CN115352021A - Extrusion die of plastic plate - Google Patents

Abstract

The invention belongs to the technical field of extrusion dies, and specifically relates to an extrusion die for plastic sheets, including an extrusion die body; one end of the extrusion die body is set as a rectangular opening, and the other end of the extrusion die body is Set as the discharge port; through the structural design of the water cooling mechanism, after the molten plastic material fills the cavity of the main body of the extrusion die, the product needs to be cooled, and part of the heat is emitted from the heat sink through the main body of the extrusion die and the heat conduction plate , to achieve preliminary heat dissipation, start the first water pump, the first water pump draws water from the water tank through the suction pipe, the water flows into the first cooling pipe and the second cooling pipe through the first L-shaped pipe and the first U-shaped pipe, the heat of the heat conduction plate It will be taken away by the water in the first cooling pipe and the second cooling pipe to achieve further heat dissipation, which solves the problem that the current extrusion mold only cools the product through air cooling, the air cooling effect is poor, and it takes a long time to cool the product. The problem of cooling the product down.

Description

Extrusion die for plastic sheet

technical field

The invention relates to the technical field of extrusion dies, in particular to an extrusion die for plastic sheets.

Background technique

Extrusion die is a kind of forming die. The discharge method of extrusion die is realized by extrusion action. The extrusion die must be installed on the extruder that is compatible with it for production. Extrusion die is suitable for the production of plastics Sheet, the working principle of the extrusion die is: the molten plastic material is injected into the extrusion die by the extruder. Due to the specific shape of the extrusion die, the extruded product can conform to the shape of the extrusion die.

According to the existing patent publication number CN114670417A described a plastic sheet extrusion die, its beneficial effect is: the present invention directly heats the plastic solution in the mold body through the first heating plate and the second heating plate, while the second The heat formed by the heating plate is dissipated into the second shell, and can also be transferred to the first shell through the air pipe to increase its heating and heat preservation effect. Through multi-faceted heating, the plastic plate in the mold body is heated more uniformly and the heating efficiency is improved. , when cooling, open the slide plate, open the sealing plate and the first cover to cool, open the exhaust fan to extract air, so that the air flow passes through the air pipe from the inside of the second housing, and then goes out from the second frame plate, and the air flow from The flow of the second shell makes the outer periphery of the mold body cool and improves its cooling effect, and opens the slide plate to directly remove the heat dissipated from the mold body to improve its cooling effect and cooling efficiency. By increasing its heating efficiency and cooling efficiency, thereby Improve processing efficiency; the present invention filters the air entering the mold body through a filter to prevent dust from entering the mold body and affecting the quality of the plastic sheet. When the filter needs to be replaced or cleaned, the pull plate is pulled to drive the movable column and The movable block moves outward, so that the insertion rod is pulled out from the fixing hole, and the buckle connected with the pull plate is snapped on the fixing ring, making it easy to disassemble the filter screen later. When the replacement is completed, open the buckle to make the insertion The rod is inserted into the fixing hole under the elastic force of the spring, and the fixing block clamps the filter screen firmly, and the installation and disassembly are convenient and fast, and the use is convenient.

According to the above-mentioned patent situation, the extrusion die of the above-mentioned patent only cools the product through air-cooling, the air-cooling effect is poor, and it takes a long time to cool the product down, which is not convenient for actual use; therefore, in view of the above-mentioned problems An extrusion die for plastic sheet is proposed.

Contents of the invention

In order to make up for the deficiencies of the existing technology, the current extrusion die only cools the product through air cooling, the air cooling effect is poor, and it takes a long time to cool the product down. The present invention proposes a plastic plate extrusion die.

