WO2007068159A1 - Disk selecting apparatus - Google Patents

Abstract

The present invention discloses a disk selecting apparatus comprising a casing, a circular plate, two step motors and a controlling circuit. On said circular plate, there is provided with storage grooves for storing optical disks, counting teeth each corresponding to one storage groove and a reset post which is arranged at original position of the circular plate. A reset sensor for detecting the reset post and a positioning sensor for detecting the counting teeth are mounted on said casing. There is a passage opening for the optical disks on a side wall of the casing, a roller for passage of optical disk is provided corresponding to said passage opening, and a sensor for detecting passage of the optical disk is mounted on the passage opening. Based on the information detected by the respective sensors, the controlling circuit causes one of said two step motors to rotate the circular plate and the other one to rotate the roller in two directions. Also, the other motor cause a cam mechanism for pushing the optical disks in the storage grooves of the circular to rotate while the roller is rotated by the other motor. The disk selecting apparatus of the present invention has the following functions: storing of optical disks, managing of optical disks and managing of data, etc., thereby achieving automatic storing and selecting of optical disks.

Description

 Dish selector

Technical field

 The present invention relates to a disc selecting machine, and more particularly to a disc selecting machine which can store discs in a large capacity and can automatically store and select discs.

Background technique

 In today's rapid development of the information industry, optical discs are used to record, store and back up a variety of materials in order to save and manage data. There are some libraries, electronic reading rooms, corporate data rooms, etc. that have more backup discs. Usually, some shelves are used to place discs or stacked together. However, with the increasing number of discs storing various kinds of information, it is inconvenient to store a large number of discs in a reasonable manner. It is difficult to find backup data from the pile of discs, and the discs that are stacked together are also easily damaged and the backup data is lost.

 Summary of the invention

 It is an object of the present invention to provide a disc player which can store a light butterfly in a large capacity and can automatically store and select a light butterfly.

The above object can be achieved by the following technical measures: A disc selector for automatically storing and selecting a disc, comprising a box, a turntable, two stepping motors and a control circuit, the turntable being fixed at the center of the bottom cover of the box body The rotating shaft is provided with a storage slot for placing the optical disc. The rotating disc is provided with a counting tooth corresponding to the storage slot and a resetting column set as a starting position of the rotating disc, and the lower surface edge of the rotating disc is provided with a driving transmission. a reset sensor for detecting a reset column and a positioning sensor for detecting a count tooth are disposed at corresponding positions in the bottom cover of the box; the side wall of the box is provided with a disc entrance hatch, and is provided for the access hatch In the rubber roll of the optical disc, a sensor for detecting the entrance and exit of the optical disc is installed at the entrance and exit of the optical disc; the above sensors are connected with corresponding ports on the control circuit; and the control circuit controls the two stepping motors according to the detection information of each sensor. In the reverse rotation, one of the stepping motors drives the turntable to rotate in the forward and reverse directions via the gear that meshes with the rotary drive teeth, and the rubber roll is driven by another stepping motor. In the reverse rotation, the stepping motor drives the reverse rotation of the rubber roller and also drives the cam mechanism for the optical disc in the storage tray of the top tray. The bottom cover of the box body is provided with a pulley supporting the turntable to facilitate the rotation of the turntable. A pressure cap is provided on the rotating shaft so that the turntable rotates stably.

 The cam mechanism is composed of a driving pulley driven by a stepping motor, a spiral surface cam and a top block hinged on the bottom cover of the turntable. A friction pad is arranged between the driving pulley and the cam, and the top surface is provided with a spiral surface of the cam. The upper tab and the bracket for the top tray shall be aligned with the disc access hatch.

 The middle portion of the turntable is a raised portion, and a storage groove which is distributed around the axis of the disk and equally distributed along the circumference is disposed in the raised portion.

 The control circuit includes a microprocessor, an input keyboard, an EPROM memory, an LCD display, and a stepper motor drive circuit. The components are connected to corresponding ports on the microprocessor.

 The microprocessor is provided with a cascade port for transmitting keyboard input commands and operating voltage, and a row of plug connectors or plug connectors connected to the cascade ports are provided on the upper and lower covers of the cabinet.

 The upper and lower covers of the box are provided with corresponding recesses or lugs for stable stacking between the boxes. The invention integrates the storage of the optical disc, the management of the optical disc and the management of the data, and realizes the automatic storage and selection of the optical disc, which can fully meet the requirements of the ordinary user for the management of the optical disc data. At the same time, because the scalability is considered quite adequately, even if the disc-selector is applied to the management of optical disc data of small and medium-sized enterprises, it can be handled with ease. Especially for many applications such as libraries and electronic reading rooms, disc players can maximize cost savings while improving data management efficiency.

