JPH0551857A - Tufting machine - Google Patents

Abstract

PURPOSE:To extract a solid pattern rich in variety by planting piles after a given pattern on ground fabric in cooperation of a needle drive mechanism and a looper drive mechanism laid on mobile members synchronously running an upper and a lower rails, respectively. CONSTITUTION:A needle drive mechanism 12 and a looper drive mechanism 32 are laid on mobile members 14 and 34 synchronously running on rails 13 and 33 set vertically in parallel in such a way that both the drive mechanisms are rotatable around vertical reciprocation of a needle 15 of the needle drive mechanism 12 and the needle 15 can cooperate with a looper 35. The mobile member 34 is equipped with a knife drive mechanism 51 and the looper 35 can operate with knife 52 to constitute a tufting machine. In tufting, screw shafts 16 and 36 are synchronously rotated through a mobile member drive motor 34, the needle 15 and the looper 35 vertically opposing are moved in an integrated way to a given position of ground fabric 64 and piles are planted through a computer after a given pattern.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention changes the stitching direction according to the contour of a pattern to be drawn on the pile surface of a pile cloth used for carpets, mats, etc. The present invention relates to a flocking device for forming hair.

[0002]

2. Description of the Related Art A tufted machine and a hook machine are commonly used as a flocking device for forming piles by pushing pile yarns into a base cloth.

In the tufted machine, piles covering the entire width of the base fabric are simultaneously planted, and the needles to be planted are planted on the needle bar having the same length as the width of the base fabric, but the over tufts. In other words, if you want to create a striped pattern by stacking a new pile on a base cloth with piles piled on the entire surface, use a needle bar that has several needles set as a set and scattered. In the case of over tufting the zigzag pattern, tufting is performed while moving the needle bar in which the needles are scatteredly planted in the width direction (left and right) of the base cloth. However, in a tufted machine, many piles over the entire width of the base cloth are planted at the same time, so it is not possible to depict a variety of patterns on the pile surface like Akisminster carpet.

In this respect, since the hook machine is one in which piles are planted one by one, the stitch direction can be freely changed each time the pile is planted, and various patterns can be drawn on the pile surface. Can be done. However, the commonly used hook machine is
As disclosed in Japanese Examined Patent Publication No. 1-5679 (Japanese Patent Laid-Open No. 63-159568), it is a manual one that is used by holding it in one hand like a gun and driving a pile into the base cloth. Is much lower than tufted aircraft.
In Japanese Examined Patent Publication No. 1-33585 (Japanese Patent Laid-Open No. 62-33860) and Japanese Examined Patent Publication No. 2-27468 (Japanese Laid-Open Patent Publication No. 63-315660), attempts are made to automate the operation of the hook machine to improve the use efficiency.

[0005]

In a tufted machine, when a plurality of needles 15 are grouped into a set and needle bars 71, which are planted in a scattered manner, are swung left and right to overtuff a zigzag pattern, the zigzag pattern continues in a band shape. The width V at the portion 72 inclined to the left and right of the pile row is narrower than the width W at the portion 73 where the pile row is not inclined and is straight in the length direction of the base fabric 64 by the amount of inclination of the pile row, It is not possible to make the widths (V · W) of the inclined portion 72 and the linear portion 73 of the pile row the same (FIG. 6).

In the hook machine, the Japanese Patent Publication No. 1-56 is used.
As described in 79, in order to implant one pile, along with needles and scissors called push rods or beak needles, pipes covering them must also be inserted into the base cloth, Each time one pile is planted, a large insertion hole is formed in the base cloth as an insertion mark for those piles, which reduces the tear strength of the base cloth. Therefore, a thick cloth with strong tear strength must be used for the base cloth on which the pile machine is to be planted by the hook machine, and the stitch interval must be made coarse, and in order to prevent it from coming out from the insertion hole. Since a thick pile thread must be used, the thin pile is flexibly and inexpensively inserted, and the thin pile is closely inserted to draw a delicate pattern with a fine pile density on the pile surface. I can't do that.