The technical solution adopted by the present invention to solve the technical problem is: a plastic plate extrusion die according to the present invention, comprising an extrusion die main body; one end of the extrusion die main body is set as a rectangular mouth, and the extrusion The other end of the mold main body is set as a discharge port, the main body of the extrusion mold is connected with a feed pipe, the main body of the extrusion mold is fixedly connected with two cylinders, and the output ends of the two cylinders are fixedly connected with A horizontal plate, two baffles are fixed on the horizontal plate, and the two baffles slide through the main body of the extrusion die, and the bottom and top of the main body of the extrusion die are fixed with a heat conduction plate, and the heat conduction plate A heat sink is fixedly connected, and a water cooling mechanism is provided on the main body of the extrusion die;

The water cooling mechanism includes two L-shaped plates fixed on the bottom of the extrusion die body, one of the L-shaped plates is fixed with a first water pump, and a suction pipe is installed on the first water pump. One side of the main body of the mold is provided with a water tank, one end of the suction pipe communicates with the water tank, a first L-shaped tube is installed on the first water pump, and a first U-shaped tube is fixedly connected to one end of the first L-shaped tube. One end of the first U-shaped pipe is fixedly connected with a first cooling pipe, the other end of the first U-shaped pipe is fixedly connected with a second cooling pipe, and the first cooling pipe is fixedly connected with the second cooling pipe On the heat conduction plate, one end of the first cooling pipe and one end of the second cooling pipe are affixed with a second U-shaped pipe, and a second L-shaped pipe is affixed to the second U-shaped pipe, and the other said A second water pump is fixedly connected to the L-shaped plate, the second L-shaped pipe is fixedly installed on the second water pump, and a water inlet pipe is installed on the second water pump; heat can be dissipated from the heat sink by setting the heat sink , by arranging the first cooling pipe and the second cooling pipe, the water flowing through the first cooling pipe and the second cooling pipe can take away the heat from the heat conducting plate to realize rapid heat dissipation.

Preferably, a cooling assembly is provided in the water tank, and the cooling assembly includes a horizontal tube fixedly connected to the water inlet pipe, the horizontal tube is located in the water tank, an atomizing nozzle is installed on the horizontal tube, and the horizontal tube is installed on the water tank. A first heat dissipation plate is fixedly connected, a second heat dissipation plate is fixedly connected to the water tank, the atomizing nozzle is directly facing the first heat dissipation plate, and two first inclined plates are fixedly connected to the first heat dissipation plate, so Two second slant plates are fixedly connected to the second radiating plate, and the two first slant plates and the two second slant plates are arranged alternately. By setting the atomizing nozzle, the water can be atomized and sprayed, increasing the The contact area between water and air makes the water cool down. By setting the first heat dissipation plate, the second heat dissipation plate, the first inclined plate and the second inclined plate, the water flows along the first heat dissipation plate, the first inclined plate and the second inclined plate It flows down and transfers the heat to the first heat dissipation plate and the second heat dissipation plate to realize rapid cooling of the water.

Preferably, the water tank is provided with an air-cooled assembly, the air-cooled assembly includes four fixed columns fixed on the water tank, fans are fixedly connected to one end of the four fixed columns, and the fans are fixedly connected to An air collecting hood, a connection pipe is fixedly connected to the air collecting hood, and two first air outlet shells are fixedly connected to the connecting pipe through the fixing pipe, and the two first air outlet shells are respectively facing the first cooling pipe and the second cooling pipe, the first air outlet shell is provided with a first air outlet hole, and by setting the first air outlet shell, the heat can be blown to the cooling fins to blow away the heat.

Preferably, a second air outlet shell is fixedly connected to the connecting pipe through a fixing pipe, the second air outlet shell is facing the first heat dissipation plate and the second heat dissipation plate, and a second air outlet shell is provided on the second air outlet shell. The second air outlet hole, by setting the second air outlet shell, can blow air to the first heat dissipation plate and the second heat dissipation plate to blow away the heat.

Preferably, two heating plates are embedded in the main body of the extrusion die, and the heating plates are used to heat the material. By setting the heating plates, the molten plastic material can be prevented from cooling and solidifying prematurely.

Preferably, the main body of the extrusion die is provided with two limiting openings, and the baffle plate slides through the limiting openings. By setting the limiting openings, the movement of the baffle plate can be limited.

Preferably, a push plate is provided inside the extrusion die body, and the outer wall of the push plate is in contact with the inner wall of the extrusion die body. By setting the push plate, the product can be pushed out of the extrusion die body from the discharge port.

