JPH0540035Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is attached to a sheet-fed printing machine, a copying machine, etc., and prints or copies and stacks printed matter.
The present invention relates to a tape feeder that feeds and cuts a tape of a predetermined length between sheets of each predetermined number of copies.

(Prior art) Conventionally, when a paper tape is fed between the required number of sheets of printed matter printed or copied and stacked by a sheet-fed printing machine, copying machine, etc., the paper tape is A device has been used that bends a paper tape in the length direction to increase its rigidity and prevents the paper tape from curving in the length direction, and then feeds the paper tape between sheets of paper at an accurate predetermined number and cuts the paper tape.

This type of device is described in Japanese Utility Model Publication No. 58-54443. This involves inserting the tape X wound around a tape reel a, as shown in Figure 7, through an auxiliary roll b, into a drive roll d, which has a groove c with a V-shaped cross section on its circumferential surface, and groove c, as shown in Figure 8. It is sandwiched between driven rolls e formed into a freely V-shaped cross section. Next, the groove c of the drive roll d and the driven roll e come into pressure contact with each other through the tape X and roll, so that the tape
is drawn in from the tape reel a, and the tape X is bent into a V-shaped cross section and sent to a cutting section f provided in the front. Further, the tape X is sent out and cut at a cutting section f to a required length.

In this device, a driving roll d and a driven roll e are connected at a contact point between these rolls d and e in the longitudinal direction, and at a contact point between these rolls d and e in a cross-sectional direction.
is a tape X with each V-shaped groove c and the tip.
It will be circumscribed through. At this time, the pressing force between these rolls d and e must be large enough not to damage the tape There were cases where the tape X could not be sent out because the drive roll d could not be secured and the drive roll d would idle. On the other hand, if the tape is strongly pressed in a point contact state, a large pressing pressure will be applied to the tip of the tape X, which has a V-shaped cross section, and the tape X will be strongly bent. Increased rigidity. At this time, the shape of the tape X is maintained even if the tape X is fed between paper sheets such as printed matter and further printed matter is stacked on top of it, so the portion where the tape If there is a limit to the stacking height, there is a risk that the number of stacked printed matter will be reduced and this will be uneconomical.

(Problems to be Solved by the Invention) The present invention eliminates such conventional inconveniences and allows the tape to be fed out safely and reliably by fully engaging the tape and the roll, and By providing the tape with rigidity that prevents it from curving during delivery and by providing a weak bending portion that does not maintain its shape when inserted between stacked paper sheets, it is possible to accurately insert the tape between paper sheets. An object of the present invention is to provide a tape feeder that can feed a tape and suppress an increase in stack height.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a reel in which a tape is wound around an annular winding core, and a reel that supports the reel by a reel shaft passing through the winding core. In a tape feeder including a holding section, a feeding mechanism that draws out and feeds the tape from a reel, and a cutting mechanism that cuts the tape fed from the feeding mechanism, the feeding mechanism has a flat portion in the center of the circumference. A drive roll having a groove having a trapezoidal cross section with sloped parts at both ends thereof, and a tape which can be freely rolled between the drive roll, the flat part of the groove, and a tape wider than the drive roll, and a cross-section table for the tape. It is characterized by comprising a driven roll that is bent into a shape and sent out, a pressure contact device that presses the drive roll and the driven roll, and an electric motor that rotates the drive roll.

(Function) In the tape feeder having such a configuration, the present invention provides a device that draws the tape from the reel into the trapezoidal cross-sectional groove of the driving roll of the feeding mechanism, and presses the driven roll against the flat part of the groove of the driving roll. Weld by pressure. In this state, the drive roll is rotated by the electric motor, and the driven roll, which is in pressure contact with the drive roll via the tape, is rolled so as to send out the tape. At this time, the tape is held between the flat part of the groove of the driving roll and the driven roll, and both sides of the tape are bent along the sloped parts at both ends of the groove. The tape is sufficiently pressed between the flat part of the groove of the drive roll and the driven roll, and as the drive roll rotates, the tape is fed out while forming a weak bend that does not bend the tape.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 6.

Fig. 1 is a perspective view, Fig. 2 is a side view of the reel holding part, Fig. 3 is a sectional view taken along the - line in Fig. 2, Fig. 4 is an explanatory plan sectional view of the head, and Fig. 5 is Fig. 4. of-
6 is a sectional view taken along the - line in FIG. 5.

The tape feeder shown in the first diagram includes a reel A in which tape X is wound around an annular winding core 1, a reel holding part B that holds the reel A, and a device that adjusts and attaches the reel holding part B to an accurate position. Attachment part C and feeding mechanism D that pulls out tape X from reel A and sends it out.
and a head F equipped with a cutting mechanism E for cutting the tape X fed out from the head F. Although not shown, a control circuit that controls and operates the feeding mechanism D and the cutting mechanism E to feed and cut the tape between sheets of each predetermined number of stacked printed matter, and the set number of sheets are input and displayed. It has a controller consisting of a panel.

As shown in Figures 1 to 3, the reel A is fitted onto the outer periphery of a bearing 3 that fits on the support shaft 2, making it rotatable.A ring-shaped winding core 1 on which tape X is wound is attached and detached from the reel shaft 4. You can wear it freely.

Similarly, the reel holding part B has a side plate 6 in the shape of a horizontal trapezoid with the long side at the front and has a cutout part 5 that holds the reel A attached to the support shaft 2 and allows the reel A to be attached and detached upward. , a doubling plate 7 that also has a notch 5, a front plate 9 that connects the left and right side plates 6 and has a tape X outlet 8 at its lower end, a rear plate 10 that also connects the rear, and the vicinity of the outlet 8. It consists of a guide roller 11 provided at the reel A to guide the tape X pulled out from below the reel A, and a guide hole 13 provided at the lower end into which a head guide 12 holding the head F can be inserted and slid freely in the front and back direction. , a fixing bolt 1 for fixing the head guide 12;
4, and a rotation control plate 16 for the reel A, which is swingably attached to the upper end of the front plate 9 via a hinge 15.

As shown in the first diagram, the device mounting portion C has a boss 1 similar to the link arm 17 which has bosses 17a at both ends.
8a, link arm 18 and link arm 1
7 is placed on the upper side and a connecting pin 40 is inserted into one of the bosses 17a, 18a. Fixing screw 1
7b, 18b to the bosses 17a, 1 on the connecting pin 40 side.
It was installed at 8a. The other boss 1 of the link arm 17
7a is arranged on the bottom surface of a mounting plate 19 bent into an L shape and having a device mounting hole 19a, and the link arm 18
The other boss 18a is bent into an L shape, and its side surface is fixed to and supported by the side plate 6 of the main body of the reel holding part B. It is mounted rotatably and fixed at a predetermined position by tightening the mounting bolt nuts 17c and 18c. As a result, the device mounting part C and the reel holding part B
are positioned and fixed in a predetermined position as one body, and installed through the device mounting hole 19a of the mounting plate 19.

The feeding mechanism D is installed inside the head F as shown in FIGS. 4 to 6, and is provided with a groove 21c having a trapezoidal cross section, which has a flat part 21a at the center of the circumferential surface and sloped parts 21b at both ends thereof. a drive roll 21 driven by a drive shaft 21d; a driven roll 22 that presses against the flat part 21a of the groove 21c of the drive roll 21 via the tape X and is freely rollable and bends the tape X into a trapezoidal cross section;
The drive roll 21 and the driven roll 22 are connected to a driven shaft 22.
A plate spring 23, which is a pressure contact device that presses through a
Then, the tape X is applied from above facing the drive roll 21.
a guide plate 24 that guides the drive shaft 21d; an electric motor 27 that rotates the drive shaft 21d via gears 25 and 26;
It consists of a guide roller 28 which is provided outside the head F and guides the tape X to the rolling portion of a driving roll 21 and a driven roll 22.

The cutting mechanism E is installed in parallel with the feeding mechanism D on the tape feeding side in the head F, and is provided at a position opposite to the fixed blade 29, and is lowered by a solenoid 30 to cut the tape X, and then returned to the upper position by a compression spring 31. Movable blade 3
It consists of 2.

The head F has the above-mentioned feeding mechanism D and cutting mechanism E installed therein, and has a guide hole 1 provided at the lower end of the reel holding part B.
The head guide 12 is held by a head guide 12 slidably provided on the reel holding part B, and the head guide 12 is fixed and positioned via the side plate 6 of the reel holding part B by the aforementioned fixing bolt 14.

The operation of sending out the tape X by the tape sending device having the above configuration will be described below.

The tape feeder installed at a predetermined position by the rotatable and vertically movable device mounting part C of the reel holding part C passes the tape X of the reel A wound around the winding core 1 from the lower end to the guide roller 7 and the head F. A guide roller 27 guides the head guide 12 in parallel to a feeding mechanism D provided inside the head F. At this time, the rotation control plate 16 suppresses the inertia of the reel A to maintain the tape X in a tensioned state. In the feeding mechanism D, the tape X guided in a tensioned state so as to circumscribe the drive roll 21 is bent by the driven roll 22 pressed against the drive roll 21 into a groove 21c having a trapezoidal cross section on the drive roll 21. Both ends of the tape X that spring up are guided by the guide plate 24. In this state, by detecting a predetermined number of printed matter and rotating the electric motor 27 by the control circuit to rotate the drive roll 21, the tape X pressed against this and the vertical roll 22 is cut while forming a trapezoidal cross section. It is sent to the mechanism E side. Next, when the tape X is fed out a predetermined length and reaches a predetermined position on the printed material, the rotation of the electric motor 27 is stopped, and the solenoid 30 of the cutting mechanism E is activated so that the tape X is held upward by the compression spring 31. The movable blade 32 is lowered to cut the tape X, which is fed out a predetermined length between the movable blade 32 and the fixed blade 29 and whose both sides are flattened while being guided by the guide plate 24, to cut the paper sheet spacing for each predetermined number of printed matter. Tape X is sent to.

This allows the tape A curved portion may be provided. In addition, the device mounting part C is rotatable and vertically movable, and the head guide 1 of the head F is
2 is slidable back and forth within the guide hole 13, the mounting position of the tape feeder is not limited, and the tape X can be fed accurately to a predetermined position on printed materials, etc., and the reel A can be moved back and forth in the guide hole 13 The reel A can be easily replaced without removing the side plate since it can be attached and detached upward through the provided notch 5. Further, the rotation control plate 16 is provided to be swingable by a hinge 15, and the inertia of the reel A is suppressed by applying pressure due to its own weight onto the tape X wound on the reel A in accordance with changes in the winding amount. is completed, and reel A
The structure is simple and does not get in the way when replacing.

(Effects) As is clear from the above description, the present invention makes it possible to feed out the tape safely and reliably by press-contacting the flat part of the groove of the driving roll and the driven roll through the tape. , a gap is provided between the slope of the groove of the drive roll and the side surface of the driven roll to give the tape rigidity so that it does not bend when being fed out, and is weak and does not retain its shape when inserted between stacked paper sheets. It is an object of the present invention to provide a tape feeder that can be provided with a bending part, accurately feed tape between a predetermined number of paper sheets, and suppress an increase in stacking height.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention,
FIG. 1 is a perspective view thereof, FIG. 2 is a side view of the reel holding part, FIG. FIG. 6 is a sectional view taken along the line - in FIG. 5, and FIGS. 7 and 8 are explanatory diagrams of the conventional example. DESCRIPTION OF SYMBOLS 1... Winding core, 2... Reel shaft, 21... Drive roll, 21a... Flat part of groove, 21b... Inclined part of groove, 21c... Groove, 22... Driven roll, 2
3... Pressure welding device, 27... Electric motor, A... Reel, B... Reel holding part, C... Device mounting part, D
...Feeding mechanism, E...Cutting mechanism, X...Tape.

Claims (1)

[Scope of utility model registration request] A reel in which a tape is wound around an annular winding core, a reel holding part that supports the reel with a reel shaft passing through the winding core, a feeding mechanism that draws out and feeds the tape from the reel, and a feeding mechanism that feeds out the tape from the feeding mechanism. A tape feeder is equipped with a cutting mechanism for cutting a tape, the feeding mechanism comprising: a drive roll having a groove having a trapezoidal cross section and having a flat part at the center of the peripheral surface and sloped parts at both ends thereof; , the driving roll and a driven roll that can freely roll through the flat part of the groove and a wider tape and bend the tape into a trapezoidal cross section and send it out; and the driving roll and driven roll are pressed together. What is claimed is: 1. A tape feeder comprising: a pressure welding device for rotating the drive roll; and an electric motor for rotating the drive roll.