JPH0636299B2 - Flotpie disk liner-cutting and feeding method - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a liner cutting and feeding method for a floppy disk, in which a magnetic disk is built in a hard shell via a liner.

[Prior art]

The inventor of the present invention aims to shorten the processing time for taking out and transferring the cut liner, and to
A liner cutting and feeding system shown in the figure has been developed (JP-A-61-14895). The die 16 for punching the outer periphery of the liner sheet material shown in this figure has a through hole having the same shape as the outer periphery of the liner 17 opened. A disk-shaped liner 17 punched in a sharp direction with a mold 16.
Is taken out of the mold through the through hole of the mold. Therefore, the transfer arm 18 for transferring the liner 17 can wait for the opening of the through hole of the mold to punch the liner tape and then immediately transfer the liner tape to the second punching position without opening the mold. That is, the method of punching the liner tape by this method and transferring it to the next step is
The time for opening the mold and feeding the transfer arm 18 therebetween can be omitted. Also, in the second punching step, since the center hole is punched, the transfer arm 18 can stand by at a position where the liner 17 can be moved immediately after the punching, and this can suck the upper surface of the liner and transfer it to the next step.

[Problems to be Solved by the Invention]

However, this method has a drawback that it is difficult to cut the liner with high accuracy because the die structure becomes complicated and the outer circumference and the inner circumference of the liner are cut twice by separate dies. is there. The present inventor has developed a method of cutting the liner once in order to solve this drawback. In this method, a member for taking out the liner from the mold is used so that the cut liner 17 is adsorbed by the lower mold 19 as shown in FIGS. 19 to 23 so that the liner can be directly transferred to the shell.
This was adsorbed on the lower surface of the extraction adsorption member 20 and transferred to the upper surface of the shell 3. However, this method has a problem in transferring the liner tape. That is, the cut liner tape needs to be positioned and held on the lower surface of the upper mold 21 as shown in FIG. 19. However, in this state, the liner tape is moved to the position of the liner tape. Mold 21
Cannot be adsorbed on the bottom surface of. Therefore, it is necessary to pull and hold the liner tape with a predetermined tension by the transfer rolls 22 on both sides of the mold. However, when the liner tape with the punched out center is tensioned and pulled, the liner tape is deformed into a corrugated shape and has a flat shape. I can no longer hold the state. For this reason, the liner tape cannot be properly held in place on the upper mold, and if the liner tape is sandwiched between the molds in a corrugated state, the liner tape will be wrinkled and partially folded over There was a defect that it could not be cut into a perfect shape. Further, in this method, since the liner is taken out from the mold by the take-out adsorption member and transferred to the shell, it takes time for the take-out adsorption member to send the liner from the die to the shell, and the processing capacity per hour is reduced. There was a flaw. Further, Japanese Patent Laid-Open No. 62-57184 describes a method of punching out a liner tape with a mold, adsorbing the cut liner on the lower surface of the mold and taking it out of the mold. In the liner cutting and feeding method described in this publication, the liner punched out by the die is adsorbed by the adsorption head and taken out from the die. The suction head is inserted into the through hole of the lower mold in order to suck the punched liner. The upper die is pushed into the through hole of the lower die, and the cut liner is adsorbed on the upper surface of the adsorption head. The suction head pulls out the liner from the through hole of the lower mold and transfers it to the next step. The method of cutting the liner by this method shortens the life of the mold. This is because the upper die needs to be deeply inserted into the through hole of the lower die in order to transfer the cut liner to the suction head which is a member different from the die. In a die that inserts the upper die deeply into the through hole of the lower die and cuts the liner tape, the outer surface of the upper die and the inner surface of the through hole of the lower die slide and the sliding surface wears. . The sliding surface is worn, and a mold with a gap between the outer periphery of the upper mold and the through hole of the lower mold is
Polishing the cutting blade to improve sharpness is almost impossible. A mold having a gap between the outer periphery of the upper mold and the through hole of the lower mold cannot be reliably cut because it is caught in the gap of the liner tape even if the cutting edge is ground. Unfortunately, the liner of the floppy disk is made of a very fine fibrous nonwoven fabric. In order to reliably cut fine fibers, it is necessary to make the gap between the upper mold and the lower mold extremely narrow. If the sliding surface of the mold wears and a gap is created between the sliding faces of the upper mold and the lower mold, and this gap becomes wider than the fibers of the non-woven fabric, the mold will secure the fibers of the non-woven liner tape. Can not be cut into. Moreover, the fine fibers of the liner tape are not reliably cut.When the liner is fed to the shell of the floppy disk, the fine fibers that are not securely cut are separated from the liner, which may cause a reading error of the floppy disk. Become. For this reason,
It is extremely important for the liner used for the floppy disk to surely cut the fine fibers of the non-woven fabric. However, the conventional method of moving the liner cut with a mold to another member and transferring it is that the liner tape breaks down as the mold is used and the mold cannot be polished, so the running cost of the mold is low. Has the drawback of being significantly higher. The present invention was further developed with the object of solving this drawback, and an important object of the present invention is that the liner tape can be cut into an accurate shape, the processing time is shortened, and the liner can be shelled efficiently. Another object of the present invention is to provide a liner cutting and feeding method for a floppy disk that can be transferred and that can extend the life of the mold.

