JP2769913B2 - Tape joining device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention joins the free ends of one magnetic tape (hereinafter, the free end includes the end face of the tape and the tape face near the same). The present invention relates to a tape joining apparatus suitable for application to a magnetic tape joining apparatus for creating an endless tape or joining one free end of two magnetic tapes to create one magnetic tape.

[Summary of the Invention] The present invention creates an endless tape by joining the free ends of one magnetic tape, or creates one magnetic tape by joining the free ends of two magnetic tapes. In a tape joining apparatus suitable for application to a magnetic tape joining apparatus or the like, a long adhesive tape is run on a traveling path, drawn out for a predetermined length, and then cut to obtain an adhesive tape piece, which is joined by the adhesive tape piece. A tape joining device for joining free ends of a tape, the tape joining member being disposed on a traveling path of the adhesive tape and having an opening formed therein, and being movable in the traveling direction of the adhesive tape within the opening. And a tape feeding member provided with a suction surface for sucking the adhesive tape. The tape feeding member is moved while the adhesive tape is sucked by the suction surface of the tape feeding member. By moving the adhesive tape, the adhesive tape is caused to travel on the tape guide member and the adhesive tape is drawn out by a predetermined length, so that an adhesive tape having a relatively small rigidity and a relatively thin thickness can be accurately and reliably sent out. It is like that.

Further, in the present invention, in such a bonding device, at least while the adhesive tape is running on the tape guide member, a blower for sending air to the adhesive tape side is provided, so that the adhesive tape is used for the tape guide member. This allows the vehicle to run more smoothly.

2. Description of the Related Art As a tape joining apparatus, for example, a magnetic tape joining apparatus is known. This magnetic tape joining apparatus prepares a predetermined length of an adhesive tape piece, and connects the free ends of one magnetic tape to each other. With an adhesive tape piece of a predetermined length to produce an endless tape, or by joining the free ends of two magnetic tapes with the adhesive tape piece of a predetermined length to produce one magnetic tape. is there.

In this case, the adhesive tape piece is usually obtained by being pulled out from the long adhesive tape by a predetermined length and cut. As a conventional technique for obtaining such an adhesive tape piece, a "tape joining mechanism" disclosed in Japanese Patent Application Publication No. 58-500116 can be cited. As shown in FIG. 6A, this tape joining mechanism
A long adhesive tape (52) wound around 1), a moving block (55) having a suction surface (54) formed with a plurality of suction holes (53), and a plurality of suction holes (56) And a fixed block (58) having an attraction surface (57) formed with.

Next, the operation of the tape joining mechanism will be described. First,
Air is sucked into the fixed block (58) from the suction hole (56) of the fixed block (58), and the adhesive tape (52) is pulled out from the reel (51) and adhered as shown in FIG. 6B. The head (52A) of the tape (52) is sucked and fixed to the suction surface (57) of the fixing block (58). In FIGS. 6B to 6D, only the suction holes during suction are shown by dots.

Next, the moving block (55) is moved by a predetermined length l in the direction X of the reel (51). After the predetermined length 1 has been moved, air is sucked into the suction hole (53) of the moving block (55) into the inside thereof, so that the adhesive tape (52) is sucked on the suction surface (54). Adhesive tape (5)
The adsorption of 2) is stopped (see FIG. 6C).

Next, the moving block (55) is moved by a predetermined length l in the direction -X of the fixed block (58), whereby the adhesive tape (5
The leading end (52A) of the adhesive tape (52) slides on the suction surface (57) of the fixed block (58) that is not performing the suction operation, as shown in FIG. 6D. ) Is drawn out.

Then, the leading portion (52A) of the predetermined length 1 is cut by a cutter (not shown), whereby the adhesive tape piece (56) of the predetermined length 1 can be obtained. It is stated that the free ends of the tapes to be bonded, which are positioned and fixed on a not-shown bonding table, can be bonded using the adhesive tape pieces (56) obtained in this manner. In this connection, a step corresponding to the thickness of the adhesive tape piece (59) is formed.

[Problems to be Solved by the Invention] Such a tape joining device is used, for example, when joining a tape incorporated in a cassette such as an audio tape cassette. This is for joining a so-called leader tape to a magnetic tape for recording. In most cassettes, since this joining portion does not run inside the recording / recording / playback apparatus in which the cassette is mounted, the restriction on the step formed by the adhesive tape piece at the tape joining portion is loose. Adhesive tapes that are relatively thick and therefore generally rigid can be used.

On the other hand, for example, in a device running in a device having a recording / recording / reproducing unit in which a tape to be bonded is joined endlessly, a tape joining unit having a step is, for example,
When traveling on the magnetic head portion, traveling on the capstan portion, or traveling on the tape guide or the like, there is a problem that unnecessary vibration is generated in the apparatus due to the traveling of the tape joint. Therefore, in order to minimize this problem, there is a demand for using a relatively thin adhesive tape having a small rigidity. This is because, by suppressing unnecessary vibration, the speed of a magnetic transfer device that transfers and records a magnetic signal from a master tape to a slave tape can be increased.

However, in the conventional tape joining mechanism shown in FIGS. 6A to 6D, the thickness is small, for example, 10 μm.
When an adhesive tape of about m is applied, the adhesive tape (52) adsorbed on the adsorbing surface (54) of the moving block (55) shown in FIG. Then, the adhesive tape (52) falls into the space S (see FIG. 6C) between the moving block (55) and the fixed block (58), and is caught between them.
There is a disadvantage that 2) cannot be pulled out (sent out) by a predetermined length l.

The present invention has been made in view of such a point, and an object of the present invention is to provide a tape joining device that can apply a relatively thin adhesive tape having a relatively small rigidity.

[Means for Solving the Problems] In the tape joining apparatus of the present invention, for example, as shown in FIGS. 1 to 4, a long adhesive tape (6) is run on a running path and pulled out a predetermined length l. Thereafter, cutting is performed to obtain an adhesive tape piece (41), and in the tape joining apparatus for joining the free ends (43A) and (44A) of the tapes to be joined (43) and (44) with the adhesive tape piece (41), A tape guide member (2) arranged on a traveling path of the adhesive tape (6) and having an opening (11) formed therein;
A tape feed member (7) movably disposed in the running directions E and F of the tape feed member (7), and having a suction surface (7A) for sucking the adhesive tape (6). By moving the tape feed member (7) while the adhesive tape (6) is being sucked by the suction surface (7A), the adhesive tape (6) is caused to travel on the tape guide member (2), The adhesive tape (6) is drawn out by a predetermined length l.

In addition, the present invention provides a blower (32) in such a bonding apparatus that sends air to the adhesive tape (6) while at least the adhesive tape (6) is running on the tape guide member (2). It is provided.

[Operation] Since the present invention is configured as described above, when the long adhesive tape (6) is to be pulled out by a predetermined length, the adhesive tape (6) is attached to the suction surface (7A) of the tape feeding member (7). The adhesive tape (6) is moved on the tape guide member (7) by removing the opening (11) from the surfaces (2A) to (2A) by moving the tape feed member (7) in a state where the tape feed member (7) is sucked.
Since the adhesive tape (6) is guided and sent by C), even the adhesive tape (6) having a relatively small thickness and a small rigidity can be smoothly sent to a position where the next step, for example, a cutting step is performed.

Further, the present invention provides an air blower (32) for sending air to the adhesive tape (6) side at least while the adhesive tape (6) is running on the tape guide member (2). (6) can run more smoothly on the tape guide member (2).

[Embodiment] The first embodiment of the tape joining apparatus of the present invention will be described below.
This will be described with reference to FIGS.

1 to 3 show the configuration of the tape joining apparatus in this embodiment. FIG. 1 is a plan view, FIG. 2 is a side view of FIG. 1, and FIG. FIG. 3 is a schematic sectional view partially omitted from line III.

In FIG. 1, (1) is a substrate, and a shaft (14) is fixed to the substrate (1). A reel (5) is rotatably held on the shaft (14). On this reel (5), a long adhesive tape (6) having a relatively thin wall thickness (about 10 μm in this embodiment) is attached with a shaft (14).
It is wound so that it faces the direction of. The substrate (1) is provided with a tape guide member (2) (see FIG. 3) having a substantially arc-shaped and channel-shaped cross section, which also serves as a traveling path for guiding and running the adhesive tape (6). ing. The tape guide member (2) has a running path (2A) as a bottom portion and inner portions (2B) and (2C). An opening (11) is formed in the channel-shaped bottom of the tape guide member (2). As can be seen from FIG. 2, the opening (11) has a diameter L in the traveling direction of the adhesive tape (6) larger than a diameter W in a direction perpendicular to the traveling direction and a direction L perpendicular to the traveling direction. The diameter W is smaller than the width of the adhesive tape (6), and is formed as a so-called elongated hole. Therefore, the bottom surface of the tape guide member (2) from which the opening (11) is removed forms a traveling path (2A) on which the adhesive tape (6) travels.

Further, the adhesive tape (6) of the tape guide member (2)
A fixing portion (3) for adsorbing and fixing the adhesive tape (6) is integrally formed on the downstream side in the traveling direction of the device. In the fixing portion (3), a hole (8) for sucking the adhesive tape (6) is provided on the suction surface (3A), and an intake hole (9) communicating with the hole (8) is provided. A vacuum source (not shown) is connected to the hole (9). By operating this vacuum source, air is sucked through the suction hole (9) and the adhesive tape (6) is sucked by the hole (8) to the suction surface (3A) which also serves as the traveling path of the fixed portion (3). It is configured.

A shaft (10) is further fixed to the substrate (1), and a lever (7) as a tape feed member is mounted around the shaft (10) as a rotation center. A suction portion (7A) is formed on an end surface portion of the lever (7), which is formed in a substantially arc shape in the direction of the tape guide member (2), and this end surface suction portion (7A) is shown in FIG. As shown in the figure, the inside of the opening (11) can be smoothly moved in the directions of arrows E and F (see FIG. 1) inside the opening (11). The rotational movement range of the lever (7) is such that, in the direction of the arrow E, the one end (12) of the opening (11) corresponds to the portion of the lever (7) corresponding to the end suction portion (7A) of the lever (7). Of these, the end (7B) in the arrow direction E is limited by the abutment, and the other end (1) of the opening (11) is restricted in the arrow direction F.
3) the corresponding part of the lever (7) (the lever (7)
(The end (7C) in the direction of the arrow F in the end surface suction portion (7A))
Will be in a limited range. The arc-shaped operating range of the lever (7) regulated by one end (12) and the other end (13) of the opening (11) is set to a length for feeding the adhesive tape (6) by a predetermined length l. Have been equal. Also, the opening (11) is slightly smaller than the running path (2A).
A hole (15) communicating with the suction hole (16) is formed in the end surface suction portion (7A) of the lever (7) coming out, and as described later, the adhesive tape (6) is used when necessary. It can be held by suction.

As shown in FIG. 1, the stud (1) is attached to the lever (7).
7) is provided, while the substrate (1) also has studs (18)
Is provided. And the studs (17) (18)
A spring (19) is attached between them, and the lever (7) is pulled in a substantially arrow direction E by the spring (19), so that one end (7B) of the end surface suction portion (7A) of the lever (7). Is in contact with one end (12) of the opening (11) as described above.

An operating portion (20) is integrally provided at the other end (upward in FIG. 1) of the lever (7). This working part (2
The rod (22) of the cylinder (21) fixed to the substrate (1) is abutted on 0). When the cylinder (21) is operated, the rod (22) advances in the direction of the arrow G, the operating part (20) is pushed, and the lever (7) moves the shaft (10) against the tension of the spring (19). The lever (7) is rotated about the center in the direction of arrow F, and the lever (7) stops when the other end (7C) of the end surface suction portion (7A) hits the other end (13) of the opening (11). .

