High-efficiency mixing device for plastic materials

Abstract

The present invention relates to the technical field of mixing devices, and in particular to a mixing device for high-efficiency plastic materials, which solves the disadvantage of uneven quality in the prior art. The device comprises a lower shell, an upper shell and a storage tank, wherein a main shaft and a stirring shaft are rotatably mounted inside the lower shell and the upper shell through bearings, and a feeding pipe and a discharging pipe are respectively fixed on both sides of the lower shell, and the feeding pipe extends to the interior of the storage tank; through the arrangement of structures such as the storage tank, a rotating feeding component, a main material storage chamber and a stirring chamber, when mixing materials, the rotating feeding component takes away a portion of the main material and a portion of an auxiliary agent of a corresponding proportion each time it rotates, and each portion of the material is continuously fed into the interior of the stirring chamber through continuous rotation. Since the amount of a portion of the material is small, the mixing process can be completed during the feeding interval, thereby ensuring that the mixed material is completely uniform, and greatly improving the quality of the plastic finished product.

Description

Technical Field

[0001] The present invention relates to the technical field of mixing devices, in particular to a mixing device for high-efficiency plastic materials. Background Art

[0002] Plastic mixing device is mainly used for batching, mixing, coloring, drying of various resins and PE, PP, PVC, etc., as well as drying and devolatilization before processing of engineering plastics such as ABS polycarbonate. It combines hot mixing with cold mixing process. The hot mixed materials automatically enter the cold mixing to cool them down, remove residual gas, and prevent agglomeration.

[0003] The prior art plastic mixing device puts all materials into a mixing chamber for heating and stirring. Due to the large amount of raw materials input, it is impossible to ensure that the corresponding additives mixed evenly in each portion of the main material are uniform, resulting in uneven quality of the output plastic products. Summary of the invention

[0004] The purpose of the present invention is to solve the disadvantage of uneven quality in the prior art and to propose a high-efficiency mixing device for plastic materials.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A high-efficiency plastic material mixing device comprises a lower shell, an upper shell and a storage tank, wherein a main shaft and a stirring shaft are rotatably mounted inside the lower shell and the upper shell through bearings, and a feed pipe and a discharge pipe are respectively fixed on both sides of the lower shell, and the feed pipe extends to the inside of the storage tank;

[0007] An auxiliary agent adding chamber is provided inside the upper shell, a plurality of first partitions are provided inside the auxiliary agent adding chamber, and a plurality of auxiliary agent sub-chambers are formed between the plurality of first partitions;

[0008] The lower shell is provided with a shell chamber inside, and a rotating feeding assembly and second partitions symmetrically arranged on both sides of the rotating feeding assembly are respectively provided inside the shell chamber, and the rotating feeding assembly and the two second partitions separate the shell chamber into a main material storage chamber and a stirring chamber;

[0009] The end of the main shaft is fixedly connected to the top of the rotating feeding assembly, the stirring shaft extends to the interior of the stirring chamber, and an auxiliary agent channel is arranged between the plurality of auxiliary agent sub-chambers and the rotating feeding assembly. When the main shaft is operated, the rotating feeding assembly continuously feeds the raw materials in the main material storage chamber and the auxiliary agent received through the auxiliary agent channel into the interior of the stirring chamber, and mixes them evenly under the action of the stirring shaft.

[0010] Preferably, the rotating feeding assembly comprises a feeding seat and a supporting ring seat, the supporting ring seat is fixed inside the housing chamber, and the feeding seat is rotatably mounted on the top of the supporting ring seat;

[0011] The rotating feeding assembly is provided with a main material receiving groove, an auxiliary agent outlet, an auxiliary agent receiving chamber, an inner groove, a through groove and a groove in sequence. A support rod is welded on the support ring seat. A cam is provided on the top fixed sleeve of the support rod. The cam is located inside the inner groove, the through groove and the groove.

[0012] A material pushing block is slidably connected inside the main material containing groove, a roller is installed on one side of the material pushing block, a guide groove is opened on the outer peripheral surface of the cam, and the roller is slidably matched with the guide groove.

[0013] Preferably, the auxiliary agent channel comprises a blanking slot hole respectively opened on the support plate, a feeding ring groove opened on the top of the feeding seat, and a through hole opened on the bottom wall of the feeding ring groove, wherein three blanking slot holes are provided, and the feeding ring groove is connected with the three blanking slot holes;

[0014] The through hole extends to the interior of the auxiliary agent containing chamber, and the auxiliary agent outlet is inclined.