Preferably, the heat sink is provided with a first heat dissipation hole, and the first heat dissipation plate and the second heat dissipation plate are provided with a second heat dissipation hole. By setting the first heat dissipation hole and the second heat dissipation hole, the heat dissipation fin can be enlarged. , The contact area between the first heat dissipation plate and the second heat dissipation plate and the air enhances the heat dissipation effect.

Preferably, the heat sink is directly opposite to the middle position of two adjacent first air outlets, and the second air outlet is directly opposite to the second heat dissipation hole. The middle position of the hole can make the wind blown out of the first air outlet hole take away the heat around the heat sink, and by setting the second air outlet hole to face the second heat dissipation hole, the wind blown out of the second air outlet hole can take away the heat around the heat sink. The heat dissipated by the second cooling hole is carried away.

Preferably, a cavity is formed between the main body of the extrusion die and the two baffles, and the cavity is used to shape the hot-melt plastic material, and the hot-melt plastic material can be shaped by setting the cavity.

The benefits of the present invention are:

1. The present invention adopts the structural design of the water-cooling mechanism. After the molten plastic material fills the cavity of the main body of the extrusion die, the product needs to be cooled, and part of the heat is emitted from the heat sink through the main body of the extrusion die and the heat conducting plate to realize Preliminary heat dissipation, start the first water pump, the first water pump draws water from the water tank through the suction pipe, the water flows into the first cooling pipe and the second cooling pipe through the first L-shaped pipe and the first U-shaped pipe, the heat of the heat conduction plate will be The water in the first cooling pipe and the second cooling pipe is taken away to achieve further heat dissipation, which solves the problem that the current extrusion die only cools the product through air cooling, the air cooling effect is poor, and it takes a long time to cool the product The problem of cooling down improves the heat dissipation efficiency of the extrusion die;

2. In the present invention, through the structural design of the cooling component, the temperature of the water flowing through the first cooling pipe and the second cooling pipe increases, and the water is sent to the atomizing nozzle by the second water pump through the water inlet pipe and the horizontal pipe, and the water is atomized spraying, spraying water on the first cooling plate, the water flows down along the first cooling plate, the first inclined plate and the second inclined plate, the heat of the water is transferred to the first cooling plate and the second cooling plate, and the second The cooling plate dissipates the heat, so that the temperature of the water drops rapidly, realizing the function of cooling the cooling water, so that the cooling water can be recycled.

3. The present invention starts the fan through the structural design of the air-cooled assembly, and the fan blows into the wind collecting hood, and the wind blows to the first air outlet shell and the second air outlet shell through the connecting pipe, and the wind is blown out from the first air outlet hole. The wind blows to the heat sink to blow away the heat emitted by the heat sink to prevent the heat from accumulating around the heat sink. The wind also blows out from the second air outlet hole of the second air outlet shell and blows to the first heat sink and the second heat sink. The plate removes the heat of the cooling water, realizes the function of combining air cooling and water cooling, and improves the heat dissipation efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the overall structure schematic diagram of embodiment one;

Fig. 2 is the schematic diagram of the water-cooling mechanism of embodiment one;

Fig. 3 is the schematic cross-sectional view of the water tank of embodiment one;

Fig. 4 is the schematic diagram of the air-cooled assembly of embodiment one;

Fig. 5 is a schematic structural diagram of the second air outlet shell of Embodiment 1;

Fig. 6 is a schematic cross-sectional view of an extrusion die in Example 1;

Fig. 7 is the three-dimensional structure schematic diagram of embodiment two;

Fig. 8 is a schematic diagram of the detection component of the second embodiment.

In the figure: 1. Extrusion mold body; 2. Rectangular mouth; 3. Outlet; 4. Feed pipe; 5. Cylinder; 6. Horizontal plate; 7. Baffle; 8. Heat conduction plate; 9. Radiator ; 10, L-shaped plate; 11, the first water pump; 12, suction pipe; 13, water tank; 14, the first L-shaped pipe; 15, the first U-shaped pipe; 16, the first cooling pipe; 17, the second cooling 18, the second U-shaped pipe; 19, the second L-shaped pipe; 20, the second water pump; 21, the water inlet pipe; 22, the horizontal pipe; 23, the atomizing nozzle; 24, the first cooling plate; 25, the first Two cooling plates; 26, the first inclined plate; 27, the second inclined plate; 28, the fixed column; 29, the fan; 30, the wind collecting hood; 31, the connecting pipe; Air outlet; 34, second air outlet shell; 35, second air outlet; 36, heating plate; 37, limit port; 38, push plate; 39, first cooling hole; 40, second cooling hole; 41, connecting column; 42, flat plate; 43, pressure sensor; 44, moving column; 45, circular plate; 46, spring; 47, round block; 48, circular groove.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

Please refer to Fig. 1-shown in Fig. 6, a kind of extrusion die of plastic plate comprises extrusion die main body 1; One end of described extrusion die main body 1 is set as rectangular mouth 2, and rectangular mouth 2 can make external drive equipment The output end passes through, so that the external drive device can drive the push plate 38, and the other end of the extrusion die body 1 is set as the discharge port 3, and the discharge port 3 is used to discharge the molded product out of the extrusion die body 1. The main body 1 of the extrusion die is connected with a feed pipe 4, and the feed pipe 4 is connected with an external extruder to inject molten plastic material into the main body 1 of the extrusion die. The main body 1 of the extrusion die is fixedly connected with two A cylinder 5, the output ends of the two cylinders 5 are fixedly connected with a horizontal plate 6, and the horizontal plate 6 is fixedly connected with two baffles 7, the baffles 7 are used to prevent the molten material from flowing out, and the two baffles are fixed. The plate 7 slides through the main body 1 of the extrusion die, and the bottom and top of the main body 1 of the extrusion die are fixed with a heat conduction plate 8, and the heat conduction plate 8 is used to transfer the heat of the molten material to the heat sink 9, and the heat conduction plate 8 is A heat sink 9 is fixedly connected, and the heat sink 9 is used to dissipate the heat transferred by the heat conduction plate 8, and the extrusion die main body 1 is provided with a water cooling mechanism;

The water-cooling mechanism includes two L-shaped plates 10 fixed on the bottom of the extrusion die main body 1, one of the L-shaped plates 10 is fixed with a first water pump 11, and the first water pump 11 is used to transfer the water in the water tank 13 The water is drawn out, the first water pump 11 is equipped with a water pump 12, one side of the extrusion die main body 1 is provided with a water tank 13, one end of the water pump 12 communicates with the water tank 13, the first water pump 11 A first L-shaped tube 14 is installed on the top, and one end of the first L-shaped tube 14 is fixedly connected with a first U-shaped tube 15, and one end of the first U-shaped tube 15 is fixedly connected with a first cooling pipe 16, so The other end of the first U-shaped pipe 15 is fixedly connected with a second cooling pipe 17, and the first cooling pipe 16 and the second cooling pipe 17 are fixedly connected on the heat conducting plate 8, and the first cooling pipe 16 and the second cooling pipe 17 is used to take away the heat from the heat conduction plate 8, one end of the first cooling pipe 16 and one end of the second cooling pipe 17 are fixedly connected with a second U-shaped pipe 18, and the second U-shaped pipe 18 is fixedly connected with There is a second L-shaped pipe 19, and a second water pump 20 is fixedly connected to the other L-shaped plate 10, and the second water pump 20 is used to pump the water in the first cooling pipe 16 and the second cooling pipe 17 into the water tank 13 , forming a cycle, the second L-shaped pipe 19 is fixedly installed on the second water pump 20, and the second water pump 20 is equipped with a water inlet pipe 21;

During work, when it is necessary to inject hot-melt plastic material into the extrusion mold body 1, the baffle plate 7 is in the lowest position state, and a cavity is formed between the two baffle plates 7 and the extrusion mold body 1, through which the external extruder Inject the hot-melt plastic material into the extrusion mold main body 1 through the feed pipe 4, and the hot-melt material fills the cavity. During this process, open the two heating plates 36 to make the hot-melt material fill the cavity It will not solidify prematurely during the process. After the cavity is filled, the heating plate 36 is turned off, and the material in the cavity needs to be cooled to make it form rapidly. The heat of the material is transferred to the Heat sink 9, part of the heat is emitted from the heat sink 9 and the first heat dissipation hole 39 to realize preliminary heat dissipation, and the first water pump 11 and the second water pump 20 are started at the same time, and the first water pump 11 can be drawn from the water tank 13 through the suction pipe 12. Water is extracted, and water flows into the first cooling pipe 16 and the second cooling pipe 17 through the first L-shaped pipe 14 and the first U-shaped pipe 15, and the heat of the heat conducting plate 8 will be flowed through the first cooling pipe 16 and the second cooling pipe. The water in the tube 17 is taken away to realize further heat dissipation, so that the overall heat dissipation effect is better. After the cooling is completed, the product is cooled and shaped, and the cylinder 5 is started. The cylinder 5 drives the horizontal plate 6 to move upward, and the horizontal plate 6 drives the baffle 7 to move upward. , the push plate 38 is driven to move by an external drive device, and the push plate 38 can push the product out from the discharge port 3 .

The water tank 13 is provided with a cooling assembly, the cooling assembly includes a horizontal tube 22 fixedly connected to the water inlet pipe 21, the horizontal tube 22 is located in the water tank 13, and an atomizing nozzle 23 is installed on the horizontal tube 22, The atomizing nozzle 23 is facing the first cooling plate 24, and the atomizing nozzle 23 can spray the water into mist. The first cooling plate 24 is fixedly connected to the water tank 13, and the second The heat dissipation plate 25, the first heat dissipation plate 24 and the second heat dissipation plate 25 can dissipate the heat of the water. The atomizing nozzle 23 is facing the first heat dissipation plate 24, and two A first slant plate 26, two second slant plates 27 are fixedly connected to the second heat dissipation plate 25, the two first slant plates 26 and the two second slant plates 27 are alternately arranged, the water will flow along The first inclined plate 26 and the second inclined plate 27 flow down;

During operation, when the water flows out of the first cooling pipe 16 and the second cooling pipe 17, the temperature of the water will increase, and the water flowing out of the first cooling pipe 16 and the second cooling pipe 17 is passed through the water inlet pipe 21 by the second water pump 20 And the horizontal pipe 22 is sent into the water tank 13, the water is sprayed from the atomizing nozzle 23, and the water is sprayed to the first heat dissipation plate 24, and the water will flow along the first heat dissipation plate 24, the first inclined plate 26 and the second inclined plate 27 flowing down, in the process of flowing down, the heat of water will be transferred to the first heat dissipation plate 24 and the second heat dissipation plate 25, and the first heat dissipation plate 24 and the second heat dissipation plate 25 will dissipate the heat through the second heat dissipation holes 40 to realize The temperature of the cooling water is lowered so that the water can circulate and continue to be pumped away by the first water pump 11 .

The water tank 13 is provided with an air-cooled assembly, and the air-cooled assembly includes four fixed columns 28 fixedly connected to the water tank 13, and a fan 29 is fixedly connected to one end of the four fixed columns 28, and the fan 29 can flow to the set. Air is blown in the wind cover 30, the fan 29 is fixedly connected with a wind collecting cover 30, and the described wind collecting cover 30 is fixedly connected with a connecting pipe 31, and the connecting pipe 31 is fixedly connected with two first outlets through the fixing pipe. Wind shell 32, wind can be blown out from two first air outlet shells 32, and two described first air outlet shells 32 are opposite to first cooling pipe 16 and second cooling pipe 17 respectively, and described first air outlet shell 32 A first air outlet hole 33 is opened on the top, and the wind blown out by the first air outlet hole 33 will blow to both sides of the heat sink 9;

During work, when further heat dissipation is needed, start the fan 29, and the fan 29 blows air in the wind collecting cover 30, and the wind blows to the two first air outlet shells 32 through the connecting pipe 31, and the wind blows from the first air outlet shell 32 of the first air outlet shell 32. The air blows out from the air outlet hole 33 and blows toward the heat sink 9 to blow away the heat dissipated by the heat sink 9 and the first heat dissipation hole 39 to prevent heat from accumulating around the heat sink 9 .

The connecting pipe 31 is fixedly connected with a second air outlet case 34 through a fixed pipe, and the second air outlet case 34 is facing the first heat dissipation plate 24 and the second heat dissipation plate 25, and the second air outlet case 34 is A second air outlet hole 35 is provided;

During work, when the wind blows to the cooling fins 9, the wind will also blow out from the second air outlet shell 34, and the wind will blow out from the second air outlet hole 35, and the first cooling plate 24, the second cooling plate 25 and the second cooling plate will be blown out. The heat dissipated by the heat dissipation holes 40 is blown away to prevent heat from accumulating around the first heat dissipation plate 24 and the second heat dissipation plate 25, realizing the combination of air cooling and water cooling to achieve better heat dissipation effect.

Two heating plates 36 are embedded in the extrusion die main body 1, and the heating plates 36 are used to heat the material;

When working, by setting the heating plate 36, when the material is injected into the cavity, the two heating plates 36 are turned on, so that the hot-melt material will not solidify prematurely in the process of filling the cavity, and after filling the cavity, turn off Heating plate 36.

The main body 1 of the extrusion die is provided with two limiting openings 37, and the baffle plate 7 slides through the limiting openings 37;

During operation, during the movement of the baffle 7 , the baffle 7 slides in the limiting opening 37 to limit the baffle 7 in the vertical direction.

The extrusion die main body 1 is provided with a push plate 38, the outer wall of the push plate 38 is in contact with the inner wall of the extrusion die main body 1;

When working, the push plate 38 is driven by an external driving device, and the cooled and formed product can be pushed out of the extrusion die body 1 from the discharge port 3, and the push plate 38 can also scrape off the material attached to the inner wall of the extrusion die body 1 .

The heat sink 9 is provided with a first heat dissipation hole 39, and the first heat dissipation plate 24 and the second heat dissipation plate 25 are provided with a second heat dissipation hole 40;

During operation, by providing the first heat dissipation holes 39 and the second heat dissipation holes 40, the areas of the heat dissipation fins 9, the first heat dissipation plate 24 and the second heat dissipation plate 25 in contact with the air can be increased to achieve a better heat dissipation effect.

The heat sink 9 is directly opposite to the middle position of two adjacent first air outlet holes 33 , and the second air outlet hole 35 is directly opposite to the second heat dissipation hole 40 ;

During work, by arranging the heat sink 9 just opposite to the middle position of the two adjacent first air outlet holes 33, the wind blown out by the first air outlet holes 33 can take away the heat around the heat sink 9, and by setting the second air outlet The air hole 35 is facing the second heat dissipation hole 40 , so that the wind blown out from the second air outlet hole 35 can take away the heat dissipated by the second heat dissipation hole 40 .

A cavity is formed between the extrusion die main body 1 and the two baffles 7, and the cavity is used to shape the hot-melt plastic material;

During operation, during the process of injecting the hot-melt material, the cavity can shape the hot-melt plastic material into a plate shape.

Embodiment two

Please refer to Figure 7 and Figure 8, Comparative Example 1, as another embodiment of the present invention, the extrusion die body 1 is provided with a detection component, and the detection component includes 1, the tops of the four adjacent connecting columns 41 are fixedly connected with flat plates 42, and the bottoms of the flat plates 42 are fixed with pressure sensors 43, and the extrusion die body 1 is slidably inserted There is a moving column 44, the top of the moving column 44 is fixed with a circular plate 45, the top of the circular plate 45 is extruded with the pressure sensor 43, the bottom of the circular plate 45 and the top of the extrusion die main body 1 A spring 46 is fixedly connected, and the spring 46 is sleeved on the outside of the moving column 44. The bottom end of the moving column 44 is fixedly connected with a round block 47, and the top inner wall of the extrusion die main body 1 is provided with two round blocks. The round groove 48 that block 47 is matched, and described round block 47 is slidably connected in the round groove 48; During work, when molten plastic material fills up the mold cavity process, the position that material fills up mold cavity at last is with feed pipe 4 The two farthest corners, when the material fills the cavity, the material will press the round block 47 to move upward, the round block 47 drives the moving column 44 to move upward, the spring 46 is compressed, and the upward movement of the circular plate 45 presses the pressure sensor 43, the pressure The sensor 43 generates a value. When the value of the pressure sensor 43 reaches a certain value, it means that the material has filled the cavity, the round block 47 has completely entered the circular groove 48, and the bottom of the round block 47 is flush with the top inner wall of the extrusion die body 1 .

Working principle: When in use, when hot-melt plastic material needs to be injected into the main body 1 of the extrusion mold, the baffle 7 is at the lowest position, and a cavity is formed between the two baffles 7 and the main body 1 of the extrusion mold. The extruder injects hot-melt plastic material into the extrusion mold main body 1 through the feed pipe 4, and the hot-melt material fills the cavity. During this process, two heating plates 36 are turned on to make the hot-melt material The process of filling the cavity will not solidify prematurely. After filling the cavity, turn off the heating plate 36 to cool the material in the cavity so that it can be quickly formed. The heat of the material passes through the extrusion mold body 1 and the heat conduction plate 8 to the cooling fins 9, part of the heat is dissipated from the cooling fins 9 and the first cooling holes 39 to achieve preliminary heat dissipation, and at the same time start the first water pump 11 and the second water pump 20, the first water pump 11 can pass through the suction pipe 12 from the Water is extracted in the water tank 13, and the water flows into the first cooling pipe 16 and the second cooling pipe 17 through the first L-shaped pipe 14 and the first U-shaped pipe 15, and the heat of the heat conducting plate 8 will be flowed through the first cooling pipe 16 and the second cooling pipe 17. The water in the second cooling pipe 17 is taken away to realize further heat dissipation, so that the overall heat dissipation effect is better. The water in the cooling pipe 17 is sent into the water tank 13 by the second water pump 20 through the water inlet pipe 21 and the horizontal pipe 22, the water is sprayed from the atomizing nozzle 23, and the water is sprayed to the first cooling plate 24, and the water will flow along the first Radiating plate 24, first slanting plate 26 and second slanting plate 27 flow down, and in the process of flowing down, the heat of water can be transferred on the first radiating plate 24 and the second radiating plate 25, and the first radiating plate 24 and the second radiating plate The plate 25 dissipates the heat through the second cooling holes 40 to cool down the cooling water so that the water can circulate and continue to be pumped away by the first water pump 11. At the same time, the fan 29 is started, and the fan 29 blows air into the wind collecting hood 30. The wind blows to the two first air outlet shells 32 through the connecting pipe 31, and the wind blows out from the first air outlet holes 33 of the first air outlet shell 32, and blows to the cooling fins 9, so that the cooling fins 9 and the first cooling holes 39 Distributed heat is blown away to prevent heat from accumulating around the heat sink 9, and the wind will also blow out from the second air outlet shell 34, and the wind will blow out from the second air outlet hole 35, and the first heat dissipation plate 24, the second heat dissipation plate 25 and the first heat dissipation plate 24 will be blown out. The heat dissipated by the second heat dissipation hole 40 is blown away to prevent heat from accumulating around the first heat dissipation plate 24 and the second heat dissipation plate 25, realize the combination of air cooling and water cooling, and achieve a better heat dissipation effect. After the cooling is completed, the product is ready Cool and form, start the cylinder 5, the cylinder 5 drives the horizontal plate 6 to move upward, the horizontal plate 6 drives the baffle plate 7 to move upward, and the push plate 38 is driven by an external drive device, and the push plate 38 can push the product out of the discharge port 3.

In the description of this specification, descriptions with reference to the terms "one embodiment", "example", "specific example" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment of the present invention. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention.

Claims (10)

1. The utility model provides an extrusion tooling of plastic sheet material which characterized in that: comprising an extrusion die body (1); one end of the extrusion die main body (1) is set as a rectangular opening (2), the other end of the extrusion die main body (1) is set as a discharge opening (3), the extrusion die main body (1) is communicated with and provided with a feed pipe (4), the extrusion die main body (1) is fixedly connected with two cylinders (5), the output ends of the two cylinders (5) are fixedly connected with a transverse plate (6), the transverse plate (6) is fixedly connected with two baffle plates (7), the two baffle plates (7) slidably penetrate through the extrusion die main body (1), the bottom and the top of the extrusion die main body (1) are fixedly connected with heat-conducting plates (8), the heat-conducting plates (8) are fixedly connected with radiating fins (9), and the extrusion die main body (1) is provided with a water cooling mechanism;

the water-cooling mechanism includes two L shaped plates (10) of rigid coupling in extrusion tooling main part (1) bottom, one of them the rigid coupling has first water pump (11) on L shaped plate (10), install drinking-water pipe (12) on first water pump (11), one side of extrusion tooling main part (1) is equipped with water tank (13), the one end and water tank (13) intercommunication of drinking-water pipe (12), install first L venturi tube (14) on first water pump (11), the one end rigid coupling of first L venturi tube (14) has first U-shaped pipe (15), the one end rigid coupling of first U-shaped pipe (15) has first cooling tube (16), the other end rigid coupling of first U-shaped pipe (15) has second cooling tube (17), first cooling tube (16) and second cooling tube (17) rigid coupling are on heat-conducting plate (8), the one end of first cooling tube (16) and the one end of second cooling tube (17) have second U-shaped pipe (18), second U-shaped pipe (18) goes up the rigid coupling has second L shaped plate (19), and second L shaped pipe (19) is installed on another water pump (20) fixed water pump (20).

2. The plastic sheet extrusion die of claim 1, wherein: be equipped with the cooling subassembly in water tank (13), the cooling subassembly includes horizontal pipe (22) of rigid coupling on inlet tube (21), horizontal pipe (22) is located water tank (13), install atomizer (23) on horizontal pipe (22), the rigid coupling has first heating panel (24) on water tank (13), the rigid coupling has second heating panel (25) on water tank (13), atomizer (23) are just to first heating panel (24), the rigid coupling has two first swash plates (26) on first heating panel (24), the rigid coupling has two second swash plates (27) on second heating panel (25), two first swash plate (26) and two second swash plates (27) crisscross setting.

3. The plastic panel extrusion die of claim 2, wherein: be equipped with the forced air cooling subassembly on water tank (13), the forced air cooling subassembly includes four fixed columns (28), four of rigid coupling on water tank (13) the one end rigid coupling of fixed column (28) has fan (29), the rigid coupling has wind-collecting cover (30) on fan (29), the rigid coupling has connecting pipe (31) on wind-collecting cover (30), there are two first air-out shells (32), two through fixed pipe rigid coupling on connecting pipe (31) first air-out shell (32) are just to first cooling tube (16) and second cooling tube (17) respectively, first exhaust vent (33) have been seted up on first air-out shell (32).

4. A plastic sheet extrusion die as set forth in claim 3, wherein: there is second air-out shell (34) through fixed pipe rigid coupling on connecting pipe (31), second air-out shell (34) just to first heating panel (24) and second heating panel (25), second exhaust vent (35) have been seted up on second air-out shell (34).

5. The plastic sheet extrusion die of claim 4, wherein: two heating plates (36) are embedded into the extrusion die main body (1), and the heating plates (36) are used for heating materials.

6. The plastic panel extrusion die of claim 5, wherein: two limiting openings (37) are formed in the extrusion die main body (1), and the baffle (7) penetrates through the limiting openings (37) in a sliding mode.

7. The plastic panel extrusion die of claim 6, wherein: the extrusion die is characterized in that a push plate (38) is arranged in the extrusion die main body (1), and the outer wall of the push plate (38) is in contact with the inner wall of the extrusion die main body (1).

8. The plastic panel extrusion die of claim 7, wherein: the radiating fin (9) is provided with a first radiating hole (39), and the first radiating plate (24) and the second radiating plate (25) are provided with a second radiating hole (40).

9. The plastic panel extrusion die of claim 8, wherein: the radiating fins (9) are aligned to the middle positions of two adjacent first air outlet holes (33), and the second air outlet holes (35) are aligned to the second radiating holes (40).

10. The plastic panel extrusion die of claim 9, wherein: a cavity is formed between the extrusion die main body (1) and the two baffles (7), and the cavity is used for forming hot-melt plastic materials.

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