CN213500711U

CN213500711U - Co-extrusion system in three-layer die

Info

Publication number: CN213500711U
Application number: CN202022351332.8U
Authority: CN
Inventors: 何海潮; 许钢浩
Original assignee: SUZHOU JWELL PRECISION MACHINERY CO Ltd
Current assignee: SUZHOU JWELL PRECISION MACHINERY CO Ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-22
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a crowded system altogether in three-layer mould. The system comprises: the device comprises a main machine flow passage, an auxiliary machine flow passage, a main machine net changer, an auxiliary machine net changer, a main machine metering pump, an auxiliary machine metering pump and a forming die; one end of the host screen changer is connected with the host, the other end of the host screen changer is connected with the forming die through a host flow passage, and the host metering pump is connected in series in the host flow passage; one end of the auxiliary machine screen changer is connected with an auxiliary machine, the other end of the auxiliary machine screen changer is connected with the forming die through an auxiliary machine flow passage, and an auxiliary machine metering pump is connected in series in the auxiliary machine flow passage; the auxiliary engine runner divides into two reposition of redundant personnel passageways through Y type reposition of redundant personnel piece: a first branch flow passage and a second branch flow passage; the forming die has three feed inlets: the first feeding hole, the second feeding hole and the third feeding hole; the main machine runner, the first sub-runner and the second sub-runner are respectively connected with the three feed inlets; the connecting pipelines of the main machine runner, the auxiliary machine runner and the first and second branch runners are all coated with heating rings. The effect of co-extrusion in the three-layer die is realized through the two extruders, and each layer is independently controlled by temperature.

Description

Co-extrusion system in three-layer die

Technical Field

The utility model relates to a production facility field is extruded to the multilayer, in particular to crowded system altogether in three-layer mould.

Background

The composite runner structure that two machines commonly used at present do three-layer coextrusion has two: one is a distributor composite runner structure, and the other is an in-mold composite runner structure. In the in-mold compounding, the materials are usually shunted to each feeding hole through the distributing block, when the process temperature difference of different materials is large, the influence of the process temperature of different materials is limited, and each multiple layer of the materials is required to have independent flow channel independent temperature control, so that the flow channel structure shunted by the distributing block of the original two machines cannot meet the requirement.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a connect three-layer intramode crowded runner and the independent control by temperature change of each layer runner crowded system altogether in three-layer with two extruders.

In order to achieve the above object, the utility model adopts the following technical scheme: a three-layer in-mold co-extrusion system connected downstream of a main machine and an auxiliary machine, the system comprising: the device comprises a main machine flow passage, an auxiliary machine flow passage, a main machine net changer, an auxiliary machine net changer, a main machine metering pump, an auxiliary machine metering pump and a forming die; one end of the host screen changer is connected with a host machine head, the other end of the host machine screen changer is connected with the forming die through the host machine flow passage, and the host machine metering pump is connected in series in the host machine flow passage; one end of the auxiliary screen changer is connected with an auxiliary machine head, the other end of the auxiliary screen changer is connected with the forming die through an auxiliary machine flow passage, and the auxiliary machine metering pump is connected in series in the auxiliary machine flow passage; the auxiliary engine runner is connected with a Y-shaped shunting block, and two shunting channels are separated from the Y-shaped shunting block: a first branch flow passage and a second branch flow passage; the forming die has three feed inlets: the first feed inlet is used for feeding the main material, and the second feed inlet and the third feed inlet are used for feeding the auxiliary material; the main machine runner is connected with the first feed port; the first shunting passage is connected with the second feeding hole; the second branch flow channel is connected with the third feed inlet; and the connecting pipelines of the main machine runner, the auxiliary machine runner, the first sub-runner and the second sub-runner are coated with heating rings.

In the above technical solution, it is further preferable that the main machine runner, the auxiliary machine runner, the first branch runner and the second branch runner have pipe bends connected by corner bends.

In the above technical solution, it is further preferable that heating rods are disposed in both the Y-shaped shunting block and the corner elbow.

In the above technical solution, it is further preferable that the heating rods on the Y-shaped shunting block and the corner elbow are independently temperature controlled by the control cabinet.

In the above technical solution, it is further preferable that the heating coils of the main runner, the auxiliary runner, the first sub-runner and the second sub-runner are independently temperature-controlled by the control cabinet.

The utility model discloses advantage for prior art is: when the material process temperature has a large difference, the effect of co-extrusion in the three-layer die is realized through the two extruders, and each layer is independently controlled in temperature.

Drawings

FIG. 1 is a general structure diagram of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

wherein: 1. a host screen changer; 2. a host metering pump; 3. a host runner; 41. heating a ring; 42. a heating rod; 5. a corner elbow; 6. an auxiliary machine screen changer; 7. an auxiliary machine metering pump; 8. an auxiliary machine runner; 81. a first shunt passage; 82. a second branch flow channel; 9. a Y-shaped shunting block; 10. forming a mold; 101. a first feed port; 102. a second feed port; 103. a third feed inlet; 104. an upper die lip; 105. a lower die lip; 106. and (4) a discharge port.

Detailed Description

To explain the technical content, structural features, achieved objects and functions of the present invention in detail, the following detailed description is made with reference to the accompanying drawings.

The utility model discloses a crowded system altogether in three-layer mould for on the plastics extrusion moulding equipment such as multilayer composite pipe or panel, the compound extrusion moulding equipment of multilayer need be equipped with two extruders and supply with the material usually, and one of them is host computer, an auxiliary engine. The host machine, the auxiliary machine, the three-layer in-mold co-extrusion system and other equipment realize PLC automatic control through the control cabinet. The utility model discloses a crowded systemic connection is crowded in three-layer mould altogether in host computer and auxiliary engine low reaches for shift forming die with the material distribution that host computer and auxiliary engine carried.

Fig. 2 is a left side view of the three-layer intramode co-extrusion system, wherein the auxiliary machine runner 8, the auxiliary machine metering pump 7, the Y-shaped splitter block 9 and the auxiliary machine screen changer 6 are not shown. Fig. 3 is a front view of a three-layer in-mold co-extrusion system, in which the main machine flow channel 3, the main machine metering pump 2, and the main machine screen changer 1 are not shown.

As shown in fig. 1, one end of a host screen changer 1 is connected with a host machine head, the other end is connected with a forming die 10 through a host machine runner 3, and a host machine metering pump 2 is connected in series in the host machine runner 3; one end of the auxiliary screen changer 6 is connected with an auxiliary machine head, the other end is connected with a forming die 10 through an auxiliary machine runner 8, and an auxiliary machine metering pump 7 is connected in series in the auxiliary machine runner 8; auxiliary engine runner 8 connects a Y type reposition of redundant personnel piece 9, divides two reposition of redundant personnel passageways from Y type reposition of redundant personnel piece 9: a first sub flow passage 81 and a second sub flow passage 82. There are three feed inlets on the forming die 10: a first feed port 101 for feeding the main material, a second feed port 102 for feeding the auxiliary material, and a third feed port 103; the forming die 10 extrudes the materials fed from the three feed inlets through the extrusion of the upper die lip 104 and the lower die lip 105, and the extruded composite board is extruded from the discharge outlet 106. The main flow channel 3 is connected to the first inlet 101, the first sub flow channel 81 is connected to the second inlet 102, and the second sub flow channel 82 is connected to the third inlet 103. The main machine runner 3, the auxiliary machine runner 8, the first branch runner 81 and the second branch runner 82 are all connected at the bent angles by corner elbows 5. Heating rods 42 are arranged in the Y-shaped flow dividing block 9 and the corner elbow 5, and heating rings 41 are coated on connecting pipelines of the main machine flow passage 3, the auxiliary machine flow passage 8, the first flow dividing passage 81 and the second flow dividing passage 82.

As shown in fig. 2, the plasticized material processed in the host machine is filtered out of particles and impurities through the host machine screen changer 1, the remaining material is pumped into the host machine flow channel 3 by the host machine metering pump 2 connected with the host machine screen changer 1, the pipeline of the host machine flow channel 3 is wrapped by the heating ring 41, the pipeline turning round in the host machine flow channel 3 is connected by the corner elbow 5, the heating rod 42 is installed in the corner elbow 5, and the heating ring 41 and the heating rod 42 ensure that the material is in a fluid state. The main machine runner 3 is connected with a first feeding hole 101 of the forming die 10, and the material enters the forming die 10 from the first feeding hole 101 through the main machine runner 3.

