TWI656032B - Glass fiber mat manufacturing method - Google Patents

Abstract

A method for preparing a fiberglass mat comprising the steps of: providing a plurality of cotton layers; and step B: distributing the glass fibers on the cotton layers to form a plurality of glass fiber layers respectively located on the cotton layers, the glass fiber layers Each of the layers cooperates with a respective layer of the layers of cotton to form a mat; and step C: stacks and bonds the mats together. Since the glass fibers are distributed on the cotton layers after being formed into the cotton layers, that is, the glass fibers are added to the process after the process of making the cotton layers, such as loosening and rolling, so that the glass fibers are not easily broken. The cracking dust occurs, so the invention can solve the defects that the glass fiber will diffuse in the working space and harm the health of the worker in the process of manufacturing the glass fiber mat in the past, and the glass fiber mat can contain the glass fiber of complete size. It has better insulation and sound absorption.

Description

Glass fiber mat manufacturing method

The invention relates to a method for manufacturing an insulated sound absorbing pad, in particular to a method for manufacturing a fiberglass mat for a vehicle.

Glass fiber is a material with good thermal and sound absorbing properties, which is suitable for being added to a gasket to make a fiberglass mat with heat insulation and sound absorption. The fiberglass mat can be applied to a vehicle to isolate the engine heat source or absorb the noise generated during driving, and can also be applied to furniture or as a building material. In the process of manufacturing, the raw material cotton is first loosened and then combed, and a plurality of layers of cotton are pressed by a machine roller to be stacked, and then the cotton layer is bonded by needle pinching or hot pressing. Form a liner together. The manufacturing method of the fiberglass mat is roughly the same. The difference is that in the process of loosening, the glass fiber in the form of staple fiber is mixed with the raw cotton, and then combed, rolled, laminated, and finally needled or hot pressed.

Although the glass fiber mat can be manufactured by using the glass fiber mat, when the glass fiber is mixed with the raw material cotton, the raw material cotton needs to be sufficiently loosened and needs to be sufficiently stirred, which causes the glass fiber to fly randomly, and the glass fiber is together with the raw material cotton. When rolling, it will also break up to form dust, which is easily inhaled by the operator, stuck in the lungs or blocked in the pores, which makes the operator feel uncomfortable and endangers the health of the body and needs to be improved.

It is an object of the present invention to provide a method of making a fiberglass mat that overcomes at least one of the disadvantages of the prior art.

The method for preparing the fiberglass mat comprises the steps of: providing a plurality of cotton layers; and step B: distributing the glass fibers on the cotton layers to form a plurality of glass fiber layers respectively located on the cotton layers, the glass fiber layers Each of the layers cooperates with a respective layer of the layers of cotton to form a mat; and step C: stacks and bonds the mats together.

The effect of the method for preparing the fiberglass mat is that the glass fibers are distributed on the cotton layers after being formed into the cotton layers, that is, the glass fibers are made of the cotton layers by loosening and rolling. After the construction method is added to the process, it is not easy to have broken and flying, and thus the shortcomings of the glass fiber mat in the manufacturing method of the glass fiber mat in the working space and the health of the workers are solved.

It is an object of the present invention to provide a method of making a fiberglass mat that overcomes at least one of the disadvantages of the prior art.

The method for preparing the fiberglass mat comprises the steps of: providing a cotton layer; and step B: distributing the glass fiber on the cotton layer to form a glass fiber layer on the cotton layer, the glass fiber layer and the cotton layer Cooperating to form a cushion body; and step C: bending the cushion body into a plurality of folded sections, each of the folded sections having a cotton layer region composed of raw cotton, and a blanket covering the cotton layer region A fiberglass zone and stacking the folded segments together.

The effect of the method for manufacturing the fiberglass mat is that the glass fiber is distributed on the cotton layer after being formed into the cotton layer, that is, the glass fiber is added after the method of making the cotton layer by loosening and rolling. The process, so it is not easy to have broken and flying, and thus solve the shortcomings of the glass fiber mat in the production method of glass fiber in the working space and hurt the health of workers.

Referring to Figures 1 through 3, a first embodiment of the method of making a fiberglass mat of the present invention comprises a cotton layer making step S1, a glass fiber distributing step S2, and a finished product making step S3.

In the cotton layer forming step S1, a raw cotton is provided, and the raw cotton is loosened and combed, and then the raw cotton is rolled to produce a plurality of continuous and extending lengths along a line direction D1. Cotton layer 11.

The raw material cotton, in the first embodiment, is a polypropylene chemical fiber cotton of the type T402-000-6.0-76 purchased from Li Changrong Company, but in other embodiments of the present invention, the raw material cotton It can also be natural cotton, or chemical fiber cotton such as carbon fiber cotton, Kevlar fiber cotton or the like, and is not limited to the polypropylene chemical fiber cotton described in this embodiment.

