Feeding, mixing and stirring device for manufacturing plastic adhesive resin

Abstract

The invention relates to the technical field of mixing and stirring, in particular to a feeding, mixing and stirring device for plastic adhesive resin manufacturing, which comprises a stirring barrel, stirring blades, a stirring motor and a gas circulation assembly, the stirring barrel comprises a barrel body and a cover body, a gas outlet is formed in the cover body, the barrel body sequentially comprises an inner wall layer, a supporting layer and a heating layer from inside to outside, and a gap is formed between the inner wall layer and the supporting layer to form a gas space; a plurality of circular-truncated-cone-shaped air outlet through holes are formed in the inner wall layer; the gas circulation assembly comprises a gas pump communicated with the gas outlet hole and the gas space; gas circulation is achieved through the gas space between the inner wall layer and the supporting layer in cooperation with a gas pump, liquid resin attached to the inner wall of the barrel can be blown to expand, and the contact area with plastic particles is increased; the blown gas can form a gas film on the surface of the inner wall layer, and due to the existence of the gas film, the liquid resin is not easy to adhere to the surface of the inner wall layer, so that the mixing effect is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of mixing and stirring, and in particular to a material adding, mixing and stirring device made of plastic bonding resin. Background Art

[0002] At present, the mixers for plastic products are relatively large in size, and mixing and stirring are often used in the process of mixing solid plastic particles with solid, semi-solid, and liquid resins. The mixing and stirring devices in the prior art generally include stirring blades and stirring barrels. 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; when the stirring device is stirring, there is also a phenomenon of frictional heat generation between the materials. At the same time, the resin is mostly liquid (or the final form after heating is liquid), which causes the resin to melt when heated or is liquid itself, and it will adhere to the inner wall of the stirring barrel and cannot be stirred by the stirring blades, resulting in poor stirring effect or uneven stirring, which in turn leads to poor product quality.

[0003] Based on this use, the market is in urgent need of a material adding, mixing and stirring device made of plastic adhesive 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 material adding, mixing and stirring device made of plastic adhesive resin which can make the mixture uniform.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A material adding, mixing and stirring device made of plastic bonding resin, comprising a stirring drum, stirring blades, a stirring 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 body, and after the material is poured and the cover body is installed, the sealing of the sealed space is realized, and the stirring motor, the heating layer and the gas circulation component are started, and the air pump and the cylinder 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 blade 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 then poured out.

[0006] The beneficial effects of the present invention are as follows: through the gas space between the inner wall layer and the support layer, in conjunction with an air pump, the gas in the sealed space can be circulated, and at the same time, the circulated gas can blow up and expand the liquid resin adhering to the inner wall of the cylinder like blowing a balloon or blowing bubble gum through the air outlet holes, so that the contact area with the plastic particles being stirred is greatly increased, thereby increasing 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 easy to adhere to the surface of the inner wall layer, and the liquid resin is easier to mix with the plastic particles, thereby further improving the mixing effect; at the same time, the frustum-shaped air outlet holes with the larger end facing the gas space, The gas can be compressed when passing through, thereby making the gas flow faster, making the liquid resin easy to be blown open and broken, and the expansion and rupture will splash the resin toward the center of the sealed space, preventing the liquid resin from being thrown out of the stirring center during centrifugal stirring, resulting in uneven stirring, thereby ensuring the stirring and mixing effect; the gas circulation improves the uniform heating effect and the heat conduction effect, and the support layer and the support column are thermally conductive materials that can bring the heat of the heating layer into the sealed space faster, and the heated gas can make the liquid resin less viscous and easier to splash, and the filter can collect tiny plastic particles and filter out toxic and harmful gases generated during resin and plastic processing to avoid clogging the air outlet holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural schematic diagram of a feeding, mixing and stirring device made of a plastic adhesive resin according to a specific embodiment of the present invention; Figure 2 A schematic diagram of the structure of a stirring blade of a feeding, mixing and stirring device made of a plastic adhesive resin according to a specific embodiment of the present invention; Figure 3 A schematic diagram of the working principle of a feeding, mixing and stirring device made of a plastic adhesive resin according to a specific embodiment of the present invention; Explanation of reference numerals: 1. Mixing drum; 11. Cylinder body; 111. Sealed space; 112. Inner wall layer; 113. Support layer; 114. Heating layer; 115. Insulation layer; 116. Outer shell layer; 117. Support column; 118. Gas space; 119. Air outlet hole; 12. Cover body; 13. Air outlet hole; 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 bevel gear; 25. Second bevel gear; 26. Third bevel 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 DESCRIPTION

[0008] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0009] Please refer to Figures 1 to 3 , a feeding mixing and stirring device made of plastic bonding resin, comprising a stirring drum 1, a stirring blade 2, a stirring motor 3 and a gas circulation component 4; The mixing drum 1 comprises a drum body 11 and a cover body 12, wherein the cover body 12 is detachably mounted on the drum body 11; when the cover body 12 and the drum body 11 are matched, the mixing drum 1 forms a sealed space 111; the cover body 12 is provided with a mounting hole and an air outlet 13, and a mounting seat 14 is provided on the upper surface of the cover body 12; the drum body 11 comprises an inner wall layer 112, a support layer 113, a heating layer 114, a heat-insulating layer 115 and an outer shell layer 116 from the inside to the outside. There is a gap between the inner wall layer 112 and the support layer 113, and a support column 117 is provided in the gap to connect the inner wall layer 112 and the support layer 113 to form a gas space 118; a plurality of truncated cone-shaped gas outlet holes 119 are provided on the inner wall layer 112, and the larger end of the gas outlet holes 119 faces the gas space 118, and the gas outlet holes 119 face the center of the sealed space 111; the support layer 113 and the support column 117 are made of heat conductive material; 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 13, the filter 42, the air pump 41, the three-way valve 43 and the gas space 118 are connected in sequence; the three-way valve 43, the radiator 44 and the gas space 118 are connected in sequence; The stirring blade 2 includes a stirring shaft and a blade. The stirring shaft is located in the cylinder 11, and one end of the stirring shaft 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 transmission-connected to the stirring shaft. When the feeding, mixing and stirring device made of the plastic adhesive resin is stirring, the cover body 12 is opened to add solid plastic particles and resin into the cylinder body 11, and after the material is poured, the cover body 12 is installed to achieve the sealing of the sealed space 111, and the stirring motor 3, the heating layer 114 and the gas circulation component 4 are started, and the air pump 41 and the cylinder space are connected through the three-way valve 43; the heating layer 114 heats the resin so that the final state of the resin is liquid, and the stirring motor 3 drives the stirring blade 2 to stir the plastic particles and the resin so that part of the liquid resin adheres to the inner wall layer 112; the air pump 41 of the gas circulation component 4 pushes the gas in the sealed space 111 The liquid resin adhered to the inner wall of the cylinder 11 is blown up and expanded into the sealed space 111 by the pressure difference, and the contact area between the expanded resin and the plastic particles increases or the expanded liquid resin is expanded and ruptured by the force, and the resin is sputtered toward the center of the sealed space 111; at the same time, the positive pressure in the gas space 118 is generated, and the gas discharged through the gas outlet hole 119 forms an air film on the surface of the inner wall layer 112, thereby reducing the amount of resin attached; 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 poured out.

[0010] From the above description, it can be known that through the gas space 118 between the inner wall layer 112 and the support layer 113, in conjunction with the air pump 41, the gas in the sealed space 111 can be circulated, and at the same time, the circulated gas can blow up the liquid resin adhering to the inner wall of the cylinder 11 through the air outlet hole 119 like blowing a balloon or blowing bubble gum, so that the contact area with the stirring plastic particles is greatly increased, thereby increasing 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 easy to adhere to the surface of the inner wall layer 112, and the liquid resin is easier to mix with the plastic particles, thereby further improving the mixing effect; at the same time, the frustum-shaped air outlet hole 119 and the larger end thereof are facing the gas space 118, which can compress the gas when it passes through, thereby making the gas flow faster, making the liquid resin easy to be blown open and broken, and the expansion and rupture splashes the resin toward the center of the sealed space 111, avoiding the liquid resin being thrown out of the stirring center during centrifugal stirring, resulting in uneven stirring, and ensuring the stirring and mixing effect; the gas circulation improves the uniform heating effect and the heat conduction effect, the support layer 113 and the support column 117 are heat-conducting materials that can bring the heat of the heating layer 114 to the sealed space 111 faster, and the heated gas can make the liquid resin less viscous and easier to splash, and the filter 42 can collect tiny plastic particles and filter out toxic and harmful gases generated during resin and plastic processing to avoid clogging the air outlet hole 119.

