CN107866980A - PP Co-extrusion Foam Thick Board Extrusion Line - Google Patents

Abstract

The invention provides a PP co-extrusion foaming thick plate extrusion production line which comprises a feeding unit, a molding unit, a heat treatment unit, a cooling unit and a finished product collecting unit, wherein the feeding unit is used for feeding a material to be molded; the molding unit comprises a rack, a single-screw extruder, a molding device and a three-roller calender, the molding device comprises a screen changer, a metering pump, a distributor and a mold which are sequentially arranged from right to left, the heat treatment unit comprises a cooling roller set, a leveling roller set and a tempering device, the cooling unit comprises a first cooling bracket, a first tractor and a second cooling bracket, and the finished product collection unit comprises an upper film covering device, a lower film covering device, a second tractor, a longitudinal cutting device, a transverse cutting device, a belt conveyor and a mechanical arm.

Description

PP Co-extrusion Foam Thick Board Extrusion Line

technical field

The invention belongs to the field of plastic extrusion machinery, and in particular relates to a PP co-extruded foamed thick plate extrusion production line.

Background technique

At present, there is no production line dedicated to the production of PP co-extruded foamed thick boards on the market.

Contents of the invention

In order to solve the disadvantages of the above-mentioned prior art, the object of the present invention is to provide a PP co-extruded foamed thick board extrusion line to overcome the defects in the prior art.

In order to achieve the above object, the present invention provides a PP co-extruded foamed thick board extrusion production line, the PP co-extruded foamed thick board extrusion production line includes a feeding unit, a molding unit, heat treatment unit, cooling unit and finished product collection unit; the feeding unit includes a mixer for mixing materials, a screw feeder for feeding, a dryer and a vacuum feeder for drying materials, for A weighing-type metering feeding system for accurately providing materials, and a hopper for screening materials. The lower end of the mixer is connected to the feeding end of the screw feeder, and the discharge end of the screw feeder It is connected with the upper end of the dryer, the lower end of the dryer is connected with the upper end of the weighing type metering feeding system, and the upper end of the weighing type metering feeding system is also connected with a The vacuum feeding machine, the lower end of the weighing type metering feeding system is connected to the upper end of the hopper; the molding unit includes a frame, a single-screw extruder for mixing plastics, and a Forming forming device and three-roll calender for thick plate calendering, the forming device includes a screen changer, a metering pump, a distributor and a mold arranged in sequence from right to left, and the single-screw extruder is set in On the frame, the single-screw extruder is provided with a screw for conveying, compacting, melting, stirring and pressing the plastic, and the bottom of the single-screw extruder is provided with a machine for heating the plastic. A barrel heating ring, a driving device for driving the screw is provided at the lower right of the single-screw extruder, a transmission device is provided between the screw and the driving device, and the left end of the single-screw extruder is connected to the The right end of the molding device is connected, the three-roll calender is arranged on the left side of the molding device, and the right end of the single-screw extruder is arranged at the lower end of the hopper of the feeding unit; The heat treatment unit includes a set of cooling rolls for cooling the thick plate, a set of leveling rolls for leveling the plate and a tempering device for tempering, the set of leveling rolls is arranged on the left side of the set of cooling rolls , the tempering device is arranged on the left side of the leveling roll group, and the right end of the cooling roll group is connected with the bottom of the three-roll calender of the molding unit; the cooling unit includes a The first cooling carriage for slab cooling, the first tractor for slab traveling and the second cooling carriage for slab cooling, the right end of the first tractor is connected to the first cooling carriage The left end is connected, the right end of the second cooling bracket is connected with the left end of the first pulling machine, the right end of the first cooling bracket is connected with the left end of the tempering device of the heat treatment unit; the finished product The collection unit includes upper and lower laminating devices for thick plate lamination, the second tractor for thick plate travel, slitting device for cutting edge of thick plate waste, cross cutting device for thick plate cutting and forming, The belt conveyor for conveying finished products and the manipulator for grabbing finished products, the right end of the second tractor is connected with the left end of the upper and lower laminating devices, the right end of the slitting device is connected with the second tractor The left end is connected, the right end of the cross-cutting device is connected with the left end of the longitudinal cutting device, the right end of the belt conveyor is connected with the cross-cutting device The left end is connected, the manipulator is arranged above the belt conveyor, and the right end of the upper and lower film coating devices is arranged at the left end of the second cooling bracket of the cooling unit.

