An extrusion molding equipment for producing plastic wood floor

Abstract

The present invention relates to the technical field of plastic wood floor production, specifically to an extrusion molding device for plastic wood floor production, including an electrical control cabinet, a docking plate, a vertical machine cover and an exhaust mechanism, wherein an extrusion barrel and a three-stage screw are arranged inside the vertical machine cover, and an injection tube and an extrusion mold are arranged at the bottom end of the extrusion barrel; a feeding port and an exhaust port are arranged on the vertical machine cover, a feeding mechanism is arranged on the feeding port, and a baffle plate is arranged inside the exhaust port. The feeding mechanism of the present invention can feed material laterally through the feeding port of the vertical machine cover, and the material is vertically fed through the three-stage screw in the extrusion barrel, so that the temperature of the air inside the material will also increase while the material is melted through the heating section, and the volatile substances in the air and the material will rise immediately in the heating section and can be separated from the material, and at this time, the exhaust mechanism extracts the heated air and the volatile substances from the exhaust port through the exhaust pipe, and the baffle plate can prevent the material from bubbling out of the exhaust port, so the residual bubbles can be reduced without deliberately adjusting the rotation speed of the three-stage screw.

Description

Technical Field

[0001] The invention relates to an extrusion molding device, in particular to an extrusion molding device used for producing plastic wood flooring, and belongs to the technical field of plastic wood flooring production. Background Art

[0002] Plastic wood flooring is a kind of flooring made of two materials, plastic and wood. It combines the durability, moisture resistance and easy processing of plastic with the natural texture and beauty of wood, thus creating a building material that is both environmentally friendly and practical. As a new type of environmentally friendly building material, plastic wood flooring has broad application prospects. Its extrusion molding equipment plays an important role in the production process of plastic wood flooring, and the existing extrusion molding equipment used for the production of plastic wood flooring needs to have good exhaust function to prevent defects such as bubbles from appearing during the extrusion process of plastic wood flooring.

[0003] Existing extrusion molding equipment for the production of plastic wood flooring is usually a flat feeding type, which is not conducive to the discharge of volatiles and bubbles in air and materials. For example, a screw extruder for producing plastic wood is disclosed in a Chinese patent document with a publication number of CN217226574U, in which the diameter of the feeding screw is adapted to the inner diameter of the extrusion barrel, the driven gear is welded and fixed to the rotating shaft at the end of the feeding screw, the feeding screw is rotatably connected to the extrusion barrel through the rotating shaft, the motor is fixedly connected to the extruder body through bolts, the output shaft of the motor is welded and fixed to the driving gear, the driving gear is meshed with the driven gear, the motor provides a power source, the driving gear cooperates with the driven gear, the motor output shaft rotates, the feeding screw is driven to rotate, and the plastic wood material is continuously extruded and discharged.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it is found that when the above equipment is used, the exhaust hole is usually opened on the upper side of the extrusion barrel. The material gradually melts as the feeding screw is conveyed. When passing the exhaust hole, the reverse thread of the exhaust section of the feeding screw will push the molten material in the opposite direction, and the exhaust section will be evacuated into a partial vacuum through the exhaust system, thereby discharging the bubbles and volatile substances. However, since the feeding mechanism will inevitably be mixed with some air and moisture when feeding the material, the feeding screw needs to keep rotating at a high speed during the horizontal conveying process, and the power balance problem between the feeding screw and the exhaust mechanism is difficult to control, and the staff is required to conduct a long test before starting the machine. If the feeding screw rotates too fast, the bubbles may be sent out together with the material due to the excessive speed, and too slow will cause material to burst out of the exhaust hole.

[0005] Therefore, it is urgent to improve the extrusion molding equipment used for the production of plastic wood flooring to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide an extrusion molding device for producing plastic wood flooring. The feeding mechanism can feed the material laterally through the feeding port of the vertical machine cover. The material is vertically fed through the three-stage screw in the extruder. Therefore, when the material is melted through the heating section, the temperature of the air inside it will also increase. The air and the volatile substances in the material will then rise and be separated from the material in the heating section. At this time, the exhaust mechanism extracts the heated air and the volatile substances from the exhaust port through the exhaust pipe. The baffle plate can prevent the exhaust port from bubbling. Therefore, the residual bubbles can be reduced without deliberately adjusting the rotation speed of the three-stage screw.

