head 25 makes the mobile phone accessory shell rotate during the spraying process, so as to achieve full spraying of the mobile phone accessory shell.
[0035] The glue spraying machine 11 has a glue spraying head 13 mounted on a cylinder 12. A clamp 15 is placed below the glue spraying head 13. The clamp 15 can cover the area that does not need to be sprayed with glue. The cylinder 12 controls the glue spraying head 13 to move up and down. At the same time, another cylinder 12 can be used to control the glue spraying head 13 to move left and right, which is convenient for spraying glue on multiple rows of mobile phone accessory shells.
[0036] The flocking machine 16 electrostatically flocks the surface of the mobile phone accessory shell after spraying glue. The electrostatic flocking makes the flock evenly attached to the surface, and the flock has stronger adhesion and is not easy to fall off.
[0037] The baking machine 18 shapes and dries the flocking on the surface of the mobile phone accessory shell, so that the flocking is firmly attached to the surface of the mobile phone accessory shell, avoiding the flocking from falling off or deforming due to failure to dry in time, ensuring the stability of the flocking effect, allowing the sprayed adhesive and flocking layer to fully cure, improving the overall quality and durability of the mobile phone accessory shell, and extending the service life of the flocked mobile phone accessory shell.
[0038] In this embodiment, as Figure 1 As shown, the plasma surface treatment machine 1, the glue spraying machine 11, the flocking machine 16, and the baking machine 18 are all equipped with conveyors 2, which facilitates assembly line processing and improves the processing efficiency of mobile phone accessory shells.
[0039] In this embodiment, as Figure 2 As shown, the rotating clamp includes a support rod 10 with a support ring 9. A placement plate 7 is sleeved on the support rod 10. The placement plate 7 can rotate on the support rod 10. Therefore, when the airflow blows the mobile phone accessory shell, the mobile phone accessory shell and the placement plate 7 rotate together, which can realize the rotational spraying of the mobile phone accessory shell.
[0040] In this embodiment, as Figure 2 As shown, the placement plate 7 is provided with a limiting seat 8 corresponding to the mobile phone accessory case. The limiting seat 8 can hold the mobile phone accessory case in place, ensuring that the mobile phone accessory case will not fall off and improving the stability of the placement of the mobile phone accessory case.
[0041] In this embodiment, as Figure 3 As shown, the adjustment bracket assembly includes a column 24, which is connected to a crossbar 23 via a cross clamp 26. The spray head 25 is connected to the crossbar 23 via a single clamp 27. The spray head 25 can be adjusted up, down, left, right, and rotated. The spray head 25 is flexible and can be accurately aligned with the mobile phone accessory case.
[0042] In this embodiment, as Figure 1 As shown, a hot air blower 19 is installed on the upper surface of the baking machine 18. An air inlet box 20 is installed at the air inlet of the hot air blower 19. A filter plate 21 is inserted into the air inlet box 20. The filter plate 21 can prevent dust from being sucked in by the hot air blower 19. The filter plate 21 can be replaced by pulling it out, which is convenient to use and operate.
[0043] A flocking process for mobile phone accessory cases, such as Figure 4 As shown, it includes the following steps:
[0044] 1. Place the mobile phone accessory cases on the plasma surface treatment machine 1, and evenly distribute the mobile phone accessory cases on the conveyor 2. The plasma surface treatment machine 1 removes the stains on the surface of the mobile phone accessory cases. The conveyor 2 slowly transports the mobile phone accessory cases to the bottom of the plasma nozzle 3. The gantry 4 drives the plasma nozzle 3 to move left and right to clean all the mobile phone accessory cases.
[0045] 2. After cleaning the stains, place the mobile phone accessory case on the ring sprayer 5. The ring sprayer 5 sprays a primer on the surface of the mobile phone accessory case. The ring sprayer 5 drives the mobile phone accessory case to pass through the spray head 25 in sequence. The airflow and primer sprayed from the spray head 25 make the mobile phone accessory case rotate, which can spray the primer all over the mobile phone accessory case.
