JP3226809U - Cleaning unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning unit for reducing the influence of dust generated when releasing a molded product on cleanliness in a clean room. In a cleaning unit (1) provided in or around a molding chamber (100) in which a material is molded, dust generated when a mold release agent (MR) applied to a molding surface (210) of a press molding device (200) evaporates at high temperature. The filter 2 for collecting dust is provided near the upper part of the molding chamber. Further, it further includes a fan 3 for generating a flow of air in the molding chamber, a supply port 4 for the clean air that has passed through the filter, and a hanging wall 5 for rectifying the supply air from the supply port. [Selection diagram] Figure 1

Description

The present invention relates to a cleaning unit.

2. Description of the Related Art Conventionally, a press molding apparatus has been used in which a pair of molds are separated from each other, a work is supplied between them, the molds are pressed close to each other, and then the molds are separated from each other to separate a molded product (for example, See Patent Document 1). When cleanliness is required, a press molding apparatus may be used in a clean room.

JP 2004-174813 A

However, dust generated when releasing the molded product may affect the cleanliness in the clean room.

Therefore, an object of the present invention is to provide a cleaning unit that reduces the influence of dust generated when a molded product is released from the mold on the cleanliness in the clean room.

One aspect of the present invention is a cleaning unit provided in or around a molding chamber in which a material is molded,
A filter installed near the upper part of the molding chamber for collecting and collecting dust generated by high-temperature evaporation of the mold release agent applied to the molding surface of the press molding device,
A fan that causes the flow of air in the molding chamber,
Supplying clean air that has passed through the filter and returning it to the molding chamber, an air supply port provided downward,
A slide damper for adjusting the amount of air supplied from the air supply port,
A hanging wall that is arranged between the press molding device and a standing position of an operator who performs a molding operation using the press molding device, and rectifies the air supply from the air supply port;
And a cleaning unit that produces a flow of air circulating around the press molding apparatus.

Dust (particulate matter) is generated when the particles of the release agent applied to the molding die surface of the press molding device evaporate at high temperature. On the other hand, according to the above-mentioned cleaning unit, the dust is collected by the filter, so that the influence on the cleanliness in the molding chamber (clean room) is reduced.

In the cleaning unit as described above, the hanging wall may hang vertically downward.

Further, the hanging wall may be arranged in front of and above the operator.

According to the present invention, it is possible to reduce the influence of dust generated when a molded product is released from the mold on the cleanliness in the clean room.

It is a figure which shows roughly an example of the molding room (clean room) in which the cleaning unit was provided.

Hereinafter, the configuration of the present invention will be described in detail based on an example of an embodiment shown in the drawings.

The cleaning unit 1 is a unit provided in or around a clean room (molding chamber) in which a material is molded. The cleaning unit 1 of this embodiment includes a filter 2, a fan 3, an air supply port 4, a hanging wall 5, and a slide damper 6 (see FIG. 1).

The filter 2 is provided as a dust collecting unit that collects dust D generated by high temperature evaporation of the release agent MR applied to the molding die surface 210 of the press molding apparatus 200. The filter 2 is preferably installed near the upper part of the clean room 100. Since the dust D generated during the press molding operation has a high temperature and easily scatters to the upper portion, in the present embodiment, the dust D generated from the press molding apparatus 200 can be efficiently collected and collected. The filter 2 is installed on the bottom surface of the fan room (blower room) 130 installed above the press molding apparatus 200 (see FIG. 1 ).

As the filter 2, it is preferable to use a HEPA filter which is an ultra-high performance filter suitable for use in a situation where high cleanliness is required. In this embodiment, the filter 2 in which the pre-filter 21 and the HEPA filter 22 are combined is adopted (see FIG. 1). The pre-filter 21 has a structure that can be detached and replaced without using a tool.

The fan 3 causes an air flow in the clean room 100 so that the dust D can be easily collected by the filter 2. In this embodiment, a fan room 130 is provided above the press molding apparatus 200, and the fan 3 is installed in the fan room 130. A power line 34 is connected to the fan 3. The power line 34 is connected to the operation switch 32 mounted on the inner wall of the clean room 100.

The air supply port 4 is a ventilation port for returning the clean air that has passed through the filter 2 into the clean room 100, and is provided on the bottom surface of the fan room 130 and at a position apart from the filter 2 (see FIG. 1 ). In the present embodiment, the air supply port 4 is arranged at a position closer to the filter 2 (closer to the standing position of the worker), and the clean air is supplied downward to form an air curtain. 42 is provided to generate a flow of air around the press molding apparatus 200. It should be noted that supplying the clean air directly downward is only a preferable example, and in addition to this, the air may be supplied obliquely downward, sideways, or the like.

The hanging wall 5 is provided as a member for rectifying the air supply from the air supply port 4. In the present embodiment, an acrylic straightening plate is attached in front of the outlet of the air supply port 4 (close to the standing position of the worker) to form the hanging wall 5, and the air that blows downward from the air supply port 4 is formed. The curtain airflow can be adjusted. Further, the hanging wall 5 is arranged between the press forming apparatus 200 and the standing position of an operator who performs a forming operation using the press forming apparatus 200, and dust in the work area (around the operator's hand). Rectification is performed to increase the air curtain effect by the air supply from the air supply port 4 so that D does not easily flow to the clean room 100 side.

The slide damper 6 is provided as an adjusting device that can attenuate the amount of air supplied from the air supply port. The slide damper 6 of the present embodiment is configured by a sliding door provided on a wall portion of the fan room 130 and slidable in the left-right direction (a direction perpendicular to the paper surface in FIG. 1) when viewed from the operator (see FIG. 1 ). ). When the slide damper 6 is slid to the left and right to change the opening area, the amount of air passing through the opening area also changes, so that the amount of air supplied from the air supply port 4 can be adjusted.

Further, a HEPA box 12 and a manometer 14 are further provided in or around the clean room 100.

The HEPA box 12 is a device that supplies air from the outside to the inside of the clean room 100, and includes a HEPA filter 12H, a blower fan (not shown), and the like. The HEPA box 12 of this embodiment is installed so as to send fresh air from the ceiling of the clean room 100 into the room (see FIG. 1 ).

The manometer 14 is a differential pressure gauge attached to the inner wall of the clean room 100, and constantly measures the fluid pressure after passing through the filter 2 and displays the value. By checking the value displayed on the manometer 14, the filter clogging and the filter replacement time can be grasped at any time.

In FIG. 1, the arrow pointing from the clean room 100 to the backyard 300 indicates the flow of air. In the present embodiment, since the clean room 100 is constantly fed with fresh air to have a positive pressure (positive pressure), some air flow is generated toward the backyard 300 from the joint or the gap between the devices. In addition, a flow of air from the clean room 100 toward the underfloor may occur.

The molding operation in the clean room 100 is generally as follows. That is, the mold release agent MR is applied to the molding die surface 210 using the spray gun 50 in a state where the pair of molds of the press molding apparatus 200 are separated from each other, the work W is supplied, and the molds are brought close to each other to press and mold. To do. Then, the two molds are separated from each other to separate the molded product.

During such a series of molding operations, when the particles of the release agent MR become hot and evaporate, dust (particulate matter) D is generated (see FIG. 1). On the other hand, according to the cleaning unit 1 of the present embodiment, by collecting the dust D with the filter 2, it is possible to reduce the influence on the cleanliness in the clean room 100.

Further, in the present embodiment, when the cleaning unit 1 is in operation, the air after collecting dust (clean air) is discharged to the room instead of outside the clean room 100. This is advantageous in that it can be cooled by using indoor air conditioning to save energy, and that the indoor conditions (temperature and humidity/cleanliness) of the clean room 100 can be prevented from being affected.

The above-described embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention.

INDUSTRIAL APPLICABILITY The present invention is suitable for application to a molding chamber in which a material is molded or a cleaning unit provided around it.

1... Cleaner unit, 2... Filter, 3... Fan, 4... Air supply port, 5... Hanging wall, 6... Slide damper (adjusting device), 100... Clean room (molding chamber), 200... Press molding device, 210... Molding Mold surface, D... Dust, MR... Release agent

Claims (3)

A cleaning unit provided in or around a molding chamber in which the material is molded,
A filter installed near the upper part of the molding chamber for collecting and collecting dust generated by high-temperature evaporation of the mold release agent applied to the molding surface of the press molding device,
A fan that causes the flow of air in the molding chamber,
Supplying clean air that has passed through the filter and returning it to the molding chamber, an air supply port provided downward,
A slide damper for adjusting the amount of air supplied from the air supply port,
A hanging wall that is arranged between the press molding device and a standing position of an operator who performs a molding operation using the press molding device, and rectifies the air supply from the air supply port;
And a cleaning unit for producing a flow in which air circulates around the press molding apparatus. The cleaning unit according to claim 1, wherein the hanging wall hangs vertically downward. The cleaning unit according to claim 2, wherein the hanging wall is arranged in front of and above the operator.

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