Raw material stirring device

Abstract

The utility model discloses a raw material stirring device which comprises a base, a lifting unit, a horizontal top cover assembled on the moving end part of the lifting unit, a stirring unit and an auxiliary mixing unit, the stirring unit comprises a rotating shaft which is coaxially arranged with the top cover and is coupled with the top cover, and a stirring paddle mechanism which is assembled on the rotating shaft and is positioned below the top cover; the auxiliary mixing unit comprises a plurality of groups of auxiliary mechanisms which are distributed at intervals along the circumferential direction of the rotating shaft and are coupled with the top cover, and a control mechanism which is assembled on the top cover and is connected with the plurality of groups of auxiliary plate mechanisms; the auxiliary mechanism comprises at least one connecting shaft which is in shaft connection with the top cover and downwards penetrates through the top cover, and a vertical flow guide plate of which the top is fixedly connected with the lower end of the connecting shaft, and when the mixture is stirred to flow, part of the mixture impacts the flow guide plate, so that the flowing direction is changed; and part of the mixture with the changed flowing direction impacts other mixtures, so that a mixing effect is achieved, and the mixing efficiency and the mixing effect of the mixture are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of raw material mixing, specifically to a raw material mixing device. Background Technology

[0002] PVC conveyor belts are widely used in industrial production and logistics transportation. The main raw material of PVC conveyor belts is polyvinyl chloride (PVC). At the same time, by adding auxiliary materials such as plasticizers, stabilizers, fillers, and reinforcing materials, their mechanical properties, processing properties, and special properties (such as flame retardancy and antistatic properties) can be improved. Pigments can also be added to change the color of the conveyor belt after coating.

[0003] During manufacturing, various raw materials need to be mixed to form a mixture, namely PVC glue. The PVC glue is then coated onto a conveyor belt, dried, and cured. Due to the high viscosity of PVC glue, the raw materials are difficult to mix. Therefore, conventional mixing devices are inefficient and have poor mixing effects. Existing mixing devices commonly use four-bladed or spiral propellers. Although spiral propellers have a better mixing effect than traditional four-bladed or three-bladed propellers, they can only stir the raw materials to flow in the same direction. Therefore, a raw material mixing device needs to be designed. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this invention is to overcome the issues of high viscosity of PVC adhesive, resulting in low mixing efficiency and poor mixing effect during stirring in the prior art.

[0005] To achieve the above objectives, this utility model provides a raw material mixing device, comprising: a base, a lifting unit mounted on the base, a horizontal top cover mounted on the moving end of the lifting unit, a mixing unit mounted on the top cover, and an auxiliary mixing unit mounted on the top cover.

[0006] The stirring unit includes a rotating shaft coaxially arranged with and axially connected to the top cover, and a stirring paddle mechanism mounted on the rotating shaft and located below the top cover. The auxiliary mixing unit includes several sets of auxiliary mechanisms spaced along the circumferential direction of the rotating shaft and axially connected to the top cover, and a control mechanism mounted on the top cover and connected to several sets of auxiliary plate mechanisms. The auxiliary mechanism includes at least one connecting shaft axially connected to the top cover and passing downward through the top cover, and a vertical guide plate fixedly connected at the top to the lower end of the connecting shaft.

[0007] Preferably, the stirring paddle mechanism includes a first connecting arm fixedly connected to the lower end of the rotating shaft and located below the guide plate, at least one spiral first stirring paddle with its lower end fixedly connected to the first connecting arm and located outside a plurality of auxiliary mechanisms, and at least one spiral second stirring paddle with its lower end fixedly connected to the first connecting arm and located inside a plurality of auxiliary mechanisms.

[0008] Preferably, the stirring paddle mechanism further includes a second connecting arm fixedly connected to the rotating shaft and fixedly connected to the upper end of the second stirring paddle, a stabilizing ring coaxially arranged with the rotating shaft and fixedly connected to the upper end of the first stirring paddle, a first annular slide fixedly mounted coaxially on the lower surface of the top cover, a plurality of vertical connecting rods spaced along the circumferential direction of the stabilizing ring and all fixedly connected to the stabilizing ring, and a plurality of first sliders correspondingly mounted on the upper end of the connecting rods and slidably connected to the first annular slide.

