CN213079050U

CN213079050U - A sealing device for moulding powder screening

Info

Publication number: CN213079050U
Application number: CN202021363848.8U
Authority: CN
Inventors: 应辰骏
Original assignee: Yongkang Chenma Industry And Trade Co Ltd
Current assignee: Yongkang Chenma Industry And Trade Co Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-04-30
Anticipated expiration: 2030-07-13

Abstract

The utility model discloses a sealing device for moulding powder screening, including screening room, unloading room, pan feeding mouth and discharge gate, still include base and screening subassembly, the screening subassembly include cylindric screen cloth, motor, pivot and propeller blade, cylindric screen cloth slope set up in the screening room, the pivot setting in cylindric screen cloth and with the coaxial setting of cylindric screen cloth, the pivot is passed through the belt and is connected with the motor, propeller blade center on and be fixed in the pivot, the pan feeding mouth set up the higher end at the cylindric screen cloth, there are two closing plates lower extreme inboard through hinged joint of pan feeding mouth, the closing plate is through replying the lateral wall of spring coupling pan feeding mouth, the discharge gate lower extreme is provided with the elastic rubber circle. Has the advantages that: the feed inlet department is provided with the closing plate, moulds the whitewashed dust and from feed inlet department departure when preventing to screen, and the discharge gate lower extreme is provided with the elastic rubber circle, can overlap tightly at moulding the powder barrel port, avoids discharge gate department to mould whitewashed dust departure.

Description

A sealing device for moulding powder screening

Technical Field

The utility model belongs to the technical field of the sieving mechanism, concretely relates to a sealing device for moulding powder screening.

Background

The powder paint is a formula material which is prepared by using synthetic resin as a base material and matching with pigment and filler, is a novel decorative material which is rapidly developed in recent years, and has the characteristics of energy conservation, low pollution, high efficiency, high performance and the like. As a solvent-free coating, the paint has high coating efficiency and good corrosion resistance, can form a film once, is convenient to store and transport, and is increasingly popular. The thermoplastic powder coating is prepared by dry mixing or melt mixing, crushing, sieving and grading thermoplastic resin, pigment, filler, plasticizer, stabilizer and the like. In the process of producing molding powder, a method of grinding plastic sheets or plastic particles to form molding powder is generally adopted, the particle size of the ground molding powder has a large error range due to the limitation of equipment precision, the particle size of the molding powder has an important influence on the performance of the coating, and in order to keep the good performance of the coating, the particle size of the molding powder needs to be kept within a certain range, so that grading equipment is needed to screen and grade the molding powder. In the process of sieving the molding powder, the dust of the molding powder can fly out of the sieving machine, which wastes the molding powder and influences the environment.

The high-efficiency plastic powder screening device with the publication (announcement) number of CN205868745U comprises a case, a feeding funnel, a first screening device, a first sieve plate, a second screening device, a second sieve plate, a driving wheel and a motor, wherein a plurality of sliding grooves are formed in the case, the first screening device and the second screening device are installed in the sliding grooves, a scraping plate is arranged in the first screening device, the cross section of the scraping plate is annular, a plurality of first scraping strips and second scraping strips are arranged on the inner wall of the scraping plate, the first sieve plate is installed below the first screening device, the second sieve plate is installed below the second screening device, a plurality of driving teeth are arranged on the outer walls of the first screening device and the second screening device, the driving wheel is matched with the driving teeth, the driving wheel is installed on the motor through a driving shaft, a plurality of discharging hoppers are arranged on the outer wall of the case, the plastic powder particles with relatively consistent sizes can be obtained, the plastic powder can be classified, the operation is simple, and the screening efficiency is high. Above-mentioned scheme can improve the screening efficiency of moulding the powder, but its dust of moulding the powder at the in-process of screening can follow pay-off funnel and go out hopper department departure, influences the environment, and extravagant moulding powder.

Therefore, the utility model provides a sealing device for moulding powder screening in town.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the dust of moulding the powder in the powder screening process flies around from feed inlet and discharge gate department among the prior art, extravagant moulding the powder, influences the environment.

In order to achieve the purpose, the utility model provides a sealing device for plastic powder screening, which comprises a screening chamber, a discharging chamber arranged at the lower end of the screening chamber, a feeding port arranged at the upper end of the screening chamber, a discharging port arranged at the lower end of the discharging chamber, a base and a screening assembly, wherein the screening assembly comprises a cylindrical screen, a motor, a rotating shaft and a spiral blade, the cylindrical screen is obliquely arranged in the screening chamber, the rotating shaft is arranged in the cylindrical screen and is coaxially arranged with the cylindrical screen, the rotating shaft is connected with the motor through a belt, the spiral blade surrounds and is fixed on the rotating shaft, the feeding port is arranged at the higher end of the cylindrical screen, the inner side of the lower end of the feeding port is connected with two sealing plates through hinges, the sealing plates are connected with the side wall of the feeding port through a return spring, the lower end of the discharging port is provided with an elastic rubber ring, the base comprises a support column, a spiral spring sleeved on the support column and a support plate fixed on the support column, and the blanking chamber and the motor are fixed on the support plate.

