CN114495992B

CN114495992B - Disc drawer and optical disc library with same

Info

Publication number: CN114495992B
Application number: CN202011158937.3A
Authority: CN
Inventors: 朱明�; 陈黎明; 邵征宇; 许长江; 徐宏
Original assignee: Suzhou Netzon Information Storage Technology Co Ltd
Current assignee: Suzhou Netzon Information Storage Technology Co Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2024-05-28
Anticipated expiration: 2040-10-26
Also published as: CN114495992A

Abstract

The invention provides a disc extractor and an optical disc library with the same. The disc extractor comprises: a housing having two sets of apertures arranged in spaced apart relation, each set of apertures comprising two apertures located on opposite sides of the housing and arranged in opposition; two hooks, each hook being arranged to be operable or controlled such that one end thereof moves from a protruding state protruding out of one of the set of apertures to a retracted state retracted into the housing, while the other end moves from a retracted state retracted into the housing to a protruding state protruding out of the other of the set of apertures; wherein, two ends of two trip that are in the same side of casing are to protruding extension state or shrink state motion simultaneously. When the disc drawer is unlocked, pulled out or pushed in, one end of the hook on one side of the shell protrudes out to perform the operation, and the other end of the hook on the other side of the shell is contracted in the shell, so that the disc box in the opposite disc box bin cannot be interfered.

Description

Disc drawer and optical disc library with same

Technical Field

The invention relates to the technical field of data storage, in particular to a disc extractor and an optical disc library with the same.

Background

The optical disc cartridge is a basic unit of a modern optical disc library, and a plurality of optical discs are usually accommodated in the optical disc cartridge, and the optical disc cartridge is in a closed and locked state at ordinary times. When the optical disc in the optical disc cartridge is required to be operated, the disc extractor on the optical disc cartridge manipulator is responsible for unlocking the optical disc cartridge and extracting the optical disc cartridge to the position where the disc extractor on the optical disc cartridge manipulator can vertically grasp the optical disc up and down. When the operation is completed, the drawer is also responsible for pushing the disc cartridge into the locked and closed positions. In order to increase the placement density of the disc cartridges in the disc library, the disc cartridges are typically placed in a disc cartridge bay disposed opposite to the horizontal plane. The robot arm of the optical disc library moves in the front-rear horizontal and vertical directions in the space where the horizontal surfaces are placed face-to-face so that each optical disc cartridge can be operated by the disc extractor and the disc gripper on the robot arm. Due to the width limitation of the modern standard 19 inch cabinet, after the optical disc cartridge is arranged opposite to the horizontal plane, the space left for the optical disc library manipulator to be positioned between the two optical disc cartridges is limited.

As shown in fig. 1, the robot is located in the space between two magazine bays 11 arranged face to face, and the drawer 10 is required to perform the bi-directional unlocking and drawer actions due to the operation of the face to face magazines 8. The conventional disc drawer 10 is provided with claws on both sides, as shown in fig. 2, which function to unlock an inner cartridge that simultaneously withdraws or pushes in the disc cartridge. Due to the space limitation of the manipulator, the claw 101 of the drawer 10 has to penetrate into the unlocking hole of the opposite disc cartridge 8 so as to avoid the necessary space, so that the inner cartridge of the disc cartridge 8 can be completely withdrawn. However, this configuration has the obvious disadvantage of increasing the difficulty of the drawer calibration, not being easy to implement, and in most cases requiring manual calibration by experience, and at the same time, this mechanical limitation also reduces the overall reliability of the manipulator.

Disclosure of Invention

The invention aims to solve the technical problem that the clamping claw of the disc extractor needs to penetrate into the unlocking hole of the opposite disc cartridge so as to increase the difficulty of disc extraction calibration in the prior art.

It is a further object of the present invention to improve the overall reliability of a robot with reduced difficulty in drawer calibration.

In particular, the present invention provides a disc extractor comprising:

a housing having two sets of apertures arranged in spaced apart relation, each set of apertures comprising two apertures located on opposite sides of the housing and arranged in opposite relation;

Two hooks, each hook being arranged to be operable or controlled such that one end thereof moves from a protruding state protruding out of one of the aperture sets to a retracted state retracted into the housing, while the other end moves from a retracted state retracted into the housing to a protruding state protruding out of the other of the aperture sets;

wherein, two ends of two trip are in the same side of casing simultaneously to protruding the state or the shrink state motion.

