JPH0446873Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is a setter used to remove foreign matter attached to the surface of a ceramic plate called a setter for firing ceramic parts such as an alumina substrate. This invention relates to a foreign matter removal device.

(Prior art) When firing alumina substrates, etc., it is common practice to place a bed powder or a bed powder-containing sheet on the surface of a ceramic board called a setter, and then stack a green sheet on top of it and fire it. Setters are reused many times. However, because the surface of the setter used for firing is baked with dust and other foreign matter, it cannot be used as is for the next firing, and conventionally the foreign matter had to be removed manually. was. The work method involves rubbing the surface of the setter with a refractory piece, which causes a lot of wear and tear on the setter, and tends to cause unevenness in the removal of foreign matter from the setter surface, resulting in pinholes and other problems in the fired product during the next firing. This may cause undulations, etc., and the working environment may deteriorate due to dust.
There were many drawbacks such as the inability to save labor.

(Problems to be solved by the invention) The present invention solves the conventional problems as described above, and can automatically and uniformly remove foreign substances such as bedding powder attached to the setter surface. This was completed with the aim of creating a device for removing foreign matter from the setter surface, which can reduce wear and tear and completely prevent deterioration of the working environment.

(Means for Solving the Problems) The present invention provides a closed box in the middle of a conveyor that supports and transfers both ends of the setter, and inside this closed box there is a container for brushing the upper surface of the setter being transferred. The brush is equipped with a plurality of brushes and a plurality of lower brushes for brushing the lower surface of the setter, and an air nozzle is provided at the outlet of the setter to prevent dust from leaking and to clean the surface of the setter. be.

(Embodiment) Next, the present invention will be explained in more detail with reference to the illustrated embodiment. 1 is a machine base, 2 and 3 are rotating shafts attached to both ends of the upper part of the machine base 1, and these rotation shafts are Chain-type conveyors 6, 6 are stretched between sprockets 4, 5 on both sides of shafts 2, 3, respectively. 7 is a motor that drives the conveyors 6, 6. The conveyors 6, 6 support the left and right ends of the setter 50, and hook the setter 50 with small protrusions on their upper surfaces to sequentially transport the setter 50 from the left end to the right end in the drawing. Reference numeral 8 denotes a stock stand for stacking a large number of setters 50, and the setters 50 are pulled out one by one from the bottom by a conveyor 6.

9 is a conveyor 6 in the middle of such a conveyor 6.
It is a sealed box that wraps the body from above and below. The closed box 9 has an entrance 1 through which the setter 50 transferred by the conveyor 6 can pass.
0 and the outlet 11 are sealed to prevent the dust generated inside from scattering, and the internal air is sucked into the dust collector 12 through a duct (not shown) to prevent the dust from scattering into the atmosphere. It has a structure.

Inside the closed box 9, a plurality of upper brushes 13 and a plurality of lower brushes 14 are installed. The upper surface brush 13 is for brushing the upper surface of the setter 50 in a direction opposite to its traveling direction to remove foreign matter, and is rotated in the same direction by a motor 15 via chains 16 and 17. Also, the brush 14 for the lower surface is a setter 50.
The first one is rotated in the same direction as the upper brush 13, but the second and third ones are gears 18 and 18.
The direction of rotation is reversed. Note that foreign matter can be removed smoothly by setting the first brush on both the upper and lower sides to be hard, the second brush to be softer, and the third brush to be the softest. Furthermore, a pair of upper and lower air nozzles 1 are installed at the outlet of the sealed box 9.
9 and 19 are provided. These air nozzles 19, 19 have the role of forming an air curtain at the outlet 11 to prevent dust from leaking to the outside from the outlet 11, and the role of blowing compressed air onto the setter surface to clean the dust on the surface. It also serves as Note that 20 is a pedestal for the setter 50 that has been processed.

(Function) In order to remove foreign matter from the setter surface using the apparatus of the present invention configured as described above, first stack a large number of setters 50 used for firing on the stock stand 8, and then connect the motors 7 and 15. Start. Then, the conveyor 6 is driven, and the setters 50 are pulled out one by one from the bottom side and enter the sealed box 9 with both ends supported by the conveyor 6. The upper and lower surfaces of the setter 50 are then brushed by the upper brush 13 and the lower brush 14 to remove foreign matter such as bedding powder adhering to the surface. Since the removal of foreign matter is carried out by a rotating brush, it is uniformly carried out over the entire surface, and there is no unevenness in the removal of foreign matter unlike in the case of conventional manual removal. Further, the surface of the setter 50 is cleaned by compressed air jetted from the air nozzle 19, and the setter 50 is taken out from the outlet 11 to the pedestal 20. At this time, if the brushes are arranged so that they are hard at first and gradually become soft as in the example,
This is preferable because firmly adhering foreign matter is first removed, and then the foreign matter is gradually removed in a finer manner.

Although a large amount of dust is generated when brushing the surface of the setter 50, since the brushing is performed inside the sealed box 9, the dust does not scatter around. Since an air curtain is formed, dust will not leak from the outlet 11 along with the setter 50. Furthermore, since the air within the closed box 9 is led to the dust collector 12 and collected therein, the working environment is maintained in an extremely good condition.

(Effects of the invention) As described above, according to the present invention, foreign matter on the surface can be removed by automatically brushing the setter, and unlike manual brushing, the entire surface can be brushed uniformly, which eliminates variations in the state of foreign matter removal. There is no pinhole or waviness in the fired product. Furthermore, in the present invention, since foreign matter is removed by brushing the setter surface, there is less wear and tear on the setter, and since dust is not scattered into the surrounding atmosphere, a good working environment can be maintained. Although the setter is usually flat, it can also be applied to a shallow box-shaped setter by changing the shape of the brush. Therefore, the present invention has extremely great practical value as a device for removing foreign matter from the setter surface, eliminating the problems of the conventional method.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. 6...conveyor, 9...closed box, 13...
...Brush for upper surface, 14... Brush for lower surface, 19...
...Air nozzle, 50... Setter.

Claims (1)

[Scope of utility model registration request] An airtight box 9 is provided in the middle of the conveyor 6 that supports and transfers both ends of the setter 50, and inside this airtight box 9 are provided an upper surface brush 13 for brushing the upper surface of the setter 50 being transferred, and a lower surface of the setter 50. A device for removing foreign matter from the setter surface, characterized in that a plurality of bottom brushes 14 are installed for brushing the setter surface, and an air nozzle 19 is provided at the outlet portion of the lower surface brushes 14, which serves both to prevent dust from leaking and to clean the setter surface. .