CN113611336A

CN113611336A - Optical disk bucket structure, optical disk access device and access method

Info

Publication number: CN113611336A
Application number: CN202110842990.3A
Authority: CN
Inventors: 曹强; 姚杰
Original assignee: Wuhan Opstor Technology Ltd
Current assignee: Wuhan Opstor Technology Ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2021-11-05
Anticipated expiration: 2041-07-26
Also published as: CN113611336B

Abstract

The invention provides a compact disc barrel structure which comprises a cylindrical barrel body, wherein a base plate is arranged at the bottom of the cylindrical barrel body, a circular ring-shaped upper bulge for placing a compact disc is arranged in the center of the base plate, the circular ring-shaped upper bulge extends from the base plate to the top of the cylindrical barrel body, the radius of an inner ring of the circular ring-shaped upper bulge is larger than the radius of a central hole of the compact disc, a side groove from top to bottom is formed in the side wall of the cylindrical barrel body, and the bottom of the side groove is not higher than the upper surface of the lowest compact disc placed on the base plate. In addition, the invention also provides an optical disc access device and an access method. The invention adopts direct stacking mode to store CD without setting CD fixing structure, and designs side groove structure on the side wall of the cylinder to match CD access device to access CD.

Description

Optical disk bucket structure, optical disk access device and access method

Technical Field

The invention belongs to the technical field of computer data storage, and particularly relates to an optical disk bucket structure, an optical disk access device and an access method.

Background

In the big data era, a storage mode which can store mass data for a long time with low cost, convenience, reliability and credibility is needed. The optical disc is a storage medium suitable for storing data in a cheap and reliable manner for a long time, the blue-ray disc can reliably store the data for 50 years under the condition of not requiring special storage environment, and the glass optical disc can store the data for more than thousands of years. The optical disc is composed of a millimeter-grade plastic sheet and a micron-grade film coating, and the cost of the base material is low, so that the cost of the optical disc can be reduced in the case of mass production. Currently, the capacity of the commonly used blu-ray disc is 25GB, 50GB, 100GB, etc., and the blu-ray disc with the capacity of 500GB is also gradually entering the consumer market.

However, the capacity and performance of a single optical disc are still limited, which is far lower than that of the mainstream of magnetic discs, solid state discs and magnetic tapes, so that tens of thousands of optical discs can be saved through the system only in the form of an optical disc library. The existing optical disk library mainly adopts a disk box form to store a group of optical disks, wherein, Japan Song corporation, Sony corporation, China Hua recording group all adopt a special disk box form, for example, 12 optical disks are placed in a special disk box by Hua recording and Song writing, and the disk taking device of the purple crystal photoelectric optical disk library takes the disk box as a unit to access the optical disks. The optical disc libraries of ZL6120 and ZL12240 of Guangdong purple crystal information storage Co., Ltd also use 12 optical discs as a group for unified mechanical access, 12 optical discs can be stacked together, when the optical discs are taken and placed, the disc box is rotated out, the 12 discs are taken and placed as a whole, and the optical discs are placed one by one or taken and placed by fingers of a special optical disc taking device. In short, the existing magazine structure increases mechanical complexity, and the magazines themselves occupy space, and each magazine can accommodate a maximum of more than ten optical discs, thereby reducing the density of the entire optical disc magazine. In addition, these optical disc libraries have to use a group of optical discs as data storage units, for example, 12 optical discs as a whole, using RAID mode for loose and embossed discs, but each optical disc cannot be used individually. For long-term data storage, if a single disc is lost or data is not available in a group of discs, the user data is not recoverable even though the other discs in the same group are good.

