Environmentally friendly mobile phone screen protective film scanning equipment and production process thereof

Abstract

The present invention provides an environmentally friendly mobile phone screen protective film sweeping device and a production process thereof. The environmentally friendly mobile phone screen protective film sweeping device comprises: a frame, a grinding disc, a grinding cylinder, a storage rack and a lifting slide. The storage rack comprises a protective shell and a double-sided suction cup. A spherical receiving hole is provided on the protective shell, and a hollow rotating shaft is provided in the spherical receiving hole; the double-sided suction cup is provided with a motor and two loading discs, and an output shaft is provided at each end of the motor, and the output shaft is used to drive the loading disc to rotate. The loading disc is used to place the protective film to be swept, and because the double-sided suction cup can be flipped around the hollow rotating shaft, the two loading discs can alternately face the grinding disc. When the grinding disc is grinding the protective film on the loading disc, the loading or unloading operation can be performed on the loading disc facing away from the grinding disc. The loading and unloading process is carried out simultaneously with the grinding, which can effectively improve the grinding efficiency; during the grinding and loading and unloading process, the storage rack is always located in the grinding cylinder to prevent the polishing liquid in the grinding cylinder from splashing to the outside of the equipment, so as to keep the workshop environment clean.

Description

Technical Field

[0001] The invention relates to the field of mobile phone screen production, and in particular to an environmentally friendly mobile phone screen protective film scanning device and a production process thereof. Background Art

[0002] Tempered film refers to tempered glass protective film, which is often applied to mobile phone screens as a protective film to protect the screen from damage and scratches. When applying tempered film to mobile phone screens, in order to ensure its smoothness, the tempered film needs to be polished.

[0003] For example, the Chinese utility model patent with application number 202020317250.9 discloses a polishing machine for tempered films of mobile phones. When polishing the tempered film, the material is placed on the upper grinding disc, and the flip rod flips the upper grinding disc and the lower grinding disc relative to each other so that the tempered film contacts the lower grinding disc for polishing. When taking the material, the flip rod flips in the opposite direction so that the bottom of the upper grinding disc faces upward, allowing the operator to take away the tempered film. The process of taking and placing the tempered film requires waiting for the flip rod to flip the upper grinding disc, and it is necessary to wait for the operator to pick up or place the tempered film. The long standby time affects the polishing efficiency of the tempered film. On the other hand, the process of the flip rod driving the upper grinding disc to flip will bring out the polishing agent in the grinding disc, splashing it near the equipment and polluting the workshop environment.

[0004] Based on the above problems, it is necessary to optimize the existing scanning machine. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an environmentally friendly mobile phone screen protective film polishing device to improve the polishing efficiency of the protective film and avoid the polishing agent from polluting the workshop environment.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] An environmentally friendly mobile phone screen protective film scanning device, comprising: a frame, a grinding disc, a grinding cylinder, a storage rack and a lifting slide;

[0008] The grinding cylinder and the lifting slide are both arranged on the frame, the grinding disc is located in the grinding cylinder, and the lifting slide is used to drive the storage rack to approach or move away from the grinding disc;

[0009] The storage rack includes a protective shell and a double-sided suction cup, the protective shell is provided with a spherical receiving hole, a hollow rotating shaft is provided in the spherical receiving hole, the double-sided suction cup is located in the spherical receiving hole, the double-sided suction cup is rotatably connected to the hollow rotating shaft, and the hollow rotating shaft is communicated with the inner cavity of the double-sided suction cup;

[0010] The double-sided suction cup is provided with a motor and two loading plates. The double-sided suction cup flips around the hollow rotating shaft so that one of the loading plates faces the grinding disc. An output shaft is respectively provided at both ends of the motor, and the output shaft is used to drive the loading plates to rotate.

[0011] In one embodiment, a clutch and a spring are provided between the loading plate and the output shaft, the clutch is provided with a sliding rod, a flange and a limit key, a stepped hole is provided on the loading plate, the sliding rod extends outward through the stepped hole, the limit key is provided on the sliding rod, the flange is provided with end face teeth, the output shaft is provided with external teeth matching the end face teeth, and the two ends of the spring are respectively abutted against the flange and the output shaft.

[0012] In one of the embodiments, a guide rod is provided on a side of the clutch member close to the output shaft, and the guide rod passes through the output shaft.

[0013] In one of the embodiments, a portion of the sliding rod outside the stepped hole is provided with a spherical contact portion.

[0014] In one of the embodiments, a groove is provided on the output shaft at a position in contact with the spring.