Optionally, two limiting notches corresponding to the two orifice groups are formed in the bottom surface of the shell;

the two clamping hooks are respectively and movably arranged in the two limiting notch, and the clamping hooks are arranged to move on a plane perpendicular to the length direction of the shell under the limiting of the limiting notch.

Optionally, two ends of each hook are bent towards the center of the shell to form a claw hook, and the claw hook is used for being matched with the optical disc tray to unlock the optical disc tray.

Optionally, the disc extractor further comprises:

a driving mechanism for outputting a driving force;

the transmission module is arranged in the shell and driven by the driving mechanism, and is connected with the clamping hook to drive the clamping hook to move.

Optionally, a plurality of engaging teeth are formed on a side of the hook facing the center of the housing, and the transmission module includes:

the driving toothed plate is arranged between the two clamping hooks and driven by the driving mechanism, and racks are arranged at two ends of the driving toothed plate;

two transfer gears, wherein any transfer gear is respectively meshed with the rack at one end of the driving toothed plate adjacent to the transfer gear and the combination tooth of one clamping hook;

The driving toothed plate is arranged to drive the two transfer gears to rotate simultaneously along opposite directions, so that two ends of the two clamping hooks, which are positioned on the same side face of the shell, are driven to move simultaneously towards the protruding state or the shrinking state.

Optionally, the driving toothed plate is configured to reciprocate along the length direction of the housing under the driving of the driving mechanism.

Optionally, the driving mechanism comprises a driving motor, a screw rod and a screw rod nut, and the screw rod nut is fixedly arranged on the driving toothed plate;

The driving motor drives the screw rod to rotate, so that the screw rod nut and the driving toothed plate are driven to reciprocate along the length direction of the shell.

Optionally, the disc extractor further comprises:

the sensing assembly is arranged in the shell and used for detecting the movement state of the clamping hook.

Optionally, the sensing assembly includes:

at least one correlation sensor arranged in the shell, wherein each correlation sensor comprises a transmitting end and a receiving end which are parallel to each other;

The sensing separation blade is arranged on the screw nut and can move between the transmitting end and the receiving end of the correlation sensor under the drive of the screw nut, so that the movement state of the driving toothed plate is detected, and the movement state of the clamping hook is detected.

In particular, the invention also provides an optical disc library with the disc extractor, which further comprises two groups of optical disc boxes which are oppositely arranged and are arranged at intervals, wherein an optical disc tray is arranged in the optical disc boxes, and the disc extractor is movably arranged between the two groups of optical disc boxes;

The two ends of the two clamping hooks of the disc drawer, which are positioned on the same side of the shell, simultaneously move to a protruding state so as to completely draw out the disc tray in one group of disc boxes, and simultaneously, the two ends of the two clamping hooks, which are positioned on the other side of the shell, simultaneously move to a shrinking state, and the clamping hooks do not interfere with the other group of disc boxes when in the shrinking state.

According to the scheme of the invention, as one end of the clamping hook of the disc drawer is contracted in the shell when protruding out of the hole, and two ends of the two clamping hooks, which are positioned on the same side face of the shell, are simultaneously protruded or contracted, when the disc drawer is placed in a space between two disc cartridge bins which are arranged face to face, one end of the clamping hook on one side of the shell is protruded to perform the operation when the disc drawer is in unlocking, extracting or pushing operation, and the other end of the clamping hook on the other side of the shell is contracted in the shell, so that the disc cartridges in the opposite disc cartridge bins are not interfered, and the disc drawer calibration difficulty is reduced.

And through utilizing a actuating mechanism and transmission module, realize two trip along opposite directions, through ingenious mechanical structure's design from this, furthest reduces the use of spare part, has reduced manufacturing cost, simultaneously because the reduction of spare part quantity to the overall reliability of taking out the dish ware has been improved.

The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic block diagram of a related art optical disc library;

FIG. 2 shows a schematic top view of a prior art disc extractor;

FIG. 3 shows a schematic block diagram of a disk drawer according to one embodiment of the invention;

FIG. 4 shows a schematic exploded view of the interior of a drawer according to one embodiment of the invention;

FIG. 5 shows a schematic front view of the interior of a drawer according to one embodiment of the invention;

FIG. 6 illustrates a state diagram of the drawer as it pulls out the left side disk tray according to one embodiment of the present invention;

In the figure: 1-shell, 2-trip, 21-mounting hole, 22-claw hook, 23-combination tooth, 3-orifice, 4-limit notch, 5-actuating mechanism, 51-actuating motor, 52-lead screw, 53-lead screw nut, 61-drive toothed plate, 611-rack, 62-transfer gear, 7-sensing component, 71-sensing separation blade, 72-correlation sensor, 8-CD box, 9-CD tray, 10-drawer, 101-claw, 11-CD box storehouse.

Detailed Description

Fig. 3 shows a schematic block diagram of a disc extractor according to an embodiment of the present invention. As shown in fig. 3, the disc drawer comprises a housing 1 and two hooks 2. The housing 1 has two sets of apertures 3 arranged in spaced apart relation, each set of apertures 3 comprising two apertures 3 arranged in opposition on opposite sides of the housing 1. Each hook 2 is arranged to be operable or controlled such that one end thereof moves from a protruding condition protruding out of one aperture 3 of a set of apertures 3 to a retracted condition retracted into the housing 1, while the other end moves from a retracted condition retracted into the housing 1 to a protruding condition protruding out of the other aperture 3 of the set of apertures 3. Wherein, the two ends of the two hooks 2 on the same side of the shell 1 move to the protruding state or the shrinking state at the same time.

According to the scheme of the invention, since one end of the hook 2 of the disc drawer is contracted in the shell 1 when protruding out of the orifice 3, and two ends of the two hooks 2 positioned on the same side of the shell 1 are simultaneously protruded or contracted, when the disc drawer is placed in a space between two disc cartridges 8 in face-to-face arrangement, one end of the hook 2 on one side of the shell 1 is protruded to perform the operation when the disc drawer is in unlocking, extracting or pushing operation, and the other end of the hook 2 on the other side of the shell 1 is contracted in the shell 1, so that the disc cartridges 8 in the opposite disc cartridges 8 are not interfered, and the difficulty of disc drawer calibration is reduced.

In one embodiment, the housing 1 is configured in the shape of an elongated strip. Preferably, the shape of the housing 1 is rectangular. The length of the hook 2 is greater than the width of the housing 1. In order to achieve that one end of the hook 2 protrudes out of the aperture 3 and the other end is retracted in the housing 1, in one embodiment, as shown in fig. 4 and 5, two limit notches 4 corresponding to two groups of apertures 3 are provided on the bottom surface of the housing 1. The limit notch 4 extends on the bottom surface of the housing 1 along a plane perpendicular to the longitudinal direction of the housing 1, and when the housing 1 is rectangular, i.e., extends along the width direction of the housing 1. The hook 2 has a mounting hole 21, and the hook 2 is disposed at the limit notch 4 by a pin (not shown). When the pin moves along the limit notch 4, the hook 2 is driven to move along a path defined by the limit notch 4, so that the hook 2 is switched between a protruding state and a shrinking state.

It will be appreciated that either end of the two hooks 2 may be used to unlock the disc tray 9 and to grasp the disc tray 9. The two ends of each hook 2 are provided with a claw hook 22, and the two ends of the claw hook 22 are bent towards the center direction of the shell 1 and are used for being matched with the optical disc tray 9 to unlock the optical disc tray 9.

In order to move the hook 2 along the path defined by the limit slot 4, in one embodiment a drive mechanism 5 and a transmission module are also provided. The driving mechanism 5 is used for outputting driving force, the transmission module is arranged in the shell 1 and driven by the driving mechanism 5, and the transmission module is connected with the clamping hook 2 to drive the clamping hook 2 to move. In this embodiment, by means of smart design, it is possible to use one driving mechanism 5 to drive the transmission module to move, and thus drive the two hooks 2 to move simultaneously. Wherein, a plurality of combining teeth 23 are formed on one side of any hook 2 of the two hooks 2 facing the center of the shell 1.

The transmission module comprises a driving toothed plate 61 and two transfer gears 62. The driving toothed plate 61 is disposed between the two hooks 2 and driven by the driving mechanism 5, and has racks 611 at both ends thereof. The drive rack 61 is driven by the drive mechanism 5 to reciprocate in the longitudinal direction of the housing 1. Any one of the two transfer gears 62 is engaged with the rack 611 at one end of the driving toothed plate 61 adjacent thereto and the engaging tooth 23 of one of the hooks 2, respectively. The driving toothed plate 61 is configured to drive the two transfer gears 62 to simultaneously rotate in opposite directions, thereby driving the two ends of the two hooks 2 on the same side of the housing 1 to simultaneously move to the protruding state or the retracted state.

In one embodiment, the driving mechanism 5 may include a driving motor 51, a screw 52 and a screw nut 53, where the screw nut 53 is fixedly disposed on the driving toothed plate 61, and the driving motor 51 drives the screw 52 to rotate, so as to drive the screw nut 53 and the driving toothed plate 61 to reciprocate along the length direction of the housing 1.

In one embodiment, the disc drawer further comprises a sensing assembly 7, wherein the sensing assembly 7 is arranged in the shell 1 and is used for detecting the movement state of the clamping hook 2. The sensing assembly 7 includes a sensing blade 71 and at least one correlation sensor 72. The at least one correlation sensor 72 is provided in the housing 1, each correlation sensor 72 including a transmitting end and a receiving end parallel to each other. The sensing baffle 71 is disposed on the screw nut 53, and can be moved between the transmitting end and the receiving end of the correlation sensor 72 under the driving of the screw nut 53, so as to detect the movement state of the driving toothed plate 61, and further detect the movement state of the hook 2.

According to the scheme of the embodiment of the invention, the two clamping hooks 2 are in opposite directions by utilizing the driving mechanism 5 and the transmission module, so that the use of parts is reduced to the maximum extent by means of ingenious mechanical structure design, the manufacturing cost is reduced, and meanwhile, the overall reliability of the disc extractor is improved due to the reduction of the number of the parts.

In particular, the present invention also provides an optical disc library having the aforementioned disc drawer, which further comprises two sets of optical disc cartridges 8 disposed opposite to each other and spaced apart, wherein an optical disc tray 9 is disposed in the optical disc cartridge 8, and the disc drawer is movably disposed between the two sets of optical disc cartridges 8. The two ends of the two hooks 2 on the same side of the housing 1 of the disc drawer are simultaneously moved to a protruding state to completely withdraw the disc tray 9 in one set of disc cartridges 8, and at the same time, the two ends of the two hooks 2 on the other side of the housing 1 are simultaneously moved to a retracted state, and the hooks 2 do not interfere with the other set of disc cartridges 8 when in the retracted state.

Fig. 6 shows a state diagram when the drawer pulls out the left-side optical disk tray 9 according to an embodiment of the present invention. As shown in fig. 6, the drawer pulls out the left side tray 9, at this time, the left side hook 2 completely enters the left side tray 9 and hooks the unlocking mechanism of the optical disc tray 9, and the right side hook 2 is completely inside the drawer and does not protrude to the right side.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A disc extractor, comprising:

wherein, the two ends of the two hooks, which are positioned on the same side surface of the shell, move towards the protruding state or the shrinking state at the same time;

The shape of the shell is in a strip shape, the length of the clamping hook is larger than the width of the shell, and two limiting notches which correspond to the two orifice groups respectively are formed in the bottom surface of the shell.

2. The disc extractor according to claim 1, characterized in that,

3. The disc drawer of claim 2, wherein the two ends of each hook are bent toward the center of the housing to form a claw for cooperating with a disc tray to unlock the disc tray.

4. A disc extractor according to any of claims 1-3, further comprising:

a driving mechanism for outputting a driving force;

5. The disc drawer as recited in claim 4, wherein a side of the hook facing the center of the housing is formed with a plurality of coupling teeth, and the transmission module includes:

6. The disc drawer of claim 5, wherein the drive toothed plate is configured to reciprocate along a length of the housing under the drive of the drive mechanism.

7. The disc drawer of claim 6, wherein the drive mechanism comprises a drive motor, a lead screw, and a lead screw nut fixedly disposed on the drive pinion plate;

8. The disc extractor of claim 7 further comprising:

9. The disc extractor of claim 8 wherein the sensing assembly comprises:

10. An optical disc library having the disc drawer according to any one of claims 1-9, further comprising two sets of oppositely disposed and spaced apart optical disc cartridges, said optical disc cartridges having optical disc trays disposed therein, said disc drawer being movably disposed between two sets of said optical disc cartridges;