A feeding, mixing and stirring device made of a plastic bonding resin

Abstract

The present invention relates to the technical field of mixing and stirring, and particularly relates to a feeding, mixing and stirring device for manufacturing plastic bonding resin, which comprises a stirring cylinder, stirring blades, a stirring motor and a gas circulation assembly; the stirring cylinder comprises a cylinder body and a cover body, and an air outlet hole is arranged on the cover body. The cylinder body sequentially comprises an inner wall layer, a support layer and a heating layer from inside to outside. There is a gap between the inner wall layer and the support layer to form a gas space; a plurality of frustum-shaped air outlet through holes are arranged on the inner wall layer; the gas circulation assembly comprises an air pump communicating the air outlet hole and the gas space. In the present invention, through the gas space between the inner wall layer and the support layer, and in cooperation with the air pump, gas circulation is realized, and the liquid resin adhered to the inner wall of the cylinder can be blown up and expanded, so that the contact area with the plastic particles is increased; the blown gas will form an air film on the surface of the inner wall layer. Due to the existence of the air film, the liquid resin is not easily adhered to the surface of the inner wall layer, further improving the mixing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of mixing and stirring, and particularly relates to a feeding, mixing and stirring device for manufacturing plastic bonding resin. Background Art

[0002] At present, the mixers for plastic products are relatively large in volume, and the mixing and stirring are commonly used in the process of mixing solid plastic particles with solid, semi-solid and liquid resins. The existing mixing and stirring devices generally include stirring blades and a stirring barrel. Since there is a gap between the stirring blades and the inner wall of the stirring barrel, the existing stirring devices are equipped with a heating function to improve the stirring effect; there is also a phenomenon of heat generation due to friction between the materials during stirring. At the same time, most resins are in a liquid state (or the final state after heating is liquid), which causes the resin to adhere to the inner side wall of the stirring barrel and cannot be stirred by the stirring blades when the resin is melted by heat during stirring or is in a liquid state itself, resulting in poor stirring effect or uneven stirring, and further leading to poor product quality.

[0003] Based on this use, there is an urgent need in the market for a feeding, mixing and stirring device for manufacturing plastic bonding resin that can make the mixture uniform. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide a feeding, mixing and stirring device for manufacturing plastic bonding resin that can make the mixture uniform.

[0005] To solve the above technical problem, the technical solution adopted by the present invention is:

[0006] A feeding, mixing and stirring device for manufacturing plastic bonding resin, comprising a stirring barrel, stirring blades, a stirring motor and a gas circulation component;

[0007] The stirring barrel includes a barrel body and a cover body, and the cover body is detachably covered on the barrel body; when the cover body and the barrel body are combined, the stirring barrel forms a sealed space; the cover body is provided with an installation hole and an air outlet hole, and an installation seat is arranged on the upper surface of the cover body; the barrel body sequentially includes an inner wall layer, a support layer, a heating layer, a heat insulation layer and an outer shell layer from inside to outside. There is a gap between the inner wall layer and the support layer, and support columns are arranged in the gap to connect the inner wall layer and the support layer to form a gas space; a plurality of frustum-shaped air outlet through holes are arranged on the inner wall layer, the larger end of the air outlet through hole faces the gas space, and the air outlet through hole faces the center of the sealed space; the support layer and the support columns are made of heat-conducting materials.

[0008] The gas circulation component includes an air pump, a filter, a three-way valve and a radiator, and the air outlet hole, the filter, the air pump, the three-way valve and the gas space are sequentially connected; the three-way valve, the radiator and the gas space are sequentially connected.

[0009] The stirring blade includes a stirring shaft and blades. The stirring shaft is located inside the cylinder body, and one end passes through the mounting hole and is rotatably connected to the mounting hole. The stirring motor is arranged on the mounting seat and is in transmission connection with the stirring shaft.

[0010] When the feeding and mixing stirring device made of the plastic bonding resin is stirring, open the cover body to add solid plastic particles and resin into the cylinder body. After pouring the materials and installing the cover body, the sealing of the sealed space is achieved. Start the stirring motor, the heating layer and the gas circulation component. At the same time, make the air pump and the gas space communicate through the three-way valve. The heating layer heats to make the final state of the resin liquid. The stirring motor drives the stirring blade to stir the plastic particles and the resin, and part of the liquid resin adheres to the inner wall layer. The air pump of the gas circulation component sucks the gas in the sealed space through the air outlet hole, then sends it into the gas space through the filter and the air pump, so that a negative pressure is generated in the sealed space and a positive pressure is generated in the gas space, and a pressure difference is generated between the two, so that the liquid resin adhering to the inner wall of the cylinder body is blown up and expanded towards the sealed space by the pressure difference. The contact area between the expanded resin and the plastic particles increases, or the expanded liquid resin is forced to expand and break, and the resin splashes towards the center of the sealed space. At the same time, the positive pressure generated in the gas space forms an air film on the surface of the inner wall layer through the gas discharged from the air outlet through-hole, reducing the adhesion amount of the resin.

[0011] After stirring is completed, switch the three-way valve to make the three-way valve, the radiator and the gas space communicate, and then cool the mixed plastic particles and resin in the sealed space and pour them out.

[0012] The beneficial effects of the present invention are as follows: Through the gas space between the inner wall layer and the support layer, in cooperation with the air pump, the gas in the sealed space can be circulated. At the same time, the circulated gas can blow up and expand the liquid resin adhering to the inner wall of the cylinder through the air outlet holes, just like blowing a balloon or chewing gum, greatly increasing the contact area with the plastic particles being stirred, thereby enhancing the mixing effect. At the same time, the blown gas will form an air film on the surface of the inner wall layer. Due to the existence of the air film, the liquid resin is not easily adhered to the surface of the inner wall layer, and thus the liquid resin is more likely to be mixed with the plastic particles, further improving the mixing effect. At the same time, the frustum-shaped air outlet holes with the larger end facing the gas space can compress the gas when it passes through, thereby making the gas flow faster, making it easy to blow open and burst the liquid resin, and the expanded and burst resin splashes towards the center of the sealed space, avoiding the liquid resin being thrown out of the center of the stirring under the condition of centrifugal stirring, ensuring the stirring and mixing effect. The gas circulation improves the heat uniformity effect and the heat conduction effect. The support layer and the support columns are made of heat-conducting materials, which can bring the heat of the heating layer into the sealed space faster. And the heated gas can make the viscosity of the liquid resin lower, making it easier to splash. And the filter can collect tiny plastic particles, and at the same time filter out the toxic and harmful gases generated during the processing of the resin and the plastic, avoiding blocking the air outlet holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of a feeding, mixing and stirring device for making plastic bonding resin according to a specific embodiment of the present invention;

[0014] Figure 2 It is a schematic structural diagram of the stirring blade of a feeding, mixing and stirring device for making plastic bonding resin according to a specific embodiment of the present invention;

[0015] Figure 3 It is a schematic working principle diagram of a feeding, mixing and stirring device for making plastic bonding resin according to a specific embodiment of the present invention;

[0016] Reference numerals: 1, stirring cylinder; 11, cylinder body; 111, sealed space; 112, inner wall layer; 113, support layer; 114, heating layer; 115, heat insulation layer; 116, outer shell layer; 117, support column; 118, gas space; 119, air outlet hole; 12, cover body; 13, air outlet; 14, mounting seat; 15, pressure balance valve; 16, observation window; 17, feeding port; 18, handle; 2, stirring blade; 21, inner shaft; 22, outer shaft; 23, frame; 24, first helical gear; 25, second helical gear; 26, third helical gear; 27, baffle; 28, push plate; 3, stirring motor; 4, gas circulation assembly; 41, air pump; 42, filter; 43, three-way valve; 44, radiator. Detailed implementation mode

[0017] To describe in detail the technical content, achieved purpose and effects of the present invention, the following is described in conjunction with the implementation modes and with reference to the accompanying drawings.