[0015] In one of the embodiments, a corrugated hose is provided on the side of the hollow rotating shaft away from the double-sided suction cup, and an avoidance groove matching the corrugated hose is provided on the grinding cylinder.

[0016] In one of the embodiments, a storage bucket, a guide member and a recovery box are provided on the frame, the guide member connects the storage bucket and the grinding disc, and the grinding cylinder is connected to the recovery box.

[0017] In one embodiment, a plurality of the spherical receiving holes are provided, and a double-sided suction cup is provided in each of the spherical receiving holes.

[0018] In one of the embodiments, a limiting swing rod is respectively provided on both sides of the spherical receiving hole, and the limiting swing rod is rotatably connected to the protective shell.

[0019] A production process for a mobile phone screen protective film comprises the following steps:

[0020] Step 1: Cutting;

[0021] Step 2: Spray oil;

[0022] Step 3: Sharding;

[0023] Step 4: CNC forming;

[0024] Step 5: Sweep; Use the above-mentioned environmentally friendly mobile phone screen protective film sweeping equipment to sweep the semi-finished product;

[0025] Step 6: First cleaning;

[0026] Step 7: Tempering treatment;

[0027] Step 8: Second cleaning;

[0028] Step 9: Inspection;

[0029] Step 10: Packing and shipment.

[0030] The above-mentioned environmentally friendly mobile phone screen protective film scanning device has the following advantages:

[0031] 1. The loading plate is used to place the protective film to be swept, and because the double-sided suction cup can be turned around the hollow shaft, the two loading plates can face the grinding disc alternately. When the grinding disc is grinding the protective film on the loading plate, the loading or unloading operation can be performed on the loading plate facing away from the grinding disc. The loading and unloading process is carried out simultaneously with grinding, which can effectively improve the grinding efficiency;

[0032] 2. During the grinding and loading and unloading process, the rack is always located in the grinding cylinder to prevent the polishing liquid in the grinding cylinder from splashing to the outside of the equipment, thus keeping the workshop environment clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 This is a flow chart of the steps in the production process of mobile phone screen protective film;

[0035] Figure 2 This is a schematic diagram of the structure of an environmentally friendly mobile phone screen protective film scanning device;

[0036] Figure 3 It is a schematic diagram of the state where the storage rack and the grinding disc are separated;

[0037] Figure 4 It is a schematic diagram of the state where the storage rack is in contact with the grinding disc;

[0038] Figure 5 It is a schematic diagram of the coordination between the limit swing rod and the loading tray;

[0039] Figure 6 It is a schematic diagram of the state of the double-sided suction cup flipping;

[0040] Figure 7 It is a schematic diagram of the structure of the clutch;

[0041] Figure 8 It is a schematic diagram of the cooperation between the clutch and the output shaft;

[0042] Fig. 9 This is a schematic diagram of the internal state of the rack during the loading and unloading process;

[0043] Fig.10 This is a schematic diagram of the internal state of the rack when the protective film is being polished. DETAILED DESCRIPTION

[0044] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention 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 the present invention more thoroughly understood.

[0045] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0047] See also Figure 1 The present invention provides a production process for a mobile phone screen protective film, comprising the following steps:

[0048] Step 1: Cutting: Use a punching machine to punch out the raw material to form several protective film prototypes on the raw material.

[0049] Step 2: Oil spraying: spraying oil on the raw material to form a protective layer on the outer wall of the raw material;

[0050] Step 3: Slicing; separating the protective film prototype from the edge material;

[0051] Step 4: CNC forming: The protective film prototype is finely processed by a CNC machine tool, such as processing avoidance holes and trimming the outer contour, and a semi-finished product is obtained after processing;

[0052] Step 5: Polishing: Transfer the semi-finished product to the environmentally friendly mobile phone screen protective film polishing equipment for polishing;

[0053] Step 6: First cleaning: remove the remaining debris and polishing agent on the semi-finished product;

[0054] Step 7: Tempering treatment: Place the semi-finished product in an oven and bake it, then cool it down quickly to temper the semi-finished product, thus obtaining a mobile phone screen protective film;

[0055] Step 8: Second cleaning: Clean the mobile phone screen protector for the second time;

[0056] Step 9: Inspection: Check whether the obtained mobile phone screen protective film is intact and whether there are scratches on the surface;

[0057] Step 10: Packing and shipment; mobile phone screen protective films that pass the inspection are packaged and shipped.

[0058] See also Figure 2 and Figure 3 In the production process of the above-mentioned mobile phone screen protective film, in order to improve the polishing efficiency of the semi-finished product, the present invention also provides an environmentally friendly mobile phone screen protective film polishing device 10, which includes: a frame 100, a grinding disc 200, a grinding cylinder 300, a storage rack 400 and a lifting slide 500.

