Extruder feeding weighing device based on compatilizer manufacturing

Abstract

The utility model relates to the technical field of compatibilizer processing, in particular to an extruder feeding weighing device based on compatibilizer manufacturing, which comprises a storage box and a vertical pipe body, a switch valve is arranged on the vertical pipe body, a stirring box component is arranged above the storage box, and at least two weighing mechanisms are arranged on the outer side of the stirring box component at intervals; the weighing mechanism comprises a raw material containing box, a spiral conveying pipe assembly, a telescopic discharging pipe with a switch function and a weighing cylinder assembly located below the telescopic discharging pipe, an inclined guide pipe is arranged below the weighing cylinder assembly, and a plurality of inclined fixing rods are connected between the inclined guide pipe and the weighing cylinder assembly at intervals. The upper end of the telescopic discharging pipe is connected with the outer circle of the spiral conveying pipe assembly, and the output end of the spiral conveying pipe assembly is connected with a recycling pipe assembly. According to the utility model, the structure is reasonable, various raw materials are uniformly stirred after being accurately weighed, and the uniformly mixed mixture enters an extruder to be processed, so that the quality of a compatilizer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compatibilizer processing, in particular to an extruder feeding and weighing device based on 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. Therefore, 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 have undergone 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 in precise proportions before entering the extruder for processing.

[0003] With respect to the above-mentioned related technologies, the inventors found that the existing method of accurately proportioning and inputting raw materials is that a motor drives a screw feeder to rotate to transmit the raw materials of the compatibilizer, and the feeding amount is controlled by controlling the speed of the motor. In the actual feeding process, the power of the motor is constant, but the raw materials of the compatibilizer are in various granular forms, and different particles have differences in volume, size, hardness, etc., that is, the load of the motor-driven screw feeder is prone to deviation, resulting in a certain difference in the speed of the motor, reducing the feeding accuracy of the screw feeder in transmitting the raw materials of the compatibilizer, that is, reducing the ratio accuracy of the various raw materials of the compatibilizer and the quality of the product. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide an extruder feeding and weighing device based on making a compatibilizer, which can evenly stir a variety of raw materials after accurate weighing, and the evenly mixed mixture enters the extruder for processing, thereby improving the quality of the compatibilizer.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an extruder feeding weighing device based on making a compatibilizer, comprising: a storage box and a vertical tube body connected to the lower end thereof, the vertical tube body is provided with a switch valve, a stirring box assembly is provided above the storage box, and no less than two weighing mechanisms are provided at intervals on the outer side of the stirring box assembly;

[0006] The weighing mechanism includes a raw material placement box, a spiral feed pipe assembly, a telescopic discharge pipe with a switch function, and a weighing cylinder assembly located below the telescopic discharge pipe. An inclined guide pipe connected to the mixing box assembly is provided below the weighing cylinder assembly. A plurality of inclined fixing rods are connected to the inclined guide pipe and the weighing cylinder assembly at intervals. The upper end of the telescopic discharge pipe is connected to the outer circle of the spiral feed pipe assembly, and the inclined lower end of the spiral feed pipe assembly extends into the inner cavity of the raw material placement box. The output end of the spiral feed pipe assembly is connected to a recovery pipe assembly, and the inclined lower end of the recovery pipe assembly extends into the inner cavity of the raw material placement box.

[0007] By adopting the above technical scheme, when in use, a single raw material is loaded into the raw material placement box, and the spiral feed pipe assembly works to output the raw material from the raw material placement box. During the movement of the raw material in the spiral feed pipe assembly, the raw material flows into the inner cavity of the weighing cylinder assembly through the telescopic discharge pipe. When the raw material in the weighing cylinder assembly reaches a certain weight, the telescopic discharge pipe is operated to be closed, thereby preventing the flow of the raw material in the telescopic discharge pipe. At the same time, the spiral feed pipe assembly stops working, and the raw material in the weighing cylinder assembly flows into the mixing box assembly through the inclined guide pipe. Each weighing mechanism can weigh different types of raw materials and then transport them to the mixing box assembly. The mixing box assembly mixes and stirs multiple raw materials evenly, and the mixed raw materials in the mixing box assembly flow into the storage box for storage. The mixed raw materials in the storage box can flow continuously into the extruder for processing, thereby improving the raw material ratio accuracy of the processing compatibilizer, that is, improving the quality of the compatibilizer. When the telescopic discharge pipe is in a closed state, the excess raw materials transmitted by the spiral feed pipe assembly flow into the inner cavity of the recovery pipe assembly, and the raw materials in the recovery pipe assembly slide into the storage box for reuse.

