Modified plastic production blending stirrer

Abstract

The utility model provides a modified plastic production blending stirrer which comprises a working table, a mixing shell is fixed on the working table, and a driving assembly is arranged at the top of the mixing shell; the feeding hopper is arranged over the mixing shell, the bottom of the feeding hopper is connected with a material conveying pipe, and the material conveying pipe penetrates through the side wall of the top of the mixing shell and extends to an inner cavity of the mixing shell; the screening shell is connected to the bottom of the conveying pipe, a screening plate is fixed to the bottom of the screening shell and seals the bottom of the screening shell, the aperture of screening holes of the screening plate is gradually increased from the center to the edge, and the screening plate is of a circular truncated cone structure. Materials with different particle sizes are screened out through the screening plate, the materials with the different particle sizes screened out through the screening plate are placed through the classified storage part, the materials with the particle sizes at the same level are stirred and mixed through the stirring part, and manufacturing of modified plastic is facilitated.

Description

Technical Field

[0001] The utility model relates to a blending mixer for producing modified plastics. Background Art

[0002] Modified plastics refer to plastic materials that have their physical, chemical or mechanical properties changed by adding specific chemicals or fillers to the plastics. This modification can enhance the plastics' strength, heat resistance, corrosion resistance, weather resistance, flame retardancy and other properties, or give them specific electrical, thermal and optical properties. Modified plastics are commonly used in a variety of fields, including construction, the automotive industry, electronic products, packaging materials, etc.

[0003] In the production of modified plastics, different types of plastic particles, additives or fillers are usually mixed together. However, materials with different particle sizes and shapes may affect the uniformity and stability of the mixing. Therefore, there is an urgent need for a blending mixer that can screen and mix particles of the same size after screening.

[0004] Therefore, in order to solve the above problems, a blending mixer for producing modified plastics is provided. Utility Model Content

[0005] The utility model provides a blending mixer for producing modified plastics in order to solve the problem that materials with different particle sizes and shapes may affect the uniformity and stability of mixing.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a modified plastic production blending mixer, comprising a workbench, a mixing shell is fixed on the workbench, and a driving component is arranged on the top of the mixing shell;

[0008] A feed hopper, which is arranged just above the mixing shell, and a feed pipe is connected to the bottom of the feed hopper, and the feed pipe penetrates the top side wall of the mixing shell and extends to the inner cavity of the mixing shell;

[0009] A screening shell, the screening shell is connected to the bottom of the material conveying pipe, a sub-screen plate is fixed to the bottom of the screening shell, the sub-screen plate closes the bottom of the screening shell, the sieve hole diameter of the sub-screen plate gradually increases from the center to the edge, and the sub-screen plate also has a truncated cone structure;

[0010] The classification stirring component is located at the bottom of the screening plate, and the classification stirring component includes a classification storage part and a stirring part. The driving shaft on the driving component is connected to the stirring part.

[0011] In the present technical solution, the driving assembly includes a driving motor, which is fixed in the inner cavity of a motor housing, which is fixed on a mounting plate, which is fixed on a workbench, and the output end of the driving motor is connected to a driving shaft, which extends into the inner cavity of a sorting shell, and a protective tube is fixed on the surface of the driving shaft, which is located in the inner cavity of a feed hopper and a conveying pipe, and the protective tube passes through the screening plate.

[0012] Furthermore, a scraper is fixed inside the surface of the protection tube, the bottom of the scraper overlaps the surface of the sub-screen plate, and the scraper is arranged obliquely.

[0013] In the present technical solution, the classification storage section includes a plurality of sorting shells whose diameters vary gradually and are nested with each other. The sorting shells are tubular structures, the sorting shells located at the center have the smallest diameter, and the sorting shells located on the outside have the largest diameter. The sorting shells are all concentrically arranged, and the central axis of the sorting shells coincides with the central axis of the driving shaft.

[0014] In the technical solution, the side walls of two adjacent separation shells together constitute an outer mixing chamber with a ring-shaped cross section, and the inner chamber of the separation shell located at the center alone constitutes an inner mixing chamber;

[0015] The length of the inner separation shell is shorter than that of the outer separation shell, the top of the separation shell is connected to the bottom side wall of the separation screen plate, and the stirring part comprises a mixing rod.

