Dry ice cleaning device suitable for mobile phone back cover

Abstract

The utility model discloses a dry ice cleaning equipment suitable for mobile phone back cover, including frame, fixed mounting has workstation in the frame, and the top one end fixed mounting of workstation has mobile phone back cover loading handling module, and the bottom one side of mobile phone back cover loading handling module is equipped with the mobile phone back cover loading conveying line of fixed mounting on the workstation, and one side of mobile phone back cover loading handling module is equipped with the mobile phone back cover normalizing subassembly of fixed mounting on the workstation, and the top of mobile phone back cover normalizing subassembly is equipped with linkage instrument loading handling module, and linkage instrument loading handling module fixed mounting is on the workstation, and the side away from mobile phone back cover loading handling module of linkage instrument loading handling module is equipped with nozzle movement module, and nozzle movement module fixed mounting is on the workstation, and the drive end fixed connection of nozzle movement module has dry ice injection nozzle subassembly, and the bottom of dry ice injection nozzle subassembly is equipped with linkage instrument product adsorption subassembly, and the both sides of linkage instrument product adsorption subassembly are equipped with dirty collection subassembly.

Description

Technical Field

[0001] This utility model relates to the field of precision cleaning equipment technology, specifically a dry ice cleaning device suitable for mobile phone back covers. Background Technology

[0002] With the widespread use of smartphones, the requirements for the appearance quality of mobile phone back covers are becoming increasingly stringent. During the production process, back covers often have residual glue, oil, fingerprints, dust, and other impurities, which can affect the quality of subsequent coating, spraying, or assembly.

[0003] Current cleaning methods often involve alcohol wiping or ultrasonic cleaning, but these methods have the following problems: 1. Incomplete cleaning: It is difficult to remove residues from small crevices; Low efficiency: Manual or liquid cleaning is cumbersome and time-consuming. 2. Secondary pollution: Cleaning fluid residue may cause watermarks or corrosion on the surface; Environmental pressure: Liquid cleaning requires waste liquid treatment, which is costly.

[0004] Therefore, there is an urgent need for a high-efficiency, pollution-free, and automated cleaning device to improve the cleaning quality and production efficiency of mobile phone back covers. To this end, we propose a dry ice cleaning device suitable for mobile phone back covers to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a dry ice cleaning device suitable for mobile phone back covers, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dry ice cleaning device suitable for mobile phone back covers, comprising a frame, a workbench fixedly installed inside the frame, a mobile phone back cover loading and conveying module fixedly installed at one top end of the workbench, a mobile phone back cover loading conveyor fixedly installed on one side of the bottom of the mobile phone back cover loading and conveying module, a mobile phone back cover alignment component fixedly installed on the workbench, a linkage loading and conveying module fixedly installed on one side of the mobile phone back cover loading and conveying module, and a linkage loading and conveying module fixedly installed on the workbench. On the platform, a nozzle motion module is provided on the side of the linkage instrument loading and transporting module away from the mobile phone back cover loading and transporting module. The nozzle motion module is fixedly installed on the worktable. A dry ice spray nozzle assembly is fixedly connected to the drive end of the nozzle motion module. A linkage instrument product adsorption assembly is provided at the bottom of the dry ice spray nozzle assembly. Dirt collection assemblies are provided on both sides of the linkage instrument product adsorption assembly. The dirt collection assemblies are fixedly connected to the nozzle motion module. A unloading and transporting module is provided on the side of the nozzle motion module away from the linkage instrument loading and transporting module. The unloading and transporting module is fixedly installed at the other end of the top of the worktable.

