CN215282788U

CN215282788U - PVC compounding device

Info

Publication number: CN215282788U
Application number: CN202121220389.2U
Authority: CN
Inventors: 宋忠强
Original assignee: Henan Yuxinxin Technology Development Co ltd
Current assignee: Henan Yuxinxin Technology Development Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-24
Anticipated expiration: 2031-06-02

Abstract

The utility model relates to a PVC compounding technical field discloses a PVC compounding device, it includes the barrel, storage silo and transport auger, storage silo is located one side of barrel, and storage silo's discharge gate is connected with the feed inlet of carrying the flood dragon, the feed inlet of carrying the flood dragon passes the top lateral wall of barrel, and be located the barrel, the upper end cover is installed at the top of barrel, install agitating unit in the barrel, be provided with the wearing layer in the helical blade's of carrying the auger outer fringe, the wearing layer comprises a plurality of wearing blocks, the wearing block passes through bolt demountable installation in helical blade's outer fringe. The utility model has the advantages that: the whole spiral blade replacement is avoided by replacing the wear-resistant block, the structure is simple, the maintenance cost is low, and the use cost of the equipment is reduced.

Description

PVC compounding device

Technical Field

The utility model relates to a PVC compounding technical field, especially a PVC compounding device.

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 PVC powder production process, the outer edge of the rotating blade of the auger for conveying the powder is seriously abraded, and in the prior art, the whole set of rotating blade is usually replaced, so that the maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PVC compounding device to solve the problem of the whole set of change of auger rotating vane of current transport PVC powder.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a PVC compounding device, includes barrel, storage silo and carries the auger, the storage silo is located one side of barrel, just the discharge gate of storage silo with the feed inlet of carrying the auger is connected, the feed inlet of carrying the auger passes the top lateral wall of barrel, and is located in the barrel, the upper end cover is installed at the top of barrel, install agitating unit in the barrel, be provided with the wearing layer in the helical blade's of carrying the auger outer fringe, the wearing layer comprises a plurality of wearing blocks, the wearing block passes through bolt demountable installation in helical blade's outer fringe.

Preferably, agitating unit includes (mixing) shaft, scraper blade and connecting rod, install 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 is installed to the other end of connecting rod, the scraper blade laminating is in on the inside wall of barrel, the top and a agitator motor of (mixing) shaft are connected, agitator motor installs on the upper end cover, the rotatable installation in bottom of (mixing) shaft the bottom of barrel, still install a plurality of liquid feeding pipes on the upper end cover, just the liquid outlet of liquid feeding pipe is located in the barrel.

Preferably, the scraper blade has a material receiving surface, an arc-shaped back surface, an installation surface A and an installation surface B, the arc-shaped back surface and the material receiving surface form a triangular tip portion, one side edge of the installation surface A is connected with the material receiving surface at an angle, the other side edge of the installation surface A is connected with one side edge of the installation surface B at an angle, the other side edge of the installation surface B is connected with the arc-shaped back surface, and the other end of the connecting rod is installed on the installation surface A.

Preferably, the mounting surface B is provided with a stirring plate through a locking screw B.

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

Preferably, the stirring rake on upper strata and lower floor the stirring rake radially staggers the setting, and stagger the angle and be 45.

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

Preferably, a ladder groove has been seted up to the bottom of barrel, the bearing is installed to the ladder inslot, the bottom suit of (mixing) shaft is in the bearing, the bottom of barrel still installs lower sealing cover, lower sealing cover will the ladder groove is sealed.

The utility model has the advantages of it is following:

1. the whole spiral blade replacement is avoided by replacing the wear-resistant block, the structure is simple, the maintenance cost is low, and the use cost of the equipment is reduced.

2. PVC powder is fed into the cylinder body through the conveying auger, and the cylinder body forms a sealed space, so that the loss of the PVC powder due to dust raising is avoided, the waste of the PVC powder is avoided, and the proportion of PVC mixed materials is ensured; and 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 to barrel internal surface, makes it participate in the compounding of material to improve compounding quality and efficiency, improved the utilization ratio of raw and other materials, reduced the waste of raw and other materials, practiced thrift manufacturing cost.

Drawings

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

FIG. 2 is a first schematic structural diagram of a stirring apparatus;

FIG. 3 is a schematic structural diagram II of the stirring device;

FIG. 4 is a schematic cross-sectional view A-A of FIG. 2;

FIG. 5 is a schematic cross-sectional view of B-B of FIG. 2;

FIG. 6 is a schematic structural view of a connecting rod;

FIG. 7 is an enlarged schematic view taken at I in FIG. 4;

FIG. 8 is a schematic view of the construction of the squeegee;

FIG. 9 is a schematic view of the mounting structure of the wear block;

in the figure, 1-stirring shaft, 2-connecting rod, 3-scraping plate, 4-stirring plate, 5-locking screw A, 6-locking screw B, 23-connecting lug, 31-material-facing surface, 32-arc back surface, 33-A mounting surface, 34-B mounting surface, 11-cylinder body, 12-stirring device, 13-lower sealing cover, 14-upper end cover, 15-stirring motor, 16-liquid feeding pipe, 17-conveying auger, 18-storage bin, 19-stepped groove, 20-wear-resistant block, 21-bolt and 22-nut.

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 9, a PVC mixing device comprises a cylinder 11, a storage bin 18 and a conveying auger 17, wherein the storage bin 18 is located at one side of the cylinder 11, a discharge port of the storage bin 18 is connected with a feed port of the conveying auger 17, a wear-resistant layer is arranged on the outer edge of a helical blade of the conveying auger, the wear-resistant layer is composed of a plurality of wear-resistant blocks 20, the wear-resistant blocks 20 are detachably mounted on the outer edge of the helical blade through bolts 21, the bolts 21 simultaneously penetrate through the wear-resistant blocks 20 and the helical blade, then nuts 22 are screwed on to fix the wear-resistant blocks 20 on the helical blade, the helical blade is prevented from being integrally replaced by replacing the wear-resistant blocks, the structure is simple, the maintenance cost is low, the equipment use cost is reduced, the feed port of the conveying auger 17 penetrates through the top side wall of the cylinder 11 and is located in the cylinder 11, PVC powder is arranged in the storage bin 18, a valve is arranged at the discharge port of the storage bin 18, open the valve and then make the PVC powder fall into in carrying auger 17, in this implementation, carry auger 17 to be existing equipment, carry auger 17 to include the conveying pipe, install the bolt pay-off axle in the conveying pipe, the bolt pay-off axle is through installing driving motor drive on the conveying pipe, the powder that enters into and carries auger 17 then delivers to barrel 11 in through carrying auger 17, in this embodiment, upper end cover 14 is installed at the top of barrel 11, upper end cover 14 makes barrel 11 seal, thereby make the PVC powder, can not spill over barrel 11 because of the raise dust, thereby the waste of PVC powder has been avoided, the proportion of PVC compounding has also been guaranteed simultaneously.

In this embodiment, install agitating unit 12 in barrel 11, as shown in fig. 2 and 3, agitating unit 12 includes (mixing) shaft 1, scraper blade 3 and stirring board 4, install the multilayer stirring rake on the (mixing) shaft 1, and each layer of stirring rake includes a plurality of connecting rods 2, in this embodiment, as shown in fig. 4 and 5, 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, furthermore, 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 hole, realize connecting rod 2's the connection of dismantling, thereby make connecting rod 2 be convenient for the dismouting.

In this embodiment, as shown in fig. 8, the laminating of scraper blade 3 is on the inside wall of barrel 11, it is concrete, scraper blade 3 has and meets charge level 31, the arc back 32, a installation face 33 and B installation face 34, furthermore, the arc back 32 with meet charge level 31 and constitute triangle point portion, the tip of triangle point portion laminates with the inside wall of barrel 11 all the time, consequently, when the pivot rotates, triangle point portion can strike off the material that glues to the inside wall of barrel 11, make this material get back to barrel 11 inside and stir, thereby improve the quality and the efficiency of PVC compounding, in this embodiment, the interval between arc back 32 and the barrel 11 inside wall reduces along the direction of rotation of pivot gradually, thereby avoid arc back 32 and barrel 11 to take place to interfere, guarantee scraper blade 3's normal operating.

In this embodiment, one side of the a mounting surface 33 is connected to the material receiving surface 31 at an angle, the other side of the a mounting surface 33 is connected to one side of the B mounting surface 34 at an angle, the other side of the B mounting surface 34 is connected to the arc back surface 32, the other end of the connecting rod 2 is mounted on the a mounting surface 33, the stirring plate 4 is mounted on the B mounting surface 34, further, as shown in fig. 6, the connecting rod 2 is provided with a connecting lug 23, the connecting lug 23 is provided with a through hole, the a mounting surface 33 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 barrel 11, so that during the rotation of the rotating shaft, the scraper 3 scrapes off the powder on the inner wall of the barrel 11, the scraped powder enters the barrel 11 through the material receiving surface 31, and the triangular tip of the scraper 3 is easily worn during the long-term scraping, therefore, a gap is formed between the scraper 3 and the inner wall of the cylinder 11, so that the scraper 3 cannot scrape powder on the inner wall of the cylinder 11, and at the moment, the locking screw A5 is loosened and a new scraper 3 is replaced.

In this embodiment, as shown in fig. 7, a threaded hole is also opened on the B mounting surface 34 of the scraper 3, the stirring plate 4 is mounted on the B mounting surface 34 of the scraper 3 through a locking screw B6, the stirring plate 4 can accelerate the mixing of raw materials, the mixing efficiency is improved, the stirring plate 4 only plays a role in stirring, the wear is small, even after the wear, the stirring plate can be used normally, therefore, the stirring plate 4 is long in use, and the stirring plate 4 is detachably connected with the scraper 3, so that only the scraper 3 needs to be replaced after the scraper 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 cover barrel 11 that a plurality of scraper blade 3 can be large-area for it strikes off all to glue glutinous material on the 11 inner walls of barrel between upper scraper blade 3 and the lower floor's scraper blade 3, thereby further improvement compounding quality and compounding efficiency.

In this embodiment, the top end of (mixing) shaft is connected with a agitator motor 15, and agitator motor 15 installs on upper end cover 14, and the bottom of (mixing) shaft is rotatable installs in the bottom of barrel 11, still installs a plurality of liquid feeding pipes 16 on upper end cover 14, and the liquid outlet of liquid feeding pipe 16 is located barrel 11, through liquid feeding pipe 16, can add modifiers such as plasticizer, emollient, stabilizer in barrel 11, realizes the compounding of PVC.

In this embodiment, a ladder groove 19 has been seted up to the bottom of barrel 11, installs the bearing in the ladder groove 19, and the bottom suit of (mixing) shaft is in the bearing, and lower sealing cover 13 is still installed to the bottom of barrel 11, and lower sealing cover 13 is sealed ladder groove 19, and through the bearing, the (mixing) shaft can rotate relative to barrel 11, and lower sealing cover 13 then can avoid the powder to enter into ladder groove 19 to guarantee the life of bearing.

In this embodiment, after the PVC powder is mixed, upper end cover 14 can be opened, the PVC mixture that will mix is taken out, also can set up the discharging pipe in the bottom of barrel 11, opens the valve on the discharging pipe, discharges the PVC mixture.

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

1. The utility model provides a PVC compounding device, includes barrel, storage silo and carries the auger, the storage silo is located one side of barrel, just the discharge gate of storage silo with the feed inlet of carrying the auger is connected, the feed inlet of carrying the auger passes the top lateral wall of barrel, and is located in the barrel, the upper end cover is installed at the top of barrel, install agitating unit, its characterized in that in the barrel: the outer edge of the helical blade of the conveying auger is provided with a wear-resistant layer, the wear-resistant layer is composed of a plurality of wear-resistant blocks, and the wear-resistant blocks are detachably mounted on the outer edge of the helical blade through bolts.

2. A PVC mixing apparatus as claimed in claim 1, characterised in that: agitating unit includes (mixing) shaft, scraper blade and connecting rod, install 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 is installed to the other end of connecting rod, the scraper blade laminating is in on the inside wall of barrel, the top and a agitator motor of (mixing) shaft are connected, agitator motor installs on the upper end cover, the rotatable installation in bottom of (mixing) shaft the bottom of barrel, still install a plurality of liquid feeding pipes on the upper end cover, just the liquid outlet of liquid feeding pipe is located in the barrel.

3. A PVC mixing apparatus as claimed in claim 2, characterised in that: the scraper blade is provided with a material receiving surface, an arc-shaped back surface, an A mounting surface and a B mounting surface, the arc-shaped back surface and the material receiving surface form a triangular tip part, one side edge of the A mounting surface is connected with the material receiving surface at an angle, the other side edge of the A mounting surface is connected with one side edge of the B mounting surface at an angle, the other side edge of the B mounting surface is connected with the arc-shaped back surface, and the other end of the connecting rod is mounted on the A mounting surface.

4. A PVC mixing apparatus as claimed in claim 3, characterised in that: and the mounting surface B is provided with a stirring plate through a locking screw B.

5. A PVC compounding device of claim 4, characterized in that: 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.

6. A PVC compounding device of claim 5, characterized in that: each layer including four connecting rods on the stirring rake, just the connecting rod evenly distributed is on same circumference.

7. A PVC compounding device of claim 6, characterized in that: the upper strata stirring rake and lower floor the radial setting of staggering of stirring rake, and the angle of staggering is 45.

8. A PVC compounding device of claim 7, characterized in that: 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.

9. A PVC mixing device according to claim 2 or 8, characterized in that: a ladder groove has been seted up to the bottom of barrel, the bearing is installed to the ladder inslot, the bottom suit of (mixing) shaft is in the bearing, the bottom of barrel still installs lower sealing cover, lower sealing cover will the ladder groove is sealed.