[0015] Preferably, a beating rod is welded on one side of the bottom of the support plate, and the beating rod is located inside the stirring chamber;

[0016] The feeding seat is provided with a sliding baffle plate with one side inclined on the outer wall of the auxiliary agent outlet, and a first spring is connected between the sliding baffle plate and the feeding seat;

[0017] A material blocking plate with one side being inclined is slidably mounted on one side of each of the two second partitions, and a second spring is connected between the material blocking plate and the second partition.

[0018] Preferably, the first baffle is fixedly connected to the inner wall of the auxiliary agent adding chamber by screws, and the other ends of the first baffles are fixedly connected to a central column welded to the top of the support plate, and a through hole is opened inside the central column, and the main shaft passes through and is embedded in the through hole;

[0019] The upper shell is also provided with a plurality of material feed channels which are in communication with the corresponding auxiliary agent sub-chambers, and the top openings of the material feed channels are fixedly connected with material feed pipes via flanges.

[0020] Preferably, the main shaft and the outer side of the stirring shaft near the top are respectively fixedly sleeved with a driving gear and a driven gear that are meshed with each other, and the outer side of the stirring shaft is equipped with a spiral stirring blade by screws, and the stirring blade is located inside the stirring chamber.

[0021] Preferably, a slide groove is provided on the outer side of the feeding seat, the sliding material baffle plate is slidably connected to the slide groove, and the two ends of the first spring are fixedly connected to the bottom wall of the slide groove and the sliding material baffle plate respectively.

[0022] Preferably, a rectangular groove is provided inside the second partition plate, the material blocking plate is slidably connected to the rectangular groove, and two ends of the second spring are fixedly connected to the material blocking plate and the inner wall of the rectangular groove respectively.

[0023] The beneficial effects of the present invention are:

[0024] 1. In the present invention, by setting up the storage tank, the rotating feeding component, the main material storage chamber and the stirring chamber and other structures, when mixing materials, the rotating feeding component takes away a portion of the main material and a portion of the auxiliary agent in a corresponding proportion each time it rotates, and each portion of the material is continuously fed into the stirring chamber through continuous rotation. Since the amount of a portion of material is small, the mixing process can be completed during the interval between feedings, thus ensuring that the mixed materials are completely uniform, greatly improving the quality of the plastic finished product.

[0025] 2. In the present invention, by setting the blanking slot hole, feeding ring groove, through hole, auxiliary agent chamber and other structures, multiple auxiliary agents are automatically pumped into the auxiliary agent containing chamber through the auxiliary agent channel during the feeding interval, which can realize automatic addition and proportioning of automatic auxiliary agents, and the degree of automation is high.

[0026] 3. In the present invention, by setting the main shaft, stirring shaft and other structures, the whole device is driven by the main shaft, the equipment structure is simple and compact, and has the effect of energy saving and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0028] Figure 2 This is a schematic cross-sectional view of the upper housing in this embodiment;

[0029] Figure 3 This is a schematic diagram of the structure without the upper shell in this embodiment;

[0030] Figure 4 This is a schematic diagram of the structure inside the lower housing in this embodiment;

[0031] Figure 5 for Figure 4 Schematic diagram of the structure when the middle stirring shaft and the support plate are removed;

[0032] Figure 6 for Figure 5 A schematic diagram of the structure without the upper components of the support plate;

[0033] Figure 7 This is a schematic structural diagram of the rotating feeding assembly, the second baffle and the supporting ring seat in this embodiment;

[0034] Figure 8 This is a schematic diagram of the structure of the rotating feeding assembly, the second partition plate and the supporting ring seat when they are disassembled in this embodiment;

[0035] Fig. 9 It is a front cross-sectional view of the whole embodiment;

[0036] Fig.10 It is a front schematic diagram of the rotating feeding assembly and the supporting ring seat in this embodiment.

[0037] In the figure: 1 lower shell, 2 upper shell, 3 storage tank, 31 feeding pipe, 4 driving gear, 5 driven gear, 6 discharge pipe, 7 auxiliary agent adding chamber, 71 first partition, 72 auxiliary agent sub-chamber, 73 feeding channel, 8 main shaft, 9 stirring shaft, 91 stirring blade, 10 support plate, 11 shell chamber, 111 main material storage chamber, 112 stirring chamber, 12 material drop slot, 13 rotating feeding assembly, 131 main material receiving slot, 132 auxiliary agent outlet, 133 sliding baffle plate, 134 auxiliary agent receiving chamber, 135 inner groove, 136 pushing block, 137 roller, 138 through groove, 139 groove, 14 feeding ring groove, 141 through hole, 15 second partition, 151 material blocking plate, 16 hitting rod, 17 support ring seat, 171 support rod, 172 cam. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Reference Figure 1-10, a high-efficiency plastic material mixing device, comprising a lower shell 1, an upper shell 2 and a storage tank 3, wherein a main shaft 8 and a stirring shaft 9 are rotatably mounted in the lower shell 1 and the upper shell 2 through bearings, a feeding pipe 31 and a discharging pipe 6 are fixed on both sides of the lower shell 1, and the feeding pipe 31 extends to the interior of the storage tank 3; an auxiliary agent adding chamber 7 is arranged in the interior of the upper shell 2, and a plurality of first partitions 71 are arranged in the interior of the auxiliary agent adding chamber 7, and a plurality of auxiliary agent sub-chambers 72 are formed between the plurality of first partitions 71; a shell chamber 11 is arranged in the interior of the lower shell 1, and a rotating feeding assembly 13 is arranged in the interior of the shell chamber 11 and second partitions 15 symmetrically arranged on both sides of the rotating feeding assembly 13, the rotating feeding assembly 13 and the two second partitions 15 separate the shell chamber 11 into a main material storage chamber 111 and a stirring chamber 112; the end of the main shaft 8 is fixedly connected to the top of the rotating feeding assembly 13, the stirring shaft 9 extends to the interior of the stirring chamber 112, and an auxiliary agent channel is provided between the plurality of auxiliary agent sub-chambers 72 and the rotating feeding assembly 13. When the main shaft 8 is in motion, the rotating feeding assembly 13 continuously feeds the raw materials in the main material storage chamber 111 and the auxiliary agents received through the auxiliary agent channel into the stirring chamber 112, and mixes them evenly under the action of the stirring shaft 9.

[0040] The rotating feeding assembly 13 includes a feeding seat and a support ring seat 17, the support ring seat 17 is fixed inside the shell chamber 11, and the feeding seat is rotatably installed on the top of the support ring seat 17; the interior of the rotating feeding assembly 13 is provided with a main material receiving groove 131, an auxiliary agent outlet 132, an auxiliary agent receiving chamber 134, an inner groove 135, a through groove 138 and a groove 139 in sequence, a support rod 171 is welded on the support ring seat 17, and a cam 172 is fixedly sleeved on the top of the support rod 171, and the cam 172 is located inside the inner groove 135, the through groove 138 and the groove 139; a pushing block 136 is slidably connected inside the main material receiving groove 131, and a roller 137 is installed on one side of the pushing block 136, and a guide groove is provided on the outer peripheral surface of the cam 172, and the roller 137 is slidably matched with the guide groove, and the auxiliary agent channel includes respectively A material blanking slot 12 is provided on the support plate 10, a material feeding ring groove 14 is provided on the top of the material feeding seat, and a through hole 141 is provided on the bottom wall of the material feeding ring groove 14. There are three material blanking slots 12, and the material feeding ring groove 14 is communicated with the three material blanking slots 12; the through hole 141 extends to the interior of the auxiliary agent accommodating chamber 134, and the auxiliary agent outlet 132 is inclined. A beating rod 16 is welded to one side of the bottom of the support plate 10, and the beating rod 16 is located inside the mixing chamber 112; the material feeding seat is located on the outer wall of the auxiliary agent outlet 132 and is slidably provided with a sliding baffle plate 133 with one side inclined, and a first spring is connected between the sliding baffle plate 133 and the material feeding seat; one side of each of the two second partitions 15 is slidably installed with a material blocking plate 151 with one side inclined, and a second spring is connected between the material blocking plate 151 and the second partition 15.

[0041] Among them, through the arrangement of the storage tank 3, the rotating feeding component 13, the main material storage chamber 111 and the stirring chamber 112 and other structures, when mixing materials, the rotating feeding component 13 takes away a portion of the main material and a portion of the corresponding proportion of the auxiliary agent each time it rotates, and each portion of the material is continuously fed into the stirring chamber 112 through continuous rotation. Since the amount of a portion of material is small, the mixing process can be completed during the feeding interval, thus ensuring that the mixed material is completely uniform, greatly improving the quality of the plastic product. Through the arrangement of the blanking slot hole 12, the feeding ring groove 14, the through hole 141, the auxiliary agent sub-chamber 72 and other structures, multiple portions of auxiliary agents are automatically pumped into the auxiliary agent containing chamber 134 through the auxiliary agent channel during the feeding interval, which can realize automatic addition and proportioning of automatic auxiliary agents, with a high degree of automation. Through the arrangement of the main shaft 8, the stirring shaft 9 and other structures, the entire device is driven by the main shaft 8, the equipment structure is simple and compact, and has the effect of energy saving and consumption reduction.

[0042] In addition, the first partition 71 is fixedly connected to the inner wall of the auxiliary agent addition chamber 7 by screws, and the other ends of several first partitions 71 are fixedly connected to a central column welded to the top of the support plate 10, and a through hole is provided inside the central column, and the main shaft 8 passes through and is embedded in the through hole; the upper shell 2 is also provided with several feed flow channels 73 connected to the corresponding auxiliary agent chambers 72, and the top openings of the feed flow channels 73 are fixedly connected to the feed pipes through flanges, and the main shaft 8 and the outer sides of the stirring shaft 9 near the top are respectively fixedly sleeved with corresponding The driving gear 4 and the driven gear 5 are meshed with each other, and the outer side of the stirring shaft 9 is assembled with a spiral stirring blade 91 by screws, and the stirring blade 91 is located inside the stirring chamber 112. A slide groove is provided on the outer side of the feeding seat, and the sliding baffle plate 133 is slidably connected to the slide groove. The two ends of the first spring are respectively fixedly connected to the bottom wall of the slide groove and the sliding baffle plate 133. A rectangular groove is provided inside the second partition plate 15, and the material blocking plate 151 is slidably connected to the rectangular groove. The two ends of the second spring are respectively fixedly connected to the material blocking plate 151 and the inner wall of the rectangular groove.

[0043] In this embodiment, during processing, the storage tank 3 has enough plastic main raw material inside, the valve of the feeding pipe 31 is opened, and after the vacuum pump is connected, the raw material is pumped into and fills the main material storage chamber 111 inside the lower shell 1, and the vacuum pump is continuously kept in action. After the driving source is started, the main shaft 8 rotates, and the main material receiving groove 131 and the auxiliary agent receiving chamber 134 on the side of the rotating feeding assembly 13 are located in the main material storage chamber 111;

[0044] First, under the negative pressure of the vacuum pump, the main material is automatically poured into the main material receiving groove 131 to fill it up, and a portion of the plastic raw material is obtained. Since the second partition 15 and the feeding seat separate the main material from the mixing chamber 112 when storing, the raw material will not overflow. The corresponding joint gap can be provided with sealing gaskets, sealing rings and other components. After obtaining a portion of the main material, the main shaft 8 continues to rotate. When the main shaft 8 brings the main material receiving groove 131 of the feeding seat to the mixing chamber 112, the roller 137 on one side of the pushing block 136 gradually rolls along the cam 172 to the highest point of the cam 172, and the main material is put into the mixing chamber 112;

[0045] At the same time, in the process of obtaining a portion of the main material, each portion of the auxiliary agent in the auxiliary agent sub-chamber 72 is also slowly fed downward, and is gathered in the auxiliary agent containing chamber 134 through the material drop slot 12, the feeding ring groove 14 and the through hole 141, one side of which is blocked by the sliding material baffle plate 133. When the feeding seat rotates into the mixing chamber 112, the sliding material baffle plate 133 contacts the beating rod 16, and moves relatively along the inclined side of the sliding material baffle plate 133 at the end of the beating rod 16. The sliding material baffle plate 133 slides downward under the pressure of the beating rod 16. After the sliding is opened, the material inside the auxiliary agent containing chamber 134 is dropped into the mixing chamber 112 along the auxiliary agent outlet 132;

[0046] After the feeding seat continues to rotate, the sliding baffle plate 133 is reset by the action of the spring. At this time, the main shaft 8 drives the stirring shaft 9 to move during the rotation, and the stirring shaft 9 mixes the current portion of material evenly.

[0047] It should be noted that a material blocking plate 151 is provided on one side of the second partition 15. When the sliding material blocking plate 133 passes through the material blocking plate 151, the material blocking plate 151 can be squeezed into the second partition 15. The movements between the mechanisms do not interfere with each other. The amount of main material overflowed at this moment is small and can be ignored.

[0048] In addition, each feed flow channel 73 is externally connected to a feed pipe, so that the internal auxiliary agent can be added when it is insufficient.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency plastic material mixing device, comprising a lower housing (1), an upper housing (2) and a storage tank (3), It is characterized in that A main shaft (8) and a stirring shaft (9) are rotatably mounted in the interior of the lower shell (1) and the upper shell (2) via bearings, and a feed pipe (31) and a discharge pipe (6) are respectively fixed on both sides of the lower shell (1), and the feed pipe (31) extends to the interior of the storage tank (3); An auxiliary agent adding chamber (7) is provided inside the upper shell (2), a plurality of first partitions (71) are provided inside the auxiliary agent adding chamber (7), and a plurality of auxiliary agent sub-chambers (72) are formed between the plurality of first partitions (71); The lower shell (1) is provided with a shell chamber (11) inside, and the shell chamber (11) is provided with a rotating feeding assembly (13) and second partitions (15) symmetrically arranged on both sides of the rotating feeding assembly (13), respectively, and the rotating feeding assembly (13) and the two second partitions (15) separate the shell chamber (11) into a main material storage chamber (111) and a stirring chamber (112); The end of the main shaft (8) is fixedly connected to the top of the rotating feeding assembly (13), the stirring shaft (9) extends to the inside of the stirring chamber (112), and an auxiliary agent channel is provided between the plurality of auxiliary agent sub-chambers (72) and the rotating feeding assembly (13). When the main shaft (8) moves, the rotating feeding assembly (13) continuously feeds the raw materials in the main material storage chamber (111) and the auxiliary agent received through the auxiliary agent channel into the stirring chamber (112), and the raw materials are evenly mixed under the action of the stirring shaft (9); The rotating feeding assembly (13) comprises a feeding seat and a supporting ring seat (17), wherein the supporting ring seat (17) is fixed inside the housing chamber (11), and the feeding seat is rotatably mounted on the top of the supporting ring seat (17); The rotating feeding assembly (13) is provided with a main material receiving groove (131), an auxiliary agent outlet (132), an auxiliary agent receiving chamber (134), an inner groove (135), a through groove (138) and a groove (139) in sequence; a support rod (171) is welded on the support ring seat (17); a cam (172) is fixedly sleeved on the top of the support rod (171); and the cam (172) is located inside the inner groove (135), the through groove (138) and the groove (139); A material pushing block (136) is slidably connected inside the main material containing groove (131), a roller (137) is installed on one side of the material pushing block (136), a guide groove is opened on the outer peripheral surface of the cam (172), and the roller (137) is slidably matched with the guide groove; The auxiliary agent channel comprises a blanking slot hole (12) respectively opened on the support plate (10), a feeding ring groove (14) opened on the top of the feeding seat, and a through hole (141) opened on the bottom wall of the feeding ring groove (14), the blanking slot holes (12) are arranged in three, and the feeding ring groove (14) is connected to the three blanking slot holes (12); The through hole (141) extends to the interior of the auxiliary agent containing chamber (134), and the auxiliary agent outlet (132) is inclined; A beating rod (16) is welded to one side of the bottom of the support plate (10), and the beating rod (16) is located inside the stirring chamber (112); A sliding material baffle plate (133) with one side inclined is slidably provided on the outer wall of the feed seat located at the auxiliary agent outlet (132), and a first spring is connected between the sliding material baffle plate (133) and the feed seat; A material blocking plate (151) with one side being inclined is slidably mounted on one side of each of the two second partitions (15), and a second spring is connected between the material blocking plate (151) and the second partition (15).

2. The high-efficiency plastic material mixing device according to claim 1, It is characterized in that The first baffle (71) is fixedly connected to the inner wall of the auxiliary agent adding chamber (7) by screws, and the other ends of the first baffles (71) are fixedly connected to a central column welded to the top of the support plate (10), and a through hole is opened inside the central column to penetrate the central column, and the main shaft (8) passes through and is embedded in the through hole; The upper shell (2) is also provided with a plurality of feed flow channels (73) connected to the corresponding auxiliary agent sub-chambers (72), and the top openings of the feed flow channels (73) are all fixedly connected to feed pipes via flanges.

3. The high-efficiency plastic material mixing device according to claim 1, It is characterized in that The main shaft (8) and the stirring shaft (9) are respectively fixedly sleeved with a driving gear (4) and a driven gear (5) that are meshed and connected with each other on their outer sides near the top, and the outer side of the stirring shaft (9) is equipped with a spiral stirring blade (91) by means of screws, and the stirring blade (91) is located inside the stirring chamber (112).

4. The high-efficiency plastic material mixing device according to claim 1, It is characterized in that A sliding groove is provided on the outer side of the feeding seat, the sliding material blocking plate (133) is slidably connected to the sliding groove, and the two ends of the first spring are respectively fixedly connected to the bottom wall of the sliding groove and the sliding material blocking plate (133).

5. The high-efficiency plastic material mixing device according to claim 1, It is characterized in that A rectangular groove is provided inside the second partition plate (15), the material blocking plate (151) is slidably connected to the rectangular groove, and the two ends of the second spring are fixedly connected to the material blocking plate (151) and the inner wall of the rectangular groove respectively.

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