JPH07331565A - Apparatus for exchanging cylinder and dial of circular knitting machine - Google Patents

Abstract

PURPOSE:To reduce the weight of a cylinder by minimizing the volume of the cylinder-forming material to enable the high-speed operation of the machine and facilitate the work for aligning the cylinder and a dial. CONSTITUTION:This exchanging apparatus is composed of a rotary disk 31 having an attaching hole 32 and a circular groove 33 for each nominal size at the inner edge, a cylinder 34 having a circular ridge 35 at the lower end and vertically attached to the rotary disk 31 and a fixing means 37 for fixing the cylinder 34 to the rotary disk 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder and dial exchanging device of a circular knitting machine incorporated in a double knit circular knitting machine for knitting clothes such as shorts and underwear.

[0002]

2. Description of the Related Art Shorts using a double knit circular knitting machine
When knitting garments such as underwear, it is desirable to knit garments such as shorts and underwear using a special double-knit circular knitting machine incorporating a cylinder and dial according to the size of the clothes such as shorts and underwear. . However, installing a special double-knit circular knitting machine that incorporates a cylinder and dial according to the size of clothing such as shorts and underwear in the factory's building is a model of double-knit circular knitting that suits the size of clothing. A knitting machine is required, and there is a problem that the capital investment of the double knit circular knitting machine increases. In order to solve the above problems, cylinders and dials of different nominal sizes are prepared as a cylinder and dial replacement device for a double knit circular knitting machine, and the cylinder and dial provided on the double knit circular knitting machine are adjusted according to the size of clothing. The technical means in which the cylinder and dial of the above-mentioned nominal size are exchanged are known, for example, from Japanese Utility Model Publication No. 2-146182 and Japanese Utility Model Publication No. 4-131684.

In the double knit circular knitting machine disclosed in Japanese Utility Model Laid-Open No. 2-146182, as shown in FIG.
A rotary disk 3 is provided below the cam ring 2 integrated with the cylinder 4, and a cylinder 4 is erected at the inner end of the rotary disk 3.
Cylinder knitting needles 5 are slidably arranged in a large number of vertical grooves 4a provided on the outer periphery of the ring 4, and a dial 7 is arranged orthogonal to the cylinder 4 on a ring member 6 that rotates in synchronization with the cylinder 4 arranged above the cylinder 4. The dial knitting needles 8 are slidably arranged in a large number of lateral grooves 7a radially provided on the upper surface of the dial 7.

A plurality of cam holders 9 which are divided at unequal intervals are mounted on the cam ring 2 so as to be replaceable by mounting bolts 9a so as to face the outer peripheral surface of the cylinder 4. A control cam 10 is provided on the inner peripheral surface of each cam holder 9 so as to engage with the butt 5 a of the cylinder knitting needle 5. On the cam ring 11 located above the dial 7, a plurality of dial cam holders 12 divided at unequal intervals are replaceably mounted by mounting bolts 13 so as to face the upper surface of the dial 7. A dial control cam 14 is provided on the inner peripheral surface of each dial cam holder 12 so as to engage with the butt 8 a of the dial knitting needle 8.

In the double knit circular knitting machine of the above type,
In order to replace the cylinder and dial with a cylinder and dial having a nominal size according to the size of clothes, the plurality of dial cam holders 12 are removed from the cam ring 11 integrated with the dial unit by removing the mounting bolts 13.
The dial 7 is removed from the ring member 6 that is integral with the drive shaft, and the plurality of cam holders 9 are removed from the cam ring 2 by removing the mounting bolts 10. The cylinder 4 is removed together with the turntable 3 and then the desired nominal size is obtained. This is done by mounting the cylinder 4 and the dial 7 in the reverse order described above.

The knitting circular knitting machine disclosed in Japanese Utility Model Laid-Open No. 4-131684, as shown in FIG. 4, forms a bolt hole at the inner end of the rotary disk 3 and inserts the bolt 20 through the bolt hole. The cylinder 4 is positioned and fixed to the turntable 3 by being screwed into the screw hole provided on the lower surface of the cylinder 4, and the dial 7 is predetermined with the bolts 21 and 22 provided on the ring member 6 rotating in synchronization with the cylinder 4. The cylinder and dial, which are to be positioned and fixed in position, and which have a nominal size according to the size of the clothes, are replaced by a common positioning bolt.

[0007]

The cylinder and dial exchanging device shown in FIG. 3 is constructed so that the cylinder and the rotary disc are exchanged together, and at the time of exchange, the rotary disc to which the lubricating oil is adhered is removed and exchanged. Therefore, it is very difficult to center the cylinder and dial after replacement, because the surrounding environment is contaminated by lubricating oil, etc., and because there is no means for regulating the position of the cylinder and dial, it is very difficult to center the cylinder and dial after replacement. I need
In addition, there is a problem that it consumes considerable time and labor.

