A mobile phone back cover continuous polishing device

Abstract

The present invention provides a continuous polishing device for mobile phone back covers, which relates to the technical field of polishing equipment. The device comprises a conveying mechanism, multiple sets of fixing mechanisms, a polishing mechanism, and a feeding mechanism. The conveying mechanism comprises a frame, on which a conveying chain and a transmission motor for driving the conveying chain are provided, and multiple transmission plates are spaced apart on the conveying chain; multiple sets of fixing mechanisms are arranged in a one-to-one correspondence on the transmission plate; the polishing mechanism comprises a polishing seat, a polishing motor, a polishing disc, and a transverse member for driving the polishing seat to move along the width direction of the frame; the feeding mechanism comprises a mounting plate mounted on the top of the frame, the mounting plate being provided with a placement rack for placing mobile phone back covers, the mounting plate being provided with a through slot and a conveying assembly for conveying the mobile phone back covers one by one to the through slot, and both sides of the mounting plate being provided with a pressing member for pressing the mobile phone back covers against the fixing mechanism. The present invention can continuously convey mobile phone back covers to ensure the continuous progress of the polishing process, thereby improving the efficiency of batch operations.

Description

Technical Field

[0001] The present invention relates to the technical field of polishing equipment, and in particular to a continuous polishing device for a mobile phone back cover. Background Art

[0002] The polishing process of mobile phone back covers is a critical step in ensuring product quality, and the quality of the process directly affects the final product's appearance and user experience. Traditionally, polishing mobile phone back covers relies on manual labor, which is inefficient and difficult to control. Therefore, more and more manufacturers are adopting automated, dedicated polishing equipment, which has improved production efficiency to a certain extent while ensuring product quality.

[0003] Chinese patent application number CN202410612051.3 discloses a polishing device for the back cover of a mobile phone, including a flexible fixing mechanism that can fix the back cover of the mobile phone; a first reciprocating mechanism symmetrically arranged directly above the flexible fixing mechanism; an acceleration transmission mechanism arranged on the moving end of the first reciprocating mechanism; a polishing plate arranged at the power output end of the acceleration transmission mechanism, and a plurality of arc-shaped polishing blocks are arranged in a circular array on the outer peripheral side thereof, and an arc-shaped lifting block is arranged between adjacent polishing blocks, and the arc directions of the polishing block and the lifting block are opposite.

[0004] The above technical solution requires manual loading and unloading by staff before and after polishing each mobile phone back cover, resulting in complicated processing steps and poor continuity of the polishing operation. Summary of the Invention

[0005] The purpose of the present invention is to provide a mobile phone back cover continuous polishing device, which can automatically and continuously convey the mobile phone back cover, thereby ensuring the continuous progress of the polishing process and improving the efficiency of batch operations.

[0006] The present invention is realized through the following technical solutions: a continuous polishing device for the back cover of a mobile phone, comprising: a conveying mechanism, the conveying mechanism comprising a frame, the frame being provided with a conveying chain and a transmission motor for driving the conveying chain, a plurality of transmission plates being distributed at intervals on the conveying chain; a plurality of sets of fixing mechanisms, the plurality of sets of fixing mechanisms being arranged one-to-one on the transmission plate, the fixing mechanism comprising a base body and a plurality of sets of pressing members distributed circumferentially on the side wall of the base body, a cavity being opened in the base body, a pressing member being provided in the cavity for driving the pressing member to extend outward from the outside of the base body, and a pressing member being provided on the outside of the base body for driving the pressing member to extend outward from the outside of the base body A retracting part that retracts into the seat body; a grinding mechanism, the grinding mechanism includes a grinding seat, a grinding motor is provided on the grinding seat, a grinding disk is provided on the output shaft of the grinding motor, and a transverse member for driving the grinding seat to move along the width direction of the frame is provided on the frame; a feeding mechanism, the feeding mechanism includes a mounting plate mounted on the top of the frame, a placement rack for placing the back cover of the mobile phone is provided on the mounting plate, a through slot and a conveying assembly for conveying the back covers of the mobile phones to the through slot one by one, and both sides of the mounting plate are provided with a clamping member for pressing the back cover of the mobile phone against the fixing mechanism.