[0018] Please refer to Figures 1 to 3 , a feeding, mixing and stirring device made of a plastic bonding resin, comprising a stirring cylinder 1, stirring blades 2, a stirring motor 3 and a gas circulation assembly 4;

[0019] The stirring cylinder 1 includes a cylinder body 11 and a cover body 12, and the cover body 12 is detachably covered on the cylinder body 11; when the cover body 12 and the cylinder body 11 are matched, the stirring cylinder 1 forms a sealed space 111; the cover body 12 is provided with a mounting hole and an air outlet hole 13, and a mounting seat 14 is arranged on the upper surface of the cover body 12; the cylinder body 11 sequentially includes an inner wall layer 112, a support layer 113, a heating layer 114, a heat preservation layer 115 and an outer shell layer 116 from inside to outside. There is a gap between the inner wall layer 112 and the support layer 113, and support columns 117 are arranged in the gap to connect the inner wall layer 112 and the support layer 113 to form a gas space 118; a plurality of frustum-shaped air outlet through holes 119 are arranged on the inner wall layer 112, and the larger end of the air outlet through hole 119 faces the gas space 118, and the air outlet through hole 119 faces the center of the sealed space 111; the support layer 113 and the support columns 117 are made of heat-conducting materials;

[0020] The gas circulation assembly 4 includes an air pump 41, a filter 42, a three-way valve 43 and a radiator 44, and the air outlet hole 13, the filter 42, the air pump 41, the three-way valve 43 and the gas space 118 are sequentially communicated; the three-way valve 43, the radiator 44 and the gas space 118 are sequentially connected;

[0021] The stirring blades 2 include a stirring shaft and blades. The stirring shaft is located inside the cylinder body 11, and one end passes through the mounting hole and is rotatably connected to the mounting hole; the stirring motor 3 is arranged on the mounting seat 14 and is in transmission connection with the stirring shaft;

[0022] When the feeding, mixing and stirring device made of the plastic bonding resin is stirring, open the cover body 12 to add solid plastic particles and resin into the cylinder body 11. After the feeding is completed and the cover body 12 is installed, the sealing of the sealed space 111 is realized. Start the stirring motor 3, the heating layer 114 and the gas circulation assembly 4. At the same time, make the air pump 41 communicate with the gas space through the three-way valve 43; the heating layer 114 heats to make the final state of the resin liquid. The stirring motor 3 drives the stirring blade 2 to stir the plastic particles and the resin, and makes part of the liquid resin adhere to the inner wall layer 112; the air pump 41 of the gas circulation assembly 4 sucks out the gas in the sealed space 111 through the air outlet hole 13, and then sends it into the gas space 118 through the filter 42 and the air pump 41, so that a negative pressure is generated in the sealed space 111 and a positive pressure is generated in the gas space 118, and a pressure difference is generated between the two, so that the liquid resin adhering to the inner wall of the cylinder body 11 is blown up and expanded towards the sealed space 111 by the pressure difference. The contact area between the expanded resin and the plastic particles increases, or the expanded liquid resin is stressed and broken, and the resin splashes towards the center of the sealed space 111; at the same time, the positive pressure generated in the gas space 118 forms an air film on the surface of the inner wall layer 112 through the gas outlet through hole 119, reducing the resin adhesion amount;

[0023] After the stirring is completed, switch the three-way valve 43 to make the three-way valve 43, the radiator 44 and the gas space 118 communicate, and then cool the mixed plastic particles and resin in the sealed space 111 and pour them out.

