A raw material mixing device for producing PC / ABS composite material

Abstract

The application belongs to the technical field of stirring and mixing equipment, and particularly relates to a raw material mixing equipment for producing PC / ABS composite materials. The raw material mixing equipment comprises a driving motor, a stirring shaft, a stirring rod, a transverse kettle body unit provided with the stirring shaft, two mounting ring unit arranged at two end positions of the transverse kettle body unit respectively, a belt ring support frame unit arranged on the mounting ring unit in a sleeving mode, and a driving ring unit arranged on an outer ring surface of the transverse kettle body unit and used for vertically rotating the transverse kettle body unit. The raw material mixing equipment can realize direct stirring of materials and sufficient stirring of materials by continuously turning up and down through only two motors, and the whole mixing operation is efficient and economical.

Description

Technical Field

[0001] This application belongs to the field of mixing equipment technology, and particularly relates to a raw material mixing equipment that can be used to produce PC / ABS composite materials. Background Technology

[0002] The raw materials for PC / ABS composite materials mainly include PC resin and ABS resin. Generally, the production method of this composite material includes the following steps in sequence: batching, mixing, extrusion, granulation, and drying. The raw material mixing equipment mentioned above is used in the mixing step.

[0003] Existing common raw material mixing equipment for PC / ABS composite materials mainly consists of a heating vessel, a drive motor, a stirring shaft, and a stirring rod. After the two main materials and several auxiliary materials are added to the heating vessel, basic raw material mixing can be achieved through heating and stirring.

[0004] On the other hand, the uniformity of the above-mentioned raw material mixing effect mainly depends on the stirring method and stirring time, with the former being the main direction for improvement of various new mixing equipment.

[0005] For example, Chinese utility model patent with authorization announcement number CN 217257433 U and authorization announcement date of August 23, 2022, discloses a production device for automotive PC and ABS plastic alloys. Its main structural components include: discharge port, first feeding vessel, second feeding vessel, bracket, feeding port, rotating wheel, rotating motor, rotating rod, pushing cylinder, telescopic push rod, motor wheel, converging mixing wheel, support base, stirring motor, stirring shaft, auger, and stroke cylinder.

[0006] The advantages of the production device in this utility model patent are: it further improves the mixing efficiency of production materials, making them more uniform; and it eliminates the need for workers to manually remove materials during feeding, making it safer.

[0007] However, in actual use, this production equipment still has at least the following impractical problems, specifically: First, the device has a relatively large number of electrical components, including at least three motors and two cylinders, which will greatly increase the cost of using and maintaining the device.

[0008] Secondly, the device cannot provide sufficient vertical mixing of materials. The mixing effect provided by its rotating wheel and auger is still mainly horizontal, so the mixing efficiency is relatively low. Utility Model Content

[0009] This application provides a raw material mixing device that can be used to produce PC / ABS composite materials. The technical problem it aims to solve is how to make the raw material mixing operation of PC / ABS composite materials have both relatively outstanding economy and high efficiency.

[0010] The technical solution adopted by this application to solve the above problems is: a raw material mixing device that can be used to produce PC / ABS composite materials. The structure includes a drive motor, a stirring shaft, and a stirring rod. It also includes a transverse vessel unit with the stirring shaft inserted into it, two mounting ring units respectively set at both ends of the transverse vessel unit, a ring support frame unit sleeved on the mounting ring unit, and a drive ring unit set on the outer ring surface of the transverse vessel unit and used for vertically rotating the transverse vessel unit.

[0011] A further preferred technical solution is that the transverse vessel unit includes a heated transverse vessel with the mounting ring unit on its end face, and a plurality of inlet and outlet pipes disposed on the annular surface of the heated transverse vessel.

[0012] A further preferred technical solution is that the mounting ring unit includes a transversely protruding ring disposed on the end face of the heated transverse vessel body.

[0013] A further preferred technical solution is that the ring support frame unit includes a vertical support plate, a plate opening disposed on the vertical support plate and used to pass through the drive motor, and a vertical fixing ring disposed on the vertical support plate and used to fit the transversely protruding ring.

[0014] A further preferred technical solution is that the drive ring unit includes a driven toothed ring disposed on the outer ring surface of the heated transverse vessel.

[0015] A further preferred technical solution is that the transverse vessel unit further includes an inner wall inclined ring disposed on the inner ring surface of the heated transverse vessel, having a vertical cross-sectional shape of a right triangle, and having the inner ring surface inclined to guide the material to the inlet and outlet pipes.

[0016] A further preferred technical solution includes an inclined connecting plate disposed on several of the stirring rods and used to scrape the material on the inner ring surface of the inclined inner ring.

[0017] A further preferred technical solution is that: the mounting ring unit further includes an annular plate disposed on the inner or outer annular surface of the transversely protruding ring, and a positioning hole disposed on the annular plate and corresponding to the position of the inlet and outlet pipes in the circumferential direction; the ring support frame unit further includes a limiting hole disposed on the vertical support plate, and a limiting rod disposed on the limiting hole and used to insert into the positioning hole.

[0018] A further preferred technical solution is that the drive ring unit includes a drive belt sleeved on the outer ring surface of the heated transverse vessel.

[0019] A further preferred technical solution is that the mounting ring unit further includes an inclined reinforcing plate disposed on the inner ring surface of the transversely protruding ring and used to connect the drive motor.

[0020] The beneficial effects of this application include at least the following four points.

[0021] First, this raw material mixing equipment can achieve direct stirring of materials and thorough stirring by continuous up-and-down tumbling of materials using only 2 motors, making the entire mixing operation efficient and economical.

[0022] Secondly, the vertical rotation of the horizontal vessel unit combines sufficient structural stability with ease of operation, ensuring that the materials inside are continuously turned up and down.

[0023] Third, the vertical rotation operation of this raw material mixing equipment has the advantage of flexible driving methods.

[0024] Fourth, the horizontal reactor unit has the advantage of stable circumferential angle during both feeding and discharging, ensuring the efficiency and safety of feeding and discharging operations. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this application.

[0026] Figure 2 This is a schematic diagram of the location and structure of the mounting ring unit in this application.

[0027] Figure 3 This is a structural schematic diagram of the ring support frame unit in this application.

[0028] Figure 4 This is a schematic diagram of the horizontal vessel unit in this application.

[0029] Figure 5 This is a schematic diagram showing the relative positions of the inclined inner wall ring and the inclined connecting plate in this application.

[0030] Figure 6 This is a schematic diagram showing the location and shape of the inclined reinforcing plate in this application.

[0031] Figure 7 This is a schematic diagram of a mixing operation in which a relatively large amount of material to be stirred is added in this application.

[0032] Figure 8 This is a schematic diagram showing the position of the balls in this application.

[0033] The meanings of the markings in the diagram are as follows.

[0034] Material a to be mixed; Drive motor 11, stirring shaft 12, stirring rod 13; Horizontal vessel body unit 1, mounting ring unit 2, ring support frame unit 3, drive ring unit 4, inclined connecting plate 5, base plate 6; Heated horizontal vessel body 101, inlet and outlet pipes 102, inclined inner wall ring 103; Laterally protruding circular ring 201, circular ring plate 202, positioning hole 203, inclined reinforcing plate 204; Vertical support plate 301, opening 302 on plate, vertical fixing ring 303, limiting hole 304, limiting rod 305, ball bearing 306; Driven gear ring 401, drive belt 402, axial protrusion plate 403, protrusion ball head 404. Detailed Implementation

[0035] The following description is merely a preferred embodiment of this application and is not intended to limit the scope of this application.

[0036] like Figures 1-8 As shown, a raw material mixing device for producing PC / ABS composite materials includes a drive motor 11, a stirring shaft 12, and a stirring rod 13. It also includes a transverse vessel unit 1 with the stirring shaft 12 inserted into it, two mounting ring units 2 respectively disposed at both ends of the transverse vessel unit 1, a ring support frame unit 3 sleeved on the mounting ring unit 2, and a drive ring unit 4 disposed on the outer ring surface of the transverse vessel unit 1 for vertically rotating the transverse vessel unit 1.

[0037] In this embodiment, the main body of the raw material mixing equipment is made of stainless steel or aluminum alloy. The transverse vessel unit 1 is generally cylindrical in shape, with its axial direction being transverse. It can rotate continuously and completely around the transverse axis, ultimately giving the material to be stirred a a continuous up-and-down tumbling effect, which is not available in ordinary transverse rotation stirring methods.

[0038] On the other hand, the stirring rod 13 has both horizontal and vertical stirring effects in the material to be stirred a. Combined with the fact that the molten material itself is relatively easy to spontaneously flow horizontally, it ultimately ensures that the material to be stirred a has the outstanding advantage of rapid and uniform mixing in the raw material mixing equipment.

[0039] The mounting ring unit 2 is welded to the horizontal vessel body unit 1 and sleeved with the ring support frame unit 3, so that the horizontal vessel body unit 1 is stably installed and can rotate vertically continuously.

[0040] In addition, the drive ring unit 4 is fixedly connected to the horizontal vessel unit 1, meshes with an external motor or is connected by a belt, and ultimately provides sufficient power for the vertical rotation of the horizontal vessel unit 1.

[0041] It should be noted that: The molten PC resin and ABS resin have relatively high viscosity, which is why it is difficult to quickly mix them using common horizontal stirring methods. It is also why the vertical rotation of the horizontal reactor unit 1 can tumble the material to be stirred. Otherwise, when the viscosity of the material is relatively low, after the horizontal reactor unit 1 rotates vertically, the material will still be at its lowest point, and the effect of tumbling and vertical mixing will not be achieved.

[0042] The transverse vessel unit 1 includes a heated transverse vessel 101 with the mounting ring unit 2 on its end face, and a plurality of inlet and outlet pipes 102 disposed on the annular surface of the heated transverse vessel 101.

[0043] In this embodiment, the heating type horizontal vessel 101 is equipped with an existing heating device, and its two end plates are arranged vertically. The center hole of one end plate is used to insert the stirring shaft 12. A thrust bearing is provided at this hole. The inner side of the other end plate is provided with a limiting ring for inserting the non-connecting end of the stirring shaft 12. Ultimately, the vertical rotation of the stirring rod 13 is more precise, avoiding harmful shaking.

[0044] The number of inlet and outlet pipes 102 is 2-3, and each pipe is equipped with a valve. When the inlet and outlet pipes 102 are facing upwards, they are used to add the various raw materials of PC / ABS composite material; when they are facing downwards, they are used to pour out the mixed material.

[0045] On the other hand, when feeding or discharging, the heated horizontal vessel 101 is prohibited from rotating. One way to achieve this is that the external motor connected to the drive ring unit 4 is a stepper motor, which can stop at any angle.

[0046] The mounting ring unit 2 includes a transversely protruding ring 201 disposed on the end face of the heated transverse vessel body 101.

[0047] In this embodiment, one or two transverse protruding rings 201 are provided on one side of the heated transverse vessel 101, which are used to fully fix the two ends of the heated transverse vessel 101 so that it can only rotate vertically and neither end is easy to fall off.

[0048] The ring support frame unit 3 includes a vertical support plate 301, a plate opening 302 disposed on the vertical support plate 301 and used to pass through the drive motor 11, and a vertical fixing ring 303 disposed on the vertical support plate 301 and used to fit the transversely protruding ring 201.

[0049] In this embodiment, the lower end of the vertical support plate 301 is fixedly connected to the base plate 6, and its shape is rectangular or irregular. (See attached diagram) Figure 1 As shown, its shape is roughly an irregular pattern of a circle at the top and an isosceles trapezoid at the bottom.

[0050] The main function of the opening 302 on the plate is to be horizontally close to the horizontally protruding ring 201 and the vertically fixed ring 303, so as to prevent either of them from being too long, otherwise the support strength will be reduced.

[0051] On the other hand, the number of the vertically fixed rings 303 is consistent with the number of the horizontally protruding rings 201. (See attached image) Figure 6 As shown, both have two units, resulting in relatively high stability of the interlocking. However, when the support strength is sufficient, both can also have only one unit, as shown in the attached diagram. Figure 8 As shown.

[0052] Furthermore, compared to the lateral protruding ring 201, the vertical fixing ring 303 can be fitted onto either its outer or inner side. The lateral positional stability of the heated horizontal vessel 101 relies on: the lateral protruding ring 201 appropriately abutting against the vertical support plate 301, and / or the vertical fixing ring 303 appropriately abutting against the end plate of the heated horizontal vessel 101.

[0053] The drive ring unit 4 includes a driven toothed ring 401 disposed on the outer ring surface of the heated transverse vessel body 101.

[0054] In this embodiment, the driven toothed ring 401 can be a spliced ​​style, such as a 4-segment arc-shaped style with a central angle of 90°, thereby reducing its production difficulty and cost. Each segment of the arc-shaped toothed ring can be screwed to the heated horizontal vessel body 101.

[0055] Correspondingly, the external motor is equipped with a drive gear that meshes with it. The external motor is located between the two ring support frame units 3, so it is not easily bumped and has relatively high safety.