In the cylinder and dial exchanging device shown in FIG. 4, the cylinder and dial exchanging work can be carried out efficiently, but the cylinder is provided with bolts inserted through the bolt holes formed at the inner end of the rotary disk. If the reference position of the bolt hole of the rotary disk is set to a small diameter cylinder, the volume of the part of the cylinder to be mounted on the rotary disk will increase as the cylinder diameter increases. However, there is a problem in that it is not suitable for high-speed operation of the device.

The present invention has been made in view of the above points. A circular knitting machine that facilitates centering work between a cylinder and a dial, reduces the weight of the cylinder, and enables high-speed operation of the device. An object of the present invention is to provide an exchange device for a cylinder and a dial.

[0010]

A cylinder and a dial exchanging device of a circular knitting machine according to the present invention has a mounting hole and a concave ring groove for each size, which are rotatably provided below the mounting ring. A rotary disk, a cylinder having a convex annular portion corresponding to the concave annular groove at the lower end, and a cylinder standing on the rotary disk by fitting the convex annular portion in the concave annular groove, and fixing the cylinder to the rotary disk. It is characterized in that it is provided with a fixing means, and the cylinder and dial are exchanged for cylinders and dials of different nominal sizes.

[0011]

In the cylinder and dial exchanging device of the circular knitting machine according to the present invention, the cylinders of different nominal sizes are exchanged, and the convex ring portion provided at the lower end of the cylinder is provided with the concave ring for each nominal size provided on the turntable. Since it can be performed by fitting into the corresponding concave ring groove of the groove and fixing the cylinder to the rotating disk with the fixing means with the fixing means, the cylinder can be molded with the minimum material and the weight of the cylinder becomes lighter. In addition to enabling high speed operation, the centering work of the cylinder and dial can be easily performed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 30 denotes a mounting ring provided on the machine frame of the double knit circular knitting machine, and the mounting ring 3
A rotary disk 31 is rotatably provided below 0.
At the radially inner end 31a of the turntable 31, three mounting holes 32 and concave ring grooves 33 of different nominal sizes are formed at intervals in the radial direction. Each concave ring groove 33 has a depth of 3 m.
It is about m to 5 mm, and is formed at intervals of 12.7 mm in the radial direction so that it can be applied to three types of cylinders and can be applied to three types of cylinders. The numbers of the mounting holes 32 and the concave ring grooves 33 are increased or decreased as necessary. A cylinder 34 is erected on the turntable 31 so as to fit into one of the three mounting holes 32 and the concave ring groove 33 of different nominal sizes. At the lower end of the cylinder 34, a convex annular portion 35 corresponding to the concave ring groove 33 provided on the rotary disk 31 and a screw hole 36 corresponding to the mounting hole 32 are provided.

The cylinder 34 has a convex annular portion 3 provided at the lower end.
5 is fitted in the concave ring groove 34 provided on the rotary disc 31, and is vertically installed in a state of being positioned on the rotary disc 31.
By mounting a mounting bolt 37, which is inserted through the mounting hole 32 provided in the cylinder, into a screw hole 36 provided in the cylinder 34,
Fixed to. Cylinder knitting needles 38 are vertically slidably arranged in a large number of vertical grooves provided on the outer periphery of the cylinder 34.

An engaging step 39 which is inclined at about 45 ° is formed in the middle of the mounting ring 30. The engaging step 39 is engaged with the engaging step 39 and faces the outer circumference of the cylinder 34. Multiple cylinder cam segments 4 divided at equal intervals
0 is placed. These cylinder cam segments 4
0 is fixed to the attachment ring 30 via the attachment bolt 41. Control cams 42 and 43 are provided on the inner peripheral surfaces of the cylinder cam segments 40 so as to engage with the butt 38 a of the cylinder knitting needle 38.

On the other hand, a ring member 45 is attached to the drive shaft 44 arranged coaxially with the cylinder 34 so as to rotate in synchronization with the cylinder 34. This ring member 4
A dial 47 is replaceably provided on the intermediate member 46 connected to 5 via mounting bolts 48 and 49.
A large number of radial grooves are formed on the upper surface of the dial 47, and the dial needles 50 are arranged in the radial grooves so as to be slidable in the radial direction.

A segment mounting ring 51 is provided above the ring member 45 of the drive shaft 44, and an outer peripheral end of the segment mounting ring 51 is formed with an engagement step portion 52 inclined at about 45 °. This engagement step portion 52
Equally divided dial cam segment 53 to engage with
Are arranged. Each dial cam segment 53
It is fixed to the segment mounting ring 51 via a mounting bolt 54. Dial control cams 55, 56 are provided on the inner peripheral surface of the dial cam segment 53 so as to engage with the butt 50 a of the dial knitting needle 50.