[0007] Preferably, a frame cover is fixedly installed on the periphery of the frame, an FFU is fixedly installed on the top of the frame cover, a buzzer is fixedly installed on one side of the top of the frame cover, three-color lights are fixedly installed on both sides of the top of the frame cover, a door is hinged to three sides of the frame cover, a touch screen is fixedly installed on two opposite doors, a dry ice storage chamber is fixedly installed on one side of the bottom of the frame, a dry ice preparation control panel is fixedly installed on one side of the dry ice storage chamber and mounted on the frame, a power switch is fixedly installed on the other side of the bottom of the frame, and shock-absorbing feet are fixedly installed at the four corners of the bottom of the frame, with foot cups fixedly connected to the bottom of the frame on one side of each shock-absorbing foot.

[0008] Preferably, the mobile phone back cover loading and handling module includes a linear motor, a cylinder, a mounting base, and a suction cup. The linear motor is fixedly mounted on one end of the top of the workbench via a bracket. The driving end of the linear motor is fixedly connected to the cylinder. The driving end of the cylinder is fixedly connected to the mounting base. The four bottom corners of the mounting base are respectively fixedly mounted with suction cups.

[0009] Preferably, the mobile phone back cover alignment component includes an mounting platform, alignment seats, and pneumatic grippers. The mounting platform is fixedly installed on the top of the workbench, and multiple evenly distributed alignment seats are fixedly installed on the top surface of the mounting platform. Pneumatic grippers are installed on the four sides of each alignment seat.

[0010] Preferably, the linkage loading and handling module includes a linear guide rail, a mounting plate, a lifting cylinder, a suction cup seat, a suction cup, and a linear motor. The linear guide rail and the linear motor are fixedly mounted on the top of the workbench in parallel by brackets. The drive ends of the linear guide rail and the linear motor are fixedly connected to both ends of the mounting plate. The lifting cylinder is fixedly mounted in the middle of the mounting plate. The drive rod end of the lifting cylinder slides through the rear end of the mounting plate and is fixedly connected to multiple suction cup seats. Suction cups are fixedly mounted at the four corners of each suction cup seat. Each suction cup is correspondingly located on the top of the alignment seat.

[0011] Preferably, the adsorption assembly of the linkage device includes a second linear guide rail, a support base, a base, an adsorption seat, and a third linear motor. Two second linear guide rails are provided and fixedly installed parallel to each other on the worktable. The sliding ends of the second linear guide rails are fixedly connected to the support bases. The support bases are connected to each other. Multiple adsorption seats are evenly distributed on the top of each base. The third linear motor is provided between the second linear guide rails. The third linear motor is fixedly installed on the worktable, and the drive end of the third linear motor is fixedly connected to the bottom of the base.

[0012] Preferably, the nozzle motion module includes a support frame, a linear motor four, a mounting plate two, a drive motor, a linear guide rail three, and a mounting bracket. The bottom end of the support frame is fixedly mounted on the worktable. A linear motor four is fixedly mounted on one side of the top of the support frame. The drive end of the linear motor four is fixedly connected to one end of the mounting plate two. A drive motor is fixedly mounted in the middle of the other end of the mounting plate two. The output shaft of the drive motor is fixedly connected to a lead screw, and the lead screw is connected to the middle of one side of the mounting bracket through a threaded structure. The sliders of the linear guide rail three are fixedly connected to both ends of one side of the mounting bracket. The linear guide rail three is fixedly mounted on the mounting plate two. Multiple evenly distributed dry ice spray nozzle assemblies are fixedly mounted on the bottom of the other side of the mounting bracket.

[0013] Preferably, the dry ice spray nozzle assembly includes multiple spray nozzles and multiple ion air knife drying nozzles. Each spray nozzle and each ion air knife drying nozzle is a group, and each group is fixedly installed on the mounting frame. The spray nozzle and the ion air knife drying nozzle in a single group are arranged in a front-to-back position.

[0014] Preferably, the dirt collection assembly includes a dirt and exhaust gas collection box, a dirt and exhaust gas collection sheet metal cover, a linkage actuator sheet metal baffle, and an exhaust fan mounting plate. The dirt and exhaust gas collection box is slidably disposed within the frame and is located at the bottom of the workbench. The top of the dirt and exhaust gas collection box is provided with a dirt and exhaust gas collection sheet metal cover, which is fixedly connected to a support frame. An exhaust fan mounting plate is fixedly connected to one outer wall of the dirt and exhaust gas collection sheet metal cover. Multiple exhaust fans are fixedly installed on the exhaust fan mounting plate, which is fixedly connected to the frame. A linkage actuator sheet metal baffle is provided on one side of the dirt and exhaust gas collection sheet metal cover, which is fixedly connected to a base.

[0015] Preferably, the material handling module includes a linear motor five, an adjusting cylinder, a suction cup seat two, and a suction cup three. The linear motor five is fixedly mounted on the workbench by a bracket. The drive end of the linear motor five is fixedly connected to two symmetrically arranged adjusting cylinders. The bottom of each adjusting cylinder is fixedly connected to a plurality of suction cup seats two, and suction cup threes are fixedly installed at the four corners of each suction cup seat two.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. Excellent cleaning effect: Dry ice particle spray can penetrate deep into crevices to thoroughly remove residual glue, oil, fingerprints, and dust; 2. No secondary pollution: Dry ice cleaning does not use liquids, and only CO2 gas is produced after sublimation; 3. Automated operation: The five-axis linkage instrument is equipped with nozzles to achieve a positioning accuracy of ±0.1mm and is compatible with 3D curved surface cleaning path planning; 4. High adaptability: The clamping device is replaceable and compatible with different models of mobile phone back covers; 5. Reasonable structure: Each module is installed independently, which facilitates maintenance and upgrades. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from another perspective; Figure 3 This is a schematic diagram of the internal structure of the frame cover of this utility model; Figure 4 This is a schematic diagram of the internal structure of the frame cover of this utility model from another perspective; Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic diagram of the position and structure of the nozzle motion module in this utility model; Figure 7 This is a schematic diagram of the nozzle motion module position from another perspective in this utility model; Figure 8 This is a schematic diagram of the dirt collection component in this utility model.

[0018] In the diagram: 1. Frame housing; 2. FFU; 3. Tri-color light; 4. Touch screen; 5. Foot cup; 6. Vibration-damping feet; 7. Buzzer; 8. Exhaust fan; 9. Power switch; 10. Dry ice preparation control panel; 11. Dry ice storage chamber; 12. Mobile phone back cover loading conveyor line; 13. Mobile phone back cover loading and handling module; 14. Linear motor 1; 15. Cylinder; 16. Mounting base; 17. Suction cup 1; 18. Mobile phone back cover alignment component; 19. Mounting platform; 10. Alignment seat; 11. Pneumatic gripper; 12. Linkage device loading and handling module; 13. Linear guide rail 1; 14. Mounting plate 1; 15. Lifting cylinder; 15. Suction cup base 1; 15. Suction cup 2; 15. Linear motor 2; 15. Linkage device product adsorption component; 16. Linear guide rail. 161. Support base 162. Base 163. Adsorption seat 164. Linear motor 165. Dry ice spray nozzle assembly 17. Spray nozzle 171. Ion air knife drying nozzle 172. Nozzle motion module 18. Support frame 181. Linear motor 182. Mounting plate 183. Drive motor 184. Linear guide rail 185. Mounting frame 186. Unloading and handling module 19. Linear motor 191. Adjusting cylinder 192. Suction cup seat 193. Suction cup 194. Workbench 20. Frame 21. Dirt collection assembly 22. Dirt and exhaust gas collection box 201. Dirt collection sheet metal cover 202. Linkage device mover sheet metal baffle 203. Exhaust fan mounting plate 204. Box door 23. Detailed Implementation