[0059] The grinding cylinder 300 and the lifting slide 500 are both arranged on the frame 100, the grinding disc 200 is located in the grinding cylinder 300, the storage rack 400 is connected to the lifting slide 500, and the lifting slide 500 can drive the storage rack 400 to rise or fall so that the storage rack 400 is close to or away from the grinding disc 200.

[0060] See also Figure 4 and Figure 5 The storage rack 400 includes a protective shell 410 and a double-sided suction cup 420. The protective shell 410 is provided with a spherical receiving hole 411, and a hollow shaft 412 is provided in the spherical receiving hole 411. The double-sided suction cup 420 is located in the spherical receiving hole 411. The double-sided suction cup 420 is rotatably connected to the hollow shaft 412, and the hollow shaft 412 is connected to the inner cavity of the double-sided suction cup 420; preferably, a plurality of spherical receiving holes 411 are provided, and each spherical receiving hole 411 is provided with a double-sided suction cup 420 (such as Figure 2 as shown).

[0061] See also Figure 3 and Figure 4 The double-sided suction cup 420 is provided with a motor 421 and two loading plates 422. The double-sided suction cup 420 flips around the hollow rotating shaft 412 so that one of the loading plates 422 faces the grinding disc 200. An output shaft 430 is respectively provided at both ends of the motor 421, and the output shaft 430 is used to drive the loading plate 422 to rotate.

[0062] The working principle of the environmentally friendly mobile phone screen protective film scanning device 10 is as follows:

[0063] The semi-finished product protective film is laid on the loading tray 422. The hollow rotating shaft 412 is connected to an external air pump, and after the air pump is started, the air in the double-sided suction cup 420 can be extracted, thereby forming a negative pressure at the two loading trays 422 to absorb the semi-finished product protective film;

[0064] The double-sided suction cup 420 is rotatably connected to the hollow shaft 412, so that the double-sided suction cup 420 can be turned over in the spherical receiving hole 411 (such as Figure 6 As shown), the double-sided suction cup 420 is moved to make the loading plate 422 with the semi-finished product protective film facing the grinding disc 200, and the lifting slide 500 drives the rack 400 to descend, as shown in FIG. Figure 4 As shown, until the semi-finished product protective film contacts the grinding disc 200, the grinding disc 200 rotates, and the motor 421 drives the material loading disc 422 to rotate, and the two cooperate to grind and polish the semi-finished product protective film;

[0065] At the same time, the material loading tray 422 facing away from the grinding disc 200 is in a standby state, and a semi-finished product protective film can be laid on it. In this way, after the previous batch of protective films has completed the polishing process, the lifting slide 500 drives the rack 400 to rise (such as Figure 3 As shown in the figure, the double-sided suction cup 420 is flipped over to allow the next batch of semi-finished protective films to face the grinding disc 200. After the protective films that have been scanned are taken away, new semi-finished protective films are laid again. After the rack 400 is lowered again, the next round of scanning operation can be carried out, and this process is repeated. Both sides of the double-sided suction cup 420 can carry semi-finished protective films, which can greatly reduce the working hours occupied by the protective film scanning process and effectively improve the production efficiency of the protective film.

[0066] It should be noted that the process of grinding the protective film requires injecting polishing agent into the grinding disc 200. The polishing agent not only assists in grinding the protective film, but also plays a role in cooling and lubrication. During the above-mentioned grinding process, the storage rack 400 is always located in the grinding cylinder 300, and the polishing agent can be confined to the space enclosed by the protective shell 410 and the inner wall of the grinding cylinder 300, which effectively prevents the polishing agent from splashing to the outside of the equipment during loading and unloading and grinding, thereby keeping the workshop environment clean.

[0067] It can be known from the above-mentioned grinding process that when one of the loading plates 422 in the double-sided suction cup 420 faces the grinding disc 200 for grinding operation, the other loading plate 422 faces away from the grinding disc 200, and loading and unloading operations can be performed thereon, and during the grinding process, the loading plate 422 facing the grinding disc 200 is driven by the motor 421 to rotate, thereby improving the grinding efficiency, while the loading plate 422 facing away from the grinding disc 200 needs to remain stationary to facilitate picking up or prevent the protective film, that is, the two loading plates 422 are in different states of motion. However, the internal space of the double-sided suction cup 420 is limited, which is only enough to accommodate a single motor 421. The timing of loading and unloading is when the lifting slide 500 lifts the storage rack 400, and after the motor 421 stops running, the process of the motor 421 stopping still needs to wait. Therefore, the following improvements are made to the double-sided suction cup 420:

