A disc separation and retrieval system for small optical disc storage devices

Abstract

The present invention discloses a disc sorting and retrieval system for a small optical disc storage device, comprising: a disc loading unit, an optical disc unit, and an optical disc read / write unit; the optical disc unit comprises a plurality of stacked chuck structures; a lifting unit of the optical disc loading unit, mounted on a bracket of the optical disc loading unit, drives the disc sorting unit to move vertically; the disc sorting unit comprises a disc sorting rotation mechanism, a target disc remover, and an upper disc sorter; driven by the disc sorting rotation mechanism, the upper disc sorter grabs the chuck structure above a designated chuck structure and separates it from the designated chuck structure; the target disc remover grabs the designated chuck structure and separates it from the lower chuck structure, and drives the grabbed chuck structure to rotate about the axis of a central hole; the optical disc read / write unit comprises a read / write unit bracket, a read / write lifting module, and a read / write optical head module; the read / write lifting module is mounted on the read / write unit bracket, and the read / write optical head module moves on the read / write lifting module. The present invention overcomes the problems of existing optical disc storage devices, such as complex structures and high manufacturing difficulty.

Description

Technical Field

[0001] The present invention relates to the field of optical storage, and in particular to a disc separation and retrieval system for a small optical disc storage device. Background Art

[0002] In order to increase storage space, the optical disc storage devices currently on the market mostly use special optical disc magazines that can hold multiple optical discs. The storage device needs to be equipped with a complex disc loading and unloading structure, which requires all optical discs to be taken out of the optical disc magazine, the designated target disc to be sorted out, and transported to the movement for reading. The structure is complex, the manufacturing is difficult, and it is prone to operational failures, which limits the development and application of optical disc storage products. Summary of the Invention

[0003] The present invention provides a disc separation and retrieval system for a small optical disc storage device, so as to overcome the problems of the existing optical disc storage device, such as complex structure, great manufacturing difficulty and easy operation failure.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] A disc separation and retrieval system for a small optical disc storage device, comprising: an optical disc loading unit, an optical disc unit, and an optical disc reading and writing unit;

[0006] The optical disc unit includes a chuck structure for fixing the optical disc, and a plurality of the chuck structures are stacked in sequence;

[0007] The optical disc loading unit includes an optical disc loading unit bracket, a lifting unit and a disc separating unit. The lifting unit is arranged on the optical disc loading unit bracket and can drive the disc separating unit to move in a vertical direction.

[0008] The disc separation unit includes a disc separation rotation mechanism, a target disc remover connected to the disc separation rotation mechanism, and an upper disc separator. Driven by the disc separation rotation mechanism, the upper disc separator can rotate into the disc removal slot on the chuck structure to grab the chuck structure above the designated chuck structure and separate it from the designated chuck structure. The target disc remover can rotate into the central hole of the chuck structure and grab the designated chuck structure to separate it from the chuck structure below the designated chuck structure. The target disc remover can drive the grabbed chuck structure to rotate around the axis of the central hole.

[0009] The optical disc read-write unit includes a read-write unit bracket, a read-write lifting module and a read-write optical head module capable of reading and writing optical discs. The read-write lifting module is arranged on the read-write unit bracket. The read-write lifting module can drive the read-write optical head module to move in the vertical direction. The read-write optical head module can move horizontally along the radial direction of the optical disc on the read-write lifting module.

[0010] Furthermore, the tray-splitting rotating mechanism includes a tray-splitting motor and a tray-splitting transmission wheel. The tray-splitting motor is fixed to the lifting unit and can drive the tray-splitting transmission wheel to rotate. The axis of the tray-splitting transmission wheel is parallel to the axis of the chuck structure.

[0011] The outer periphery of the disk separation transmission wheel is provided with a disk remover track and a disk separator track;

[0012] The tray taker track includes a tray taker horizontal sliding section, a tray taker first ascending section, a tray taker rotating section, a tray taker descending section and a tray taker second ascending section connected in sequence end to end;

[0013] The tray divider track includes a tray divider rotating section, a tray divider ascending section, and a tray divider horizontal sliding section connected in sequence end to end;

[0014] Racks are provided in the disc remover rotating section and the disc divider rotating section;

[0015] The target tray remover includes a connecting rod, one end of which is provided with a tray remover driving part, the tray remover driving part includes a tray remover sliding ear capable of sliding in the tray remover track and a tray remover rotating tooth capable of engaging with the rack of the tray remover rotating section, the tray remover rotating tooth is located between the two tray remover sliding ears;

[0016] A tray separator driving part is provided at one end of the upper tray separator, and the tray separator driving part includes a tray separator sliding ear that can slide in the tray separator track and a tray separator rotating tooth that can engage with the rack of the tray separator rotating section, and the tray separator rotating tooth is located between the two tray separator sliding ears;

[0017] The disc separation transmission wheel rotates, and the upper disc separator rotates a specified angle in the disc separator rotation section through the disc separator rotating teeth, so that the end of the upper disc separator away from the disc separator driving part enters the disc removal slot to grab the chuck structure above the specified chuck structure. At the same time, the target disc remover slides in the disc remover horizontal sliding section through the disc remover sliding ear;

[0018] The disc separation transmission wheel continues to rotate, and the upper disc separator slides and rises in the disc separator ascending section through the disc separator sliding ear, driving the chuck structure above the designated chuck structure to rise. At the same time, the target disc remover slides and rises in the disc remover ascending section.

[0019] The disc separation transmission wheel continues to rotate, and the upper disc separator keeps sliding in the horizontal sliding section of the disc separator through the disc separator sliding ear. At the same time, the target disc remover rotates a specified angle in the disc remover rotating section through the disc remover rotating gear, so that the end portion of the target disc remover away from the disc remover driving part is aligned with the center hole of the chuck structure, and then the target disc remover slides down in the disc remover descending section through the disc remover sliding ear, so that the end portion of the target disc remover away from the disc remover driving part is stuck in the center hole of the chuck structure, and then the target disc remover slides up in the second ascending section of the disc remover through the disc remover sliding ear, so as to drive the specified chuck structure to rise and separate it from the chuck structure below the specified chuck structure.

[0020] Furthermore, an arc-shaped disc dividing portion is provided at one end of the upper disc separator away from the disc separator driving portion, an arc-shaped disc dividing portion is provided on the arc-shaped disc dividing portion, a plurality of openings connected to the arc-shaped groove are evenly distributed on the inner circumference of the disc dividing portion, a disc dividing claw is installed in the disc dividing portion, one end of the disc dividing claw abuts against the side wall of the arc-shaped groove away from the center through a spring, and the other end of the disc dividing claw protrudes from the inner circumference of the disc dividing portion through the opening.

[0021] Furthermore, the target disk remover further comprises a disk removal unit and a disk motor, wherein the disk motor is fixed to an end of the connecting rod close to the disk remover drive unit, and the disk removal unit is arranged at an end of the connecting rod away from the disk remover drive unit;

[0022] The optical disc motor is connected to the disc taking part through a belt transmission structure. The disc taking part can be inserted into the central hole of the chuck structure. An internal ratchet mechanism is formed between the outer periphery of the disc taking part and the inner wall of the central hole.

