CN115107251A - Extrusion molding device is used in plastic board production - Google Patents
Extrusion molding device is used in plastic board production Download PDFInfo
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- CN115107251A CN115107251A CN202210580407.0A CN202210580407A CN115107251A CN 115107251 A CN115107251 A CN 115107251A CN 202210580407 A CN202210580407 A CN 202210580407A CN 115107251 A CN115107251 A CN 115107251A
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- 238000001125 extrusion Methods 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 126
- 238000001816 cooling Methods 0.000 claims description 114
- 238000007789 sealing Methods 0.000 claims description 37
- 238000005192 partition Methods 0.000 claims description 18
- 238000007664 blowing Methods 0.000 claims description 17
- 238000000465 moulding Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model belongs to the technical field of the technique of plastic board production and processing and specifically relates to a plastic board production is with extrusion moulding device is related to, and it includes frame, extrusion mechanism and forming mechanism, extrusion mechanism sets up one side of frame, forming mechanism includes fixed mould, sliding die, side form and drive assembly, the fixed mould sets up in the frame, sliding die slides along vertical direction and sets up on the fixed mould, the both sides of fixed mould all slide be provided with the sliding die butt the side form, drive assembly sets up in the frame, drive assembly with sliding die connects and drives sliding die is facing the fixed mould is close to. This application is through the forming mechanism who sets up for this forming device can adjust according to actual production needs, makes obtaining of the suitability of this equipment improve, has reduced the time of changing the mould simultaneously, and then makes work efficiency obtain improving.
Description
Technical Field
The application relates to the technical field of plastic board production and processing, in particular to an extrusion molding device for plastic board production.
Background
At present, plastic plates are made of synthetic polymer compounds in a molten state, the shapes and styles of the plastic can be freely changed, when the plastic plates are produced, plastic raw materials are heated and softened in an extruder and are conveyed into a screw rod of the extruder, so that the softened plastic is continuously extruded from an upper extrusion die orifice and a lower extrusion die orifice in a screw rod or other pushing mode. The plastic extruded from the die orifice of the extrusion die is formed and cooled by the forming die and solidified and formed.
Aiming at the related technology, the inventor considers that the distance between the upper and lower two halves of the mold is fixed, when plastic plates with different thicknesses are manufactured, the mold needs to be replaced, the plastic plates cannot be manufactured according to actual requirements, and accordingly the applicability is poor.
Disclosure of Invention
In order to improve plastic board production and use extrusion moulding device's suitability, this application provides a plastic board production and use extrusion moulding device.
The application provides a pair of extrusion moulding device is used in plastic board production adopts following technical scheme:
the utility model provides an extrusion moulding device is used in plastic board production, includes frame, extruding means and forming mechanism, extruding means sets up one side of frame, forming mechanism includes fixed mould, sliding die, side form and drive assembly, the fixed mould sets up in the frame, sliding die slides along vertical direction and sets up on the fixed mould, the both sides of fixed mould all slide be provided with the sliding die butt the side form, drive assembly sets up in the frame, drive assembly with sliding die connects and drives sliding die is facing the fixed mould is close to.
By adopting the technical scheme, firstly, according to the thickness of a plastic plate to be produced, the driving assembly is used for driving the sliding die to slide, then the sliding side die is abutted against the sliding die, then the extrusion mechanism extrudes the molten plastic and conveys the molten plastic between the fixed die and the sliding die, the plastic plate is formed by cooling and cooling, then the formed plastic plate is pulled to slide, and the material is continuously fed between the fixed die and the sliding die, so that the plastic plate is continuously produced; through the forming mechanism who sets up for this forming device can adjust according to actual production needs, makes obtaining of the suitability of this equipment improve, has reduced the time of changing the mould simultaneously, and then makes work efficiency obtain improving.
Optionally, be provided with elastic component on the fixed mould, elastic component includes guide bar and spring, the guide bar sets up on the fixed mould and with the side form is kept away from the one end of sliding die slides and is connected, the spring housing is established on the guide bar, the both ends of spring respectively with the fixed mould with the side form is connected, the spring drives the side form supports tightly on the sliding die.