Further, in the technical scheme disclosed in the utility model, the lower end department of cylindric screen cloth is provided with the grinding room with the screening room intercommunication.

Further, the utility model discloses an among the technical scheme, grind the room including grinding the entry, grinding the roller and grinding the export, grinding export and unloading room intercommunication, and be equipped with the filter screen in the grinding export, the filter screen slope set up, and the lower end of filter screen orientation is to the unloading room.

Further, in the technical scheme disclosed by the utility model, the inclination angle of the horizontal plane of the cylindrical screen is 15-20 degrees.

Further, in the technical scheme disclosed in the utility model, cylindric screen cloth lower extreme be equipped with the electromagnetic shaker, the extension board under be provided with the vibrations cylinder on the terminal surface.

Furthermore, in the technical solution disclosed in the present invention, the vibrator is an electromagnetic vibrator.

Further, the utility model discloses an among the technical scheme, the length of two closing plates equals the length of pan feeding mouth, and the width sum of two closing plates equals the width of pan feeding mouth.

The utility model has the advantages that: 1. the sealing plate is arranged at the feed inlet, so that plastic powder dust can be prevented from flying out of the feed inlet during screening, the elastic rubber ring is arranged at the lower end of the discharge outlet and can be tightly sleeved at the end opening of the plastic powder barrel, and the plastic powder dust at the discharge outlet can be prevented from flying out; 2. the cylindrical screen is driven by the motor to carry out screening, so that the screening efficiency is high; 3. set up special grinding chamber, directly grind the coarse fodder that sieves out, save the process, improved production efficiency.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is the structure schematic diagram of the plastic powder screening and sealing device of the utility model.

Wherein, the corresponding relation between the reference signs and the component names is as follows: 1 screening room, 2 unloading rooms, 3 pan feeding mouths, 4 discharge gates, 5 bases, 6 grinding rooms, 7 screening components, 8 cylindrical screen cloth, 9 motors, 10 rotating shafts, 11 helical blades, 12 sealing plates, 13 return springs, 14 elastic rubber rings, 15 pillars, 16 helical springs, 17 support plates, 18 filter screens, 19 vibrators and 20 vibrating cylinders.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention based on the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

In the prior art, the molding powder screening equipment is not provided with a sealing device, and the molding powder dust can scatter everywhere during screening, so that the molding powder is wasted and the environment is influenced.

In order to solve the technical problem, the utility model discloses a sealing device for screening plastic powder, which comprises a screening chamber 1, a discharging chamber 2 arranged at the lower end of the screening chamber 1, a feeding port 3 arranged at the upper end of the screening chamber 1, a discharging port 4 arranged at the lower end of the discharging chamber 1, a base 5 and a screening assembly 7, wherein the screening assembly 7 comprises a cylindrical screen 8, a motor 9, a rotating shaft 10 and a screw blade 11, the cylindrical screen 8 is obliquely arranged in the screening chamber 1, the rotating shaft 10 is arranged in the cylindrical screen 8 and is coaxial with the cylindrical screen 8, the rotating shaft 10 is connected with the motor 9 through a belt, the screw blade 11 is surrounded and fixed on the rotating shaft 10, the feeding port 3 is arranged at the higher end of the cylindrical screen 8, the inner side of the lower end of the feeding port 3 is connected with a sealing plate 12 through a hinge, the sealing plate 12 is connected with the side wall of the feeding port 3 through a return spring 13, the lower end of the discharge hole 4 is provided with an elastic rubber ring 14, the base 5 comprises a support post 15, a spiral spring 16 sleeved on the support post 15 and a support plate 17 fixed on the support post 15, and the blanking chamber 2 and the motor 9 are fixed on the support plate 17.

Further, among the technical scheme disclosed in the utility model, the lower end department of cylindric screen cloth 8 is provided with the grinding room 6 with screening room 1 intercommunication for directly grind the coarse fodder of screening out, reduce the process.

Further, the utility model discloses an among the technical scheme, grind room 6 including grinding the entry, grinding the roller and grinding the export, grinding export and unloading room 2 intercommunication, and be equipped with filter screen 18 in the grinding export, filter screen 18 slope set up, and the lower end of filter screen 18 orientation is to unloading room 2. The obliquely arranged filter screen 18 not only can play a role of filtering, but also facilitates the flow of the ground plastic powder to the blanking chamber 2.

Further, in the technical scheme disclosed by the utility model, the inclination angle of the horizontal plane of the cylindrical screen 8 is 15-20 degrees. Pan feeding mouth 3 sets up the higher end at cylindric screen cloth 8, and the coarse fodder piles up in the cylindric screen cloth 8 that the level set up easily, dies 11 blocks of propeller blade and produces the friction with cylindric screen cloth 8 and accelerate cylindric screen cloth 8's wearing and tearing, reduces cylindric screen cloth 8's life easily, and the cylindric screen cloth 8 that the slope set up makes things convenient for the coarse fodder very first time to discharge grinding chamber 6, and the coarse fodder can not pile up in cylindric screen cloth 8.