[0019] 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. Example

[0020] Reference Figure 1 , 2 This is the first embodiment of the present invention, which provides a dry ice cleaning device suitable for mobile phone back covers. It includes a frame 21, a workbench 20 fixedly installed inside the frame 21, a mobile phone back cover loading and conveying module 13 fixedly installed at one top end of the workbench 20, a mobile phone back cover loading and conveying line 12 fixedly installed on the workbench 20 at the bottom side of the mobile phone back cover loading and conveying module 13, which continuously conveys the mobile phone back covers to be cleaned into the device. A mobile phone back cover alignment component 14 fixedly installed on the workbench 20 is located on one side of the mobile phone back cover loading and conveying module 13, and a linkage loading and conveying module 15 is located on the top of the mobile phone back cover alignment component 14. The conveying module 15 is fixedly installed on the workbench 20. On the side of the linkage instrument loading and conveying module 15 away from the mobile phone back cover loading and conveying module 13, there is a nozzle motion module 18. The nozzle motion module 18 is fixedly installed on the workbench 20. The drive end of the nozzle motion module 18 is fixedly connected to the dry ice spray nozzle assembly 17. The bottom of the dry ice spray nozzle assembly 17 is provided with the linkage instrument product adsorption assembly 16. On both sides of the linkage instrument product adsorption assembly 16, there are dirt collection assemblies 22. The dirt collection assembly 22 is fixedly connected to the nozzle motion module 18. On the side of the nozzle motion module 18 away from the linkage instrument loading and conveying module 15, there is a discharge conveying module 19. The discharge conveying module 19 is fixedly installed on the other end of the top of the workbench 20. Example

[0021] Reference Figure 1-8This is the second embodiment of the present invention, which is based on the previous embodiment. Specifically, a frame cover 1 is fixedly installed on the periphery of the frame 21. An FFU 2 is fixedly installed on the top of the frame cover 1. A buzzer 7 is fixedly installed on one side of the top of the frame cover 1. Three-color lights 3 are fixedly installed on both sides of the top of the frame cover 1. A door 23 is hinged to three sides of the frame cover 1. A touch screen 4 is fixedly installed on two opposite doors 23. A dry ice storage chamber 11 is fixedly installed on one side of the bottom of the frame 21. A dry ice preparation control panel 10 is fixedly installed on one side of the dry ice storage chamber 11 and fixedly installed on the frame 21. A power switch 9 is fixedly installed on the other side of the bottom of the frame 21. Shock-absorbing feet 6 are fixedly installed at the four corners of the bottom of the frame 21. A foot cup 5 is fixedly connected to the bottom of the frame 21 on one side of each shock-absorbing foot 6.

[0022] The dry ice storage chamber 11 is used to store dry ice particles. The dry ice storage chamber 11 is equipped with an insulation layer to prevent the dry ice from sublimating prematurely. The dry ice preparation module inside adopts a two-stage crushing system to control the dry ice particles in the range of 0.15-0.25mm to reduce surface impact. The operation is controlled by the dry ice preparation control panel 10. The dry ice particles are transported to the dry ice spray nozzle assembly 17 by airflow through the connected pipeline.

[0023] Specifically, the mobile phone back cover loading and handling module 13 includes a linear motor 131, a cylinder 132, a mounting base 133, and a suction cup 134. The linear motor 131 is fixedly mounted on the top end of the workbench 20 via a bracket. The drive end of the linear motor 131 is fixedly connected to the cylinder 132. The drive end of the cylinder 132 is fixedly connected to the mounting base 133. The suction cups 134 are fixedly mounted on the four bottom corners of the mounting base 133.

[0024] The mobile phone back cover loading and handling module 13 is located at the end of the mobile phone back cover loading conveyor line 12, and is used to grab the mobile phone back cover that has been delivered to the designated position and move it to the mobile phone back cover alignment component 14.

[0025] Specifically, the mobile phone back cover alignment component 14 includes a mounting platform 141, alignment seats 142, and pneumatic grippers 143. The mounting platform 141 is fixedly mounted on the top of the workbench 20. Multiple evenly distributed alignment seats 142 are fixedly mounted on the top surface of the mounting platform 141, and pneumatic grippers 143 are respectively installed on the four sides of the alignment seats 142. The mobile phone back cover alignment component 14 is used to correct the position of the mobile phone back cover, ensuring the positioning accuracy of the mobile phone back cover in subsequent cleaning processes.

