JPH05184837A - Filter device in hot-air drier or the like - Google Patents

Abstract

PURPOSE:To surely remove the impurities deposited on the surface and meshes of the filter main body by providing the blowoff port of a dust removing means to blow off the impurities depositing on the main body at a position facing the suction port of a suction means through the main body. CONSTITUTION:A filter device 1 consisting of two sheets of a filter main body 3, a suction means 4 and a dust removing means 5 is provided at a specified position in a tenter 2. The main body 3 is rotated to confront a suction port 13 and a blowoff port 15 with the entire surface of the main body 3 at regular time intervals, air is always blown out of the port 15 to blow off the impurities entangled with the meshes of the main body 3, and the blow-up impurities and the impurities on the upstream side are sucked by the port 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter device for a hot air dryer used in a tenter, a hot air dryer, or the like.

[0002]

2. Description of the Related Art For example, there is a tenter as a device for width-setting a cloth in a finishing process of a cloth. The tenter is equipped with a widening device, a heat setting device, etc., and while spreading the woven / braided fabric using the widening device,
It is possible to heat the cloth with a heat setting device while maintaining the spread state to obtain a product having a desired width. The heat setting device circulates the air heated by the heat source in the furnace to heat the cloth.

In the above heat setting device, cotton wool dropped from the fabric to be treated, resin or dye residue impregnated in the fabric, or impurities such as fallen substances which have evaporated from the resin due to heating and adhered to the furnace wall However, there is a possibility that it may be mixed into the circulating air to contaminate the circulating air and deteriorate the quality of the product cloth. Therefore, in the heat setting device, a filter device is installed in the flow path of the circulating air and the filter device removes the impurities to clean the circulating air. However, there is a problem that if the filter body of the filter device becomes clogged, the air volume and temperature become uneven, which affects the product.

Therefore, conventionally, in order to remove impurities adhering to the surface of the filter body by suction, the suction port of the suction device is arranged on the upstream side of the air flow of the filter body. In addition to covering a part of the filter body, the driving device drives the suction port of the filter body or the suction device so that the suction port periodically faces all the surfaces of the filter body, and the upstream side of the filter body The impurities adhering to the surface were removed by suction.

[0005]

However, when impurities such as cotton dust adhering to the surface of the filter body are sucked in as described above, when dust containing moisture is entangled in the eyes of the filter, It was not possible to completely remove by suction from the filter body only by using the suction device, which gradually became a cause of clogging of the filter.

The present invention was developed in view of the above points, and an object thereof is a hot air dryer or the like which can more reliably remove impurities attached to the surface of the filter body. To provide a filter device in.

[0007]

In order to effectively achieve the above object, the present invention has the following structure. That is, the filter body is arranged so as to block the air flow, and a suction means for sucking and removing impurities adhering to the surface of the filter body from the suction port is provided, and the suction port is a part of the upstream surface of the filter body. At least one of the filter body and the suction port has a driving means, and the suction port periodically faces all the surfaces of the filter body by driving by the driving means. In such a filter device,
The air outlet of the dust removing means for blowing off the impurities adhering to the filter body is arranged at a position facing the suction port of the suction means via the filter body.

[0008]

With the above-mentioned structure, impurities such as cotton dust adhering to the surface of the filter body are removed by suction from the upstream side of the air stream by the suction port of the suction means, and at the same time face the suction port. Impurities entangled in the eyes of the filter body are also blown up above the filter body by blowing out air from the outlet of the dust removing means arranged on the downstream side of the body, and the impurities adhered to the eyes of the filter body. Can be reliably removed by suction.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The filter device 1 according to the present invention is used, for example, in a high echo tenter 2 as illustrated. The tenter 2 includes a widening device (not shown) that pulls and spreads both ends of the cloth with a pin or a clip, and a heat setting device (not shown) that blows hot air to the widened cloth to set the heat. ing. A large number of filter devices 1 are arranged in predetermined positions in the tenter. The set of filter devices 1 includes two filter bodies 3, a suction unit 4, and a dust removing unit 5.

The filter body 3 is formed by stretching a mesh 7 on the upper surface of a disc-shaped frame 6. A gear 8 is formed on the periphery of the frame 6. The gear 8 includes a ring gear 10 fitted to the first rotating shaft 9 and the second rotating shaft 1.
It is meshed with the ring carrier 12 fitted in 1. The first rotary shaft 9 is connected to a drive motor (not shown) via a plurality of bevel gears / drive shafts (not shown). Therefore, the filter body 2 is adapted to continuously rotate about the axis of the frame 6 by the drive of the drive motor. The second rotating shaft 11 transmits the rotation of the first rotating shaft 9 to the adjacent filter body 3. That is, when the first rotation shaft 9 rotates, the two filter bodies 3 rotate at the same time.

The suction means 4 has a suction port (nozzle) 13. The suction port 13 is arranged on the upstream side of the filter body 3 and is formed in a size that covers a certain portion connecting the rotation center axes of both filter bodies 3, and a pipe 14 connected to an intermediate portion of the suction port 13 is formed. It is connected to a separately provided suction means body (not shown). Suction means 4
Is adapted to continuously suck the impurities adhering to the surface of the filter body 3 from the suction port 13. The size of the mesh 7 of the filter body 3 is preferably about 20 to 30 mesh.

The dust removing means 5 has an outlet 15. The blowout port 15 is arranged on the downstream side of the filter body 3 and is arranged at a position facing the suction port (nozzle) 13. And it is formed in a size that covers a certain portion that connects the rotation center axes of both filter main bodies 3,
It is connected to a separately provided dust removing means main body (not shown) through a pipe connected to the intermediate portion. The dust removing means 5 blows air from the air outlet 15 and blows upward the impurities attached so as to be entangled with the surface of the filter body 3 and the eyes.

Since the filter device 1 has the above-described structure, the suction port 13 and the outlet port 15 are rotated once in the constant cycle so that all of the filter body 3 is rotated. The filter body 3 facing the surface and constantly blowing air from the outlet 15 to the surface of the filter body 3 from the downstream side of the filter body 3
The impurities entangled in the eye are blown up, and the blown up impurities and the impurities adhering to the upstream surface of the filter body 3 are sucked up by the suction port 13 arranged on the upstream side of the filter body 3, Impurities adhering to the surface of the filter body 3 can be surely removed by suction, and a stable filter effect can be exhibited.

The filter device according to the present invention is
It is not limited to the above embodiment. For example, in the above embodiment, the filter device was used in the tenter,
It can be used in all devices where it is necessary to clean the air. In the above embodiment, the filter body was driven by the driving device, but the filter body is fixed, and the suction port and the air outlet may be driven in synchronization, or the filter body and Both the suction port and the air outlet may be driven. In the above embodiment, the suction from the suction port is performed continuously, but it may be performed intermittently. The drive of the filter body may be performed intermittently. In the above embodiment, the number of filter devices is two, but it may be one or three or more. In the above embodiment, the rotary motion of the rotary shaft is transmitted to the filter main body through the gear provided on the frame of the filter main body, but the rotary shaft is provided on the shaft of the filter main body and directly rotated by the rotary shaft. You may allow it.

[0015]

As is apparent from the above description, in the filter device of the present invention, the filter body is arranged so as to block the air flow, and the filter body filters impurities in the air flow and adheres to the surface of the filter body. The generated impurities are blown upward by the air blown from the air outlet arranged on the downstream side of the filter body, and the impurities are sucked and removed from the suction port arranged on the upstream side of the filter body. Impurities entangled in the eyes of the main body can be removed by suction more reliably than in the conventional case.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of an embodiment according to the present invention,

FIG. 2 is a sectional view of a driving portion of a filter device,

FIG. 3 is a plan view of an embodiment in which suction means is provided,

FIG. 4 is a plan view of an embodiment in which blowing means is provided,

5 is a side view of FIG. 3,

6 is a side view of FIG. 4,

[Explanation of symbols]

 1 ... Filter device 3 ... Filter body 4 ... Suction means 16 ... Suction port 5 ... Dust removal means 18 ...

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location // D06C 7/00 Z

Claims (1)

[Claims] 1. A filter body is provided so as to block an air flow, and a suction means for sucking and removing impurities adhering to the surface of the filter body from a suction port is provided, and the suction port is a surface on the upstream side of the filter body. At least one of the filter body and the suction port has a driving means, and the suction port is periodically driven by this driving means so that the suction port periodically covers all surfaces of the filter body. In the filter device so as to face with, the air outlet of the dust removing means for blowing away the impurities adhering to the filter body is arranged at a position facing the suction port of the suction means via the filter body. Filter device for hot air dryers, etc.