[0023] Furthermore, the chuck structure includes a lower chuck and an upper chuck, the lower chuck and the upper chuck are fixed by a snap structure, and the optical disc is fixed between the lower chuck and the upper chuck;

[0024] The top of the upper chuck is provided with a pawl sliding groove connected to the center hole, the inner wall of the center hole of the upper chuck is provided with a pawl transmission groove, and a magnet is provided in the pawl transmission groove;

[0025] The disc taking part comprises a pawl spring, a disc taking pawl made of ferromagnetic material, a disc taking seat and a rotating shaft;

[0026] The disc retrieval base is provided with an annular groove, and a plurality of openings connected to the annular groove are evenly distributed on the outer circumference of the disc retrieval base. One end of the disc retrieval pawl abuts against the side wall of the annular groove near the center through a pawl spring, and the other end of the disc retrieval pawl protrudes from the outer circumference of the disc retrieval base through the opening. The end of the disc retrieval pawl protruding from the disc retrieval base can slide into the center hole through the pawl slot;

[0027] One end of the shaft is fixedly connected to the disc removal seat, and the other end of the shaft is rotatably connected to the connecting rod, and the optical disc motor can drive the shaft to rotate;

[0028] After the disc taking pawl slides into the center hole through the pawl slot, the disc taking part rotates until the disc taking pawl is engaged in the pawl transmission slot, at which time the disc taking part reverses to drive the chuck structure to rotate.

[0029] Furthermore, the read-write lifting module includes a vertical transmission module, a read-write lifting platform and a horizontal feed motor. The vertical transmission module is arranged on the read-write unit bracket, and the vertical transmission module can drive the read-write lifting platform to move in the vertical direction. The horizontal feed motor is installed at the bottom of the read-write lifting platform. The horizontal feed motor drives the optical head module platform to move horizontally relative to the read-write lifting platform through a gear rack mechanism.

[0030] The read-write optical head module includes a horizontal transmission module, an optical head module platform, an optical head frame and a read-write optical head. The horizontal transmission module is arranged on the optical head module platform. The horizontal transmission module can drive the optical head frame to move horizontally along the radial direction of the optical disc. The read-write optical head is fixed on the optical head frame.

[0031] Furthermore, the read-write lifting module further comprises a pressing rod, one end of which is provided with a rotary sleeve, and the other end of which is provided with an arc-shaped pressing portion;

[0032] The pressing portion is provided with an arc-shaped groove for mounting a pressing spring, a hole communicating with the arc-shaped groove is provided at the bottom of the pressing portion, the pressing spring is provided with a protrusion capable of protruding from the hole, the arc-shaped groove is open above, and the opening is blocked by a spring cover plate fixedly connected to the pressing portion;

[0033] The bottom of the read-write lifting platform is provided with a rotary shaft, the rotary sleeve is rotatably connected to the rotary shaft, and the outer periphery of the rotary sleeve is provided with rotating teeth;

[0034] A vertical plate is provided at the bottom of the optical head module platform, and a pressing rod transmission tooth capable of engaging with the rotating tooth is provided at one end of the vertical plate;

[0035] When the optical head module platform and the read-write lifting platform move relative to each other, the transmission teeth of the clamping rod drive the rotating teeth to rotate until the clamping part enters the disc removal slot of the chuck structure below the specified chuck structure, and the protrusion of the clamping spring abuts against the bottom surface of the disc removal slot to clamp the chuck structure below the specified chuck structure.

[0036] Furthermore, the vertical transmission module includes a transmission guide light bar and a lifting screw arranged in parallel, and the lifting screw is driven by a lifting motor;

[0037] The read-write unit bracket includes a fixed frame, the transmission guide light bar is fixedly connected to the fixed frame, the lifting screw is rotatably connected to the fixed frame, and the lifting motor is installed on the fixed frame;

[0038] The vertical transmission module also includes a transmission sleeve and a guide sleeve provided on the read-write lifting platform, wherein the transmission sleeve is connected to the lifting screw through a thread, and the guide sleeve is slidably connected to the transmission guide light bar;

[0039] The horizontal transmission module includes a light head sliding light bar and a transmission screw arranged in parallel, and the transmission screw is driven by the light head transmission motor;

[0040] The optical head sliding bar is fixedly connected to the optical head module platform, the transmission screw is rotatably connected to the optical head module platform, and the optical head transmission motor is installed on the optical head module platform;

[0041] The horizontal transmission module also includes a horizontal sleeve provided on the optical head frame, the horizontal sleeve is connected to the transmission screw through a thread, and the optical head frame is slidably connected to the optical head sliding rod.

[0042] Furthermore, a horizontal feed rack is provided at the bottom of the optical head module platform, a groove for accommodating the horizontal feed rack is provided on the read-write lifting platform, an opening is provided at the bottom of the groove, and the motor output gear of the horizontal feed motor passes through the opening and engages with the horizontal feed rack.

[0043] Furthermore, the optical disc unit further comprises an upper fixed shaft, a lower fixed shaft, a fixed plate, an optical disc shaft fixing plate and an optical disc unit side plate;

[0044] The two fixing plates and the two optical disc unit side plates form a rectangular frame with two through-holes, a plurality of the chuck structures stacked in sequence are placed in the frame, and the optical disc loading unit and the optical disc reading and writing unit are respectively arranged on both sides of the through-holes of the rectangular frame;

[0045] The optical disc shaft fixing plate is fixed to the fixing plate at the top of the frame, and a gap is left between the optical disc shaft fixing plate and the fixing plate at the top of the frame, and the gap is not less than the maximum distance between the target disc remover and the upper disc separator in the vertical direction during movement;

[0046] The upper fixed shaft is connected to the optical disc shaft fixing plate via a fixed shaft spring, one end of the upper fixed shaft passes through the optical disc shaft fixing plate and is slidably connected to the optical disc shaft fixing plate, and the other end of the upper fixed shaft can abut against the top of the chuck structure;

[0047] One end of the lower fixed shaft is fixedly connected to the fixed plate at the bottom of the frame, and the other end of the lower fixed shaft can abut against the bottom of the chuck structure.

[0048] Beneficial effects of the present invention:

[0049] Unlike traditional storage devices that require optical discs to be taken out of the optical disc magazine, sorted, and then transported to the movement for reading, the present invention discloses a disc sorting and retrieval system for small optical disc storage devices, which replaces the traditional optical disc magazine structure by fixing the optical discs with a stacked chuck structure. The disc sorting and retrieval operations are realized by synchronously driving the upper disc sorter and the target disc retrieval device through the disc sorting rotation mechanism, so that the optical disc reading and writing unit can directly read the optical disc without the need for complex actions such as loading and unloading the optical disc. The structure is simple, not only with low manufacturing difficulty, but also the simple structure can reduce failures during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0051] Figure 1 This is a schematic structural diagram of a disc separation and retrieval system for a small optical disc storage device disclosed in the present invention;

[0052] Figure 2 This is a structural schematic diagram of a disc loading unit of a disc separation and retrieval system for a small optical disc storage device disclosed in the present invention;

[0053] Figure 3 This is a schematic structural diagram of a disc separation transmission wheel for a disc separation and retrieval system of a small optical disc storage device disclosed in the present invention;