[0026] Specifically, the linkage instrument loading and handling module 15 includes a linear guide rail 151, a mounting plate 152, a lifting cylinder 153, a suction cup seat 154, a suction cup 155, and a linear motor 156. The linear guide rail 151 and the linear motor 156 are respectively fixedly mounted on the top of the workbench 20 in parallel by brackets. The drive ends of the linear guide rail 151 and the linear motor 156 are respectively fixedly connected to both ends of the mounting plate 152. The lifting cylinder 153 is fixedly mounted in the middle of the mounting plate 152. The drive rod end of the lifting cylinder 153 slides through the mounting plate 152 and is fixedly connected to multiple suction cup seats 154 at the rear end. Suction cups 155 are fixedly mounted at the four corners of the suction cup seats 154, and each suction cup 155 is correspondingly located on the top of the alignment seat 142. The linkage instrument loading and handling module 15 is used to transport the aligned mobile phone back cover to the linkage instrument product adsorption assembly 16.

[0027] Specifically, the adsorption assembly 16 of the linkage device includes a second linear guide rail 161, a support base 162, a base 163, adsorption seats 164, and a third linear motor 165. Two second linear guide rails 161 are provided and fixedly mounted parallel to each other on the worktable 20. The sliding ends of the second linear guide rails 161 are fixedly connected to the support bases 162. The base 163 is connected between the support bases 162. Multiple evenly distributed adsorption seats 164 are mounted on the top of the base 163. The third linear motor 165 is located between the second linear guide rails 161 and is fixedly mounted on the worktable 20. The drive end of the third linear motor 165 is fixedly connected to the bottom of the base 163. The adsorption assembly 16 of the linkage device, in conjunction with a vacuum generator, fixes the back cover of a mobile phone through vacuum adsorption.

[0028] Specifically, the nozzle motion module 18 includes a support frame 181, a linear motor 182, a mounting plate 183, a drive motor 184, a linear guide rail 185, and a mounting bracket 186. The bottom end of the support frame 181 is fixedly mounted on the worktable 20. The linear motor 182 is fixedly mounted on one side of the top of the support frame 181. The drive end of the linear motor 182 is fixedly connected to one end of the mounting plate 183. The drive motor 184 is fixedly mounted in the middle of the other end of the mounting plate 183. The output shaft of the drive motor 184 is fixedly connected to a lead screw, and the lead screw is connected to the middle of one side of the mounting bracket 186 through a threaded structure. The sliders of the linear guide rail 185 are fixedly connected to both ends of one side of the mounting bracket 186. The linear guide rail 185 is fixedly mounted on the mounting plate 183. Multiple evenly distributed dry ice spray nozzle assemblies 17 are fixedly mounted on the bottom of the other side of the mounting bracket 186. The nozzle motion module 18 drives the dry ice spray nozzle assembly 17 to move in the XZ direction, and in conjunction with the five-axis linkage device to drive the linkage device product adsorption assembly 16, the spray nozzle can achieve full coverage movement along the three-dimensional curved surface of the phone back cover. Through the coordinated cooperation of the five-axis linkage and the nozzle movement, it is possible to achieve thorough cleaning of the complex curved surface and edge parts of the phone back cover.

[0029] Specifically, the dry ice spray nozzle assembly 17 includes multiple spray nozzles 171 and multiple ion air knife drying nozzles 172. Each spray nozzle 171 and each ion air knife drying nozzle 172 are grouped together and each group is fixedly mounted on the mounting bracket 186. The spray nozzles 171 and ion air knife drying nozzles 172 in a front-to-back position are arranged in a single group. The dry ice spray nozzle assembly 17 is used to spray dry ice particles onto the surface of the phone's back cover under the action of compressed airflow, and finally the ion air knife drying nozzles 172 dry the moisture remaining on the back cover.

