A spiral metering and positive and negative pressure conversion integrated conveying device

Abstract

The present application relates to the technical field of conveying device, and disclose a kind of spiral metering and positive and negative pressure conversion integrated conveying device, solve the problem that the impurities in raw materials directly enter volute and easily affect normal conveying of raw materials, it includes volute, the volute is equipped with discharge port, the top of volute is equipped with feed pipe, filter mechanism is equipped between feed pipe and volute, filter mechanism is equipped with mounting mechanism, filter mechanism includes the feed pipe fixed on the top of volute, vertical frame is equipped between feed pipe and feed pipe, the inside of vertical frame is equipped with inner frame, the inside of inner frame is fixedly connected with inner ring, the top of inner ring is fixedly connected with arc convex filter screen;The present application, by starting rotating motor, vertical frame can be driven reciprocating motion, in turn, arc convex filter screen can be continuously moved up and down, so as to further avoid arc convex filter screen blockage to improve the filtering effect of raw materials.

Description

Technical Field

[0001] This invention belongs to the field of conveying device technology, specifically a spiral metering and positive / negative pressure conversion integrated conveying device. Background Technology

[0002] The volute metering and positive / negative pressure conversion integrated conveying device is a specialized equipment for the automated conveying and processing of powder and granular materials. It integrates volute volumetric metering, negative pressure suction feeding, and positive pressure closed feeding functions into one unit. It achieves precise quantitative proportioning of materials by relying on the rotation of the impeller inside the volute, and realizes the switching between negative pressure suction and positive pressure feeding through the air duct switching. It can complete the entire process of automated material feeding, metering, and long-distance conveying. It is widely applicable to material conveying production scenarios in industries such as chemical, building materials, food, and lithium battery. It can effectively simplify the layout of production line equipment and improve the automation level and production efficiency of material conveying and proportioning.

[0003] Currently, materials are directly fed into the volute for metering and conveying. However, raw materials often contain particulate impurities, agglomerated materials, and hard debris. These impurities can easily become stuck in the gap between the metering impeller and the inner wall of the volute, causing the impeller to be obstructed or jammed. This directly leads to equipment downtime, interrupting material conveying and metering operations, severely affecting continuous production. It can also cause impeller wear, deformation, or even damage, significantly increasing the frequency of equipment maintenance and operating costs. Furthermore, impeller jamming directly compromises the accuracy of material metering, causing material ratio deviations and greatly reducing product quality and production stability. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides an integrated conveying device for volute metering and positive / negative pressure conversion, which effectively solves the problem that impurities mixed in the raw materials directly enter the volute and easily affect the normal conveying of the raw materials.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a spiral metering and positive / negative pressure conversion integrated conveying device, comprising a spiral vortex shell, a discharge port on the spiral vortex shell, a feed pipe above the spiral vortex shell, a filter mechanism between the feed pipe and the spiral vortex shell, and an installation mechanism on the filter mechanism;

[0006] The filtration mechanism includes a feed pipe fixed to the top of the volute housing, a vertical frame between the feed pipe and the feed tube, an inner frame inside the vertical frame, an inner ring fixedly connected to the inner side of the inner frame, an arc-shaped convex filter screen fixedly connected to the top of the inner ring, a guide frame located above the arc-shaped convex filter screen fixedly connected to the inner side of the inner frame, an outer ring fixedly sleeved on the outer side of the feed pipe, and two pillars symmetrically fixedly connected between the outer ring and the volute housing.

[0007] Preferably, a lifting frame is fixedly sleeved on the outer side of the upright frame, and the lifting frame is movably sleeved on the outer side of the two pillars.

[0008] Preferably, a bracket is fixedly connected between the outer ring and the volute shell, a rotary motor is fixedly mounted on the bracket, a drive shaft is fixedly connected to the rotary motor, a side plate is fixedly connected to the end of the drive shaft away from the rotary motor, a drive rod is rotatably connected to the outer side of the side plate, and the top end of the drive rod is rotatably connected to the lifting frame.

[0009] Preferably, multiple side rods are fixedly connected at equal angles to the outer side of the side plate, and each side rod has a ball bearing that abuts against the bracket at the end away from the side plate.

[0010] Preferably, two outer plates are fixedly connected to the outer side of the upright frame, and a sealing telescopic cover is fixedly connected to the side of the two outer plates that are far apart from each other. The ends of the two sealing telescopic covers that are far apart from each other are fixedly connected to the feed pipe and the inlet pipe, respectively.

[0011] Preferably, the installation mechanism includes an installation plate located on the outside of the frame, a sealing ring and a sealing plate are fixedly connected to the outside of the installation plate, an opening is provided on the side of the frame, the sealing plate is inserted into the opening and fixedly connected to the inner frame, the sealing ring is sleeved on the outside of the sealing plate and fits against the frame, a positioning block is fixedly connected to the outside of the frame, and the installation plate is sleeved on the outside of the positioning block.

[0012] Preferably, two guide rods are symmetrically fixedly connected between the lifting frame and the upright frame. Guide plates are movably sleeved on the outer sides of the two guide rods. Insert plates are fixedly connected to the sides of the two guide plates that are close to each other. Insert frames are fixedly connected to both sides of the mounting plate. The two insert plates are inserted into the two insert frames respectively. Guide grooves are provided on both sides of the lifting frame. The two guide plates are slidably connected to the two guide grooves respectively. Two sliding rods are symmetrically fixedly connected to the inner side of the lifting frame. A sliding plate is movably sleeved between the two sliding rods. Movable rods are rotatably connected to both sides of the sliding plate. The ends of the two movable rods away from the sliding plate are rotatably connected to the outer sides of the two guide plates respectively.

[0013] Preferably, a screw is fixedly connected to the inner side of the lifting frame, a slide plate is sleeved on the outer side of the screw, a screw cylinder is threaded onto the outer side of the screw, and a handwheel is fixedly connected to the end of the screw cylinder away from the slide plate.

[0014] Preferably, a sealing ring one that fits against the slide plate is fixedly connected to the end of the screw barrel away from the handwheel, and a sealing ring two is fixedly connected to the lifting frame, with the side of the slide plate away from the sealing ring one fitting against the sealing ring two.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention, by setting a vertical frame between the feed pipe and the feed tube, and setting an inner frame and an arc-shaped convex filter screen inside the vertical frame, can filter the raw materials to prevent impurities from entering the volute shell. The impurities intercepted by the arc-shaped convex filter screen can fall to the top of the inner ring under the action of gravity, preventing the impurities from clogging the arc-shaped convex filter screen. By starting a rotary motor, the vertical frame can be driven to reciprocate, which in turn can make the arc-shaped convex filter screen move up and down continuously, thereby further preventing the arc-shaped convex filter screen from clogging and improving the filtration effect of the raw materials.

[0017] 2. This invention facilitates the placement of the inner frame into the vertical frame by placing the mounting plate on the outside of the positioning block, and by pushing the sliding plate, the two insert plates can be inserted into the two insert frames respectively. By tightening the screw, the sliding plate can be limited, which facilitates the clamping of the mounting plate, thereby facilitating the quick installation of the inner frame and the arc-shaped convex filter screen into the vertical frame.

[0018] 3. This invention, through the cooperation between sealing ring one and sealing ring two, can seal and protect the screw, thereby effectively preventing the screw from being exposed to the conveying and processing environment and thus from being corroded. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the integrated conveying device for spiral metering and positive / negative pressure conversion of the present invention.

[0022] Figure 2 This is a schematic diagram of the filter mechanism structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the frame of the present invention;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the inner frame of the present invention;

[0025] Figure 5 This is a schematic diagram of the side disc structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the installation mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram of the mounting plate structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the disassembled structure of the screw barrel and slide plate of the present invention.

[0029] In the diagram: 1. Volute housing; 2. Filtering mechanism; 201. Feed pipe; 202. Vertical frame; 203. Outer ring; 204. Support; 205. Support column; 206. Drive rod; 207. Lifting frame; 208. Side plate; 209. Sealing telescopic cover; 2010. Inner frame; 2011. Outer plate; 2012. Opening; 2013. Guide frame; 2014. Arc-shaped convex filter screen; 2015. Inner ring; 2016. Drive shaft; 2017. Rotary motor; 2018. Ball bearing; 2 019. Side rod; 3. Mounting mechanism; 301. Mounting plate; 302. Guide groove; 303. Movable rod; 304. Slide plate; 305. Screw barrel; 306. Slide rod; 307. Guide round rod; 308. Guide plate; 309. Insert plate; 3010. Positioning block; 3011. Sealing ring; 3012. Sealing plate; 3013. Insert frame; 3014. Handwheel; 3015. Sealing ring one; 3016. Sealing ring two; 3017. Screw; 4. Feed pipe; 5. Discharge port. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] Example 1, by Figures 1-8 The present invention relates to an integrated conveying device for volute metering and positive / negative pressure conversion, comprising a volute shell 1, a discharge port 5 on the volute shell 1, a feed pipe 4 above the volute shell 1, a filter mechanism 2 between the feed pipe 4 and the volute shell 1, an installation mechanism 3 on the filter mechanism 2, a volumetric metering impeller sealed at the center of the volute shell 1, and an independent variable frequency drive motor driving the impeller to rotate. By adjusting the output speed of the variable frequency drive motor, the discharge volume of the impeller per unit time is changed, thereby precisely controlling the material conveying flow rate to achieve high-precision quantitative volute metering. The equipment integrates a shared vortex air pump and has two independent air ducts for negative pressure suction and positive pressure feeding. An electrically controlled reversing and diverting valve group is set at the intersection of the air ducts. The positive and negative pressure working conditions can be switched by switching the valve group to conduct different air ducts. In the negative pressure mode, the air pump connects to the air duct on the feed side to form a vacuum suction force, which continuously draws the external raw materials into the volute 1. After quantitative metering is completed, it switches to the positive pressure mode. The high-pressure airflow enters the air-material mixing area at the bottom of the volute 1, carrying a quantitative amount of powder and conveying it to the outside through the discharge port 5 for long-distance sealed transport. The entire process of filtration, metering, positive and negative pressure suction and feeding runs continuously and synchronously.

[0032] In Embodiment 2, based on Embodiment 1, the filter mechanism 2 includes an inlet pipe 201 fixed to the top of the volute housing 1. A vertical frame 202 is provided between the inlet pipe 201 and the feed pipe 4. An inner frame 2010 is provided inside the vertical frame 202. An inner ring 2015 is fixedly connected to the inner side of the inner frame 2010. An arc-shaped convex filter screen 2014 is fixedly connected to the top of the inner ring 2015. A guide frame 2013 located above the arc-shaped convex filter screen 2014 is fixedly connected to the inner side of the inner frame 2010. The guide frame 2013 guides the raw material. The flow mechanism ensures that the raw material flowing out of the feed pipe 4 is completely filtered through the arc-shaped convex filter screen 2014. An outer ring 203 is fixedly sleeved on the outside of the feed pipe 4. Two support pillars 205 are symmetrically fixedly connected between the outer ring 203 and the volute shell 1. A lifting frame 207 is fixedly sleeved on the outside of the vertical frame 202, and the lifting frame 207 is movably sleeved on the outside of the two support pillars 205. A bracket 204 is fixedly connected between the outer ring 203 and the volute shell 1. A rotary motor 2017 is fixedly mounted on the bracket 204. A drive shaft 2016 is fixedly connected to the 17. A side plate 208 is fixedly connected to the end of the drive shaft 2016 furthest from the rotary motor 2017. A drive rod 206 is rotatably connected to the outer side of the side plate 208. The top end of the drive rod 206 is rotatably connected to the lifting frame 207. Multiple side rods 2019 are fixedly connected at equal angles to the outer side of the side plate 208. Each side rod 2019 has a ball bearing 2018 at its end furthest from the side plate 208 that abuts against the bracket 204. When the side plate 208 rotates, each side rod 2019 drives... All the moving balls 2018 roll on the bracket 204 to ensure the stability of the side plate 208 when rotating. Two outer plates 2011 are fixedly connected to the outside of the frame 202. Sealing telescopic covers 209 are fixedly connected to the side of the two outer plates 2011 that are far apart from each other. The ends of the two sealing telescopic covers 209 that are far apart from each other are fixedly connected to the feed pipe 4 and the feed pipe 201 respectively. By setting two sealing telescopic covers 209, the sealing between the feed pipe 201 and the feed pipe 4 and the frame 202 is ensured to avoid leakage of raw materials.

[0033] When the raw material enters the vertical frame 202 from the feed pipe 4, it is guided by the flow guide frame 2013 and filtered through the arc-shaped convex filter screen 2014. The top surface of the arc-shaped convex filter screen 2014 is arc-shaped, so that the impurities intercepted by the arc-shaped convex filter screen 2014 fall to the top of the inner ring 2015 under the action of gravity and the impact of the raw material, thus preventing impurities from accumulating on the arc-shaped convex filter screen 2014 and causing blockage. At the same time, the rotary motor 2017 can be started to drive the drive shaft 2016 to rotate, which in turn drives the side plate 208 to rotate. Through the drive rod 206, the lifting frame 207 slides back and forth along the two pillars 205, and drives the vertical frame 202 to move up and down. Meanwhile, the arc-shaped convex filter screen 2014 moves continuously, further preventing the arc-shaped convex filter screen 2014 from becoming blocked. Finally, the raw material is effectively filtered to prevent impurities from entering the volute shell 1.

[0034] In Example 3, based on Example 1, the installation mechanism 3 includes an installation plate 301 located outside the frame 202. A sealing ring 3011 and a sealing plate 3012 are fixedly connected to the outer side of the installation plate 301. An opening 2012 is provided on the side of the frame 202. The sealing plate 3012 is inserted into the opening 2012 and fixedly connected to the inner frame 2010. The sealing ring 3011 is sleeved on the outer side of the sealing plate 3012 and fits against the frame 202. The sealing ring 3011 ensures the sealing between the installation plate 301 and the frame 202, preventing material leakage. A positioning block 3010 is fixedly connected to the outer side of the frame 202. The installation plate 301 is sleeved on the outer side of the positioning block 3010. Two guide rods 307 are symmetrically fixedly connected between the lifting frame 207 and the frame 202. Guide plates 308 are movably sleeved on the outer sides of both guide rods 307. Insert plates 309 are fixedly connected to the sides of the two guide plates 308 that are close to each other. Both sides of plate 301 are fixedly connected to insert frames 3013, and two insert plates 309 are respectively inserted into the two insert frames 3013. Both sides of lifting frame 207 are provided with guide grooves 302, and two guide plates 308 are slidably connected to the two guide grooves 302 respectively. Two sliding rods 306 are symmetrically fixedly connected to the inner side of lifting frame 207. A sliding plate 304 is movably sleeved between the two sliding rods 306. Both sides of sliding plate 304 are rotatably connected to movable rods 303. 03 The end away from the slide plate 304 is rotatably connected to the outside of the two guide plates 308. The inner side of the lifting frame 207 is fixedly connected to the screw 3017. The slide plate 304 is sleeved on the outside of the screw 3017, and the slide plate 304 does not contact the screw 3017 to avoid wear on the screw 3017 when the slide plate 304 moves. The screw 3017 is threaded with a screw cylinder 305 on the outside. The end of the screw cylinder 305 away from the slide plate 304 is fixedly connected to the handwheel 3014.

[0035] First, insert the inner frame 2010 through the opening 2012 into the upright frame 202, so that the mounting plate 301 fits on the outside of the positioning block 3010 until the sealing plate 3012 is inserted into the opening 2012. At this time, the sealing ring 3011 is in contact with the upright frame 202. Then, push the sliding plate 304 to slide along the two guide plates 308. The two movable rods 303 drive the two guide plates 308 to slide along the two guide rods 307 respectively. At the same time, the two insert plates 309 move closer to each other until they are inserted into the two insert frames 3013 respectively. Then, rotate the handwheel 3014 clockwise to drive the screw barrel 305 to rotate and move outside the screw 3017, thereby limiting the sliding plate 304 and preventing the two insert plates 309 from loosening. This completes the clamping of the mounting plate 301. Finally, quickly install the inner frame 2010 and the arc-shaped convex filter screen 2014 into the upright frame 202.

[0036] In Example 4, based on Example 1, a sealing ring 3015 that fits against the slide plate 304 is fixedly connected to the end of the screw barrel 305 away from the handwheel 3014, and a sealing ring 3016 that fits against the slide plate 304 is fixedly connected to the lifting frame 207. The side of the slide plate 304 away from the sealing ring 3015 fits against the sealing ring 3016.

[0037] When the slide plate 304 is pushed until the two insert plates 309 are inserted into the two insert frames 3013 respectively, the slide plate 304 is in contact with the sealing ring 3016. When the screw barrel 305 is tightened, the sealing ring 3015 is in contact with the slide plate 304, thereby achieving sealing protection for the screw 3017 and effectively preventing the screw 3017 from being exposed to the conveying and processing environment and being corroded.

Claims

1. A spiral metering and positive / negative pressure conversion integrated conveying device, comprising a spiral vortex housing (1), characterized in that: The volute shell (1) is provided with a discharge port (5), and a feed pipe (4) is provided above the volute shell (1). A filter mechanism (2) is provided between the feed pipe (4) and the volute shell (1), and an installation mechanism (3) is provided on the filter mechanism (2). The filtration mechanism (2) includes a feed pipe (201) fixed to the top of the volute (1), a vertical frame (202) between the feed pipe (201) and the feed pipe (4), an inner frame (2010) on the inner side of the vertical frame (202), an inner ring (2015) fixedly connected to the inner side of the inner frame (2010), an arc-shaped convex filter screen (2014) fixedly connected to the top of the inner ring (2015), a guide frame (2013) located above the arc-shaped convex filter screen (2014) fixedly connected to the inner side of the inner frame (2010), an outer ring (203) fixedly sleeved on the outer side of the feed pipe (4), and two pillars (205) symmetrically fixedly connected between the outer ring (203) and the volute (1).

2. The integrated conveying device for spiral metering and positive / negative pressure conversion according to claim 1, characterized in that: A lifting frame (207) is fixedly sleeved on the outside of the upright frame (202), and the lifting frame (207) is movably sleeved on the outside of the two pillars (205).

3. The integrated conveying device for spiral metering and positive / negative pressure conversion according to claim 1, characterized in that: A bracket (204) is fixedly connected between the outer ring (203) and the volute shell (1). A rotary motor (2017) is fixedly installed on the bracket (204). A drive shaft (2016) is fixedly connected to the rotary motor (2017). A side plate (208) is fixedly connected to the end of the drive shaft (2016) away from the rotary motor (2017). A drive rod (206) is rotatably connected to the outer side of the side plate (208). The top end of the drive rod (206) is rotatably connected to the lifting frame (207).

4. The integrated conveying device for spiral metering and positive / negative pressure conversion according to claim 3, characterized in that: Multiple side rods (2019) are fixedly connected at equal angles to the outer side of the side plate (208), and each side rod (2019) is provided with a ball (2018) that abuts against the bracket (204) at the end away from the side plate (208).

5. The integrated conveying device for spiral metering and positive / negative pressure conversion according to claim 1, characterized in that: Two outer plates (2011) are fixedly connected to the outside of the frame (202). Each outer plate (2011) is fixedly connected to a sealing telescopic cover (209) on the side away from each other. The ends of the two sealing telescopic covers (209) that are away from each other are fixedly connected to the feed pipe (4) and the feed pipe (201), respectively.

6. The integrated conveying device for spiral metering and positive / negative pressure conversion according to claim 1, characterized in that: The installation mechanism (3) includes an installation plate (301) located outside the frame (202). A sealing ring (3011) and a sealing plate (3012) are fixedly connected to the outside of the installation plate (301). An opening (2012) is provided on the side of the frame (202). The sealing plate (3012) is inserted into the opening (2012) and fixedly connected to the inner frame (2010). The sealing ring (3011) is sleeved on the outside of the sealing plate (3012) and fits against the frame (202). A positioning block (3010) is fixedly connected to the outside of the frame (202). The installation plate (301) is sleeved on the outside of the positioning block (3010).

7. The integrated conveying device for spiral metering and positive / negative pressure conversion according to claim 2, characterized in that: Two guide rods (307) are symmetrically fixedly connected between the lifting frame (207) and the upright frame (202). Guide plates (308) are movably sleeved on the outer sides of each guide rod (307). Insert plates (309) are fixedly connected to the sides of the two guide plates (308) that are close to each other. Insert frames (3013) are fixedly connected to both sides of the mounting plate (301). The two insert plates (309) are respectively inserted into the two insert frames (3013). The lifting frame (207) has two... Each side is provided with a guide groove (302), and two guide plates (308) are slidably connected to the two guide grooves (302) respectively. Two slide rods (306) are symmetrically fixedly connected to the inner side of the lifting frame (207). A slide plate (304) is movably sleeved between the two slide rods (306). Movable rods (303) are rotatably connected to both sides of the slide plate (304). The ends of the two movable rods (303) away from the slide plate (304) are rotatably connected to the outer side of the two guide plates (308) respectively.

8. The integrated conveying device for spiral metering and positive / negative pressure conversion according to claim 2, characterized in that: The inner side of the lifting frame (207) is fixedly connected to a screw (3017), and the slide plate (304) is sleeved on the outer side of the screw (3017). The outer side of the screw (3017) is threaded with a screw cylinder (305), and the end of the screw cylinder (305) away from the slide plate (304) is fixedly connected to a handwheel (3014).

9. The integrated conveying device for spiral metering and positive / negative pressure conversion according to claim 8, characterized in that: The end of the screw barrel (305) away from the handwheel (3014) is fixedly connected to a sealing ring one (3015) that fits against the slide plate (304), and a sealing ring two (3016) is fixedly connected to the lifting frame (207). The side of the slide plate (304) away from the sealing ring one (3015) fits against the sealing ring two (3016).

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