Further, unlike the tufted machine, the hook machine only pushes the pile yarn loop from one side of the base fabric and has no alternative to the looper of the tufted machine that receives the pile yarn loop on the opposite side to which it is extruded. For this reason, depending on the hook machine, Japanese Patent Publication No. 57-304
16 (JP-A-54-104961), JP-B-61-35
303 (JP-A-58-144162), JP-B-62-2
1898 (Japanese Patent Laid-Open No. 61-19856) and the like, it is not possible to selectively form the loop pile and the cut pile for each stitch cycle.
9-16426, Japanese Patent Publication No. 3-4666 (Japanese Patent Laid-Open No. 59-1
79862), Japanese Laid-Open Patent Application No. 2-112462, etc., it is not possible to selectively change the pile length for each stitch cycle, and also Japanese Patent Publication No. 57-436.
62 (JP-A-56-9464), JP-A-60-3946
As disclosed in No. 6 and the like, the pile yarn cannot be selectively changed to a different color for each stitch cycle. Therefore, it is practically impossible for a hook machine to draw a pattern, such as a loop and a cut, which is rich in changes in pile shape and pile length on the pile surface.

[0008]

A tufted machine according to the present invention solves the problems of the hook machine automatic operation device disclosed in Japanese Patent Publication No. 1-5679, Japanese Patent Publication No. 27468/1990, and the inclined portion of the pile row. The zigzag pattern having the same width (V / W) as 72 and the linear portion 73 can be overtuffed, and the needle drive motor 11
And a looper drive mechanism 32 including a looper drive motor 31 traveling on different rails 13 and 33 arranged in parallel.
The needle 15 driven by the needle drive mechanism 12 and the looper 35 driven by the looper drive mechanism 12 are arranged so that they can be cooperated with each other.

In order to make the tufted machine capable of freely changing the stitch direction, as in the hook machine automatic operating device disclosed in Japanese Patent Publication No. 1-5679 and Japanese Patent Publication No. 27468/1990, (1 ) The needle drive mechanism 12 and the looper drive mechanism 32 are respectively attached to the moving bodies 13 and 34,
A movable body driving means (16, 17, 18, 36) rotatably mounted about a straight line 63 parallel to the reciprocating direction of the needle, and (2) driving the movable bodies 14 and 34 in synchronization.
37, 38) and the needle drive mechanism 12 and the looper drive mechanism 32 in synchronization with each other to rotate and drive about a straight line 63 parallel to the direction in which the needle reciprocates.
9 and 39 are provided, and (3) the rails 13 and 33 are supported by a moving body 62 that travels on another rail 61 arranged in a direction different from those rails 13 and 33, and (4) the needle drive mechanism 12 and The looper drive mechanism 32 is rotatably mounted on the moving bodies 13 and 34 about a straight line 63 parallel to the reciprocating direction of the needle, and (5) the moving bodies 14 and 34 are driven in synchronization. Moving body driving means (1
6 ・ 17 ・ 18 ・ 36 ・ 37 ・ 38), and the rotational drive means 19 for synchronizing the needle drive mechanism 12 and the looper drive mechanism 32 to rotate about a straight line 63 parallel to the direction in which the needle reciprocates. 39 may be provided. When the cut pile is planted, the looper drive mechanism 12
The knife drive mechanism 51 is mounted on the moving body 14 on which
The looper 35 driven by the looper drive mechanism 12 and the knife 52 driven by the knife drive mechanism 51 are adjusted so as to cooperate with each other.

Here, "the needle and the looper are adjusted so that they can cooperate with each other" means that a space in which the base cloth 64 can be set is provided between the needle driving device 12 and the looper driving device 32, and the space is provided in that space. The needle drive mechanism 12 is formed so that the needle 15 can be inserted into the set base cloth 64, and the looper 35 is crossed over the inserted needle 15 so that the pile thread loop held by the needle 15 can be hooked. This means that the mechanism 32 is configured. Further, “adjusting the looper 35 and the knife 52 so that they can cooperate with each other” means that the knife 52 is driven toward the looper 35 that locks the pile yarn loop,
It means that the looper 35 and the knife 52 are adjusted so as to mesh with each other to cut the pile yarn loop.

