JP2545831Y2 - Scraper shock absorber - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorber for a scraper which stirs a kneaded material in a mixer and scrapes off the kneaded material adhering to a bottom surface or a side surface in the mixer.

[0002]

2. Description of the Related Art As shown in Japanese Patent Publication No. 58-5095, a scraper provided in a mixer stirs the kneaded material in the mixer with a scraper blade at the tip thereof and simultaneously removes the kneaded material adhered inside. It is used for scraping, but if the kneaded material adhered inside adheres firmly to the mixer wall or bottom, the scraper or the mixer body may be damaged. ing.

[0003]

However, since the conventional scraper shock absorber uses a coil spring inside, there is a problem that it takes time to assemble and disassemble, and also takes time to adjust. . The present invention has been made in view of such circumstances, and an object of the invention is to provide a scraper shock absorber that is relatively easy to assemble, disassemble, and adjust and that is inexpensive.

[0004]

According to the first aspect of the present invention, there is provided a scraper shock absorber according to the first aspect, wherein a rotary shaft having a square shaft portion provided in a housing having a square hole formed therein is rotatable. An elastic member such as rubber is inserted between the square shaft portion and the square hole, and a scraper arm is fixed to one end of the rotation shaft.

[0005]

In the scraper shock absorber according to the present invention, a scraper arm is attached to one end of the rotating shaft.
The rotating shaft is provided with a square shaft portion, and furthermore, since the square shaft portion is disposed in the square hole via an elastic member such as rubber, a large force is applied because the scraper is caught by the attached matter or the like. In this case, since the square shaft portion rotates by pressing the elastic member, the force applied to the scraper arm can be reduced, and thereby the buffer can be buffered.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings to facilitate understanding of the present invention. As shown in FIGS. 1 to 4, a scraper shock absorber 10 according to one embodiment of the present invention includes a housing 12 provided with a mounting flange 11, a square shaft portion 13 disposed in the housing 12 and an intermediate portion. Rotating shaft 14 provided with
And a scraper arm 15 attached to one end of the rotating shaft 14. Hereinafter, these will be described in detail.

The housing 12 has a cylindrical shape on the outside and a square hole 16 formed by a square pipe inside. The housing 12 has bearing boxes 17 and 18 on both sides. , 21 so as to be rotatable. As shown in FIGS. 1 and 3, a rectangular contact piece 22 is provided on a part of the rotation shaft 14, and a screw shaft 24 screwed into a screw hole 23 formed in the housing 12 abuts. The angle of the rotating shaft 14, that is, the strength of the elastic force urging the scraper arm 15 can be adjusted. The screw shaft 24 is provided with a screw cap 25 to be screwed together to prevent the screw shaft 24 from loosening.

The square shaft portion 13 of the rotating shaft 14 is formed by a square pipe 26 mounted outside the rotating shaft 14 and having a length of the opposite apex shorter than the length of the opposite side of the square hole 16. Rubber masses 31 to 34, which are examples of elastic members, are disposed in the triangular portions 27 to 30 formed by the opposite sides of the square shaft portion 13 and the square holes 16, respectively. A scraper arm 15 is connected to one end of the rotating shaft 14 via a lock mechanism 35. The lock mechanism 35 can freely rotate the arm portion by loosening the bolt 37 at the distal end and loosening the cap 37a. The lock mechanism 35 is locked by tightening the bolt 36 and tightening the cap 37a.
It is designed to be adhered to. In addition, the present invention can be applied to not only the lock mechanism 35 but also a rotation preventing and holding means such as a normal key and a spline. A scraper 37 as shown in FIGS. 5 and 6 is attached to the tip of the scraper arm 15.

Accordingly, as shown in FIG. 5, the above-mentioned scraper shock absorber 10 is mounted on a rotating portion 39 disposed in the center of the mixer body 38 by using the mounting flange 11, and the rotating portion 39 is mounted on a motor (not shown). When driven to rotate, the scraper 37 moves forward as shown in FIG. Here, the foreign matter 41 firmly attached to the mixer bottom 40
When there is, the rotating shaft 14 is rotated by pushing the rubber masses 31 to 34, and the scraper 37 is slightly raised and lowered again, so that an excessive impact is not applied to the device. The angle of the scraper 37 is adjusted by adjusting the lock mechanism 35, and the degree of buffering of the scraper 37 is adjusted by adjusting the screw shaft 24.

[0010]

As is apparent from the above description, the scraper shock absorber according to the present invention has a rectangular hole inside the housing, a square shaft portion on the rotation shaft, and an elastic member such as rubber inside the housing. And the elasticity buffers the scraper, so that the structure is simple and the cost is low. Further, unlike a spring or the like, there is an advantage that assembly and disassembly and adjustment are easy.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an internal structure of a scraper shock absorber according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is a side sectional view of the same.

FIG. 4 is a side view of the same.

FIG. 5 is a schematic plan view of a mixer using the scraper shock absorber.

FIG. 6 is a side view showing a use state of the scraper shock absorber.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Scraper buffer 11 Mounting flange 12 Housing 13 Square shaft part 14 Rotating shaft 15 Scraper arm 16 Square hole 17 Bearing box 18 Bearing box 20 Bearing 21 Bearing 22 Contact piece 23 Screw hole 24 Screw shaft 25 Screw cap 26 Square pipe 27 Triangular part 28 Triangular part 29 Triangular part 30 Triangular part 31 Rubber mass 32 Rubber mass 33 Rubber mass 35 Rubber mass 36 Bolt 37 Cap 38 Mixer body 39 Rotating unit 40 Mixer bottom 41 Foreign matter

Claims (1)

(57) [Scope of request for utility model registration] 1. A rotatable shaft having a square shaft portion provided rotatably in a housing having a square hole formed inside, and an elastic member such as rubber is provided between the square shaft portion and the square hole. And a scraper arm fixed to one end of the rotating shaft.