阅读说明：本技术 一种塑料成型冷却烘干装置 (Plastic molding cooling and drying device ) 是由 时川 林涛 于 2020-07-14 设计创作，主要内容包括：本发明涉及塑料加工技术领域,尤其涉及一种塑料成型冷却烘干装置,包括机架以及分别设置在所述机架上的水冷机构、分筛机构和烘干机构,所述水冷机构和分筛机构在所述机架上沿第一方向依次设置；所述水冷机构包括水冷箱、分离辊、第一导向辊和沥水辊；所述分筛机构包括分筛板、第一压辊、第二压辊、第二导向辊、升降轴承、凸轮、伺服电机、齿轮链条组件、第三压辊和第四压辊；所述烘干机构包括热风机,所述热风机设置在机架上并且位于第二导向辊的竖直上方,所述热风机的出风口朝向第二导向辊。本发明提供的塑料成型冷却烘干装置在多级沥水作用下提高了塑料条表面的干燥度,并配合塑料条的震动热风烘干作业提高了塑料条的干燥质量和效率。(The invention relates to the technical field of plastic processing, in particular to a plastic molding, cooling and drying device which comprises a rack, and a water cooling mechanism, a screening mechanism and a drying mechanism which are respectively arranged on the rack, wherein the water cooling mechanism and the screening mechanism are sequentially arranged on the rack along a first direction; the water cooling mechanism comprises a water cooling tank, a separation roller, a first guide roller and a draining roller; the screening mechanism comprises a screening plate, a first pressing roller, a second guide roller, a lifting bearing, a cam, a servo motor, a gear chain assembly, a third pressing roller and a fourth pressing roller; the drying mechanism comprises an air heater, the air heater is arranged on the rack and is positioned vertically above the second guide roller, and an air outlet of the air heater faces the second guide roller. The plastic molding cooling and drying device provided by the invention improves the dryness of the surface of the plastic strip under the action of multi-stage draining, and improves the drying quality and efficiency of the plastic strip by matching with the vibration hot air drying operation of the plastic strip.)

1. The plastic molding cooling and drying device is characterized by comprising a rack, and a water cooling mechanism, a screening mechanism and a drying mechanism which are respectively arranged on the rack, wherein the water cooling mechanism and the screening mechanism are sequentially arranged on the rack along a first direction;

the water cooling mechanism comprises a water cooling box, a separation roller, a first guide roller and a draining roller, the water cooling box is arranged on one side of the machine, the water cooling box is hollow and is provided with an opening at the top, and cooling water is filled in the water cooling box; the separation roller, the first guide roller and the draining roller are rotatably arranged on the water cooling tank in sequence along a first direction, the separation roller, the first guide roller and the draining roller are all perpendicular to the first direction, the separation roller and the draining roller are all located above the liquid level of cooling water, and the first guide roller is located below the liquid level of the cooling water; the surface of the separation roller is provided with U-shaped grooves along the circumferential direction, and more than two groups of U-shaped grooves are arranged at intervals along the axial direction of the separation roller; the surface of the first guide roller is provided with annular positioning grooves, more than two groups of annular positioning grooves are arranged at intervals along the axial direction of the first guide roller, and the cross section of each annular positioning groove is semicircular; the surface of the draining roller is provided with annular draining grooves along the circumferential direction, more than two groups of annular draining grooves are arranged at intervals along the axial direction of the draining roller, and the cross section of each annular draining groove is in an isosceles trapezoid shape;

the screening mechanism comprises a screening plate, a first pressing roller, a second guide roller, a lifting bearing, a cam, a servo motor, a gear chain assembly, a third pressing roller and a fourth pressing roller, wherein the screening plate is arranged on the frame and is positioned on one side of the draining roller along the first direction, more than two groups of fin plates for separating plastic strips are arranged on the screening plate, any two adjacent fin plates surround a channel for the plastic strips to pass through, and the width of the channel in the second direction perpendicular to the first direction is gradually reduced along the first direction; the first pressing roller and the second pressing roller are both rotatably arranged on the frame and positioned on one side of the sub-sieve plate along the first direction, and more than two groups of first pressing rollers and more than two groups of second pressing rollers are arranged in a vertically staggered manner along the first direction; the second guide rollers are rotatably arranged on the rack and positioned on one side of the second press roller along the first direction, more than two groups of second guide rollers are arranged at intervals along the first direction, the rack is provided with an upright post, the upright post is provided with a lifting groove, the second guide rollers are in sliding connection with the lifting groove through a lifting bearing, the cam is rotatably arranged on the rack, the cam is supported at the bottom of the lifting bearing, the servo motor is arranged on the rack, and the servo motor drives the cam to rotate through a gear chain assembly; the third press roller and the fourth press roller are rotatably arranged on the frame and are positioned on one side of the second guide roller along the first direction, and more than two groups of the third press rollers and more than two groups of the fourth press rollers are arranged in a vertically staggered manner along the first direction; more than two groups of annular grooves for positioning the plastic strips are formed in the surfaces of the first pressing roller, the second pressing roller, the third pressing roller and the fourth pressing roller;

the drying mechanism comprises an air heater, the air heater is arranged on the rack and is positioned vertically above the second guide roller, and an air outlet of the air heater faces the second guide roller.

2. The plastic molding cooling and drying device of claim 1, wherein the sub-sieve plate is arranged from one end close to the draining roller to the other end in an upward inclined manner, and the included angle between the sub-sieve plate and the horizontal plane is 11-29 degrees.

3. The plastic molding cooling and drying device of claim 1, wherein the pressure angles of any two adjacent sets of cams are not equal.

4. The plastic molding cooling and drying device of claim 1, wherein the surfaces of the draining roller and the screening plate are both provided with organic fluorine compound hydrophobic layers.

5. The plastic molding cooling and drying device of claim 1, wherein the number of the groups of the first press roll, the second press roll, the third press roll and the fourth press roll is two.

6. The plastic molding, cooling and drying device as claimed in claim 1, wherein the surfaces of the first press roller, the second press roller, the third press roller and the fourth press roller are all provided with rubber layers.

7. The plastic molding cooling and drying device as claimed in claim 1, wherein the side wall of the water cooling tank is respectively provided with a water inlet pipe and a water outlet pipe communicated with the inner cavity of the water cooling tank.

8. The plastic molding cooling and drying device of claim 1, wherein the water cooling mechanism further comprises a first air cylinder, the first air cylinder is arranged on the frame, both ends of the draining roller are rotatably connected with mounting seats, and an air pressure rod of the first air cylinder is connected with the mounting seats.

9. The plastic molding cooling and drying device of claim 8, wherein the screening mechanism further comprises a second cylinder and a third cylinder respectively arranged on the frame, the second cylinder is rotatably connected with the second press roll, and the third cylinder is rotatably connected with the fourth press roll.

10. The plastic molding cooling and drying device of claim 9, wherein the servo motor, the hot air blower, the first cylinder, the second cylinder and the third cylinder are all connected with a power supply.

Technical Field

The invention relates to the technical field of plastic processing, in particular to a plastic molding, cooling and drying device.

Background

With the progress of society, plastic products are gradually replacing wood and metal products. The plastic product is mainly made of plastic particles through processes of injection molding, blow molding and the like. At present, in the preparation process of plastic particles, raw materials are generally put into a melt extruder, plastic strips continuously extruded from an extrusion die head enter a cooling tank filled with water for cooling, and finally enter a granulator for being cut into particles. However, the plastic strip entering the granulator has excessive moisture, and after the plastic strip directly enters the granulator, the excessive moisture can seriously affect the use of the granulator and shorten the service life of the granulator.

Disclosure of Invention

The invention aims to provide a high-efficiency plastic molding, cooling and drying device.

In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows: a plastic molding cooling and drying device comprises a rack, and a water cooling mechanism, a screening mechanism and a drying mechanism which are respectively arranged on the rack, wherein the water cooling mechanism and the screening mechanism are sequentially arranged on the rack along a first direction;

the water cooling mechanism comprises a water cooling box, a separation roller, a first guide roller and a draining roller, the water cooling box is arranged on one side of the machine, the water cooling box is hollow and is provided with an opening at the top, and cooling water is filled in the water cooling box; the separation roller, the first guide roller and the draining roller are rotatably arranged on the water cooling tank in sequence along a first direction, the separation roller, the first guide roller and the draining roller are all perpendicular to the first direction, the separation roller and the draining roller are all located above the liquid level of cooling water, and the first guide roller is located below the liquid level of the cooling water; the surface of the separation roller is provided with U-shaped grooves along the circumferential direction, and more than two groups of U-shaped grooves are arranged at intervals along the axial direction of the separation roller; the surface of the first guide roller is provided with annular positioning grooves, more than two groups of annular positioning grooves are arranged at intervals along the axial direction of the first guide roller, and the cross section of each annular positioning groove is semicircular; the surface of the draining roller is provided with annular draining grooves along the circumferential direction, more than two groups of annular draining grooves are arranged at intervals along the axial direction of the draining roller, and the cross section of each annular draining groove is in an isosceles trapezoid shape;

the screening mechanism comprises a screening plate, a first pressing roller, a second guide roller, a lifting bearing, a cam, a servo motor, a gear chain assembly, a third pressing roller and a fourth pressing roller, wherein the screening plate is arranged on the frame and is positioned on one side of the draining roller along the first direction, more than two groups of fin plates for separating plastic strips are arranged on the screening plate, any two adjacent fin plates surround a channel for the plastic strips to pass through, and the width of the channel in the second direction perpendicular to the first direction is gradually reduced along the first direction; the first pressing roller and the second pressing roller are both rotatably arranged on the frame and positioned on one side of the sub-sieve plate along the first direction, and more than two groups of first pressing rollers and more than two groups of second pressing rollers are arranged in a vertically staggered manner along the first direction; the second guide rollers are rotatably arranged on the rack and positioned on one side of the second press roller along the first direction, more than two groups of second guide rollers are arranged at intervals along the first direction, the rack is provided with an upright post, the upright post is provided with a lifting groove, the second guide rollers are in sliding connection with the lifting groove through a lifting bearing, the cam is rotatably arranged on the rack, the cam is supported at the bottom of the lifting bearing, the servo motor is arranged on the rack, and the servo motor drives the cam to rotate through a gear chain assembly; the third press roller and the fourth press roller are rotatably arranged on the frame and are positioned on one side of the second guide roller along the first direction, and more than two groups of the third press rollers and more than two groups of the fourth press rollers are arranged in a vertically staggered manner along the first direction; more than two groups of annular grooves for positioning the plastic strips are formed in the surfaces of the first pressing roller, the second pressing roller, the third pressing roller and the fourth pressing roller;

the drying mechanism comprises an air heater, the air heater is arranged on the rack and is positioned vertically above the second guide roller, and an air outlet of the air heater faces the second guide roller.

Preferably, the sub-sieve plate is arranged from one end close to the draining roller to the other end in an inclined and upward mode, and the included angle between the sub-sieve plate and the horizontal plane ranges from 11 degrees to 29 degrees.

Preferably, the pressure angles of any two adjacent sets of said cams are unequal.

Preferably, the surfaces of the draining roller and the sieve separating plate are both provided with organic fluorine compound hydrophobic layers.

Preferably, the number of the groups of the first press roll, the second press roll, the third press roll and the fourth press roll is two.

Preferably, the surfaces of the first pressing roller, the second pressing roller, the third pressing roller and the fourth pressing roller are all provided with rubber layers.

Preferably, the side wall of the water cooling tank is respectively provided with a water inlet pipe and a water outlet pipe which are communicated with the inner cavity of the water cooling tank.

Preferably, the water-cooling mechanism still includes first cylinder, first cylinder setting is in the frame, the both ends of waterlogging caused by excessive rainfall roller are all rotated and are connected with the mount pad, the pneumatic rod and the mount pad of first cylinder are connected.

Preferably, the screening mechanism further comprises a second cylinder and a third cylinder which are respectively arranged on the rack, the second cylinder is rotatably connected with the second pressing roller, and the third cylinder is rotatably connected with the fourth pressing roller.

Preferably, the servo motor, the hot air blower, the first cylinder, the second cylinder and the third cylinder are all connected with a power supply.

The plastic molding cooling and drying device has the beneficial effects that: the machine frame is respectively provided with a water cooling mechanism, a screening mechanism and a drying mechanism, in the use process, plastic strips firstly pass through a separation roller, under the separation action of a U-shaped groove, high-temperature plastic strips are separated and independent, the problems of overlapping and bonding and the like are avoided, the U-shaped groove can keep the structural stability of the extruded plastic strips, the separated and independent plastic strips pass through a first guide roller, and are guided and conveyed under the action of an annular positioning groove arranged on the surface of the first guide roller, the section shape of the annular positioning groove is designed to be semicircular, the friction force among the first guide roller, the plastic strips and cooling water can be reduced, the energy consumption in the conveying process is reduced, and then the plastic strips are conveyed to the screening mechanism through a draining roller, the draining roller is provided with an annular draining groove with an isosceles trapezoid cross section, and the annular draining groove has a good flow guide function while positioning the plastic strips; then, the plastic strips after preliminary draining enter the screening plate, when the plastic strips pass through the channel for fin plate quality inspection, because the width of the channel in a second direction perpendicular to the first direction is gradually reduced along the first direction, cooling water on the surfaces of the plastic strips can be further led out along the channel, the plastic strips after secondary draining pass through a gap between the first compression roller and the second compression roller and then are conveyed by the second guide roller, a servo motor is started, the servo motor drives a cam to rotate through a gear chain component, the cam enables a lifting bearing to do reciprocating lifting motion in the rotating process, so that the second guide roller is lifted and fallen back in the vertical direction, in the process, the plastic strips conveyed on the second guide roller can generate vibration, and meanwhile, hot air is blown to the second guide roller by matching with a hot air blower, and the vibration and the hot air can enable residual cooling water on the surfaces of the plastic strips to quickly separate from the plastic strips, thereby improve the aridity on plastic strip surface fast, the plastic strip after above-mentioned vibrations dehydration hot-blast stoving operation passes the clearance between third compression roller and fourth compression roller, transport to cutting mechanism, first compression roller, the second compression roller, the surface of third compression roller and fourth compression roller all is equipped with the ring channel, above-mentioned compression roller restricts the vibrations of plastic strip at first compression roller and fourth compression roller, can not produce great influence to the plastic strip before the first compression roller and after the fourth compression roller promptly, first compression roller, the second compression roller, the transport inefficacy problem that the plastic strip arouses because the surface glues can be solved to third compression roller and fourth compression roller, and after the plastic strip after the fourth compression roller is carried is cut off, provide certain tension for the plastic strip in order to prevent to carry the problem that the inefficacy emergence is rewound. The plastic molding cooling and drying device provided by the invention improves the dryness of the surface of the plastic strip under the action of multi-stage draining, improves the drying quality and efficiency of the plastic strip by matching with the vibration hot air drying operation of the plastic strip, and is easy to popularize.

Drawings

FIG. 1: the structure schematic diagram of the plastic molding cooling drying device of the embodiment of the invention;

FIG. 2: the plastic molding cooling and drying device comprises a local enlarged view;

description of reference numerals:

1-a frame; 11-upright post; 12-a lifting groove;

2-a water cooling mechanism; 21-a water cooling tank; 22-a separation roller; 221-U-shaped groove; 23-a first guide roll; 231-annular positioning grooves; 24-draining roller; 241-annular draining tank; 25-a first cylinder;

3-screening mechanism; 31-separating sieve plate; 311-fins; 32-a first press roll; 33-a second press roll; 34-a second guide roll; 35-a lifting bearing; 36-a cam; 37-a servo motor; 38-a gear chain assembly; 39-third press roll; 310-a fourth press roll; 3101-an annular groove; 3102-a second cylinder; 3103-a third cylinder;

4-a drying mechanism; 41-air heater.

Detailed Description

For a more clear presentation, the invention is described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the plastic molding cooling and drying device comprises a frame, and a water cooling mechanism, a screening mechanism and a drying mechanism which are respectively arranged on the frame, wherein the water cooling mechanism and the screening mechanism are sequentially arranged on the frame along a first direction;

the water cooling mechanism comprises a water cooling box, a separation roller, a first guide roller and a draining roller, the water cooling box is arranged on one side of the machine, the water cooling box is hollow and is provided with an opening at the top, and cooling water is filled in the water cooling box; the separation roller, the first guide roller and the draining roller are rotatably arranged on the water cooling tank in sequence along a first direction, the separation roller, the first guide roller and the draining roller are all perpendicular to the first direction, the separation roller and the draining roller are all located above the liquid level of cooling water, and the first guide roller is located below the liquid level of the cooling water; the surface of the separation roller is provided with U-shaped grooves along the circumferential direction, and more than two groups of U-shaped grooves are arranged at intervals along the axial direction of the separation roller; the surface of the first guide roller is provided with annular positioning grooves, more than two groups of annular positioning grooves are arranged at intervals along the axial direction of the first guide roller, and the cross section of each annular positioning groove is semicircular; the surface of the draining roller is provided with annular draining grooves along the circumferential direction, more than two groups of annular draining grooves are arranged at intervals along the axial direction of the draining roller, and the cross section of each annular draining groove is in an isosceles trapezoid shape;

the screening mechanism comprises a screening plate, a first pressing roller, a second guide roller, a lifting bearing, a cam, a servo motor, a gear chain assembly, a third pressing roller and a fourth pressing roller, wherein the screening plate is arranged on the frame and is positioned on one side of the draining roller along the first direction, more than two groups of fin plates for separating plastic strips are arranged on the screening plate, any two adjacent fin plates surround a channel for the plastic strips to pass through, and the width of the channel in the second direction perpendicular to the first direction is gradually reduced along the first direction; the first pressing roller and the second pressing roller are both rotatably arranged on the frame and positioned on one side of the sub-sieve plate along the first direction, and more than two groups of first pressing rollers and more than two groups of second pressing rollers are arranged in a vertically staggered manner along the first direction; the second guide rollers are rotatably arranged on the rack and positioned on one side of the second press roller along the first direction, more than two groups of second guide rollers are arranged at intervals along the first direction, the rack is provided with an upright post, the upright post is provided with a lifting groove, the second guide rollers are in sliding connection with the lifting groove through a lifting bearing, the cam is rotatably arranged on the rack, the cam is supported at the bottom of the lifting bearing, the servo motor is arranged on the rack, and the servo motor drives the cam to rotate through a gear chain assembly; the third press roller and the fourth press roller are rotatably arranged on the frame and are positioned on one side of the second guide roller along the first direction, and more than two groups of the third press rollers and more than two groups of the fourth press rollers are arranged in a vertically staggered manner along the first direction; more than two groups of annular grooves for positioning the plastic strips are formed in the surfaces of the first pressing roller, the second pressing roller, the third pressing roller and the fourth pressing roller;

the drying mechanism comprises an air heater, the air heater is arranged on the rack and is positioned vertically above the second guide roller, and an air outlet of the air heater faces the second guide roller.

As can be seen from the above description, the rack is respectively provided with the water cooling mechanism, the screening mechanism and the drying mechanism, and in the using process, the plastic strips firstly pass through the separating roller, under the separation action of the U-shaped groove, the high-temperature plastic strips are separated and independent, the problems of overlapping and bonding and the like are avoided, the U-shaped groove can keep the structural stability of the extruded plastic strips, the separated and independent plastic strips pass through the first guide roller, under the action of the annular positioning groove arranged on the surface of the first guide roller, the conveying is guided, the section shape of the annular positioning groove is designed to be semicircular, can reduce the friction among the first guide roller, the plastic strip and the cooling water, reduce the energy consumption in the conveying process, then the plastic strips are conveyed to a screening mechanism through a draining roller, an annular draining groove with an isosceles trapezoid cross section is arranged on the draining roller, and the annular draining groove has a good flow guiding function while positioning the plastic strips; then, the plastic strips after preliminary draining enter the screening plate, when the plastic strips pass through the channel for fin plate quality inspection, because the width of the channel in a second direction perpendicular to the first direction is gradually reduced along the first direction, cooling water on the surfaces of the plastic strips can be further led out along the channel, the plastic strips after secondary draining pass through a gap between the first compression roller and the second compression roller and then are conveyed by the second guide roller, a servo motor is started, the servo motor drives a cam to rotate through a gear chain component, the cam enables a lifting bearing to do reciprocating lifting motion in the rotating process, so that the second guide roller is lifted and fallen back in the vertical direction, in the process, the plastic strips conveyed on the second guide roller can generate vibration, and meanwhile, hot air is blown to the second guide roller by matching with a hot air blower, and the vibration and the hot air can enable residual cooling water on the surfaces of the plastic strips to quickly separate from the plastic strips, thereby improve the aridity on plastic strip surface fast, the plastic strip after above-mentioned vibrations dehydration hot-blast stoving operation passes the clearance between third compression roller and fourth compression roller, transport to cutting mechanism, first compression roller, the second compression roller, the surface of third compression roller and fourth compression roller all is equipped with the ring channel, above-mentioned compression roller restricts the vibrations of plastic strip at first compression roller and fourth compression roller, can not produce great influence to the plastic strip before the first compression roller and after the fourth compression roller promptly, first compression roller, the second compression roller, the transport inefficacy problem that the plastic strip arouses because the surface glues can be solved to third compression roller and fourth compression roller, and after the plastic strip after the fourth compression roller is carried is cut off, provide certain tension for the plastic strip in order to prevent to carry the problem that the inefficacy emergence is rewound.

Optionally, the sub-sieve plate is arranged from one end close to the draining roller to the other end in an inclined and upward manner, and the included angle between the sub-sieve plate and the horizontal plane ranges from 11 degrees to 29 degrees.

As can be known from the description, the screening plate adopts an inclined design structure, so that the cooling water diversion on the surface of the plastic strip is facilitated, the cooling water diversion is controlled to enter the cold water pool, and the waste of the cooling water is reduced while the drying efficiency is improved.

Optionally, the pressure angles of any two adjacent sets of cams are not equal.

From the above description, the pressure angles of any two groups of adjacent cams are designed to be unequal, so that the lifting frequencies of any two groups of adjacent second guide rollers are different, and the vibration dewatering effect of the plastic strips conveyed on the guide rollers is further improved.

Optionally, the surfaces of the draining roller and the sieve plate are both provided with organic fluorine compound hydrophobic layers.

From the above description, the hydrophobic layer of the organic fluorine compound functions to reduce the frictional resistance of water flow and improve the draining effect.

Optionally, the number of the first press roll, the second press roll, the third press roll and the fourth press roll is two.

As can be seen from the above description, the group number of the first compression roller, the second compression roller, the third compression roller and the fourth compression roller is two, and the plastic strip conveying resistance is controlled within a reasonable interval range while certain tension is ensured after the plastic strip is cut off, so that the problems of production quality and energy consumption are balanced.

Optionally, the surfaces of the first press roller, the second press roller, the third press roller and the fourth press roller are all provided with rubber layers.

It can be known from the above description that the rubber layer plays the absorbing effect, prevents that the vibrations of plastic strip on the second carry over pinch rolls from influencing the plastic strip before the first compression roller and after the fourth compression roller, has improved coefficient of friction simultaneously, avoids the plastic strip to take place to skid, the phenomenon that breaks away from in transportation process.

Optionally, a water inlet pipe and a water outlet pipe communicated with the inner cavity of the water cooling tank are respectively arranged on the side wall of the water cooling tank.

From the above description, the outlet pipe can be arranged on the upper part of the water cooling tank, so that the hot water after heat exchange with the high-temperature plastic strip can be conveniently led out, and the inlet pipe can be arranged on the lower part of the water cooling tank and used for introducing low-temperature cooling water, so that the cooling efficiency of the plastic strip is improved.

Optionally, the water-cooling mechanism still includes first cylinder, first cylinder setting is in the frame, the both ends of waterlogging caused by excessive rainfall roller are all rotated and are connected with the mount pad, the pneumatic rod and the mount pad of first cylinder are connected.

As can be seen from the above description, the first cylinder is used to control the elevation of the mounting base, thereby adjusting the horizontal height of the draining roller.

Optionally, the screening mechanism further comprises a second cylinder and a third cylinder which are respectively arranged on the frame, the second cylinder is rotatably connected with the second pressing roller, and the third cylinder is rotatably connected with the fourth pressing roller.

From the above description, the second and third cylinders are used to control the lifting of the press roll, thereby realizing the surface tension control of the plastic strip.

Optionally, the servo motor, the air heater, the first cylinder, the second cylinder and the third cylinder are all connected with a power supply.

Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: a plastic molding cooling and drying device comprises a rack 1, and a water cooling mechanism 2, a screening mechanism 3 and a drying mechanism 4 which are respectively arranged on the rack 1, wherein the water cooling mechanism 2 and the screening mechanism 3 are sequentially arranged on the rack 1 along a first direction;

the water cooling mechanism 2 comprises a water cooling tank 21, a separation roller 22, a first guide roller 23 and a draining roller 24, the water cooling tank 21 is arranged on one side of the machine, the interior of the water cooling tank 21 is hollow and is provided with an opening at the top, and cooling water is filled in the water cooling tank 21; the separation roller 22, the first guide roller 23 and the draining roller 24 are rotatably arranged on the water cooling tank 21 along a first direction in sequence, the separation roller 22, the first guide roller 23 and the draining roller 24 are all perpendicular to the first direction, the separation roller 22 and the draining roller 24 are both positioned above the liquid level of the cooling water, and the first guide roller 23 is positioned below the liquid level of the cooling water; the surface of the separation roller 22 is provided with U-shaped grooves 221 along the circumferential direction, and more than two groups of U-shaped grooves 221 are arranged at intervals along the axial direction of the separation roller 22; the surface of the first guide roller 23 is provided with annular positioning grooves 231, more than two groups of annular positioning grooves 231 are arranged at intervals along the axial direction of the first guide roller 23, and the cross section of each annular positioning groove 231 is semicircular; the surface of the draining roller 24 is provided with annular draining grooves 241 along the circumferential direction, more than two groups of annular draining grooves 241 are arranged at intervals along the axial direction of the draining roller 24, and the cross section of each annular draining groove 241 is in an isosceles trapezoid shape;

the screening mechanism 3 comprises a screening plate 31, a first pressing roller 32, a second pressing roller 33, a second guide roller 34, a lifting bearing 35, a cam 36, a servo motor 37, a gear chain component 38, a third pressing roller 39 and a fourth pressing roller 310, the screening plate 31 is arranged on the frame 1, the screening plate 31 is positioned on one side of the draining roller 24 along a first direction, more than two groups of fin plates 311 used for separating plastic strips are arranged on the screening plate 31, a channel for the plastic strips to pass through is defined by any two adjacent fin plates 311, and the width of the channel in a second direction perpendicular to the first direction is gradually reduced along the first direction; the first pressing rollers 32 and the second pressing rollers 33 are both rotatably arranged on the frame 1 and positioned on one side of the screening plate 31 along the first direction, and more than two groups of the first pressing rollers 32 and more than two groups of the second pressing rollers 33 are arranged in a vertically staggered manner along the first direction; the second guide rollers 34 are rotatably arranged on the frame 1 and located on one side of the second press roller 33 along the first direction, more than two groups of second guide rollers 34 are arranged at intervals along the first direction, the frame 1 is provided with an upright post 11, the upright post 11 is provided with a lifting groove 12, the second guide rollers 34 are slidably connected with the lifting groove 12 through a lifting bearing 35, the cam 36 is rotatably arranged on the frame 1, the cam 36 is supported at the bottom of the lifting bearing 35, the servo motor 37 is arranged on the frame 1, and the servo motor 37 drives the cam 36 to rotate through a gear chain assembly 38; the third pressing roller 39 and the fourth pressing roller 310 are both rotatably arranged on the frame 1 and positioned on one side of the second guide roller 34 along the first direction, and more than two groups of the third pressing rollers 39 and more than two groups of the fourth pressing rollers 310 are arranged in a vertically staggered manner along the first direction; more than two groups of annular grooves 3101 for positioning the plastic strips are arranged on the surfaces of the first pressing roller 32, the second pressing roller 33, the third pressing roller 39 and the fourth pressing roller 310;

the drying mechanism 4 includes a hot air blower 41, the hot air blower 41 is disposed on the frame 1 and vertically above the second guide roller 34, and an air outlet of the hot air blower 41 faces the second guide roller 34.

The sub-sieve plate 31 is arranged from one end close to the draining roller 24 to the other end in an inclined and upward mode, and the included angle between the sub-sieve plate 31 and the horizontal plane ranges from 11 degrees to 29 degrees. The pressure angles of any two adjacent sets of the cams 36 are unequal. The surfaces of the draining roller 24 and the screening plate 31 are both provided with organic fluorine compound hydrophobic layers. The number of the groups of the first press roller 32, the second press roller 33, the third press roller 39 and the fourth press roller 310 is two. The surfaces of the first pressing roller 32, the second pressing roller 33, the third pressing roller 39 and the fourth pressing roller 310 are all provided with rubber layers. And a water inlet pipe and a water outlet pipe which are communicated with the inner cavity of the water cooling tank 21 are respectively arranged on the side wall of the water cooling tank 21. The water cooling mechanism 2 further comprises a first cylinder 25, the first cylinder 25 is arranged on the rack 1, the two ends of the draining roller 24 are connected with mounting seats in a rotating mode, and air pressure rods of the first cylinder 25 are connected with the mounting seats. The screening mechanism 3 further comprises a second cylinder 3102 and a third cylinder 3103 which are respectively arranged on the frame 1, wherein the second cylinder 3102 is rotationally connected with the second press roll 33, and the third cylinder 3103 is rotationally connected with the fourth press roll 310. The servo motor 37, the hot air blower 41, the first cylinder 25, the second cylinder 3102 and the third cylinder 3103 are all connected with a power supply.

In conclusion, the machine frame is respectively provided with the water cooling mechanism, the screening mechanism and the drying mechanism, in the using process, the plastic strips firstly pass through the separating roller, under the separation action of the U-shaped groove, the high-temperature plastic strips are separated and independent, the problems of overlapping and bonding and the like are avoided, the U-shaped groove can keep the structural stability of the extruded plastic strips, the separated and independent plastic strips pass through the first guide roller, under the action of the annular positioning groove arranged on the surface of the first guide roller, the conveying is guided, the section shape of the annular positioning groove is designed to be semicircular, can reduce the friction among the first guide roller, the plastic strip and the cooling water, reduce the energy consumption in the conveying process, then the plastic strips are conveyed to a screening mechanism through a draining roller, an annular draining groove with an isosceles trapezoid cross section is arranged on the draining roller, and the annular draining groove has a good flow guiding function while positioning the plastic strips; then, the plastic strips after preliminary draining enter the screening plate, when the plastic strips pass through the channel for fin plate quality inspection, because the width of the channel in a second direction perpendicular to the first direction is gradually reduced along the first direction, cooling water on the surfaces of the plastic strips can be further led out along the channel, the plastic strips after secondary draining pass through a gap between the first compression roller and the second compression roller and then are conveyed by the second guide roller, a servo motor is started, the servo motor drives a cam to rotate through a gear chain component, the cam enables a lifting bearing to do reciprocating lifting motion in the rotating process, so that the second guide roller is lifted and fallen back in the vertical direction, in the process, the plastic strips conveyed on the second guide roller can generate vibration, and meanwhile, hot air is blown to the second guide roller by matching with a hot air blower, and the vibration and the hot air can enable residual cooling water on the surfaces of the plastic strips to quickly separate from the plastic strips, thereby improve the aridity on plastic strip surface fast, the plastic strip after above-mentioned vibrations dehydration hot-blast stoving operation passes the clearance between third compression roller and fourth compression roller, transport to cutting mechanism, first compression roller, the second compression roller, the surface of third compression roller and fourth compression roller all is equipped with the ring channel, above-mentioned compression roller restricts the vibrations of plastic strip at first compression roller and fourth compression roller, can not produce great influence to the plastic strip before the first compression roller and after the fourth compression roller promptly, first compression roller, the second compression roller, the transport inefficacy problem that the plastic strip arouses because the surface glues can be solved to third compression roller and fourth compression roller, and after the plastic strip after the fourth compression roller is carried is cut off, provide certain tension for the plastic strip in order to prevent to carry the problem that the inefficacy emergence is rewound. The screening plate adopts an inclined design structure, cooling water diversion on the surface of the plastic strip is facilitated, the cooling water diversion is controlled to enter the cold water pool, and the waste of the cooling water is reduced while the drying efficiency is improved. The pressure angles of any two groups of adjacent cams are designed to be unequal, so that the lifting frequencies of any two groups of adjacent second guide rollers are different, and the vibration dehydration effect of the plastic strips conveyed on the guide rollers is further improved. The organic fluorine compound hydrophobic layer plays a role in reducing water flow friction resistance and improving the draining effect. The group number of the first compression roller, the second compression roller, the third compression roller and the fourth compression roller is two groups, and when the plastic strip is ensured to have certain tension after being cut off, the plastic strip conveying resistance is controlled within a reasonable interval range, so that the production quality and the energy consumption are balanced. The rubber layer plays the absorbing effect, prevents that the vibrations of plastic strip from influencing the plastic strip before the first compression roller and after the fourth compression roller on the second carry over pinch rolls, has improved coefficient of friction simultaneously, avoids the plastic strip to take place to skid, the phenomenon that breaks away from in transportation process. The outlet pipe can set up on water-cooling tank upper portion, the hot water derivation after being convenient for and the heat exchange of high temperature plastic strip, and the inlet tube can set up in the water-cooling tank lower part for let in low-temperature cooling water, thereby improve the cooling efficiency of plastic strip. The first air cylinder is used for controlling the lifting of the mounting seat, so that the horizontal height of the draining roller is adjusted. The second cylinder and the third cylinder are used for controlling the lifting of the press roller, so that the surface tension control of the plastic strip is realized. The plastic molding cooling and drying device provided by the invention improves the dryness of the surface of the plastic strip under the action of multi-stage draining, improves the drying quality and efficiency of the plastic strip by matching with the vibration hot air drying operation of the plastic strip, and is easy to popularize.

Although the present invention has been described in detail in the foregoing embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention.