CN201136918Y - Carding machine cylinder bottom drain - Google Patents

Abstract

The large bottom of the carding machine cylinder is a modification of the existing large bottom of the carding machine cylinder. A slit 2 is provided at the lowest part of the large drain bottom 1 along the axial direction of the cylinder 3, and the large drain bottom 1 is divided into two pieces, the front large drain bottom 1-1 and the rear large drain bottom 1-2. The distance between the end of the bottom 1-1 and the cylinder 3 adjacent to the large drain bottom 1-2 of the rear block is 0.75-1mm. Since the large drain bottom 1 is a split type, not only the distance between the front large drain bottom 1-1 and the rear large drain bottom 1-2 can be adjusted during installation, but also the lowest point of the large drain bottom 1 and the cylinder 3 can be adjusted. the distance between. Because a reasonable gap can be controlled through adjustment between the cylinder 3 and the large drain bottom 1, the broken fibers will be taken away by the cylinder 3. Gap 2 supplies air to the area, forming a negative pressure area at the bottom, better taking away the glass fibers deposited on the front large drain bottom 1-1 and the rear large drain bottom 1-2, eliminating the hidden danger of equipment damage , Improve product quality and ensure the smooth progress of production.

Description

Carding machine cylinder bottom drain

technical field

The large bottom of the carding machine cylinder is a modification of the existing large bottom of the carding machine cylinder.

Background technique

Glass fiber needle felt is a new type of non-woven material with a wide range of uses. It has a three-dimensional microporous structure, high porosity, low filtration resistance, high temperature resistance, and corrosion resistance. It is a high-temperature filter material with reasonable structure and excellent performance. The manufacturing process is to use glass fiber as the raw material. The glass fiber is fully combed by a carding machine to form a flat and fluffy monofilament glass fiber net. A needle-punched felt material with certain functions is formed.

The carding machine is the key equipment for producing needle felt, and the cylinder 3 is the core of the whole carding machine. As shown in Figure 3, the cylinder 3 is set between the doffer 4 and the licker-in roller 5, and the large drain bottom 1 is set in the cylinder 3, the small drain 6 is arranged below the licker-in 5, wherein the large drain 1 plays a vital role in the process of fiber carding. During the fiber carding process, the cylinder 3 obtains fibers from the licker-in roller 5, and after carding, most of the fibers are transferred to the next process through the doffer 4, and the cylinder 3 will hold a small part of the glass fiber and continue to rotate at a high speed. During the high-speed rotation process, some glass fibers will fall on the bottom of the cylinder 3, and the large drain bottom 1 plays the role of supporting the scattered fibers and removing the scattered fibers under the high-speed rotating air flow.

At present, the commonly used nonwoven carding machine cylinder bottom 1 is an integral type, which adopts a concave and smooth integral metal plate structure. The integral type bottom 1 is no problem for the production of synthetic fibers, but when carding glass fibers And when glass fiber and synthetic fiber are mixed, because the glass fiber is brittle and easy to break, the specific gravity of the fiber itself is relatively large. When it moves to the bottom with the cylinder 3, some broken fibers will fall on the large drain due to their own weight. on the bottom. Because the distance between all rollers and rollers of the whole carding machine (comprising the distance between the two ends of the large drain bottom 1 and the cylinder 3) is very small, it is necessary to check with a spacer. When using the overall structure of the large drain 1, the spacer can only be used to adjust the distance between the front and rear ends of the large drain 1 and the cylinder 3, often due to the deflection produced by the metal of the large drain 1 itself due to the self-weight of the carding machine, the large drain There will be a large distance between the middle part of 1 and the bottom of cylinder 3, and it cannot be adjusted by the spacer. The larger distance between the bottom of the big drain bottom 1 and the cylinder 3 cannot generate enough swirling airflow to drive the scattered fibers deposited on the big drain bottom, so it often occurs between the cylinder 3 and the big drain bottom 1. Scattered fibrous mass accumulation. With the continuous accumulation of scattered fiber clusters, the space between the cylinder 3 and the large drain bottom 1 is blocked. When this space is reduced to a certain extent, the scattered fiber clusters will move together with the high-speed moving cylinder 3, Generate huge impact sound and vibration and affect product quality; more serious situation is: due to the small distance between the licker-in roller 5, cylinder 3, and large drain bottom 1, when the backlog of scattered fiber clusters is large, the scattered fiber clusters Press the large drain bottom 1 to the metal card clothing of the licker-in roller 5, and the barbs of the metal card clothing will bring the large drain bottom 1 into the gap between the licker-in roller 5 and the cylinder 3, causing serious equipment damage and making production impossible.

Contents of the invention

The purpose of the invention of the present utility model is: in view of the above-mentioned existing problems, a new type of carding machine cylinder big drain bottom is proposed, which can solve the problem that the scattered glass fiber clusters encountered in the process of carding glass fibers are blocked in the space at the bottom of the big drain bottom. Problems that damage machinery and affect product quality.

The technical solution of the utility model is: the big drain bottom of the carding machine cylinder is composed of the big drain bottom 1 and the cylinder 3, and a slit 2 is arranged at the lowest part of the big drain bottom 1 along the axial direction of the cylinder 3, and the big drain The bottom 1 is divided into two pieces, the front big drain bottom 1-1 and the rear big drain bottom 1-2, the end adjacent to the front big drain bottom 1-1 and the rear big drain bottom 1-2 and the cylinder 3 The spacing is 0.75-1mm.

The distance between the gap 2 between the large drain bottom 1-1 of the front block and the large drain bottom 1-2 of the rear block is less than 7mm.

Under the slit of this value range, the high-speed movement of the cylinder 3 will form a negative pressure zone at the bottom, so the slit 2 will supplement the air in the zone to avoid the formation of scattered glass fiber clusters.

In the utility model, since the large drain bottom 1 is changed from the original integral type to the split type, not only the spacer can be used to adjust the front block large drain bottom 1-1, and the rear block large drain bottom 1-2 during installation. At the same time, the distance between the lowest point of the large drain bottom 1 and the bottom of the cylinder 3 can also be adjusted. When the cylinder 3 rotates at a high speed, it will generate a strong airflow. When the glass fiber falls, because the gap between the cylinder 3 and the large drain bottom 1 can be adjusted to control a reasonable small gap, the scattered fibers will be absorbed by the high-speed rotating airflow of the cylinder 3. Take it away, it is not easy to accumulate, and the gap 2 will supplement the air in the area, which will form a negative pressure area at the bottom, and better take away the large leaky bottom 1-1 of the front block and the large leaky bottom 1-2 of the rear block of the cylinder 3 The broken glass fiber on the surface eliminates the hidden danger of equipment damage, improves product quality, and ensures the smooth progress of production.

Description of drawings

Fig. 1 is the schematic diagram of the structure of the large drain bottom of the utility model cylinder

Fig. 2 is the top view of the large drain bottom in the utility model

Figure 3 is a schematic diagram of the structure of the integral cylinder drain bottom

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.

Disassemble the original integral large drain bottom 1 and small drain bottom 6, select a steel plate thickness of 1.0 mm according to the diameter of the equipment cylinder 3, and process it into the front large drain bottom 1-1 and the rear large drain bottom 1-2, and install Use the spacer to adjust the distance between the front and rear points of the front large drain bottom 1-1 and the rear block large drain bottom 1-2, and the adjacent ends in the middle and the cylinder 3. The distances between the points are: the front point The spacing is 3mm, the spacing between adjacent ends is 0.875mm, and the spacing between rear points is 0.37mm. The gap width between the large drain bottom 1-1 of the front block and the large drain bottom 1-2 of the rear block is 5mm.

Claims (2)

1. The carding machine cylinder drain bottom is composed of the big drain bottom (1) and the cylinder (3), and is characterized in that: a gap is set at the lowest part of the big drain bottom (1) along the axial direction of the cylinder (3) (2), the big leaky bottom (1) is divided into front block big leaky bottom (1-1) and back block big leaky bottom (1-2) two pieces, front block big leaky bottom (1-1) and back block The distance between the adjacent ends of the large leak bottom (1-2) and the cylinder (3) is 0.75-1mm. 2. The carding machine cylinder big drain according to claim 1, characterized in that: the distance between the gap (2) between the front big drain (1-1) and the rear big drain (1-2) less than 7mm.

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