JPH0123154B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for manufacturing a cushion material. More specifically, the present invention relates to a method and apparatus for producing cushion materials used for seats and the like made of synthetic fiber filament aggregates having three-dimensional curls.

The cushion material is made by cutting a filament with three-dimensional curls to a specified size and making it into cotton, then compression-molding it into a specified shape while opening the cotton, and bonding the contact points of the filaments with adhesive.The cushion material has high rebound elasticity and is breathable. The present inventor has previously discovered that it has excellent cushioning properties.
No. 152573). Further, a cushion material is provided in which the mutual contact points of the filaments of a synthetic fiber filament assembly having three-dimensional curls are bonded with an adhesive, and the curl shape of the filaments of the cushion material is partially oriented in a direction. The curl filaments, which have various shapes and are formed by stretching and deforming, are formed in a direction in which the load strength is to be produced, and the entangled portions are formed as required. The present inventor has also previously discovered that a filament locking material distributed according to the load strength has an even more excellent effect (Japanese Patent Application Laid-Open No. 1989-1999).
No. 138669).

These cushion materials are made by compressing three-dimensional curled filaments made of cotton using an endless belt and/or rollers or other means to form a filament aggregate block having a predetermined bulk density, and then equipping this formed body with barbs. After needling with a needle to achieve a predetermined needle density, or rubbing, or without applying these, adhesive liquid is applied from above to the filament molded body on an endless belt running in an almost horizontal direction. or by immersing the filament molded body in the adhesive liquid and then pulling it out of the liquid.
It is manufactured by heating and drying on an endless belt running in a nearly horizontal direction.

However, such a method is suitable for continuously manufacturing rectangular products with uniform cushioning properties (hardness) and thickness, such as cushioning materials for beds, but it is suitable for manufacturing cushioning materials for automobile seats, etc. The disadvantage is that it is difficult to apply to the production of cushion materials that are vertically asymmetrical, have uneven parts, and have partially different hardness distributions. For example, when manufacturing seat cushion material 1 having the shape shown in Fig. 1, a mold with a surface shape that matches this is mounted on the endless belt, and this surface faces downward. Although moldable, it is extremely difficult to automatically form the lower recessed structure 2 by a mechanical method. Furthermore, as shown in FIG. 2, even if the final shape of the seat cushion material 3 does not have a recessed structure, it is possible to reduce the hardness of the central portion 4 and increase the hardness of the peripheral portion 5 as a final product. Therefore, it is necessary to increase the compression ratio of the three-dimensional curl filament at the peripheral edge 5. To achieve this, as shown in FIG. On the other hand, the peripheral edge where a high compression ratio is required must be thick. However, since the three-dimensional curl filament short fiber aggregate is cotton-like and fluffy, if it is pressed with a rigid body, it will be compressed and the bulk density of that part will change. It has been extremely difficult to automatically form it by a mechanical method without having to do so.

In addition, the three-dimensional curl filament short fiber aggregate formed into a shape having an uneven structure is subjected to needling, etc., and then an adhesive is applied and then dried. In this case, the filament short fiber aggregate has a thickness Since there are heights and lows, for example, when drying is carried out while being pulled upwards, there is a drawback that it tends to be cut midway.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method for manufacturing a cushion material such as a cushion material for automobile seats, which has an asymmetrical complex shape and can have partially different hardness. Another object of the invention is to
The object of the present invention is to provide an apparatus for manufacturing such a cushion material.

These objectives are achieved by feeding an aggregate of short filament fibers having three-dimensional curls onto a net-like object being conveyed to a conveying device, and while moving the conveying device, a large number of needle-like objects are erected. The rotating body is rotated, the needle-like object is brought into contact with the filament short fiber aggregate, and a predetermined portion is scraped off to preform it into a predetermined shape, and the preform is compressed to a predetermined bulk density. This is achieved by a method for manufacturing a cushion material, which is characterized in that the preform is then coated with an adhesive liquid, and the preform coated with the adhesive liquid is pulled up together with the net-like material and heated and dried. .

This method of manufacturing a cushion material includes a device for conveying short filament fiber aggregates and net-like materials having three-dimensional curls, and a rotating body provided on the conveyance device and having a large number of needle-like objects erected thereon. A device for preforming the cushion material consisting of a collecting device, a device for compressing the preformed filament short fiber aggregate together with the net-like material, a device for applying an adhesive liquid to the compression molded body, and a drying device are sequentially provided. This is carried out using a cushion material manufacturing apparatus.

The synthetic fibers used in the present invention include:
Examples include polyester, polyamide, polypropylene, etc., and polyester is most preferred. Its thickness is 30-2000 denier as monofilament, preferably 50-1000 denier, most preferably 100 denier
It is a filament with ~600 denier and three-dimensional curl. The three-dimensional curl here means a three-dimensional curl in a broad sense such as bidirectional curl and three-directional curl, but preferably a three-dimensional three-dimensional curl filament.
A double-twisted filament D as shown in FIG.
A three-dimensional three-dimensional curl filament F as shown in FIG. 5 is obtained by cutting the filament to a predetermined size and untwisting it. The length of the filament after cotton-making is preferably 25 to 200 mm, particularly preferably 60 to 150 mm. Thus, portions of the filament coil in portions a over portions b, and portions c coil over portions d. However, the e section does not coil over the f section, but below it. Thus, filament sections e through d are in two entanglements or coils of the helix. This can properly be called a non-directional helix, and is very similar to a spiral telephone cord that goes bad when one of its coils becomes non-directional with respect to the other.

Hereinafter, one embodiment of the method for manufacturing a cushion material according to the present invention will be described based on the drawings.

The apparatus according to the present invention mainly consists of the following as shown in FIGS. That is, a net-like material supply device 7, a preforming device 10, a compression device 8, an adhesive application device 9, a drying device 9', and a short filament fiber supply device 11 provided as necessary. First, the net-like material supply device 7 supplies the net-like material 7 from the roll 70 when one side of the filament assembly to be preformed, for example, the bottom surface, is flat.
1 may be sent as is to the preforming device 7, but
When one surface of the filament assembly to be preformed, for example, the bottom surface, has an uneven shape, a shape corresponding to this is formed. For example, as shown in FIG. 7, a net-like material 71 sent out from a roll 70 passes through a feed roller 72, is pressed by presser rollers 73a, 73b, and is then shaped into a predetermined shape by forming rollers 74a, 74b, for example, as a molding material to be described later. It is molded into the same shape as the mold 80, and further has similar press rollers 75a,
Pressed at 75b. In other words, a flat net-like object 7
1, rollers 73a, 73b and rollers 75a, 7
5b, and is formed into a predetermined shape by forming rollers 74a, 74b. After forming, it has a predetermined shape, so the presser roller 75a,
75b has the same shape as the normal forming rollers 74a and 74b. The molded net-like body 71 is then sent onto the lower mold 80 on the conveying device 12 of the preforming device 10. Note that although the above description has been about forming the net-like object using rollers, it is of course possible to form the net-like object using a press (not shown).

As the mesh, a mesh made of plastic, metal, etc., with a mesh spacing of about 5 to 100 mm, preferably 10 to 50 mm, and a wire diameter of 0.5 to 8 mm, preferably 1 to 5 mm, is usually used. .

As shown in FIG. 7, the preforming device 10 mainly consists of a short filament fiber conveying device 12 and a scraping device 13. The transport device 12 is
For example, an endless belt (for example, corner-shaped endless belt) provided between the chain 16 stretched between the sprockets 14 and 15, or a shape corresponding to a part of a molded product to be preformed on a normal endless belt ( For example, in the case of preforming a molded body as shown in FIG. one (e.g. sprocket 1)
4) is interlocked with a pulley 20 of a transmission 19 via a belt (or chain) 18 by a pulley 17. However, another pulley 2 of the transmission 19
1 is configured to be interlocked with a motor 23 via a belt (or chain) 22.

