CN210453675U

CN210453675U - Foaming machine head of PVC extruder

Info

Publication number: CN210453675U
Application number: CN201921399775.5U
Authority: CN
Inventors: 肖建华; 王志民; 樊丽凤; 肖建队; 张增波; 高德玉; 滕泰然
Original assignee: Weihai Warner Plastic Co Ltd
Current assignee: Weihai Warner Plastic Co Ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-05-05
Anticipated expiration: 2029-08-26

Abstract

The utility model provides a PVC extruder foaming aircraft nose, it has solved among the prior art aircraft nose heating methods inhomogeneous, the technical problem of product surface roughness. The forming die is provided with a rear-area rear die, a rear-area flow die and a rear-area multi-angle die, the forming area is provided with a forming rear die, a forming multi-angle die and a forming outer die, and a rear-area transition outer die is arranged between the machine head rear area and the forming area; a rear-zone core rod is arranged in the rear-zone polygonal mold, and a rear-zone transition core rod is arranged in the rear-zone transition outer mold; the forming transition external mold is internally provided with a forming transition mold core and a heating ring, and the forming transition external mold is also provided with an oil way connector which is connected with the warm mold controller through an oil way. The utility model discloses simple structure, heating temperature are even, reach thermostatic control's purpose through warm mould controller, and it is higher to obtain the yield.

Description

Foaming machine head of PVC extruder

Technical Field

The utility model relates to a foaming equipment technical field, concretely relates to PVC extruder foaming aircraft nose.

Background

The foaming machine is also called a foam generator, and is equipment for preparing foam from an aqueous solution with a foaming agent reaching a certain concentration. The foaming agent cannot automatically become foam, and the foaming agent must be mechanically acted by a foaming machine to become foam. The foaming machine is firstly applied to foreign countries, and the original machine type adopts an impeller to rotate at high speed to make foam, so the foaming machine is also called as a foaming machine. Later, with the continuous progress of the technology, the technical content of the foaming machine is continuously improved, new machine types are continuously generated, and various different technical systems are formed. The foaming machine is used in the 50 th of the 20 th century in the earliest of China, and after the 70 th of China, the high-speed impeller foaming machine begins to appear.

In the prior art, the temperature range of a common machine head is not well controlled during production, the error is large, and when a pipe with high requirement on production temperature is produced, the pipe produced by the common machine head has irregular shape, rough surface and large error due to strict requirement on temperature, so that the production quality and efficiency of the product are influenced. And the foaming machine head of the existing extruder generally adopts the heating mode of an electric heating ring to heat the feeding and forming cavity, and the heating mode is uneven, has longer heating time and is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model discloses be exactly to heating temperature inhomogeneous among the prior art, the great technical problem of the thermostatic control degree of difficulty, provide a controllable PVC extruder foaming aircraft nose of constant temperature.

In order to solve the technical problem, the utility model is provided with a machine head rear area and a forming area, wherein the machine head rear area is provided with a rear area rear die, a rear area flow die and a rear area multi-angle die, the forming area is provided with a forming rear die, a forming multi-angle die and a forming outer die, and a rear area transition outer die is arranged between the machine head rear area and the forming area; a rear-zone core rod is arranged in the rear-zone polygonal mold, and a rear-zone transition core rod is arranged in the rear-zone transition outer mold; the forming transition outer die is arranged between the forming multi-angle die and the forming outer die, a forming transition die core and a heating ring are arranged in the forming transition outer die, and an oil way connector is further arranged on the forming transition outer die and connected with the temperature die controller through an oil way.

Preferably, the warm die controller is provided with a machine head body oil inlet, a mandrel oil inlet, a machine head body oil return port and a mandrel oil return port.

The rear-zone multi-angle die is internally provided with a plurality of cavity runners, the width of the middle of each cavity runner is large, and the cavity runners gradually shrink towards two sides.

The utility model has the advantages of simpler and more convenient heating mode, more sensitive temperature control, shorter heating time, resource saving, more uniform and stable heating and safer operation, and can accurately control the heating temperature through the oil temperature controller; due to the action of the oil temperature controller, the produced product has fine surface, small error and higher quality.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic sectional view of the present invention in the direction of a-a in fig. 1.

The symbols in the figures indicate:

1. back-zone back-mould; 2. dividing a flow mould; 3. a rear area multi-angle die; 4. a rear zone core rod; 5. a rear-zone transition external mold; 6. a rear zone transition core rod; 7. molding a rear mold; 8. forming a shunting cone head; 9. forming a shunting cone; 10. forming a multi-angle die; 11. forming a transition external mold; 12. forming a transition mold core; 13. a heating ring; 14. forming an outer mold; 15. an oil passage connector; 16. a warm mold controller; 161. a mold core oil return port; 162. an oil return port of the outer mold; 163. an oil inlet of the outer mold; 164. a mold core oil inlet; 17. an oil passage.

Detailed Description

The following describes in detail embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and 2, the utility model provides a foaming machine head of a PVC extruder, which is provided with a machine head back area and a forming area. The back area of the machine head is provided with a back area back die 1, a back area flow dividing die 2 and a back area polygonal die 3, the forming area is provided with a forming back die 7, a forming polygonal die 10 and a forming outer die 14, the back area of the machine head is positioned on the left side of the machine head, the forming area is positioned on the right side of the machine head, and a back area transition outer die 5 is arranged between the back area of the machine head and the forming area.

The rear zone dividing die 2 is internally provided with a splitter with a conical tip, so that the feeding of the machine head is uniform. A rear-zone core rod 4 is arranged in the rear-zone polygonal die 3, and a rear-zone transition core rod 6 is arranged in the rear-zone transition outer die 5. The rear-area multi-angle die 3 is internally provided with a plurality of cavity runners, the width of the middle of each cavity runner is large, the cavity runners are gradually reduced towards two sides, the structure is simple, and the PVC material flow is convenient to stabilize.

A forming diversion conical head 8 and a forming diversion cone 9 are arranged in the forming rear die 7, and the forming diversion conical head 8 and the forming diversion cone 9 are connected together; a forming transition outer die 11 is arranged between the forming polygonal die 10 and the forming outer die 14, and a forming transition die core 12 is arranged in the forming transition outer die 11.

A heating ring 13 is arranged in the forming transition outer die 11, heating oil ducts are arranged in the forming transition outer die 11 and the forming transition die core 12, interfaces of the heating oil ducts are led out on the outer surface of the machine head to form oil duct openings, oil duct connectors 15 are arranged at the oil duct openings on the machine head, and the oil duct connectors 15 are connected with a warm die controller 16 through the oil duct connectors 15.

The warm die controller 16 is provided with a die core oil return port 161, an outer die oil return port 162, an outer die oil inlet 163 and a die core oil inlet 164, and the outer die oil inlet 163 and the outer die oil return port 162 form a loop with a warm oil passage of the forming transition outer die 11 through an oil passage 17 and an oil passage connector 15; the core oil inlet 164 and the core oil return 162 form a loop with the heating oil passage of the heating ring through the oil passage 17 and the oil passage connector 15. According to the quality of the product and the different requirements of the appearance, the temperature of the machine head is controlled by adjusting the temperature mould controller 16, and then the products with different requirements and specifications such as the appearance are produced.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. A PVC extruder foaming machine head is provided with a machine head rear area and a forming area, wherein the machine head rear area is sequentially provided with a rear area rear die, a rear area flow die and a rear area multi-angle die; the rear-zone transition outer die is internally provided with a rear-zone transition core rod; the forming transition external mold is characterized in that a forming diversion conical head and a forming diversion cone are arranged in the forming rear mold, the forming diversion conical head and the forming diversion cone are connected together, a forming transition external mold is arranged between the forming multi-angle mold and the forming external mold, a forming transition mold core and a heating ring are arranged in the forming transition external mold, an oil way connector is further arranged on the forming transition external mold, and the oil way connector is connected with the warm mold controller through an oil way.

2. The PVC extruder foaming head of claim 1, wherein the warm die controller is provided with a head body oil inlet, a mandrel oil inlet, a head body oil return port and a mandrel oil return port.

3. The PVC extruder head of claim 1, wherein the rear multi-angle die has a plurality of cavity runners, and the cavity runners have a large width in the middle and gradually decrease toward the two sides.