[0011] Furthermore, 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; The outer shaft 22 is sleeved outside the inner shaft 21, and a frame 23 is provided on the portion of the outer shaft 22 extending into the sealed space 111; The inner shaft 21 is provided with a first bevel gear 24 on the portion outside the sealed space 111, and the outer shaft 22 is provided with a second bevel gear 25 on the portion outside the sealed space 111, and the first bevel gear 24 and the second bevel gear 25 are arranged up and down; the stirring motor 3 is provided with a third bevel gear 26 that cooperates with the first bevel gear 24 and the second bevel gear 25; The blades are arranged on the inner shaft 21 and the frame 23; From the above description, it can be seen that through the setting of the inner shaft 21 and the outer shaft 22, in combination with the third bevel gear 26 that cooperates with the first bevel gear 24 and the second bevel gear 25, the inner and outer shafts 22 of the stirring shaft can rotate in different directions, that is, reverse paddles, thereby improving the stirring effect.

[0012] Furthermore, a plurality of blocking pieces 27 are provided on a side of the frame 23 facing the inner wall layer 112 .

[0013] From the above description, it can be seen that through the setting of the baffle 27, after the liquid resin is blown up, some plastic particles can be pushed by the baffle 27 to collide with the liquid resin, and at the same time, the liquid resin can be smoothed again to facilitate blowing and expansion.

[0014] Furthermore, a push plate 28 is provided on the frame 23 facing the bottom of the cylinder 11 .

[0015] It can be seen from the above description that, by disposing the push plate 28 , the push plate 28 can push the plastic particles, thereby achieving mixing with the liquid resin gathered at the bottom of the cylinder 11 due to gravity.

[0016] Furthermore, the air pump 41 works intermittently.

[0017] From the above description, it can be known that by using the intermittently working air pump 41, the liquid resin can have enough time to cover the position of the air outlet hole 119, so as to facilitate the sputtering or blowing of the resin and facilitate mixing.

[0018] Furthermore, a pressure balancing valve 15 is also provided on the cover body 12; 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 down and the pressure balance valve 15 is opened to pour them out.

[0019] From the above description, it can be known that the pressure balancing valve 15 can achieve internal and external pressure balance, avoiding the risk of opening due to excessive internal pressure or the problem of being unable to open due to too low internal pressure.

[0020] Furthermore, the cover body 12 is also provided with an observation window 16 .

[0021] It can be seen from the above description that the internal situation can be observed through the observation window 16, which is convenient for engineers to operate according to needs.

[0022] Furthermore, the cover body 12 is also provided with a feed port 17 which can be opened and closed.

[0023] It can be seen from the above description that the proportion can be adjusted or the material can be supplemented in time through the feeding port 17.

[0024] Furthermore, a plurality of handles 18 are respectively provided on the cover body 12 and the feeding port 17 .

[0025] It can be seen from the above description that the handle 18 can facilitate the opening of the cover body 12 or the opening of the feeding port 17 .

[0026] Furthermore, the surface of the inner wall layer 112 is polished. Embodiment 1

[0027] A material adding, mixing and stirring device made of plastic bonding resin, comprising a stirring drum 1, a stirring blade 2, a stirring motor 3 and a gas circulation component 4; The mixing drum 1 comprises a drum body 11 and a cover body 12, wherein the cover body 12 is detachably mounted on the drum body 11; when the cover body 12 and the drum body 11 are matched, the mixing drum 1 forms a sealed space 111; the cover body 12 is provided with a mounting hole and an air outlet 13, and a mounting seat 14 is provided on the upper surface of the cover body 12; the drum body 11 comprises an inner wall layer 112, a support layer 113, a heating layer 114, a heat-insulating layer 115 and an outer shell layer 116 from the inside to the outside. There is a gap between the inner wall layer 112 and the support layer 113, and a support column 117 is provided in the gap to connect the inner wall layer 112 and the support layer 113 to form a gas space 118; a plurality of truncated cone-shaped gas outlet holes 119 are provided on the inner wall layer 112, and the larger end of the gas outlet holes 119 faces the gas space 118, and the gas outlet holes 119 face the center of the sealed space 111; the support layer 113 and the support column 117 are made of heat conductive material; 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 13, the filter 42, the air pump 41, the three-way valve 43 and the gas space 118 are connected in sequence; the three-way valve 43, the radiator 44 and the gas space 118 are connected in sequence; The stirring blade 2 includes a stirring shaft and a blade. The stirring shaft is located in the cylinder 11, and one end of the stirring shaft 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 transmission-connected to the stirring shaft. When the feeding, mixing and stirring device made of the plastic adhesive resin is stirring, the cover body 12 is opened to add solid plastic particles and resin into the cylinder body 11, and after the material is poured, the cover body 12 is installed to achieve the sealing of the sealed space 111, and the stirring motor 3, the heating layer 114 and the gas circulation component 4 are started, and the air pump 41 and the cylinder space are connected through the three-way valve 43; the heating layer 114 heats the resin so that the final state of the resin is liquid, and the stirring motor 3 drives the stirring blade 2 to stir the plastic particles and the resin so that part of the liquid resin adheres to the inner wall layer 112; the air pump 41 of the gas circulation component 4 pushes the gas in the sealed space 111 The liquid resin adhered to the inner wall of the cylinder 11 is blown up and expanded into the sealed space 111 by the pressure difference, and the contact area between the expanded resin and the plastic particles increases or the expanded liquid resin is expanded and ruptured by the force, and the resin is sputtered toward the center of the sealed space 111; at the same time, the positive pressure in the gas space 118 is generated, and the gas discharged through the gas outlet hole 119 forms an air film on the surface of the inner wall layer 112, thereby reducing the amount of resin attached; 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 poured out.

[0028] The stirring shaft comprises an inner shaft 21 and an outer shaft 22, and the inner shaft 21 and the outer shaft 22 are coaxially arranged; The outer shaft 22 is sleeved outside the inner shaft 21, and a frame 23 is provided on the portion of the outer shaft 22 extending into the sealed space 111; The inner shaft 21 is provided with a first bevel gear 24 on the portion outside the sealed space 111, and the outer shaft 22 is provided with a second bevel gear 25 on the portion outside the sealed space 111, and the first bevel gear 24 and the second bevel gear 25 are arranged up and down; the stirring motor 3 is provided with a third bevel gear 26 that cooperates with the first bevel gear 24 and the second bevel gear 25; The blades are arranged on the inner shaft 21 and the frame 23; A plurality of blocking pieces 27 are disposed on a side of the frame 23 facing the inner wall layer 112 .

[0029] The frame 23 is provided with a push plate 28 on the bottom facing the cylinder 11 .

[0030] The air pump 41 works intermittently.

[0031] The cover body 12 is also provided with a pressure balance valve 15; 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 down and the pressure balance valve 15 is opened to pour them out.

[0032] The cover body 12 is also provided with an observation window 16 .

[0033] The cover body 12 is also provided with a feed port 17 which can be opened and closed.

[0034] The cover body 12 and the feeding port 17 are respectively provided with a plurality of handles 18 .

[0035] The surface of the inner wall layer 112 is polished.

[0036] A feeding mixing and stirring device made of a plastic adhesive resin is used to mix solid plastics (such as polyethylene, polypropylene, etc.) with polyurethane resin, which can improve certain properties of polyurethane resin, such as hardness, adhesion, etc.; since plastics or resins do not have the characteristics of a fixed melting point, in order to avoid unclear cases, we take polyethylene as an example. Polyethylene is a colorless liquid at low molecular weight and colorless milky white waxy particles (plastic particles) at 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 the solid plastic particles before heating are solid, whether the resin is solid, liquid or semi-solid, and at 100°C, it is necessary to ensure that the solid plastic particles are still solid and the resin is liquid. At 100°C (the actual temperature needs to be adjusted according to the characteristics of the product, and is only used as an example here), the solid polyethylene plastic particles need to be solid and the polyurethane resin needs to be liquid. Embodiment 2

