JPH10296325A - Strand delivery and lead-in speed regulating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To send the strand from an extruding machine into a pelletizer at the stable average speed and to prevent a pellet from being unequal by connecting the upper roll of a strand taking-over machine to the lower driving roll with plural intermediate pulleys and synchronously driving/rotating. SOLUTION: When leading-in the strand sent from the extruding machine between the lower roll 3 and the upper roll 4 in a coating part and delivering, the lower roll 3 being main driving is rotated with the turning of the driving pulley 6. In this case, the pulley 8 is connected to the lower roll 3, the rotation of the pulley 12 of the upper roll 4 is transmitted via the intermediate pulleys 13, 14 interlocking with this to rotate the upper roll 4. Therefore, the generation of sliding or the like due to the rotation of both the lower roll 3 and the upper roll 4 is dissolved and the strand is delivered at the stable speed. Also, the delivering speed is further stabilized by the loose pressing and contacting motion of the pressing arm 17 of the upper roll 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an upper roll and a lower roll which are driven when a strand fed from an extruder passes between an upper roll and a lower roll having a drive in a take-up machine. The present invention relates to a strand feed-in / draw-out speed adjusting device for driving rotation and feed.

[0002]

2. Description of the Related Art Conventionally, a strand passing through a take-up machine of this type reaches a take-up machine through an extruder, and when sent out between upper and lower rolls of the take-up machine, an upper roll serves as a guide roll. Generally, the lower roll only plays a role of driving. Therefore, there is a problem that the strand passing between the upper and lower rolls having different rotations is pulled in at an average speed due to slippage or the like and cannot be sent out.

[0003]

As described in the description of the prior art, the strands passing through the take-up machine are not uniform in speed, so that there is a disadvantage that the cutting by the pelletizer is not entirely uniform and many defective products are generated. . The present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to interpose a plurality of intermediate pulleys between an upper roll and a lower roll to be driven in a take-up machine for a strand fed from an extruder. , And the strands are sent out to the pelletizer at a stable average speed by the upper and lower rolls.

[0004]

In order to achieve the above object, according to the present invention, a take-up machine main body located in front of a pelletizer is provided with an opposing side frame on an upper portion, and a lower roll is installed on the side frame. At the same time, a drive pulley having a belt mounted on one end of the lower roll and an interlocking pulley are mounted on the other end. A holding arm for the upper roll is mounted on the opposing arm mounting plate connected to the side frame. An upper roll is installed on the holding arm of the upper roll. An interlocking coil spring is interposed at one end of the upper roll, and a rotary pulley is mounted on the upper roll. A plurality of intermediate pulleys are interposed and interlocked with the interlocking pulley, and the upper roll and the lower roll are simultaneously driven in conjunction with the rotating pulley of the upper roll.

[0005]

The operation of the take-up machine constructed as described above will be described. The strand (25) sent from the extrusion molding machine is explained.
The lower roll (3), which is driven by the rotation of the driving pulley (6) when it is fed out, is connected to the lower roll (3) and the upper coating roll (4). The interlocking pulley (8) also rotates, and the intermediary pulley (13) and the intermediary pulley (14) interlock with the interlocking pulley (8) to rotate the pulley (1) of the upper roll (4).
The rotation is transmitted to 2) to rotate the upper roll (4). Therefore, by rotating both the lower roll (3) and the upper roll (4), the strand (25) can be fed at a stable speed. In addition, the pressing arm (17) (17) of the upper roll (4) is gently pressed into contact with the large and small diameter of the strand (25) by the movement of the upper roll (4). And feed it to the pelletizer.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
The take-off machine body (1) is located between the extruder and a pelletizer (not shown). As shown in FIG. 1, the take-up machine main body (1) is movably installed, and is connected to the side frames (2) (2) and the side frames (2) (2) opposed to each other on the upper portion, and the upper roll (4) is connected. Arm mounting plates (16) and (16). Next, a lower roll (3) is installed on the side frames (2) and (2) by a shaft (5), and an upper roll (4) is installed on the arm mounting plates (16) and (16). I have. Next, the shaft portion (5) of the lower roll (3) is provided with a drive pulley (6) having a drive belt (7) at one end and a side frame (2) at the other end. An interlocking pulley (8) made of rubber or the like is mounted on the outside of the shaft. The upper roll (4) is rotatably fixed to the tip of a holding arm (17) (17) provided inside the arm mounting plate (16) (16). At one end of the upper roll (4), an interlocking coil spring (10) is interposed on an extension of the shaft (9) of the upper roll (4), and the end of the upper roll (4) is made of rubber or the like. A rotary pulley (12) is mounted on the shaft. A pulley mounting plate (11) is provided inside the rotary pulley (12), and an intermediate pulley (14) made of rubber or the like is mounted on the mounting plate (11) via a pressing spring (18). It is set up. The intermediate pulley (14) is linked to the rotary pulley (12). Further, an intermediate pulley (13) made of rubber or the like for rotating both pulleys is interposed between the interlocking pulley (8) and the intermediate pulley (14). Next, at the rear end of the holding arm (17), a lifting / lowering adjusting body (20) having an adjusting spring (19) for the upper roll (4) is provided. The take-up machine body (1) is provided with a support (21) at a part of the upper part, and the support (21) has a strand (2).
An elevating rod (22) for pressing the looseness of 5) is provided, and the elevating rod (22) has a pressing roll (23) at a lower end.
Reference numeral (24) is a guide roll, which is juxtaposed in front and rear.
(26) shows a prime mover that operates the drive belt (7) installed inside the take-off machine body (1).

[0008]

According to the apparatus for controlling the speed of feeding and retracting the strands of the present invention having the above-described structure, the apparatus for feeding and retracting by the drive of only the lower roll described in the prior art can be used. In addition, there is an effect that the guidance can be stably guided at an average speed and that the upper roll and the lower roll can be simultaneously operated in the feeding direction by one driving operation, so that there is an effect that power can be remarkably saved. Since the upper roll and the lower roll rotate simultaneously, there is an effect that the strands passing therethrough can be smoothly and lightly fed without slipping or abrasion between the upper and lower rolls. In addition, since a pressing spring is provided at one place of a plurality of intermediate pulleys provided between the interlocking pulley and the rotating pulley, the intermediate pulleys are constantly pressed, and are reliably linked to the upper roll from the lower roll, Each pulley has the effect of being able to join and move independently of the large and small diameter gap of the strand. Further, since the interlocking coil spring is interposed between the upper roll and the rotary pulley, there is no fear that the coil spring is damaged due to a buffering action, and the moving is ensured.

[Brief description of the drawings]

FIG. 1 is a side view showing the entire take-off machine body of the present invention.

FIG. 2 is a plan view of the take-off machine body of the present invention.

FIG. 3 is a perspective view of the main part of the present invention in which only a main part is partially omitted.

FIG. 4 is a side view of the present invention in which only a main part in FIG. 3 is partially omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Take-up machine main body 2 Side frame 3 Lower roll 4 Upper roll 5 Shaft 6 Drive pulley 7 Drive belt 8 Interlock pulley 9 Shaft 10 Interlock coil spring 11 Mounting plate 12 Rotary pulley 13.14 Intermediate pulley 16 Arm mounting plate 17 Press Arm 18 Pressing spring 20 Elevating adjustment body 24 Guide roll 25 Strand

Claims (1)

[Claims] 1. A take-up machine body (1) has opposed side frames (2) and (2) at an upper portion, and a lower roll (3) is erected on the side frames (2) and (2). A drive pulley (6) having a drive belt (7) mounted on one end of the lower roll (3) and an interlocking pulley (8) on the other end are pivotally mounted on the side frame (2).
The holding arms (17) and (17) of the upper roll (4) are mounted on the arm mounting plate (16) connected to (2),
An upper roll (4) is provided at one end of each of the holding arms (17) and (17), and the upper roll (4) is provided with an interlocking coil spring (10) at one end of the upper roll (4).
The intermediate pulley (13) and the intermediate pulley (1) are mounted on the interlocking pulley (8).
4) An apparatus for adjusting the feed-out / draw-in speed of the strand, wherein the apparatus is interlocked with the rotary pulley (12) of the upper roll (4).