JPH0417036Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to an automatic carrot leaf cutting device.

(Prior Art) Conventionally, there has been a proposal for an automatic carrot leaf cutting device that automatically separates the leaves from carrots with leaves and extracts only the roots.

(Problem to be solved by the invention) With the above-mentioned conventional device, for example, when there are variations in the size of carrots, it is difficult to cut the leaves at the appropriate position and at the appropriate angle, and sometimes A portion of the root apex may even be cut off and separated along with the leaf.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an automatic carrot leaf cutting device that makes it possible to cut only the carrot leaf at an appropriate position and at an appropriate angle. With the goal.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a state in which a carrot root guide roller and a leaf pulling roller both straddle the conveyor belt in this order along the upper surface of the conveyor belt in an oblique direction. In an automatic carrot leaf cutting device, which is equipped with a disk blade for cutting the leaves at one end of a conveyor belt, the rotating surface of the disk blade is set higher than the front circumferential surface of the carrot root guide roller. In addition to being able to move slightly backward toward the center axis,
A guide body for regulating the top surface of the carrot root along the disk blade is provided at the carrot entry side of the disk blade,
Further, the present invention is characterized in that a support body for maintaining the carrot root in a substantially horizontal position while being cut by the disk blade is disposed at a position slightly lower than the conveyor belt.

Although it is not essential, it is preferable to provide a feeding device that presses the carrot roots that have reached the vicinity of the disk blade at one end of the conveyor belt toward the disk blade.

(Function) The above-mentioned guide body and support body hold the carrot root in a constant position while it is being cut by the disc blade, and moreover, keep it in a roughly horizontal position, and the carrot is held at a certain angle by the rotating disc blade in a fixed position. It will be cut at

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

Fig. 1 is an overall perspective view of the device of the present invention, Figs. 2 and 3 are partially enlarged views, Fig. 4 is an explanatory view of the operation, and Fig. 5
The figure is a sectional view taken along the line XX in FIG. 4, and FIG. 6 is a sectional view taken along the line YY in FIG. 4.

In the figure, reference numeral 1 denotes an endless horizontal conveyor belt that is wound around a belt guide wheel 2 and a belt drive wheel 3. Reference numeral 4 denotes an input pulley fixed to the central shaft of the belt drive wheel 3, and the power of a motor (not shown) is transmitted through a belt transmission means.

Along the upper surface of the conveying belt 1, a carrot root guide roller 5 and a leaf pulling roller 6 are disposed in this order so as to straddle the conveying belt 1 in an oblique direction. At this time, the root guide roller 5 is a synthetic resin tube with a diameter of several centimeters with a fixed central shaft 7, and is disposed on the conveyor belt 1 with a constant gap. A spongy elastic material 9 is attached in a cylindrical shape around the outer periphery of the conveyor belt 8 so that the elastic material 9 comes into contact with the conveyor belt 1. The frame 13 is connected to the frame 13 via bearings 10, 11, 12, etc. so that both the center shafts 7 and 8 can rotate freely.
It is supported by The rotation of the input pulley 4 is transmitted to the tension roller 6 via a screw gear mechanism (not shown), a chain transmission 14, etc., and further transmitted to the guide roller 5 via another chain transmission 15. Eggplant.

Reference numeral 16 denotes a disk blade disposed at a position slightly lower than the conveyor belt 1 at the end of the trajectory P1 where the workpiece is guided by the travel of the conveyor belt 1 and the rotation of the guide roller 5; In addition to being aligned along both the guide trajectory and the vertical plane of the guide roller 5, the rotating surface is slightly moved backward from the front circumferential surface 5a of the guide roller 5 toward the center axis 7 of the guide roller 5 along the conveyance direction of the conveyor belt 1. (See Figures 4 and 6). This backward movement can be adjusted as appropriate.

The carrot entry portion of the disc blade 16 is provided with a guide body that restricts the top surface s of the carrot root (see FIG. 6) into sliding contact along the disc blade 16. As shown in FIG. 3, a plate member 17 with a hole 17a slightly larger than the disk blade 16 is inserted into the disk blade 1 through the same hole 17a.
6, and the plate member 17 is formed with a slit 17b through which the carrot leaf w2 passes.

