JPS6135566Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the configuration of a carding machine wound with metallic wire.

In recent years, with efforts to save labor in the spinning process, efforts have been made to increase the production volume per carding machine.

Conventionally, with this high-production carding machine, the working angle of the metallic wire for the cylinder was set at 75° or more due to the large production volume.
78 degrees or less, the working angle of the metal wire for the dosing wire is set to 60 degrees or more and 65 degrees or less, that is, the difference between the working angles of the cylinder and the dossier is 10 degrees or more and 18 degrees or less, thereby increasing the transition rate from the cylinder to the dosfer.

However, there was a drawback that the fibers migrated from the cylinder to the fiber in an unopened state, resulting in cloudy-like slivers with poor parallelism.

Furthermore, if the working angle of the metallic wire for the cylinder is made small (for example, less than 70 degrees), there is a drawback in that the fibers wind around the cylinder at normal cylinder rotation speeds, increasing the neps and deteriorating the sliver quality.

The present invention solves the above-mentioned conventional drawbacks and provides an optimal combination of working angles of the cylinder metallic wire and the doffer metallic wire in a high-speed, high-production carding machine.

An embodiment of the present invention will be described below based on the drawings.

FIGS. 1A and 1B show metallic wires for cylinders according to the present invention, and FIGS. 2A and 2B show metallic wires for a dolpher according to the present invention.

Working angle of metallic wire for cylinder
゜, Back angle Y: 40゜, Tooth depth: 0.85mm, Number of threads M: 17
Mountain: 25.4mm, and a straight part is provided on the tooth bottom a to create a large space between the teeth.

Working angle of metallic wire for dolphins: 60
゜, Back angle Y: 42゜, Tooth depth: 2.4mm, Number of threads M: 14
Mountain/25.4mm.

The above metallic wire was wound on a high speed, high production carding machine and a spinning comparison test was conducted with conventional metallic wire.The results are as follows.

Spinning conditions Fiber: For cotton 40'S Production volume: 50 Kg/h Cylinder rotation speed: 360 rpm Number of neps: Conventionally it was 120 strands/g, but with the metallic wire of the present invention, it is 30 strands/g. .

The appropriate working angle of the metallic wire for the cylinder is 65° or more and less than 70°, and even when the cylinder speed of a high-speed, high-production carding machine is increased, the fibers will not fly out due to centrifugal force and sufficient carding action can be performed. I can do it.

Note that the working angle of the metallic wire for the cylinder is
If it is less than 65 degrees, the transition from cylinder to cylinder will be worse, and the number of nep will increase dramatically.

The working angle of the metallic wire for the dolphin combined with the metallic wire for the cylinder is best between 60° and 65°, that is, the difference between the working angles of the cylinder and the doff should be at least 0° and less than 10°.

If the working angle of the metallic wire for dolphin is large, the number of neps will increase, and if it is small, cloudy will occur.

Since the present invention is a carding machine that combines the metallic wire for the cylinder and the metallic wire for the dolphin as described above, the carding machine A of the present invention can be used for high-speed, high-production spinning as shown in Fig. 3. Machine B
Even if the production volume is increased compared to the previous model, the space between the teeth is large and the difference in working angle between the cylinder and the dowel is more than 0°.
It is possible to obtain a high-quality sliver with a small angle of less than 10°, good opening properties, and a small number of neps.

Figure 4 shows the relationship between the working angle of the cylinder metallic wire and the fiber parallelism of the sliver in cotton spinning.The use of the cylinder metallic wire of the present invention allows for excellent fiber opening even in high-speed, high-production spinning. Because of this, it is possible to spin a uniform sliver with less cloudy and excellent fiber parallelism compared to conventional slivers with a working angle of about 75°. Even if the production volume increases, there are few fibers that come out from the tooth tips, so there is little change in performance depending on the production volume.

Figure 5 shows the relationship between the amount of fiber passing through the carding machine A of the present invention and the conventional carding machine B. The period can be extended by 1.5 to 2 times.

In addition, the metallic wire for cylinders of the present invention has a large tooth angle of 28°, so the tooth strength is high and damage is small.

In addition, since a linear portion is provided at the bottom of the tooth of the metallic wire for the cylinder to create a large space between the teeth, this invention has great practical effects such as less clogging with seed and leaf debris.

[Brief explanation of the drawing]

Figures 1A and 2B are a side view and a front view of a metallic wire for a cylinder showing an embodiment of the present invention, and Figures 2A and 2B are a side view and a front view of a metallic wire for a cylinder showing an embodiment of the invention. Figure 3 is a production volume vs. neps number curve, Figure 4 is a cylinder metal wire working angle vs. fiber parallelism curve,
FIG. 5 is a graph showing the relationship between the amount of fiber passing through and the number of neps.

Claims (1)

[Scope of utility model registration request] The working angle of the metallic wire for the cylinder is set to 65° or more and less than 70°, and a straight part is provided at the bottom of the tooth to create a large space between the teeth, and the working angle of the metallic wire for the dolpher is set to 60° or more and less than 65°. carding machine.