KR100691794B1 - Bubble maker for cushion - Google Patents

Abstract

A bubble generating unit for manufacturing a bed cushion using a latex material is provided to obtain a cushion having high elasticity and a high restoring force by improving the formation of the cushion formed of the latex material. A bubble generating unit for manufacturing a bed cushion using a latex material includes a generation body(55), a cover(56), and a generator. The generation body is fixed to a supporter installed in a frame and is maintained by a guide bar protruding forward. The cover is engaged with the front side of the generation body. The generator includes a generation space between the generation body and the cover to generate bubbles by mixing the latex material and air. The generator includes a rear generator, a front generator, and a middle generator. The rear generator is fixed to the generation body. The front generator is formed in the cover. The middle generator is provided between the rear and front generator to be rotated by a drive unit.

Description

Foam maker for latex raw material for bedding cushions production {Bubble maker for cushion}

1 is a simplified configuration diagram showing a bedding cushion manufacturing process for explaining the technology of the present invention.

Figure 2 is a perspective view showing a latex material foaming device for producing a bedding cushion applied with the technique of the present invention.

Figure 3 is a cross-sectional view taken along line A-A of the latex material foaming device for producing bedding cushions to which the technique of the present invention is applied.

4 is a cross-sectional view taken along line B-B of the latex material foaming device for producing a bedding cushion applied to the technique of the present invention.

Figure 5 is an excerpt of the important part of the latex material foaming device for producing a bedding cushion applied technology of the present invention.

Figure 6 is a cross-sectional view showing another example of a latex material foaming device for producing bedding cushions applied with the technique of the present invention.

* Description of the symbols used in the main parts of the drawings *

50; Foam generator

60; Generator

61; Rear generator

62; Front Generator

63; Middle generator

71,72,73; Creation

The present invention relates to a latex material foaming device for producing a bedding cushion, and more particularly, a device for generating a foam (bubble) inside the raw material to impart cushioning properties when manufacturing bedding or other cushioning material as a latex It is about the provision of.

Bedding cushions are of various types, such as pillows, bed mattresses, sofa cushions, cushion cushions, and similar products, such as mouse pads and wrist rests, which differ only in function and use. .

Since the cushion used for the above-mentioned use is usually made of a material such as polyurethane or sponge, it has elasticity at the initial stage of molding, and the restoring force to the original state is good even if there is deformation.

However, as time goes by, the elasticity decreases and the hard texture changes, as well as a phenomenon in which the deformed portion does not return quickly or does not return at all.

When such a phenomenon occurs, due to the nature of the bedding to be in contact with the body is a situation that causes the body parts in contact with the cushioning material, such as the neck, back, spine and waist.

In order to solve this problem, a method of manufacturing cushions for bedding or other products using latex raw materials, which have been introduced in recent years, has been developed and used. In this case, by injecting foaming chemicals and air into the latex raw materials and mixing them together to form them. Good elasticity and resilience.

Conventionally, since air is injected into the latex raw material by simply stirring to generate bubbles inside the raw material, even if the stirring state actually passes through the molding process, the bubble injected into the raw material is not evenly dispersed and concentrated in one place. As a result of this phenomenon, the quality of the produced cushion is not good.

In other words, when the bubbles inside the raw material are concentrated in one place, the space generated by the bubbles is dense and uneven in the molded cushion, and a large space is formed where the bubbles are concentrated, thereby losing the function as an actual cushion. Of course, there are many problems such as deterioration of the value of the product.

In the present invention, to solve the problems described above, the present invention provides a foaming device that allows the bubbles generated by the air injected into the latex raw material to have a uniform and small size to form a cushion formed of latex as a raw material The purpose of the present invention is to provide a cushion having excellent elasticity and resilience by maintaining a dense and uniform state, which is a space generated by bubbles within the molded cushion while improving the performance.

Hereinafter, with reference to the accompanying drawings will be described a preferred configuration and operation of the present invention for achieving the above object.