[0030] Specifically, the dirt collection assembly 22 includes a dirt and exhaust gas collection box 201, a dirt and exhaust gas collection sheet metal cover 202, a linkage actuator sheet metal baffle 203, and an exhaust fan mounting plate 204. The dirt and exhaust gas collection box 201 is slidably disposed in the frame 21 and is located at the bottom of the workbench 20. The dirt and exhaust gas collection box 201 is provided with a dirt and exhaust gas collection sheet metal cover 202 on its top. The dirt and exhaust gas collection sheet metal cover 202 is fixedly connected to a support frame 181. An exhaust fan mounting plate 204 is fixedly connected to one outer wall of the dirt and exhaust gas collection sheet metal cover 202. Multiple exhaust fans 8 are fixedly installed on the exhaust fan mounting plate 204. The exhaust fan mounting plate 204 is fixedly connected to the frame 21. A linkage actuator sheet metal baffle 203 is provided on one side of the dirt and exhaust gas collection sheet metal cover 202. The linkage actuator sheet metal baffle 203 is fixedly connected to a base 163. The dirt collection assembly 22 is used to collect particulate impurities and carbon dioxide gas generated by sublimation after dry ice impact during the cleaning process, and the exhaust fan 8 is used to discharge the waste.

[0031] Specifically, the unloading and handling module 19 includes a linear motor 191, an adjusting cylinder 192, a suction cup holder 193, and a suction cup 194. The linear motor 191 is fixedly mounted on the worktable 20 via a bracket. The drive end of the linear motor 191 is fixedly connected to two symmetrically arranged adjusting cylinders 192. Multiple suction cup holders 193 are fixedly connected to the bottom of each adjusting cylinder 192, and suction cups 194 are fixedly mounted at the four corners of each suction cup holder 193. The unloading and handling module 19 is located at the outlet of the spray area and is used to remove the phone back cover from the product adsorption component 16 of the linkage device after cleaning and transport it to the unloading station to complete the entire cleaning cycle.

[0032] The working principle and process are as follows: During operation, the phone back cover is sent to the designated position via the phone back cover feeding conveyor line 12. The phone back cover feeding and handling module 13 transports it to the phone back cover alignment component 14. After alignment, the phone back cover is transferred by the linkage feeding and handling module 15 to the linkage product adsorption component 16 and fixed by vacuum adsorption. Subsequently, the five-axis linkage drives the product clamp holding the phone back cover to move, while the nozzle motion module 18 drives the dry ice spray nozzle assembly 17 to move synchronously, so that the nozzle moves along the three axes of the phone back cover. The curved surface is fully covered by spray cleaning; dry ice particles quickly remove oil, dust and glue residue from the surface of the phone back cover through low temperature and instantaneous sublimation micro-explosion during the spraying process; impurities and CO2 gas generated during the cleaning process enter the dirt collection component 22 through the sealed space, where solid impurity particles are collected by the dirt collection sheet metal cover 202, and the gas is discharged by the exhaust fan 8, ensuring a clean operating environment. After cleaning, the unloading and handling module 19 removes the phone back cover from the linkage product adsorption component 16 and transfers it to the unloading position.

[0033] It should be noted that the above electrical components are all existing technology products. They are selected, installed and debugged by those skilled in the art according to the needs of use to ensure that all electrical appliances can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. The applicant does not impose specific restrictions here, so it will not be described in detail.