[0016] The mixing rod is located inside the outer mixing chamber, and a plurality of stirring rods distributed in a horizontal direction are fixed on the surface of the mixing rod.

[0017] In the technical solution, a closing plate is fixed at the bottom of the sorting shell, and the closing plate closes the bottom of the outer mixing chamber or the inner mixing chamber. The closing plate at the bottom of the outer mixing chamber is an annular structure, and the closing plate at the bottom of the inner mixing chamber is a circular structure. A material discharge shell having the same geometric shape as the closing plate at the bottom of the outer mixing chamber is fixed to the bottom side wall.

[0018] The transmission shell is a disc-shaped structure fixed on the inner ring side wall of the unloading shell. A transmission rod is provided inside the transmission shell. The transmission rod is fixed on the driving shaft. The driving shaft runs through all the transmission shells. The end of the transmission rod is fixed to the bottom of the corresponding mixing rod.

[0019] In the technical solution, a discharge pipe with a valve is fixed to the bottom of the discharge shell.

[0020] In the technical solution, a stirring blade is fixed on the surface of the driving shaft located in the inner mixing chamber.

[0021] In the technical solution, a plurality of auxiliary stirring components are also included. The auxiliary stirring components are arranged inside the external mixing chamber and are cooperatively connected with the stirring rods inside the external mixing chamber.

[0022] The auxiliary stirring assembly includes a connecting block, which is fixed on the side wall of the separation shell that surrounds the outer mixing chamber;

[0023] The self-rotating shaft is arranged on the connecting block and is rotatably connected to the connecting block. A plurality of stirring plates distributed in a ring array are fixed on the end of the self-rotating shaft, and the stirring plates can overlap with the stirring rod.

[0024] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0025] The positive and progressive effects of the utility model are:

[0026] Materials of different particle sizes are screened out by the sieve plate, and the classified storage part is used to place the materials of different particle sizes screened out by the sieve plate. The stirring part is used to stir and mix the materials of the same level of particle size, so as to facilitate the production of modified plastics. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the exterior of the utility model;

[0028] Figure 2 It is a schematic diagram of the internal structure of the utility model as a whole;

[0029] Figure 3 This is a schematic diagram of the internal structure of the utility model with an auxiliary stirring component;

[0030] Figure 4 It is a structural schematic diagram of the unloading shell and the transmission shell of the utility model;

[0031] Figure 5 It is a schematic diagram of the half-section structure of the sorting shell of the utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the protective tube and scraper of the utility model;

[0033] Figure 7 For this utility model Figure 3 Schematic diagram of the local enlarged structure at A.

[0034] Description of Reference Numerals

[0035] 1. Workbench; 11. Mounting plate;

[0036] 2. driving assembly; 21. driving motor; 22. motor housing; 23. driving shaft; 231. transmission rod; 24. protection tube; 241. scraper;

[0037] 3. Mixed shell;

[0038] 4. Feed hopper; 41. Feed pipe;

[0039] 5. Screening shells;

[0040] 6. Sorting shell; 61. External mixing chamber; 62. Internal mixing chamber; 63. Closing plate; 64. Unloading shell; 65. Transmission shell; 66. Scraping plate; 67. Mixing rod; 671. Stirring rod; 68. Discharging pipe;

[0041] 7. Auxiliary stirring assembly; 71. Connecting block; 72. Rotating shaft; 73. Stirring plate;

[0042] 8. Screening plate. DETAILED DESCRIPTION

[0043] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0044] like Figure 1 and Figure 2 As shown, a blending mixer for producing modified plastics comprises a workbench 1, a mixing shell 3 is fixed on the workbench 1, and a driving assembly 2 is arranged on the top of the mixing shell 3;

[0045] A feed hopper 4, which is arranged just above the mixing shell 3, and a feed pipe 41 is connected to the bottom of the feed hopper 4, and the feed pipe 41 passes through the top side wall of the mixing shell 3 and extends to the inner cavity of the mixing shell 3;

[0046] A screening shell 5, wherein the screening shell 5 is connected to the bottom of the feed pipe 41, and a sub-screen plate 8 is fixed to the bottom of the screening shell 5, and the sub-screen plate 8 closes the bottom of the screening shell 5, and the sieve hole diameter of the sub-screen plate 8 gradually increases from the center to the edge, and the sub-screen plate 8 also has a truncated cone structure;

[0047] The materials to be mixed are put into the feed hopper 4 , and the materials enter the screening shell 5 through the conveying pipe 41 , and are screened by the screening plate 8 at the bottom of the screening shell 5 .

