CN219235941U

CN219235941U - Polyurethane foaming device

Info

Publication number: CN219235941U
Application number: CN202320169217.XU
Authority: CN
Inventors: 沈浙波; 沈小波; 史航东
Original assignee: Yunnan Tianzhixing Energy Saving Building Materials Co ltd
Current assignee: Yunnan Tianzhixing Energy Saving Building Materials Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-06-23
Anticipated expiration: 2033-02-09

Abstract

The utility model belongs to the field of polyurethane foaming equipment, and particularly relates to a polyurethane foaming device, which comprises: the foaming cylinder is used for storing polyurethane raw materials; the rotating shaft is rotationally connected in the foaming cylinder. According to the utility model, the rotating shaft is driven to rotate by the starting motor, the stirring sheet and the stirring shaft are driven to rotate by the rotating shaft, the raw material at the bottom of the foaming cylinder can be conveyed to the upper part by the stirring sheet, then the raw material can be transversely stirred by the stirring shaft, the raw material can be conveyed into the flow guide cylinder by the drainage part arranged on the flow guide cylinder while being transversely stirred, and the raw material flow with large strands is dispersed into a plurality of trickles through the arranged flow guide holes, and after the trickles flow out of the flow guide cylinder, the trickles can downwards flow into the bottom of the foaming cylinder again under the action of the flow guide cylinder and the gravity, so that the raw material can flow and be mixed in the vertical direction in the foaming cylinder while being transversely stirred.

Description

Polyurethane foaming device

Technical Field

The utility model relates to the technical field of polyurethane foaming equipment, in particular to a polyurethane foaming device.

Background

The polyurethane foaming device is special equipment for filling and foaming polyurethane foam plastic, and can be used for processing automobile interior trim, heat-insulating wall spraying, heat-insulating pipeline manufacturing and bicycle and motorcycle saddle sponge. The quality of the polyurethane product is obviously related to the mixing uniformity of the polyurethane A material and the polyurethane B material, the mixed gas amount in the polyurethane raw material and the distribution condition of the gas in the polyurethane raw material. The stirring rod is adopted to stir the polyurethane raw materials in the mixing tank in a transverse rotating and stirring mode, so that the materials on the same layer are still mixed with the materials from top to bottom after stirring, and the layering and uneven mixing of the materials are easily caused.

Disclosure of Invention

The utility model aims to provide a polyurethane foaming device which can effectively mix polyurethane raw materials, avoid layering and reduce the occurrence of uneven mixing.

The technical scheme adopted by the utility model is as follows:

a polyurethane foaming apparatus comprising:

the foaming cylinder is rotatably provided with a rotating shaft, and the rotating shaft is provided with a stirring sheet; the stirring shaft is fixedly connected to the rotating shaft and is transversely arranged; and the guide barrels are linearly distributed along the axis direction of the stirring shaft, and the guide barrels and the stirring shaft are arranged in a staggered manner.

The present utility model may be further configured in a preferred example to: the top of foaming section of thick bamboo is provided with the feeder hopper, and the top of feeder hopper can be dismantled and be provided with the apron.

The present utility model may be further configured in a preferred example to: the bottom of the foaming cylinder is fixedly connected with a blanking pipe, and the blanking pipe and the foaming cylinder are communicated with each other.

The present utility model may be further configured in a preferred example to: the top fixedly connected with motor of pivot, and motor fixed connection is at the top of foaming section of thick bamboo.

The present utility model may be further configured in a preferred example to: the stirring blade is in a spiral shape, and the spiral radius of the stirring blade is gradually reduced from top to bottom.

The present utility model may be further configured in a preferred example to: the number of the stirring shafts is eight, and every four stirring shafts are matched with one another for use.

The present utility model may be further configured in a preferred example to: the end part of the guide cylinder is connected with a drainage part, and a plurality of drainage holes are formed in the guide cylinder.

The present utility model may be further configured in a preferred example to: the length of the stirring shaft is smaller than the inner diameter of the foaming cylinder.

The present utility model may be further configured in a preferred example to: the stagger angle between the guide cylinder and the stirring shaft is 60-90 degrees.

The technical scheme of the utility model has the following beneficial technical effects:

according to the utility model, the stirring blade and the stirring shaft are driven to rotate through the rotation of the rotating shaft, the raw material at the bottom of the foaming cylinder can be conveyed to the upper part by the stirring blade, then the raw material can be transversely stirred by the stirring shaft, the raw material can be conveyed into the flow guide cylinder by the drainage part arranged on the flow guide cylinder while being transversely stirred, and the raw material flows are dispersed into a plurality of trickles through the large flow guide holes, so that the contact area between the raw material and the gas as well as the foaming agent is conveniently enlarged, the mixing uniformity is improved, and after the trickles flow out from the flow guide cylinder, the trickles downwards flow into the bottom of the foaming cylinder under the action of the flow guide cylinder and the gravity, so that the raw material can flow and be mixed in the vertical direction in the foaming cylinder while being transversely stirred, the mixing effect of the raw material is further improved, and the layering phenomenon of the raw material is avoided from being mixed on the same layer for a long time.

Drawings

FIG. 1 is a schematic perspective view of the overall structure of the present utility model;

FIG. 2 is a schematic perspective view of a stirring blade structure of the present utility model;

fig. 3 is a schematic perspective view of a guide cylinder structure of the present utility model.

Reference numerals:

1. a foaming cylinder; 2. a rotating shaft; 3. stirring sheets; 4. a stirring shaft; 5. a guide cylinder; 51. a drainage part; 52. a deflector aperture; 6. a motor; 7. a feed hopper; 8. and (5) blanking pipes.

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments in this disclosure without inventive faculty, are intended to fall within the scope of this disclosure. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

A polyurethane foaming apparatus according to some embodiments of the present utility model is described below with reference to the accompanying drawings.

Referring to fig. 1, the polyurethane foaming device provided by the present utility model includes:

the foaming cylinder 1 is used for storing polyurethane raw materials, and a connecting valve used for conveying gas is connected to the side wall of the foaming cylinder 1; the rotating shaft 2 is rotationally connected in the foaming barrel 1, the top end of the rotating shaft 2 is fixedly connected with the motor 6, the motor 6 is fixedly connected to the top of the foaming barrel 1, and the motor 6 is utilized to provide a power source for the rotating shaft 2; the stirring sheet 3 is fixedly connected to the rotating shaft 2, the whole stirring sheet 3 is spiral, the spiral radius of the stirring sheet 3 is gradually reduced from top to bottom, and the polyurethane raw material and the foaming agent at the bottom of the foaming cylinder 1 can be driven to flow upwards by the aid of the stirring sheet 3; the stirring shaft 4 is fixedly connected to the rotating shaft 2, and the length of the stirring shaft 4 is smaller than the inner diameter of the foaming cylinder 1 and is used for transversely stirring polyurethane raw materials; and the guide cylinder 5 is connected to the stirring shaft 4 and is used for enabling polyurethane raw materials to generate a plurality of thin flows during transverse stirring, and conveying the raw materials on the upper part to the lower part of the foaming cylinder 1, and the whole shape of the guide cylinder 5 is L-shaped.

It should be noted that, the top of foaming section of thick bamboo 1 is provided with feeder hopper 7, and the top of feeder hopper 7 can be dismantled and be provided with the apron, utilizes feeder hopper 7, conveniently carries out the material loading to polyurethane raw materials, utilizes the apron of setting, is convenient for protect feeder hopper 7, avoids external impurity to fall into.

Further, the bottom fixedly connected with unloading pipe 8 of foaming section of thick bamboo 1, link up each other between unloading pipe 8 and the foaming section of thick bamboo 1, utilize unloading pipe 8, can carry out the unloading to the polyurethane of misce bene.

On the other hand, as shown in fig. 2, the number of stirring shafts 4 is eight, each four stirring shafts 4 are matched with one group, the stirring shafts 4 are arranged into an upper group and a lower group, each stirring shaft 4 is provided with three guide cylinders 5, and the whole length of the guide cylinder 5 positioned in the upper group is longer than that of the guide cylinder 5 positioned in the lower group, so that generated trickles are staggered during stirring.

