JPH0578302B2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Field of Industrial Application) This invention provides a method for automatically removing leaves (leaf-picking) and sorting and collecting leaves from the stem of leaf tobacco that has undergone a drying process after cutting. Regarding equipment.

(Conventional technology) Up until now, the work of collecting leaves from the dried stem of leaf tobacco has been to manually pick each leaf from the base. ), lower leaves (main leaves), etc., and are stored in their respective harvest boxes.

(Problems to be Solved by the Invention) The present invention aims to reduce labor and improve workability by automating all manual leaf picking and sorting.

[Structure of the Invention] (Example) The following will be described with reference to an example shown in the drawings. In FIG. 1, reference numeral 1 denotes a frame having a predetermined width and depth, and the four lower corners of the frame are supported by casters 12.

In the depth direction of the upper stage of the frame 1, a winding transfer path 4 for leaf tobacco trunks T (hereinafter simply referred to as "trunk T") is formed by the left and right inner rotating horizontal conveyors 2a and 2b, and also in the middle stage, the left and right inner rotating horizontal conveyors 2a and 2b By means of the rotating horizontal conveyors 3a and 3b, the trunk T winding transfer path 5 is formed as a transfer path with different levels, with the front half 5a and the rear half 5b separated and the rear half 5b positioned higher than the front half 5a. be.

and the winding inlet 4 of the upper winding transfer path 4.
The stripping blades 7 are passed from near a toward the diagonal part of the frame 1 and through the drop space between the front half 5a and the rear half 5b of the intermediate transfer path 5, so that the stripping blades 7 are engaged with each other alternately from both sides. The counter-rotating shafts 6, 6 are mounted on both wing-shaped shafts.

The reason why the stripping blades 7 are attached so as to be alternately interlocked with each other as described above is to strip the leaves over the entire circumference of the trunk T being transferred as shown in FIG. Further, the blade 7 is configured such that the blade retaining portion 7b is made of an elastic material and a metal tip 7a is attached to the tip thereof, so that the rotating blade 7 can be rotated by the stem T as shown in FIGS. 4 and 5. When hitting the leaf, the blade retaining portion 7b bends and follows the trunk, and by further rotating, the metal tip 7a is able to scrape off the base of the leaf, making it possible to correspond to the size of the diameter of the trunk T. . Furthermore, by tapering the tip of the blade 7, a so-called relief of the blade can be formed and the contact with the root can be made smooth.

Further, at the bottom of the frame 1, there are harvesting boxes 8, 9, 10 for upper leaves, middle leaves, and lower leaves from the front.
The automatic sorting tobacco leaf picking device of the present invention is configured such that the tobacco leaf picking device of the present invention is detachably equipped with the following.

In the above, the rotational operation of the horizontal rotary conveyors 2a, 2b, 3a, and 3b forming the upper and middle transfer paths 4 and 5 is powered by a motor M1 provided at the rear of the frame and via transmission systems 13 and 14. driven,
Further, the rotation of the rotating shafts 6a and 6b of the stripping blade 7 is driven via a transmission system 15 using a motor M2 provided at the rear of the frame as a power source.

(Function) To use the device of the present invention having the above configuration, the motor M1 is started to drive the inner rotating horizontal conveyors 2a, 2b, 3a, 3b of the transfer paths 4 and 5, and the motor M2 is started. counter-rotation shaft 6a,
6b are rotated inwardly relative to each other.

Then, as shown in FIG. 2, a worker stands in front of the winding transfer paths 4, 5, holds the dry trunks T in an upright position, and feeds them one by one through the winding ports 4a, 5c.

Then, as shown in the figure, the trunk T is sequentially transferred rearward in a stable state by the feeding action of the upper and middle horizontal rotary conveyors 2a, 2b, 3a, and 3b, and in the process, it is pivoted diagonally downward. Rotation axis 6
The stripping blades 7 attached to a and 6b strip the upper leaf, the middle leaf, and the lower leaf in this order.