In the conventional tufted machine, the needle and the looper and the looper and the knife are adjusted so as to cooperate with each other, but the driving parts of the needle, looper and knife drive mechanisms are Put together in one
It is driven by the same single drive motor, and in this respect, it differs from the tufted machine of the present invention in which the needle drive mechanism 12 and the looper drive mechanism 32 are driven by separate motors 11 and 31.

Therefore, in the tufted machine according to the present invention, the conventional tufted machine is divided into a needle drive mechanism and a looper drive mechanism and separated, and two rails are provided in parallel so that the rails can run on them and the separated. It can also be said that a driving motor is separately attached to each of the needle drive mechanism and the looper drive mechanism.

Therefore, the conventional tufted machine can be applied to the needle drive mechanism 12 and the looper drive mechanism 32 constituting the present invention, and the needle 15 and the looper 35 can cooperate with each other by the conventional technique. Adjusted.

Further, the needle drive mechanism 1 constituting the present invention
2. Looper drive mechanism 32 and knife drive mechanism 5
1 includes the above Japanese Patent Publication 57-30416 and Japanese Patent Publication 61-3.
5303, Japanese Patent Publication No. 62-21898, etc., the loop / cut selection mechanism, Japanese Patent Publication No. 39-16426, Japanese Patent Publication No. 3-4666, Japanese Patent Application Laid-Open No. 2-112462, etc., or a pile length changing mechanism. Kosho 57-43
It is also possible to apply the pile yarn selection mechanism disclosed in Japanese Laid-Open Patent Application No. 662 or JP-A-60-39466.

Further, a needle shift mechanism disclosed in Japanese Patent Publication No. 54-43939 and the like, Japanese Patent Laid-Open No. 50-1188.
60 and Japanese Patent Sho 55-23944, Japanese Patent Sho 57-890
7. The pile yarn supply mechanism disclosed in JP-B-57-30415 and the like can also be applied to the present invention.

[0016]

FIG. 13A-1 shows an embodiment of the present invention.
3B is a rail arranged in parallel, and 14 is a moving body running on it. A guide 26 having a dovetail groove 27 fitted to the rail 13 is mounted on the bottom surface of the moving body 14.

A slider crank mechanism is adopted for the needle drive mechanism 12, and a crank 21 driven by the motor 11 via a belt 20 and a connecting rod 22 are provided.
The slide shaft 23 and the frame 2 that is a fixed link
4 and 4. The slide shaft 23 is included in the rotary drive means 19 for rotationally driving the needle drive mechanism 12 about a straight line 63 parallel to the direction in which the needle reciprocates.
A megatorque motor (NSK Seiko Co., Ltd. direct drive
Motor system) is applied, this torque motor 1
The entire needle drive mechanism 12 including the frame 24 is rotatably driven on the movable body 14 about the shaft center 63 of the slide shaft 23 by means of 9. Reference numeral 28 is a base fabric retainer protruding from the frame 24.

At the lower end of the slide shaft 23, a needle block 25 having a plurality of needles 15 mounted thereon is mounted.

The moving body driving means for driving the moving body 14 to travel along the rail 13 includes a screw bearing 17 mounted on the bottom surface of the moving body 14 and a screw arranged in parallel with the rail 13 and fitted into the screw bearing 17. It is composed of a shaft 16 and a motor 18 that rotates the screw shaft 16.

Numerals 33A and 33B are rails arranged in parallel with the rail 13, and numeral 34 is a moving body which runs on the rails. A guide 49 having a dovetail groove 50 fitted to the rail 33 is mounted on the upper surface of the moving body 34.
The frame 44 on which the looper drive mechanism is formed is continuous from the upper side to the lower side of the moving body 34.