The operation will be described below. In order to replace the cylinder 34 and dial 47 shown in FIG. 1 with the cylinder 34a and dial 47a having different nominal sizes shown in FIG. 2, first, the mounting bolt 54 is removed from the segment mounting ring 51 in FIG.
Is removed from the segment mounting ring 51. Then, from the intermediate member 46 connected to the ring member 45 to the mounting bolt 4
The dial 47 is removed from the intermediate member 46 by removing 8, 49. As a result, the dial 47 is removed from the circular knitting machine. This intermediate member 46 is also removed from the ring member 45 by removing the mounting bolt.

Next, from the mounting ring 30 to the mounting bolt 4
The cylinder cam segment 40 is removed from the mounting ring 30 by removing 1. Then, the mounting bolt 37 is removed from the cylinder 34, and the cylinder 34 is lifted upward to remove the cylinder 34 from the turntable 31. As a result, the cylinder 34 shown in FIG. 1 is removed from the circular knitting machine.

The cylinder 34 and dial 47 shown in FIG.
To mount the cylinder 34a shown in FIG. 2 on the circular knitting machine from which the cylinder 34a has been removed, a cylinder 34a having a different size from that of the cylinder 34 of FIG.
4a is aligned with the turntable 31 so that the convex annular portion 35 provided on the lower surface of the cylinder 34a is located directly above the corresponding concave annular groove 33 provided on the turntable 31, and then the cylinder 34a is placed on the turntable 31. Cylinder 3 by lowering in the direction of
The convex annular portion 35 of 4a is fitted into the concave annular groove 33 provided on the turntable 31. As a result, the cylinder 34a is replaced by the turntable 31.
It is erected while being positioned at. The cylinder 34a erected on the turntable 31 is positioned and fixed to the turntable 31 by screwing a mounting bolt 37, which is inserted through the mounting hole 32 from the lower side of the turntable 31, into a screw hole 36 provided on the cylinder 34a. It Next, the cylinder cam segment 40a corresponding to the cylinder 34a is attached to the engagement step portion 39 of the mounting ring 30.
Is arranged to engage with the cylinder cam segment 40
Is attached to the attachment ring 30 via the attachment bolt 41.
This completes the attachment of the cylinder 34a shown in FIG. 2 to the circular knitting machine.

Next, in order to mount the dial 47a shown in FIG. 2, first, the intermediate member 46 is mounted on the ring member 45 via mounting bolts. Then, the dial 47 of FIG.
Dial 47a with different size
It is attached to the intermediate member 46 via 8, 49. Dial 4
Since the screw hole provided in 7a is accurately positioned with respect to the attachment hole of the intermediate member 46, the dial 47a attached to the intermediate member 46 is fixed to the ring member 45 at an accurate position. Then, dial cam segment 5
3a is arranged on the segment mounting ring 51 so as to engage with the engagement step portion 52 provided on the segment mounting ring 51,
The dial cam segment 53a is fixed to the segment attachment ring 51 via the attachment bolt 54. This allows
The installation of the dial 47a shown in FIG. 2 on the circular knitting machine is completed.

As described above, in the replacement work of the cylinder 34a and the dial 47a, the cylinder 34a and the dial 47a can be easily and accurately centered, so that the replacement of the cylinder 34a and the dial 47a requires time and labor. Easy to do, without expense.

[0022]

As described above, according to the present invention, when the cylinder is replaced, the convex annular portion provided on the cylinder is fitted into the concave annular groove for each designated size provided on the rotating disk, and the cylinder is fixed by the fixing means. Since it is done by fixing the turntable, centering work between the cylinder and dial is easy, and since the cylinder can be molded with the minimum material, the weight of the cylinder is light and the equipment can operate at high speed. become.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a cylinder and dial exchange device of a circular knitting machine according to the present invention.

FIG. 2 is a view showing a state after a cylinder and a dial of the circular knitting machine are exchanged.

FIG. 3 is a view showing a cylinder and a dial exchanging device of a conventional circular knitting machine.

FIG. 4 is a view showing a cylinder and a dial exchanging device of a conventional circular knitting machine.

[Explanation of symbols]

 30 mounting ring 31 rotary plate 32 mounting hole 33 concave ring groove 35 convex annular portion 34 cylinder 36 screw hole 40 cylinder cam segment 44 drive shaft 45 ring member 47 dial 46 intermediate member 51 segment mounting ring 53 dial cam segment

Claims (1)

[Claims] 1. A cylinder and dial exchanging device of a circular knitting machine for exchanging a cylinder and a dial with cylinders and dials of different nominal sizes, wherein a mounting hole and a concave ring groove for each nominal size are formed in an inner end portion of a mounting ring. A rotary disk provided rotatably in the lower part, and a cylinder erected on the rotary disk by fitting the convex annular part having a convex annular part corresponding to the concave annular groove at the lower end into the concave annular groove, An apparatus for exchanging a cylinder and a dial of a circular knitting machine, comprising: fixing means for fixing the cylinder to a turntable.