JPS6288599A - Liner punching feeder for magnetic disk cartridge - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is a liner that is used in the assembly process of a magnetic disk cartridge, in which a liner is formed by beating a nonwoven fabric, and the liner is positioned and supplied at a predetermined position on the inner surface of a case of a cartridge. This is related to the punching supply position.

(Conventional Gikai n Conventionally, a floppy disk has a disk-shaped base made of a flexible polyester sheet, etc., with a magnetic material 1 formed on both sides thereof, and a magnetic head performs magnetic recording on the magnetic layer while being rotated at high speed. It is widely used as a recording medium for computers due to its ease of handling and low cost.On the other hand, floppy disks have such advantages and the fact that the recording medium can be reused, which silver halide film does not have. Still cameras have also been proposed that take advantage of the unique advantages of magnetic recording and use roughly miniaturized floppy disks as image recording media.The magnetic disks used in these still cameras are small in diameter and extremely compact. A thin magnetic disk sheet is rotatably housed in a small hard case and is used as a magnetic disk car. This paper proposes a method for manufacturing such a magnetic disk unit.

A magnetic disk cartridge as described above is generally provided with a liner for removing dirt, dust, etc. attached to the surface of the magnetic disk sheet. Conventionally, this liner has been made of non-woven materials such as rayon and polyester blends.
It is made of i-cloth and is fixed to the inner wall surface of the case facing the magnetic disk sheet so as to lightly contact the surface of the magnetic disk sheet. Therefore, when the magnetic disk sheet is rotated, the entire surface of the sheet is cleaned by the liner, and the above-mentioned dirt, dust, etc. are removed.

Conventionally, the liner is formed by punching a nonwoven fabric using a die set, and then is manually placed at a predetermined position on the inner wall surface of the cartridge case in the magnetic disk cartridge assembly process, and then fixed at the predetermined position by, for example, heat welding. It was becoming like this. In order to improve the efficiency of magnetic disk cartridge assembly work, it is desirable to eliminate the manual processes described above, but the liner made from non-woven material is easily bent, and therefore the posture during handling is difficult. Therefore, it has been extremely difficult to automate the process from handling to feeding to the above-mentioned predetermined position.

(Object of the Invention) Therefore, an object of the present invention is to provide a liner punching and feeding device that can automatically position and feed a liner formed by punching from a nonwoven fabric as described above to a predetermined feeding position. It is something to do.

(Structure of the Invention) The magnetic disk cartridge liner punching and supplying device of the present invention uses the aforementioned die set in which a die is provided in the upper mold and a punch is provided in the lower mold. The liner holding part is provided with a through hole extending from the punch entry part of the die to the upper end of the upper die, and a liner holding part that can be entered from above and has an air suction hole at the lower end, and the liner holding part is connected to the punch. a moving means for moving within the through hole to a position close to the upper end surface, then moving the cartridge upwardly from the through hole, and then moving laterally to a predetermined supply position on a cartridge case placed substantially horizontally; An air suction pipe is provided which communicates with the air suction hole of the liner holding part, and when the lower end of the holding part is close to the upper end surface of the punch within the through hole, air is drawn so that the liner is attracted to the lower end of the punch. The apparatus is configured to include an air suction means that performs suction and then stops air suction when the holding section moves to the supply position.

(Function) If a die set in which the punch enters the die from below is used as described above, the punched liner will be surrounded by the die while the punch is in the die, and the liner will be surrounded by the die during punching and handling. It comes to be placed on the upper end surface of the punch while maintaining its posture. Therefore, when the punch is in the guide and the lower end of the liner holding part is close to the upper end surface of the punch, if the liner is attracted to the holding part, the liner will maintain its posture when being struck. It is held in this liner holding part as it is. Therefore, this liner holding part is described above.

When the liner is moved to the supply position and the air suction of the air suction means is stopped there, the liner is positioned and supplied from the liner holding portion to the case.

(Example) Hereinafter, the present invention will be described in detail based on an example shown in the drawings.

Fig. 1 shows the planar shape of a magnetic disk cartridge liner 8 handling and supply device according to an embodiment of the present invention (partially shown schematically), and Fig. 2 shows its side cross-sectional shape. . This liner 8 handling and feeding device is basically (
It is composed of a goose set 10, a liner holding section 30, a moving arm mechanism 50 as a moving means for moving the liner holding section 30 vertically and laterally, and an air suction means 70.

