JPH1059592A - Film supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cut a film in a constant length, and accurately and automatically supply it to a prescribed supply position by sandwiching both end parts of a width of the film by clamps in two moving arms, and arranging a cutter to cut a supply length of the film in the vicinity of fixed arms. SOLUTION: Moving arms 7 and 8 extending in the width direction of a film F1 are adjacently arranged at a right angle from a guide rail 2 between fixed arms 3 and 4. Clamps 71 and 71 to sandwich the film F1 from above and below are arranged in the vicinity of both end parts of a width of the film F1 in the moving arm 7, and similarly, clamps 81 and 81 to sandwich a film F2 from above and below are arranged in the vicinity of both end parts of a width of the film F in the moving arm 8. A cutter 9 whose knife blade travels in the width direction of the film F1 is arranged in a tip part of a sagging preventive plate 5, and similarly, a cutter 10 to move in the width direction of the film F2 is also arranged in a tip part of a sagging preventive plate 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin film formed by a film forming machine or the like, wound up and stored as a film roll, and fed out of the film roll (film supply source) while being fed out of a fixed length. The present invention relates to a film supply device for cutting into a predetermined position such as a secondary processing device.

[0002]

2. Description of the Related Art A film formed by a film extrusion molding apparatus and wound up as a film roll is used as it is in a long form or hand-cut, and after being cut into a predetermined length, further cut into a predetermined length. Secondary processing such as cutting into a shape, fusing the peripheral portion, or laminating a plurality of films of the same material or films of different materials may be performed. In such a case, it is necessary to feed out the film from the film roll, cut the film into a certain length, and supply the cut film to the secondary processing device.
Film feeding operations, such as feeding and cutting of a film from a film roll, feeding to a secondary processing device, and the like, have been mostly performed by hand conventionally.

[0003]

However, in such manual work, the cutting length may vary, the film may not be correctly supplied to a predetermined position, and the production capacity and productivity may be low. There are problems such as high cost.

[0004] Further, even if an attempt is made to automate, the periphery of such a secondary processing device has a small space, and the secondary processing device is provided with a hinge-type single-opening lid for secondary processing, heat retention and safety. In many cases, these tend to be restrictions on automation of film supply and film supply work, and automation is often hindered due to high installation costs.

The present invention has been made in view of the above-mentioned problems of the prior art, and is intended to cut a film to a predetermined length with high accuracy and to supply the cut film to a predetermined position accurately. It is an object of the present invention to provide a film supply apparatus which can be easily installed, has high production capacity and productivity, is hardly subject to restrictions on installation space and usage, and can be easily installed.

[0006]

In order to achieve the above object, a film feeder according to the present invention comprises a guide rail extending at one end in the width direction of a film, the guide rail being parallel to the direction in which the film is fed from the film supply source. A fixed arm extends perpendicularly to the guide rail at the end of the guide rail on the film supply side, and the fixed arm is provided with clamps for holding both ends of the width of the film. Two movable arms extending in a direction perpendicular to the guide rail are provided so as to be individually movable or stopped on the guide rail, and the movable arm is provided with clamps for clamping both ends of the width of the film. Is characterized in that a cutter for cutting the supply length of the film is provided.

In the present invention, means for individually moving or stopping the two moving arms on the guide rail include:
For example, one of two loop-shaped cables built in a guide rail and moving in opposite directions is sandwiched or released by an electromagnetic clamp device provided in the moving arm, and mounted on the moving arm. And a structure in which the moving arm is moved forward / backward or stopped by an air cylinder.

In order to perform the operation of individually moving forward / backward or stopping the two moving arms, the operation of opening / closing the clamp, the operation of operating the cutter, and cutting the film at an arbitrary timing, a separate installation is required. It is preferable that necessary setting values are input to the control panel of the sequence system or the microcomputer system, and these operations are performed by a signal issued from the control panel.