[0068] See also Figure 7 and Figure 8 A clutch 440 and a spring 450 are provided between the material loading plate 422 and the output shaft 430. The clutch 440 is provided with a sliding rod 441, a flange 442 and a limit key 443. A stepped hole 4221 is provided on the material loading plate 422. The sliding rod 441 extends outward through the stepped hole 4221. The end of the sliding rod 441 is exposed outside the material loading plate 422. Preferably, a spherical contact portion 445 is provided on the portion of the sliding rod 441 outside the stepped hole 4221. The friction between the clutch 440 and the grinding disc 200 can be reduced.

[0069] The limit key 443 is arranged on the sliding rod 441, the flange 442 is provided with an end face tooth 4421, the output shaft 430 is provided with an external tooth 431 matching the end face tooth 4421, and the two ends of the spring 450 are respectively against the flange 442 and the output shaft 430. Preferably, a groove 432 is provided on the output shaft 430 at a position in contact with the spring 450.

[0070] Preferably, a guide rod 444 is provided on one side of the clutch 440 close to the output shaft 430 , and the guide rod 444 passes through the output shaft 430 .

[0071] See also Figures 7 to 10 The clutch 440 cooperates with the spring 450 to allow the loading tray 422 to automatically switch the motion state, as follows:

[0072] When performing the sweeping operation, the lifting slide 500 drives the rack 400 to descend, the clutch 440 on the material loading plate 422 facing the grinding plate 200 contacts the grinding plate 200, and the sliding rod 441 is retracted into the stepped hole 4221, and the end face teeth 4421 on the flange 442 are meshed with the external teeth 431 on the output shaft 430. When the output shaft 430 rotates, the clutch 440 can be driven to rotate, thereby driving the material loading plate 422 to rotate together;

[0073] After the sweeping operation is completed and the loading plate 422 is turned over, the clutch 440 is separated from the grinding disc 200, and the clutch 440 pops up again under the elastic force provided by the spring 450, and the end face teeth 4421 and the external teeth 431 are no longer engaged. At this time, the clutch 440 is separated from the output shaft 430, and the loading plate 422 loses power and stops rotating quickly.

[0074] It should be emphasized that only when the clutch 440 contacts the grinding disc 200, the end face teeth 4421 will mesh with the outer teeth 431, allowing the output shaft 430 to drive the material loading plate 422 to rotate. This allows the two material loading plates 422 to start and stop in an orderly manner without interfering with each other. The motor 421 does not need to be stopped during the loading and unloading process, the standby time is short, the motor 421 does not need to be frequently started and shut down, and the failure rate is reduced.

[0075] Furthermore, the clutch 440 can ensure that the loading plate 422 on the side facing away from the grinding disc 200 is stationary, which is convenient for picking up and placing the protective film. The loading plate 422 at this position will not rotate accidentally due to operator misoperation or failure of the motor 421, thereby avoiding safety accidents in the loading and unloading process. On the other hand, the loading plate 422 on the side facing the grinding disc 200 will not start to rotate until the lifting slide 500 has descended into place, thereby avoiding the polishing agent remaining on the loading plate 422 from being thrown out of the grinding cylinder 300.

[0076] In one embodiment, a corrugated hose (not shown) is provided on the side of the hollow rotating shaft 412 away from the double-sided suction cup 420, and an avoidance groove 310 matching the corrugated hose is provided on the grinding cylinder 300.

[0077] See also Figure 2 In one embodiment, a storage barrel 110, a guide member 120 and a recovery box 130 are provided on the frame 100. The guide member 120 connects the storage barrel 110 and the grinding disc 200, and the grinding cylinder 300 is connected to the recovery box 130. The storage barrel 110 is used to store the polishing agent, which flows into the grinding disc 200 through the guide member 120, and falls into the storage barrel 110 and flows back into the recovery box 130 during the grinding process.

[0078] See also Figure 5 and Figure 6 In one embodiment, a limit swing rod 413 is provided on each side of the spherical receiving hole 411, and the limit swing rod 413 is rotatably connected to the protective shell 410. The limit swing rod 413 can be moved to fit the material loading plate 422 on the side facing away from the grinding disc 200 (such as Figure 5 As shown in FIG. 1 ), the two limit swing rods 413 cooperate to limit the loading tray 422 so that the double-sided suction cup 420 cannot be turned over; when the side needs to be changed, first move the two limit swing rods 413 to separate them from the loading tray 422 (as shown in FIG. 1 ). Figure 6 as shown).