Further, as shown in fig. 3, the end portion of the guide cylinder 5 is connected with a drainage portion 51, a plurality of drainage holes 52 are formed in the guide cylinder 5, the whole drainage portion 51 is in a horn shape, the stirred raw materials are conveniently guided into the guide cylinder 5, the formed fluid can be dispersed into a plurality of thin flows through the arranged drainage holes 52, the stirring uniformity is improved, the guide cylinder 5 and the stirring shaft 4 are arranged in a staggered mode, the staggered angle is 60-90 degrees, and the raw materials are not influenced to enter the guide cylinder 5 in the staggered mode.

Specifically, when the polyurethane raw materials need to be mixed, firstly, throw the raw materials into the foaming cylinder 1 through the feed hopper 7, then the motor 6 is started to drive the rotating shaft 2 to rotate, when the rotating shaft 2 rotates, the stirring piece 3 and the stirring shaft 4 are driven to rotate along with the raw materials, firstly, the stirring piece 3 can convey the raw materials at the bottom of the foaming cylinder 1 to the upper part, then the stirring shaft 4 can transversely stir the raw materials, the raw materials are conveyed into the foaming cylinder 5 through the drainage part 51 arranged on the flow guide cylinder 5 while transversely stirring, and the raw materials are dispersed into a plurality of trickles through the large-strand raw material flow through the arranged flow guide holes 52, so that the contact area between the raw materials and the gas and the foaming agent is conveniently enlarged, the mixing uniformity is improved, and after the trickles flow out from the flow guide cylinder 5, the trickles flow downwards into the bottom of the foaming cylinder 1 under the action of the gravity, so that the trickles reciprocate, the raw materials flow and the mixing effect of the raw materials in the vertical direction in the foaming cylinder 1 is further improved, and the layering phenomenon of the raw materials is avoided to be mixed on the same layer for a long time.

In the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood that when an element is referred to as being "mounted," "secured" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A polyurethane foaming device, comprising:

a rotating shaft (2) is rotatably arranged in the foaming cylinder (1), and a stirring sheet (3) is arranged on the rotating shaft (2);

the stirring shaft (4) is fixedly connected to the rotating shaft (2), and the stirring shaft (4) is transversely arranged;

guide barrels (5), be provided with a plurality of guide barrels (5) on (mixer) shaft (4), a plurality of guide barrels (5) are and carry out linear distribution along (mixer) shaft (4) axis direction, crisscross setting between guide barrels (5) and (mixer) shaft (4).

2. A polyurethane foaming device according to claim 1, characterized in that the top of the foaming cylinder (1) is provided with a feed hopper (7), and the top of the feed hopper (7) is detachably provided with a cover plate.

3. Polyurethane foaming device according to claim 2, characterized in that the bottom of the foaming cylinder (1) is fixedly connected with a blanking pipe (8), and the blanking pipe (8) and the foaming cylinder (1) are communicated with each other.

4. A polyurethane foaming device according to claim 2 or 3, characterized in that the top end of the rotating shaft (2) is fixedly connected with a motor (6), and the motor (6) is fixedly connected to the top of the foaming cylinder (1).

5. The polyurethane foaming apparatus as claimed in claim 4, wherein the stirring sheet (3) is formed in a spiral shape as a whole, and the spiral radius of the stirring sheet (3) is gradually reduced from top to bottom.

6. A polyurethane foaming apparatus as claimed in claim 1, wherein the number of stirring shafts (4) is eight, and each four stirring shafts (4) are used in combination.

7. Polyurethane foaming device according to claim 1, characterized in that the end of the guide cylinder (5) is connected with a drainage part (51), and the inside of the guide cylinder (5) is provided with a plurality of drainage holes (52).

8. A polyurethane foaming apparatus according to claim 7 wherein the length of the stirring shaft (4) is less than the inner diameter of the foaming cylinder (1).

9. A polyurethane foaming apparatus according to claim 8 wherein the stagger angle between the guide cylinder (5) and the stirring shaft (4) is 60 ° -90 °.