(Operation) Of the two moving arms, the clamp of the moving arm farther from the fixed arm (and thus farther from the film supply source) clamps and moves the end of the film on the film supply source ( Forward) to unwind the film from the film source. When the film is fed out for a predetermined length for secondary processing, the other end of the film is clamped by the clamp of the moving arm closer to the fixed arm. Thus, the film is supported in a state where appropriate tension is applied by the clamp of the fixed arm and the clamp of the moving arm closer to the fixed arm. Then, by operating the cutter, the film is accurately cut into a predetermined length.

Next, when both moving arms are moved at a constant speed, the cut film is moved by the clamps of both moving arms without applying excessive tension. Then, when reaching the predetermined supply position, the clamps of both moving arms are released to drop. As a result, the film is accurately supplied to the supply position. After the film is cut, the clamp of the fixed arm is clamped in preparation for the start of the next cycle.

The film supply device of the present invention can be installed in a narrow installation space because the guide rail that supports the movement arm and guides the movement is extended at one end in the width direction of the film.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. The embodiment shown in FIGS. 1 to 3 is an example of a film supply device capable of supplying two different kinds of films, FIG. 1 is a plan view, and FIG. 2 is a view taken along line XX in FIG. FIG. 3 is a front view schematically illustrating the present invention.

A film roll R on which different types of films F ₁ and F ₂ are wound is provided on both left and right sides of the secondary processing device 1.
₁ , R ₂ (film supply source) is supported horizontally.
Then, the film F ₁ wound on the film roll R ₁ is fed in the right direction, the film F ₂ wound on film roll R ₂ is drawn out to the left.

[0014] secondary processing device 1 in the width direction of the one end side (in FIG. 1 top), the film F ₁ and the moving direction (i.e., horizontal direction) in parallel guide rails 2 F ₂ is extended. The guide rail 2 has a head 21 having a hexagonal cross-sectional shape.
2 (see FIG. 2).

[0015] At the end of the end of the film roll R ₁ of the guide rails 2 and the film roll R ₂ side, the guide rail 2
Fixed arms 3 and 4 extend in a direction perpendicular to. Then, the fixed arm 3 in the vicinity of both ends in the width of the film F _1, the clamp 31 of the electromagnetic drive for clamping the film F ₁ from above and below is provided. Clamp 41, 41 of the electromagnetic drive for clamping is provided from the top and bottom of the film F ₂ to the fixed arm 4 in a similar manner.
These clamps 31, 31, and 41, 41 are open when the electromagnet is not energized, but are closed when the electromagnet is energized,
It has a structure for holding a film.

[0016] is just below the film F _1, the film F ₁
Has a slightly smaller width than the width, provided sagging preventing plate 5 for preventing sagging of the film F _1, likewise quickly to below the film F _2, having a slightly narrower width than the width of the film F _2, the film F ₂ is provided with a droop prevention plate 6 for preventing dripping.

Further, between the fixed arm 3 and 4, moving the arm 7 and 8 extending from the guide rail 2 in the width direction perpendicular to the film F ₁ is provided adjacent. Clamps 71, 71 for clamping is provided in the vicinity of both ends in the width of the film F ₁ to the mobile arm 7 the film F ₁ from above and below, in the same manner, in the vicinity of both ends in the width of the film F ₂ to the mobile arm 8 clamp for clamping the film F ₂ from above and below 81,8
1 is provided. Each of these clamps 71, 71 and 81, 81 is provided with a pair of upper and lower chucks, and the lower chuck is rotatable around a horizontal axis. It is in a state, it turns to the horizontal position by energizing the electromagnet,
The film is held between the upper chuck and the chuck (see FIG. 2). The inner surface of the chuck of the clamp is preferably covered with rubber, leather, or the like so as not to damage the film or slip when the film is pinched.

The movable arm 7 is provided with a dovetail-shaped guided part 7 which matches the hexagonally-projected head 21 of the guide rail 2.
2 is provided, and the guided portion 72 is the head 21 of the guide rail 2.
Is fitted. Thus, the movable arm 7 is guided by the guide rail 2 and is free to move left and right on the guide rail 2. The moving arm 8 is also provided with a guided portion 82, and the moving arm 8 can also move left and right on the guide rail 2.

Small guided motors (not shown) are mounted on the guided portion 72 of the moving arm 7 and the guided portion of the moving arm 8, and these small motors are energized by a signal generated from a microcomputer type control panel (not shown). , The moving arms 7 and 8 can be individually moved in any direction or stopped at an arbitrary position.

Further, a cutter 9 on which a knife blade runs in the width direction of the film F ₁ is provided at the tip of the sagging prevention plate 5, and similarly, the cutter 9 at the tip of the sagging prevention plate 6 also extends in the width direction of the film F _2. A moving cutter 10 is provided. When the cutters 9 and 10 energize the mechanism for moving the knife blade, the knife blade travels horizontally in the width direction of the film, and can cut the films F ₁ and F ₂ at high speed.

The microcomputer type control panel transmits signals for moving and stopping the moving arms 7 and 8, and also opens and closes the clamps 31, 31 and 41, 41, clamps 71, 71 and 81, 81 and the like. Also, a signal for performing a cutting operation of the cutters 9 and 10 is transmitted.

Next, the operation of the film supply apparatus constructed as described above will be described with reference to FIGS. 4 to 11 and FIGS.
This will be described with reference to FIG. 4 to 11,
In order to make the description easy to understand, the sagging prevention plates 5 and 6 are omitted, and the opening and closing of the clamp is represented by the opening and closing of the upper chuck. The description of the transmission of the operation signal from the control panel is omitted.

As shown in FIG. 4, first, the movable arms 7 and 8 are moved to the fixed arm 3 side (leftward position).
The film F ₁ is pulled out from the film roll R ₁ to the tip of the anti-sag plate 5 by hand, and the film roll R ₂ is pulled out.
, The film F ₂ is pulled out by hand to the tip of the sagging prevention plate 6. Then, the clamps 31 of the fixed arm 3 and the clamps 41 of the fixed arm 4 are closed. On the other hand, the clamps 71 of the moving arm 7 are in the open state, and the clamps 81 of the moving arm 8 are
Keep a closed state by pinching the end of the film F ₁ which protrudes outside.

Next, when the small motor mounted on the guided portion 82 of the moving arm 8 is energized and the clamps 31, 31 of the fixed arm 3 are opened at the same time, the moving arm 8 moves rightward, and the clamps 81, The film F ₁ sandwiched by 81 moves rightward, and a new film F ₁ is fed out from the film roll R ₁ (see FIG. 5).

[0025] Film F ₁ is fed a predetermined length, is energized the electromagnet of the clamping 71, 71, and clamp 31, 31, closes clamps 71 and 71 and clamps 31 and 31, clamps 71 and 71, and clamp 31, 31 to clamp the end of the film F _1. As a result, a state of sandwiching portions by these four clamp the film F ₁ is stretched. Then, at the same mainland cutter 9 is operated at the same time, the film F ₁ of stretched state is cut to a predetermined length (see FIG. 6). When the film F ₁ is cut feeding the film F ₁ from the film roll R ₁ is stopped.

Further, almost simultaneously with the operation of the cutter 9, the small arm mounted on the guided portion 72 of the moving arm 7 is energized and started, and the moving arm 7 moves on the guide rail 2 at the same speed as the moving arm 8. Move to the right with. When it is cut film F ₁₁ reaches a predetermined position of the secondary processing apparatus 1, the clamp 71, 71, and 81, 81
Open lower chuck were cut film F ₁₁ falls. (See FIG. 7).

[0027] After the cut film F ₁₁ is dropped, the mobile arm 7,8 is moved further to the right than the drop position of the film F _11, as shown in FIG. 8, the position of the fixed arm 4 side (right side) Reach. Clamp 81, 81 of the moving arm 8 in this position is open state, the clamp 71 of the moving arm 7 is in a state of being sandwiched the end of the film F ₂ which protrudes out of the anti-sagging plate 6 .

Next, when the small motor mounted on the guided portion 72 of the movable arm 7 is energized and the clamps 41, 41 of the fixed arm 4 are opened at the same time, the movable arm 7 moves to the left, and the clamps 71, The film F ₂ sandwiched by 71 moves to the left, and a new film F ₂ is fed out from the film roll R ₂ (see FIG. 9).

