CN113611336B

CN113611336B - Optical disk barrel structure, optical disk access device and access method

Info

Publication number: CN113611336B
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: 2023-06-02
Anticipated expiration: 2041-07-26
Also published as: CN113611336A

Abstract

The invention provides a CD barrel structure, which comprises a cylindrical barrel body, wherein the bottom of the cylindrical barrel body is provided with a chassis, the center of the chassis is provided with a circular upper bulge for placing a CD, the circular upper bulge extends from the chassis to the top of the cylindrical barrel body, the radius of an inner ring of the circular upper bulge is larger than that of a central hole of the CD, the side wall of the cylindrical barrel body is provided with an up-down side slot, and the bottom of the side slot is not higher than the upper surface of the lowest CD placed on the chassis. In addition, the invention also provides an optical disc access device and an access method. The invention adopts a direct stacking mode to store the optical discs, does not need to arrange an optical disc fixing structure, and adopts a structure form of slotting on the side wall of the cylindrical barrel body to be matched with optical disc access equipment to access the optical discs.

Description

Optical disk barrel 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 barrel structure, an optical disk access device and an access method.

Background

In the big data age, a storage mode capable of storing mass data for a long time with low cost, convenience, reliability and reliability is needed. The optical disc is a storage medium suitable for storing data in a low-cost and long-term trusted manner, and the blue-ray optical disc can reliably store data for up to 50 years without special storage environment requirements, and the glass optical disc can store data for more than thousands of years. The optical disk is composed of millimeter-level plastic sheet and micrometer-level film coating, and has low cost of base material, and can be reduced to a low cost under the condition of mass production. Currently, the capacity of the commonly used blu-ray disc is 25GB, 50GB, 100GB, etc., and the capacity of the blu-ray disc is 500GB, which gradually enters the consumer market.

However, the capacity and performance of a single optical disc are still limited, which is far lower than that of the main stream to magnetic discs, solid state discs and magnetic tapes, so that tens of thousands of optical discs can be stored by the system only in the form of an optical disc library. The existing optical disc library mainly adopts a disc box form to store a group of optical discs, wherein, the japanese pine company, sony company and china hua-ji all adopt special disc boxes, for example, the hua-ji and the pine place 12 optical discs in a special disc box, the optical disc library taking device of purple crystal photoelectricity takes the optical discs as a unit, when taking the optical discs, the disc box is taken out from the appointed optical disc library slot position, mechanically moved to the front end optical disc driver, then the optical disc box is mechanically opened, each optical disc extracting process is respectively placed in the corresponding optical disc driver, and when placing, the optical discs in the corresponding optical disc driver are pressed into the optical disc box through the special mechanical device. The ZL6120 and ZL12240 optical disc libraries of Guangdong purple crystal information storage limited company also use 12 optical discs as a group to perform mechanical access uniformly, 12 optical discs can be stacked together, when the optical discs are taken and placed, the disc box is rotated out, 12 optical discs are taken and placed as a whole, and the optical discs are placed one by one or taken and placed by special optical disc taking device fingers. In summary, the existing disc cartridge structure increases mechanical complexity, and the disc cartridge itself occupies space, and each disc cartridge accommodates at most ten discs, so that the overall disc placement density of the disc library is reduced. In addition, these optical disc libraries have to use a set of optical discs as a data storage unit, for example, the loose and Hua Lu optical discs of 12 as a whole, and use the RAID mode, but each optical disc cannot be used alone. For long-term data storage, if individual discs in a group are lost or data is not available, user data is not recoverable even if other discs in the same group are good.

At present, the batch of optical discs are packed 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 circular cylinder is slightly larger than that of the optical discs, so that the optical discs can be placed in the circular cylinder. The base of the optical disc barrel is a disc bottom surface, and a cylindrical rod can be arranged in the middle of the bottom surface, so that when a group of optical discs can be placed in the optical disc barrel in a stacking mode, the cylindrical rod can pass through the central holes of all the optical discs, and the optical discs are convenient to fix; but this simple optical disc cartridge structure cannot be directly applied to an optical disc library. There is a need for a simple, convenient, and scalable disc placement and access device for placing hundreds of discs.