As a further description of the PP co-extruded foamed thick board extrusion line of the present invention, preferably, one side of the thick board extrusion line is provided with a wire slot for connecting to an external power supply, water source, and air source, so One side of the trunking is provided with a control electric cabinet for production line control and a dust suction device for dust removal.

As a further description of the PP co-extruded foamed thick board extrusion line of the present invention, preferably, one side of the three-roll calender is provided with a three-roll roll temperature control system for temperature control.

As a further description of the PP co-extruded foamed thick board extrusion line of the present invention, preferably, a cooling roll temperature control system for temperature control is provided on one side of the cooling roll group.

As a further description of the PP co-extruded foamed slab extrusion line of the present invention, preferably, one side of the single-screw extruder is provided with an extrusion operation cabinet for extruder operation.

As a further description of the PP co-extruded foamed thick board extrusion line of the present invention, preferably, a cross-cutting operation cabinet for cross-cutting operation is provided on one side of the cross-cutting device.

As a further description of the PP co-extruded foamed thick board extrusion line of the present invention, preferably, one side of the manipulator is provided with a hydraulic lifting platform for lifting and lowering the manipulator.

As a further description of the PP co-extruded foamed thick board extrusion line of the present invention, preferably, the three-roll calender is a vertical calender.

As a further description of the PP co-extruded foamed thick board extrusion line of the present invention, preferably, the bottom of the single-screw extruder is also provided with a cooling fan for cooling the barrel temperature.

It can be seen that the raw materials of the present invention are mixed by the mixer, sent to the drier for drying by the screw feeder, then sent to the weighing type metering feeding system by the vacuum feeder, then enter the hopper, and then from the The hopper enters the screw, and is plasticized by the screw specially designed for PP material for foaming thick plates, filtered by the screen changer, metered and stabilized by the metering pump, and the size is reasonably distributed by the distributor, and then enters the mold for forming. After coming out, it is cooled and formed by three rolls, and the middle roll uses far infrared to heat the plate. After the three rolls, the plate is cooled by the cooling roll group, and then the plate is flattened by the flattening roll group, and then enters the tempering furnace to cool the plate. Relieve the stress, then cool it through the cooling bracket, pull it through the primary tractor, and then cool it through the cooling bracket. The device cuts according to the requirements to obtain the required products, and then enters the belt conveyor, and uses the manipulator to move the plates on the belt conveyor to the designated position. The invention can produce PP co-extruded foam thick board, meets the requirements of the product in actual production and use, and fills up the vacancy in the market.

Description of drawings

Fig. 1 is the structural representation of the PP co-extrusion foaming slab extrusion production line of the present invention;

Fig. 2 is a top view of the PP co-extruded foamed slab extrusion production line of the present invention.

The reference signs are explained as follows:

Mixer 1, screw feeder 2, dryer 3, vacuum feeder 4, weighing type metering feeding system 5, frame J, single screw extruder 6, extrusion operation cabinet 61, barrel heating Ring 62, forming device 7, three-roll calender 8, three-roll roll temperature control system 81, cooling roll group 9, cooling roll temperature control system 91, leveling roll group 10, tempering device 11, first cooling tray Frame 12, first tractor 13, second cooling bracket 14, upper and lower laminating device 15, second tractor 16, slitting device 17, cross-cutting device 18, cross-cutting operation cabinet 181, belt conveyor 19, manipulator 20. Wire trunking 21, control electric cabinet 22, dust collection device 23, hydraulic lifting platform 24.

Detailed ways

In order to enable the examiner to further understand the structure, features and other purposes of the present invention, the attached preferred embodiments are attached with accompanying drawings in detail as follows. The embodiments illustrated in the accompanying drawings are only used to illustrate the technical solution of the present invention , not to limit the present invention. (apparatus, equipment and elements used in the present invention are routinely used in this field)

First of all, please refer to Fig. 1, Fig. 1 is a schematic structural diagram of a PP co-extruded foamed thick board extrusion production line of the present invention. As shown in Figure 1, a PP co-extruded foamed thick board extrusion production line of the present invention, the PP co-extruded foamed thick board extrusion production line includes a feeding unit, a molding unit, Heat treatment unit, cooling unit and finished product collection unit.