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] An extrusion molding device for producing plastic wood flooring, comprising an electrical control cabinet and a docking plate fixedly installed on the bottom side of the electrical control cabinet, a vertical machine cover fixedly installed on one side of the electrical control cabinet corresponding to the docking plate by bolts, an extrusion barrel fixedly arranged inside the vertical machine cover, a three-stage screw rotatably arranged inside the extrusion barrel, an injection tube rotatably connected to the bottom end of the extrusion barrel by a thread, an extrusion mold fixedly connected to one end of the injection tube away from the three-stage screw, and the extrusion mold fixedly arranged on the docking plate;

[0009] A feeding port and an exhaust port are provided on the vertical machine cover, and the extrusion barrel is connected with the outside world through the feeding port and the exhaust port. A feeding mechanism is fixedly connected to the feeding port, and the feeding mechanism is arranged above the docking plate. A baffle plate is fixedly arranged inside the exhaust port. An exhaust mechanism is fixedly arranged on the electrical control cabinet, and an exhaust pipe is fixedly installed on the output end of the exhaust mechanism. One end of the exhaust pipe away from the exhaust mechanism is fixedly connected to the baffle plate, and the exhaust pipe is connected with the inside of the extrusion barrel through the exhaust port.

[0010] Preferably, the feeding port and the exhaust port are each in two groups, and the feeding port and the exhaust port are staggeredly arranged on the side of the vertical machine cover away from the electrical control cabinet, the upper end of the extrusion cylinder is fixedly connected with a flange, the upper end of the flange is fixedly installed with a driving motor, the output end of the driving motor passes through the flange and extends to the interior of the extrusion cylinder, and the upper end of the three-stage screw is fixedly connected to the output end of the flange.

[0011] Preferably, a rotor is fixedly installed inside the three-stage screw, and several groups of coils are wound on the rotor. Several supports are fixedly installed at both ends of the rotor, and the coils are wound between two adjacent supports. The bottom end of the support is away from the rotor and abuts against the inner wall of the three-stage screw.

[0012] Preferably, a plurality of groups of electromagnetic plates are fixedly installed inside the vertical machine hood, and the electromagnetic plates are evenly distributed on both sides of the extrusion cylinder. A plurality of evenly distributed temperature control mechanisms are fixedly provided on the vertical machine hood, and the temperature control mechanisms correspond to the electromagnetic plates. The temperature control mechanisms penetrate the extrusion cylinder and extend to the outside of the vertical machine hood.

[0013] Preferably, temperature-sensing fluid cavities are provided inside both ends of the temperature control mechanism, piston caps are slidably provided at both ends of the temperature control mechanism, a stirring column is fixedly provided in the middle part of the temperature control mechanism, a branch-like temperature-conducting tube is fixedly installed inside the stirring column, the branch ends of the branch-like temperature-conducting tube extend to the interior of the temperature-sensing fluid cavity, a return spring is fixedly provided inside the piston cap, and one end of the return spring away from the piston cap is fixedly connected to the inner wall of the temperature-sensing fluid cavity.

[0014] Preferably, an electrode block is fixedly provided on the piston cap, the electrode block is connected in series to the power supply circuit of the electromagnetic plate through a wire, an electrode plate is fixedly provided at a position of the electromagnetic plate corresponding to the electrode block, and the electrode block abuts against the electrode plate.

[0015] Preferably, an injection port is opened inside the injection tube, and the injection port corresponds to the bottom end of the three-stage screw. The extrusion mold is fixedly installed with a porous plate corresponding to the position of the injection port. The extrusion mold is connected to the interior of the three-stage screw through the injection port and the porous plate, and a molding groove is fixedly set inside the extrusion mold.

[0016] Preferably, support frames are fixedly installed on both sides of the docking plate by bolts, and the feeding mechanism is fixedly installed on the support frame by a ring sleeve. A plurality of feeding ports are opened at the upper end of the feeding mechanism, and the feeding mechanism is connected with an external feeding pipe through the feeding ports.

[0017] Preferably, a feeding motor is fixedly mounted on the upper end of the feeding mechanism, the output end of the feeding motor passes through the feeding mechanism and extends into the interior of the feeding mechanism, and a stirring member is fixedly provided at the output end of the feeding mechanism, one side of the stirring member abuts against the inner wall of the feeding mechanism.

[0018] Preferably, the exhaust mechanism includes a dual-shaft motor and a vacuum pump fixedly arranged on both sides of the dual-shaft motor, the output end of the vacuum pump is connected to a vacuum tank through an air pipe, the end of the exhaust pipe away from the baffle plate is fixedly connected to the vacuum tank, and the upper end of the vacuum pump is fixedly connected to an exhaust pipe.