As shown in fig. 3, another plasticized material processed in the auxiliary machine filters particles and impurities through an auxiliary machine screen changer 6, the filtered material is pumped to an auxiliary machine flow passage 8 through an auxiliary machine metering pump 7, and the auxiliary machine flow passage 8 sends the material into two flow passages through a Y-shaped splitter block 9 respectively: the first sub-runner 81 is connected with the second feed inlet 102 of the forming die 10, and the second sub-runner 82 is connected with the third feed inlet 103 of the forming die 10, and the first sub-runner 81 is connected with the second feed inlet 102 of the forming die 10 to feed the material into the forming die 10. The auxiliary flow passage 8, the first branch flow passage 81 and the second branch flow passage 82 are wrapped by heating rings 41, and the turning pipes are connected by corner elbows 5.

A heating rod 42 is arranged in the Y-shaped shunting block 9 in the auxiliary flow channel 8. Heating rods 42 are arranged in corner elbows 5 in the main machine flow channel 3, the auxiliary machine flow channel 8, the first sub-flow channel 81 and the second sub-flow channel 82 to ensure that the materials are in a fluid state.

After entering the forming die 10 from the three feed inlets, the material is extruded into a composite board by the upper die lip 104 and the lower die lip 105, and the composite board is extruded out of the forming die 10 from the discharge outlet 106.

The utility model discloses a Y type divides the stream block 9 to make two extruders divide out three-layer material pipeline, through the heating element of connection control cabinet on the pipeline: the heating rod 42 and the heating ring 41 realize independent temperature control of each pipeline.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A three-layer in-mold co-extrusion system, comprising: the device comprises a main machine flow passage (3), an auxiliary machine flow passage (8), a main machine net changer (1), an auxiliary machine net changer (6), a main machine metering pump (2), an auxiliary machine metering pump (7) and a forming die (10); one end of the host screen changer (1) is connected with a host machine head, the other end of the host machine screen changer is connected with the forming die (10) through the host machine flow passage (3), and the host machine metering pump (2) is connected in series in the host machine flow passage (3); one end of the auxiliary screen changer (6) is connected with an auxiliary machine head, the other end of the auxiliary screen changer is connected with the forming die (10) through the auxiliary machine runner (8), and the auxiliary machine metering pump (7) is connected in series in the auxiliary machine runner (8); auxiliary engine runner (8) are connected a Y type and are shunted piece (9), follow Y type shunts piece (9) and divides two reposition of redundant personnel passageways: a first branch flow passage (81) and a second branch flow passage (82); the forming die (10) is provided with three feed inlets: a first feeding hole (101) for feeding the main material, a second feeding hole (102) for feeding the auxiliary material and a third feeding hole (103); the main machine runner (3) is connected with the first feeding hole (101); the first shunting passage (81) is connected with the second feeding hole (102); the second branch flow channel (82) is connected with the third feeding port (103); and the connecting pipelines of the main machine runner (3), the auxiliary machine runner (8), the first sub-runner (81) and the second sub-runner (82) are coated with heating rings (41).

2. The three-layer in-mold co-extrusion system as claimed in claim 1, wherein the main runner (3), the auxiliary runner (8), the first branch runner (81) and the second branch runner (82) are connected at their pipe bends by corner elbows (5).

3. A three-layer in-mold co-extrusion system according to claim 2, wherein heating rods (42) are arranged in the Y-shaped shunting block (9) and the corner elbow (5).

4. A three-layer in-mold co-extrusion system according to claim 3, wherein the heating rods (42) on the Y-shaped shunting block (9) and the corner elbow (5) are independently temperature controlled by a control cabinet.

5. The three-layer in-mold co-extrusion system according to claim 1, wherein the heating loops (41) of the main runner (3), the auxiliary runner (8), the first sub-runner (81) and the second sub-runner (82) are independently temperature controlled by a control cabinet.