DRAWINGS

 1 is a schematic view of disassembly and assembly of an internal structure of the present invention;

 Figure 1a is an enlarged schematic view of the cam mechanism of Figure 1;

 2 is a schematic structural view of a turntable of the present invention;

 Figure 3 is a plan view of Figure 2;

 Figure 4 and Figure 5 are schematic views of the structure on the stacking surface of two boxes;

 Figure 6 is a schematic view showing a plurality of cabinet stacking structures;

Figure 7 is a block diagram showing a specific implementation of an automatic control circuit in the present invention; Figure 8 is a block diagram of the control flow.

detailed description

 As shown in FIG. 1 to FIG. 6, the present invention comprises a closed box 1 , a turntable 2 and two stepping motors 3 and 4, and a bottom shaft 5 in the box body is fixed at the center of a rotating shaft 6, and the turntable 2 is fixed on the rotating shaft 6. , so that the turntable rotates stably, and the pressure cap 17 is screwed on the rotating shaft. The middle portion of the upper surface of the turntable 2 is a ring-shaped bulging portion 7, and the bulging portion is provided with a diverging storage groove 8 centered on the disk axis, and the storage grooves are equally spaced along the circumference of the turntable, and the storage groove is a wide and narrow through-hole. The length of the slot should be smaller than the diameter of the disc. The edge of the disc inserted in the storage slot protrudes from the lower surface of the turntable. The lower edge of the disc turntable is provided with a ring of transmission teeth 9, and the two stepping motors are fixed in the bottom cover of the box. Above, one of the stepping motors 3 drives the transmission gear set 10 fixed on the bottom cover by a conveyor belt. One of the gear sets meshes with a ring of transmission teeth 9 of the lower surface edge of the turntable 2 to drive the turntable 2 to rotate in the forward and reverse directions. In addition, the rotation of the turntable is facilitated, and three pulleys 16 supporting the turntable are fixed at equal intervals on the bottom cover of the casing. The side wall of the cabinet is provided with a disc entrance hatch 1 1, and a pair of rubber rollers 12 for absorbing the optical disc are fixed by the bracket 21 corresponding to the access hatch. The lower end of the rubber roller is fixed with a transfer wheel 13, and the other stepping motor 4 passes. The conveyor belt connected to the lower end of the rubber roller drives the rubber roller 12 to rotate in the forward and reverse directions.

The stepping motor 4 drives the cam mechanism for the optical disc in the top tray storage slot while driving the reverse rotation of the rubber roller. The cam mechanism is driven by the stepping motor, the drive pulley 14 with the spiral surface 15, and the hinge 16 A top block 17 is formed on the bottom cover of the turntable. A friction pad 18 is disposed between the drive pulley 14 and the cam 16. The top block 17 is provided with a bayonet 19 resting on the spiral surface 15 of the cam and a tray for supporting the optical disc. Face 20, the bracket part should be aligned with the disc access hatch 1 1 . When the stepping motor rotates in the reverse direction, the stepping motor drives the driving pulley. The driving pulley drives the cam to rotate through the friction pad. The cam rotation drives the spiral surface to lift and lifts the top block. Thus, as the spiral surface is lifted, the top surface of the top block gradually becomes The disc is lifted into the disc outlet; the cam rotates continuously until the top tab is in contact with the stop at the end of the helix, the cam stops rotating, and the top block stops rising. At this time, the stepping motor 4 continues to drive the rubber roller to rotate through the conveying wheel 13 until the disc is ejected. Conversely, the top block is reset. As shown in FIG. 7 and FIG. 8, in order to realize automatic storage and removal of the optical disc, the present invention provides an automatic control circuit, and the automatic control circuit board 22 is fixed on the bottom cover, and the circuit includes a microprocessor, an input keyboard, an EPROM memory, and an LCD. A display, a stepper motor drive circuit, a reset sensor for detecting a reset strip, a position sensor for detecting a count tooth, and a sensor for detecting the entrance and exit of the disc are connected to respective ports on the microprocessor. The input keyboard and the LCD display form a control box 25 mounted on the upper surface of the cabinet. The microprocessor uses a processing module of type W925E240, the stepping motor drive circuit uses a drive module of type LB1836M, and the reset sensor and the positioning sensor are of the type FI-205 optical interrupter, the sensor for detecting the entrance and exit of the optical disc adopts the optical interrupter of type FR-205. For the corresponding control circuit, the counting teeth 23 and the corresponding ones corresponding to the storage slots for the optical discs are added to the turntable. Set to the reset column 24 of the start position of the turntable. On the turntable, 100 optical disc storage slots can be evenly distributed, and a counting counter 23 is arranged on the lower surface of the turntable corresponding to the storage slot, and the counting teeth are located in the inner ring of the transmission teeth. When the turntable rotates, the counting teeth follow the turntable Two counting positioning sensors pass through, and the sensor detects how many counting teeth pass through the positioning sensor to obtain the disc storage slot number currently aligned with the access hatch. On the upper surface of the turntable, a serial number is written corresponding to each slot, and the reset column 24 is set in the first serial number. When the system is powered on, first read all the optical disks stored in the EEPROM before the last power failure. The name and the information of its location, then reset the turntable. When the reset post passes from the middle of the reset sensor, the position of the turntable is just right when the first slot is aligned with the entrance and exit of the disc, and the microprocessor detects the signal of the reset sensor. To determine the initial position of the turntable, complete the reset work.

