JPH0324335Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a strand refining device, and more specifically, the present invention relates to a strand refining device, and more specifically, the present invention relates to a strand refining device, and more specifically, the present invention relates to an apparatus for refining strands. This invention relates to a strand refining device which can be easily adjusted, can refine the strand in parallel even when adjusting the interval, and can smoothly transmit rotational force to a feed roll.

[Conventional technology]

Conventionally, as shown in FIGS. 4 and 5, this type of device has two walls 31, 31 on both sides, and
A first feed roll 32 disposed between 1 and 31;
a second feed roll 34 disposed between arc-shaped holes 33, 33 bored in the side walls 31, 31, respectively;
and are connected by links 35, 35 on the outside or inside of the second feed roll 34 and both side walls 31, 31,
a swing shaft 36 arranged so that the distance between the first feed roll 32 and the second feed roll 34 can be adjusted;
The rear side walls 3 of the strand guide path 37 formed by the first feed roll 32 and the second feed roll 34
One structure is known that includes a fixed blade 38 disposed between the blades 1 and 31, and a rotary blade 39 disposed opposite the fixed blade 38. (For example, Tokuko Sho 54
-Refer to Publication No. 36938).

Then, this device transfers the strand 40 made of the thermoplastic material, which has been sent while being cooled by cooling water, to the first feed roll 32 and the second feed roll 3.
The fixed blade 38 and the rotating blade 39 are guided to the strand guide path 37 while exerting a traction force between
The material is shredded according to the method. on the other hand,
Depending on the size of the strand 40 and other factors, the distance between the first feed roll 32 and the second feed roll 34 is adjusted, and the traction force applied to the strand 40 is changed by the operation of the swing shaft 36, and by the links 35, 35. Arc-shaped hole 3 bored in both side walls 31, 31
3, 33, the second feed roll 34 is oscillated.

However, this device is designed to finely granulate the strands of thermoplastic material that are sent while being cooled by cooling water, and therefore the inside of the device is flooded with cooling water. Therefore, in order to prevent water leakage, this device is configured to seal the arcuate hole with a bellows or the like. However, with this seal configuration, if the second feed roll only rotates and is not oscillated, there are not many problems, but if it is also oscillated, there is a greater risk of damage as the number of oscillations increases. However, there is a disadvantage that the rate of water leakage is high. Further, although this device has a configuration in which the arcuate holes are bored in both side walls, there is also the disadvantage that the machining is complicated.

By the way, although it is not a strand refining device, as a related device, there is a configuration that solves the above-mentioned problem. An eccentric bearing device for a feed roll has a configuration in which a roll is rotatably provided, a connecting member is attached and fixed between the shaft of the feed roll and the eccentric bearing, and the eccentric bearing is rotated. It has been proposed (Jikko 54-
(See Publication No. 16121).

Therefore, by applying the present invention as a strand guide path interval adjustment mechanism of the strand refining device described above, the above-mentioned problem can be solved.

[The problem that the idea attempts to solve]

However, in the case of this configuration, when adjusting the strand guide path interval, the eccentric bearing (disk) and the shaft of the feed roll are connected and integrated with a connecting member, and the eccentric bearing is rotated together with the feed roll. , the connecting member is detachable, so there are the following problems. In other words, work efficiency is poor because work is required to attach and remove the connecting members.

When adjusting the strand guideway interval, in parallel,
Strand grain refinement is not possible.

There are other problems.

The present invention has been devised in response to the above-mentioned points, and its purpose is to simplify the adjustment of the strand guide path interval and to reduce the grain size of the strands even during the adjustment. An object of the present invention is to provide a strand refining device capable of performing the above operations in parallel and smoothly transmitting rotational force to a feed roll.

