JPS6018109A - Molding of cut part of carpet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a breakthrough in the method of pressure forming a cut section of a carpet made of Milo II pile.

General Q Carpella I is used for laying long objects, but it is inconvenient to transport and bring to the installation site, and JJA 4
Due to the drawback that partial replacement is not possible compared to yJ4, recently I have been replacing large carpets with 50 Cn+ in advance.
Cut into pieces of a certain size, such as X 5 Q crr,
Carpet tiles, which are coated with membranes, have come to be used in the form of tiles.

By the way, carpet tiles whose surface is made of pile have a straight cut edge and medium parallelism, but when laying, the abutment part'; 7. The abutting parts appear like the joints that occur when the tiles are scattered and sunk, giving it a luxurious feel that resembles a single sword and a single pet.7. f.

stomach.

,,Figure i51 shows 7f, 1 so II of 1 carpet cut t'l, -16. Original warped carpet A with 1.4j of pile 2 cut on the top surface of base 1. The raw carpet is moved by a conveyor, a chino, or a roller, and heated by a heater or hot air to the desired cutting position of the raw carpet.
,,11 by doing carpet tile x-LJJ
It is something that comes out.

The base 1 of the above Carvera) A is shown in detail;
However, for example, by lining the back of the pile 2 with hot plastic such as coal tar, and embedding the lower part of the loop or cut pile 2 in the coal tar waste, it was fixed. A 41-piece structure in which a base fabric with piles 2 planted thereon is adhesively fixed onto a coal tar layer is adopted.

Further, the rotary cutter 3 has a structure in which a sharp cutting edge is provided on the outer periphery of a disk, and the disk has an appropriate thickness.

Therefore, when the heated part of the base 1 is cut by the rotary knife 3 as shown in Fig. 1, the cut surface of the carpet is compressed on both sides by the biting thickness of the knife 3, and is plastically deformed by the knife. It becomes an inclined surface that matches the side shape of 3.

That is, the disk-shaped blade 3 has a cutting edge around its periphery, and in order to maintain strength, the wall gradually becomes thicker by Q from the edge to the center, and both sides are inclined. The cut surface of carpet A becomes the slope of the lower flooring.

When such cut carpet tiles are laid on the floor, a gap is created where the lower part touches the adjacent tile and the upper part expands.In this gap, the density of the pile becomes coarse and the upper When viewed from above, the voids appear like joints, making it impossible to express the luxurious image of a single piece.

In addition, it is efficient to perform G-I and II-cuts simultaneously with multiple blades when cutting a carpet using rotary blade anastomosis. When cutting with a knife, linear accuracy may vary depending on the assembly accuracy, error, looseness, etc. of the feeding device, %, l<, L
Only the biting blade of the cutlery has a lateral relief in the car head, which is a major cause of bending in the clear section.

This invention was made in order to solve the problems described in item 1 that occurred when cutting carpets. -1- However, there is no gap, +u
The object of the present invention is to provide a method for forming a cut part by which the entire 11-piece part can be laid out in the image of a single piece.

According to the present invention (1), the carpet is cut with a rotary blade by a guide along the moving direction, and the guide plastically deforms the cut surface onto the slope of the upper flooring, so that it can be used when laying carpet tiles. This is to prevent gaps from forming in the abutting portions.

The present invention will be explained below based on the embodiments shown in FIGS. 2 to 5.

Fig. 1 shows the plane of the cutting device 1t, and the carpet A is shaped into a shape K (f) that can cut out a plurality of carpet tiles B. For example, the size is 110 mm on one side.
0 mm square, and car vent tile B is 500 mm square.
It is a square of mlπ, and four pieces are cut out from carpet A.

The car peller) A is sent forward by a conveying device such as a chino, a belt, or a roller, and along the moving direction of the car peller) A, a pair of first blades 11, a second blade 12 in front of this blade 11, and each A heating device 13 such as a heater or hot air that heats the cutting part til of the carpet A and a position immediately before the cutting part til of the blade TI, '12, and the cutting part 1nf of the carpet are guided to the position immediately behind each blade 11 and 12. guide 14
．． 15 are arranged respectively.

The first cutting tool 11 has the same disk shape as shown in FIG. Although not shown in the figure, the blades/objects 11 are arranged at intervals on both sides of the carpet A, so that they are supported by the blade receivers.
It's happening.

The second cutter 12 is provided at a position where it cuts the central part of the carpeno I-A in the direction of movement (1'f), and cuts the carpeno I-A cut by the first cutter 11 to the same extent. f
, i & O are doing this for one minute. This second cutter 12 also has the same structure as the first cutter 11.

Distance 1ii1f of this second cutter 12 from the first cutter 11;
L is set so that there is no biting effect of the first cutter 11, 2.1: the vine position, and tool 1 (S'1ζ)・) here 11" old 1.11: L is the first cutter 11 on both sides. 1/1.'T half of the cutting width of Δ series.

It is above.

That is, when the first blade 11 cuts the carpeller I-A, the carpeller I-A is compressed in the width direction by the thickness of the blade 11, passes through the first blade 11, and cuts an appropriate distance. As it moves, the compressed portion is restored, and the 'FIX after cutting and folding becomes a little wider than the interval between the blades 11.

In this way, before the compressed part recovers, εB
When cutting is performed with two blades 12, the amount of compression in the width direction of the carpet A'4 increases extremely, the escape direction of the carpet becomes uneven, and the cut edge will not be straight after restoration.

Therefore, by selecting the distance between the first cutter 11 and the second cutter 12, the cut edge after restoration can be straightened to 1i3i! You can finish it.

Guides (ruler) on both sides placed immediately after the first cutter 11
14 is arranged so that the cut surface slides in the direction of movement of the carveler A, and has a presser plate 14b on the upper surface.

The opposing width of this guide 14 on both sides is the carvera hA described above.
It becomes wider towards the front to accommodate changes in cutting width.

ff1ll, the opposite width between the rear ends at the position immediately after the first cutter 11 is the narrowest, and from this rear end to the front Q (carveler) A restoration (7H, so as not to miss, the width gradually becomes wider, The two sides of the cutter 12 are widened on both sides by the thickness of the cutter 12 and extend forward.

The guide 15 placed immediately after the second ten thousand objects 12 has a presser plate 15b protruding to both sides on the upper surface, and both sides of the guide 15 have a sliding molding of the curved blade A), and the guide 15 has a pressing plate 15b protruding to both sides on the upper surface. The thickness of the rear end matches the thickness of the knife 12, and it gradually becomes thinner toward the tip.
Jruyo/, I: I'm doing it.

As mentioned above, the first cutter 11 and the second cutter 12 cut 1.
What are the cross-sections of each cut j of curver A to be analyzed?Even in the vertical position of 1t, the guide 14.15ζ24:, 71 concubine, i4
Since the position is determined in the width direction -\, the city 6f[
7.1: It is possible to perform accurate cutting.

Also, the amount of carpet A cut is JJ
The coal tar layer is heated in advance by the I11 heating device 13 to soften the coal tar layer, thereby making it easier to cut. I have a guide 14.15
It is possible to shape the cut surface by.

Therefore, as shown in FIGS. 3 and 4, the surfaces on which the carpet cut surfaces of the guides 14 and 15 slide are tilted,
4a and 15a, so that the cut surface of the carpet A is plastically deformed into an inclined surface where two parts are wide.

The molding method of the present invention has the above-mentioned configuration, and the carpet A is heated while the first and second cutters 11 and 12 are rotated.
The first blade! Send it towards snout 11.

In the Carbera L-A, first, the cutting part made by the first knife 11 is heated by the heating device 13, the unnecessary ears on both sides are cut by this first knife 11, and the carpet between the two knives 11 is immediately cut by the heating device 13. The surface is guided by guides 14.

Next, when Carvera A advances by a distance rat'L, the central part is cut by the second blade 12, and the carpet A becomes two pieces, and both cut surfaces by the second blade, 'jlt) 12, are also cut by the central guide. 15 and will be guided.

The cut surfaces of the carpet A with the first and second blades 11.12 are deformed by the guide 14.15G and the -1 part of the llTi slope.

The shaping of the sloped surface in which the two parts protrude outward is caused by the cross-sectional shape of the lower slope created by cutting with a knife.
By pushing part 1 of the coal tar layer inward (including part 1) and letting the pressed part escape to part L and protruding outward, part 2 is formed into a slope around the time of expansion. By the way,
This type of forming results in plastic 11'1 deformation due to local heating of the coal tar layer before cutting, and thus has a 1jf capability.

The carpet cut in this way is cut as shown in 1-1.
By doing so, the square carpet tile B is pulled out IJJ.

The four edges of the car vent tile B are sloped surfaces with a width of -1771≦, and when this is laid on the floor, as shown in FIG. 5, the - part of the base 1 is /? 1! There is no gap 5d in the two parts in contact and abutment, and the density of the pile 2 becomes uniform throughout.

According to this invention, the heated part of the carpet is cut with the blade "im," the cut surface after cutting is centered in the direction of movement at > f, and the cut surface 4 "- is centered with this guide. By shaping the slope of the 1st and 2nd steps of the evil method, it is possible to make the slope of the lower flooring created by cutting with a knife upside down, and therefore it is possible to make the slope of the carpet tile floor upside down. When laying piles, there will be no voids above the abutting parts, the density of the pile will be uniform throughout, and it will be possible to install the pile in such a way that the abutting parts will not be noticeable.

In addition, by making the pile density uniform in the abutting portion, it is possible to obtain a carpet tile that can be laid and used in the same way as a single piece, making it possible to put the carpet tile to practical use.

Furthermore, since the guide is used to guide the carpet immediately after it is cut, the direct PA#'? It is possible to obtain carpet tiles with a high degree of hardness.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view of a carpet cut 1 complaint book, and Figure 2 is the molding method of this invention? Fig. 3 is a plan view of the device to be implemented, Fig. 3 is a diagram of the group 1 of the guide portions on both sides, Fig. 4 is a longitudinal sectional view of the central guide IS section, and Fig. 5 is a carpet with beams disconnected. FIG. 1 is a plan view of #1iff Iυ showing the state of laying tiles. A... Car head, B. Carpet tile, 11.
...First cutter, 12...Second cutter, I3...Heating device, 14.15...Guide special ir'l' Applicant: Tadami Yoshi Production: J41J people Sickle ill text Knee Figure 2 Figure 1

Claims (1)

[Claims] The heated part of the carpet that has been moved is moved along the direction of movement using a disc-shaped knife. L. A method for forming a cut portion of a carpet, which comprises guiding the cut surface of the carpet in the moving direction with a guide at the position after cutting, and forming the cut surface with this guide into an inclined surface extending upward fjB.