[0048] The classification stirring component is located at the bottom of the screening plate 8, and the classification stirring component includes a classification storage part and a stirring part. The driving shaft 23 on the driving component 2 is connected to the stirring part.

[0049] Materials of different particle sizes are screened out by the sub-screening plate 8, and the materials of different particle sizes screened out by the sub-screening plate 8 are placed in the classification storage part, and the materials of the same level of particle size are stirred and mixed in the stirring part, so as to facilitate the production of modified plastics.

[0050] The same level means that the difference in particle size is within a certain range. This difference in particle size will not affect the uniformity and stability of mixing. The value of the difference is based on the material properties and chemical properties of the actual material, which will not be repeated in this application.

[0051] Embodiment 1

[0052] As one of the embodiments of this technical solution, Figure 2 As shown, the driving assembly 2 includes a driving motor 21, and the driving motor 21 is fixed in the inner cavity of a motor housing 22, and the motor housing 22 is fixed on a mounting plate 11, and the mounting plate 11 is fixed on a workbench 1. The output end of the driving motor 21 is connected to a driving shaft 23, and the driving motor 21 drives the driving shaft 23 to rotate. The driving shaft 23 extends into the inner cavity of the sorting shell 6, and a protective tube 24 is fixed on the surface of the driving shaft 23, and the protective tube 24 is located in the inner cavity of the feed hopper 4 and the delivery pipe 41, and the protective tube 24 passes through the screening plate 8.

[0053] Furthermore, a scraper 241 is fixed inside the surface of the protection tube 24, the bottom of the scraper 241 overlaps the surface of the sub-screen plate 8, and the scraper 241 is inclined, and the angle between the scraper 241 and the horizontal plane is between 15° and 30°.

[0054] The driving shaft 23 drives the scraper 241 to move on the sub-screen plate 8 during the rotation. The inclined scraper 241 can push the material falling on the sub-screen plate 8 upward to avoid inaccurate screening due to excessive material.

[0055] Embodiment 2

[0056] As one of the embodiments of this technical solution, Figure 2 and Figure 5 As shown, the classification storage section includes a plurality of sorting shells 6 whose diameters change in a gradient and are nested with each other, and the gradient change is increasing or decreasing. The sorting shells 6 are tubular structures, the sorting shell 6 located at the center has the smallest diameter, and the sorting shell 6 located on the outside has the largest diameter, and all the sorting shells 6 are concentrically arranged, and the central axis of the sorting shell 6 coincides with the central axis of the drive shaft 23.

[0057] The side walls of two adjacent separation shells 6 together form an outer mixing chamber 61 with a ring-shaped cross section, and the inner chamber of the separation shell 6 located at the center alone forms an inner mixing chamber 62. Figure 5 As shown;

[0058] Materials with larger particles enter the outer mixing chamber 61 closer to the outside, and materials with smallest particles enter the inner mixing chamber 62 .

[0059] Furthermore, the length of the inner sorting shell 6 is shorter than the length of the outer sorting shell 6; the bottoms of the two outermost sorting shells 6 may preferably be on the same plane, such as Figure 4 As shown, it is convenient to install the closing plate 63, and then the diameter of the sorting shell 6 located inside it decreases gradually, which is convenient for the transmission shell 65. The top of the sorting shell 6 is connected to the bottom side wall of the screening plate 8, and the stirring part includes a mixing rod 67.

[0060] Furthermore, the mixing rod 67 is located inside the outer mixing chamber 61 , and a plurality of stirring rods 671 distributed in a horizontal direction are fixed on the surface of the mixing rod 67 .

