Mixing equipment for applying high-dispersity negative ion nonmetal additive powder to polypropylene composite material

Abstract

The invention relates to the technical field of composite material mixing, in particular to mixing equipment for applying high-dispersity anion nonmetal additive powder to polypropylene composites.The mixing equipment comprises a machine body and a pair of rollers in the machine body, and a material rolling and feeding part is arranged outside the rollers in front of the machine body and used for actively guiding a composite material to be self-rolled in front of the rollers; the roll material is released in a self-adaptive manner and returns to the position between the tops of the pair of rollers along with the roller movement; the material rolling and feeding part is a driving material rolling part and comprises a material rolling barrel, a transmission set and a material guiding frame. Torsion of the roller is transmitted through the transmission set to drive the rolling barrel to rotate so as to stir and roll colloid on the outer wall of the roller; the larger the rolled rubber body is, the larger the rolled rubber body is, the rolled rubber body is staggered, slides and is separated from the rolling barrel, and returns to the gap between the tops of the two rollers along with rotation of the rollers, so that all the rubber bodies are gathered between the tops of the pair of rollers and are fully rolled and mixed again, uneven mixing is avoided, time is saved, manual operation is replaced by the automatic design, and safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of composite material mixing, in particular to mixing equipment for applying highly dispersed anionic non-metallic additive powder to polypropylene composite materials. Background Art

[0002] As a general-purpose thermoplastic, polypropylene has limitations in mechanical strength, heat resistance and functional properties, and it is difficult to meet the needs of high-end application scenarios. Negative ion materials such as tourmaline and rare earth minerals can absorb harmful substances in the air by releasing negative ions, and have the effects of purifying the air and inhibiting bacteria. Highly dispersed negative ion non-metallic powders can significantly improve their dispersion uniformity in the polypropylene matrix through surface modification, nano-sizing or composite structure design, and reduce performance loss caused by agglomeration.

[0003] The invention patent with application number CN202311349798.6 discloses a method for transparently modifying polypropylene by using a "DBS"-like transparent modified polypropylene macromolecular nucleating agent, comprising: mixing a peroxide initiator, a grafting monomer, a polyol and polypropylene, and melt blending to obtain a "DBS"-like transparent modified polypropylene macromolecular nucleating agent, adding the macromolecular nucleating agent and polypropylene to a mixing equipment for melt blending to transparently modify the polypropylene and obtain transparent modified and crystallized refined polypropylene.

[0004] The invention patent with application number CN201911411541.2 discloses a high-performance polymer alloy preparation mixing equipment, including a mixing chamber, wherein two sets of agitators are arranged in the mixing chamber, and an extrusion screw and a cleaning screw are also connected to the mixing chamber, and fixed plates are connected to the two sides of the mixing chamber. A plurality of material blocking mechanisms are arranged above the cleaning screw in the mixing chamber, and the material blocking mechanisms are connected to the fixed plates. A material dropping chute is also provided in the mixing chamber above the cleaning screw.

[0005] It can be seen that by controlling the temperature in the mixing equipment, the highly dispersed negative ion non-metallic additive powder is poured into the polypropylene colloid for rolling, mixing and refining to form a composite material to increase the functionality of polypropylene; the traditional mixing is to roll the colloid with a pair of rollers for continuous circulation mixing. Since the colloid is rolled into sheets and adsorbed on the outer wall of the roller, each cycle of rolling is prone to less contact between the colloid as a whole, resulting in a large amount of time required to support its mixing and ensure uniformity; for this reason, the curling of the colloid is even manually intercepted, and then the whole is moved and rolled, which increases the labor intensity and lacks safety; the above-mentioned patent uses a bladed agitator to stir the material in the mixing chamber, thereby dividing the material into multiple portions for mixing, which is bound to require a long time of mixing to ensure uniformity like the traditional process, that is, it requires a lot of time cost, which is not in line with the industry's cost reduction and efficiency improvement. Summary of the invention

[0006] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a mixing device for applying highly dispersed anionic non-metallic additive powder to polypropylene composite materials, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides a mixing device for applying highly dispersed anionic non-metallic additive powder to polypropylene composite materials, comprising a machine body and a pair of rollers inside the machine body that are relatively reversed, wherein a coil feeding part is arranged outside the roller in front of the machine body, which is used to actively guide the composite material to self-roll in front of the roller, and adaptively release the coil to move with the roller back between the tops of the pair of rollers; The coil feeding section is an active coil section, which includes a coil drum coaxially suspended on the front side of the roller located in front, a transmission group arranged between the roller and the end of the coil drum, and a guide frame for supporting the horizontal displacement of the coil drum; the guide frame is located on the outer side of the lower half of the roller, and is used to guide the composite material to adhere to the roller and then move to the coil drum, and is switched to a self-rolling state by the friction force of the rotation of the coil drum, until the outer diameter of the self-roll becomes larger and pushes the coil drum away, and returns with the movement of the roller and is rolled again, so as to cycle mixing; Or the coil feeding part is a passive coiling part, which includes a material blocking plate which is elastically attached to the top side of the front roller and a material guide plate for supporting the material blocking plate to deflect and open the top gap. The material guide plate is located on the outside of the lower half of the roller, and a shovel bar which is slidably engaged with the front side of the roller is provided at the top of the front side. The composite material is guided to the shovel bar through the material guide plate and turned toward the material blocking plate, and formed into a self-rolling state under the guiding action of the material blocking plate until the outer diameter of the self-rolling becomes larger and pushes the material blocking plate away, and then returns with the movement of the roller and is rolled again, so as to circulate mixing.

[0008] As a further improvement of the present technical solution, two drum racks are symmetrically and vertically arranged on the front top of the material guide rack, and the top side wall of the drum rack is provided with a horizontally extending slide groove, and both ends of the central axis of the winding drum are slidably connected with the slide groove, and the winding drum is a hollow cylinder or a regular polygonal hollow cylinder.

[0009] As a further improvement of the present technical solution, the transmission group includes a transmission belt, a telescopic rod linearly connecting the roller and the winding drum, and a bandage rod hinged to the upper and lower sides of the outer tube of the telescopic rod. A folding spring sheet is arranged between the bandage rod and the telescopic rod for controlling the transmission belt to switch between an expanded state and a closed state.

[0010] As a further improvement of the technical solution, the outer end of the bandage rod is rotatably connected to a roller, and the roller is an I-shaped round roller and is rollingly engaged with the transmission belt.

[0011] As a further improvement of the technical solution, a large pulley and a small pulley are respectively provided at both ends of the transmission belt, the large pulley is sleeved and matched with the central shaft end of the roller located in the front, and the small pulley is sleeved and matched with the central shaft end of the winding drum.

[0012] As a further improvement of the present technical solution, large rings are provided on both sides of the closed end of the outer tube of the telescopic rod, and the large rings are gap-sleeved with the large pulley. Small rings are provided on both sides of the outer end of the inner tube of the telescopic rod, and the small rings are gap-sleeved with the small pulley.

[0013] As a further improvement of the present technical solution, the material guide frame is in the form of an arc plate and its central axis coincides with the central axis of the roller located in the front, a material cutting plate is tangentially extended at the rear end of the material guide frame, and a scraper strip is provided at the upper end of the material cutting plate which is slidably engaged with the side wall of the roller located at the rear.

[0014] As a further improvement of the technical solution, supports are provided on the bottom surfaces of both side ends of the material guide rack, the supports are clamped with the body tray, and a plurality of reinforcing ribs are provided at equal intervals on the front side surface of the material guide rack.

[0015] As a further improvement of the present technical solution, the material blocking plate is composed of an integrally formed arc plate and a straight plate, the top two sides of the straight plate are rotatably connected to the upper side walls of the front side of the material guide plate, and a plurality of folding elastic strips are embedded in the front side surface of the material guide plate, and the forward section of the folding elastic strips abuts against the inner side surface of the straight plate.

[0016] As a further improvement of the technical solution, the guide plate and the guide rack have the same structure and size, the guide plate and the guide rack have different structures at the front top, and a plurality of oblique ribs are provided at equal intervals on the top surface of the shoveling strip.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The highly dispersed anion non-metallic additive powder is used in the mixing equipment of polypropylene composite materials. The torque of the roller is transmitted through the transmission group to drive the coil drum to rotate and roll the colloid on the outer wall of the roller. The larger the rolled colloid is, the more it will slide away from the coil drum. As the roller rotates, it returns to the gap between the tops of the two rollers so that it can all be gathered between the tops of a pair of rollers and fully re-rolled and mixed to avoid uneven mixing and save time. This automated design replaces manual operation and also improves safety.

[0018] 2. The highly dispersed anion non-metallic additive powder is applied to the mixing equipment of polypropylene composite materials. The colloid on the outer wall of the roller is guided to form a self-roll through the obstruction of the material blocking plate. The larger the rolled colloid is, the more it will slide away from the material blocking plate. As the roller rotates back to the gap between the tops of the two rollers, it can all be gathered between the tops of a pair of rollers and fully re-rolled and mixed to avoid uneven mixing and save time. This automated design replaces manual operation and also improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art, under the guidance of the present invention, select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0020] Figure 1 It is one of the overall structural schematic diagrams of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the active coiling part of the present invention; Figure 3 It is a side view of the initial state of the active coiling part of the present invention; Figure 4 It is a side view of the active coiling part of the present invention in a coiling state; Figure 5 It is a structural schematic diagram of the material guide frame of the present invention; Figure 6 It is a schematic diagram of the assembly structure of the winding drum and the transmission group of the present invention; Figure 7 It is a disassembled diagram of the transmission group of the present invention; Figure 8 This is the second schematic diagram of the overall structure of the present invention; Fig. 9 It is a schematic diagram of the assembly structure of the passive coiling part of the present invention; Fig.10 It is a side view of the passive coiling part of the present invention in an initial state; Fig.11 It is a side view of the passive coiling part of the present invention in a coiling state; Fig.12 It is a structural schematic diagram of the material guide plate of the present invention; Fig.13 It is a schematic diagram of the structure of the material blocking plate of the present invention; The meaning of each number in the figure is: 100, machine body; 110, roller; 200, active coiling unit; 210, guide rack; 211, drum rack; 212, cutting plate; 213, scraper strip; 214, support; 215, reinforcing rib; 220, coiling drum; 230, transmission group; 231, transmission belt; 2311, large pulley; 2312, small pulley; 232, telescopic rod; 2321, large ring; 2322, small ring; 233, bandage rod; 2331, roller; 234, folding spring; 300, passive coiling part; 310, material guide plate; 320, material blocking plate; 321, curved plate; 322, straight plate; 323, folding spring strip; 330, material shoveling strip; 331, oblique rib. DETAILED DESCRIPTION

[0021] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, the technical personnel's conception is based on any possible variation of the present invention, which should be regarded as belonging to the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which means direct connection and indirect connection through an intermediate medium.

[0022] The terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inside", "outside" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined. Example 1

[0023] See also Figure 1-Figure 7As shown, the present invention provides a mixing device for applying highly dispersed anionic non-metallic additive powder to polypropylene composite materials, comprising a machine body 100 and a pair of rollers 110 in a relatively reversed state inside the machine body 100, wherein a heating system is arranged inside the rollers 110 for controlling the temperature thereof, so that the colloid tightly wraps the rollers 110 in front and rotates with it; a colloid-like polypropylene composite material is placed between the tops of the pair of rollers 110, and is rolled into a sheet and adsorbed on the rollers 110 and rotates with it; and a highly dispersed anionic non-metallic additive powder is added between the tops of the pair of rollers 110. The metal additive powder is mixed and kneaded, and the kneading process is completed after multiple cycles of mixing and uniform mixing; a coil feeding part is arranged outside the roller 110 in front of the machine body 100, which is used to actively guide the composite material to self-roll in front of the roller 110, and adaptively release the coil to move with the roller 110 back to between the tops of a pair of rollers 110; the colloid in sheet form adsorbed on the outer wall of the roller 110 is adjusted into a roll shape so that it can all be gathered between the tops of the pair of rollers 110, and fully re-rolled and mixed, thereby avoiding uneven mixing and saving time.

[0024] Specifically, the coil feeding section is an active coil section 200, which includes a coil drum 220 coaxially suspended on the front side of the roller 110 located in the front, a transmission group 230 arranged between the roller 110 and the end of the coil drum 220, and a guide frame 210 for supporting the horizontal displacement of the coil drum 220; the transmission group 230 transmits the torque of the roller 110 to drive the coil drum 220 to rotate and move the colloid on the outer wall of the roller 110 to self-roll; because the outer diameter of the colloid increases as it rolls, the coil drum 220 is arranged to slide horizontally on the guide frame 210 to increase the space for the colloid to self-roll. At this time, the adsorption force of the rolled colloid with the roller 110 is greater than the downward pressure of the coil drum 220, and the rolled colloid will slide and separate from the coil drum 220, and as the roller 110 rotates, it returns to the gap between the tops of the two rollers 110 to be fully rolled and mixed.

[0025] Furthermore, the guide frame 210 is located on the outer side of the lower half of the roller 110, and is used to guide the composite material to adhere to the roller 110 and then move to the winding drum 220, and is switched to a self-winding state by the rotating friction of the winding drum 220 until the outer diameter of the self-winding becomes larger and pushes the winding drum 220 away, and then moves back with the roller 110 and is rolled again, thereby circulating the mixing.

[0026] Two drum racks 211 are symmetrically and vertically arranged on the top of the front side of the material guide rack 210. The top side wall of the drum rack 211 is provided with a horizontally extending slide groove. The two ends of the central axis of the winding drum 220 are slidably plugged into the slide groove. The winding drum 220 is a hollow cylinder or a regular polygonal hollow cylinder. The number of sides of the regular polygonal hollow cylinder is at least 6, so as to form a side surface that constantly contacts the colloid. When the colloid rushes up, it is rolled into a roll by the continuously rotating winding drum 220.

[0027] Specifically, the transmission group 230 includes a transmission belt 231, a telescopic rod 232 linearly connecting the roller 110 and the winding drum 220, and a bandage rod 233 hinged on the upper and lower sides of the outer tube of the telescopic rod 232. A folding spring sheet 234 is arranged between the bandage rod 233 and the telescopic rod 232. The folding spring sheet 234 is made of spring steel and is in the shape of a bent sheet. When it is squeezed, it will form a rebound force, thereby controlling the transmission belt 231 to switch between the unfolded and closed states. When the transmission belt 231 is stretched open by a pair of bandage rods 233, the telescopic rod 232 is in a shortened state. When the colloid is rolled up, it will continuously push the winding drum 220 forward, thereby driving the telescopic rod 232 to extend. At this time, it will drive the transmission belt 231 to close together and cooperate with the adjustment of the distance, thereby squeezing the folding spring sheet 234 to bend. After the colloid leaves, the rebound transmission belt 231 will unfold, thereby resetting the winding drum 220, and waiting for the next repetitive work.

[0028] Furthermore, the outer end of the bandage rod 233 is rotatably connected to a roller 2331, which is an I-shaped round roller and is rollingly engaged with the transmission belt 231, thereby limiting the transmission belt 231 from slipping and stably supporting the transmission belt 231 for transmission.

[0029] A large pulley 2311 and a small pulley 2312 are respectively sleeved on both ends of the transmission belt 231 . The large pulley 2311 is sleeved and matched with the central shaft end of the roller 110 located in the front, and the small pulley 2312 is sleeved and matched with the central shaft end of the winding drum 220 .

[0030] Furthermore, large rings 2321 are provided on both sides of the closed end of the outer tube of the telescopic rod 232, and the large rings 2321 are gap-fitted with the large pulley 2311. Small rings 2322 are provided on both sides of the outer end of the inner tube of the telescopic rod 232, and the small rings 2322 are gap-fitted with the small pulley 2312, so that the telescopic rod 232 forms a linear connection between the roller 110 and the winding drum 220, and adaptively adjusts the distance between the two.

[0031] Furthermore, the material guide frame 210 is an arc plate and its central axis is arranged to coincide with the central axis of the roller 110 located in the front. A material cutting plate 212 is tangentially extended from the rear end of the material guide frame 210. The upper end of the material cutting plate 212 is provided with a scraper strip 213 that is slidably engaged with the side wall of the roller 110 located at the rear, which is used to guide the colloid adsorbed on the side wall of the roller 110 at the rear to be scraped off by the scraper strip 213 and slide along the material cutting plate 212 to the bottom of the material guide frame 210, turn the corner, and then emerge from the top front side of the material guide frame 210.

[0032] Supports 214 are provided on the bottom surfaces of both side ends of the guide frame 210, and the support 214 is clamped with the tray of the machine body 100. A plurality of reinforcing ribs 215 are provided at equal intervals on the front side surface of the guide frame 210, so that the guide frame 210 as a whole maintains an axially straight state.

[0033] When the mixing equipment of the highly dispersed anionic non-metallic additive powder of the present invention is applied to polypropylene composite materials, the colloid adsorbed on the outer wall of the roller 110 is guided to emerge from the front top of the guide frame 210 through the guide frame 210; the torsion of the roller 110 is then transmitted through the transmission group 230 to drive the winding drum 220 to rotate and move the colloid on the outer wall of the roller 110 to roll itself; the rolled colloid will be staggered and slid apart from the winding drum 220 as it rolls larger, and will return to the gap between the tops of the two rollers 110 as the rollers 110 rotate, so as to be fully gathered between the tops of a pair of rollers 110, and fully re-rolled and mixed, thereby avoiding uneven mixing and saving time. Example 2

[0034] See also Figure 8-Figure 13 As shown, the present invention provides a mixing device for applying highly dispersed anionic non-metallic additive powder to polypropylene composite materials, comprising a machine body 100 and a pair of rollers 110 in a relatively reversed state inside the machine body 100, wherein a heating system is arranged inside the rollers 110 for controlling the temperature thereof, so that the colloid tightly wraps the rollers 110 in front and rotates with it; a colloid-like polypropylene composite material is placed between the tops of the pair of rollers 110, and is rolled into a sheet and adsorbed on the rollers 110 and rotates with it; and a highly dispersed anionic non-metallic additive powder is added between the tops of the pair of rollers 110. The metal additive powder is mixed and kneaded, and the kneading process is completed after multiple cycles of mixing and uniform mixing; a coil feeding part is arranged outside the roller 110 in front of the machine body 100, which is used to actively guide the composite material to self-roll in front of the roller 110, and adaptively release the coil to move with the roller 110 back to between the tops of a pair of rollers 110; the colloid in sheet form adsorbed on the outer wall of the roller 110 is adjusted into a roll shape so that it can all be gathered between the tops of the pair of rollers 110, and fully re-rolled and mixed, thereby avoiding uneven mixing and saving time.

[0035] Specifically, the coil feeding section is a passive coil section 300, which includes a material blocking plate 320 that is elastically attached to the top side of the front roller 110 and a material guide plate 310 for supporting the material blocking plate 320 to deflect and open the top gap; the colloid on the outer wall of the roller 110 is blocked by the material blocking plate 320 to guide it to form a self-roll; because the outer diameter of the colloid increases as it rolls, the material blocking plate 320 is set to deflect and expand the space for the colloid to self-roll. At this time, the adsorption force of the rolled colloid with the roller 110 is greater than the downward pressure of the material blocking plate 320, and the rolled colloid will slide and separate from the material blocking plate 320, and as the roller 110 rotates, it returns to the gap between the tops of the two rollers 110 to be fully rolled and mixed.

[0036] The material guide plate 310 is located on the outer side of the lower half of the roller 110, and a shoveling bar 330 is provided at the top of the front side thereof, which is slidably engaged with the front side of the roller 110. The composite material is guided to the shoveling bar 330 by the material guide plate 310 and turned toward the material blocking plate 320, and forms a self-rolling state under the guidance of the material blocking plate 320 until the outer diameter of the self-rolling becomes larger and pushes the material blocking plate 320 away, and then returns with the movement of the roller 110 and is rolled again, thereby cyclically mixing.

[0037] Furthermore, the material blocking plate 320 is composed of an arc plate 321 and a straight plate 322 formed in one piece. The top two sides of the straight plate 322 are rotatably connected to the upper side wall of the front side of the material guide plate 310. A plurality of folding spring strips 323 are embedded in the front side surface of the material guide plate 310. The folding spring strips 323 are made of spring steel in the shape of bent sheets, and the forward section of the folding spring strips 323 abuts against the inner side surface of the straight plate 322, so that the straight plate 322 is rebounded by the material guide plate 310, so that the material blocking plate 320 can rebound and compress the colloid to roll itself.

[0038] Furthermore, the guide plate 310 has the same structure and size as the guide frame 210, so as to guide the colloid adsorbed on the side wall of the rear roller 110 to be scraped off by the scraper strip 213 and slide along the cutting plate 212 to the bottom of the guide frame 210, turn, and then emerge from the top front side of the guide frame 210; the structure of the guide plate 310 and the front top of the guide frame 210 is different, because the different working modes of the blocking plate 320 and the winding drum 220 result in the formation of two different structures of the drum frame 211 and the shoveling strip 330; a plurality of oblique ribs 331 are arranged at equal intervals on the top surface of the shoveling strip 330 to strengthen the bending resistance of the shoveling strip 330, so as to smoothly shovel the colloid off the outer wall of the roller 110.

[0039] When the mixing equipment of the highly dispersed anionic non-metallic additive powder of the present invention is applied to polypropylene composite materials, the colloid adsorbed on the outer wall of the roller 110 is guided to emerge from the front top of the guide frame 210 through the material guide frame 210; the colloid on the outer wall of the roller 110 is then blocked by the material blocking plate 320 to form a self-roll, and the rolled colloid becomes larger and larger and slides away from the material blocking plate 320, and as the roller 110 rotates, it returns to the gap between the tops of the two rollers 110 so that all of it can be gathered between the tops of a pair of rollers 110, and fully re-rolled and mixed, thereby avoiding uneven mixing and saving time.

[0040] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A mixing device for polypropylene composite materials using highly dispersed anionic non-metallic additive powders, comprising a machine body and a pair of rollers in a relatively reverse direction therein, characterized in that: A coil feeding part is arranged outside the roller in front of the machine body, which is used to actively guide the composite material to self-roll in front of the roller and adaptively release the coil to move with the roller back between the tops of the pair of rollers; The coil feeding section is an active coil section, which includes a coil drum coaxially suspended on the front side of the roller located in front, a transmission group arranged between the roller and the end of the coil drum, and a guide frame for supporting the horizontal displacement of the coil drum; the guide frame is located on the outer side of the lower half of the roller, and is used to guide the composite material to adhere to the roller and then move to the coil drum, and is switched to a self-rolling state by the friction force of the rotation of the coil drum, until the outer diameter of the self-roll becomes larger and pushes the coil drum away, and returns with the movement of the roller and is rolled again, so as to cycle mixing; Or the coil feeding part is a passive coiling part, which includes a material blocking plate which is elastically attached to the top side of the front roller and a material guide plate for supporting the material blocking plate to deflect and open the top gap. The material guide plate is located on the outside of the lower half of the roller, and a shovel bar which is slidably engaged with the front side of the roller is provided at the top of the front side. The composite material is guided to the shovel bar through the material guide plate and turned toward the material blocking plate, and formed into a self-rolling state under the guiding action of the material blocking plate until the outer diameter of the self-rolling becomes larger and pushes the material blocking plate away, and then returns with the movement of the roller and is rolled again, so as to circulate mixing.

2. The highly dispersed anion non-metallic additive powder according to claim 1 is applied to a mixing device for polypropylene composite materials, characterized in that: Two drum racks are symmetrically and vertically arranged on the front top of the material guide rack, and a horizontally extending slide groove is opened on the top side wall of the drum rack. Both ends of the central axis of the winding drum are slidably plugged into the slide groove, and the winding drum is a hollow cylinder or a regular polygonal hollow cylinder.

3. The highly dispersed anion non-metallic additive powder according to claim 2 is applied to a mixing device for polypropylene composite materials, characterized in that: The transmission group includes a transmission belt, a telescopic rod linearly connecting the roller and the winding drum, and a bandage rod hinged to the upper and lower sides of the outer tube of the telescopic rod. A folding spring sheet is provided between the bandage rod and the telescopic rod to control the transmission belt to switch between the unfolded and closed states.

4. The highly dispersed anion non-metallic additive powder according to claim 3 is applied to a mixing device for polypropylene composite materials, characterized in that: The outer end of the bandage rod is rotatably connected with a roller, and the roller is an I-shaped round roller and is rollingly engaged with the transmission belt.

5. The highly dispersed anion non-metallic additive powder according to claim 4 is applied to a mixing device for polypropylene composite materials, characterized in that: The two ends of the transmission belt are respectively sleeved with a large pulley and a small pulley, the large pulley is sleeved and matched with the central shaft end of the roller located in the front, and the small pulley is sleeved and matched with the central shaft end of the winding drum.

6. The highly dispersed anion non-metallic additive powder according to claim 5 is applied to a mixing device for polypropylene composite materials, characterized in that: Large rings are arranged on both sides of the closed end of the outer tube of the telescopic rod, and the large rings are sleeved with the large pulley in a gap. Small rings are arranged on both sides of the outer end of the inner tube of the telescopic rod, and the small rings are sleeved with the small pulley in a gap.

7. The highly dispersed anion non-metallic additive powder according to claim 6 is applied to a mixing device for polypropylene composite materials, characterized in that: The material guide frame is in the form of an arc plate and its central axis coincides with the central axis of the roller located in the front. A material cutting plate is tangentially extended from the rear end of the material guide frame, and a scraper strip is provided at the upper end of the material cutting plate for sliding engagement with the side wall of the roller located in the rear.

8. The highly dispersed anion non-metallic additive powder according to claim 7 is applied to a mixing device for polypropylene composite materials, characterized in that: The bottom surfaces of both side ends of the material guide frame are provided with supports, the supports are clamped with the machine body tray, and a plurality of reinforcing ribs are provided at equal intervals on the front side surface of the material guide frame.

9. The highly dispersed anion non-metallic additive powder according to claim 8 is applied to a mixing device for polypropylene composite materials, characterized in that: The material blocking plate is composed of an arc plate and a straight plate integrally formed, the top two sides of the straight plate are rotatably connected to the upper side wall of the front side of the material guide plate, a plurality of folding spring bars are embedded in the front side of the material guide plate, and the forward section of the folding spring bars abuts against the inner side of the straight plate.

10. The highly dispersed anion non-metallic additive powder according to claim 9 is applied to a mixing device for polypropylene composite materials, characterized in that: The guide plate and the guide rack have the same structure and size, but the front top of the guide plate and the guide rack have different structures. The top surface of the shoveling strip is provided with a plurality of oblique ribs at equal intervals.

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