Continuous grinding device for mobile phone rear cover

Abstract

The invention provides a mobile phone rear cover continuous grinding device, and relates to the technical field of grinding equipment, the mobile phone rear cover continuous grinding device comprises a conveying mechanism, a plurality of groups of fixing mechanisms, a grinding mechanism and a feeding mechanism, the conveying mechanism comprises a frame body, the frame body is provided with a conveying chain and a transmission motor used for driving the conveying chain to transmit, and a plurality of transmission plates are distributed on the conveying chain at intervals; the multiple sets of fixing mechanisms are arranged on the transmission plates in a one-to-one correspondence mode. The grinding mechanism comprises a grinding base, a grinding motor, a grinding disc and a transverse moving piece used for driving the grinding base to move in the width direction of the frame body. The feeding mechanism comprises a mounting plate erected on the top of the frame body, a containing frame for containing the mobile phone rear covers is arranged on the mounting plate, a through groove and a conveying assembly used for conveying the mobile phone rear covers to the through groove one by one are arranged on the mounting plate, and pressing pieces used for pressing the mobile phone rear covers to the fixing mechanism are arranged on the two sides of the mounting plate correspondingly. The mobile phone rear cover conveying device can continuously convey mobile phone rear covers to guarantee continuous proceeding of the grinding procedure, and the efficiency of batch operation is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding equipment, and more particularly, to a continuous grinding device for mobile phone back covers. Background Art

[0002] The grinding process of mobile phone back covers is a crucial step in ensuring product quality, and the processing quality directly affects the appearance and user experience of the final product. Traditional grinding of mobile phone back covers relies on manual operation, which is inefficient and difficult to control in terms of quality. Therefore, more and more production enterprises are currently adopting automated special grinding equipment, which improves production efficiency to a certain extent and ensures product quality at the same time.

[0003] Chinese Patent with application number CN202410612051.3 discloses a grinding device for mobile phone back covers, including a flexible fixing mechanism capable of fixing the mobile phone back cover; a first reciprocating moving mechanism symmetrically arranged directly above the flexible fixing mechanism; an acceleration transmission mechanism arranged on the moving end of the first reciprocating moving mechanism; and a grinding disc arranged at the power output end of the acceleration transmission mechanism, with a plurality of arc-shaped grinding blocks arranged in a circumferential array on its outer peripheral side, and arc-shaped lifting blocks arranged between adjacent grinding blocks, and the arc directions of the grinding blocks and the lifting blocks are opposite.

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

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

[0006] The present invention is achieved through the following technical solutions: A continuous grinding device for a mobile phone back cover, comprising: a conveying mechanism, the conveying mechanism includes a frame body, on which a conveying chain and a driving motor for driving the transmission of the conveying chain are arranged, and a plurality of driving plates are distributed at intervals on the conveying chain; a plurality of fixing mechanisms, the plurality of fixing mechanisms are correspondingly arranged on the driving plates one by one, the fixing mechanism includes a seat body and a plurality of pressing members circumferentially distributed on the side wall of the seat body, a cavity is formed in the seat body, and a pressing member for driving the pressing members to extend out of the seat body is arranged in the cavity, and a contracting member for driving the pressing members to retract into the seat body is arranged on the outer side of the seat body; a grinding mechanism, the grinding mechanism includes a grinding seat, a grinding motor is arranged on the grinding seat, a grinding disc is arranged on the output shaft of the grinding motor, and a transverse moving member for driving the grinding seat to move along the width direction of the frame body is arranged on the frame body; a feeding mechanism, the feeding mechanism includes a mounting plate erected on the top of the frame body, a placing rack for placing the mobile phone back cover is arranged on the mounting plate, a through groove is arranged on the mounting plate and a conveying component for successively conveying the mobile phone back cover to the through groove, and pressing members for pressing the mobile phone back cover against the fixing mechanism are arranged on both sides of the mounting plate.

[0007] Further, the conveying component includes toggling members oppositely arranged on both sides of the through groove; the toggling member includes two first support blocks and a first rotating shaft rotatably connected between the two first support blocks, a toggling roller is arranged in the middle section of the first rotating shaft, and a plurality of abutting strips are circumferentially and evenly distributed on the toggling roller; when the toggling rollers of the two toggling members rotate to make the abutting strips face each other, the abutting strips can all press against the mobile phone back cover.