[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 dry ice cleaning device for mobile phone back covers, comprising a frame (21), wherein a worktable (20) is fixedly installed inside the frame (21), characterized in that: A mobile phone back cover loading and conveying module (13) is fixedly installed at one end of the top of the workbench (20). A mobile phone back cover loading and conveying module (13) is provided with a mobile phone back cover loading conveyor line (12) fixedly installed on the workbench (20) on one side of the bottom of the mobile phone back cover loading and conveying module (13). A mobile phone back cover alignment component (14) is fixedly installed on the workbench (20) on one side of the mobile phone back cover loading and conveying module (13). A linkage instrument loading and conveying module (15) is provided on the top of the mobile phone back cover alignment component (14). The linkage instrument loading and conveying module (15) is fixedly installed on the workbench (20). A nozzle is provided on the side of the linkage instrument loading and conveying module (15) away from the mobile phone back cover loading and conveying module (13). The nozzle motion module (18) is fixedly installed on the workbench (20). The drive end of the nozzle motion module (18) is fixedly connected to the dry ice spray nozzle assembly (17). The bottom of the dry ice spray nozzle assembly (17) is provided with a linkage instrument product adsorption assembly (16). The two sides of the linkage instrument product adsorption assembly (16) are provided with dirt collection assemblies (22). The dirt collection assembly (22) is fixedly connected to the nozzle motion module (18). The side of the nozzle motion module (18) away from the linkage instrument loading and transporting module (15) is provided with a unloading and transporting module (19). The unloading and transporting module (19) is fixedly installed on the other end of the top of the workbench (20).

2. The dry ice cleaning device for mobile phone back covers according to claim 1, characterized in that: A frame cover (1) is fixedly installed on the periphery of the frame (21). An FFU (2) is fixedly installed on the top of the frame cover (1). A buzzer (7) is fixedly installed on one side of the top of the frame cover (1). Three-color lights (3) are fixedly installed on both sides of the top of the frame cover (1). A door (23) is hinged on three sides of the frame cover (1). A touch screen (4) is fixedly installed on the two opposite doors (23). A dry ice storage chamber (11) is fixedly installed on one side of the bottom of the frame (21). A dry ice preparation control panel (10) is fixedly installed on one side of the dry ice storage chamber (11) on the frame (21). A power switch (9) is fixedly installed on the other side of the bottom of the frame (21). Shock-absorbing feet (6) are fixedly installed at the four corners of the bottom of the frame (21). A foot cup (5) is fixedly connected to the bottom of the frame (21) on one side of each shock-absorbing foot (6).

3. The dry ice cleaning device for mobile phone back covers according to claim 1, characterized in that: The mobile phone back cover loading and handling module (13) includes a linear motor (131), a cylinder (132), a mounting base (133), and a suction cup (134). The linear motor (131) is fixedly installed on the top end of the workbench (20) by a bracket. The driving end of the linear motor (131) is fixedly connected to the cylinder (132). The driving end of the cylinder (132) is fixedly connected to the mounting base (133). The four bottom corners of the mounting base (133) are respectively fixedly installed with suction cups (134).

4. The dry ice cleaning device for mobile phone back covers according to claim 1, characterized in that: The mobile phone back cover alignment component (14) includes an mounting platform (141), alignment seats (142), and pneumatic grippers (143). The mounting platform (141) is fixedly installed on the top of the workbench (20). Multiple evenly distributed alignment seats (142) are fixedly installed on the top surface of the mounting platform (141). Pneumatic grippers (143) are installed on the four sides of the alignment seats (142).

5. A dry ice cleaning device for mobile phone back covers according to claim 4, characterized in that: The linkage loading and handling module (15) includes a linear guide rail (151), a mounting plate (152), a lifting cylinder (153), a suction cup seat (154), a suction cup (155), and a linear motor (156). The linear guide rail (151) and the linear motor (156) are respectively fixedly mounted on the top of the workbench (20) in parallel by a bracket. The driving ends of the linear guide rail (151) and the linear motor (156) are respectively fixedly connected to the two ends of the mounting plate (152). The lifting cylinder (153) is fixedly mounted in the middle of the mounting plate (152). The driving rod end of the lifting cylinder (153) slides through the rear end of the mounting plate (152) and is fixedly connected to multiple suction cup seats (154). The four corners of the suction cup seat (154) are respectively fixedly mounted with suction cups (155). The suction cups (155) are respectively located on the top of the alignment seat (142).

6. A dry ice cleaning device for mobile phone back covers according to claim 1, characterized in that: The adsorption assembly (16) of the linkage instrument includes a second linear guide rail (161), a support base (162), a base (163), an adsorption seat (164), and a third linear motor (165). The second linear guide rail (161) is provided in two and is fixedly installed on the workbench (20) in parallel. The sliding end of the second linear guide rail (161) is fixedly connected to the support base (162). The base (163) is connected between the support bases (162). Multiple adsorption seats (164) are evenly distributed on the top of the base (163). The third linear motor (165) is provided between the second linear guide rails (161). The third linear motor (165) is fixedly installed on the workbench (20). The driving end of the third linear motor (165) is fixedly connected to the bottom of the base (163).

7. A dry ice cleaning device for mobile phone back covers according to claim 6, characterized in that: The nozzle motion module (18) includes a support frame (181), a fourth linear motor (182), a second mounting plate (183), a drive motor (184), a third linear guide rail (185), and a mounting bracket (186). The bottom end of the support frame (181) is fixedly mounted on the workbench (20), and the fourth linear motor (182) is fixedly mounted on one side of the top of the support frame (181). The drive end of the fourth linear motor (182) is fixedly connected to one end of the second mounting plate (183). A drive motor (184) is fixedly installed at the middle of the other end. The output shaft of the drive motor (184) is fixedly connected to a lead screw, and the lead screw is connected to the middle of one side of the mounting bracket (186) through a threaded structure. The sliders of the linear guide rail three (185) are fixedly connected to both ends of one side of the mounting bracket (186). The linear guide rail three (185) is fixedly installed on the mounting plate two (183). Multiple evenly distributed dry ice spray nozzle assemblies (17) are fixedly installed at the bottom of the other side of the mounting bracket (186).

8. A dry ice cleaning device for mobile phone back covers according to claim 7, characterized in that: The dry ice spray nozzle assembly (17) includes multiple spray nozzles (171) and multiple ion air knife drying nozzles (172). Each spray nozzle (171) and each ion air knife drying nozzle (172) are grouped together and each group is fixedly installed on the mounting bracket (186). The spray nozzles (171) and ion air knife drying nozzles (172) in a single group are arranged in a front-to-back position.

9. A dry ice cleaning device for mobile phone back covers according to claim 8, characterized in that: The dirt collection assembly (22) includes a dirt and exhaust gas collection box (201), a dirt and exhaust gas collection sheet metal cover (202), a linkage actuator sheet metal baffle (203), and an exhaust gas fan mounting plate (204). The dirt and exhaust gas collection box (201) is slidably disposed in the frame (21) and is located at the bottom of the workbench (20). The top of the dirt and exhaust gas collection box (201) is provided with a dirt and exhaust gas collection sheet metal cover (202). The dirt and exhaust gas collection cover (202) is fixed. A fixed connecting support frame (181) is provided. An exhaust fan mounting plate (204) is fixedly connected to one side of the outer wall of the dirt collection sheet metal cover (202). Multiple exhaust fans (8) are fixedly installed on the exhaust fan mounting plate (204). The exhaust fan mounting plate (204) is fixedly connected to the frame (21). A linkage actuator sheet metal baffle (203) is provided on one side of the dirt collection sheet metal cover (202). The linkage actuator sheet metal baffle (203) is fixedly connected to the base (163).

10. A dry ice cleaning device for mobile phone back covers according to claim 1, characterized in that: The material handling module (19) includes a linear motor (191), an adjusting cylinder (192), a suction cup seat (193), and a suction cup (194). The linear motor (191) is fixedly mounted on the workbench (20) by a bracket. The driving end of the linear motor (191) is fixedly connected to two symmetrically arranged adjusting cylinders (192). The bottom of the adjusting cylinder (192) is fixedly connected to a plurality of suction cup seats (193). The four corners of the suction cup seats (193) are fixedly mounted with suction cups (194).

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