JPS61152440A - Automatic supplying device for belt-type material - Google Patents

Abstract

PURPOSE:To supply the belt-type materials automatically and improve the productivity of the device by a method wherein a contact bonding means, bonding the belt-type material by contact, is provided at the tip end of a swing frame. CONSTITUTION:The movable supplying device 1 is arranged in a direction orthogonal to the supplying direction of the belt-type material W to be supplied to a forming drum 100 and the swing frame 9 is arranged at the tip end of the automatic supplying device 1 through an actuator 10 while the contact bonding means 18, bonding the belt-type material from the lower side to the forming drum by contact, is provided at the top end of the swing frame. Accordingly, the belt-type material may be supplied automatically to the forming drum in a narrow space, shifting work is easy, operability is very good and all works from the supply of the material to the contact bonding of the same to the forming drum may be effected automatically, therefore, the productivity of the device may be improved.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to an automatic feeding device for a flexible strip-shaped material, and more specifically, for forming a flexible strip-shaped material such as a material for tire treads and 7 tires. This invention relates to an automatic feeding device for a strip material that is automatically fed from below a drum.

[Prior art]

Traditionally, devices for feeding tread material (strip material) used during green tire molding include devices that automatically feed the strip material from above to the forming drum, and devices that feed the strip material from above and below the forming drum. Devices for automatically feeding materials are known.

However, the frame of such a conventional automatic feeding device is formed flat and moves back and forth in the feeding direction of the strip material to be fed to the forming drum, so it requires a large area. - There was a problem that the workability was extremely poor.

[Purpose of the invention]

This invention was devised by focusing on the conventional problems, and its purpose is to be able to automatically feed a strip material to a forming drum in a narrow space, and to achieve extremely high workability. An object of the present invention is to provide an automatic feeding device for strip-like material that is efficient and can improve productivity.

[Structure of the invention]

In order to achieve the above object, the present invention provides an automatic feeding device that is movable in a direction perpendicular to the feeding direction of the strip material to be fed to the forming drum. The gist is that a swinging frame is provided, and a pressure bonding means is provided at the tip of the swinging frame for pressure-bonding the strip material to the forming drum from the lower surface side.

[Embodiments of the invention]

The present invention will be described in detail below based on the accompanying drawings.

FIGS. 1 and 2 show a strip material W (
1 shows a side view and a plan view of an automatic feeding device 1 for supplying tire tread (tire tread) to a forming drum 100,
00 is rotatably supported by a molding machine main body frame 120 via a main shaft 110.

The automatic feeding device 1 is disposed below the forming drum 100 via a shift device 2, and the automatic feeding device 1 is laid on the floor 3 substantially parallel to the main shaft 110 by the driving force of the shift device 2. It is configured to reciprocate along guide rails 4a and 4b between areas A and B in FIG. 2 in the direction of the arrow.

Note that the automatic feeding device 1 is normally located in area A so that the operator can work while standing in front of the forming drum 100.

The automatic feeding device l has the guide rail 4a at the bottom,
A central frame 6 to which wheels 5 ar5b are mounted, which run along the top of the central frame 6; a rear frame 7 integrally provided at a constant inclination angle on the rear end side of the central frame 6; A swing frame 9 is provided with a centering device 40 (described later) at the tip thereof, and is swingably connected via a pin 8.

The swinging frame 9 moves the tip W1 of the strip-shaped material W onto the lower surface side of the forming drum 100 as shown in FIG. It is configured to swing to the attachment position. The rear end of the actuator 10 is supported by the central frame 6 via a bracket 11, and the tip of the rod 10a of the actuator 10 is attached to the lower surface of the swing frame 9 via a bracket 12. ing.

A bracket 1 is provided on the upper surface of the front end side of the central frame 6.
The adjustment bolt 14 is attached through the adjustment bolt 14, and the &m
A stopper member 15 is attached to the top surface of the PI.

A stopper mechanism composed of the adjustment bolt 14 and the stopper member 15 has a loft LQ of the actuator IO.
It has the role of regulating the limit of a in accordance with the outer diameter of the forming drum 100. A plurality of free rollers 16 are arranged on the central frame 6, the rear frame 7, and the swing frame 9 at predetermined intervals, and on the free rollers 16 provided on the central frame 6, A drive roller 17 is provided. This driving roller 17 feeds the strip-shaped material W held between the free roller 16 and the pressure roller 18 (pressing means) provided at the tip of the swing frame 9 . The drive roller 17 is rotationally driven by a drive motor 20 via a sprocket 17a, a chain 191, and a sprocket 17b incorporating a one-way clutch (not shown). It is electrically connected to a detector 21 such as.

Therefore, the tip portion W1 of the strip material W is attached to the pressure roller 18.
When the strip material W is fed in, the tip thereof is detected by the detector 21, and the drive motor 20 is stopped to stop feeding the strip material W.

Next, the shift device 2 is installed on the side of the molding machine main body frame 1200, as shown in FIG. This shift device 2 has a housing 23 installed on a base plate 22, and a bracket 24 on this housing 23.
Cylinder 25 is attached via.

The guide rod 26 is connected to the cylinder 2 by a slide bearing rig 27 (not shown) housed in the inner cylinder of the housing 23.
The tips of the cylinder 25 and the guide rod 26 are connected to the bracket 28° and the pin 29. Bracket 30. It is connected to the sides of the central frame 6 via pins 31.

Next, as shown in FIGS. 4 to 7, the centering device 40 provided on the swing frame 9 has a plurality of centering devices (
In this embodiment, there are four pie rolls 41 (pie directional rolls: rolls that can freely feed the strip material W in the feeding direction) and a toe-in angle α that can be opened and closed symmetrically corresponding to the middle H of the strip material W. Shoulder guide roll 42a with
, 42b, and the shoulder guide rolls 42a, 42
b, and a plurality of presser rolls 43 arranged horizontally to face each other on the bidi roll 41.

The bidi rolls 41 are arranged in a row at the center of the lower part of the swing frame 9 in the width direction with a support frame 44 interposed therebetween.

Further, the shoulder guide rolls 42a and 42b provided symmetrically on both sides of the piedy roll 41 are the sixth shoulder guide rolls 42a and 42b.
As shown in the figure, the brackets 46a and 4b are rotatably attached to the brackets 46a and 4b with a toe-in angle α (inward inclination angle of the roll with respect to the feeding direction of the strip material W) as shown in FIG. . The brackets 46a, 46b have a naso 47a built into their lower ends.

47b is slidably screwed into a guide rod 49 having left and right screws 48a and 48b disposed in the middle direction of the swing frame 9.
As shown in the figure, an operating handle 50 is provided.

Therefore, when the operating handle 50 is rotated in a predetermined direction, the shoulder guide roll 42a is rotated.

42b is a bracket that opens and closes symmetrically via brackets 46a and 46b that are screwed into left and right screws 48a and 48b, and comes into contact with the side taper portion W2 of the strip material W as shown by the chain line in FIG. 6 during the closing operation. It is.

Next, both ends of the plurality of presser rolls 43 are rotatably supported by a support frame 51, and as shown in FIGS.
It is supported by the lower frame 53 via.

A spring 55 is interposed between the link arm 54 of the link mechanism 52 and the lower frame 53, and the spring 55 always urges the presser roll 43 toward the upper surface of the strip-shaped material W with a constant pressing force via the support frame 51. ing.

Furthermore, the gap between the presser roll 43 and the piedy roll 41 is as follows:
When the strip material W is not being supplied, the stopper 56 shown in FIG.
It is positioned by Further, when the strip-shaped material W is supplied from the rear of the swing frame 9, the presser roll 43 floats up while remaining parallel, and pinches the strip-shaped material W equally on the left and right sides.

Furthermore, when the strip material W is located at the center of the swing frame 9, most of the pinching force acts between the presser roll 43 and the piedy roll 41, and a weak force acts on the presser roll 43 and the shoulder guide rolls 42a and 42b. This pinches the side tapered portion W2 of the strip-shaped material W with equal force on the left and right sides.