[Means for Solving the Problems]

The method for cutting and supplying a liner of a floppy disk of the present invention comprises a cutting step of sandwiching a long and narrow tape-shaped liner tape with a mold to cut it into a predetermined disc-shaped liner, and a liner cut by this mold. And a transfer step of transferring to the shell of the floppy disk. In the cutting process, the die is arranged so that the sandwich cutting section is horizontal or almost horizontal, and along the upper surface of the lower die,
Alternatively, transfer the liner tape along this neighborhood,
The punched and cut liner is adsorbed and held on the upper surface of the open upper mold. In the transfer process, the take-out suction member is sent to the lower surface of the opened upper die, the liner on the lower surface of the upper die is sucked onto the upper surface of the take-out suction member, and then the take-out suction member is moved to the upper and lower molds. From the space to an external relay position, and at the relay position, the liner that has been adsorbed on the upper surface of the suction adsorption member is adsorbed on the lower surface of the secondary transfer member, and the liner is attached to the upper surface of the shell with the secondary transfer member facing upward. To transfer.

[Action]

The liner transfer method of the present invention will be described below with reference to FIGS. 1 to 7 showing a preferred embodiment thereof. The long and narrow sheet-shaped liner tape 1 is placed on the lower mold 5, or the liner tape which is moved close to this is stopped and sandwiched between the molds 4 and 5 to cut the liner (FIG. 2). . The molds 4 and 5 are opened, and the cut liner 2 is adsorbed on the lower surface of the upper mold 4 (FIG. 3). The take-out suction member 13 is sent to just below the upper mold 4, and the liner 2 is transferred from the upper die 4 to the upper surface of the pick-up suction member 13 (FIG. 4). The extraction suction member 13 moves out of the molds 4 and 5 to the relay position, the secondary transfer member 14 is positioned directly above the extraction suction member 13, and the liner 2 is transferred from the upper surface of the extraction suction member 13 to the secondary transfer position. It is transferred to the lower surface of the member 14 (Fig. 5). The secondary transfer member 14 carries the liner 2 directly above the shell 3 (FIG. 6) and then descends to bring the liner 2 into the shell 3
Then, the liner 2 is fixed to the upper surface of the shell 3.

[Preferred embodiment]