[0007] Furthermore, the conveying assembly includes a toggle member relatively arranged on both sides of the through groove; the toggle member includes two first support blocks and a first rotating shaft rotatably connected between the two first support blocks, and a toggle roller is provided in the middle section of the first rotating shaft, and a plurality of abutment strips are evenly distributed circumferentially on the toggle roller; when the toggle rollers of the two groups of the toggle members are rotated until the abutment strips are facing each other, the abutment strips can press against the back cover of the mobile phone.

[0008] Furthermore, a driving member for driving the two first rotating shafts to rotate synchronously in opposite directions is provided between the two groups of the toggle members, and the driving member includes two second support blocks and a second rotating shaft rotatably connected between the two second support blocks, and driving bevel gears are provided at both ends of the second rotating shaft, and a driven bevel gear meshing with the driving bevel gear is provided at one end of the first rotating shaft close to the second rotating shaft, and a worm gear mechanism for driving the second rotating shaft to rotate is provided on the mounting plate and on one side of the second rotating shaft.

[0009] Furthermore, the clamping part includes a rigid part and an elastic part, the rigid part is rotatably connected to the mounting plate through a rotating seat, the elastic part is arranged at one end of the rigid part away from the rotating seat and is located in the through groove, the mounting plate is provided with a compression spring for driving the rigid part to flip upward, and the first rotating shaft is provided with a downward pressing part for driving the rigid part to periodically flip downward.

[0010] Furthermore, the pressing member includes a pressing sleeve, a plurality of pressing blocks are evenly distributed circumferentially on the pressing sleeve, and the number of the abutting strips is twice the number of the pressing blocks.

[0011] Furthermore, the elastic part includes a plurality of splicing pieces hinged in sequence, a limiting block is provided between two adjacent splicing pieces, and an elastic reset piece is connected between the plurality of splicing pieces, the limiting block is located on the outer side surface of the elastic part, and the elastic reset piece is located on the inner side surface of the elastic part.

[0012] Furthermore, the clamping member includes a clamping block, the base body is provided with a sliding groove for the clamping block to slide, one end of the clamping block extends out of the base body and is provided with two elastic abutting pieces; the pressure member includes a clamping block, the top of the clamping block is provided with a first curved surface all around, and the end of the clamping block located in the base body is provided with a second curved surface, when the clamping block moves toward the bottom wall of the cavity, the first curved surface abuts against the second curved surface and drives the clamping block to move out of the base body; the contraction member includes an elastic contraction band, the elastic contraction band is provided with a through hole for the elastic abutting piece to extend out, and the clamping block is provided with a limiting step that can abut against the elastic contraction band.

[0013] Furthermore, the seat body is fixedly arranged on the transmission plate through a connecting frame, a center sleeve is fixedly arranged in the middle of the connecting frame, a pressure screw is threadedly connected to the transmission plate, one end of the pressure screw passes through the center sleeve and is rotatably connected to the pressure block, and a rotating disk is arranged at the other end of the pressure screw.

[0014] Furthermore, two groups of tensioning mechanisms for driving the pressure screw to rotate are provided on the frame. In horizontal projection, the two groups of tensioning mechanisms are located between the feeding mechanism and the grinding mechanism and are arranged opposite to each other. When the transmission plate moves along the upper conveying surface of the conveying chain, one group of tensioning mechanisms can drive the pressure screw to rotate and move toward the pressure block. When the transmission plate moves along the lower conveying surface of the conveying chain, the other group of tensioning mechanisms can drive the pressure screw to rotate and move away from the pressure block.

[0015] Furthermore, a discharge piece is provided on the frame and at the lower part of the conveyor chain, and the discharge piece includes connecting rods relatively arranged on both sides of the frame, and a discharge rod is obliquely provided on the connecting rod. When the transmission plate moves toward the direction close to the discharge rod, the discharge rod can push the back cover of the mobile phone and separate the back cover of the mobile phone from the base. A conveyor belt for conveying the back cover of the mobile phone is provided below the discharge rod.

[0016] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0017] 1. The present invention periodically transports the transmission plate through a conveying mechanism, and sets a fixing mechanism on each transmission plate to realize the conveying process of the mobile phone back cover, thereby improving the efficiency of the grinding operation; the state of the fixing mechanism is automatically switched through the loosening mechanism to facilitate the loading and unloading process of the mobile phone back cover, eliminating the need for manual loading and unloading by staff, and simplifying the operating steps of the grinding operation.