Disclosure of Invention

It is an object of the present invention to provide a disk cartridge structure as a basic container for storing optical disks in an optical disk library.

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

the utility model provides a CD barrel structure, includes the cylinder barrel, cylinder barrel bottom is equipped with the chassis, the chassis center is equipped with the protruding on the ring that is used for shelving the CD, and this ring is gone up the protruding by chassis to cylinder barrel top extension on the ring, protruding inner ring radius is greater than CD centre bore radius on the ring, offer one on the lateral wall of cylinder barrel and follow side fluting, side grooved tank bottom is not higher than the upper surface of the below CD of shelving on the chassis.

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

Further, the center of the chassis is provided with a downward concave 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 an annular upper bulge inner ring, and the annular lower bulge is concentric with the annular upper bulge inner ring and has the same radius.

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

Further, 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.

Further, the side slots are of a structure with wide upper part and narrow lower part.

Further, the annular upper bulge outer ring is provided with an annular boss extending upwards from the chassis, and the upper surface of the annular boss is lower than the height of the upper surface of the annular upper bulge.

Further, the chassis is provided with a groove formed by downwards sinking along the circumferential direction of the chassis, and a plurality of fixing screw holes for fixing the cylindrical barrel are formed in the groove.

In addition, the invention also provides an optical disc access device, which comprises a mechanical arm, a disc taking finger arranged on the mechanical arm and the optical disc barrel structure, wherein one end of the mechanical arm, provided with the disc taking finger, penetrates through a side slot of the cylindrical barrel body, the mechanical arm and the side slot are mutually perpendicular, the perpendicular projection of the disc taking finger on the mechanical arm is positioned in the center of the chassis, and the disc taking finger is provided with a sensor.

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

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

when the optical disk is stored, the mechanical arm drives the disk taking finger and the optical disk to horizontally move to the central position above the optical disk barrel structure, the step-down number is calculated according to the vertical position of the current 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 a side slot of the cylindrical barrel, and if the sensor senses that the disk taking finger cannot move downwards, the disk taking finger drops the optical disk; if the sensor does not react and moves down for a designated step number, when the sensor reaches the upper part of the existing optical disc stack, the disc taking finger is loosened, the optical disc falls to the uppermost surface of the optical disc stack freely, and the position of the uppermost optical disc in the cylinder body is updated.

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

the optical disc barrel structure provided by the invention adopts a direct stacking mode to store optical discs, an optical disc fixing structure is not required to be arranged, and a structural form of slotting is arranged on the side wall of the cylindrical barrel body at the same time so as to be used for being matched with optical disc access equipment to access the optical discs.

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

Drawings

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

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

FIG. 3 is a schematic diagram of a lower slot structure of the optical disc cartridge structure according to an embodiment of the present invention;

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

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

FIG. 6 is a schematic diagram of a process for picking up an optical disc according to an embodiment of the present invention;

fig. 7 is a schematic flow chart of storing optical discs in an embodiment of the invention.

Reference numerals illustrate: 1. a cylindrical barrel; 2. side grooving; 3. the annular upper bulge; 4. a circular boss; 5. a chassis; 6. a groove; 7. a circular lower bulge; 8. a lower groove; 9. a positioning piece; 10. a fixed screw hole; 11. an optical disc; 12. taking a disc finger; 13. a mechanical arm; 14. and a mechanical arm spindle controller.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should 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 the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like, 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 defining "a first", "a second" may include one or more such features, either explicitly or implicitly; in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

