JPS6032129Y2 - carding sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a carding sheet applied to, for example, a flat type carding machine.

For example, in synthetic fiber spinning, the amount of impurities contained in the raw fiber is small compared to that in cotton fiber, so a flatless carding machine is used, which has better productivity than a flat carding machine. There is.

As shown in Fig. 1, the flatless type carding machine has a plurality of cover plates (carding sheets) 2, 2, etc. placed in close contact with each other so as to cover the upper part of a cylinder 1. The fibers transferred from the take-in 3 to the cylinder 1 are carded between the metallic clothing provided on the cover plate 2 and the tips of the metallic clothing wound around the cylinder 1, and then The coated fibers are taken out as a web from the docker 4.

However, in the cover plate, the shape of the fixed metallic clothing forms a curved surface with a curvature approximately equal to the radius of curvature of the cylinder, and since it extends continuously in the rotational direction of the cylinder, the cover plate is placed opposite to the cylinder. It is difficult to accurately adjust the needle tip gauge when the needle is placed in the specified position.
Furthermore, since a gap is formed between the cover plate and the cylinder, there is a problem in that fibers blow out from the gap.

The present invention has been made in view of the above points, and includes forming support surfaces consisting of curved surfaces corresponding to the contact surfaces of the cylinder bend of the carding machine on both sides of the carding sheet, and extending between the support surfaces. Forming a plurality of recesses with a trapezoidal cross section,
A piece of metallic clothing is fixed to each recess so that the rear teeth protrude from the front teeth against the support surface, thereby preventing fibers from blowing out and making it possible to adjust the gauge accurately. The purpose is to provide a reading sheet.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 2, reference numeral 10 denotes a carding sheet body, and the carding sheet body 10 as a whole has an inner surface with a larger curvature than the diameter of the cylinder 1, and has cylinder bends of the carding machine on both sides thereof. Hit side (
A curved surface 11.11 corresponding to the contact surface (not shown) is formed, and by abutting the curved surface on the contact surface, it acts as a support surface.

Furthermore, between the curved surfaces 11 and 11, there are formed four recesses 12, 12, . . . at intervals along the curved surface.

The recesses 12 have a gold-shaped cross section, and each recess 12
Metallic clothing pieces 13, 13 cut to correspond to the shape of the recesses are successively fitted into the recesses.

The bottom surface 12a of the recess 12 is set to be at an inclined position with respect to a tangential line of the curved surface 11 on a line passing through the midpoint of the recess.

In other words, as shown in FIG.
It is positioned so that the length is 2.

Therefore, the metallic clothing piece 13 fitted into the recess 12
is the distance G between the tip side tooth portion 13a and the cylinder side tooth portion 14
1 is larger than the distance G2 between the rear end side toothed portion 13b and the cylinder side toothed portion 14, that is, they are attached with a toe-heel relationship.

Since the four recesses 12 are located at the same relative positions with respect to the curved surface 11, the tip surfaces of the metallic clothing pieces 13 are also located in the same manner, maintaining a toe-to-heel relationship.

On the other hand, the metallic clothing piece 13 is press-fitted into the recess 12 via a wedge piece 15. Therefore, if a part of the metallic clothing piece 13 is damaged, it can be repaired by removing the wedge piece 15. becomes.

When attaching the carding sheet to a flatless carding machine, place the tooth tip of the carding sheet downward, align the support surface 12 with the contact surface of the cylinder vent, and bolt the card in that position. Fix using a fixing means such as

As a result, the carding sheet is placed opposite the tooth surface of the cylinder in the relative position shown in FIG.

Gauge adjustment between the tooth surface of the carding sheet and the tooth surface of the cylinder is performed by adjusting the position of the cylinder bend bracket.

Once the position of the carding sheet has been adjusted, the carding machine will start operating, but in this case, the tooth surface of the carding sheet is in a so-called toe-heel relationship where the leading edge is wider than the trailing edge, so the carding machine will start to operate. In addition, since band-shaped spaces are formed in the tooth surface of the carding sheet in the direction of action, the fiber mass that is being twisted due to poor carding is temporarily retained in the spaces.
Since the fibers are then carded again, damage to the fibers can be minimized.

As described above, according to the present invention, since the carding sheet is closely fixed to the abutment surface of the cylinder bend, it is possible to completely prevent fibers from blowing out from the abutment area, and the gauge can be adjusted by adjusting the cylinder bend. This makes it possible to accurately adjust the gauge, and since the tooth surfaces provided on the carding sheet are in a toe-heel relationship, effective carding can be achieved.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a flat type carding machine, FIG. 2 is an overall perspective view of a carding sheet according to the present invention, and FIG. 3 is an explanatory diagram showing the operating state of the carding sheet. 10... Carding sheet body, 11...
...Curved surface, 12...Concavity, 12a...
・Bottom surface, 13...Metallic needle cloth piece.

Claims (1)

[Scope of utility model registration request] In a carding sheet having a carding sheet main body and a metallic cloth piece fixed to the surface of the carding sheet main body, the contact surface of the cylinder bend of the carding machine is attached to both sides of the carding sheet main body. While forming a support surface consisting of a corresponding curved surface, a plurality of recesses having a trapezoidal cross section are formed extending between the support surfaces, and a piece of metallic clothing is placed in each recess, and a tooth on the distal side is attached to the support surface. A carding sheet characterized in that the toothed part on the rear end side is fixed so as to protrude from the outer part, and the metallic clothing piece is in a toe-heel relationship with respect to the metallic clothing wrapped around the cylinder.