CN215472300U

CN215472300U - Horizontal mixer of polyethylene raw materials processing

Info

Publication number: CN215472300U
Application number: CN202121493304.8U
Authority: CN
Inventors: 徐新永
Original assignee: Suzhou Yonglong Packaging Material Co ltd
Current assignee: Suzhou Yonglong Packaging Material Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-01-11
Anticipated expiration: 2031-06-30

Abstract

The utility model relates to the field of production of polyethylene related products, in particular to a horizontal mixer for processing polyethylene raw materials, which comprises a mixer body, a main shaft, a mixing shaft, a motor, a round shaft, a transmission crawler belt, a base plate, a heat-insulating layer, a feeding port, a sealing cover, a support rod and a mechanical rotating shaft, wherein the main shaft is arranged on the mixer body; the machine body is fixed on the base plate through the straight rod; a stirring shaft is arranged at the horizontal center of the machine body; a main shaft is arranged in the stirring shaft; a mechanical rotating shaft is arranged on the left side of the main shaft; the motor is connected with the main shaft through the round shaft and the transmission crawler. The utility model replaces the vertical type with the horizontal type, and solves the problem that the vertical type cannot fully stir and liquefy because the plasticized raw material solid is deposited at the bottom of the machine body; the metal melting-assisting ball is put in, so that the plasticized raw materials are fully rubbed during stirring and melting, fine particles of the plasticized raw materials are reduced, and the melting effect is optimized.

Description

Horizontal mixer of polyethylene raw materials processing

Technical Field

The utility model relates to the field of production of polyethylene related products, in particular to a horizontal mixer for processing polyethylene raw materials.

Background

The plastic stirrer is used for fully heating and stirring the plasticizing raw material, the new and old plastic material and the color master before injection molding and blow molding until the plasticizing raw material, the new and old plastic material and the color master are molten so as to obtain the high-quality fully liquefied injection molding and blow molding raw material.

Most of the existing plastic mixers are vertical, which has the advantage of convenient production and feeding, the main structure usually comprises a metal tank body with a half-sealed top, a fork-shaped stirring rod arranged at the center of the metal tank body and an energy supply motor, and the top sealing design of other sealed filling ports is not needed because the filling port is positioned above the tank body; the method has the disadvantages that new and old plastic materials put into the metal tank body can be partially melted after being heated for a period of time, the liquefied part is deposited below the tank body due to high density, and the part which is not liquefied floats above the liquefied part and can not be sufficiently liquefied, so that the granular feeling of injection molding raw materials is strong, and the product quality is influenced.

The Chinese utility model patent application No. CN201821260674.5 discloses a high-efficiency horizontal plastic stirrer, which adopts a horizontal structure, a shell is arranged above a base and is hinged above a support rod, a discharge pipe is arranged on one side of the bottom of the shell and is communicated with the shell through a valve, one end of a cylinder is connected with the bottom of one side of the shell, and the other end is connected with the upper end of the base; the stirring ring is arranged on the outer diameter of the rotating shaft, two ends of the material stirring plate are hinged with two ends of the stirring ring, and the middle part of the material stirring plate is connected with the inner part of the stirring ring through a spring, so that the production efficiency, the stirring uniformity and the material discharging efficiency are effectively improved; the method has the defects that although the problem that the plasticizing raw material cannot be fully melted due to solid-liquid separation in a semi-liquefied state is solved, a better melting assisting mode is not provided; and the long-term opening of the injection port can also cause heat dissipation, and harmful substances generated by the plastic at high temperature are discharged at the same time, so that the health of operators is not facilitated.

SUMMERY OF THE UTILITY MODEL

Utility model purpose:

in order to overcome the defects, the utility model aims to provide the horizontal mixer for processing the polyethylene raw material, which utilizes the stirring of the stirring shaft and the action of gravity, and adds the melting-assisting balls to promote the full contact of solid and liquid so as to ensure the full liquefaction of the injection molding raw material.

