WO2012009992A1

WO2012009992A1 - Plastic film squeezer

Info

Publication number: WO2012009992A1
Application number: PCT/CN2011/073016
Authority: WO
Inventors: 郑勇
Original assignee: 张家港市联达机械有限公司
Priority date: 2010-07-20
Filing date: 2011-04-19
Publication date: 2012-01-26
Also published as: CN102147187A; CN102147187B; CN101907388A

Abstract

Disclosed is a plastic film squeezer, which includes a machine barrel (2) with a feeding port (4) and a screw conveyor (6) movably arranged in the machine barrel (2). The screw conveyor (6) includes a shaft coaxially arranged in the machine barrel (2) and helical blades arranged on the shaft. Water discharging holes are provided on the wall of the machine barrel (2). One end of the screw conveyor (6) is connected with a driving device (7, 8, 9, 10, 11, 12) located at the outside of the machine barrel (2), while the other end extends outside of the machine barrel (2) and is rotatably supported by a bearing (13). An outer friction damping disc (14) is fixed at one end of the machine barrel (2) and an inner friction damping disc (15) is fixed on the screw conveyor (6). An annular channel (17) is formed between the inner wall of the outer friction damping disc (14) and the outer wall of the inner friction damping disc (15), the width of which is less than the distance between the inner wall of the machine barrel (2) and the outer surface of the shaft of the screw conveyor (6). Two ends of the channel (17) are respectively communicated with the inner cavity of the machine barrel (2) and a discharging port (20). At least a friction block (18), which is located on the inner wall of the outer friction damping disc (14) or the outer wall of the inner friction damping disc (15), is arranged in the channel (2).

Description

[Name of invention made by ISA according to Rule 37.2] Plastic film extruder

Technical field

The invention relates to the field of plastic recycling technology, in particular to a dehydration drying device for plastic film.

Background technique

In recent years, the application range of plastic products at home and abroad has become more and more extensive. However, discarded plastics are not easily rotted, which will seriously affect the human ecological environment. Therefore, people began to recycle the discarded plastics and reuse them. However, the waste plastic must be pulverized into plastic film fragments before being reused, and then washed and dried. The drying of the plastic film fragments after cleaning is mainly a combined drying method in which a large centrifugal dewatering machine performs dehydration and a high-power heating system for drying. The drying process is: putting plastic film fragments into a large centrifugal dewatering machine, generating centrifugal force under the high-speed rotation of the large centrifugal dewatering machine to achieve preliminary dewatering, and the suction fan blows the hot film generated by the initially dehydrated plastic film fragments and the high-power heater. Inhaled and mixed, then blown into the drying pipe and the collection bin, and further dried during the conveying process. The disadvantages are: poor drying effect, high energy consumption, high noise, high equipment failure rate, high maintenance and repair cost, and large floor space.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a film squeezer which can improve the drying effect and reduce the cost.

In order to solve the above problems, the technical solution adopted by the present invention is: a film squeezing machine comprising a barrel having a feeding port, a screw conveying rod disposed in the inner cavity of the barrel, and the screw conveying rod comprises the same barrel a shaft body and a spiral blade on the rod body, the barrel wall is provided with a drainage hole, one end of the screw conveying rod is connected with a driving device outside the barrel, and the other end of the screw conveying rod is extended to the outside of the barrel And through a bearing is rotatably supported, one end of the barrel is fixedly connected with the friction material outer disc of the material, and the spiral conveying rod is fixedly connected with a friction material inner disc, and the friction inner disc is located inside the outer disc of the friction material, and the friction is blocked. An annular passage is formed between the inner wall of the outer disc and the outer wall of the inner ring of the resistive friction. The width of the passage is smaller than the distance between the outer surface of the rod of the screw conveying rod and the inner wall of the barrel, and one end of the passage is connected to the inner cavity of the barrel. The other end of the passage is a material outlet, and at least one friction block for the friction material is disposed inside the passage, and the friction block is fixed on the inner wall of the friction outer disc or the friction material The outer wall of the inner tray.

Preferably, the friction-resistant outer disk is a hollow truncated cone structure, and the friction-resistant inner disk has a truncated cone shape, and the passage formed between the inner wall of the friction-resistant outer disk and the outer wall of the friction-resistant inner disk is flared.

Preferably, the end of the friction-resistant inner disc is provided with a screw hole that cooperates with the rod body of the screw conveying rod, and the material-resistant friction inner disc is fixed on the screw conveying rod through the screw hole set.

Preferably, the friction material outer disc is connected with the discharge cylinder, the material outlet of the passage is connected with the inside of the discharge cylinder, and the lower part of the discharge cylinder is a discharge port, and the bearing for supporting the screw conveying rod is fixed to the discharge cylinder. On the outer wall, the other end of the screw conveyor rod is disposed inside the bearing.