By adopting the technical scheme, according to the production requirement of the plastic plate, the driving assembly drives the sliding die to approach the fixed die, the sliding die drives the side die to slide along the guide rod, and meanwhile, the spring is stressed and compressed and releases elastic force to drive the side die to always abut against the sliding die; the stability of the side die is improved through the arranged elastic assembly, the probability that the side die slides towards the direction far away from the sliding die is reduced, and meanwhile, the elastic assembly is simple in structure and convenient to achieve.
Optionally, the driving assembly comprises an air cylinder and a fixed seat, the fixed seat is arranged on one side, away from the fixed die, of the sliding die, the cylinder body of the air cylinder is arranged on the rack, and the piston rod of the air cylinder is connected with the fixed seat and drives the fixed seat to slide.
Through adopting above-mentioned technical scheme, when needs clear up fixed mould and sliding die, at first with the start cylinder, the piston rod of cylinder drives the sliding die on the fixing base and slides towards the direction of keeping away from the fixed mould, then clears up fixed mould and sliding die, through the drive assembly who sets up, has realized being close to of fixed mould and sliding die or keeping away from, and the cylinder motion is steady simultaneously.
Optionally, be provided with cooling body in the frame, cooling body includes water tank, cooling tube, drain pipe and water pump, the fixed mould with all wear to be equipped with in the slip mould the cooling tube, the water pump sets up on the water tank, the water pump with the cooling tube is connected, the one end of drain pipe with the cooling tube is connected, the other end of drain pipe with the water tank is connected.
By adopting the technical scheme, after the extrusion mechanism conveys the plastic raw material in a molten state to the fixed die and the sliding die, the water pump is started to convey water into the fixed die and the sliding die through the cooling pipe, the plastic raw material in the molten state is cooled, and then the water flows back into the water tank through the drain pipe; through the cooling mechanism who sets up for the cooling shaping speed of plastic board is accelerated, and it is long when having reduced the cooling, makes work efficiency show and improves.
Optionally, the cooling body still includes the baffle, the baffle sets up in the water tank, the baffle will the water tank cuts off for reservoir chamber and cooling chamber, the cooling tube with reservoir chamber intercommunication, the drain pipe with the cooling chamber intercommunication, the overflow hole has been seted up on the baffle, and when the water level in one of them cavity surpassed during the overflow hole, water passes through the overflow hole gets into another cavity.
By adopting the technical scheme, the water in the water storage chamber is conveyed to the cooling pipe by the water pump, then the heat is carried to the cooling chamber through the drain pipe for cooling, and when more water exists in the cooling chamber, water flow enters the water storage chamber through the overflow hole; the water absorbing heat and the water with lower relative temperature are separated through the arranged partition plate, so that the water temperature in the water storage chamber is reduced from rising too fast, the cooling effect is kept, meanwhile, the time for the water in the cooling chamber to enter the water storage chamber is delayed through the arranged overflow hole, the water absorbing heat has longer cooling time, and the cooling effect of the water is enhanced; meanwhile, the overflow hole can reduce the overflow condition from the single chamber when the water level is too high.
Optionally, the cooling mechanism further includes a check assembly, the check assembly includes a check plate, the check plate is rotatably disposed on one side of the partition plate close to the cooling pipe, and the check plate closes the overflow hole.
By adopting the technical scheme, when the water level in the water storage chamber is higher than the overflow hole, the check plate covers the overflow hole by means of self weight, and the check plate is tightly propped by water, so that the water flow is reduced to enter the cooling chamber; the check plate reduces the water in the water storage chamber from entering the cooling chamber.
Optionally, the cooling mechanism further includes a spiral plate, the spiral plate is disposed in the cooling pipe, and the spiral plate is spirally disposed along a length direction of the cooling pipe.
Through adopting above-mentioned technical scheme, start the water pump, the water pump is carried water to the cooling tube in, and water flows along the spiral plate in the cooling tube, has prolonged the time of water in the cooling tube through the spiral plate that sets up, and then makes the cooling water increase with the contact time of fixed mould and sliding die, and then can take away more heat for the shaping speed of plastic board obtains improving.
Optionally, be provided with the air-cooling mechanism on the cooling chamber, the air-cooling mechanism includes air-blower, blast pipe and ends contrary subassembly, be provided with a plurality ofly on the diapire of cooling chamber the blast pipe, the blast pipe is the blind pipe, seted up on the blast pipe a plurality ofly with the blast hole of cooling chamber intercommunication, the blast pipe with the air-blower is connected and is communicate, it sets up to end contrary subassembly in the blast pipe, it is used for reducing rivers entering blast pipe to end contrary subassembly.