Figure 1 is a simplified configuration diagram showing a bedding cushion manufacturing process for explaining the technology of the present invention, Figure 2 is a perspective view showing a latex raw material foaming device for producing a bedding cushion applied technology of the present invention, Figure 3 A-A cross-sectional view of the latex material foaming device for producing bedding cushions applied technology of the present invention, Figure 4 is a cross-sectional view of B-B line of the latex material foaming device for manufacturing bedding cushions applied technology of the present invention, Figure 5 Excerpts of important parts of the latex material foaming device for producing a bedding cushion applied to the technique of the present invention, Figure 6 will be described together with a cross-sectional view showing another example of the latex material foaming device for producing a bedding cushion applied to the technology of the present invention.

The foaming device 50 to which the technique of the present invention is applied has a generating body 55 which is radially fixed to the supporter 52 standing behind the frame 51 and is maintained as a guide bar 53 protruding forward. Equipped.

The cover body 56 is coupled to the front of the body body 55 and the body space 55 formed by the body body 55 and the cover 56 is substantially supplied with latex raw material and air to mix and foam. And a generator 60 to generate.

The generator 60 is provided between the rear generator 61 fixed to the generating body 55 and the front generator 62 formed on the cover 56, and the middle generator 63 that rotates between the rear and front generator 62. ).

A central portion of the rear generator 61 protrudes backward to protrude a supply pipe 65 for connecting with a supply line 64 to receive latex raw material and air.

The supply pipe 65 is a rear of the supply pipe 65 to receive the power of the drive means 66 provided on the side of the frame 51 through the conversion means 67 to rotate the middle generator (63) The drive shaft 69 held by the shaft support 68 is introduced.

Of course, between the supply pipe 65 and the drive shaft 69, while preventing the outflow of the raw material to be supplied, it will be natural to take the airtight means 70 so as not to interfere with the rotation of the drive shaft 69.

On the opposite sides of the rear and front generators 61 and 62 and on both sides of the middle generator 63, a plurality of generating protrusions 71, 72, and 73 are formed in concentric circles and formed on the middle generator 63. The protrusion 73 is positioned between the generating protrusions 73 formed on the rear and front generators 61 and 62.

The generating protrusions 71, 72, and 73 are provided in the shape of a pin having radially regular or irregular intervals at the center of the rear, front, and middle generators 61, 62, and 63, and are formed in the middle generator 63. The production protrusions 73 are formed in the rear and front generators 61 and 62 in the rotational direction, and the production protrusions 71 and 72 are supplied in the direction facing the production protrusions 73 formed in the middle generator 63. It is preferable that the cutting angle α is formed so as to cut the air contained therein.

A space 77 is formed between the inner diameter 75 of the rear and front generators 61 and 62 and the outer diameter 76 of the middle generator 63 to generate between the rear and middle generators 61 and 63. The foam is introduced into the middle and front generators (63, 62) to serve as a passage for the foam to be regenerated.

In the central portion of the front generator 62 is formed by forming a discharge port (78) protruding in the outward direction so as to discharge the raw material generated by the foam, if the amount of raw material or to form the foam more evenly This is possible by increasing the diameter of the generator 60.

In another example of the present invention, by connecting several generators 60 in series without increasing the diameter of the generator 60 and receiving the raw material from which the primary bubbles are generated, the bubbles are formed again, thereby making the bubbles more compact. It may be evenly distributed.

Bubble production apparatus 50 of the present invention as described above,

The latex and air mixed with chemicals for foaming are supplied to the supply line 64, and the middle generator 63 constituting the generator 60 is rotated.

Then, the raw material is provided in the rear generator 61 and injected through the supply pipe 65 protruding to the rear of the production body 55, the injected raw material along the supply pipe 65 and the rear generator 61 and the middle generator ( While slowly moving in the outward direction from the center of the rear of 63), the air is cut into small pieces while mixing the raw material and air evenly by the production protrusions 71 and 73 so that the air is evenly mixed throughout the raw material.

In addition, the raw material in which air and raw materials are primarily mixed in the rear of the rear generator 61 and the middle generator 63 is the outside of the inner diameter 75 and the middle generator 63 of the rear and front generators 61 and 62. Through the space portion 77 formed between the neck portion 76 is gradually supplied to the central portion at the outer portion between the front of the middle generator 63 and the front generator 62 is supplied by the generating projections (72, 73) In addition to mixing the air and the raw material evenly, it is produced in a small size so that the air can be evenly mixed with the raw material.

