CN115246175A

CN115246175A - Production system of plastic granules

Info

Publication number: CN115246175A
Application number: CN202211013321.6A
Authority: CN
Inventors: 胡英绪; 郭争光
Original assignee: Zhejiang Najie New Material Technology Co ltd
Current assignee: Zhejiang Najie New Material Technology Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-10-28
Anticipated expiration: 2042-08-23
Also published as: CN115246175B

Abstract

The application discloses a plastic particle production system, which comprises a plastic extrusion device, a material cooling device, material air drying equipment, a splitting device, a material distribution device and a material homogenizing device, wherein the material cooling device comprises a water tank and an adjusting and conveying device arranged on the water tank, the adjusting and conveying device comprises a plurality of adjusting supports and conveying rollers, each adjusting support comprises a group of mounting seats matched with two side edges of the water tank and adjustable support arms respectively arranged on the corresponding mounting seats, and two ends of each conveying roller are respectively hinged to the corresponding adjustable support arms; the adjusting brackets are provided with a forward mounting state integrally positioned above the water tank and a reverse mounting state integrally positioned in the water tank, and conveying rollers of the adjusting brackets respectively bear and/or press materials to form a conveying path; according to the technical scheme, the design optimization of the plastic particle production system is realized, the whole process optimization in the plastic particle production process is realized, and the production efficiency is effectively improved.

Description

Production system of plastic granules

Technical Field

The application relates to the field of plastic production equipment, in particular to a production system of plastic particles.

Background

The production of the modified plastic changes the dependence of industries such as automobiles, household appliances, daily necessities and the like on steel materials, and makes the modern industry step forward a solid step towards the direction of lighter weight, more energy conservation and more environmental protection. The existing production method of modified plastics is to produce plastic particle raw materials (modified or dyed) through an extrusion granulation production line, and then to form the raw materials through injection molding, blow molding, extrusion, wire drawing, plastic suction and other methods to produce various plastic products. The modified plastic extrusion granulation production line in the prior art comprises three devices, namely a plastic extruder, a cooling device and a granulator, wherein the cooling device is also provided with a moisture absorption machine. At present, plastic extruders are widely used in the production of plastic products. The plastic extruder heats and melts the raw materials, and after the raw materials are extruded by the plastic extruder, the strip-shaped plastic is extruded from the machine head of the plastic extruder, the strip-shaped plastic enters the granulator after being cooled, the strip-shaped plastic is made into plastic particles with specified sizes by the granulator, and then the plastic particles are sieved according to preset sizes to respectively complete packaging, transportation and storage.

The inventor finds that the existing production equipment has certain optimization space at each stage of production, and the overall limitation on the production capacity is in urgent need of improvement.

Disclosure of Invention

In order to solve the above technical problem, the present application discloses a production system of plastic granules, including:

the plastic extrusion device is used for providing strip-shaped materials;

the material cooling device is used for cooling the strip-shaped materials and comprises a water tank for containing cooling media and an adjusting and conveying device arranged on the water tank, the adjusting and conveying device comprises a plurality of adjusting supports and conveying rollers, each adjusting support comprises a group of mounting seats matched with two side edges of the water tank and adjustable supporting arms respectively arranged on the corresponding mounting seats, and two ends of each conveying roller are respectively hinged to the corresponding adjustable supporting arms; the adjusting brackets are provided with a forward mounting state integrally positioned above the water tank and a reverse mounting state integrally positioned in the water tank, and the conveying rollers of the adjusting brackets respectively bear and/or press materials to form conveying paths;

the material air drying equipment is used for air drying the cooled strip-shaped materials, and comprises an air blower, an air pipe and a material tray, wherein the air blower is connected with a supporting surface, the air pipe extends from the air blower to a position away from the supporting surface, the material tray comprises a conveying roller and a water collecting tank, the conveying roller is used for supporting the materials, the water collecting tank is arranged below the conveying roller, the water collecting tank is fixed on the side wall of the air pipe, an air outlet is formed in one end, away from the air blower, of the air pipe, and air flow output by the air outlet enters the water collecting tank after passing through the conveying roller;

the cutting device is used for cutting the dried strip-shaped materials into plastic particles;

the material distribution device is used for screening the cut materials according to particle sizes and comprises a base and a screening seat movably mounted on the base, wherein a screen, a material distribution port and a plurality of fixing assemblies are mounted on the screening seat, the screen is arranged on the screening seat and comprises a first screen, a second screen and a third screen which are sequentially stacked from top to bottom in the gravity direction, and the screening particle sizes of the first screen, the second screen and the third screen are sequentially reduced; the material distributing port comprises a first material distributing port arranged on the downstream of the first screen, a second material distributing port arranged on the downstream of the second screen and a third material distributing port arranged on the downstream of the third screen; the fixing assembly comprises a fixing arm arranged outside the screening seat, the fixing arm is provided with a working state and a corresponding release state for fixing the corresponding screen and the screening seat, and the fixing arm in the working state extends from the outside of the screening seat to the inside of the screening seat to be matched with the corresponding screen;

the homocline device for realize the transportation of material after the screening, the homocline device is including storage vat, pay-off pipeline and the pay-off fan that is used for acceping the material, the storage vat is including the discharge gate that is located the bottom, the pay-off pipeline is including the supply-air outlet of mutual intercommunication, pay-off entry and homocline export, the pay-off entry is used for accepting the material, the homocline export with the top intercommunication of storage vat, the pay-off fan with the supply-air outlet intercommunication and to input air is in order to order about the material in the pay-off pipeline the material pipeline internal motion.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative may be combined individually for the above general solution or between several alternatives without technical or logical contradictions.

Optionally, a feeding hopper for injecting materials into the screen is arranged above the screening seat, a screening cloth feeding device is arranged at an outlet of the feeding hopper, the screening cloth feeding device comprises a connecting plate fixed to the feeding hopper and a distribution structure arranged below the connecting plate, and the distribution structure comprises a plurality of first barrier strips extending towards the inside of the feeding hopper and second barrier strips extending away from the feeding hopper;

the first blocking strips and the second blocking strips are arranged adjacently at intervals in a first direction, and the materials are blocked by the distribution structure and distributed in the first direction and enter the screening seat through material passing gaps between the first blocking strips and the second blocking strips.

