JPH0144301Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a shot seal mechanism for a mobile shot blasting device.

(Prior art) In recent years, shot blasting equipment that continuously blasts the floor surface by collecting shot after projecting and moving it while circulating it has become widely used. The detailed construction of the Yotsutoblast device is as follows. In other words, an impeller housing containing an impeller rotatably;
A cover member is formed by connecting the shot recovery cylinder communicating with the impeller in a V-shape at their lower positions, and this cover member is moved with a trolley, thereby allowing the shot to be moved diagonally from above with respect to the floor surface. It is configured to project and collect the shot that bounces off the floor via a collection cylinder. Shots that try to jump out from the gap between the cover member and the floor surface are sealed with a rubber plate, brush, etc. wrapped around the cover member, but such a sealing mechanism does not have a sealing effect. There were problems such as the shot not being sufficient and the shot popping out frequently.

(Purpose of the invention) The invention has been made to solve the above problems.

(Structure of the invention) Hereinafter, the structure of the invention will be described in detail based on drawings of embodiments. Reference numeral 1 denotes a cover member formed by connecting an impeller housing 3 in which an impeller 2 is rotatably housed and a shot recovery cylinder 4 communicating with the impeller 2 in a V-shape at their lower positions, and installed on a truck (not shown). There is. A mounting member 5 forming a vertical surface is fixed to the rear side of the lower end of the cover member 1 (left side in FIG. 1), oriented in the left-right direction, and a rubber plate is attached to the rear side of the mounting member 5. A seal 6 made of aluminum and a spacer 7 that supports the lower part of the seal 6 and forms an air intake port I with the floor surface F are attached. Further, a support member 9 having a groove portion 8 extending in the left-right direction is provided on the front side of the lower end of the cover member 1.
is fixed at the same level as the lower end of the cover member 1, and a strip-shaped magnet 10 whose thickness is thinner than the depth of the groove 8 is fixed within the groove 8. moreover,
Support members 13, 13, which form a groove 12 with the cover member 1, are fixed to the left and right sides of the lower end of the cover member 1 with the same bells as the lower end of the cover member 1, as shown in FIG. A strip-shaped magnet 15 whose thickness is thinner than the depth of the groove 12 is also fixed within the groove 12 . Further, at the lower part of the cover member 1, a horseshoe-shaped mounting member 16 forming a vertical surface is located above and outside the support members 9, 13, 13 (the support member 9 portion), and the open portion is directed backward. A seal 17 made of a rubber plate surrounds the support members 9, 13, 13 and slightly protrudes from the lower end of the cover member 1. attached.

(Operation of the device) Next, the operation of the device configured as described above will be explained. Grooves 8, 1 of support members 9, 13, 13
2, 12 in advance and insert the shot into the magnet 10,
A shot is interposed in the gap between the cover member 15 and the floor surface F, thereby sealing the space between the lower end of the cover member 1 and the floor surface F using the supporting members 9, 13, 13 and the shot. Under this condition, when the cover member 1 is advanced in the direction of the arrow in Fig. 1 while projecting the shot toward the floor surface F by the impeller 2, the shot rebounds after colliding with the floor surface F, not shown. The dust is collected through the shot collection cylinder 4 while receiving the suction action of the dust collector, and is ejected again and used for circulation.

Note that the airflow to the dust collector is caused by air flowing in from the air intake port I formed between the seal 6 and the floor surface F. While cleaning the floor surface F in this way, most of the shots in the grooves 8, 12, 12 are held in the grooves 8, 12, 12 by the magnetic force of the magnets 10, 15, 15, and the cover member 1 However, some of the shots separated from the grooves 8, 12, 12 due to the friction of the floor surface F are eventually moved near the center of the lower part of the cover member 1 by the airflow from the air intake port I. After being gathered together, they are repelled by the projected shot and collected through the shot collection cylinder 4. Thus, the airtight state between the cover member 1 and the floor surface F is maintained.

The seal 17 is provided to prevent the shot from popping out from the gap between the cover member 1 and the floor F, and to prevent excess air from flowing into the cover member 1.

(Effect of the invention) As is clear from the above explanation, in the present invention, a magnet is attached to the lower end of the cover member so as to surround the lower end opening of the cover member, so that there is a gap between the magnet and the surface to be polished. As a result of intervening the shot, the shot moves together with the cover member to maintain a sealed state between the cover member and the surface to be polished.
This provides excellent practical effects such as preventing the shot from jumping out from the cover member.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a vertical side view, Fig. 2 is a bottom view, and Fig. 3 is a view from A to A in Fig. 1.
It is an A sectional view. 1: Cover member, 2: Impeller, 3: Impeller housing, 4: Shot collection tube, 6: Seal,
7: Spacer, 10, 15: Magnet.

Claims (1)

[Scope of utility model registration request] In a shot sealing mechanism of a mobile shot blasting device configured to communicate and connect a shot collection cylinder to a dust collector and collect shots by the suction action of the dust collector, an impeller 2 is connected to an impeller housing 3 in which an impeller 2 is rotatably housed. A seal 6 made of a rubber plate and a lower part of the seal 6 are attached to the rear side of the lower end of the cover member 1, which is formed by connecting the shot collection tube 4 and the shot recovery tube 4 in a V-shape at their lower positions. A spacer 7 is attached to support the cover member 1 and form an air intake port with the floor surface, and a magnet 1 is attached to the lower end of the cover member 1 on the front side facing the seal 6 and on both left and right sides.
A shot seal mechanism for a mobile shot blasting device, characterized in that 0, 15, 15 are fixed.