An embodiment of the present invention will be described below with reference to the drawings. However, the examples described below exemplify the method for embodying the technical idea of the present invention, and do not specify the method of the present invention to the following method. The method of the present invention is subject to various modifications within the scope of the claims. The punching process of the liner tape 1 shown in FIGS. 1 and 2 is shown, and FIGS. 3 to 7 show the process of transferring the punched and cut liner 2 to the shell 3. For the liner tape 1, for example, a non-woven fabric is used, which is sandwiched by the upper and lower molds 4 and 5 shown in FIG. 8 and punched and cut. In the mold of FIG. 3, the lower mold 5 is fixed to the base 6,
The upper die 4 descends and cuts the liner tape 1 into a disc shape. As shown in FIG. 9, the lower mold 5 has a horseshoe-shaped convex portion whose upper surface is flat so that the horseshoe-shaped liner 2 which is circular and partially cut off can be cut. Inside and outside of the lower mold, there are provided support bases 7 that are pushed down by the upper mold when the upper mold descends. The support base 7 is arranged so as to be vertically movable with respect to the lower mold 5, and is pressed by a pressing spring 8 from below. The lower surface of the upper mold 4 is flat, and the horseshoe-shaped portion of the lower mold is fitted into the upper mold 4, so that the liner tape 1 can be sandwiched between the upper and lower molds 4 and 5 and cut into a circle. 9 is provided. The fitting groove 9 is provided with a support base 7 that is pushed up by a lower mold and moves upward. The support base 7 is similar to the support base of the lower mold, and the push spring 8
Pressed with. The upper mold 4 is fixed to the lower surface of the upper and lower base 10, and the upper and lower rods 11 are fixed to both sides of the upper and lower base 10. Although not shown, the upper and lower rods 11 vertically penetrate the base, and the upper and lower bases 10 move in parallel up and down via the upper and lower rods 11 to cut the liner tape 1. Air holes 12 for adsorbing the liner 2 and the liner tape 1 are formed in the upper mold support 7 and the lower mold 5. Although not shown, the air hole 12 is connected to an air source via an on-off valve and a hose, and when the on-off valve is opened, the liner 2 and the liner tape 1 are adsorbed. The lower die 5 sucks the liner tape 1 when the upper die 4 descends after the liner tape 1 is transferred, and prevents the liner tape 1 from being displaced during cutting. The support base 7 provided on the upper mold 4 attracts the cut liner to the lower surface when the upper mold is lifted and the mold is opened. That is, as shown in FIG. 1, the liner tape 1 is moved in contact with or close to the sandwich cutting section of the upper surface of the lower mold 5 with the molds 4 and 5 opened. After that, as shown in FIG. 2, the molds 4 and 5 are closed and the liner 2 is punched and cut. The cut liner 2 is sucked on the lower surface of the upper mold 4 by opening the molds 4 and 5 as shown in FIG. After that, as shown in FIG. 4, the take-out suction member 13 enters right under the upper die 4, and the liner 2 adsorbed on the lower surface of the upper die is sucked on the upper surface of the take-out suction member 13. When the liner 2 is transferred from the lower surface of the upper die 4 to the upper surface of the ejection suction member 13, the support base 7 of the upper die 4 releases the suction state of the liner 2, and then the ejection suction member 13 suctions the liner 2. Good to do. Therefore, although not shown, the extraction and adsorption member 13 has an air hole 12 for adsorbing the liner 2 on the upper surface like the air hole of the mold, and this air hole 1
2 is connected to an air source via an on-off valve and a hose. The movement trajectory of the extraction suction member 13 moves horizontally from the outside of the mold to enter below the upper mold 4, and then rises until the upper surface comes into contact with the liner 22 sucked by the upper mold 4. Is the best. In this state, the extraction suction member 13 that penetrates into the lower surface of the upper mold 4 can suck the liner 2 at a correct position reliably and without displacement. However, it is also possible to move the extraction suction member 13 horizontally so that the suction suction member 13 can enter directly below the upper mold 4 without being raised. In this case, the extraction suction member 13 that has entered right below the upper mold 4 cannot press the upper surface against the lower surface of the liner 2 that is sucked onto the lower surface of the upper mold 4, but the upper mold 4 does not have the liner. After releasing the suction state of No. 2, the take-out suction member 13 sucks the liner 2, so that the liner can be transferred from the upper mold 4 to the take-out suction member 13. As shown in FIG. 5, the take-out suction member 13 sucks and holds the liner 2 on the upper surface thereof, and moves out of the mold to the relay position. At this time, when the pickup suction member 13 sucks the liner 2 on the upper surface while the upper surface is pressed by the liner 2, the suction suction member 13 slightly descends or moves upward so that the sucked liner 2 does not contact the upper mold 4. After the mold is slightly elevated, it moves horizontally to transfer the liner 2 to the relay position. Extraction adsorption member 13