[0008] In a preferred example, the utility model can be further configured as follows: the mixing box assembly includes a mixing box body, the upper end opening of the mixing box body is connected to a cover plate, an agitator is passed through the cover plate, the lower end of the mixing box body is connected to a discharge pipe, a rotary discharge valve is provided on the discharge pipe, the agitator includes a mixing shaft, the upper end of the mixing shaft is connected to a mixing motor, and the lower end outer circle is connected to a plurality of mixing plates at intervals.

[0009] By adopting the above technical solution, the stirring motor drives the stirring shaft to rotate, and the stirring shaft drives the stirring plate to rotate. The stirring plate stirs the raw materials of various compatibilizers, so that the raw materials of various compatibilizers are evenly mixed.

[0010] In a preferred example, the utility model can be further configured as follows: the spiral feed pipe assembly includes a feed pipe body and a spiral feed blade member penetrating its inner cavity, the spiral feed blade member includes a feed shaft, a hollow support seat and a mounting seat rotatably connected to both ends thereof, the hollow support seat is connected to the inner wall of the oblique lower end of the feed pipe body, the mounting seat is connected to the outer surface of the feed pipe body, a rotating motor for driving the feed shaft to rotate is installed on the mounting seat, and the outer circle of the feed shaft is sleeved with spiral blades.

[0011] By adopting the above technical solution, the rotating motor drives the feeding shaft to rotate, the feeding shaft drives the spiral blades to rotate, and the rotation of the spiral blades drives the raw materials entering the feeding pipe body to move, thereby achieving the purpose of transmission.

[0012] In a preferred example, the utility model can be further configured as follows: the telescopic discharge pipe includes a fixed pipe and a movable pipe arranged therebelow, a glass corrugated pipe is connected between the fixed pipe and the movable pipe, a rotary unloading valve 2 is connected to the lower end of the movable pipe, and also includes a telescopic rod member arranged on the front and rear sides of the glass corrugated pipe, the telescopic rod member includes an electric push rod, an upper connecting plate and a lower connecting plate connected at both ends thereof, the upper connecting plate is connected to the fixed pipe, and the lower connecting plate is connected to the movable pipe.

[0013] By adopting the above technical solution and using the second rotary unloading valve, the lower end opening of the moving tube can be blocked and opened, and the electric push rod is operated to drive the moving tube to move downward an appropriate distance, so that the lower end of the second rotary unloading valve is close to the upper surface of the raw materials after weighing in the weighing cylinder assembly. When the raw materials weighed in the weighing cylinder assembly reach a certain weight, the second rotary unloading valve is immediately closed, and only a small amount of raw materials in the air falls into the inner cavity of the weighing cylinder assembly, thereby improving the weighing accuracy.

[0014] In a preferred example, the utility model can be further configured as follows: the weighing cylinder assembly includes an annular seat and a conical cylinder arranged in its inner cavity, the lower end of the conical cylinder is connected to a discharge pipe, the lower end of the discharge pipe is connected to a rotary unloading valve three, the inner wall annular array of the annular seat is connected to a plurality of horizontal plates, the horizontal plates are respectively connected to weight sensors, the weight sensors are connected to the outer surface of the conical cylinder, and the annular seat is connected to the inclined upper end of the inclined fixing rod.

[0015] By adopting the above technical solution, when the raw materials of the compatibilizer fall into the inner cavity of the conical cylinder, the weight sensor measures the raw materials of the compatibilizer in real time. When the weight of the raw materials in the conical cylinder reaches a certain value, the rotary unloading valve 2 starts to close the movable tube. Next, the rotary unloading valve 3 is operated to be in an open state. The raw materials of the compatibilizer in the conical cylinder flow into the inclined guide tube through the discharge pipe, and the raw materials in the inclined guide tube then flow into the inner cavity of the mixing box assembly.

[0016] In a preferred example, the utility model can be further configured as follows: the recovery pipe assembly includes a transition cylinder and a reflux pipe connected to the lower end opening thereof, and the transition cylinder is connected to the output end of the spiral feed pipe assembly.

[0017] By adopting the above technical solution, the excess compatibilizer raw materials transmitted by the spiral feeding pipe assembly flow into the transition cylinder, and the compatibilizer raw materials in the transition cylinder flow into the raw material placement box through the reflux pipe, so as to be reused.

[0018] In a preferred example, the utility model can be further configured as follows: the spiral feed pipe assembly is respectively connected to a support frame, a plurality of upper connecting rods are spaced apart between the support frame and the mixing box assembly, and a plurality of lower connecting rods are spaced apart between the support frame and the storage box.

[0019] By adopting the above technical solution and using a support frame, it is convenient to support and fix the spiral feed pipe assembly, and by using an upper connecting rod, the mixing box assembly is indirectly fixedly connected to the support frame, and by using a lower connecting rod, the storage box is indirectly fixedly connected to the support frame.

[0020] In a preferred example, the utility model can be further configured as follows: a controller is provided on the front side of the raw material placement box, and the controller is electrically connected to the stirring motor, the first rotary discharge valve, the rotary motor, the second rotary discharge valve, the electric push rod, the third rotary discharge valve and the weight sensor respectively.

[0021] By adopting the above technical solution, the weight sensor is set through the controller. When the weight of the raw materials flowing into the conical barrel reaches the set parameters, the weight sensor sends a stop signal to the controller, and the controller sends signals to the rotary motor and the rotary discharge valve 2 respectively. The rotary motor stops working after receiving the signal, that is, the spiral feed pipe assembly stops conveying, and the rotary discharge valve 2 is in a closed state after receiving the signal. Next, the controller sends a signal to the rotary discharge valve 3, so that the rotary discharge valve 3 is in an open state, and the compatibilizer raw materials in the conical barrel flow into the mixing box assembly through the inclined guide pipe. When the inner cavity of the mixing box assembly is filled with a variety of weighed compatibilizer raw materials, the controller sends a start signal to the mixing motor, and the mixing motor drives the mixing shaft to rotate, and the mixing shaft drives the mixing plate to rotate, and the mixing plate mixes the raw materials of the various compatibilizers, so that the various compatibilizer raw materials are evenly mixed. Finally, the operation controller sends an opening signal to the rotary discharge valve 1, and the rotary discharge valve 1 is in an open state. The mixed raw materials in the inner cavity of the mixing box assembly flow into the storage box through the discharge pipe, and the mixed raw materials in the storage box flow into the extruder through the vertical pipe body for processing.

[0022] In summary, the present invention includes at least one of the following beneficial technical effects:

[0023] The spiral feed pipe assembly transfers the compatibilizer raw materials placed in the raw material box, and the compatibilizer raw materials flow to the inner cavity of the weighing cylinder assembly through the telescopic discharge pipe for accurate weighing. Since multiple weighing mechanisms can accurately weigh different types of compatibilizer raw materials, the accurately weighed compatibilizer raw materials are input into the inner cavity of the mixing box assembly at the same time. The mixing box assembly evenly stirs the various compatibilizer raw materials, and the stirred compatibilizer raw materials flow into the inner cavity of the storage box. After opening the switch valve, the compatibilizer raw materials in the storage box can continuously flow into the extruder for processing, thereby improving the quality of the compatibilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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:

[0025] Figure 1 The utility model is a structural schematic diagram of a preferred embodiment of an extruder feeding and weighing device for making a compatibilizer.

[0026] Figure 2 yes Figure 1 Schematic diagram of the structure connecting the middle ring seat, horizontal plate and weight sensor.