[0024] As can be seen from the above description, through the gas space 118 between the inner wall layer 112 and the support layer 113, in cooperation with the air pump 41, the gas in the sealed space 111 can be circulated. At the same time, the circulated gas can blow up and expand the liquid resin adhering to the inner wall of the cylinder 11 like blowing a balloon or chewing gum through the air outlet through-hole 119, greatly increasing the contact area with the plastic particles being stirred, thereby enhancing the mixing effect. At the same time, the blown gas will form an air film on the surface of the inner wall layer 112. Due to the existence of the air film, the liquid resin is not easily adhered to the surface of the inner wall layer 112, so that the liquid resin is more easily mixed with the plastic particles, further improving the mixing effect. At the same time, the frustum-shaped air outlet through-hole 119 with the larger end facing the gas space 118 can compress the gas when it passes through, thereby making the gas flow faster, making it easy to blow open and break the liquid resin, and the expanded and broken resin splashes towards the center of the sealed space 111, preventing the liquid resin from being thrown out of the center of the stirring under the condition of centrifugal stirring, ensuring the stirring and mixing effect. The gas circulation improves the heat uniformity effect and the heat conduction effect. The support layer 113 and the support column 117 are made of heat-conducting materials, which can bring the heat of the heating layer 114 into the sealed space 111 faster. And the heated gas can make the viscosity of the liquid resin lower and easier to splash. And the filter 42 can collect tiny plastic particles and filter out the toxic and harmful gases generated during the resin and plastic processing to prevent blocking the air outlet through-hole 119.

[0025] Further, the stirring shaft includes an inner shaft 21 and an outer shaft 22, and the inner shaft 21 and the outer shaft 22 are coaxially arranged;

[0026] The outer shaft 22 is sleeved outside the inner shaft 21, and a frame 23 is arranged on the part of the outer shaft 22 extending into the sealed space 111;

[0027] A first helical gear 24 is arranged on the part of the inner shaft 21 outside the sealed space 111, a second helical gear 25 is arranged on the part of the outer shaft 22 outside the sealed space 111, and the first helical gear 24 and the second helical gear 25 are arranged up and down; A third helical gear 26 that cooperates with the first helical gear 24 and the second helical gear 25 is arranged on the stirring motor 3;

[0028] The blades are arranged on the inner shaft 21 and the frame 23;

[0029] As can be seen from the above description, through the arrangement of the inner shaft 21 and the outer shaft 22, and in combination with the third helical gear 26 that cooperates with the first helical gear 24 and the second helical gear 25, it is possible to achieve different rotation directions of the inner and outer shafts 22 of the stirring shaft, that is, a counter-rotating paddle, thereby enhancing the stirring effect.

[0030] Further, a plurality of baffles 27 are provided on one side of the frame 23 facing the inner wall layer 112.

[0031] As can be seen from the above description, through the arrangement of the baffles 27, after the liquid resin is blown up, the baffles 27 can push some plastic particles to collide with the liquid resin, and at the same time, the liquid resin can be smoothed again, which is convenient for blowing and expanding.

[0032] Further, a push plate 28 is provided on the frame 23 facing the bottom of the cylinder body 11.

[0033] As can be seen from the above description, through the arrangement of the push plate 28, the push plate 28 can push the plastic particles, so as to realize the mixing with the liquid resin that accumulates at the bottom of the cylinder body 11 due to the action of gravity.

[0034] Further, the air pump 41 works intermittently.

[0035] As can be seen from the above description, through the intermittently working air pump 41, it is convenient for the liquid resin to have enough time to cover the position of the air outlet through hole 119, which is convenient for forming sputtering or blowing up the resin and convenient for mixing.

[0036] Further, a pressure balance valve 15 is also provided on the cover body 12;

[0037] After the stirring is completed, the three-way valve 43 is switched so that the three-way valve 43, the radiator 44 and the gas space 118 are connected, and then the mixed plastic particles and resin in the sealed space 111 are cooled. After the pressure balance valve 15 is opened, they are poured out.

[0038] As can be seen from the above description, through the pressure balance valve 15, the internal and external pressure balance can be achieved, avoiding the risk of opening caused by excessive internal pressure or the problem of being unable to open due to too low internal pressure.

[0039] Further, an observation window 16 is also provided on the cover body 12.

[0040] As can be seen from the above description, through the observation window 16, the internal situation can be observed, which is convenient for engineers to operate according to needs.

[0041] Further, an openable and closable feeding port 17 is also provided on the cover body 12.

[0042] As can be seen from the above description, through the feeding port 17, the ratio can be adjusted in time or materials can be supplemented.

[0043] Further, a plurality of handles 18 are respectively provided on the cover body 12 and the feeding port 17.

[0044] As can be seen from the above description, through the handles 18, it is convenient to open the cover body 12 or the feeding port 17.

[0045] Further, the surface of the inner wall layer 112 is polished. Example 1

[0046] A feeding, mixing and stirring device made of a plastic bonding resin, comprising a stirring cylinder 1, stirring blades 2, a stirring motor 3 and a gas circulation assembly 4;

[0047] The stirring cylinder 1 includes a cylinder body 11 and a cover body 12, and the cover body 12 is detachably covered on the cylinder body 11; when the cover body 12 and the cylinder body 11 are fitted, the stirring cylinder 1 forms a sealed space 111; the cover body 12 is provided with a mounting hole and an air outlet hole 13, and a mounting seat 14 is arranged on the upper surface of the cover body 12; the cylinder body 11 sequentially includes an inner wall layer 112, a support layer 113, a heating layer 114, a heat preservation layer 115 and an outer shell layer 116 from inside to outside. There is a gap between the inner wall layer 112 and the support layer 113, and support columns 117 are arranged in the gap to connect the inner wall layer 112 and the support layer 113 to form a gas space 118; a plurality of frustum-shaped air outlet through holes 119 are arranged on the inner wall layer 112, and the larger ends of the air outlet through holes 119 face the gas space 118, and the air outlet through holes 119 face the center of the sealed space 111; the support layer 113 and the support columns 117 are made of heat-conducting materials;

[0048] The gas circulation assembly 4 includes an air pump 41, a filter 42, a three-way valve 43 and a radiator 44, and the air outlet hole 13, the filter 42, the air pump 41, the three-way valve 43 and the gas space 118 are sequentially communicated; the three-way valve 43, the radiator 44 and the gas space 118 are sequentially connected;

[0049] The stirring blades 2 include a stirring shaft and blades. The stirring shaft is located inside the cylinder body 11, and one end passes through the mounting hole and is rotatably connected to the mounting hole; the stirring motor 3 is arranged on the mounting seat 14 and is in transmission connection with the stirring shaft;

[0050] When the feeding, mixing and stirring device made of the plastic bonding resin is stirring, open the cover body 12 to add solid plastic particles and resin into the cylinder body 11. After pouring is completed and the cover body 12 is installed, the sealing of the sealed space 111 is realized. Start the stirring motor 3, the heating layer 114 and the gas circulation component 4, and at the same time make the air pump 41 communicate with the gas space through the three-way valve 43; the heating layer 114 heats to make the final state of the resin be liquid state. The stirring motor 3 drives the stirring blade 2 to stir the plastic particles and the resin and makes part of the liquid resin adhere to the inner wall layer 112; the air pump 41 of the gas circulation component 4 sucks out the gas in the sealed space 111 through the air outlet hole 13 and then sends it into the gas space 118 after passing through the filter 42 and the air pump 41, so that a negative pressure is generated in the sealed space 111 and a positive pressure is generated in the gas space 118, and a pressure difference is generated between the two, so that the liquid resin adhering to the inner wall of the cylinder body 11 is blown up and expanded towards the sealed space 111 under the action of the pressure difference. The contact area between the expanded resin and the plastic particles increases, or the expanded liquid resin is forced to expand and break and sputter the resin towards the center of the sealed space 111; at the same time, the positive pressure generated in the gas space 118 forms an air film on the surface of the inner wall layer 112 through the air outlet through-hole 119, reducing the adhesion amount of the resin;

[0051] After stirring is completed, switch the three-way valve 43 to make the three-way valve 43, the radiator 44 and the gas space 118 communicate, and then cool the mixed plastic particles and resin in the sealed space 111 and pour them out.

[0052] The stirring shaft includes an inner shaft 21 and an outer shaft 22, and the inner shaft 21 and the outer shaft 22 are coaxially arranged;

[0053] The outer shaft 22 is sleeved outside the inner shaft 21, and a frame 23 is arranged on the part of the outer shaft 22 extending into the sealed space 111;

[0054] A first helical gear 24 is arranged on the part of the inner shaft 21 outside the sealed space 111, a second helical gear 25 is arranged on the part of the outer shaft 22 outside the sealed space 111, and the first helical gear 24 and the second helical gear 25 are arranged up and down; a third helical gear 26 is arranged on the stirring motor 3 and is matched with the first helical gear 24 and the second helical gear 25;

[0055] The blades are arranged on the inner shaft 21 and the frame 23;

[0056] A plurality of baffle plates 27 are arranged on one side of the frame 23 facing the inner wall layer 112.

[0057] A push plate 28 is arranged on the frame 23 facing the bottom of the cylinder body 11.

[0058] The air pump 41 works intermittently.

[0059] A pressure balance valve 15 is further provided on the cover body 12;

[0060] After the stirring is completed, the three-way valve 43 is switched so that the three-way valve 43, the radiator 44 and the gas space 118 are communicated, and then the mixed plastic particles and resin in the sealed space 111 are cooled. After that, the pressure balance valve 15 is opened and then the mixture is poured out.

[0061] An observation window 16 is further provided on the cover body 12.

[0062] An openable and closable feeding port 17 is further provided on the cover body 12.

[0063] A plurality of handles 18 are respectively provided on the cover body 12 and the feeding port 17.

[0064] The surface of the inner wall layer 112 is polished.

[0065] A feeding, mixing and stirring device made of a plastic bonding resin is used for mixing solid plastics (such as polyethylene, polypropylene, etc.) with polyurethane resin, which can improve some properties of the polyurethane resin, such as hardness, adhesion, etc.; since plastics or resins do not have the characteristic of a fixed melting point, to avoid the solution being unclear, we take polyethylene as an example. Polyethylene is a colorless liquid with low molecular weight and a colorless milky white waxy granule (plastic particle) with high molecular weight. Therefore, when we mix, according to the actual situation, for example, the heating temperature of the heating layer 114 is 100 °C, and it is okay for the solid plastic particles to be solid before heating. Whether the resin is in a solid state, a liquid state or a semi-solid state, and at 100 °C, it is necessary to ensure that the solid plastic particles are still in a solid state and the resin is in a liquid state. The solid polyethylene plastic particles need to be ensured to be still in a solid state at 100 °C (the actual temperature needs to be adjusted according to the characteristics of the product, and this is only for example here), and the polyurethane resin is in a liquid state. Embodiment 2

[0066] A feeding, mixing and stirring device made of a plastic bonding resin, comprising a stirring cylinder 1, stirring blades 2, a stirring motor 3 and a gas circulation assembly 4;

[0067] The mixing drum 1 includes a cylinder body 11 and a cover body 12, and the cover body 12 is detachably covered on the cylinder body 11; when the cover body 12 and the cylinder body 11 are fitted, the mixing drum 1 forms a sealed space 111; the cover body 12 is provided with a mounting hole and an air outlet hole 13, and a mounting seat 14 is arranged on the upper surface of the cover body 12; the cylinder body 11 sequentially includes an inner wall layer 112, a support layer 113, a heating layer 114, a heat insulation layer 115 and an outer shell layer 116 from inside to outside. There is a gap between the inner wall layer 112 and the support layer 113, and support columns 117 are arranged in the gap to connect the inner wall layer 112 and the support layer 113 to form a gas space 118; a plurality of frustum-shaped air outlet through holes 119 are arranged on the inner wall layer 112, the larger end of the air outlet through hole 119 faces the gas space 118, and the air outlet through hole 119 faces the center of the sealed space 111; the support layer 113 and the support columns 117 are made of heat-conducting materials;

[0068] The gas circulation assembly 4 includes an air pump 41, a filter 42, a three-way valve 43 and a radiator 44. The air outlet hole 13, the filter 42, the air pump 41, the three-way valve 43 and the gas space 118 are sequentially communicated; the three-way valve 43, the radiator 44 and the gas space 118 are sequentially connected;

[0069] The mixing blade 2 includes a mixing shaft and blades. The mixing shaft is located inside the cylinder body 11, and one end passes through the mounting hole and is rotatably connected to the mounting hole; the mixing motor 3 is arranged on the mounting seat 14 and is in transmission connection with the mixing shaft;

[0070] When the feeding and mixing stirring device made of the plastic bonding resin is stirring, the cover body 12 is opened to add solid plastic particles and resin into the cylinder body 11. After the feeding is completed and the cover body 12 is installed, the sealed space 111 is sealed. The mixing motor 3, the heating layer 114 and the gas circulation assembly 4 are started, and at the same time, the air pump 41 and the gas space are communicated through the three-way valve 43; the heating layer 114 heats to make the final state of the resin liquid state. The mixing motor 3 drives the mixing blade 2 to stir the plastic particles and the resin and makes part of the liquid resin adhere to the inner wall layer 112; the air pump 41 of the gas circulation assembly 4 sucks the gas in the sealed space 111 through the air outlet hole 13, and then sends it into the gas space 118 through the filter 42 and the air pump 41, so that a negative pressure is generated in the sealed space 111 and a positive pressure is generated in the gas space 118. A pressure difference is generated between the two, so that the liquid resin adhering to the inner wall of the cylinder body 11 is blown up and expanded towards the sealed space 111 by the pressure difference. The contact area between the expanded resin and the plastic particles increases, or the expanded liquid resin is forced to expand and break and sputter the resin towards the center of the sealed space 111; at the same time, the positive pressure generated in the gas space 118 forms an air film on the surface of the inner wall layer 112 through the discharged gas from the air outlet through hole 119, reducing the adhesion amount of the resin;

[0071] After the stirring is completed, the three-way valve 43 is switched so that the three-way valve 43, the radiator 44 and the gas space 118 are connected, and then the mixed plastic particles and resin in the sealed space 111 are cooled and then poured out.

[0072] The stirring shaft includes an inner shaft 21 and an outer shaft 22, and the inner shaft 21 and the outer shaft 22 are coaxially arranged;

[0073] The outer shaft 22 is sleeved outside the inner shaft 21, and a frame 23 is arranged on the part of the outer shaft 22 extending into the sealed space 111;

[0074] A first helical gear 24 is arranged on the part of the inner shaft 21 outside the sealed space 111, a second helical gear 25 is arranged on the part of the outer shaft 22 outside the sealed space 111, and the first helical gear 24 and the second helical gear 25 are arranged up and down; a third helical gear 26 that cooperates with the first helical gear 24 and the second helical gear 25 is arranged on the stirring motor 3;

[0075] The blades are arranged on the inner shaft 21 and the frame 23;

[0076] A plurality of baffles 27 are arranged on the side of the frame 23 facing the inner wall layer 112.

[0077] A push plate 28 is arranged on the frame 23 facing the bottom of the cylinder body 11.

[0078] A pressure balance valve 15 is further arranged on the cover body 12;

[0079] After the stirring is completed, the three-way valve 43 is switched so that the three-way valve 43, the radiator 44 and the gas space 118 are connected, and then the mixed plastic particles and resin in the sealed space 111 are cooled, and then the pressure balance valve 15 is opened and then poured out.

[0080] The surface of the inner wall layer 112 is polished.

[0081] A feeding and mixing and stirring device made of a plastic bonding resin is used for mixing solid plastics (such as polyvinyl chloride, polystyrene, etc.) with epoxy resin, which can improve the toughness, impact resistance and processing performance of the epoxy resin; when the solid plastic is at 100 °C (the actual temperature needs to be adjusted according to the characteristics of the product, and only used as an example here, and the principle is the same as the corresponding part of the first embodiment), it is necessary to ensure that the solid plastic remains solid and the epoxy resin is in a liquid state.