Optionally, the first barrier strip and the connecting plate are of an integral structure and are formed by bending the lower edge of the connecting plate; the second barrier strip and the connecting plate are of an integral structure and are formed by bending the lower edge of the connecting plate; the extending trends of the first barrier strips and the second barrier strips are mutually symmetrical by taking the connecting plate as a symmetry axis.

Optionally, the material distributing device further comprises:

the sliding seat is slidably arranged on the base;

the flexible connecting assemblies are arranged between the sliding seat and the screening seat in groups, each group of flexible connecting assemblies at least comprises two connecting members, each connecting member comprises a first connecting seat fixed on the sliding seat, a second connecting seat fixed on the screening seat and an elastic plate connected between the first connecting seat and the second connecting seat, and an included angle exists between a connecting line between the first connecting seat and the second connecting seat and the gravity direction and is a vibration process angle;

and the horizontal vibration source is arranged on the sliding seat and is used for driving the sliding seat to horizontally move and vibrate relative to the adaptation plane.

Optionally, the first connecting seat includes a first body fixedly connected to the sliding seat and a first connecting arm fixedly disposed on the first body, the first body is horizontally mounted, and an angle between a plane where the first connecting arm is located and a horizontal plane is equal to the vibration process angle;

the second connecting seat comprises a second body fixedly connected with the screening seat and a second connecting arm fixedly arranged on the second body, the second body is horizontally arranged, and the angle between the plane where the second connecting arm is located and the horizontal plane is equal to the vibration process angle;

the vibration process angle ranges from 15 degrees to 75 degrees.

Optionally, the mounting seat has an H-shaped cross section, and when the adjusting bracket is in a forward mounting state and a reverse mounting state, the side edges of the water tank are respectively matched with two opening regions of the H-shape.

Optionally, a set of adjustable arms is located between a set of mounting seats.

Optionally, the fixing assembly further comprises an upper supporting strip arranged on the inner wall of the screening seat, the side edge of the screen is pressed against the supporting strip, and the fixing arm and the supporting strip in the working state clamp the side edge of the screen;

the fixing arm is hinged to the side wall of the screening seat, the side wall of the screening seat is provided with an adaptive through hole for the fixing arm to penetrate through, the fixing arm further comprises a fastening rocker arm driving the fixing arm to move, and the fastening rocker arm is used for keeping the fixing arm in the working state.

Optionally, the feeding pipeline is of a three-way structure, and the feeding inlet is vertically arranged and bypasses a passage between the air supply outlet and the material homogenizing outlet; the feeding inlet is funnel-shaped and has smooth transition inside.

Optionally, the top of storage vat still is equipped with the pressure release tuber pipe, pressure release tuber pipe parcel has the filter bag.

The technical scheme disclosed in the application realizes the optimization of the whole process in the production process of the plastic particles through the design optimization of the production system of the plastic particles, and effectively improves the production efficiency.

Specific advantageous technical effects will be further explained in conjunction with specific structures or steps in the detailed description.

Drawings

FIG. 1 is a schematic view of a material cooling apparatus according to an embodiment;

FIG. 2 is a schematic sectional view of the material cooling apparatus shown in FIG. 1;

FIGS. 3 and 4 are schematic views of the adjusting carriage and the feed roller in different states;

FIG. 5 is a schematic diagram of a conveying path in the material cooling apparatus according to an embodiment;

FIG. 6 is a schematic view of the structure of a material seasoning apparatus in one embodiment;

FIG. 7 is a schematic diagram of the internal structure of a material tray of the material seasoning apparatus in FIG. 6;

FIG. 8 is a schematic view of the airflow direction of the material seasoning apparatus at another viewing angle;

FIG. 9 is a schematic view of the working state of the material seasoning apparatus in FIG. 6;

FIG. 10 is a schematic view of a material separating device in a first embodiment;

FIG. 11 is a schematic top view of the feed divider of FIG. 10;

FIG. 12 is a schematic cross-sectional view of the feed divider shown in FIG. 11;

FIG. 13 is an enlarged view of the mounting assembly of FIG. 12;

FIG. 14 is a schematic view of a second embodiment of a material divider;

FIG. 15 is a schematic cross-sectional view of the feed divider shown in FIG. 14;

FIG. 16 is a schematic view of the feed divider of FIG. 15 from another perspective;

FIG. 17 is a schematic view of a third embodiment of a material separating device;

FIGS. 18 and 19 are enlarged schematic views of the flex link assembly of FIG. 17 in different positions;

FIG. 20 is a side schematic view of the feed divider of FIG. 17;

FIG. 21 is an enlarged schematic view of the flexible connection assembly of FIG. 20;

FIG. 22 is a top schematic view of the feed divider of FIG. 17;

FIG. 23 is an enlarged schematic view of the flexible connection assembly of FIG. 22

FIG. 24 is a schematic view of a feed divider with an inlet screen cloth assembly in one embodiment;

FIG. 25 is a schematic view of the inlet screening arrangement of FIG. 24;

fig. 26 is a schematic bottom view of the inlet screening arrangement of fig. 25;

FIG. 27 is a partially enlarged schematic view of the distribution structure of FIG. 26;

FIG. 28 is a schematic side view of the input screening arrangement of FIG. 25;

FIG. 29 is a partially enlarged schematic view of the distribution structure of FIG. 28;

FIG. 30 is a schematic view of a homogenizing device according to an embodiment;

FIG. 31 is an enlarged view of the feeding line of the homogenizing device shown in the figure;

FIG. 32 is a schematic sectional view of a feeding pipeline of the homogenizing device in FIG. 31;

FIG. 33 is a schematic view of the operation of the homogenizing device in FIG. 30.

The reference numerals in the figures are illustrated as follows:

1. a water tank;

2. adjusting the conveying device;

3. adjusting the bracket; 31. a mounting seat; 32. the supporting arm can be adjusted; 321. an assembly hole; 33. a reinforcing bar; 4. a conveying roller; 41. a conveying ring groove;

5. a conveying path;

601. a blower; 602. an air duct; 603. an air outlet; 604. a conveying path; 605. a wind collecting cover; 606. a wind receiving end; 607. an air supply end; 610. a material tray; 611. a conveying roller; 612. a water collection tank; 613. a drain valve;

701. a storage barrel; 702. a discharge port; 703. a base; 704. a pressure relief air pipe; 710. a feed line; 711. an air supply outlet; 712. a feed inlet; 713. a material homogenizing outlet; 714. a control valve; 715. a feed outlet; 720. a feeding fan;

810. a base; 820. a sliding seat; 830. a screening seat; 840. a flexible connection assembly; 841. a connecting member; 8411. a first component; 8412. a second component; 8413. a third component; 842. a first connecting seat; 8421. a first body; 8422. a first connecting arm; 843. a second connecting seat; 8431. a second body; 8432. a second connecting arm; 844. an elastic plate; 845. a reinforcement; 850. feeding into a hopper; 860. feeding into a screening cloth device; 861. a connecting plate; 8611. a waist hole; 862. a distribution structure; 8621. a first barrier strip; 8622. a second barrier strip; 8623. a material passing gap; 863. a pulling part; 871. a first screen; 8711. a first screening section; 8712. a first transport section; 8713. observing the cavity; 872. a second screen; 873. a third screen; 874. a first material dividing port; 8741. a first material distribution buffer zone; 875. a second material dividing port; 8751. a second material distribution buffer zone; 876. a third material distributing port; 8761. a third material distribution buffer zone; 877. a lifting structure; 880. a fixing assembly; 881. a fixed arm; 882. a supporting strip; 883. a mating via; 884. the rocker arm is fastened.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that 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. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In general, the present application discloses a system for producing plastic granules, comprising:

the plastic extrusion device is used for providing strip-shaped materials;

the material cooling device is used for cooling strip-shaped materials and comprises a water tank for containing cooling media and an adjusting and conveying device arranged on the water tank, the adjusting and conveying device comprises a plurality of adjusting supports and conveying rollers, each adjusting support comprises a group of mounting seats matched with two side edges of the water tank and adjustable supporting arms respectively arranged on the corresponding mounting seats, and two ends of each conveying roller are respectively hinged to the corresponding adjustable supporting arms; the adjusting brackets are provided with a forward mounting state integrally positioned above the water tank and a reverse mounting state integrally positioned in the water tank, and the conveying rollers of the adjusting brackets respectively bear and/or press the materials to form a conveying path;

the material air drying equipment is used for air-drying the cooled strip-shaped materials, and comprises an air blower, an air pipe and a material tray, wherein the air blower is connected with the supporting surface, the air pipe extends from the air blower away from the supporting surface, the material tray comprises a conveying roller and a water collecting tank, the conveying roller is used for supporting the materials, the water collecting tank is arranged below the conveying roller, the water collecting tank is fixed on the side wall of the air pipe, an air outlet is formed in one end, away from the air blower, of the air pipe, and air flow output by the air outlet enters the water collecting tank after passing through the conveying roller;

the material distributing device is used for sieving the cut materials according to particle sizes and comprises a base and a sieving seat movably mounted on the base, wherein a screen, a material distributing port and a plurality of fixing assemblies are mounted on the sieving seat, the screen is arranged on the sieving seat, the screen comprises a first screen, a second screen and a third screen which are sequentially stacked from top to bottom in the gravity direction, and the sieving particle sizes of the first screen, the second screen and the third screen are sequentially reduced; the material distributing port comprises a first material distributing port arranged at the downstream of the first screen, a second material distributing port arranged at the downstream of the second screen and a third material distributing port arranged at the downstream of the third screen; the fixing assembly comprises a fixing arm arranged outside the screening seat, the fixing arm is provided with a working state and a corresponding releasing state for fixing the corresponding screen and the screening seat, and the fixing arm in the working state extends from the outside of the screening seat to the inside of the screening seat to be matched with the corresponding screen;

the material homogenizing device is used for conveying materials after screening, and comprises a storage barrel for accommodating the materials, a feeding pipeline and a feeding fan, wherein the storage barrel comprises a discharge port located at the bottom, the feeding pipeline comprises an air supply outlet, a feeding inlet and a homogenizing outlet which are communicated with each other, the feeding inlet is used for accommodating the materials, the homogenizing outlet is communicated with the top of the storage barrel, and the feeding fan is communicated with the air supply outlet and inputs airflow into the feeding pipeline to drive the materials to move in the feeding pipeline.

In order to better describe the detailed configuration of the entire system, each device will be described in sections hereinafter.

Referring to the attached drawings 1 to 4, the application discloses a material cooling device, which comprises a water tank 1 for containing cooling medium and an adjusting and conveying device 2 arranged on the water tank 1, wherein the adjusting and conveying device 2 comprises

A plurality of adjusting brackets 3, each of which comprises a group of mounting seats 31 matched with the two side edges of the water tank 1 and adjustable support arms 32 respectively arranged on the corresponding mounting seats 31,

the two ends of the conveying roller 4 are respectively hinged with the corresponding adjustable supporting arms 32;

the adjusting bracket 3 has a forward mounting state (refer to fig. 3) integrally located above the water tank 1 and a reverse mounting state (refer to fig. 4) integrally located inside the water tank 1, and the conveying rollers 4 of the adjusting brackets 3 respectively bear and/or press the materials to form a conveying path 5.

The support state of regulation can realize the regulation that the roll body compares in cooling medium relative position in basin 1, and the regulation range is far greater than the scheme among the prior art moreover to can realize more nimble collocation. Wholly see, the technical scheme that this application discloses sets up through adjusting conveyor 2, especially adjusts the different installation state setting of support 3, can realize the transport effect of material in a flexible way, and cooperation basin 1 sets up, provides the structural basis for improving the production system flexibility when guaranteeing the radiating effect.