[0018] 2. The present invention uses a conveying assembly to convey the back covers of mobile phones stacked on the placement rack to the through slot one by one. After passing through the through slot, the back covers of the mobile phones fall onto the fixing mechanism. The pressing member presses the fallen back covers of the mobile phones downward so that the back covers of the mobile phones are closed on the fixing mechanism, so as to quickly realize the preliminary positioning process of the back covers of the mobile phones.

[0019] 3. The present invention provides a discharge piece to move the back cover of the mobile phone and separate the back cover of the mobile phone from the base. The dropped back cover of the mobile phone is transported to a designated direction via a conveyor belt to facilitate collection by staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the conveying assembly and the pressing member of the present invention;

[0023] Figure 4 Schematic diagram of the structure of the pressing member of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the fixing mechanism of the present invention;

[0025] Figure 6 This is a schematic structural diagram of the pressing block, the tightening member and the elastic shrinkage band on the seat body of the present invention;

[0026] Figure 7 for Figure 6 A magnified view of part A;

[0027] Figure 8 It is a structural schematic diagram of the pressing member, the connecting frame and the transmission plate of the present invention;

[0028] Figure 9 This is a schematic structural diagram of the tensioning mechanism of the present invention on the frame;

[0029] Figure 10 It is a structural schematic diagram of the tensioning mechanism of the present invention;

[0030] Figure 11 This is a schematic diagram of the structure of the unloading piece on the frame of the present invention;

[0031] Figure 12 This is a schematic diagram of the structure of the unloading component of the present invention when removing the back cover of a mobile phone;

[0032] Figure numerals: 1-conveying mechanism, 11-frame, 12-conveying chain, 13-transmission motor, 14-transmission plate, 2-fixing mechanism, 21-base, 211-cavity, 22-tightening member, 221-tightening block, 2211-second arc-shaped surface, 2212-limiting step, 222-elastic abutting piece, 23-pressing member, 231-pressing block, 2311-first arc-shaped surface, 232-pressing Screw, 233-rotating disk, 2331-convex strip, 24-contraction part, 241-elastic contraction band, 25-connecting frame, 251-center sleeve, 3-grinding mechanism, 31-grinding seat, 32-grinding motor, 33-grinding disk, 34-transverse member, 4-feeding mechanism, 41-mounting plate, 42-placement frame, 43-conveying assembly, 431-sliding member, 4311-first support block, 4312- First rotating shaft, 4313-swivel roller, 4314-contact bar, 432-driving member, 4321-second support block, 4322-second rotating shaft, 4323-driving bevel gear, 4324-driven bevel gear, 4325-worm gear mechanism, 44-pressing member, 441-rigid part, 4411-rotating seat, 4412-compression spring, 442-elastic part, 4421-splicing piece, 4422- Limit block, 4423-elastic reset plate, 443-pressing piece, 4431-pressing sleeve, 4432-pressing block, 5-elasticity mechanism, 51-elasticity seat, 511-friction surface, 512-inclined surface, 52-tightening rod, 521-first support rod, 522-second support rod, 523-tightening spring, 6-discharging piece, 61-connecting rod, 62-discharging rod, 63-conveyor belt, 631-receiving trough. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0035] Example

[0036] The following reference Figures 1-12 As shown, further described in conjunction with specific embodiments, this embodiment provides a mobile phone back cover continuous polishing device, referring to Figure 1 As shown, the conveying mechanism 1 includes a frame 11, a conveying chain 12 and a transmission motor 13 for driving the conveying chain 12 are provided on the frame 11, and a plurality of transmission plates 14 are distributed at intervals on the conveying chain 12; the transmission motor 13 drives the conveying chain 12 to move, that is, it can drive the plurality of transmission plates 14 to perform periodic circumferential motion around the conveying chain 12 at the same time. Each transmission plate 14 is provided with a fixing mechanism 2 for fixing the position of the back cover of the mobile phone, so as to stabilize the back cover of the mobile phone and prevent the back cover of the mobile phone from slipping or falling during the grinding operation or the transmission process; the top side of the frame 11 is provided with a feeding mechanism 4 for conveying the back covers of the mobile phone one by one to the fixing mechanism 2, and multiple mobile phone back covers are stacked on the feeding mechanism 4. When each group of fixing mechanisms 2 passes under the conveying mechanism 1, the feeding mechanism 4 can convey the back cover of the mobile phone at the bottom to the fixing mechanism 2; the frame 11 is provided with a grinding mechanism 3. When the back cover of the mobile phone is installed on the fixing mechanism 2, the grinding mechanism 3 can complete the grinding operation of the back cover of the mobile phone.

