CN209095961U - A kind of efficient PE thin film extruding machine - Google Patents

Abstract

The utility model discloses a kind of efficient PE thin film extruding machines, including extruded tube, extruding screw and heating tube；Extruded tube is equipped with the first protrusion and the second protrusion from cylinder to conically shaped transition position；First protrusion and the second lobed interior are equipped with cavity；Extruding screw sequentially passes through barrel, second bearing seat and the first bearing seat of extruded tube；Heating tube is spiral type heated pipe, and the section of heating tube is rectangle；PE thin film extruding machine provided by the utility model, heating process uniform high-efficiency；Extruding screw rotation process is reliable and stable；Accurate control mass flow；Improve the production efficiency and qualification rate of plastic film.

Description

An efficient PE film extruder

technical field

The utility model relates to a plastic film forming equipment, in particular to an efficient PE film extruder.

Background technique

Production process of plastic film: the mixed material is dried and added to the hopper of the extruder. With the rotation of the feeding screw, the material is forcibly pushed to the die head. Due to the continuous reduction of the volume of the screw groove, the material is continuously removed during the advancing process. Compacted, extruded, sheared, increased in temperature, and absorbed the heat source of the heater, so that the temperature of the material gradually increases and undergoes a three-state transition, that is, it gradually changes from a glass state to a highly elastic state, and finally becomes a viscous flow state. , to achieve complete plasticization, and extrude the film from the die.

Applicant Lv Jiangpeng applied for a patent with application number CN201721864847.X on December 27, 2017, which provides an extruder for PE film production, including a fixed base, and a shell is installed on the top left side of the fixed base A main pulley is installed on the first rotating shaft, a machine barrel is installed on the right upper end of the casing, and the machine barrel is fixedly connected with the fixed base through a support rod, and an extrusion screw is installed in the machine barrel, and A slave pulley is installed at the left end of the extrusion screw, the main pulley is connected with the slave pulley through a belt drive, a forming head is installed at the bottom of the extrusion head, and a second motor is installed on the right side of the fixed base, A second rotating shaft is installed on the second reducer, and a winding frame is installed on the second rotating shaft.

The above structure can realize the heating of the material, but the heating process is slow and uneven, the material feeding is slow, and it is easy to accumulate and block at the feeding port, which is not conducive to mass production, so it is necessary to improve it.

Utility model content

The technical problem to be solved by the utility model is to solve the above deficiencies, and to provide a high-efficiency PE film extruder, which can shorten the heating time of materials and realize uniform heating of materials; accurately control the material flow and improve the production efficiency and qualified rate of PE films .

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A high-efficiency PE film extruder includes a frame, a feeding pipe, a feeding box, an extrusion cylinder, an extrusion screw and a heating pipe; the frame is provided with two-layer frames, and the first frame is from bottom to top. and the second frame; the extrusion barrel is provided with a first protrusion and a second protrusion at the transition from the cylinder to the conical barrel; the first protrusion and the second protrusion are internally provided with a cavity, the first protrusion The number of the protrusions and the second protrusions is four, and they are evenly distributed on the outer cylinder wall of the extrusion cylinder; the extrusion screw passes through the cylinder wall, the second bearing seat and the first bearing seat of the extrusion cylinder in sequence; The second bearing seat is fixed on the cylinder wall of the extrusion cylinder, the first bearing seat is fixed on the bearing seat bracket; the bearing seat bracket is fixed on the upper surface of the second frame; the heating tube is a spiral type The heating pipe has a rectangular cross section, and a thermal insulation layer is arranged on the outer surface of the heating pipe; the thermal insulation layer is made of aluminum silicate fiber cloth.

Further, the main body of the extrusion cylinder is cylindrical, and one end is in the shape of a conical cylinder.

Further, a gas one-way valve is installed on the first protrusion.

Further, an extrusion inner cavity is provided inside the extrusion cylinder, and the extrusion inner cavity is communicated with the first convex inner cavity.

Further, a liquid one-way valve is installed on the second protrusion.

Further, the inner cavity of the second protrusion is communicated with the inner cavity of the extrusion.

Further, the top of the feed pipe is provided with a particle flow meter, and the particle flow meter and the feed pipe are connected by flanges.

Further, the top of the particle flow meter is provided with a feed box, and the feed box and the particle flow meter are connected by a flange in the middle.

Further, the top of the feeding box is provided with a box cover, and the box cover and the feeding box are connected by a hinge.

Further, a dust removal pipe is arranged on the box cover.

After adopting the above technical scheme, the utility model has the following advantages compared with the prior art:

The PE film extruder provided by the utility model adopts a spiral heating tube for heating, which is uniform and efficient, and is provided with a thermal insulation layer, which can not only reduce the heat loss, but also avoid the direct contact between the operator and the electric heater. The safety of the extruder is improved; the end of the extrusion screw is fixed by two bearing seats, which makes the rotation process more stable and reliable; the material flow is precisely controlled to prevent the material from solidifying in the extrusion barrel and the device cannot work normally, which improves the Production efficiency and pass rate of PE film.

The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the enlarged structural representation of A place in Fig. 1;

Figure 3 is a schematic structural diagram of the heating pipe of the present invention.

In the figure, 1-frame, 2-first frame, 3-second frame, 4-motor, 5-reducer, 6-first pulley, 7-belt, 8-second pulley, 9-bearing Seat bracket, 10-first bearing seat, 11-second bearing seat, 12-extrusion cylinder, 13-extrusion screw, 14-extrusion inner cavity, 15-heating cavity, 16-heating tube, 17-heating surface , 18-First protrusion, 19-Second protrusion, 20-Gas check valve, 21-Liquid check valve, 22-Insulation layer, 23-Feed pipe, 24-First flange, 25 -Particle flow meter, 26-second flange, 27-feed box, 28-box cover, 29-hinge, 30-dust pipe.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described with reference to the accompanying drawings.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation , are constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Example

As shown in Figures 1 and 2, the present invention provides a high-efficiency PE film extruder, including a frame 1, an extrusion system and a drive system; the frame 1 is provided with a two-layer frame, from bottom to The upper part is the first frame 2 and the second frame 3 in sequence; the upper part of the first frame 2 is provided with a driving system, and the upper part of the second frame 3 is provided with a pressing system; the driving system includes a motor 4, a reducer 5, The first pulley 6 and the belt 7; the motor 4 and the reducer 5 are arranged on one end of the upper surface of the first frame 2, the output shaft of the reducer 5 is provided with a first pulley 6, and the first pulley 6 is provided with a belt 7.

The extrusion system includes an extrusion cylinder 12, an extrusion screw 13, a heating pipe 16, a feed pipe 23 and a feed box 27; The outlet cylinder 12 is laterally arranged on the second frame 3; the extrusion cylinder 12 is provided with a first protrusion 18 and a second protrusion 19 in sequence from right to left at the transition from the cylinder to the conical cylinder; the first protrusion There is a cavity inside the lift 18, the number of the first protrusions 18 is four, and they are evenly distributed on the outer cylinder wall of the extrusion cylinder 12, and a gas check valve 20 is installed on the first protrusion 18; The valve 20 is used to discharge the gas produced by the material extrusion process. The number of the gas one-way valves 20 is the same as that of the first protrusion 18; the second protrusion 19 is provided with a cavity inside, and the number of the second protrusion 19 is four. A liquid one-way valve 21 is installed on the second protrusion 19; the liquid one-way valve 21 is used to discharge the moisture generated during the extrusion process of the material, and the liquid The number of the one-way valves 21 is the same as that of the second protrusions 19; the extrusion cylinder 12 is provided with an extrusion inner cavity 14, the extrusion inner cavity 14 is communicated with the inner cavity of the first protrusion 18, and the extrusion inner cavity 14 is connected to the inner cavity of the first protrusion 18. The inner cavity of the second protrusion 19 is communicated with each other, and the extrusion cavity 14 is provided with an extrusion screw 13; the right end of the extrusion screw 13 passes through the right side wall of the extrusion cylinder 12, the second bearing seat 11 and The first bearing seat 10; the second bearing seat 11 is fixed on the right cylinder wall of the extrusion cylinder 12; the first bearing seat 10 is fixed on the bearing seat bracket 9; the bearing seat bracket 9 is vertically fixed on the The upper surface of the second frame 3; the right end of the extrusion screw 13 is sleeved with a second pulley 8; the second pulley 8 is connected with the first pulley 6 of the drive system through a belt 7.

