CN210880792U

CN210880792U - Automobile plastic particle plasticizing device

Info

Publication number: CN210880792U
Application number: CN201921857757.7U
Authority: CN
Inventors: 李欢
Original assignee: Wuhan Keji Molding Co ltd
Current assignee: Wuhan Keji Molding Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-06-30
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a car plastic granule plasticizing device sets up the shale shaker through hopper below under, sieves out large granule plastics and gets into the surplus processing of screen and organize and further handle, during the first conveyer pipe of conveying back again after the processing to guarantee that the particle diameter of the plastic granules that directly gets into first conveyer pipe remains stable basically, realized the even melting of plastic granules.

Description

Automobile plastic particle plasticizing device

Technical Field

The utility model belongs to the technical field of the automobile manufacturing, especially a car plastic granule plasticizing device.

Background

The plastic extruding machine is not used for producing automobile plastic parts, the working process of the plastic extruding machine is to convey, melt, mix and extrude plastic particles, and the core component of the plastic extruding machine is used for realizing the complete and uniform melting of the plastic particles. The particle size of the plastic particle raw materials is often not uniform, if the plastic particle raw materials enter an extruding machine at the same time, some large-particle plastic is extruded out without being completely melted, an extruding port is easy to be blocked, and the strength of an automobile plastic part formed by extrusion molding can not meet the requirement even if the plastic particle raw materials are not blocked, so that the automobile safety is influenced.

In the prior art, for example, patent CN201721104951.9 provides an improved plastic extruder, which separates the melting process of plastic particles into a mutually independent structure of front-stage melting and rear-stage homogenization by arranging a filtering device on a charging barrel to filter impurities, and arranges a barrier screw to prevent the insufficiently melted large-particle raw material from entering the homogenization section to ensure more uniform plasticization. However, the machine still puts the large and small particles into the same screw conveyor to be conveyed and melted, and the vicinity of the barrier thread is also easy to influence the injection molding effect due to blockage of the unmelted large particles of plastic.

Disclosure of Invention

In order to solve the problem of the prior art, the utility model provides a car plastic granule plasticizing device realizes through following technical scheme.

A plasticizing device for automobile plastic particles comprises a blanking hopper and a first thread conveying group, wherein the first thread conveying group comprises a first conveying pipe and a first threaded rod positioned in the first conveying pipe, and a first motor is additionally arranged to control the rotation of the first threaded rod; a vibrating screen is arranged between the discharging hopper and the first threaded conveying group; a screen residue treatment group is additionally arranged, a screen bottom outlet of the vibrating screen is connected with a feed inlet of the first conveying pipe, and a screen residue outlet of the vibrating screen is connected with a feed inlet of the screen residue treatment group; the first threaded rod is provided with a first heater; and the discharge hole of the screen residue treatment group is communicated with the pipe wall of the first conveying pipe.

Above-mentioned plasticizing device sets up the shale shaker through hopper below down. The shale shaker is the equipment that the uneven granule material of screening thickness was used commonly, and the inside slope of shale shaker is equipped with the sieve, and the sieve is generally longer and length is confirmed according to concrete actual conditions in order to guarantee best screening effect. Firstly, plastic particle materials are poured into a discharging hopper, a hopper opening of the discharging hopper is positioned right above the higher end of an inclined sieve plate, the plastic particle materials fall into the higher end of the sieve plate of the vibrating sieve from the discharging hopper, and the plastic particle materials continuously slide downwards along the plane of the sieve plate in the continuous vibration process of the vibrating sieve. In the sliding process, the small-particle plastic falls into the first conveying pipe through the undersize outlet and the feed inlet of the first conveying pipe while being screened by the screen plate; the plastic granules of large granule is then held back on the sieve to screen along with the vibration moves to the sieve bottom gradually, at last from the surplus export screening and get into the surplus further processing of handling in the group of handling of the sieve, in the first conveyer pipe of refeed back after the processing is finished, thereby guarantee that the particle diameter of the plastic granules of direct entering first conveyer pipe remains stable basically, and the melting is more even. The extrusion group of the plasticizing device adopts the conventional technology, and the vibrating screen is also common equipment for screening materials with different particle sizes.

Preferably, a second heater is arranged in the pipe wall of the first conveying pipe. The second heater that sets up in the first conveyer pipe can guarantee that the plastics that are close to first threaded rod in the first conveyer pipe and the plastics that are close to first conveyer pipe wall are in under the almost the same temperature, avoid appearing the uneven condition of temperature distribution and influence the melting and the effect of moulding plastics.

More preferably, the rejects treatment group is a second screw conveying group; the second thread conveying group comprises a second conveying pipe, a second threaded rod is arranged in the second conveying pipe, and a second motor is additionally arranged to control the second threaded rod to rotate; a third heater is arranged in the second threaded rod; the pitch of the second threaded rod is greater than the pitch of the first threaded rod. As a technical scheme, screen residue screened out by the vibrating screen is separately heated to be completely melted, and then is injected into the first conveying pipe again to be mixed and melted with the plastic in the first conveying pipe. The length of second threaded rod makes the second threaded rod just be located the second conveyer pipe, and the motion of second threaded rod can not influence the motion of first threaded rod promptly. Generally, the second threaded rod rotates at a slower speed than the first threaded rod, based on the complete melting of the plastic material being reinjected into the first delivery pipe.

Further preferably, a fourth heater is arranged in the pipe wall of the second conveying pipe.

Preferably, the surplus processing group of sieves is a roller mill, a plurality of cutters are arranged on the inner wall of the roller mill, a third conveying pipe is arranged below the roller mill, a third threaded rod is arranged inside the third conveying pipe, a third motor is additionally arranged to control the third threaded rod to rotate, and a valve plate is arranged at a discharge port at the tail end of the third conveying pipe. As another technical scheme, the arrangement mode of the cutters in the roller crusher can be adjusted according to the required particle size of the plastic particles, the materials are crushed to be proper particle size through the roller crusher, and finally the materials are conveyed into the first conveying pipe through the third conveying pipe to be melted. The length of the third threaded rod enables the third threaded rod to be located just in the third conveying pipe, namely the movement of the third threaded rod cannot influence the movement of the first threaded rod. A roller crusher belongs to the conventional equipment for crushing materials.

Further preferably, the valve plate is controlled to open and close by a fourth motor.

Compared with the prior art, the beneficial effects of the utility model are that: large-particle plastics are screened out by arranging a vibrating screen below the lower hopper, and the oversize treatment group is utilized to carry out independent treatment and finally is conveyed again to converge into the first conveying pipe, so that the plastic particles are uniformly melted.

Drawings

FIG. 1 is a schematic structural diagram of an apparatus for plasticizing plastic particles of an automobile according to embodiment 1;

FIG. 2 is a top view of the apparatus for plasticizing plastic granules of an automobile according to embodiment 1 (the lower hopper is not shown);

FIG. 3 is a right side view of the discharge hopper and the vibrating screen of the apparatus for plasticizing automobile plastic pellets according to embodiment 1;

FIG. 4 is a top view of the apparatus for plasticizing plastic granules of an automobile of example 2 without a discharge hopper.

In the figure: 1. feeding a hopper; 2. extruding group; 3. a first delivery pipe; 4. a first threaded rod; 5. a first motor; 6. vibrating screen; 7. a second delivery pipe; 8. a second threaded rod; 9. a second motor; 10. a roller crusher; 11. a cutter; 12. a third delivery pipe; 13. a third threaded rod; 14. a third motor.

Detailed Description

The technical solutions of the embodiments in this patent will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments, not all embodiments, of this patent. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the patent without making creative efforts, shall fall within the protection scope of the patent.

In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the patent and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the patent. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of this patent, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. It is to be noted that all the figures are exemplary representations. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.

The patent is described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Example 1

As shown in fig. 1-3, the plasticizing apparatus for plastic particles for automobiles provided in this embodiment includes a feeding hopper 1, a first screw conveying set and an extruding set 2, where the first screw conveying set includes a first conveying pipe 1, a first threaded rod 4 is disposed in the first conveying pipe 3, and a first motor 5 is further disposed to control the rotation of the first threaded rod 4; a vibrating screen 6 is arranged between the discharging hopper 1 and the first threaded conveying group; a screen residue processing group is additionally arranged, the undersize part of the vibrating screen 6 is connected with the feed inlet of the first conveying pipe 3, and the screen residue part of the vibrating screen 6 is connected with the feed inlet of the screen residue processing group; the first threaded rod 4 is provided with a first heater; and the discharge hole of the screen residue treatment group is connected with the pipe wall of the first conveying pipe 3.

