JPS59192015A - Blade body of tea picking machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention The present invention relates to a blade used in a tea leaf plucking machine, etc., and more specifically, the cutting blade or receiving blade for tea leaves, tea stems, etc. is made of a hard material that does not contain iron in its composition. By doing so, the first purpose is to eliminate contact between iron and tea liquid during cutting, and also to provide a blade body that can collect high quality tea leaves without adhering to the cutting blade, etc., and does not rust. The purpose is to

Currently, various types of tea leaf plucking machines exist and are being actively developed, but the blades of these plucking machines are exclusively ml' (SK
SKH materials, etc.) are used. This steel blade body could be formed into complex shapes, and if the cutting edge became dull, it could be sharpened and used repeatedly. Iron not only has the problem of having a vicious and harmful chemical effect on the tea juice and deteriorating the quality of the tea leaves that are collected, but also has the problem that tea leaves tend to adhere to the blade, making it particularly difficult to use with cutting blades. In plucking mechanisms with receiving blades, the blades do not mesh well, dulling the cutting quality, causing hangnails at the cut portion and promoting oxidation of the tea leaves, which also results in a decline in quality. It also has operational problems such as large power loss and vibration, and another drawback is that it rusts and is not easy to maintain.

This invention was made to solve the above problems.
An embodiment to which the present invention is applied will be specifically described below.

Explaining the structure of the plucking machine with reference to FIGS. 1 and 2, this plucking machine has a plucking mechanism of a type equipped with a movable cutting blade and a fixed receiving blade, and the reference numeral A indicates the plucking machine. The frame 1a is a rotatable shaft installed on both left and right walls of the frame A, and two blade plates 1, 1 having a spiral shape in the longitudinal direction are attached to the rotary shaft 1a. A mounting plate 2 having a stepped portion 2a formed on the outer end surface of each of the vanes 1.1 is disposed.

The step portion 2a is provided with subdivided cutting blades 3 having a cutting edge portion 3a at the tip (=1 subtracted), and these cutting blades 3.
・Constitutes a series of spiral cutting blades. Then, when the rotating shaft 1a- is driven, the protruding state is set so that the cutting edge draws a circumferential locus.

Next, reference numeral 4 denotes a mounting base arranged horizontally on the bottom plate 5 of the frame A. A four-step part 4a is formed on the top surface of this mounting board 4, and a straight receiving blade is formed on the recessed step part 4a. Receiving blades 6 having portions 6a are arranged in a row. A series of linear receiving blades is formed by the group of receiving blades 6, and the cutting blades 3.・Make sure to correspond accurately to Further, the cutting blade 3 and the receiving blade 6 are removably fixed to the mounting plate 2 and the mounting base 6 by internal screws 7, respectively.

The tea confectionery and tea confectionery are cut by the action of the cutting blade 3, which is rotated in the direction R in FIG.

Here, the cutting blade 3 and the receiving blade 6 are made of a hard material that does not contain iron as a composition, and a suitable paulownia wood material is ceramics.

There are various types of ceramics, including non-oxide ceramics such as silicon nitride and silicon carbide, oxide ceramics such as alumina, and zirconia ceramics. 3000) and high transverse rupture strength (8
0 to 120 kg/rni) and has excellent wear resistance, so it has the property of keeping the cutting edge sharp and maintaining good cutting quality for a long time.

Furthermore, this ceramic has very stable properties chemically and physically, does not rust or weather, and is resistant to attack by chemicals (disinfectants), making it suitable for use as a cutting knife.

In addition, as a suitable hard material containing no iron in the above-mentioned crushed components, there is also a cemented carbide made by sintering tungsten carbide as a main component, cobalt as a binder, and titanium carbide and tantalum carbide natra added thereto. Alloy (4(pA
90-95, transverse rupture strength 130-200 kg/ml
), cermet sintered with titanium carbide as the main component and nickel as a binder (K'a degree HRA 90-93, transverse rupture strength 120-180 kg/myl), epoxy resin, polyester JV resin as the main components These can be used in place of the Nanau mix in one example, as they all have low adhesion to tea leaves, excellent wear resistance, and chemically stable properties. . Further, in the above description, the cutting blade and the receiving blade are constructed using the subdivided blade body, but there is no technical problem in constructing the cutting blade and the receiving blade in series without subdividing the blade body, and this can be employed.

Furthermore, the mounting plate 2, frame A, and other members other than the cutting blade and receiving blade in the above-mentioned plucking machine are made of non-ferrous metals (aluminum alloy, etc.), plastics, etc.゛The blade body of the present invention can be used in a type of tea leaf plucking machine in which the cutting mechanism is formed by a clipper-like cutting blade and a receiving blade, or in a pruning machine, hemming machine, leveling machine, deep mowing machine, etc. that uses the same cutting mechanism. There are also few changes that can be implemented. This clipper-like cutting mechanism is shown in FIGS. 3 and 4. 12 is a mounting plate for the cutting blade 13, 13a is a cutting blade portion, and 14 is a receiving blade 16.
The mounting plate 16a is a receiving blade portion, and the mounting plate 17 is a normal female thread.The mounting plate 12 is reciprocated in the direction of arrow Q by a drive mechanism (not shown) to cut tea confections or tea stems.

In addition, the blade body of the present invention can be used without exception in plucking machines without a receiving blade, which are equipped with a rotating body that pinches and transfers tea leaves, tea confections, etc. above the horizontally arranged cutting blade. applicable.

As is clear from the above description of the embodiments, the present invention uses a hard material that does not contain iron as a component for the cutting blade or receiving blade for tea leaves, tea confectionery, etc. Therefore, the quality deterioration of tea leaves due to iron content, which was a conventional problem, is avoided. In addition, it is possible to prolong as much as possible the dullness of the sharpness of the blade due to the adhesion of tea leaves and the dullness of the sharpness due to wear, and it exhibits the characteristic that it can collect high-quality tea leaves.

[Brief explanation of drawings]

FIG. 1 is a partially longitudinal side view showing an embodiment of a tea leaf plucking machine to which the present invention is applied. FIG. 2 is a perspective view of a blade body according to the present invention. FIG. FIG. 2 is a partially cutaway plan view showing an embodiment of the invention, showing only the main parts. FIG. 4 is also a vertical side view. A: Frame 1a: Rotating shaft 1: Wing plate 2.12: Mounting plate 2a: Step part
3.13: Cutting blade 3a, 13a: Cutting blade part
4.14: Mounting base 4a: Recessed step 5: Bottom plate 6.16: Receiving blade 7.17: +J:, Female thread 6B, 16a: Receiving blade part Applicant 1) Naka Takeshi Figure 1 Figure 3

Claims (6)

[Claims] (1) A blade body for a tea leaf plucking machine, etc., characterized in that the cutting blade for cutting tea leaves, tea stems, etc. is made of a hard material that does not contain iron in its composition. (2) A blade body for a tea leaf plucking machine, etc., characterized in that a pair of cutting blade and receiving blade for cutting tea leaves, tea stems, etc. are made of a hard material that does not contain iron in its composition. (3) The hard material is non-containing such as silicon nitride or silicon carbide.
The blade body of a tea leaf plucking machine or the like according to claims (1) and (2), which is made of 3° oxide ceramics, oxide ceramics such as alumina, or zirconia ceramics. (4) A patented blade whose hard material is a cermet made of titanium carbide as a main component and nickel as a binder. (5) Claims (1) and (2) in which the hard material is a cemented carbide made of tungsten carbide as a main component, cobalt as a binder, and titanium carbide, tantalum carbide, etc. The blade of the tea leaf plucking machine, etc. described in Section 1. (6) A blade body for a tea leaf plucking machine or the like according to claims (1) and (2), wherein the hard material is a reinforced plastic whose main component is an epoxy resin or a polyester resin.