When the film F ₂ is fed out by a predetermined length, the electromagnets of the clamps 81 and 81 are energized to close the clamps 81 and 81 and are supported by the four clamps 81 and 41 of the film F _2. Part is in a stretched state. And it Tohohondo cutter 10 is actuated at the same time, the film F ₂ of stretched state is cut to a predetermined length (see FIG. 10). When the film F ₂ is cut feeding the film F ₂ from the film roll R ₂ is stopped.

Further, almost simultaneously with the operation of the cutter 10, the small motor mounted on the guided portion 82 of the moving arm 8 is energized and started, and the moving arm 8 moves on the guide rail 2 at the same speed as the moving arm 7. Use to move left. When it is cut film F ₂₁ reaches a predetermined position of the secondary processing apparatus 1, the clamp 71, 71, and 81, 81
The lower chuck is opened, and the cut film F ₂₁ is
Previously superimposed to fall onto the film F ₁₁ which has been supplied in this position (see FIG. 11).

[0031] After the cut film F ₂₁ is dropped, the mobile arm 7,8 is returned to the initial position shown in FIG. 4, and waits. Then, the lid open secondary processing device 1 of the hinged piece is closed, secondary processing into a film F _11, F ₂₁ superposed is made that the final product. When the final product is removed from the secondary processing device 1 by a final product removal device (not shown), one cycle ends, and the next cycle starts.

Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above, and the present invention includes design changes and the like without departing from the gist of the present invention.

For example, the above embodiment is an example of a film supply apparatus capable of supplying two different types of films. However, the same type of film may be supplied from the left and right using the same apparatus. Alternatively, it may be configured to supply from only one of the right and left sides.

In the above-described embodiment, the clamp is directly opened and closed by energizing the electromagnet. However, an air cylinder or a purely mechanical driving means may be used.

[0035]

According to the film supply apparatus of the present invention, since the film is fed from the film supply source, the film is cut into a predetermined length and supplied to the predetermined supply position with high precision. It can be performed well and automatically, and has high production capacity and productivity. Further, it is easy to adopt a configuration in which two different types of films are supplied. Furthermore,
In addition to its simple structure, it can be installed with little restrictions on space or use.

[0036]

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line XX in FIG. 1;

FIG. 3 is a front view schematically explaining the present invention.

FIG. 4 is an explanatory view illustrating a process of the present invention.

FIG. 5 is an explanatory view for explaining the process of the present invention, and FIG.
The following step is shown.

FIG. 6 is an explanatory view for explaining the process of the present invention, and FIG.
The following step is shown.

FIG. 7 is an explanatory view for explaining the process of the present invention, and FIG.
The following step is shown.

FIG. 8 is an explanatory view for explaining the process of the present invention, and FIG.
The following step is shown.

FIG. 9 is an explanatory view for explaining the process of the present invention, and FIG.
The following step is shown.

FIG. 10 is an explanatory view for explaining the process of the present invention, and shows the next process of FIG. 9;

FIG. 11 is an explanatory view illustrating a step of the present invention, and shows a step subsequent to FIG. 10;

[Description of Signs] 1 Secondary processing device 2 Guide rail 21 Head 3,4 Fixed arm 31,41 Clamp 5,6 Hanging prevention plate 7,8 Moving arm placement 71,81 Clamp 72,82 Guided parts 9,10 cutter R _1, R ₂ film roll (film source) F _1, F ₂ film F _11, was cut into F ₂₁ a predetermined size film

Claims (1)

[Claims] 1. A guide rail extending parallel to a direction in which a film is fed from a film supply source extends at one end in a width direction of the film, and a fixed arm is provided at an end of the guide rail on the film supply side at right angles to the guide rail. The fixed arm is provided with a clamp for holding both ends of the width of the film, and the guide rail is provided with two moving arms extending in a direction perpendicular to the guide rail, individually moving or moving on the guide rail. The film is provided so as to be stoppable, the moving arm is provided with clamps for holding both ends of the width of the film, and a cutter for cutting the supply length of the film is provided near the fixed arm. Feeding device.