[0054] Figure 4 This is a partial structural diagram of a target disk retrieval device for a disk partitioning and retrieval system of a small optical disk storage device disclosed in the present invention. Figure 1 ;

[0055] Figure 5 This is a partial structural diagram of a target disk retrieval device for a disk partitioning and retrieval system of a small optical disk storage device disclosed in the present invention. Figure 2 ;

[0056] Figure 6 This is a schematic structural diagram of a disk loading and unloading system for a small optical disk storage device disclosed in the present invention;

[0057] Figure 7 This is a structural schematic diagram of a first connecting rod and a connecting rod baffle in a disc separation and retrieval system for a small optical disc storage device disclosed in the present invention;

[0058] Figure 8This is a structural schematic diagram of a second connecting rod and a disc motor in a disc separation and retrieval system for a small optical disc storage device disclosed in the present invention;

[0059] Figure 9 An exploded view of an optical disc unit of a disc separation and retrieval system for a small optical disc storage device disclosed in the present invention;

[0060] Figure 10 This is a schematic structural diagram of an upper chuck and a lower chuck of a disc separation and retrieval system for a small optical disc storage device disclosed in the present invention;

[0061] Figure 11 A schematic diagram of the operation of a disc retrieval pawl of a disc separation and retrieval system for a small optical disc storage device disclosed in the present invention;

[0062] Figure 12 An exploded view of an optical disc reading and writing unit of a disc partitioning and retrieval system for a small optical disc storage device disclosed in the present invention;

[0063] Figure 13 This is an exploded view of a read / write lift module of a disc separation and retrieval system for a small optical disc storage device disclosed in the present invention;

[0064] Figure 14 An exploded view of a read / write optical head module of a disc partitioning and retrieval system for a small optical disc storage device disclosed in the present invention;

[0065] Figure 15 An exploded view of a pressing rod of a disc separation and retrieval system for a small optical disc storage device disclosed in the present invention;

[0066] Figure 16 This is a schematic diagram of the operation of a compression spring for a disc separation and retrieval system of a small optical disc storage device disclosed in the present invention;

[0067] Figure 17 The present invention discloses a working diagram of a read / write optical head module for a disc partitioning and retrieval system of a small optical disc storage device. Figure 1 ;

[0068] Figure 18 The present invention discloses a working diagram of a read / write optical head module for a disc partitioning and retrieval system of a small optical disc storage device. Figure 2 ;

[0069] Figure 19 A motion trajectory diagram of a loading disc separator and a target disc remover in a disc separation and retrieval system for a small optical disc storage device disclosed in the present invention;

[0070] Figure 20The present invention discloses a disk sorting and retrieval system for a small optical disk storage device and a working diagram of a disk sorting and retrieval device for a target disk. Figure 1 ;

[0071] Figure 21 The present invention discloses a disk sorting and retrieval system for a small optical disk storage device and a working diagram of a disk sorting and retrieval device for a target disk. Figure 2 ;

[0072] Figure 22 The present invention discloses a disk sorting and retrieval system for a small optical disk storage device and a working diagram of a disk sorting and retrieval device for a target disk. Figure 3 ;

[0073] Figure 23 The present invention discloses a disk sorting and retrieval system for a small optical disk storage device and a working diagram of a disk sorting and retrieval device for a target disk. Figure 4 ;

[0074] Figure 24 The present invention discloses a disk sorting and retrieval system for a small optical disk storage device and a working diagram of a disk sorting and retrieval device for a target disk. Figure 5 .

[0075] In the figure: 5, CD loading unit; 51, CD loading unit fixing frame; 52, lifting platform; 53, disc separation motor bracket; 54, disc separation motor; 55, disc separation transmission wheel; 551, disc removal track; 552, disc removal track; 56, target disc removal device; 560, connecting rod; 561, disc removal device sliding ear; 562, disc removal device rotating gear; 563, CD motor; 564, first pulley; 565, belt; 566, second pulley; 567, ratchet spring; 568, disc removal ratchet; 569, disc removal card seat; 5 7. Upper disc separator; 571. Sliding ear of disc separator; 572. Rotating tooth of disc separator; 573. Disc separator claw; 574. Spring; 58. Lifting platform light bar; 59. Lifting platform lead screw; 591. Lead screw motor; 510. First connecting rod; 5101. Connecting rod; 511. Second connecting rod; 5111. Connecting part; 512. Baffle; 6. Optical disc unit; 61. Fixing plate; 62. Optical disc shaft fixing plate; 64. Lower fixing shaft; 65. Lower chuck; 651. Card slot; 652. Limiting buckle; 66. Optical disc; 67. Upper chuck Disc; 671, disc removal slot; 672, chuck limit pin; 673, ratchet sliding slot; 674, ratchet transmission slot; 675, buckle; 68, upper fixed shaft; 69, fixed shaft spring; 610, optical disc unit side plate; 7, optical disc read / write unit; 711, fixed frame; 712, transmission guide light bar; 713, lifting motor; 7131, lifting screw; 72, read / write lift module; 721, read / write lift; 7211, transmission sleeve; 7212, guide sleeve; 7213, rotary shaft; 722, horizontal feed motor Machine; 7221, motor output gear; 723, clamping rod; 7231, rotary sleeve; 7232, reed cover; 7233, rotating gear; 7234, clamping reed; 7235, hole; 73, read-write optical head module; 731, optical head module platform; 7311, horizontal feed rack; 7312, limit pin gear; 7313, clamping rod transmission gear; 732, optical head sliding light bar; 733, optical head transmission motor; 7331, transmission screw; 734, optical head frame; 7341, horizontal sleeve; 735, read-write optical head. DETAILED DESCRIPTION

[0076] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0077] This embodiment provides a system for separating and retrieving optical discs for a small optical disc storage device. Figure 1As shown, it includes: an optical disc loading unit 5, an optical disc unit 6 and an optical disc reading and writing unit 7;

[0078] like Figure 9 As shown, the optical disc unit 6 includes a chuck structure for fixing the optical disc 66, and a plurality of the chuck structures are stacked in sequence;

[0079] like Figure 2 As shown, the optical disc loading unit 5 includes an optical disc loading unit bracket, a lifting unit and a disc separating unit. The lifting unit is arranged on the optical disc loading unit bracket, and the lifting unit can drive the disc separating unit to move in a vertical direction.

[0080] The disc separation unit includes a disc separation rotating mechanism and a target disc remover 56 and an upper disc separator 57 connected to the disc separation rotating mechanism. Driven by the disc separation rotating mechanism, the upper disc separator 57 can rotate to the following positions: Figure 10 The target disc remover 56 can rotate into the center hole (concentric with the optical disc) of the chuck structure and remove the designated chuck structure, separating it from the chuck structure below it. The target disc remover 56 can drive the removed chuck structure to rotate around the axis of the center hole.

[0081] like Figure 12 As shown, the optical disc read-write unit 7 includes a read-write unit bracket, a read-write lifting module 72 and a read-write optical head module 73 capable of reading and writing the optical disc 66. The read-write lifting module 72 is arranged on the read-write unit bracket. The read-write lifting module 72 can drive the read-write optical head module 73 to move in the vertical direction. The read-write optical head module 73 can move horizontally along the radial direction of the optical disc 66 on the read-write lifting module 72.