As shown in detail in FIG. 2, the gooey set 10 consists of an upper mold 12 to which a gooey 11 is fixed, and a lower mold 15 provided with a punch 13 and a stripper plate 14 that enter the die 11 from below. Between the upper mold 12 and the lower mold 15, as described above, a band-shaped nonwoven fabric 16 made of rayon, polyester blend, etc. is placed under tension. Therefore, the lower die 15 is raised by a known mechanism, and the stripper plate 14 is removed from the nonwoven fabric 16.
When the punch 13 enters the die 11 while holding the non-woven fabric 16 between it and the die 11, the nonwoven fabric 16 is temporarily punched according to the shape of the punch 13, and the liner 1 for magnetic disk cartridge is formed.
6a is formed.

The liner 16a formed by the apparatus of this embodiment is, for example, formed in the shape of a ring cut in half, as shown in FIG. The non-#1116 is pitch-fed from the left side to the right side in Fig. 1.2, and the punched liner 16a is discharged from the die set 10 as described later, and at the same time, the operation of the lower die 15 is repeated. , liners 16a are continuously formed one by one. Note that the upper die 12 is formed with a through hole 12a extending from the punch entry portion of the die 11 to the upper end of the upper die. The lower mold 15 is also provided with an air vent hole 17 whose one end opens to the upper end i3a of the punch 13 and the other end opens to the lower part of the lower mold 15.

The liner holding part 30 has a cylindrical upper part, and a lower part 35 which is approximately the same shape as the punch 13 and is slightly smaller than the punch 13, so that the lower part can descend into the through hole 12a of the upper die. ing. Further, as shown in FIG. 3 when the liner holding portion 30 is viewed from diagonally below, a number of air suction holes 32 are provided at the lower end 31, and these air suction holes 32 are arranged to open the inside of the liner holding portion 30. It communicates with a space 33 extending in the vertical direction.

As shown in FIG. 2, the moving arm mechanism 5G includes an arm 51, a vertical rod 52 that holds the arm 51 horizontally, and a vertical rod 52 that supports the rod 52 in a rotatable and rigid manner and is fixed to the device frame, etc. A pipe-shaped support 53 , a fixing member 54 fixed to the support 53 , and a fixing member 54 that is rotatably supported at the upper end of the rod 52 and connected to the rod 52 via a connecting member 55 . A rod receiver 56 is fixed to the fixed member 54, one end is connected to the rod receiver 56, and the other end is connected to the liner holding portion 30.
The connecting member 5γ is connected to the connecting member 5γ. The cylindrical portion of the liner holding portion 30 is rotatably housed within an outer cylinder 58 fixed to the tip of the arm 51.

Therefore, Orad 52 is around its long axis (in the direction of the arrow)
When the liner holding part 30 is rotated to
It is moved in the direction of arrow B in FIG.

One end of the connecting member 51 is rotatably supported by a rod receiver 56 via a pin 6G, and the other end is rotatably supported by a rod receiver 62 fixed to the liner holding part 30 via a pin 61. There is.

As shown in FIG. 1, the liner holding part 30 is attached with an air suction port 34 that communicates with the internal space 33, and a flexible air suction pipe 71 is connected to this suction port 34. . This air suction pipe 71 is communicated with a tank 73 via an on-off valve 72 made of, for example, a solenoid valve. The air inside this tank 73 is pumped by a vacuum pump 74.
, the inside of the tank is exhausted until it reaches a predetermined pressure below atmospheric pressure, and therefore the on-off valve 7
2 is opened, air is sucked through the air suction hole 32 at the lower end of the liner holding portion 30 through the air suction tube 71, the air suction port 34, and the space 33. That is, in this example, the air suction pipe 71, the on-off valve 72, the tank 73, and the vacuum pump 74 constitute the air suction means 70.

Next, positioning and supply of the liner 16a by the apparatus having the above configuration will be explained. As shown in FIG. 1, in this example, the case conveyance table 8 is
0 is installed, and the case 82 is conveyed in pitches on the conveyance table 80 by a conveyance means 81 that performs, for example, so-called shuttle conveyance. This case 82 is, for example, the lower case of the magnetic disk cartridge described above, and is placed on the carrier 80 with its inner wall surface 82a facing upward.