As will be understood from the above description, the number and the positions of the adjusting brackets 3 can be flexibly matched with respect to the sink 1, and in the embodiment shown in the drawings, a plurality of adjusting brackets 3 are provided on the sink 1, and the distance between the adjusting brackets 3 is greater than or equal to the length of the adjustable support arms 32. So as to avoid interference between the adjusting brackets 3. In order to realize the flexible arrangement of each adjusting bracket 3, it can be referred to the embodiment shown in the drawings that the mounting seat 31 has an H-shaped cross section, the adjusting bracket 3 is in the forward mounting state and the backward mounting state, and the side edges of the water tank 1 are respectively matched with two opening areas of the H-shape. This design can guarantee the stability of assembly when nimble collocation.

In overall configuration, and as shown with reference to the figures, a set of adjustable arms 32 is located between a set of mounting blocks 31. The extension direction of the adjustable arm 32 is perpendicular to the extension direction of the mounting seat 31. In order to improve the stability of the conveying device, a reinforcing rod 33 is fixedly connected between the mounting seats 31 of the adjusting brackets 3. The reinforcing rods 33 can be directly fixed on the mounting base 31, and referring to the drawings, the adjustable arms 32 are fixedly arranged on the outer side wall of the mounting base 31, and the reinforcing rods 33 are arranged between the corresponding adjustable arms 32.

In addition to the adjusting effect of the adjusting bracket 3, in the embodiment shown in the drawings, the adjustable supporting arm 32 is provided with mounting holes 321 in an array, and the conveying pipe is hinged to the mounting holes 321. In order to ensure the adjustment effect, the number of the fitting holes 321 is equal to or greater than 3 in principle. In the drawings, the assemblies are provided in 5 and arranged in a straight line.

In order to improve the self-restraint effect of the conveying roller 4 on the material, referring to the embodiment shown in the drawing, the conveying roller 4 is provided with conveying ring grooves 41 in parallel along the self-axial direction, and the opening width of the conveying ring grooves 41 is matched with the outer diameter of the material.

Referring to fig. 5, the material can be stably transported according to the preset transport path 5 under the constraint of each transport roller 4, so as to ensure that the preset processing parameter requirements are met in the production process.

Referring to fig. 6-9, the present application discloses a material seasoning apparatus, comprising:

a blower 601 interconnected with the support surface;

the air pipe 602 extends from the blower 601 away from the supporting surface, and one end of the air pipe 602 away from the blower 601 is provided with an air outlet 603;

the material tray 610 includes a conveying roller 611 for supporting the material and a water collection tank 612 disposed below the conveying roller 611, the water collection tank 612 is fixed to a sidewall of the air duct 602, and the air flow output from the air outlet 603 enters the water collection tank 612 through the conveying roller 611.

Air-blower 601 is used for providing and air-dries the power, in this application, through air-blower 601 air-dries the base of equipment as the material to set up material tray 610 on tuber pipe 602, effectively improved the space overall arrangement effect of equipment when realizing effectively air-drying the material, improved space utilization, realized compact overall arrangement. Wherein, the heavier part of material air-dry equipment is the assembly of air-blower 601, and the overall arrangement can have in holistic bottom and reduce whole equipment focus, and stable the setting.

The water catch bowl 612 can collect moisture on the material, keeping the production environment clean. In the design details of the water collecting tank 612, referring to the embodiment shown in the drawings, the water collecting tank 612 is a hollow shell with a U-shaped cross section, the conveying roller 611 is rotatably installed at the opening of the U-shape, and the conveying roller 611 forms the conveying path 604 suspended in the water collecting tank 612. The water collecting tank 612 can effectively collect water and guide air to flow, so that turbulent flow in the water collecting tank 612 is avoided, air operation efficiency is improved, and air drying efficiency is improved. In the guiding of the air path, referring to the embodiment shown in the drawing, a wind collecting cover 605 is disposed at the wind outlet 603, and the wind collecting cover 605 includes a wind receiving end 606 connected to the wind outlet 603 and a wind blowing end 607 formed by gradually expanding the wind receiving end 606. The wind-collecting cover 605 can be matched with other structures to achieve a better air-drying effect besides guiding the air flow passage. Referring to the embodiment shown in the drawings, the projected area of the blowing end 607 entirely covers the conveying path 604. In this embodiment, the projected area of the blowing end 607 occupies at least 75% of the area between the two conveying rollers 611. Thereby carry the air current to most material on, realize quick air-drying. In order to improve the working effect of the water collecting groove 612, referring to the embodiment shown in the figure, the opening width of the air blowing end 607 is less than or equal to the opening width of the water collecting groove 612. The opening width is understood here to be both the dimension in the direction of travel of the material and the dimension perpendicular to the direction of travel of the material.

It will be appreciated that in order to better collect and guide the water, a drain hose and a drain valve 613 for controlling the on/off of the drain hose are provided below the water collecting tank 612 in the embodiment shown in the drawings.

Besides the blower 601 as the base of the whole equipment, the material air drying equipment in the application also provides an optimization scheme on the spatial layout of each part. Referring to fig. 8, the airflow direction of the air outlet 603 is perpendicular to the airflow direction of the air duct 602, and the airflow direction of the air-drying airflow that passes through the material after being guided by the air-collecting hood 605 is perpendicular to the airflow direction of the air outlet 603. The mutually perpendicular air flows can reduce the space size occupied in the three-dimensional space while ensuring the air flow operation, thereby improving the layout efficiency. In this embodiment, the air drying airflow and the air outlet 603 flow in parallel and opposite directions. Namely, the turning and folding of the airflow are realized, thereby improving the compactness of the layout of the upper part.

Besides the layout concept, the material air drying equipment in the embodiment also realizes the optimized configuration on the whole equipment parameters. Referring to the embodiment shown in the drawings, the size of the water collection tank 612 matches the size of the blower 601 in the direction of travel of the material. Similarly, the overall size of the water collection tank 612 and the air duct 602 in the direction of the air flow of the air outlet 603 matches the size of the blower 601. The overall dimension of the material air-drying equipment can be regularly arranged by the arrangement, so that flexible layout and arrangement in production are facilitated.

