CN216230273U

CN216230273U - Vacuum hopper for preventing powder from being stuck and blocked

Info

Publication number: CN216230273U
Application number: CN202122820538.5U
Authority: CN
Inventors: 陈波
Original assignee: Zhangjiagang Wolter Precision Machinery Co ltd
Current assignee: Zhangjiagang Wolter Precision Machinery Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-04-08
Anticipated expiration: 2031-11-17

Abstract

The application discloses prevent vacuum hopper of powder bonding jam, including the hopper body, the cylinder is installed on the inner chamber top of hopper body, install the back shaft on the output of cylinder, the one end that the cylinder was kept away from to the back shaft is installed horizontally circular baffle, the cylinder output promotes circular baffle and reciprocates, circular baffle's circumference evenly is equipped with multiunit gas injection box, gas injection box's jet orifice is around the inner chamber of hopper body, gas injection box upper end is connected with the bellows, hopper body bottom is connected with down the feed cylinder, one side of feed cylinder has connect the evacuation pipe down, the other end of evacuation pipe is connected with the vacuum pump, first filter screen subassembly is installed to the one end that the evacuation pipe is close to down the feed cylinder, the filtration pore diameter of first filter screen subassembly is less than the diameter of powder granule, still install the second filter screen subassembly between vacuum pump and the first filter screen subassembly. This application can prevent that powder material adhesion when unloading in the vacuum hopper from blockking up to can clean filtration impurity to the material.

Description

Vacuum hopper for preventing powder from being stuck and blocked

Technical Field

The application relates to the technical field of powder dehumidification dryers, in particular to a vacuum hopper for preventing powder from being bonded and blocked.

Background

In the processing and production process of plastics, the phenomena of shrinkage, silver streaks, bubbles, cracks, flow marks, poor transparency and the like of plastic products occur, and the main reason of the poor quality is that the plastic is not fully dried before being molded, and engineering plastics are as follows: the traditional hot air dryer cannot completely dry the plastic granules because moisture permeates into the plastic granules, practice proves that the moisture content of the plastic granules is reduced to be below 0.02 percent before forming by reducing the dew point of drying air to below-40 ℃ and simultaneously controlling the heat to blow the plastic granules to the surfaces of the plastic granules containing moisture, and the moisture removal dryer fully removes and heats air in a closed circulating system, and the moisture in the plastic granules is rapidly and completely separated out by the dried air so as to achieve the effect of moisture removal and drying. The working principle is as follows: 1. the dehumidifying and drying part cools damp and hot air returning from the drying material barrel, blows the damp and hot air into the honeycomb rotating wheel, moisture in the air is adsorbed by the rotating wheel and then desorbed by the regenerative heating air, two air flows act on the rotating wheel simultaneously and rotate along with the rotating wheel, so that the moisture in the air is continuously adsorbed and desorbed by the regenerative air and is discharged, stable low dew point air is formed, the air is heated to the drying temperature of plastics and blown into the drying material barrel, and a closed cycle is formed to dry raw materials; 2. the material sucking part sucks materials from the storage bucket or other storage bin containers into the drying bucket, when a switch in the drying bucket detects that no materials exist, the vacuum pump operates to enable the vacuum hopper to generate vacuum, the raw materials in the storage bucket are sucked into the vacuum hopper due to the pressure difference of air, and after the material sucking time is finished, the vacuum pump stops operating, and the raw materials fall into the drying bucket due to self weight. The dried raw material is pumped from the drying barrel to a hopper arranged in a plastic molding machine. The existing vacuum hopper has the following defects: 1. the process of plastic powder crystallization is also accompanied in the drying material barrel, no dust impurity is generated in the vacuum hopper, the filtering and adsorbing functions are realized, and the product quality in the crystallization and drying process is reduced; 2. the raw material is plastic powder with high hygroscopicity, so that the plastic powder is easy to adhere to the inner wall of the hopper when being placed in the vacuum hopper; accordingly, there is a need for improvements in the vacuum hoppers of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vacuum hopper for preventing powder from being stuck and blocked so as to overcome the defects in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the embodiment of the application discloses prevent vacuum hopper that powder bonds and blocks up, including the hopper body, its characterized in that: the feeding device comprises a hopper body, a feeding pipe is arranged on one side of the hopper body, an air cylinder is arranged at the top end of an inner cavity of the hopper body, a supporting shaft is arranged at the output end of the air cylinder, a horizontal circular baffle is arranged at one end, away from the air cylinder, of the supporting shaft, the output end of the air cylinder pushes the circular baffle to move up and down, a plurality of groups of air injection boxes are uniformly arranged in the circumferential direction of the circular baffle, jet orifices of the air injection boxes face to the periphery of the inner cavity of the hopper body, telescopic hoses are connected to the upper ends of the air injection boxes and connected with an air blower outside the hopper body, a lower charging barrel is connected to the bottom end of the hopper body, a vacuum pipe is connected to one side of the lower charging barrel, the other end of the vacuum pipe is connected with a vacuum pump, a first filter screen assembly is arranged at one end, close to the lower charging barrel, and the aperture of a filter hole of the first filter screen assembly is smaller than the diameter of powder particles, still install the second filter screen subassembly between the vacuum pump with the first filter screen subassembly, the feed cylinder bottom is equipped with the unloading valve down, there is gravity inductor lower extreme according to having.

