CN109531854B

CN109531854B - CPP blown film raw materials granule mixes proportioning device

Info

Publication number: CN109531854B
Application number: CN201811379159.3A
Authority: CN
Inventors: 曹玉; 毛潞
Original assignee: Chongqing Ruiting Plastic Co Ltd
Current assignee: Chongqing Ruiting Plastic Co Ltd
Priority date: 2018-11-19
Filing date: 2018-11-19
Publication date: 2020-10-02
Anticipated expiration: 2038-11-19
Also published as: CN109531854A

Abstract

The invention relates to the field of plastic film production, in particular to a CPP blown film raw material particle mixing and proportioning device which comprises a mixing chamber and a stirring device, wherein a material storage plate is fixedly arranged in the mixing chamber, a spiral groove with an upward opening is formed in the material storage plate, a spiral plug is connected in the spiral groove in a sliding manner, a liquid storage cavity is formed in the spiral plug and the spiral groove, material spraying holes are uniformly distributed at the bottom of the liquid storage cavity, a plurality of through holes are uniformly distributed at the periphery of the spiral groove of the material storage plate, the stirring device is positioned below the material storage plate, and the stirring device is provided with stirring. The invention is used for solving the problem of uneven mixing of CPP blown film raw materials in the prior art.

Description

CPP blown film raw materials granule mixes proportioning device

Technical Field

The invention relates to the field of plastic film production, in particular to a CPP blown film raw material particle mixing and proportioning device.

Background

The CPP blown film needs to mix and proportion raw materials in the production process, the raw material formula of the CPP blown film contains a large amount of PP raw material particles, a small amount of liquid electrostatic agent and powdery slipping agent, and the raw materials are poured into a mixing stirrer together and then stirred and mixed in the prior art, however, the mixing stirring mode has the following problems:

firstly, because the liquid electrostatic agent and the powdery slipping agent are both small in amount, the electrostatic agent and the slipping agent are easily mixed with part of PP raw materials by adopting a mode of pouring all the raw materials into a stirrer together and then stirring, and the raw materials are easily mixed unevenly; meanwhile, the non-uniform raw materials are mixed, so that the qualification rate of the blown film is influenced on one hand, and the quality of the CPP film finished product is also influenced on the other hand.

Disclosure of Invention

The invention provides a CPP blown film raw material particle mixing and proportioning device, which aims to solve the problem of uneven mixing of CPP blown film raw materials in the prior art.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

CPP blown film raw materials granule mixes proportioning device, including mixing chamber and agitating unit, the indoor fixed storage plate that is equipped with of mixing chamber, be equipped with opening helicla flute up in the storage plate, sliding connection has the spiral stopper in the helicla flute, form the stock solution chamber in spiral stopper and the helicla flute, stock solution chamber bottom equipartition has the hole of spouting, the helicla flute periphery equipartition of storage plate has a plurality of through-holes, agitating unit is located the storage plate below, agitating unit has stirring vane.

The beneficial effects of the technical scheme are as follows:

first, the spiral plug in the helicla flute is pushed and is stretched storage cavity constantly under the external force is used, and the powder mixed liquid (the mixed liquid of liquid electrostatic agent and powdered smooth agent is called the powder mixed liquid) in the storage cavity spouts to the compounding room under the extrusion, and PP raw material granule falls to the compounding room through evenly distributed's on the storage plate through-hole, PP raw material granule evenly contacts with spun powder mixed liquid in the compounding room, is favorable to PP raw materials and powder mixed liquid's homogeneous mixing.

Secondly, the stirring blade that is equipped with in the mixing chamber stirs the mixture that has contacted in the air on the one hand, and on the other hand, the wind-force that the stirring blade stirring formed has further increased the time of powder mixed liquid and PP raw material granule in the air, is favorable to PP raw material granule and the abundant contact of powder mixed liquid, further is favorable to the homogeneity of mixing.

Thirdly, compared with the mode that the raw materials are poured into the stirrer together and then stirred in the prior art, the method adopts the mode that the raw material particles are poured into the stirrer while the powder mixed liquid of the slipping agent and the electrostatic agent is poured into the stirrer, so that the raw materials of the CPP film are divided into a plurality of small parts, and each small part is mixed and stirred, and for a stirring device, the stirring load in the same time is reduced, thereby being beneficial to prolonging the service life of the stirring device; for the raw material mixing of preparing the CPP film, the mixing is more sufficient, and the quality of the subsequent film forming can be ensured.