As shown in FIG. 2, a bracket (23) is fixed to the back surface of the substrate (1). The cylinder (24) is attached to the bracket (23). The cylinder (24) has a rod (25) to which a cutter (26) is attached at the tip and which can move forward and backward in the directions of arrows J and I.
The rod (25) is prevented from rotating. The cutter (26) integrally attached to the rod (25) passes through the rectangular opening (27) provided in the substrate (1) as the rod (25) advances in the arrow direction I. Then, as described later, the adhesive tape (6) positioned and fixed at a predetermined position is cut. The adhesive tape (6) is cut at the position of the left end (3B) of the fixing part (3).

An adhering block (4) is provided adjacent to the fixing part (3). The sticking block (4) has a suction surface (4A), and the suction surface (4A) has a plurality of holes (28) communicating with the suction holes (29). The sticking block (4) is attached to a rod (31) of a cylinder (30) fixed to the substrate (1), and is capable of moving forward and backward in directions M and K indicated by arrows. This rod (31) is also prevented from rotating. By operating the cylinder (30), the adhesive block (4) that has already been cut into the predetermined length 1 by the cutter (26) and holds the adhesive tape piece that has been suction-fixed to the suction surface (4A) of the adhesive block (4). ) Is moved to the tape joining position (described later) provided at a predetermined position by the advancing operation of the rod (31) in the arrow direction M.

A blower (32) having a blower hole (33) is attached to the lower right portion of the substrate (1) in FIG. 1, and at least an adhesive tape (33) is formed through the blower hole (33) of the blower (32). 6) blows air α in the direction of the arrow toward the adhesive tape (6) while traveling on the tape guide member (2). In particular, the tip (6B) of the adhesive tape (6) is a tape guide member (2).
Inside surface (2B) (2C), running path (2A), suction surface (3A)
This is in order not to separate from the space portion (channel-like internal space) formed by (1) and (2).

Next, the operation of the above embodiment will be described in detail. FIG. 4A
Is a diagram showing a ready state, in which the end surface suction portion (7A) of the lever (7) is on the left end side in the running direction E in the drawing due to the tensile force of the spring (19). In this state, the adhesive tape (6) is pulled out from the reel (5) such that the adhesive tape (6) is guided to the traveling path (2A) of the tape guide member (2). ) Reaches the position of the left end portion (3B) of the fixing portion (3) in the drawing, the drawing operation is finished, and the air is sucked through the suction hole (9) of the fixing portion (3).
The suction surface (3) formed on the fixing portion (3) having the hole (8)
A state in which the adhesive tape (6) is fixed by adsorbing the leading end (6A) of the adhesive tape (6) to (A). The operation of this embodiment up to the preparation state is performed by manual operation, but can be easily automated by using a motor, a sensor, a microprocessor, and the like (not shown). Further, the operations described below can be easily automated. In the preparation state shown in FIG. 4A, the intake holes (1) other than the intake hole (9)
6) and (29) are in a non-suction state.

In the state shown in FIG. 4A, the operating portion (20) of the lever (7) is pushed by operating the cylinder (21) and moving the rod (22) in the direction of the arrow G, and the lever (7) The end face (7C) side of the end face suction part (7A) of the arrow direction F
, And stops by hitting the other end (13) of the opening (11) formed in the tape guide member (2) (see FIG. 4B and FIG. 2).

Then, air is sucked from the suction hole (16) formed in the lever (7), and the adhesive tape (6) is suction-held on the end surface suction portion (7A) through the hole (15) formed in the end surface suction portion (7A). I do. Next, air α is blown from the air holes (33) of the air blower (32) toward the leading end (6A) of the adhesive tape (6), and is sucked by the air holes (9) of the fixed portion (3). The operation is stopped, and the suction of the leading portion (6A) of the adhesive tape (6) sucked through the hole (8) is released. Therefore, the leading end (6A) of the adhesive tape (6) is a free end, but can maintain the state of being in contact with the suction surface (3A) by the air α.