[0019] The present invention has at least the following beneficial effects:

[0020] 1. The feeding mechanism of the present invention can feed the material laterally through the feeding port of the vertical machine cover. The material is fed vertically in the extruder through the three-stage screw. Therefore, when the material melts through the heating section, the temperature of the air inside it will also increase. The air and the volatile substances in the material will then rise and separate from the material in the heating section. At this time, the exhaust mechanism extracts the heated air and volatile substances from the exhaust port through the exhaust pipe. The baffle plate can prevent the material from escaping from the exhaust port. Therefore, the residual bubbles can be reduced without deliberately adjusting the speed of the three-stage screw.

[0021] 2. After the original material of the present invention enters the heating tooth pattern section of the three-stage screw, the melted air of the material is heated and rises, and the upper exhaust port can directly discharge the heated air, and at the same time, a negative pressure is generated for the feeding mechanism of the upper feeding port to assist feeding. The lower feeding port is used to add auxiliary materials such as lubricants for lubrication and material proportioning. After the molten material enters the exhaust reverse thread section of the three-stage screw, the lower exhaust port can discharge the bubbles and volatile substances in the molten material. The multi-stage exhaust can greatly improve the exhaust effect of the extrusion molding equipment, thereby greatly improving the production quality of the plastic wood floor.

[0022] 3. The exhaust port at the bottom of the present invention can discharge bubbles and volatile substances in the molten material. Due to the preliminary exhaust of the upper exhaust port, the exhaust pressure of the lower exhaust port drops sharply, so the outlet of the lower baffle plate can be greatly reduced, which does not affect the exhaust effect and can also greatly reduce the risk of material overflow.

[0023] 4. During the rotation of the three-stage screw of the present invention, the coil cyclically cuts the magnetic flux lines in the magnetic field of the electromagnetic plate to generate current. Since the coil itself has a certain resistance, the coil heats up, and the heat of the coil is also conducted to the inside of the three-stage screw. There is no need to use additional heating equipment to heat the three-stage screw, which not only reduces the difficulty of assembling the three-stage screw, but also reduces its production cost, and can ensure that the screw will not cool down during the operation of the extrusion molding equipment, greatly reducing the risk of clogging of the extrusion barrel by material accumulation.

[0024] 5. The molten material of the present invention will collide with the stirring column during the transportation in the extrusion barrel, which can play a stirring role on the one hand, and can also differentiate tiny bubbles to facilitate discharge by the exhaust mechanism on the other hand. At this time, the branch-shaped temperature conducting tube contacts the molten material and conducts the high temperature to the fluid in the temperature-sensitive fluid cavity. The temperature-sensitive fluid expands due to the heat, and the transmission piston cap slides toward the outside of the temperature control mechanism. The electrode block is separated from the electrode to cut off the power of the electromagnetic plate. When the temperature of the molten material is too high, the coil can stop generating heat to prevent the feeding from being moved and the material from being overheated and decomposed.

[0025] 6. The vacuum pump on the left side of the present invention is used to extract air, and the vacuum pump on the right side is used to extract tiny bubbles and volatile substances. The vacuum tank can prevent materials from entering the vacuum pump, making it easy to select different types of pumps to grade and classify the gas through the exhaust pipe, which is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 The overall elevation diagram provided by the present invention;

[0028] Figure 2 A schematic diagram of the connection of the vertical hood provided by the present invention;

[0029] Figure 3 A partial cross-sectional elevation view provided for the present invention;

[0030] Figure 4 The present invention provides Figure 3 The enlarged schematic diagram at A in the middle;

[0031] Figure 5 A cross-sectional elevation view of a three-section screw provided by the present invention;

[0032] Figure 6 The present invention provides Figure 5 The enlarged schematic diagram of point B in the middle;

[0033] Figure 7 A sectional elevation view of the temperature control mechanism provided by the present invention;

[0034] Figure 8 A schematic diagram of the working of the temperature control mechanism provided by the present invention;

[0035] Fig. 9 An elevation view of the exhaust mechanism provided by the present invention;

[0036] Fig.10 A schematic diagram of a circuit provided by the present invention.