[0027] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle support frame.

[0028] Figure 4 yes Figure 1 Schematic diagram of the structure of the spiral feed blade.

[0029] Figure 5 yes Figure 1 Schematic diagram of the structure of the agitator.

[0030] Figure 6 yes Figure 1 Schematic diagram of the structure of the telescopic discharge tube.

[0031] In the figure: 1, material storage box; 20, mixing box assembly; 3, raw material placement box; 40, spiral feed pipe assembly; 50, telescopic discharge pipe; 60, weighing cylinder assembly; 70, recovery pipe assembly; 11, vertical pipe body; 12, switch valve; 13, tilt guide pipe; 14, tilt fixing rod; 15, support frame; 16, upper connecting rod; 17, lower connecting rod; 18, controller;

[0032] 21. Mixing box body; 22. Cover plate; 23. Agitator; 24. Discharge pipe; 25. Rotary discharge valve 1; 231. Agitator shaft; 232. Agitator motor; 233. Agitator plate;

[0033] 41. feeding pipe body; 42. spiral feeding blade member; 421. feeding shaft; 422. hollow support seat;

[0034] 423, mounting seat; 424, rotating motor; 425, spiral blade;

[0035] 51. Fixed pipe; 52. Moving pipe; 53. Glass corrugated pipe; 54. Rotating discharge valve 2; 55. Telescopic rod; 551. Electric push rod; 552. Upper connecting plate; 553. Lower connecting plate;

[0036] 61. annular seat; 62. conical cylinder; 63. discharge pipe; 64. rotary discharge valve 3; 65. horizontal plate;

[0037] 66. Weight sensor;

[0038] 71. Transition cylinder; 72. Return pipe. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] Reference Figures 1 to 6 , which is an extruder feeding and weighing device based on the production of a compatibilizer disclosed in the utility model, comprising: a storage box 1 and a vertical tube body 11 connected to the lower end thereof, a switch valve 12 is provided on the vertical tube body 11, a stirring box assembly 20 is provided above the storage box 1, the stirring box assembly 20 comprises a stirring box body 21, the upper end opening of the stirring box body 21 is connected to a cover plate 22, a stirrer 23 is penetrated on the cover plate 22, a discharge pipe 24 is connected to the lower end of the stirring box body 21, a rotary discharge valve 25 is provided on the discharge pipe 24, the stirrer 23 comprises a stirring shaft 231, a stirring motor 232 is connected to the upper end of the stirring shaft 231, and a plurality of stirring plates 233 are connected to the outer circle of the lower end; at least two weighing mechanisms are provided at intervals on the outer side of the stirring box assembly 20.

[0042] The weighing mechanism includes a raw material placement box 3, a spiral feeding pipe assembly 40, a telescopic discharge pipe 50 with a switch function, and a weighing cylinder assembly 60 located below the telescopic discharge pipe 50. The spiral feeding pipe assembly 40 includes a feeding pipe body 41 and a spiral feeding blade member 42 penetrating its inner cavity. The spiral feeding blade member 42 includes a feeding shaft 421, a hollow support seat 422 and a mounting seat 423 rotatably connected at both ends thereof. The hollow support seat 422 is connected to the inner wall of the oblique lower end of the feeding pipe body 41, and the mounting seat 423 is connected to the outer surface of the feeding pipe body 41. A rotating motor 424 for driving the feeding shaft 421 to rotate is installed on the mounting seat 423, and the outer circle of the feeding shaft 421 is sleeved with a spiral blade 425; the rotating motor 424 drives the feeding shaft 421 to rotate when it works, and the feeding shaft 421 drives the spiral blade 425 to rotate, and the spiral blade 425 rotates to drive the raw materials entering the feeding pipe body 41 to move, so as to achieve the purpose of transmission;

[0043] The telescopic discharge pipe 50 includes a fixed pipe 51 and a movable pipe 52 arranged below the fixed pipe 51, a glass corrugated pipe 53 is connected between the fixed pipe 51 and the movable pipe 52, and a rotary discharge valve 54 is connected to the lower end of the movable pipe 52. The telescopic discharge pipe 50 also includes a telescopic rod 55 arranged on the front and rear sides of the glass corrugated pipe 53. The telescopic rod 55 includes an electric push rod 551, an upper connecting plate 552 and a lower connecting plate 553 connected at both ends thereof. The upper connecting plate 552 is connected to the fixed pipe 51, and the lower connecting plate 553 is connected to the movable pipe 52; through the rotary The use of the rotary unloading valve 54 can seal and open the lower end opening of the moving tube 52. The electric push rod 551 is operated to drive the moving tube 52 to move downward an appropriate distance, so that the lower end of the rotary unloading valve 54 is close to the upper surface of the raw materials weighed in the weighing cylinder assembly 60. When the raw materials weighed in the weighing cylinder assembly 60 reach a certain weight, the rotary unloading valve 54 is immediately closed, and only a small amount of raw materials in the air falls into the inner cavity of the weighing cylinder assembly 60, thereby improving the weighing accuracy.

[0044] An inclined guide tube 13 connected to the mixing box assembly 20 is provided below the weighing cylinder assembly 60, and a plurality of inclined fixing rods 14 are connected between the inclined guide tube 13 and the weighing cylinder assembly 60 at intervals. The upper end of the telescopic discharge pipe 50 is connected to the outer circle of the spiral feed pipe assembly 40, and the inclined lower end of the spiral feed pipe assembly 40 extends into the inner cavity of the raw material placement box 3. The weighing cylinder assembly 60 includes an annular seat 61 and a conical cylinder 62 arranged in its inner cavity, and the lower end of the conical cylinder 62 is connected to a discharge pipe 63, and the lower end of the discharge pipe 63 is connected to a rotary unloading valve 64. The inner wall of the annular seat 61 is connected to a plurality of horizontal plates 65 in an annular array, and the horizontal plates 65 are respectively connected There is a weight sensor 66, which is connected to the outer surface of the conical cylinder 62, and the annular seat 61 is connected to the inclined upper end of the inclined fixed rod 14; when the raw materials of the compatibilizer fall into the inner cavity of the conical cylinder 62, the weight sensor 66 measures the raw materials of the compatibilizer in real time, and when the weight of the raw materials in the conical cylinder 62 reaches a certain value, the rotary unloading valve 2 54 starts to close the moving tube 52, and then the rotary unloading valve 3 64 is operated to be in an open state, and the raw materials of the compatibilizer in the conical cylinder 62 flow into the inclined guide tube 13 through the discharge pipe 63, and the raw materials in the inclined guide tube 13 flow into the inner cavity of the mixing box assembly 20.

[0045] The output end of the spiral feed pipe assembly 40 is connected to the recovery pipe assembly 70, and the oblique lower end of the recovery pipe assembly 70 extends into the inner cavity of the raw material placement box 3; the recovery pipe assembly 70 includes a transition cylinder 71 and a reflux pipe 72 connected to its lower end opening, and the transition cylinder 71 is connected to the output end of the spiral feed pipe assembly 40; the excess compatibilizer raw material transmitted by the spiral feed pipe assembly 40 flows into the transition cylinder 71, and the compatibilizer raw material in the transition cylinder 71 then flows into the raw material placement box 3 through the reflux pipe 72, so as to be reused.

[0046] The spiral feed pipe assembly 40 is respectively connected with a support frame 15 , a plurality of upper connecting rods 16 are connected between the support frame 15 and the mixing box assembly 20 , and a plurality of lower connecting rods 17 are connected between the support frame 15 and the material storage box 1 .