Preferably, the driving device comprises a motor, the output shaft of the motor is provided with a driving pulley, the driving pulley is connected with a driven pulley through a belt, the driven pulley is arranged on the input shaft of the reduction gear box, the transmission shaft of the reduction gear box and the screw conveying rod Connected by a coupling between them.

Preferably, the barrel is provided with a feed hopper, and the upper part of the feed hopper is a feed port.

Preferably, the film squeezer further comprises a frame, the barrel is disposed on the frame, and the frame is further provided with a bearing seat, the bearing seat is connected to the barrel, and one end of the screw conveying rod passes through the bearing seat and It is rotatably supported by the bearing housing.

The invention has the beneficial effects that: when the screw conveying rod rotates to transport the plastic film fragments to the material outlet, the plastic film fragments are squeezed and dried in the passage between the inner wall of the friction preventing outer disc and the outer wall of the friction preventing inner disc. The heat is frictionally generated by the friction block in the channel, and the plastic film fragments are simultaneously heated and dried, and the double action of squeezing and drying makes the drying effect better; and the film squeezing machine of the present invention has low energy consumption and low noise. Easy maintenance and small footprint.

DRAWINGS

Figure 1 is a front view showing the structure of the film squeeze dryer of the present invention;

Figure 2 is an enlarged schematic view showing the frictional outer disk of the resisting material and the inner portion of the friction-resistant inner disk of Figure 1;

In the figure: 1, rack, 2, barrel, 3, feed hopper, 4, feed port, 5, bearing seat, 6, screw conveyor rod, 7, motor, 8, drive pulley, 9, belt, 10 , reduction gear box, 11, passive pulley, 12, coupling, 13, bearing, 14, friction material outer disc, 15, friction material inner disc, 16, screw hole, 17, channel, 18, friction block, 19, out Cartridge, 20, discharge port.

detailed description

The film extrusion machine of the present invention will be further described in detail below by way of specific examples.

As shown in FIG. 1 , the film squeezing machine comprises a frame 1 , and an organic cylinder 2 is arranged on the frame. The wall of the barrel 2 is densely covered with a drainage hole, and the barrel 2 is provided with a feeding hopper 3 and a feeding hopper 3 The upper part is the feeding port 4, one end of the barrel 1 is connected with the bearing housing 5, the bearing housing 5 is fixedly connected with the frame 1, and the inner movement of the barrel 2 is provided with a screw conveying rod 6, and the screw conveying rod 6 One end of the movable body is disposed inside the bearing housing 5, and is connected to a driving device located outside the bearing housing 5. The driving device includes a motor 7 fixed on the frame 1. The output shaft of the motor 7 is provided with a driving pulley 8, a driving pulley 8 is connected to the driven pulley 11 through the belt 9, the driven pulley 11 is arranged on the input shaft of the reduction gearbox 10, and the transmission shaft of the reduction gearbox 10 and the screw conveying rod 6 are connected by a coupling 12, the motor 7 And the reduction box 10 is fixed on the frame 1, and the other end of the barrel 2 is connected with the friction-resistant outer disk 14. As shown in FIG. 2, the friction-resistant outer disk 14 is a hollow frustoconical structure. The inside of the material-resistant friction outer disk 14 is provided with a material-resistant friction inner disk 15, and the resistance of the material is rubbed The disc 15 has a conical structure, and the inside of the resisting friction inner disc 15 has a screw hole 16 matched with the screw conveying rod 6, and the resisting friction inner disc 15 is fixed on the screw conveying rod 6 through the screw hole 16 to block the friction outer disc 14 An annular passage 17 is formed between the inner wall and the outer wall of the friction-resistant inner disk 15. The one end of the passage 17 communicates with the inside of the barrel 2. The inside of the passage 17 is evenly provided with twelve friction blocks 18 in the circumferential direction. The inner wall of the friction outer disk 14 and the outer wall of the friction-resistant inner disk 15 are respectively uniformly provided with six friction blocks 18 in the circumferential direction, and the resistance friction outer disk 14 is connected to the discharge cylinder 19, and the other end of the passage 17 The lower portion of the discharge cylinder 19 is in communication with the inside of the discharge cylinder 19, and the bearing 13 is fixed to the outer wall of the discharge cylinder 19, and the other end of the screw conveyor rod 6 is disposed inside the bearing 13.