Preferably, in the vacuum hopper for preventing powder adhesion blockage, the support shaft is located at the center of the circular baffle.

Preferably, in the above vacuum hopper for preventing powder adhesion blockage, the connection between the feed pipe and the hopper body is in a bell mouth shape with gradually increasing diameter.

Preferably, in the above vacuum hopper for preventing powder adhesion blockage, a feed valve is further installed at the feed pipe.

Preferably, in the vacuum hopper for preventing powder adhesion blockage, the first filter screen assembly and the second filter screen assembly are detachably mounted.

Preferably, in the vacuum hopper for preventing powder adhesion blockage, the number of the air injection boxes is 8.

Preferably, in the above vacuum hopper for preventing powder adhesion blockage, the diameter of the circular baffle is smaller than that of the feeding barrel.

Compared with the prior art, the utility model has the advantages that:

according to the utility model, the powder particles in the vacuum hopper are adsorbed and filtered through the first filter screen component, the aperture of the filter holes of the first filter screen component is smaller than the diameter of the powder particles, the powder particles cannot pass through the filter screen, and the second filter screen component can effectively collect dust impurities mixed in the powder; through the vertical output end of the cylinder and the baffle gas injection box used in a matched mode, powder materials are pushed to enter the drying charging bucket.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a vacuum hopper for preventing powder adhesion blockage in an embodiment of the present invention.

Wherein: 1-a hopper body, 2-a feeding pipe, 3-a cylinder, 4-a supporting shaft, 5-a circular baffle, 6-an air injection box, 7-a flexible hose, 8-a blower, 9-a discharging barrel, 10-a vacuumizing pipe, 11-a first filter screen component, 12-a vacuum pump, 13-a second filter screen component, 14-a discharging valve, 15-a gravity sensor and 16-a feeding valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1, the vacuum hopper for preventing powder adhesion blocking in the embodiment includes a hopper body 1, a feeding pipe 2 is disposed on one side of the hopper body 1, an air cylinder 3 is mounted at the top end of an inner cavity of the hopper body 1, a supporting shaft 4 is mounted on an output end of the air cylinder 3, a horizontal circular baffle 5 is mounted at one end of the supporting shaft 4 away from the air cylinder 3, the output end of the air cylinder 3 pushes the circular baffle 5 to move up and down, a plurality of groups of air injection boxes 6 are uniformly arranged in the circumferential direction of the circular baffle 5, injection ports of the air injection boxes 6 face the periphery of the inner cavity of the hopper body 1, an upper end of the air injection box 6 is connected with a flexible hose 7, the flexible hose 7 is connected with an air blower 8 outside the hopper body 1, a lower charging barrel 9 is connected to the bottom end of the hopper body 1, a vacuum tube 10 is connected to one side of the lower charging barrel 9, the other end of the vacuum tube 10 is connected with a vacuum pump 12, a first filter screen assembly 11 is mounted at one end of the vacuum tube 10 close to the lower charging barrel 9, the aperture of the filter hole of the first filter screen component 11 is smaller than the diameter of the powder particles, a second filter screen component 13 is further installed between the vacuum pump 12 and the first filter screen component 11, a discharging valve 14 is arranged at the bottom end of the discharging barrel 9, and a gravity sensor 15 is arranged at the upper end of the discharging valve 14.