The screen residue treatment group is specifically a second thread conveying group; the second thread conveying group comprises a second conveying pipe 7, a second threaded rod 8 is arranged in the second conveying pipe 7, and a second motor 9 is additionally arranged to control the second threaded rod 8 to rotate; a third heater is arranged in the second threaded rod 8; the pitch of the second threaded rod 8 is greater than the pitch of the first threaded rod 4.

Above-mentioned plasticizing device sets up the shale shaker through hopper below down, sieves out large granule plastics and gets into the surplus further processing of handling in the group of handling of sieving, in the first conveyer pipe of conveying back again after the processing to guarantee that the particle diameter of the plastic granules that directly gets into first conveyer pipe remains stable basically, and the melting is more even. The residual screening treatment group has the function that the residual screening materials screened out by the vibrating screen are independently heated to be completely melted and then are re-injected into the first conveying pipe to be mixed and melted with the plastics in the first conveying pipe. Generally, to ensure that the large plastic particles are completely melted, the second threaded rod is rotated at a slower speed than the first threaded rod, and the large plastic particles stay in the second delivery tube for a longer period of time. The concrete rotating speed of the test piece is subject to the condition that the plastic re-injected into the first conveying pipe is completely melted.

Example 2

As shown in fig. 4, the plasticizing apparatus for plastic granules of an automobile provided in this embodiment is substantially the same as that of embodiment 1, except that the specific structure of the triage treatment group of this embodiment is: the screen residue processing group is a roller crusher 10, a plurality of cutters 11 are arranged on the inner wall of the roller crusher 10, a third conveying pipe 12 is arranged below the roller crusher 10, a third threaded rod 13 is arranged inside the third conveying pipe 12, a third motor 14 is additionally arranged to control the third threaded rod 13 to rotate, and a valve plate is arranged at a discharge port at the tail end of the third conveying pipe 12.

The triage treatment group of the embodiment is another technical scheme of the application, and larger particles of plastic are smashed into a proper size through a roller crusher and then sent back to the first conveying pipe to be continuously melted. The valve plate is of a construction which is common in material conveying pipelines and is therefore not shown in the figures.

The above embodiments describe the implementation of the present invention in detail, however, the present invention is not limited to the specific details of the above embodiments. Within the scope of the claims and the technical idea of the present invention, various simple modifications and changes can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

Claims

1. A plasticizing device for automobile plastic particles comprises a blanking hopper, a first thread conveying group and an extrusion group, and is characterized in that the first thread conveying group comprises a first conveying pipe and a first threaded rod positioned in the first conveying pipe, and a first motor is additionally arranged to control the first threaded rod to rotate; a vibrating screen is arranged between the discharging hopper and the first threaded conveying group; a screen residue treatment group is additionally arranged, a screen bottom outlet of the vibrating screen is connected with a feed inlet of the first conveying pipe, and a screen residue outlet of the vibrating screen is connected with a feed inlet of the screen residue treatment group; the first threaded rod is provided with a first heater; and the discharge hole of the screen residue treatment group is communicated with the pipe wall of the first conveying pipe.

2. The apparatus as claimed in claim 1, wherein a second heater is disposed in the wall of the first pipe.

3. The apparatus for plasticizing automotive plastic pellets of claim 1 or 2, wherein the oversize treatment group is a second screw conveying group; the second thread conveying group comprises a second conveying pipe, a second threaded rod is arranged in the second conveying pipe, and a second motor is additionally arranged to control the second threaded rod to rotate; a third heater is arranged in the second threaded rod; the pitch of the second threaded rod is greater than the pitch of the first threaded rod.

4. The apparatus as claimed in claim 3, wherein a fourth heater is disposed in the wall of the second conveying pipe.

5. The plasticizing apparatus for plastic granules of vehicle as claimed in claim 1 or 2, wherein the oversize treatment group is a roller crusher, the inner wall of the roller crusher is arranged with a plurality of cutters, a third conveying pipe is arranged under the roller crusher, a third threaded rod is arranged in the third conveying pipe, a third motor is arranged to control the third threaded rod to rotate, and a valve plate is arranged at a discharge port at the end of the third conveying pipe.

6. The plasticizing apparatus of claim 5, wherein the valve plate is controlled to open and close by a fourth motor.