[0047] A controller 18 is provided on the front of the raw material placement box 3, and the controller 18 is electrically connected to the stirring motor 232, the rotary discharge valve 1 25, the rotary motor 424, the rotary discharge valve 2 54, the electric push rod 551, the rotary discharge valve 3 64 and the weight sensor 66 respectively; the weight sensor 66 is set by the controller 18, and when the weight of the raw materials flowing into the conical cylinder 62 reaches the set parameters, the weight sensor 66 sends a stop signal to the controller 18, and the controller 18 sends signals to the rotary motor 424 and the rotary discharge valve 2 54 respectively. The rotary motor 424 stops working after receiving the signal, that is, the spiral feed pipe assembly 40 stops conveying the compatibilizer raw materials, and the rotary discharge valve 2 54 is in a closed state after receiving the signal. Next, the controller 18 sends a signal to the rotary discharge valve 3 64 so that the rotary discharge valve The third valve 64 is in an open state, and the compatibilizer raw materials in the conical cylinder 62 flow into the inner cavity of the mixing box assembly 20 through the inclined guide tube 13. When the inner cavity of the mixing box assembly 20 is filled with a variety of accurately weighed compatibilizer raw materials, the controller 18 sends a start signal to the stirring motor 232, and the stirring motor 232 drives the stirring shaft 231 to rotate, and the stirring shaft 231 drives the stirring plate 233 to rotate, and the stirring plate 233 stirs the raw materials of the various compatibilizers so that the various compatibilizer raw materials are evenly mixed. Finally, the operation controller 18 sends an opening signal to the rotary unloading valve 25, and the rotary unloading valve 25 is in an open state. The mixed raw materials in the inner cavity of the mixing box assembly 20 flow into the storage box 1 through the unloading pipe 24, and the mixed raw materials in the storage box 1 then flow into the extruder through the vertical tube body 11 for processing.

[0048] The implementation principle of this embodiment is as follows: when in use, a single raw material is loaded into the raw material placement box 3, and the spiral feed pipe assembly 40 works to output the raw material from the raw material placement box 3. During the movement of the raw material in the spiral feed pipe assembly 40, the raw material flows into the inner cavity of the weighing cylinder assembly 60 through the telescopic discharge pipe 50. When the raw material in the weighing cylinder assembly 60 reaches a certain weight, the telescopic discharge pipe 50 is operated to close, thereby preventing the flow of the compatibilizer raw material in the telescopic discharge pipe 50. At the same time, the spiral feed pipe assembly 40 stops working, and the raw material in the weighing cylinder assembly 60 flows into the mixing box assembly 20 through the inclined guide pipe 13. Each weighing cylinder assembly 60 is The mechanism can weigh different types of raw materials and convey them to the mixing box assembly 20, and the mixing box assembly 20 will evenly mix and stir the various raw materials. The mixed raw materials in the mixing box assembly 20 will then flow into the storage box 1 for storage. After opening the switch valve 12, the mixed raw materials in the storage box 1 can continuously flow into the extruder for processing, thereby improving the raw material ratio accuracy of the processing compatibilizer, that is, improving the quality of the compatibilizer. When the telescopic discharge pipe 50 is in a closed state, the excess raw materials transmitted by the spiral feed pipe assembly 40 flow into the inner cavity of the recovery pipe assembly 70, and the raw materials in the recovery pipe assembly 70 slide into the storage box 1 and are reused.

[0049] 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 and weighing device for making a compatibilizer, comprising: A material storage box (1) and a vertical tube body (11) connected to the lower end thereof, wherein the vertical tube body (11) is provided with a switch valve (12), characterized in that a stirring box assembly (20) is provided above the material storage box (1), and no less than two weighing mechanisms are provided at intervals on the outer side of the stirring box assembly (20); The weighing mechanism comprises a raw material placement box (3), a spiral feed pipe assembly (40), a telescopic discharge pipe (50) with a switch function, and a weighing cylinder assembly (60) located below the telescopic discharge pipe (50); an inclined guide pipe (13) connected to the stirring box assembly (20) is provided below the weighing cylinder assembly (60); a plurality of inclined fixing rods (14) are connected between the inclined guide pipe (13) and the weighing cylinder assembly (60) at intervals; the upper end of the telescopic discharge pipe (50) is connected to the outer circle of the spiral feed pipe assembly (40); the oblique lower end of the spiral feed pipe assembly (40) extends into the inner cavity of the raw material placement box (3); the output end of the spiral feed pipe assembly (40) is connected to a recovery pipe assembly (70); the oblique lower end of the recovery pipe assembly (70) extends into the inner cavity of the raw material placement box (3).