The technical scheme is as follows:

a horizontal mixer for processing polyethylene raw materials comprises a mixer body, a main shaft, a mixing shaft, a motor, a round shaft, a transmission crawler, a base plate, a heat-insulating layer, a filling port, a sealing cover, a support rod, a mechanical rotating shaft and a screen mesh; the machine body is a hollow round table metal barrel which is horizontally placed; the machine body is fixed on the base plate through a support rod; an insulating layer is arranged in the machine body; the main shaft is horizontally fixed in the machine body, and two ends of the main shaft pass through the centers of the two bottom surfaces of the machine body; the stirring shaft is sleeved outside the part of the main shaft, which is positioned in the machine body; the main shaft is sleeved with a mechanical rotating shaft at one side of the machine body with larger radius at the bottom surface, and the mechanical rotating shaft is fixedly connected with the machine body; one side of the main shaft, which is different from the mechanical rotating shaft, is connected with a motor rotating shaft through a round shaft and a transmission crawler; an injection port is arranged on the inclined plane of the machine body, which is different from one side of the mechanical rotating shaft; a sealing cover is arranged outside the injection port; the screen cloth sets up in the sprue and is located the inside part of organism.

Before daily processing and material injection, keeping the material injection port upward; after liquefaction is finished, the machine body is rotated through the mechanical rotating shaft to enable the material injection port to face downwards, and the material can be discharged by opening the sealing cover; according to the utility model, the method of feeding materials above and discharging materials below the traditional plastic stirrer is replaced by the method of feeding materials and discharging materials below the traditional plastic stirrer through a single feeding port, so that the use of plastic and rubber sealing rings in a high-temperature environment is reduced, and the sealing effect can be optimized.

As a preferred choice of the horizontal mixer for processing polyethylene raw materials, sealing rings are further arranged at the joints of the main shaft and the two bottom surfaces of the mixer body.

In order to prevent the problem that the clearance is generated due to the fact that the main shaft is not properly installed or the main shaft and the machine body are connected and loosened after long-term use, the sealing ring is arranged to increase friction between the main shaft and the machine body and prevent the main shaft and the machine body from wholly vibrating under the driving of internal stirring.

As a preferable preference of the horizontal stirring machine for processing polyethylene raw materials, the stirring shaft is made of 316L stainless steel, and a plurality of dendritic branches are arranged around the stirring shaft.

The melting point of the stainless steel is far higher than that of the injection molding raw material, and no physical and chemical reaction occurs at high temperature.

As a preferred choice of the horizontal stirring machine for processing the polyethylene raw material, the heat-insulating layer is provided with three layers from inside to outside: a heating layer, a basalt rock wool layer and a foamed cement layer; the heating layer is PTC electric auxiliary heating.

The PTC is taken as a self-heating ceramic with mature technology, is safe and convenient to use, has poor heat conduction performance, has excellent heat preservation effect after being fully preheated, and is beneficial to reducing energy consumption; the basalt rock wool and the foaming cement are common heat-insulating materials in the industrial field at the present stage, have low cost and good heat-insulating property, and are beneficial to fully heating injection molding raw materials.

As a preferable choice of the horizontal mixer for processing polyethylene raw materials, the sealing cover is internally provided with a rubber sealing ring internal thread; the internal thread of the rubber sealing ring is liquefied rubber or aerogel filled on the internal thread of the sealing cover.

Because the traditional metal cover body has poor sealing effect only by virtue of metal internal threads, the internal threads are filled with liquefied rubber or aerogel, so that the sealing property of the metal cover body can be enhanced; simultaneously, because of the zone of heating sets up in the heat preservation, so the organism is located the partial temperature of discharge gate and is not high, can not lead to liquefied rubber or aerogel liquefaction, can use for a long time and can not deteriorate.

As a preferred choice of the horizontal stirring machine for processing the polyethylene raw material, a melting-assisting ball is also placed in the heat-insulating layer; the melting-assisting ball is a steel ball with the radius of 5 cm.

In order to solve the problems of solid-liquid layering and difficult full liquefaction of the traditional plastic stirring machine, the metal melting-assisting ball is additionally arranged; the steel density is far greater than that of the injection molding raw material and the liquefied product thereof, and the steel is deposited at the bottom of the machine body without being driven by the stirring shaft and moves along with the stirring shaft under the action of the stirring shaft; meanwhile, the melting-assisting ball is in a motion state for a long time under the action of gravity, so that solid-liquid full contact, friction and dissolution of the plasticizing raw material are driven, the liquefaction effect is optimized, and the product quality is improved; meanwhile, the melting point of the steel is far higher than that of the plastic, so the steel does not react at the plastic dissolving temperature; in addition, the radius of the melting-assisting ball is far larger than the aperture of the screen mesh, so that the melting-assisting ball does not need to be taken out during material injection and discharge, and the melting-assisting ball is convenient to use and has an excellent effect.

