CN2681278Y

CN2681278Y - A disk movement

Info

Publication number: CN2681278Y
Application number: CN 03274811
Authority: CN
Inventors: 杨东佐
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-28
Filing date: 2003-09-28
Publication date: 2005-02-23
Anticipated expiration: 2013-09-28

Abstract

The utility model discloses a disk movement including a casing, a transfer disk, a drive device, a signal switch, etc. The casing is provided with a jack for inserting disks, and the transfer disk is positioned in the casing on the inside of the jack. The limiting signal switch, which adjusts the transfer disk to arrive at the reading disk location and stop traveling, is arranged on a proper location on the movement. The utility model has the advantages of simple structure, convenient use, low noise, low accuracy of manufacture, lower cost and adequate quality for reading and writing disk, and the equipment such as laser head and object glass can effectively prevent vibration and keep an accurately relative position among disks.

Description

A kind of core of disk

Technical field:

The utility model relates to usefulness discs such as using disc and photomagneto disk and carries out the diskette machine movement that information writes down as carrier, particularly adjusts the limit signal device that core of disk transmission dish stops stroke.

Background technology:

Because disc has high density, digital record, disc has become main data recording media, is widely used in the diskette machines such as CD, CD-ROM, VCD, DVD, LD and MD, gos deep into day by day in people's the life.The transmission dish of existing core of disk moves to when stopping travel position, when just reading and writing disk location, and the stop motion of transmission dish, the position relation of disc and read/write head guarantees by the manufacturing accuracy of movement.Be in accurate relative position between disc and read/write head when transmission dish and movement, read-write discs when making the transmission dish arrive the read-write discs position, guarantee disc can be under the driving of drive unit the read-write quality of normal rotation and disc, must improve the manufacturing accuracy of movement like this, increase manufacturing cost greatly; On the other hand, because the complex structure of movement, always produce some foozles during fabrication, the relative position error when foozle can produce transmission dish arrival read-write discs position between transmission dish and movement, read-write disc hour indicator sheet and read/write head, thereby when be difficult to guaranteeing that the transmission dish arrives the read-write discs position transmission dish with movement, read and write between disc hour indicator sheet and read/write head and be in accurate relative position, influence the read-write discs quality.

Summary of the invention:

The limitation travel switch that fundamental purpose of the present utility model is to provide a kind of and is in accurate relative position between transmission dish and movement, read-write disc hour indicator sheet and read/write head when adjusting the transmission dish and arriving the read-write discs position, have certain clearance to make disc freely rotate and reduce manufacturing accuracy, reduce cost between transmission dish and the disc that enters when guaranteeing to read and write disc.

Second purpose of the present utility model is the fixed installation of disc read/write head movement, guarantees read-write discs quality and the effective shock-absorbing of equipment such as laser head, object lens, guarantees that disc read-write discs position is accurate.

Realize a kind of core of disk of the present utility model, comprise housing, transmission dish, drive unit, signaling switch etc., on housing, be provided with the socket of putting into disc, the transmission dish places in the housing of socket inboard, is provided with in the appropriate position of movement to adjust the limit signal switch that the transmission dish arrives read-write disk location termination stroke.By adjusting the termination stroke that the transmission dish arrives the read-write discs position, the relative position error when the transmission dish that elimination produces because of foozle in manufacture process arrives the read-write discs position between transmission dish and movement, read-write disc hour indicator sheet and the read/write head, relative position relation between disc and read/write head when transmission dish and movement, read-write discs when adjusting the transmission dish and arriving the read-write discs position, be in accurate relative position between transmission dish and movement, read-write disc hour indicator sheet and read/write head when guaranteeing transmission dish arrival read-write discs position, thereby guarantee the read-write discs quality.

As improvement of the present utility model, the limit signal switch is positioned at the appropriate location of movement inner housing bottom.Adjust the height of transmission dish, make read-write discs and transmission dish that certain clearance be arranged, with the assurance disc can be under the driving of drive unit normal rotation.