The above-mentioned action of loosening, carding and rolling the raw cotton to form the cotton layer 11 can be handled by the existing loose cotton machine (opener), carding machine and roller press. Since the construction technique of the machine such as a loose machine, a carding machine, a roller press, and the operation thereof are conventional techniques, the description is omitted here. Furthermore, in other embodiments of the invention, the cotton layers 11 can also be purchased directly from the market for continued use of the glass fiber distribution step S2.

In the glass fiber distribution step S2, the glass fibers are distributed on each layer of the cotton layers 11 by means of a spreader 3, and the glass fibers are attached to the cotton layers 11. A plurality of layers of glass fiber layers 12 respectively located on the cotton layers 11 are formed. Each of the layers of the glass layers 12 cooperates with a respective layer of the layers of the cotton layers 11 to form a mat 13 . In the first embodiment, the glass fibers have an average length of 50 mm. The spreading, in particular, when the cotton layer 11 is moved over a conveyor belt 4, the glass fibers are sprinkled onto the corresponding cotton layer 11 by the spreader 3 containing the glass fibers.

The spreader 3 includes two left and right spaced front and rear extending plates 31, two side plates 32 spaced forward and backward and extending between the left and right plates 31, one disposed in the spreading channel 37 and extending forward and backward. a bristle wheel 33, a soft baffle 34 disposed at one of the bottom ends of the plates 31 and extending longitudinally forward and backward, two embossing wheels 35 located above the bristle wheel 33 and arranged side by side and extending forward and backward, and two Projecting baffles 36 located above the embossing wheels 35 and arranged side by side and extending forward and backward.

The plates 31 cooperate with the side plates 32 to define a top equal width but the bottom portion is tapered downwardly and accommodates the bristle wheel 33, the embossing wheels 35 and the dispensing channels 37 of the slats. Each of the plates 31 has a straight plate portion 311 extending up and down, and a swash plate portion 312 extending obliquely downward from the straight plate portion 311 toward the other machine plate 31. One of the swash plate portions 312 has a longer length and extends closer to the conveyor belt 4. The length of the other of the swash plate portions 312 is shorter. The longer one of the swash plate portions 312 has a sloped section 313 which is equivalent to the slope of the other slanted plate portion 312 but opposite to the oblique direction, and a slope extending downward from the bottom end of the inclined section 313 near the conveyor belt 4 A relatively gentle extension 314. The dispensing channel 37 has a dispensing opening 371 defined by the extension 314 in cooperation with the other sloping plate portion 312. The sprinkler opening 371 faces the lower right side of the drawing and is capable of leaving the glass fibers.

The bristle wheel 33 is adjacent to the sprinkling port 371 and has an axle 331 extending between the swash plate portions 312 and extending forward and backward, and a plurality of bristle sets 332 extending radially from the axle 331. One end of the soft baffle 34 is disposed at a bottom end of the other one of the shorter inclined plate portions 312, and the other end can abut the bristle set 332 of the bristle wheel 33. These embossing wheels 35 are rollers in which a pattern is formed on the surface. Each of the projecting baffles 36 has a triangular shape in cross section and is disposed on the straight plate portion 311 of each of the machine plates 31 and protrudes toward the other protruding baffle 36, and the other protruding baffle 36 The upper portion of the spreading channel 37 is spaced to define a tapered region 372 that tapers from top to bottom toward the embossing wheel 35.

When the spreader 3 is in operation, the glass fibers filled in the discharge channel 37 can be moved along the baffle 36 to the embossing wheels 35, and the embossing wheels 35 can rotate in opposite directions to each other. The glass fibers are sent to the bristle wheel 33. When the glass fiber moves to the bristle wheel 33, it will be attached to the bristle group 332 of the bristle wheel 33, and finally scraped off by the soft baffle 34, and then scattered downward from the sprinkling port 371 to the corresponding The cotton layer 11 is formed to produce a corresponding pad body 13.

In the finished product manufacturing step S3, the mats 13 are stacked in such a manner that the cotton layers 11 overlap the glass fiber layers 12, and the mats 13 are combined in a needle-punching manner into a glass. Fiber mat 14. Since the raw material cotton is a polypropylene chemical fiber cotton, in other embodiments of the present invention, the cotton layers 11 can also be bonded together by heat pressing to form the fiberglass mat 14.

The first embodiment mainly adds glass fiber after the method of making the cotton layer 11 by loosening, carding and rolling, so that the glass fiber is not damaged by loose cotton, carding and rolling, and is not easy to form. The floating and flying dust will not be lifted during the process of loosening and combing, so it can solve the problems caused by the past glass fiber filling in the working space. The advantage of adding the glass fibers before stacking the layers of the cotton layer 11 is that the glass fibers are sealed between the layers of the cotton layers 11 and have the advantage that the glass fibers are not easily scattered. In addition, since the glass fiber is not easily destroyed in the process of being easily manufactured, it is also possible to provide better heat insulation and sound absorbing effects because of good dimensional stability. In the first embodiment, the raw cotton is rolled to produce a plurality of continuous layers of the cotton layer 11 extending longitudinally along the line direction D1, which is advantageous in that the subsequent steps are continuously processed, and continuously Produce finished products.

In summary, the effect of the first embodiment is that after the cotton layers 11 are provided, the glass fibers are distributed on the cotton layers 11 to prevent the glass fibers from being damaged, thereby solving the problem that the glass fibers will be diffused during production. The problem of hurting the health of the worker in the work space, and the resulting fiberglass mat 14 has better heat insulation and sound absorption effects.

Referring to FIG. 4, a second embodiment of the method for fabricating the fiberglass mat of the present invention is similar to the first embodiment, except that the second embodiment is also stacked in the mat 13 in the finished product manufacturing step S3. Then, a layer of non-woven fabric 15 is further applied on the glass fiber layer 12 of the uppermost layer of the pad body 13, so that the uppermost layer of the fiberglass layer 12 is not exposed, and the pad body is pinned. 13 and the nonwoven fabric 15 are combined to form a fiberglass mat 14.

Referring to FIG. 5, a third embodiment of the method for fabricating the fiberglass mat of the present invention is similar to the first embodiment, except that the third embodiment is in the finished product manufacturing step S3, and the uppermost layer of the mat is 13 and the second layer of the pad body 13 are stacked on each other in the direction of the glass fiber layer 12, so that all the glass fiber layers 12 are not exposed, and then the pad bodies 13 are bonded together by means of pinning. Fiberglass mat 14.

Referring to FIG. 6 and FIG. 7, a fourth embodiment of the method for manufacturing a fiberglass mat of the present invention is similar to the first embodiment, except that in the cotton layer forming step S1, the layer is fabricated or provided. In the glass fiber distribution step S2, the glass fiber is sprinkled on the cotton layer 11 by the spreader 3 to form a layer of the glass fiber layer 12 on the cotton layer 11. The glass fiber layer 12 cooperates with the cotton layer 11 to form a cushion body 13. In the finished product manufacturing step S3, the pad body 13 is first bent into a plurality of folded sections 131. Each segment of the folded segments 131 has a batt region 132 of raw material cotton and a fiberglass region 133 overlying the batt region 132. Then, the folded segments 131 are stacked one on another in such a manner that the glass fiber regions 133 face each other, and the folded segments 131 are joined into the fiberglass mat 14 by means of pinning.

Since the fourth embodiment is the same as that after the cotton layer 11 is formed, the glass fiber is distributed on the cotton layer 11, so that the glass fiber can be prevented from being destroyed, and the glass fiber will be permeated in the working space to damage the operator during production. Health problems, and can make the fiberglass mat 14 with better insulation and sound absorption

The above is only the embodiment of the present invention, and the scope of the present invention is not limited thereto. The simple equivalent changes and modifications made by the content of the patent application and the contents of the patent specification of the present invention are still the patents of the present invention. Covered by the scope.

11‧‧‧ cotton layer

12‧‧‧glass layer

13‧‧‧The body

131‧‧‧Folding section

132‧‧‧cotton area

133‧‧‧glass area

14‧‧‧glass mat

15‧‧‧Non-woven fabric

3‧‧‧Sander

31‧‧‧ board

311‧‧‧ Straight Department

312‧‧‧ sloping plate

313‧‧‧Sloping section

314‧‧‧Extension

32‧‧‧ side panels

33‧‧‧Brush wheel

331‧‧‧Axle

332‧‧‧Brush group

34‧‧‧Soft baffle

35‧‧‧ embossing wheel

36‧‧‧Bumper

37‧‧‧Saving channel

371‧‧‧ sprinkle

372‧‧‧ tapered area

4‧‧‧Transportation belt

D1‧‧‧Product line direction

S1‧‧‧ cotton layer making steps

S2‧‧‧glass fiber distribution steps

S3‧‧‧ Finished product production steps

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: Figure 1 is a flow chart illustrating a first embodiment of the method of making a fiberglass mat of the present invention; It is to be noted that the first embodiment uses a spreader to spread glass fibers on several cotton layers, and the glass fiber is schematically distributed on one of the cotton layers as a representative; FIG. 3 is a side view illustrating the first The plurality of mats prepared in the examples are continuously output and stacked together to form a fiberglass mat; FIG. 4 is a side view showing a second embodiment of the method for fabricating the fiberglass mat of the present invention. Fig. 5 is a side view showing a glass fiber mat produced by a third embodiment of the method for producing a fiberglass mat of the present invention; Fig. 6 is a side view showing a method for fabricating the fiberglass mat of the present invention; In the fourth embodiment, a pad body is bent into a plurality of folded sections; and Fig. 7 is a side view showing a fiberglass mat obtained by stacking a plurality of folded sections in the fourth embodiment.

Claims (8)

A method for preparing a fiberglass mat comprising: step A: providing a plurality of cotton layers; and step B: distributing glass fibers on the cotton layers to form a plurality of glass fiber layers respectively located on the cotton layers, the glass fibers Each layer of the layer cooperates with a respective layer of the cotton layers to form a cushion body; and step C: stacking and combining the cushion bodies; wherein, in the step B, a spreader is used The glass fibers are distributed on the cotton layers in a manner of spreading, and the glass layers are respectively formed on the cotton layers. The spreader comprises two pieces of machine plates spaced apart from each other and extending forward and backward, two front and rear And spaced apart from each other, and a side plate extending between the plates, and a bristle wheel disposed in the spreading channel and extending forward and backward, the plates cooperate with the side plates to define a bottom portion to be tapered downwardly for The glass fiber absorbing channel is provided, and the brush wheel can be attached to the glass fiber to operate and transport the glass fiber. The method for preparing a fiberglass mat according to claim 1, wherein in the step A, the raw cotton is made into the cotton layer, and the raw cotton is made of natural cotton or composed of chemical fibers. In the chemical fiber cotton, in the step C, the mats are bonded together by pinning or hot pressing. The method of fabricating a fiberglass mat according to claim 1, wherein each of the plates has a straight plate portion extending up and down, and a swash plate portion extending obliquely downward from the straight plate portion toward the other plate portion. The sloping plate portion, the straight plate portions and the side plates cooperate to define the scatter channel, the hopper channel has a spout for the glass fiber to leave, and the spreader further includes an end. The soft baffle is placed on the bottom end of one of the swash plate portions and the other end abuts against the bristle wheel to scrape off the glass fibers on the bristle wheel to fall out of the sprinkling opening and extend forward and backward. The method of fabricating a fiberglass mat according to claim 3, wherein the spreader further comprises two embossing wheels disposed above the bristle wheel and arranged side by side in the spreading channel, and two are respectively disposed on the a baffle that is located above the embossing wheel and protrudes from the other baffle, and cooperates with the other baffle to separate the spreading channel from top to bottom A tapered area that tapers toward the embossing wheels. A method for preparing a fiberglass mat comprising: step A: providing a cotton layer; and step B: distributing glass fibers on the cotton layer to form a layer of glass fiber on the cotton layer, the glass layer and the cotton layer Cooperating to form a cushion body; and step C: bending the cushion body into a plurality of folded sections, each of the folded sections having a cotton layer region composed of raw cotton, and a layer covering the cotton layer region a fiberglass region, and stacking and combining the folded segments; wherein, in the step B, the glass fibers are distributed on the cotton layer by a spreader, and formed at the same The fiberglass layer on the cotton layer, the spreader comprises two left and right spaced front and rear extending plates, two side plates spaced forward and backward and extending left and right between the plates, and one disposed on the spreading channel a brushing wheel extending in the front and rear, the plates cooperate with the side plates to define a spreading channel that tapers downwardly at the bottom, The brush wheel can be used to attach the fiberglass card to transport the glass fiber. The method for preparing a fiberglass mat according to claim 5, wherein in the step A, the raw cotton is made into the cotton layer, and the raw cotton is natural cotton composed of natural fibers or composed of chemical fibers. In the chemical fiber cotton, in the step C, the folded sections are joined together by pinning or hot pressing. The method of fabricating a fiberglass mat according to claim 5, wherein each of the plates has a straight plate portion extending up and down, and a swash plate portion extending obliquely downward from the straight plate portion toward the other plate portion. The sloping plate portion, the straight plate portions and the side plates cooperate to define the scatter channel, the hopper channel has a spout for the glass fiber to leave, and the spreader further includes an end disposed therein The bottom end of one swash plate portion and the other end abuts the bristle wheel to scrape off the glass fiber on the bristle wheel to fall out of the sprinkling opening and extend the front and rear soft baffles. The method of fabricating a fiberglass mat according to claim 7, wherein the spreader further comprises two embossing wheels disposed above the bristle wheel and arranged side by side in the spreading channel, and two of the embossing wheels are respectively disposed on the a baffle that is located above the embossing wheel and protrudes from the other baffle, and cooperates with the other baffle to separate the spreading channel from top to bottom A tapered area that tapers toward the embossing wheels.