CN205443558U - A two-way vacuum device - Google Patents

Abstract

The utility model relates to a two-way evacuating device, including lower die body and last die body, be equipped with one and seal the cavity that carries out the evacuation under and between last die body, be equipped with on the die body down with the communicating lower evacuation passageway of cavity, be equipped with the film body that can be with the gauze of needs pressfitting on last die body, hug closely the last evacuation passageway of last die body internal surface with the film body when being equipped with the evacuation on last die body. The scheme provides a two-way evacuating device that the bonding yarn combines closely, and is effectual.

Description

A two-way vacuum device

【Technical field】

The utility model relates to a two-way vacuuming device.

【Background technique】

In the prior art, when the yarns are pressed together, in order to combine them more tightly, it is necessary to vacuumize in advance, so that the pressed joints between the yarns are in a vacuum state. But due to existing, the air discharge is not clean enough, and air is contained in the product, causes not tight bonding between yarn and yarn, and processing effect is not good.

【Content of invention】

The purpose of the utility model is to overcome the deficiencies of the prior art, and to provide a two-way vacuuming device with tight bonding and good effect.

In order to solve the problems of the technologies described above, the utility model adopts the following technical solutions:

A two-way vacuuming device is characterized in that it includes a lower mold body 1 and an upper mold body 2, a cavity 3 that can be closed for vacuuming is provided between the lower mold body 1 and the upper mold body 2, and a There is a lower vacuum passage 4 communicating with the cavity 3, and the upper mold body 2 is provided with a membrane body 7 of gauze that needs to be pressed together, and the upper mold body 2 is provided with the membrane body when it is vacuumed. The upper vacuum channel 5 on the inner surface of the upper mold.

The above-mentioned two-way vacuuming device is characterized in that a platform 6 on which gauze needs to be pressed is placed in the cavity 3 .

The above-mentioned two-way vacuum device is characterized in that it also includes a driving structure for pressing the upper mold body 2 downward.

Compared with the prior art, the utility model has the following advantages:

In this case, after the product is put into the cavity, the upper vacuum channel is used to evacuate, so that the membrane body is close to the bottom of the upper mold body, and then the lower vacuum channel is used to evacuate the cavity, and then the upper vacuum channel Break the vacuum. At this time, the film body is attracted by the vacuum of the cavity and clings to the surface of the product, so that the air inside the product is emptied, and then the upper mold body presses the product tightly, so that the yarn and the yarn are more tightly combined. , which not only ensures the strength of the product, but also makes the appearance of the product better.

【Description of drawings】

Fig. 1 is a structural representation of the utility model.

【detailed description】

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in the figure, a two-way vacuuming device includes a lower mold body 1 and an upper mold body 2, a cavity 3 that can be closed for vacuuming is provided between the lower mold body 1 and the upper mold body 2, and the lower mold body 1 A lower vacuum passage 4 communicating with the cavity 3 is provided on the top, and a film body 7 of gauze that needs to be pressed is provided on the upper mold body 2, and the membrane body is tightened when vacuuming is provided on the upper mold body 2. The upper vacuum channel 5 attached to the inner surface of the upper mold. When in use, after putting the product into the cavity, use the upper vacuum channel to evacuate, so that the membrane body is close to the bottom of the upper mold body, and then use the lower vacuum channel to evacuate the cavity, and then the upper The vacuuming channel breaks the vacuum. At this time, the membrane body is attracted by the vacuum of the cavity and clings to the surface of the product, so that the air in the product is emptied. After that, the upper mold body compresses the product tightly to make the yarn and the yarn more tightly. Combined together, it not only ensures the strength of the product, but also makes the appearance of the product more beautiful.

More preferably, a platform 6 for placing gauze to be pressed is provided in the cavity 3 . Multiple layers of yarn are laid out on a platform, which is then covered by a membrane.

In addition, it also includes a driving structure for pressing the upper mold body 2 downward.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present utility model.

Claims (3)

1. A two-way vacuuming device is characterized in that it comprises a lower mold body (1) and an upper mold body (2), and a sealable vacuum pump is provided between the lower mold body (1) and the upper mold body (2). Cavity (3), the lower mold body (1) is provided with the lower vacuum channel (4) communicating with the cavity (3), and the upper mold body (2) is provided with the film of gauze that needs to be pressed body (7), and the upper mold body (2) is provided with an upper vacuum passage (5) for making the membrane body close to the inner surface of the upper mold when vacuuming. 2. The two-way vacuuming device according to claim 1, characterized in that a platform (6) on which gauze needs to be pressed is provided in the cavity (3). 3. The two-way vacuum device according to claim 1 or 2, characterized in that it also includes a driving structure for pressing the upper mold body (2) downward.