Further, the stirring device comprises a circumferential stirring unit and an axial stirring unit, the circumferential stirring unit is positioned above the axial stirring unit, the circumferential stirring unit comprises a rotating vertical shaft and stirring blades, and the stirring blades are fixedly connected to the vertical shaft; the axial stirring unit comprises a rotating disk and a plurality of stirring columns which are vertically arranged, and the stirring columns are fixedly connected to the rotating disk; the vertical shaft penetrates out of the bottom of the mixing chamber, and the rotating shaft of the rotating disc penetrates out of the side wall of the mixing chamber.

Has the advantages that: the circumferential stirring unit rotates around the vertical shaft and drives the stirring blades to circumferentially stir the mixture passing through the storage plate; the axial stirring unit is driven by the rotation of the rotating disc, and the stirring column is used for stirring the falling mixture up and down; the whole stirring process realizes the primary mixing of the raw materials which are automatically contacted in the air, then the mixture falls onto the circumferential stirring unit for secondary mixing and stirring, and finally the axial stirring unit carries out up-and-down stirring on the mixture to realize the tertiary mixing and stirring; the raw materials for preparing the CPP film are fully mixed in all directions of the space through multi-stage stirring.

The transmission device comprises a motor, a transmission shaft and a driven shaft, a cylindrical gear and a bevel gear are arranged on the transmission shaft, the transmission shaft is perpendicular to the driven shaft, an output shaft of the motor is in meshed transmission connection with the transmission shaft through the cylindrical gear, the transmission shaft is in meshed transmission connection with the driven shaft through the bevel gear, the vertical shaft is driven by the output shaft of the motor, and a rotating shaft of the rotating disc is in belt transmission connection with the driven shaft.

Has the advantages that: the circumferential stirring unit and the axial stirring unit are linked through the transmission device, so that the utilization rate of the output power of the motor is improved, and the energy is saved.

Further, compounding room lower part sliding connection has the piston board, the piston board is located axial stirring unit below, be equipped with the elastic component between piston board and the compounding room bottom, the compounding room is stretched out to the tip of piston board, the partial fixedly connected with connecting rod that the piston board stretches out, the one end and the spiral stopper fixed connection of piston board are kept away from to the connecting rod.

Has the advantages that: the elastic piece is connected below the piston plate, so that after the mixture falls onto the piston plate, the elastic piece drives the piston plate to vibrate up and down, the piston plate drives the screw plug to move up and down through the connecting rod, the up and down movement of the screw plug drives the pressure intensity change in the liquid storage cavity, the powder mixed liquid in the liquid storage cavity is continuously stirred, and the condition that the powder mixed liquid is uneven is avoided; in addition, the piston plate is being driven by the elastic component and is reciprocating also makes the mixture constantly reciprocate, and the mixture that reciprocates for the stirring effect of stirring post is better.

Furthermore, a partition plate is arranged between the circumferential stirring unit and the axial stirring unit, and a plurality of blanking holes are formed in the partition plate.

Has the advantages that: the existence of baffle makes the time extension that mixes the raw materials by circumference stirring unit stirring, has increased the churning time relatively on the one hand, and on the other hand has alleviateed the stirring load of axial stirring unit, is favorable to prolonging agitating unit's life.

Further, the material spraying hole is in an inverted cone shape.

Has the advantages that: the inverted cone-shaped material spraying hole enables the volume of liquid drops to be smaller when the powder mixed liquid is sprayed out, and the diffusion area of the liquid drops is wider.

Further, a pressure release valve and a discharge hole are arranged in the mixing chamber.

Has the advantages that: the pressure relief valve is favorable for balancing the pressure in the mixing chamber, and the discharge port can timely treat the uniformly mixed mixture to reduce the stirring load of the stirring device and the pressure-bearing load of the piston plate.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a top view of the reservoir plate of FIG. 1;

fig. 3 is an isometric view of the screw plug of fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a mixing chamber 1, a circumferential stirring unit 2, an axial stirring unit 3, a material storage plate 4, a partition plate 5, a piston plate 6, a spring 7, a transmission device 8, a spiral groove 9, a spiral plug 10, a liquid storage cavity 11, a material spraying hole 12, a through hole 13, a connecting plate 14, a convex column 15, a vertical shaft 16, a stirring blade 17, a stirring column 18, a rotating disc 19, a motor 20, a transmission shaft 21, a driven shaft 22, a cylindrical gear 23, a bevel gear 24, a belt 25, a connecting rod 26, a raw material cavity 27, a primary mixing cavity 28 and a secondary mixing cavity 29.