The looper drive mechanism is a mechanism 32A formed in a portion of the frame 44 protruding below the moving body 34.
And a mechanism 32B formed in a portion of the frame 44 protruding above the moving body 34.

The lower looper drive mechanism 32A includes:
The slider crank mechanism is adopted and the belt 40
It is composed of a crank 41 driven by a motor 31 via a connecting rod 42, a slide shaft 43, and a frame 44 which is a fixed link.

A double lever crank mechanism is adopted for the upper looper drive mechanism 32B. The frame 44 serves as a fixed link, and a pair of lever cranks 45 and 46 and a connecting rod for connecting the lever cranks 45 and 46. A looper block 48 having a plurality of loopers 35 mounted thereon is supported by the connecting rod 47. The shafts 53 and 54 that pivotally support the lever cranks 45 and 46 are rotatably supported by the frame 44.
-It is designed to swing together with 46.

From the shaft 53, the locking arm 69
And the slide shaft 43 of the lower looper drive mechanism 32A and the locking arm 69 are connected to each other.
Chained by 0. Thus, when the motor 31 rotates and the slide shaft 43 is driven up and down, the lever crank 45 and the locking arm 69 are integrated.
46 swings and rotates, and the looper 35 supported by the connecting rod 47
Will move back and forth.

A megatorque motor having a hollow at the center is applied to the rotary drive means 39 for rotationally driving the looper drive mechanism 32 about a straight line 63 parallel to the reciprocating motion of the needle. The entire looper drive mechanism 32 including the frame 44 is rotationally driven on the moving body 34 by 39.

That is, the frame 44 and the slide shaft 4
3 penetrates the cavity and is continuous in the vertical direction. The slider crank mechanism 32A is at the upper part, and the double lever crank mechanism 32 is at the upper part.
B is formed in the lower part, and the frame 44 is the torque motor 3
The movable body 34 is rotatably supported by the movable body 34 and is driven to rotate.

The moving body driving means for driving the moving body 34 to travel along the rails 33 is, as in the case of the looper driving mechanism 12, parallel to the screw bearings 37 mounted on the moving body 34 and the rails 33. A screw shaft 36 arranged and fitted to the screw bearing 37,
The motor 38 rotates the screw shaft 36.

Another shaft 55, which is arranged in parallel with the shafts 53 and 54, is rotatably supported on the upper frame 44 on which the double lever crank mechanism 32B is formed.
A knife drive mechanism 51 is formed, which is a crank mechanism composed of an arm 56 protruding from the lever crank 45, an arm 57 protruding from the shaft 55, and a connecting rod 58 connecting the arms 56 and 57.

A knife block 59, on which a plurality of knives 52 are mounted, is mounted on the shaft 55. When the arm 56 is oscillated by the looper drive mechanism 32A, the shaft 55 oscillates and rotates. The knife 52 swings up and down and meshes with the looper 35. 30A
30B is a guide bar that supports the base cloth 64, and is supported by the frame 44.

Both ends of the rails 13 and 33 are movable bodies 62 which run on another pair of parallel rails 61A and 62B arranged in the direction perpendicular to the rails 13 and 33.
The rails 13 and 33 and the moving bodies 62A and 62B, which are joined to the A and 62B, carry the needle driving mechanism 12, the looper driving mechanism 32, and the knife driving mechanism 51 and travel on the rails 61A and 62B. It forms the frame of the body 62.

Both ends of the screw shafts 16 and 36 are
It is rotatably supported by the moving bodies 62A and 62B, and the motors 18 and 38 are attached to one of the moving bodies 62A. Reference numeral 65 is a pillar that supports the rails 61A and 61B, and is provided so as to project from the floor surface 66. 67 is a rail 61
It is a protective fence provided along A ・ 61B. Rail 6
In the space sandwiched between the upper and lower rails 13 and 33 carried by the moving bodies 62A and 62B traveling on the 1A and 61B, a base fabric tensioning frame 68 is arranged.

[0032]

EFFECTS OF THE INVENTION (1) The tufted machine according to the present invention is configured as described above. The moving body 62 is driven on the rail 61 by a motor (not shown), and the upper and lower motors 18 38 synchronously rotates the screw shafts 16 and 36, whereby the upper and lower moving bodies 14 and 34 synchronously travel on the rails 13 and 33,
The needle 15 and the looper 35, which are carried by the moving bodies 14 and 34 and face each other vertically, move integrally in the required direction of the base cloth 64. At that time, when the upper and lower torque motors 19 and 39 are synchronously rotated so that the direction of the looper 35 is adjusted to the moving direction and the upper and lower motors 18 and 38 are synchronously rotated, the numbers of the needles 15 and the loopers 55 are changed. A plurality of piles will be continuously planted in the required direction of the base fabric 64.

Then, those motors (18.19.
38 ・ 39), when it is rotationally driven according to the curve of the pattern through the computer circuit,
As in the case of the hook machine automatic operation device disclosed in 585 or Japanese Patent Publication No. 2-27468, the pile is partially planted according to the required pattern, and the pattern cannot be drawn by the conventional tufted machine. Can be reproduced on the pile surface.

(2) A plurality of sets of moving bodies 14 and 34 are installed on the rails 13 and 33, and the moving bodies 14 and 34 above and below them are installed.
While continuously supplying the base cloth between them, the moving bodies 14 and 34 are swung left and right along the rails 13 and 33, and the directions of the needle block 25 and the looper block 48 are moved by the torque motors 19 and 39. It is also possible to draw a zigzag pattern in which the width V of the inclined portion 72 of the pile row and the width W of the linear portion 73 are the same by overtafting in accordance with the moving direction of 34 and the moving direction of the base cloth 64. .. This is because the needle block 25 and the looper block 4 can be used at both the inclined portion 72 and the straight portion 73 of the pile row.
8 is oriented in the direction orthogonal to the pile row, and the width V of the inclined portion 72 and the width W of the linear portion 73 are set by the width L of the needle block 25 and the looper block 48.

(3) In the present invention, only one needle is inserted into the base cloth 64 to implant one pile, and scissors and pipes are not inserted as in the case of the hook machine. There is no large insertion hole in the base cloth, and the strength decrease of the base cloth caused by burying the pile is slight, so it is possible to use a thin base cloth and to reduce the stitch interval. You can make it fine,
Further, even if a thin pile is planted, it does not come off and is firmly locked to the base fabric. In particular, it is possible to insert a plurality of needles carried by the needle block 25 and simultaneously plant a plurality of piles. Since it is possible, the stitch intervals are evenly arranged, which makes it possible to obtain a dense pile cloth having a finely arranged pile density.

(4) In the tufted machine according to the present invention, unlike the hook machine, the looper receives the pile yarn loop formed by the needle inserted into the base cloth, so that the loop / cut selection mechanism is the same as the conventional tufted machine. A pile length changing mechanism, a pile yarn selecting mechanism, a pile yarn supplying mechanism, etc. can be applied, thereby changing the pile shape of the loop and the cut and the pile length to three-dimensionally draw a variety of patterns. In particular, a plurality of piles inserted by inserting a plurality of needles carried by the needle block 25 and implanted in a strip shape are formed in order from the pile on the end side of the width of the strip shape and the pile shape or the piles. The length and color (type of pile thread) are changed, or it is selected whether or not to insert each needle into the base cloth for each stitch. Change the width of the pattern to be drawn in the shape of a circle, or, alternatively, the handwriting (blurred brush) that blurs the striped curved pattern.
It is also possible to do like this.

[Brief description of drawings]

FIG. 1 is a plan view of a tufted machine according to the present invention.

FIG. 2 is a front view of the tufted machine according to the present invention shown in FIG.

FIG. 3 is a side view of essential parts showing a needle drive mechanism, a looper drive mechanism and a knife drive mechanism of the tufted machine according to the present invention shown in FIG.

FIG. 4 is an enlarged side view of essential parts showing a looper drive mechanism and a knife drive mechanism of the tufted machine according to the present invention shown in FIG.

FIG. 5 is a plan view of a back stitch surface of a pile fabric in which a zigzag pattern is overtuffed by the tufted machine according to the present invention.

FIG. 6 is a plan view of a back stitch surface of a pile fabric in which a zigzag pattern is over-tufted by a conventional tufted machine.

[Explanation of symbols]

 11 Needle Drive Motor 12 Needle Drive Mechanism 13 Rail 14 Moving Body 15 Needle 16 Screw Shaft 17 Screw Bearing 18 Motor 19 Torque Motor 20 Belt 21 Crank 22 Connecting Rod 23 Slide Shaft 24 Frame 25 Needle Block 26 Guide 27 Dovetail 28 Base Fabric Presser 30 guide bar 31 looper drive motor 32 looper drive mechanism 33 rail 34 moving body 35 looper 36 screw shaft 37 screw bearing 38 motor 39 torque motor 40 belt 41 crank 42 link rod 43 slide shaft 44 freech 45 lever crank 46 lever lever crank 47 link rod 48 Looper Block 49 Guide 50 Dovetail 51 Knife Drive Mechanism 52 Knife 53 Series Ft 54 shaft 55 shaft 56 arm 57 arm 58 connecting rod 59 knife block 61 rail 62 moving body 63 straight line (axial core) 64 base cloth 65 strut 66 floor 67 protective fence 68 base cloth tension frame 69 rocking arm 70 connecting rod 71 Needle bar 72 Inclined part 73 Straight part

Claims (7)

[Claims] 1. A needle drive mechanism 12 including a needle drive motor 11 and a looper drive mechanism 32 including a looper drive motor 31 are mounted on movable bodies 14 and 34 traveling on different rails 13 and 33 arranged in parallel, respectively. A tufted machine, wherein the needle 15 driven by the needle drive mechanism 12 and the looper 35 driven by the looper drive mechanism 12 are adjusted so as to cooperate with each other. 2. The needle drive mechanism 12 and the looper drive mechanism 32 according to claim 1 are arranged on the moving bodies 13 and 34, respectively, in a straight line 6 parallel to the direction in which the needle reciprocates.
3. The tufted machine according to claim 1, wherein the tufted machine is rotatably mounted around 3. 3. The moving bodies 14 and 34 according to claim 2 above.
Moving body driving means (16 ・ 17 ・ 1) for driving
8.36.37.38) and rotation drive means 19 and 39 for rotating the needle drive mechanism 12 and the looper drive mechanism 32 around a straight line 63 parallel to the direction in which the needle reciprocates. The tufted machine according to claim 2, wherein the tufted machine is a tufted machine. 4. The rails 13 and 33 according to claim 1 above.
Is supported by a moving body 62 that travels on another rail 61 arranged in a direction different from those rails 13 and 33. The tufted machine according to claim 1, wherein 5. The needle drive mechanism 12 and the looper drive mechanism 32 according to claim 4 are arranged on the moving bodies 13 and 34, respectively, in a straight line 6 parallel to the direction in which the needle reciprocates.
5. The tufted machine according to claim 4, wherein the tufted machine is rotatably mounted around 3. 6. The moving bodies 14 and 34 according to claim 5 above.
Moving body driving means (16 ・ 17 ・ 1) for driving
8.36.37.38) and rotation drive means 19 and 39 for rotating the needle drive mechanism 12 and the looper drive mechanism 32 around a straight line 63 parallel to the direction in which the needle reciprocates. The tufted machine according to claim 5, wherein the tufted machine is a tufted machine. 7. A knife drive mechanism 51 is mounted on the movable body 14 on which the looper drive mechanism 12 according to claim 1 is mounted, and the knife drive mechanism 51 drives the looper 35 and the knife drive mechanism 51. 2. A tufted machine according to claim 1, characterized in that the driving knife 52 is co-ordinated.