Further, when the strip-shaped material W tries to come off from the center of the swing frame 9, for example, when the strip-shaped material W tries to come off to the left in FIG. Shoulder guide roll 4
2a, the pinch force acts intensively between the presser roll 43 and the shoulder guide roll 42a, and the pinch force acts intensively between the presser roll 43 and the shoulder guide roll 41, and between the presser roll 43 and the shoulder guide roll 42b. The pinch force between them is almost zero.

Therefore, it is forcibly returned to the center by the rightward force generated by the rotation of the shoulder guide roll 42a having the toe-in angle α.

As described above, the force generated by the rotation of the shoulder guide rolls 42a and 42b with the toe-in angle α is strong compared to the rotation speed, so it is possible to maintain high centering accuracy even when the strip material W is fed at high speed. becomes.

Next, the operation of the present invention constructed as described above will be explained.

First, in FIG. 2, the automatic supply device 1 is placed on standby in area A via the shift device 2, and a strip material W of a predetermined length is transferred to a Cary Trunk (not shown).
A worker feeds the paper one by one from the inclined rear frame 7 of the automatic feeding device 1. When the leading edge Wl of the strip material W reaches the position of the drive roller 17, a detection device (not shown) detects it and drives the drive motor 20, pinching the strip material W between the drive roller 17 and the free roller 16. In this state, feed it to the tip side of the swing frame 9. During this time, the strip material W is centered by the centering device 40 as described above. Note that the centering device 40
Since the action is the same as described above, the explanation will be omitted. When the tip W1 of the strip-shaped material W is fed to the pressure roller 18 provided at the tip of the swing frame 9, the tip W1 is detected by the detector 21, the drive motor 20 is stopped, and the strip-shaped material W is fed. to stop.

From this state, the actuator 10 starts an extension operation, rotates the swinging frame 9 about the bin 8 as a fulcrum as shown in FIG. 3, and rotates the tip W1 of the strip material W at a constant speed. The molding drum 100 is pressed and wrapped around the molding drum 100.

Furthermore, before the entire length of the strip material W is wound around the forming drum 100, the swing frame 9 returns to the state shown in FIG.
The shift device 2 automatically returns from area B to area A.

By repeating the above operations in sequence,
This has the effect that the work of supplying the strip material W can be carried out efficiently.

〔Effect of the invention〕

The present invention provides an automatic feeding device that is movable in a direction perpendicular to the feeding direction of the strip material to be fed to the forming drum as described above, and a tip of the automatic feeding device that swings through an actuator. In addition to providing a frame, a crimping means for crimping the strip material to the forming drum from the bottom side is provided at the tip of the swinging frame, making it possible to automatically feed the strip material to the forming drum in a narrow space. The work of transferring the strip material is easy and the work efficiency is very good, and all the work from feeding the strip material to pressing it onto the forming drum can be done automatically, so productivity can be significantly improved. effective.

[Brief explanation of drawings]

Fig. 1 is a side view of an automatic feeding device embodying the present invention, Fig. 2 is a plan view of Fig. 1, and Fig. 3 is a side view of the automatic feeding device showing a state in which a strip material is being fed to a forming drum. , 4th
5 is a side view of FIG. 4, FIG. 6 is a front view of FIG. 4, and FIG. 7 is an explanatory view showing the toe-in angle of the shoulder guide roll. l... automatic supply device, 9... rocking frame, 10.
...actuator, 18...-crimping means (pressing roller), 100... forming drum, W... strip-shaped material.

Claims (1)

[Claims] An automatic feeding device movable in a direction perpendicular to the feeding direction of the strip material to be fed to the forming drum is disposed, and a swing frame is disposed at the tip of the automatic feeding device via an actuator. 1. An automatic feeder for a strip-shaped material, characterized in that a pressure-bonding means is provided at the tip of a swinging frame to pressure-bond the strip-shaped material to a forming drum from the lower surface side.