JPS58128158A - Electromotive millstone 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 an electric mill having a fixed mortar and a rotary mortar.The material of the mortar is made of ceramic with good wear resistance, and the weak point of ceramic, which is weak against bending stress, is covered. An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1 is a screw, which is integrated with a screw shaft 2. The screw shaft 2 is rotated by an electric motor (not shown). Reference numeral 3 denotes a screw body with screw 1 built in, which is designed to guide the material. Reference numeral 4 denotes an input hole for inputting materials. Reference numeral 6 denotes a cover, and hook portions 9° 1o are hooked onto protrusions 7 and 8 of the 7-rank portion 6 of the screw main body 3. The cover 5 is provided with a cover bearing 11. Also, there is a screw 1 on the cover 6.
2, into which an adjustment screw 13 is screwed. As shown in FIG. 6, a fixed mortar 14 made of ceramic is attached to the seventh rank portion 6 of the screw main body 3 with a fixture 16 such as a screw. A buffer plate 16 is inserted between the fixed die 14 and the seventh rank part e to provide cushioning properties.

17 is the threaded mounting boss provided on the 7 rank part 6, 1ε is the mounting 7 flange part of the fixed mill 14, and 19 is the mounting tool 1
6. Fixed white 14-7 when tightening the screw with a flat washer.
A gap I is provided between the rank portion 18 and the flat washer 19 in the axial direction.

2o is the material cutting surface of the fixed die 14. A rotary mill 21 made of ceramic is attached to a rotary mill cover 22 via a buffer plate 23 with fixtures 24 such as rivets. 25 is the mounting tool 24
A gap y is provided in the axial direction between the clamping portion and the one-turn mill cover 22.

26 is a 7th rank portion of the rotary mill 21. 27 is rotary mill 2
1, which faces the material cutting surface 20 of the fixed die 14. Four hooks 28 are provided in the center of the rotary mill cover 22, and four hooks 28 are provided at the outer periphery of the tip of the screw 1.
The white cover is hooked onto hooks 30 at several locations. The rotary mill 21 attached to the rotary mill cover 22 is pressed against the fixed mill 14 via a mill presser 31 and a presser spring 32. The presser spring 32 is inserted into the screw shaft 2 at the tip, and is prevented from being removed by a stop shaft 33. A thrust receiver 34 is press-fitted into the tip of the screw shaft 2, and a thrust receiver 35 is also press-fitted into the tip of the R-section screw 13. The screw shaft 2 has a cover bearing 11 of the cover 6,
The screw is rotatably supported by a bearing portion 36 of the main body 3. Material cutting surface 2 of rotary mill 21 and fixed mill 14
By bringing the 7° 20 into contact, the material fed therebetween is ground and exits from the outlet 38 of the cover 5. To bring the material cutting surfaces 27.20 into contact, the screw shaft 2 can be brought into contact by screwing in the adjusting screw 13.
is pushed in, and the contact state between the material cutting surfaces 27 and 20 of the rotating mill 21 and the fixed mill 14 can be adjusted by the presser spring 32.

Now, the material entering from the input hole 4 is sent by the screw 1, guided by the inclined surface 39 of the fixed mill 14, and enters between the fixed mill 14 and the rotary mill 21, and as the screw 1 rotates, the material is rotated for the first time. 21 rotates, so that the material is crushed and comes out to the outer periphery. The ground material can be taken out from the outlet 38.

As described above, since the rotating mill and the fixed mill are made of ceramic, the present invention has good wear resistance.

The rotary mill and fixed mill are each attached to the attached part with a buffer plate interposed between them using mounting tools such as screws and rivets. It softens the impact when the material is scraped between the mortar and rotary mortar, and overcomes the drawback of ceramic being weak against bending stress.
Good grinding action can be obtained over a long period of time.

2 is an enlarged sectional view of the white part, 3 is a sectional view showing the relationship between the screw and the rotary mill cover, 4 is a perspective view of the rotary mill cover, and 6 is a cross-sectional view of the rotary mill cover. FIG. 3 is a partial cross-sectional view showing how the rotating mill and fixed mill are attached.

1...screw, 3...screw itself.

14...Fixed mortar, 15.24...Mounting tool, 16゜23...Buffer plate*X*7...
...Gap.

Name of agent: Patent attorney Toshio Nakao and one other person 1I
R1 figure 2r! I 〃 Figure 3 Figure 55! l

Claims (1)

[Claims] A screw rotatably driven by an electric motor, a screw main body incorporating the screw, a rotary mill rotating together with the screw, and a fixed mill attached to the screw main body opposite to the rotary mill; The mortar and fixed mortar are each made of ceramic, and each is attached to the part to be mounted with a buffer plate, such as a screw or rivet, with a gap between the rotary mortar and the fixed mortar in the axial direction with respect to the mounting tool. Electric Shirane equipped with.