[0079] The above-mentioned environmentally friendly mobile phone screen protective film scanning device 10 has the following advantages:

[0080] 1. The loading plate 422 is used to place the protective film to be swept, and because the double-sided suction cup 420 can be turned around the hollow rotating shaft 412, the two loading plates 422 can alternately face the grinding disc 200. When the grinding disc 200 is grinding the protective film on the loading plate 422, the loading or unloading operation can be performed on the loading plate 422 facing away from the grinding disc 200. The loading and unloading process is carried out simultaneously with grinding, which can effectively improve the grinding efficiency.

[0081] 2. During the grinding and loading and unloading process, the rack 400 is always located in the grinding cylinder 300 to prevent the polishing liquid in the grinding cylinder 300 from splashing to the outside of the equipment, thereby keeping the workshop environment clean and having good environmental protection performance;

[0082] 3. The material loading plate 422 and the output shaft 430 are connected by a clutch 440. Only when the clutch 440 is pressed into the stepped hole 4221 by the grinding disc 200, the output shaft 430 can drive the material loading plate 422 to rotate, so that the two material loading plates 422 can start and stop in an orderly manner without interfering with each other. The material loading plate 422 at this position will not rotate accidentally due to operator misoperation or motor 421 failure, avoiding safety accidents during the loading and unloading process, ensuring that the material loading plate 422 starts to rotate only after it moves into place, and preventing the polishing agent remaining on the material loading plate 422 from being thrown out of the grinding cylinder 300.

[0083] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An environmentally friendly mobile phone screen protective film scanning device, characterized in that: include: Frame, grinding disc, grinding cylinder, storage rack and lifting slide; The grinding cylinder and the lifting slide are both arranged on the frame, the grinding disc is located in the grinding cylinder, and the lifting slide is used to drive the storage rack to approach or move away from the grinding disc; The storage rack includes a protective shell and a double-sided suction cup, the protective shell is provided with a spherical receiving hole, a hollow rotating shaft is provided in the spherical receiving hole, the double-sided suction cup is located in the spherical receiving hole, the double-sided suction cup is rotatably connected to the hollow rotating shaft, and the hollow rotating shaft is communicated with the inner cavity of the double-sided suction cup; The double-sided suction cup is provided with a motor and two material-carrying plates. The double-sided suction cup is turned around the hollow rotating shaft so that one of the material-carrying plates faces the grinding disc. An output shaft is respectively provided at both ends of the motor, and the output shaft is used to drive the material-carrying plates to rotate. A clutch and a spring are provided between the loading plate and the output shaft, the clutch is provided with a sliding rod, a flange and a limit key, a stepped hole is provided on the loading plate, the sliding rod extends outward through the stepped hole, the limit key is provided on the sliding rod, the flange is provided with end face teeth, the output shaft is provided with external teeth matching the end face teeth, and the two ends of the spring are respectively abutted against the flange and the output shaft; a guide rod is provided on the side of the clutch close to the output shaft, and the guide rod passes through the output shaft; a spherical contact portion is provided on the portion of the sliding rod outside the stepped hole; a groove is provided on the output shaft at a position in contact with the spring.

2. The environmentally friendly mobile phone screen protective film scanning device according to claim 1, characterized in that: A corrugated hose is provided on the side of the hollow rotating shaft away from the double-sided suction cup, and an avoidance groove matching the corrugated hose is provided on the grinding cylinder.

3. The environmentally friendly mobile phone screen protective film scanning device according to claim 1, characterized in that: A storage bucket, a flow guide and a recovery box are arranged on the frame. The flow guide is connected with the storage bucket and the grinding disc, and the grinding cylinder is connected with the recovery box.

4. The environmentally friendly mobile phone screen protective film scanning device according to claim 1, characterized in that: There are a plurality of spherical receiving holes, and each of the spherical receiving holes is provided with a double-sided suction cup.

5. The environmentally friendly mobile phone screen protective film scanning device according to claim 1, characterized in that: A limiting swing rod is respectively provided on both sides of the spherical receiving hole, and the limiting swing rod is rotatably connected to the protective shell.

6. A process for producing a mobile phone screen protective film, characterized in that: The steps include: Step 1: Cutting; Step 2: Spray oil; Step 3: Sharding; Step 4: CNC forming; Step 5: Sweeping: Sweeping the semi-finished product using the environmentally friendly mobile phone screen protective film sweeping device according to any one of claims 1 to 5; Step 6: First cleaning; Step 7: Tempering treatment; Step 8: Second cleaning; Step 9: Inspection; Step 10: Packing and shipment.

Images