In the embodiment shown in fig. 10 to 16, the present application discloses a material separating device, which includes a base 810 and a screening base 830 movably mounted on the base 810, wherein the screening base 830 has:

the screen is arranged on the screening seat 830 and comprises a first screen 871, a second screen 872 and a third screen 873 which are sequentially stacked from top to bottom in the gravity direction, and the screening particle sizes of the first screen 871, the second screen 872 and the third screen 873 are sequentially reduced;

a material dividing port, which comprises a first material dividing port 874 arranged at the downstream of the first screen 871, a second material dividing port 875 arranged at the downstream of the second screen 872 and a third material dividing port 876 arranged at the downstream of the third screen 873;

a plurality of fixing members 880, the fixing members 880 comprising a fixing arm 881 arranged outside the sifting seat 830, the fixing arm 881 having an operating state (shown with reference to the drawings) for fixing the corresponding sifter and the sifting seat 830 and a corresponding releasing state, the fixing arm 881 in the operating state extending from the outside of the sifting seat 830 to the inside of the sifting seat 830 for cooperating with the corresponding sifter.

The technical scheme that this application discloses through the setting of multilayer screen cloth and the optimization of fixed subassembly 880, has overcome existing problems among the prior art, can effectively improve screening efficiency when guaranteeing the screening effect, and maintenance efficiency reduces the cost and the degree of difficulty of maintaining simultaneously, has provided the structural foundation for continuous production.

In the arrangement details of the screen, in the embodiment shown in the drawing, in the material horizontal movement direction, the first screen 871 comprises a first screening section 8711 and a first conveying section 8712 which can be assembled in a sectional manner, the first screening section 8711 is provided with sieve holes with preset sizes, and the bottom surface of the first conveying section 8712 is in a closed arrangement. The first screening section 8711 is used to implement the screening function and the first transport section 8712 is used to increase the transport efficiency of the material, which in total and overall increases the screening efficiency. In detail, the size of the first transportation section 8712 decreases gradually in the width direction of the sieving seats 830. That is, as shown in the drawings, the first transportation section 8712 forms a transportation channel and forms an observation cavity 8713 with the side wall of the sieving seat 830 to facilitate observation of the working condition of the lower layer of the sieve mesh.

The screening effect of each screen needs to be transported in different sections, and referring to the embodiment shown in the drawings, the first material dividing port 874 is communicated with the inner space of the screening base 830 through the first material dividing buffer zone 8741, and the bottom surface of the first material dividing buffer zone 8741 is in the same plane with the second screen 872. The second material distribution hole 875 is communicated with the inner space of the screening base 830 through a second material distribution buffer area 8751, and the bottom surface of the second material distribution buffer area 8751 and the third screen 873 are located on the same plane.

The third material distribution port 876 is communicated with the inner space of the screening base 830 through a third material distribution buffer area 8761, and the bottom surface of the third material distribution buffer area 8761 and the bottom surface of the screening base 830 are located on the same plane. The advantage of above-mentioned setting lies in the inner space of utilization screening seat 830 that can be better abundant, improves the compactness of overall arrangement when guaranteeing the screening effect.

In the overall layout, referring to the embodiment shown in the drawings, the first material dividing opening 874, the second material dividing opening 875 and the third material dividing opening 876 are arranged in a staggered manner in the width direction and the length direction of the sieving base 830. This setting is convenient for the transportation respectively and the storage of material, provides the structure basis for the assembly of follow-up equipment.

To facilitate maintenance of the screen, in the embodiment shown with reference to the drawings, the top surface of the screen is provided with a lifting structure 877.

As will be apparent from the above description, the stable operation and easy maintenance of the screen are supported by the arrangement of the fixing assembly 880, and in detail, with reference to the embodiment shown in the accompanying drawings, the fixing assembly 880 further includes a supporting strip 882 disposed on the inner wall of the screen seat 830, the side edge of the screen is pressed against the supporting strip 882, and the fixing arms 881 and the supporting strip 882 clamp the side edge of the screen in the operating state. The fixing arm 881 is hinged on the side wall of the sieving base 830, an adaptive through hole 883 for the fixing arm 881 to penetrate is formed on the side wall of the sieving base 830, the fixing arm 881 further comprises a fastening rocker arm 884 driving the self-movement, and the fastening rocker arm 884 is used for keeping the fixing arm 881 in a working state.

When the screen needs to be fixedly installed, an operator operates the screen to enter a preset position through the lifting structure 877, and the screen and the screening seat 830 are fixed through the fixing assembly 880, so that screening operation is realized. When the screen needs to be maintained, the screen can be detached through the fixing component 880 arranged outside the screening seat 830, particularly the fastening rocker arm 884, and the screen is simple and stable in structure and convenient and efficient to operate.

On the basis of the above, this application still discloses another feed divider. Referring to fig. 17 to 23, the present application discloses a material dividing device, including:

a base 810 fixedly mounted on the support surface and forming an adaptation plane;

a sliding seat 820 slidably mounted on the base 810;

the screening seat 830, a plurality of screens for screening materials are arranged in the screening seat 830;

the flexible connecting assemblies 840 are arranged between the sliding seat 820 and the screening seat 830 in groups, each group of flexible connecting assemblies 840 at least comprises two connecting members 841, each connecting member 841 comprises a first connecting seat 842 fixed on the sliding seat 820, a second connecting seat 843 fixed on the screening seat 830 and an elastic plate 844 connected between the first connecting seat 842 and the second connecting seat 843, and an included angle exists between a connecting line between the first connecting seat 842 and the second connecting seat 843 and the gravity direction, and the included angle is a vibration process angle A;

and the horizontal vibration source is arranged on the sliding seat 820 and used for driving the sliding seat 820 to perform translational vibration relative to the matching plane.

The horizontal vibration source is used for realizing translational vibration of the sliding seat 820, the sliding seat 820 can avoid transmitting vibration to the base 810 through self sliding, and the inevitable influence of vibration on the base 810 in the prior art is avoided through the sliding arrangement of the base 810 and the sliding seat 820, so that vibration pollution is fundamentally reduced;

meanwhile, the flexible connecting assembly 840 can decompose horizontal vibration into composite vibration of the screening base 830 through self inclination, so that the screening effect is improved on the premise of ensuring low noise and small vibration sense of the surrounding environment, and a good actual effect is achieved.

