CN209937617U

CN209937617U - EPS sheet production system

Info

Publication number: CN209937617U
Application number: CN201920437852.5U
Authority: CN
Inventors: 李增洪; 周国; 李国梁; 叶建; 李华栋
Original assignee: Foshan Gaoming Aibo Advertising And Decoration Material Co Ltd
Current assignee: Foshan Gaoming Aibo Advertising And Decoration Material Co Ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-01-14
Anticipated expiration: 2029-04-02

Abstract

The utility model provides an EPS sheet production system, which comprises an extruder, a first feeding mechanism and a second feeding mechanism which are respectively used for conveying PS granules and foaming agent to the extruder, a forming die arranged at the output port of the extruder, an air blowing mechanism arranged at the rear of the forming die, and a winding device arranged at the rear of the air blowing mechanism; the forming die is used for extruding EPS materials into EPS sheets in a conical sheet shape, the blowing mechanism is used for enabling the EPS sheets to be shaped into a cylindrical shape and then cut and unfolded along the length direction, and the winding device is used for winding the unfolded EPS sheets. The forming die can enable EPS materials output from the extruder to be extruded in a sheet shape to form EPS sheets.

Description

EPS sheet production system

Technical Field

The utility model relates to a EPS sheet production technical field, in particular to EPS sheet production system.

Background

When a general KT board production system carries out KT board production, PS particles are foamed through an extruder and then extruded into a forming die to be manufactured into a board core, then films (or stickers) are pasted on two surfaces of the board core, and then the finished KT board is obtained after width sizing and edge cutting and fixed length cutting. The process of using PS granule foaming to form the board core can produce a large amount of waste gases, and these waste gases give off can lead to operational environment bad after the workshop, influence workman's physical and mental health, in order to improve the environment in KT board workshop, have a KT board production system at present and adopt two-layer EPS sheet (a sheet of making after PS foaming) thermal compression to make the board core, and the waste gas volume of production is less. Therefore, a production system capable of efficiently producing an EPS sheet is required to provide an EPS sheet.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, an object of the utility model is to provide a EPS sheet production system, can produce EPS sheet and production efficiency is high.

In order to achieve the purpose, the utility model adopts the following technical proposal:

an EPS sheet production system comprises an extruder, a first feeding mechanism and a second feeding mechanism which are respectively used for conveying PS granules and foaming agents to the extruder, a forming die arranged at an output port of the extruder, an air blowing mechanism arranged behind the forming die, and a winding device arranged behind the air blowing mechanism; the forming die is used for extruding EPS materials into EPS sheets in a conical sheet shape, the blowing mechanism is used for enabling the EPS sheets to be shaped into a cylindrical shape and then cut and unfolded along the length direction, and the winding device is used for winding the unfolded EPS sheets.

In the EPS sheet production system, the extruder is a screw extruder, a screw cylinder of the extruder is connected with a hopper for throwing PS granules and an input port for inputting foaming agents, the screw cylinder is also provided with a plurality of heating components, and part of the heating components are arranged between the hopper and the input port.

In the EPS sheet production system, the first feeding mechanism comprises a storage box for storing PS granules and a feeding auger; the lower end of the feeding auger extends into the storage box, and the outlet at the upper end of the feeding auger is aligned with the opening at the upper end of the hopper; the second feeding mechanism comprises a case, a storage tank and a pump, wherein the storage tank is arranged in the case and used for storing foaming agent, and the pump is used for conveying the foaming agent; the second feeding mechanism feeds materials to the input port through the feeding pipe.

In the EPS sheet production system, a filter is arranged at an outlet of the screw cylinder; the filter comprises a shell, a filter screen inserted in the shell and an air cylinder for inserting the filter screen; the front wall and the rear wall of the shell are provided with through holes for EPS materials to pass through, and the filter screen is inserted between the two through holes.

In the EPS sheet production system, the forming die comprises a core sleeve fixedly connected with a filter shell, a cavity extending from front to back is arranged in the core sleeve, and the front end of the cavity is communicated with a through hole of the filter; a mold core is arranged in the cavity, and a flow channel which is gradually reduced from front to back and has an annular cross section is enclosed between the wall surface of the cavity and the mold core; a rear plug is arranged at the rear side of the core sleeve, a conical gap is formed between the front end of the rear plug and the rear end of the core sleeve, and the gap is communicated with the flow channel; and the device also comprises an air blowing mechanism for cooling the EPS sheet.