The embodiment is substantially as shown in fig. 1 to 3:

the CPP blown film raw material particle mixing and proportioning device comprises a mixing chamber 1 and a stirring device, wherein the stirring device comprises a circumferential stirring unit 2 and an axial stirring unit 3, and a material storage plate 4, the circumferential stirring unit 2, a partition plate 5, the axial stirring unit 3 and a piston plate 6 are sequentially arranged in the mixing chamber 1 from top to bottom; a spring 7 is connected between the piston plate 6 and the bottom of the mixing chamber 1, and a transmission device 8 is arranged below the mixing chamber 1.

A spiral groove 9 with an upward opening is formed in the material storage plate 4, a spiral plug 10 is connected in the spiral groove 9 in a sliding mode, a liquid storage cavity 11 is formed in the spiral plug 10 and the spiral groove 9, inverted-cone-shaped material spraying holes 12 are evenly distributed at the bottom of the liquid storage cavity 11, and a plurality of through holes 13 are evenly distributed in the periphery of the spiral groove 9 of the material storage plate 4; the top of the screw plug 10 is provided with a convex column 15, and the convex column 15 upwards penetrates through the top of the mixing chamber 1 and is fixedly connected with a connecting plate 14.

The baffle 5 is provided with a plurality of blanking holes, and the baffle 5, the storage plate 4 and the piston plate 6 divide the mixing chamber 1 into a raw material chamber 27, a primary mixing chamber 28, a secondary mixing chamber 29 and a chamber with a spring 7 from top to bottom in sequence.

The circumferential stirring unit 2 comprises a rotating vertical shaft 16 and stirring blades 17, and the stirring blades 17 are fixedly connected to the vertical shaft 16; the axial stirring unit 3 comprises a rotating disc 19 and six vertically arranged stirring columns 18, the stirring columns 18 are fixedly connected to the rotating disc 19, the stirring columns 18 are located on different radiuses of the rotating disc 19, and a rotating shaft of the rotating disc 19 penetrates through the side wall of the mixing chamber 1.

The transmission device 8 comprises a motor 20, a transmission shaft 21 and a driven shaft 22, a cylindrical gear 23 and a bevel gear 24 are arranged on the transmission shaft 21, the transmission shaft 21 is perpendicular to the driven shaft 22, an output shaft of the motor is in meshing transmission connection with the transmission shaft 21 through the cylindrical gear 23, the transmission shaft 21 is in meshing transmission connection with the driven shaft 22 through the bevel gear 24, the vertical shaft 16 is in flat key connection with an output shaft of the motor 20, and a rotating shaft of the rotating disc 19 is in transmission connection with the driven shaft 22 through a belt 25.

The piston plate 6 is connected on the side wall of the mixing chamber 1 in a sliding way, the part of the piston plate 6 extending out of the mixing chamber 1 is fixedly connected with a connecting rod 26, and the upper end of the connecting rod 26 is fixedly connected with the connecting plate 14.

A pressure release valve and a discharge hole (not shown in the figure) are arranged in the mixing chamber 1.

The specific implementation process is as follows:

in the initial state, a worker fully mixes the liquid electrostatic agent and the powdery slipping agent to form a powder mixed solution, then the powder mixed solution is loaded into the spiral groove 9 of the storage plate 4, and PP raw material particles are poured into the raw material cavity 27 above the storage plate 4.

The motor 20 is started, the output shaft of the motor 20 drives the vertical shaft 16 to rotate, and the stirring blades 17 work; meanwhile, under the transmission action of the transmission device 8, the transmission shaft 21 rotates under the meshing of the cylindrical gear 23, the bevel gear 24 on the transmission shaft 21 meshes and drives the driven shaft 22 to rotate, the driven shaft 22 is connected with the rotating shaft of the rotating disc 19 through the belt 25, the rotating disc 19 further rotates, and the stirring column 18 on the rotating disc 19 rotates along with the rotating disc 19.

While the circumferential stirring unit 2 and the axial stirring unit 3 are stirring, PP raw material particles fall into the primary mixing cavity 28 from the through hole 13 of the material storage plate 4, a worker applies external force to press the connecting plate 14 back and forth, so that the spiral plug 10 and the spiral groove 9 form an inflator, the powder mixed liquid is sprayed out from the material spraying hole 12 of the liquid storage cavity 11 under the action of the external force, the PP raw material particles and most of the powder mixed liquid are contacted in the air, and primary mixing of different raw materials in the air is realized; the powder mixed liquid which is not contacted with the powder mixed liquid is contacted with PP raw material particles when falling onto the clapboard 5 and is stirred by the rotating stirring blade 17, thereby achieving secondary mixing and stirring; the mixing blades 17 stir the mixture in the first-stage mixing cavity 28 in the circumferential direction of the mixing chamber 1, meanwhile, part of the mixture falls into the second-stage mixing cavity 29 through the blanking holes, and the mixing columns 18 on the axial mixing unit 3 in the second-stage mixing cavity 29 stir the mixture up and down, so that three-time mixing is realized.

