Mixed feeding device of modified plastic extruder
By designing a modified mixed feed device in the plastic extrusion machine, including the stirring and extrusion device, the problem of uneven mixing and mixing and low discharge efficiency is solved, and higher product quality and equipment efficiency are achieved.
Patent Information
- Application Number
- CN202420965460.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-07
AI Technical Summary
In existing plastic extruders, uneven mixing and stirring and low discharge efficiency lead to unstable product quality and low equipment efficiency.
Design a modified plastic extruder mixed feeding device, including tanks, feeding devices, mixing devices and extrusion devices. Mix the uniformity of mixing stirring by the mixing blades and wall scraping blades. At the same time, the extrusion device is applied by the rotation and pressure of the squeezing axis and extrusion blocks to further stir and extract the material to avoid the problem of the difficulty of declining sticky materials.
Improved the uniformity of mixing and mixing and the production efficiency, avoided the short rotation of the extruder, and improved product quality and equipment processing efficiency.
Smart Images
Figure CN222407043U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of mixing and stirring equipment, in particular to a mixing and feeding device for a modified plastic extruder. Background Art
[0002] Plastic extruder is one of the widely used machines in the plastic processing industry. The quality of extruded plastic products and the speed of production efficiency depend on many factors, and the uniformity of mixing and stirring of the mixing and feeding device and the feeding efficiency are often one of the key influencing factors. In the prior art, after the mixing chamber is stirred once by the stirring device, it is directly discharged from the discharge port, which may cause uneven mixing and stirring. In addition, in the prior art, the mixing and stirring operation and the discharging operation after mixing are often serial processes, that is, after the mixing and stirring are completed, the raw material gravity is used to slide down freely and fall into the feed port of the extruder. For solid-liquid mixed materials, the mixed materials have a certain viscosity and are not easy to slide down freely. This method of discharging by gravity may cause the extruder to run idle, affecting the product quality; at the same time, the serial process of mixing and stirring operation and discharging operation after mixing has a certain impact on the processing efficiency of the equipment. If it can be optimized into a parallel process, and the operations do not affect each other, it will be helpful to improve the processing efficiency of the equipment. Utility Model Content
[0003] In view of the above-mentioned problems, the purpose of the utility model is to provide a mixing and feeding device for a modified plastic extruder, which is used to improve the uniformity of mixing and stirring, and at the same time improve the equipment processing efficiency of the mixing and feeding device for a modified plastic extruder.
[0004] The purpose of the utility model is achieved through the following technical solutions:
[0005] A mixed feeding device for a modified plastic extruder comprises: a tank body, comprising a mixing chamber and a storage chamber, wherein the storage chamber is located below the mixing chamber, a bottom plate opening and closing assembly is arranged at the bottom of the mixing chamber, and a discharge port is arranged below the storage chamber; a feeding device, wherein the feeding device is connected to the tank body and is used to supply raw materials into the mixing chamber; a stirring device, comprising a first driving unit, a transmission unit, a stirring shaft and a stirring blade, wherein the output end of the first driving unit is connected to the stirring shaft through the transmission unit, one end of the stirring shaft extends into the mixing chamber, and the stirring blade is arranged in the mixing chamber and connected to the stirring shaft; an extrusion device, comprising a second driving unit, a lifting unit, an extrusion shaft and an extrusion block, wherein the output end of the second driving unit is connected to the extrusion shaft, the second driving unit is used to drive the extrusion shaft to rotate, one end of the extrusion shaft extends into the storage chamber, the extrusion block is connected to one end of the extrusion shaft extending into the storage chamber, and the second driving unit is arranged on the lifting unit.
[0006] After the raw materials are mixed and stirred in the mixing chamber, the bottom plate opening and closing assembly is controlled to open, and the mixed materials fall into the storage chamber, and then the bottom plate opening and closing assembly is controlled to close. At the same time, the extrusion device starts, the extrusion shaft and the extrusion block rotate, and pressure is applied downward, which can not only further mix the fallen materials again to improve the uniformity of the mixture, but also squeeze the materials out from the discharge port to avoid the stickiness of the mixed materials, which makes it difficult to slide freely and fail to fall into the feed port of the extruder, thereby causing the extruder to run idle and affecting the product quality. When the extrusion device is operating, the feeding device can continue to add raw materials for mixing and stirring. The mixing and stirring operations and the discharging operations after mixing do not affect each other, which improves the efficiency of equipment processing.
