CN217891799U - Color bar parallel-dividing extrusion die - Google Patents

Abstract

The utility model discloses a parallel color bar extrusion tooling of equalling divide, including die sleeve and die sleeve eyelidretractor, the die sleeve eyelidretractor cover is established outside the die sleeve, and is equipped with the glue injection hole that communicates with the injection molding machine rubber tube on the die sleeve eyelidretractor, and sprue and two time runners have been seted up to the die sleeve outer wall, and the sprue is equipped with the diffluence pass, and is equipped with the reposition of redundant personnel point in the sprue, sprue and two time runners intercommunication, and the terminal point of every time runner has the toper runner along sprue central line direction intercommunication, and the arbitrary section area that cuts of toper runner is unanimous. The problem of easy colour mixture of colour bar is solved, the reliable and stable nature that the colour bar was extruded has been improved.

Description

Color bar parallel-dividing extrusion die

Technical Field

The utility model relates to a mould technical field for the cable, concretely relates to parallel color bar extrusion tooling of equalling divide.

Background

The quality of the plastic electric wire product is related to various factors such as the quality of the plastic, the performance of an extruder, the extrusion temperature, the tension and the speed of a take-up and pay-off line, the preheating of a core wire, the cooling after the plastic is extruded, the design of a machine head mold and the like, wherein the most important factor is the final shaping device-mold in the plastic electric wire extrusion process. The geometric shape, the mechanism design and the size, the temperature, the pressure and the like of the die directly determine the success or failure of the wire processing. Therefore, the mold design, matching and heat preservation measures of any plastic electric wire product have been highly regarded.

Among the many types of plastic extrusion dies, there is a type of die for extruding color bars having a phase-splitting identification function. The mould that uses in the production of color bar discernment wire and cable mainly has: single color bar, double color bar and three color bar. The structures of the dies are basically the same, only the design of the plastic flow channel on the outer wall of the die sleeve is adopted, the designed flow channel is different, and the color bars for extrusion are different. With the continuous development of international markets by domestic wire and cable enterprises, more and more types of cables are exported overseas. In the market of developed areas such as Europe and America, a bundling aerial insulated cable with a large demand exists, and the insulating layer of the cable uses the color strip mould. Similar extrusion dies exist in the current market, and after the extrusion dies are used, the effect is not ideal according to feedback of a plurality of cable enterprises. The color stripe extruded by the traditional color stripe die has the defects of unevenness, inconsistent width of the color stripe, easy color mixing of the color stripe and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a parallel color bar extrusion tooling of equalling divide has solved the problem of the easy colour mixture of color bar.

The utility model discloses a technical scheme who realizes above-mentioned purpose adoption does: the utility model provides a parallel color bar extrusion tooling of equalling divide, including die sleeve and die sleeve eyelidretractor, the die sleeve eyelidretractor cover is established outside the die sleeve, and be equipped with the glue injection hole that communicates with the injection molding machine rubber tube on the die sleeve eyelidretractor, sprue and two time runners have been seted up to the die sleeve outer wall, the sprue is equipped with the diffluent mouth, and be equipped with in the sprue so that the impartial one of sprue is divided into two reposition of redundant personnel points that fall into two time runners, sprue and two time runners intercommunication, the terminal point of every time runner has the toper runner along sprue central line direction intercommunication, the arbitrary disconnected cross-section area of toper runner is unanimous.

As a preferred scheme of the parallel color bar-sharing extruding die, the shunting tip is positioned at the center of the main runner, and the center line of the shunting tip is superposed with the center line of the main runner.

As a preferred scheme of the parallel color bar-sharing extrusion die, the terminal points of the two secondary runners correspond to each other in the circumferential direction of the outer wall of the die sleeve, and the two secondary runners are symmetrically arranged relative to the central line of the main runner.

As a preferred scheme of the parallel uniform color bar extruding mould, the sum of the cross-sectional areas of the two secondary runners is equal to the cross-sectional area of the main runner.

As a preferred scheme of the parallel color bar-sharing extruding mold, the width of the tapered flow channel along the flow channel far away from the main flow channel is gradually widened, and the depth of the tapered flow channel along the flow channel far away from the main flow channel is gradually reduced, so that any cross-sectional area of the tapered flow channel is consistent.

As a preferable scheme of the parallel color bar-sharing extrusion die, at the terminal point of each conical runner, a through hole is formed in the conical runner along the direction vertical to the central line of the main runner, and the through hole penetrates through the inner wall of the die sleeve.

As a preferred scheme of the parallel color bar-sharing extrusion die, the cross-sectional area of the through hole is consistent with that of the terminal point of the conical flow passage.

As a preferred scheme of the parallel color bar equally-dividing extrusion die, the cross section of the through hole is square.

Has the beneficial effects that: the setting of sprue, runner, toper runner, reposition of redundant personnel point makes two color strip widths that the parallel equally divide color strip extrusion tooling to extrude unanimous, and the pressure of two time runners is also equally even, can guarantee the highly uniform of two color strips, and surface smoothness degree also can obtain guaranteeing, and color strip and insulating colour mixture that also can not have improved the reliable and stable nature that the color strip was extruded.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic view of the mold and runner.

Reference numerals are as follows: 1. the mold sleeve supporting device comprises a mold sleeve supporting device 2, a mold sleeve 3, a main runner 4, a flow dividing tip 5, a secondary runner 6, a conical runner 7 and a through hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed.

The color bar extrusion die can extrude a color bar plastic (color bar) with a split-phase identification function, and the die is called as a color bar extrusion die. The embodiment provides a parallel uniform color bar extrusion die, which comprises a die sleeve 2 and a die sleeve supporter 1, wherein the die sleeve supporter 1 is sleeved outside the die sleeve 2. The tapered die sleeve and the die sleeve supporter are tightly connected, so that flowing plastic provides continuous pressure for the die sleeve and the die sleeve supporter when extruding to avoid a gap between the die sleeve and the die sleeve supporter.

As shown in fig. 1 and 2, the outer wall of the mold sleeve 2 is provided with a main runner 3 and two secondary runners 5, the main runner 3 is provided with a branch port, a branch point 4 for equally dividing the main runner 3 into two secondary runners 5 is arranged in the main runner port, and the branch point 4 for equally dividing the main runner 3 into two secondary runners 5 is arranged in the branch port. The main runner 3 is communicated with the two secondary runners 5, the end points of the two secondary runners 5 correspond to the circumferential direction of the outer wall of the die sleeve 2 and form 180 degrees with each other, the two secondary runners 5 are symmetrically arranged relative to the central line of the main runner 3, and the sum of the cross-sectional areas of the two secondary runners 5 is equal to the cross-sectional area of the main runner 3.

The terminal point of each secondary flow channel 5 is communicated with a same conical flow channel 6 along the central line direction of the main flow channel 3, and any section area of the conical flow channel 6 is consistent. The width of the tapered flow channel 6 along the flow channel far away from the main flow channel 3 is gradually widened, and the depth of the tapered flow channel 6 along the flow channel far away from the main flow channel 3 is gradually reduced, so that any cross-sectional area of the tapered flow channel 6 is consistent.

Wherein, reposition of redundant personnel point 4 is in sprue 3 central point, and the central line of reposition of redundant personnel point 4 and the central line coincidence of sprue 3 set up.

At the terminal point of each conical runner 6, a through hole 7 is arranged on the conical runner 6 along the direction vertical to the central line of the main runner 3, the through hole 7 penetrates through the inner wall of the die sleeve 2, and the cross-sectional area of the through hole 7 is consistent with that of the terminal point of the conical runner 6. Preferably, the cross-section of the through-hole 7 is square.

The utility model discloses a sprue: and the runner on the die sleeve, the die sleeve 2 and the die sleeve supporter 1 are respectively provided with a glue injection hole communicated with a rubber pipe of the injection molding machine, and the main runner 3 is communicated with the glue injection hole.

A secondary flow channel: and the runner on the die sleeve is connected with the main runner and the conical runner.

A conical flow channel: and the runner on the die sleeve is connected with the secondary runner and the through hole.

In practical application, a person skilled in the art can design the tapered runners with different cross-sectional areas according to cables with different outer diameters, so as to ensure the proportional size of the color bars on the cable insulating layer or the cable sheath layer.

The utility model discloses compare with traditional color bar mould:

the flow channel design uses a flow dividing tip, so that the plastic flow of the two flow channels can be ensured to be the same;

although the number of the flow passages is increased and the shape of the flow passages is changed, the section area of the flow passages is not changed all the time;

the width and the height of two extruded color bars are the same, which is not easy to realize by the traditional die;

the two extruded color strips cannot mix colors with the insulating material, and the traditional die is not easy to realize;

the preference uses the molybdenum steel of the Lopa as die sleeve material, not only durable, and the smooth finish also will be higher, and the outward appearance of painted stripe will also be better.

The utility model discloses a color bar extrusion tooling (double-colored strip) is equallyd divide to the parallel, makes the width of color bar and the unanimity of height obtain effective guarantee, and the one-time crowded qualification rate of the color bar on the insulation promotes 80-90%; because the pressure of the two runners is uniform, the color mixing phenomenon of the color strips and the insulation cannot occur, the probability of the color mixing phenomenon is 0, and the production efficiency of the cable is improved; the quality of the harsh product is effectively ensured.

Claims (8)

1. The utility model provides a parallel color bar extrusion tooling of equalling divide, includes die sleeve (2) and die sleeve eyelidretractor (1), and die sleeve eyelidretractor (1) cover is established outside die sleeve (2), and is equipped with the notes gluey hole that communicates with injection molding machine rubber tube on die sleeve eyelidretractor (1), its characterized in that: sprue (3) and two time runners (5) have been seted up to die sleeve (2) outer wall, sprue (3) are equipped with the diffluent mouth, and be equipped with in the sprue so that sprue (3) equalling divide into reposition of redundant personnel point (4) of two time runners (5) into, sprue (3) and two time runners (5) intercommunication, the terminal point of every time runner (5) has toper runner (6) along sprue (3) central line direction intercommunication, the arbitrary disconnected cross-sectional area of toper runner (6) is unanimous.

2. The parallel color bar sharing extrusion die of claim 1, wherein: the flow dividing tip (4) is positioned at the center of the main flow channel (3), and the center line of the flow dividing tip (4) is superposed with the center line of the main flow channel (3).

3. The parallel color bar sharing extrusion die of claim 1, wherein: the terminal points of the two secondary runners (5) correspond to the circumferential direction of the outer wall of the die sleeve (2), and the two secondary runners (5) are symmetrically arranged relative to the central line of the main runner (3).

4. The parallel color bar sharing extrusion die of claim 1, wherein: the sum of the cross-sectional areas of the two secondary channels (5) is equal to the cross-sectional area of the primary channel (3).

5. The parallel color bar sharing extrusion die of claim 1, wherein: the width of the tapered flow channel (6) along the flow channel far away from the main flow channel (3) is gradually widened, and the depth of the tapered flow channel (6) along the flow channel far away from the main flow channel (3) is gradually reduced, so that any cross-sectional area of the tapered flow channel (6) is consistent.

6. The parallel color bar sharing extrusion die of claim 1 or 5, wherein: and at the terminal point of each conical runner (6), a through hole (7) is formed in the conical runner (6) along the direction vertical to the central line of the main runner (3), and the through hole (7) penetrates through the inner wall of the die sleeve (2).

7. The parallel color bar sharing extrusion die of claim 6, wherein: the cross-sectional area of the through hole (7) is consistent with the cross-sectional area of the terminal point of the conical flow passage (6).

8. The parallel color bar sharing extrusion die of claim 6, wherein: the cross section of the through hole (7) is square.

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