As described above, before the lower mold 15 of the die set 10 is raised, the rod 52 is rotated by a known driving means, so that the arm 51 is set to the position shown by the solid line in FIG. 1. At this time, the liner holding part 30 supported at the tip of the arm 51 is positioned above the die set 10, and the lower part 35 is aligned with and faces the punch 13. Next, the O-rad 52 is driven by the drive means to move the support 5
As a result, the liner holding portion 30 passes through the through hole 12a and is lowered to a position where its lower end 31 substantially contacts the nonwoven fabric 16. Thereafter, as described above, the lower die 15 is raised, the punch 13 enters the die 11, and the nonwoven fabric 16 is punched away. At this time, the rod 52 is pushed up, and the liner holding part 30 has its lower end 31 covered with the nonwoven fabric. The upper end surface 13a of the punch 13 is raised in contact with the upper end surface 13a of the punch 13 via the upper end surface 13a of the punch 13.

In order to handle the non-woven material 516, the punch 13 is raised within the die 11 to the position shown by arrow E in FIG. When detected by a device or the like, the on-off valve 72 is opened. Then, as described above, air is sucked through the air suction holes 32 of the liner holding part 30, so the liner 16a that has been beaten and placed on the bunch 13 is attracted to the lower end 31 of the liner holding part 30. If the air suction is started while the punch 13 is inside the die 11, the liner 16a is attracted to the liner holding part 30 while being surrounded by the die 11, so the liner 16a is always Liner holding part 30 in a constant posture
It will be transferred to.

In the above example, air suction is started when the upper end surface 13a of the punch 13 (that is, the lower end 31 of the liner holding part 30) reaches the position indicated by the arrow E in FIG. Air suction may be started from the time when the nonwoven fabric 16 is held between the lower end 31 of the liner holding portion 30 and the upper end surface 13a of the punch 13. In addition, before handling the nonwoven fabric 16, the liner holding part 3
0 remains in the state shown in FIG. 2, and after punching the nonwoven fabric 16, while the punch 13 is in the die 11, the liner holding part 30 is lowered to bring its lower end 31 close to the liner 16a on the punch 13. Then, the air suction may be started. In short, the liner holding part 3
The lower end 31 of the punch 13 is located within the d through hole 12a.
Air suction may be performed so that the liner 16a is attracted to the liner holding portion 30 when the liner 16a is close to the fi 13a.

Furthermore, since the nonwoven fabric 16 described above has extremely high air permeability, it is not necessary to provide air handling holes 17 in the punch 13, but if such air handling holes 17 are provided, the liner holding portion Even when the punch 13 and the punch 30 come into close contact with each other via the nonwoven fabric 16, the air suction is performed well, and the nonwoven fabric 16 is reliably attracted to the liner holding portion 30.

After the liner 16a is suction-held in a fixed posture by the liner holding part 30 as described above, the rod 52 is pushed up, and the liner holding part 3o pulls out the suction-held liner 16a upward from the through hole 12a. be raised to a certain position. Next, the rod 52 is rotated by a predetermined angle clockwise in FIG. 21, the arm 51 is rotated, and the liner holder 30 is moved to the position indicated by the two-dot chain line in FIG. 1 (supply position). This supply position is on one case 382 (the position indicated by arrow C in FIG. 1) which has been pitch-fed and stopped as described above. When the liner holding part 30 is moved to the supply position, the liner holding part 30 is rotated within the outer cylinder 58 by the action of the connecting member 57, and the liner 16a held by suction on the liner holding part 30 is is 90' from the punching position.
be rotated. Next, the rod 52 is lowered, and the liner holding section 30 is lowered to a position where it lightly presses the suction-held liner 16a onto the upper surface of the case 82, that is, the inner wall surface 82a. While the liner 16a is in contact with the inner wall surface 82a of the case 82, the heat welding heater 83 (see Fig. 1.4) for temporary attachment is lowered, and the heater 83 contacts the case 82 through the liner 16a. As a result, a part of the liner 16a is thermally welded to the case 82 and temporarily attached. As shown in FIG. 4, this heater 83 has a small claw portion 8 at its tip on the liner 16a side.
4, and the lower end 31 of the liner holding part 30
A minute portion of the liner 16a protruding from the housing is thermally welded to the case 82 by the claw portion 84.