[0061] Specifically, a closing plate 63 is fixed to the bottom of the sorting shell 6, and the closing plate 63 closes the bottom of the outer mixing chamber 61 or the inner mixing chamber 62. The closing plate 63 at the bottom of the outer mixing chamber 61 is an annular structure, and the closing plate 63 at the bottom of the inner mixing chamber 62 is a circular structure. A material discharge shell 64 having the same geometric shape as the closing plate 63 at the bottom of the outer mixing chamber 61 is fixed to the bottom side wall, and the material discharge shell 64 passes through the closing plate 63.

[0062] The transmission shell 65, which is a disc-shaped structure, is fixed on the inner ring side wall of the unloading shell 64. A transmission rod 231 is provided inside the transmission shell 65. The transmission rod 231 is fixed on the driving shaft 23. The driving shaft 23 runs through all the transmission shells 65. The end of the transmission rod 231 is fixed to the bottom of the corresponding mixing rod 67.

[0063] A discharge pipe 68 with a valve is fixed to the bottom of the discharge shell 64 .

[0064] A scraper plate 66 is overlapped on the bottom side wall of the discharge shell 64 , and the scraper plate 66 is connected to the transmission rod 231 .

[0065] In this embodiment, the driving shaft 23 drives the transmission rod 231 to rotate, and the transmission rod 231 drives the mixing rod 67 to rotate, thereby achieving stirring of the material inside the external mixing chamber 61. After the mixing is completed, the valve is opened and the stirred material flows out through the discharge pipe 68.

[0066] A stirring blade is fixed on the surface of the driving shaft 23 located in the inner mixing chamber 62 . The driving shaft 23 drives the stirring blade to rotate, and the materials in the inner mixing chamber 62 are mixed by the stirring blade.

[0067] Embodiment 3

[0068] This embodiment is derived on the basis of the second embodiment. Figure 3 and Figure 7As shown, it also includes a plurality of auxiliary stirring components 7 , which are arranged inside the outer mixing chamber 61 and are cooperatively connected with the stirring rods 671 inside the outer mixing chamber 61 .

[0069] Furthermore, the auxiliary stirring assembly 7 includes a connecting block 71, and the connecting block 71 is fixed on the side wall of the sorting shell 6 that encloses the outer mixing chamber 61;

[0070] The self-rotating shaft 72 is arranged on the connecting block 71 and is rotatably connected to the connecting block 71 . A plurality of stirring plates 73 distributed in a ring array are fixed to the end of the self-rotating shaft 72 . The stirring plates 73 can overlap with the stirring rod 671 .

[0071] In this embodiment, the stirring rod 671 moves with the mixing rod 67. The moving stirring rod 671 contacts the stirring plate 73, pushing the stirring plate 73 to move, thereby causing the rotating shaft 72 to rotate, driving other stirring plates 73 on the rotating shaft 72 to move, thereby achieving auxiliary stirring. The continuously moving stirring rod 671 continuously pushes different stirring plates 73 to move, thereby achieving continuous auxiliary stirring.

[0072] The materials mentioned in this application are plastic particles, additives or fillers.

[0073] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A blending and mixing machine for producing modified plastics, comprising a workbench (1), characterized in that: A mixing shell (3) is fixed on the workbench (1), and a driving assembly (2) is arranged on the top of the mixing shell (3); A feed hopper (4), the feed hopper (4) being arranged directly above the mixing shell (3), the bottom of the feed hopper (4) being connected to a feed pipe (41), the feed pipe (41) penetrating the top side wall of the mixing shell (3) and extending to the inner cavity of the mixing shell (3); A screening shell (5), the screening shell (5) is connected to the bottom of the material conveying pipe (41), a sub-screening plate (8) is fixed to the bottom of the screening shell (5), the sub-screening plate (8) closes the bottom of the screening shell (5), the sieve hole diameter of the sub-screening plate (8) gradually increases from the center to the edge, and the sub-screening plate (8) also has a truncated cone structure; A classification stirring component is located at the bottom of the sieve plate (8), and comprises a classification storage portion and a stirring portion. The driving shaft (23) on the driving component (2) is connected to the stirring portion.