During primary mixing, the PP raw material particles are mixed with the continuously sprayed powder mixed solution in the continuous falling process, namely, the raw materials to be mixed are divided into a plurality of small parts, and each small part is independently mixed, so that the PP raw material particles can be fully and uniformly contacted with the electrostatic agent and the slipping agent; the circumferential stirring of the secondary mixing stirring and the upper and lower stirring of the tertiary mixing stirring realize the all-round stirring of the raw materials, so that the raw materials are mixed more uniformly.

In addition, the spring 7 connected below the piston plate 6 enables the mixture to fall onto the piston plate 6, the spring 7 drives the piston plate 6 to vibrate up and down, the piston plate 6 drives the connecting plate 14 to move up and down through the connecting rod 26, the connecting plate 14 moving up and down drives the spiral plug 10 to move up and down, the pressure intensity in the liquid storage cavity 11 is changed by the up and down movement of the spiral plug 10, the powder mixed liquid in the liquid storage cavity 11 is further stirred continuously, and the condition that the static agent and the slipping agent in the powder mixed liquid are mixed unevenly is avoided; the piston plate 6 is driven by the spring 7 to move up and down, so that the mixture in the secondary mixing cavity 29 also moves up and down, and the mixture moving up and down enables the mixing effect of the mixing column 18 to be better.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that variations and modifications can be made by those skilled in the art without departing from the structure of the present invention. These should also be construed as the scope of the present invention, and they should not be construed as affecting the effectiveness of the practice of the present invention or the applicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

The CPP blown film raw material particle mixing and proportioning device comprises a mixing chamber and a stirring device, and is characterized in that: the indoor fixed storage plate that is equipped with of compounding, be equipped with opening helicla flute up in the storage plate, sliding connection has the spiral stopper in the helicla flute, form the stock solution chamber in spiral stopper and the helicla flute, stock solution chamber bottom equipartition has the hole of spouting, the helicla flute periphery equipartition of storage plate has a plurality of through-holes, agitating unit is located the storage plate below, agitating unit has stirring vane.
2. The CPP blown film raw material particle mixing and proportioning device of claim 1, characterized in that: the stirring device comprises a circumferential stirring unit and an axial stirring unit, wherein the circumferential stirring unit is positioned above the axial stirring unit and comprises a rotating vertical shaft and stirring blades, and the stirring blades are fixedly connected to the vertical shaft; the axial stirring unit comprises a rotating disk and a plurality of stirring columns which are vertically arranged, and the stirring columns are fixedly connected to the rotating disk; the vertical shaft penetrates out of the bottom of the mixing chamber, and the rotating shaft of the rotating disc penetrates out of the side wall of the mixing chamber.
3. The CPP blown film raw material particle mixing and proportioning device of claim 2, characterized in that: the transmission device comprises a motor, a transmission shaft and a driven shaft, a cylindrical gear and a bevel gear are arranged on the transmission shaft, the transmission shaft is perpendicular to the driven shaft, an output shaft of the motor is connected with the transmission shaft through the meshing transmission of the cylindrical gear, the transmission shaft is connected with the driven shaft through the meshing transmission of the bevel gear, the vertical shaft is driven by the output shaft of the motor, and a rotating shaft of the rotating disc is in transmission connection with the driven shaft.
4. The CPP blown film raw material particle mixing and proportioning device of claim 3, characterized in that: the material mixing chamber is characterized in that a piston plate is connected to the lower portion of the material mixing chamber in a sliding mode, the piston plate is located below the axial stirring unit, an elastic piece is arranged between the piston plate and the bottom of the material mixing chamber, the end portion of the piston plate extends out of the material mixing chamber, a connecting rod is fixedly connected to the portion, extending out of the piston plate, of the connecting rod, and one end, far away from the piston plate, of the connecting rod is fixedly connected with a spiral plug.
5. The CPP blown film raw material particle mixing and proportioning device of claim 4, characterized in that: and a partition plate is arranged between the circumferential stirring unit and the axial stirring unit, and a plurality of blanking holes are formed in the partition plate.
6. The CPP blown film raw material particle mixing and proportioning device of claim 5, characterized in that: the material spraying hole is in an inverted cone shape.
7. The CPP blown film raw material particle mixing and proportioning device of claim 6, characterized in that: and a pressure release valve and a discharge hole are arranged in the mixing chamber.