CN206696493U - A kind of compound bundle yarn mould - Google Patents

Abstract

The utility model discloses a kind of compound bundle yarn mould, it is characterised in that including external mold and internal model, the via passed through for pricking yarn has been opened up in described internal model, the periphery cladding that via circumferencial direction is located in internal model is connected to external mold.Compound bundle yarn mould structure described in the utility model is simple, low manufacture cost, reduces replacement cost when using, and installation replacing is convenient and swift, and mould wearability is good, and caloric value is small, avoids high temperature from causing to prick yarn deformation retract, ensures cable core quality.

Description

A kind of composite binding yarn mold

technical field

The utility model relates to the technical field of yarn binding processing devices, in particular to a composite yarn binding mold.

Background technique

The optical cable is mainly composed of optical fiber, plastic protective sleeve and plastic sheath. The optical fiber forms a cable core in a certain way, and then is covered with a sheath, and some are also covered with an outer sheath. After a certain process, the cable is formed. In the production process of the optical cable, there is a cable forming process, in which multiple optical fiber bundle tubes, filling ropes and central strength members are twisted together. Helically wound with the filling rope, the fiber bundle tube and the filling rope have certain toughness and strength, and they need to be bound and fixed through the yarn binding process, so as to prevent the fiber bundle tube and the filling rope from returning to the original straight state due to elasticity. The existing process is to use the binding machine to wrap the binding yarn around the cable core to bind it. In order to ensure the uniformity and stable tension of the binding binding yarn, it is necessary to wind the binding yarn on the cable core through a mold. The existing mold It is an all-metal part. When the yarn passes through the mold at high speed, it wears a lot and generates a lot of heat. The overall replacement cost of the mold is high. High temperature will easily lead to deformation and shrinkage of the yarn, which will affect the quality of the cable core.

Utility model content

The technical problem to be solved and the technical task proposed by the utility model are to improve the existing technology and provide a composite yarn binding mold to solve the problem of the traditional yarn binding mold in the current technology with large wear, large heat generation, and high mold overall replacement cost The problem.

For solving the above technical problems, the technical solution of the utility model is:

A composite binding yarn mold, characterized in that it includes an outer mold and an inner mold, the inner mold is provided with a via hole for the binding yarn to pass through, and the outer mold is connected to the outer mold by covering the inner mold in the circumferential direction of the via hole . The composite yarn binding mold described in the utility model adopts the combined structure of the outer mold and the inner mold, the yarns pass through the inner mold, and the friction between the yarn and the inner mold causes the inner mold to wear and generate heat. When the inner mold wears excessively, it can be convenient Replace the inner mold without replacing the outer mold, reduce the amount of materials to be replaced, and effectively reduce the cost of mold replacement.

Further, the inner mold is a stainless steel cylinder, which has good wear resistance and good heat dissipation, avoids deformation and shrinkage of yarn binding caused by high temperature, and ensures the quality of the cable core.

Further, the outer mold is a bakelite sleeve, which is low in use cost, and the bakelite is non-absorbent, non-conductive, high-temperature-resistant, and high-strength, which ensures the dimensional accuracy of the mold and has a long service life.

Further, the cylinder wall of the outer mold is provided with locking screw holes penetrating to the outer wall of the inner mold, and screws are installed in the locking screw holes to tighten the inner mold, which is convenient for loading and unloading, and ensures the normal use of the mold.

Further, the diameter of the via hole is a transitional structure with wide ends and narrow middle, which increases the contact area between the via hole and the binding yarn, avoids the breaking of the binding yarn caused by the via hole, and ensures the continuous and stable progress of the binding process.

Further, the inner wall of the outer mold is provided with a notch step that cooperates with the inner mold to improve installation convenience, and the notch step is used as a positioning reference to ensure the matching accuracy of the outer mold and the inner mold.

Compared with the prior art, the utility model has the advantages of:

The composite yarn binding mold described in the utility model has simple structure, low manufacturing cost, reduced replacement cost during use, convenient and fast installation and replacement, good wear resistance of the mold, small calorific value, avoids deformation and shrinkage of the yarn binding caused by high temperature, and ensures cable core quality.

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The composite yarn binding die disclosed in the embodiment of the utility model can be easily replaced after wear and tear, reduces the cost of use, has low heat generation, avoids deformation and shrinkage of the yarn binding caused by high temperature, and ensures the quality of the cable.

As shown in Figure 1, a composite yarn binding mold includes an outer mold 1 and an inner mold 2. The inner mold 2 is provided with a via hole 3 for the yarn binding to pass through. The aperture of the via hole 3 is wide at both ends and narrow in the middle, and the via The two ends of the hole 3 are transitional structures, which increase the contact area between the tying yarn and the via hole 3, avoid cutting off the tying yarn at the edge of the via hole 3, and ensure the continuous and stable process of the tying yarn. The inner mold 2 is located at the circumference of the via hole 3 The outer mold 1 is connected to the outer covering of the direction, and the inner wall of the outer mold 1 is provided with a notch step 5 that matches the inner mold 2. The notch step is used as a positioning reference to ensure that the outer mold and the inner mold are in place. 2 is a stainless steel cylinder, and the outer mold 1 is a bakelite sleeve. Stainless steel has good wear resistance, bakelite has high temperature resistance, high strength, and low cost. The structure of inner mold 2 and outer mold 1 is used to make the inner mold 2 wear seriously. Only the inner mold 2 can be replaced, while the outer mold 1 can continue to be used, which reduces replacement costs, effectively reduces heat generation, avoids yarn binding deformation and shrinkage, and ensures cable quality.

The connection mode of the outer mold 1 and the inner mold 2 can be designed to be threaded on the periphery of the inner mold 2, and the inner mold 2 and the outer mold 1 are directly threaded; the outer mold 1 and the inner mold 2 can also be used for interference fit; In this embodiment, a locking screw hole 4 penetrating to the outer wall of the inner mold 2 is opened on the cylinder wall of the outer mold 1, and screws are assembled on the locking screw hole 4 to tighten the inner mold 2, which has a simple structure and is easy to assemble and disassemble.

The above are only preferred implementations of the present utility model. It should be pointed out that the above-mentioned preferred implementations should not be regarded as limitations on the present utility model, and the protection scope of the present utility model should be based on the scope defined by the claims. For those skilled in the art, without departing from the spirit and scope of the utility model, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims (6)

1. A composite yarn binding die, characterized in that, comprises an outer mold (1) and an inner mold (2), and the inner mold (2) has provided a via hole (3) for the yarn binding to pass through. The periphery of the mold (2) located in the circumferential direction of the via hole (3) is covered and connected with the outer mold (1). 2. The composite yarn binding mold according to claim 1, characterized in that, the inner mold (2) is a stainless steel cylinder. 3. The composite binding mold according to claim 2, characterized in that, the outer mold (1) is a Bakelite sleeve. 4. The composite yarn binding mold according to claim 3, characterized in that, a locking screw hole (4) penetrating to the outer wall of the inner mold (2) is opened on the cylinder wall of the outer mold (1). 5. The composite yarn binding die according to claim 1, characterized in that, the diameter of the via hole (3) is a transitional structure with two ends wide and a middle narrow. 6. The composite yarn binding mold according to claim 1, characterized in that, the inner wall of the outer mold (1) is provided with a notch step (5) matching with the inner mold (2).