Multidirectional stirring type melt blending device for preparing regenerated plastic

Abstract

The utility model relates to the technical field of regenerated plastic preparation, and discloses a multidirectional stirring type melt blending device for regenerated plastic preparation, which comprises a mixing barrel, and a multidirectional stirring mechanism for multidirectional stirring of molten raw materials is arranged in the mixing barrel. According to the multidirectional stirring type melt blending device for preparing the regenerated plastic, the driving motor drives the first gear and the second gear to rotate, and then the stirring blades on the connecting rod are driven to stir plastic raw materials in the mixing barrel. Meanwhile, the rotating direction of the connecting rod is opposite to the rotating direction of the spiral stirring shaft, so that multi-directional stirring of the raw materials is realized. In order to further enhance the stirring effect, the device is further provided with an air pump, pressurized air flow is sprayed into the mixing barrel from the spray head through a one-way air conveying pipe, an annular pipeline and an air pressure increasing valve, and the plastic raw materials are stirred. Through cooperation of mechanical stirring and airflow agitation, the mixing efficiency and uniformity of raw materials are improved, and the quality and consistency of plastic products are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of recycled plastic preparation, in particular to a multi-directional stirring type melting and blending device for recycled plastic preparation. Background Technique

[0002] In the process of recycled plastic preparation, in order to mix plastic raw materials efficiently and evenly, and improve the quality and production efficiency of plastic products, special blending equipment is often used.

[0003] For example, a PP modified plastic mixing and melting blending device disclosed in the Chinese patent authorization publication number CN222223146U. In this existing device, by setting a stirring component, when the modified plastic needs to be mixed, two motors are started to drive two rotating rods to rotate towards each other. The two rotating rods rotating towards each other drive a number of stirring rods to rotate to mix and stir the modified plastic. At the same time, the rotating rod can drive the rotating plate to rotate through the connecting column, and the rotation of the rotating plate can clean the upper end of the screening plate to avoid blockage of the screening plate. By setting the stirring component, the mixing and stirring effect of the modified plastic is better. However, there are still some deficiencies in the existing technology. Especially when stirring and mixing raw materials at different positions, due to the limitations of the layout and rotation mode of the stirring rods, it is often difficult to achieve all-round and multi-directional uniform stirring. This results in that some raw materials may not be fully stirred and mixed during the mixing process, thus affecting the quality and performance of the final product. And as the mixing work continues, although the impurities accumulated on the surface area of the screening plate can be cleaned, it is difficult to export the impurities after the work is completed, and there is a problem of poor practicability. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multi-directional stirring type melting and blending device for recycled plastic preparation, which improves the mixing efficiency and uniformity of recycled plastic raw materials through the cooperation of mechanical stirring and air flow agitation, and ensures the quality and consistency of plastic products.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A multi-directional stirring type melting and blending device for recycled plastic preparation, including a mixing barrel, a support seat is arranged at the bottom end of the mixing barrel, a discharge pipe is arranged at the bottom end of the mixing barrel, and a multi-directional stirring mechanism for multi-directionally stirring the molten raw materials is arranged in the mixing barrel.

[0006] The multi-directional stirring mechanism includes a stirring component. The stirring component includes at least two connecting rods rotating in the mixing barrel, and at least three stirring blades are fixed outside the connecting rods. A spiral stirring shaft for improving the stirring effect is also arranged in the mixing barrel.

[0007] The mixing barrel is also provided with an auxiliary mixing component for spraying the raw materials to improve the stirring effect. The auxiliary mixing component includes an annular plate arranged on the inner wall of the mixing barrel, an annular pipe is fixed to the top of the annular plate, a gas boosting valve is arranged outside the annular pipe, and a nozzle is fixed outside the gas boosting valve.

[0008] Preferably, the multi-directional stirring mechanism also includes a driving assembly, which includes a driving motor arranged at the top of the mixing barrel and a second gear arranged at the top of the connecting rod, and the output shaft of the driving motor is transmission-connected with a first gear, and the first gear is meshed with the second gear.

[0009] Preferably, the driving assembly also includes a connecting gear plate arranged on the inner wall of the mixing barrel, the connecting gear plate is meshed with the second gear, the bottom end of the output shaft of the driving motor is connected to the top end of the spiral stirring shaft, and the first gear is arranged on the outer wall of the spiral stirring shaft.

[0010] Preferably, the driving assembly further comprises a mounting rod disposed at the top end of the second gear, and the mounting rod is rotatably connected to the top end inside the mixing barrel.

[0011] Preferably, the mixing barrel is further provided with a filter plate for filtering the raw materials to be discharged, and the top end of the filter plate is in contact with the stirring blade located at the bottom end of the connecting rod.

[0012] Preferably, a feed hopper for feeding raw materials into the mixing barrel is arranged outside the mixing barrel, and a top cover for shielding the feed hopper is arranged at the top of the feed hopper.

[0013] Preferably, the auxiliary mixing assembly further comprises a fixed seat arranged at the bottom of the feed hopper, an air pump is arranged in the fixed seat, a one-way air pipe is arranged at the output end of the air pump, and the one-way air pipe passes through the mixing barrel and is connected to the annular pipe.

[0014] Preferably, a maintenance door for inspecting and maintaining the filter plate is rotatably provided in the mixing barrel.

[0015] Compared with the prior art, the utility model provides a multi-directional stirring melt blending device for preparing recycled plastics, which has the following beneficial effects:

[0016] 1. The multi-directional stirring type melting and blending device for preparing recycled plastics drives the first gear and the second gear to rotate through a driving motor, and then drives the stirring blades on the connecting rod to stir the plastic raw materials in the mixing barrel. At the same time, the rotation direction of the connecting rod is opposite to that of the spiral stirring shaft, realizing multi-directional stirring of the raw materials. To further enhance the stirring effect, the device is also equipped with an air pump, which sprays the pressurized air flow from the nozzle into the mixing barrel through a one-way air delivery pipe, an annular pipe and a gas booster valve to agitate the plastic raw materials. Through the cooperation of mechanical stirring and air flow agitation, the mixing efficiency and uniformity of the raw materials are improved, ensuring the quality and consistency of plastic products;

[0017] 2. After the mixing is completed, the raw materials of the multi-directional stirring type melting and blending device for preparing recycled plastics are filtered through a filter plate, and the filtered raw materials are discharged through a discharge pipe. The stirring blades can also disturb the impurities attached to the surface of the filter plate during the stirring process, effectively preventing the filter plate from being blocked and ensuring smooth discharging. In addition, when the raw materials in the mixing barrel are discharged completely, the maintenance door can be rotated to clean the impurities accumulated on the surface of the filter plate. This design not only facilitates maintenance but also ensures the long-term stable operation of the device, reducing the downtime caused by blockage or impurity accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structure schematic diagram of a multi-directional stirring type melting and blending device for preparing recycled plastics according to the present utility model Figure 1 ;

[0019] Figure 2 is a three-dimensional structure schematic diagram of a multi-directional stirring type melting and blending device for preparing recycled plastics according to the present utility model Figure 2 ;

[0020] Figure 3 is a partial disassembled structure schematic diagram of a multi-directional stirring type melting and blending device for preparing recycled plastics according to the present utility model Figure 1 ;

[0021] Figure 4 is a sectional structure schematic diagram of the mixing barrel in a multi-directional stirring type melting and blending device for preparing recycled plastics according to the present utility model;

[0022] Figure 5 is a partial disassembled structure schematic diagram of a multi-directional stirring type melting and blending device for preparing recycled plastics according to the present utility model Figure 2 ;

[0023] Figure 6 is a disassembled structure schematic diagram of the auxiliary mixing component in a multi-directional stirring type melting and blending device for preparing recycled plastics according to the present utility model;

[0024] Figure 7 is Figure 6Schematic diagram of the enlarged structure at A in the [device].

[0025] In the figure: 1, mixing barrel; 2, support base; 31, feed hopper; 32, inspection door; 33, discharge pipe; 34, filter plate; 4, multi-directional stirring mechanism; 41, stirring assembly; 411, connecting rod; 412, stirring blade; 413, spiral stirring shaft; 42, driving assembly; 421, driving motor; 422, first gear; 423, second gear; 424, mounting rod; 425, connecting tooth disc; 5, auxiliary mixing assembly; 51, fixed seat; 52, air pump; 53, one-way air delivery pipe; 54, annular plate; 55, annular pipeline; 56, gas pressure increasing valve; 57, spray head. Specific implementation mode

[0026] To further understand the features, technical means, specific purposes and functions achieved by the present utility model, the following further describes the present utility model in detail with reference to the drawings and specific implementation modes.

[0027] Example 1: Please refer to Figures 1-7 , the present utility model provides a technical solution: a multi-directional stirring type melting and blending device for preparing recycled plastics, including a mixing barrel 1, a support base 2 is arranged at the bottom end of the mixing barrel 1, a discharge pipe 33 is arranged at the bottom end of the mixing barrel 1, and a multi-directional stirring mechanism 4 for multi-directionally stirring the molten raw materials is arranged in the mixing barrel 1.

[0028] The multi-directional stirring mechanism 4 includes a stirring assembly 41. The stirring assembly 41 includes at least two connecting rods 411 rotating in the mixing barrel 1. At least three stirring blades 412 are fixed outside the connecting rods 411. A spiral stirring shaft 413 for improving the stirring effect is also arranged in the mixing barrel 1. The design of the multi-directional stirring mechanism 4 realizes multi-directional and all-round stirring of the molten raw materials through the combination of at least two connecting rods 411 and at least three stirring blades 412, improving the uniformity and efficiency of stirring. The addition of the spiral stirring shaft 413 further enhances the stirring effect and ensures the full mixing of the raw materials.

[0029] An auxiliary mixing assembly 5 for jetting the raw materials to improve the stirring effect is also arranged in the mixing barrel 1. The auxiliary mixing assembly 5 includes an annular plate 54 arranged on the inner wall of the mixing barrel 1. An annular pipeline 55 is fixed at the top end of the annular plate 54. A gas pressure increasing valve 56 is arranged outside the annular pipeline 55. A spray head 57 is fixed outside the gas pressure increasing valve 56. The jetting stirring of the raw materials is realized.

[0030] Furthermore, the multi-directional stirring mechanism 4 also includes a driving assembly 42, which includes a driving motor 421 disposed at the top of the mixing barrel 1 and a second gear 423 disposed at the top of the connecting rod 411. The output shaft of the driving motor 421 is connected to a first gear 422, and the first gear 422 is meshed with the second gear 423. The design of the driving assembly 42 realizes the automatic driving of the stirring assembly 41 by driving the first gear 422 to rotate through the driving motor 421, thereby driving the second gear 423 and the connecting rod 411 to rotate, thereby improving the automation degree and operation convenience of the equipment.

[0031] Furthermore, the driving assembly 42 further includes a connecting toothed disc 425 disposed on the inner wall of the mixing barrel 1, the connecting toothed disc 425 meshes with the second gear 423, the bottom end of the output shaft of the driving motor 421 is connected to the top end of the spiral stirring shaft 413, and the first gear 422 is disposed on the outer wall of the spiral stirring shaft 413. The design of the connecting toothed disc 425 enhances the stability of the rotation of the second gear 423 and ensures the smooth operation of the stirring assembly 41. At the same time, the driving motor 421 simultaneously drives the spiral stirring shaft 413 to rotate, thereby realizing multi-directional stirring and further improving the stirring efficiency.

[0032] Furthermore, the driving assembly 42 further includes a mounting rod 424 disposed at the top of the second gear 423, and the mounting rod 424 is rotatably connected to the top of the mixing barrel 1. The design of the mounting rod 424 provides a stable support and a rotation axis for the second gear 423, ensuring that the meshing transmission between the second gear 423 and the first gear 422 is more reliable, thereby improving the operational stability of the device.

[0033] Furthermore, the mixing barrel 1 is also provided with a filter plate 34 for filtering the raw materials to be discharged, and the top of the filter plate 34 contacts the stirring blade 412 located at the bottom of the connecting rod 411. The design of the filter plate 34 can filter the mixed raw materials and remove impurities therein, thereby improving the quality of the product. At the same time, the contact between the stirring blade 412 and the filter plate 34 can disturb the impurities on the surface of the filter plate 34 during the stirring process to prevent the discharge of the material from being blocked.

[0034] Furthermore, a feed hopper 31 is provided outside the mixing barrel 1 for feeding raw materials into the mixing barrel 1, and a top cover is provided on the top of the feed hopper 31 for shielding the feed hopper 31. The design of the feed hopper 31 and the top cover facilitates the addition of raw materials, and the top cover can shield the feed hopper 31 to prevent the molten raw materials from splashing out or being contaminated by the outside world during the addition process, thereby ensuring the cleanliness and safety of the raw materials.

[0035] Furthermore, a maintenance door 32 is rotatably provided in the mixing barrel 1 for inspecting and maintaining the filter plate 34. The design of the maintenance door 32 facilitates the inspection and maintenance of the filter plate 34. When there are many impurities accumulated on the surface of the filter plate 34, the maintenance door 32 can be rotated to clean the filter plate 34, thereby ensuring the long-term stable operation of the equipment and the continuous high-quality output of the product.

[0036] Example 2: Please refer to Figures 6-7 , and combined with the first embodiment, it is further obtained that the auxiliary mixing component 5 also includes a fixed seat 51 arranged at the bottom of the feed hopper 31, an air pump 52 is arranged in the fixed seat 51, and a one-way air pipe 53 is arranged at the output end of the air pump 52, and the one-way air pipe 53 runs through the mixing barrel 1 and is connected to the annular pipe 55. The design of the auxiliary mixing component 5 generates an airflow through the air pump 52, which is transported to the annular pipe 55 through the one-way air pipe 53, providing an air source for the nozzle 57, realizing the jet stirring of the raw materials, and further improving the stirring effect and mixing uniformity.

[0037] In the actual operation process, first, open the top cover of the feed hopper 31, add the molten plastic raw material, and introduce it into the mixing barrel 1 through the feed hopper 31 for mixing. In order to ensure the mixing effect of the plastic raw materials, it is necessary to start the drive motor 421. The drive motor 421 drives the first gear 422 to rotate, and the rotation of the first gear 422 will rotate the second gear 423 meshed with it, thereby rotating the connecting rod 411. The stirring blade 412 on the connecting rod 411 stirs the raw materials in the mixing barrel 1. At the same time, the connecting toothed disc 425 can ensure that the second gear 423 rotates stably. Under the meshing action of the first gear 422 and the second gear 423, the rotation direction of the connecting rod 411 is opposite to the rotation direction of the spiral stirring shaft 413, thereby realizing multi-directional stirring of the raw materials. In order to further improve the stirring and mixing effect, the air pump 52 can be started to generate airflow. The airflow is delivered to the annular pipe 55 through the one-way air delivery pipe 53, and after being pressurized by the gas booster valve 56, it is sprayed into the mixing barrel 1 through the nozzle 57 to agitate the plastic raw materials and enhance the stirring effect.

[0038] After mixing, the raw materials are filtered under the action of the filter plate 34, and the filtered raw materials are discharged through the discharge pipe 33. The stirring blade 412 can also disturb the impurities attached to the surface of the filter plate 34 during the stirring process to prevent the material from being blocked. In addition, when the raw materials in the mixing barrel 1 are discharged, the inspection door 32 can be rotated to clean the impurities accumulated on the surface of the filter plate 34, providing a guarantee for subsequent work.

[0039] The above embodiments merely represent one or several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the appended claims.

Claims

1. A multi-directional stirring melt blending device for preparing recycled plastics, comprising a mixing barrel (1), characterized in that: The mixing barrel (1) is provided with a multi-directional stirring mechanism (4) for stirring the molten raw materials in multiple directions; the multi-directional stirring mechanism (4) comprises a stirring assembly (41), the stirring assembly (41) comprises at least two connecting rods (411) rotating in the mixing barrel (1), at least three stirring blades (412) are fixed outside the connecting rods (411), and the mixing barrel (1) is also provided with a spiral stirring shaft (413) for improving the stirring effect; the multi-directional stirring mechanism (4) also comprises a driving assembly (42), the driving assembly (42) comprises a driving motor (42) arranged at the top end of the mixing barrel (1) 1) and a second gear (423) arranged at the top end of the connecting rod (411), the output shaft of the driving motor (421) is drivingly connected to the first gear (422), and the first gear (422) is meshed with the second gear (423); the mixing barrel (1) is further provided with an auxiliary mixing assembly (5), the auxiliary mixing assembly (5) comprising an annular plate (54) arranged on the inner wall of the mixing barrel (1), an annular pipe (55) is fixed at the top end of the annular plate (54), a gas booster valve (56) is arranged outside the annular pipe (55), and a nozzle (57) is fixed outside the gas booster valve (56).

2. The multi-directional stirring melt blending device for preparing recycled plastics according to claim 1, characterized in that: The driving assembly (42) comprises a connecting toothed disc (425) arranged on the inner wall of the mixing barrel (1), the connecting toothed disc (425) meshing with the second gear (423), the bottom end of the output shaft of the driving motor (421) being connected to the top end of the spiral stirring shaft (413), and the first gear (422) being arranged on the outer wall of the spiral stirring shaft (413).

3. A multi-directional stirring melt blending device for preparing recycled plastics according to claim 2, characterized in that: The driving assembly (42) further comprises a mounting rod (424) arranged at the top end of the second gear (423), and the mounting rod (424) is rotatably connected to the top end inside the mixing barrel (1).

4. The multi-directional stirring melt blending device for preparing recycled plastics according to claim 1, characterized in that: The mixing barrel (1) is also provided with a filter plate (34) for filtering the raw materials to be discharged, and the top end of the filter plate (34) is in contact with the stirring blade (412) located at the bottom end of the connecting rod (411).

5. The multi-directional stirring melt blending device for preparing recycled plastics according to claim 1, characterized in that: A feeding hopper (31) for feeding raw materials into the mixing barrel (1) is arranged outside the mixing barrel (1), and a top cover for shielding the feeding hopper (31) is arranged at the top of the feeding hopper (31).

6. A multi-directional stirring melt blending device for preparing recycled plastics according to claim 5, characterized in that: The auxiliary mixing assembly (5) further comprises a fixed seat (51) arranged at the bottom of the feed hopper (31), an air pump (52) being arranged in the fixed seat (51), a one-way air supply pipe (53) being arranged at the output end of the air pump (52), and the one-way air supply pipe (53) passing through the mixing barrel (1) and being in communication with the annular pipe (55).

7. A multi-directional stirring melt blending device for preparing recycled plastics according to claim 6, characterized in that: The mixing barrel (1) is rotatably provided with an inspection door (32) for inspecting and maintaining the filter plate (34).

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