JPS5925165Y2 - Feeding device in cutter - Google Patents

Description

[Detailed description of the invention] The present invention is a cutter for cutting medicines, in which a pair of rolls are connected to a receiving opening provided in the body of the cutter to feed the material to be cut toward the cutting mechanism inside the body. This invention relates to an improvement in a feeding device configured by mounting shafts facing each other.

As mentioned above, in a cutter that feeds the material to be cut to the cutting mechanism installed inside the machine using a pair of opposingly rotating feed rolls, the pair of feed rolls rotate oppositely to each other. Since the material to be cut is forcibly fed into the cutting mechanism inside the machine with the material being held in the gap between the two, it is possible to cut an excessive amount of material that exceeds the processing capacity of the cutting mechanism. There are cases where the material is forcibly fed towards the cutting mechanism, and when this happens, the cutting mechanism becomes stuck with the material to be cut and does not move, causing the material to be cut to be forcibly fed. There is a problem that requires very troublesome work to remove.

The present invention was made to solve this problem, and if the material to be cut gets stuck in the cutting mechanism, the processing becomes extremely troublesome. The purpose of this is to reliably prevent an excessive amount of material to be cut from being fed into the cutting mechanism when the material is supplied to the cutting mechanism.

The device of the present invention, which is a distant relative of this object, has two feed rolls arranged in a machine frame housing the cutting mechanism of the cutter and facing each other in a pair at the receiving opening of the cutter. In a cutter feeding device in which the feed rolls are mounted in parallel and one of the feed rolls is supported so as to move forward and backward relative to the other feed roll, the two feed rolls are connected from the input shaft of the cutter. A reversing mechanism is installed in the transmission mechanism that transmits rotational power to each of the rotational shafts, which operates to reverse the direction of rotation by widening the facing distance between the two feed rolls. The rotation direction of the feed roll is reversed when cutting material is supplied, so that when an excessive amount of material to be cut is fed, the excessive amount of material to be cut is removed by the cutting mechanism. The device is characterized in that it is moved in a direction in which it is pulled away from the container, thereby reliably preventing the occurrence of clogging.

Next, an example of implementation will be explained in detail according to the drawings.
In the figure, A is a cutter according to the present invention configured as a straw cutter for a combine harvester that receives and cuts the threshed waste straw discharged from the threshing section B of the combine, and 1 is a machine casing-shaped cutter. The machine casings 2 and 3 of the cutter A, which are the former, are arranged in the receiving port 4 of the cutter A and the machine casing 1
5 is a cutting mechanism consisting of a fixed blade 50 and a rotary blade 51 for cutting the material to be cut fed by the feeding rolls 2 and 3; 6; 6 is a cutting chamber installed in the inner cavity of the machine frame 1 to accommodate the rotary blade 51 of the cutting mechanism 5; 60 is a discharge port for discharging the cut material; 61 is installed in the discharge port 60; The discharge gutter a is a cutter shaft that drives and rotates the aforementioned rotary blade 51 and serves as an input shaft for the cutter A.

The feed roll 2 and the feed roll 3 are mounted on the machine frame 1 with parallel shafts facing each other as a pair, so that the bearing member 31 of the rotating shaft 30 of the feed roll 3 located above is It is movably fitted into a long hole 10 provided in the machine frame 1 extending in the direction toward the rotating shaft 20 of the feed roll 2, and by its movement, the facing distance d between the feed rolls 2 and 3 can be freely changed. The upper feeding roll 3 is biased by a spring (not shown) acting on the bearing member 31 so as to be pushed out in a direction that reduces the facing distance d, and the shaft support position is fixed. The rotating shaft 20 of the lower feed roll 2 is connected to the cutter shaft a, which is attached to the aforementioned manual shaft, via the transmission mechanism W, and is pivoted from the rotating shaft 20 of the fixed feed roll 2. This is no different from conventionally known systems in that the position is transmitted to the rotary shaft 30 of the movable feed roll 3 via an appropriate transmission mechanism (not shown).

Therefore, from the cutter shaft a, which is the input shaft, the rotary shaft 2 of the feed roll 2 on the fixed side whose shaft support position is fixed.
As shown in FIG. 2, the transmission mechanism W that transmits rotational power to the cutter shaft a includes a transmission gear 70 provided on the cutter shaft a, an intermediate gear 71, a reversing gear 72, and a feed roll 2 on the fixed side.
A transmission gear 73 provided on the rotating shaft 20 is used for gear transmission.