[0009] Preferably, each set of auxiliary mechanisms includes a pair of connecting shafts spaced apart along the radial direction of the top cover. Each connecting shaft has a gear fixedly connected to its upper end. The gears on the pair of connecting shafts mesh with each other, and one of the gears is connected to the control mechanism for transmission.

[0010] Preferably, the control mechanism includes a second annular slide fixedly mounted on the upper surface of the top cover along a coaxial axis, an annular meshing member coaxially arranged with the second annular slide and meshing with a corresponding gear, a plurality of second sliders spaced apart and mounted on the annular meshing member and slidably connected to the second annular slide, an arc-shaped meshing member coaxially mounted on the annular meshing member via a connecting frame, a horizontal worm gear mounted on the top cover via a plurality of bearing seats and meshing with the arc-shaped meshing member, and a first motor mounted on the top cover via a first mounting frame and whose output shaft is connected to the end of the worm gear.

[0011] Preferably, the stirring paddle mechanism further includes a protective cover mounted on a plurality of first sliders and covering the first annular slide.

[0012] Preferably, the stirring unit further includes a second motor mounted on the upper surface of the top cover via a second mounting bracket and whose output shaft is connected to the upper end of the rotating shaft.

[0013] According to the above technical solution, the raw material stirring device provided by this utility model has the following beneficial effects during use:

[0014] Firstly, when the mixture is stirred and flowed, some of the mixture will impact the guide plate, thereby changing the flow direction. The part of the mixture whose flow direction has been changed impacts other mixtures, which can improve the mixing efficiency and mixing effect of the mixture.

[0015] Secondly, the control mechanism drives the connecting shaft to rotate, which in turn drives the guide plate to rotate and adjust the tilt direction. This adjusts the angle between the flow direction of the modified mixture and the normal mixture, changing the angle of impact between the two different mixtures. The larger the angle of impact, the better the mixing effect.

[0016] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of a raw material mixing device provided in this utility model;

[0019] Figure 2 This is a partial three-dimensional structural diagram of a raw material mixing device provided in this utility model. Figure 1 ;

[0020] Figure 3 This is a partial three-dimensional structural diagram of a raw material mixing device provided in this utility model. Figure 2 ;

[0021] Figure 4 This is a partial three-dimensional structural diagram of a raw material mixing device provided in this utility model. Figure 3 .

[0022] Explanation of reference numerals in the attached figures

[0023] 1. Base; 2. Lifting unit; 3. Top cover; 4. Rotating shaft; 5. Connecting shaft; 6. Guide plate; 7. First connecting arm; 8. First stirring paddle; 9. Second stirring paddle; 10. Second connecting arm; 11. Stabilizing ring; 12. First annular slide; 13. Connecting rod; 14. First slider; 15. Gear; 16. Second annular slide; 17. Annular meshing component; 18. Second slider; 19. Arc-shaped meshing component; 20. Worm gear; 21. First motor; 22. Protective cover; 23. Second motor. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0025] In this utility model, unless otherwise stated, directional words such as "upper," "lower," "inner," and "outer" included in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0026] like Figure 1-4 As shown, a raw material mixing device includes: a base 1, a lifting unit 2 mounted on the base 1, a horizontal top cover 3 mounted on the moving end of the lifting unit 2, a mixing unit mounted on the top cover 3, and an auxiliary mixing unit mounted on the top cover 3.

[0027] The stirring unit includes a rotating shaft 4 coaxially arranged with and axially connected to the top cover 3, and a stirring paddle mechanism mounted on the rotating shaft 4 and located below the top cover 3. The auxiliary mixing unit includes several sets of auxiliary mechanisms spaced along the circumferential direction of the rotating shaft 4 and axially connected to the top cover 3, and a control mechanism mounted on the top cover 3 and connected to several sets of auxiliary plate mechanisms. The auxiliary mechanism includes at least one connecting shaft 5 axially connected to the top cover 3 and passing downward through the top cover 3, and a vertical guide plate 6 fixedly connected to the lower end of the connecting shaft 5 at its top.

[0028] The lifting unit 2 is a mature existing technology. It can adopt a screw slide structure to move the mixing tank containing various raw materials to the base 1. The lifting unit 2 drives the top cover 3 to move vertically downward and cover the mixing tank. The mixing unit is started, and the rotating shaft 4 rotates to drive the mixing paddle mechanism to stir the mixture. When the mixture is stirred and flowing, some of the mixture will impact the guide plate 6 to change the flow direction. The part of the mixture whose flow direction has been changed will impact other mixtures, thereby playing a mixing role and improving the mixing efficiency of the mixture.

[0029] The control mechanism can drive the connecting shaft 5 to rotate, thereby driving the guide plate to rotate and adjust the tilt direction. This adjusts the angle between the flow direction of the modified mixture and the normal mixture, changing the angle of impact between the two different mixtures. The larger the angle of impact, the better the mixing effect.

[0030] The stirring paddle mechanism includes a first connecting arm 7 fixedly connected to the lower end of the rotating shaft 4 and located below the guide plate 6, at least one spiral first stirring paddle 8 whose lower end is fixedly connected to the first connecting arm 7 and located outside a plurality of auxiliary mechanisms, and at least one spiral second stirring paddle 9 whose lower end is fixedly connected to the first connecting arm 7 and located inside a plurality of auxiliary mechanisms.

[0031] The spiral-shaped first agitator 8 and the second agitator 9 work together to further improve the mixing effect. The guide plate 6 is located between the first agitator 8 and the second agitator 9 and can adjust the tilt angle of the guide plate 6, thereby controlling and adjusting the flow direction of the changed mixture toward the first agitator 8 or the second agitator 9.

[0032] The stirring paddle mechanism also includes a second connecting arm 10 fixedly connected to the rotating shaft 4 and the upper end of the second stirring paddle 9, a stabilizing ring 11 coaxially arranged with the rotating shaft 4 and fixedly connected to the upper end of the first stirring paddle 8, a first annular slide block 12 coaxially fixedly mounted on the lower surface of the top cover 3, a plurality of vertical connecting rods 13 spaced along the circumferential direction of the stabilizing ring 11 and all fixedly connected to the stabilizing ring 11, and a plurality of first sliders 14 correspondingly mounted on the upper end of the connecting rods 13 and slidably connected to the first annular slide block 12.

[0033] The rotating shaft 4 drives the first stirring paddle 8 and the second stirring paddle 9 to rotate via the first connecting arm 7. The function of the second connecting arm 10 is to improve the stability of the second stirring paddle 9 when it rotates.

[0034] The second stirring paddle 9 will drive the first slider 14 to slide on the first annular slide block 12 through the stabilizing ring 11 and the connecting rod 13, which can improve the stability of the first stirring paddle 8 when it rotates.

[0035] Each set of auxiliary mechanisms includes a pair of connecting shafts 5 spaced apart along the radial direction of the top cover 3. Each connecting shaft 5 has a gear 15 fixedly connected to its upper end. The gears 15 on the pair of connecting shafts 5 mesh with each other, and one of the gears 15 is connected to the control mechanism for transmission.

[0036] A pair of guide plates 6 on a pair of connecting shafts 5 can change the flow direction of the two mixtures respectively, so that the two mixtures flow toward the first stirring paddle 8 and the second stirring paddle 9 respectively, thereby further improving the mixing efficiency of the mixture.

[0037] The control mechanism includes a second annular slide 16 coaxially fixedly mounted on the upper surface of the top cover 3, an annular meshing member 17 coaxially arranged with the second annular slide 16 and meshing with the corresponding gear 15, a number of second sliders 18 spaced together and slidably connected to the second annular slide 16, an arc-shaped meshing member 19 coaxially mounted on the annular meshing member 17 via a connecting frame, a horizontal worm gear 20 mounted on the top cover 3 via a number of bearings and meshing with the arc-shaped meshing member 19, and a first motor 21 mounted on the top cover 3 via a first mounting frame and whose output shaft is connected to the end of the worm gear 20.

[0038] The first motor 21 starts and drives the worm gear 20 to rotate. Through the meshing arc-shaped meshing member 19, it can drive the annular meshing member 17 to rotate, thereby driving the second slider 18 to slide on the second annular slide block 16. The annular meshing member 17 can drive the meshing gear 15 to rotate, thereby driving the guide plate 6 to rotate and adjust the tilt angle.