In this state, when the operation of the cylinder (21) is released, the end surface suction portion (7A) of the lever (7) has an adhesive tape (6) whose leading end (6B) is a free end due to the pulling force of the spring (19). ) Is adsorbed and the adhesive tape (6) is fed along the running path (2A) in the direction of the arrow E. In this case, the adhesive tape (6) is pressed against the traveling path (2A) by the air α, and is regulated by the inner side surfaces (2B) and (2C) of the tape guide member (2), so that the adhesive tape (6) is accurately sent out in the arrow direction E. It is. The tip (6B) of the adhesive tape (6) passes from the suction surface (3A) to the left end (4B) after passing over the suction surface (4A) of the attaching block (4) (see FIG. 4C). ).

In this case, as described above, the arc-shaped operation range of the end surface suction portion (7A) of the lever (7) is set equal to the length for feeding the adhesive tape (6) by the predetermined length l. ) From the tip (6B) to the left end (3
The length up to A) is equal to the predetermined length l.

In the state of FIG. 4C, air is suctioned from the suction hole (9) of the fixing portion (3), and the adhesive tape (6) is sucked to the suction surface (3A) through the hole (8). In addition, the air is sucked through the suction hole (29) of the sticking block (4), and the head (6A) of the adhesive tape (6) is sucked to the suction surface (4A) through the hole (28). Further, the blowing of the air α from the hole (33) of the blower (32) is stopped.

Next, the cylinder (24) is operated to move the rod (25) in the direction of the arrow I, so that the suction surface (4A) of the attaching block (4) and the suction surface (3A) of the fixing portion (3) are moved. The stretched adhesive tape (6) is cut by the cutter (26) (see FIGS. 4D and 2). Immediately after cutting the cylinder (2
4) is released, the rod (25) is retracted in the arrow direction J. The adhesive tape piece (41) from which the adhesive tape (6) has been cut to a predetermined length 1 is suction-held on the suction surface (4A) of the sticking block (4).

Then, as shown in FIG. 4E, the cylinder (30) is operated to move the rod (31) in the direction of the arrow M in a state where the adhesive tape piece (41) is attracted to the attracting surface (4A). In this case, a sticking stand (42) is disposed at the tape joining position in the advancing direction of the sticking block (4), and the magnetic tapes (43) and (44) to be joined are freely placed on the sticking stand (42). The ends (43A) and (44A) are held in a state where they are almost abutted against each other. Therefore, when the adhesive surface side of the adhesive tape piece (41) is pressed between the free ends (43A) and (44A) of the magnetic tapes (43) and (44), the free ends (43A) and (44A) are joined together. Joined at (41). During the joining operation of the magnetic tapes (43) and (44), the suction from the suction hole (29) of the sticking block (4) is stopped.

After joining the magnetic tapes (43) and (44), the cylinder (3
When (0) is released, the rod (31) retreats in the arrow direction K, and the sticking block (4) returns to its original position as shown in FIG. 4F. Then, the suction from the suction hole (16) of the lever (7) is stopped, the suction operation of the adhesive tape (6) at the end surface suction portion (7A) is released, and the adhesive tape (6) is moved to the end surface suction portion. Open from (7A). In this state, the adhesive tape (6) is sucked to the suction surface (3A) through the hole (8) by the suction hole (9) of the fixing portion (3), so that the state is the same as the preparation state of FIG. 4A. Become.

Therefore, the tape joining operation can be continuously performed by repeating the operations of FIGS. 4A to 4F.