At present, the optical discs are purchased in batches and packaged in an optical disc barrel mode, the whole optical disc barrel is a cylindrical plastic barrel, the horizontal section of the cylinder is a circle, and the radius of the cylinder is slightly larger than that of the optical discs, so that the optical discs can be placed in the cylinder. The base of the optical disk barrel is a disk bottom surface, and a cylindrical rod can be arranged in the middle of the bottom surface, so that when a group of optical disks can be placed in the optical disk barrel in a stacking mode, the cylindrical rod can penetrate through central holes of all the optical disks, and the optical disks are convenient to fix; but this simple structure of the disc cartridge cannot be directly applied to the disc library. Therefore, a simple, convenient and expandable optical disc placing and accessing device for placing hundreds of optical discs is needed.

Disclosure of Invention

One of the objectives of the present invention is to provide a disc cartridge structure as a basic container for storing discs in a disc library.

In order to achieve the purpose, the invention adopts the following technical scheme:

a disc barrel structure comprises a cylindrical barrel body, wherein a base plate is arranged at the bottom of the cylindrical barrel body, a circular ring-shaped upper bulge for placing a disc is arranged in the center of the base plate and extends from the base plate to the top of the cylindrical barrel body, the radius of an inner ring of the circular ring-shaped upper bulge is larger than the radius of a central hole of the disc, a side groove from top to bottom is formed in the side wall of the cylindrical barrel body, and the bottom of the side groove is not higher than the upper surface of the lowermost disc placed on the base plate.

Further, the chassis is arranged at a certain distance from the edge of the bottom of the cylindrical barrel.

Furthermore, a downward sunken circular lower bulge is arranged at the center of the base plate, the lower edge of the circular lower bulge is flush with the lower surface of the side wall of the cylindrical barrel, the circular lower bulge is communicated with the circular upper bulge inner ring, and the circular lower bulge and the circular upper bulge inner ring are concentric and have the same radius.

Furthermore, one or more lower slots are formed in the side wall of the cylindrical barrel below the chassis.

Furthermore, a plurality of positioning pieces for fixing the cylindrical barrel body are arranged on the outer surface of the bottom of the side wall of the cylindrical barrel body.

Furthermore, the side slot is of a structure with a wide upper part and a narrow lower part.

Furthermore, the outer ring of the circular upper bulge is provided with a circular boss which extends upwards from the chassis, and the upper surface of the circular boss is lower than the height of the upper surface of the circular upper bulge.

Further, be equipped with the recess of undercut formation along its circumference on the chassis, be equipped with the fixed screw hole that a plurality of is used for fixed cylinder barrel in the recess.

In addition, the invention also provides an optical disc storing and taking device which comprises a mechanical arm, a disc taking finger and the optical disc barrel structure, wherein the disc taking finger is arranged on the mechanical arm, one end of the disc taking finger, which is arranged on the mechanical arm, penetrates through the side opening groove of the cylindrical barrel, the mechanical arm and the side opening groove are mutually and vertically arranged, the vertical projection of the disc taking finger on the mechanical arm is positioned in the center of the chassis, and a sensor is arranged on the disc taking finger.

The invention also provides an optical disc access method adopting the optical disc access device, which comprises the following processes:

when the optical disk is taken, the mechanical arm drives a disk taking finger to horizontally move to the central position above the optical disk barrel structure, the downward moving step number is calculated according to the current vertical position of the disk taking finger and the position of the uppermost optical disk in the current cylindrical barrel, then the mechanical arm moves from top to bottom along the side groove of the cylindrical barrel, and if the sensor senses that the optical disk cannot move downwards in the moving process, the disk taking finger grabs the disk; if the optical disk moves in place and the sensor does not respond, the optical disk continues to move downwards step by step until the sensor senses that the optical disk is grabbed by the disk taking finger; then updating the position of the uppermost optical disc in the cylindrical barrel, calculating the upward moving distance by combining the initial vertical position of the mechanical arm in the algorithm, driving the disc taking finger and the grabbed optical disc to move upward by the mechanical arm, and horizontally moving the optical disc to the next position, wherein the end point is higher than the height of the cylindrical barrel;