[0082] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A feeding mixing and stirring device made of plastic adhesive resin, characterized in that: It includes a mixing drum, a mixing blade, a mixing motor and a gas circulation component; The mixing drum comprises a drum body and a cover body, wherein the cover body is detachably mounted on the drum body; when the cover body and the drum body cooperate, the mixing drum is a sealed space; the cover body is provided with a mounting hole and an air outlet hole, and a mounting seat is provided on the upper surface of the cover body; the drum body comprises an inner wall layer, a support layer, a heating layer, a heat-insulating layer and an outer shell layer from the inside to the outside, and there is a gap between the inner wall layer and the support layer, and a support column is provided in the gap to connect the inner wall layer and the support layer to form a gas space; a plurality of truncated cone-shaped air outlet holes are provided on the inner wall layer, and the larger end of the air outlet hole faces the gas space, and the air outlet hole faces the center of the sealed space; the support layer and the support column are made of heat-conductive material; The gas circulation assembly comprises an air pump, a filter, a three-way valve and a radiator, wherein the air outlet, the filter, the air pump, the three-way valve and the gas space are connected in sequence; the three-way valve, the radiator and the gas space are connected in sequence; The stirring blade comprises a stirring shaft and a blade, wherein the stirring shaft is located in the cylinder, one end of which passes through the mounting hole and is rotatably connected to the mounting hole; the stirring motor is arranged on the mounting seat and is transmission-connected to the stirring shaft; When the feeding, mixing and stirring device made of the plastic adhesive resin is stirred, the cover body is opened to add solid plastic particles and resin into the cylinder, and after the material is poured and the cover body is installed to achieve the sealing of the sealed space, the stirring motor, the heating layer and the gas circulation component are started, and the air pump and the gas space are connected through the three-way valve; the heating layer is heated to make the final state of the resin liquid, and the stirring motor drives the stirring blades to stir the plastic particles and the resin and make part of the liquid resin adhere to the inner wall layer; the air pump of the gas circulation component sucks out the gas in the sealed space through the air outlet hole and then sends it into the gas space after passing through the filter and the air pump, so that negative pressure is generated in the sealed space and positive pressure is generated in the gas space, and a pressure difference is generated between the two, so that the liquid resin adhered to the inner wall of the cylinder is forced to be blown up and expanded in the sealed space due to the pressure difference, and the contact area between the expanded resin and the plastic particles is increased or the expanded liquid resin is forced to expand and rupture, and the resin is sputtered toward the center of the sealed space; at the same time, the positive pressure generated in the gas space and the gas discharged through the air outlet hole form an air film on the surface of the inner wall layer, thereby reducing the amount of resin adhesion; After the stirring is completed, the three-way valve is switched so that the three-way valve, the radiator and the gas space are connected, and the mixed plastic particles and resin in the sealed space are cooled and poured out; The stirring shaft comprises an inner shaft and an outer shaft, and the inner shaft and the outer shaft are coaxially arranged; The outer shaft is sleeved outside the inner shaft, and a frame is provided on the portion of the outer shaft extending into the sealed space; The portion of the inner shaft outside the sealed space is provided with a first bevel gear, the portion of the outer shaft outside the sealed space is provided with a second bevel gear, the first bevel gear and the second bevel gear are arranged up and down; the stirring motor is provided with a third bevel gear that cooperates with the first bevel gear and the second bevel gear; The blades are arranged on the inner shaft and the frame; A plurality of baffles are arranged on one side of the frame facing the inner wall layer; The air pump works intermittently.

2. The feeding, mixing and stirring device made of plastic adhesive resin according to claim 1, characterized in that: The frame is provided with a push plate on the bottom of the cylinder.

3. The feeding, mixing and stirring device made of plastic adhesive resin according to claim 1, characterized in that: The cover body is also provided with a pressure balancing valve; After the stirring is completed, the three-way valve is switched to connect the three-way valve, the radiator and the gas space, and then the mixed plastic particles and resin in the sealed space are cooled down, and then the pressure balance valve is opened and poured out.

4. The feeding, mixing and stirring device made of plastic adhesive resin according to claim 1, characterized in that: The cover body is also provided with an observation window.

5. The feeding, mixing and stirring device made of plastic adhesive resin according to claim 1, characterized in that: The cover body is also provided with a feeding port which can be opened and closed.

6. The feeding, mixing and stirring device made of plastic adhesive resin according to claim 5, characterized in that: The cover body and the feeding port are respectively provided with a plurality of handles.

7. The feeding, mixing and stirring device made of plastic adhesive resin according to claim 1, characterized in that: The surface of the inner wall layer is polished.

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