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

[0009] Further, the pressing member 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, a compression spring for driving the rigid part to turn upwards is arranged on the mounting plate, and a downward pressing member for driving the rigid part to turn downwards periodically is arranged on the first rotating shaft.

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

[0011] Further, the elastic part includes a plurality of splicing pieces hinged in sequence. A limiting block is arranged between every two adjacent splicing pieces. 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] Further, the pressing member includes a pressing block. A sliding groove for the pressing block to slide is formed on the seat body. One end of the pressing block extends out of the seat body and is provided with two elastic abutting pieces; the pressing member includes a pressing block. First arc surfaces are arranged around the top of the pressing block. Second arc surfaces are arranged at one ends of the pressing blocks located inside the seat body. When the pressing block moves towards the bottom wall of the cavity, the first arc surface abuts against the second arc surface and drives the pressing block to move out of the seat body; the contracting member includes an elastic contraction band. A through hole for the elastic abutting piece to extend out is formed on the elastic contraction band. A limiting step capable of abutting against the elastic contraction band is arranged on the pressing block.

[0013] Further, the seat body is fixedly arranged on the transmission plate through a connecting frame. A central sleeve is fixedly arranged in the middle of the connecting frame. A pressing screw is threadedly connected to the transmission plate. One end of the pressing screw passes through the central sleeve and is rotatably connected to the pressing block. A rotating disc is arranged at the other end of the pressing screw.

[0014] Further, two tightening and loosening mechanisms for driving the pressing screw to rotate are arranged on the frame body. In the horizontal projection, the two tightening and loosening 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 of the tightening and loosening mechanisms can drive the pressing screw to rotate and move towards the direction close to the pressing block. When the transmission plate moves along the lower conveying surface of the conveying chain, the other tightening and loosening mechanism can drive the pressing screw to rotate and move away from the pressing block.

[0015] Further, a discharging member is arranged on the frame body and below the conveying chain. The discharging member includes connecting rods oppositely arranged on both sides of the frame body. A discharging rod is obliquely arranged on the connecting rod. When the transmission plate moves towards the direction close to the discharging rod, the discharging rod can dial the mobile phone back cover and separate the mobile phone back cover from the seat body. A conveyor belt for conveying the mobile phone back cover is arranged below the discharging rod.

[0016] The technical solution of the present invention has at least the following advantages and beneficial effects: 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, without the need for manual loading and unloading by staff, thereby simplifying the operation steps of the grinding operation.

[0017] 2. The present invention conveys the back covers of mobile phones stacked on the placement rack to the through slots one by one through the conveying assembly. After passing through the through slots, the back covers of the mobile phones fall onto the fixing mechanism. The clamping 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.

[0018] 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 specified direction via a conveyor belt to facilitate collection by staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the feeding mechanism of the present invention; Figure 3 It is a structural schematic diagram of the conveying assembly and the pressing member of the present invention; Figure 4 It is a structural schematic diagram of the pressing member of the present invention; Figure 5 It is a structural schematic diagram of the fixing mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the pressing block, the tightening member and the elastic shrink belt on the seat body of the present invention; Figure 7 for Figure 6 A magnified view of part A; Figure 8 It is a structural schematic diagram of the pressing member, the connecting frame and the transmission plate of the present invention; Figure 9 It is a schematic diagram of the structure of the tensioning mechanism of the present invention on the frame; Figure 10 It is a structural schematic diagram of the tensioning mechanism of the present invention; Figure 11 It is a schematic diagram of the structure of the unloading piece on the frame of the present invention; Figure 12 This is a schematic diagram of the structure of the unloading member of the present invention when unloading the back cover of a mobile phone; Figure numerals: 1-conveying mechanism, 11-frame, 12-conveying chain, 13-transmission motor, 14-transmission plate, 2-fixing mechanism, 21-seat, 211-cavity, 22-tightening member, 221-tightening block, 2211-second arc surface, 2212-limiting step, 222-elastic abutting sheet, 23-pressing member, 231-pressing block, 2311-first arc surface, 232-pressing Screw, 233-rotating disk, 2331-convex strip, 24-contraction member, 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-placing 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-joining 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

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 here can be arranged and designed in various different configurations.

[0021] 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 claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example The following reference Figures 1-12 As shown, combined with a specific embodiment, this embodiment further illustrates that a mobile phone back cover continuous polishing device is provided, referring to Figure 1As shown in the figure, it includes a conveying mechanism 1. The conveying mechanism 1 includes a frame 11. A conveying chain 12 and a driving motor 13 for driving the conveying chain 12 to rotate are provided on the frame 11. A plurality of driving plates 14 are distributed at intervals on the conveying chain 12. Driving the conveying chain 12 to move by the driving motor 13 can drive a plurality of driving plates 14 to make periodic circumferential movements around the conveying chain 12 at the same time. A fixing mechanism 2 for fixing the position of the mobile phone back cover is arranged on each driving plate 14 to facilitate stabilizing the mobile phone back cover and prevent the mobile phone back cover from slipping or falling during the grinding operation or the conveying process. A feeding mechanism 4 for feeding the mobile phone back covers to the fixing mechanism 2 one by one is arranged on one side of the top of the frame 11. A plurality of mobile phone back covers are stacked and placed on the feeding mechanism 4. When each group of fixing mechanisms 2 passes below the conveying mechanism 1, the feeding mechanism 4 can convey the lowermost mobile phone back cover to the fixing mechanism 2. A grinding mechanism 3 is arranged on the frame 11. After the mobile phone back cover is installed on the fixing mechanism 2, the grinding mechanism 3 can complete the grinding operation on the mobile phone back cover.

[0023] Referring to Figure 1 As shown in the figure, the grinding mechanism 3 includes a grinding seat 31. A grinding motor 32 is installed on the grinding seat 31. A grinding disc 33 is coaxially connected to the output shaft of the grinding motor 32. A transverse moving member 34 for driving the grinding seat 31 to move along the width direction of the frame 11 is arranged on the frame 11. Starting the grinding motor 32 to drive the grinding disc 33 to rotate, and then driving the grinding seat 31 to make periodic movements along the width direction of the frame 11 by the transverse moving member 34 can grind the mobile phone back cover. It should be noted that the driving motor 13 is a stepping motor. Each time the driving plate 14 is conveyed forward by a specified distance, the driving plate 14 drives the fixing mechanism 2 to move synchronously, so that the mobile phone back cover moves a specified distance along the length direction of the frame 11 each time. After the mobile phone back cover moves a specified distance each time, the transverse moving member 34 drives the grinding seat 31 to grind the mobile phone back cover along the width direction of the frame 11. When the mobile phone back cover passes through the position of the grinding mechanism 3, the grinding process is completed. In this embodiment, the transverse moving member 34 is a transverse moving electric cylinder. A support is welded on the frame 11. The cylinder barrel of the transverse moving electric cylinder is fixedly installed on the support and the length direction of the piston rod of the transverse moving electric 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 selected as the transverse moving member 34.

[0024] Referring to Figure 2As shown, the feeding mechanism 4 includes a mounting plate 41 mounted on the top of the frame body 11. A placement rack 42 for stacking mobile phone back covers is arranged on the mounting plate 41 in the vertical direction. A through groove and a conveying component 43 for successively conveying the mobile phone back covers to the through groove are arranged on the mounting plate 41. Pressing components 44 for pressing the mobile phone back covers against the fixing mechanism 2 are arranged on both sides of the mounting plate 41. When the mobile phone back cover moves to the lower part of the through groove, the conveying component 43 conveys the lowermost mobile phone back cover in the placement rack 42 downward. After passing through the through groove, the mobile phone back cover falls onto the fixing mechanism 2, and the pressing component 44 presses the dropped mobile phone back cover downward so that the mobile phone back cover can be closed on the fixing mechanism 2, realizing the preliminary positioning process.