As improvement of the present utility model, the limit signal switch comprises support, is fixed on two shell fragments on the support, each shell fragment is provided with the connector lug that is connected with circuit, end at the support that is fixed with shell fragment is provided with adjustable screw, can adjust the transmission dish in motion process with the contact position of shell fragment, thereby the transmission dish is with movement when adjusting the transmission dish and arriving the read-write disk location, read and write the relative position relation between disc hour indicator sheet and read/write head;

As improvement of the present utility model, on support, be provided with an end difference, two shell fragments are fixed on an end that has end difference on the support,, adjustable screw is fixed on the face that deviates from end difference on the support.Be provided with end difference, it is easily deformable to make support have an end of end difference.

As improvement of the present utility model, the part that is connected with rack body at end difference is provided with groove, and it is easily deformable to make support have an end of end difference.

As improvement of the present utility model, on the transmission dish, be provided with one or more than one guide rods, correspondingly on the housing be provided with one or guide rail that one or more matches with guide rod, guide rail can be on sustained height, guide rail is arranged along the disc approach axis, the guide rail rear end seamlessly transits bending downwards, and the corresponding transmission dish of following curved point of guide rail afterbody is brought into the disk tray position of spindle drive motor or the disc residing position of its guide rod in the disk tray position range time with disc.When disc moves to the read-write disk location, the height of limit signal switch adjustment transmission dish in movement, because the guide rail rear end seamlessly transits bending downwards, thereby adjust the termination stroke of transmission dish in movement, be in accurate relative position between transmission dish and movement, read-write disc hour indicator sheet and read/write head when guaranteeing transmission dish arrival read-write discs position, guarantee the read-write discs quality of disc; Owing to be that the transmission dish moves up and down, equipment such as laser head, object lens do not move simultaneously, and laser head, object lens etc. effectively shock-absorbing also and between disc keep accurate relative position.

As improvement of the present utility model, on the housing of socket both sides, be provided with wall, drive unit for be connected between transmission dish and wall by the worm and wormwheel of motor driven and appropriate location at interior saddle on that have and the tooth bar worm and wormwheel interlock, on the transmission dish, be provided with the stop means that prevents that transmission dish and worm and wormwheel break away from, when guide rod placed the wall groove to be bent downwardly, the correspondence position that tooth bar contacts with worm and wormwheel had the notch that adapts with the worm and wormwheel shape.Rotate by worm screw, worm gear that belt drives is fixed in the machine core shell appropriate location by motor, thereby the tooth bar of the transmission that drives interlock with it under trying to get to the heart of a matter advances the transmission dish or retreats, make simple in structure, cost is low, driving is reliable.

As improvement of the present utility model, guide rail is the wall groove that has on the wall, and guide rod places the transmission dish on the position of wall, and guide rod stretches into the wall groove, and in the rear end of wall groove, the wall groove seamlessly transits bending downwards.Adopt the guide rail of wall slot type, make simple in structurely, the transmission dish slides on the wall groove steadily and be reliable, and is spacing easy.

Realize a kind of inhalation type machine core of the present utility model, have simple in structure, easy to use, noise is little, manufacturing accuracy is low, cost is lower, the read-write discs quality reach well equipment such as laser head, object lens effectively shock-absorbing and and disc between keep the advantage of accurate relative position.

Description of drawings:

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is the stereographic map that utility model is removed loam cake;

Fig. 3 is the vertical view of utility model;

Fig. 4 is the cut-open view of the utility model along the A-A cutting line of Fig. 3;

Fig. 5 is the stereographic map of the utility model limit signal switch;

Embodiment:

To shown in Figure 5, embodiment of the present utility model is as Fig. 1, is provided with the socket 1 of putting into disc on housing 27, and transmission dish 2 places on the housing 27 of socket 1 inboard; Transmission dish 2 comprises the interior saddle 3 that props up disc, the part that contacts with disc at interior saddle 3 front ends is equipped with the rubber layer of the disc that prevents to wear and tear, on interior saddle 3, have the fluting 18 that can expose disc read/write head movement and with diameter be the disc storage tank 26 that the disc diameter of 120mm adapts, its storage tank 26 props up Pan Chu and is stained with flannelette to avoid abrading disc, coil 2 bottoms in transmission and have the tooth bar 20 that is meshed with the worm and wormwheel 19 of motor 12 drivings, left and right intermediate plate 4 is housed on the interior saddle 3, reaches compatible and limits the disc compatible apparatus 5 that big small disc enters interior saddle 3; Left and right intermediate plate 4 is connected with interior saddle 3 with disc compatible apparatus 5 rear ends, and front end is a free end, can overturn in certain angle; Disc compatible apparatus 5 is on intermediate plate 4, intermediate plate 4 is on interior saddle 3, on interior saddle 3, entrust the disc place to be provided with first iron plate 7, the part that contacts with disc at intermediate plate 4 front ends is equipped with first magnetic patch, first iron plate 7 is inhaled mutually with first magnet 8 and is compressed disc, second iron plate, 28, the second iron plates 28 are housed on disc compatible apparatus 5 can be inhaled with interior saddle 3 corresponding second magnet 6 mutually by left and right intermediate plate 4 corresponding aperture positions, and disc compatible apparatus 5 sees through left and right intermediate plate 4 and is adjacent to interior saddle 3; Drive unit started when first signaling switch 111 that drive unit started when signaling switch comprised the insertion of control small disc and big disk plate inserted secondary signal switch 112 and the 3rd signaling switch 113, first signal is opened 111 passes and is positioned on the disc compatible apparatus 5, secondary signal switch 112 and the 3rd signaling switch 113 are positioned at saddle 3, secondary signal switch 112 and the 3rd signaling switch 113 polyphones, first signaling switch 111 and secondary signal switch 112, the series circuit parallel connection at the 3rd signaling switch 113 places, the parallel circuit at its place links to each other the secondary signal switch with movement control circuit outward, the 3rd signaling switch is arranged in big disk plate and moves in movement and can contact simultaneously, and small disc moves in movement in the scope that can't touch simultaneously; The both sides at disc compatible apparatus 5 front end sockets 1 place have a diameter to be a bit larger tham or equal the arc back-up ring 9 of 80mm, the radian of the arc back-up ring 9 on both sides is less than or equal to circular arc half, left and right intermediate plate 4 appropriate locations have the position, hole that adapts to arc back-up ring 9, the arc back-up ring 9 of disc compatible apparatus 5 sees through left and right intermediate plate 4 and develops mutually with interior saddle 3 under magneticaction, has a guiding surface 10 between arc back-up ring 9 front end faces that it develops and lower surface; On the housing 27 of socket 1 both sides, be provided with wall 16, have wall groove 17 in the both sides of wall 16, wall groove 17 is arranged along the disc approach axis, and on a wall 16, have two or more wall groove 17, wall groove 17 can be on sustained height, at transmission dish 2 guide rod 22 is housed on the position of wall 16, guide rod 22 places transmission dish 2 on the position of wall 16, guide rod 22 stretches into wall groove 17, rear end at wall groove 17, wall groove 17 is bent downwardly, when guide rod 22 enters wall groove 17 and is bent downwardly, the correspondence position that tooth bar 20 contacts with worm and wormwheel 19 has the notch 23 that adapts with worm and wormwheel 19 shapes, guide rod 22 has two or more accordingly and inserts corresponding wall groove 17 respectively, can guarantee that like this drive plate 2 can isostatic movements, its guide rod 22 residing positions when the corresponding transmission dish 2 of following curved point of wall groove 17 afterbodys is brought into disc in disk tray 24 positions of spindle drive motor or disk tray 24 position ranges; 16 of transmission dish 2 and walls are connected by the worm and wormwheel 19 that is driven by motor 12, have tooth bar 20 on the appropriate location of the interior saddle 3 of transmission dish 2 with worm and wormwheel 19 engagements, the stop means that prevents that transmission dish 2 and worm and wormwheel 19 break away from is being housed on 2 on the transmission dish, such as being the projection 21 of stretching out to worm and wormwheel 19 directions, the appropriate location of the bottom of movement is provided with first projection 29 in housing 27, on the compatible device 5 of disc, be provided with second projection 30 corresponding with housing 27 bottom projections, on a left side, right clamping piece 4 is provided with three projection 31 corresponding with housing 27 bottom projections, near transmission dish 2 reaches down curved some during the position, when just reading and writing disk location, transmission dish 2 descends, first projection 29 jack-up, second projection 30 and the 3rd projection 31, thereby with intermediate plate 4, push up on disc compatible apparatus 5 and the disc and separate; Appropriate position, housing 27 bottom in movement is provided with near the limit signal switch 114 of an adjustment transmission dish 2 height the curved point under guide rail; Limit signal switch 114 comprises support 37, is fixed on two shell fragments 33 on the support, each shell fragment is provided with the connector lug 34 that is connected with circuit, end at the support that is fixed with shell fragment is provided with adjustable screw 35, and limit signal switch 114 is fixed in the movement by screw 36.After inserting small disc, small disc enters a left side, in the arc back-up ring 9 of right clamping piece 4, touch first signaling switch 111 on the disc compatible apparatus 5 when being inserted into destination locations, circuit turn-on, open motor 12 and drive worm and wormwheel 19 rotations, thereby drive the tooth bar 20 under the transmission dish 2 that is engaged with, transmission dish 2 is moved to 17 times curved some directions of wall groove along wall groove 17, and disc is put on the disk tray 24 of spindle drive motor or disk tray 24 scopes, at this moment the guide rod 22 of transmission dish 2 has been in wall groove 17 reclinate parts, and in wall groove 17 tracks to sinking, the back shake-up that puts in place is loaded on the limit signal switch 114 of this position, closes motor 12, simultaneously first projection 29 jack-up, second projection 30 and the 3rd projection 31, transmission dish 2 and disc are thrown off, disc falls in the disk tray 24 of spindle drive motor, and magnet head 25 falls, the signaling switch that transmission dish 2 touches on the movement, the rotation of drive shaft motor, and drive disc rotation beginning to read dish; When needing to take out disc, the drive mechanism of drive unit is sent disc by with the reverse action of upper type, when transmission dish 2 moves to the stop means of front end, touch the limit switch 115 of front end, close the motor 12 that drives worm and wormwheel 19, motion stops, and disc takes out.When inserting big disk plate, arc back-up ring 9 diameters that exceed compatible device because of the big disk plate diameter, the disc edge at first contacts the guiding surface 10 of back-up ring 9 outer ends, the arc back-up ring 9 of disc compatible apparatus 5 is by the disc jack-up that makes progress, disc is entered in the disc storage tank 26 of interior saddle 3, and compress by intermediate plate 4, two secondary signal switches 112 of the correspondence series connection of establishing on the saddle 3 in touching when being inserted into destination locations and the 3rd signaling switch 113, circuit turn-on, open motor 12 and drive worm and wormwheel 19 rotations, thereby drive the tooth bar 20 under the transmission dish 2 that is engaged with, transmission dish 2 is moved to 17 times curved some directions of wall groove along wall groove 17, and disc is put on the disk tray 24 of spindle drive motor or disk tray 24 scopes, at this moment the guide rod 22 of transmission dish 2 has been in wall groove 17 reclinate parts, and in wall groove 17 tracks to sinking, the back shake-up that puts in place is loaded on the limit signal switch 114 of this position, close motor 12, first projection, 29 jack-up second and the 3rd projection 31, transmission dish 2 and disc are thrown off, disc falls in the disk tray 24 of spindle drive motor, magnet head 25 falls, the signaling switch that transmission dish 2 touches on the movement, the rotation of drive shaft motor, and drive disc rotation beginning to read dish; When needing to take out disc, the drive mechanism of drive unit is sent disc by with the reverse action of upper type, when transmission dish 2 moves to the stop means of front end, touch the limit signal switch 115 of front end, close the motor 12 that drives worm and wormwheel 19, motion stops, and disc takes out.If the small disc edge at first contacts the guiding surface 10 of back-up ring 9 outer ends, even the arc back-up ring 9 of disc compatible apparatus 5 is by the disc jack-up that makes progress, disc enters on the disc storage tank 26 of interior saddle 3, because of disc can't contact secondary signal switch 112 and the 3rd signaling switch 113 simultaneously, circuit can't conducting, so small disc also can't enter in the movement.

