CN211537433U

CN211537433U - PVC agitating unit for compounding

Info

Publication number: CN211537433U
Application number: CN201922439616.XU
Authority: CN
Inventors: 宋忠强
Original assignee: Henan Yuxinxin Technology Development Co ltd
Current assignee: Henan Yuxinxin Technology Development Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-22
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a PVC agitating unit for compounding, including the (mixing) shaft, scraper blade and stirring board, install multilayer stirring rake on the (mixing) shaft, and each layer of stirring rake includes a plurality of connecting rods, the one end of connecting rod is installed on the (mixing) shaft, the scraper blade has and meets the charge level, the arc back, installation face A and installation face B, the arc back with meet the charge level and constitute triangle point portion, an installation face A's a side with meet the charge level each other the angulation and be connected, installation face A's another side and installation face B's a side each other the angulation and be connected, installation face B's another side and arc back connection, the other end of connecting rod is installed on installation face A, the stirring board is. The utility model discloses set up the multilayer stirring rake, and the setting of staggering of upper and lower two-layer stirring rake is provided with a plurality of scraper blades on every layer of stirring rake, and the scraper blade can strike off the mixture that glues glutinous barrel internal surface, makes during it participates in the compounding of material to improve compounding quality and efficiency, improved the utilization ratio of raw and other materials.

Description

PVC agitating unit for compounding

Technical Field

The utility model relates to a agitating unit, especially agitating unit for PVC compounding.

Background

PVC is white powder with an amorphous structure, the branching degree is small, the relative density is about 1.4, the glass transition temperature is 77-90 ℃, decomposition starts at about 170 ℃, the stability to light and heat is poor, the PVC can be decomposed to generate hydrogen chloride at more than 100 ℃ or after long-time sunshine insolation, further the hydrogen chloride is automatically catalyzed and decomposed to cause color change, the physical and mechanical properties are also rapidly reduced, and a stabilizer must be added in practical application to improve the stability to heat and light.

The molecular weight of the PVC produced industrially is generally within the range of 5-11 ten thousand, and the PVC has larger polydispersity, and the molecular weight is increased along with the reduction of polymerization temperature; without a fixed melting point, softening begins at 80-85 ℃, the temperature of 130 ℃ becomes a viscoelastic state, and the temperature of 160-180 ℃ begins to change into a viscous state; the composite material has good mechanical properties, the tensile strength is about 60MPa, and the impact strength is 5-10 kJ/m 2; has excellent dielectric properties.

PVC has been the most widely used plastic in the world and is used in a very wide range of applications. The product has wide application in building materials, industrial products, daily necessities, floor leathers, floor tiles, artificial leathers, pipes, wires and cables, packaging films, bottles, foaming materials, sealing materials, fibers and the like.

In the production process of PVC powder, a plasticizer, a lubricant, a stabilizer and other modifiers are generally required to be uniformly dispersed in a mixture, but the plasticizer, the lubricant and the stabilizer are used as liquid medicaments and can be adhered to the inner surface of a mixing cylinder body in the mixing process of the PVC powder, so that the mixing is not uniform, the mixing efficiency is low, and the waste of raw materials is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide agitating unit for PVC compounding.

The purpose of the utility model is realized through the following technical scheme: PVC agitating unit for compounding, including the (mixing) shaft, scraper blade and stirring board, install the multilayer stirring rake on the (mixing) shaft, and each layer of stirring rake includes a plurality of connecting rods, the one end of connecting rod is installed on the (mixing) shaft, the scraper blade has and meets the charge level, the arc back, installation face A and installation face B, the arc back with meet the charge level and constitute triangle point portion, a side of installation face A with meet the charge level each other the angulation and be connected, installation face A's another side and installation face B's a side each other the angulation and be connected, installation face B's another side and arc back connection, the other end of connecting rod is installed on installation face A, the stirring board is installed.

Preferably, the connecting rod is provided with a connecting lug, the connecting lug is provided with a through hole, the mounting surface A is provided with a threaded hole, and the scraper is mounted on the connecting rod through a locking screw A.

Preferably, the mounting surface B of the scraper is also provided with a threaded hole, and the stirring plate is mounted on the mounting surface B of the scraper through a locking screw B.

Preferably, each layer of stirring paddle comprises four connecting rods, and the connecting rods are uniformly distributed on the same circumference.

Preferably, the upper stirring paddle and the lower stirring paddle are arranged in a radially staggered mode, and the staggered angle is 45 degrees.

Preferably, the lower end face of the upper layer scraper is flush with the upper end face of the lower layer scraper.

The utility model has the advantages of it is following: the utility model discloses a PVC is agitating unit for compounding, set up the multilayer stirring rake, and the setting of staggering of upper and lower two-layer stirring rake, be provided with a plurality of scraper blades on every layer of stirring rake, the scraper blade can strike off the mixture that glues glutinous barrel internal surface, make it participate in the compounding of material, thereby improve compounding quality and efficiency, the utilization ratio of raw and other materials has been improved, the waste of raw and other materials has been reduced, the manufacturing cost has been practiced thrift, and whole device, easy dismouting, and after the scraper blade wearing and tearing, only need change the scraper blade, thereby reduce the cost of overhaul.

Drawings

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

FIG. 2 is a schematic top view of FIG. 1;

FIG. 3 is a schematic cross-sectional view of A-A of FIG. 1;

FIG. 4 is a schematic cross-sectional view of B-B of FIG. 1;

FIG. 5 is a schematic structural view of a connecting rod;

FIG. 6 is an enlarged schematic view at I of FIG. 3;

FIG. 7 is a schematic view of the construction of the squeegee;

in the figure, 1-stirring shaft, 2-connecting rod, 3-scraping plate, 4-stirring plate, 5-locking screw A, 6-locking screw B, 21-connecting lug, 31-material-facing surface, 32-arc back surface, 33-mounting surface A, 34-mounting surface B.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, agitating unit is used to PVC compounding, including (mixing) shaft 1, scraper blade 3 and stirring board 4, install multilayer stirring rake on the (mixing) shaft 1, and each layer of stirring rake includes a plurality of connecting rods 2, in this embodiment, include four connecting rods 2 on each layer of stirring rake, and connecting rod 2 evenly distributed is on same circumference, the one end of connecting rod 2 is installed on (mixing) shaft 1, be convenient for the dismantlement of connecting rod 2, and is further, set up the screw rod on the connecting rod 2, and set up on the (mixing) shaft 1 with screw rod complex screw, cooperation through screw rod and screw, realize dismantling of connecting rod 2 and be connected, thereby make connecting rod 2 be convenient for the dismouting.

In this embodiment, as shown in fig. 7, scraper blade 3 has and meets charge level 31, the arc back 32, installation face a33 and installation face B34, furthermore, the arc back 32 constitutes triangle point portion with meeting charge level 31, the tip of triangle point portion contacts with the inside wall of barrel all the time, therefore when the pivot rotates, triangle point portion can scrape off the material that glues to the barrel inside wall, make this material get back to the inside stirring of barrel, thereby improve the quality and the efficiency of PVC compounding, in this embodiment, the interval between arc back 32 and the barrel inside wall reduces along the direction of rotation of pivot gradually, thereby avoid arc back 32 and barrel to take place to interfere, guarantee scraper blade 3's normal operating.

In the embodiment, one side of the mounting surface a33 is connected with the material facing surface 31 at an angle, the other side of the mounting surface a33 is connected with one side of the mounting surface B34 at an angle, the other side of the mounting surface B34 is connected with the arc back surface 32, the other end of the connecting rod 2 is mounted on the mounting surface a33, the stirring plate 4 is mounted on the mounting surface B34, further, as shown in fig. 5 and 6, the connecting rod 2 is provided with a connecting lug 21, the connecting lug 21 is provided with a through hole, the mounting surface a33 is provided with a threaded hole, the scraper 3 is mounted on the connecting rod 2 through a locking screw a5, the scraper 3 is in contact with the inner wall of the cylinder, so that during the rotation of the rotating shaft, the scraper 3 scrapes off powder on the inner wall of the cylinder, the scraped powder enters the cylinder facing surface 31, and the triangular tip of the scraper 3 is easy to wear during the long-term scraping, thereby generating a gap between the, so that the scraper 3 can not scrape the powder on the inner wall of the cylinder, and at the moment, the locking screw A5 is loosened and a new scraper 3 is replaced.

In this embodiment, as shown in fig. 6, a threaded hole is also opened on the mounting surface B34 of the scraper blade 3, the stirring plate 4 is mounted on the mounting surface B34 of the scraper blade 3 through a locking screw B6, the stirring plate 4 can accelerate the mixing of raw materials, the mixing efficiency is improved, and the stirring plate 4 only plays a role in stirring, the wear of the stirring plate is small, even after the wear, the stirring plate can be used normally, so the use length of the stirring plate 4 is long, the stirring plate 4 is detachably connected with the scraper blade 3, only the scraper blade 3 needs to be replaced after the scraper blade 3 is damaged, the stirring plate 4 does not need to be replaced, and the replacement cost and the operation cost of products are reduced.

In this embodiment, upper stirring rake and the setting of radially staggering of lower floor's stirring rake, and the angle of staggering is 45, and is further, and the lower terminal surface of upper scraper blade 3 flushes with the up end of lower floor's scraper blade 3, consequently on the axial direction, the internal surface of the cover barrel of a plurality of scraper blade 3 can be by a large scale for it strikes off all to glue glutinous material on the barrel inner wall between upper scraper blade 3 and the lower floor's scraper blade 3, thereby further improvement compounding quality and compounding efficiency.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

PVC is agitating unit for compounding, its characterized in that: including (mixing) shaft, scraper blade and stirring board, install the multilayer stirring rake on the (mixing) shaft, and each layer the stirring rake includes a plurality of connecting rods, the one end of connecting rod is installed on the (mixing) shaft, the scraper blade has and meets charge level, the arc back, installation face A and installation face B, the arc back with meet the charge level and constitute triangle point portion, a side of installation face A with meet the charge level and each other become the angle and be connected, the another side of installation face A with install face B's a side each other become the angle and be connected, install face B's another side with the arc back is connected, the other end of connecting rod is installed install on the installation face A, the stirring board is installed install on the installation face B.
2. The PVC agitating unit for compounding of claim 1, wherein: the scraper is characterized in that a connecting lug is arranged on the connecting rod, a through hole is formed in the connecting lug, a threaded hole is formed in the mounting surface A, and the scraper is mounted on the connecting rod through a locking screw A.
3. The PVC agitating unit for compounding of claim 2, wherein: and a threaded hole is also formed in the mounting surface B of the scraper, and the stirring plate is mounted on the mounting surface B of the scraper through a locking screw B.
4. The PVC agitating unit for compounding of claim 3, wherein: each layer including four connecting rods on the stirring rake, just the connecting rod evenly distributed is on same circumference.
5. The PVC agitating unit for compounding of claim 4, wherein: the upper strata stirring rake and lower floor the radial setting of staggering of stirring rake, and the angle of staggering is 45.
6. The PVC agitating unit for compounding of claim 5, wherein: the lower end face of the upper layer of the scraper is flush with the upper end face of the lower layer of the scraper.