Reference numeral 18 shown in FIG. 2 is an input pulley fixed to the rotation center shaft 19 of the disc blade 16, and a V-belt is connected between the pulley 19 and a driving pulley 20 concentrically fixed to the belt drive wheel 3. 21 is wound around, and the belt 21 is bent and guided by guide pulleys 22 and 23 supported by the frame 13, whereby the rotation of the input pulley 18 is transmitted to the disk blade 16.

Reference numeral 24 denotes a feeding device for the carrot root w1, and specifically, it is constructed as follows. That is, as shown in FIGS. 2 and 3, a sleeve 26 is fitted onto a bearing 25 fixed to the frame 13 so as to be rotatable at a certain position, and an arm 27 is fixed to the sleeve 26. A pulley body 28 is rotatably attached to the tip of the pulley body 28. One side of the pulley body 28 has an arcuate rod 29 covered with a soft material 29a such as rubber.
The bases of the arc rods 29, 29 are pivotally mounted in a symmetrical arrangement, and the tip sides of the arc rods 29, 29 are bulged out in the radial direction by spring force to maintain a constant posture as shown in the figure. When an external force toward the center in the radial direction acts on the tip side of the rod, the arcuate rods 29, 29 resist the spring force and swing around their bases in the directions of arrows f1 and f2 shown in FIG. The rotation locus circle is configured to reduce in diameter. On the other hand, an intermediate shaft 30 is fitted into the inner hole of the bearing 25 so as to be rotatable at a fixed position, and one end of the shaft 30 is in frictional contact with the pulley 23 through conical contact surfaces 23a and 31a. A driven wheel 31 is fixed at the other end, a driving pulley 32 is fixed at the other end, and a V-belt 33 is wound around the driving pulley 32 and the pulley body 28. Note that 34 is a tensioning device for the belt 33, and 35 and 36 are springs that pull the arm 27 downward.
The feeding device 24 constructed as described above operates to press the root of the carrot, which has been guided by the guide roller 5 and has reached the terminal position p1 of its guide trajectory, toward the disk blade 16.

Reference numeral 37 denotes a guide plate for guiding the fall of the carrot root w1, and is provided diagonally on the side of the conveyor belt 1, which is slightly lower than the top surface. A support 38 is provided on the upper surface of the guide plate 37 to support the root portion w1 of the carrot with leaves transferred from the conveyor belt 1 in a substantially horizontal position relative to the disk blade 16. That is, the support body 38 of this example is made up of two rods 39 and 40 coated with synthetic resin that intersect. One rod 39 supports the carrot root w1 from below, and the other rod 40 supports the carrot root w1. Resistance is applied to the root portion w1 to prevent it from coming off the rod 39 and falling due to gravity.

The operation of the above embodiment apparatus will be explained. The operator starts the motor (not shown) and pulls the input pulley 4.
After rotating, a plurality of carrots with leaves are supplied to the conveyance start end p2 of the conveyor belt 1. The carrot leaf part w2 of each carrot leaf w2 is slightly caught between the belt 1 and the belt 1 by the rotation of the guide aura 5, and is guided to the rear tension roller 6. Tame belt 1
The carrot leaf part w2 is pinched between the upper surface and pulled backward. Therefore, the carrot with leaves is sequentially guided in the direction f3 of the arrow along the front peripheral surface of the guide roller 5 in the posture shown in FIG. 4, and finally reaches the end position p1 of the guide trajectory of the roller 5. The carrot with leaves that has reached this point is no longer subjected to the transport force by the guide roller 5, but with the carrot part w2 being pinched by the tension roller 6, the carrot root part w1 is pressed from behind by another following carrot with leaves. Therefore, when the carrot with leaves is forcibly fed into the slit 17b of the guide body 17 and enters the disk blade 16, the guide body 17 moves as shown in FIGS. 4 and 6. The root apex s is guided into a sliding state by the guide surface 17c, and the movement of the root w1 in the belt 1 conveyance direction is restricted. At this point, the carrot with leaves is on the guide roller 5.
Since the carrot root w1 does not receive the rotational force in the direction of the arrow f4, it does not assume an oblique posture along the vertical plane as shown in Fig. 5, but rather its tip side tends to droop downward due to the action of gravity. Become. However, since the rod 39 of the support body 38 supports the tip side from below as shown in FIG. 6 and holds the root w1 in a substantially horizontal position, the disc blade 16 cuts the carrot with leaves in the horizontal position. That's what I do. Kono Saiha part w2
the other rod 40 until it is cut by the disk blade 16.
acts to prevent the root part w1 from falling from one of the rods 39, so that the carrot with leaves can be stably cut with the base position of the leaf part w2 perpendicular to the longitudinal direction of the carrot root part w1. .

