JPH02465B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a method for patterning tufted carpet.

[Conventional technology]

In recent years, as tufted carpets have become more luxurious, products with complex patterns have come to be preferred.In addition to combining cut pile and loop pile, tufted carpets have been created with two levels of high pile height and low pile height. Some products are produced, such as those with three tiers of high pile, medium pile, and low pile, or those woven with various combinations of these.

As a patterning method for such a tufted carpet machine, Japanese Patent Laid-Open Publication No. 162854/1985 discloses that an electric device is made to read a predetermined pattern, and in accordance with the read pattern, a high-speed operation instruction electric signal, The amount of pile yarn fed from the feed roller to each needle is selectively changed in three stages: large amount, medium amount, and small amount for each stitch cycle by emitting a medium speed operation instruction electric signal and a low speed operation instruction electric signal. What is disclosed is that it is made to do so. Then, an air cylinder is operated by a solenoid valve that is selectively opened and closed by a high-speed operation instruction electric signal, and a knife driven by the air cylinder selectively cuts the loop pile to form a high-cut pile. It's summery. That is, according to the method disclosed in the above-mentioned publication, a tufted carpet is obtained by weaving a combination of four types of piles: high loop pile, high cut pile, medium loop pile, and low loop pile.

[Problem that the invention seeks to solve]

In the conventional tufted carpet patterning method as described above, the air cylinder is selectively activated only when a high-speed operation instruction signal is issued.
Therefore, there was a problem in that selection between cut pile and loop pile could only be made for high piles in which a large amount of pile yarn was fed.

[Means for Solving the Problems] This invention, which was made to solve the above-mentioned problems, involves planting pile yarns supplied from a number of feed rolls onto a base fabric using a number of pairs of needles and loopers. In a method for patterning a tufted carpet in which a loop pile is formed by cutting a part of the loop pile with a knife and a cut pile is formed by cutting a part of the loop pile with a knife, a desired tufted carpet pattern stored in a storage device is High pile, medium pile, and low pile can be achieved by selectively controlling the feed rate from each feed roll to high, medium, or low for each stitch cycle of the tufted carpet machine according to the pattern data. The present invention is characterized in that any of these high piles, medium piles, and low piles can be selectively formed into loop piles or cut piles by selectively operating the cut pile forming means. .

〔Example〕

Hereinafter, an embodiment of the method for patterning a tufted carpet according to the present invention will be described with reference to the drawings. In this embodiment, the pile forming mechanism 1 disclosed in Japanese Utility Model Publication No. 59-31752 as shown in FIG. 1 is used. To briefly explain this, a looper 4 and a leaf spring 5 are attached to the upper end of the rocker arm 3 supported by the shaft 2, and the looper 4 and the leaf spring 5 are attached by a crank 6.
swings back and forth. Many feed rolls 7
₁ , 7 ₂ , ... through the guide 8 to a large number of needles 9, the pile yarn 10 is fed to the base fabric B which is intermittently fed out from the base fabric feeding spike roll 11 by the vertical movement of the needles 9. It gets implanted.
The trap made by looper 4 is air cylinder 12
The items that are hung on the looper 4 are cut off at the tip by a knife 13 that moves up and down to form a cut pile, and the items that are removed from the looper 4 forms a loop pile. The looper 4, leaf spring 5, and knife 13 constitute a cut pile forming mechanism. In this way, a tufted carpet with a desired pattern, which is a mixture of cut pile and loop pile, is woven as a whole. Note that the operation of the air cylinder 12 is controlled by opening and closing a solenoid valve 15 connected to a compressed air source 14.

In this invention, the above pile forming mechanism 1
is controlled by the control device 17 according to the data of the desired pattern stored in the storage device 16. That is, the control device 17 controls each feed roll 7 ₁ , 7 ₂ , . . . for each stitch cycle according to the tufted carpet pattern data stored in the storage device 16.
By selectively controlling the feed rate of pile yarn 10 to high, medium, or low, high pile, medium pile, and low pile are formed.
By selectively operating the air cylinder 12 by opening and closing 5, the cut pile forming mechanism consisting of the looper 4, leaf spring 5 and knife 13 is made to selectively cut each high pile, medium pile and low pile.

In this way, according to the present invention, any of the high pile, medium pile, and low pile can be made into loop pile or cut pile, and the tufted carpet pattern data stored in the storage device 16 According to, for example, the second
As shown in Figures 3 and 4, high cut pile HC, high loop pile HL, medium cut pile MC, medium loop pile ML, and low loop pile.
A tufted carpet is obtained in which LL and low cut pile LC (not shown) are optionally mixed.

〔Effect of the invention〕

According to this invention, any of the high pile, medium pile, and low pile can be made into loop pile or cut pile according to the desired pattern data stored in the storage device, so that the variety of tufted carpets and The degree of freedom in design is significantly improved.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of an embodiment of a tufted carpet machine used in the patterning method of a tufted carpet machine according to the present invention, FIGS. 2, 3, and 4.
Each figure is a schematic sectional view schematically showing the structure of a tufted carpet woven according to the above embodiments. 4... Looper, 5... Leaf spring, 7 ₁ , 7 ₂ , 7
_{3,7 4} ...Feed roll, 9...Needle, 1
0...Pile yarn, 13...Knife, 16...Storage device, 17...Control device, B...Base fabric, HC...
High cut pile, HL...High loop pile, MC
...Medium cut pile, ML...Medium loop pile,
LL...Low loop pile.

Claims (1)

[Claims] 1 Pile yarns supplied by a large number of feed rolls are implanted into the base fabric using a large number of sets of needles and loopers to form loops, and some of the loop piles are cut with a knife to form cut piles. In the tufted carpet patterning method, the amount of yarn fed from each feed roll is increased for each stitch cycle of the tufted carpet machine according to the desired tufted carpet pattern data stored in the storage device. , medium, and low to form high piles, medium piles, and low piles, and selectively operating the cut pile forming means to form these high piles, medium piles, and low piles. A method for patterning a tufted carpet, characterized in that any of the above can be selectively made into a loop pile or a cut pile.