Further, in the technical scheme disclosed in the utility model, cylindric screen cloth 8 lower extreme be equipped with electromagnetic shaker 19, extension board 17 under be provided with vibrations cylinder 20 on the terminal surface, electromagnetic shaker 19 is the electromagnetic shaker. The vibration cylinder 20 drives the support plate 17 to vibrate, and the vibrator 19 can drive the cylindrical screen 8 to vibrate, so that qualified coatings on the cylindrical screen 8 and the filter screen 18 can be promoted to pass through quickly, and the production efficiency is improved.

Further, in the technical scheme disclosed in the utility model, the length of two closing plates 12 equals the length of pan feeding mouth 3, and the sum of the width of two closing plates 12 equals the width of pan feeding mouth 3. So that the sealing plate 12 can completely seal the feed opening 3 when no feed is being fed.

In the embodiment, when the plastic powder is fed from the feeding port 3, after the plastic powder is fed, the sealing plate 12 is opened downwards under the action of the gravity of the plastic powder, the plastic powder enters the cylindrical screen 8, after the plastic powder enters, the sealing plate 12 returns to the initial sealing state under the action of the return spring 13, the motor 9 drives the cylindrical screen 8 to screen, the qualified plastic powder enters the discharging chamber 2, coarse materials enter the grinding chamber 6 to be ground, the coarse materials are filtered by the filter screen 18 after being ground, the qualified plastic powder enters the discharging chamber 2, the qualified plastic powder in the discharging chamber 2 is discharged from the discharging port 4 and filled in a plastic powder barrel, the elastic rubber ring 14 is arranged at the lower end of the discharging port 4, and the barrel port of the plastic powder barrel is tightly sleeved by the elastic rubber ring 14 during discharging. Screening installation is whole sealed, and pan feeding mouth 3 sets up closing plate 12, moulds the powder dust and can not fly off from pan feeding mouth 3 when cylindric screen cloth 8 rotates the screening, and discharge gate 4 lower extreme is provided with the elastic rubber circle 14 that the cover tightly moulded the powder bucket bung hole, and the dust also can not take place to fly off during the blowing, and is sealed effectual, can not cause to mould the powder extravagant that flies off, influences the environment.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims

1. A sealing device for plastic powder screening comprises a screening chamber (1), a discharging chamber (2) arranged at the lower end of the screening chamber (1), a feeding port (3) arranged at the upper end of the screening chamber (1) and a discharging port (4) arranged at the lower end of the discharging chamber (2), and is characterized by further comprising a base (5) and a screening assembly (7), wherein the screening assembly (7) comprises a cylindrical screen (8), a motor (9), a rotating shaft (10) and a screw blade (11), the cylindrical screen (8) is obliquely arranged in the screening chamber (1), the rotating shaft (10) is arranged in the cylindrical screen (8) and is coaxial with the cylindrical screen (8), the rotating shaft (10) is connected with the motor (9) through a belt, the screw blade (11) surrounds and is fixed on the rotating shaft (10), the feeding port (3) is arranged at the higher end of the cylindrical screen (8), the lower extreme inboard of pan feeding mouth (3) has two closing plates (12) through hinged joint, the lateral wall of pan feeding mouth (3) is connected through answer spring (13) in closing plate (12), discharge gate (4) lower extreme is provided with elasticity rubber circle (14), base (5) include pillar (15), suit spiral spring (16) on pillar (15) and fix extension board (17) on pillar (15), unloading room (2) and motor (9) are fixed on extension board (17).

2. A sealing device for moulding powder screening according to claim 1, characterized in that the lower end of the cylindrical screen (8) is provided with a grinding chamber (6) communicating with the screening chamber (1).

3. The sealing device for plastic powder screening according to claim 2, wherein the grinding chamber (6) comprises a grinding inlet, a grinding roller and a grinding outlet, the grinding outlet is communicated with the discharging chamber (2), a filter screen (18) is arranged on the grinding outlet, the filter screen (18) is obliquely arranged, and the lower end of the filter screen (18) faces the discharging chamber.

4. A sealing device for molding powder sifting according to claim 1 or 2, characterized in that the inclination of the horizontal plane of the cylindrical screen (8) is 15 ° to 20 °.

5. The sealing device for plastic powder screening according to claim 1, wherein the cylindrical screen (8) is provided with a vibrator (19) at the lower end, and the support plate (17) is provided with a vibrating cylinder (20) at the lower end surface.

6. A sealing device for molding powder screening according to claim 5, characterized in that the vibrator (19) is an electromagnetic vibrator.

7. The sealing device for plastic powder screening according to claim 1, characterized in that the length of the two sealing plates (12) is equal to the length of the feeding opening (3), and the sum of the widths of the two sealing plates (12) is equal to the width of the feeding opening (3).