[0037] In the figure, 1, electrical control cabinet; 2, docking plate; 3, vertical machine cover; 31, feeding port; 32, exhaust port; 33, baffle plate; 4, extrusion barrel; 41, flange; 42, drive motor; 5, three-stage screw; 51, rotor; 52, coil; 53, support; 6, injection tube; 61, injection port; 7, extrusion mold; 71, molding die groove; 8, feeding mechanism; 81, loading port; 82, feeding motor; 83. Stirring element; 9. Exhaust mechanism; 91. Double-shaft motor; 92. Vacuum pump; 93. Vacuum tank; 94. Exhaust pipe; 10. Exhaust pipe; 11. Electromagnetic plate; 111. Electrode plate; 12. Temperature control mechanism; 121. Temperature-sensing fluid chamber; 122. Piston cap; 123. Stirring column; 124. Branch-shaped temperature-conducting tube; 125. Reset spring; 126. Electrode block; 13. Perforated plate; 14. Support frame. DETAILED DESCRIPTION

[0038] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0039] like Figure 1 - Fig.10 As shown, the extrusion molding equipment for the production of plastic wood flooring provided in this embodiment includes an electrical control cabinet 1 and a docking plate 2 fixedly installed on the bottom side of the electrical control cabinet 1. A vertical machine cover 3 is fixedly installed on one side of the electrical control cabinet 1 corresponding to the docking plate 2 by bolts. An extrusion barrel 4 is fixedly arranged inside the vertical machine cover 3. The vertical machine cover 3 can protect the extrusion barrel 4. A three-stage screw 5 is rotatably arranged inside the extrusion barrel 4. The three-stage screw 5 generally includes a feeding thread section, a heating tooth section and an exhaust reverse thread section at both ends. The bottom end of the extrusion barrel 4 is rotatably connected to an injection molding tube 6 through a thread. The injection molding tube 6 is used for drainage and injection molding. The end of the injection molding tube 6 away from the three-stage screw 5 is fixedly connected to an extrusion mold 7. The extrusion mold 7 is used to extrude and mold the molten material. The extrusion mold 7 is fixedly arranged on the docking plate 2. The docking plate 2 facilitates the docking of the plastic wood flooring rough blank extruded by the extrusion mold 7 with the traction machine. The three-stage screw 5 is a prior art and will not be described in detail here.

[0040] A feeding port 31 and an exhaust port 32 are provided on the vertical machine cover 3, and the extrusion barrel 4 is connected to the outside through the feeding port 31 and the exhaust port 32. A feeding mechanism 8 is fixedly connected to the feeding port 31, and the feeding mechanism 8 is arranged above the docking plate 2. The feeding mechanism 8 can perform side feeding through the feeding port 31 of the vertical machine cover 3. A baffle plate 33 is fixedly provided inside the exhaust port 32. An exhaust mechanism 9 is fixedly provided on the electrical control cabinet 1. An exhaust pipe 10 is fixedly installed on the output end of the exhaust mechanism 9. One end of the exhaust pipe 10 away from the exhaust mechanism 9 is fixedly connected to the baffle plate 33. The exhaust pipe 10 is connected to the inside of the extrusion barrel 4 through the exhaust port 32. The exhaust mechanism 9 can extract heated air and volatile substances from the exhaust port 32 through the exhaust pipe 10.

[0041] Among them, the feeding mechanism 8 can perform side feeding through the feeding port 31 of the vertical machine cover 3, and the material is vertically fed through the three-stage screw 5 in the extruder barrel 4. After the material enters the heating tooth section of the three-stage screw 5, the material is melted by the heating mechanism. While the material is melted, the temperature of the air inside it will also increase, and the volatile substances in the air and the material will immediately rise in the heating section and be separated from the material. At this time, the exhaust mechanism 9 extracts the heated air and volatile substances from the exhaust port 32 through the exhaust pipe 10, and the baffle plate 33 can prevent the exhaust port from emitting material. Therefore, there is no need to deliberately adjust the speed of the three-stage screw 5 to reduce the residual bubbles. The injection tube 6 is used for drainage and injection molding, the extrusion mold 7 is used to extrude and mold the molten material, and the docking plate 2 can dock the rough plastic wood flooring extruded by the extrusion mold 7 with the traction machine, and then continuously mold and uninterruptedly process, thereby greatly improving the production efficiency of the plastic wood flooring.