2. The extruder feeding and weighing device for making a compatibilizer according to claim 1, characterized in that: The mixing box assembly (20) comprises a mixing box body (21), the upper end opening of the mixing box body (21) is connected to a cover plate (22), an agitator (23) is passed through the cover plate (22), the lower end of the mixing box body (21) is connected to a discharge pipe (24), a rotary discharge valve (25) is provided on the discharge pipe (24), the agitator (23) comprises a mixing shaft (231), the upper end of the mixing shaft (231) is connected to a mixing motor (232), and the lower end is connected to a plurality of mixing plates (233) at intervals on the outer circle.

3. The extruder feeding and weighing device based on making a compatibilizer according to claim 2, characterized in that: The spiral feed pipe assembly (40) comprises a feed pipe body (41) and a spiral feed blade member (42) penetrating the inner cavity of the feed pipe body; the spiral feed blade member (42) comprises a feed shaft (421), a hollow support seat (422) rotatably connected to both ends thereof, and a mounting seat (423); the hollow support seat (422) is connected to the inner wall of the oblique lower end of the feed pipe body (41); the mounting seat (423) is connected to the outer surface of the feed pipe body (41); a rotating motor (424) for driving the feed shaft (421) to rotate is mounted on the mounting seat (423); and the outer circle of the feed shaft (421) is sleeved with a spiral blade (425).

4. The extruder feeding and weighing device for making a compatibilizer according to claim 3, characterized in that: The telescopic discharge pipe (50) comprises a fixed pipe (51) and a movable pipe (52) arranged below the fixed pipe (51), a glass corrugated pipe (53) is connected between the fixed pipe (51) and the movable pipe (52), the lower end of the movable pipe (52) is connected to a second rotary discharge valve (54), and further comprises a telescopic rod (55) arranged at the front and rear sides of the glass corrugated pipe (53), the telescopic rod (55) comprises an electric push rod (551), an upper connecting plate (552) and a lower connecting plate (553) connected at both ends thereof, the upper connecting plate (552) is connected to the fixed pipe (51), and the lower connecting plate (553) is connected to the movable pipe (52).

5. The extruder feeding and weighing device for making a compatibilizer according to claim 4, characterized in that: The weighing cylinder assembly (60) includes an annular seat (61) and a conical cylinder (62) arranged in its inner cavity, the lower end of the conical cylinder (62) is connected to a discharge pipe (63), the lower end of the discharge pipe (63) is connected to a rotary discharge valve (64), the inner wall of the annular seat (61) is connected to a plurality of horizontal plates (65) in an annular array, and the horizontal plates (65) are respectively connected to weight sensors (66), the weight sensors (66) are connected to the outer surface of the conical cylinder (62), and the annular seat (61) is connected to the inclined upper end of the inclined fixing rod (14).

6. The extruder feeding and weighing device for making a compatibilizer according to claim 1, characterized in that: The recovery pipe assembly (70) comprises a transition cylinder (71) and a return pipe (72) connected to the opening at the lower end thereof, and the transition cylinder (71) is connected to the output end of the spiral feed pipe assembly (40).

7. The extruder feeding and weighing device for making a compatibilizer according to claim 1, characterized in that: The spiral feed pipe assembly (40) is respectively connected to a support frame (15), a plurality of upper connecting rods (16) are spaced apart between the support frame (15) and the mixing box assembly (20), and a plurality of lower connecting rods (17) are spaced apart between the support frame (15) and the material storage box (1).

8. The extruder feeding and weighing device for making a compatibilizer according to claim 5, characterized in that: A controller (18) is provided on the front side of the raw material placement box (3), and the controller (18) is electrically connected to the stirring motor (232), the rotary discharge valve 1 (25), the rotary motor (424), the rotary discharge valve 2 (54), the electric push rod (551), the rotary discharge valve 3 (64) and the weight sensor (66).

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