CN215550378U

CN215550378U - Feeding device

Info

Publication number: CN215550378U
Application number: CN202022570344.XU
Authority: CN
Inventors: 许卫民; 雷周桥; 刘鹏; 肖懿; 黎泽顺; 容敏智; 阮文红; 卢俊文
Original assignee: Guangdong Bosi Sci & Tech Co ltd
Current assignee: Guangdong Bosi Sci & Tech Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2022-01-18
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a feeding device. The feeding device comprises a hopper, a screw cylinder connected with the hopper, a feeding screw arranged in the screw cylinder and a liquid master batch conveying component communicated with the screw cylinder. The feeding device can uniformly mix the liquid master batch and the raw materials, uniformly mix the liquid master batch and the raw materials and extrude the mixture, so that the raw materials can be fully mixed and extruded.

Description

Feeding device

Technical Field

The utility model belongs to the technical field of injection molding, and particularly relates to a feeding device.

Background

The plastic is usually prepared by putting raw materials and foaming master batch into an extruder together for mixing and extruding, and finally obtaining a plastic finished product.

Currently, there are two main forms of foamed plastics produced using chemical blowing agents: the foaming agent is directly used, so that dust is easy to fly, potential safety hazards exist, and the environment is damaged. One is to use a foaming master batch. The foaming master batch is prepared by mixing an excessive foaming agent, a dispersing agent, a foaming auxiliary agent, a resin carrier and the like, and then carrying out plastication, sheet-pulling, granulation or extrusion granulation, and the foaming master batch enables the production of the foaming plastic to be more environment-friendly and simpler. However, the processing and use of the foamed masterbatch is still problematic. Firstly, the foaming master batch needs to mix resin carrier, foaming agent, dispersant, foaming auxiliary agent etc. together, kneads at a high speed, plastify the pulling-on piece and cut grain or extruder plastify and cut grain and form, and the process is loaded down with trivial details, the energy consumption is high, and the compounding process can cause dust pollution. Secondly, the plastication or extrusion process of the foaming master batch is limited by the characteristic that the foaming agent is easily decomposed at high temperature, and the product waste and even production safety problems are easily caused if the foaming agent is decomposed due to improper control of the processing process. Thirdly, when the foamed plastic is produced, the foaming master batch is added into the matrix resin granules or powder according to a certain proportion, and the uneven mixing of the materials can cause uneven dispersion of the foaming agent, easily cause uneven foam holes of the foamed plastic and the like.

If the liquid master batch is put into the extruder together with the raw materials from the hopper, the liquid master batch can be agglomerated in the hopper due to insufficient power, so that the raw materials are influenced to enter the extruder.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a feeding device.

The utility model realizes the purpose through the following technical scheme:

a feeding device comprises a hopper, a screw cylinder connected with the hopper, a feeding screw arranged in the screw cylinder and a liquid master batch conveying component communicated with the screw cylinder.

Foretell feeding device squeezes into a screw section of thick bamboo with liquid masterbatch through liquid masterbatch conveying component, mixes with the raw materials under the drive of twin-screw to make liquid masterbatch can with raw materials misce bene, extrude after the mixing, thereby the raw materials can be fully mixed and extruded.

In one embodiment, the liquid masterbatch conveying component comprises a feeding connector connected with the screw cylinder and a feeding pipe connected with the feeding connector.

In one embodiment, the liquid masterbatch conveying component further comprises a filtering component, and the filtering component is arranged at the position where the feeding joint is connected with the screw cylinder.

In one embodiment, the filter element is a screen.

In one embodiment, the feed screw is a twin screw.

In one embodiment, the twin screws include a first screw and a second screw, and the liquid masterbatch conveying member connects the screw barrels to the middle portions of the first screw and the second screw.

In one embodiment, a shearing component is arranged in the screw cylinder, and the liquid masterbatch conveying component is positioned between the hopper and the shearing component.

In one embodiment, the outlet end of the screw cylinder is connected with an injection molding machine or an extruder.

Drawings

FIG. 1 is a schematic structural diagram of a feeding device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of a feeding device according to an embodiment of the present invention;

fig. 3 is a sectional view of the feeding device shown in fig. 2.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments thereof will be described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" 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 as used herein are for illustrative purposes only and do not denote a unique embodiment.

Examples

Referring to fig. 1 and 2, a feeding device according to an embodiment of the present invention includes a hopper 10, a screw cylinder 20 connected to the hopper 10, a feeding screw 30 installed in the screw cylinder 20, and a liquid masterbatch conveying member 40 communicated with the screw cylinder 20.

In use, solid raw materials (powder) enter the screw cylinder 20 from the hopper 10, and liquid foaming master batch enters the screw cylinder 20 from the liquid master batch conveying component 40, so that the two materials are combined in the screw cylinder 20 and are mixed together under the driving of the feeding screw 30.