[0039] The stirring paddle mechanism also includes a protective cover 22 mounted on a plurality of first sliders 14 and covering the first annular slide block 12.

[0040] The stirring unit also includes a second motor 23, which is mounted on the upper surface of the top cover 3 via a second mounting bracket and whose output shaft is connected to the upper end of the rotating shaft 4.

[0041] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0042] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0043] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A raw material mixing device, characterized in that, include: The base (1), the lifting unit (2) mounted on the base (1), the horizontal top cover (3) mounted on the moving end of the lifting unit (2), the stirring unit mounted on the top cover (3), and the auxiliary mixing unit mounted on the top cover (3); The stirring unit includes a rotating shaft (4) coaxially arranged with and axially connected to the top cover (3) and a stirring paddle mechanism mounted on the rotating shaft (4) and located below the top cover (3). The auxiliary mixing unit includes several sets of auxiliary mechanisms spaced along the circumferential direction of the rotating shaft (4) and axially connected to the top cover (3) and a control mechanism mounted on the top cover (3) and connected to several sets of auxiliary plate mechanisms. The auxiliary mechanism includes at least one connecting shaft (5) axially connected to the top cover (3) and passing downward through the top cover (3) and a vertical guide plate (6) fixedly connected to the lower end of the connecting shaft (5) at its top.

2. The raw material mixing device according to claim 1, characterized in that, The stirring paddle mechanism includes a first connecting arm (7) fixedly connected to the lower end of the rotating shaft (4) and located below the guide plate (6), at least one spiral first stirring paddle (8) fixedly connected to the first connecting arm (7) and located outside a plurality of auxiliary mechanisms, and at least one spiral second stirring paddle (9) fixedly connected to the first connecting arm (7) and located inside a plurality of auxiliary mechanisms.

3. The raw material mixing device according to claim 2, characterized in that, The stirring paddle mechanism also includes a second connecting arm (10) fixedly connected to the rotating shaft (4) and fixedly connected to the upper end of the second stirring paddle (9), a stabilizing ring (11) coaxially arranged with the rotating shaft (4) and fixedly connected to the upper end of the first stirring paddle (8), a first annular slide (12) coaxially fixedly assembled on the lower surface of the top cover (3), a number of vertical connecting rods (13) spaced along the circumferential direction of the stabilizing ring (11) and fixedly connected to the stabilizing ring (11), and a number of first sliders (14) correspondingly assembled on the upper end of the connecting rods (13) and slidably connected to the first annular slide (12).

4. The raw material mixing device according to claim 1, characterized in that, Each set of auxiliary mechanisms includes a pair of connecting shafts (5) spaced along the radial direction of the top cover (3). Each connecting shaft (5) has a gear (15) fixedly connected to its upper end. The gears (15) on the pair of connecting shafts (5) mesh with each other, and one of the gears (15) is connected to the control mechanism for transmission.

5. The raw material mixing device according to claim 4, characterized in that, The control mechanism includes a second annular slide (16) coaxially fixedly mounted on the upper surface of the top cover (3), an annular meshing member (17) coaxially arranged with the second annular slide (16) and meshing with the corresponding gear (15), a number of second sliders (18) spaced together and mounted on the annular meshing member (17) and slidably connected to the second annular slide (16), an arc-shaped meshing member (19) coaxially mounted on the annular meshing member (17) via a connecting frame, a horizontal worm (20) mounted on the top cover (3) via a number of bearings and meshing with the arc-shaped meshing member (19), and a first motor (21) mounted on the top cover (3) via a first mounting frame and whose output shaft is connected to the end of the worm (20).

6. The raw material mixing device according to claim 3, characterized in that, The stirring paddle mechanism also includes a protective cover (22) mounted on a plurality of first sliders (14) and covering the first annular slide (12).

7. The raw material mixing device according to claim 1, characterized in that, The stirring unit also includes a second motor (23) mounted on the upper surface of the top cover (3) via a second mounting bracket and whose output shaft is connected to the upper end of the rotating shaft (4).

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