In the EPS sheet production system, the blowing mechanism comprises a wind ring sleeved at the rear end of the core sleeve and a first blower used for supplying air to the wind ring; the air ring is characterized in that a plurality of air inlets are uniformly formed in the circumferential surface of the air ring along the circumferential direction, an annular air outlet is formed in the rear side surface of the air ring, and the first air blower supplies air to all the air inlets simultaneously through an air conveying pipe.

In the EPS sheet production system, the air blowing mechanism comprises a rack, a second air blower and an electric cabinet which are arranged on the rack, a cylindrical guide cylinder fixed at the top of the electric cabinet, and a cutter arranged at the rear side of the guide cylinder; the front end of the guide cylinder is right opposite to the outlet of the forming die, and the guide cylinder is provided with an air inlet pipe penetrating through the front end and the rear end and a plurality of air return holes communicating the front end and the rear end; the second air blower is connected with the rear end of the air inlet pipe through an air conveying pipe; the cutter is used for cutting the cylindrical EPS sheet from the lower side; the second air blower is electrically connected with the electric cabinet, and the electric cabinet controls the second air blower to work.

In the EPS sheet production system, a disc part is arranged in front of the guide cylinder, and the diameter of the disc part is equal to that of the guide cylinder; the air inlet pipe is arranged on the rear wall of the disc part in a penetrating mode, and a plurality of air return holes are formed in the rear wall of the disc part.

In the EPS sheet production system, an atomizing device is arranged in the electric cabinet and water mist is conveyed to the front of the guide cylinder through a conveying pipe, and the conveying pipe penetrates through an air return hole of the guide cylinder.

In the EPS sheet production system, an atomizer for spraying water mist to the EPS sheets and a blowing device for drying the EPS sheets are arranged in front of the winding device.

Has the advantages that:

the utility model provides a EPS sheet production system extrudes into the EPS sheet with the slice of the shape of a cone face through the extruder after mixing foaming PS aggregate and foamer, and this EPS sheet forms the sheet of cylinder after the design of blast air mechanism, and this sheet is pulled and the rolling by the coiling mechanism after expanding along length direction cutting in blast air mechanism, and whole production process is continuous and degree of automation is high, and production efficiency is high.

Drawings

Fig. 1 is the utility model provides a structural schematic of EPS sheet production system.

Fig. 2 is a top view of the extruder in the EPS sheet production system provided by the present invention.

Fig. 3 is the utility model provides an among the EPS sheet production system, a feed mechanism's schematic structure diagram.

Fig. 4 is a schematic structural diagram of a filter in the EPS sheet production system provided by the present invention.

Fig. 5 is the utility model provides an among the EPS sheet production system, forming die's schematic structure diagram.

Fig. 6 is the utility model provides an among the EPS sheet production system, the schematic structure of mold core.

Fig. 7 is the utility model provides an among the EPS sheet production system, the schematic structure diagram of back end cap.

Fig. 8 is a schematic structural diagram of the rear sleeve body in the EPS sheet production system provided by the present invention.

Fig. 9 is a perspective view of an air blowing mechanism in the EPS sheet production system provided by the present invention.

Fig. 10 is a side view of the blower mechanism in the EPS sheet production system provided by the present invention.

Fig. 11 is a cross-sectional view of a guide cylinder in the EPS sheet production system provided by the present invention.

Detailed Description

The utility model provides a EPS sheet production system, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the attached drawing and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Herein, back means that the front and back are opposite in the direction of material movement, i.e. in the direction a to G in fig. 1.

Referring to fig. 1-11, the present invention provides an EPS sheet production system, which includes an extruder a, a first feeding mechanism B and a second feeding mechanism C for respectively conveying PS pellets and a foaming agent to the extruder, a forming mold D disposed at an output port of the extruder, an air blowing mechanism E disposed behind the forming mold, and a winding device G disposed behind the air blowing mechanism; the forming die is used for extruding EPS materials (namely the EPS materials after PS foaming) into EPS sheets in a conical shape, the blowing mechanism is used for cutting and unfolding the EPS sheets along the length direction after the EPS sheets are shaped into a cylindrical shape, and the winding device is used for winding the unfolded EPS sheets.

When the machine works, PS granules and a foaming agent are respectively sent into an extruder to be foamed through a first feeding mechanism and a second feeding mechanism, an EPS material obtained through foaming is extruded into an EPS sheet material 90 from a forming die in a conical sheet shape under the action of the extruder, the EPS sheet material moves backwards under the traction force of a winding device and is shaped by an air blowing mechanism to form a cylindrical sheet material, and the sheet material is cut and unfolded in the air blowing mechanism along the length direction and then is pulled and wound by the winding device.

The winding device G mainly comprises a tensioning roller set, a winding roller, a cutting tool and a corresponding driving mechanism; wherein the tension roller group can flatten EPS sheet to eliminate bending generated during shaping in the air blowing mechanism.

Specifically, the extruder A is a screw extruder, a screw cylinder 1 of the extruder A is connected with a hopper 1.1 for throwing PS granules and an input port 1.2 for inputting foaming agents, a plurality of heating assemblies 1.3 are further arranged on the screw cylinder, and part of the heating assemblies are arranged between the hopper and the input port.

PS granules are heated and melted after entering the screw cylinder from the hopper 1.1, then are mixed with a foaming agent, and are heated and foamed in the process of backward conveying to form the EPS material. At present, when foaming of the PS material is performed by using an extruder, two extruders are generally used, one extruder is used for melting PS granules, the other extruder is used for mixing the melted PS material with a foaming agent for foaming, a feeding mechanism for conveying the melted PS material is further required to be arranged between the two extruders, the occupied area is large, the structure is complex, and the extruder in the application has a small occupied area and a simple structure compared with the prior art.

Further, as shown in fig. 3, the first feeding mechanism B comprises a storage box 2 for storing PS granules, and a feeding auger 3; the lower end of the feeding auger extends into the storage box, and the outlet at the upper end of the feeding auger is aligned with the opening at the upper end of the hopper; the second feeding mechanism C comprises a case, a storage tank and a pump, wherein the storage tank is arranged in the case and used for storing foaming agent, and the pump is used for conveying the foaming agent; the second feeding mechanism feeds materials to the input port through a feeding pipe 4. The first feeding mechanism and the second feeding mechanism can ensure the continuity and automation of feeding.

In the present embodiment, as shown in fig. 2 and 4, a filter 5 is disposed at the outlet of the screw cylinder 1; the filter comprises a shell 5.1, a filter screen 5.2 inserted in the shell, and a cylinder 5.3 for inserting the filter screen; the front wall and the rear wall of the shell are provided with through holes 5.1a for EPS materials to pass through, and the filter screen is inserted between the two through holes 5.1 a. When the EPS material passes the filter screen, impurity and particulate matter wherein will be filtered, prevent that it from causing the jam in getting into forming die, and can realize the plug of filter screen through the cylinder, conveniently carry out the change of filter screen.

The cylinder 5.3 is fixed on a mounting plate 5.4, the mounting plate is fixedly connected with the shell through a plurality of connecting rods 5.5, the filter screen 5.2 is arranged in a filter screen frame 5.2a, and the filter screen frame is connected with a piston rod of the cylinder 5.3 through screws so as to be assembled and disassembled.

Referring to fig. 5-8, the forming mold D includes a core sleeve 6 fixedly connected to the filter housing 5.1, the core sleeve has a cavity 6.1 extending from front to back, and the front end of the cavity is communicated with the through hole 5.1a of the filter; a mold core 7 is arranged in the cavity, and a flow channel 6.1a which gradually becomes smaller from front to back and has an annular cross section is enclosed between the wall surface of the cavity and the mold core; a rear plug 8 is arranged at the rear side of the core sleeve, a conical gap 9 is formed between the front end of the rear plug and the rear end of the core sleeve, and the gap is communicated with the flow channel; also included is a blowing mechanism 10 for cooling the EPS sheet.

When the EPS material extruding machine works, the EPS material is extruded into a cavity of a core sleeve from the extruder and moves from front to back (moves according to a dotted arrow in figure 5), the EPS material passes through a flow channel between the wall surface of the cavity and a mold core and is extruded in a conical sheet shape from a conical gap, and the extruded material is cooled by air blown out by an air blowing mechanism to form an EPS sheet 90.

Specifically, the blowing mechanism 10 comprises a wind ring 10.1 sleeved at the rear end of the core sleeve 6 and a first blower 10.2 used for supplying air to the wind ring; the periphery of the air ring is uniformly provided with a plurality of air inlets 10.1a along the circumferential direction, the rear side surface of the air ring is provided with an annular air outlet, and the first air blower supplies air to all the air inlets simultaneously through the air conveying pipe. Wind enters the wind ring from each wind inlet along the radial direction and is finally ejected backwards from the wind outlet (the wind moves along the solid line arrow in fig. 5), and the ejected wind is relatively uniform in the circumferential direction, so that the sheet is uniformly cooled.

Further, the cross section of the cavity 6.1 is circular; the mold core 7 comprises a circular mounting part 7.1, a first cylindrical part 7.2, a truncated cone part 7.3 and a second cylindrical part 7.4 from front to back, wherein the circular mounting part is used for being connected and fixed with the core sleeve 6; the installation part is provided with a plurality of through holes 7.2a communicating the front surface and the rear surface, and the rear plug 8 is arranged at the rear end of the second cylindrical part. The mould core is fixed in the cavity through the installation portion, and the EPS material passes through the installation portion from through hole 7.2a, therefore the installation portion does not influence the EPS material and removes in the cavity.

In this embodiment, the rear end of the second cylindrical portion 7.4 is provided with an external thread 7.4a, the center of the rear plug 8 is provided with a mounting hole 8.1 adapted to the second cylindrical portion, the front portion of the mounting hole is a unthreaded hole, and the rear portion of the mounting hole is provided with an internal thread; the rear plug is in threaded connection with the rear end of the second cylindrical portion through the internal thread and is locked by a locking screw 8.2. Here, the rear plug has a threaded bore 8.3 in the radial direction, in which the locking screw 8.2 is arranged. The back end cap of this structure around the position adjustable to realize the regulation of 9 width in clearance, and then the EPS sheet of accessible same forming die come the production different thickness. And the rear plug needs to move forwards and backwards through rotation, and the movement of the degree of freedom is locked by the locking screw, so that the position stability of the rear plug is high.

Here, mold core 7 still include the toper water conservancy diversion portion 7.5 of setting at installation department 7.1 front end, can reduce the removal resistance of EPS material in the cavity, ensure that EPS material removes smoothly.

Specifically, the core sleeve 6 comprises a front sleeve body 6.2 fixedly connected with the extruder, a middle sleeve body 6.3 connected to the rear end of the front sleeve body, and a rear sleeve body 6.4 connected to the rear end of the middle sleeve body; the front sleeve body, the middle sleeve body and the rear sleeve body are respectively provided with a sub-cavity, and the sub-cavities form the cavity 6.1; the rear end face of the front sleeve body and the front end face of the middle sleeve body are provided with mounting grooves, and the mounting parts 7.1 of the mold cores 7 are clamped through the mounting grooves, as shown in fig. 5.

Preferably, the circumferential surface of the rear sleeve body 6.4 is provided with an annular clamping groove 6.4a, and the rear sleeve body is fixed at the rear end of the middle sleeve body 6.3 through two semicircular clamping rings 6.5; one end of the semicircular clamping ring is clamped with the annular clamping groove, and the other end of the semicircular clamping ring is connected with the middle sleeve body through a screw. Here, the semicircular snap ring 6.5 is provided at a rear end with a protrusion 6.5a adapted to the ring slot 6.4a, and the protrusion 6.5a is snapped into the ring slot. The semicircular clamping ring can be assembled and disassembled, so that the size of the flow channel can be changed by replacing the rear sleeve bodies with different inner diameters, and the production requirements of EPS sheets with different thicknesses can be met.

Referring to fig. 9-11, the blower mechanism E includes a frame 11, a second blower 12 and an electric cabinet 13 disposed on the frame, a cylindrical guide cylinder 14 fixed on the top of the electric cabinet, and a cutter 15 disposed on the rear side of the guide cylinder; the front end of the guide cylinder is right opposite to the outlet of the forming die D, and the guide cylinder is provided with an air inlet pipe 14.1 penetrating through the front end and the rear end and a plurality of air return holes 14.2 communicating the front end and the rear end; the second blower is connected with the rear end of the air inlet pipe through a gas transmission pipe 12.1; the cutter is used for cutting the cylindrical EPS sheet from the lower side; the second air blower is electrically connected with the electric cabinet, and the electric cabinet controls the second air blower to work.

Referring to fig. 11, the operation principle of the blower mechanism E is: blowing air from back to front in the air inlet pipe (along the direction of a curved arrow in fig. 11) to blow up the conical EPS sheets, enabling air flow to flow out from the air return holes after impacting the EPS sheets to ensure that wind energy continuously enters, and then enabling the expanded EPS sheets to move backwards along the peripheral surface of the guide cylinder under the traction of the winding machine, so that the expanded EPS sheets are cooled and shaped into cylindrical sheets, and when the cylindrical sheets move to the position of the cutter, the cylindrical sheets are cut and unfolded from the lower side by the cutter.

Wherein, a controller, a control button and a corresponding control circuit are arranged in the electric cabinet 13. Preferably, a frequency converter is further arranged in the electric cabinet 13 to adjust the power of the second blower 12, so as to meet the production requirements of sheets with different thicknesses.

Specifically, the guide cylinder 14 consists of a front wall, a rear wall and a circumferential wall, the air inlet pipe 14.1 penetrates through the front wall and the rear wall, the rear part of the air inlet pipe is fixed at the top of the electric cabinet 13, and the front wall and the rear wall are provided with a plurality of air return holes 14.2. Because the guide cylinder is of a hollow structure and is light in weight, the guide cylinder can be arranged at the top of the electric cabinet in a cantilever manner without additional support, so that the sheet forming process is not hindered.

Furthermore, a disk part 14.3 is arranged in front of the guide cylinder 14, and the diameter of the disk part is equal to that of the guide cylinder; the disk part comprises a rear wall and a peripheral wall, the air inlet pipe 14.1 penetrates through the rear wall of the disk part, and a plurality of air return holes 14.2 are formed in the rear wall of the disk part. When only the guide cylinder is arranged, part of air flow does not flow away from the air return hole but flows away from the outer side of the circumferential wall, so that the sheets cannot move along the wall, the shape of the sheets is influenced, and after the disk part is arranged, the part of air flow can return to the air return hole again from a gap between the guide cylinder and the disk part, so that the air flow flowing away from the outer side is reduced, and the product quality is improved.

In this embodiment, an atomization device is disposed in the electric cabinet 13 and delivers water mist to the front of the guide cylinder through a delivery pipe 16, which is inserted into the air return hole 14.2 of the guide cylinder. The EPS sheet material coming out of the forming die is high in temperature, so that the guide cylinder is heated to be high in temperature, the sheet material is not beneficial to cooling and shaping, and the guide cylinder and the sheet material are cooled by conveying water mist forwards, so that the shaping of the sheet material is promoted; on the other hand, the friction between the sheet and the guide cylinder can be reduced, and the product quality is improved; in addition, static electricity can be removed.

In addition, the blowing mechanism E further includes a guide rail 17 disposed along the moving direction of the EPS sheet 90, and the frame 11 is movably disposed on the guide rail by a roller 11.1 and locked on the guide rail by a locking screw 11.2. The sheet material that corresponds different thickness, it is different from the distance demand between forming die to the guide cylinder, and here, the position of frame is adjustable, the production demand of adaptable different thickness sheet material, and the suitability is stronger.

Referring to fig. 1, an atomizer H for spraying water mist to the EPS sheet 90 and a blowing device I for drying the EPS sheet are disposed in front of the winding device G. The static electricity can be further removed by spraying water mist, and the blowing device, which is preferably a blowing device that blows hot air, has a function of drying the moisture stuck on the EPS sheet.

It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.

Claims

1. The EPS sheet production system is characterized by comprising an extruder, a first feeding mechanism and a second feeding mechanism which are respectively used for conveying PS granules and foaming agents to the extruder, a forming die arranged at an output port of the extruder, an air blowing mechanism arranged behind the forming die, and a winding device arranged behind the air blowing mechanism; the forming die is used for extruding EPS materials into EPS sheets in a conical sheet shape, the blowing mechanism is used for enabling the EPS sheets to be shaped into a cylindrical shape and then cut and unfolded along the length direction, and the winding device is used for winding the unfolded EPS sheets.

2. The EPS sheet production system according to claim 1, wherein the extruder is a screw extruder, a hopper for feeding PS pellets and an input port for inputting a foaming agent are connected to a screw cylinder of the screw extruder, and a plurality of heating units are provided on the screw cylinder, and part of the heating units are provided between the hopper and the input port.

3. The EPS sheet production system according to claim 2, wherein the first feeding mechanism comprises a storage bin for storing PS pellets, and a feeding auger; the lower end of the feeding auger extends into the storage box, and the outlet at the upper end of the feeding auger is aligned with the opening at the upper end of the hopper; the second feeding mechanism comprises a case, a storage tank and a pump, wherein the storage tank is arranged in the case and used for storing foaming agent, and the pump is used for conveying the foaming agent; the second feeding mechanism feeds materials to the input port through the feeding pipe.

4. The EPS sheet production system according to claim 2, wherein a filter is provided at an outlet of the screw cylinder; the filter comprises a shell, a filter screen inserted in the shell and an air cylinder for inserting the filter screen; the front wall and the rear wall of the shell are provided with through holes for EPS materials to pass through, and the filter screen is inserted between the two through holes.

5. The EPS sheet production system of claim 4, wherein the forming die comprises a core sleeve fixedly connected with the filter shell, the core sleeve is internally provided with a cavity extending from front to back, and the front end of the cavity is communicated with the through hole of the filter; a mold core is arranged in the cavity, and a flow channel which is gradually reduced from front to back and has an annular cross section is enclosed between the wall surface of the cavity and the mold core; a rear plug is arranged at the rear side of the core sleeve, a conical gap is formed between the front end of the rear plug and the rear end of the core sleeve, and the gap is communicated with the flow channel; and the device also comprises an air blowing mechanism for cooling the EPS sheet.

6. The EPS sheet production system of claim 5, wherein the blowing mechanism comprises a wind ring sleeved at the rear end of the core sleeve, and a first blower for blowing air to the wind ring; the air ring is characterized in that a plurality of air inlets are uniformly formed in the circumferential surface of the air ring along the circumferential direction, an annular air outlet is formed in the rear side surface of the air ring, and the first air blower supplies air to all the air inlets simultaneously through an air conveying pipe.

7. The EPS sheet production system of claim 1, wherein the blower mechanism comprises a frame, a second blower and an electric cabinet which are arranged on the frame, a cylindrical guide cylinder fixed on the top of the electric cabinet, and a cutter arranged on the rear side of the guide cylinder; the front end of the guide cylinder is right opposite to the outlet of the forming die, and the guide cylinder is provided with an air inlet pipe penetrating through the front end and the rear end and a plurality of air return holes communicating the front end and the rear end; the second air blower is connected with the rear end of the air inlet pipe through an air conveying pipe; the cutter is used for cutting the cylindrical EPS sheet from the lower side; the second air blower is electrically connected with the electric cabinet, and the electric cabinet controls the second air blower to work.

8. The EPS sheet production system according to claim 7, wherein a disc portion having a diameter equal to that of the guide cylinder is further provided in front of the guide cylinder; the air inlet pipe is arranged on the rear wall of the disc part in a penetrating mode, and a plurality of air return holes are formed in the rear wall of the disc part.

9. The EPS sheet production system of claim 7, wherein an atomization device is arranged in the electric cabinet and delivers the water mist to the front of the guide cylinder through a delivery pipe, and the delivery pipe is arranged in the air return hole of the guide cylinder in a penetrating manner.

10. The EPS sheet production system of claim 1, wherein an atomizer for spraying water mist to the EPS sheets and a blowing device for drying the EPS sheets are arranged in front of the winding device.