JPH0575452B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for changing the direction of a substance kneaded by rolls and feeding the same into the rolls again.

(Prior Art) When a substance is kneaded using rolls, if the substance is passed through the rolls only once, the substance is only stretched in one direction, resulting in insufficient kneading. Therefore, it is necessary to increase the degree of kneading by changing the orientation of the material once kneaded and feeding it into the rolls again. Conventional devices of this type include those shown in FIGS. 4 to 6.
This device consists of a rectangular chute 6 whose length is slightly longer than the width of the roll 1 and whose width is narrow, a rotary table 3 that supports the chute 6 on one side of its upper surface and is rotatable, and a rotary table 3. It is installed near the roll 1 and includes a lifting device 4 that moves up and down, and a pair of scraping plates 7 that can enter the chute 6 in the raised position and move forward toward the roll 1.
receives the material to be kneaded from the roll 1 in a position parallel to the roll 1 (see Fig. 6a) and in a lowered position (see Fig. 4), and then the chute 6 is rotated 90° to the left in the raised position. Then, in a state perpendicular to the roll 1 (see Fig. 6b), the scraper plate 7 moves forward, pushes out the material to be kneaded, and drops it onto the left half of the roll 1 (see Fig. 5). ), then the chute 6 is in a position parallel to the roll 1 again and receives the material to be kneaded from the roll 1 in the lowered position, and then the chute 6 is in the raised position and this time reversely rotates 90 degrees to the right.
The scraping plate 7 rotates to take a position perpendicular to the roll 1 (see Fig. 6c), and the scraping plate 7 advances again to push out the material to be kneaded and drop it onto the right half of the roll 1, and then again. Shoot 6 is in its original state (6th
(see Figure d) to complete one cycle.

(Problem to be solved by the invention) The above conventional device has the following drawbacks.

First, when the material to be kneaded A is dropped from the chute 6 onto the roll 1, the material to be kneaded A is pushed out by the scraping plate 7, so if the material to be kneaded is a hard material, it remains in the form of a sheet and has no directionality. However, if the material to be kneaded is a soft material, it loses its shape when pressed by the scraping plate 7 and loses directionality, so there is a drawback that direction change cannot be achieved. . Next, when the material to be kneaded is dropped from the chute 6 onto the roll 1, it is thrown only into the left or right half of the roll 1, so the roll 1
The distribution of the material to be kneaded (A) on the top is uneven and does not spread uniformly across the entire width of the roll 1, so that a portion of the adjacent rolls 1 come into direct contact without the material to be kneaded (A) acting as a lubricant. The frictional heat may cause the roll 1 to seize. Furthermore, the provision of the scraping plate 7 and its auxiliary devices increases the size of the apparatus.

The present invention is an apparatus that eliminates the above-mentioned drawbacks, that is, even when a soft material to be kneaded is re-injected into the rolls, the direction of the material to be kneaded can be reliably changed, and the entire width direction of the rolls can be uniformly coated. The object of the present invention is to provide a re-feeding device for changing the direction of kneaded materials in a roll-type kneading machine, which can re-feed the kneaded materials in a well-balanced manner so that the kneaded materials are distributed, and can further downsize the device.

(Means for Solving the Problems) In order to achieve the above object, the re-feeding device for changing the direction of the material to be kneaded in the roll kneading machine of the present invention has a length slightly longer than the width of the roll 1 and a width of the roll 1. 1, a rotary table 3 that supports the conveyor 2 and is rotatable, and a lifting device 4 that moves the rotary table 3 up and down, and is installed near the roll 1. , when the conveyor 2 is in a position parallel to the roll 1 and in a lowered position, it receives the material to be kneaded from the roll 1 on the upper surface of its horizontal half, and then the conveyor 2 rotates 180° and transfers it to the upper surface of the remaining horizontal half. The conveyor 2 receives the material to be mixed from the roll 1, then rotates 90 degrees in the raised position, takes a perpendicular attitude to the roll 1, drives its belt 5, and drops the material to be kneaded onto the roll 1. death,
After that, the conveyor 2 rotates 90 degrees and descends again in a posture parallel to the rolls 1, thereby completing one cycle.

