CN211730138U - A multi-die head for twin-line extrusion - Google Patents

Abstract

The utility model discloses a multimode aircraft nose for double-line is extruded, this multimode aircraft nose includes: the extrusion device comprises an extrusion screw, a sizing material distribution system, a first runner, a second runner, a machine head body, a first die hole and a second die hole; one end of the sizing material distribution system is communicated with an extrusion screw for plasticizing molten sizing material; the other end is respectively communicated with the first flow passage and the second flow passage; the first die hole and the second die hole are respectively communicated with the first runner and the second runner correspondingly, wherein the first runner and the second runner are arranged on the machine head body. The utility model provides high extruder head's production efficiency.

Description

A multi-die head for twin-line extrusion

technical field

The utility model relates to the technical field of cable extrusion, in particular to a multi-mode die for double-wire extrusion.

Background technique

Cable extrusion is a necessary process in the production process of wires and cables. With the advancement of engineering technology, the requirements for wires and cables in different engineering sites have also increased, such as waterproofing, anti-static, etc., and the demand for wires and cables is large. Work efficiency is also required to be further improved.

The extrusion head of the power cable in the prior art generally adopts the extrusion form of a single specification and a single die. Each extrusion equipment is equipped with a head and a set of molds, and only one specification can be extruded at a time.

The scheme has the following defects: 1) the occupied space is large; 2) the production efficiency is low; 3) the energy consumption is high.

Therefore, there is an urgent need to provide a multi-die die for double-line extrusion and an extrusion method thereof to solve the technical problems in the prior art, such as large occupation of production lines, low production efficiency, and high energy consumption.

SUMMARY OF THE INVENTION

In order to solve the problems of large space occupation, low production efficiency and high energy consumption of the production line in the prior art, the utility model proposes a multi-die die for double-line extrusion.

The technical solution of the utility model for solving the above technical problems is as follows: the utility model provides a multi-die die for double-line extrusion, comprising: an extrusion screw, a rubber material distribution system, a first flow channel, a second a flow channel, a head body, a first die hole and a second die hole; one end of the rubber material distribution system is communicated with the extrusion screw for plasticizing molten rubber material; the other end is communicated with the first flow channel and the second flow channel respectively; The first mold hole and the second mold hole are respectively communicated with the first flow channel and the second flow channel, wherein the first flow channel and the second flow channel are opened on the head body.

In the above-mentioned multi-die die of the present utility model, the multi-die die further comprises: a cooling device for cooling the extrusion die; the cooling device comprises an air inlet for introducing cooling gas, an air outlet and a An annular ventilation duct of an air inlet and an air outlet, the air inlet is communicated with the cooler; the air outlet is facing the junction of the extrusion die, the first flow channel and the second flow channel; the annular ventilation duct is connected to the The cylindrical surface formed by the outer walls of the first flow channel and the second flow channel is concentric.

In the above-mentioned multi-mode die of the present invention, the rubber material distribution system and the extrusion screw are connected by flanges.

In the above-mentioned multi-mode machine head of the utility model, the flange includes a honeycomb plate and a filter screen, and a plurality of filter holes are opened on the surface of the filter screen.

In the above-mentioned multi-die die of the present invention, the multi-die die further comprises: an extrusion die and a die fixing cover fixedly connected with the extrusion die, the die fixing cover and the die body Fixed connection.

In the above-mentioned multi-die die of the present invention, the extrusion die includes: a first extrusion die and a second extrusion die corresponding to the first die hole and the second die hole respectively, the first extrusion die The ejection mold includes a mold core and a mold sleeve. The outer contour of the mold core is exactly the same as the inner contour of the mold sleeve. The first rubber channel and the second rubber channel corresponding to the channel, for the rubber material to flow through.

In the above-mentioned multi-mode machine head of the present invention, the die sleeve includes a large-diameter end and a small-diameter end, the large-diameter end and the small-diameter end are concentric cylinders, and the outer diameter of the small-diameter end is smaller than that of the large-diameter end; Fixed connection at the end of the cable core.

In the multi-mode head of the present invention, the mold core includes a front end and a rear end, the front end and the rear end are concentric cylinders, and the outer diameter of the front end is larger than the outer diameter of the rear end, and the front end is provided with threads, so The front end is connected with the mold fixing cover plate through threads.

The utility model provides a multi-die die for double-line extrusion, comprising: an extrusion screw, a rubber material distribution system, a first flow channel, a second flow channel, a head body, a first die hole and a second Mould hole; one end of the rubber material distribution system is communicated with the extrusion screw for plasticizing molten rubber material; the other end is communicated with the first flow channel and the second flow channel respectively; the first and second mold holes correspond to The first flow channel and the second flow channel are connected, wherein the first flow channel and the second flow channel are provided on the die body; the multi-die die also includes: a cooling device for cooling the extrusion die, the The cooling device includes an air inlet for introducing cooling gas, a plurality of air outlets and an annular ventilation duct connecting the air inlet and the plurality of air outlets, the air inlet is communicated with the cooling machine, and the air outlet is facing the extrusion die, the first air outlet. The confluence of the first flow channel and the second flow channel; the annular ventilation duct is concentric with the cylindrical surface formed by the outer walls of the first flow channel and the second flow channel; the rubber material distribution system and the extrusion screw pass through the flange connection; the flange includes a honeycomb plate and a filter screen, and a plurality of filter holes are opened on the surface of the filter screen.

The beneficial effects brought by the technical solutions provided by the embodiments of the present utility model are as follows: the present utility model proposes a production line for two-line production lines in view of the technical problems existing in the prior art, such as large occupation of space, low production efficiency, and high energy consumption. The extrusion multi-die head, through the design of double flow channels, realizes that the same head can extrude two specifications of products at the same time, the production efficiency is doubled, and the space occupied by the production line is reduced; The rubber material is distributed, which can improve the production efficiency of the rubber material extrusion; at the same time, a cooling device is set on the machine head to facilitate the replacement of the mold and the cleaning of the machine head.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the structural representation of a kind of multi-die head for double-line extrusion provided by the embodiment of the present invention;

FIG. 2 is a left side view of the structure of a multi-die die for double-line extrusion provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a cooling device for a multi-die die head for dual-line extrusion provided by an embodiment of the present invention;

4 is a schematic diagram of a die sleeve structure of a multi-die die head for double-line extrusion provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of a die core structure of a multi-die die head for double-line extrusion provided by an embodiment of the present invention.

Detailed ways

In order to solve the technical problems existing in the prior art, such as the production line occupies a large area, the production efficiency is low, and the energy consumption is relatively high, the utility model aims to provide a multi-die die for double-line extrusion, the core idea of which is: The design of double flow channels enables the same machine head to extrude products of two specifications at the same time, which doubles the production efficiency and reduces the space occupied by the production line; and distributes the rubber material through the rubber material distribution system, which can increase the production efficiency of the rubber material. The production efficiency of extrusion; at the same time, a cooling device is set on the head to facilitate the replacement of the mold and the cleaning of the head.

In order to make the objectives, technical solutions and advantages of the present utility model more clear, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

Example

The utility model provides a multi-mode die for double-line extrusion, as shown in FIG. 1 , the multi-die die comprises: an extrusion screw 1, a rubber material distribution system 2, a first flow channel 3, a second The runner 4, the head body 5, the first die hole 6 and the second die hole 7; one end of the rubber distribution system 2 is communicated with the extrusion screw 1 for plasticizing the molten rubber; the other end is respectively connected with the first runner 3, the first The second flow channel 4 is connected; the first mold hole 6 and the second mold hole 7 are respectively connected with the first flow channel 3 and the second flow channel 4, wherein the first flow channel 3 and the second flow channel 4 are opened in the head body 5 superior.

Specifically: the extrusion screw 1 is used to plasticize the molten rubber, and the rubber is extruded to the rubber distribution system 2; the rubber is plasticized and melted in the extrusion screw 1, which can facilitate the extrusion of the multi-die head ;

The rubber material distribution system 2 is connected with the extrusion screw 1 to distribute the rubber material to the first flow channel 3 and the second flow channel 4; the rubber material is distributed through the rubber material distribution system 2, which can improve the production of rubber material extrusion efficiency;

Wherein, the first flow channel 3 is located above the second flow channel 4 , and both the first flow channel 3 and the second flow channel 4 include parallel sections and vertical sections, and the parallel section of the first flow channel 3 and the parallel section of the second flow channel 4 The sections are parallel, and the vertical section of the first flow channel 3 and the vertical section of the second flow channel 4 are just opposite; by setting the first flow channel 3 and the second flow channel 4 parallel to each other;

The first die hole 6 that receives the rubber material conveyed by the first flow channel 3 is communicated with the first flow channel 3, and the rubber material is extruded to the cable core;

Receive the rubber material conveyed by the second flow channel 4 , and extrude the rubber material into the second die hole 7 of the cable core to communicate with the second flow channel 4 . The first mold hole 6 is located above the second mold hole 7 , and the first mold hole 6 is located parallel to the second mold hole 7 . The utility model utilizes the same machine head to extrude products of two specifications at the same time, the production efficiency is doubled, and the large space occupied by the production line is reduced at the same time.