[0025] Referring to Figure 2 、 Figure 3 As shown, the conveying component 43 includes toggling parts 431 oppositely arranged on both sides of the through groove, and a driving component 432 is arranged between the two groups of toggling parts 431; each group of toggling parts 431 includes two first support blocks 4311 and a first rotating shaft 4312 rotatably connected between the two first support blocks 4311. A toggling roller 4313 is arranged in the middle section of the first rotating shaft 4312, and a plurality of abutting strips 4314 are circumferentially and uniformly distributed on the toggling roller 4313; when the toggling rollers 4313 of the two groups of toggling parts 431 rotate to make the abutting strips 4314 face each other, the abutting strips 4314 can all abut tightly against the mobile phone back cover. Pressing components 44 are rotatably installed on both sides of the bottom of the first rotating shaft 4312 on the mounting plate 41, and a downward pressing part 443 for driving the pressing component 44 to rotate downward is arranged at both ends of the first rotating shaft 4312. Referring to Figure 4 As shown, the downward pressing part 443 includes a downward pressing sleeve 4431, and a plurality of downward pressing blocks 4432 are circumferentially and uniformly distributed on the downward pressing sleeve 4431. The number of the abutting strips 4314 is twice the number of the downward pressing blocks 4432. In the initial state, the first group of abutting strips 4314 facing each other on the two toggling rollers 4313 abut tightly against the lowermost mobile phone back cover to ensure the stability of the multiple mobile phone back covers stacked on the feeding mechanism 4; the driving component 432 drives the two first rotating shafts 4312 to rotate simultaneously in the opposite direction by a specified angle, the first group of abutting strips 4314 are separated from the mobile phone back cover, and the lowermost mobile phone back cover falls onto the fixing mechanism 2 located below the through groove through the through groove. The second group of abutting strips 4314 on the two toggling rollers 4313 abut against the bottom of the next mobile phone back cover; then the driving component 432 drives the two first rotating shafts 4312 to rotate simultaneously in the opposite direction by a specified angle again. After the second group of abutting strips 4314 are separated from the mobile phone back cover, the mobile phone back cover continues to move downward by a specified distance until the third group of abutting strips 4314 abut against the top of the mobile phone back cover.

[0026] By setting the number of abutting strips 4314 to be twice the number of pressing blocks 4432, every time the first rotating shaft 4312 rotates twice, the toggling member 431 realizes the switching from positioning one mobile phone back cover to positioning the next mobile phone back cover, and the pressing member 443 realizes the pressing process of the mobile phone back cover. During the rotation of the first rotating shaft 4312, when the first group of abutting strips 4314 are separated from the mobile phone back cover, the pressing block 4432 has not yet contacted the pressing member 44, which will not affect the dropping of the mobile phone back cover; when the second group of abutting strips 4314 are separated from the mobile phone back cover, the pressing block 4432 drives the pressing member 44 to rotate downward and presses the mobile phone back cover that has dropped onto the fixing mechanism 2.

[0027] Refer to Figure 3 As shown, the driving member 432 includes two second supporting blocks 4321 and a second rotating shaft 4322 rotatably connected between the two second supporting blocks 4321. Active bevel gears 4323 are provided at both ends of the second rotating shaft 4322. Driven bevel gears 4324 meshing with the active bevel gears 4323 are provided at one end of the first rotating shaft 4312 close to the second rotating shaft 4322. A worm and worm gear mechanism 4325 for driving the second rotating shaft 4322 to rotate is provided on the mounting plate 41 and on one side of the second rotating shaft 4322. Starting the worm and worm gear mechanism 4325 drives the second rotating shaft 4322 to rotate. The active bevel gears 4323 at both ends of the second rotating shaft 4322 rotate synchronously and respectively drive the driven bevel gears 4324 on the two first rotating shafts 4312 to rotate in the opposite direction, so that the toggling roller 4313 drives the abutting strips 4314 to move accordingly, and at the same time, the mobile phone back covers are placed one by one on both sides of the mobile phone back cover.

[0028] Refer to Figure 3 、 Figure 4 As shown, the pressing member 44 includes a rigid portion 441 and an elastic portion 442. The rigid portion 441 is rotatably connected to the mounting plate 41 through a rotating seat 4411. The elastic portion 442 is provided at one end of the rigid portion 441 away from the rotating seat 4411 and is located in the through groove. A compression spring 4412 for driving the rigid portion 441 to flip upward is provided on the mounting plate 41. The first rotating shaft 4312 can drive the pressing member 443 to drive the rigid portion 441 to flip downward periodically, so that the elastic portion 442 presses the mobile phone back cover that has dropped onto the fixing mechanism 2, so that the mobile phone back cover is closely attached to the fixing mechanism 2.

[0029] Refer to Figure 4As shown, the elastic part 442 includes a plurality of splicing pieces 4421 hinged in sequence. A limiting block 4422 is provided between adjacent two splicing pieces 4421. An elastic reset piece 4423 is connected between the plurality of splicing pieces 4421. The limiting block 4422 is located on the outer side of the elastic part 442, and the elastic reset piece 4423 is located on the inner side of the elastic part 442. When the mobile phone back cover touches the elastic part 442 during the process of falling downward from the through groove, since the elastic reset piece 4423 has the ability to bend, the elastic part 442 can be bent so that the mobile phone back cover can fall smoothly; when the rigid part 441 flips downward and drives the elastic part 442 to press against the mobile phone back cover, under the action of the limiting block 4422, the elastic part 442 will not bend in the reverse direction, so that the pressing effect on the mobile phone back cover can be ensured.