[0037] Reference Figure 1 As shown, the polishing mechanism 3 includes a polishing base 31, on which is mounted a polishing motor 32. A polishing disc 33 is coaxially connected to the output shaft of the polishing motor 32. A transverse member 34 is provided on the frame 11 for driving the polishing base 31 to move along the width of the frame 11. When the polishing motor 32 is activated, the polishing disc 33 rotates, which in turn is driven by the transverse member 34 to periodically move the polishing base 31 along the width of the frame 11, thereby polishing the back cover of the mobile phone. It should be noted that the transmission motor 13 is a stepper motor, which advances the transmission plate 14 a specified distance each time. The transmission plate 14 drives the fixed mechanism 2 to move synchronously, so that the back cover of the mobile phone moves a specified distance along the length of the frame 11 each time. After each movement of the mobile phone back cover, the transverse member 34 drives the polishing base 31 to polish the back cover of the mobile phone along the width of the frame 11. The polishing process is completed when the back cover of the mobile phone passes the position of the polishing mechanism 3. In this embodiment, the traverse member 34 is an electric traverse cylinder, and a support is welded to the frame 11. The cylinder barrel of the electric traverse cylinder is fixedly mounted on the support, and the length direction of the piston rod of the electric traverse cylinder is consistent with the width direction of the frame 11. In other embodiments, a motor screw assembly or a hydraulic cylinder can also be used as the traverse member 34.

[0038] Reference Figure 2As shown, the feeding mechanism 4 includes a mounting plate 41 mounted on the top of the frame 11. A vertically disposed rack 42 is provided on the mounting plate 41 for stacking the mobile phone back covers. The mounting plate 41 is provided with a through slot and a conveying assembly 43 for conveying the mobile phone back covers individually into the through slot. Both sides of the mounting plate 41 are provided with pressing members 44 for pressing the mobile phone back covers against the fixing mechanism 2. When the mobile phone back cover moves below the through slot, the conveying assembly 43 conveys the lowest mobile phone back cover in the rack 42 downward. After passing through the through slot, the mobile phone back cover falls onto the fixing mechanism 2. The pressing member 44 presses the dropped mobile phone back cover downward so that it can be covered on the fixing mechanism 2, completing the initial positioning process.

[0039] Reference Figure 2 、 Figure 3 As shown, the conveying assembly 43 includes toggle members 431 relatively arranged on both sides of the through slot, and a driving member 432 is provided between the two groups of toggle members 431; each group of toggle members 431 includes two first support blocks 4311 and a first rotating shaft 4312 rotatably connected between the two first support blocks 4311, and a toggle roller 4313 is provided in the middle section of the first rotating shaft 4312, and a plurality of abutting bars 4314 are evenly distributed circumferentially on the toggle roller 4313; when the toggle rollers 4313 of the two groups of toggle members 431 are rotated until the abutting bars 4314 face each other, the abutting bars 4314 can press against the back cover of the mobile phone. A pressing member 44 is rotatably installed on both sides of the bottom of the first rotating shaft 4312 on the mounting plate 41, and a lower pressing member 443 for driving the pressing member 44 to rotate downward is provided at both ends of the first rotating shaft 4312. Figure 4 As shown, the pressing member 443 includes a pressing sleeve 4431 , and a plurality of pressing blocks 4432 are evenly distributed circumferentially on the pressing sleeve 4431 , and the number of the abutting strips 4314 is twice the number of the pressing blocks 4432 . In the initial state, the first group of abutment bars 4314 on the two tossing rollers 4313 facing each other are pressed against the bottom mobile phone back cover to ensure the stability of the multiple mobile phone back covers stacked on the feeding mechanism 4; the driving member 432 drives the two first rotating shafts 4312 to rotate in the opposite direction at a specified angle at the same time, the first group of abutment bars 4314 separates from the mobile phone back cover, and the mobile phone back cover at the bottom falls onto the fixing mechanism 2 below the through slot through the through slot, and the second group of abutment bars 4314 on the two tossing rollers 4313 abuts against the bottom of the next mobile phone back cover; then the driving member 432 drives the two first rotating shafts 4312 to rotate in the opposite direction at a specified angle again, and after the second group of abutment bars 4314 separates from the mobile phone back cover, the mobile phone back cover continues to move downward a specified distance until the third group of abutment bars 4314 abuts against the top of the mobile phone back cover.