The hopper 10 is tapered to facilitate the initial introduction of material.

The screw cylinder 20 is arranged in a cylinder shape, the feeding screw 30 is arranged in the screw cylinder, the feeding screw 30 is driven by the motor 50 to rotate, and the motor 50 can be arranged at the end part of the screw cylinder 20 so as to drive the feeding screw 30 conveniently.

Referring to fig. 1, the outlet end of the screw barrel 20 is connected to an injection molding machine or extruder 60. The mixed material is fed into an injection molding machine or extruder 60 for extrusion.

Referring to fig. 2, in an embodiment, a shearing unit 21 is disposed in the screw cylinder 20, and the shearing unit 21 is used for mixing and shearing the material.

The feed screw 30 may be of the single screw type or of the twin screw type, selected according to the extrusion material requirements.

The feeding screw 30 is connected with a motor 31, and the feeding screw 30 is driven by the motor 31 to work. The rotating speed of the motor 31 is 30r/min-240 r/min.

In this embodiment, the feeding screw 30 is a twin screw. The twin screw includes a first screw and a second screw.

In one embodiment, the gap between the outer wall of the feeding screw 30 and the inner wall of the screw barrel 20 is 1mm to 5 mm.

In one embodiment, shear member 50 is disposed within screw barrel 20. The shearing component 50 is used for shearing the materials, so that the materials are more uniform.

In one embodiment, the liquid masterbatch conveying member 40 is located between the hopper 10 and the shearing member 50. Such structure setting makes liquid masterbatch can be sheared with the material together after getting into screw cylinder 20, mixes more evenly after the shearing. If the liquid mother material conveying member 40 is provided behind the shearing member 50, the raw material can be sheared while the liquid mother material cannot be sheared, and the uniformity is not good enough.

In one embodiment, the liquid masterbatch conveying member 40 is connected to the middle section of the screw barrel 20.

In one embodiment, the feeding device further comprises a base, which connects the screw cylinder 20 and the injection molding machine or the extruder 60, so that the screw cylinder 20 is fixed on the injection molding machine or the extruder 60, and continuous feeding and extrusion are realized.

Referring to fig. 1 and 3, in one embodiment, the liquid masterbatch conveying member 40 includes a feeding connector 41 connected to the screw cylinder 20 and a feeding pipe 42 connected to the feeding connector 41. The feeding pipe 42 is connected with a liquid master batch container, and the liquid master batch enters the screw cylinder 20 through the feeding pipe 42 and the feeding connector 41 in sequence and then is uniformly mixed with the raw materials in the screw cylinder 20 under the driving of the feeding screw 30.

The feeding pipe 42 is made of oil-resistant, corrosion-resistant and high-temperature-resistant materials, so that the service life of the feeding pipe is prolonged, and the feeding pipe is suitable for different liquid masterbatches.

Referring to fig. 3, in an embodiment, the liquid masterbatch conveying member 40 is connected to the screw cylinder 20 at a position corresponding to the middle of the first screw and the second screw. Therefore, the liquid master batch can enter the first screw and the second screw from the middle, and the mixing is more uniform. If the screw barrel 20 is entered from the position of only one of the screws, it may be entered into only one of the screws, and the uniformity after mixing is slightly poor.

Referring to fig. 1 and 3, in one embodiment, the liquid masterbatch conveying member 40 further includes a filter member 43, and the filter member 43 is disposed at a position where the feeding connector 41 is connected to the screw barrel 20. Adopt the large granule material in the filter unit can the filtering liquid masterbatch for the material degree of consistency that gets into in the screw rod section of thick bamboo 20 is better, thereby the product of preparation is more even, can also prevent that solid starting material's powder from spilling from feed joint 41.

In one embodiment, the filtering component 43 is a filter net. Of course, the filter member 43 may have another structure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A feeding device is characterized by comprising a hopper, a screw cylinder connected with the hopper, a feeding screw arranged in the screw cylinder and a liquid master batch conveying component communicated with the screw cylinder; the liquid master batch conveying component comprises a feeding connector connected with the screw cylinder and a feeding pipe connected with the feeding connector.

2. The feeding device according to claim 1, wherein the liquid masterbatch delivery member further comprises a filter member provided at a portion where the feeding nipple is connected to the screw barrel.

3. Feeding device according to claim 2, characterised in that the filter element is a sieve.

4. Feeding device according to claim 1, characterized in that the feeding screw is a twin screw.

5. The feeding device according to claim 4, wherein the twin screws include a first screw and a second screw, and a liquid masterbatch conveying member connects the screw barrels corresponding to intermediate portions of the first screw and the second screw.

6. The feeding device of claim 1, wherein a shearing member is provided in the screw barrel, and the liquid masterbatch conveying member is located between the hopper and the shearing member.

7. Feeding device according to claim 1, characterized in that the outlet end of the screw barrel is connected to an injection molding machine or an extruder.