The feeding unit includes a mixer 1 for mixing materials, a screw feeder 2 for feeding, a dryer 3 for drying materials, and a vacuum feeder 4, which are used to accurately provide materials for weighing Formula metering feeding system 5 and a hopper for screening materials, the lower end of the mixer 1 is connected with the feed end of the screw feeder 2, and the discharge end of the screw feeder 2 is connected with the upper end of the dryer 3, The lower end of drier 3 is connected with the upper end of gravimetric metering feeding system 5, and the upper end of gravimetric metering feeding system 5 is also connected with vacuum feeder 4 (here, vacuum feeder 4 for feeding from dryer) The model is XQ-15-2-3), the lower end of the weighing type metering feeding system 5 is connected with the upper end of the hopper, so that the materials are first mixed through the mixer 1, and then transported to the Dried in the dryer 3 to reduce the internal stress of the final PLA plate, then transported to the weighing type metering feeding system 5, and then enters the hopper from the weighing type metering feeding system 5.

The molding unit includes a frame J, a single-screw extruder 6 for stirring plastic, a forming device 7 for forming a thick plate, and a three-roll calender 8 for rolling a thick plate. The forming device 7 includes Screen changers, metering pumps, distributors and molds are arranged in sequence from right to left. The single-screw extruder 6 is arranged on the frame J, and the single-screw extruder 6 is equipped with devices for conveying, compacting, and The screw for melting, stirring and applying pressure, the bottom of the single-screw extruder 6 is provided with a barrel heating ring 62 for heating plastic, and the lower right of the single-screw extruder 6 is provided with a driving device for driving the screw, and the screw A transmission device is provided between the driving device to reduce the vibration of the screw during operation. The left end of the single-screw extruder 6 is connected to the right end of the molding device 7, and the three-roll calender 8 is arranged on the side of the molding device 7. On the left side, the right end of the single-screw extruder 6 is set at the lower end of the hopper of the feeding unit, so that the material enters the single-screw extruder 6 from the hopper, and is filtered through the screen changer The impurities are then accurately metered by the metering pump, and then reasonably distributed by the distributor, and then enter the mold for forming, and after forming, enter the three-roll calender 8 for calendering.

The heat treatment unit includes a cooling roll set 9 for cooling the thick plate, a leveling roll set 10 for leveling the thick plate, and a tempering device 11 for tempering. The leveling roll set 10 is arranged on the cooling roll set 9 The tempering device 11 is arranged on the left side of the leveling roller group 10, and the right end of the cooling roller group 9 is connected with the bottom of the three-roll calender 8 of the molding unit, so that the rolled plate is cooled The roller group 90 is cooled, and then the plate is pressed by the leveling roller group 10, and the internal stress of the plate is removed by tempering after the plate is flattened.

The cooling unit includes a first cooling bracket 12 for cooling the thick plate, a first tractor 13 for traveling the thick plate and a second cooling bracket 14 for cooling the thick plate, the right end of the first tractor 13 It is connected with the left end of the first cooling bracket 12, the right end of the second cooling bracket 14 is connected with the left end of the first pulling machine 13, and the right end of the first cooling bracket 12 is connected with the left end of the tempering device 11 of the heat treatment unit , to pull the heat-treated plate over and cool it down.

The finished product collection unit includes an upper and lower film coating device 15 for thick plate coating, a second tractor 16 for thick plate travel, a slitting device 17 for thick plate waste trimming, and a thick plate cutting and forming device. The cross-cutting device 18, the belt conveyor 19 for finished product delivery and the manipulator 20 for grabbing the finished product, the right end of the second tractor 16 is connected with the left end of the upper and lower laminating device 15, and the right end of the slitting device 17 is connected with the first The left end of two tractors 16 is connected, the right end of crosscutting device 18 is connected with the left end of longitudinal cutting device 17, the right end of belt conveyor 19 is connected with the left end of crosscutting device 18, and manipulator 20 is arranged on the top of belt conveyor 19, up and down The right end of the coating device 15 is arranged on the left end of the second cooling bracket 14 of the cooling unit, so as to coat the surface of the above-mentioned cooled plate, then pull it over and cut the waste edge, and then press the plate after cutting the waste edge The required specifications are cut and collected.

Next, please refer to FIG. 2 , which is a top view of the PP co-extruded foamed thick board extrusion production line of the present invention. As shown in Figure 2, one side of the thick plate extrusion production line is provided with a wire slot 21 for connecting to an external power supply, water source, and air source, and one side of the wire slot 21 is provided with a control cabinet 22 for production line control and Dust suction device 23 for dust removal; three-roll calender 8 (the model of three-roll calender 8 here is SG-00-00.) One side is provided with three-roll roll temperature control system 81 for controlling temperature so that the temperature of the three rolls will not affect the calendering of the sheet; one side of the cooling roll group 9 is provided with a cooling roll temperature control system 91 for temperature control to provide a suitable sheet cooling temperature; the single screw extruder 6 One side is provided with the extrusion operation cabinet 61 that is used for extruder operation, is convenient to the process of extruding plastics is adjusted; One side of crosscutting device 18 is provided with the crosscutting operation cabinet 181 that is used for crosscutting operation, to cut out Finished products that meet the requirements; one side of the manipulator 20 is provided with a hydraulic lifting platform 24 for lifting and lowering the manipulator 20, so as to facilitate the grabbing of the finished product.

In addition, the bottom of the single-screw extruder 6 is also provided with a cooling fan for cooling the barrel temperature.

The production line process of the present invention: the raw materials are mixed by the mixer 1, sent to the dryer 3 by the screw feeder 2 for drying, then sent to the weighing type metering feeding system 5 by the vacuum feeder 4, and then enter the The hopper, then enters the single-screw extruder 6 from the hopper, plasticizes through the screw 61, passes through the filter of the screen changer, the metering and pressure stabilization of the metering pump, the size of the machine is reasonably distributed through the distributor, and then enters the mold for forming. After the mold comes out After the three-roll calender 8 is cooled and formed, the middle roll uses far infrared to heat the plate. After the three-roll calender 8, the plate is cooled by the cooling roll group 9, and then the plate is stretched by the leveling roll group 10. Then enter the tempering furnace 11 to relieve the stress on the plate, then cool it through the first cooling bracket 12, pull it through the first tractor 13, and then cool it through the second cooling bracket 14, and then coat the plate with the upper and lower coating devices 15 , is pulled by the second tractor 16, the slitting device 17 cuts the waste edge, and the cross-cutting device 18 cuts according to the requirements to obtain the required product, and then enters the belt conveyor 19, and utilizes the manipulator 20 to remove the waste on the belt conveyor 19. The sheet moves to the specified position.

Therefore, the present invention can produce PP co-extruded foam thick board, meets the requirement of this product in actual production and use, and fills up the vacancy in the market.

It should be declared that the above summary of the invention and specific implementation methods are intended to prove the practical application of the technical solutions provided by the present invention, and should not be interpreted as limiting the protection scope of the present invention. Those skilled in the art may make various modifications, equivalent replacements or improvements within the spirit and principle of the present invention. The protection scope of the present invention shall be determined by the appended claims.

Claims (9)

1. A PP co-extruded foamed thick plate extrusion production line, said PP co-extruded foamed thick plate extruded production line includes a feeding unit, a molding unit, a heat treatment unit, a cooling unit and a finished product that are sequentially arranged from right to left A collection unit; characterized in that, The feeding unit includes a mixer (1) for mixing materials, a screw feeder (2) for feeding, a dryer (3) for drying materials and a vacuum feeder (4), A weighing-type metering feeding system (5) for accurately providing materials, and a hopper for screening materials. The lower end of the mixer (1) is connected to the feeding end of the screw feeder (2), and the screw feeder The discharge end of the dryer (2) is connected to the upper end of the dryer (3), and the lower end of the dryer (3) is connected to the upper end of the weighing type metering feeding system (5). The weighing type metering feeding system (5) The upper end of is also connected with the vacuum feeder (4) that is used for feeding from dryer, and the lower end of weighing type metering feeding system (5) is connected with the upper end of described hopper; The molding unit includes a frame (J), a single-screw extruder (6) for mixing plastics, a forming device (7) for forming thick plates, and a three-roll calender for rolling thick plates (8), the molding device (7) includes a screen changer, a metering pump, a distributor and a mold arranged in sequence from right to left, and the single-screw extruder (6) is arranged on the frame (J), and the single-screw extruder The extruder (6) is provided with a screw for conveying, compacting, melting, stirring and pressing the plastic, and the bottom of the single-screw extruder (6) is provided with a barrel heating ring (62) for heating the plastic. The bottom right of the screw extruder (6) is provided with a driving device for driving the screw, and a transmission device is arranged between the screw and the driving device, and the left end of the single screw extruder (6) is connected to the forming device (7) The right end of the three-roller calender (8) is arranged on the left side of the molding device (7), and the right end of the single-screw extruder (6) is arranged on the lower end of the hopper of the feeding unit; The heat treatment unit includes a group of cooling rolls (9) for cooling the thick plate, a group of leveling rolls (10) for leveling the thick plate and a tempering device (11) for tempering, the group of leveling rolls ( 10) It is arranged on the left side of the cooling roller group (9), the tempering device (11) is arranged on the left side of the leveling roller group (10), and the right end of the cooling roller group (9) is connected with the three rollers of the molding unit The bottom of the calender (8) is connected; The cooling unit includes a first cooling bracket (12) for thick plate cooling, a first tractor (13) for thick plate travel and a second cooling bracket (14) for thick plate cooling, the first The right end of a tractor (13) is connected with the left end of the first cooling bracket (12), the right end of the second cooling bracket (14) is connected with the left end of the first tractor (13), and the first cooling bracket (12 ) is connected to the left end of the tempering device (11) of the heat treatment unit; The finished product collection unit includes an upper and lower laminating device (15) for thick plate lamination, a second tractor (16) for thick plate travel, a slitting device (17) for thick plate waste trimming, The cross-cutting device (18) for thick plate cutting and forming, the belt conveyor (19) for finished product delivery and the manipulator (20) for grabbing finished products, the right end of the second tractor (16) and the upper and lower lamination The left end of the device (15) is connected, the right end of the slitting device (17) is connected with the left end of the second tractor (16), the right end of the cross cutting device (18) is connected with the left end of the slitting device (17), and the belt conveyor The right end of (19) is connected with the left end of cross-cutting device (18), and manipulator (20) is arranged on the top of belt conveyor (19), and the right end of upper and lower coating device (15) is arranged on the second cooling of described cooling unit. the left end of the bracket (14). 2. PP co-extrusion foaming thick plate extrusion production line as claimed in claim 1, is characterized in that, one side of described thick plate extrusion production line is provided with and is used for inserting the wire groove of external power supply, water source, gas source ( 21), one side of the trunking (21) is provided with a control electric cabinet (22) for production line control and a dust suction device (23) for dust removal. 3. The PP co-extruded foamed thick board extrusion production line as claimed in claim 1, characterized in that, one side of the three-roll calender (8) is provided with a three-roll roll temperature control system (81) for temperature control . 4. The PP co-extruded foamed slab extrusion line according to claim 1, characterized in that, one side of the cooling roll group (9) is provided with a cooling roll temperature control system (91) for temperature control. 5. The PP co-extruded foamed thick board extrusion production line as claimed in claim 1, characterized in that, one side of the single-screw extruder (6) is provided with an extrusion operation cabinet (61) for extruder operation . 6. The PP co-extruded foamed thick board extrusion line according to claim 1, characterized in that a cross-cutting operation cabinet (181) for cross-cutting operation is provided on one side of the cross-cutting device (18). 7. The PP co-extruded foamed slab extrusion production line according to claim 1, characterized in that, one side of the manipulator (20) is provided with a hydraulic lifting platform (24) for lifting and lowering the manipulator (20). 8. The PP co-extruded foamed thick board extrusion production line according to claim 1, characterized in that the three-roll calender (8) is a vertical calender. 9. The PP co-extruded foamed slab extrusion line according to claim 1, characterized in that, the bottom of the single-screw extruder (6) is also provided with a cooling fan for cooling the temperature of the barrel.