JPH07305236A - Carding machine - Google Patents

Abstract

PURPOSE:To provide a carding machine which can improve the combing action on web layer and removing actions on dusts such as nep by allowing web layer conveyed toward the T-shaped bars to float on the surface side of the cylinder and produce carded slivers with only one machine from both cotton and synthetic fiber different in kinds and characteristics. CONSTITUTION:A T-shape bar 6 which is provided with a comber 6a is fixed at a position near a doffer 4 between a flat 3 and the doffer 3 and a comber 5a is attached to a position between the flat 3 and the T-shaped bar 6 and, in addition, an opening roller 5 rotating at a lowered speed and an edge sheet 7 whose knife edges 7a are set near the back side of the opening roller 5 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carding machine capable of transferring a fiber layer from a cylinder to a doffer while the fiber layer is lifted from the bottom of a combing member of the cylinder.

[0002]

2. Description of the Related Art A wrap supplied to a carding machine is first subjected to a carding action and a dust removing action by a cylinder at a portion of a take-in roller, and then, along with an upper outer peripheral portion of the cylinder, the wrap is fed with the cylinder. The flat, which is slowly moved in the direction, receives the second carding action and the dust removing action, and finally the T-shaped bar provided with the combing member receives the third carding action, and then the fiber layer is formed. The web was being delivered from the cylinder to Doffer.

[0003]

In the carding machine having the conventional structure, in order to improve the carding action received between the cylinder and the flat, it is required to narrow the gauge between the flat cloths. It However, when the gauge between the flat clothing is narrowed, the fiber layer passing between the cylinder and the flat is pressed against the surface of the cylinder, so that the cylinder on the doffer side and the T-shaped bar are The carding effect of the fiber layer received between the two was insufficient.

Further, in the state where the fiber layer is pressed against the surface of the cylinder, the above-mentioned inconveniences are conspicuous for cotton, synthetic fibers, particularly thin fibers and weak strength fibers. Each of the fibers was easily wrapped around the surface of the cylinder, and the transfer to the doffer was poor.
Therefore, not only is it impossible to spin the card sliver with a carding machine, but in order to be able to spin it, the gauge between the cylinder and the flat clothing must be greatly expanded. As a result, nep etc. increased remarkably and the parallelism also deteriorated, and it was impossible to prevent the quality deterioration of the card sliver.

The present invention has been made in view of these circumstances, and has a carding action on the fiber layer by moving the fiber layer moved toward the T-shaped bar to the surface side of the cylinder, and an action of removing nep and dust. The purpose of the present invention is to provide a carding machine in which both cotton and synthetic fibers with different fiber types and characteristics can be spun into a card sliver with one carding machine by installing this device. It was done.

[0006]

The present invention has been made to achieve the above object, and a T-shaped bar having a combing member such as a metallic wire is provided between the flat and the doffer of the outer peripheral portion of the cylinder. An opening roller, which is fixedly installed, includes a combing member such as a metallic wire between the T-shaped bar and the flat, and is rotated at a low speed in the vicinity of the cylinder. The opening roller and the T-shaped bar are connected to each other. A carding machine is invented, in which an edge sheet having a knife edge formed at one end in the vicinity of a cylinder and an opening roller is provided.

[0007]

The fiber layer moved by the cylinder is subjected to a carding action and a dust removing action by the flat, and then is mainly floated on the outer surface side of the cylinder by the combing member of the opening roller which is rotated at a low speed, and subsequently. The knife edge sheet and the T-shaped bar exert a dust removing action and a carding action. Therefore, the dust-removing action and the carding action in this part are significantly improved, and the fiber layer is smoothly delivered to the doffer. And fibers having low strength) can be spun.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a cylinder in which a metallic wire 1a is wound on a circumferential surface, and a taker-in roller 2 having a metallic wire on the outer peripheral surface is arranged on the lower left side of the cylinder 1 which is a wrap supply side. On the lower right side of the side, a doffer 4 having an intermediate size between a small diameter take-in roller 2 and a large diameter cylinder 1 and having a metallic wire on the outer peripheral surface is arranged.

The taker-in roller 2 is rotated in the direction opposite to the cylinder 1 at a circumferential speed of about half the circumferential speed of the cylinder 1 rotated in the direction of arrow P, and the doffer 4 is rotated from the taker-in roller 2 by It is rotating in the opposite direction to cylinder 1 at a slow circumferential speed.

A flat 3 to which a member 3a having a T-shaped cross section is connected endlessly is provided in substantially the upper half of the cylinder 1. The flat 3 is moved in the same direction as the cylinder 1 at an extremely slow speed. A member 3a having a T-shaped cross section that constitutes the flat 3 has a cloth 3b fixed to the surface facing the cylinder 1, and the take-in roller 2
Metallic wire 1 of cylinder 1
The fiber layer from which the dust carried in a is removed is given a carding action again to remove neps and dust and short fibers.

A plurality of T-shaped bars 6, for example, three T-shaped bars 6 provided with combing members 6a such as metallic wires on the surface facing the cylinder 1 between the flat 3 and the doffer 4 near the doffer 4 are provided. It is fixedly installed with the gauge set as 1.

