CN211807696U

CN211807696U - Hard core rubber tube extruding means

Info

Publication number: CN211807696U
Application number: CN202020382436.2U
Authority: CN
Inventors: 褚福金; 曹锐; 刘霞
Original assignee: Zhongjin Hydraulic Rubber Pipe Co ltd
Current assignee: Zhongjin Hydraulic Rubber Pipe Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-10-30
Anticipated expiration: 2030-03-24

Abstract

The utility model relates to a hard core rubber tube extrusion mechanism, including extruder barrel, extruder head, outer gluey extrusion head and inner core pullover, the inside of extruder barrel transversely is provided with the pivot, and the outside spiral winding of pivot has spiral stirring leaf, the one end of pivot is connected with change gear box, and the pivot is fixedly connected with change gear box's output shaft, change gear box's input shaft is connected with driving motor, the side that the extruder barrel is close to change gear box one end is provided with into jiao kou, the other end of extruder barrel is connected with the extruder head, and the extruder head communicates with the extruder barrel through the connector, the inside of extruder head is provided with fixed chamber and the connection chamber rather than communicating, and the inside of outer gluey extrusion head is provided with the crowded gluey chamber that links up closely with fixed chamber, inner core pullover is located fixed chamber, and the exit end of inner core pullover passes crowded gluey chamber and extends to the outside of extruder, the utility model discloses the extrusion is even, prevents that eccentric effectual, convenient to use.

Description

Hard core rubber tube extruding means

Technical Field

The utility model relates to a hard core rubber tube equipment technical field specifically is a hard core rubber tube extruding means.

Background

The term "rubber" is derived from Indian, meaning "lacrimation tree" and natural rubber is produced by coagulating and drying latex from hevea rubber tree during tapping. The processed finished product is a material with elasticity, insulativity, impermeability and air, which is mainly divided into two types of natural rubber and synthetic rubber, wherein the natural rubber is prepared by extracting colloid from plants such as rubber trees, rubber grasses and the like and then processing, the synthetic rubber is obtained by carrying out polymerization reaction on various monomers, the rubber product is widely applied to various aspects of industry or life and has wide application, and the rubber can be divided into natural rubber, general rubber, styrene butadiene rubber, nitrile butadiene rubber, silicon rubber, butadiene rubber, isoprene rubber, ethylene propylene rubber and chloroprene rubber in detail.

The rubber extruder is also called extruder, is a kind of basic equipment in rubber industry, is one of key equipment influencing product quality, plays a very important role in the production process of tires and rubber products, the development of foreign rubber extruders goes through the stages of plunger type extruders, screw type hot feed extruders, common cold feed extruders, main and auxiliary screw cold feed extruders, cold feed exhaust extruders, pin cold feed extruders, compound extruders, etc., in the process of extruding rubber tubes by rubber extrusion, a bracket for receiving the extruded rubber tubes is provided, the inner core sinks by the weight of the formed rubber tubes after passing through the outer rubber extrusion head, the extruded rubber is extruded from the gap between the outer rubber extrusion heads, at the moment, the inner core sleeve head drops under the influence of gravity, the gap between the outer rubber extrusion head and the top of the inner core sleeve head is larger, the extrusion amount of glue is large, the gap at the bottom is small, the extrusion amount of glue is small, the rubber tube is eccentric after extrusion, the phenomenon of thick upper part and thin lower part is caused, the quality of the rubber tube is influenced, and the rubber tube is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hard core rubber tube extruding means to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a hard core rubber tube extrusion mechanism comprises an extruder barrel, an extruder head, an outer rubber extrusion head and an inner core sleeve head, wherein the outer rubber extrusion head and the inner core sleeve head are arranged inside the extruder head, the extruder head is connected to the output end of the extruder barrel, a rotating shaft is transversely arranged inside the extruder barrel, a spiral stirring blade is spirally wound outside the rotating shaft, one end of the rotating shaft is connected with a speed change gear box, the rotating shaft is fixedly connected with the output shaft of the speed change gear box, the input shaft of the speed change gear box is connected with a driving motor, a rubber inlet is arranged on the side surface of the extruder barrel close to one end of the speed change gear box, the other end of the extruder barrel is connected with the extruder head, the extruder head is communicated with the extruder barrel through a connector, a fixed cavity and a connecting cavity communicated with the fixed cavity are arranged inside the extruder head, the fixed cavity and the connecting cavity are respectively, the outer rubber extrusion head is arranged in the connecting cavity, the inner rubber extrusion head is provided with a rubber extrusion cavity which is tightly connected with the fixed cavity, the inner core sleeve head is positioned in the fixed cavity, and the outlet end of the inner core sleeve head penetrates through the rubber extrusion cavity and extends to the outer side of the extruder head.

Preferably, the inner side of the connecting cavity is provided with an internal thread, and the outer side of the outer rubber extrusion head is provided with an external thread matched with the internal thread of the connecting cavity.

Preferably, the outlet end of the inner core sleeve head is provided with an elongated nozzle, and the elongated nozzle extends to the outer side of the outlet end of the outer rubber extrusion head.

Preferably, a tube core is inserted into the outer glue extrusion head.

Preferably, a support is arranged at the discharge end of the extruder head.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a hard core rubber tube extruding means, through in the crowded package in-process, extend the extension mouth that sets up inner core pullover exit end to the outside of outer gluey exit end of extruding the head, thereby can through lengthen the mouth of inner core pullover, can support fashioned rubber tube in the crowded package in-process, prevent that the rubber tube from weighing down because of gravity, thereby play certain supporting role to the tube core to a certain extent, make the tube core and fashioned rubber tube keep the level (be completely perpendicular with the extruder) in the short time of extruding the head through outer gluey, thereby guarantee that the clearance between outer gluey extrusion head and the inner core pullover is unanimous from top to bottom, prevent to make the inner core pullover weigh down under the influence of gravity, cause the clearance of outer gluey extrusion head and inner core pullover top great, the volume of glue of extruding is many, the clearance of bottom is less, the volume of glue of extruding is few, cause the phenomenon of being thick down, the rubber tube is eccentric after being extruded, the quality of the rubber tube is affected, and the rubber tube is convenient to use.

Drawings

Fig. 1 is a schematic view of the overall overlooking internal structure of the present invention;

FIG. 2 is a schematic view of the top view of the internal structure of the extruder head of the present invention;

fig. 3 is a schematic view of the cross-sectional structure a-a in fig. 2.

In the figure: 1-driving motor, 2-glue inlet, 3-extruder barrel, 4-extruder head, 5-tube core, 6-rotating shaft, 7-spiral stirring blade, 8-speed changing gear box, 9-connecting port, 10-connecting cavity, 11-lengthening nozzle, 12-outer glue extrusion head, 13-inner core sleeve head, 14-fixing cavity and 15-glue extrusion cavity; 16-bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, the extrusion mechanism for a hard core rubber tube comprises an extruder barrel 3, an extruder head 4, an outer rubber extrusion head 12 and an inner core sleeve head 13, wherein the outer rubber extrusion head 12 and the inner core sleeve head 13 are both arranged inside the extruder head 4, the extruder head 4 is connected to the output end of the extruder barrel 3, a rotating shaft 6 is transversely arranged inside the extruder barrel 3, a spiral stirring blade 7 is spirally wound on the outer side of the rotating shaft 6, one end of the rotating shaft 6 is connected with a speed change gear box 8, the rotating shaft 6 is fixedly connected with the output shaft of the speed change gear box 8, the input shaft of the speed change gear box 8 is connected with a driving motor 1, a rubber inlet 2 is arranged on the side surface of the extruder barrel 3 close to one end of the speed change gear box 8, the other end of the extruder barrel 3 is connected with the extruder head 4, the extruder head 4 is communicated with the extruder barrel 3 through a connecting port 9, the fixed cavity 14 and the connecting cavity 10 are respectively communicated with two opposite sides of the extruder head 4, the outer glue extrusion head 12 is installed in the connecting cavity 10, the glue extrusion cavity 15 tightly connected with the fixed cavity 14 is arranged in the outer glue extrusion head 12, the inner core sleeve head 13 is located in the fixed cavity 14, and the outlet end of the inner core sleeve head 13 penetrates through the glue extrusion cavity 15 and extends to the outer side of the extruder head 4.

The utility model discloses in, be provided with the internal thread on connecting the inboard of chamber 10, the outside of extruding head 12 is provided with and is connected the external screw thread that the chamber 10 internal thread was mutually supported outward.

The utility model discloses in, the exit end of inner core pullover 13 is provided with extension mouth 11, and extends to the outside of gluing the exit end of extruding head 12 outward with extension mouth 11.

In the present invention, the tube core 5 is inserted into the outer rubber extrusion head 12.

In the utility model discloses, the discharge end of extruder head 4 is provided with support 16.

The utility model discloses a theory of operation does: firstly, rubber material in a molten state enters the extruder barrel 3 from the rubber inlet 2 and provides electric support for the driving motor 1 through an external power supply, so as to drive the inside of the speed change gear box 8 to rotate, and simultaneously drive the rotating shaft 6 to rotate, the rubber material is conveyed and stirred through the spiral stirring blade 7 in the rotating process of the rotating shaft 6, and is extruded into the extruder head 4 from the mutual communication between the discharge end of the extruder barrel 3 and the connecting port 9, and then enters the inside of the rubber extrusion cavity 15 in the gap between the inner core sleeve head 13 and the outer rubber extrusion head 12, and the pipe core 5 is extruded by penetrating the pipe core 5 from the inside of the inner core sleeve head 13, and in the extruding process, the pipe core can extend to the outer side of the outlet end of the outer rubber extrusion head 12 through the lengthening nozzle 11 arranged at the outlet end of the inner core sleeve head 13, so that the mouth part of the inner core sleeve head 13 can be lengthened, the formed rubber tube can be supported in the extruding process, the rubber tube is prevented from falling down due to gravity, and therefore the tube core 5 is supported to a certain extent, the tube core 5 and the formed rubber tube are enabled to be kept horizontal (namely completely vertical to an extruder) in a short time after the outer rubber extrusion head 12 passes through, so that the gap between the outer rubber extrusion head 12 and the inner core sleeve head 13 is ensured to be consistent up and down, the inner core sleeve head 13 is prevented from falling down under the influence of gravity, the gap between the outer rubber extrusion head 12 and the top of the inner core sleeve head 13 is larger, the amount of the extruded rubber is large, the gap at the bottom is smaller, the amount of the extruded rubber is small, the phenomenon of the upper thickness and the lower thickness is caused, the eccentric phenomenon of the rubber tube after extrusion is caused, and the quality of the rubber tube is influenced.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a hard core rubber tube extrusion mechanism, extrudes first (12) and inner core pullover (13) including extruding barrel (3), extruding head (4), outer gluey extrude first (12) and inner core pullover (13) all set up in the inside of extruding head (4), the output in extruding barrel (3), its characterized in that are connected in extruding head (4): a rotating shaft (6) is transversely arranged in the extruder barrel (3), a spiral stirring blade (7) is spirally wound on the outer side of the rotating shaft (6), one end of the rotating shaft (6) is connected with a speed change gear box (8), the rotating shaft (6) is fixedly connected with an output shaft of the speed change gear box (8), an input shaft of the speed change gear box (8) is connected with a driving motor (1), a glue inlet (2) is arranged on the side surface of one end, close to the speed change gear box (8), of the extruder barrel (3), the other end of the extruder barrel (3) is connected with an extruder head (4), the extruder head (4) is communicated with the extruder barrel (3) through a connecting port (9), a fixed cavity (14) and a connecting cavity (10) communicated with the fixed cavity (14) are arranged in the extruder head (4), and the fixed cavity (14) and the connecting cavity (10) are respectively communicated with two opposite sides of, the outer rubber extrusion head (12) is installed in the connecting cavity (10), the inner rubber extrusion head (12) is provided with a rubber extrusion cavity (15) which is tightly connected with the fixed cavity (14), the inner core sleeve head (13) is located in the fixed cavity (14), and the outlet end of the inner core sleeve head (13) penetrates through the rubber extrusion cavity (15) and extends to the outer side of the extrusion head (4).

2. The extrusion mechanism of a hard-core hose according to claim 1, wherein: the inner side of the connecting cavity (10) is provided with an internal thread, and the outer side of the outer rubber extrusion head (12) is provided with an external thread matched with the internal thread of the connecting cavity (10).

3. The extrusion mechanism of a hard-core hose according to claim 1, wherein: the outlet end of the inner core sleeve head (13) is provided with an elongated nozzle (11), and the elongated nozzle (11) extends to the outer side of the outlet end of the outer rubber extrusion head (12).

4. The extrusion mechanism of a hard-core hose according to claim 1, wherein: a tube core (5) is inserted in the outer glue extrusion head (12).

5. The extrusion mechanism of a hard-core hose according to claim 1, wherein: and a support (16) is arranged at the discharge end of the extruder head (4).