[0082] Unlike traditional storage devices that require optical discs to be taken out of the optical disc magazine, sorted, and then transported to the movement for reading, the present embodiment discloses a disc sorting and retrieval system for small optical disc storage devices, which replaces the traditional optical disc magazine structure with a stacked chuck structure to fix the optical discs. The disc sorting and retrieval operations are realized by synchronously driving the upper disc sorter and the target disc retrieval device through the disc sorting rotation mechanism, so that the optical disc reading and writing unit can directly read the optical disc without the need for complex actions such as loading and unloading the optical disc. The structure is simple, not only with low manufacturing difficulty, but also the simple structure can reduce failures during operation.

[0083] In a specific embodiment, Figure 10 As shown, a chuck limiting pin 672 is provided on the top of the chuck structure, and a depression corresponding to the chuck limiting pin 672 is provided on the bottom. When multiple chuck structures are stacked, they are positioned by the chuck limiting pin 672.

[0084] In a specific embodiment, Figure 2 As shown, the disc separation rotation mechanism includes a disc separation motor 54 and a disc separation transmission wheel 55. The disc separation motor 54 is fixed to the lifting unit and can drive the disc separation transmission wheel 55 to rotate. The axis of the disc separation transmission wheel 55 is parallel to the axis of the chuck structure.

[0085] like Figure 3 As shown, the outer periphery of the disk drive wheel 55 is provided with a disk taker track 551 and a disk divider track 552. The movement tracks of the target disk taker 56 and the upper disk divider 57 on the disk drive wheel 55 are shown as follows: Figure 19 As shown, the vertical axis represents the height of the target disk taker 56 and the upper disk separator 57, and the horizontal axis represents the angle on the disk separation transmission wheel 55;

[0086] The tray taker track 551 includes tray taker horizontal sliding sections connected end to end (corresponding to Figure 19 Middle OA section), the first rising section of the disk remover (corresponding to Figure 19 Middle AB section), disc taker rotation section (corresponding to Figure 19 Middle BC section), the plate taker descending section and the plate taker second ascending section (corresponding to Figure 19 middle CF segment);

[0087] The disk separator track 552 includes disk separator rotating sections connected end to end (corresponding to Figure 19 Middle OA segment), the rising segment of the disk divider (corresponding to Figure 19 Middle AB section), horizontal sliding section of the disk divider (corresponding to Figure 19 middle CF segment);

[0088] Racks are provided in the disc remover rotating section and the disc divider rotating section;

[0089] like Figure 4 As shown, the target tray remover 56 includes a connecting rod 560, one end of which is provided with a tray remover driving unit, the tray remover driving unit including a tray remover sliding ear 561 capable of sliding within the tray remover track 551 and a tray remover rotating tooth 562 capable of engaging with the rack of the tray remover rotating section, the tray remover rotating tooth 562 being located between the two tray remover sliding ears 561;

[0090] like Figure 6 As shown, a tray separator driving portion is provided at one end of the upper tray separator 57. The tray separator driving portion includes a tray separator sliding ear 571 that can slide within the tray separator track 552 and a tray separator rotating tooth 572 that can engage with the rack of the tray separator rotating section. The tray separator rotating tooth 572 is located between the two tray separator sliding ears 571.

[0091] In this embodiment, the length of the tray separator sliding ear 571 is no greater than the depth of the tray separator track 552. The tray separator sliding ear 571 slides within the tray separator track 552 until it hits the end of the rack of the tray separator rotating section. At this time, the tray separator rotating tooth 572 approaches the rack of the tray separator rotating section and meshes with it.

[0092] The length of the tray picker sliding ear 561 is no greater than the depth of the tray picker track 551. The tray picker sliding ear 561 slides in the tray picker track 551 until it hits the end of the rack of the tray picker rotating section. At this time, the tray picker rotating tooth 562 approaches the rack of the tray picker rotating section and meshes with it.

[0093] like Figure 20 As shown, the disc separation drive wheel 55 rotates, and the upper disc separator 57 rotates a specified angle within the disc separator rotation section via the disc separator rotating teeth 572, so that the end of the upper disc separator 57 away from the disc separator driving portion enters the disc removal slot 671 to grab the chuck structure above the specified chuck structure. At the same time, the target disc remover 56 slides within the disc remover horizontal sliding section via the disc remover sliding ear 561.

[0094] like Figure 21 As shown, the disc separation transmission wheel 55 continues to rotate, and the upper disc separator 57 slides and rises in the disc separator ascending section via the disc separator sliding ear 571, driving the chuck structure above the designated chuck structure to rise. At the same time, the target disc remover 56 slides and rises in the disc remover ascending section.

[0095] like Figure 22 As shown, the disc separation transmission wheel 55 continues to rotate, and the upper disc separator 57 keeps sliding in the disc separator horizontal sliding section via the disc separator sliding ear 571. At the same time, the target disc taker 56 rotates a specified angle in the disc taker rotating section via the disc taker rotating gear 562, so that the end of the target disc taker 56 away from the disc taker driving portion is aligned with the center hole of the chuck structure, and then as shown in FIG. Figure 23 As shown, the target tray taker 56 slides down in the taker descending section through the taker sliding ear 561, so that the end of the target tray taker 56 away from the taker driving part is clamped into the center hole of the chuck structure, and then Figure 24 As shown, the target disk remover 56 slides and rises in the second rising section of the disk remover through the disk remover sliding ear 561, so as to drive the designated chuck structure to rise and separate it from the chuck structure below the designated chuck structure. After the reading and writing of the optical disk 66 is completed, it only needs to run in reverse according to the above action to complete the reset.

[0096] In a specific embodiment, Figure 2As shown, the lifting unit includes a lifting platform optical bar 58 and a lifting platform lead screw 59 (both of which are parallel to the axis of the central hole of the chuck structure) arranged in parallel, and the lifting platform lead screw 59 is driven by a lead screw motor 591;

[0097] The optical disc loading unit bracket includes an optical disc loading unit fixing frame 51, the lifting platform optical bar 58 is fixedly connected to the optical disc loading unit fixing frame 51, the lifting platform lead screw 59 is rotatably connected to the optical disc loading unit fixing frame 51, and the lead screw motor 591 is installed on the optical disc loading unit fixing frame 51;

[0098] The lifting unit further includes a lifting platform 52, wherein the lifting platform 52 is connected to the lifting platform lead screw 59 by a thread, and the lifting platform 52 is slidably connected to the lifting platform optical bar 58;

[0099] The tray separation motor 54 is fixed to the top of the lifting platform 52 through the tray separation motor bracket 53. The lifting platform lead screw 59 drives the lifting platform 52 to move up and down, and the lifting platform optical bar 58 plays a guiding role.

[0100] In a specific embodiment, Figure 2 As shown, the disk dividing unit further includes a first connecting rod 510 and a second connecting rod 511, and the first connecting rod 510 and the second connecting rod 511 are fixedly connected to the lifting platform 52 respectively;

[0101] like Figure 7 As shown, a connecting rod 5101 is provided on the first connecting rod 510. A through hole is provided on the tray separator driving portion of the upper tray separator 57 to allow the connecting rod 5101 to pass through (clearly fitted with the connecting rod 5101). The upper tray separator 57 slides and rotates on the connecting rod 5101 through the through hole in the tray separator driving portion. The bottom of the connecting rod 5101 is threaded and is threadedly connected to the baffle 512 to prevent the upper tray separator 57 from falling off the connecting rod 5101.

[0102] like Figure 8 As shown, the second connecting rod 511 is provided with a connecting portion 5111, and the connecting portion 5111 is provided with a through hole allowing the output shaft of the optical disc motor 563 to pass through (clearly matching the output shaft of the optical disc motor 563). The upper disc separator 57 slides and rotates in the through hole of the connecting portion 5111 via the output shaft of the optical disc motor 563.

[0103] By providing the first connecting rod 510 and the second connecting rod 511, the distance between the rotation center line of the upper disk separator 57 and the target disk remover 56 and the rotation center line of the disk separation transmission wheel 55 remains unchanged during their movement.

[0104] In a specific embodiment, Figure 6As shown, the upper plate separator 57 is provided with an arc-shaped plate dividing portion at one end away from the plate separator driving portion, and an arc-shaped groove is provided on the arc-shaped plate dividing portion. A plurality of openings connected to the arc-shaped groove are evenly distributed on the inner circumference of the plate dividing portion, and a plate dividing claw 573 is installed in the plate dividing portion. One end of the plate dividing claw 573 abuts against the side wall of the arc-shaped groove away from the center through a spring 574, and the other end of the plate dividing claw 573 protrudes from the inner circumference of the plate dividing portion through the opening to grab the chuck structure.

[0105] In a specific embodiment, the arc of the disc portion is greater than π and less than π (i.e., the angle is between 180 degrees and 200 degrees), so that the disc separating part can firmly grasp the chuck structure after entering the disc removal slot 671, while not affecting the disc separating part from withdrawing from the disc removal slot 671.

[0106] In a specific embodiment, Figure 5 As shown, the target disk remover 56 further includes a disk removal unit and a disk motor 563. The disk motor 563 is fixed to one end of the connecting rod 560 close to the disk remover drive unit, and the disk removal unit is provided at one end of the connecting rod 560 away from the disk remover drive unit.

[0107] The optical disc motor 563 is connected to the disc taking part through a belt transmission structure. The disc taking part can be inserted into the central hole of the chuck structure, and an internal ratchet mechanism is formed between the outer periphery of the disc taking part and the inner wall of the central hole.

[0108] In a specific embodiment, Figure 9 As shown, the chuck structure includes a lower chuck 65 and an upper chuck 67 , the lower chuck 65 and the upper chuck 67 are fixed by a snap structure, and the optical disc 66 is fixed between the lower chuck 65 and the upper chuck 67 ;

[0109] like Figure 10 As shown, the top of the upper chuck 67 is provided with a pawl sliding groove 673 connected to the center hole, and the inner wall of the center hole of the upper chuck 67 is provided with a pawl transmission groove 674, and a magnet is provided in the pawl transmission groove 674;

[0110] like Figure 5 As shown, the disk removal portion includes a pawl spring 567, a disk removal pawl 568 made of ferromagnetic material, a disk removal holder 569 and a rotating shaft 5610. The ferromagnetic material facilitates magnet adsorption, so that the disk removal pawl 568 can fit into the pawl transmission groove 674.

[0111] The disc removal card seat 569 is provided with an annular groove. A plurality of openings are evenly distributed around the periphery of the disc removal card seat 569, which are connected to the annular groove. One end of the disc removal pawl 568 abuts against the side wall of the annular groove near the center via a pawl spring 567. The other end of the disc removal pawl 568 protrudes out of the periphery of the disc removal card seat 569 through the opening. The end of the disc removal pawl 568 protruding out of the disc removal card seat 569 can slide into the center hole through the pawl slot 673.

[0112] One end of the shaft 5610 is fixedly connected to the open end of the annular groove of the disc removal seat 569, and the other end of the shaft 5610 is rotatably connected to the connecting rod 560. The optical disc motor 563 can drive the shaft 5610 to rotate.

[0113] like Figure 11 As shown, after the disc-taking pawl 568 slides into the center hole through the pawl slot 673, the disc-taking portion rotates until the disc-taking pawl 568 is engaged in the pawl transmission slot 674 (see FIG. Figure 11 The left side shows that the disc taking part rotates counterclockwise). At this time, the disc taking part is reversed to drive the chuck structure to rotate (see Figure 11 (As shown on the right, the disc is rotated clockwise).

[0114] In a specific embodiment, Figure 10 As shown, the buckle structure includes a clamping groove 651 provided on the lower chuck 65 and a buckle 675 provided on the upper chuck 67 . The lower chuck 65 and the upper chuck 67 are clamped and fixed by the clamping groove 651 and the buckle 675 .

[0115] In a specific embodiment, Figure 10 As shown, the lower chuck 65 is provided with an annular rib corresponding to the hole in the center of the optical disc 66, and the annular rib is provided with a limiting buckle 652 that can tighten the hole in the center of the optical disc 66. After the limiting buckle 652 allows the hole in the center of the optical disc 66 to be sleeved on the outer periphery of the annular rib, the optical disc 66 always remains fixed with the lower chuck 65 during the process of rotating with the chuck structure, and no relative rotation occurs.

[0116] In a specific embodiment, Figure 5 As shown, the belt drive structure includes a first pulley 564, a belt 565, and a second pulley 566. The first pulley 564 is fixedly connected to the output shaft of the optical disc motor 563, and the second pulley 566 is fixedly connected to the rotating shaft 5610. The optical disc motor 563 drives the first pulley 564 to rotate, and the first pulley 564 drives the second pulley 566 to rotate through the belt 565, thereby driving the rotating shaft 5610 to rotate.

[0117] The diameter of the first pulley 564 is larger than that of the second pulley 566. The large pulley (the first pulley 564) acts as a driving pulley to drive the small pulley (the second pulley 566) to increase the rotation speed of the disc taking part, thereby increasing the rotation speed of the optical disc 66 to increase the reading speed of the optical disc 66. At the same time, the belt drive is used to keep the optical disc motor 563 away from the disc taking part, avoiding the optical disc motor 563 and the disc taking part being concentrated at one end of the connecting rod 560, resulting in excessive bending moment and causing deformation of the connecting rod 560.

[0118] In a specific embodiment, Figure 13 As shown, the read-write lifting module 72 includes a vertical transmission module, a read-write lifting platform 721 and a horizontal feed motor 722. The vertical transmission module is arranged on the read-write unit bracket. The vertical transmission module can drive the read-write lifting platform 721 to move in the vertical direction. The horizontal feed motor 722 is installed at the bottom of the read-write lifting platform 721. The horizontal feed motor 722 drives the optical head module platform 731 to move horizontally relative to the read-write lifting platform 721 through a gear rack mechanism.

[0119] like Figure 14 As shown, the read / write optical head module 73 includes a horizontal transmission module, an optical head module platform 731, an optical head frame 734, and a read / write optical head 735. The horizontal transmission module is disposed on the optical head module platform 731. The horizontal transmission module can drive the optical head frame 734 to move horizontally along the radial direction of the optical disc 66. The read / write optical head 735 is fixed on the optical head frame 734.

[0120] The optical head module platform 731 moves horizontally relative to the read-write lifting platform 721, and the optical head frame 734 on the optical head module platform 731 is sent into the area of ​​the optical disc 66 where the recording track is engraved. The optical head frame 734 moves horizontally on the optical head module platform 731, so that the read-write optical head 735 switches between different recording tracks of the optical disc 66 along the radial direction of the optical disc 66.

[0121] In a specific embodiment, Figure 13 As shown, the read-write lifting module 72 further includes a pressing rod 723, one end of which is provided with a rotary sleeve 7231, and the other end of which is provided with an arc-shaped pressing portion;

[0122] like Figure 15 and Figure 16 As shown, the pressing portion is provided with an arc-shaped groove for mounting a pressing spring 7234, a hole 7235 communicating with the arc-shaped groove is provided at the bottom of the pressing portion, and the pressing spring 7234 is provided with a protrusion capable of protruding from the hole 7235. The top of the arc-shaped groove is open, and the opening is blocked by a spring cover 7232 fixedly connected to the pressing portion;

[0123] like Figure 13As shown, a rotary shaft 7213 is provided at the bottom of the read-write lifting platform 721, the rotary sleeve 7231 is rotatably connected to the rotary shaft 7213, and a rotating tooth 7233 is provided on the outer periphery of the rotary sleeve 7231;

[0124] like Figure 14 As shown, a vertical plate is provided at the bottom of the optical head module platform 731, and a pressing rod transmission tooth 7313 capable of engaging with the rotating tooth 7233 is provided at one end of the vertical plate;

[0125] When the optical head module platform 731 and the read-write lifting platform 721 move relative to each other (the optical head module platform 731 extends from the read-write lifting platform 721, so that the optical head module platform 731 is close to the chuck structure), the pressing rod transmission teeth 7313 drive the rotating teeth 7233 to rotate until the pressing portion enters the disk removal slot 671 of the chuck structure below the specified chuck structure, and the protrusion of the pressing spring 7234 abuts against the bottom surface of the disk removal slot 671 to press the chuck structure below the specified chuck structure, so as to ensure that the target optical disc 66 (corresponding to the specified chuck structure) does not cause the other optical discs to vibrate during the rotation process, thereby affecting the stability of the entire structure and product quality;

[0126] In this embodiment, the end of the vertical plate away from the pressing rod transmission tooth 7313 is provided with a limit pin tooth 7312 that can engage with the rotating tooth 7233;

[0127] like Figure 18 As shown, when the optical head module platform 731 extends from the read-write lifting platform 721, the rotating tooth 7233 rotates until the pressing portion enters the disc removal slot 671 of the chuck structure below the designated chuck structure, and the limiting pin tooth 7312 clamps the rotating tooth 7233 to lock the rotating sleeve 7231;

[0128] like Figure 17 As shown, when the optical head module platform 731 is retracted from the read / write lifting platform 721 and the optical head module platform 731 is away from the chuck structure, the rotating teeth 7233 are reversed, the limiting pin teeth 7312 no longer clamp the rotating teeth 7233, and the pressing portion is withdrawn from the disc removal slot 671;

[0129] In this embodiment, the protrusion of the pressing spring 7234 is provided with a rounded corner, which facilitates the protrusion to slide into the disk removal slot 671 in the horizontal direction.

[0130] In a specific embodiment, Figure 12 As shown, the vertical transmission module includes a transmission guide light bar 712 and a lifting screw 7131 (both of which are parallel to the axis of the central hole of the chuck structure) arranged in parallel, and the lifting screw 7131 is driven by a lifting motor 713;

[0131] like Figure 12As shown, the read-write unit bracket includes a fixed frame 711, the transmission guide light bar 712 is fixedly connected to the fixed frame 711, the lifting screw 7131 is rotatably connected to the fixed frame 711, and the lifting motor 713 is installed on the fixed frame 711;

[0132] like Figure 13 As shown, the vertical transmission module also includes a transmission sleeve 7211 and a guide sleeve 7212 provided on the read / write lift 721. The transmission sleeve 7211 is threadedly connected to the lifting screw 7131, and the guide sleeve 7212 is slidably connected to the transmission guide light bar 712. The lifting screw 7131 drives the read / write lift 721 to move up and down, and the transmission guide light bar 712 plays a guiding role.

[0133] like Figure 14 As shown, the horizontal transmission module includes a light head sliding light bar 732 and a transmission screw 7331 arranged in parallel, and the transmission screw 7331 is driven by the light head transmission motor 733;

[0134] The optical head sliding lever 732 is fixedly connected to the optical head module platform 731, the transmission screw 7331 is rotatably connected to the optical head module platform 731, and the optical head transmission motor 733 is installed on the optical head module platform 731;

[0135] The horizontal transmission module also includes a horizontal sleeve 7341 provided on the optical head frame 734, and the horizontal sleeve 7341 is connected to the transmission screw 7331 through a thread. The optical head frame 734 is provided with a through hole. The optical head frame 734 is slidingly connected to the optical head sliding bar 732 through the through hole on the optical head frame 734. The transmission screw 7331 drives the optical head frame 734 to reciprocate horizontally, and the optical head sliding bar 732 plays a guiding role.

[0136] In a specific embodiment, Figure 14 As shown, a horizontal feed rack 7311 is provided at the bottom of the optical head module platform 731, and a groove for accommodating the horizontal feed rack 7311 is provided on the read-write lifting platform 721. An opening is provided at the bottom of the groove, and the motor output gear 7221 of the horizontal feed motor 722 passes through the opening and engages with the horizontal feed rack 7311.

[0137] In a specific embodiment, Figure 9 As shown, the optical disc unit 6 further includes an upper fixed shaft 68, a lower fixed shaft 64, a fixing plate 61, an optical disc shaft fixing plate 62 and an optical disc unit side plate 610;

[0138] The two fixing plates 61 and the two optical disc unit side plates 610 form a rectangular frame with two through-holes. A plurality of the chuck structures stacked in sequence are placed in the frame. The optical disc loading unit 5 and the optical disc reading and writing unit 7 are respectively arranged on both sides of the rectangular frame.

[0139] The optical disc shaft fixing plate 62 is fixed to the fixing plate 61 at the top of the frame, and a gap is left between the optical disc shaft fixing plate 62 and the fixing plate 61 at the top of the frame (a cylindrical protrusion is provided on the fixing plate 61, so that a gap is left between the optical disc shaft fixing plate 62 and the fixing plate 61 after the fixing). The gap is not less than the maximum distance between the target disc remover 56 and the upper disc separator 57 in the vertical direction during movement, so that the target disc remover 56 and the upper disc separator 57 have sufficient working space to ensure normal operation;

[0140] The upper fixed shaft 68 is connected to the optical disc shaft fixing plate 62 via a fixed shaft spring 69. One end of the upper fixed shaft 68 passes through the optical disc shaft fixing plate 62 and is slidably connected to the optical disc shaft fixing plate 62. The other end of the upper fixed shaft 68 can abut against the top of the chuck structure to compress the chuck structure below.