Further, it can also be seen from Figure 1 that the multi-mode head also includes:

The mold fixing cover 9 is fixedly connected with the head body 5 . Preferably, the mold fixing cover 9 and the head body 5 are fixedly connected by several bolts. Specifically, the mold fixing cover 9 is provided with several threaded holes, and several bolts pass through the corresponding several threaded holes to realize the mold fixing cover. 9 Fixed connection to the head body 5.

Further, the rubber material distribution system 2 is connected with the extrusion screw 1 through the flange 10 . Specifically: the flange 10 includes a honeycomb board 101 and a filter screen 102, the honeycomb board 101 is used to make the rubber material uniform; the filter screen 102 is provided with a number of filter holes for filtering out large particles of rubber material, so that the particle size of the rubber material is more uniform. Small, so that the technical effect of reducing the energy consumption of the multi-mode head can be achieved.

Further, it can be seen from FIG. 1 that the multi-mode head further includes a cooling device 11 for cooling the first flow channel 3 and the second flow channel 4 .

Further, as shown in FIG. 2 , the diameter of the mold fixing cover 9 is smaller than the diameter of the die body 5 , and the first die holes 6 and the second die holes 7 are symmetrically distributed on both sides of the central axis of the die body 5 .

Further, as shown in FIG. 3 , the cooling device 11 includes an air inlet 111, a plurality of air outlets 112 and an annular ventilation duct 113 connecting the air inlet 111 and the air outlet 112, and the air inlet 111 is communicated with the cooler for introducing cooling gas; Several air outlets 112 are facing the first flow channel 3 and the second flow channel 4 ; the annular ventilation duct 113 is concentric with the cylindrical surface formed by the outer walls of the first flow channel 3 and the second flow channel 4 . Specifically: a plurality of air outlets 112 communicate with the annular ventilation duct 113, and the plurality of air outlets 11 are evenly distributed along the circumferential direction of the annular ventilation duct 113. In one embodiment of the present invention, the number of air outlets 112 is 6 . The first flow channel 3 and the second flow channel 4 are cooled through the several air outlets 112, which can improve the molding speed of the rubber compound and further improve the production efficiency. The die head is cleaned.

Further, the multi-die head also includes an extrusion die (not shown in the figure) connected with the die fixing cover 9, wherein the extrusion die includes: corresponding to the first die hole 6 and the second die hole 7 respectively The first extrusion die and the second extrusion die, wherein, as shown in FIG. 4 , the first extrusion die includes a die core 811 and a die sleeve 812, specifically, the die sleeve 812 includes a large diameter end 8121 and a small diameter end 8122, The large diameter end 8121 and the small diameter end 8122 are concentric cylinders, and the outer diameter of the small diameter end 8122 is smaller than the outer diameter of the large diameter end 8121; the small diameter end 8122 is fixedly connected to the cable core.

Specifically, as shown in FIG. 5, the mold core 811 includes a front end 8111 and a rear end 8112, the front end 8111 and the rear end 8112 are concentric cylinders, and the outer diameter of the front end 8111 is greater than the outer diameter of the rear end 18112, and the front end 8111 is provided with threads, The front end 8111 is connected with the mold fixing cover plate 9 through threads.

It should be noted that the outer contour of the mold core 811 and the inner contour of the mold sleeve 812 are exactly the same. The mold core 811 is located inside the mold sleeve 812 and is used to form the first glue corresponding to the first flow channel 3 and the second flow channel 2 respectively. channel and the second rubber channel for the rubber material to flow through. The glue can reach the cable core through the first glue channel and the second glue channel.

Further, the multi-mode die head also includes: a rubber material sensor arranged on the cable core, which is connected in communication with the rubber material distribution system 2 for real-time monitoring of the rubber material extrusion speed and rubber material extrusion diameter, and will monitor the The data is transmitted to the rubber material distribution system 2 for the rubber material distribution system 2 to adjust the rubber material distribution. The rubber material distribution between the two molds is controlled by the rubber material distribution system 2, and the feedback data of the system can be monitored online; the amount of rubber material and the distribution amount can be adjusted in time, further reducing the energy consumption of the multi-die head and improving the production efficiency .

The utility model provides a multi-die machine head for double-line extrusion. By designing double flow channels, the same machine head can extrude products of two specifications at the same time, the production efficiency is doubled, and the production line is reduced. Occupy space; in addition, the rubber material is distributed through the rubber material distribution system, which can improve the production efficiency of rubber material extrusion; at the same time, a cooling device is set on the machine head to facilitate the replacement of the mold and the cleaning of the machine head.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (9)

1. A multi-die head for twin-strand extrusion, comprising: the rubber material distribution device comprises an extrusion screw (1), a rubber material distribution system (2), a first flow channel (3), a second flow channel (4), a machine head body (5), a first die hole (6) and a second die hole (7); one end of the sizing material distribution system (2) is communicated with the extrusion screw (1); the other end is respectively communicated with the first flow passage (3) and the second flow passage (4); the first die hole (6) and the second die hole (7) are respectively communicated with the first runner (3) and the second runner (4) correspondingly, wherein the first runner (3) and the second runner (4) are arranged on the machine head body (5).

2. The multi-die handpiece of claim 1, further comprising:

the cooling device (11) is used for cooling the extrusion die, the cooling device (11) comprises an air inlet (111) for introducing cooling gas, a plurality of air outlets (112) and an annular ventilating duct (113) for connecting the air inlet (111) and the air outlets (112), the air inlet (111) is communicated with the cooling machine, and the air outlets (112) are opposite to the junction of the extrusion die, the first flow channel (3) and the second flow channel (4); the annular ventilating pipeline (113) is concentric with a cylindrical surface enclosed by the outer walls of the first flow channel (3) and the second flow channel (4).

3. Multimode head according to claim 2, characterized in that said glue distribution system (2) is connected to said extrusion screw (1) by means of a flange (10).

4. The multiple die head as claimed in claim 3, wherein said flange (10) comprises a honeycomb plate (101) and a filter screen (102), and a plurality of filtering holes are formed on the surface of said filter screen (102).

5. The multiple die head as claimed in claim 2, further comprising a die fixing cover plate (9), said extrusion die being fixedly connected with said die fixing cover plate (9), said die fixing cover plate (9) being fixedly connected with said head body (5).

6. The multi-die head according to claim 5, wherein said extrusion die comprises:

the first extrusion die and the second extrusion die respectively correspond to the first die hole (6) and the second die hole (7), the first extrusion die comprises a die core (811) and a die sleeve (812), the external contour of the die core (811) is completely consistent with the internal contour of the die sleeve (812), and the die core (811) is positioned inside the die sleeve (812) and used for forming a first rubber channel and a second rubber channel respectively corresponding to the first runner (3) and the second runner (4) and allowing rubber to flow through.

7. The multiple die head as in claim 6, wherein said die sleeve (812) comprises a major diameter end (8121) and a minor diameter end (8122), said major diameter end (8121) and minor diameter end (8122) being concentric cylinders, and the minor diameter end (8122) having an outer diameter smaller than the major diameter end (8121); and the small-diameter end (8122) is fixedly connected with the cable core.

8. The multiple die head as claimed in claim 7, characterized in that said die core (811) comprises a front end (8111) and a rear end (8112), said front end (8111) and rear end (8112) being concentric cylinders, and the outer diameter of the front end (8111) being greater than the outer diameter of the rear end (8112), said front end (8111) being provided with a thread, said front end (8111) being connected to said die holding cover plate (9) by means of a thread.

9. A multi-die head for twin-strand extrusion, comprising: the rubber material distribution device comprises an extrusion screw (1), a rubber material distribution system (2), a first flow channel (3), a second flow channel (4), a machine head body (5), a first die hole (6) and a second die hole (7); one end of the sizing material distribution system (2) is communicated with an extrusion screw (1) for plasticizing molten sizing material; the other end is respectively communicated with the first flow passage (3) and the second flow passage (4); the first die hole (6) and the second die hole (7) are respectively and correspondingly communicated with the first runner (3) and the second runner (4), wherein the first runner (3) and the second runner (4) are arranged on the machine head body (5); the multi-die handpiece further includes: the cooling device (11) is used for cooling the extrusion die, the cooling device (11) comprises an air inlet (111) for introducing cooling gas, a plurality of air outlets (112) and an annular ventilating duct (113) for connecting the air inlet (111) and the air outlets (112), the air inlet (111) is communicated with the cooling machine, and the air outlets (112) are opposite to the junction of the extrusion die, the first flow channel (3) and the second flow channel (4); the annular ventilating pipeline (113) is concentric with a cylindrical surface formed by enclosing the outer walls of the first flow channel (3) and the second flow channel (4); the sizing material distribution system (2) is connected with the extrusion screw (1) through a flange (10); the flange (10) comprises a honeycomb plate (101) and a filter screen (102), and a plurality of filter holes are formed in the surface of the filter screen (102).

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