JPS597805B2 - Cylinder half flap for coma - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the construction of a cylinder half-lap for a comber.

As shown in Fig. 1, the conventional cylinder half-lap for combs has a groove 2 bored in the cylinder half-lap body 1 in the normal direction of the cylinder, and a throat plate 4 having a single point head 3 stacked thereon. A needle array ribbon 7 formed by inserting and fixing a band-shaped metal plate 5 into a dovetail groove 6 provided at the rear of the needle plate was inserted into the groove 2 and arranged in a row.

The degree of engagement between the groove 2 of the cylinder half-lap body 1 and the needle row ribbon 7 is very important, but in conventional cylinder half-laps, when the fibers are subjected to the combing action by the needle heads 3, the needle heads are moved into the cylinder. Since the needle row ribbon 7 is inclined in the direction of rotation, a component force F2 in the normal direction of the cylinder acts on the needle row ribbon 7 in the direction of pulling the needle row ribbon out.
There was a drawback that the gap between the groove 2 and the groove 2 became larger.

In addition, since the needle row ribbon 7 is formed by inserting and fixing the belt-shaped metal plate 5 into the throat plate 4, if a part of the throat plate is damaged, the needle row ribbon 7 can be pulled out from the groove 2 and the belt-shaped metal plate 5 can be inserted and fixed. It is necessary to remove only the damaged throat plate by cutting the metal plate 5 with a chisel, pliers, etc. However, it is extremely difficult to cut the metal plate without damaging the throat plate, and extra The disadvantage was that the needle plate had to be removed.

The present invention solves the above-mentioned drawbacks of the conventional cylinder half-lap for combing, and will be explained below based on embodiments.

FIG. 2 is a cross-sectional view of a main part of a cylinder half-lap for a comb showing an embodiment of the present invention.The cylinder half-lap body 1 has a groove 8 inclined at an angle α in the direction of rotation of the cylinder. Drill in the axial direction.

A triangular groove 9 that engages with the throat plate laminate is formed in the cylinder half-lap surface of the groove 8 in the cylinder axial direction.

Next, reference numeral 15 denotes a throat plate shaped like a dogleg, constituting the throat plate laminate 17. The throat plate 15 has an upper half shaped like a dogleg as the needle base 11, and a lower half as the needle base 11. A needle insertion part 1 that is inclined in the cylinder rotation direction below the front end of the base in the cylinder rotation direction and inserted into a groove bored in the cylinder half-lab body.
3.

A needle head 10 having a working angle β in the direction of rotation of the cylinder is provided on the upper part of the needle base 11, and a protrusion 12 that engages with the triangular groove 9 of the half-wrap is provided on the upper side surface of the needle insertion part 13. A recess 14 is formed at the corner of the substantially dogleg-shaped inner bent portion sandwiched between the needle base 11 and the needle insertion portion 13.

As shown in FIG. 3, a plurality of the needle plates 15 are stacked, and a hollow continuous body 16 such as a pipe made of metal or synthetic resin is press-fitted into the concave portion 14 of the throat plate. By pressing and crushing the needle plates, a plurality of the throat plates are fixed together to form the throat plate laminate 17.

The continuous body 16 is made of an elastic material and has a cross section of approximately C.
A shape shaped like a letter is sometimes used (Fig. 5).

The throat plate laminate 17 constructed as described above is assembled into a cylinder half-lap by inserting and arranging its needle insertion portion into the grooves 8 formed in 10 to 20 rows in the cylinder half-lap main body 1 at an angle in the direction of rotation of the cylinder. form.

The needle depth B can be freely changed by changing the height of the needle base 11, and the needle depth can be adjusted so that the needle depth becomes gradually shallower from the side of the cylinder half-lap that first contacts the fiber. By sequentially arranging different throat plate laminates, the combing effect can be further improved.

The needle heads can be arranged in a staggered manner in the direction of the cylinder axis as shown in Fig. 2, but one needle plate may also have multiple needle heads, and the needle heads may be arranged in a staggered manner in the cylinder axis direction as shown in Fig. 2. If the needle head density is gradually made finer, a better combing effect can be achieved.

The end surface 18 of the needle base 11 is inclined in the direction opposite to the cylinder rotation direction, and the needle base 11 of the needle plate adjacent to the cylinder rotation direction is inclined.
By arranging the end faces 18 of the fibers with no gaps between them, the fibers do not get caught in adjacent portions, and the fibers do not sink, further improving the combing action.

The shape of the continuous body 16 before press-fitting may be a cylinder or a rectangular tube such as a triangular tube or a square tube. Since a plurality of throat plates must be fixed together by the recess 14 and the connecting body 16, the combination of the recess 14 and the connecting body 16 as shown in Fig. 4 A, 8 and 8 is suitable. It is.

Since the cylinder half-lap for combing of the present invention has the above-mentioned configuration, it can perform an optimal combing action suitable for fibers, and the conventional cylinder half-lap has grooves in the normal direction. This had the disadvantage that the gap between the groove and the throat plate would increase with long use, but because the groove is inclined in the direction of rotation of the cylinder, the throat plate does not fall out and maintains a proper fit for many years. It is something that can be done.

In addition, since the hollow continuous bodies are press-fitted into the recesses at the corners of the approximately dogleg-shaped inner bent portion and are integrally formed, multiple throat plates can be easily and reliably fixed to each other. A plate laminate can be formed.

Furthermore, the recess provided in the corner between the needle base and the needle insertion part is located approximately in the center of the needle plate, and can be used as a guide when punching out the needle plate rather than a metal plate, resulting in high precision. The throat plate can be processed, and when stacking a plurality of throat plates, the continuous body fitting into the recess can be used as a guide to easily stack a plurality of throat plates.

In addition, in the conventional throat plate laminate, a band-shaped metal plate is inserted and fixed into a dovetail groove provided at the rear of the throat plate, so the laminate warps into an arch, and the throat plate laminate is inserted into the groove of the cylinder half-lap. Although it was difficult to insert the throat plate smoothly, the throat plate laminate of the present invention has a continuous body fitted to the corner located approximately in the center of the throat plate, so the cylinder half flap can be inserted without warping. It is also easy to insert into the groove.

Furthermore, even if a part of the throat plate laminate is damaged, it was previously very difficult to cut it without damaging the throat plate, but the part of the continuous body that is not in contact with the throat plate can be cut with a chisel. Then, cut the throat plate laminate by hand or insert a rod into the continuous body,
This invention has excellent effects, such as when cutting the throat plate laminate by pushing it open with a rod, only the damaged portion can be easily removed without damaging the throat plate.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a main part of a conventional cylinder half-lap, Fig. 2 is a cross-sectional view of a main part of a cylinder half-lap showing an embodiment of the present invention, and Fig. 3 is a cross-sectional view of a main part of a cylinder half-lap showing an embodiment of the present invention. The side view of the needle plate laminate, and FIGS. 4 and 5 are enlarged sectional views showing a state in which the continuous body is inserted into a recess provided in a corner sandwiched between the needle base and the needle insertion portion of the present invention. be. 1...Cylinder half flap body:. 2...
... Groove, 3 ... Needle head, 4 ... Throat plate,
5...Metal plate, 6...Dovetail groove, T...
... Needle row ribbon, 8... Groove, 9...
Triangular groove, 10... Needle head, 11... Needle base, 12... Protrusion, 13... Needle insertion part, 14... Concave part , 15... Throat plate, 16
...... Continuous body, 17... Throat plate laminate, 1
8...End face.

Claims (1)

[Claims] 1 The approximately dogleg-shaped upper half is the needle base, the lower half is inclined in the cylinder rotation direction below the front end of the needle base in the cylinder rotation direction, and is bored in the cylinder half flap body. The needle insertion section is to be inserted into the groove, and a needle head is provided on the upper part of the needle base, and a plurality of needle plates each having a concave portion on the inside bent part of the dogleg shape are provided with a hollow repeating body in the four parts. A needle plate laminate was formed by press-fitting and filling the needle plate laminate into an integrated body, and the needle insertion portions of the needle plate laminate were inserted and arranged in grooves in the cylinder half-lap main body, which were bored at an angle in the direction of rotation of the cylinder. A cylinder half-lap for combs that is characterized by: