CN219171613U

CN219171613U - PP board coextrusion production line

Info

Publication number: CN219171613U
Application number: CN202223089622.5U
Authority: CN
Inventors: 王帮好
Original assignee: Wuxi Haobang Machinery Manufacturing Co ltd
Current assignee: Wuxi Haobang Machinery Manufacturing Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-06-13
Anticipated expiration: 2032-11-21

Abstract

The utility model provides a PP board coextrusion production line, first extruder and second extruder are connected with first melt pump and second melt pump respectively, the delivery outlet of first melt pump and second melt pump is connected through the mould distributor, mould distributor output connection is provided with extrusion tooling, extrusion tooling output is provided with the five-roller calender, five-roller calender top is provided with the tectorial membrane device, five-roller calender output is connected with the cooling transfer chain, the other end of cooling transfer chain is provided with the tractor, be provided with the two-roller calender on the cooling transfer chain, the tractor output is provided with the plate shearing machine, plate shearing machine one end is provided with pile up neatly manipulator, five-roller calender department is provided with the side cut device, extrusion tooling top is provided with smoke ventilator device. The production of PP board has been realized to this device, and the product yields that produces through this production line is good, and degree of automation is high, has reduced workman's intensity of labour, greatly reduced cost in business.

Description

PP board coextrusion production line

Technical Field

The utility model relates to the field of PP plates, in particular to a PP plate co-extrusion production line.

Background

At present, the production process flow commonly adopted in domestic PP plate production lines is as follows: host machine-mould-three-roller calender-slow cooling frame-tractor-trimming-transverse cutting-conveying belt-lifter. In addition, the condition of low extrusion quantity, poor plasticizing condition and unstable output often occurs in the production process from the host machine to the die, and in addition, the condition that the produced pp plate is not subjected to secondary compaction to cause bending and curling is easily generated only by adopting a three-roller calender.

Disclosure of Invention

In order to realize the production of full-automatic PP plates and solve the problems of low extrusion quantity, poor plasticizing condition and unstable output of the PP plates due to buckling deformation, the utility model adopts the following technical scheme:

the utility model provides a PP board coextrusion production line, including first extruder and second extruder, first extruder and second extruder are connected with first melt pump and second melt pump respectively, the delivery port of first melt pump and second melt pump is connected through the mould distributor, mould distributor output connection is provided with extrusion die, extrusion die output is provided with the five-roller calender, five-roller calender top is provided with the tectorial membrane device, five-roller calender output is connected with the cooling transfer chain, the other end of cooling transfer chain is provided with the tractor, be provided with the two-roller calender on the cooling transfer chain, the tractor output is provided with the plate shearing machine, plate shearing machine one end is provided with pile up neatly manipulator, five-roller calender department is provided with side cut device, the extrusion die top is provided with smoke ventilator device.

Specifically, the first extruder and the second extruder are both provided with feeding devices.

Specifically, the first extruder and the second extruder are both single screw extruders.

Specifically, the die distributor is a multilayer die distributor, the first melt pump and the second melt pump are respectively connected with the die distributor through connecting pipelines, and temperature sensors are installed in the connecting pipelines.

Specifically, the cooling conveying lines are provided with axial-flow fan cooling devices in a staggered mode, and the axial-flow fan cooling devices are located above and below the cooling conveying lines.

Further, the first melt pump delivers a greater flow rate than the second melt pump.

Specifically, the trimming device is obliquely arranged on the cooling conveying line. The side cut device slope sets up, can carry out vertical cutting to the PP board, great improvement cutting speed and effect.

In summary, the utility model has the following advantages: the production line realizes the production of full-automatic PP plates, and has the advantages of high yield, low energy consumption and labor conservation. The whole line process technology is advanced, the production speed is high, the extruder adopts a high-efficiency energy-saving extruder, the extrusion quantity is high, the plasticization is good, and the output is stable. The temperature sensor is arranged in the connecting pipeline, the temperature is controllable, and the plasticizing process, the thickness and the flatness of the plate can be controlled. The whole production line comprises a five-roller calender and a two-roller calender, so that the pp plate is ensured not to warp, and the flatness meets the qualified requirement of the product.

Drawings

FIG. 1 is a schematic view of a PP sheet coextrusion line;

FIG. 2 is a top view of a PP sheet co-extrusion line;

FIG. 3 is an enlarged view of a portion of the structure of FIG. 2A;

reference numerals: 1 an extruder; 101 a first extruder; 102 a second extruder; 2a melt pump; 201 a first melt pump; 202 a second melt pump; 203 a die dispenser; 204 connecting a pipeline; 3, extruding a die; 4, a smoke exhausting device; a 5 five-roller calender; 6, coating a film device; 7, a trimming device; 8, a two-roller calender; 9, a cooling fan; 10 cooling the conveying line; 11 a tractor; 12 a transition bracket; 13 plate shearing machine; 14 stacking manipulators.

Detailed Description

The utility model is further described below with reference to fig. 1 to 3.

The utility model provides a PP board coextrusion production line, includes first extruder 101 and second extruder 102, all is provided with feeding device on first extruder 101 and the second extruder 102, and feeding device can make the raw materials smoothly get into in two extruders. The output ends of the first extruder 101 and the second extruder 102 are respectively connected with a first melt pump 201 and a second melt pump 202, and the conveying flow rate of the first melt pump 201 is larger than that of the second melt pump 202. The output ports of the first melt pump 201 and the second melt pump 202 are respectively connected with the input end of the mold distributor 203 through a connecting pipeline 204, wherein the mold distributor 203 is a multi-layer mold distributor 203, and a temperature sensor is installed in the connecting pipeline 204. A temperature sensor is installed in the connecting pipeline 204, the temperature can be controlled, and the plasticizing process, the thickness and the flatness of the plate can be controlled. The extrusion die 3 is connected to the die distributor 203 output, and the extrusion die 3 output is provided with five-roller calender 5, and five-roller calender 5 top is provided with tectorial membrane device 6, goes up tectorial membrane device 6 and can realize carrying out online tectorial color film and wearing layer to the PP panel that forms after the calendering, and five-roller calender 5 output is connected with the cooling transfer chain, and the other end of cooling transfer chain is provided with tractor 11, is provided with two-roller calender 8 on the cooling transfer chain, and the embossing is carried out to the PP panel back to two-roller calender 8. The tractor 11 output is provided with plate shearing machine 13, and plate shearing machine 13 one end is provided with pile up neatly manipulator 14, and side cut device 7 slope sets up on the cooling conveying line, can cut out the limit to the panel that covers good double-film through setting up side cut device 7 and handle, and side cut device 7 slope sets up, can carry out vertical cutting to the PP board, great improvement cutting speed and effect. Above the extrusion die 3 is arranged a smoke extraction device 4, and the smoke extraction device 4 is used for removing harmful smoke generated by the die and the product in a high temperature state. Wherein, the cooling conveying line is provided with an axial flow fan cooling device in a staggered way, and the axial flow fan cooling device is positioned above and below the cooling conveying line. The PP plate surface is cooled by an axial flow fan arranged on the cooling conveying line.