The intermediate gear 71 and reverse gear 72 thereof are
The feed roll 2 on the fixed side is rotatably supported by a stay 80 that is loosely fitted around the rotation shaft 20 of the feed roll 2 on the fixed side, and the stay 80 is supported in a state in which the feed roll 2 on the movable side is always in mesh with each other. A connecting rod 81 extending toward the rotating shaft 30 of the movable feed roll 3 is integrally formed, and a long hole 82 formed along the longitudinal direction of the connecting rod 81 is connected to the rotating shaft of the movable feed roll 3. Insert 30,
Further, the other end of a regulating link 83 whose one end is pivotally supported on the machine frame 1 is rotatably coupled to the protruding end of the connecting rod 81, and a regulating spring 84 is also coupled to the movable feeding roll. 3 is close to the fixed feed roll 2,
As shown in FIG. 2, the transmission gear 70 and the intermediate gear 7
1, the reversing gear 72, and the transmission gear 73, the rotational power is transmitted to the rotating shaft 20 of the fixed feed roll 2, and when the movable feed roll 3 moves far away from the fixed feed roll 2, , the connecting link 81 is pushed out in the direction of the arrow in FIG. 5 by the movement of the rotating shaft 30 of the movable feed roll 3, and the stay 80 is rotated to the state position shown in FIG. As shown in FIG. 3, the reversing gear 72 directly meshes with the transmission gear 70 provided on the cutter shaft a, leaving the intermediate gear 71 with play, and the rotating shaft 20 of the fixed feed roll 2 A reversing mechanism Y is configured to reverse the direction of rotation of the rotary power transmitted to the rotary power.

Next, to explain the function and effect, a cutter that forcibly feeds the material to be cut toward the cutting mechanism inside the machine by a pair of feed rolls installed at the receiving port increases the throughput of the cutting mechanism. Even if an excess amount of the material to be cut is supplied to the feed roll, it is forcibly fed, so the material to be cut is firmly caught in the cutting mechanism, and the cutting mechanism becomes unable to move. However, the cutter feeding device according to the present invention has a problem in that the amount of cut material that is supplied is too large and the cut material has to be removed through troublesome work. When the facing distance d between the roll 2 and the feed roll 3 becomes abnormally wide, the displacement operation of the movable feed roll 3 at that time activates the reversing mechanism Y, and the rotation of the feed rolls 2 and 3 is activated. Since the rotation direction is switched in the opposite direction, the material to be cut that has been supplied in excess is transferred to the cutting mechanism 5 before being supplied to the cutting mechanism 5 by the reverse operation of the feed rolls 2 and 3. The cutting mechanism 5 will be ejected in the opposite direction away from the
By supplying an excessive amount of the material to be cut, it is possible to reliably prevent the material to be cut and the cutting mechanism 5 from becoming tightly interlocked and unable to move.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional side view of a cutter that can implement the present invention, Figure 2 is a side view of a cutter that can implement the present invention;
The figure is a side view of the main part of the above in a normal state, Fig. 3 is a side view of the main part of the above in a state where the facing distance between the feed rolls is abnormally wide, and Figs. 4 and 5 are explanatory diagrams of the operation. . Explanation of drawing symbols, A...Cutter, 1...
...Machine frame, 2...Fixed side feeding roll, 20.
... Rotating shaft as above, 3... Infeed roll on movable side, 30... Rotating shaft same as above, a...
・Cutter shaft, W...Transmission mechanism, 70...
...Transmission gear, 71...Intermediate gear, 72...
...Reverse gear, 73...Transmission gear, Y...
... Reversing mechanism, 80... Stay, 81...
... Connecting rod, 82 ... Long hole, 83 ...
- Regulation link, 84... Regulation spring.

Claims (1)

[Scope of utility model registration request] A machine frame 1 houses a cutting mechanism 5 of a cutter A, and a pair of two opposite cutting mechanisms are arranged at the receiving opening 4 of the cutter A.
Feeding of cutter A, which has book feed rolls 2 and 3 mounted on parallel shafts, and one feed roll 3 of these feed rolls 2 and 3 is supported so as to be able to move forward and backward relative to the other feed roll 2. In the apparatus, a transmission mechanism W that transmits rotational power from an input shaft a of a cutter A to each rotating wheel 20.30 of the two feed rolls 2 and 3 is connected to A feeding device for a cutter, characterized in that it is provided with a reversing mechanism Y that operates to reverse the direction of rotation as the distance d widens.