A volumetric feeder with smooth discharge

Abstract

The utility model discloses a fluent unloading volumetric feeder, including the weighing base, the upper surface of weighing base is fixedly connected with screw housing pipe and drive box respectively, the inboard rotation of screw housing pipe is connected with two symmetrical settings feed screw, the upper surface fixed communication of screw housing pipe has hopper assembly, and the side fixed communication of screw housing pipe away from drive box has the unloading pipe, the hopper assembly includes hemispherical unloading hopper, spherical inner hopper, storage hopper and top cover, and the inside rotation of drive box is connected with the stirring rod that penetrates to the inboard of spherical inner hopper. Through swing mechanism work, can make spherical inner hopper reciprocating swing, thereby effectively avoided the powder adhesion in storage hopper, cooperate stirring rod rotation, effectively avoided the powder adhesion in spherical inner hopper inner wall, thereby for the powder smooth from hopper assembly into screw housing pipe provided the convenience, realized fluent unloading, avoided the powder waste and the later stage manual cleaning.

Description

Technical Field

[0001] This utility model relates to the field of feeding machine technology, specifically a volumetric feeding machine with smooth material feeding. Background Technology

[0002] Volumetric feeders are precision feeding devices widely used in industrial production. They achieve quantitative material conveying by precisely controlling the volume of materials. This equipment employs a unique volumetric metering principle and mainly consists of core components such as a hopper, metering chamber, drive unit, and control system. During operation, material first enters the hopper, then passes through the metering chamber for precise volume measurement, and is driven by the drive unit to complete periodic discharge, thus achieving stable and continuous material conveying. Volumetric feeders are characterized by simple structure, convenient maintenance, and accurate metering. They are particularly suitable for conveying free-flowing materials such as powders and granules, playing a vital role in production lines in industries such as chemical, food, pharmaceutical, and building materials.

[0003] When conveying powder, the powder in the current volumetric feeder tends to stick to the inner wall of the hopper. If the powder sticks to the inner wall of the hopper and cannot be discharged, it will not only cause waste, but also require manual cleaning later, which is time-consuming and labor-intensive.

[0004] Therefore, we propose a volumetric feeder with smooth material feeding. Utility Model Content

[0005] The purpose of this invention is to provide a volumetric feeder with smooth material feeding to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a volumetric feeder with smooth material feeding, comprising a weighing base, wherein a screw housing tube and a drive box are fixedly connected to the upper surface of the weighing base, and the screw housing tube is fixedly connected to the side of the drive box, and two symmetrically arranged feeding screws are rotatably connected to the inner side of the screw housing tube, and the feeding screws are rotatably connected to the inside of the drive box, a hopper assembly is fixedly connected to the upper surface of the screw housing tube, and a feeding pipe is fixedly connected to the side of the screw housing tube away from the drive box; The hopper assembly includes a hemispherical discharge hopper, a spherical inner hopper, a storage hopper, and a top cover. The lower end of the hemispherical discharge hopper is fixedly connected to the middle of the screw housing tube. The spherical inner hopper is rotatably connected to the inside of the hemispherical discharge hopper, and a discharge slot is provided at the lower end of the spherical inner hopper. The storage hopper is fixedly connected to the upper end of the spherical inner hopper. The top cover is hinged to the upper end of the storage hopper. A stirring rod that penetrates to the inside of the spherical inner hopper is rotatably connected inside the drive box. A swinging mechanism that drives the spherical inner hopper to swing back and forth is provided on the side of the spherical inner hopper away from the drive box.

[0007] Preferably, the drive box further includes a geared motor, two transmission gears, two pulleys, and a transmission belt. The geared motor is fixedly connected to the side of the drive box, and the output end of the geared motor is connected to one of the feeding screws. The two transmission gears are respectively fixedly connected to the outside of the two feeding screws and mesh with each other. The two pulleys are respectively fixedly connected to the outside of the rotating ends of the stirring rod and the feeding screw, and the transmission belt is sleeved on the outer surface of the two pulleys.

[0008] Preferably, the surface of the drive box is provided with a control panel.

[0009] Preferably, the swing mechanism includes a support frame, a first sprocket, a second sprocket, a transmission chain, a transmission rod, an eccentric wheel, a protruding rod, and a limiting swing arm. The support frame is fixedly connected to the surface of the weighing base, the transmission rod is rotatably connected to the upper end of the support frame, the first sprocket is disposed on the side of the feeding pipe and is connected to the feeding screw, the second sprocket is fixedly connected to the left end of the transmission rod, the transmission chain meshes with the outer sides of the first and second sprockets, the eccentric wheel is fixedly connected to the right end of the transmission rod, the protruding rod is fixedly connected to the surface of the eccentric wheel, and the limiting swing arm is fixedly connected to the left side of the spherical inner hopper. A limiting groove is formed on the surface of the limiting swing arm, and the protruding rod is slidably connected within the limiting groove.

[0010] Preferably, the rotating end of the limiting swing arm is coaxial with the rotating end of the stirring rod.

[0011] Preferably, the stirring rod includes a rod body and two stirring blades, the two stirring blades being centrally symmetrically arranged on both sides of the rod body, and the outer surface of the stirring blades abutting against the inner wall of the spherical inner hopper.

[0012] Preferably, the surface of the top cover plate is provided with a feeding pipe, and the end of the feeding pipe is threadedly connected with a cap.

[0013] Beneficial effects This utility model provides a volumetric feeder with smooth material feeding, which has the following beneficial effects: 1. This smooth-feeding volumetric feeder, through the setting of a screw housing tube, drive box, feeding screw and hopper assembly, and the operation of the swing mechanism, can make the spherical inner hopper swing back and forth, thereby effectively avoiding the powder from adhering to the storage hopper. With the rotation of the stirring rod, not only can the powder be prevented from caking in the spherical inner hopper, but it can also be effectively prevented from adhering to the inner wall of the spherical inner hopper. This facilitates the smooth flow of powder from the hopper assembly into the screw housing tube, achieving smooth feeding and avoiding powder waste and subsequent manual cleaning.

[0014] 2. This smooth-feeding volumetric feeder, through the setting of a swing mechanism, uses a geared motor to drive the feeding screw to rotate, which in turn drives the first sprocket to rotate. Through the transmission chain belt, the second sprocket rotates, which in turn drives the eccentric wheel to rotate through the transmission rod. The eccentric wheel drives the convex rod to rotate, and the convex rod pushes the limiting swing arm, realizing the reciprocating swing of the spherical inner bucket. This feeder only requires one geared motor for drive, effectively saving the production cost of the device and is suitable for widespread application. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a volumetric feeder with smooth material feeding proposed in this utility model; Figure 2 This is a cross-sectional three-dimensional structural diagram of a volumetric feeder with smooth material feeding proposed in this utility model. Figure 3 This is a cross-sectional view of the drive box of a volumetric feeder with smooth material feeding proposed in this utility model. Figure 4 This utility model proposes a volumetric feeder with smooth material feeding. Figure 2 Schematic diagram of the enlarged structure of A in the middle; Figure 5 This is a three-dimensional structural diagram of the stirring rod of a volumetric feeder with smooth material feeding proposed in this utility model.

[0016] In the diagram: 1. Weighing base; 2. Screw outer casing; 3. Drive box; 4. Feeding screw; 5. Hopper assembly; 6. Discharge pipe; 7. Hemispherical discharge hopper; 8. Spherical inner hopper; 9. Storage hopper; 10. Top cover; 11. Discharge trough; 12. Stirring rod; 13. Swinging mechanism; 14. Gear motor; 15. Transmission gear; 16. Pulley; 17. Transmission belt; 18. Control panel; 19. Support frame; 20. First sprocket; 21. Second sprocket; 22. Transmission chain; 23. Transmission rod; 24. Eccentric wheel; 25. Protruding rod; 26. Limiting swing arm; 27. Limiting slide; 28. Rod body; 29. ​​Stirring blade; 30. Feeding pipe; 31. Cover. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] Please see Figure 1-5 This utility model provides a technical solution: a volumetric feeder with smooth material feeding, including a weighing base 1. The weighing base 1 has a built-in weight sensor to weigh the material. The upper surface of the weighing base 1 is fixedly connected to a screw housing tube 2 and a drive box 3, and the screw housing tube 2 is fixedly connected to the side of the drive box 3. The inner side of the screw housing tube 2 is rotatably connected to two symmetrically arranged feeding screws 4, and the feeding screws 4 are rotatably connected to the inside of the drive box 3. The upper surface of the screw housing tube 2 is fixedly connected to a hopper assembly 5, and the side of the screw housing tube 2 away from the drive box 3 is fixedly connected to a discharge pipe 6. The hopper assembly 5 includes a hemispherical discharge hopper 7, a spherical inner hopper 8, a storage hopper 9, and a top cover plate 10. The lower end of the hemispherical discharge hopper 7 is fixedly connected to the middle of the screw housing tube 2. The spherical inner hopper 8 is rotatably connected to the inner side of the hemispherical discharge hopper 7, and a discharge slot 11 is provided at the lower end of the spherical inner hopper 8. The storage hopper 9 is fixedly connected to the upper end of the spherical inner hopper 8. The top cover plate 10 is hinged to the upper end of the storage hopper 9. A stirring rod 12 that penetrates to the inner side of the spherical inner hopper 8 is rotatably connected inside the drive box 3. The stirring rod 12 includes a rod body 28 and two stirring blades 29. The two stirring blades 29 are symmetrically arranged on both sides of the rod body 28, and the outer surface of the stirring blades 29 abuts against the inner wall of the spherical inner hopper 8. A swinging mechanism 13 that drives the spherical inner hopper 8 to swing back and forth is provided on the side of the spherical inner hopper 8 away from the drive box 3.

[0022] By configuring the screw housing tube 2, drive box 3, feeding screw 4, and hopper assembly 5, and utilizing the swing mechanism 13, the spherical inner hopper 8 can swing back and forth, effectively preventing powder from adhering to the storage hopper 9. Combined with the rotation of the stirring rod 12, this not only prevents powder from caking in the spherical inner hopper 8, but also effectively prevents powder from adhering to the inner wall of the spherical inner hopper 8. This facilitates the smooth flow of powder from the hopper assembly 5 into the screw housing tube 2, achieving smooth material discharge and avoiding powder waste and subsequent manual cleaning.

[0023] In actual production, a locking block can be set on the surface of the top cover plate 10, and a locking ring can be set on the outside of the storage hopper 9. The top cover plate 10 can be fixed by interlocking the locking ring and the locking block.

[0024] The drive box 3 also includes a geared motor 14, two transmission gears 15, two pulleys 16, and a transmission belt 17. The geared motor 14 is fixedly connected to the side of the drive box 3, and the output end of the geared motor 14 is connected to one of the feeding screws 4. The two transmission gears 15 are fixedly connected to the outside of the two feeding screws 4 respectively, and the two transmission gears 15 mesh with each other. The two pulleys 16 are fixedly connected to the outside of the rotating ends of the stirring rod 12 and the feeding screw 4 respectively, and the transmission belt 17 is sleeved on the outer surface of the two pulleys 16.

[0025] The geared motor 14 drives one of the feeding screws 4 to rotate. The rotation of the feeding screw 4 drives the transmission gear 15 to rotate. The two transmission gears 15 mesh with each other, so that the two feeding screws 4 can rotate synchronously in opposite directions. The synchronous rotation of the two feeding screws 4 in opposite directions can transport the powder material entering the screw housing tube 2 from the hopper assembly 5 to the discharge tube 6, thus completing the discharge operation.

[0026] The surface of the drive box 3 is provided with a control panel 18, which can be used to control the geared motor 14.

[0027] The swing mechanism 13 includes a support frame 19, a first sprocket 20, a second sprocket 21, a transmission chain 22, a transmission rod 23, an eccentric wheel 24, a protruding rod 25, and a limiting swing arm 26. The support frame 19 is fixedly connected to the surface of the weighing base 1. The transmission rod 23 is rotatably connected to the upper end of the support frame 19. The first sprocket 20 is located on the side of the feed pipe 6 and is connected to the feed screw 4. The second sprocket 21 is fixedly connected to the left end of the transmission rod 23. The transmission chain 22 meshes with the outer sides of the first sprocket 20 and the second sprocket 21. The eccentric wheel 24 is fixedly connected to the right end of the transmission rod 23. The protruding rod 25 is fixedly connected to the surface of the eccentric wheel 24. The limiting swing arm 26 is fixedly connected to the left side of the spherical inner hopper 8 and limits the swing arm. The surface of arm 26 is provided with a limiting groove 27, and the protruding rod 25 is slidably connected in the limiting groove 27. The rotating end of the limiting swing arm 26 is coaxial with the rotating end of the stirring rod 12. By setting up a swing mechanism 13 and using the working of the geared motor 14, the feeding screw 4 can be driven to rotate, which in turn drives the first sprocket 20 to rotate. Through the transmission chain belt 22, the second sprocket 21 can be driven to rotate. Then, through the transmission rod 23, the eccentric wheel 24 can be driven to rotate. The eccentric wheel 24 drives the protruding rod 25 to rotate. The protruding rod 25 pushes the limiting swing arm 26, which can realize the reciprocating swing of the spherical inner bucket 8. This feeder only needs one geared motor 14 to drive it, which effectively saves the production cost of the device and is suitable for promotion.

[0028] The top cover plate 10 is provided with a feeding pipe 30, and the end of the feeding pipe 30 is threadedly connected to a cap 31. By setting the feeding pipe 30 and the cap 31, the material can be added to the hopper assembly 5 more conveniently by opening the cap 31.

[0029] Working principle: When using this smooth-feeding volumetric feeder, first open the top cover 10, then put the material into the storage hopper 9, and then close the top cover 10. Next, turn on the reduction motor 14 through the control panel 18. The reduction motor 14 drives the feeding screw 4 to rotate, which in turn drives the first sprocket 20 to rotate. Through the transmission chain belt 22, the second sprocket 21 is driven to rotate, and through the transmission rod 23, the eccentric wheel 24 is driven to rotate. The eccentric wheel 24 drives the convex rod 25 to rotate, which in turn drives the convex rod 25 to rotate. The rod 25 slides within the limiting groove 27, and pushes the limiting swing arm 26 through the protruding rod 25, which can realize the reciprocating swing of the spherical inner hopper 8; at the same time, the rotation of the feeding screw 4, in conjunction with the transmission wheel and transmission belt 17, can drive the stirring rod 12 to rotate; and the rotation of the feeding screw 4 can also drive the transmission gear 15 to rotate. Through the meshing of the two transmission gears 15, the two feeding screws 4 can be rotated synchronously in opposite directions. Through the synchronous counter-rotation of the two feeding screws 4, the powder entering the screw housing tube 2 from the hopper assembly 5 can be transported to the discharge tube 6, and finally the discharge operation is completed.

[0030] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A volumetric feeder with smooth material feeding, comprising a weighing base (1), characterized in that: The upper surface of the weighing base (1) is fixedly connected to the screw housing tube (2) and the drive box (3), and the screw housing tube (2) is fixedly connected to the side of the drive box (3). The inner side of the screw housing tube (2) is rotatably connected to two symmetrically arranged feeding screws (4), and the feeding screws (4) are rotatably connected to the inside of the drive box (3). The upper surface of the screw housing tube (2) is fixedly connected to the hopper assembly (5), and the side of the screw housing tube (2) away from the drive box (3) is fixedly connected to the discharge pipe (6). The hopper assembly (5) includes a hemispherical discharge hopper (7), a spherical inner hopper (8), a storage hopper (9), and a top cover plate (10). The lower end of the hemispherical discharge hopper (7) is fixedly connected to the middle of the screw housing tube (2). The spherical inner hopper (8) is rotatably connected to the inner side of the hemispherical discharge hopper (7). The lower end of the spherical inner hopper (8) is provided with a discharge slot (11). The storage hopper (9) is fixedly connected to the upper end of the spherical inner hopper (8). The top cover plate (10) is hinged to the upper end of the storage hopper (9). The inside of the drive box (3) is rotatably connected with a stirring rod (12) that penetrates to the inner side of the spherical inner hopper (8). The side of the spherical inner hopper (8) away from the drive box (3) is provided with a swinging mechanism (13) that drives the spherical inner hopper (8) to swing back and forth.

2. The volumetric feeder with smooth material feeding according to claim 1, characterized in that: The drive box (3) also includes a geared motor (14), two transmission gears (15), two pulleys (16) and a transmission belt (17). The geared motor (14) is fixedly connected to the side of the drive box (3), and the output end of the geared motor (14) is connected to one of the feeding screws (4). The two transmission gears (15) are fixedly connected to the outside of the two feeding screws (4) respectively, and the two transmission gears (15) mesh with each other. The two pulleys (16) are fixedly connected to the outside of the rotating end of the stirring rod (12) and the feeding screw (4) respectively, and the transmission belt (17) is sleeved on the outer surface of the two pulleys (16).

3. A volumetric feeder with smooth material feeding according to claim 2, characterized in that: The surface of the drive box (3) is provided with a control panel (18).

4. The volumetric feeder with smooth material feeding according to claim 1, characterized in that: The swing mechanism (13) includes a support frame (19), a first sprocket (20), a second sprocket (21), a transmission chain (22), a transmission rod (23), an eccentric wheel (24), a convex rod (25), and a limiting swing arm (26). The support frame (19) is fixedly connected to the surface of the weighing base (1). The transmission rod (23) is rotatably connected to the upper end of the support frame (19). The first sprocket (20) is located on the side of the feed tube (6), and the first sprocket (20) is connected to the feed screw (4). The sprocket (21) is fixedly connected to the left end of the transmission rod (23), the transmission chain (22) meshes with the outside of the first sprocket (20) and the second sprocket (21), the eccentric wheel (24) is fixedly connected to the right end of the transmission rod (23), the protruding rod (25) is fixedly connected to the surface of the eccentric wheel (24), the limiting arm (26) is fixedly connected to the left side of the spherical inner hopper (8), and the surface of the limiting arm (26) is provided with a limiting groove (27), and the protruding rod (25) is slidably connected in the limiting groove (27).

5. A volumetric feeder with smooth material feeding according to claim 4, characterized in that: The rotating end of the limiting arm (26) is coaxial with the rotating end of the stirring rod (12).

6. A volumetric feeder with smooth material feeding according to claim 1, characterized in that: The stirring rod (12) includes a rod body (28) and two stirring blades (29). The two stirring blades (29) are symmetrically arranged on both sides of the rod body (28), and the outer surface of the stirring blades (29) abuts against the inner wall of the spherical inner hopper (8).

7. A volumetric feeder with smooth material feeding according to claim 1, characterized in that: The surface of the top cover plate (10) is provided with a feeding pipe (30), and the end of the feeding pipe (30) is threadedly connected with a cap (31).

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