Extruder feeding device for compatilizer manufacturing

Abstract

The utility model relates to the technical field of compatilizer processing, in particular to an extruder feeding device for compatilizer manufacturing, which comprises a storage box, a horizontal spiral conveying mechanism is connected to the lower end of the storage box, the horizontal spiral conveying mechanism comprises a conveying barrel and a spiral conveyor arranged in an inner cavity of the conveying barrel in a penetrating manner, and the spiral conveyor is connected with the storage box. The outer circle of the discharging end of the conveying barrel is sleeved with a vertical discharging barrel, the spiral conveyor is connected with an elastic scraping plate assembly capable of moving in the radial direction, the elastic scraping plate assembly is connected with at least two limiting rolling bodies at intervals, and the limiting rolling bodies are connected with the inner wall of the conveying barrel in a rolling mode. The elastic scraping plate assembly is suitable for being prevented from making contact with the inner wall of the conveying barrel. The material conveying device is simple in structure, the spiral material conveying device works to drive the elastic material scraping plate assembly to rotate, compatilizer mixed raw materials adhered to the inner wall of the material conveying barrel are scraped off and then conveyed, the probability of blockage is reduced, and the stability of the compatilizer mixed raw materials flowing into an extruder from a material storage box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compatibilizer processing, in particular to an extruder feeding device for making a compatibilizer. Background Art

[0002] Compatibilizer, also known as macromolecular coupling agent or volume extender, refers to an auxiliary agent that uses the intermolecular bonding force to promote the combination of two incompatible polymers to obtain a stable blend. Its working principle is mainly based on the intermolecular bonding force to help form a stable blend. There are many types of compatibilizers, such as non-reactive copolymers and reactive copolymers, so the ingredients of the compatibilizer will vary according to these different types of compatibilizers. Generally speaking, the ingredients of the compatibilizer may include some basic polymer materials, which are subjected to specific chemical treatment or modification to provide the required compatibility. In addition, some auxiliary ingredients may need to be added, such as catalysts, stabilizers, antioxidants, etc., to optimize the performance of the compatibilizer or extend its service life. The various materials of the compatibilizer need to be evenly mixed and then flow into the storage box for storage. The mixed raw materials in the storage box are then evenly flowed into the extruder for processing according to demand. Therefore, in order to allow the mixed raw materials in the storage box to flow evenly into the extruder, a screw feeding method is usually used to transfer the mixed raw materials of the compatibilizer in the storage box to the extruder.

[0003] With regard to the above-mentioned related technologies, the inventors found that the compatibilizer mixed raw materials are relatively soft and have a certain elasticity. When the spiral is feeding, the compatibilizer mixed raw materials produce friction with each other and friction with the inner wall of the transmission cylinder, causing the compatibilizer mixed raw materials to adhere to the inner wall of the transmission cylinder and cause blockage, thereby reducing the stability of the compatibilizer mixed raw materials in the storage box when entering the extruder. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide an extruder feeding device made of a compatibilizer. The screw feeder drives the elastic scraper plate assembly to rotate to scrape the compatibilizer mixed raw materials adhered to the inner wall of the feed barrel and then transmit them, thereby reducing the probability of blockage and improving the stability of the compatibilizer mixed raw materials flowing from the storage box into the extruder.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an extruder feeding device made of a compatibilizer, comprising: a storage box, the lower end of which is connected to a horizontal screw feeding mechanism, and also includes an air-cooled cooling mechanism for blowing air into the storage box;

[0006] The horizontal screw feeding mechanism includes a feeding barrel and a screw feeder penetrating the inner cavity thereof, the outer edge of the discharge end of the feeding barrel is sleeved with a vertical discharge barrel, the screw feeder is connected to an elastic scraper plate assembly movable in a radial direction, the elastic scraper plate assembly is connected to at least two limiting rolling bodies at intervals, the limiting rolling bodies are rollingly connected to the inner wall of the feeding barrel, and are suitable for preventing the elastic scraper plate assembly from contacting the inner wall of the feeding barrel.

[0007] By adopting the above technical scheme, when in use, the compatibilizer raw materials are mixed and stirred and then input into the storage box for storage. After the extruder is started, the screw feeder is operated to work, and the compatibilizer mixed raw materials in the storage box flow into the feeding barrel. The screw feeder uniformly spirally transmits the compatibilizer mixed raw materials in the storage box to the extruder. In this process, the compatibilizer mixed raw materials rub against each other, and friction is generated between the compatibilizer mixed raw materials and the feeding barrel. The compatibilizer mixed raw materials rub against each other, so that the temperature of the surface of the compatibilizer mixed raw materials increases, and the compatibilizer mixed raw materials are easily adhered to the inner wall of the feeding barrel to cause blockage. Since the operation of the screw feeder drives the elastic scraper plate assembly to rotate in a circle, the elastic scraper The plate assembly scrapes off the compatibilizer mixed raw materials adhering to the inner wall of the feed barrel, and the scraped mixed raw materials are driven into the extruder by the screw feeder, which reduces the probability of the compatibilizer mixed raw materials being blocked in the feed barrel and improves the stability of the compatibilizer mixed raw materials flowing from the storage box into the extruder; since the compatibilizer raw materials have more heat inside after being mixed and stirred, the compatibilizer mixed raw materials are easily bonded to form blocks. At this time, the air-cooled cooling mechanism works to generate a large amount of wind that is dissipated into the compatibilizer mixed raw materials. The wind takes away the heat inside the compatibilizer mixed raw materials, thereby reducing the viscosity of the surface of the compatibilizer mixed raw materials, making it easier for the compatibilizer mixed raw materials in the storage box to smoothly enter the interior of the feed barrel, thereby enhancing the stability of extruder feeding.

[0008] In a preferred example, the utility model can be further configured as follows: the screw feeder includes an end plate and a rotating shaft, the end plate is connected to one end of the feed barrel away from the vertical discharge barrel, the rotating shaft is passed through the end plate and is rotatably connected thereto, one end of the rotating shaft is connected to a motor, and the other end is passed through the side wall of the vertical discharge barrel, and the outer edge of the rotating shaft is sleeved with a spiral transmission blade.

[0009] By adopting the above technical solution, the motor drives the rotating shaft to rotate, and the rotating shaft drives the spiral transmission blades to rotate. The spiral transmission blades transfer the compatibilizer mixed raw materials from one end of the feed barrel to the vertical discharge barrel. The compatibilizer mixed raw materials in the vertical discharge barrel can flow into the extruder evenly and smoothly.

[0010] In a preferred example, the utility model can be further configured as follows: the elastic scraper plate assembly includes a strip scraper plate and a plurality of elastic support rods arranged at intervals, one end of the elastic support rod is connected to the rotating shaft, and the other end is connected to the strip scraper plate.

[0011] By adopting the above technical solution, the elastic support rod supports the strip scraper, and the elastic support rod drives the strip scraper to move toward the inner wall of the feeding barrel, so that the circularly rotating strip scraper scrapes off the compatibilizer mixed raw materials adhered to the inner wall of the feeding barrel.

[0012] In a preferred example, the utility model can be further configured as follows: the elastic support rod comprises an L-shaped plate, a round rod and a spring sleeved on the round rod, one side of the L-shaped plate is connected to the strip scraper, and the other side is penetrated by the round rod, one end of the round rod away from the L-shaped plate is connected to the rotating shaft, and the other end of the round rod is spirally connected with a nut.

[0013] By adopting the above technical scheme, when a large amount of compatibilizer mixed raw materials adhere to the inner wall of the feeding barrel, the strip scraper needs to scrape off the compatibilizer mixed raw materials for multiple times. When the amount of compatibilizer mixed raw materials adhere to the inner wall of the feeding barrel gradually decreases, the strip scraper gradually approaches the inner wall of the feeding barrel under the elastic force of the spring, thereby scraping off the compatibilizer mixed raw materials adhered to the inner wall of the feeding barrel.

[0014] In a preferred example, the utility model can be further configured as follows: the limiting rolling body includes a fixed shaft and a rolling body rotatably connected to its outer edge, the two ends of the fixed shaft are respectively connected to connecting plates, the connecting plates are connected to the strip scraper, and when the rolling body is rollingly connected to the feed cylinder, the minimum distance between the strip scraper and the inner wall of the feed cylinder is 0.5 to 1 mm.

[0015] By adopting the above technical solution, when the rolling body rolls in contact with the inner wall of the feeding cylinder, a gap exists between the strip scraper and the inner wall of the feeding cylinder, thereby preventing the strip scraper from contacting the inner wall of the feeding cylinder and generating loud noise.

[0016] In a preferred example, the utility model can be further configured as follows: the air-cooled cooling mechanism includes a blower and a blowing head arranged in the inner cavity of a storage box, the blowing head includes a hollow circular tube and circular sealing plates connected to both ends thereof, the outer edge of the hollow circular tube is connected to an air inlet pipe, one end of the air inlet pipe passes through the storage box and is connected to the air outlet of the blower through a pipe.

[0017] By adopting the above technical solution, a large amount of wind is generated when the blower is working. The wind enters the inner cavity of the hollow circular tube through the air inlet pipe. The wind in the hollow circular tube is dissipated to the inside of the compatibilizer mixed raw material in all directions, thereby reducing the temperature inside the compatibilizer mixed raw material, so that the compatibilizer mixed raw material can smoothly flow into the inside of the feed barrel.

[0018] In summary, the present invention includes at least one of the following beneficial technical effects:

[0019] 1. The operation of the screw feeder drives the elastic scraper plate assembly to scrape off the compatibilizer mixed raw materials adhered to the inner wall of the feed barrel and transmit them, which reduces the probability of blockage and improves the stability of the compatibilizer mixed raw materials flowing from the storage box into the extruder.

[0020] 2. The air-cooled cooling mechanism generates a large amount of wind which is dissipated into the compatibilizer mixed raw material. The wind takes away the heat inside the compatibilizer mixed raw material, thereby reducing the viscosity of the surface of the compatibilizer mixed raw material, making it easier for the compatibilizer mixed raw material in the storage box to enter the interior of the feed barrel smoothly, thereby enhancing the stability of the extruder feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0022] Figure 1 It is a structural schematic diagram of a preferred embodiment of an extruder feeding device made of a compatibilizer according to the utility model.

[0023] Figure 2 yes Figure 1 Schematic diagram of the structure of the elastic support rod.

[0024] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle limit rolling element.

[0025] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle strip scraper.

[0026] Figure 5 yes Figure 1 Schematic diagram of the structure of the center blowing head.

[0027] In the figure: 1, material storage box; 20, air-cooled cooling mechanism; 3, material delivery cylinder; 40, screw feeder;

[0028] 50. Elastic scraper assembly; 60. Position-limiting rolling element; 7. Vertical discharge barrel;

[0029] 21. blower; 22. blowing head; 221. hollow round tube; 222. round sealing plate; 223. air inlet pipe;

[0030] 41. end plate; 42. rotating shaft; 43. motor; 44. spiral transmission blade;

[0031] 51. Strip scraper; 52. Elastic support rod; 521. L-shaped plate; 522. Round rod; 523. Spring;

[0032] 61. Fixed shaft; 62. Rolling element; 63. Connecting plate. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0034] It should be noted that these drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0035] Reference Figures 1 to 5 , which is an extruder feeding device for compatibilizer disclosed in the utility model, comprising: a storage box 1, a horizontal spiral feeding mechanism connected to the lower end of the storage box 1, and an air-cooled cooling mechanism 20 for blowing air into the storage box 1; the air-cooled cooling mechanism 20 comprises a blower 21 and a blowing head 22 arranged in the inner cavity of the storage box 1, the blowing head 22 comprises a hollow circular tube 221 and a circular sealing plate 222 connected at both ends thereof, the outer edge of the hollow circular tube 221 is connected with an air inlet pipe 223, one end of the air inlet pipe 223 passes through the storage box 1 and is connected to the air outlet of the blower 21 through a pipeline; the blower 21 generates a large amount of wind when working, and the wind enters the inner cavity of the hollow circular tube 221 through the air inlet pipe 223, and the wind in the hollow circular tube 221 is dissipated to the inside of the compatibilizer mixed raw material in the storage box 1, thereby reducing the temperature inside the compatibilizer mixed raw material, so that the compatibilizer mixed raw material can smoothly flow into the inside of the feeding barrel 3.

[0036] The horizontal screw feeding mechanism includes a feeding barrel 3 and a screw feeder 40 passing through its inner cavity. The outer edge of the discharge end of the feeding barrel 3 is sleeved with a vertical discharge barrel 7. The screw feeder 40 includes an end plate 41 and a rotating shaft 42. The end plate 41 is connected to the end of the feeding barrel 3 away from the vertical discharge barrel 7. The rotating shaft 42 is passed through the end plate 41 and is rotatably connected thereto. One end of the rotating shaft 42 is connected to a motor 43, and the other end is passed through the side wall of the vertical discharge barrel 7. The rotating shaft 42 and the vertical discharge barrel 7 are rotatably connected. The outer edge of the rotating shaft 42 is sleeved with a spiral transmission blade 44; the motor 43 drives the rotating shaft 42 to rotate when it works, and the rotating shaft 42 drives the spiral transmission blade 44 to rotate. The spiral transmission blade 44 transmits the compatibilizer mixed raw material from one end in the feeding barrel 3 to the vertical discharge barrel 7, and the compatibilizer mixed raw material in the vertical discharge barrel 7 can flow into the extruder evenly and smoothly.

[0037] The screw conveyor 40 is connected to an elastic scraper assembly 50 that can move in the radial direction. The elastic scraper assembly 50 includes a strip scraper 51 and a plurality of elastic support rods 52 arranged at intervals. One end of the elastic support rod 52 is connected to the rotating shaft 42, and the other end is connected to the strip scraper 51; the elastic support rod 52 includes an L-shaped plate 521, a round rod 522 and a spring 523 sleeved on the round rod 522. One side of the L-shaped plate 521 is connected to the strip scraper 51, and the other side is penetrated by the round rod 522. Rod 522, one end of the round rod 522 away from the L-shaped plate 521 is connected to the rotating shaft 42, and the other end of the round rod 522 is spirally connected with a nut; when a large amount of compatibilizer mixed raw materials adhere to the inner wall of the feeding barrel 3, the strip scraper 51 needs to scrape off the compatibilizer mixed raw materials in multiple times. When the amount of compatibilizer mixed raw materials adhered to the inner wall of the feeding barrel 3 gradually decreases, the strip scraper 51 gradually approaches the inner wall of the feeding barrel 3 under the elastic force of the spring 523, thereby scraping off the compatibilizer mixed raw materials adhered to the inner wall of the feeding barrel 3.

[0038] There are at least two limiting rolling bodies 60 connected to the elastic scraper plate assembly 50 at intervals, and the limiting rolling body 60 is rollingly connected to the inner wall of the feed barrel 3, suitable for preventing the elastic scraper plate assembly 50 from contacting the inner wall of the feed barrel 3; the limiting rolling body 60 includes a fixed shaft 61 and a rolling body 62 rotatably connected to its outer edge, and both ends of the fixed shaft 61 are respectively connected to connecting plates 63, and the connecting plates 63 are connected to the strip scraper 51. When the rolling body 62 is rollingly connected to the feed barrel 3, the minimum distance between the strip scraper 51 and the inner wall of the feed barrel 3 is 0.5~1mm.