[0007] Furthermore, the feeding device includes a solid feeding unit and a liquid feeding unit, the solid feeding unit includes a solid metering feeding device and a solid feeding port, the solid metering feeding device is connected to the mixing chamber through the solid feeding port, the liquid feeding unit includes a liquid metering feeding device and a liquid feeding port, the liquid metering feeding device is connected to the mixing chamber through the liquid feeding port, and a liquid atomization device is provided on the connection side of the liquid feed port and the mixing chamber.
[0008] Solid raw materials and liquid raw materials are added to the mixing chamber through the solid feeding unit and the liquid feeding unit respectively. The solid metering feeding device can detect the amount of solid raw materials added. When adding solid raw materials, it can double-check whether the amount of solid raw materials added deviates from the dosage standard, so as to achieve precise control of the amount of solid raw materials; the liquid metering feeding device can detect the amount of liquid raw materials added. When adding liquid raw materials, it can accurately control the amount of liquid entering the mixing chamber, so as to achieve precise control of the amount of liquid raw materials, while improving the convenience of users. The uniformity of the mixing can be improved by accurately controlling the proportion of solid and liquid dosage. A liquid atomization device is provided on the connecting side of the liquid feed port and the mixing chamber to atomize the liquid entering the mixing chamber so that the liquid can be evenly sprayed on the solid surface, which is beneficial to the uniformity of solid-liquid mixing and stirring.
[0009] Furthermore, the solid metering feeding device includes a feeding bin, a movable bottom plate, a weighing sensor and a telescopic drive unit, the weighing sensor is located below the movable bottom plate, the movable bottom plate is connected to the output end of the telescopic drive unit, and the telescopic drive unit is arranged on the top of the tank body.
[0010] After adding solid raw materials into the feeding bin, the amount of raw materials added is controlled by the weighing sensor. After meeting the dosage standard, the telescopic drive unit is controlled by the display operation screen to drive the movable bottom plate to move, and the solid raw materials are supplied to the mixing chamber.
[0011] The liquid metering feeding device includes a liquid storage tank, a liquid inlet pipe, a liquid pump and a flow sensor. The flow sensor is arranged on the liquid inlet pipe. One end of the liquid inlet pipe is connected to the liquid pump, and the other end of the liquid inlet pipe is connected to the liquid feed port.
[0012] When adding liquid raw materials, the liquid pump is controlled by the display operation screen to extract the liquid raw materials into the mixing chamber, and the liquid dosage is controlled by the flow sensor. When the dosage standard is met, the flow sensor feedbacks information and controls the liquid pump to stop working.
[0013] Furthermore, a support bearing seat is provided on the top of the tank body, and the stirring shaft passes through and is fixed on the support bearing seat.
[0014] A supporting bearing seat is installed on the top of the tank body and is provided with a through hole. The stirring shaft is fixed on the supporting bearing seat and extends into the mixing cavity through the through hole.
[0015] Furthermore, the stirring device also includes a wall scraping assembly, which includes a wall scraping blade, a support frame and an elastic connecting piece. The wall scraping blade is connected to one end of the support frame through an elastic connecting piece, and the end of the support frame away from the wall scraping blade is connected to the stirring shaft, and the wall scraping blade abuts against the inner wall of the mixing chamber.
[0016] In order to prevent the raw materials from sticking to the inner wall of the mixing chamber during stirring, the stirring device is provided with a wall scraper assembly, which enables the wall scraper blade to maintain good contact with the inner wall of the mixing chamber through an elastic connecting piece, so that the raw materials stuck to the inner wall of the mixing chamber can be scraped off.
[0017] Furthermore, the bottom plate opening and closing assembly includes a first opening and closing bottom plate, a second opening and closing bottom plate, a third drive unit and a fourth drive unit, the first opening and closing bottom plate is connected to the output end of the third drive unit, the second opening and closing bottom plate is connected to the output end of the fourth drive unit, the third drive unit and the fourth drive unit are fixed to the side wall of the tank body, and the first opening and closing bottom plate and the second opening and closing bottom plate are meshed and connected at the junction.
[0018] After the mixing and stirring is completed, the third driving unit and the fourth driving unit are controlled by the display operation screen to drive the first opening and closing bottom plate and the second opening and closing bottom plate to open respectively, and the mixed materials fall into the storage chamber by gravity. Then the opening and closing bottom plate is controlled to close, and raw materials can be added to continue the mixing operation.
[0019] Furthermore, the stirring shaft is a hollow cylindrical shaft, the extrusion shaft is coaxial with the stirring shaft, and the extrusion shaft passes through the stirring shaft and extends toward the storage cavity.
[0020] The stirring shaft and the extrusion shaft are sleeve structures, so that the operation processes of the stirring device and the extrusion device do not interfere with each other, thereby improving the efficiency of the equipment.
[0021] Furthermore, the extrusion block is conical and is located above the discharge port of the storage chamber.
[0022] During the falling process of the material in the mixing chamber, part of the material falls on the extrusion block, and the conical extrusion block is conducive to the free sliding of the material; at the same time, under the action of the extrusion shaft, the extrusion block squeezes the material out of the discharge port.
[0023] Furthermore, the lifting unit includes a lifting mechanism and a lifting platform, the lifting mechanism is fixed to the top of the tank body, the output end of the lifting mechanism is fixedly connected to the lifting platform, and the second driving unit is fixed on the lifting platform.
[0024] The lifting unit is used to drive the extrusion shaft and the extrusion block to complete the extrusion operation, so that the mixed material can be quickly squeezed out of the storage chamber discharge port to improve the equipment efficiency; at the same time, the second drive unit drives the extrusion shaft and the extrusion block to rotate, which not only scatters the material falling on the extrusion block, but also further stirs the material during the falling process to improve the uniformity of mixing.
[0025] Compared with the prior art, the beneficial effects of the utility model are:
[0026] Solid raw materials and liquid raw materials are added to the mixing chamber through the feeding device. The feeding device can detect the amount of solid and liquid raw materials added. When adding solid raw materials, it can be checked twice whether the amount of solid raw materials added deviates from the dosage standard, so as to achieve precise control of the amount of solid raw materials; when adding liquid raw materials, the amount of liquid entering the mixing chamber can be accurately controlled, while improving the convenience of users. The uniformity of the mixing can be improved by accurately controlling the proportion of solid and liquid dosage. During mixing and stirring, the coordination of the stirring blades and wall scraping blades of the stirring device avoids the undesirable phenomenon of wall sticking and uneven stirring during the mixing and stirring process. After the mixing and stirring operation is completed, the bottom plate opening and closing assembly is controlled to open, and the mixed material falls into the storage chamber, and then the bottom plate opening and closing assembly is controlled to close. At the same time, the extrusion device starts, the extrusion shaft and the extrusion block rotate, and apply downward pressure, which can not only further mix the falling materials again to improve the uniformity of the mixture, but also squeeze the materials out from the discharge port to avoid the stickiness of the mixed materials, which makes it difficult to slide freely and fail to fall into the feed port of the extruder, thus causing the extruder to run idle and affecting product quality. When the extrusion device is operating, the feed device can continue to add raw materials for mixing and stirring. The mixing and stirring operations and the discharging operations after mixing do not affect each other, which improves the efficiency of equipment processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 This is a structural diagram of a mixing and feeding device for a modified plastic extruder according to an embodiment of the utility model.
[0028] Figure 2 This is a tank structure diagram of a mixing and feeding device for a modified plastic extruder according to an embodiment of the utility model.
[0029] Figure 3 This is a structural diagram of a feeding device of a mixing and feeding device of a modified plastic extruder according to an embodiment of the utility model.
[0030] Figure 4 This is a structural diagram of a liquid metering feeding device of a mixing and feeding device for a modified plastic extruder according to an embodiment of the utility model.
[0031] Figure 5 This is a structural diagram of a stirring device of a mixing and feeding device of a modified plastic extruder according to an embodiment of the utility model.
[0032] Figure 6 The utility model is a top view of the stirring blades of the mixing and feeding device of the modified plastic extruder according to one embodiment of the present invention.
[0033] Figure 7 This is a structural diagram of an extrusion device of a mixing and feeding device of a modified plastic extruder according to an embodiment of the utility model.
[0034] Figure 8 This is a structural diagram of the stirring shaft and extrusion shaft sleeve of a mixing and feeding device of a modified plastic extruder according to an embodiment of the utility model.
[0035] Illustration: 1-tank body, 11-mixing chamber, 12-storage chamber, 13-support bearing seat, 111-bottom plate opening and closing assembly, 1111-first opening and closing bottom plate, 1112-second opening and closing bottom plate, 1113-third driving unit, 1114-fourth driving unit, 121-discharging port, 2-feeding device, 21-solid feeding unit, 22-liquid feeding unit, 211-solid metering feeding device, 212-solid feeding port, 2111-feeding bin, 2112-telescopic driving unit, 2113-movable bottom plate, 2114-weighing sensor, 221-liquid Metering feeding device, 222-liquid feeding port, 223-liquid atomizing device, 2211-flow sensor, 2212-liquid inlet pipe, 2213-liquid storage tank, 2214-liquid pump, 3-stirring device, 31-transmission unit, 32-first driving unit, 33-stirring shaft, 34-stirring blade, 35-wall scraping assembly, 351-support frame, 352-elastic connecting piece, 353-wall scraping blade, 4-extrusion device, 41-second driving unit, 42-lifting unit, 43-extrusion shaft, 44-extrusion block, 421-lifting mechanism, 422-lifting platform. DETAILED DESCRIPTION
[0036] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.
[0037] like Figures 1 to 8 As shown, in a preferred embodiment, the utility model provides a modified plastic extruder mixing and feeding device, comprising: a tank body 1 including a mixing chamber 11 and a storage chamber 12, the storage chamber 12 is located below the mixing chamber 11, the interior of the mixing chamber 12 is cylindrical, and is connected to the inner wall of the tank body 1 through a support plate, a bottom plate opening and closing assembly 111 is arranged at the bottom of the mixing chamber 11, and a discharge port 121 is arranged below the storage chamber 12, and the discharge port 121 is connected to the feed port of the extruder; a feeding device 2 is connected to the tank body 1, and the feeding device 2 is used to feed the raw material into the mixing chamber 11; a stirring device 3 includes a first driving unit 32, a transmission unit 31, a stirring shaft 33 and a stirring blade The output end of the first driving unit 32 is connected to the stirring shaft 33 through the transmission unit 31, one end of the stirring shaft 33 extends into the mixing chamber 11, and the stirring blade 34 is arranged in the mixing chamber 11 and connected to the stirring shaft 33; the extrusion device 4 includes a second driving unit 41, a lifting unit 42, an extrusion shaft 43 and an extrusion block 44, the output end of the second driving unit 41 is connected to the extrusion shaft 43, the second driving unit 41 is used to drive the extrusion shaft 43 to rotate, one end of the extrusion shaft 43 extends into the storage chamber 12, the extrusion block 44 is fixedly connected to one end of the extrusion shaft 43 extending into the storage chamber 12, and the second driving unit 41 is arranged on the lifting unit 42.
[0038] It can be seen from the above technical solution that after the mixing and stirring operation is completed, the base opening and closing component 111 is controlled to open, and the mixed material falls into the storage chamber 12, and then the base opening and closing component 111 is controlled to close. At the same time, the extrusion device 4 is started, the extrusion shaft 43 and the extrusion block 44 rotate, and apply pressure downward, which can not only further mix the fallen material again to improve the uniformity of the mixed material, but also squeeze the material out from the discharge port 121 to avoid the mixed material having a certain viscosity and not being easy to slide down freely, resulting in the inability to fall into the feed port of the extruder, thereby causing the extruder to run idle and affecting the product quality. When the extrusion device is operating, the feeding device 2 can continue to add raw materials for mixing and stirring, and the mixing and stirring operation and the discharging operation after mixing do not affect each other, thereby improving the efficiency of equipment processing.
[0039] Please refer to Figure 3 , Figure 4The feeding device 2 includes a solid feeding unit 21 and a liquid feeding unit 22. The solid feeding unit 21 includes a solid metering feeding device 211 and a solid feeding port 212, and the solid metering feeding device 211 is connected to the mixing chamber 11 through the solid feeding port 212. The liquid feeding unit 22 includes a liquid metering feeding device 221 and a liquid feeding port 222, and the liquid metering feeding device 211 is connected to the mixing chamber 11 through the liquid feeding port 222, and a liquid atomizing device 223 is provided on the connection side of the liquid feeding port 222 and the mixing chamber 11. The solid metering feeding device 211 includes a feeding bin 2111, a movable bottom plate 2113, a weighing sensor 2114 and a telescopic drive unit 2112. The weighing sensor 2114 is located below the movable bottom plate 2113. The movable bottom plate 2113 is connected to the output end of the telescopic drive unit 2112. The telescopic drive unit 2112 is fixed to the top of the tank body 1 through a mounting bracket. In this embodiment, the telescopic drive unit 2112 can be a cylinder drive unit or a motor drive unit. After adding solid raw materials into the feeding bin 2111, the weighing sensor 2114 controls the amount of solid raw materials added. After the amount ratio is met, the telescopic drive unit 2112 is controlled by the display operation screen to drive the movable bottom plate 2113 to move, open the movable bottom plate 2113, and feed the solid raw materials into the mixing chamber 11. The liquid metering feeding device 221 includes a liquid storage tank 2213, a liquid inlet pipe 2212, a liquid pump 2214 and a flow sensor 2211. The flow sensor 2211 is installed on the liquid inlet pipe 2211. One end of the liquid inlet pipe 2211 is connected to the liquid pump 2214, and the other end of the liquid inlet pipe 2212 is connected to the liquid feed port 222. When adding liquid raw materials, the liquid pump 2214 is controlled by the display operation screen to extract the liquid raw materials into the mixing chamber 11, and the amount of liquid raw materials added is controlled by the flow sensor 2211. When the dosage ratio is met, the flow sensor 2211 feedbacks information to control the liquid pump 2214 to stop working. Solid raw materials and liquid raw materials are added to the mixing chamber 11 through the solid feeding unit 21 and the liquid feeding unit 22 respectively. The solid metering feeding device 21 is equipped with a weighing sensor 2114. When adding solid raw materials, it is possible to conduct a secondary check to see whether the amount of solid raw materials added deviates from the dosage standard, so as to achieve precise control of the amount of solid raw materials. The liquid metering feeding device 221 is equipped with a flow sensor 2211. When adding liquid raw materials, the amount of liquid entering the mixing chamber can be precisely controlled, thereby improving the convenience of the user. A liquid atomizing device 223 is provided on the connecting side of the liquid feed port 222 and the mixing chamber 11 to atomize the liquid entering the mixing chamber 11, which is beneficial to the uniformity of solid-liquid mixing and stirring.
[0040] Please refer to Figure 2 , Figure 5 , Figure 6, the first driving unit 32 and the transmission unit 31 of the stirring device 3 are installed and fixed on the top of the tank body 1. In this embodiment, the first driving unit 32 is a motor driving unit, and the transmission unit 31 can be a belt driving unit or a gear driving unit. A support bearing seat 13 is provided at the top center of the tank body 1, and a through hole is provided. The stirring shaft 33 passes through and is fixed on the support bearing seat 13, and extends into the mixing chamber 11 through the through hole. The stirring shaft 33 and the first driving unit 32 are connected by the transmission unit 31, and then the first driving unit 32 drives the stirring shaft 33 to rotate. The stirring shaft 33 extends into the mixing chamber 11. One end is installed with a fixed stirring blade 34 and a wall scraper assembly 35. As shown Figure 6 As shown, the stirring blade 34 is comb-shaped and is evenly distributed on the stirring shaft 33 in a circular shape. In this embodiment, the stirring blade 34 is composed of 8 groups. In other possible embodiments, the number of stirring blades 34 can be set according to actual conditions, and this application does not limit it. The wall scraping assembly 35 includes a wall scraping blade 353, a support frame 351 and an elastic connector 352. The wall scraping blade 353 is connected to one end of the support frame 351 through an elastic connector 352. The elastic connector 352 can be a spring. The support frame 351 is connected to the stirring shaft 33 away from one end of the wall scraping blade 353, and the wall scraping blade 353 abuts against the inner wall of the mixing chamber 11. In this embodiment, the stirring blade 34, the support frame 351 and the stirring shaft 33 are detachably installed and fixed by bolts. In other possible examples, according to actual conditions, other detachable fixing methods can be adopted, and this application does not limit it. The elastic connecting member 352 enables the wall scraping blade 353 to maintain good contact with the inner wall of the mixing chamber 11, so that it can scrape off the raw materials adhering to the inner wall of the mixing chamber 11, thereby preventing the inner wall of the mixing chamber 11 from adhering to the raw materials during the stirring process.
[0041] Please refer to Figure 2A bottom plate opening and closing assembly 111 is provided at the bottom of the mixing chamber 11, including a first opening and closing bottom plate 1111, a second opening and closing bottom plate 1112, a third driving unit 1113 and a fourth driving unit 1114. The first opening and closing bottom plate 1111 is rotatably connected to the output end of the third driving unit 1113, and the second opening and closing bottom plate 1112 is rotatably connected to the output end of the fourth driving unit 1114. The third driving unit 1113 and the fourth driving unit 1114 can respectively control the first opening and closing bottom plate 1111 and the second opening and closing bottom plate 1112 to open and close 90 degrees up and down. An L-shaped meshing mouth is provided at the intersection of the first opening and closing bottom plate 1111 and the second opening and closing bottom plate 1112 to ensure tightness after closing. A through hole is provided at the intersection corresponding to the extrusion shaft 43 for the extrusion shaft 43 to pass through. The third drive unit 1113 and the fourth drive unit 1114 are fixedly mounted on the side wall of the tank body 1. In this embodiment, the third drive unit 1113 and the fourth drive unit 1114 respectively use two groups of cylinder drive units. After the mixing and stirring is completed, the third drive unit 1113 and the fourth drive unit 1114 are controlled by the display operation screen to drive the first opening and closing bottom plate 1111 and the second opening and closing bottom plate 1112 to open respectively, and the mixed materials fall into the storage cavity by gravity. Then the opening and closing bottom plate is controlled to close, and raw materials can be added to continue the mixing operation.
[0042] Please refer to Figure 7 , Figure 8 The lifting unit 42 of the extrusion device 4 is installed and fixed on the top of the tank body 1. The lifting unit 42 includes a lifting mechanism 421 and a lifting platform 422. The output end of the lifting mechanism 421 is fixedly connected to the lifting platform 422 to drive and control the rise and fall of the lifting platform 422. In this embodiment, the lifting mechanism can use 2 groups of cylinders or hydraulic lifting devices. The second drive unit 41 is fixed to the lifting platform 422. A through hole is provided at the center of the lifting platform 422. The extrusion shaft 43 passes through the through hole and is connected to the output end of the second drive unit 41 through a coupling. In this embodiment, the second drive unit 41 is a motor drive unit. Figure 8As shown, the stirring shaft 33 is a hollow cylindrical shaft, and the extrusion shaft 43 is coaxial with the stirring shaft 33 and extends through the hollow structure inside the stirring shaft 33 to the inside of the storage chamber 12. The sleeve structure of the stirring shaft 33 and the extrusion shaft 43 makes the operation process of the stirring device 3 and the extrusion device 4 not interfere with each other, thereby improving the efficiency of the equipment. The extrusion block 44 is conical, located above the discharge port 121 of the storage chamber 12, and fixed to the extrusion shaft 43 by bolts. During the falling process of the material in the mixing chamber 11, part of the material falls on the extrusion block 44, and the conical extrusion block 44 is conducive to the free sliding of the material. The second driving unit 41 drives the extrusion shaft 43 and the extrusion block 44 to rotate, not only to disperse the material falling on the extrusion block 44, but also to further stir the material during the falling process, thereby improving the uniformity of the mixing. The lifting unit 42 is driven to lift and lower, thereby driving the extrusion shaft 43 and the extrusion block 44 to complete the extrusion operation, thereby quickly squeezing the mixed material out of the discharge port 121 of the storage chamber 12, thereby improving the efficiency of the equipment.
[0043] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0044] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the definition of "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A mixing and feeding device for a modified plastic extruder, characterized in that: include: The tank body comprises a mixing chamber and a storage chamber, wherein the storage chamber is located below the mixing chamber, a bottom plate opening and closing assembly is provided at the bottom of the mixing chamber, and a discharge port is provided below the storage chamber; A feeding device, the feeding device is connected to the tank body, and the feeding device is used to supply raw materials into the mixing chamber; A stirring device, comprising a first driving unit, a transmission unit, a stirring shaft and a stirring blade, wherein an output end of the first driving unit is connected to the stirring shaft through the transmission unit, one end of the stirring shaft extends into the mixing chamber, and the stirring blade is arranged in the mixing chamber and connected to the stirring shaft; The extrusion device includes a second drive unit, a lifting unit, an extrusion shaft and an extrusion block, wherein the output end of the second drive unit is connected to the extrusion shaft, the second drive unit is used to drive the extrusion shaft to rotate, one end of the extrusion shaft extends into the storage cavity, the extrusion block is connected to the end of the extrusion shaft extending into the storage cavity, and the second drive unit is arranged on the lifting unit.
2. The modified plastic extruder mixing and feeding device according to claim 1, characterized in that: The feeding device includes a solid feeding unit and a liquid feeding unit, the solid feeding unit includes a solid metering feeding device and a solid feeding port, the solid metering feeding device is connected to the mixing chamber through the solid feeding port, the liquid feeding unit includes a liquid metering feeding device and a liquid feeding port, the liquid metering feeding device is connected to the mixing chamber through the liquid feeding port, and a liquid atomization device is provided on the connection side of the liquid feeding port and the mixing chamber.
3. The modified plastic extruder mixing and feeding device according to claim 2, characterized in that: The solid metering feeding device includes a feeding bin, a movable bottom plate, a weighing sensor and a telescopic driving unit. The weighing sensor is located below the movable bottom plate. The movable bottom plate is connected to the output end of the telescopic driving unit. The telescopic driving unit is arranged on the top of the tank body.
4. The modified plastic extruder mixing and feeding device according to claim 2, characterized in that: The liquid metering feeding device includes a liquid storage tank, a liquid inlet pipe, a liquid pump and a flow sensor. The flow sensor is arranged on the liquid inlet pipe. One end of the liquid inlet pipe is connected to the liquid pump, and the other end of the liquid inlet pipe is connected to the liquid feed port.
5. The modified plastic extruder mixing and feeding device according to claim 1, characterized in that: A supporting bearing seat is provided on the top of the tank body, and the stirring shaft passes through and is fixed on the supporting bearing seat.
6. The modified plastic extruder mixing and feeding device according to claim 1, characterized in that: The stirring device also includes a wall scraping assembly, which includes a wall scraping blade, a support frame and an elastic connecting piece. The wall scraping blade is connected to one end of the support frame through the elastic connecting piece, and the end of the support frame away from the wall scraping blade is connected to the stirring shaft, and the wall scraping blade abuts against the inner wall of the mixing chamber.
7. The modified plastic extruder mixing and feeding device according to claim 1, characterized in that: The bottom plate opening and closing assembly includes a first opening and closing bottom plate, a second opening and closing bottom plate, a third drive unit and a fourth drive unit. The first opening and closing bottom plate is connected to the output end of the third drive unit, the second opening and closing bottom plate is connected to the output end of the fourth drive unit, the third drive unit and the fourth drive unit are fixed to the side wall of the tank body, and the first opening and closing bottom plate and the second opening and closing bottom plate are meshed and connected at the junction.
8. The modified plastic extruder mixing and feeding device according to claim 1, characterized in that: The stirring shaft is a hollow cylindrical shaft, the extrusion shaft is coaxial with the stirring shaft, and the extrusion shaft passes through the stirring shaft and extends toward the storage chamber.
9. The modified plastic extruder mixing and feeding device according to claim 1, characterized in that: The extrusion block is conical and is located above the discharge port of the storage chamber.
10. The modified plastic extruder mixing and feeding device according to claim 1, characterized in that: The lifting unit comprises a lifting mechanism and a lifting platform. The lifting mechanism is fixed to the top of the tank body. The output end of the lifting mechanism is fixedly connected to the lifting platform. The second driving unit is fixed to the lifting platform.