JPH0725442B2 - Tape delivery mechanism of tape delivery cutting device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an improvement of a tape feeding mechanism of a tape feeding and cutting device.

(Prior Art) The applicant of the present invention has already proposed in Japanese Patent Application No. 62-111981 a tape feeding / cutting device for sequentially feeding and cutting tapes such as interlining tapes for clothing and waiting them. Then, in the conventional tape feeding and cutting apparatus including the tape feeding and cutting apparatus, a driven roller for feeding the tape by holding the tape between the driven roller and the tape is held by a predetermined force. As described above, the tape feeding is provided with the urging means for urging the driven roller toward the drive roller.

(Problems to be solved by the invention) By the way, in the tape feeding mechanism of the conventional tape feeding and cutting device, the urging force of the urging means for urging the driven roller toward the drive roller is one unit at the factory shipment stage. It is determined by the spring constant of a coil spring or the like that is appropriately selected for each case. Therefore, in the tape feeding mechanism in which the biasing force is set according to the tape having weak stiffness, the pressing force by the driven roller is insufficient, and in the tape feeding mechanism in which the biasing force is set according to the tape having strong stiffness, , The tape may wind around the rollers.

That is, in the tape feeding mechanism of one tape feeding / cutting device, it is not possible to deal with several kinds of tapes having different waist strengths, and if several tape feeding / cutting devices are used depending on the tape to be cut, There is a problem that the coil spring or the like has to be replaced with one having a different spring constant.

Therefore, an object of the present invention is to provide a tape feeding mechanism of a tape feeding / cutting device capable of appropriately changing the biasing force of the biasing means according to the tape to be cut.

(Means for Solving the Problem) A tape feeding mechanism of a tape feeding / cutting device of the present invention is a tape feeding mechanism of a tape feeding / cutting device for holding a tape between a driving roller and a driven roller and feeding the tape. And a pressing stay swingably mounted on a frame and supporting the driven roller, and a pressing stay mounted between the frame and the pressing stay. Biasing the driven roller into pressure contact with the drive roller,
When the tape is not delivered, the pressing stay is biased in the direction opposite to the driving roller to contact and stop the stopper, and the coil spring that holds the upper part of the driving roller in an open state and the frame spring can be slid horizontally. The present invention is characterized in that a spring support member for adjusting the urging force of the coil spring is provided via an urging force adjusting bolt provided.

(Operation) According to the present invention, the driven roller is supported by the pressing stay,
It is urged in the drive roller direction and the counter drive roller direction in accordance with the swing of the pressing stay. Then, when the tape is sent out, the driven roller is urged to press the driven roller against the drive roller, and when the tape is not sent out, the driven roller is urged toward the anti-drive roller direction so that the pressing stay comes into contact with the stopper and then stops. Since the upper part of the roller is held in the open state, the tape can be easily attached, inspected, and repaired.

Also, by sliding the spring support member horizontally through the urging force adjustment bolt, the urging force of the coil spring can be adjusted, so that the optimum urging force can be applied to several types of tape with different waist strength. Can be selected, and even tapes having different waist strengths can be reliably delivered.

Further, since the spring support member slides in the horizontal direction, the sliding distance can be set long, and the biasing force of the coil spring can be adjusted in a wide range and with high accuracy.

Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings.

The tape feeding and cutting machine (300) according to the present embodiment is a machine for cutting and processing a clothing tape (T) (hereinafter, simply referred to as “tape (T)”) into a predetermined length, and is shown in FIG. As shown in, the tape feeding / cutting device (100) and the control device (20
0) and.

The tape feeding and cutting device (100) is a tape for holding a drive roller (10) and a tape winding (T1) mounted between the left and right side frames (1, 2) as shown in FIGS. 1 and 2. The tape holding mechanism (20), the driven roller (30), and the like, and the tape feeding mechanism, the cutting mechanism (40), the standby mechanism, and the like.

The drive roller (10) is a roller that is rotationally driven by a pulse motor (not shown) that rotates in accordance with the number of pulses sent from the control device (200) through the signal line (202). It is rotatably supported between the frames (1, 2) so that a part of the outer periphery is exposed from the front notch of the upper cover.

The driven roller (30) has a reinforcing bar (33) at the tip, and has a base end by the shaft (32) at the frame (1,
2) A pair of left and right pressing stays (3
It is rotatably supported at a position near the tip of 1).

