A conical ribbon screw mixer

Abstract

The invention discloses a conical ribbon screw mixer, which relates to the technical field of vertical ribbon mixers, and comprises a stirring barrel, a primary stirring unit and a secondary stirring unit. The stirring barrel is used for installing and fixing the primary stirring unit and the secondary stirring unit. The primary stirring unit is used for uniformly stirring the materials in the stirring barrel. The secondary stirring unit is used for uniformly stirring the materials in the stirring barrel and scraping off the high-viscosity materials attached to the inner wall of the stirring barrel to improve the mixing uniformity of the materials. When the materials enter the stirring barrel, the primary stirring unit performs preliminary stirring and mixing on the materials. When the secondary stirring unit encounters a material mixing area with a local high viscosity during the stirring process, the materials are stirred and mixed for a secondary time, thereby improving the stirring uniformity of the mixed materials and improving the mixing efficiency of the materials.

Description

Technical Field

[0001] The invention relates to the technical field of vertical ribbon mixers, in particular to a conical ribbon screw mixer. Background Art

[0002] In modern industrial production, mixing operations are a crucial link in many process flows. As a commonly used mixing equipment, conical ribbon screw mixers are widely used in chemical, pharmaceutical, food, building materials and other fields.

[0003] Although the traditional conical ribbon screw mixer can achieve material mixing to a certain extent,

[0004] However, a single stirring method is usually used, which still has some shortcomings in terms of stirring uniformity. It is difficult to effectively handle local high-viscosity materials. Moreover, the heating of high-viscosity materials is often not uniform enough, and it is impossible to fully reduce the viscosity of the materials and improve their fluidity. This not only affects the mixing efficiency, but also fails to scrape off the high-viscosity materials attached to the inner wall of the barrel, resulting in energy waste and equipment damage.

[0005] In addition, existing technologies are also insufficient in detecting and handling local high-viscosity materials. It is difficult to accurately identify high-viscosity areas and take effective heating and stirring measures in a timely manner, which makes quality control during the mixing process difficult and increases uncertainty in the production process. Summary of the invention

[0006] The object of the present invention is to provide a conical ribbon screw mixer to solve the problems raised in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The conical ribbon screw mixer comprises a stirring barrel, a primary stirring unit and a secondary stirring unit, the stirring barrel comprises a barrel cover and a conical barrel, a feed port and an air outlet are provided on the surface of the barrel cover, a large-diameter end of the conical barrel is fixedly connected to the barrel cover, a small-diameter end of the conical barrel is fixedly connected to the primary stirring unit, the primary stirring unit is rotatably connected to the secondary stirring unit, the secondary stirring unit is installed inside the conical barrel, and the secondary stirring unit has the function of changing the stirring angle of the primary stirring unit and cleaning the inner wall of the conical barrel.

[0009] The mixing barrel is used to install and fix the primary mixing unit and the secondary mixing unit. The primary mixing unit is used to evenly mix the materials in the mixing barrel, and the secondary mixing unit is used to evenly mix the materials in the mixing barrel and scrape off the high-viscosity materials attached to the inner wall of the mixing barrel to improve the uniformity of material mixing. When the material enters the mixing barrel, the primary mixing unit performs preliminary mixing of the material. When the secondary mixing unit encounters a material mixing area with locally high viscosity during the mixing process, the material is mixed for a secondary mixing, thereby improving the mixing uniformity of the mixed material and improving the mixing efficiency of the material.

[0010] Furthermore, the primary stirring unit includes an installation box, a motor, a driving gear, a driven gear, a rotating rod, a half gear, a magnet, a limiting cylinder and a coil. The installation box is placed on a horizontal foundation, and the end of the installation box away from the horizontal foundation is fixedly connected to the end of the small diameter of the conical barrel, the fixed end of the motor is fixedly installed on the outer surface of the installation box, the output end of the motor extends into the interior of the installation box and is fixedly connected to the driving gear, the driving gear is meshed with the driven gear, the driven gear is fixedly installed on the middle outer surface of the rotating rod, one end of the rotating rod is rotatably installed on the inner wall of the installation box, and the other end is fixedly connected to the half gear, one end of the magnet is slidably installed in the limiting cylinder, and the other end penetrates through the end surface of the installation box away from the horizontal foundation and is slidably installed in the screw, the middle outer surface of the magnet is provided with a thread matching the tooth shape of the half gear, the limiting cylinder is fixedly installed on the end of the installation box close to the horizontal foundation, the installation box is provided with a cavity, and the coil is evenly wound in the cavity of the installation box.

[0011] Furthermore, the primary stirring unit also includes a second motor, a screw, a spiral belt, a connecting rod, a straight rod, a rotating box, a torsion spring, an electromagnet, a spring, a movable plate, a traction rope and an electric telescopic rod. The fixed end of the second motor is fixedly installed on the surface of the end of the barrel cover away from the horizontal foundation, the output end of the second motor penetrates the barrel cover and extends into the interior of the conical barrel and is fixedly connected to the screw, the second motor is electrically connected to the controller, the screw is fixedly connected to the spiral belt through the connecting rod, the interior of the screw is a hollow structure, one end of the straight rod is fixedly installed in the middle of the connecting rod with an angled upward, and the other end is rotatably connected to the secondary stirring unit, and the interior of the rotating box is provided with upper and lower cavities, and the interior of the lower cavity of the rotating box is connected to the torsion spring. The straight rod is fixedly connected, an electromagnet is fixedly installed inside the upper cavity of the rotating box near one end of the screw, the electromagnet is electrically connected to the coil, one end of the spring is fixedly connected to the electromagnet, and the other end is fixedly connected to the movable plate, the movable plate is slidably installed in the upper cavity of the rotating box, the movable plate is made of iron, one end of the traction rope is fixedly connected to the outer surface of the rotating box, and the other end passes through the inside of the screw and is fixedly connected to the end of the magnet away from the horizontal foundation, the fixed end of the electric telescopic rod is fixedly installed on the upper surface of the adjacent screw belt close to the horizontal foundation, the telescopic end of the electric telescopic rod is fixedly installed on the lower surface of the adjacent screw belt away from the horizontal foundation, and the electric telescopic rod is electrically connected to the secondary stirring unit.

[0012] When the material is poured into the cone barrel from the feed port, the controller controls the second motor to start, thereby driving the screw and the spiral belt to rotate, and evenly stirring the material in the mixing barrel. At the same time, the first motor is started to drive the driving gear to rotate clockwise, thereby driving the two driven gears to rotate synchronously. The driven gear rotates under the action of the rotating rod and drives the left and right half gears to rotate counterclockwise synchronously. When the left half gear is engaged with the thread on the magnet and the right half gear is not in contact with the magnet, the magnet is driven to move upward inside the limit barrel and the screw. When the half gears continue to rotate, the left half gear is disengaged from the magnet, and the right half gear continues to rotate counterclockwise to engage with the thread of the magnet, thereby driving the magnet to move downward inside the limit barrel and the screw.

[0013] When the magnet moves downward, on the one hand, the magnetic flux changes, thereby generating a positive current in the coil, and the current is transmitted to the electromagnet. When the electromagnet is fed with a positive current, a magnetic field in a specific direction is generated. At this time, the movable plate will be magnetized under the action of the magnetic field. Since the movable plate is magnetized, it interacts with the magnetic field of the electromagnet and is attracted to the electromagnet, thereby driving the movable plate to extend into the rotating box to stir the material in the mixing barrel again. On the other hand, the magnet pulls the traction rope, thereby pulling the rotating box to rotate around the straight rod, pushing the mixed material outward while stirring it evenly, and fully mixing the materials at different levels, thereby improving the uniformity of material mixing.

[0014] When the magnet moves upward, on the one hand, a reverse current is generated in the coil and transmitted to the electromagnet. At this time, the direction of the magnetic field generated by the electromagnet will be reversed. At this time, the moving plate has been magnetized by the magnetic field generated by the forward current. Then, under the action of the reverse magnetic field, the magnetization state of the moving plate will also change. Since the new magnetization state is opposite to the direction of the magnetic field of the electromagnet, a repulsive force will be generated. The electromagnet repels the moving plate, and under the action of the restoring force of the spring, the moving plate is pushed out of the rotating box, and the material is pushed toward the inner wall to flow, thereby increasing the contact area with the mixed material and improving the material mixing efficiency. On the other hand, the pulling force on the traction rope is released. Under the action of the restoring force of the torsion spring, the rotating box rotates in the opposite direction to reset, and the mixed material is pushed inward again while being evenly stirred, so that materials at different levels are fully mixed, thereby improving the uniformity of material mixing again.

[0015] When a high viscosity area is detected during the stirring process, the power of motor 1 is increased through the controller, and the speed of the active gear is increased, thereby driving the half gear to rotate rapidly, and driving the magnet to move back and forth rapidly. Since the magnet passes through the coil quickly, the change in magnetic flux passing through the coil per unit time increases, and the rate of change of magnetic flux increases synchronously, so that the current increases accordingly. When the electromagnet receives a larger current, the magnetic force obtained thereby can push or attract the moving plate to move an increased distance, thereby increasing the contact area with the mixed material in the high viscosity area again. Since the magnet moves back and forth rapidly, the rotating box is driven to rotate and reset rapidly under the action of the traction rope, thereby fully and evenly stirring the high viscosity material and improving the material mixing efficiency.

[0016] Furthermore, the secondary stirring unit includes a scraper roller, an electrode sheet one, an electrode sheet two and a varistor. The scraper roller is rotatably connected to the straight rod. The scraper roller is provided with a groove. The electrode sheet two is fixedly installed in the scraper roller groove. The electrode sheet is fixedly connected to the electrode sheet one through multiple groups of varistors. The electrode sheet two is electrically connected to the electric telescopic rod.

[0017] When a high viscosity area is detected during the stirring process, the controller passes current to electrode sheet one, which squeezes the varistor through electrode sheet one. The resistance of the varistor decreases as the pressure increases, so that the current received by electrode sheet two increases, and the current is transmitted to the electric telescopic rod, which contracts, thereby increasing the stirring angle of the spiral ribbon and the stirring area, thereby uniformly stirring the mixed materials in the high viscosity area. When the stirring angle of the spiral ribbon becomes larger, the scraper roller contacts the inner wall of the stirring barrel, thereby scraping off the high viscosity material attached to the inner wall of the stirring barrel, thereby improving the uniformity of material mixing and avoiding material waste. When the controller detects that the current received by electrode sheet two exceeds the preset value and determines that a high viscosity area is encountered during the stirring process, the controller reduces the power of motor two, thereby reducing the rotation speed of the screw and spiral ribbon, thereby increasing the stirring time of the rotating box, thereby jointly improving the mixing effect of the materials in the high viscosity area.

[0018] Furthermore, there are two half gears, and the two half gears are symmetrically installed on both sides of the magnet with the magnet perpendicular to the horizontal axis as the center.

[0019] In order to facilitate the rotation of the half gear to drive the magnet to reciprocate up and down, while driving the rotating box to rotate under the action of the traction rope, the electromagnet receives the current from the coil to push the moving plate to extend periodically to increase the contact area with the material, thereby forming a more complex material flow direction, improving the uniformity of material mixing in the entire mixing equipment, and at the same time, when encountering a high viscosity area, the rotating box can quickly stir the material to improve the mixing efficiency.

[0020] Furthermore, the distance that the magnet moves in the vertical direction is equal to the path length of the rotating box rotating 120°.

[0021] When the rotating box rotates 120°, it can drive the material in the cone barrel to perform more complex movements, and at the same time make the material pass through a longer mixing path in the cone barrel. The rotation of the rotating box can fully mix the materials at different levels and improve the overall uniformity.

[0022] Furthermore, the surface of the spiral belt directly below the rotating box is provided with a plurality of groups of circular through holes.

[0023] In order to facilitate the traction rope to provide a stable downward force to the rotating box, the rotating box can be rotated to the maximum angle to improve the mixing effect of materials at different levels.

[0024] Furthermore, the electrode sheet 1 is electrically connected to the controller, and the electrode sheet 2 is electrically connected to the controller.

[0025] In order to achieve automatic control and timely response of the device, when the controller detects that the current received by the second electrode exceeds the preset value, the device can spontaneously and quickly respond to the stirring action in the high viscosity area to improve the material stirring effect, save labor and avoid the situation where the high viscosity area is not fully stirred due to manual labor, which affects the material mixing effect.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention drives the magnet to reciprocate up and down by rotating the half gear in the primary stirring unit, so that the rotating box rotates, stirring the materials at different layers to fully mix them evenly. At the same time, the coil generates current to provide it to the electromagnet, so that the electromagnet changes its magnetism and drives the moving plate to extend periodically to stir the materials together, so that the materials in the stirring barrel form a more complex material flow direction, improve the mixing uniformity of the materials in the entire mixing equipment, and at the same time, when encountering a high viscosity area, the rotating box can quickly stir the materials to improve the mixing efficiency.

[0028] 2. When a high viscosity area is detected during the stirring process, the present invention reduces the pressure resistance of the varistor in the secondary stirring unit, and transmits current to the electric telescopic rod to shrink it, thereby increasing the stirring angle of the spiral ribbon and increasing the stirring area, so that the mixed material in the high viscosity area is evenly stirred. At the same time, the scraper roller contacts the inner wall of the stirring barrel to scrape off the high viscosity material attached to the inner wall of the stirring barrel, thereby improving the uniformity of material mixing and avoiding material waste. At the same time, the controller reduces the power of the second motor, thereby reducing the rotation speed of the screw and the spiral ribbon, thereby increasing the stirring time of the rotating box, thereby jointly improving the mixing effect of the material in the high viscosity area. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall appearance structure of a conical ribbon screw mixer of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal structure of a conical ribbon screw mixer of the present invention;

[0031] Figure 3 It is a top view structural schematic diagram of a conical ribbon screw mixer of the present invention;

[0032] Figure 4 A conical ribbon screw mixer according to the present invention Figure 3 Schematic diagram of the cross-section structure at AA in the middle;

[0033] Figure 5 A conical ribbon screw mixer according to the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0034] Figure 6It is a schematic structural diagram of the installation relationship between the driving gear, the driven gear and the half-scale wheel of a conical ribbon screw mixer of the present invention;

[0035] Figure 7 It is a structural schematic diagram of the installation relationship between the traction rope and the rotating box of a conical ribbon screw mixer of the present invention;

[0036] Figure 8 It is a schematic diagram of the internal structure of the lower cavity of the rotating box of a conical ribbon screw mixer of the present invention;

[0037] Fig. 9 It is a schematic diagram of the internal structure of the upper cavity of the rotating box of a conical ribbon screw mixer of the present invention;

[0038] Fig.10 The present invention is a schematic diagram of the internal structure of a scraper roller of a conical ribbon screw mixer.

[0039] In the figure: 1. stirring barrel; 11. barrel cover; 12. cone barrel; 2. primary stirring unit; 21. installation box; 22. motor 1; 23. driving gear; 24. driven gear; 25. rotating rod; 26. half gear; 27. magnet; 28. limiting cylinder; 29. ​​coil; 210. motor 2; 211. screw; 212. screw belt; 213. connecting rod; 214. straight rod; 215. rotating box; 216. torsion spring; 217. electromagnet; 218. spring; 219. moving plate; 220. traction rope; 221. electric telescopic rod; 3. secondary stirring unit; 31. scraper roller; 32. electrode sheet 1; 33. electrode sheet 2; 34. varistor. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example: Figure 1-Figure 10 As shown, the present invention provides a technical solution:

[0042] like Figure 1 , 2As shown, a conical ribbon screw mixer includes a stirring barrel 1, a primary stirring unit 2 and a secondary stirring unit 3. The stirring barrel 1 includes a barrel cover 11 and a conical barrel 12. A feed port and an air outlet are provided on the surface of the barrel cover 11. A large-diameter end of the conical barrel 12 is fixedly connected to the barrel cover 11, and a small-diameter end of the conical barrel 12 is fixedly connected to the primary stirring unit 2. The primary stirring unit 2 is rotatably connected to the secondary stirring unit 3. The secondary stirring unit 3 is installed inside the conical barrel 12. The secondary stirring unit 3 has the function of changing the stirring angle of the primary stirring unit 2 and cleaning the inner wall of the conical barrel 12.

[0043] The mixing barrel 1 is used to install and fix a primary mixing unit 2 and a secondary mixing unit 3. The primary mixing unit 2 is used to uniformly mix the materials in the mixing barrel 1. The secondary mixing unit 3 is used to uniformly mix the materials in the mixing barrel 1 while scraping off the high-viscosity materials attached to the inner wall of the mixing barrel 1 to improve the uniformity of material mixing. When the materials enter the mixing barrel 1, the primary mixing unit 2 performs preliminary mixing on the materials. When the secondary mixing unit 3 encounters a material mixing area with a local high viscosity during the mixing process, the materials are mixed for a secondary time, thereby improving the mixing uniformity of the mixed materials and improving the mixing efficiency of the materials.

[0044] like Figure 2 , 4 As shown in , 5 and 6, the primary stirring unit 2 includes an installation box 21, a motor 22, a driving gear 23, a driven gear 24, a rotating rod 25, a half gear 26, a magnet 27, a limiting cylinder 28 and a coil 29. The installation box 21 is placed on a horizontal basis, and one end of the installation box 21 away from the horizontal basis is fixedly connected to the small-diameter end of the cone barrel 12, and the fixed end of the motor 22 is fixedly installed on the outer surface of the installation box 21. The output end of the motor 22 extends into the interior of the installation box 21 and is fixedly connected to the driving gear 23. The driving gear 23 is meshed with the driven gear 24, and the driven gear 24 is meshed with the driven gear 24. The gear 24 is fixedly mounted on the middle outer surface of the rotating rod 25, one end of the rotating rod 25 is rotatably mounted on the inner wall of the installation box 21, and the other end is fixedly connected to the half gear 26. One end of the magnet 27 is slidably mounted inside the limiting cylinder 28, and the other end penetrates through the end surface of the installation box 21 away from the horizontal foundation and is slidably mounted inside the screw 211. A thread matching the tooth shape of the half gear 26 is provided on the middle outer surface of the magnet 27. The limiting cylinder 28 is fixedly mounted on one end of the installation box 21 close to the horizontal foundation. The installation box 21 is provided with a cavity, and the coil 29 is evenly wound in the cavity of the installation box 21.

[0045] like Figure 2 , 3As shown in , 4, 7, 8, and 9, the primary stirring unit 2 also includes a second motor 210, a screw 211, a spiral belt 212, a connecting rod 213, a straight rod 214, a rotating box 215, a torsion spring 216, an electromagnet 217, a spring 218, a movable plate 219, a traction rope 220, and an electric telescopic rod 221. The fixed end of the second motor 210 is fixedly mounted on the surface of the end of the barrel cover 11 away from the horizontal foundation, the output end of the second motor 210 penetrates the barrel cover 11 and extends into the interior of the cone barrel 12 and is fixedly connected to the screw 211. The second motor 210 is electrically connected to the controller, the screw 211 is fixedly connected to the spiral belt 212 through the connecting rod 213, the interior of the screw 211 is a hollow structure, one end of the straight rod 214 is fixedly mounted on the middle of the connecting rod 213 tilted upward, and the other end is rotatably connected to the secondary stirring unit 3, and the rotating box 215 is provided with two upper and lower cavities. The rotating box 21 The interior of the lower cavity is fixedly connected to the straight rod 214 through a torsion spring 216, an electromagnet 217 is fixedly installed in the upper cavity of the rotating box 215 near one end of the screw 211, and the electromagnet 217 is electrically connected to the coil 29. One end of the spring 218 is fixedly connected to the electromagnet 217, and the other end is fixedly connected to the moving plate 219. The moving plate 219 is slidably installed in the upper cavity of the rotating box 215. The moving plate 219 is made of iron. One end of the traction rope 220 is fixedly connected to the outer surface of the rotating box 215, and the other end passes through the interior of the screw 211 and is fixedly connected to the end of the magnet 27 away from the horizontal foundation. The fixed end of the electric telescopic rod 221 is fixedly installed on the upper surface of the adjacent screw belt 212 close to the horizontal foundation, and the telescopic end of the electric telescopic rod 221 is fixedly installed on the lower surface of the adjacent screw belt 212 away from the horizontal foundation. The electric telescopic rod 221 is electrically connected to the secondary stirring unit 3.

[0046] When the material is poured into the conical barrel 12 from the feed port, the controller controls the motor 210 to start, thereby driving the screw 211 and the spiral belt 212 to rotate, and the material in the mixing barrel 1 is evenly stirred. At the same time, the driving gear 23 is driven to rotate clockwise by starting the motor 1 22, thereby driving the two driven gears 24 to rotate synchronously. The driven gear 24 rotates under the action of the rotating rod 25 to drive the left and right half gears 26 to rotate counterclockwise synchronously. When the left half gear 26 is engaged with the thread on the magnet 27 and the right half gear 26 is not in contact with the magnet 27, the magnet 27 is driven to move upward inside the limiting cylinder 28 and the screw 211. When the half gear 26 continues to rotate, the left half gear 26 is disengaged from the magnet 27, and the right half gear 26 continues to rotate counterclockwise to engage with the thread of the magnet 27, thereby driving the magnet 27 to move downward inside the limiting cylinder 28 and the screw 211.

[0047] When the magnet 27 moves downward, on the one hand, the magnetic flux changes, thereby generating a positive current in the coil 29, and the current is transmitted to the electromagnet 217. When the electromagnet 217 is supplied with a positive current, a magnetic field in a specific direction is generated. At this time, the movable plate 219 is magnetized under the action of the magnetic field. Since the movable plate 219 interacts with the magnetic field of the electromagnet 217 after being magnetized, it is attracted to the electromagnet 217, thereby driving the movable plate 219 to extend into the rotating box 215, and the material in the mixing barrel 1 is stirred again. On the other hand, the magnet 27 pulls the traction rope 220, thereby pulling the rotating box 215 to rotate around the straight rod 214, and the mixed material is pushed outward while being evenly stirred, and the materials at different levels are fully mixed, thereby improving the uniformity of material mixing.

[0048] When the magnet 27 moves upward, on the one hand, a reverse current is generated in the coil 29 and transmitted to the electromagnet 217. At this time, the direction of the magnetic field generated by the electromagnet 217 will be reversed. At this time, the movable plate 219 has been magnetized by the magnetic field generated by the forward current. Then, under the action of the reverse magnetic field, the magnetization state of the movable plate 219 will also change. Since the new magnetization state is opposite to the direction of the magnetic field of the electromagnet 217, a repulsive force will be generated. The electromagnet 217 repels the movable plate 219, and under the action of the restoring force of the spring 218, the movable plate 219 is pushed out of the rotating box 215, and the material is pushed to flow toward the inner wall, thereby increasing the contact area with the mixed material and improving the material mixing efficiency. On the other hand, the pulling force on the traction rope 220 is released. Under the action of the restoring force of the torsion spring 216, the rotating box 215 rotates in the opposite direction to reset, and the mixed material is pushed inward again while being evenly stirred, and the materials at different levels are fully mixed, thereby improving the material mixing uniformity again.

[0049] When a high viscosity area is detected during the stirring process, the power of the motor 22 is increased through the controller, and the speed of the driving gear 23 is increased, thereby driving the half gear 26 to rotate rapidly, and driving the magnet 27 to move up and down rapidly. Since the magnet 27 passes through the coil 29 rapidly, the change in the magnetic flux passing through the coil 29 per unit time increases, and the rate of change of the magnetic flux increases synchronously, so that the current increases accordingly. When the electromagnet 217 receives a larger current, the magnetic force obtained thereby can push or attract the moving plate 219 to move an increased distance, thereby increasing the contact area with the mixed material in the high viscosity area again. Since the magnet 27 moves up and down rapidly, the rotating box 215 is driven to rotate and reset rapidly under the action of the traction rope 220, so that the high viscosity material is fully and evenly stirred, thereby improving the material mixing efficiency.

[0050] like Fig.10As shown, the secondary stirring unit 3 includes a scraper roller 31, an electrode sheet 1 32, an electrode sheet 2 33 and a varistor 34. The scraper roller 31 is rotatably connected to the straight rod 214. The scraper roller 31 is provided with a groove. The electrode sheet 2 33 is fixedly installed in the groove of the scraper roller 31. The electrode sheet is fixedly connected to the electrode sheet 1 32 through multiple groups of varistors 34. The electrode sheet 2 33 is electrically connected to the electric telescopic rod 221.

[0051] When a high viscosity area is detected during the stirring process, the varistor 34 is squeezed by the electrode sheet 1 32. The resistance of the varistor 34 decreases as the pressure increases, so that the current received by the electrode sheet 2 33 increases, and the current is transmitted to the electric telescopic rod 221. The electric telescopic rod 221 contracts, thereby increasing the stirring angle of the spiral ribbon 212 and increasing the stirring area, so that the mixed material in the high viscosity area is uniformly stirred. When the stirring angle of the spiral ribbon 212 becomes larger, the scraper roller 31 contacts the inner wall of the stirring barrel 1, thereby scraping off the high viscosity material attached to the inner wall of the stirring barrel 1, thereby improving the uniformity of material mixing while avoiding material waste. When the controller detects that the current received by the electrode sheet 2 33 exceeds the preset value, it is determined that a high viscosity area is encountered during the stirring process. At this time, the controller reduces the power of the motor 2 210, thereby reducing the rotation speed of the screw 211 and the spiral ribbon 212, thereby increasing the stirring time of the rotating box 215, thereby jointly improving the mixing effect of the material in the high viscosity area.

[0052] like Figure 5 As shown, there are two half gears 26 , and the two half gears 26 are symmetrically installed on both sides of the magnet 27 with the magnet 27 perpendicular to the horizontal axis as the center.

[0053] In order to facilitate the rotation of the half gear 26 to drive the magnet 27 to move up and down, thereby driving the rotating box 215 to rotate under the action of the traction rope 220, the electromagnet 217 receives the current from the coil 29 to push the moving plate 219 to extend periodically to increase the contact area with the material, thereby forming a more complex material flow direction, improving the uniformity of material mixing in the entire mixing equipment, and at the same time, when encountering a high viscosity area, the rotating box 215 can quickly stir the material to improve the mixing efficiency.

[0054] like Figure 4 , 5 As shown, the distance that the magnet 27 moves in the vertical direction is equal to the path length of the rotating box 215 rotating 120°.

[0055] When the rotating box 215 rotates 120°, it can drive the material in the cone barrel 12 to perform more complex movements, and at the same time make the material pass through a longer mixing path in the cone barrel 12. The rotation of the rotating box 215 can fully mix the materials at different levels and improve the overall uniformity.

[0056] like Figure 4As shown, the screw belt 212 is located directly below the rotating box 215 and has multiple groups of circular through holes on its surface.

[0057] To facilitate the traction rope 220 to provide a stable downward force to the rotating box 215, the rotating box 215 can be rotated to the maximum angle to improve the mixing effect of materials at different levels.

[0058] like Fig.10 As shown, the electrode sheet 1 32 is electrically connected to the controller, and the electrode sheet 2 33 is electrically connected to the controller.

[0059] In order to achieve automatic control and timely response of the device, when the controller detects that the current received by the electrode sheet 2 33 exceeds the preset value, the device can spontaneously and quickly respond to the stirring action in the high viscosity area to improve the material stirring effect, save labor and avoid the situation where the high viscosity area is not fully stirred due to manual labor, which affects the material mixing effect.

[0060] Working principle of the present invention:

[0061] When the material is poured into the conical barrel 12 from the feed port, the controller controls the motor 210 to start, thereby driving the screw 211 and the spiral belt 212 to rotate, and the material in the mixing barrel 1 is evenly stirred. At the same time, the driving gear 23 is driven to rotate clockwise by starting the motor 1 22, thereby driving the two driven gears 24 to rotate synchronously. The driven gear 24 rotates under the action of the rotating rod 25 to drive the left and right half gears 26 to rotate counterclockwise synchronously. When the left half gear 26 is engaged with the thread on the magnet 27 and the right half gear 26 is not in contact with the magnet 27, the magnet 27 is driven to move upward inside the limiting cylinder 28 and the screw 211. When the half gear 26 continues to rotate, the left half gear 26 is disengaged from the magnet 27, and the right half gear 26 continues to rotate counterclockwise to engage with the thread of the magnet 27, thereby driving the magnet 27 to move downward inside the limiting cylinder 28 and the screw 211.

[0062] When the magnet 27 moves downward, on the one hand, the magnetic flux changes, thereby generating a positive current in the coil 29, and the current is transmitted to the electromagnet 217. When the electromagnet 217 is supplied with a positive current, a magnetic field in a specific direction is generated. At this time, the movable plate 219 is magnetized under the action of the magnetic field. Since the movable plate 219 interacts with the magnetic field of the electromagnet 217 after being magnetized, it is attracted to the electromagnet 217, thereby driving the movable plate 219 to extend into the rotating box 215, and the material in the mixing barrel 1 is stirred again. On the other hand, the magnet 27 pulls the traction rope 220, thereby pulling the rotating box 215 to rotate around the straight rod 214, and the mixed material is pushed outward while being evenly stirred, and the materials at different levels are fully mixed, thereby improving the uniformity of material mixing.

[0063] When the magnet 27 moves upward, on the one hand, a reverse current is generated in the coil 29 and transmitted to the electromagnet 217. At this time, the direction of the magnetic field generated by the electromagnet 217 will be reversed. At this time, the movable plate 219 has been magnetized by the magnetic field generated by the forward current. Then, under the action of the reverse magnetic field, the magnetization state of the movable plate 219 will also change. Since the new magnetization state is opposite to the direction of the magnetic field of the electromagnet 217, a repulsive force will be generated. The electromagnet 217 repels the movable plate 219, and under the action of the restoring force of the spring 218, the movable plate 219 is pushed out of the rotating box 215, and the material is pushed to flow toward the inner wall, thereby increasing the contact area with the mixed material and improving the material mixing efficiency. On the other hand, the pulling force on the traction rope 220 is released. Under the action of the restoring force of the torsion spring 216, the rotating box 215 rotates in the opposite direction to reset, and the mixed material is pushed inward again while being evenly stirred, and the materials at different levels are fully mixed, thereby improving the material mixing uniformity again.

[0064] When a high viscosity area is detected during the stirring process, the power of the motor 22 is increased through the controller, and the speed of the driving gear 23 is increased, thereby driving the half gear 26 to rotate rapidly, and driving the magnet 27 to move up and down rapidly. Since the magnet 27 passes through the coil 29 rapidly, the change in the magnetic flux passing through the coil 29 per unit time increases, and the rate of change of the magnetic flux increases synchronously, so that the current increases accordingly. When the electromagnet 217 receives a larger current, the magnetic force obtained thereby can push or attract the moving plate 219 to move an increased distance, thereby increasing the contact area with the mixed material in the high viscosity area again. Since the magnet 27 moves up and down rapidly, the rotating box 215 is driven to rotate and reset rapidly under the action of the traction rope 220, so that the high viscosity material is fully and evenly stirred, thereby improving the material mixing efficiency.

[0065] When a high viscosity area is detected during the stirring process, the varistor 34 is squeezed by the electrode sheet 1 32. The resistance of the varistor 34 decreases as the pressure increases, so that the current received by the electrode sheet 2 33 increases, and the current is transmitted to the electric telescopic rod 221. The electric telescopic rod 221 contracts, thereby increasing the stirring angle of the spiral ribbon 212 and increasing the stirring area, so that the mixed material in the high viscosity area is uniformly stirred. When the stirring angle of the spiral ribbon 212 becomes larger, the scraper roller 31 contacts the inner wall of the stirring barrel 1, thereby scraping off the high viscosity material attached to the inner wall of the stirring barrel 1, thereby improving the uniformity of material mixing while avoiding material waste. When the controller detects that the current received by the electrode sheet 2 33 exceeds the preset value, it is determined that a high viscosity area is encountered during the stirring process. At this time, the controller reduces the power of the motor 2 210, thereby reducing the rotation speed of the screw 211 and the spiral ribbon 212, thereby increasing the stirring time of the rotating box 215, thereby jointly improving the mixing effect of the material in the high viscosity area.

[0066] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A conical ribbon screw mixer, characterized in that: The conical ribbon screw mixer comprises a stirring barrel (1), a primary stirring unit (2) and a secondary stirring unit (3); the stirring barrel (1) comprises a barrel cover (11) and a conical barrel (12); a feed inlet and an air outlet are provided on the surface of the barrel cover (11); a large-diameter end of the conical barrel (12) is fixedly connected to the barrel cover (11); a small-diameter end of the conical barrel (12) is fixedly connected to the primary stirring unit (2); the primary stirring unit (2) and the secondary stirring unit (3) are rotatably connected; the secondary stirring unit (3) is installed inside the conical barrel (12); and the secondary stirring unit (3) has the function of changing the stirring angle of the primary stirring unit (2) and cleaning the inner wall of the conical barrel (12); The primary stirring unit (2) comprises a mounting box (21), a motor (22), a driving gear (23), a driven gear (24), a rotating rod (25), a half gear (26), a magnet (27), a limiting cylinder (28) and a coil (29). The mounting box (21) is placed on a horizontal foundation. An end of the mounting box (21) away from the horizontal foundation is fixedly connected to an end of the cone barrel (12) with a small diameter. The fixed end of the motor (22) is fixedly mounted on the outer surface of the mounting box (21). The output end of the motor (22) extends into the interior of the mounting box (21) and is fixedly connected to the driving gear (23). The driving gear (23) is meshedly connected to the driven gear (24). The movable gear (24) is fixedly mounted on the middle outer surface of the rotating rod (25); one end of the rotating rod (25) is rotatably mounted on the inner wall of the mounting box (21); the other end is fixedly connected to the half gear (26); one end of the magnet (27) is slidably mounted inside the limiting cylinder (28); the other end penetrates through the end surface of the mounting box (21) away from the horizontal foundation and is slidably mounted inside the screw rod (211); a thread matching the tooth shape of the half gear (26) is provided on the middle outer surface of the magnet (27); the limiting cylinder (28) is fixedly mounted on the end of the mounting box (21) close to the horizontal foundation; the mounting box (21) is provided with a cavity; the coil (29) is evenly wound in the cavity of the mounting box (21); The primary stirring unit (2) further comprises a second motor (210), a screw (211), a screw belt (212), a connecting rod (213), a straight rod (214), a rotating box (215), a torsion spring (216), an electromagnet (217), a spring (218), a moving plate (219), a traction rope (220) and an electric telescopic rod (221). The fixed end of the second motor (210) is fixedly mounted on the surface of the barrel cover (11) away from the horizontal base. The output end of the second motor (210) passes through the barrel cover ( 11) extends into the interior of the cone barrel (12) and is fixedly connected to the screw rod (211), the motor 2 (210) is electrically connected to the controller, the screw rod (211) is fixedly connected to the screw belt (212) via a connecting rod (213), the interior of the screw rod (211) is a hollow structure, one end of the straight rod (214) is fixedly installed in the middle of the connecting rod (213) in an inclined manner, and the other end is rotatably connected to the secondary stirring unit (3), the interior of the rotating box (215) is provided with two upper and lower cavities, and the rotating box (215) ) is fixedly connected to the straight rod (214) through a torsion spring (216), an electromagnet (217) is fixedly installed in the upper cavity of the rotating box (215) near one end of the screw rod (211), and the electromagnet (217) is electrically connected to the coil (29), one end of the spring (218) is fixedly connected to the electromagnet (217), and the other end is fixedly connected to the moving plate (219), and the moving plate (219) is slidably installed in the upper cavity of the rotating box (215), and the material of the moving plate (219) is iron, one end of the traction rope (220) is fixedly connected to the outer surface of the rotating box (215), and the other end passes through the interior of the screw rod (211) and is fixedly connected to the end of the magnet (27) away from the horizontal foundation, the fixed end of the electric telescopic rod (221) is fixedly mounted on the upper surface of the adjacent screw belt (212) close to the horizontal foundation, the telescopic end of the electric telescopic rod (221) is fixedly mounted on the lower surface of the adjacent screw belt (212) away from the horizontal foundation, and the electric telescopic rod (221) is electrically connected to the secondary stirring unit (3); The secondary stirring unit (3) comprises a scraping roller (31), an electrode sheet 1 (32), an electrode sheet 2 (33) and a varistor (34); the scraping roller (31) is rotatably connected to a straight rod (214); the scraping roller (31) is provided with a groove; the electrode sheet 2 (33) is fixedly installed in the groove of the scraping roller (31); the electrode sheet is fixedly connected to the electrode sheet 1 (32) via a plurality of groups of varistor (34); and the electrode sheet 2 (33) is electrically connected to an electric telescopic rod (221); There are two half gears (26), and the two half gears (26) are symmetrically mounted on both sides of the magnet (27) with the magnet (27) perpendicular to the horizontal axis as the center axis; The distance that the magnet (27) moves in the vertical direction is equal to the path length of the rotating box (215) rotating 120°; The spiral belt (212) is located directly below the rotating box (215) and has a plurality of groups of circular through holes on its surface.

2. A conical ribbon screw mixer according to claim 1, characterized in that: The electrode sheet 1 (32) is electrically connected to the controller, and the electrode sheet 2 (33) is electrically connected to the controller.

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