[0046] 3. Place the clamp 15 on the mobile phone accessory shell and put it into the glue spraying machine 11. The glue spraying machine 11 sprays glue onto the surface of the mobile phone accessory shell. The parts that do not need to be sprayed with glue are blocked by the clamp 15. The glue sprayed by the glue spraying machine 11 can improve the bonding strength when combined with the primer.
[0047] 4. After the glue spraying is completed, the mobile phone accessory shell is sent to the flocking machine 16. The flocking machine 16 performs electrostatic flocking on the surface of the mobile phone accessory shell. Flocking can be completed by the action of electrostatic field. The operation is convenient and quick, and it is easy to realize automated production. The vertical implantation density of the flock on the surface of the mobile phone accessory shell is >8000 strands / cm².
[0048] 5. After the flocking is completed on the surface of the mobile phone accessory case, it is sent to the baking machine 18 and baked in stages (60℃ / 5min→75℃ / 8min). The baking machine 18 shapes and dries the flocking on the surface of the mobile phone accessory case. Through the high temperature treatment of the baking machine 18, the base coating on the surface of the mobile phone accessory case can be removed, and the unwanted base coating evaporates. It also allows the spray adhesive and flocking layer to be fully cured. The flocking peel strength is >3N / cm, and the flocking surface flatness and color fastness are ≥4 levels.
[0049] 6. After the flocked fibers on the surface of the mobile phone accessory case are dried, remove clamp 15 and use a high-pressure air gun to blow away the excess fibers. During the use of the flocked mobile phone accessory case, no fibers will fall off. A negative pressure suction device can be added in the direction of the high-pressure air gun to facilitate the recycling and reuse of fibers.
[0050] Mobile phone accessory case quality inspection standards
[0051] Adhesion test: Cross-cut adhesion test results: 0-1 grade, acceptable.
[0052] Environmental testing: No shedding after 48 hours of high temperature and humidity at 85℃ / 85%RH.
[0053] Abrasion resistance: The nap remains intact after 5000 cycles of friction (load 500g).
[0054] 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 mobile phone accessory case flocking apparatus, characterized by, include: Plasma surface treatment machine (1), the plasma surface treatment machine (1) is equipped with a gantry (4), and a plasma nozzle (3) is installed on the gantry (4); A ring-shaped sprayer (5) is equipped with several rotating clamps. An adjustment bracket group is installed in the middle of the ring-shaped sprayer (5), and a spray head (25) is installed on the adjustment bracket group. A glue spraying machine (11) is equipped with a glue spraying head (13) via a cylinder (12), and a clamp (15) is placed below the glue spraying head (13). Flocking machine (16), wherein the flocking machine (16) electrostatically flocks the surface of the mobile phone accessory shell after spraying glue; Baking machine (18) is used to shape and dry the fuzz on the surface of mobile phone accessory casing.
2. A mobile phone accessory shell flocking apparatus as claimed in claim 1, wherein: The plasma surface treatment machine (1), glue sprayer (11), flocking machine (16), and baking machine (18) are all equipped with conveyors (2).
3. A mobile phone accessory shell flocking apparatus as claimed in claim 1, wherein: The rotating clamp includes a support rod (10) with a support ring (9) and a placement plate (7) is sleeved on the support rod (10).
4. A mobile phone accessory shell flocking apparatus as claimed in claim 3, wherein: The placement plate (7) is provided with a limiting seat (8) corresponding to the mobile phone accessory case.
5. A mobile phone accessory shell flocking apparatus as claimed in claim 1, wherein: The adjustment bracket assembly includes a column (24), the column (24) is connected to a crossbar (23) via a cross clamp (26), and the spray head (25) is connected to the crossbar (23) via a single clamp (27).
6. The flocking equipment for mobile phone accessory cases according to claim 1, characterized in that: A hot air blower (19) is installed on the upper surface of the baking machine (18), and an air inlet box (20) is installed at the air inlet of the hot air blower (19), and a filter plate (21) is inserted into the air inlet box (20).