[0141] One end of the lower fixed shaft 64 is fixedly connected to the fixed plate 61 at the bottom of the frame, and the other end of the lower fixed shaft 64 can abut against the bottom of the chuck structure to support the upper chuck structure.

[0142] In actual use, the optical disc loading unit 5, the optical disc unit 6 and the optical disc reading and writing unit 7 are installed inside the optical disc storage product. The optical disc loading unit 5 enables the optical disc reading and writing unit 7 to directly read the optical disc without the need for complex actions such as loading and unloading the optical disc. At the same time, the disc separation unit is used to separate the target optical disc (fixed with the corresponding designated chuck structure) from its upper and lower optical discs and take out the target optical disc. The optical disc rotates under the action of the optical disc motor 563. The disc separation unit makes it unnecessary for the chuck structure to reserve a gap for the read-write optical head module 73 to extend into the optical discs for reading and writing, so that the distance between the stacked optical discs can be reduced, and more optical discs can be added to the optical disc storage product of the same size, which has outstanding effects on realizing the miniaturization of the memory and the expansion of the memory capacity.

[0143] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A disc separation and retrieval system for a small optical disc storage device, characterized in that: include: An optical disc loading unit (5), an optical disc unit (6) and an optical disc reading and writing unit (7); The optical disc unit (6) comprises a chuck structure for fixing the optical disc (66), and a plurality of the chuck structures are stacked in sequence; The optical disc loading unit (5) comprises an optical disc loading unit bracket, a lifting unit and a disc separation unit, wherein the lifting unit is arranged on the optical disc loading unit bracket and can drive the disc separation unit to move in a vertical direction; The disc separation unit comprises a disc separation rotating mechanism, a target disc remover (56) and an upper disc remover (57) connected to the disc separation rotating mechanism. Driven by the disc separation rotating mechanism, the upper disc remover (57) can rotate into a disc removal slot (671) on the chuck structure to grab a chuck structure above the designated chuck structure and separate it from the designated chuck structure. The target disc remover (56) can rotate into a central hole of the chuck structure and grab a designated chuck structure to separate it from the chuck structure below the designated chuck structure. The target disc remover (56) can drive the grabbed chuck structure to rotate around the axis of the central hole. The optical disc reading and writing unit (7) comprises a reading and writing unit bracket, a reading and writing lifting module (72) and a reading and writing optical head module (73) capable of reading and writing an optical disc (66). The reading and writing lifting module (72) is arranged on the reading and writing unit bracket. The reading and writing lifting module (72) can drive the reading and writing optical head module (73) to move in a vertical direction. The reading and writing optical head module (73) can move horizontally along the radial direction of the optical disc (66) fixed on the grasped chuck structure on the reading and writing lifting module (72).

2. The disc separation and retrieval system for a small optical disc storage device according to claim 1, characterized in that: The disc separation rotating mechanism comprises a disc separation motor (54) and a disc separation transmission wheel (55), wherein the disc separation motor (54) is fixed on the lifting unit, and the disc separation motor (54) can drive the disc separation transmission wheel (55) to rotate, and the axis of the disc separation transmission wheel (55) is parallel to the axis of the chuck structure; The outer periphery of the disk separation transmission wheel (55) is provided with a disk remover track (551) and a disk separator track (552); The plate taker track (551) comprises a plate taker horizontal sliding section, a plate taker first ascending section, a plate taker rotating section, a plate taker descending section and a plate taker second ascending section, which are connected in sequence end to end; The tray divider track (552) comprises a tray divider rotating section, a tray divider ascending section, and a tray divider horizontal sliding section, which are connected in sequence end to end; Racks are provided in the disc remover rotating section and the disc divider rotating section; The target disk remover (56) includes a connecting rod (560), one end of which is provided with a disk remover driving unit, the disk remover driving unit including a disk remover sliding ear (561) capable of sliding in the disk remover track (551) and a disk remover rotating tooth (562) capable of engaging with a rack of the disk remover rotating section, the disk remover rotating tooth (562) being located between the two disk remover sliding ears (561); A disc separator driving portion is provided at one end of the upper disc separator (57), the disc separator driving portion comprising a disc separator sliding ear (571) capable of sliding within the disc separator track (552) and a disc separator rotating tooth (572) capable of engaging with a rack of the disc separator rotating section, the disc separator rotating tooth (572) being located between the two disc separator sliding ears (571); The disc separation drive wheel (55) rotates, and the upper disc separator (57) rotates a specified angle in the disc separator rotation section via the disc separator rotating teeth (572), so that the upper disc separator (57) moves away from the end of the disc separator driving portion into the disc removal slot (671) to grab the chuck structure above the specified chuck structure, and at the same time, the target disc remover (56) slides in the disc remover horizontal sliding section via the disc remover sliding ear (561); The disc separation transmission wheel (55) continues to rotate, and the upper disc separator (57) slides and rises in the disc separator ascending section via the disc separator sliding ear (571), driving the chuck structure above the designated chuck structure to rise, and at the same time, the target disc remover (56) slides and rises in the disc remover ascending section; The disc separation transmission wheel (55) continues to rotate, and the upper disc separator (57) keeps sliding in the disc separator horizontal sliding section through the disc separator sliding ear (571). At the same time, the target disc remover (56) rotates a specified angle in the disc remover rotation section through the disc remover rotating tooth (562), so that the end of the target disc remover (56) away from the disc remover driving part is aligned with the center hole of the chuck structure, and then the target disc remover (56) slides and descends in the disc remover descending section through the disc remover sliding ear (561), so that the end of the target disc remover (56) away from the disc remover driving part is clamped in the center hole of the chuck structure, and then the target disc remover (56) slides and ascends in the disc remover second ascending section through the disc remover sliding ear (561), so as to drive the designated chuck structure to rise and separate it from the chuck structure below the designated chuck structure.

3. The disc separation and retrieval system for a small optical disc storage device according to claim 2, characterized in that: An arc-shaped disc dividing portion is provided at one end of the upper disc divider (57) away from the disc divider driving portion, an arc-shaped disc dividing portion is provided on the arc-shaped disc dividing portion, a plurality of openings connected to the arc-shaped groove are evenly distributed on the inner circumference of the disc dividing portion, a disc dividing claw (573) is installed in the disc dividing portion, one end of the disc dividing claw (573) abuts against the side wall of the arc-shaped groove away from the center through a spring (574), and the other end of the disc dividing claw (573) protrudes from the inner circumference of the disc dividing portion through the opening.

4. The disc separation and retrieval system for a small optical disc storage device according to claim 2, characterized in that: The target disk remover (56) further comprises a disk removal unit and a disk motor (563), wherein the disk motor (563) is fixed to an end of the connecting rod (560) close to the disk remover drive unit, and the disk removal unit is arranged at an end of the connecting rod (560) away from the disk remover drive unit; The optical disc motor (563) is connected to the disc taking part via a belt transmission structure. The disc taking part can be inserted into the central hole of the chuck structure, and an internal ratchet mechanism is formed between the outer periphery of the disc taking part and the inner wall of the central hole.

5. The disc separation and retrieval system for a small optical disc storage device according to claim 4, characterized in that: The chuck structure comprises a lower chuck (65) and an upper chuck (67), wherein the lower chuck (65) and the upper chuck (67) are fixed by a snap-fit ​​structure, and the optical disc (66) is fixed between the lower chuck (65) and the upper chuck (67); The top of the upper chuck (67) is provided with a ratchet sliding groove (673) connected to the center hole, the inner wall of the center hole of the upper chuck (67) is provided with a ratchet transmission groove (674), and a magnet is provided in the ratchet transmission groove (674); The disc taking portion comprises a pawl spring (567), a disc taking pawl (568) made of ferromagnetic material, a disc taking holder (569), and a rotating shaft (5610); An annular groove is provided on the disc taking card seat (569), and a plurality of openings connected to the annular groove are evenly distributed on the outer periphery of the disc taking card seat (569). One end of the disc taking pawl (568) abuts against the side wall of the annular groove close to the center through the pawl spring (567), and the other end of the disc taking pawl (568) protrudes from the outer periphery of the disc taking card seat (569) through the opening. The end of the disc taking pawl (568) protruding from the disc taking card seat (569) can slide into the center hole through the pawl into the groove (673); One end of the rotating shaft (5610) is fixedly connected to the disc removal seat (569), and the other end of the rotating shaft (5610) is rotatably connected to the connecting rod (560). The optical disc motor (563) can drive the rotating shaft (5610) to rotate; After the disc-taking pawl (568) slides into the center hole through the pawl slot (673), the disc-taking portion rotates until the disc-taking pawl (568) is engaged in the pawl transmission slot (674), at which time the disc-taking portion reverses to drive the chuck structure to rotate.

6. The disc separation and retrieval system for a small optical disc storage device according to claim 1, characterized in that: The read / write lifting module (72) includes a vertical transmission module, a read / write lifting platform (721) and a horizontal feed motor (722), wherein the vertical transmission module is arranged on the read / write unit bracket, and the vertical transmission module can drive the read / write lifting platform (721) to move in a vertical direction, and the horizontal feed motor (722) is installed at the bottom of the read / write lifting platform (721), and the horizontal feed motor (722) drives the optical head module platform (731) to move horizontally relative to the read / write lifting platform (721) through a gear rack mechanism; The read / write optical head module (73) comprises a horizontal transmission module, an optical head module platform (731), an optical head frame (734) and a read / write optical head (735). The horizontal transmission module is arranged on the optical head module platform (731). The horizontal transmission module can drive the optical head frame (734) to move horizontally along the radial direction of the optical disc (66). The read / write optical head (735) is fixed on the optical head frame (734).

7. The disc separation and retrieval system for a small optical disc storage device according to claim 6, characterized in that: The read-write lifting module (72) further comprises a pressing rod (723), one end of the pressing rod (723) is provided with a rotary sleeve (7231), and the other end of the pressing rod (723) is provided with an arc-shaped pressing portion; The pressing portion is provided with an arc-shaped groove for installing a pressing spring (7234), the bottom of the pressing portion is provided with a hole connected to the arc-shaped groove, the pressing spring (7234) is provided with a protrusion capable of protruding from the hole, the top of the arc-shaped groove is open, and the opening is blocked by a spring cover plate (7232) fixedly connected to the pressing portion; A rotary shaft (7213) is provided at the bottom of the read-write lifting platform (721), the rotary sleeve (7231) is rotatably connected to the rotary shaft (7213), and rotating teeth (7233) are provided on the outer periphery of the rotary sleeve (7231); A vertical plate is provided at the bottom of the optical head module platform (731), and a pressing rod transmission tooth (7313) capable of engaging with the rotating tooth (7233) is provided at one end of the vertical plate; When the optical head module platform (731) and the read-write lifting platform (721) move relative to each other, the pressing rod transmission tooth (7313) drives the rotating tooth (7233) to rotate until the pressing part enters the disk removal slot (671) of the chuck structure below the specified chuck structure, and the protrusion of the pressing spring (7234) abuts against the bottom surface of the disk removal slot (671) to press the chuck structure below the specified chuck structure.

8. The disc separation and retrieval system for a small optical disc storage device according to claim 6, characterized in that: The vertical transmission module comprises a transmission guide light bar (712) and a lifting screw (7131) arranged in parallel, and the lifting screw (7131) is driven by a lifting motor (713); The read-write unit bracket includes a fixed frame (711), the transmission guide light bar (712) is fixedly connected to the fixed frame (711), the lifting screw (7131) is rotatably connected to the fixed frame (711), and the lifting motor (713) is installed on the fixed frame (711); The vertical transmission module further comprises a transmission sleeve (7211) and a guide sleeve (7212) provided on the read / write lifting platform (721), wherein the transmission sleeve (7211) is connected to the lifting screw (7131) via a threaded connection, and the guide sleeve (7212) is slidably connected to the transmission guide light bar (712); The horizontal transmission module comprises a light head sliding light bar (732) and a transmission screw (7331) arranged in parallel, and the transmission screw (7331) is driven by a light head transmission motor (733); The optical head sliding bar (732) is fixedly connected to the optical head module platform (731), the transmission screw (7331) is rotationally connected to the optical head module platform (731), and the optical head transmission motor (733) is installed on the optical head module platform (731); The horizontal transmission module further comprises a horizontal sleeve (7341) provided on the optical head frame (734); the horizontal sleeve (7341) is connected to the transmission screw (7331) via a threaded connection; and the optical head frame (734) is slidably connected to the optical head sliding rod (732).

9. The disc separation and retrieval system for a small optical disc storage device according to claim 6, characterized in that: A horizontal feed rack (7311) is provided at the bottom of the optical head module platform (731), a groove for accommodating the horizontal feed rack (7311) is provided on the read-write lifting platform (721), an opening is provided at the bottom of the groove, and the motor output gear (7221) of the horizontal feed motor (722) passes through the opening and engages with the horizontal feed rack (7311).

10. The disc separation and retrieval system for a small optical disc storage device according to claim 1, characterized in that: The optical disc unit (6) further comprises an upper fixed shaft (68), a lower fixed shaft (64), a fixed plate (61), an optical disc shaft fixed plate (62) and an optical disc unit side plate (610); The two fixing plates (61) and the two optical disc unit side plates (610) form a rectangular frame with two through-holes, a plurality of the chuck structures stacked in sequence are placed in the frame, and the optical disc loading unit (5) and the optical disc reading and writing unit (7) are respectively arranged on two sides of the through-holes of the rectangular frame; The optical disc shaft fixing plate (62) is fixed to the fixing plate (61) at the top of the frame, and a gap is left between the optical disc shaft fixing plate (62) and the fixing plate (61) at the top of the frame, and the gap is not less than the maximum distance between the target disc remover (56) and the upper disc separator (57) in the vertical direction during movement; The upper fixed shaft (68) is connected to the optical disc shaft fixing plate (62) via a fixed shaft spring (69); one end of the upper fixed shaft (68) passes through the optical disc shaft fixing plate (62) and is slidably connected to the optical disc shaft fixing plate (62); the other end of the upper fixed shaft (68) is capable of abutting against the top of the chuck structure; One end of the lower fixed shaft (64) is fixedly connected to the fixed plate (61) at the bottom of the frame, and the other end of the lower fixed shaft (64) can abut against the bottom of the chuck structure.

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