As a preferable selection of the horizontal stirring machine for processing the polyethylene raw material, the mesh size of the screen is 100 meshes; the screen is detachable.

After liquefaction, the sealing cover can be opened for discharging, and the injection molding raw material particles with the particle size of more than 150 mu m can be filtered out through a 100-mesh sieve, so that the injection molding raw material particles are retained and continuously dissolved in a machine body, and the quality of the raw material is improved.

The utility model has the beneficial effects that:

according to the horizontal stirring machine for processing the polyethylene raw material, the problem that the traditional vertical plastic stirring machine cannot be sufficiently liquefied due to solid-liquid layering is solved through the design of the horizontal structure and the stirring shaft, and in the structure, solid and liquid move at high speed under the pushing of the melting-assisting ball, so that the problem is sufficiently solved; because the metal has strong heat conductivity, the temperature of the melting-assisting ball is slightly higher than that of the plasticizing liquid, the injection molding raw material which is not fully liquefied contacts with the melting-assisting ball at high temperature when colliding with the melting-assisting ball, so that the melting is assisted, and the stirring and liquefying effects are optimized in sequence; in addition, the utility model is provided with good sealing devices at all positions, which is more energy-saving compared with the traditional vertical mixer and greatly improves the heat energy utilization rate.

Drawings

FIG. 1 is a sectional view of a horizontal mixer for processing a polyethylene feedstock according to example 1 of the present invention;

FIG. 2 is a sectional view of a horizontal mixer for processing a polyethylene feedstock according to example 2 of the present invention;

FIG. 3 is a schematic view of a sealing cover of a horizontal mixer for processing polyethylene raw material according to example 2 of the present invention;

in the figure: 1. the machine comprises a machine body, a main shaft 2, a stirring shaft 3, a motor 4, a circular shaft 5, a transmission crawler 6, a base plate 7, a heat insulation layer 8, a filling port 9, a sealing cover 10, a support rod 11, a mechanical rotating shaft 12, a sealing ring 13, a rubber sealing ring internal thread 14, a melting assisting ball 15 and a screen 16.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

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

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

A horizontal mixer for processing polyethylene raw materials comprises a machine body 1, a main shaft 2, a mixing shaft 3, a motor 4, a round shaft 5, a transmission crawler 6, a base plate 7, a heat-insulating layer 8, a filling opening 9, a sealing cover 10, a support rod 11, a mechanical rotating shaft 12 and a screen 16; the machine body 1 is a hollow round table metal barrel which is horizontally placed; the machine body 1 is fixed on the base plate 7 through a support rod 11; an insulating layer 8 is arranged in the machine body 1; the main shaft 2 is horizontally fixed inside the machine body 1, and two ends of the main shaft pass through the centers of two bottom surfaces of the machine body 1; a stirring shaft 3 is sleeved outside the part, positioned inside the machine body 1, of the main shaft 2; the main shaft 2 is sleeved with a mechanical rotating shaft 12 at one side of the machine body 1 with larger radius of the bottom surface, and the mechanical rotating shaft 12 is fixedly connected with the machine body 1; one side of the main shaft 2, which is different from the side of the mechanical rotating shaft 12, is connected with a rotating shaft of a motor 4 through a round shaft 5 and a transmission crawler 6; a charging hole 9 is arranged on the inclined plane of the machine body 1, which is different from one side of the mechanical rotating shaft 12; a sealing cover 10 is arranged outside the injection port 9; the screen 16 is arranged at the part of the injection port 9 inside the machine body 1.

Before plastic melting, checking sealing devices of all parts; rotating the mechanical rotating shaft 12 to enable the injection port 9 to face upwards; a plasticizing raw material, a new and old plastic material and color master are added from an injection port 9, a screen 16 is installed, a motor 4 is started, and the materials are fully heated and dissolved; after the solution is sufficiently dissolved, the mechanical rotating shaft 12 is rotated to make the injection port 9 face downwards, and the material is discharged.