[0039] The implementation principle of this embodiment is as follows: when in use, the compatibilizer raw materials are mixed and stirred and then input into the storage box 1 for storage. After the extruder is started, the screw feeder 40 is operated to work, and the compatibilizer mixed raw materials in the storage box 1 flow into the feeding barrel 3. The screw feeder 40 spirally transmits the compatibilizer mixed raw materials in the storage box 1 to the extruder evenly. In this process, the compatibilizer mixed raw materials rub against each other, and friction is generated between the compatibilizer mixed raw materials and the feeding barrel 3. The compatibilizer mixed raw materials and the screw feeder 40 rub against each other, so that the temperature of the surface of the compatibilizer mixed raw materials increases, and the compatibilizer mixed raw materials are easily adhered to the inner wall of the feeding barrel 3 to cause blockage. As the screw feeder 40 drives the elastic scraper plate assembly 50 to rotate in a circle, the elastic scraper plate assembly 50 rotates in a circle. The scraper plate assembly 50 scrapes off the compatibilizer mixed raw material adhering to the inner wall of the feed barrel 3, and the scraped mixed raw material is driven into the extruder by the screw feeder 40, which reduces the probability of the compatibilizer mixed raw material being blocked in the feed barrel 3 and improves the stability of the compatibilizer mixed raw material flowing from the storage box 1 into the extruder; because the compatibilizer raw material has more heat inside after being mixed and stirred, the compatibilizer mixed raw material is easy to adhere to form blocks. At this time, the air-cooled cooling mechanism 20 generates a large amount of wind that is dissipated into the compatibilizer mixed raw material. The wind takes away the heat inside the compatibilizer mixed raw material, thereby reducing the viscosity of the surface of the compatibilizer mixed raw material, making it easier for the compatibilizer mixed raw material in the storage box 1 to smoothly enter the interior of the feed barrel 3, thereby enhancing the stability of the extruder feeding.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An extruder feeding device made of a compatibilizer, comprising: A material storage box (1), characterized in that a horizontal screw feeding mechanism is connected to the lower end of the material storage box (1), and further comprising an air-cooled cooling mechanism (20) for blowing air into the material storage box (1); The horizontal screw feeding mechanism comprises a feeding barrel (3) and a screw feeder (40) penetrating the inner cavity thereof, the outer edge of the discharge end of the feeding barrel (3) being sleeved with a vertical discharge barrel (7), the screw feeder (40) being connected with an elastic scraper plate assembly (50) movable in a radial direction, the elastic scraper plate assembly (50) being connected with no less than two limiting rolling bodies (60) at intervals, the limiting rolling bodies (60) being rollingly connected with the inner wall of the feeding barrel (3) and being suitable for preventing the elastic scraper plate assembly (50) from contacting with the inner wall of the feeding barrel (3).

2. The extruder feeding device made of compatibilizer according to claim 1, characterized in that: The screw feeder (40) comprises an end plate (41) and a rotating shaft (42), wherein the end plate (41) is connected to one end of the feed barrel (3) away from the vertical discharge barrel (7), and the rotating shaft (42) is passed through the end plate (41) and is rotatably connected thereto, one end of the rotating shaft (42) is connected to a motor (43), and the other end is passed through the side wall of the vertical discharge barrel (7), and the outer edge of the rotating shaft (42) is sleeved with a spiral transmission blade (44).

3. The extruder feeding device made of compatibilizer according to claim 1, characterized in that: The elastic scraper plate assembly (50) comprises a strip scraper plate (51) and a plurality of elastic support rods (52) arranged at intervals, one end of the elastic support rod (52) being connected to the rotating shaft (42) and the other end being connected to the strip scraper plate (51).

4. The extruder feeding device made of compatibilizer according to claim 3, characterized in that: The elastic support rod (52) comprises an L-shaped plate (521), a round rod (522) and a spring (523) sleeved on the round rod (522); one side of the L-shaped plate (521) is connected to the strip scraper (51); the other side is penetrated by the round rod (522); one end of the round rod (522) away from the L-shaped plate (521) is connected to the rotating shaft (42); the other end of the round rod (522) is spirally connected to a nut.

5. The extruder feeding device made of compatibilizer according to claim 3, characterized in that: The limiting rolling body (60) comprises a fixed shaft (61) and a rolling body (62) rotatably connected to the outer edge thereof, the two ends of the fixed shaft (61) are respectively connected to connecting plates (63), the connecting plates (63) are connected to the strip scraper (51), and when the rolling body (62) is rollingly connected to the feeding cylinder (3), the minimum distance between the strip scraper (51) and the inner wall of the feeding cylinder (3) is 0.5 to 1 mm.

6. The extruder feeding device made of compatibilizer according to claim 1, characterized in that: The air-cooled cooling mechanism (20) comprises a blower (21) and a blowing head (22) arranged in the inner cavity of a material storage box (1); the blowing head (22) comprises a hollow circular tube (221) and circular sealing plates (222) connected to both ends thereof; an outer edge of the hollow circular tube (221) is connected to an air inlet pipe (223); one end of the air inlet pipe (223) passes through the material storage box (1) and is connected to an air outlet of the blower (21) via a pipeline.

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