Thus, according to the above embodiment, the adhesive tape (6)
Is fed from the reel (5) to the attaching block (4) via the tape guide member (2) having a channel-shaped cross section, so that it can be reliably sent out without leaving the traveling path. In addition, the leading end (6A) of the adhesive tape (6) is pressed against the tape guide member (2) by the blower (32), so that it can be sent out more reliably. Moreover, due to the structure of the tape guide member (2), the valley of the running path leading to the attaching block (4) can be reduced to approximately the thickness of the cutter (26) as compared with the prior art. It is possible to use an adhesive tape (6) which is relatively thin and small in rigidity. Thus, for example, such relatively thin and rigid adhesive tapes (6) joined together,
Even if the endless tape runs in a device having a recording / recording / reproducing unit, the tape joining portion having a step is, for example, running on a magnetic head portion, running on a capstan portion, or a tape guide. When running on a tape, etc., unnecessary vibration generated in the device due to the running of the tape joining portion is extremely reduced. For example, speeding up of a magnetic transfer device for transferring and recording magnetic signals from a master tape to a slave tape Can be achieved.

FIG. 5 is a plan view showing the configuration of another embodiment of the tape joining apparatus of the present invention. It should be noted that in FIG.
Components corresponding to FIGS. 4A to 4F are denoted by the same reference numerals, and detailed description thereof will be omitted. In FIG. 5, (46)
Is a disk-shaped tape feed member, and a tape guide member (47) is formed in a shape corresponding to the tape feed member (46). The same operation as the lever (7) is performed by rotating the tape feed member (46) forward and backward at a fixed angle in the directions indicated by arrows E and F about the axis (48). The adhesive tape (6) drawn out from the above) is sent out to the application block (4) via the tape guide member (47). Note that such a forward / reverse rotation operation can be easily performed by using a motor or a rotary actuator.

In the example of FIG. 5, the same effect as in the above-described example can be obtained.

Note that the present invention is not limited to the above-described embodiment, but can adopt various configurations without departing from the gist of the present invention.

[Effects of the Invention] As described above, according to the present invention, when a long adhesive tape is pulled out for a predetermined length to obtain an adhesive tape piece, the tape that moves within the opening formed by the tape guide member. By moving the tape feed member while the adhesive tape is being sucked to the suction surface of the feed member,
Since the adhesive tape is guided and sent by the tape guide member, even if the adhesive tape is relatively thin and has a small rigidity, it can be smoothly sent out to a position where the next cutting step is performed. Having.

In addition, the present invention provides an air blower that sends air to the adhesive tape side at least while the adhesive tape is running on the tape guide member, so that the adhesive tape can run on the tape guide member more smoothly. Having.

[Brief description of the drawings]

FIG. 1 is a plan view showing the configuration of an embodiment of a tape joining device according to the present invention, FIG. 2 is a side view of the tape joining device,
FIG. 3 is a schematic sectional view taken along the line III-III of FIG. 1, and FIGS.
1 is a diagram for explaining the operation of the example shown in FIG. 1, FIG. 5 is a plan view showing another configuration of the tape joining device according to the present invention, and FIGS. It is a diagram provided for explanation. (2) is a tape guide member, (6) is an adhesive tape, (7)
Is a lever, (7A) is an end surface suction portion, (7) is a tape feeding member, (11) is an opening, (32) is a blower, (41) is a piece of adhesive tape, (43) and (44) are covered. Joining tape, (43A) (4
4A) is a free end.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-221047 (JP, A) JP-A-58-500116 (JP, A) Full-fledged Showa 61-148,883 (JP, U) (58) Field (Int.Cl. ⁶ , DB name) B65H 35/07 B65H 21 / 00,19 / 18

Claims (2)

(57) [Claims] 1. A tape joining apparatus for running a long adhesive tape on a traveling path, drawing out a predetermined length, cutting the adhesive tape piece, and joining free ends of tapes to be joined with the adhesive tape piece. In the above, a tape guide member provided on the traveling path of the adhesive tape and having an opening, and a suction surface disposed so as to be movable in the direction of travel of the adhesive tape in the opening and adsorbing the adhesive tape. With the formed tape feed member, in a state where the adhesive tape is sucked by the suction surface of the tape feed member, by moving the tape feed member, the adhesive tape runs on the tape guide member, A tape joining device, wherein the adhesive tape is drawn out for a predetermined length. 2. The joining apparatus according to claim 1, further comprising a blower for sending air to the adhesive tape while at least the adhesive tape is running on the tape guide member.