The working principle of the invention is that the plastic film fragments are continuously placed in the feeding port 4 of the feeding hopper 3, the motor 7 drives the passive pulley 11 to rotate through the belt 9, and the transmission shaft of the reduction gearbox 10 drives the screw conveying through the coupling 12. When the rod 6 rotates, the rotation of the screw conveying rod 6 causes the plastic film fragments to be conveyed in the direction of the discharge port 20. During the conveying process, the passage 17 between the outer disc 14 and the resisting friction inner disc 15 is narrow due to the resistance of the material, along with the plastic As the film fragments are continuously fed, the plastic film fragments accumulate in the barrel 2, forming a pressure. Under the action of the pressure, the water in the plastic film fragments is squeezed out and flows out from the drainage holes on the wall of the barrel 2. When the pressure reaches a certain level, the plastic film fragments are pushed into the passage 17, and at the same time, the rotation of the screw conveying rod 6 drives the rotation of the resisting friction inner disc 15, and the friction block 18 located on the outer wall of the inner friction disc 15 is also With the rotation, the plastic film fragments located in the passage 17 are heated by the friction of the friction block 18 on the outer wall of the resistive friction inner disc 15 and the inner wall of the resist friction outer disc 14, thereby making the plastic thin. Further evaporation of moisture in the chips, so that the plastic film fragments dried, the plastic film fragments after drying from the other end of the passage 17 is extruded into the cartridge 20 after the discharge from the discharge port 19.

The invention has the beneficial effects that the plastic film fragments are double-dried by squeezing and drying, and the drying effect is better; the film squeezing machine of the invention has low energy consumption, low noise, convenient maintenance and small floor space.

While the invention has been described with respect to the specific embodiments of the present invention, it is apparent that many modifications may be made to the prior art and process without departing from the scope and spirit of the invention. In the technical field of the present invention, various changes can be made within the technical scope of the present invention as long as the general knowledge is grasped.

Claims

1. A film squeezing machine characterized in that it comprises a barrel having a feeding port, a screw conveying rod movably disposed in the inner cavity of the barrel, the screw conveying rod comprising a rod body coaxially arranged with the barrel and located on the rod body The spiral blade is provided with a drainage hole on the wall of the barrel, and one end of the screw conveying rod is connected with a driving device located outside the barrel, and the other end of the screw conveying rod extends to the outside of the barrel and is rotatably supported by a bearing. One end of the barrel is fixedly connected with the friction-resistant outer disc of the material, and the spiral conveying rod is fixedly connected with a friction-resistant inner disc, and the friction-resistant inner disc is located inside the outer disc of the friction-resistant outer disc, and the inner wall of the outer disc of the friction-resistant outer disc is rubbed against the inner disc of the material. An annular passage is formed between the outer walls, the width of the passage is smaller than the distance between the outer surface of the rod of the screw conveying rod and the inner wall of the barrel, one end of the passage is connected with the inner cavity of the barrel, and the other end of the passage is a material outlet. The inside of the passage is provided with at least one friction block for friction material, and the friction block is fixed on the inner wall of the friction-resistant outer disk or the outer wall of the friction-resistant inner disk.

2. The film squeezing machine according to claim 1, wherein the material-resistant friction outer disk has a hollow truncated cone structure, and the material-resistant friction inner disk has a truncated cone shape, and is formed on the inner wall of the friction-resistant outer disk and the outer wall of the inner friction plate of the material-resistant friction material. The passage between them is flared.

3. The film squeezing machine according to claim 1, wherein the end of the resistive friction inner disc is provided with a screw hole that cooperates with the rod body of the screw conveying rod, and the resisting friction inner disc is fixed to the screw conveying rod by the screw hole set.

4. The film squeezing machine according to claim 1, wherein the material-resistant friction outer disk is connected to the discharge cylinder, the material outlet of the passage is connected to the inside of the discharge cylinder, and the lower portion of the discharge cylinder is a discharge port. The bearing for supporting the screw conveyor rod is fixed to the outer wall of the discharge cylinder, and the other end of the screw conveyor rod is disposed inside the bearing.

5. The film squeezing machine according to claim 1, wherein said driving device comprises a motor, and an output pulley of the motor is provided with a driving pulley, and the driving pulley is connected to a driven pulley through a belt, and the driven pulley is disposed in a reduction gear box On the input shaft, the transmission shaft of the reduction gearbox and the screw conveyor rod are connected by a coupling.

6. The film squeezer according to claim 1, wherein the barrel is provided with a feed hopper, and an upper portion of the feed hopper is a feed port.

7. The film squeezing machine according to any one of claims 1 to 6, further comprising a frame, the barrel is disposed on the frame, and the frame is further provided with a bearing seat, the bearing seat is connected with the barrel, and the spiral One end of the delivery rod passes through the bearing housing and is rotatably supported by the bearing housing.

8. The film spin-drying machine according to any one of claims 1 to 6, wherein the inner wall of the friction-resistant outer disk and the outer wall of the friction-resistant inner disk are respectively provided with friction blocks.