CN217968015U

CN217968015U - Even mixing die head foams

Info

Publication number: CN217968015U
Application number: CN202221890447.7U
Authority: CN
Inventors: 彭国武; 李周明
Original assignee: Zhejiang Qianda Electrical Technology Co ltd
Current assignee: Zhejiang Qianda Electrical Technology Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-12-06
Anticipated expiration: 2032-07-21

Abstract

The utility model provides an even mixing die head foams, include: a molding unit; the temperature control unit for controlling the molding temperature penetrates from the lower part to the upper part of the molding unit to form backflow; and a drive unit; the molding unit includes a sealed cavity merged by a top cover assembly and a bottom cover assembly; and a rotary shearing assembly which is matched with the top cover assembly and the bottom cover assembly to form an upper gap channel and a lower gap channel for uniformly mixing materials is arranged in the sealing cavity. The center of being the wavy range to the edge through the second bellying by the rotary disk to the edge, the material can be along the diffusion of the outside out of order of second bellying to cooperating the rotatory shearing action between second bellying and first bellying and second bellying and the third bellying, making the moving direction between the material take place diversified change, thereby reached increase circulation route, very big improvement the effect of material mixing homogeneity.

Description

Even mixing die head foams

Technical Field

The utility model relates to a foaming shaping technical field especially relates to an even mixing die head foams.

Background

Foaming is commonly used for manufacturing materials such as leather, refrigerators, air conditioners and the like, and during the forming process, the foaming raw material is matched with inert gas and injected into a mold, and the gas and the raw material are fully mixed under the conditions of certain temperature and pressure to form a foaming finished product.

Chinese patent CN 110914033A discloses a molding machine for foam molding in which a heating cylinder is divided into a first stage and a second stage according to the shape of a screw. A first compression part for compressing the resin is formed in the first stage, and a decompression part for reducing the pressure of the resin and a second compression part for compressing the resin are formed in the second stage.

However, the technical scheme has the following defects:

1. this scheme adopts the mode of spiral propelling movement to stir the foaming and mixes, because spiral propelling movement process orbit is single, can not be applicable to the foaming of preparation high accuracy.

2. In the foaming and forming process, the temperature can not be controlled within a certain range, and the foaming at the preparation part is easy to solidify and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's weak point, provide an even mixing die head foams, through adopting gradually open upper fixed disk, the design of lower fixed disk and rotary disk, make and form a plurality of wave formulas outward diffusion passageway between fixed disk and the rotary disk, increase the circulation route, very big improvement the homogeneity that the material was mixed, stir the mixture through setting the rotary disk to rotatory shearing mode to the material, can carry out the intensive mixing with gas to the material that viscosity is high, in addition, the utility model discloses upper and lower region at the stirring mixture is equipped with temperature control device, can prevent to stir the shearing in-process material and appear burnt and stick with paste, avoid the mechanism to appear overheated leading to equipment life to shorten between the spare part at the operation in-process.

In order to achieve the above object, the utility model provides a following technical scheme:

a uniformly foamed mixing die comprising:

a molding unit; and

a drive unit;

the forming unit comprises a top cover assembly rotary shearing assembly and a bottom cover assembly;

the top cover assembly and the bottom cover assembly are combined to form a sealed cavity;

the rotary shearing assembly is respectively matched with the top cover assembly and the bottom cover assembly to form an upper shearing mixing channel and a lower shearing mixing channel for shearing and mixing.

As an improvement, the cap assembly comprises:

an upper cover plate;

an upper closure member;

a first circulating cavity is arranged between the upper cover plate and the upper cover sealing piece;

and a first boss is arranged at the lower part of the upper cover plate and opposite to the rotary shearing assembly.

As an improvement, the rotary shear assembly comprises:

the rotary disc, both ends all are provided with a plurality of groups and are the second bellying of annular distribution and be used for shearing stirring raw materials about the rotary disc.

As a refinement, the second convex parts are arranged in a wave form from the center to the edge of the rotating disc.

As an improvement, the bottom cap assembly comprises:

a lower cover plate; and

a lower closure member;

a third boss is arranged at the position, opposite to the rotary shearing assembly, of the upper part of the lower cover plate;

a feed inlet is formed in the side part of the lower cover plate;

the feed inlet is communicated with an upper shearing and mixing channel between the third bulge part and the second bulge part;

the upper shearing and mixing channel is communicated with the lower shearing and mixing channel between the second boss and the first boss.

As an improvement, a second circulation cavity is arranged between the lower sealing cover piece and the lower cover plate.

As an improvement, the temperature control unit for controlling the molding temperature penetrates from the lower part to the upper part of the molding unit to form a backflow;

the temperature control unit comprises:

an outer liquid inlet pipe;

an outlet liquid pipe;

the outer liquid inlet pipe enables the temperature control medium to continuously flow out along the outer liquid outlet pipe after sequentially passing through the bottom cover assembly and the top cover assembly through the outer liquid inlet pipe.

As an improvement, the side part of the outer liquid inlet pipe is connected with a first shunt pipe communicated with the driving unit;

and the side part of the liquid outlet pipe is connected with a second shunt pipe communicated with the driving unit.

As a refinement, the drive unit comprises:

a drive shaft rotationally connected to the drive mechanism;

a sleeve is sleeved outside the driving shaft and positioned at the lower part of the bottom cover assembly;

a mechanical sealing element is rotatably sleeved inside the sleeve and outside the driving shaft;

and a third circulation cavity is arranged between the mechanical sealing element and the sleeve.

As an improvement, the driving shaft is connected with the rotary shearing assembly after passing through the mechanical sealing element and penetrating through the bottom cover assembly.

The beneficial effects of the utility model reside in that:

the utility model discloses a mode that the rotary disk set to rotatory shearing stirs the material and mixes, can carry out intensive mixing's effect to material and gas that viscosity is high.

The utility model discloses a second bellying is the wavy range by the center of rotary disk to the edge, and the material can be along the outside diffusion out of order of second bellying to cooperating the rotatory shearing action between second bellying and first bellying and second bellying and the third bellying, making the moving direction between the material take place diversified change, thereby reached increase circulation route, very big improvement the effect of material misce bene homogeneity.

The utility model discloses a accuse temperature medium is by the second circulation chamber through interior water inlet get into first circulation intracavity, and the heat that stirs the in-process and produce in the shearing mixing channel down is balanced, and at last, accuse temperature medium is through interior delivery port and discharge of drain pipe department outside to reached and stirred the shearing in-process at the material and can guarantee that the material is at a constant temperature interval, avoided the material to appear overheated burnt paste and the effect of jam stirring district in the stirring region.

The utility model discloses a first shunt gets into the third circulation intracavity in the sleeve, balances the inside high temperature that produces of mechanical seal spare, afterwards, and the accuse temperature medium discharges through going out the liquid pipe in first shunt to reached the mechanism and appeared overheated effect that leads to the equipment life to shorten between the spare part at the operation in-process.

To sum up, the utility model has the advantages of stirring uniformity is good, can guarantee that the material can not appear burnt, long service life etc. among the stirring process.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial cross-sectional view of the interior of the present invention;

fig. 3 is an enlarged view of the present invention at a in fig. 2;

FIG. 4 is a flow chart of the raw materials in the forming process of the present invention;

fig. 5 is a schematic structural view of the rotary shearing module of the present invention;

FIG. 6 is a distribution diagram of the protrusions of the present invention on the surface of the rotating disc;

FIG. 7 is a diagram of the relationship between the upper cover plate and the lower cover plate;

FIG. 8 is a diagram illustrating the operation of the temperature control unit according to the present invention;

fig. 9 is a distribution diagram of the first circulation chamber in the molding unit according to the present invention.

In the figure, 1, a molding unit; 2. a temperature control unit; 3. a drive unit; 11. a cap assembly; 12. a rotary shearing assembly; 13. a bottom cover assembly; 14. a base; 111. an upper cover plate; 1111. a first boss portion; 1112. a discharge port; 1113. an upper shear mixing channel; 112. an upper closure member; 113. a first circulation chamber; 1131. an inner water inlet; 1132. an inner water outlet; 121. rotating the disc; 1211. a second boss; 122. a fixed part; 131. a lower cover plate; 1311. a third boss portion; 1312. a second circulation chamber; 1313. a feed inlet; 1314. a down-shear mixing channel; 132. a lower closure member; 201. an outer liquid inlet pipe; 202. an outlet liquid pipe; 2011. a first shunt pipe; 2021. a second shunt pipe; 301. a drive mechanism; 302. a sleeve; 3021. a third circulation chamber; 303. a mechanical seal; 304. a drive shaft; 305. a support frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example one

As shown in fig. 1-2, a uniformly foaming mixing die comprises:

a molding unit 1;

a drive unit 3;

the forming unit 1 comprises a top cover assembly 11, a rotary shearing assembly 12 and a bottom cover assembly 13;

the top cover assembly 11 and the bottom cover assembly 13 are combined to form a sealed cavity;

the rotary shear assembly 12 cooperates with the top cap assembly 11 and the bottom cap assembly 13 to form an upper shear mixing channel 1113 and a lower shear mixing channel 1314 for shear mixing, respectively.

As a modification, as shown in fig. 3 to 4 and fig. 9, the cap assembly 11 includes:

an upper cover plate 111;

an upper cover member 112;

a first circulation cavity 113 is arranged between the upper cover plate 111 and the upper cover sealing piece 112;

an inner water inlet 1131 for leading the temperature-controlled medium in the lower cover member 132 into the first circulation cavity 113 and an inner water outlet 1132 for returning the temperature-controlled medium in the first circulation cavity 113 to the lower cover member 132 again are arranged in the first circulation cavity 113;

a first lug 1111 is arranged at the lower part of the upper cover plate 111 and opposite to the rotary shearing assembly 12;

a discharge port 1112 for discharging the mixed foam is provided in the middle of the inside of the upper cover plate 111.

Further, as shown in fig. 4-5, the rotary shearing module 12 includes:

the rotating disc 121, the upper and lower ends of the rotating disc 121 are provided with a plurality of groups of second protrusions 1211 which are distributed annularly and used for shearing and stirring raw materials; the fixed part 122 connected with the driving mechanism 301 is inserted into the rotating disc 121.

Further, as shown in fig. 6, the second protrusions 1211 are arranged in a wave form from the center to the edge of the rotating disc 121.

Wherein, as shown in fig. 7-8, the bottom cap assembly 13 comprises:

a lower cover plate 131; and

a lower cover member 132;

a third boss 1311 is arranged at the position, opposite to the rotary shearing assembly 12, of the upper part of the lower cover plate 131;

the side part of the lower cover plate 131 is provided with a feed inlet 1313;

the feed inlet 1313 is communicated with the upper shearing and mixing channel 1113 between the third protruding part 1311 and the second protruding part 1211;

the up-shear mixing channel 1113 communicates with the down-shear mixing channel 1314 between the second and

first bosses

1211, 1111;

the lower part of the bottom cover component is arranged on the base.

In addition, a second circulation chamber 1312 is disposed between the lower cover member 132 and the lower cover plate 131.

As an improvement, the temperature control unit 2 for controlling the molding temperature penetrates from the lower part to the upper part of the molding unit 1 to form a backflow;

the temperature control unit 2 includes:

an outer liquid inlet pipe 201;

and the outer liquid inlet pipe 202 is used for enabling the temperature control medium to continuously flow out along the outer liquid outlet pipe 202 from the outer liquid inlet pipe 201 after sequentially passing through the bottom cover assembly 13 and the top cover assembly 11.

Further, a first shunt tube 2011 communicated with the driving unit 3 is connected to the side of the outer liquid inlet tube 201;

a second shunt pipe 2021 communicated with the driving unit 3 is connected to the side of the liquid outlet pipe 202.

As a modification, as shown in fig. 2, the drive unit 3 includes:

a drive shaft 304 rotatably connected to the drive mechanism 301;

the driving mechanism 301 preferably adopts a motor;

a sleeve 302 is sleeved outside the driving shaft 304 and at the lower part of the bottom cover assembly 13;

a mechanical sealing element 303 is rotatably sleeved inside the sleeve 302 and outside the driving shaft 304;

a third circulation cavity 3021 is arranged between the mechanical seal 303 and the sleeve 302;

the bottom of the sleeve 302 is provided with a support bracket 305.

Further, the drive shaft 304 is coupled to the rotary shear assembly 12 via a mechanical seal 303 and extends through the bottom head assembly 13.

When the device is used, the driving mechanism 301 is started, the driving mechanism 301 drives the rotating disc 121 to rotate through the driving shaft 304, so that the second convex portion 1211 positioned at the lower part of the rotating disc 121 rotates relative to the third convex portion 1311 and the second convex portion 1211 positioned at the upper part of the rotating disc 121 rotates relative to the first convex portion 1111, as shown in fig. 4, the material to be subjected to stirring and mixing processing is introduced along the feeding hole 1313 under the action of high pressure, then the material enters the upper shearing and mixing channel 1113 along the feeding hole 1313, is subjected to rotary shearing by the third convex portion 1311 and the second convex portion 1211, so that the material is subjected to primary stirring and mixing, and after being stirred at the upper shearing and mixing channel 1113, the material flows into the lower shearing and mixing channel 1314 and is subjected to secondary rotary shearing by the second convex portion 1211 and the first convex portion 1111, so that the material is further stirred and mixed, and finally the mixed material is led out at the discharging hole 1112, so that the effect of stirring and mixing the material with high viscosity and the gas in a rotary shearing manner are achieved;