2. The modified plastic production blending mixer according to claim 1, characterized in that: The driving assembly (2) comprises a driving motor (21), the driving motor (21) is fixed in the inner cavity of a motor housing (22), the motor housing (22) is fixed on a mounting plate (11), the mounting plate (11) is fixed on a workbench (1), the output end of the driving motor (21) is connected to a driving shaft (23), the driving shaft (23) extends into the inner cavity of a sorting shell (6), and a protective tube (24) is fixed on the surface of the driving shaft (23), the protective tube (24) is located in the inner cavity of a feed hopper (4) and a conveying pipe (41), and the protective tube (24) passes through the screening plate (8).

3. The modified plastic production blending mixer according to claim 2, characterized in that: A scraper (241) is fixed inside the surface of the protection tube (24), the bottom of the scraper (241) overlaps the surface of the sub-screen plate (8), and the scraper (241) is arranged obliquely.

4. The modified plastic production blending mixer according to claim 1, characterized in that: The classification storage section comprises a plurality of sorting shells (6) whose diameters vary in a gradient and are mutually sleeved. The sorting shells (6) are tubular structures, the sorting shells (6) located at the center have the smallest diameter, and the sorting shells (6) located at the outside have the largest diameter. The sorting shells (6) are all concentrically arranged, and the central axis of the sorting shells (6) coincides with the central axis of the driving shaft (23).

5. The modified plastic production blending mixer according to claim 4, characterized in that: The side walls of two adjacent separation shells (6) together form an outer mixing chamber (61) with a ring-shaped cross section, and the inner chamber of the separation shell (6) located at the center alone forms an inner mixing chamber (62); The length of the inner separation shell (6) is shorter than that of the outer separation shell (6), the top of the separation shell (6) is connected to the bottom side wall of the separation plate (8), and the stirring part includes a mixing rod (67).

6. The modified plastic production blending mixer according to claim 5, characterized in that: The mixing rod (67) is located inside the outer mixing chamber (61), and a plurality of stirring rods (671) distributed in a horizontal direction are fixed on the surface of the mixing rod (67).

7. The modified plastic production blending mixer according to claim 5, characterized in that: A closing plate (63) is fixed at the bottom of the separation shell (6), and the closing plate (63) closes the bottom of the outer mixing chamber (61) or the inner mixing chamber (62). The closing plate (63) at the bottom of the outer mixing chamber (61) is an annular structure, and the closing plate (63) at the bottom of the inner mixing chamber (62) is a circular structure. A material discharge shell (64) having the same geometric shape as the closing plate (63) at the bottom of the outer mixing chamber (61) is fixed to the bottom side wall. A transmission shell (65) having a disc-shaped structure is fixed on the inner side wall of the unloading shell (64); a transmission rod (231) is provided inside the transmission shell (65); the transmission rod (231) is fixed on a driving shaft (23); the driving shaft (23) passes through all the transmission shells (65); and the end of the transmission rod (231) is fixed to the bottom of the corresponding mixing rod (67); A discharge pipe (68) with a valve is fixed to the bottom of the discharge shell (64).

8. The modified plastic production blending mixer according to claim 7, characterized in that: A stirring blade is fixed on the surface of the driving shaft (23) located in the inner mixing chamber (62).

9. The modified plastic production blending mixer according to claim 6, characterized in that: It also includes a plurality of auxiliary stirring components (7), wherein the auxiliary stirring components (7) are arranged inside the external mixing chamber (61) and are cooperatively connected with the stirring rods (671) inside the external mixing chamber (61).

10. The modified plastic production blending mixer according to claim 9, characterized in that: The auxiliary stirring assembly (7) comprises a connecting block (71), and the connecting block (71) is fixed on the side wall of the separation shell (6) surrounding the outer mixing chamber (61); A rotation shaft (72) is arranged on the connecting block (71), and the rotation shaft (72) is rotatably connected to the connecting block (71). A plurality of stirring plates (73) distributed in a ring array are fixed to the end of the rotation shaft (72), and the stirring plates (73) can overlap with the stirring rod (671).

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