[0030] Referring to Figure 5 , Figure 6 As shown, the fixing mechanism 2 includes a seat body 21 and multiple groups of pressing parts 22 circumferentially distributed on the side wall of the seat body 21. Referring to Figure 7 As shown, the pressing part 22 includes a pressing block 221. A sliding groove for the pressing block 221 to slide is opened on the seat body 21. One end of the pressing block 221 extends out of the seat body 21 and is provided with two elastic abutting pieces 222. A cavity 211 is opened in the seat body 21. A pressing part 23 for driving the pressing part 22 to extend out of the seat body 21 is provided in the cavity 211. A contracting part 24 for driving the pressing part 22 to retract into the seat body 21 is arranged on the outer side of the seat body 21. The contracting part 24 includes an elastic contracting band 241. A through hole for the elastic abutting piece 222 to extend out is opened on the elastic contracting band 241. A limiting step 2212 capable of abutting against the elastic contracting band 241 is provided on the pressing block 221. In the initial state, under the action of the elastic contracting band 241, the pressing block 221 moves towards the inside of the seat body 21. At this time, the elastic abutting piece 222 is in a natural state, and in this state, it can play a preliminary abutting role on the mobile phone back cover; when the pressing part 23 drives the pressing block 221 to move out of the seat body 21, the elastic abutting piece 222 is in a bent state and has a large elastic potential energy, so that it can press the mobile phone back cover tightly and prevent the mobile phone back cover from moving, realizing the fixing effect on the mobile phone back cover; when the pressing part 23 moves back to the initial position and no longer applies a force to the pressing block 221, under the elastic force of the elastic contracting band 241, the limiting step 2212 can drive the pressing block 221 to move back to the initial position to facilitate the removal of the mobile phone back cover from the fixing mechanism 2 after the subsequent grinding operation is completed.

[0031] Referring to Figure 6 , Figure 8As shown, the pressing member 23 includes a pressing block 231. First arc surfaces 2311 are provided around the top of the pressing block 231. Second arc surfaces 2211 are provided at one ends of the pressing blocks 221 located inside the seat body 21. When the pressing block 231 moves towards the bottom wall of the cavity 211, the first arc surfaces 2311 are in contact with the second arc surfaces 2211 and drive the pressing blocks 221 to move out of the seat body 21. The seat body 21 is fixed on the transmission plate 14 through a connecting frame 25. A central sleeve 251 is fixedly provided 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. A rotating disc 233 is provided at the other end of the pressing screw 232. When the pressing screw 232 is rotated through the rotating disc 233, the pressing screw 232 can apply pressure to the pressing block 231 and drive the pressing block 231 to move towards the bottom wall of the cavity 211. Thus, under the contact action between the first arc surface and the second arc surface 2211, the pressing blocks 221 are driven to move out of the seat body 21 so that the elastic contact pieces 222 tightly press the mobile phone back cover.

[0032] Referring to Figure 9 As shown, two tightening and loosening mechanisms 5 for driving the rotation of the pressing screw 232 are provided on the frame body 11. In the horizontal projection, the two tightening and loosening 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 of the tightening and loosening mechanisms 5 can drive the pressing screw 232 to rotate and move towards the direction close to the pressing block 231. When the transmission plate 14 moves along the lower conveying surface of the conveying chain 12, the other tightening and loosening mechanism 5 can drive the pressing screw 232 to rotate and move away from the pressing block 231. It should be noted that in this embodiment, the upper conveying surface of the conveying chain 12 is the horizontal surface on the side of the conveying chain 12 away from the ground, and the lower conveying surface of the conveying chain 12 is the horizontal surface on the side of the conveying chain 12 facing the ground.

[0033] Referring to Figure 9 、 Figure 10As shown in the figure, the tightening mechanism 5 includes a tightening base 51 which is arranged along the length direction of the frame body 11. A pressing rod 52 is connected between the tightening base 51 and the frame body 11. The pressing rod 52 is an elastic telescopic rod composed of a first support rod 521, a second support rod 522 and a pressing spring 523. The first support rod 521 is welded on the frame body 11. The second support rod 522 is slidably connected inside the first support rod 521. The pressing spring 523 is connected between the first support rod 521 and the second support rod 522. The tightening base 51 is fixedly installed at one end of the second support rod 522 away from the first support rod 521. One surface of the tightening base 51 facing the central position in the width direction of the frame body 11 has a friction surface 511. A plurality of convex strips 2331 are distributed along the circumferential direction of the side wall of the rotating disc 233. An inclined surface 512 for the rotating disc 233 to enter is provided at one end of the tightening base 51. During the process of the conveying mechanism 1 conveying the fixing mechanism 2, the rotating disc 233 can enter the friction surface 511 of the tightening base 51 through the inclined surface 512. Under the action of the friction surface 511 and the convex strips 2331, the rotating disc 233 can rotate and drive the pressing screw 232 to press the pressing block 231, so that the pressing block 231 drives the pressing block 221 to move out of the seat body 21 to realize the positioning function of the mobile phone back cover.

[0034] Refer to Figure 11 、 Figure 12 As shown in the figure, a discharging member 6 is provided on the frame body 11 and below the conveying chain 12. The discharging member 6 includes connecting rods 61 oppositely arranged on both sides of the frame body 11. Discharging rods 62 are obliquely arranged on the connecting rods 61. When the transmission plate 14 moves towards the direction close to the discharging rods 62, the discharging rods 62 can dial the mobile phone back cover and make the mobile phone back cover separate from the seat body 21. A conveyor belt 63 for conveying the mobile phone back cover is provided below the discharging rods 62. When the mobile phone back cover passes through the position of the discharging rods 62, the discharging rods 62 can dial the mobile phone back cover. The fallen mobile phone back cover is conveyed in a specified direction by the conveyor belt 63 to facilitate the collection by the staff. A receiving groove 631 is also provided on one side of the conveyor belt 63. The receiving groove 631 is obliquely arranged upwards and extends towards the direction close to the tightening mechanism 5 below, so as to receive some of the mobile phone back covers that fall after passing through the tightening mechanism 5 below and guide this part of the mobile phone back covers into the conveyor belt 63.

[0035] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A continuous polishing device for the back cover of a mobile phone, characterized in that, Including: A conveying mechanism (1), the conveying mechanism (1) includes a frame body (11), a conveying chain (12) is arranged on the frame body (11), and a driving motor (13) for driving the conveying chain (12) to drive is arranged on the frame body (11), and a plurality of driving plates (14) are distributed at intervals on the conveying chain (12); Multiple groups of fixing mechanisms (2), multiple groups of the fixing mechanisms (2) are arranged on the driving plates (14) in one-to-one correspondence, the fixing mechanism (2) includes a seat body (21) and multiple groups of pressing members (22) circumferentially distributed on the side wall of the seat body (21), a cavity (211) is opened in the seat body (21), a pressing member (23) for driving the pressing members (22) to extend out of the seat body (21) is arranged in the cavity (211), and a contracting member (24) for driving the pressing members (22) to retract into the seat body (21) is arranged on the outer side of the seat body (21); A grinding mechanism (3), the grinding mechanism (3) includes a grinding seat (31), a grinding motor (32) is arranged on the grinding seat (31), a grinding disc (33) is arranged on the output shaft of the grinding motor (32), and a transverse moving member (34) for driving the grinding seat (31) to move along the width direction of the frame body (11) is arranged on the frame body (11); A feeding mechanism (4), the feeding mechanism (4) includes a mounting plate (41) erected on the top of the frame body (11), a placing rack (42) for placing the mobile phone back cover is arranged on the mounting plate (41), a through groove and a conveying component (43) for sequentially conveying the mobile phone back cover to the through groove are arranged on the mounting plate (41), and pressing members (44) for pressing the mobile phone back cover against the fixing mechanism (2) are arranged on both sides of the mounting plate (41).

2. The continuous grinding device for the mobile phone back cover according to claim 1, characterized in that, The conveying component (43) includes toggling members (431) oppositely arranged on both sides of the through groove; the toggling member (431) includes two first support blocks (4311) and a first rotating shaft (4312) rotatably connected between the two first support blocks (4311), a toggling roller (4313) is arranged in the middle section of the first rotating shaft (4312), and a plurality of abutting strips (4314) are circumferentially and evenly distributed on the toggling roller (4313); when the toggling rollers (4313) of the two groups of toggling members (431) rotate to make the abutting strips (4314) face each other, the abutting strips (4314) can all press against the mobile phone back cover.

3. The continuous polishing device for the mobile phone back cover according to claim 2, wherein, A driving member (432) for driving the two first rotating shafts (4312) to rotate synchronously and in opposite directions is arranged between the two toggling members (431). The driving member (432) includes two second supporting blocks (4321) and a second rotating shaft (4322) rotatably connected between the two second supporting blocks (4321). Active bevel gears (4323) are arranged at both ends of the second rotating shaft (4322). Driven bevel gears (4324) meshing with the active bevel gears (4323) are arranged at one ends of the first rotating shafts (4312) close to the second rotating shaft (4322). A worm and worm gear mechanism (4325) for driving the second rotating shaft (4322) to rotate is arranged on the mounting plate (41) and on one side of the second rotating shaft (4322).

4. The continuous polishing device for the mobile phone back cover according to claim 2, wherein, The pressing member (44) includes a rigid portion (441) and an elastic portion (442). The rigid portion (441) is rotatably connected to the mounting plate (41) through a rotating seat (4411). 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. A compression spring (4412) for driving the rigid portion (441) to turn upwards is arranged on the mounting plate (41). A pressing member (443) for driving the rigid portion (441) to turn downwards periodically is arranged on the first rotating shaft (4312).

5. The continuous grinding device for the mobile phone back cover according to claim 4, wherein The pressing member (443) includes a pressing sleeve (4431). A plurality of pressing blocks (4432) are circumferentially and uniformly distributed on the pressing sleeve (4431). The number of the abutting strips (4314) is twice the number of the pressing blocks (4432).

6. The continuous polishing device for the mobile phone back cover according to claim 4, characterized in that, The elastic portion (442) includes a plurality of spliced pieces (4421) hinged in sequence. A limiting block (4422) is arranged between adjacent two of the spliced pieces (4421). An elastic reset piece (4423) is connected between the plurality of spliced pieces (4421). The limiting block (4422) is located on the outer side surface of the elastic portion (442), and the elastic reset piece (4423) is located on the inner side surface of the elastic portion (442).

7. The continuous polishing device for the mobile phone back cover 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 formed on the seat body (21). One end of the pressing block (221) extends out of the seat body (21) and is provided with two elastic abutting pieces (222); the pressing member (23) includes a pressing block (231). First arc-shaped surfaces (2311) are provided around the top of the pressing block (231). Second arc-shaped surfaces (2211) are provided at one ends of the pressing blocks (221) located inside the seat body (21). When the pressing block (231) moves towards the bottom wall of the cavity (211), the first arc-shaped surface (2311) abuts against the second arc-shaped surface (2211) and drives the pressing block (221) to move out of the seat body (21); the contracting member (24) includes an elastic contracting belt (241). A through hole for the elastic abutting piece (222) to extend out is formed on the elastic contracting belt (241). A limiting step (2212) capable of abutting against the elastic contracting belt (241) is provided on the pressing block (221).

8. The continuous grinding device for the mobile phone back cover according to claim 7, 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 rod (232) is threadedly connected to the transmission plate (14). One end of the pressing screw rod (232) passes through the central sleeve (251) and is rotatably connected to the pressing block (231). A rotating disc (233) is arranged at the other end of the pressing screw rod (232).

9. The continuous polishing device for the mobile phone back cover according to claim 8, characterized in that, Two tightening and loosening mechanisms (5) for driving the pressing screw rod (232) to rotate are arranged on the frame body (11). In the horizontal projection, the two tightening and loosening 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 of the tightening and loosening mechanisms (5) can drive the pressing screw rod (232) to rotate and move towards the direction close to the pressing block (231). When the transmission plate (14) moves along the lower conveying surface of the conveying chain (12), the other tightening and loosening mechanism (5) can drive the pressing screw rod (232) to rotate and move away from the pressing block (231).

10. The continuous polishing device for the mobile phone back cover according to claim 1, wherein, A discharging member (6) is arranged on the frame body (11) and at the lower part of the conveying chain (12). The discharging member (6) includes connecting rods (61) oppositely arranged on both sides of the frame body (11). Discharging rods (62) are obliquely arranged on the connecting rods (61). When the transmission plate (14) moves towards the direction close to the discharging rods (62), the discharging rods (62) can dial the mobile phone back cover and make the mobile phone back cover separate from the seat body (21). A conveyor belt (63) for conveying the mobile phone back cover is arranged below the discharging rods (62).

Images