Connecting device for static mixer and mold in extrusion foaming equipment

Abstract

The utility model relates to a connecting device for a static mixer and a die in extrusion foaming equipment. The connecting device comprises an outer ring flange plate and an inner ring flange plate, a protrusion is arranged on one side of the inner wall of the inner ring flange entity, one side of the protrusion is installed towards the mold side, and the inner ring flange entity part is fixedly connected with the mold. The inner ring flange plate is sleeved with the outer ring flange plate, the outer ring flange plate is detachably connected with the inner ring flange plate, the detachable connection is non-fastening connection, and the outer ring flange plate can rotate relative to the inner ring flange plate; the solid part of the outer ring flange is fixedly connected with the static mixer. The connecting device has the beneficial effects that the connecting device can be used as a connecting device of a static mixer and a mold in foaming equipment; the thickness deviation of an uncooled foam product which is immediately foamed and formed at the horizontal position can be avoided, and the plate quality is ensured. In addition, the connecting device is small in size and beneficial to installation due to the fact that the inner ring flange plate and the outer ring flange plate are connected in a sleeved mode.

Description

Technical Field

[0001] The utility model belongs to the field of plastic machinery, and particularly relates to a connecting device between a static mixer and a mold in an extrusion foaming device. Background Art

[0002] At present, most of the connecting flanges between the static mixer and the mold adopt a snap - type connection method, that is, two connecting flanges are spliced together, and the outer ring of the flange is fixed by a metal cover. The advantage of this connection method is that the mold part can be rotated independently, but the disadvantage is that it is large in size and not conducive to installation.

[0003] During the installation process of the mold in the extrusion foaming line, after the static mixer and the mold are connected and installed together through the flange, the mold cannot rotate, that is, the mold cannot be adjusted in the horizontal direction. This results in a deviation in the thickness of the uncooled foam products that are immediately foamed and formed when coming out of the mold in the horizontal position, so there are quality problems in the produced foam product plates. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a connecting device between a static mixer and a mold in an extrusion foaming device.

[0005] This connecting device between the static mixer and the mold in the extrusion foaming device is provided with a supporting static mixer and a mold. The connecting device includes: an outer - ring flange and an inner - ring flange;

[0006] The middle part of the inner - ring flange is a flow channel, and the remaining part of the inner - ring flange is the entity of the inner - ring flange. A convex part is arranged along one side of the inner wall of the inner - ring flange entity, and the side of the convex part faces the mold side for installation. The inner - ring flange entity part is fixedly connected to the mold, and the convex part is used to protect the outer wall of the mold;

[0007] The outer - ring flange is hollowed out in the middle, and the hollowed - out middle part is the accommodating space for the inner - ring flange. The inner - ring flange is sleeved inside the outer - ring flange. The outer - ring flange and the inner - ring flange are detachably connected, and the detachable connection is a non - fastening connection. The outer - ring flange can rotate relative to the inner - ring flange, enabling the mold to be adjusted in the horizontal direction; the non - hollowed - out part of the outer - ring flange is the entity of the outer - ring flange, and the entity part of the outer - ring flange is fixedly connected to the static mixer.

[0008] Preferably, the inner wall of the outer - ring flange is provided with threads, and the outer wall of the inner - ring flange is provided with threads matching the threads of the outer - ring flange. The outer - ring flange and the inner - ring flange are non - tightly screwed; a plurality of fixing holes B are evenly distributed on the entity of the inner - ring flange, and the inner - ring flange is screwed to the mold by screws passing through the fixing holes B; a plurality of fixing holes A are evenly distributed on the entity of the outer - ring flange, and the outer - ring flange is screwed to the static mixer by screws passing through the fixing holes A.

[0009] Preferably, annular grooves A are dug on both the upper and lower sides of the outer wall of the outer ring flange, and a sealing ring B for filling and sealing is arranged in the annular groove A; annular grooves B are dug on both the upper and lower sides of the inner wall of the inner ring flange, and a sealing ring A for filling and sealing is arranged in the annular groove B; both the sealing ring A and the sealing ring B are used to improve the sealing performance of the connecting device when connecting the static mixer and the mold, and prevent the extruded foaming material from leaking out.

[0010] The beneficial effects of the present utility model are:

[0011] The connecting device of the present utility model includes: an outer ring flange and an inner ring flange; a protrusion is arranged along one side of the inner wall of the inner ring flange entity, and one side of the protrusion faces the mold side for installation, and the inner ring flange entity part is fixedly connected to the mold, and the protrusion is used to protect the outer wall of the mold; the inner ring flange is sleeved inside the outer ring flange, and the outer ring flange and the inner ring flange are detachably connected, and the detachable connection is a non-fastening connection, and the outer ring flange can rotate relative to the inner ring flange, so that the mold can be adjusted in the horizontal direction; the entity part of the outer ring flange is fixedly connected to the static mixer.

[0012] The present utility model can be used as a connecting device for a static mixer and a mold in a foaming device; it can avoid the deviation of the thickness of the uncooled foam product immediately foamed and formed in the horizontal position, and ensure the quality of the plate. And the connecting device of the present utility model has a small volume through the sleeving of the inner ring flange and the outer ring flange, which is beneficial to installation.