Is not pressed by the liner, the take-out suction member 13 and the upper mold 4 can move horizontally without moving in the vertical direction, and the liner 2 can be moved from the mold to the relay position. At the relay position, the secondary transfer member 14 is located directly above the extraction suction member 13. The secondary transfer member 14 has an air hole 12 for adsorbing the liner 2 on the lower surface thereof, like the upper surface of the extraction and adsorption member 13. When the liner 2 is transferred from the extraction suction member 13 to the lower surface of the secondary transfer member 14,
The extraction suction member 13 releases the suction state of the liner, and then the secondary transfer member 14 suctions the liner 2. Even at the relay position, the extraction suction member 13 rises or the secondary transfer member 14 descends to press the lower surface of the secondary transfer member 14 against the upper surface of the liner to remove the liner 2 from the extraction suction member 13. By transferring the liner to the secondary transfer member 14, the liner can be accurately transferred from the extraction suction member 13 to the secondary transfer member 14 without displacement. However, it is also possible to transfer the liner 2 from the extraction suction member 13 to the secondary transfer member 14 in a state where the upper surface of the extraction suction member 13 and the lower surface of the secondary transfer member 14 are close to each other. Therefore, the extraction suction member 13
Before transferring the liner 2 from the secondary transfer member 14 to the secondary transfer member 14, without removing either or both of the extraction suction member and the secondary transfer member in the vertical direction to press them against each other, the extraction suction member 13
It is also possible to transfer the liner 2 from the secondary transfer member 14 to the secondary transfer member 14. The liner 2 transferred to the lower surface of the secondary transfer member 14 at the relay position is the secondary transfer member 1 as shown in FIGS. 6 and 7.
4 moves above the shell 3 from the circle joint position, and then descends and is carried to the fixed position of the shell 3. With the secondary transfer member 14 pressing the liner 2 against the shell 3, a heating welding member (not shown) descends to a portion where the secondary transfer member 14 does not press the liner 2 to heat the liner 2 onto the shell 3. Weld. By the way, in the molds 4 and 5, after the extraction suction member 13 carries the liner to the outside, the mold is clamped to cut the liner 2 from the liner tape. Further, when the secondary transfer member 14 receives the liner 2 and carries it to the shell 3, the take-out suction member 13 can enter the opened molds 4 and 5 to take out the liner 2. That is, the mold 4,
5, the take-out suction member 13 and the secondary transfer member 14 can simultaneously perform the cutting and transfer processing of the liner without interfering with each other. The present invention is directed to the extraction suction members 13 and 2 for transferring the liner 2.
Although it does not specify the moving mechanism of the next transfer member 14. FIG. 10 shows an example of a moving mechanism for the take-out suction member 13 and the secondary transfer member 14. The pick-up and suction member 13 and the secondary transfer member 14 have an arm, and the rear end of the arm is fixed to a vertical rotary shaft 15 so that the arm itself can rotate in a horizontal plane, and the rotary shaft 15 rotates. It is supported freely. Although not shown, the pick-up and suction member 13 and the secondary transfer member 14 are rotated by a certain angle by a cylinder, a motor, a cam or the like to transfer the liner.
That is, the rotation angle of the pick-up and suction member and the length of the arm are determined so that the liner can be transferred from the mold to the relay position.
The rotation angle of the next transfer member and the length of the arm are determined so as to move the liner from the relay position to above the shell. A rotary shaft 15 to which the extraction suction member 13 and the secondary transfer member 14 are fixed is rotatably and vertically movably supported, and is vertically moved by a cylinder or the like, whereby the extraction suction member 13 is moved.
The secondary transfer member 14 can be moved up and down.