[Means to solve the problem]

A strand refining device as a means for solving the above problem includes a first feed roll disposed between the left and right side walls, and circular holes formed in the both side walls adjacent to the first feed roll. is fitted to the disc through an O-ring in the circular hole, and a swing shaft is disposed between the center portions of the left and right discs, and a second A feed roll is arranged so as to form a strand guide path between it and the first feed roll, one end of the swing shaft is connected to the swing source transmission shaft joint, and the other end is connected to the second feed roll for rotation. It is loosely fitted into the drive source transmission sprocket, and the second feed roll rotational drive source transmission sprocket is connected to the end of the second feed roll so that the rotational drive source can be transmitted through the gear, and the rear part of the strand guide path is A fixed blade and a rotary blade facing the fixed blade are disposed between the both side walls of the oscillation source, and the oscillation source transmission shaft joint connects the oscillation shaft to the second
The feed roll is oscillated to automatically adjust the strand guide path interval, and the second
The second feed roll is rotated in the opposite direction to the first feed roll via a feed roll rotation drive source transmission sprocket to make the strand finer.

[Effect]

The strand refining device of the present invention, which is based on the above-mentioned configuration, is capable of adjusting the distance between the strand guide paths by using bearings at eccentric positions of the disks fitted to both side walls. By rotating the disposed second feed roll with the swing source transmission shaft joint via the swing shaft and the disk, adjustment can be easily performed.

In addition, since the second feed roll is connected via a gear to the second feed roll rotation drive source transmission sprocket, which loosely fits and holds the swing shaft that is the central axis of the disk, the strand guide path interval can be adjusted. It functions so that the second feed roll can be smoothly rotated and rotated in parallel even when the second feed roll is moving.

Therefore, according to the strand refining device of the present invention, the adjustment of the strand guide path interval is simplified, and even during the adjustment, the strand refining can be performed in parallel, and the feed roll can smoothly transmit rotational force to.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

Here, FIG. 1 is a partially cutaway plan view showing essential parts of the device of the present invention, FIG. 2 is a sectional view taken along line A--A in FIG. 1, and FIG. 3 is a schematic side view.

The strand refining device of this embodiment basically includes left and right side walls 1, 1, a first feed roll 2,
It is composed of a second feed roll 3, a swing shaft 4, a fixed blade 5, and a rotary blade 6.

The left and right side walls 1, 1 are walls that form the outer shape of the device, and the first feed roll 2 is disposed thereon.
The first feed roll 2 is attached to both side walls 1, 1 at its end portions 7, 7 so as to be able to rotate (rotate or turn) by means of bearings 8, 8, and is connected via a sprocket 27 by another power transmission mechanism. Rotational motion is now provided.

The second feed roll 3 is located at a position facing the first feed roll 2, and the eccentric position 11 of the disks 10, 10 is disposed in circular holes 9, 9 bored in both side walls 1, 1. , 11, and is rotatably mounted at its ends 12, 12 by bearings 13, 13, similarly to the first feed roll 2.
Further, a gear 14 is disposed at one end 12 of the second feed roll 2, so that the second feed roll is rotated and rotated. The first feed roll 2 and the second feed roll 3 form a strand guide path 15.

The swing shaft 4 is a support shaft for swinging the second feed roll 3 and adjusting the distance between the first feed roll 2 and the second feed roll 3, and is a support shaft for swinging the second feed roll 3 and adjusting the distance between the first feed roll 2 and the second feed roll 3. , 16, and its end 1
7 and 17 are fixed with keys 18 and 18. A sprocket 20 is disposed at one end 17 via a gear 19 that engages with a gear 14 disposed at the end 12 of the second feed roll 3. The sprocket 20 is given rotational motion by a chain or the like. In addition, here gear 19,
The sprocket 20 and the end 17 of the swing shaft 4 are not keyed and are free. That is, the swing shaft 4 is loosely fitted into the sprocket 20, and the sprocket 20 is connected to the second sprocket via the gears 19, 14.
Rotation or rotational force can be transmitted to the feed roll 3.

Further, a shaft joint 29 for swinging the second feed roll 3 via the keyed discs 10, 10 is disposed at the other end 17. Further, lid members 21, 21 are disposed on both the disks 10, 10 from the outside of the side walls 1, 1, respectively.

Then, the outer peripheral edges 22, 22 of the disks 10, 10 and the peripheral edges 23, 23 of the circular arc holes 9, 9 of the side walls 1, 1.
and are sealed by an O-ring 2. This ensures the sealing effect.

The fixed blade 5 is disposed between the rear side walls 1, 1 of the strand guide path 15. The rotary blade 6 is disposed opposite the fixed blade 5, and the blade 25 and shaft 26 are separated for easy replacement, and Stellite, which has excellent wear resistance, is welded to the blade edge. has been done.

The strand refining device of the present embodiment based on the above configuration first transfers the strand to the first feed roll 2 via the sprocket 27 and the bearings 8, 8, and the sprocket 2 by a transmission mechanism (not shown).
0, the second feed roll 3 is provided with a rotation axis through gears 19, 14 and bearings 13, 13, respectively. Here, rotational force is applied to each of the first feed roll 2 and the second feed roll 3 in the direction of the arrow. At the same time, the rotary blade 6 is also rotated in the direction of the arrow.

Then, when the strand 28 is guided between the first feed roll 2 and the second feed roll 3, the strand 28 is guided between the first feed roll 2 and the second feed roll 3.
8 is held between both rolls 2 and 3, guided to the strand guide path 15 by applying a certain traction force, and then guided between the fixed blade 5 and the rotating blade 6, and is guided by the double blades 5 and 6. Cut and finely divided.
In this way, the strand 28 becomes fine-grained.

Here, the first feed roll 2 and the second feed roll 3
The distance between the strand 28 and the strand 28 is automatically adjusted by swinging depending on the size of the strand 28. This swing adjustment is performed by using an air cylinder or the like to move the disks 10, 10, which are keyed to the swing shaft 4, through the shaft joint 29, to the side walls 1,
The second feed roll 3 is made to swing by swinging within circular holes 9, 9 bored in the second feed roll 3. This allows automatic adjustment to any desired interval. Note that the circular holes 9, 9 bored in both side walls 1, 1 and the discs 10, 10 are sealed by an O-ring 24, so that sliding can be performed smoothly. Ru.

[Effect of idea]

As is clear from the above description, according to the strand refining device of the present invention, the second
A feed roll is provided, and a swing source transmission shaft joint is connected to the sliding shaft, which is the central axis of the disk, and the swing source transmission by the swing source transmission shaft joint can achieve the above-mentioned swing. Since the second feed roll is rotated and rotated via the shaft and disk, if it is necessary to adjust the interval of the strand guide path, the swing shaft, disk,
This has the effect of simplifying the adjustment work since it can be done by operating the swing source transmission shaft joint while the second feed roll is in its current state.

Further, according to the strand refining device of the present invention, the second feed roll is connected via a gear to the second feed roll rotation drive source transmission sprocket, which loosely fits and holds the swing shaft that is the central axis of the disk. Since they are connected, even when adjusting the strand guide path interval, the second feed roll can be rotated and rotated, which has the effect of making the strand finer in parallel with the adjustment. At the same time, it has the effect that the rotational force can be smoothly transmitted to the second feed roll.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway plan view showing the main parts of the device of the present invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3
The figure is a schematic side view, FIG. 4 is a schematic side view of a conventional device, and FIG. 5 is a schematic side view showing main parts of the conventional device. 1... Both side walls, 2... First feed roll, 3...
2nd feed roll, 4... Swing shaft, 5... Fixed blade,
6...Rotary blade, 9...Circular hole, 10...Disc plate,
15...Strand guideway, 24...O ring.

Claims (1)

[Scope of utility model registration request] A first feed roll is disposed between the left and right side walls, a circular hole is provided in the both side walls adjacent to the first feed roll, and a disk is fitted into the circular hole via an O-ring, A swing shaft is disposed between the center portions of the left and right disks, and a strand guide path is formed between the second feed roll and the first feed roll via a bearing at an eccentric portion of the disk. one end of the swing shaft is connected to the swing source transmission shaft joint, the other end is loosely fitted to the second feed roll rotation drive source transmission sprocket, and the second feed roll rotation drive source transmission sprocket is connected to the second feed roll rotation drive source transmission sprocket. A fixed blade is connected to the end of the second feed roll through a gear so as to transmit a rotational drive source, and a fixed blade and a rotary blade facing the fixed blade are connected between the both side walls at the rear of the strand guide path. The second feed roll is oscillated by the oscillation source transmission shaft joint via the oscillation shaft and the disc, and the strand guide path interval can be automatically adjusted. A strand refining device, characterized in that the strand can be refined by rotating a second feed roll in the opposite direction to the first feed roll via a second feed roll rotational drive source transmission sprocket. .