In the technical scheme, the circular baffle 5 is pushed to move through the vertical output end of the air cylinder 3 so as to push powder materials to enter a drying material barrel below, and the air injection box 6 simultaneously injects air, so that the powder materials adhered to the inner wall of the vacuum hopper 1 fall into the drying material barrel; carry out adsorption filtration through first filter screen subassembly 11 powder granule in to vacuum hopper, the filtration pore aperture of first filter screen subassembly 11 is less than the diameter of powder granule, and the powder granule can't pass through the filter screen, avoids powder material jam in vacuum tube 10, and the second filter screen subassembly 13 that sets up can effectively be collected the dust impurity that mix with in the powder, and gravity inductor 15 can set up the weight of unloading once.

Further, the supporting shaft 4 is positioned at the center of the circular baffle 5.

Furthermore, the junction of the feeding pipe 2 and the hopper body 1 is in a horn mouth shape with gradually increased diameter, so that the material is prevented from being blocked in the feeding pipe 2 during material suction.

Further, a feeding valve 16 is installed at the feeding pipe 2 for controlling the feeding amount.

Further, first filter screen subassembly 11 and second filter screen subassembly 13 are demountable installation, are convenient for change the filter screen subassembly to the powder plastics of different particle diameters to impurity in the better clean filter powder.

Further, there are 8 sets of the air jet cartridges 6.

Further, the diameter of the circular baffle 5 is smaller than that of the lower charging barrel 9, and the circular baffle 5 can extend into the lower charging barrel 9 to push the material to fall into the drying charging barrel.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a detailed description of the present application, and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present application, and these should also be considered as the protection scope of the present application.

Claims

1. The utility model provides a prevent vacuum hopper of powder bonding jam, includes the hopper body, its characterized in that: the feeding device comprises a hopper body, a feeding pipe is arranged on one side of the hopper body, an air cylinder is arranged at the top end of an inner cavity of the hopper body, a supporting shaft is arranged at the output end of the air cylinder, a horizontal circular baffle is arranged at one end, away from the air cylinder, of the supporting shaft, the output end of the air cylinder pushes the circular baffle to move up and down, a plurality of groups of air injection boxes are uniformly arranged in the circumferential direction of the circular baffle, jet orifices of the air injection boxes face to the periphery of the inner cavity of the hopper body, telescopic hoses are connected to the upper ends of the air injection boxes and connected with an air blower outside the hopper body, a lower charging barrel is connected to the bottom end of the hopper body, a vacuum pipe is connected to one side of the lower charging barrel, the other end of the vacuum pipe is connected with a vacuum pump, a first filter screen assembly is arranged at one end, close to the lower charging barrel, and the aperture of a filter hole of the first filter screen assembly is smaller than the diameter of powder particles, still install the second filter screen subassembly between the vacuum pump with the first filter screen subassembly, the feed cylinder bottom is equipped with the unloading valve down, there is gravity inductor lower extreme according to having.

2. The vacuum hopper for preventing powder adhesion blockage according to claim 1, is characterized in that: the supporting shaft is positioned at the circle center of the circular baffle.

3. The vacuum hopper for preventing powder adhesion blockage according to claim 1, is characterized in that: the connecting part of the feeding pipe and the hopper body is in a horn mouth shape with gradually increased diameter.

4. The vacuum hopper for preventing powder adhesion blockage according to claim 1, is characterized in that: and a feed valve is also arranged at the feed pipe.

5. The vacuum hopper for preventing powder adhesion blockage according to claim 1, is characterized in that: the first filter screen assembly and the second filter screen assembly are detachably mounted.

6. The vacuum hopper for preventing powder adhesion blockage according to claim 1, is characterized in that: the gas jet box has 8 groups.

7. The vacuum hopper for preventing powder adhesion blockage according to claim 1, is characterized in that: the diameter of the circular baffle is smaller than that of the lower charging barrel.