The scraping device 13 is provided on the conveying device 12. For example, as shown in FIG. 7, a rotating body holder 26 is slidably inserted inside a vertical frame 25 that projects from a horizontal frame 24 of the transport device 13. Both upper ends of the rotating body holder 26 are connected to one end of a wire 27, which is suspended from a pulley 28 fixed to the upper end of the vertical frame 25, and the other end is connected to a weight 29. Since they are connected, the rotating body holder 25 is always lifted upward by its gravity. In addition, the rotating body holder 2
A rotor 30 is provided on the side of the rotor 5 as necessary.
This makes it easy to smoothly move up and down the inner surface of the vertical frame 25. Furthermore, the rotating body holder 2
5, a rotating body 33 is fixed to a shaft 32 rotatably supported by a bearing 31, and this shaft 32 is connected to a pulley 34 coaxially attached.
It is linked to a power source (for example, a motor, a transmission, etc.) 36 via a belt 35. However,
A large number of needle-like objects are erected on the outer surface of the rotating body 33, as will be described later. On the other hand, the vertical frame 25
, a cam plate 39 is fixed to a shaft 38 that is rotatably supported by a bearing 37 fixed to the vertical frame 25 at an upper position of the rotating body holder 26, and the cam plate 39 is attached to the shaft 38, which is connected to the rotating body holder 26. The rotor 41 is in constant contact with a rotor 41 rotatably mounted on a stay 40 projecting from the top of the rotor 41 . In addition, the rotating body 3
A suction duct 42 communicating with a suction device (not shown) is provided at the rear of 3.

There are various types of needle-like objects that are erected in large numbers on the outer surface of the rotary body 33, and examples include clothing, metallic needles, horizontal needles, and porcupine needles. As shown in Figures 8 and 9, the clothing is a base layer 43 made of cotton cloth, linen cloth, rubber sheet, leather, etc., laminated with appropriate adhesive, and a base layer 43 with a diameter of approximately 0.2 to 2 mm.
mm, preferably 0.2 to 1 mm, are implanted at an appropriate density, and in addition to the linear ones as shown in Figure 8, the dogleg-shaped ones as shown in Figure 9, , and various other shapes. needle 4
The length of the needles 4 is usually 1 to 30 mm, preferably 2 to 15 mm from the surface of the base layer 43, and the needle planting density is 25 to 600 needles/in ² , preferably 36 to 400 needles/in 2 .
It is in ² . The angle of the needle 44 with respect to the tangent to the outer circumference of the rotating body 33 when the clothing is attached to the rotating body 33 varies depending on the length of the needle and the planting density, but it is usually 45 to 45° for straight needles when attached from the opposite direction of rotation. 100°,
Preferably it is 70-90°. Metallic is the first
As shown in FIG. The height of the sawtooth is 1 to 5 mm, and the sawtooth spacing is 5 to 20 pieces/in. Further, as shown in FIG. 11, a large number of needles 48 are provided protruding from the substrate 47.
It is also possible to use one in which the height is about 5 mm and the spacing is 1 to 10 teeth/inch, or one in which a large number of teeth 66 are protruded from a fiber-reinforced rubber substrate 65, as shown in FIG. As shown in FIG. 13, the Teikine is made by cutting and raising a band-shaped substrate 67 to form teeth 68, and is used by tightly wrapping it around the surface of the rotating body 33 in the circumferential direction.

The shape of the rotating body 33 is arbitrarily selected depending on the concave shape of the molded body to be scraped, and after being cylindrical,
There are barrel-shaped, abacus-shaped, spherical, egg-shaped, gourd-shaped, etc. Further, even when using a rotating body having these shapes, the length of the needles and the implantation density do not necessarily have to be uniform, and they may be partially changed. Furthermore, the number of rotating bodies 33 does not necessarily have to be one, and a plurality of rotating bodies 33 can be used depending on the desired shape. Furthermore, another groove can be formed in the preformed product as described above using another rotating body (not shown). Further, if the recessed structure to be scraped is a groove-like structure having a constant depth, the rotating body holder 26 does not need to be moved up and down using the cam plate 39, and may be of a fixed type.

The filament short fiber supply device 11, as shown in FIG. 6, for example, consists of a filament supply port 49 having a substantially vertical opening.
It opens on 2. A cotton opening machine 58, a conveyor 59, etc. are connected and provided above the supply port 49. Further, as a filament supply means, a card (not shown) may be used to form a web, and then the web may be laminated.

Next, a method for preforming a cushion material for a seat using the above-mentioned apparatus will be described. As shown in FIG. 2, short fibers F of synthetic fiber filaments having thick denier three-dimensional curls are sent to a de-fiber machine 58 using a conveyor such as a belt conveyor 59 as shown in FIGS. When supplied from the outlet 61 to the supply port 49, it is deposited to a predetermined thickness on the net-like body on the conveying device.

On the other hand, the power of the motor 23 is changed to a predetermined rotational speed by the transmission 19 and then transmitted to the pulley 14 by the belt 18, and the rotational force rotates the sprocket 14 and moves the endless belt 16 of the conveying device 12. . Thus, the filament assembly F is passed through the scraping device 13,
A necessary portion of the filament is scraped off by a needle-shaped object on the outer surface of the rotating body 33 which is rotated by the power transmitted from the motor 36 through the belt 35, and the scraped filament is suctioned and removed by the suction duct 42. The circumferential speed of the rotating body at this time is 150 to 2000 m/min, preferably 400 to 1500 m/min. Therefore, the rotating body holder 26 is constantly pulled upward due to the weight 29 attached to one end of the wire 27, but the rotor 41 attached to the top thereof is pressed against the cam plate 39. Therefore, its position is regulated by this. However, since this cam plate 39 is rotated by the power transmitted from the pulley 63 to the pulley 62 by the belt 64, the height of the rotary body 33 is determined by its rotation, so that the necessary depression is determined by the height of the cam plate 39. is formed into a filament assembly F. Note that the position of the rotating body holder 26 may be biased by a spring instead of using the weight 29.

The filament assembly F preformed in this manner is compressed by a compression device 8 to a predetermined bulk density. This compression device 8 is, for example, a roller similar to the presser roller 74a. Also, a press device may be used instead of the roller.

The filament assembly F preformed in this manner is further passed through a rubbing device if necessary, and rubbed with a bar or the like to obtain a predetermined bulk density. The filament assembly preformed in this way usually has a bulk density of 0.002 to 0.2 g/cm ³ , preferably 0.05 to 0.5 g/cm ³ .

If better rebound properties are required for the cushion material, the filament assembly block F is needled using a needling device 81 before applying the adhesive. In the needling method, a needle having at least one barb at the tip is used to prick the needle an appropriate number of times at an appropriate needle density using the apparatus and method disclosed in, for example, Japanese Patent Application Laid-Open No. 54-138669. The diameter and length of this needle are determined depending on the purpose, but they are usually 1.8 to 3.6 mm, 50 to 2000 mm long, and each needle usually has 4 to 12 barbs. Specifically, for example, while supporting the lower surface of a preformed filament assembly block on a belt conveyor with a flat plate, such as a perforated plate, a slit plate, a slit-shaped conveyor, etc., a perforated plate, e.g. The filament aggregate block is needled at an appropriate density by moving the needle fixture up and down, with or without using a perforated plate, slit plate, etc. the needles are mounted in one or more rows at desired intervals in a needle fixture, the mounting being effected by rotation of a crankshaft actuating a crank connected to the shaft and the fixture; During this time, the filament assembly block is run at such a speed that the needling is performed at appropriate intervals. The needle density can be varied depending on the purpose of use of the final cushion material and the desired compressive elasticity, and the higher the desired compressive elasticity, the smaller the needle spacing, but it is usually 1 to 100 needles/100cm. ² , preferably 4-50 pieces/100cm ²
It is. After being needled in this way,
Adhesive treatment and drying treatment are performed as described above.

Furthermore, instead of the above-mentioned needling, the filament may be compressed by a rolling method, a rubbing method, or the like. The rolling method is carried out, for example, by pressing a mounting plate on which a large number of needles are set up at predetermined intervals from above and below the filament, and then compressing at least one of the mounting plates while rolling.

The filament assembly thus compressed or further subjected to needling treatment or the like is covered with a net-like body 82, if necessary. This net-like body 82 may be the same as the above-mentioned net-like body 71 or may have a smaller diameter. This net-like material 82 is supplied from another net-like material supply device 83. In this net-like material supply device 83, as shown in FIG.
After being pressed by 86b, forming rollers 87a, 8
7b, a predetermined shape, for example, a compression molded body F to be described later.
It is molded into a shape similar to the surface shape of , and is further pressed by similar press rollers 88a and 88b. Next, this net-like material 82 is pressed onto the surface of the molded body F by a presser roll 89. This presser roll 8
9 has the same shape as the forming roller 87a. Note that this net-like material may be used as is in a flat state. Further, this net-like material may be placed before compression treatment and compression may be performed, or may be placed after compression and then needling may be performed.

The filament aggregate molded body F preformed in this manner is disclosed in Japanese Patent Application No. 53-163086 (Japanese Patent Application No.
-44057), and is immersed in the adhesive liquid 91 in the adhesive liquid tank 90, and then pulled vertically or almost vertically by another conveying device 92. increase. At this time, the surface tension of the liquid can reduce the dripping to some extent. During this time, the excess adhesive adhering to the filament molded body F flows down inside the molded body. Next, the filaments are passed through a high-frequency dielectric heating device 9' to evaporate the moisture or solvent of the adhering adhesive in a very short period of time, and at the same time, the adhesive is cured to some extent by the heat generated at that time, thereby bonding each contact point between the filaments.
After further movement by a conveying device, the obtained filament lock material is cut into predetermined dimensions. In addition, if there is a risk that the filament molded body F will be torn when pulling the filament molded body F in the vertical direction,
Before the dipping treatment, temporary bonding may be performed by spray-drying a small amount of adhesive liquid onto the horizontally traveling molded body.

Typical adhesives include synthetic rubbers such as styrene-butadiene rubber, acrylonitrile-butadiene rubber, chloroprene rubber, urethane rubber, etc.
Examples include natural rubber, vinyl acetate adhesive, cellulose acetate adhesive, acrylic adhesive, etc., and are used in the form of latex, emulsion, solution, etc., preferably in the form of latex or emulsion. The amount of adhesive applied is usually 10 to 300% based on solid content.
g/100g - filament, preferably 50-250
g/100g-filament.

The filament assembly F coated with adhesive passes through the heating device 9', but two rows of needles are inserted alternately at both the upper and lower ends of the holding guide.
This prevents the aggregate F from collapsing or tearing while being pulled upward, and at the same time prevents leakage of high frequency radio waves.

The filament molded body F passing through the high frequency dielectric heating device has a frequency of 1 MHz to 30 GHz, preferably
A high frequency of 10 MHz to 30 GHz is applied at a power density sufficient to heat and dry the adhesive liquid and give shapeability to the filament molded body, for example, 0.1 to 10 kwh/cm ³ , preferably 0.5 to 5 kwh/cm ³ . The heated solvent such as moisture is removed by drying and the filaments are bonded together. Therefore, even if the filament molded body F is pulled up, it will not be cut midway due to its own weight and the weight of the adhesive attached. Furthermore, if necessary, it is passed through a normal drying oven and heated to 80 to 200℃, preferably 100 to 160℃, by hot air, infrared rays, superheated steam, etc.
Post-curing is carried out by heating at a temperature of °C for 10 to 60 minutes, preferably 15 to 40 minutes, and then cut into predetermined dimensions using a cutting device. Note that the drying method does not necessarily have to be as described above, and may also be carried out using hot air, infrared rays, superheated steam, etc. while transferring in a horizontal, vertical, or diagonal direction using only a normal drying oven. good.

The cushion material thus formed is subjected to steam heat treatment, if necessary, before or after cutting into predetermined dimensions. That is, after being supplied to a press equipped with a steam outlet, the cushion material is pressurized at a temperature of 100 to 140°C, preferably 105 to 120°C, for 1 to 30 minutes, preferably 2 to 10 minutes, while blowing out steam. Compress. Next, the pressurization is released to stop blowing out steam, and after cooling with air, water, etc., the material is taken out from the press to obtain a cushion material. However, this steam pressurization has a compressibility of 5 to 50% relative to the thickness of the coarse cushion material.
40%, preferably 10 to 30%.

The method and device for manufacturing a cushion material according to the present invention involves feeding an aggregate of short filament fibers having three-dimensional curls onto a net-like material being conveyed to a conveying device, and while moving the conveying device, a large number of needle-like fibers are A rotary body made of upright objects is rotated, and the needle-like object is brought into contact with the filament short fiber aggregate and a predetermined portion is scraped off to preform it into a predetermined shape. This is done by compressing the preform to a density, then applying an adhesive liquid to the preform, and then pulling up the preform coated with the adhesive liquid together with the net-like material while heating and drying. Because it is fluffy and cotton-like, it is provided on a conveying device and is equipped with a scraping device consisting of a rotating body with a large number of needle-like objects standing upright. Not only can a concave structure of filament short fiber aggregates, which was extremely difficult to form using a rigid body using conventional mechanical methods such as pressing, be easily formed, but it also has the advantage of being able to be weighed while maintaining a predetermined shape. be.
In addition, since the net-like material is placed on a conveyor and transported to perform all processes after preforming, the object to be molded has a complex shape, so it is prone to tearing after the adhesive is applied and before drying is completed. However, because of this net-like material, this necessity is eliminated. In addition, since this net-like material remains attached to at least one surface of the product, when the cushion material obtained in this way is used as a seat of a vehicle such as an automobile, it cannot be used even if it is placed directly on the spring. There is no need for damage due to this. Further, if it is used on the plane of the net-like object, the above-mentioned advantages are further enhanced. Note that the surface of the cushion material in contact with the net-like material may be either the upper or lower surface thereof. Also, it may be on both sides. Furthermore, although the method for manufacturing the filament by depositing the filament on the net-like material has been described below, it goes without saying that the net-like material 82 may be placed on the net-like material after compression molding.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a seat cushion material produced by the method of the present invention, FIG. 2 is a schematic diagram of a final cushion material, and FIG. 3 is a preformed body for molding the cushion material shown in FIG. FIG. 4 is a partial perspective view of a double-twisted filament;
The figure is a front view of a three-dimensional three-dimensional curl filament, FIG. 6 is a schematic cross-sectional view of the cushion material manufacturing apparatus according to the present invention, FIG. 7 is a side view of the preforming apparatus, and FIG.
12 are cross-sectional views of the needle-like object used in the apparatus of the present invention, and FIG. 13 is a perspective view of the needle-like object. 10... Preforming device, 11... Filament short fiber supply device, 12... Conveying device, 13... Scraping device, 25... Vertical frame, 26... Rotating body holder, 33... Rotating body, 39 ...Cam board.

Claims (1)

[Claims] 1. An aggregate of short filament fibers having three-dimensional curls is fed onto a conveying device onto a net-like object having a shape corresponding to the shape of a mold and being conveyed by the conveying device. While moving on the conveying device, a cam mechanism rotates a rotating body comprising a number of needle-like objects that can be moved up and down on a rotating shaft, and brings the needle-like objects into contact with the filament short fiber aggregate. The preform is preformed into a predetermined shape by scraping off a predetermined portion, the preform is compressed to a predetermined bulk density, and then an adhesive liquid is applied to the preform, and the adhesive liquid is further applied. A method for producing a cushion material, which comprises heating and drying the preformed body together with the net-like material. 2. The method according to claim 1, wherein the rotating circumferential speed of the rotating body is 150 to 2000 m/min. 3. Claims 1 or 2 in which a plurality of rotating bodies each having a large number of needle-like objects are used.
The method described in section. 4. The method according to any one of claims 1 to 3, wherein the lower molding die is mounted on a conveying device. 5. A filament short fiber aggregate having a three-dimensional curl is fed onto a conveying device onto a net-like object having a shape corresponding to the shape of a mold and being conveyed by the conveying device, and is moved on the conveying device. While letting
A cam mechanism rotates a rotating body made up of a number of needle-like objects that can be moved up and down on a rotating shaft, and the needle-like objects are brought into contact with the filament short fiber aggregate to scrape off a predetermined portion. Preform into shape,
After covering the surface of the preform with another mesh, it is compressed to a predetermined bulk density, and then an adhesive solution is applied to the preform, and the preform coated with the adhesive solution is then A method for manufacturing a cushion material, which comprises heating and drying the material while pulling it together with a net-like material. 6. The method according to claim 1, wherein the rotational peripheral speed of the rotating body is 150 to 2000 m/min. 7 Claims 5 or 6 in which a plurality of rotating bodies each having a large number of needle-like objects are used
The method described in section. 8. The method according to any one of claims 5 to 7, wherein the lower mold for molding is mounted on a conveying device. 9. A conveying device for a filament short fiber aggregate having three-dimensional curls and a net-like material having a shape corresponding to the shape of a mold, and a large number of needle-shaped objects provided on the conveying device and capable of moving up and down on a rotating shaft by a cam mechanism. A device for preforming a cushion material consisting of a rotating body made of upright objects, a device for compressing the preformed filament short fiber aggregate together with a net-like material, a device for applying adhesive liquid to the compression molded product, and a device for drying. A manufacturing device for cushioning material, which is sequentially provided with a device and a device.