(Example) An example will be described with reference to FIGS. 1 to 3. A plurality of rolls 1 are arranged in parallel on the same horizontal plane, and an apparatus of the present invention including a conveyor 2, a turning table 3, and a lifting device 4 is installed near the rolls 1 at the ends thereof. The conveyor 2 has a width that is slightly longer than the width of the roll 1 and approximately the same as the width of the roll 1, and a drive motor 8 is disposed at the base end in the longitudinal direction, and the opposite end is open. The belt 5 on the upper surface side is configured to move from the end side toward the tip end. The conveyor 2 is mounted on a turning table 3 that can freely rotate in both left and right directions, and the turning table 3 is further mounted on a lifting device 4 that can move up and down.

In the apparatus of the present invention, first, the conveyor 2 is in a position parallel to the roll 1 (see Figure 3a) and in a lowered position receives the material to be kneaded from the roll 1 onto the upper surface of its horizontal half (see Figure 1); Next, it ascends and rotates 180°, then descends again and receives the material to be kneaded 4 from the roll 1 onto the upper surface of the remaining horizontal half of the conveyor 2 (the third
(see Figure 3b), then rises, rotates 90 degrees, assumes a vertical position with its tip facing the roll 1 (see Figure 3c), and moves onto the roll 1 by operating the belt 5. The material to be kneaded (A) is dropped and thrown in (see Figure 2), and then returned to the previous state (see Figure 3).
(see Figure d) is configured to complete one cycle. In the above example, the conveyor 2 is rotated 180 degrees in the raised position, but this is because there is no rotation space under the roll 1 in the lowered position. Of course, if possible, it may be rotated in the lowered position without rising.

(Operation and Effect) The structure of the present invention is as described above. First, when the material to be kneaded is re-injected onto the rolls, a conveyor is used instead of the scraping plate of the conventional device, so even if the material to be kneaded is a soft material. The direction change is reliably achieved without losing its shape even if Since the material to be kneaded is also received on the upper surface of the remaining horizontal half and then re-injected into the roll, the material to be kneaded is uniformly distributed over the entire width of the roll without being concentrated in a part of the roll. Burn-in is prevented, and furthermore, since there is no need to provide a scraping plate and its auxiliary equipment as in conventional devices, the device can be made more compact.

[Brief explanation of the drawing]

Figures 1 to 3 show examples of the present invention. Figure 1 is a side view of the state in which the materials to be mixed are received from the rolls, and Figure 2 is a side view of the state in which the materials to be mixed are re-injected into the rolls. The side view and FIG. 3 are plan views showing changing states in which the conveyor rotates during one cycle. Furthermore, Figures 4 to 6 show conventional examples, with Figure 4 being a side view of the state in which the material to be kneaded is received from the rolls, and Figure 5 being a side view of the state in which the material to be kneaded is re-injected into the rolls. , FIG. 6 is a plan view showing the changing state in which the chute rotates during one cycle. 1... Roll, 2... Conveyor, 3... Rotating table, 4... Lifting device, 5... Belt, 6...
Shoot, 7... scraping board, 8... drive motor, i... material to be kneaded.

Claims (1)

[Claims] 1. A conveyor 2 whose length is somewhat longer than the width of the roll 1 and whose width is approximately the same as the width of the roll 1, a rotary table 3 that supports the conveyor 2 and is rotatable, and an elevator that moves the rotary table 3 up and down. First, the conveyor 2 receives the material to be kneaded from the roll 1 on the upper surface of its horizontal half in an attitude parallel to the roll 1 and in a lowered position, and then Conveyor 2 rotates 180 degrees and receives the material to be kneaded from roll 1 on the upper surface of its remaining horizontal half, and then conveyor 2 rotates 90 degrees in the raised position and assumes a position perpendicular to roll 1 to transfer the material to the belt. 5 to drop and throw the material to be kneaded onto the roll 1,
The conveyor 2 then rotates 90 degrees and descends again in a position parallel to the rolls 1, thereby completing one cycle of the kneading machine. Device.