[0056] The transverse vessel unit 1 further includes an inner wall inclined ring 103 disposed on the inner ring surface of the heated transverse vessel 101, having a vertical cross-sectional shape of a right triangle, and used to guide materials to the inlet / outlet pipe 102 by means of the inclined inner ring surface.

[0057] In this embodiment, along the axial direction of the heated transverse vessel 101, all the inlet and outlet pipes 102 are located at the same position, with several of them only circumferentially offset. Therefore, there are two inclined inner wall rings 103, and the thickness of both is minimized on the side closer to the inlet and outlet pipes 102, ultimately making the material discharge faster and more thorough.

[0058] The outer ring surface of the inclined inner wall ring 103 coincides with the inner ring surface of the heated transverse vessel body 101, and the annular end face of the former coincides with the inner end face of the latter. The two are welded and fixed together.

[0059] On the other hand, the inclined inner ring 103 is hollow, which reduces the load on the ring support unit 3 and improves the stability of the entire mixing device.

[0060] The structure of the raw material mixing equipment also includes an inclined connecting plate 5, which is disposed on several of the stirring rods 13 and used to scrape the material on the inner ring surface of the inclined inner ring 103.

[0061] In this embodiment, the number of stirring rods 13 is 2 columns, and the number of inclined connecting plates 5 is 4. The latter are always parallel to and close to the inclined inner ring surface of the inclined inner ring 103, ensuring that the material does not easily accumulate at this point.

[0062] On the other hand, it should be noted that: First, when the first two inclined connecting plates 5 are set on the first row of stirring rods 13, the relatively central stirring rod 13 does not need to be connected to the inclined connecting plate 5. Otherwise, the length of the inclined connecting plate 5 can only be further extended, which will have an obstructing effect on the discharge action at the inlet and outlet pipes 102 and is not conducive to rapid discharge. Secondly, the inclined connecting plate 5 can also connect several stirring rods 13 into a whole, further improving the stability of the overall structure of the stirring shaft 12 and the stirring rods 13.

[0063] The mounting ring unit 2 further includes an annular plate 202 disposed on the inner or outer annular surface of the transversely protruding ring 201, and a positioning hole 203 disposed on the annular plate 202 and corresponding to the position of the feed pipe 102 in the circumferential direction; the ring support frame unit 3 further includes a limiting hole 304 disposed on the vertical support plate 301, and a limiting rod 305 disposed on the limiting hole 304 and used to insert into the positioning hole 203.

[0064] In this embodiment, one of the functions of the annular plate 202 is to combine with the transversely protruding ring 201 to make the structural strength of the mounting ring unit 2 relatively high, allowing more material to be added into the heated transverse vessel 101.

[0065] The second function of the annular plate 202 is to provide a location for the positioning hole 203; otherwise, it can only be opened on the heated horizontal vessel body 101, which would significantly reduce the structural strength of the heated horizontal vessel body 101.

[0066] On the other hand, in the circumferential direction of the heated horizontal vessel body 101, the position of the positioning hole 203 is aligned with all the feed pipes 102, thereby calibrating the latter by the former, so that when the limiting rod 305 passes through the limiting hole 304 first and then selectively passes through the positioning hole 203, it ensures that any feed pipe 102 can be kept vertically fixed when needed, which facilitates feeding.

[0067] Of course, as long as the heated transverse vessel 101 is circumferentially fixed, feeding can also be performed when one or more of the inlet / outlet pipes 102 are tilted.

[0068] On the other hand, the annular plate 202 is also provided with at least one positioning hole 203 that is centrally symmetrical with any of the inlet and outlet pipes 102, which is the auxiliary hole. Figure 2 The lowest positioning hole 203 allows at least one of the feed pipes 102 to be completely vertically downward and fixed, thereby facilitating the discharge operation.

[0069] Finally, it is optional whether or not threads are provided on the positioning hole 203 and the limiting hole 304. The limiting rod 305 can be a matching screw or a regular straight rod. Please refer to the appendix for details. Figure 6 .

[0070] The drive ring unit 4 includes a drive belt 402 sleeved on the outer ring surface of the heated transverse vessel body 101.

[0071] In this embodiment, the drive belt 402 can be used to replace the driven gear ring 401 described above. In this case, the drive belt 402 is also wound around the drive shaft of the external motor.

[0072] On the other hand, to prevent slippage between the heated transverse vessel body 101 and the drive belt 402, an axial protrusion plate 403 and / or a protruding ball head 404 can be provided on the outer ring surface of the former.