Example 2

The horizontal mixer for processing the polyethylene raw materials is characterized in that a sealing ring 13 is further arranged at the joint of the main shaft 2 and the two bottom surfaces of the mixer body 1.

According to the horizontal stirring machine for processing the polyethylene raw materials, the stirring shaft 3 is made of 316L stainless steel, and a plurality of dendritic branches are arranged around the stirring shaft.

The horizontal mixer for processing polyethylene raw materials is characterized in that the heat-insulating layer 8 is provided with three layers which are sequentially from inside to outside: a heating layer, a basalt rock wool layer and a foamed cement layer; the heating layer is PTC electric auxiliary heating.

In the horizontal mixer for processing the polyethylene raw material, the sealing cover 10 is internally provided with a rubber sealing ring internal thread 14; the internal thread 14 of the rubber sealing ring is liquefied rubber or aerogel filled on the internal thread of the sealing cover 10.

The horizontal mixer for processing the polyethylene raw material is characterized in that a melting-assisting ball 15 is also placed in the heat-insulating layer 8; the melting-assisting balls 15 are steel balls with the radius of 5 cm.

The screen mesh 16 of the horizontal stirrer for processing the polyethylene raw material is 100 meshes; the screen 16 is removable.

In order to optimize the liquefaction effect, a plurality of melting-assisting balls 15 need to be put into the machine body 1 so as to increase the solid-liquid collision and contact of the injection molding raw materials.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination between the embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the idea of the present invention.

Claims

1. A horizontal mixer for processing polyethylene raw materials is characterized by comprising a machine body (1), a main shaft (2), a mixing shaft (3), a motor (4), a round shaft (5), a transmission crawler (6), a base plate (7), a heat-insulating layer (8), a feeding port (9), a sealing cover (10), a support rod (11), a mechanical rotating shaft (12) and a screen (16); the machine body (1) is a hollow round table metal barrel which is horizontally placed; the machine body (1) is fixed on the base plate (7) through a support rod (11); a heat-insulating layer (8) is arranged in the machine body (1); the main shaft (2) is horizontally fixed inside the machine body (1), and two ends of the main shaft pass through the centers of the two bottom surfaces of the machine body (1); a stirring shaft (3) is sleeved outside the part, located inside the machine body (1), of the main shaft (2); the main shaft (2) is sleeved with a mechanical rotating shaft (12) at one side of the machine body (1) with larger radius of the bottom surface, and the mechanical rotating shaft (12) is fixedly connected with the machine body (1); one side of the main shaft (2), which is different from the mechanical rotating shaft (12), is connected with a rotating shaft of the motor (4) through a round shaft (5) and a transmission crawler belt (6); a charging hole (9) is arranged on the inclined plane of the machine body (1) different from one side of the mechanical rotating shaft (12); a sealing cover (10) is arranged outside the injection port (9); the screen (16) is arranged at the part, located in the machine body (1), of the injection port (9).

2. The horizontal mixer for processing polyethylene raw materials according to claim 1, wherein the joint of the main shaft (2) and the two bottom surfaces of the machine body (1) is further provided with a sealing ring (13).

3. The horizontal mixer for processing polyethylene raw materials as claimed in claim 1, wherein the stirring shaft (3) is made of 316L stainless steel, and is provided with a plurality of dendritic branches around the stirring shaft.

4. The horizontal mixer for processing polyethylene raw materials according to claim 1, wherein the heat-insulating layer (8) comprises three layers, which are sequentially from inside to outside: a heating layer, a basalt rock wool layer and a foamed cement layer; the heating layer is PTC electric auxiliary heating.

5. The horizontal mixer for processing polyethylene raw materials as claimed in claim 1, wherein the sealing cover (10) is further provided with an internal thread (14) of a rubber sealing ring; the internal thread (14) of the rubber sealing ring is liquefied rubber or aerogel filled on the internal thread of the sealing cover (10).

6. The horizontal mixer for processing polyethylene raw materials according to claim 1, characterized in that the heat-insulating layer (8) is internally provided with a melting-assisting ball (15); the melting-assisting ball (15) is a steel ball with the radius of 5 cm.

7. The horizontal mixer of claim 1, wherein the screen (16) has a 100-mesh aperture; the screen (16) is detachable.