One end of a coil spring (50) is fixed to a position of the pressing stay (31) near the shaft (32). One end of the wire (51) is connected to the other end of the coil spring (50),
The wire (51) and the pin (52) convert the pulling force direction of the coil spring (50) to the horizontal direction. The wire (51) is extended in the horizontal direction by a pin (52), and its ends are fixed to both ends of the spring support member (53) with screws. Then, the pressing stay (31) is biased by the coil spring (50). Then, the driven roller (30) is urged in the right direction shown in FIG. 1, that is, in the direction of the drive roller (10) when the tape (T) is delivered, to the drive roller (10).
When the tape (T) is not delivered, it is moved to the left, that is, the anti-drive roller (10).
The pressing stay (31) is urged in the direction to stop at the position where it comes into contact with the stopper (34). This allows the drive roller (1
The upper part of 0) is held open.

The spring support member (53) has a female screw (53a) threaded in the front-rear direction of the central portion thereof, and guide bolts (55) are screwed on both ends thereof as shown in FIG. Further, the guide bolt (55) is arranged in a long hole (3) formed by punching at the lower ends of the front portions of both frames (1, 2). Therefore, the spring support member (53) is guided by the elongated hole (3) and the guide bolt (55) at the lower end of the front portion of the frame (1, 2) and can slide back and forth.

A bolt support rod (56) is provided between the frames (1, 2) at a position further forward of the spring support member (53).
An urging force adjusting bolt (57) is loosely fitted in a hole (56a) provided in the center of the bolt support rod (56). The biasing force adjusting bolt (57) has a spring support member (5
It is locked to the front end face of 3) and its rear end side is screwed to the female screw (53a).

A pointer (60) is attached to the left end of the spring support member (53) that slides back and forth, and the tip of the pointer (60) has an outer surface of a side cover (1a) that covers the side plate (1). The strength of the biasing force of the coil spring (50) can be visually recognized by pointing to the scale provided on the.

The right side of the urging force adjusting bolt (57) is slidably brought into contact with the side surface of the bolt (57) as shown in FIGS. 3 and 4 to lock the rotation of the bolt (57). The lock member (58) is fixed by the screw (59).

The cutting mechanism (40) is a mechanism for cutting the tape (T) fed by the tape feeding mechanism at a right angle to the feeding direction, and includes a guide plate (41), an upper blade mounting body (42), and an upper blade ( 43) and the lower blade (44), a cutting motor (45) for driving these, a blade up-down lever (46), and the like. The cutting motor (45) has a tape holding guide (4
7) and a tape holding plate (48), etc. are driven to hold the cut end of the cut tape (T).

The tape delivery / cutting device (100) configured as described above is controlled by the control device (200) and preset by the operator in the tape delivery of the first step → cutting → waiting → tape delivery of the second step → cutting → It is possible to repeatedly perform the operation of cutting the tape (T) of a plurality of set lengths and making them stand by in the set order such as standby → tape delivery in the third step → cutting → standby.

Next, the operation of the tape feeding mechanism of the tape feeding and cutting device configured as described above will be described.

The spring support member (53) shown in FIG. 1 is located substantially in the center of the urging force adjusting bolt (57), and the coil spring (50) is strongly pulled through the wire (51).
The pressure stay (31) is rotated rightward as shown in FIG. 1 when the tape (T) is delivered, and the driven roller (30) is pressed against the drive roller (10) by the urging force of the coil spring (50). A tape (T) is sandwiched between them. When the tape (T) is not fed, it is rotated to the left, comes into contact with the stopper (34) and stops, and the driven roller (30) is held at a position separated from the drive roller (10) to drive the tape (T). Laura (1
The upper part of (0) is open.

The pressure contact force between the driven roller (30) and the drive roller (10) is appropriately changed depending on the strength of the waist of the tape (T) held between the two, and the change procedure will be described. To do.

The driven roller (30) is strongly pressed and biased by the driving roller (10) by the coil spring (50) and the pressing stay (31),
It is in a state suitable for strong tape. Therefore, when feeding and cutting the tape with weak stiffness, loosen the screw (59) and move the lock member (58) to the right as shown in FIG. 3, and rotate the biasing force adjusting bolt (57). Let And
When the spring support member (53) is moved leftward in the drawing, the amount of displacement of the coil spring (50) decreases, that is, the tension of the coil spring (50) decreases, and the pressing biasing force weakens.
The tape with a weak waist can be reliably delivered.