Although the above description has been made without considering the presence of the feeding device 24, in reality, the carrot root w1 that has reached the vicinity of the guide trajectory end position p1 of the guide roller 5 has an arc that rotates in the direction of the arrow f5 together with the pulley body 28. Rod 2
9 and 29 are in elastic contact with the upper circumferential surface thereof, and the root portion w1 is forcibly fed into the disk blade 16 by its rotational force. Therefore, the carrot root w1 that has reached the end p1 of the guide track of the guide roller 5 is
Even if the conveyance force is not applied by the device 2 and the back is not pressed by another carrot with leaves that follows it and is forcibly conveyed along the guide trajectory by the guide roller 5, the device 2
4, the leaf portion w2 is smoothly cut by receiving the forced feeding force toward the disk blade 16.

(Effect of the invention) As described above, according to the invention, the rotating surface of the disc blade 16 is set to the front circumferential surface 5a of the carrot root guide roll 5.
A guide body 17 is provided on the carrot entry side of the disc blade 16 to restrict the top surface s of the carrot root along the disc blade 16, and the disc blade 16 can be moved slightly backward toward the central axis 7 side. Since the support member 38 that maintains the posture of the carrot root portion w1 during cutting by the blade 16 in an approximately horizontal position is disposed at a position slightly lower than the conveyor belt 1, even if the carrot root portion w1 is being cut by the blade 16, the carrot root portion w1 with leaves may vary in size. Even if the carrots are cut in groups, it is possible to control each carrot to be cut in a fixed horizontal position perpendicular to the rotating plane of the disk blade 16, and this allows the leaf part w2 of each carrot to be placed at an appropriate position and also to be cut at the root part w1. This makes it possible to stably cut the carrot root in a direction perpendicular to the longitudinal direction, and it is possible to reliably prevent the top part of the carrot root from being cut and separated together with the leaf part w2.

Note that if the feeding device 24 is provided, the cutting performance of the device of the present invention will be further improved.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of the device of the present invention, Figs. 2 and 3 are partially enlarged views, Fig. 4 is an explanatory view of the operation, and Fig. 5
The figure is a sectional view taken along the line XX in FIG. 4, and FIG. 6 is a sectional view taken along the line YY in FIG. 4. 1... Conveyor belt, 5... Guide roller, 5a...
...Front circumferential surface of the guide roller, 6...Tension roller, 7
... Central shaft, 16 ... Disc blade, 17 ... Guide body, 38 ... Support body, 24 ... Feeding device.

Claims (1)

[Claims for Utility Model Registration] 1. Carrot root guide rollers 5 and leaf pulling rollers 6 are disposed along the upper surface of the conveyor belt 1 in this order so as to straddle the conveyor belt 1 in a diagonal direction, and In an automatic carrot leaf cutting device in which a disk blade 16 for cutting the leaves is provided at one end of the belt 1, the rotational surface of the disk blade 16 is set closer to the front circumferential surface 5a of the carrot root guide roller 5. A guide body 17 is provided on the carrot entry side of the disk blade 16 to allow the disk blade 16 to move slightly backward toward the center axis 7, and to restrict the top surface s of the carrot root along the disk blade 16. An automatic carrot leaf cutting device characterized in that a support member 38 that maintains a substantially horizontal posture of the carrot root during cutting is disposed at a position slightly lower than the conveyor belt 1. 2 At one end of the conveyor belt 1, the disk blade 1
Disk blade 1 cuts the carrot root that has reached the point near point 6.
2. The automatic carrot leaf cutting device according to claim 1, further comprising a feeding device (24) that presses the carrot leaf toward the 6th direction.