[0073] Furthermore, an axial protruding plate 403 is provided on the outer ring surface of the heated transverse vessel 101. The length of the latter is 80-90% of that of the former and avoids the inlet and outlet pipes 102. Ultimately, the latter can fully enhance the structural strength of the former and prevent deformation of the central position on the heated transverse vessel 101.

[0074] The mounting ring unit 2 also includes an inclined reinforcing plate 204 disposed on the inner ring surface of the transversely protruding ring 201 and used to connect the drive motor 11.

[0075] In this embodiment, the inclined reinforcing plate 204 can be a two-section bent shape with an obtuse angle, as detailed in the attached diagram. Figure 6 One end of the inclined reinforcing plate 204 is connected to the inner ring surface of the transversely protruding ring 201 and radially avoids the vertical fixed ring 303. Finally, it is connected to the drive motor 11, which can improve the installation stability of the drive motor 11 and prevent the stirring shaft 12 from bending and deforming.

[0076] On the other hand, the inner and / or outer ring surfaces of the vertical fixed ring 303 are also provided with ball bearings 306, which makes the resistance of the transverse protruding ring 201 relatively smaller when rotating compared with the vertical fixed ring 303.

[0077] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this application. These are non-inventive modifications and are protected by patent law as long as they are within the scope of the claims of this application.

Claims

1. A raw material mixing device for producing PC / ABS composite materials, comprising a drive motor (11), a stirring shaft (12), and a stirring rod (13), characterized in that: It also includes a transverse vessel unit (1) with the stirring shaft (12) inserted into it, two mounting ring units (2) respectively set at both ends of the transverse vessel unit (1), a ring support frame unit (3) sleeved on the mounting ring unit (2), and a drive ring unit (4) set on the outer ring surface of the transverse vessel unit (1) and used for vertically rotating the transverse vessel unit (1).

2. The raw material mixing equipment for producing PC / ABS composite materials according to claim 1, characterized in that: The transverse vessel unit (1) includes a heated transverse vessel (101) with the mounting ring unit (2) on its end face, and a plurality of inlet and outlet pipes (102) disposed on the annular surface of the heated transverse vessel (101).

3. The raw material mixing equipment for producing PC / ABS composite materials according to claim 2, characterized in that: The mounting ring unit (2) includes a transversely protruding ring (201) disposed on the end face of the heated transverse vessel body (101).

4. A raw material mixing device for producing PC / ABS composite materials according to claim 3, characterized in that: The ring support frame unit (3) includes a vertical support plate (301), a plate opening (302) disposed on the vertical support plate (301) and used to pass through the drive motor (11), and a vertical fixing ring (303) disposed on the vertical support plate (301) and used to fit the transverse protruding ring (201).

5. A raw material mixing device for producing PC / ABS composite materials according to claim 2, characterized in that: The drive ring unit (4) includes a driven toothed ring (401) disposed on the outer ring surface of the heated transverse vessel body (101).

6. A raw material mixing device for producing PC / ABS composite materials according to claim 2, characterized in that: The transverse vessel unit (1) further includes an inner wall inclined ring (103) disposed on the inner ring surface of the heated transverse vessel (101), with a vertical cross-sectional shape of a right triangle, and used to guide the material to the inlet / outlet pipe (102) by means of the inclined inner ring surface.

7. A raw material mixing device for producing PC / ABS composite materials according to claim 6, characterized in that: It also includes an inclined connecting plate (5) disposed on several of the stirring rods (13) and used to scrape the material on the inner ring surface of the inclined inner ring (103).

8. A raw material mixing device for producing PC / ABS composite materials according to claim 4, characterized in that: The mounting ring unit (2) further includes an annular plate (202) disposed on the inner or outer annular surface of the transverse protruding ring (201), and a positioning hole (203) disposed on the annular plate (202) and circumferentially corresponding to the position of the feed pipe (102); the ring support frame unit (3) further includes a limiting hole (304) disposed on the vertical support plate (301), and a limiting rod (305) disposed on the limiting hole (304) and used to insert into the positioning hole (203).

9. A raw material mixing device for producing PC / ABS composite materials according to claim 2, characterized in that: The drive ring unit (4) includes a drive belt (402) sleeved on the outer ring surface of the heated transverse vessel body (101).

10. A raw material mixing device for producing PC / ABS composite materials according to claim 3, characterized in that: The mounting ring unit (2) also includes an inclined reinforcing plate (204) disposed on the inner ring surface of the transverse protruding ring (201) and used to connect the drive motor (11).

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