When feeding and cutting a tape that is stronger than the above-mentioned tape, the screw (59) is tightened to move the spring support member (53) to the right as shown in FIG. When the coil spring (50) is moved, the displacement amount of the coil spring (50) increases, that is, the tension of the coil spring (50) increases, and the pressing biasing force increases, so that the tape having a higher stiffness can be reliably delivered.

As described above, in this tape feeding mechanism, the biasing force adjusting bolt (57) is rotated in accordance with the waist strength of the tape (T) so that the bolt (57) and the spring supporting member (53) are screwed together. By appropriately changing the amount, the pressing biasing force of the driven roller (30) by the coil spring (50) can be easily changed, and various tapes (T) having different waist strengths can be reliably delivered.

Moreover, since the spring support member (53) is slid horizontally with respect to the frame (1, 2), the sliding distance can be set long, and the biasing force of the coil spring (50) can be adjusted in a wide range and with high precision. By appropriately selecting the spring constant of the coil spring (50), it is possible to cut several kinds of tapes (T) having different waist strengths by one tape feeding / cutting device (100).

Also, the pressure stay (31) that swings the driven roller (30).
When the tape (T) is not delivered, the driven roller (30) is biased in the direction opposite to the driving roller (10) to bring the pressing stay (31) into contact with the stopper (34). The roller (30) stops at a position separated from the drive roller (10) and the upper part of the drive roller (10) is opened, so that the tape (T) can be easily attached, inspected, and repaired.

The present invention is not limited to the above-described embodiment, and can be embodied in a tape feeding / cutting device having a function other than those described above, an industrial tape other than an interlining tape for clothing, a masking tape, or the like. The present invention may be embodied in a tape feeding mechanism of a tape feeding / cutting device in another field, or may be changed as appropriate without departing from the spirit of the present invention.

(Effects of the Invention) As described in detail above, in the present invention, the pressing stay supporting the driven roller is swingably provided, and the pressing stay is biased by the coil spring in the driving roller direction and the counter driving roller direction. Therefore, when feeding the tape, the urging force that urges the driven roller toward the drive roller can be changed as appropriate to select the optimum pressure contact force for several types of tape with different waist strengths. Can be sent to.

Further, when the tape is not delivered, the driven roller is stopped at a position separated from the drive roller and the upper part of the drive roller is held in an open state, so that the tape mounting operation and maintenance inspection can be easily performed.

Moreover, since the spring support member is slid in the horizontal direction with respect to the frame, the sliding amount can be set to a large amount, and the biasing force of the pressing stay by the coil spring can be accurately adjusted in a wide range. This has an excellent effect that the tapes can be surely delivered in correspondence with several kinds of tapes having different strengths.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of a tape feeding mechanism of a tape feeding and cutting device, FIG. 2 is an overall perspective view of the tape feeding and cutting device, and FIG. 3 is a front view of the tape feeding mechanism. The figure is a bottom view of the tape feeding mechanism showing the biasing force adjusting means. Explanation of reference numerals 1, 2 ... frame, 10 ... drive roller, 30 ... driven roller, 31 ... pressing stay, 34 ... stopper, 50 ... coil spring, 53 ... spring support member, 57 ... biasing force Adjustment bolt,
100: Tape sending and cutting device, T: Tape.

Claims (1)

[Claims] 1. A tape feeding mechanism of a tape feeding / cutting device for holding a tape between a driving roller and a driven roller and feeding the tape, the tape feeding mechanism being swingably attached to a frame to support the driven roller. Is attached between the pressing stay and the frame and the pressing stay, and when the tape is delivered, the pressing stay is biased toward the driving roller to press the driven roller against the driving roller.
When the tape is not fed, the pressing stay is biased in the direction opposite to the driving roller to abut and stop the stopper to hold the upper part of the driving roller in an open state, and the coil spring is slidable in the horizontal direction. A tape feeding mechanism of a tape feeding and cutting device, comprising: a spring supporting member which adjusts the biasing force of the coil spring via a biasing force adjusting bolt.