[0042] Further, such as Figure 1 - Fig.10 As shown, the feed port 31 and the exhaust port 32 are both in two groups, and the feed port 31 and the exhaust port 32 are staggeredly arranged on the side of the vertical machine cover 3 away from the electrical control cabinet 1. The upper feed port 31 is used to add the original material, and the lower feed port 31 is used to add auxiliary materials such as lubricants; the upper exhaust port 32 can directly discharge the heated air, and at the same time generate negative pressure to the feeding mechanism 8 of the upper feed port 31 to assist feeding, and the lower exhaust port 32 can discharge the bubbles and volatile substances in the molten material. Due to the preliminary exhaust of the upper exhaust port 32, The exhaust pressure of the exhaust port 32 below drops suddenly, so the outlet of the lower baffle plate 33 can be greatly reduced, which does not affect the exhaust effect and can also greatly reduce the risk of material overflow. The upper end of the extrusion barrel 4 is fixedly connected to a flange 41, and a drive motor 42 is fixedly installed on the upper end of the flange 41. The output end of the drive motor 42 passes through the flange 41 and extends to the inside of the extrusion barrel 4. The upper end of the three-stage screw 5 is fixedly connected to the output end of the flange 41. The drive motor 42 is used to drive the three-stage screw 5 to rotate in the extrusion barrel to facilitate material transportation.

[0043] Among them, the driving motor 42 drives the three-stage screw 5 to rotate in the extrusion barrel, and the feeding port 31 and the exhaust port 32 are staggered on the side of the vertical machine cover 3 away from the electrical control cabinet 1. The upper feeding port 31 is used to add the original material. After the original material enters the heating tooth pattern section of the three-stage screw 5, the material melts and the air rises due to the heat. The upper exhaust port 32 can directly discharge the heated air, and at the same time, the feeding mechanism 8 of the upper feeding port 31 is used to generate negative pressure to assist feeding. The lower feeding port 31 is used to add auxiliary materials such as lubricants for lubrication and material proportioning. After the molten material enters the exhaust reverse thread section of the three-stage screw 5, the lower exhaust port 32 can discharge the bubbles and volatile substances in the molten material. The multi-stage exhaust can greatly improve the exhaust effect of the extrusion molding equipment, thereby greatly improving the production quality of the plastic wood floor;

[0044] In order to solve the problem of material overflowing from the exhaust port 32 on the side of the vertical hood:

[0045] The upper feeding port 31 is used to add the original material, and the lower feeding port 31 is used to add auxiliary materials such as lubricants. The upper exhaust port 32 can directly discharge the heated air, and at the same time generate negative pressure to the feeding mechanism 8 of the upper feeding port 31 to assist feeding. The lower exhaust port 32 can discharge the bubbles and volatile substances in the molten material. Due to the preliminary exhaust of the upper exhaust port 32, the exhaust pressure of the lower exhaust port 32 drops sharply, so the outlet of the lower baffle plate 33 can be greatly reduced, which will not affect the exhaust effect and can also greatly reduce the risk of material overflow.

[0046] Furthermore, if Figure 1 - Fig.10 As shown, a rotor 51 is fixedly installed inside the three-stage screw 5, and a plurality of groups of coils 52 are wound on the rotor 51. A plurality of supports 53 are fixedly installed at both ends of the rotor 51. The coils 52 are wound between two adjacent supports 53, which can prevent adjacent coils 52 from contacting each other to increase resistance. The bottom end of the support 53 is away from the rotor 51 and abuts against the inner wall of the three-stage screw 5. The support 53 can prevent the rotor 51 from shaking when the three-stage screw 5 rotates. A plurality of groups of electromagnetic plates 11 are fixedly installed inside the vertical machine cover 3. The electromagnetic plates 11 are evenly distributed on both sides of the extrusion barrel 4. The plurality of electromagnetic plates 11 are connected in series with each other. A plurality of evenly distributed temperature control mechanisms 12 are fixedly arranged on the vertical machine cover 3. A group of temperature control mechanisms 12 corresponds to a group of electromagnetic plates 11. The temperature control mechanism 12 passes through the extrusion barrel 4 and extends to the outside of the vertical machine cover 3.

[0047] Specifically, when the electromagnetic plate 11 is energized, a magnetic field is generated near the extrusion barrel 4. When the driving motor 42 drives the three-stage screw 5 to rotate in the extrusion barrel 4, the rotor 51 rotates with the support 53, and the coil 52 then rotates in the magnetic field of the electromagnetic plate 11 to circulate and cut the magnetic flux lines to generate current. According to Joule's law, when current passes through a conductor, heat is generated, and the amount of heat is proportional to the square of the current, the resistance of the conductor, and the power-on time. Therefore, when the coil 52 cuts the magnetic flux lines to generate current, since the coil 52 itself has a certain resistance, this part of the current will be converted into heat energy when passing through the coil 52, causing the coil 52 to heat up, and the heat of the coil 52 will also be conducted to the inside of the three-stage screw 5. The specific formula is as follows:

[0048] Q=I 2 R

[0049] Where Q is the heat generated by the current passing through the conductor, in joules (J); I is the current passing through the conductor, in amperes (A); R is the resistance of the conductor, in ohms (Ω); t is the time the current passes through the conductor, in seconds (s);

[0050] Therefore, there is no need to use additional heating equipment to heat the three-stage screw 5, which not only reduces the difficulty of assembling the three-stage screw 5, but also reduces its production cost, and can ensure that the screw will not cool down during the operation of the extrusion molding equipment, greatly reducing the risk of material accumulation and clogging of the extrusion barrel 4;

[0051] At the same time, if Figure 1 - Fig.10 As shown, temperature-sensing fluid cavities 121 are provided inside at both ends of the temperature control mechanism 12, piston caps 122 are slidably provided at both ends of the temperature control mechanism 12, a stirring column 123 is fixedly provided in the middle of the temperature control mechanism 12, a branch-shaped temperature-conducting tube 124 is fixedly installed inside the stirring column 123, and the branch ends of the branch-shaped temperature-conducting tube 124 extend to the inside of the temperature-sensing fluid cavity 121, a reset spring 125 is fixedly provided inside the piston cap 122, and one end of the reset spring 125 away from the piston cap 122 is fixedly connected to the inner wall of the temperature-sensing fluid cavity 121, an electrode block 126 is fixedly provided on the piston cap 122, and the electrode block 126 is connected in series to the power supply circuit of the electromagnetic plate 11 through a wire, and an electrode plate 111 is fixedly provided at the position of the electromagnetic plate 11 corresponding to the electrode block 126, and the electrode block 126 abuts against the electrode plate 111;

[0052] The molten material will collide with the stirring column 123 during the transportation in the extrusion barrel 4, which can play a stirring role on the one hand, and can also differentiate tiny bubbles to facilitate the exhaust mechanism 9 to discharge on the other hand. At this time, the branch-shaped temperature conducting tube 124 contacts the molten material and conducts the high temperature to the fluid in the temperature-sensitive fluid cavity 121. The temperature-sensitive fluid expands due to the heat and the transmission piston cap 122 slides toward the outside of the temperature control mechanism 12. The electrode block 126 is separated from the electrode plate 111 to cut off the power of the electromagnetic plate 11. When the temperature of the molten material is too high, the coil 52 can stop generating heat to prevent the feeding from being moved and the material from being overheated and decomposed.

[0053] In order to solve the problem of continuous increase in temperature of coil 52 during continuous production:

[0054] The branch-like temperature conducting tube 124 contacts with the molten material and conducts the high temperature to the fluid in the temperature-sensitive fluid cavity 121. The temperature-sensitive fluid expands due to the heat, and the transmission piston cap 122 slides toward the outside of the temperature control mechanism 12. The electrode block 126 is separated from the electrode plate 111 to cut off the power to the electromagnetic plate 11. When the temperature of the molten material is too high, the coil 52 can stop generating heat, thereby achieving the purpose of cooling. On the contrary, the molten material reduces the contraction of the temperature-sensitive fluid. After the electrode block 126 contacts with the electrode plate 111, the electromagnetic plate 11 is energized, and the coil 52 generates heat, which can maintain the temperature of the three-stage screw 5 within a certain range.

[0055] Further, if Figure 1 - Fig.10 As shown, an injection port 61 is provided inside the injection tube 6, and the injection port 61 corresponds to the bottom end of the three-stage screw 5. A porous plate 13 is fixedly installed at the position of the extrusion die 7 corresponding to the injection port 61. The porous plate 13 is used to filter impurities from the material, which can reduce the color difference of the plastic wood floor. The extrusion die 7 is connected to the inside of the three-stage screw 5 through the injection port 61 and the porous plate 13. A forming die groove 71 is fixedly provided inside the extrusion die 7, and the forming die groove 71 can prevent the hollow profile ribs or holes from deforming.

[0056] Furthermore, if Figure 1 - Fig.10 As shown, support frames 14 are fixedly installed on both sides of the docking plate 2 by bolts, and the feeding mechanism 8 is fixedly installed on the support frame 14 by a ring sleeve. The support frame 14 can improve the stability of the feeding mechanism 8. A plurality of loading ports 81 are opened at the upper end of the feeding mechanism 8. The feeding mechanism 8 is connected with an external feeding pipe through the loading port 81 to facilitate feeding. A feeding motor 82 is fixedly installed on the upper end of the feeding mechanism 8. The output end of the feeding motor 82 passes through the feeding mechanism 8 and extends to the interior of the feeding mechanism 8. A stirring member 83 is fixedly provided at the output end of the feeding mechanism 8. One side of the stirring member 83 is against the inner wall of the feeding mechanism 8. The feeding motor 82 is used to drive the stirring member 83 to rotate, thereby mixing, stirring and feeding the mixed materials.

[0057] In addition, if Figure 1 - Fig.10 As shown, the exhaust mechanism 9 includes a double-output shaft motor 91 and a vacuum pump 92 fixedly arranged on both sides of the double-output shaft motor 91. The double-output shaft motor 91 is used to drive the vacuum pump 92 to work. The output end of the vacuum pump 92 is connected to a vacuum tank 93 through an air pipe. The end of the exhaust pipe 10 away from the baffle plate 33 is fixedly connected to the vacuum tank 93. The upper end of the vacuum pump 92 is fixedly connected to an exhaust pipe 94. The vacuum pump 92 on the left is used to extract air, and the vacuum pump 92 on the right is used to extract tiny bubbles and volatile substances. The vacuum tank 93 can prevent materials from entering the vacuum pump 92, which is convenient for selecting different types of pumps to grade and classify the gas through the exhaust pipe, which is more environmentally friendly.

[0058] like Figure 1 - Fig.10 As shown, the principle of an extrusion molding device for producing plastic wood flooring provided in this embodiment is as follows:

[0059] The feeding mechanism 8 can perform side feeding through the feeding port 31 of the vertical machine cover 3. The material is vertically fed through the three-stage screw 5 in the extruder barrel 4. After the material enters the heating tooth pattern section of the three-stage screw 5, the material is melted by the heating mechanism. While the material is melting, the temperature of the air inside it will also increase. The air and the volatile substances in the material will then rise and be separated from the material in the heating section. At this time, the exhaust mechanism 9 extracts the heated air and volatile substances from the exhaust port 32 through the exhaust pipe 10. The upper feeding port 31 is used to add the original material. After the original material enters the heating tooth pattern section of the three-stage screw 5, the material melts and the air is heated and rises. The upper exhaust port 32 can directly discharge the heated air, and at the same time, the upper feeding port 31 is fed. The mechanism 8 generates negative pressure to assist feeding. The feeding port 31 below is used to add auxiliary materials such as lubricants for lubrication and material proportioning. After the molten material enters the exhaust reverse thread section of the three-stage screw 5, the exhaust port 32 below can discharge bubbles and volatile substances in the molten material. The multi-stage exhaust can greatly improve the exhaust effect of the extrusion molding equipment. The baffle plate 33 can prevent the exhaust port from bubbling. The coil 52 generates heat and maintains the temperature of the three-stage screw 5 within a certain range through the temperature control mechanism 12 and the electromagnetic plate 11. The injection tube 6 is used for drainage and injection molding. The extrusion mold 7 is used to extrude the molten material. The docking plate 2 can dock the rough plastic wood flooring extruded by the extrusion mold 7 with the traction machine, thereby continuously molding and uninterrupted processing.

[0060] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0061] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0062] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. An extrusion molding device for producing plastic wood flooring, comprising an electrical control cabinet (1) and a docking plate (2) fixedly mounted on the bottom side of the electrical control cabinet (1), characterized in that: A vertical machine cover (3) is fixedly installed on one side of the electrical control cabinet (1) corresponding to the docking plate (2) by means of bolts, an extrusion barrel (4) is fixedly arranged inside the vertical machine cover (3), a three-stage screw (5) is rotatably arranged inside the extrusion barrel (4), an injection tube (6) is rotatably connected to the bottom end of the extrusion barrel (4) by means of a thread, an extrusion mold (7) is fixedly connected to one end of the injection tube (6) away from the three-stage screw (5), and the extrusion mold (7) is fixedly arranged on the docking plate (2); The vertical machine cover (3) is provided with a feeding port (31) and an exhaust port (32), the extrusion cylinder (4) is connected to the outside through the feeding port (31) and the exhaust port (32), the feeding port (31) is fixedly connected with a feeding mechanism (8), the feeding mechanism (8) is arranged above the docking plate (2), a baffle plate (33) is fixedly arranged inside the exhaust port (32), the electrical control cabinet (1) is fixedly provided with an exhaust mechanism (9), an exhaust pipe (10) is fixedly installed at the output end of the exhaust mechanism (9), and the exhaust pipe (10) is away from the exhaust mechanism One end of the extrusion tube (9) is fixedly connected to the baffle plate (33), the exhaust pipe (10) is connected to the interior of the extrusion barrel (4) through the exhaust port (32), a plurality of groups of electromagnetic plates (11) are fixedly installed inside the vertical machine cover (3), the electromagnetic plates (11) are evenly distributed on both sides of the extrusion barrel (4), and a plurality of evenly distributed temperature control mechanisms (12) are fixedly arranged on the vertical machine cover (3), the temperature control mechanisms (12) correspond to the electromagnetic plates (11), and the temperature control mechanisms (12) penetrate the extrusion barrel (4) and extend to the outside of the vertical machine cover (3); A rotor (51) is fixedly mounted inside the three-stage screw (5), a plurality of groups of coils (52) are wound around the rotor (51), a plurality of supports (53) are fixedly mounted at both ends of the rotor (51), the coils (52) are wound between two adjacent supports (53), and the bottom end of the support (53) away from the rotor (51) abuts against the inner wall of the three-stage screw (5); A temperature-sensing fluid cavity (121) is provided inside both ends of the temperature control mechanism (12), piston caps (122) are slidably provided at both ends of the temperature control mechanism (12), a stirring column (123) is fixedly provided in the middle of the temperature control mechanism (12), a branch-shaped temperature-conducting pipe (124) is fixedly installed inside the stirring column (123), the branch ends of the branch-shaped temperature-conducting pipe (124) extend into the interior of the temperature-sensing fluid cavity (121), and a return spring (124) is fixedly provided inside the piston cap (122). 25), one end of the return spring (125) away from the piston cap (122) is fixedly connected to the inner wall of the temperature-sensitive fluid chamber (121), an electrode block (126) is fixedly arranged on the piston cap (122), the electrode block (126) is connected in series to the power supply circuit of the electromagnetic plate (11) through a wire, and an electrode plate (111) is fixedly arranged at a position of the electromagnetic plate (11) corresponding to the electrode block (126), and the electrode block (126) abuts against the electrode plate (111).

2. The extrusion molding equipment for producing plastic wood flooring according to claim 1, characterized in that: The feeding port (31) and the exhaust port (32) are each in two groups, and the feeding port (31) and the exhaust port (32) are staggeredly arranged on a side of the vertical machine cover (3) away from the electrical control cabinet (1); the upper end of the extrusion barrel (4) is fixedly connected to a flange (41); the upper end of the flange (41) is fixedly mounted with a drive motor (42); the output end of the drive motor (42) passes through the flange (41) and extends into the interior of the extrusion barrel (4); the upper end of the three-stage screw (5) is fixedly connected to the output end of the flange (41).

3. The extrusion molding equipment for producing plastic wood flooring according to claim 1, characterized in that: The injection tube (6) is provided with an injection port (61) inside, and the injection port (61) corresponds to the bottom end of the three-stage screw (5). The extrusion die (7) is fixedly provided with a porous plate (13) at a position corresponding to the injection port (61). The extrusion die (7) is connected to the inside of the three-stage screw (5) through the injection port (61) and the porous plate (13), and a molding groove (71) is fixedly provided inside the extrusion die (7).

4. The extrusion molding equipment for producing plastic wood flooring according to claim 1, characterized in that: Support frames (14) are fixedly mounted on both sides of the docking plate (2) by means of bolts, and the feeding mechanism (8) is fixedly mounted on the support frame (14) by means of a ring sleeve. A plurality of feeding ports (81) are provided at the upper end of the feeding mechanism (8), and the feeding mechanism (8) is connected to an external feeding pipe through the feeding ports (81).

5. The extrusion molding equipment for producing plastic wood flooring according to claim 1, characterized in that: A feeding motor (82) is fixedly mounted on the upper end of the feeding mechanism (8); an output end of the feeding motor (82) passes through the feeding mechanism (8) and extends into the interior of the feeding mechanism (8); a stirring member (83) is fixedly arranged at the output end of the feeding mechanism (8); one side of the stirring member (83) abuts against the inner wall of the feeding mechanism (8).

6. The extrusion molding equipment for producing plastic wood flooring according to claim 1, characterized in that: The exhaust mechanism (9) comprises a double-output shaft motor (91) and a vacuum pump (92) fixedly arranged on both sides of the double-output shaft motor (91); the output end of the vacuum pump (92) is connected to a vacuum tank (93) via an air pipe; one end of the exhaust pipe (10) away from the baffle plate (33) is fixedly connected to the vacuum tank (93); and the upper end of the vacuum pump (92) is fixedly connected to an exhaust pipe (94).

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