[0037] A material adding, mixing and stirring device made of plastic bonding resin, comprising a stirring drum 1, a stirring blade 2, a stirring motor 3 and a gas circulation component 4; The mixing drum 1 comprises a drum body 11 and a cover body 12, wherein the cover body 12 is detachably mounted on the drum body 11; when the cover body 12 and the drum body 11 are matched, the mixing drum 1 forms a sealed space 111; the cover body 12 is provided with a mounting hole and an air outlet 13, and a mounting seat 14 is provided on the upper surface of the cover body 12; the drum body 11 comprises an inner wall layer 112, a support layer 113, a heating layer 114, a heat-insulating layer 115 and an outer shell layer 116 from the inside to the outside. There is a gap between the inner wall layer 112 and the support layer 113, and a support column 117 is provided in the gap to connect the inner wall layer 112 and the support layer 113 to form a gas space 118; a plurality of truncated cone-shaped gas outlet holes 119 are provided on the inner wall layer 112, and the larger end of the gas outlet holes 119 faces the gas space 118, and the gas outlet holes 119 face the center of the sealed space 111; the support layer 113 and the support column 117 are made of heat conductive material; 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 13, the filter 42, the air pump 41, the three-way valve 43 and the gas space 118 are connected in sequence; the three-way valve 43, the radiator 44 and the gas space 118 are connected in sequence; The stirring blade 2 includes a stirring shaft and a blade. The stirring shaft is located in the cylinder 11, and one end of the stirring shaft 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 transmission-connected to the stirring shaft. When the feeding, mixing and stirring device made of the plastic adhesive resin is stirring, the cover body 12 is opened to add solid plastic particles and resin into the cylinder body 11, and after the material is poured, the cover body 12 is installed to achieve the sealing of the sealed space 111, and the stirring motor 3, the heating layer 114 and the gas circulation component 4 are started, and the air pump 41 and the cylinder space are connected through the three-way valve 43; the heating layer 114 heats the resin so that the final state of the resin is liquid, and the stirring motor 3 drives the stirring blade 2 to stir the plastic particles and the resin so that part of the liquid resin adheres to the inner wall layer 112; the air pump 41 of the gas circulation component 4 pushes the gas in the sealed space 111 The liquid resin adhered to the inner wall of the cylinder 11 is blown up and expanded into the sealed space 111 by the pressure difference, and the contact area between the expanded resin and the plastic particles increases or the expanded liquid resin is expanded and ruptured by the force, and the resin is sputtered toward the center of the sealed space 111; at the same time, the positive pressure in the gas space 118 is generated, and the gas discharged through the gas outlet hole 119 forms an air film on the surface of the inner wall layer 112, thereby reducing the amount of resin attached; 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 poured out.

[0038] The stirring shaft comprises an inner shaft 21 and an outer shaft 22, and the inner shaft 21 and the outer shaft 22 are coaxially arranged; The outer shaft 22 is sleeved outside the inner shaft 21, and a frame 23 is provided on the portion of the outer shaft 22 extending into the sealed space 111; The inner shaft 21 is provided with a first bevel gear 24 on the portion outside the sealed space 111, and the outer shaft 22 is provided with a second bevel gear 25 on the portion outside the sealed space 111, and the first bevel gear 24 and the second bevel gear 25 are arranged up and down; the stirring motor 3 is provided with a third bevel gear 26 that cooperates with the first bevel gear 24 and the second bevel gear 25; The blades are arranged on the inner shaft 21 and the frame 23; A plurality of blocking pieces 27 are disposed on a side of the frame 23 facing the inner wall layer 112 .

[0039] The frame 23 is provided with a push plate 28 on the bottom facing the cylinder 11 .

[0040] The cover body 12 is also provided with a pressure balance valve 15; 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 down and the pressure balance valve 15 is opened to pour them out.

[0041] The surface of the inner wall layer 112 is polished.

[0042] A feeding mixing and stirring device made of a plastic adhesive resin is used to mix 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, it is only used as an example here, and the principle is the same as the corresponding part of Example 1), it is necessary to ensure that the solid plastic is still solid and the epoxy resin is liquid.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also 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 body, and after the material is poured and the cover body is installed, the sealing of the sealed space is realized, and the stirring motor, the heating layer and the gas circulation component are started, and the air pump and the cylinder 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 blade 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 then poured out.

2. The feeding, mixing and stirring device made of plastic adhesive resin according to claim 1, characterized in that: 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 on the frame.

3. The feeding, mixing and stirring device made of plastic adhesive resin according to claim 2, characterized in that: A plurality of baffles are arranged on one side of the frame facing the inner wall layer.

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

5. The feeding, mixing and stirring device made of plastic adhesive resin according to claim 2, characterized in that: The air pump works intermittently.

6. 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.

7. 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.

8. 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.

9. The feeding, mixing and stirring device made of plastic adhesive resin according to claim 8, characterized in that: The cover body and the feeding port are respectively provided with a plurality of handles.

10. 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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