As shown in fig. 1, 2, 3 and 4, the present embodiment provides a disc barrel structure, which includes a cylindrical barrel 1, wherein the radius of the cylindrical barrel 1 is slightly larger than the radius of a stored disc, so that the storage of the disc 11 can be limited by the side wall 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 the optical disk 11, the circular upper bulge 3 extends from the chassis 5 to the top of the cylindrical barrel 1, the optical disk 11 is 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 grasp, 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 the optical disk device can be conveniently grasped and inserted into the central hole of the optical disk 11 at the lowest position to grasp the optical disk 11; the side wall of the cylindrical barrel body 1 is provided with an up-down side slot 2, the width of the side slot 2 is larger than that of the mechanical arm for taking the disc, the mechanical arm for taking the disc can move up and down in a barrier-free mode, the side slot 2 is optimized, the side slot 2 is of an upper wide structure and a lower narrow structure, the overall side view of the side slot 2 is of an inverted long trapezoid, and the bottom of the side slot 2 is not higher than the upper surface of the lowest optical disc placed on the chassis 5, so that the mechanical arm can grasp the lowest optical disc in the cylindrical barrel body 1. The optical disc barrel provided by the embodiment has a simple structure, adopts a direct stacking mode to store optical discs, does not need to arrange an optical disc fixing structure, and has a structural form of slotting at the side wall of the cylindrical barrel body so as to be used for being matched with an optical disc access device 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 cylindrical drum 1, so as to be fixedly mounted when the optical disc cartridge structure is placed. The center of the chassis 5 is provided with a downward concave annular lower bulge 7, and the annular lower bulge 7 can be matched with a corresponding structure on the base to play a limiting role when the optical disc barrel structure is arranged 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, and the circular lower protrusion 7 is concentric with the inner ring of the circular upper protrusion 3 and has the same radius, i.e. the circular lower protrusion 7 can be formed by downwardly extending the wall of the circular upper protrusion 3.

For the fixing manner of the optical disc barrel 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 chassis 5, and the fixing rod structure on the base may be clamped by the lower slots 8, so that the optical disc barrel structure is fixedly mounted on the base. In other embodiments, as shown in fig. 4, a plurality of positioning members 9 for fixing the cylindrical drum may be disposed on the outer surface of the bottom of the sidewall of the cylindrical drum 1, and the positioning members 9 may be engaged with a clamping groove structure on the base to limit and fix, and meanwhile, the positioning members 9 may also play a role in enhancing the bottom strength of the optical disc drum structure.

Further, as shown in fig. 4, the chassis 5 is provided with a recess 6 formed by recessing downwards along the circumferential direction thereof, and a plurality of fixing screw holes 10 for fixing the cylindrical drum 1 are provided in the recess 6, and the optical disc drum structure is further fixed through the fixing screw holes 10, so that the optical disc drum structure is fixed at a fixed position on the base.

Preferably, as shown in fig. 2, the outer ring of the annular upper protrusion 3 is provided with an annular boss 4 extending upwards from the chassis 5, and the upper surface of the annular boss 4 is lower than the height of the 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 that the optical disc 11 can be conveniently grasped.

As shown in fig. 5, this embodiment further provides an optical disc access device, including a mechanical arm 13, a disc taking finger 12 disposed on the mechanical arm 13, and the above optical disc barrel structure, where one end of the mechanical arm 13 on which the disc taking finger 13 is mounted passes through the side slot 2 of the cylindrical barrel 1, and the mechanical arm 13 is perpendicular to the side slot 2, and the other end of the mechanical arm 13 is connected with a mechanical arm spindle controller 14, the mechanical arm spindle controller 14 and the above optical disc barrel structure are both mounted on a base, the perpendicular projection of the disc taking finger 12 on the mechanical arm 13 is located in the center of the chassis 5, and the disc taking finger 12 is provided with a sensor; the mechanical arm 13 can be controlled to move up and down along the side slot 2 of the cylindrical barrel 1 by the mechanical arm main shaft controller 14, and the optical disc 11 is stored or grasped in the cylindrical barrel 1 by the disc picking 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 taking the optical disc 11, the mechanical arm 13 drives the disc taking finger 12 to horizontally move to the center position above the optical disc barrel structure, the number of steps is calculated according to the vertical position of the current disc taking finger 12 and the position of the uppermost optical disc 11 in the current 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 disc cannot be moved downwards in the moving process, the disc taking finger 12 grabs the disc; if the sensor does not react, continuing to move downwards step by step until the sensor senses that the disc taking finger 12 is used for taking the optical disc 11; then updating the position of the uppermost optical disk 11 in the cylindrical barrel 1, combining the initial vertical position of the mechanical arm 13 in the algorithm, calculating the upward moving distance, driving the disk taking finger 12 and the grabbed optical disk 11 to move upward by the mechanical arm 13, enabling the end point to be higher than the height of the cylindrical barrel 1, and horizontally moving to the next position.

As shown in fig. 7, when the optical disc 11 is stored, the mechanical arm 13 drives the disc taking finger 12 and the optical disc 11 to horizontally move to the center position above the optical disc barrel structure, the number of steps is calculated according to the vertical position of the current disc taking finger 12 and the position of the uppermost optical disc 11 in the current 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 be moved downwards, the disc taking finger 12 drops the optical disc 11; if the sensor does not react and moves down for a designated step number, when the sensor reaches the upper part of the existing optical disc stack, the disc taking finger 12 is loosened, the optical disc 11 falls freely to the uppermost part of the optical disc stack, and the position of the uppermost optical disc 11 in the cylindrical barrel 1 is updated.

The foregoing examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and all designs that are the same or similar to the present invention are within the scope of the present invention.

Claims

1. An optical disc access apparatus, characterized in that: the disc taking device comprises a mechanical arm, a disc taking finger and a disc barrel structure, wherein the disc taking finger is arranged on the mechanical arm, the disc barrel structure comprises a cylindrical barrel body, a chassis is arranged at the bottom of the cylindrical barrel body, a circular upper bulge for placing a disc is arranged in the center of the chassis, the circular upper bulge extends from the chassis to the top of the cylindrical barrel body, the radius of an inner ring of the circular upper bulge is larger than that of a central hole of the disc, an up-to-down side slot is formed in the side wall of the cylindrical barrel body, and the bottom of the side slot is not higher than the upper surface of the lowest disc placed on the chassis; one end of the mechanical arm, which is provided with a tray taking finger, penetrates through the side slot of the cylindrical barrel body, the mechanical arm and the side slot are mutually perpendicular, the tray taking finger vertical projection on the mechanical arm is positioned at the center of the chassis, and the tray taking finger is provided with a sensor.

2. An optical disc access apparatus as defined in claim 1, wherein: the chassis is arranged at a certain distance from the bottom edge of the cylindrical barrel.

3. An optical disc access apparatus as claimed in claim 2, wherein: the center of chassis is equipped with bellied under the annular of undercut, bellied lower border under the annular flushes with the lower surface of cylinder barrel lateral wall under the annular, bellied under the annular communicates with each other with bellied inner ring on the annular, bellied under the annular is concentric and the radius equals with bellied inner ring on the annular.

4. An optical disc access apparatus as claimed in claim 2, wherein: one or more lower grooves are formed in the side wall of the cylindrical barrel below the chassis.

5. An optical disc access apparatus as defined in 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. An optical disc access apparatus as defined in claim 1, wherein: the side slotting is of a structure with wide upper part and narrow lower part.

7. An optical disc access apparatus as defined in claim 1, wherein: the upper surface of the annular boss is lower than the height of the upper surface of the annular upper boss.

8. An optical disc access apparatus as defined in claim 1, wherein: the chassis is provided with a groove formed by downwards sinking along the circumferential direction of the chassis, and a plurality of fixing screw holes for fixing the cylindrical barrel are formed in the groove.

9. An optical disc access method employing the optical disc access apparatus according to any one of claims 1 to 8, comprising the steps of: