Stirring device for PVC granule production

Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) granule production stirring devices, in particular to a stirring device for PVC granule production, which comprises a barrel, a feed inlet and a support, the feed inlet is arranged on the upper surface of the barrel, the support is fixedly connected with the upper surface of the barrel, a servo motor is mounted on the upper surface of the support, and the servo motor is connected with the barrel. A servo motor is arranged in the barrel, a rotating shaft is installed at the driving end of the servo motor, stirring blades are fixedly connected to the cambered surface of the rotating shaft and located in the barrel, an assisting assembly is arranged in the barrel and comprises a driving unit, the driving unit comprises an air cylinder, and the air cylinder is fixedly connected with the upper surface of the barrel. According to the stirring device disclosed by the utility model, by arranging the assisting assembly, raw materials can be dispersed when the stirring device is used for adding the raw materials, so that the problem that the subsequent mixing period is prolonged due to the fact that the added raw materials are stacked in the same area is reduced, and the mixing effect of the stirring device on the raw materials is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of PVC granule production mixing devices, and in particular to a mixing device for PVC granule production. Background Technology

[0002] The mixing device in PVC granule production is a key piece of equipment in the PVC granule production process. The mixing device can efficiently and stably mix PVC raw materials, improving production efficiency and product quality, and providing a uniform and stable material base for subsequent PVC granule processing stages. It plays a vital role in the large-scale production of PVC granules.

[0003] Existing technologies, such as the utility model patent with publication number CN215396180U, disclose a stirring device for PVC granule production. This patent uses a tank body with a feed inlet at the upper end and a discharge outlet communicating with its inner cavity on one side of the lower part of the tank body. A rotating shaft is rotatably mounted at the bottom of the tank body, and the upper end of the rotating shaft extends through the feed inlet to the outside of the tank body and connects to an external drive mechanism. Multiple sets of first bushings are spaced apart on the rotating shaft inside the tank body, and multiple inclined stirring blades are spaced apart along the circumferential direction on the first bushings. At least one set of adjacent first bushings is provided with a turbulence device, which solves the problem of uneven material mixing in existing stirring tanks, resulting in poor material mixing effect.

[0004] In the process of mixing raw materials for PVC granule production using a mixing device, there is a problem that most existing mixing devices used in PVC granule production on the market tend to have raw materials fall directly below the feed inlet and gradually accumulate together. During subsequent mixing, the accumulated raw materials interfere with the mixing effect of the equipment and prolong the mixing time, thus increasing the mixing cycle. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where, when adding raw materials, most of them fall directly below the feed inlet and gradually accumulate together. During subsequent mixing, the accumulated raw materials interfere with the mixing effect of the equipment, prolong the mixing time, and thus increase the mixing cycle. Therefore, this invention proposes a mixing device for PVC granule production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stirring device for PVC granule production, comprising a cylinder, a feed inlet, and a support. The feed inlet is located on the upper surface of the cylinder. The support is fixedly connected to the upper surface of the cylinder. A servo motor is mounted on the upper surface of the support. A rotating shaft is mounted on the drive end of the servo motor. A stirring blade is fixedly connected to the arc surface of the rotating shaft. The stirring blade is located inside the cylinder. An assisting component is provided inside the cylinder. The assisting component includes a drive unit. The drive unit includes a cylinder. The cylinder is fixedly connected to the upper surface of the cylinder. A connecting plate is fixedly connected to the drive end of the cylinder. A push rod one is fixedly connected to the lower surface of the connecting plate. A push rod two is slidably connected to the inner wall of the cylinder. U-shaped blocks are fixedly connected to the lower surfaces of both push rod one and push rod two.

[0007] The assisting component also includes a guiding unit, which includes a positioning frame. The positioning frame is fixedly connected to the inner wall of the cylinder. A guide plate is rotatably connected to the inner wall of the positioning frame. A connecting frame is fixedly connected to the side surface of the U-shaped block. A crossbar is fixedly connected to both the left and right sides of the connecting frame. A protrusion is fixedly connected to the side surface of the crossbar. Sliding grooves are provided on both the front and rear sides of the guide plate. The protrusion is slidably connected to the inner wall of the sliding groove.

[0008] Preferably, reinforcing ribs are fixedly connected to both the left and right sides of the connecting frame. The reinforcing ribs are fixedly connected to the side surface of the crossbar. The reinforcing ribs can increase the connection between the connecting frame and the crossbar, thereby improving the stability of the crossbar.

[0009] Preferably, both ends of the connecting plate are arc-shaped, and the cylinder and push rod can be connected through the connecting plate so that the cylinder can drive the push rod to move when it is running.

[0010] Preferably, the push rod is slidably connected to the inner wall of the cylinder. Through the cooperation of the push rod and the U-shaped block, the connecting frame can be moved when the cylinder is working, so that the connecting frame can push the crossbar.

[0011] Preferably, there are two guide plates, which are arranged symmetrically about the rotating shaft. The guide plates are located directly below the feed inlet. When the material enters through the feed inlet, it can be guided by the guide plates to disperse the material in the cylinder.

[0012] Preferably, the connecting frame is sleeved with the surface of the rotating shaft, and the crossbar and the U-shaped block can be connected through the connecting frame, so that when the U-shaped block is pushed, the crossbar can move along with the U-shaped block.

[0013] Preferably, the crossbars are in contact with the side surface of the guide plate, and there are four crossbars arranged diagonally about the connecting frame. The crossbars can connect the protrusions and the connecting frame to ensure that when the connecting frame moves in the vertical direction, the crossbars can cooperate with the protrusions and the grooves to push the guide plate to rotate.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] In this invention, by setting up an assisting component, the raw materials can be dispersed when the stirring device adds them, thereby reducing the problem of the added raw materials accumulating in the same area, which would increase the subsequent mixing cycle, and further improving the mixing effect of the stirring device on the raw materials. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a stirring device for PVC granule production;

[0017] Figure 2 This utility model provides a schematic diagram of the internal structure of a stirring device for PVC granule production;

[0018] Figure 3 This utility model provides a schematic diagram of the auxiliary component structure of a stirring device for PVC granule production;

[0019] Figure 4 This utility model provides a partial structural schematic diagram of a stirring device for PVC granule production;

[0020] Figure 5 This utility model proposes a stirring device for PVC granule production. Figure 4 Schematic diagram of the structure at point A in the middle.

[0021] Legend:

[0022] 1. Cylinder; 2. Feed inlet; 3. Support; 4. Servo motor; 5. Rotating shaft; 6. Stirring blade; 7. Assisting components; 71. Drive unit; 711. Cylinder; 712. Connecting plate; 713. Push rod one; 714. Push rod two; 715. U-shaped block; 72. Guide unit; 721. Positioning frame; 722. Guide plate; 723. Connecting frame; 724. Crossbar; 725. Protrusion; 726. Slide groove; 727. Reinforcing rib. Detailed Implementation

[0023] Please see Figures 1-5This utility model provides a technical solution: a stirring device for PVC granule production, including a cylinder 1, a feed inlet 2 and a support 3. The feed inlet 2 is located on the upper surface of the cylinder 1. The support 3 is fixedly connected to the upper surface of the cylinder 1. A servo motor 4 is installed on the upper surface of the support 3. A rotating shaft 5 is installed on the drive end of the servo motor 4. A stirring blade 6 is fixedly connected to the arc surface of the rotating shaft 5. The stirring blade 6 is located inside the cylinder 1. An assisting component 7 is provided inside the cylinder 1.

[0024] In this embodiment: the assisting component 7 includes a drive unit 71, the drive unit 71 includes a cylinder 711, the cylinder 711 is fixedly connected to the upper surface of the cylinder 1, the drive end of the cylinder 711 is fixedly connected to a connecting plate 712, the lower surface of the connecting plate 712 is fixedly connected to a push rod 713, the inner wall of the cylinder 1 is slidably connected to a push rod 714, and the lower surfaces of both push rod 713 and push rod 714 are fixedly connected to a U-shaped block 715.

[0025] The assisting component 7 also includes a guide unit 72, which includes a positioning frame 721. The positioning frame 721 is fixedly connected to the inner wall of the cylinder 1. A guide plate 722 is rotatably connected to the inner wall of the positioning frame 721. A connecting frame 723 is fixedly connected to the side surface of the U-shaped block 715. A crossbar 724 is fixedly connected to both the left and right sides of the connecting frame 723. A protrusion 725 is fixedly connected to the side surface of the crossbar 724. Slide grooves 726 are provided on both the front and rear sides of the guide plate 722. The protrusion 725 is slidably connected to the inner wall of the slide groove 726.

[0026] Specifically, reinforcing ribs 727 are fixedly connected to both the left and right sides of the connecting frame 723. The reinforcing ribs 727 are fixedly connected to the side surface of the crossbar 724. The reinforcing ribs 727 can increase the connection between the connecting frame 723 and the crossbar 724, thereby improving the stability of the crossbar 724.

[0027] Specifically, both ends of the connecting plate 712 are arc-shaped.

[0028] In this embodiment, the cylinder 711 and the push rod 713 can be connected by the connecting plate 712, so that the cylinder 711 can drive the push rod 713 to move when it is running.

[0029] Specifically, push rod 713 is slidably connected to the inner wall of cylinder 1. Through the cooperation of push rod 713 and U-shaped block 715, the connecting frame 723 can be moved when cylinder 711 is working, so that the connecting frame 723 can push crossbar 724.

[0030] In this embodiment, there are two guide plates 722, which are arranged symmetrically about the rotating shaft 5 and are located directly below the feed inlet 2.

[0031] In this embodiment, the guide plate 722 can guide the material entering through the feed port 2 when it is pushed and rotated, so that the material can be dispersed in the cylinder 1.

[0032] Specifically, the connecting frame 723 is fitted onto the surface of the rotating shaft 5. The connecting frame 723 can connect the crossbar 724 and the U-shaped block 715, so that when the U-shaped block 715 is pushed, the crossbar 724 can move along with the U-shaped block 715.

[0033] Specifically, the crossbar 724 contacts the side surface of the guide plate 722, and there are four crossbars 724 arranged diagonally about the connecting frame 723.

[0034] In this embodiment: the crossbar 724 can connect the protrusion 725 and the connecting frame 723 to ensure that when the connecting frame 723 moves in the vertical direction, the crossbar 724 can cooperate with the protrusion 725 and the slide groove 726 to push the guide plate 722 to rotate.

[0035] Working principle: When mixing materials, raw materials are added into the cylinder 1 through the feed inlet 2. Then, the power supply to the servo motor 4 is connected. The servo motor 4 drives the rotating shaft 5, which in turn drives the stirring blades 6 to rotate. As the stirring blades 6 rotate, they mix the materials inside the cylinder 1. When adding raw materials, the power supply to the cylinder 711 is connected. The cylinder 711, when energized, reciprocates vertically to push the connecting plate 712. The connecting plate 712 pushes the push rod 713. With the assistance of the U-shaped block 715, the push rod 713 moves the connecting frame 723. Guided by the push rod 714 and another U-shaped block 715, the connecting frame 723... The moving crossbar 724 reciprocates vertically. During its movement, the crossbar 724, in conjunction with the protrusion 725 and the slide groove 726, pushes the guide plate 722. Under the constraint of the positioning frame 721, the guide plate 722 rotates along its axis. During the rotation, it guides the raw material entering from the feed port 2, so that the raw material is dispersed in the cylinder 1. By setting the assisting component 7, the raw material can be dispersed when the stirring device adds raw material, thereby reducing the problem of the added raw material accumulating in the same area, which increases the subsequent mixing cycle, and further improving the mixing effect of the stirring device on the raw material.

Claims

1. A stirring device for PVC granule production, comprising a barrel (1), a feeding port (2) and a support (3), characterized in that: The feeding port (2) is arranged on the upper surface of the cylinder (1), the bracket (3) is fixedly connected with the upper surface of the cylinder (1), the upper surface of the bracket (3) is provided with a servo motor (4), the driving end of the servo motor (4) is provided with a rotating shaft (5), the curved surface of the rotating shaft (5) is fixedly connected with a stirring paddle (6), the stirring paddle (6) is located in the inside of the cylinder (1), the inside of the cylinder (1) is provided with an assisting assembly (7), the assisting assembly (7) comprises a driving unit (71), the driving unit (71) comprises a pneumatic cylinder (711), the pneumatic cylinder (711) is fixedly connected with the upper surface of the cylinder (1), the driving end of the pneumatic cylinder (711) is fixedly connected with a connecting plate (712), the lower surface of the connecting plate (712) is fixedly connected with a push rod one (713), the inner wall of the cylinder (1) is slidably connected with a push rod two (714), the lower surfaces of the push rod one (713) and the push rod two (714) are both fixedly connected with a U-shaped block (715). The assisting assembly (7) further comprises a guide unit (72), the guide unit (72) comprises a positioning frame (721), the positioning frame (721) is fixedly connected with the inner wall of the cylinder (1), the inner wall of the positioning frame (721) is rotatably connected with a guide plate (722), the side surface of the U-shaped block (715) is fixedly connected with a connecting frame (723), the left and right sides of the connecting frame (723) are both fixedly connected with a horizontal rod (724), the side surface of the horizontal rod (724) is fixedly connected with a protruding block (725), the front and back sides of the guide plate (722) are both provided with a sliding groove (726), and the protruding block (725) is slidably connected with the inner wall of the sliding groove (726).

2. The stirring device for PVC granule production according to claim 1, characterized in that: The left and right sides of the connecting frame (723) are both fixedly connected with a reinforcing rib (727), and the reinforcing rib (727) is fixedly connected with the side surface of the horizontal rod (724).

3. The stirring device for PVC granule production according to claim 1, characterized in that: The two ends of the connecting plate (712) are both arranged in an arc shape.

4. The stirring device for PVC granule production according to claim 1, characterized in that: The push rod one (713) is slidably connected with the inner wall of the cylinder (1).

5. The stirring device for PVC granule production according to claim 1, characterized in that: The number of the guide plates (722) is two, the two guide plates (722) are symmetrically arranged about the rotating shaft (5), and the guide plates (722) are located directly below the feeding port (2).

6. The stirring device for PVC granule production according to claim 1, characterized in that: The connecting frame (723) is sleeved with the surface of the rotating shaft (5).

7. The stirring device for PVC granule production according to claim 1, characterized in that: The side surface of the horizontal rod (724) is in contact with the guide plate (722), and the number of the horizontal rods (724) is four, and the four horizontal rods (724) are diagonally arranged about the connecting frame (723).

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