In practical application, the horizontal vibration source is a vibration motor with an eccentric shaft, the rotation plane of the eccentric shaft is parallel to the adaptation plane, and the vibration motor is symmetrically arranged on both sides of the sliding seat 820 and is driven synchronously. In the implementation manner that the sliding seat 820 and the base 810 slide with each other, the technical solution in the prior art may be adopted, and also in this embodiment, the two are constrained with each other by the planar kinematic pair.

In a specific assembly structure of the connection member 841, referring to the embodiment shown in the drawings, the first connection seat 842 includes a first body 8421 fixedly connected with the sliding seat 820 and a first connection arm 8422 fixedly disposed on the first body 8421, the first body 8421 is horizontally installed, and an angle between a plane on which the first connection arm 8422 is located and a horizontal plane is equal to a vibration process angle.

In fact, in the present embodiment, the elastic plate 844 is linearly extended, and it is the inclined arrangement of the first connecting arm 8422 and the first body 8421 that realizes the vibration process angle. In other embodiments, different vibration process angle settings can be realized by changing the extending path of the elastic plate 844, and flexible adjustment of the vibration process angle can also be realized. From another perspective, the second connecting seat 843 also needs to realize the angle of the vibration process, and it can be understood from the principle that the above arrangement can be adopted, for example, the second connecting seat 843 includes a second body 8431 fixedly connected to the sieving seat 830 and a second connecting arm 8432 fixedly arranged on the second body 8431, the second body 8431 is horizontally arranged, and the angle between the plane of the second connecting arm 8432 and the horizontal plane is equal to the angle between the plane of the first connecting arm 8422 in the first connecting seat 842 and the horizontal plane. In other words, in the present embodiment, the angle between the plane of the second connecting arm 8432 and the horizontal plane is equal to the vibration process angle. Similarly, the second connection seat 843 may also change the extension path of the elastic plate 844 to implement different setting of the vibration process angle, and may also implement flexible adjustment of the vibration process angle.

It will be readily apparent that the actual vibration effect is related to the range of vibration process angles a. In principle, the vibration process angle ranges from 15 degrees to 75 degrees. Referring to the embodiment shown in the drawings, the vibration process angle ranges from 35 degrees to 55 degrees.

In the connection manner of the connection seats and the elastic plate 844, referring to the embodiment shown in the drawings, the elastic plate 844 is provided with at least two and clamps the first connection seat 842 and the second connection seat 843 from both sides, respectively. In actual assembly, the stressed connection can be realized through clamping plates on two sides and through bolts.

In the detailed arrangement of the elastic plate 844, referring to the embodiment shown in fig. 21, each set of the flexible connecting assemblies 840 includes three connecting members 841, and the three connecting members 841 are respectively:

the first assembly 8411, the elastic coefficients of the two elastic plates 844 are set to be the same;

a second assembly 8412, in which two elastic plates 844 are arranged in different thicknesses;

in the third component 8413, the elastic coefficients of the two elastic plates 844 are set to be the same, and one of the elastic plates 844 is provided with the reinforcing member 845.

That is, in the embodiment shown in the drawings, the two elastic plates 844 can be arranged as follows:

the elastic coefficients of the two elastic plates 844 are the same or different; and/or

The two elastic plates 844 have the same or different thickness coefficients.

Similarly, the connection member 841 further includes a reinforcing member 845 disposed to abut against the elastic plate 844, the elastic coefficient of the reinforcing member 845 is greater than that of the elastic plate 844, and the reinforcing member 845 is connected to the corresponding first connection seat 842 and the second connection seat 843. Further, the elastic plate 844 and the reinforcing element 845 are separated and made of different materials, wherein the reinforcing element 845 is made of a metal material.

In various embodiments, the above-described arrangement may be flexibly arranged, and in the embodiment shown in the drawings, the first module 8411, the second module 8412, and the third module 8413 are arranged in sequence.

In the embodiment shown in the drawings, each group of flexible connecting assemblies 840 includes three connecting members 841, the flexibly connected screening device includes four groups of flexible connecting assemblies 840 respectively disposed at four corners of the screening base 830, the third assemblies 8413 between the two groups of flexible connecting assemblies 840 on the same side are disposed away from each other, and the first assemblies 8411 between the two groups of flexible connecting assemblies 840 on the same side are disposed close to each other.

Referring to fig. 24 to 29, the present application discloses a vibrating screen with an inlet screening cloth device 860, and it can be understood that the present application also discloses a vibrating screen with an inlet screening cloth device 860, which comprises a base 810 and a screening base 830 movably mounted on the base 810, a screen mesh for screening materials is mounted in the screening base 830, an inlet hopper 850 for injecting materials into the screen mesh is arranged above the screening base 830, the inlet screening cloth device 860 is arranged at an outlet of the inlet hopper 850, the inlet screening cloth device 860 comprises a connecting plate 861 fixed with the inlet hopper 850 and a distribution structure 862 arranged below the connecting plate 861, the distribution structure 862 comprises a plurality of first barrier strips 8621 extending towards the inside of the inlet hopper 850 and second barrier strips 8622 extending away from the inlet hopper 850;

a plurality of first bars 8621 and second bars 8622 are adjacently arranged at intervals in a first direction (refer to the up-down direction in fig. 26), and the material is blocked by the distribution structure 862 to enter the sieving seat 830 through the material passing gap 8623 between the first bars 8621 and the second bars 8622.

The technical scheme disclosed in this application has realized the material distribution when the pan feeding through the setting of the income screening cloth device 860 that has distribution structure 862, has avoided the material to concentrate and has piled up, provides the structural basis for continuous stable production.

In the arrangement details of the distribution structure 862, referring to the embodiment shown in the drawings, the first bars 8621 and the connecting plate 861 are of a unitary structure and are formed by bending the lower edge of the connecting plate 861. Similarly, the second stop 8622 and the connecting plate 861 are integrally formed and are formed by bending the lower edge of the connecting plate 861. This setting can effectively reduce distribution device manufacturing cost, also can bring some structural advantages. For example, in the present embodiment, the extension tendencies of the first barrier 8621 and the second barrier 8622 are symmetrical to each other with the connecting plate 861 as the symmetry axis. This setting can provide more regular punishment in advance clearance 8623 to improve the smooth and easy degree that the material passed through.

In overall form, referring to the embodiment shown in fig. 27 and 29, the ratio between the width W1 of the first barrier 8621 in the first direction and the length L1 of the first barrier 8621 in the second direction is in the range of 0.2 to 0.6; a ratio between the width W2 of the second barrier rib 8622 in the first direction and the length L2 of the second barrier rib 8622 in the second direction is in a range of 0.2 to 0.6.

Referring to the embodiment shown in the drawings, the ratio between the height H1 of the distribution structures 862 and the height H2 of the connection plates 861 in the second direction is in the range of 0.1 to 0.4.

In the assembled relationship of the inlet screen cloth 860 and the inlet hopper 850, and with reference to the embodiment shown in fig. 24, the attachment plate 861 closes the outlet of the inlet hopper 850, and the distribution 862 aligns with the lower edge of the outlet of the inlet hopper 850 and the outlet of the inlet hopper 850. This setting can realize that the material is piled up to a certain extent to conveniently realize the distribution of material in the first direction.

Of course, the specific distribution effect can be adjusted by adjusting the position in the second direction (up and down in reference to fig. 25) on the screening arrangement 860. Referring to the embodiment shown in the drawings, the connection plate 861 is provided with a waist hole 8611 extending in a second direction perpendicular to the first direction, and the connection plate 861 is connected to the hopper 850 by bolts passing through the waist hole 8611.

In order to facilitate adjustment during production, the inlet screen arrangement 860, in the embodiment shown in the figures, further comprises a lifting portion 863 provided on the attachment plate 861, the lifting portion 863 being adapted to exert a force on the attachment plate 861 in the second direction. For the convenience of production, the lifting portion 863 is formed by folding the upper edge of the connecting plate 861, and the lifting portion 863 is arranged perpendicular to the connecting plate 861.

Through the above description, it is not difficult to discover that go into screening cloth device 860 in this application can be through plate punching press production manufacturing, and overall structure is simple, be convenient for production, distribution are effectual, have high spreading value.

Referring to fig. 30 to 33, the present application discloses a homogenizing device, comprising:

the storage barrel 701 is used for accommodating materials, and the storage barrel 701 comprises a discharge hole 702 positioned at the bottom;

the feeding pipeline 710 comprises an air supply outlet 711, a feeding inlet 712 and a material homogenizing outlet 713 which are communicated with each other, the feeding inlet 712 is used for receiving materials, and the material homogenizing outlet 713 is communicated with the top of the storage barrel 701;

and the feeding fan 720 is communicated with the air supply outlet 711 and inputs airflow into the feeding pipeline 710 to drive the materials to move in the feeding pipeline 710.

The technical scheme that this application discloses has avoided the damaged problem of material through wind-force pay-off, especially at the homocline in-process, through the cooperation of gravity and pay-off process, can realize at the in-process full-automatic completion homocline process of storing, can have effectively to improve production efficiency.

In a specific pipeline arrangement, referring to the embodiment shown in fig. 32, the feeding pipeline 710 has a three-way structure, and the feeding inlet 712 is vertically arranged and bypasses the passage between the air blowing outlet 711 and the material homogenizing outlet 713. Further, the feed inlet 712 is funnel-shaped and has a smooth transition inside. To avoid wind pressure build-up, resulting in airflow exiting the feed line 710 from the feed inlet 712, the feed inlet 712 is located close to the supply air outlet 711. Corresponding unidirectional structures may also be provided, which in this embodiment is overcome by the shape of the feed inlet 712.

In the overall structure of the storage tank 701, referring to the embodiment shown in the drawings, the upper half part of the discharge tank is cylindrical, and the lower half part is a cone and gradually converges to form a discharge port 702. The lower half part of the storage vat 701 is further provided with a base 703, the feeding pipeline 710 and the feeding fan 720 are installed on the base 703, and the feeding fan 720 and the feeding pipeline 710 are integrally located in the projection area of the storage vat 701. This arrangement can provide a more neat appearance. It will be appreciated, however, that the feed line 710 extends along the side walls of the silo 701 to the top of the silo 701 and forms a leveling outlet 713, with the feed line 710 transitioning smoothly throughout. This arrangement can reduce the resistance to feeding.

In operation, and with reference to the embodiment of fig. 31-33, the storage vessel 701 is provided with a plurality of discharge ports 702, including at least one aligned with the feed inlet 712.

The material outlet 702 enters the feeding inlet 712 after leaving the storage barrel 701 and falls into the feeding pipeline 710 under the action of self gravity;

under the action of the wind power of the feeding fan 720, the materials reach the homogenizing outlet 713, namely the upper part of the storage barrel 701, through the feeding pipeline 710;

the material will recall the movement of the outlet 702 again under the action of gravity, thus realizing circulation.

Because the material is arranged in the moving and lower half part of the cone, the material can spontaneously form a material homogenizing process in the moving process, and the risk of material crushing is avoided.

As can be understood from the above description, during the feeding or material homogenizing process, the feeding fan 720 generates positive pressure in the storage vat 701, so as to avoid the positive pressure affecting the transportation of the material, in the embodiment shown in the drawings, the top of the storage vat 701 is further provided with a pressure relief air pipe 704, and the pressure relief air pipe 704 is wrapped with a filter bag. The positive pressure can be released through the pressure relief air pipe 704, and the filter bag can prevent the material from being brought away from the storage vat 701.

In addition to the above mentioned material homogenizing function, the technical solution disclosed in the present application can also be used for feeding, and in the embodiment shown in the accompanying drawings, a control valve 714 for switching the passage and a feeding outlet 715 communicating with downstream equipment are provided on the feeding pipeline 710. Of course, in this embodiment, the material may be transported in other manners, such as through a plurality of discharge ports 702 under the storage vat 701.

The application discloses plastic granules's production system, through the plastics extrusion device disclosed in the above, material cooling device, the material air-dries equipment, the segmentation device, feed divider and mixing device, has realized the full flow optimization in the plastic granules production process, has effectively improved production efficiency.