Signaling switch adopts two and is with flexible copper sheet 13, by plastic cement shell 14 affixed one-tenth one electric power loop devices, the appropriate location of plastic cement shell 14 has aperture, so that use during assembling, one end of two copper sheets 13 stretches out to equidirectional bending and presents the lower plane position, and two copper sheets, 13 other ends become the inserted sheet shape to expose; During use, being fixed on by aperture with suitable connector needs the position, such as on interior saddle 3 and disc compatible apparatus 5, the copper sheet 13 of inserted sheet shape one end connects makes the interface of appliance become loop apparatus, depress or promote copper sheet 13 by the other end to copper sheet 13 bending directions, two crooked copper sheets 13 are contacted, and the loop is connected and is played on-off action.

Claims

1. core of disk, comprise housing (27), transmission dish (2), drive unit, signaling switch, on housing (27), be provided with the socket (1) of putting into disc, transmission dish (2) places in the inboard housing (27) of socket (1), it is characterized in that: be provided with in the appropriate position of movement and adjust the limit signal switch that the arrival of transmission dish reads to coil position termination stroke.

2. core of disk as claimed in claim 1 is characterized in that: limit signal switch (114) is positioned at the appropriate location of movement inner housing bottom.

3. core of disk as claimed in claim 1, it is characterized in that: limit signal switch (114) comprises support (37), is fixed on two shell fragments (33) on the support, each shell fragment is provided with the connector lug (34) that is connected with circuit, is provided with adjustable screw (35) at an end of the support that is fixed with shell fragment.

4. core of disk as claimed in claim 2 is characterized in that: be provided with an end difference on support, two shell fragments (33) are fixed on an end that has end difference on the support,, adjustable screw (35) is fixed on the face that deviates from end difference on the support.

5. core of disk as claimed in claim 2 is characterized in that: the part that is connected with rack body at end difference is provided with groove.

6. as the described core of disk of the arbitrary claim of claim 1 to 5, it is characterized in that: on transmission dish (2), be provided with one or more than one guide rods, housing (27) is gone up correspondence and is provided with one or guide rail that one or more matches with guide rod, guide rail can be on sustained height, guide rail is arranged along the disc approach axis, the guide rail rear end seamlessly transits bending downwards, and the corresponding transmission dish of following curved point (2) of guide rail afterbody is brought into disk tray (24) position of spindle drive motor or the disc residing position of its guide rod (22) in disk tray (24) position range the time with disc.

7. core of disk as claimed in claim 6, it is characterized in that: drive unit is at the worm and wormwheel by motor driven (19) that is connected between transmission dish (2) and wall (16) and that have on the appropriate location of interior saddle (3) and tooth bar (20) worm and wormwheel (19) interlock, on transmission dish (2), be provided with the stop means that prevents that transmission dish (2) and worm and wormwheel (19) break away from, when guide rod (22) placed wall groove (17) to be bent downwardly, the correspondence position that tooth bar (20) contacts with worm and wormwheel (19) had the notch (23) that adapts with worm and wormwheel (19) shape.

8. core of disk as claimed in claim 7, it is characterized in that: on the housing (27) of socket (1) both sides, be provided with wall (16), guide rail is the wall groove (17) that has on the wall (16), guide rod (22) places transmission dish (2) on the position of wall (16), guide rod (22) stretches into wall groove (17), rear end in wall groove (17), wall groove (17) seamlessly transits bending downwards.