To explain this in detail now, the upper transfer path 4,
Trunk T sent into the first half 5a of the middle transfer path 5
As a result of the stripping blades 7 being arranged diagonally and diagonally downward, the upper leaves are first stripped off from approximately one-third of the front side of the entire length of the transfer path, and are then dropped and stored in the harvesting box 8 below. Then, after passing one-third, the middle leaf is torn off, but at this time, the middle transfer path 5 separates the front half 5a and the second half 5b, and the second half 5b is separated from the first half 5a. Since the leaf is formed as a conveying path with different levels at higher positions, and the stripping blade 7 passes through the space between the two leaves, the removal of the middle leaf can be performed without any hindrance, and from then on, the upper conveying path 4
The trunk T is transferred by the second half 5b of the middle transfer path 5, and the plucked middle leaves fall and are stored in the lower harvesting box 9. Then, the lower leaves of the remaining one-third are plucked off and stored in the lower harvesting box 10.

The bare trunks T, which have finally been stripped, are discharged one after another from the discharge ports 4b and 5d of the transfer paths 4 and 5b, and are collapsed and stored in the remaining trunk storage box 11.

The details of the state in which the leaves are removed by the removing blade 7 are as explained in the section on the structure of the invention with reference to FIGS. 3 and 4.

[Effects of the Invention] As described above, the present invention automates all the conventional manual plucking and sorting of leaves, and the worker only has to feed the trunk T in an upright position, so it can be used by men and women of all ages. The work can be done regardless of the situation, resulting in labor savings and improved workability.

In particular, since a plurality of trunks can be continuously supplied in the depth direction, work efficiency can be significantly improved.

Although the height of leaf tobacco stems varies, as mentioned above, the transport paths are provided in the upper and middle tiers, so any stem height can be accommodated.

There are almost no mechanical tentacles with leaves other than the base, and even if there is contact, the rotating horizontal conveyor 3a,
The possibility of damaging the leaves can be eliminated by using a soft rubber belt as the conveying belt 3b, and by making the blade retaining part 7b of the stripping blade 7 of an elastic material to maintain flexibility.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is a side view in use, FIG. 3 is an enlarged plan view of 7 portions of the stripping blade in the stripping state, and FIG. 4 is a longitudinal section of the same. A front view, and FIG. 5 is a side view of the same as above with the front side rotation shaft 6a omitted. 1...Frame, 2a, 2b...Upper stage inner rotating horizontal conveyor, 4...Upper stage winding transfer path, 4
a...The intake port, 4b...The discharge port, 3
a, 3b...middle inner rotating horizontal conveyor, 5...
...Middle stage winding transfer path, 5a... its first half, 5
b...The latter half, 5c...The winding opening, 5d
...The discharge port, 6a, 6b...Another rotating shaft, 7...
...Removal blade, 7a...The metal chip, 7b
...The blade holding part, 8... Upper leaf harvest box, 9...
Harvesting box for middle leaves, 10... Harvesting box for lower leaves.

Claims (1)

[Claims] 1. In the depth direction of the upper and middle stages of the frame 1 having a predetermined width and depth, the left and right inner rotary horizontal conveyors 2a, 2b, 3a, and 3b form narrow winding transfer paths 4 and 5. In particular, the middle transfer path 5 is formed into a stepped transfer path by separating the front half 5a and the rear half 5b, with the latter half 5b being higher than the front half 5a, and the upper transfer path 4 is Winding port 4
The stripping blades 7 are passed from near a toward the diagonal part of the frame 1 and through the drop space between the front half 5a and the rear half 5b of the intermediate transfer path 5, so that the stripping blades 7 are engaged with each other alternately from both sides. Counter-rotating shaft 6 equipped with
A and 6b are mounted on a shaft, and the bottom of the frame 1 is equipped with harvesting boxes divided into several sections corresponding to upper leaves, middle leaves, and lower leaves from the front. 2. The leaf sorting machine for dried stem tobacco according to claim 1, wherein the stripping blade 7 has a blade retaining portion 7b made of an elastic material and a metal tip 7a attached to the tip thereof. 3. The leaf picking machine for dried stem tobacco according to claim 1 or 2, wherein the picking blades 7 are attached to the rotating shafts 6a and 6b in the form of both wings. 4. The leaf sorting machine for dried stem tobacco according to claims 1 to 3, wherein the conveyance belts of the inner rotary horizontal conveyors 3a, 3b forming the transfer path 5a are made of soft rubber.