When the liner 16a is temporarily attached as described above, the heater 83 is raised to its original position, and the on-off valve 72 is closed to stop air suction from the air suction hole 32, and at the same time, the rod 52 is The liner holding portion 30 is pushed upward and separated from the liner 16a. The rod 52 is then rotated counterclockwise in FIG. 1, thereby returning the liner holding portion 30 to the position indicated by the solid line in FIG. After that, the above-mentioned operation is repeated, and the liner 1 is punched out one by one from the nonwoven fabric 16.
6a is sucked and held by the liner holding part 30, and the case 82
It is positioned and supplied to a predetermined position on the top.

In the embodiment described above, the liner holding portion 30 is rotated within the outer cylinder 58 using the connecting member 57 depending on the relationship between the handling attitude of the liner 16a and the feeding attitude to the case 82. Of course, it is also possible to appropriately set the conveying direction of the nonwoven fabric 16, the mounting direction of the case 82, and the rotation angle of the arm 51 so that it is not necessary to rotate the liner holding part 30 in this way.

Further, in the above embodiment, the liner 16a is held down on the case 82 by the liner holding part 30, and the liner 16a is temporarily attached by the heater 83 during this time, but the liner 16a is not temporarily attached. Once the liner 16a is pressed onto the case 82, the air suction may be stopped and the liner 16a may be simply transferred onto the case 82, or more generally, the liner 16a may be moved to a predetermined position on the case 82. Once this occurs, the air suction may be stopped and the liner 16a may be allowed to fall onto the case 82. However, if the temporary attachment as described above is performed, it is preferable to prevent the liner 16a from moving between the time the liner 16a is transferred to the case 82 and the time the case 82 is sent to the welding part for the present process. .

Roughly speaking, in the above embodiment, the moving arm mechanism 50 is used as a moving means for horizontally and vertically moving the liner holding part 30, but the moving means is not limited to such a moving arm mechanism. One constructed from known means may be used.

(Effects of the Invention) As described above in detail, according to the magnetic disk cartridge liner 8 handling and supplying device of the present invention, the liner formed by punching out a nonwoven fabric is automatically and accurately placed in a predetermined position in the cartridge case. Since it is possible to position and supply the liner, it is possible to automate the liner assembling process, which conventionally had to be done manually, in the magnetic disk cartridge assembly process, and the productivity of the magnetic disk cartridge is greatly improved.

[Brief explanation of drawings]

1 and 2 are respectively a plan view and a sectional side view showing an apparatus according to an embodiment of the present invention, FIG. 3 is a perspective view showing a part of the apparatus according to the embodiment described above, and FIG. 4 is a diagram showing the apparatus according to the embodiment described above. FIG. 10...Die set 11...Die 12...
・Upper die 13...Punch 13a...Upper end surface of punch 15...Upper die 16・L・Nonwoven fabric
16a...Liner 30...Liner holding part 31...Lower end of liner holding part 32...Air suction hole 35...Lower part 50 of liner holding part...Moving arm mechanism 51...Arm 52 ···rod
53...Support 70...Air suction means
71...Air suction pipe 72...Opening/closing valve
73...Tank 74...Vacuum pump 82...Magnetic disk cartridge case 2nd cause

Claims (2)

[Claims] (1) Equipped with a die set consisting of an upper die to which a die is fixed and a lower die to which a punch is fixed, a nonwoven fabric placed between the two dies is punched out by the die and punch to form a liner for a magnetic disk cartridge. In the forming apparatus, the upper mold is provided with a through hole extending from the punch entry portion of the die to the upper end of the upper mold, and a liner that can enter the through hole from above and has an air suction hole at the lower end. The liner holding portion is moved within the through hole to a position close to the upper end surface of the punch, and then pulled out of the through hole upwardly, and then placed on a cartridge case placed approximately horizontally. a moving means for laterally moving the liner to a predetermined supply position; and an air suction pipe communicating with the air suction hole of the liner holding part, when the lower end of the holding part is close to the upper end surface of the punch within the through hole. and an air suction means for sucking air so that the liner is attracted to the lower end thereof, and then stopping air suction when the holding part moves to the supply position. Device. (2) The moving unit lowers the liner holding unit from the supply position to a position where it presses the liner adsorbed at its lower end onto the case, and the liner is moved onto the case. 2. The liner punching and supplying device for a magnetic disk cartridge according to claim 1, further comprising temporary attachment means for temporarily attaching the liner to the case while being pressed.