【The invention's effect】

INDUSTRIAL APPLICABILITY The liner cutting and feeding method of the present invention is capable of cutting the outer circumference and the inner circumference of the liner in one operation, and in addition, the liner tape is transferred along the upper surface of the mold or in the vicinity thereof, so that the liner tape is deformed. It has the feature that it can be transferred to a fixed position while preventing the liner and that the liner can be cut into an accurate shape. In addition, even though the take-out suction member is sent into the open mold and the liner is taken out from the mold, this take-out suction member does not transfer the liner to the shell, but only transfers it halfway. The time required for the member to transfer the shell can be shortened, and the throughput per hour can be improved. That is, since the process of removing the liner from the mold and the process of sending the liner taken out to the shell are divided, it is possible to improve the processing capacity per hour by simultaneously processing both processes in parallel. ing. Furthermore, the present invention divides the process of taking out the liner cut by the mold from the mold and the process of carrying it to the shell, and at this time, the liner adsorbed on the upper surface is sent to the lower surface of the sandwiching piece. Therefore, even if the liner tape is moved close to the lower die, in other words, even if the cut liner is adsorbed on the lower surface of the die, the ejecting adsorption member has an adsorption surface. Can be transferred to the secondary transfer member without turning it upside down.
By omitting the mechanism that vertically reverses the suction surface of the liner, the processing capacity can be improved with a simple structure. By the way, when the liner adsorbed on the lower surface of the upper die is adsorbed on the upper surface of the ejection suction member and taken out and the liner is transferred to the shell by this ejection suction member, the shell of the upper opening is opened unless the ejection suction member is turned upside down. Cannot transfer liner to. Further, a remarkable feature of the liner cutting and feeding method of the present invention is that the life of the mold is long and the liner tape of fine fibers can be reliably cut by repeatedly polishing the mold. This feature is realized by adsorbing the cut liner directly to the lower surface of the upper mold without adsorbing it to another member, opening the mold in this state, transferring it to the ejecting adsorbing member, and transferring it. It The method of adsorbing the cut liner on the surface of the upper mold does not require the upper mold to be deeply inserted into the lower mold. This is because the liner is adsorbed by the cut surface of the mold. A mold that can cut the liner tape without inserting it deeply can minimize the wear of the sliding surface. For a mold with less wear on the sliding surface, the lower surface of the upper mold and the upper surface of the lower mold can be ground flat to sharpen the cutting edge of the liner tape. Therefore, the method of the present invention for taking out the liner cut in this way can reduce wear of the sliding surface of the mold and thus has a long service life, and the mold can be easily surface-polished to improve sharpness again. Therefore, there is a feature that the life of the mold can be remarkably extended. In addition, since the mold can be cut sharply, there is a feature that the fine fibers of the liner tape can be reliably cut and incorporated into a floppy disk to effectively prevent a read error.

[Brief description of drawings]

1 to 7 are process diagrams of a method of cutting and supplying a liner of a floppy disk showing an embodiment of the present invention, FIG. 8 is a sectional view showing an example of a mold, and FIG. FIG. 10 is a plan view showing the liner, and FIG.
FIGS. 11 to 23 are plan views showing the motion state of the next transfer member, and FIGS. 11 to 23 are process diagrams showing the conventional liner filling state. 1 ... Liner tape 2 ... Liner, 3 ... Shell 4 ... Upper mold, 5 ... Lower mold 6 ... Base, 7 ... Supporting base 8 ... Push spring, 9 ... Fitting groove 10 …… Upper and lower pedestal, 11 …… Upper and lower rods 12 …… Air holes, 13 …… Extraction adsorption member 14 …… Secondary transfer member, 15 …… Rotary shaft 16 …… Mold, 17 …… Liner 18 …… Transfer arm , 19 ...... Lower mold 20 ...... Extraction adsorption member, 21 ...... Upper mold 22 ...... Transfer roll

Claims (3)

[Claims] 1. A cutting step of cutting both sides of an elongated tape-shaped liner tape with a mold to cut into a predetermined disc-shaped liner, and a transfer for transferring the liner cut with this mold to a floppy disk shell. In the method of cutting and supplying a liner of a floppy disk having a step, in the cutting step, the mold is arranged such that the sandwiching cross section of the liner tape is arranged horizontally or almost horizontally, and the liner tape is arranged along the upper surface of the lower mold or Transfer along this vicinity, adsorb the punched and cut liner to the upper surface of the upper mold to open the mold, while in the transfer process of the liner, take it out to the lower surface of the opened upper mold. The suction member is sent in, the liner sucked on the lower surface of the upper mold is sucked onto the upper surface of this take-out suction member, and then the take-out suction member is sent out between the upper and lower molds to the external relay position. At the relay position, the liner that has been adsorbed on the upper surface of the ejection adsorbing member is adsorbed on the lower surface of the secondary transfer member, and the liner is transferred to the upper surface of the shell on which the secondary transfer member is placed upward. A method for cutting and supplying a liner of a floppy disk, which is characterized in that 2. Before the liner is transferred from the lower surface of the upper die to the upper surface of the pick-up and suction member, at least one of the upper die and the pick-up and suction member moves vertically so that the suction surfaces of the two approaches each other. 2. A method for cutting and supplying a floppy disk liner according to claim 1. 3. A method according to claim 1, wherein before the liner is transferred from the upper surface of the pick-up suction member to the lower surface of the mold, at least one of the pick-up suction member and the mold moves in the vertical direction so that the suction surfaces of both of them approach each other. The liner cutting and feeding device for a floppy disk according to item 1.