when storing the CD, the mechanical arm drives the disk taking finger and the CD to move horizontally to the center position above the CD barrel structure, the downward moving step number is calculated according to the current vertical position of the disk taking finger and the current position of the topmost CD in the cylindrical barrel, then the mechanical arm moves from top to bottom along the side groove of the cylindrical barrel, and if the sensor senses that the CD cannot move downward, the disk taking finger puts down the CD; if the sensor does not respond, and moves downwards for a specified number of steps, when the optical disk reaches the upper part of the existing optical disk stack, the disk taking finger is relaxed, the optical disk falls to the uppermost part of the optical disk stack freely, and the position of the uppermost optical disk in the cylindrical barrel is updated.

Compared with the prior art, the invention has the beneficial effects that:

the optical disk bucket structure provided by the invention stores optical disks in a direct stacking mode without arranging an optical disk fixing structure, and simultaneously designs a structural form of side grooves on the side wall of the cylindrical barrel body to be used for being matched with optical disk access equipment to access the optical disks.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of a disc cartridge according to the present invention;

FIG. 2 is a schematic cross-sectional view of a disc cartridge structure according to the present invention;

FIG. 3 is a schematic view of a lower open-trough structure of an optical disc cartridge structure according to an embodiment of the present invention;

FIG. 4 is a top view of a positioning member of the optical disc cartridge structure according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an optical disc accessing apparatus according to the present invention;

FIG. 6 is a flow chart of an optical pick-up disc according to an embodiment of the present invention;

FIG. 7 is a flowchart illustrating an embodiment of storing an optical disc.

Description of reference numerals: 1. a cylindrical barrel; 2. side grooving; 3. the circular ring is convex upwards; 4. a circular boss; 5. a chassis; 6. a groove; 7. a circular lower bulge; 8. lower grooving; 9. a positioning member; 10. fixing screw holes; 11. an optical disc; 12. taking a plate finger; 13. a mechanical arm; 14. arm main shaft controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the present embodiment provides an optical disc cartridge structure, which includes a cylindrical barrel 1, wherein a radius of the cylindrical barrel 1 is slightly larger than a radius of storing an optical disc, so that the optical disc 11 can be limited by a sidewall of the cylindrical barrel 1; the bottom of the cylindrical barrel 1 is provided with a chassis 5, the center of the chassis 5 is provided with a circular upper bulge 3 for placing an optical disk 11, the circular upper bulge 3 extends from the chassis 5 to the top of the cylindrical barrel 1, the optical disks 11 are placed in the cylindrical barrel 1 in a vertical stacking mode, a certain distance is reserved between the optical disk 11 positioned at the lowest position and the chassis 5 through the circular upper bulge 3, the optical disk 11 is convenient to grab, meanwhile, the radius of the inner ring of the circular upper bulge 3 is larger than the radius of the central hole of the optical disk 11, and a disk grabbing device can be inserted into the central hole of the optical disk at the lowest position to grab the optical disk 11 conveniently; the side wall of the cylindrical barrel body 1 is provided with an up-to-down side groove 2, the width of the side groove 2 is larger than that of the mechanical arm for taking a disc, so that the mechanical arm for taking a disc can move up and down without obstacles, the side groove 2 is optimally of a structure with a wide upper part and a narrow lower part, the whole side view of the side groove is in an inverted long trapezoid shape, and the groove bottom of the side groove 2 is not higher than the upper surface of the lowest compact disc placed on the chassis 5, so that the mechanical arm can grab the lowest compact disc in the cylindrical barrel body 1 when moving. The optical disc bucket provided by the embodiment has a simple structure, adopts a direct stacking mode to store optical discs, does not need to be provided with an optical disc fixing structure, and simultaneously designs a structural form with a side groove on the side wall of the cylindrical barrel body so as to be used for being matched with optical disc access equipment to access the optical discs.