 When the infrared light sensor located in the access hatch detects the insertion of the optical disc, the stepping motor 4 is started in the forward direction, and the rubber roller is rotated by the conveyor belt to suck the optical disc into the storage slot of the turntable. After detecting that the optical disc has been completely sucked into the internal body, the infrared sensor automatically stops the stepping motor 4, and simultaneously starts the stepping motor 3 to rotate the turntable, and aligns the empty slot with the smallest number in the turntable to the hatch for storage. An inhaled disc.

When receiving the command to eject the optical disc, first start the stepping motor 3 to rotate the dial, and align the disc to be ejected toward the exit. After the turntable is in position, the stepping motor 3 is stopped, and the stepping motor 4 is started in reverse. The stepping motor first drives the cam mechanism to rotate through the conveyor belt, and the optical disc is lifted, and the optical disc is lifted and rolled into the middle of the two rubber rollers. 06 000927 The cam is turned to the highest point to stop the rotation. The stepping motor 4 continues to rotate to drive the rubber roller to eject the disc in the middle of the rubber roller. When the infrared light sensor located in the access hatch detects that most of the disc has been ejected, in order to avoid The optical disc is dropped. When the infrared sensor detects that the optical disc has completely passed the detection range of the infrared sensor, the rotation of the stepping motor 4 is stopped, waiting for the user to take out the optical disc. If within 30 seconds, the infrared sensor detects that the optical disc has not been taken out by the user. , then automatically re-inhale the disc into the body.

 When the disc player detects that a disc is inhaled, the system will ask the user to enter the name of the current disc. After the user enters the disc name, the system automatically stores the name and position information of the disc in the EEPROM. When the user removes a disc from the disc drive, the system automatically erases the information about the disc in the EEPROM.

 The software of the system is written by multi-task scheduling mechanism, which divides the functions in the system into optical disc task, optical disc task, disc detection task, sub-machine access task, LCD display task, Chinese-English input task, key scan task and An empty task. The software design adopts a time-sharing and multi-priority scheduling mode to perform timed scanning on different tasks. Once a high-priority task condition meets the requirements, the system will suspend the currently executed task to execute the task with high priority until the task ends. Then return to continue the interrupted task. Such a software system design can well ensure the rapid response of important tasks in the system, and secondly, the system maintainability and stability are greatly enhanced.

 As shown in Figure 4 to Figure 6, when the capacity of a storage box cannot meet the user's needs, you can choose to stack the capacity to expand the capacity. A cascade port for transmitting keyboard input commands and operating voltage is disposed on the microprocessor, and a row of plug connectors 28 or plug connectors 29 connected to the cascade ports are provided on the upper and lower covers of the cabinet 1. Corresponding notches 27 or lugs 26 are provided on the upper and lower covers of the casing to securely stack the casings. The system can be expanded to a maximum of 5 cascades, which means that its maximum capacity can accommodate 500 discs.

 The function of the invention is described as follows -

1) In the case of system power failure, the system CD storage information can still be saved;

 2) Always keep the corresponding empty disk at the entrance of the disc as the empty disk with the smallest disc number;

3) Each time the change of the information stored in the disc is saved to the EEPROM; 4) Save the name of the disc that has been ejected by the filial piety for the last 6 times. When a new disc is inhaled, you can choose whether it is the first 6 ejected discs;

 5) The user inputs any disc number on the main operation interface, and the system will automatically detect the status of the disc position. If the disc position is empty, the disc position is transferred to the disc inlet, otherwise the disc in the disc position is ejected;

6) The user can use the arrow keys to select the disc displayed on the screen, or use the numeric keys to directly select the disc to be operated by the user;

 7) According to the needs of users, the disc selection machine can be cascaded up to 5, and the maximum number of discs is 500;

 8) Users can search all the CD-related information related to the keyword in the system by inputting keywords;

 9) The system inhales the disc and must ask the user to enter the disc name. If no information is entered within 30 seconds, the system automatically defines the name of the disc as "undefined n";

 10) The system ejects the disc, the user needs to remove the disc within 30 seconds, otherwise the system will re-inhale the disc;

 11) Indicator status indication:

 a) When the system is powered on, the indicator light is on.

 b) Flashing at 1 Hz indicates that the system is initializing.

 c) Blinking at 2Hz indicates that the system is ejecting or inhaling the disc.

Claims

Rights request 1 . A disc selection machine, comprising: a box body, a turntable, two stepping motors and a control circuit, wherein the turntable is fixed on a rotating shaft at the center of the bottom cover of the box body; and the turntable is provided with a disc for placing the disc a storage slot, the turntable is provided with a counting tooth corresponding to the storage slot for placing the optical disc and a resetting column set as the starting position of the rotating disc, and a rotating tooth is arranged on the lower surface edge of the rotating disc, in the bottom cover of the box body Corresponding position is installed with a reset sensor for detecting the reset column, and a positioning sensor for detecting the counting teeth; the side wall of the box is provided with a disc entrance hatch, and the corresponding inlet and outlet ports are provided with a rubber roll for absorbing the optical disc. A sensor for detecting the entrance and exit of the optical disc is installed in the access hatch of the optical disc; the above sensors are connected with corresponding ports on the control circuit; the control circuit controls the forward and reverse rotation of the two stepping motors according to the detection information of each sensor, one of the steps The motor drives the turntable to rotate in the forward and reverse directions through the gear meshed with the rotary drive tooth, and the rubber roller is driven by the other stepper motor to rotate in the forward and reverse directions. Counter-rotating roller driven but also for rotating the jacking dial disc storage groove cam mechanism.  2. The disc changer according to claim 1, wherein said cam mechanism comprises a stepping motor driven drive pulley, a helicoidal cam and a top block hinged to the turntable bottom cover, between the drive pulley and the cam A friction pad is provided, and the top block is provided with a bayonet resting on the spiral surface of the cam and a supporting surface for supporting the optical disc, and the supporting surface portion is aligned with the optical disc into and out of the hatch.  3. The disc changer according to claim 1, wherein the middle portion of the turntable is a ridge portion, and the ridge portion is provided with a storage groove which is diverging around the axis of the disc and equally spaced along the circumference.  4. The disc player according to claim 1, wherein: the bottom cover of the box body is provided with a pulley supporting the turntable. 5. The disc changer according to claim 1, wherein: the control circuit comprises a microprocessor, an input keyboard, an EPROM memory, an LCD display, and a stepping motor drive circuit, wherein each of the components is connected to a corresponding port on the microprocessor. . The disc changer according to claim 5, wherein the microprocessor is provided with a cascade port for transmitting keyboard input commands and operating voltage, and is cascaded on the upper and lower covers of the cabinet. A row of plug connectors or plug connectors that are connected to the port.  7. The disc changer according to claim 1 or 6, wherein: the upper and lower covers of the casing are provided with corresponding recesses or lugs for stable stacking between the casings.  8. A disc storage box in a disc changer according to claim 1, comprising: a box body, a turntable and two stepping motors, wherein a center of the bottom cover of the box body is provided with a rotating shaft, and the turntable is fixed on the rotating shaft On the turntable, there is a storage slot for placing the optical disc, and a rotating tooth is arranged on the lower surface edge of the turntable, and two stepping motors are fixed on the bottom cover of the box body, wherein one stepping motor is combined with the rotary tooth drive The gear drives the turntable to rotate in the forward and reverse directions. The side wall of the box has a disc entering and exiting the hatch, and the corresponding inlet and outlet ports are provided with a rubber roll for absorbing the optical disc, and the rubber roll is driven by the other stepping motor to rotate in the forward and reverse directions. The stepping motor drives the reverse rotation of the rubber roller and also drives the cam mechanism for the optical disc in the storage tray of the top tray.