An opening roller 5 having a comb-shaped member 5a such as a metallic wire on the outer peripheral surface is provided between the flat 3 and the T-shaped bar 6 near the T-shaped bar 6, and the opening roller 5 is set as the cylinder 1. It is attached so that it can be rotated. The opening roller 5 is rotated at a low speed in the direction opposite to the cylinder 1.

An edge sheet (moat knife) 7 is provided between the opening roller 5 and the uppermost part of the plurality of T-shaped bars 6. The edge sheet 7 has a knife edge 7a formed at one end, and the knife edge 7a is attached in a state of being brought close to the cylinder 1 and the opening roller 5.

Between the opening roller 5 and the flat 3,
Between the T-shaped bar 6 and the doffer 4, a top sheet 8 and a bottom sheet 9 covering the outer surface of the cylinder 1 are provided outside the cylinder 1 in order to prevent the turbulence of the accompanying airflow generated by the rotation of the cylinder 1. It is provided close to the surface.

Next, the operation of the apparatus will be described. When the carding machine is operated, the wrap supplied to the carding machine is first subjected to the carding action and the dust removing action at the part of the take-in roller 2, and then delivered to the cylinder 1.

The fiber layer held on the metallic wire 1a of the cylinder 1 and moved to the flat 3 side has a carding action again by the cloth 3b of the flat 3 which is moved in the same direction as the cylinder 1 at an extremely slow speed. Further, short fibers such as nep and dust are removed from the fiber layer.

The fiber layer subjected to the carding action again is subjected to the carding action for the third time by the opening roller 5 which is moved in the same direction as the cylinder 1 at a low speed, and the edge provided on the rear side of the opening roller 5 The sheet 7 effectively removes dust and short fibers such as leaf dust, and a suction hood (not shown) provided in that portion keeps the machine base and the room clean.

In addition, the opening roller 5 not only removes dust and short fibers, but also has a narrow gauge for spinning a high quality card sliver.
After passing between the flat wire 3 and the flat 3, the fiber layer, which is in a state of being held at the bottom of the metallic wire 1a of the cylinder 1, is treated by the carding action of the opening roller 5 and the action of the rotating air flow to the upper side of the metallic wire 1a. Bring to the surface.

The fiber layer that has passed through the opening roller 5 is subjected to the final carding action at the plurality of T-shaped bars 6 provided on the rear side of the opening roller 5. At this time, the fiber layer is floated above the metallic wire 1a of the cylinder 1 while receiving the carding action by the opening roller 5, so that the last T-shaped bar 6 which receives the carding action and the cylinder 1 are separated from each other. The effective carding effect is achieved by removing neps and improving parallelism.

The fiber layer moved to the doffer 4 side by the cylinder 1 is delivered to the doffer 4 side by the doffer 4 moved in the same direction as the cylinder 1 at a lower circumferential speed than the taker-in roller 2. In this case, since the fiber layer is floated on the surface side of the cylinder 1 and the engaging force with the metallic wire 1a is small, even if the force acting on the fiber layer is small, the fiber layer is moved from the cylinder 1 to the doffer 4 side. Can be handed over smoothly.

[0021]

According to the present invention, the following effects can be obtained.

In the carding machine according to the first aspect, since the combing member is provided between the flat and the T-shaped bar and the opening roller which is rotated at a low speed is provided, a narrow gauge portion is provided. The fiber layer that has passed and is held on the bottom side of the metallic wire of the cylinder is floated on the upper side of the metallic wire by the action of the opening roller and the rotating air flow, and the engagement force with the cylinder is reduced. Therefore, when switching from cotton spinning to spinning synthetic fibers, fine denier synthetic fibers, and low-strength fibers, the working angle and the number of points of the combing member wound around the cylinder had to be changed. It has an excellent practical effect that the disadvantages of (1) can be solved and these fibers can be spun by one carding machine.

The dust and short fibers separated by the opening roller are surely removed by the edge sheet with the knife edge formed at one end facing the opening roller. Further, the T-shaped bar fixed on the rear side of the opening roller not only enhances the carding action such as the fiber layer being floated on the surface side of the cylinder, but also the fixing of the opening roller to the cylinder surface. With the function of preventing wrapping, a narrow gauge can be set between the cylinder and the flat cloth, and a good quality card sliver can be spun out.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of FIG.

[Explanation of symbols]

 1 Cylinder 3 Flat 4 Doffer 5 Opening roller 5a Combing member 6 T-shaped bar 6a Combing member 7 Edge sheet 7a Knife edge

Claims (1)

[Claims] 1. A T-shaped bar provided with a combing member such as a metallic wire is fixedly provided between the flat on the outer peripheral portion of the cylinder and the doffer, and a T-shaped bar such as a metallic wire is fixed between the T-shaped bar and the flat. An opening roller provided with a combing member and rotated at a low speed is provided close to the cylinder, and a knife edge formed at one end between the opening roller and the T-shaped bar is brought close to the cylinder and the opening roller. A carding machine characterized by having an edge sheet.