All possible combinations of the technical features of the embodiments described above may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

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

Claims

1. A system for producing plastic pellets, comprising:

the plastic extrusion device is used for providing strip-shaped materials;

the material cooling device is used for cooling the strip-shaped materials and comprises a water tank for containing cooling media and an adjusting and conveying device arranged on the water tank, the adjusting and conveying device comprises a plurality of adjusting supports and conveying rollers, each adjusting support comprises a group of mounting seats matched with two side edges of the water tank and adjustable supporting arms respectively arranged on the corresponding mounting seats, and two ends of each conveying roller are respectively hinged to the corresponding adjustable supporting arms; the adjusting bracket is provided with a forward mounting state integrally positioned above the water tank and a reverse mounting state integrally positioned in the water tank, and the conveying rollers of the adjusting brackets respectively bear and/or press materials to form a conveying path;

the material air drying equipment is used for air drying the cooled strip-shaped material, and comprises an air blower, an air pipe and a material tray, wherein the air blower is connected with a supporting surface, the air pipe extends from the air blower to a position away from the supporting surface, the material tray comprises a conveying roller and a water collecting tank, the conveying roller is used for supporting the material, the water collecting tank is arranged below the conveying roller, the water collecting tank is fixed on the side wall of the air pipe, an air outlet is formed in one end, away from the air blower, of the air pipe, and air flow output by the air outlet enters the water collecting tank after passing through the conveying roller;

the material distribution device is used for screening the cut materials according to particle sizes and comprises a base and a screening seat movably mounted on the base, wherein a screen, a material distribution port and a plurality of fixing assemblies are mounted on the screening seat, the screen is arranged on the screening seat and comprises a first screen, a second screen and a third screen which are sequentially stacked from top to bottom in the gravity direction, and the screening particle sizes of the first screen, the second screen and the third screen are sequentially reduced; the material distribution port comprises a first material distribution port arranged at the downstream of the first screen, a second material distribution port arranged at the downstream of the second screen and a third material distribution port arranged at the downstream of the third screen; the fixing assembly comprises a fixing arm arranged outside the screening seat, the fixing arm is provided with a working state and a corresponding release state for fixing the corresponding screen and the screening seat, and the fixing arm in the working state extends from the outside of the screening seat to the inside of the screening seat to be matched with the corresponding screen;

the homogenizing device is used for conveying materials after screening, and comprises a storage barrel, a feeding pipeline and a feeding fan, wherein the storage barrel is used for accommodating the materials, the storage barrel comprises a discharge port located at the bottom, the feeding pipeline comprises an air supply outlet, a feeding inlet and a homogenizing outlet which are mutually communicated, the feeding inlet is used for accepting the materials, the homogenizing outlet is communicated with the top of the storage barrel, and the feeding fan is communicated with the air supply outlet and used for inputting airflow in the feeding pipeline to order about the materials to move in the feeding pipeline.

2. A plastic pellet production system as claimed in claim 1, wherein a feed hopper for injecting material into the screen mesh is provided above the sieving base, a sieving device is provided at an outlet of the feed hopper, the sieving device comprises a connecting plate fixed to the feed hopper and a distribution structure provided below the connecting plate, the distribution structure comprises a plurality of first barrier strips extending towards the inside of the feed hopper and second barrier strips extending away from the feed hopper;

3. The system for producing plastic granules according to claim 2, wherein the first barrier strip and the connecting plate are of an integral structure and are formed by bending the lower edge of the connecting plate; the second barrier strip and the connecting plate are of an integral structure and are formed by bending the lower edge of the connecting plate; the extending trends of the first barrier strips and the second barrier strips are mutually symmetrical by taking the connecting plate as a symmetry axis.

4. The plastic pellet production system of claim 1 wherein the feed divider further comprises:

the sliding seat is slidably mounted on the base, and the base forms an adaptive plane;

the flexible connecting assemblies are arranged between the sliding seat and the screening seat in groups, each group of flexible connecting assemblies at least comprises two connecting members, each connecting member comprises a first connecting seat fixed on the sliding seat, a second connecting seat fixed on the screening seat and an elastic plate connected between the first connecting seat and the second connecting seat, and an included angle exists between a connecting line between the first connecting seat and the second connecting seat and the gravity direction, and the included angle is a vibration process angle;

5. A system for producing plastic granules according to claim 4, wherein the first connecting seat comprises a first body fixedly connected with the sliding seat and a first connecting arm fixedly arranged on the first body, the first body is horizontally installed, and the angle between the plane of the first connecting arm and the horizontal plane is equal to the vibration process angle;

the second connecting seat comprises a second body fixedly connected with the screening seat and a second connecting arm fixedly arranged on the second body, the second body is horizontally arranged, and the angle between the plane of the second connecting arm and the horizontal plane is equal to the vibration process angle;

the value range of the vibration process angle is 15 degrees to 75 degrees.

6. The system for producing plastic granules of claim 1, wherein the mounting seat has an H-shaped cross-section, and the adjusting bracket is mounted in a forward direction and a reverse direction, and the side edges of the water tank are respectively engaged with the two open areas of the H-shape.

7. A system for the production of plastic granules as claimed in claim 6 wherein a set of adjustable arms is located between a set of mounting seats.

8. The system for producing plastic granules of claim 1, wherein the fixing assembly further comprises a supporting strip arranged on the inner wall of the screening seat, the lateral edge of the screen is pressed against the supporting strip, and the fixing arm and the supporting strip in the working state clamp the lateral edge of the screen;

the fixed arm is hinged to the side wall of the screening seat, the side wall of the screening seat is provided with an adaptive through hole for the fixed arm to penetrate through, the fixed arm further comprises a fastening rocker arm driving the fixed arm to move, and the fastening rocker arm is used for keeping the fixed arm in the working state.

9. The system for producing plastic granules according to claim 1, wherein the feeding pipeline has a three-way structure, and the feeding inlet is vertically arranged and bypasses a passage between the air supply outlet and the homogenizing outlet; the feeding inlet is funnel-shaped and has smooth transition inside.

10. The system for producing plastic granules according to claim 9, wherein a pressure relief air pipe is further provided at the top of the storage vat, and the pressure relief air pipe is wrapped with a filter bag.