As shown in FIG. 3 , the heating pipe 16 is a helical heating pipe, the section of the heating pipe 16 is rectangular, and the inner side of the rectangle forms a heating surface 17 , and the heating surface 17 is sleeved on the outer surface of the cylinder wall of the extrusion cylinder 12 ; The advantage of using a spiral rectangular heating tube is that the heating surface is large and the heat is uniform; the outer surface of the heating tube 16 is provided with a thermal insulation layer 22, which is made of aluminum silicate fiber cloth, aluminum silicate The fiber cloth has excellent thermal insulation and fireproof performance; a feed pipe 23 is installed above the wall of the right end of the extrusion cylinder 12; the top of the feed pipe 23 is provided with a particle flow meter 25, and the feed pipe 23 and the particle flow meter 25 pass through The first flange 24 in the middle is connected, and the particle flow meter 25 is used to accurately control the material flow to prevent the material from accumulating and blocking during feeding. The top of the particle flow meter 25 is provided with a feeding box 27; the feeding box 27 is connected to the particle The flow meter 25 is connected by the second flange 26 in the middle, and the top of the feed box 27 is provided with a box cover 28; Rotating along the hinge 29, the box cover 28 is provided with a dust removal pipe 30, and the dust removal pipe 30 is connected to a dust collector to remove dust from the materials.

The specific implementation process: start the motor 4, the motor 4 drives the extrusion screw 13 to rotate, and when the motor 4 is started, the heating pipe 16 is energized and heated; the mixed material is added into the feeding box 27, the box cover 28 is closed, and the dust removal pipe 30 The dust removal work begins, the material begins to fall, the material enters the extrusion cavity 14 through the particle flow meter 25, and the material is extruded and conveyed from right to left under the cooperation of the extrusion screw 13 and the inner wall of the extrusion cylinder 12, and the material is advancing During the process, the material is continuously extruded and sheared, the temperature is raised, and the heat of the heating tube 16 is absorbed. The temperature of the material gradually increases, from a glass state to a highly elastic state, and then extruded into a viscous flow state, and finally enters the forming head. forming.

The above are examples of the best embodiments of the present invention, and the parts that are not described in detail are the common knowledge of those of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the present invention is also within the protection scope of the present invention.

Claims (10)

1. A high-efficiency PE film extruder, comprising a frame (1), a feeding pipe (23) and a feeding box (27), the frame (1) is provided with two-layer frames, which are respectively from bottom to top It is a first frame (2) and a second frame (3), characterized in that: it further comprises an extrusion cylinder (12), an extrusion screw (13) and a heating pipe (16); the extrusion cylinder (12) is composed of The transition from the cylinder to the conical cylinder is provided with a first protrusion (18) and a second protrusion (19); the first protrusion (18) and the second protrusion (19) are provided with cavities inside, The number of the first protrusions (18) and the second protrusions (19) is four respectively, and they are respectively distributed on the outer barrel wall of the extrusion cylinder (12); the extrusion screw (13) passes through the extrusion cylinder in sequence. (12) barrel wall, second bearing seat (11) and first bearing seat (10); the second bearing seat (11) is fixed on the barrel wall of the extrusion barrel (12), the first bearing seat (10) is fixed on the bearing seat bracket (9); the bearing seat bracket (9) is fixed on the upper surface of the second frame (3); the heating tube (16) is a spiral heating tube, and the heating tube (16) ) has a rectangular cross section, and the outer surface of the heating pipe (16) is provided with a thermal insulation layer (22); the thermal insulation layer (22) is made of aluminum silicate fiber cloth. 2 . The high-efficiency PE film extruder according to claim 1 , wherein the main body of the extrusion barrel ( 12 ) is in the shape of a cylinder, and one end is in the shape of a conical cylinder. 3 . 3. The high-efficiency PE film extruder according to claim 1, wherein a gas check valve (20) is installed on the first protrusion (18). 4. The high-efficiency PE film extruder according to claim 3, characterized in that: the extrusion barrel (12) is provided with an inner extrusion cavity (14), and the extrusion inner cavity (14) ) communicates with the inner cavity of the first protrusion (18). 5. An efficient PE film extruder according to claim 1, characterized in that: a liquid check valve (21) is installed on the second protrusion (19). 6. An efficient PE film extruder according to claim 5, characterized in that: the inner cavity of the second protrusion (19) is communicated with the extrusion inner cavity (14). 7. The high-efficiency PE film extruder according to claim 1, characterized in that: a particle flow meter (25) is provided at the top of the feed pipe (23), and the particle flow meter (25) is connected to the feed pipe. The pipes (23) are connected by flanges. 8. The high-efficiency PE film extruder according to claim 7, characterized in that: the top of the particle flow meter (25) is provided with a feed box (27), the feed box (27) and the particle flow rate The gauge (25) is flanged. 9. The high-efficiency PE film extruder according to claim 8, characterized in that: the top of the feeding box (27) is provided with a box cover (28), and the box cover (28) is connected to the feeding box (28). 27) Connected by hinges (29). 10. The high-efficiency PE film extruder according to claim 9, characterized in that: a dust removal pipe (30) is provided on the box cover (28).