As described above, the raw material and the air are uniformly mixed by the rear, front, and middle generators 61, 62, and 63, and are produced in a small size so that the air is evenly mixed with the raw material. Same as

Raw materials and air introduced into the rear, front and middle generators 61, 62, and 63 are formed on the rear, front and middle generators 61, 62, and 63, respectively, and are formed to be engaged in a displaced shape. 73), raw materials and air are cut to smaller sizes, and mixed evenly to form bubbles.

Particularly, in the case of the generating protrusions 71, 72, and 73, the generating protrusions 73 formed on both sides of the rotating middle generator 63 form a cutting angle α in the rotation direction, and the rear and front generators ( The forming protrusions 71 and 72 formed on the 61 and 62 form a cutting angle α in the direction in which the forming protrusions 73 of the middle generator 63 face each other. In the process of moving from the center of the generator 60 to the outside and from the outside to the center is made of a smaller size and evenly mixed and discharged to the outlet 78 provided in the front generator 62 when the raw material and air Is mixed evenly and the foam is created.

As described above, the raw material in the thick foam state is transferred to the molding mold through the discharge port 78 and filled and cured to complete the cushioning material.

The present invention as described above provides a foaming device that allows the bubbles generated by the air injected into the latex material to have a uniform and small size to improve the formability of the cushion formed of the latex material as a raw material of the molded cushion It is an invention having various effects, such as providing a cushion having excellent elasticity and resilience by maintaining a dense and uniform state that is a space generated by bubbles.

Claims (4)

In the foaming device 50 to make a thick foam by mixing the latex raw material and the air to make a cushion with a small key evenly; A production body 55 fixed to the supporter 52 standing on the frame 51 and maintained by a guide bar 53 protruding forward; A cover 56 coupled to the front of the generating body 55; A generator (60) provided in the production space (57) between the production body (55) and the cover (56) to generate bubbles by mixing latex raw materials and air; The generator (60) includes a rear generator (61) fixed to the production body (55); A front generator 62 formed on the cover 56; A middle generator (63) provided between the rear and front generators (62) and rotated by a driving means (66); A supply pipe 65 protruding to the rear of the center portion of the rear generator 61 and connected to a supply line 64 to receive latex raw material and air; On the opposite sides of the rear and front generators (61, 62) and both sides of the middle generator (63) formed in concentric circles to produce air (71, 72, 73) to make the air to a small size while mixing the raw material and air; ; A generation protrusion (73) formed in the middle generator (63) is positioned between the generation protrusion (73) formed in the rear and front generators (61, 62); Bubbles formed between the inner diameter portion 75 of the rear and front generators 61 and 62 and the outer diameter portion 76 of the middle generator 63 and generated between the rear and middle generators 61 and 63 are generated in the middle and front. A space portion 77 serving as a passage so as to flow into the generators 63 and 62 to regenerate the bubbles; A foaming device for producing latex material foam for bedding cushions, characterized in that it comprises an outlet (78) for discharging the raw material is completed foaming in the outward direction from the center of the front generator (62). The method of claim 1; The generating protrusions 71, 72 and 73 in the form of fins having regular or irregular intervals radially at the center of the rear, front and middle generators 61, 62 and 63; The generation protrusion 73 formed in the middle generator 63 is rotated in the direction of rotation; The generating protrusions 71 and 72 formed in the rear and front generators 61 and 62 cut the air contained in the raw material supplied in a direction facing the generating protrusions 73 formed in the middle generator 63. Latex raw material foam production apparatus for producing a bedding cushion, characterized in that for forming a cutting angle (α) to be carried out. The method of claim 1; Latex raw material foam production apparatus for producing a bedding cushion, characterized in that to increase the diameter of the generator (60) to increase the amount of raw material or even more foaming. The method of claim 1; The generator 60 is connected in series to receive the raw material from which the primary bubble is produced, and the bubble is generated again so that the size of the bubble is evenly distributed and distributed evenly. .

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