in addition, as shown in fig. 4-6, the second protruding portion 1211 is arranged from the center to the edge of the rotating disc 121 in a wave manner, so that when the materials pass through the upper shearing mixing channel 1113 and the lower shearing mixing channel 1314, the materials can be diffused out of order along the second protruding portion 1211, and the moving direction between the materials is changed in multiple directions by matching the rotating shearing action between the second protruding portion 1211 and the first protruding portion 1111 as well as between the second protruding portion 1211 and the third protruding portion 1311, thereby achieving the effects of increasing the flowing path and greatly improving the mixing uniformity of the materials;

the utility model discloses in stirring the material in-process, because the material receives outside extruded effect down and cut mixing channel 1113 and shearing down 1314 internal rotation shearing in-process can appear great heat down with, lead to the temperature of material self to rise and the overheated burnt paste of appearance and equipment self heat also can increase and lead to the fact the life-span to reduce, for this reason, as shown in fig. 7-9, the utility model discloses in the stirring process, through letting in the temperature-controlled medium of outer feed liquor pipe 201 circulation, the temperature-controlled medium gets into in second circulation chamber 1312 through outer feed liquor pipe 201, balances the heat of production in the stirring in-process in shearing mixing channel 1113, afterwards, the temperature-controlled medium gets into first circulation chamber 113 through interior water inlet 1131 by second circulation chamber 1312, balances the heat that produces in the stirring in-process in the shearing mixing channel 1314 down, and finally, the temperature-controlled medium is through interior water outlet 1132 and discharge in outer pipe 202 department discharge, thereby reached and can guarantee that the material stirs the shearing in-process in a constant temperature interval, avoid the material to appear overheated burnt paste effect of jam in the stirring region;

as shown in fig. 3 and 8, when the temperature-control medium is introduced into the external liquid inlet pipe 201, the temperature-control medium further enters the third circulation cavity 3021 in the sleeve 302 through the first shunt pipe 2011, the high temperature generated inside the mechanical seal 303 is balanced, and then the temperature-control medium is discharged from the external liquid outlet pipe 202 in the first shunt pipe 2011, so that the effect of shortening the service life of the device due to overheating between parts of the mechanism during operation is achieved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A mixing die head for uniform foaming, which is characterized by comprising:

a molding unit; and

a drive unit;

the rotary shear assembly cooperates with the top cap assembly and the bottom cap assembly to form an upper shear mixing channel and a lower shear mixing channel for shear mixing, respectively.

2. A uniformly foaming mixing die as in claim 1,

the cap assembly includes:

an upper cover plate;

an upper closure member;

a first circulation cavity is arranged between the upper cover plate and the upper cover sealing piece;

3. A uniformly foaming mixing die as in claim 2,

the rotary shearing assembly comprises:

4. A uniformly foaming mixing die as in claim 3,

the second convex parts are arranged in a wave form from the center of the rotating disc to the edge.

5. A uniformly foaming mixing die as in claim 4,

the bottom cap assembly includes:

a lower cover plate; and

a lower closure member;

a feed inlet is formed in the side part of the lower cover plate;

the upper shearing and mixing channel is communicated with the lower shearing and mixing channel between the second lug boss and the first lug boss.

6. A uniformly foaming mixing die as in claim 5,

and a second circulation cavity is arranged between the lower sealing cover part and the lower cover plate.

7. A uniformly foaming mixing die as in claim 1,

further comprising: the temperature control unit for controlling the molding temperature penetrates from the lower part to the upper part of the molding unit to form reflux;

the temperature control unit comprises:

an outer liquid inlet pipe;

an outlet liquid pipe;

8. A uniformly foaming mixing die as in claim 7,

the side part of the outer liquid inlet pipe is connected with a first shunt pipe communicated with the driving unit;

9. A uniformly foaming mixing die as in claim 1,

the driving unit includes:

a drive shaft rotationally connected to the drive mechanism;

10. A foam homogenizing mixing die according to claim 9,

the driving shaft passes through the mechanical sealing element and penetrates through the bottom cover assembly to be connected with the rotary shearing assembly.