[0013] In addition, annular grooves A are dug on both the upper and lower sides of the outer wall of the outer ring flange of the present utility model, and a sealing ring B for filling and sealing is arranged in the annular groove A, and annular grooves B are also dug on both the upper and lower sides of the inner wall of the outer ring flange, and a sealing ring A for filling and sealing is arranged in the annular groove B. Both the sealing ring A and the sealing ring B are used to improve the sealing performance of the connecting device when connecting the static mixer and the mold, and prevent the extruded foaming material from leaking out. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the outer ring flange;

[0015] Figure 2 It is a schematic structural diagram of the inner ring flange;

[0016] Figure 3 It is a side sectional view of the outer ring flange;

[0017] Figure 4 It is a side sectional view of the structure of the first inner ring flange;

[0018] Figure 5 It is a side sectional view of the structure of the second inner ring flange.

[0019] Description of the reference numerals: outer ring flange 1, fixing hole A 2, inner ring flange 3, fixing hole B 4, flow channel 5, protrusion 6, sealing ring A 7, sealing ring B 8. Detailed implementation manners

[0020] The following further describes the present utility model in conjunction with embodiments. The description of the following embodiments is only used to help understand the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

[0021] Embodiment 1

[0022] As Figures 1 to 4 shown, a connecting device between a static mixer and a mold in an extrusion foaming device is provided with a supporting static mixer and a mold. The connecting device includes: an outer ring flange 1 and an inner ring flange 3;

[0023] The middle part of the inner ring flange 3 is a flow channel 5, and the remaining part of the inner ring flange 3 is the entity of the inner ring flange. A protrusion 6 is provided along one side of the inner wall of the inner ring flange entity. One side of the protrusion 6 faces the mold side for installation. A plurality of fixing holes B 4 are evenly distributed on the entity of the inner ring flange 3, and the inner ring flange 3 is screwed to the mold by screws passing through the fixing holes B 4; the protrusion is used to protect the outer wall of the mold.

[0024] The outer ring flange 1 has a hollowed middle part, and the hollowed middle part is the accommodating space for the inner ring flange 3. The inner ring flange 3 is sleeved inside the outer ring flange 1. Threads are provided on the inner wall of the outer ring flange 1, and threads matching the threads of the outer ring flange 1 are provided on the outer wall of the inner ring flange 3. The outer ring flange 1 and the inner ring flange 3 are non-fastened and screwed, and the outer ring flange 1 can rotate relative to the inner ring flange 3, enabling the mold to be adjusted in the horizontal direction; the non-hollowed part of the outer ring flange 1 is the entity of the outer ring flange. A plurality of fixing holes A 2 are evenly distributed on the entity of the outer ring flange 1, and the outer ring flange 1 is screwed to the static mixer by screws passing through the fixing holes A 2.

[0025] Embodiment 2

[0026] As Figure 5 shown, on the basis of Embodiment 1, for the connecting device between the static mixer and the mold in the extrusion foaming device of this embodiment, annular grooves A are dug on both the upper and lower sides of the outer wall of the outer ring flange 1, and a sealing ring B 8 for filling and sealing is provided in the annular grooves A; annular grooves B are dug on both the upper and lower sides of the inner wall of the inner ring flange 3, and a sealing ring A 7 for filling and sealing is provided in the annular grooves B; both the sealing ring A and the sealing ring B are used to improve the sealing performance of the connecting device when connecting the static mixer and the mold, and prevent the extrusion foaming material from leaking out.

Claims

1. A device for connecting a static mixer and a mold in an extrusion foaming device, comprising a matching static mixer and a mold, characterized in that: The connecting device comprises: an outer ring flange (1) and an inner ring flange (3); The middle part of the inner ring flange (3) is a flow channel (5), and the remaining part of the inner ring flange (3) is a solid body of the inner ring flange. A protrusion (6) is provided along one side of the inner wall of the solid body of the inner ring flange. One side of the protrusion (6) is installed toward the mold side, and the solid part of the inner ring flange is fixedly connected to the mold. The outer ring flange (1) is hollowed out in the middle, and the hollowed-out middle is a housing space for the inner ring flange (3). The inner ring flange (3) is sleeved in the outer ring flange (1), and the outer ring flange (1) and the inner ring flange (3) are detachably connected, and the detachable connection is a non-tight connection. The outer ring flange (1) can rotate relative to the inner ring flange (3); the non-hollowed-out part of the outer ring flange (1) is the entity of the outer ring flange, and the entity part of the outer ring flange is fixedly connected to the static mixer.

2. The device for connecting a static mixer and a mold in an extrusion foaming device according to claim 1, characterized in that: The outer ring flange (1) has a thread on its inner wall, the inner ring flange (3) has a thread on its outer wall matching the thread of the outer ring flange (1), and the outer ring flange (1) and the inner ring flange (3) are screwed together; a plurality of fixing holes B (4) are evenly distributed on the body of the inner ring flange (3), and the inner ring flange (3) is screwed together with the mold in a non-tightened manner by screws passing through the fixing holes B (4); a plurality of fixing holes A (2) are evenly distributed on the body of the outer ring flange (1), and the outer ring flange (1) is screwed together with the static mixer by screws passing through the fixing holes A (2).

3. The connecting device between the static mixer and the mold in the extrusion foaming equipment according to claim 1 or 2, characterized in that: The outer ring flange (1) has an annular groove A excavated on both upper and lower sides of its outer wall, and a sealing ring B (8) for filling and sealing is arranged in the annular groove A; the inner ring flange (3) has an annular groove B excavated on both upper and lower sides of its inner wall, and a sealing ring A (7) for filling and sealing is arranged in the annular groove B.

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