[0040] By setting the number of abutment bars 4314 to twice the number of pressing blocks 4432, each time the first rotating shaft 4312 rotates twice, the toggle member 431 switches from positioning one phone back cover to positioning the next, and the pressing block 443 presses the phone back cover downward. During the rotation of the first rotating shaft 4312, when the first set of abutment bars 4314 separates from the phone back cover, the pressing block 4432 has not yet contacted the pressing member 44, and will not affect the falling of the phone back cover. When the second set of abutment bars 4314 separates from the phone back cover, the pressing block 4432 drives the pressing member 44 to rotate downward and press the phone back cover that has fallen onto the fixing mechanism 2.

[0041] Reference Figure 3 As shown, the driving member 432 includes two second support blocks 4321 and a second rotating shaft 4322 rotatably connected between the two second support blocks 4321. A driving bevel gear 4323 is provided at each end of the second rotating shaft 4322. A driven bevel gear 4324 meshing with the driving bevel gear 4323 is provided at the end of the first rotating shaft 4312 proximate to the second rotating shaft 4322. A worm gear mechanism 4325 is provided on the mounting plate 41, located on one side of the second rotating shaft 4322, for driving the second rotating shaft 4322. Activating the worm gear mechanism 4325 rotates the second rotating shaft 4322, causing the driving bevel gears 4323 at each end of the second rotating shaft 4322 to rotate synchronously, respectively driving the driven bevel gears 4324 on the two first rotating shafts 4312 to rotate in opposite directions. This causes the paddle roller 4313 to drive the abutment bar 4314 to move accordingly, simultaneously lowering the phone back covers one by one on either side.

[0042] Reference Figure 3 、 Figure 4 As shown, the pressing member 44 includes a rigid part 441 and an elastic part 442. The rigid part 441 is rotatably connected to the mounting plate 41 through a rotating seat 4411. The elastic part 442 is arranged at one end of the rigid part 441 away from the rotating seat 4411 and is located in the through groove. A compression spring 4412 is provided on the mounting plate 41 for driving the rigid part 441 to flip upward. The first rotating shaft 4312 can drive the pressing member 443 to drive the rigid part 441 to periodically flip downward, so that the elastic part 442 presses the back cover of the mobile phone that falls onto the fixing mechanism 2, so that the back cover of the mobile phone is tightly attached to the fixing mechanism 2.

[0043] Reference Figure 4As shown, the elastic portion 442 includes a plurality of splicing pieces 4421 hinged in sequence, with a limit block 4422 provided between each adjacent splicing piece 4421. An elastic return piece 4423 is connected between the plurality of splicing pieces 4421. The limit block 4422 is located on the outer side of the elastic portion 442, and the elastic return piece 4423 is located on the inner side of the elastic portion 442. When the back cover of the mobile phone touches the elastic portion 442 while falling down from the through slot, the elastic return piece 4423 has the ability to bend, so that the back cover of the mobile phone can fall smoothly. When the rigid portion 441 flips downward and drives the elastic portion 442 to press against the back cover of the mobile phone, the elastic portion 442 will not bend in the opposite direction under the action of the limit block 442, thereby ensuring the tight contact between the back cover of the mobile phone and the mobile phone.

[0044] Reference Figure 5 、 Figure 6 As shown, the fixing mechanism 2 includes a base 21 and a plurality of sets of fastening members 22 distributed circumferentially on the side wall of the base 21. Figure 7 As shown, the abutting member 22 includes a abutting block 221. The base 21 is provided with a slide groove for the abutting block 221 to slide. One end of the abutting block 221 extends outside the base 21 and is provided with two elastic abutting pieces 222. The base 21 has a cavity 211, within which is provided a pressing member 23 for driving the abutting member 22 to extend outward from the base 21. The base 21 is provided with a retracting member 24 for driving the abutting member 22 to retract into the base 21. The retracting member 24 includes an elastic retractable band 241, which has a through hole for the elastic abutting piece 222 to extend outward. The abutting block 221 is provided with a limiting step 2212 capable of abutting against the elastic retractable band 241. In the initial state, the pressing block 221 moves toward the inside of the base body 21 under the action of the elastic shrinkage band 241. At this time, the elastic contact piece 222 is in a natural state, and in this state it can play a preliminary contact role on the back cover of the mobile phone; when the pressing member 23 drives the pressing block 221 to move out of the base body 21, the elastic contact piece 222 is in a bent state and has a large elastic potential energy, so it can press the back cover of the mobile phone and prevent the back cover of the mobile phone from moving, thereby achieving a fixing effect on the back cover of the mobile phone; when the pressing member 23 moves back to the initial position, it no longer applies force to the pressing block 221. Under the elastic force of the elastic shrinkage band 241, the limiting step 2212 can drive the pressing block 221 to move back to the initial position, so as to facilitate the removal of the back cover of the mobile phone from the fixing mechanism 2 after the subsequent polishing operation is completed.

[0045] Reference Figure 6 、 Figure 8As shown, the pressing member 23 includes a pressing block 231, and a first curved surface 2311 is provided on all four sides of the top of the pressing block 231. A second curved surface 2211 is provided on one end of the pressing block 221 located in the base body 21. When the pressing block 231 moves toward the bottom wall of the cavity 211, the first curved surface 2311 abuts against the second curved surface 2211 and drives the pressing block 221 to move outward from the base body 21; the base body 21 is fixed to the transmission plate 14 through a connecting frame 25, and a center sleeve 251 is fixedly provided in the middle of the connecting frame 25, and a pressing screw 232 is threadedly connected to the transmission plate 14, one end of the pressing screw 232 passes through the center sleeve 251 and is rotatably connected to the pressing block 231, and the other end of the pressing screw 232 is provided with a rotating disk 233. When the pressing screw 232 is rotated by the rotating disk 233, the pressing screw 232 can apply pressure to the pressing block 231 and drive the pressing block 231 to move toward the bottom wall of the cavity 211, so that under the abutment of the first curved surface and the second curved surface 2211, the pressing block 221 is driven to move outward from the base body 21 so that the elastic abutting piece 222 presses the back cover of the mobile phone.

[0046] Reference Figure 9 As shown, two sets of tensioning mechanisms 5 for driving the pressure screw 232 to rotate are provided on the frame 11. In horizontal projection, the two sets of tensioning mechanisms 5 are located between the feeding mechanism 4 and the grinding mechanism 3 and are arranged opposite each other. When the transmission plate 14 moves along the upper conveying surface of the conveyor chain 12, one set of tensioning mechanisms 5 can drive the pressure screw 232 to rotate and move toward the pressure block 231. When the transmission plate 14 moves along the lower conveying surface of the conveyor chain 12, the other set of tensioning mechanisms 5 can drive the pressure screw 232 to rotate and move away from the pressure block 231. It should be noted that, in this embodiment, the upper conveying surface of the conveyor chain 12 is the horizontal surface of the conveyor chain 12 away from the ground, and the lower conveying surface of the conveyor chain 12 is the horizontal surface of the conveyor chain 12 facing the ground.

[0047] Reference Figure 9 、 Figure 10As shown, the tensioning mechanism 5 includes a tensioning seat 51, which is arranged along the length direction of the frame 11, and a tightening rod 52 is connected between the tensioning seat 51 and the frame 11. The tightening rod 52 is an elastic telescopic rod composed of a first support rod 521, a second support rod 522 and a tightening spring 523. The first support rod 521 is welded to the frame 11, and the second support rod 522 is slidably connected to the first support rod 521. The tightening spring 523 is connected between the first support rod 521 and the second support rod 522, and the tensioning seat 51 is fixedly mounted on the end of the second support rod 522 away from the first support rod 521; the tensioning seat 51 has a friction surface 511 on the side facing the center position in the width direction of the frame 11, and a plurality of convex strips 2331 are distributed on the side wall of the rotating disk 233 along its own circumferential direction, and an inclined surface 512 for the rotating disk 233 to enter is opened at one end of the tensioning seat 51. During the process of the conveying mechanism 1 conveying the fixing mechanism 2, the rotating disk 233 can enter the friction surface 511 of the elastic seat 51 through the inclined surface 512. Under the action of the friction surface 511 and the convex strip 2331, the rotating disk 233 can rotate and drive the pressing screw 232 to press the pressing block 231, so that the pressing block 231 drives the tight block 221 to move outward from the seat body 21 to achieve the positioning effect on the back cover of the mobile phone.

[0048] Reference Figure 11 、 Figure 12 As shown, a discharge member 6 is provided on the frame 11 and below the conveyor chain 12. The discharge member 6 includes connecting rods 61 arranged on opposite sides of the frame 11. Discharge rods 62 are obliquely provided on the connecting rods 61. When the transmission plate 14 moves toward the discharge rods 62, the discharge rods 62 can move the back cover of the mobile phone and separate the mobile phone back cover from the base 21. A conveyor belt 63 for conveying the mobile phone back cover is provided below the discharge rods 62. When the mobile phone back cover passes the position of the discharge rods 62, the discharge rods 62 can move the mobile phone back cover. The dropped mobile phone back cover is conveyed by the conveyor belt 63 in a designated direction for easy collection by staff. A receiving trough 631 is also provided on one side of the conveyor belt 63. The receiving trough 631 is inclined upward and extends toward the direction of the tensioning mechanism 5 located below. It is convenient for receiving the mobile phone back cover that has fallen after passing through the tensioning mechanism 5 located below and guiding it to the conveyor belt 63.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A mobile phone back cover continuous polishing device, characterized in that: include: A conveying mechanism (1), the conveying mechanism (1) comprising a frame (11), a conveying chain (12) and a transmission motor (13) for driving the conveying chain (12) are provided on the frame (11), and a plurality of transmission plates (14) are spaced apart on the conveying chain (12); A plurality of fixing mechanisms (2), wherein the plurality of fixing mechanisms (2) are arranged on the transmission plate (14) in a one-to-one correspondence, the fixing mechanisms (2) comprising a seat body (21) and a plurality of pressing members (22) circumferentially distributed on the side wall of the seat body (21), a cavity (211) being provided in the seat body (21), a pressing member (23) being provided in the cavity (211) for driving the pressing member (22) to extend outward from the seat body (21), and a retracting member (24) being provided on the outer side of the seat body (21) for driving the pressing member (22) to retract into the seat body (21); A grinding mechanism (3), the grinding mechanism (3) comprising a grinding seat (31), a grinding motor (32) being provided on the grinding seat (31), a grinding disc (33) being provided on the output shaft of the grinding motor (32), and a transverse member (34) being provided on the frame (11) for driving the grinding seat (31) to move along the width direction of the frame (11); A feeding mechanism (4), the feeding mechanism (4) comprising a mounting plate (41) mounted on the top of a frame (11), a placement rack (42) for placing mobile phone back covers on the mounting plate (41), a through slot and a conveying assembly (43) for conveying the mobile phone back covers one by one to the through slot, and pressing members (44) for pressing the mobile phone back covers against the fixing mechanism (2) on both sides of the mounting plate (41); The conveying assembly (43) includes a toggle member (431) relatively arranged on both sides of the through slot; the toggle member (431) includes two first support blocks (4311) and a first rotating shaft (4312) rotatably connected between the two first support blocks (4311); a toggle roller (4313) is provided in the middle section of the first rotating shaft (4312); a plurality of abutment bars (4314) are uniformly distributed circumferentially on the toggle roller (4313); when the toggle rollers (4313) of the two groups of toggle members (431) rotate until the abutment bars (4314) face each other, the abutment bars (4314) can abut against the back cover of the mobile phone; The pressing member (44) includes a rigid portion (441) and an elastic portion (442), wherein the rigid portion (441) is rotatably connected to the mounting plate (41) via a rotating seat (4411), and the elastic portion (442) is arranged at one end of the rigid portion (441) away from the rotating seat (4411) and is located in the through groove, and a compression spring (4412) for driving the rigid portion (441) to flip upward is provided on the mounting plate (41), and a pressing member (443) for driving the rigid portion (441) to periodically flip downward is provided on the first rotating shaft (4312).

2. The mobile phone back cover continuous polishing device according to claim 1, characterized in that: A driving member (432) for driving the two first rotating shafts (4312) to rotate synchronously in opposite directions is provided between the two groups of the toggle members (431). The driving member (432) includes two second support blocks (4321) and a second rotating shaft (4322) rotatably connected between the two second support blocks (4321). Both ends of the second rotating shaft (4322) are provided with driving bevel gears (4323). One end of the first rotating shaft (4312) close to the second rotating shaft (4322) is provided with a driven bevel gear (4324) meshing with the driving bevel gear (4323). A worm gear mechanism (4325) for driving the second rotating shaft (4322) to rotate is provided on the mounting plate (41) and located on one side of the second rotating shaft (4322).

3. The mobile phone back cover continuous polishing device according to claim 1, characterized in that: The pressing member (443) includes a pressing sleeve (4431), and a plurality of pressing blocks (4432) are evenly distributed circumferentially on the pressing sleeve (4431). The number of the abutting strips (4314) is twice the number of the pressing blocks (4432).

4. The mobile phone back cover continuous polishing device according to claim 1, characterized in that: The elastic portion (442) comprises a plurality of splicing pieces (4421) hinged in sequence, a limiting block (4422) is provided between two adjacent splicing pieces (4421), and an elastic return piece (4423) is connected between the plurality of splicing pieces (4421), the limiting block (4422) is located on the outer side surface of the elastic portion (442), and the elastic return piece (4423) is located on the inner side surface of the elastic portion (442).

5. The mobile phone back cover continuous polishing device according to claim 1, characterized in that: The pressing member (22) includes a pressing block (221), a sliding groove for the pressing block (221) to slide is provided on the seat (21), one end of the pressing block (221) extends out of the seat (21) and is provided with two elastic contact pieces (222); the pressing member (23) includes a pressing block (231), a first arcuate surface (2311) is provided on all four sides of the top of the pressing block (231), and a second arcuate surface (2211) is provided on one end of the pressing block (221) located inside the seat (21). ), when the pressing block (231) moves toward the bottom wall of the cavity (211), the first arcuate surface (2311) abuts against the second arcuate surface (2211) and drives the pressing block (221) to move outward from the seat body (21); the shrinking member (24) includes an elastic shrinking band (241), a through hole is provided on the elastic shrinking band (241) for the elastic abutting piece (222) to extend, and a limiting step (2212) is provided on the pressing block (221) that can abut against the elastic shrinking band (241).

6. The mobile phone back cover continuous polishing device according to claim 5, characterized in that: The seat body (21) is fixedly arranged on the transmission plate (14) through a connecting frame (25); a central sleeve (251) is fixedly arranged in the middle of the connecting frame (25); a pressing screw (232) is threadedly connected to the transmission plate (14); one end of the pressing screw (232) passes through the central sleeve (251) and is rotatably connected to the pressing block (231); and a rotating disk (233) is arranged at the other end of the pressing screw (232).

7. The mobile phone back cover continuous polishing device according to claim 6, characterized in that: Two groups of tensioning mechanisms (5) for driving the pressing screw (232) to rotate are provided on the frame (11). In horizontal projection, the two groups of tensioning mechanisms (5) are located between the feeding mechanism (4) and the grinding mechanism (3) and are arranged opposite to each other. When the transmission plate (14) moves along the upper conveying surface of the conveying chain (12), one group of tensioning mechanisms (5) can drive the pressing screw (232) to rotate and move toward the pressing block (231). When the transmission plate (14) moves along the lower conveying surface of the conveying chain (12), the other group of tensioning mechanisms (5) can drive the pressing screw (232) to rotate and move away from the pressing block (231).

8. The mobile phone back cover continuous polishing device according to claim 1, characterized in that: A discharge member (6) is provided on the frame (11) and at the lower part of the conveying chain (12), and the discharge member (6) includes connecting rods (61) relatively provided on both sides of the frame (11), and a discharge rod (62) is obliquely provided on the connecting rod (61). When the transmission plate (14) moves in a direction close to the discharge rod (62), the discharge rod (62) can move the back cover of the mobile phone and separate the back cover of the mobile phone from the base (21), and a conveyor belt (63) for conveying the back cover of the mobile phone is provided below the discharge rod (62).

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