Preferably, as shown in fig. 2, the chassis 5 is arranged at a distance from the bottom edge of the cylinder 1 for a fixed mounting of the disc bucket structure when placed. A downward sunken annular lower bulge 7 is arranged in the center of the chassis 5, and the annular lower bulge 7 can be matched with a corresponding structure on the base to play a role in limiting when the optical disc barrel structure is mounted on the base; specifically, the lower edge of the circular lower protrusion 7 is flush with the lower surface of the side wall of the cylindrical barrel 1, the circular lower protrusion 7 is communicated with the inner ring of the circular upper protrusion 3, the circular lower protrusion 7 is concentric with the inner ring of the circular upper protrusion 3, and the radius of the circular lower protrusion 7 is equal to that of the inner ring of the circular upper protrusion 3, that is, the circular lower protrusion 7 can be formed by extending the wall of the circular upper protrusion 3 downwards.

As to the fixing manner of the optical disc cartridge structure when being mounted on the base in this embodiment, in some embodiments, as shown in fig. 3, one or more lower slots 8 may be formed on the side wall of the cylindrical barrel below the base 5, and the fixing rod structure on the base can be clamped through the lower slots 8, so as to fixedly mount the optical disc cartridge structure on the base. In other embodiments, as shown in fig. 4, a plurality of positioning members 9 for fixing the cylindrical barrel may be disposed on the outer surface of the bottom of the side wall of the cylindrical barrel 1, the positioning members 9 may be matched with the slot-like structures on the base for limiting and fixing, and the positioning members 9 may also play a role in enhancing the bottom strength of the optical disc cartridge structure.

Further, as shown in fig. 4, a groove 6 formed by downward depressions is formed in the chassis 5 along the circumferential direction of the chassis, a plurality of fixing screw holes 10 for fixing the cylindrical barrel 1 are formed in the groove 6, and the optical barrel structure is further fixed through the fixing screw holes 10 so as to be fixed at a fixed position on the base.

Preferably, as shown in fig. 2, an annular boss 4 extending upward from the chassis 5 is disposed on an outer ring of the annular upper protrusion 3, and an upper surface of the annular boss 4 is lower than an upper surface of the annular upper protrusion 3, that is, the annular boss 4 and the annular upper protrusion 3 form a step structure, so as to facilitate the grabbing of the optical disc 11.

As shown in fig. 5, this embodiment further provides an optical disc accessing device, which includes a mechanical arm 13, a disc fetching finger 12 disposed on the mechanical arm 13, and the optical disc cartridge structure, where one end of the mechanical arm 13, on which the disc fetching finger 13 is mounted, passes through the side open slot 2 of the cylindrical barrel 1, the mechanical arm 13 and the side open slot 2 are arranged perpendicular to each other, the other end of the mechanical arm 13 is connected to a mechanical arm spindle controller 14, the mechanical arm spindle controller 14 and the optical disc cartridge structure are both mounted on a base, a vertical projection of the disc fetching finger 12 on the mechanical arm 13 is located at the center of the chassis 5, and a sensor is disposed on the disc fetching finger 12; the mechanical arm 13 can be controlled by the mechanical arm spindle controller 14 to move up and down along the side open slot 2 of the cylindrical barrel 1, and the optical disk 11 can be stored or grabbed in the cylindrical barrel 1 by the disk taking finger 12.

The specific process of accessing the optical disc by adopting the optical disc access device is as follows:

as shown in fig. 6, when a disc 11 is taken, the mechanical arm 13 drives the disc taking finger 12 to horizontally move to the central position above the disc barrel structure, the number of downward moving steps is calculated according to the current vertical position of the disc taking finger 12 and the current position of the uppermost disc 11 in the cylindrical barrel 1, then the mechanical arm 13 moves from top to bottom along the side open slot 2 of the cylindrical barrel 1, and if the sensor senses that the disc cannot move downward in the moving process, the disc taking finger 12 grabs the disc; if the optical disk moves in place and the sensor does not respond, the optical disk continues to move downwards step by step until the sensor senses that the optical disk 11 is grabbed by the disk taking finger 12; and then updating the position of the topmost optical disc 11 in the cylindrical barrel 1, calculating the upward moving distance by combining the initial vertical position of the mechanical arm 13 in the algorithm, driving the disc taking finger 12 and the grabbed optical disc 11 to move upward by the mechanical arm 13, and horizontally moving to the next position, wherein the terminal point is higher than the height of the cylindrical barrel 1.

As shown in fig. 7, when storing the optical disc 11, the mechanical arm 13 drives the disc-taking finger 12 and the optical disc 11 to move horizontally to the center position above the optical disc cartridge structure, the number of downward moving steps is calculated according to the current vertical position of the disc-taking finger 12 and the current position of the uppermost optical disc 11 in the cylindrical barrel 1, then the mechanical arm 13 moves from top to bottom along the side slot 2 of the cylindrical barrel 1, and if the sensor senses that the optical disc 11 cannot move downward, the disc-taking finger 12 puts down the optical disc 11; if the sensor does not respond and moves downwards for a specified number of steps, and then reaches the upper part of the existing optical disk stack, the disk taking finger 12 is relaxed, the optical disk 11 falls on the uppermost surface of the optical disk stack freely, and the position of the uppermost optical disk 11 in the cylindrical barrel 1 is updated.

The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.

Claims

1. A disc cartridge structure, characterized in that: the disc storage device comprises a cylindrical barrel, wherein a base plate is arranged at the bottom of the cylindrical barrel, a circular upper protrusion for placing a disc is arranged in the center of the base plate, the circular upper protrusion extends from the base plate to the top of the cylindrical barrel, the radius of an inner ring of the circular upper protrusion is larger than that of a central hole of the disc, a side groove from top to bottom is formed in the side wall of the cylindrical barrel, and the bottom of the side groove is not higher than the upper surface of the lowermost disc placed on the base plate.

2. A disc cartridge structure according to claim 1, wherein: the chassis is arranged at a certain distance from the edge of the bottom of the cylindrical barrel.

3. A disc cartridge structure according to claim 2, wherein: the center of the base plate is provided with a downward sunken annular lower bulge, the lower edge of the annular lower bulge is flush with the lower surface of the side wall of the cylindrical barrel, the annular lower bulge is communicated with the annular upper bulge inner ring, and the annular lower bulge and the annular upper bulge inner ring are concentric and have the same radius.

4. A disc cartridge structure according to claim 2, wherein: one or more lower slots are arranged on the side wall of the cylindrical barrel below the chassis.

5. A disc cartridge structure according to claim 1, wherein: the outer surface of the bottom of the side wall of the cylindrical barrel is provided with a plurality of positioning pieces for fixing the cylindrical barrel.

6. A disc cartridge structure according to claim 1, wherein: the side open groove is of a structure with a wide upper part and a narrow lower part.

7. A disc cartridge structure according to claim 1, wherein: the outer ring of the circular upper bulge is provided with a circular boss which extends upwards from the chassis, and the upper surface of the circular boss is lower than the height of the upper surface of the circular upper bulge.

8. A disc cartridge structure according to claim 1, wherein: the chassis is provided with a groove formed by downward depression along the circumferential direction of the chassis, and a plurality of fixing screw holes for fixing the cylindrical barrel are arranged in the groove.

9. An optical disc accessing apparatus, comprising: the optical disk cartridge comprises a mechanical arm, a disk taking finger arranged on the mechanical arm and the optical disk cartridge structure as claimed in any one of claims 1 to 8, wherein one end of the mechanical arm, on which the disk taking finger is arranged, penetrates through a side opening groove of a cylindrical barrel, the mechanical arm and the side opening groove are arranged perpendicularly to each other, the vertical projection of the disk taking finger on the mechanical arm is located in the center of a chassis, and a sensor is arranged on the disk taking finger.

10. An optical disc accessing method using the optical disc accessing apparatus according to claim 9, comprising the steps of: