Mixing Equipment for High-Dispersibility Negative-Ion Non-Metallic Additive Powder Applied to Polypropylene Composites

Abstract

The present invention relates to the technical field of composite material mixing, specifically a mixing device for applying a highly dispersive negative ion non-metallic additive powder to a polypropylene composite material, including a machine body and a pair of rollers inside the machine body. Among them, 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 this roller and adaptively release the coil material to move back between the tops of the pair of rollers along with the roller; the coil feeding part is an active coil feeding part, including a coil cylinder, a transmission group and a material guiding frame. In the present invention, the torque of the roller is transmitted through the transmission group to drive the coil cylinder to rotate, and the colloid on the outer wall of the roller is stirred to self-roll; as the coiled colloid becomes larger and larger, it will slide and separate from the coil cylinder, and then return to the gap between the tops of the two rollers as the roller rotates, so as to gather all between the tops of the pair of rollers and be fully re-rolled and mixed again, avoiding uneven mixing, saving time. This automated design replaces manual operation and also improves safety.

Description

Technical Field

[0001] The present invention relates to the technical field of composite material mixing, specifically a mixing device for applying highly dispersible negative ion non-metallic additive powder to polypropylene composites. Background Art

[0002] As a general thermoplastic, polypropylene has limitations in terms of mechanical strength, heat resistance, and functional characteristics, making it difficult to meet the requirements of high-end application scenarios. Negative ion materials such as tourmaline and rare earth minerals can adsorb harmful substances in the air by releasing negative ions, and have effects such as purifying the air and antibacterial. Highly dispersible negative ion non-metallic powders can significantly improve their dispersion uniformity in the polypropylene matrix through surface modification, nanosizing, or composite structure design, reducing performance losses caused by agglomeration.

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

[0004] The invention patent with the application number CN201911411541.2 discloses a mixing device for preparing high-performance polymer alloys, including a mixing chamber, two groups of stirrers are arranged in the mixing chamber, an extrusion screw and a cleaning screw are also connected in the mixing chamber, fixing plates are connected to both sides of the mixing chamber, multiple groups of material blocking mechanisms are arranged above the cleaning screw in the mixing chamber, the material blocking mechanisms are connected to the fixing plates, and a material dropping groove is also opened above the cleaning screw in the mixing chamber.

[0005] It can be seen that in the mixing device, a composite material can be formed by pouring highly dispersible negative ion non-metallic additive powder onto polypropylene colloid and rolling, mixing, and kneading while controlling the temperature to increase the functionality of polypropylene; traditional mixing is to continuously circulate and mix the colloid by rolling with a pair of rollers. Since the colloid is rolled into sheets and adsorbed on the outer wall of the rollers, there is less overall contact opportunity for the colloid during each cycle of rolling, resulting in the need for a large amount of time to support the mixing to ensure uniformity; for this reason, even manually intercepting and curling the colloid and then moving it as a whole for rolling increases the labor intensity and lacks safety; the above patent stirs the materials in the mixing chamber through a stirrer with blades, thereby separating the materials into multiple portions for mixing. It will also inevitably require a long time for mixing to ensure uniformity like the traditional process, that is, a large amount of time cost needs to be paid, which does not conform to the industrial 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 negative ion non-metallic additive powder to polypropylene composites, so as to solve the problems raised in the above background technology.

[0007] To achieve the above purpose, the present invention provides a mixing device for applying highly dispersed negative ion non-metallic additive powder to polypropylene composites, including a machine body and a pair of rollers that rotate relatively inside it. Among them, 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-coil in front of this roller, and adaptively release the coiled material to move back between the tops of the pair of rollers along with the roller.

[0008] The coil feeding part is an active coil feeding part. The active coil feeding part includes a coiling cylinder coaxially suspended on the front side of the roller in front, a transmission group arranged between the ends of this roller and the coiling cylinder, and a guiding frame for supporting the horizontal displacement of the coiling cylinder. The guiding frame is located outside the lower half of this roller and is used to guide the composite material to adhere to this roller and move to the coiling cylinder, and is switched to the self-coiling state by the rotational friction force of the coiling cylinder until the self-coiling outer diameter becomes larger and pushes away the coiling cylinder, and then returns along with this roller and is re-rolled, so as to cycle and mix.

[0009] Or the coil feeding part is a passive coil feeding part. The passive coil feeding part includes a blocking plate elastically clamped on the top side of the roller in front and a guiding plate for supporting the deflection and opening of the blocking plate to form a top gap. The guiding plate is located outside the lower half of this roller, and a shoveling strip that is slidably clamped with the front side of this roller is arranged at intervals on the top of its front side. The composite material is led to the shoveling strip by the guiding plate and turns towards the blocking plate, and forms a self-coiling state under the guiding action of the blocking plate until the self-coiling outer diameter becomes larger and pushes away the blocking plate, and then returns along with this roller and is re-rolled, so as to cycle and mix.

[0010] As a further improvement of this technical solution, two cylinder placing frames are symmetrically and vertically arranged at the top of the front side of the guiding frame. A horizontally extending sliding groove is opened on the top side wall of the cylinder placing frame, and both ends of the central axis of the coiling cylinder are slidably inserted into the sliding groove. The coiling cylinder is a hollow cylinder or a regular polygon hollow cylinder.

[0011] As a further improvement of this technical solution, the transmission group includes a transmission belt, a telescopic rod linearly connecting the roller and the coiling cylinder, and a bandage rod hinged to the upper and lower sides of the outer tube of the telescopic rod. A folding elastic sheet is arranged between the bandage rod and the telescopic rod, which is used to control the switching of the transmission belt between the unfolded and folded states.

[0012] As a further improvement of this technical solution, a supporting roller is rotatably connected to the outer end of the bandage rod. The supporting roller is an I-shaped round roller and is in rolling engagement with the transmission belt.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 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.

[0021] 2. The high-dispersibility negative ion non-metal additive powder is applied to the mixing equipment of polypropylene composites. The colloid on the outer wall of the roller is guided to form self-rolling by the blocking of the material blocking plate and becomes a roll. As the rolled colloid gets bigger and bigger, it will slide and separate from the material blocking plate, and then return to the gap at the top of the two rollers as the roller rotates, so as to gather completely between the tops of a pair of rollers and be fully re-rolled and mixed again, avoiding uneven mixing, saving time. This automated design replaces manual operation and also improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to assist in understanding the present invention, rather than specifically limiting the shapes and proportional dimensions of the components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions according to specific circumstances to implement the present invention under the teaching of the present invention.

[0023] Figure 1 One of the overall structural schematic diagrams of the present invention;

[0024] Figure 2 The assembly structure schematic diagram of the active coiling part of the present invention;

[0025] Figure 3 The side view of the initial state of the active coiling part of the present invention;

[0026] Figure 4 The side view of the coiling state of the active coiling part of the present invention;

[0027] Figure 5 The structural schematic diagram of the material guiding frame of the present invention;

[0028] Figure 6 The assembly structure schematic diagram of the coiling cylinder and the transmission group of the present invention;

[0029] Figure 7 The exploded view of the transmission group of the present invention;

[0030] Figure 8 Another overall structural schematic diagram of the present invention;

[0031] Figure 9 The assembly structure schematic diagram of the passive coiling part of the present invention;

[0032] Figure 10 The side view of the initial state of the passive coiling part of the present invention;

[0033] Figure 11 The side view of the coiling state of the passive coiling part of the present invention;

[0034] Figure 12Schematic diagram of the material guiding plate structure of the present invention;

[0035] Figure 13 Schematic diagram of the material blocking plate structure of the present invention;

[0036] The meanings of the labels in the figure are as follows:

[0037] 100, body; 110, roller;

[0038] 200, active coil feeding part; 210, material guiding frame; 211, cylinder placing frame; 212, cutting plate; 213, scraping strip; 214, support; 215, reinforcing rib; 220, coil cylinder; 230, transmission group; 231, transmission belt; 2311, large pulley; 2312, small pulley; 232, telescopic rod; 2321, large collar; 2322, small collar; 233, bandage rod; 2331, supporting roller; 234, folding elastic piece;

[0039] 300, passive coil feeding part; 310, material guiding plate; 320, material blocking plate; 321, arc plate; 322, straight plate; 323, folding elastic strip; 330, shoveling strip; 331, inclined rib. Specific embodiments

[0040] Combined with the description of the specific embodiments of the present invention and the accompanying drawings, the details of the present invention can be more clearly understood. However, the specific embodiments of the present invention described herein are only for the purpose of explaining the present invention and cannot be understood in any way as a limitation of the present invention. Under the teaching of the present invention, the concepts of those skilled in the art are based on any possible deformations of the present invention, and these should all be regarded as belonging to the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which can be directly connected or indirectly connected through an intermediate medium.

[0041] The orientation or positional relationship indicated by the terms "central axis", "vertical", "horizontal", "front", "rear", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. used in this article is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 of 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

[0042] Please refer to Figures 1 - 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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 .

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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

[0053] See also Figures 8 - 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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 plate 310 through the guide plate 310; the colloid on the outer wall of the roller 110 is then blocked by the blocking plate 320 to form a self-roll. The rolled colloid becomes larger and larger and slides away from the blocking plate 320. As the rollers 110 rotate, they return to the gap between the tops of the two rollers 110 so that they can all be gathered between the tops of a pair of rollers 110 and fully re-rolled and mixed, thereby avoiding uneven mixing and saving time.

[0059] 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; Two drum racks are symmetrically and vertically arranged on the front top of the material guide rack, and a horizontally extending slide groove is provided on the top side wall of the drum rack. Both ends of the central axis of the material drum are slidably plugged into the slide groove, and the material drum is a hollow cylinder or a regular polygonal hollow cylinder; 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, and a folding spring is arranged between the bandage rod and the telescopic rod to control the transmission belt to switch between the unfolded state and the closed state; The outer end of the bandage rod is rotatably connected to a roller, the roller is an I-shaped round roller and is rollingly engaged with the transmission belt; The two ends of the transmission belt are respectively sleeved with a large pulley and a small pulley, the large pulley is sleeved with the central shaft end of the roller located in the front, and the small pulley is sleeved with the central shaft end of the winding drum; Large rings are provided at both sides of the closed end of the outer tube of the telescopic rod, and the large rings are sleeved with the large pulleys; small rings are provided at both sides of the outer end of the inner tube of the telescopic rod, and the small rings are sleeved with the small pulleys; 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.

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: 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.

3. 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 part is a passive coil 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 outside the lower half of the roller, and a shovel bar which is slidably engaged with the front side of the roller is provided at intervals on the top of the front side. The composite material is guided to the shovel bar by the material guide plate and turned toward the material blocking plate, and forms 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 cycle mixing; 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. A plurality of folding spring bars are embedded in the front side surface of the material guide plate. The folding spring bars are made of spring steel in the shape of bent sheets, and the forward section of the folding spring bars abuts against the inner side surface of the straight plate. A plurality of oblique ribs are evenly spaced on the top surface of the material shoveling strip.

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