By adopting the technical scheme, after the water absorbing heat enters the cooling chamber, the air blower is started, the air blower blows air into the cooling chamber through the air blowing pipe to cool the water in the cooling chamber, and when the air blower is stopped, the non-return assembly can reduce the water entering the air blowing pipe; through the air cooling mechanism that sets up for the area of contact of water and air increases, and then has accelerated thermal loss, makes the water cooling speed in the cooling chamber obtain improving.
Optionally, the vertical cross section of the blast pipe is elliptical, the non-return assembly comprises a non-return pipe, an electromagnet and a magnet, the non-return pipe is connected in the blast pipe in a sliding manner and is attached to the inner wall of the blast pipe, one end, far away from the air blower, of the non-return pipe is closed, the non-return pipe is provided with a plurality of air inlet holes corresponding to the air blowing holes, the magnet is arranged at the closed end of the non-return pipe, and the electromagnet is arranged at one end, far away from the air blower, of the blast pipe; when the air inlet hole is communicated with the air blowing hole, the electromagnet is adsorbed to the magnetic block.
By adopting the technical scheme, when the water in the cooling chamber is cooled, the air blower is started, the electromagnet is started at the same time, the electromagnet drives the magnetic block to approach the electromagnet until the magnetic block is attached to the electromagnet, the magnetic block drives the non-return pipe to slide along the blast pipe, the air inlet hole in the non-return pipe is communicated with the blast hole in the blast pipe, air enters the cooling chamber through the blast hole to accelerate the cooling of the water, when the cooling chamber stops working, the electromagnet is reversed, the electromagnet drives the magnetic block to slide in the direction away from the electromagnet, the magnetic block drives the non-return pipe to slide, the air inlet hole and the blast hole are staggered, and the water flow is reduced to enter the blast pipe; through the non-return assembly, water flow entering the air blower through the blast pipe is reduced, damage to the air blower is reduced, and the service life of the air blower is prolonged.
Optionally, a first sealing groove and a second sealing groove are respectively formed at two ends of the check pipe, the check assembly further comprises a first sealing ring and a second sealing ring, the first sealing ring is arranged in the first sealing groove, the first sealing ring is abutted to the inner wall of the blast pipe and generates relative displacement, the second sealing ring is arranged in the second sealing groove, and the second sealing ring is abutted to the inner wall of the blast pipe and generates relative displacement.
By adopting the technical scheme, when the blast pipe stops working, the electromagnet is reversed, the electromagnet drives the magnetic block to slide towards the direction far away from the electromagnet, the magnetic block drives the non-return pipe to slide, the non-return pipe, the first sealing ring and the second sealing ring generate relative displacement, the air inlet hole and the blast hole are staggered, and the water flow is reduced from entering the blast pipe; through the first sealing ring and the second sealing ring that set up, reduced rivers and got into the blast pipe and cause the damage to the electro-magnet, reduced simultaneously rivers and followed the blast pipe and get into the air-blower, and then improved the security, reduced the probability of equipment short circuit and damage.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arranged forming mechanism, the forming device can be adjusted according to actual production requirements, so that the applicability of the equipment is improved, the time for replacing the die is reduced, and the working efficiency is improved;
2. the stability of the side die is improved through the arranged elastic assembly, the probability that the side die slides towards the direction far away from the sliding die is reduced, and meanwhile, the elastic assembly is simple in structure and convenient to realize;
3. the spiral plate is arranged to prolong the time of water in the cooling pipe, so that the contact time of the cooling water with the fixed die and the sliding die is prolonged, more heat can be taken away, and the forming rate of the plastic plate is improved;
4. the air cooling mechanism is arranged, so that the contact area of water and air is increased, further the loss of heat is accelerated, and the water cooling speed in the cooling chamber is improved;
5. through the non-return assembly, water flow entering the air blower through the blast pipe is reduced, damage to the air blower is reduced, and the service life of the air blower is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of an extrusion molding apparatus for producing plastic boards according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a molding mechanism in an embodiment of the present application;
FIG. 3 is a schematic structural diagram of an elastic assembly according to an embodiment of the present application;
FIG. 4 is a schematic structural view of a check assembly in an embodiment of the present application;
fig. 5 is a schematic structural diagram of an air cooling mechanism in an embodiment of the present application.
Reference numerals: 100. a frame; 200. an extrusion mechanism; 210. a double screw extruder; 220. a material gathering pipe; 300. a molding mechanism; 310. a fixed mold; 320. sliding the mold; 330. performing side die; 340. a drive assembly; 341. a cylinder; 342. a fixed seat; 350. an elastic component; 351. a guide bar; 352. a spring; 400. a cooling mechanism; 410. a water tank; 411. a water storage chamber; 412. a cooling chamber; 420. a cooling tube; 430. a drain pipe; 440. a partition plate; 441. an overflow aperture; 450. a check assembly; 451. a check plate; 452. a rotating shaft; 500. an air cooling mechanism; 510. a blower; 520. a blast pipe; 521. a blast hole; 530. a backstop assembly; 531. a non-return pipe; 532. an electromagnet; 533. a magnetic block; 534. a first seal groove; 535. a second seal groove; 536. a first seal ring; 537. a second seal ring.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses an extrusion moulding device is used in plastic board production.
Referring to fig. 1, the extrusion molding apparatus for plastic plate production includes a frame 100, an extrusion mechanism 200 for conveying plastic material in a molten state is disposed on one side of the frame 100, a molding mechanism 300 for cooling and molding a plastic plate is disposed on the frame 100, the molding mechanism 300 is located at a discharge end of the extrusion mechanism 200, and the extrusion mechanism 200 conveys the plastic material in the molten state into the molding mechanism 300 for molding and cooling.
Referring to fig. 1, 2 and 3, the extruding mechanism 200 includes a twin-screw extruder 210 disposed at one side of the frame 100, and a material collecting pipe 220 for collecting materials is integrally provided at a discharge end of the twin-screw extruder 210; the forming mechanism 300 comprises a fixed die 310 fixedly connected with the rack 100, sliding grooves are formed in two sides of the fixed die 310 in the width direction, a side die 330 is connected in the sliding grooves in a sliding manner, the side die 330 is L-shaped, an elastic assembly 350 is arranged in each sliding groove, each elastic assembly 350 comprises a plurality of guide rods 351 fixedly connected to the bottom wall of each sliding groove, and one ends, far away from the bottom wall of each sliding groove, of the guide rods 351 are connected with the side die 330 in a sliding manner; a spring 352 is sleeved on the guide rod 351, one end of the spring 352 is fixedly connected with the bottom wall of the sliding groove, and the other end of the spring 352 is fixedly connected with the side die 330; the rack 100 is provided with a driving assembly 340, the driving assembly 340 comprises a plurality of air cylinders 341 fixedly connected to the rack 100 through bolts, the plurality of air cylinders 341 are divided into two groups, the two groups of air cylinders 341 are respectively positioned at two sides of the fixed mold 310, two fixed seats 342 are connected above the fixed mold 310 in a sliding manner, and two ends of each fixed seat 342 are respectively hinged with piston rods of the two air cylinders 341 positioned at two sides of the fixed mold 310; the two fixed seats 342 are fixedly connected with a sliding die 320 together, the sliding die 320 has the same size as the fixed die 310 and is positioned above the fixed die 310, the sliding die 320 is abutted against the side die 330, and the spring 352 drives the side die 330 to abut against the sliding die 320; when the plastic plate is produced, firstly, according to the thickness of the plastic plate to be produced, the air cylinder 341 is started, the air cylinder 341 drives the sliding die 320 on the fixed seat 342 to approach or depart from the fixed die 310, and the spring 352 drives the side die 330 to always abut against the sliding die 320, so that the distance between the fixed die 310 and the sliding die 320 is adjusted.
Referring to fig. 2 and 4, in order to accelerate the cooling time of the plastic plate, a cooling mechanism 400 connected to the fixed mold 310 and the sliding mold 320 is disposed on the machine frame 100, the cooling mechanism 400 includes a water tank 410 disposed on one side of the machine frame 100, a partition 440 is fixedly connected to the water tank 410, the partition 440 partitions the water tank 410 into two chambers, which are a water storage chamber 411 and a cooling chamber 412, respectively, a water pump is fixedly connected to a sidewall of the water storage chamber 411, a cooling pipe 420 is fixedly connected to an end of the water pump away from the water storage chamber 411, the cooling pipe 420 is provided in plurality, a plurality of cooling pipes 420 are respectively inserted into the fixed mold 310 and the sliding mold 320, a spiral plate for extending the water flow time is integrally disposed in the cooling pipe 420, the spiral plate is spirally extended along the length direction of the cooling pipe 420, so that the movement path of the water flow passing through the spiral plate is lengthened, and therefore the contact time between the water flow and the fixed mold 310 and the sliding mold 320 is lengthened, the plastic raw material in a molten state takes away heat along with the flow of water flow, and the plastic plate raw material is cooled and solidified to form a plastic plate; a drain pipe 430 is fixedly connected to one end of the cooling pipe 420 far away from the water storage chamber 411, and one end of the drain pipe 430 far away from the cooling pipe 420 is connected and communicated with the cooling chamber 412; the water is returned to the water tank 410 through the drain pipe 430, thereby reducing the waste of water resources.
Referring to fig. 2 and 4, the partition 440 is provided with two overflow holes 441, the overflow holes 441 are located at one end of the partition 440 away from the bottom of the water tank 410, the overflow holes 441 communicate the water storage chamber 411 with the cooling chamber 412, and when the water level in the cooling chamber 412 is higher than the overflow holes 441, water enters the water storage chamber 411 through the overflow holes 441; the partition 440 is provided with a check assembly 450 for reducing water in the water storage chamber 411 from entering the cooling chamber 412, the check assembly 450 comprises a rotating shaft 452 rotatably connected to the partition 440, the rotating shaft 452 is located in the water storage chamber 411 and the rotating shaft 452 is located at one end of the partition 440 far away from the bottom wall of the water tank 410, a check plate 451 is fixedly connected to the rotating shaft 452, and the check plate 451 closes a drainage hole; when the water level in the cooling chamber 412 is higher than the overflow hole 441, the water flow pushes the check plate 451 at the overflow hole 441 to rotate, and the water flow enters the water storage chamber 411 through the overflow hole 441; when the water level in the water storage chamber 411 is higher than the overflow hole 441, the check plate 451 closes the overflow hole 441 by its own weight, and the check plate 451 is pressed against the partition 440 by the water flow as the water level rises.
Referring to fig. 4 and 5, an air cooling mechanism 500 is disposed in the cooling chamber 412 of the water tank 410, the air cooling mechanism 500 includes an air blower 510 disposed on one side of the water tank 410, a plurality of blast pipes 520 are fixedly connected to the bottom wall of the cooling chamber 412, the blast pipes 520 are flat oval pipes, a plurality of blast holes 521 communicated with the cooling chamber 412 are formed in the blast pipes 520, one end of the blast pipes 520 far away from the cooling chamber 412 is connected and communicated with an air outlet end of the air blower 510, and one end of the blast pipes 520 far away from the air blower 510 is closed; a non-return component 530 is arranged on the blast pipe 520, the non-return component 530 comprises a non-return pipe 531 connected in the blast pipe 520 in a sliding manner, the outer side wall of the non-return pipe 531 is abutted against the inner side wall of the blast pipe 520 and slides relatively, one end of the non-return pipe 531, which is far away from the blast fan 510, is a closed blind pipe, an air inlet hole corresponding to the blast hole 521 is formed in the non-return pipe 531, and the air inlet hole can be communicated with the blast hole 521 on the blast pipe 520; when the air inlet hole is communicated with the blast hole 521, the air supply and water cooling of the cooling chamber 412 are realized; an electromagnet 532 is fixedly connected to one side of one end, far away from the blower 510, of the blast pipe 520 and close to the non-return pipe 531, and a magnetic block 533 is fixedly connected to the side wall of one end, close to the electromagnet 532, of the non-return pipe 531; when the water in the cooling chamber 412 is cooled, the blower 510 is started firstly, the blower 510 compresses the air in the blower pipe 520, the electromagnet 532 is electrified and releases magnetic force, the magnetic block 533 drives the non-return pipe 531 to approach the electromagnet 532, the air inlet holes in the non-return pipe 531 are in one-to-one correspondence with and communicated with the air blowing holes 521 in the blower pipe 520, the compressed air enters the cooling chamber 412 through the air blowing holes 521, the water in the cooling chamber 412 is disturbed and the contact surface between the water and the air is increased, and therefore heat dissipation is accelerated.
Referring to fig. 5, in order to reduce the contact of water with the electromagnet 532 through the blowing hole 521 and improve safety, a first sealing groove 534 and a second sealing groove 535 are respectively formed at both ends of the check pipe 531, and both the first sealing groove 534 and the second sealing groove 535 are formed along the circumferential direction of the check pipe 531; a first sealing ring 536 is arranged in the first sealing groove 534, one side of the first sealing ring 536, which is far away from the first sealing groove 534, is abutted against the inner wall of the blast pipe 520 and slides relatively, a second sealing ring 537 is arranged in the second sealing groove 535, and one side of the second sealing ring 537, which is far away from the bottom wall of the second sealing groove 535, is abutted against the inner wall of the blast pipe 520 and slides relatively; the first and second sealing rings 536 and 537 reduce the possibility of water entering between the blast pipe 520 and the non-return pipe 531 through the blast hole 521.
The application embodiment an extrusion moulding device for plastic board production's implementation principle does: firstly, according to the thickness of a plastic plate to be processed, starting the air cylinder 341, driving the sliding die on the fixed seat 342 to be close to or far away from the fixed die 310 by the air cylinder 341, and driving the side die 330 to be tightly pressed on the sliding die 320 by the spring 352 on the fixed die 310 until the distance between the sliding die 320 and the fixed die 310 meets the requirement; then the twin-screw extruder 210 is started, the twin-screw extruder 210 conveys the plastic raw material in a molten state to a position between the fixed mold 310 and the sliding mold 320, then the water pump is started, the water pump conveys water into the cooling pipe 420, the cooling pipe 420 takes away heat absorbed by the fixed mold 310 and the sliding mold 320 and enters the cooling chamber 412 through the drain pipe 430, the cooling water continuously and circularly flows to quickly reduce the temperature of the plastic plate raw material, so that the plastic plate is quickly formed, then the formed plastic plate is pulled out of a position between the fixed mold 310 and the sliding mold 320, the twin-screw extruder continuously conveys the raw material to a position between the fixed mold 310 and the sliding mold 320 for cooling and forming, and the forming production is continuously carried out along with the movement of the formed plastic plate.
After water in the water drainage pipe 430 enters the cooling chamber 412, the blower 510 is started, the blower 510 conveys air into the blower pipe 520, the electromagnet 532 drives the magnetic block 533 and the non-return pipe 531 to approach the electromagnet 532, then the air inlet hole is communicated with the blower hole 521, the air enters the cooling chamber 412 to disturb the water, and meanwhile, the contact area of the water and the air is increased, so that the heat in the water is quickly dissipated; when the water level is higher than the overflow hole 441, the water flow pushes the check plate 451 to rotate, the check plate 451 opens the overflow hole 441, the water flow enters the water storage chamber 411 through the overflow hole 441, and then the cooling pipe 420 cools the fixed mold 310 and the sliding mold 320.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. An extrusion molding device for plastic plate production comprises a frame (100), an extrusion mechanism (200) and a molding mechanism (300), wherein the extrusion mechanism (200) is arranged on one side of the frame (100), characterized in that the molding mechanism (300) comprises a fixed die (310), a sliding die (320), a side die (330) and a driving assembly (340), the fixed die (310) is arranged on the frame (100), the sliding die (320) is arranged on the fixed die (310) in a sliding way along the vertical direction, the two sides of the fixed die (310) are provided with the side dies (330) which are abutted against the sliding die (320) in a sliding way, the driving assembly (340) is arranged on the rack (100), and the driving assembly (340) is connected with the sliding die (320) and drives the sliding die (320) to approach towards the fixed die (310).
2. The extrusion molding device for producing plastic plates, according to claim 1, wherein the fixed mold (310) is provided with an elastic component (350), the elastic component (350) comprises a guide rod (351) and a spring (352), the guide rod (351) is arranged on the fixed mold (310) and is connected with one end, away from the sliding mold (320), of the side mold (330) in a sliding manner, the spring (352) is sleeved on the guide rod (351), two ends of the spring (352) are respectively connected with the fixed mold (310) and the side mold (330), and the spring (352) drives the side mold (330) to abut against the sliding mold (320).
3. The extrusion molding apparatus for plastic board production according to claim 1, wherein the driving assembly (340) comprises a cylinder (341) and a fixed seat (342), the fixed seat (342) is disposed on a side of the sliding mold (320) away from the fixed mold (310), a cylinder body of the cylinder (341) is disposed on the frame (100), and a piston rod of the cylinder (341) is connected to the fixed seat (342) and drives the fixed seat (342) to slide.
4. The extrusion molding device for producing plastic plates, according to claim 1, wherein a cooling mechanism (400) is arranged on the machine frame (100), the cooling mechanism (400) comprises a water tank (410), a cooling pipe (420), a water drainage pipe (430) and a water pump, the cooling pipe (420) penetrates through the fixed die (310) and the sliding die (320), the water pump is arranged on the water tank (410), the water pump is connected with the cooling pipe (420), one end of the water drainage pipe (430) is connected with the cooling pipe (420), and the other end of the water drainage pipe (430) is connected with the water tank (410).
5. The extrusion molding apparatus for manufacturing plastic boards as claimed in claim 4, wherein the cooling mechanism (400) further comprises a partition (440), the partition (440) is disposed in the water tank (410), the partition (440) partitions the water tank (410) into a water storage chamber (411) and a cooling chamber (412), the cooling pipe (420) is communicated with the water storage chamber (411), the water discharge pipe (430) is communicated with the cooling chamber (412), the partition (440) is provided with an overflow hole (441), and when the water level in one of the chambers is lower than the overflow hole (441), water enters the other chamber through the overflow hole (441).
6. The extrusion molding apparatus for manufacturing plastic board as claimed in claim 5, wherein the cooling mechanism (400) further comprises a check assembly (450), the check assembly (450) comprises a check plate (451), the check plate (451) is rotatably disposed on a side of the partition (440) close to the cooling pipe (420), and the check plate (451) closes the overflow hole (441).
7. The extrusion molding apparatus for manufacturing plastic boards as claimed in claim 5, wherein the cooling mechanism (400) further comprises a spiral plate disposed inside the cooling pipe (420), the spiral plate being spirally disposed along a length direction of the cooling pipe (420).
8. The extrusion molding apparatus for plastic board production according to claim 5, wherein an air cooling mechanism (500) is disposed on the cooling chamber (412), the air cooling mechanism (500) comprises an air blower (510), a plurality of blowing pipes (520) and a non-return component (530), the bottom wall of the cooling chamber (412) is provided with the plurality of blowing pipes (520), the blowing pipes (520) are blind pipes, the blowing pipes (520) are provided with a plurality of blowing holes (521) communicated with the cooling chamber (412), the blowing pipes (520) are connected and communicated with the air blower (510), the non-return component (530) is disposed in the blowing pipes (520), and the non-return component (530) is used for reducing water flow entering the blowing pipes (520).
9. The extrusion molding device for plastic board production as claimed in claim 8, wherein the vertical cross section of the blast pipe (520) is elliptical, the check assembly (530) comprises a check pipe (531), an electromagnet (532) and a magnet (533), the check pipe (531) is slidably connected in the blast pipe (520) and is attached to the inner wall of the blast pipe (520), one end of the check pipe (531) far away from the blower (510) is closed, the check pipe (531) is provided with a plurality of air inlet holes corresponding to the air blowing holes (521), the magnet (533) is arranged at the closed end of the check pipe (531), and the electromagnet (532) is arranged at one end of the blast pipe (520) far away from the blower (510); when the air inlet hole is communicated with the air blowing hole (521), the electromagnet (532) and the magnetic block (533) are adsorbed.
10. The extrusion molding apparatus for plastic board production according to claim 9, wherein a first sealing groove (534) and a second sealing groove (535) are respectively formed at two ends of the check pipe (531), the check assembly (530) further includes a first sealing ring (536) and a second sealing ring (537), the first sealing ring (536) is disposed in the first sealing groove (534), the first sealing ring (536) abuts against an inner wall of the blast pipe (520) and relatively displaces, the second sealing ring (537) is disposed in the second sealing groove (535), and the second sealing ring (537) abuts against an inner wall of the blast pipe (520) and relatively displaces.
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| CN202210580407.0A CN115107251B (en) | 2022-05-26 | 2022-05-26 | Extrusion molding device for plastic plate production |
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|---|---|---|---|
| CN202210580407.0A CN115107251B (en) | 2022-05-26 | 2022-05-26 | Extrusion molding device for plastic plate production |
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| CN115107251A true CN115107251A (en) | 2022-09-27 |
| CN115107251B CN115107251B (en) | 2023-12-22 |
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