The production flow of the production line is as follows: the calcium powder filling master batch is pumped into the hopper of the first extrusion main machine through the drying and feeding system, the PP powder is pumped into the hopper of the second extrusion main machine through the drying and feeding system, and the two raw materials are fully plasticized in the first extruder 101 and the second extruder 102 through heating, so that a viscous polymer melt is formed. Then, the melt flows into the die distributor 203 through the first melt pump 201 and the second melt pump 202 respectively, and the die distributor 203 is connected with the extrusion die 3, wherein the melt pump mainly has the functions of pressurizing and stabilizing the high-temperature melt from the extruder, and then, keeping the melt flow to be accurately and stably fed into the extrusion die 3. The die dispenser 203 and the extrusion die 3 mainly function to layer the article. Directly above the extrusion die 3 is a fume extractor device which acts to remove the harmful fumes generated by the die and the product at high temperature. And a five-roller calender 5 is connected to the discharge port of the extrusion die 3, the layered soft board is sent to the five-roller calender 5 for thickness determination, and the PP board is formed after the soft board is calendered by the five-roller calender 5. The five-roller calender 5 is provided with a four-station upper film coating device 6, so that on-line color film coating and wear-resistant layer coating can be realized on the PP plate formed after calendering. The edge cutting device 7 is located on the cooling bracket 10, can cut edges of the plate covered with the double films, the trimmed PP floor enters the cooling bracket 10, the plate surface is cooled by an axial flow fan installed on the cooling bracket 10, and then the plate surface enters the two-roller calender 8 to emboss the back surface of the PP plate. The processed PP floor is pulled to the plate shearing machine 13 through a group of traction, the plate shearing machine 13 can cut the PP floor into various different sizes, and the cut PP floor is placed on a pre-prepared tray through the stacking manipulator 14. The product produced by the production line has good yield and high automation degree, reduces the labor intensity of workers and greatly reduces the enterprise cost.

The utility model has the following advantages: the production line adopts the function of co-extrusion of two extruders, realizes the production of full-automatic PP plates, and has the advantages of high yield, low energy consumption and labor conservation. The whole line process technology is advanced, the production speed is high, the extruder adopts a high-efficiency energy-saving extruder, the extrusion quantity is high, the plasticization is good, and the output is stable. The temperature sensor is arranged in the connecting pipeline, the temperature is controllable, and the plasticizing process, the thickness and the flatness of the plate can be controlled. The whole production line comprises a five-roller calender and a two-roller calender, so that the pp plate is ensured not to warp, and the flatness meets the qualified requirement of the product.

It is to be understood that the foregoing detailed description of the utility model is merely illustrative of the utility model and is not limited to the embodiments of the utility model. It will be understood by those of ordinary skill in the art that the present utility model may be modified or substituted for elements thereof to achieve the same technical effects; as long as the use requirement is met, the utility model is within the protection scope of the utility model.

Claims

1. The utility model provides a PP board coextrusion production line, its characterized in that, includes first extruder and second extruder, first extruder with the second extruder is connected with first melt pump and second melt pump respectively, first melt pump with the delivery outlet of second melt pump is connected through the mould distributor, mould distributor output connection is provided with extrusion die, extrusion die output is provided with the five-roller calendar, five-roller calendar top is provided with the tectorial membrane device, five-roller calendar output is connected with the cooling transfer chain, the other end of cooling transfer chain is provided with the tractor, be provided with the two-roller calendar on the cooling transfer chain, the tractor output is provided with the plate shearing machine, plate shearing machine one end is provided with the pile up neatly manipulator, five-roller calendar department is provided with the side cut device, extrusion die top is provided with smoke ventilator device.

2. The PP plate coextrusion line according to claim 1, wherein the first extruder and the second extruder are each provided with feeding means.

3. The PP plate coextrusion line according to claim 1, wherein the first extruder and the second extruder are single screw extruders.

4. The PP plate coextrusion line according to claim 1, wherein the die distributor is a multi-layer die distributor, the first melt pump and the second melt pump are connected to the die distributor through connecting pipes, respectively, and temperature sensors are installed in the connecting pipes.

5. The PP plate coextrusion production line according to claim 1, wherein the cooling conveyor lines are provided with axial flow fan cooling devices in a staggered manner, and the axial flow fan cooling devices are located above and below the cooling conveyor lines.

6. The PP plate coextrusion line according to claim 4, wherein the first melt pump delivers a greater flow rate than the second melt pump.

7. The PP plate coextrusion line according to claim 1, wherein the trimming means is arranged obliquely on the cooling conveyor line.