A mixing and conveying feeding device

Abstract

The utility model discloses a kind of stirring conveying feeding devices, comprising: feed box, poking mechanism, conveying barrel, conical discharge barrel, screw conveying assembly and conical screw assembly, the top of the feed box is equipped with feed inlet;The poking mechanism is arranged in the feed box, the poking mechanism is suitable for the material in the feed box is stirred and stirred;The conveying barrel is below the feed box and is communicated with the feed box;The conical discharge barrel is inverted conical structure, it is below the conveying barrel and is communicated with the conveying barrel, the bottom of the conical discharge barrel is equipped with discharge port;The screw conveying assembly is arranged in the conveying barrel, the screw conveying assembly is suitable for the material of the feed box is conveyed to conical discharge barrel along the axial direction of the conveying barrel. It can realize the centralized pressing and stable conveying of material in discharge area, ensure that powdery material is evenly and controllably fed.

Description

Technical Field

[0001] This utility model relates to a mixing, conveying and feeding device. Background Technology

[0002] Currently, in the feeding systems of equipment such as granulation extruders, powdery materials, due to their loose and free-flowing characteristics, are prone to uneven feeding, bridging, and blockage during the feeding process, affecting the stability and continuity of feeding. Traditional feeding devices typically rely on the material's own weight for feeding, making it difficult to guarantee uniform, stable, and quantitative feeding as required.

[0003] A search of existing technologies revealed a Chinese patent (CN220496203U) disclosing a feeding machine conveying and mixing device. This device includes a material cylinder with a conveying shaft and a mixing shaft rotatably connected to it. One end of the conveying shaft is connected to a feeding screw, and the other end is connected to a small gear. One end of the mixing shaft is connected to several mixing blades, and the other end is connected to a large gear. The small gear and the large gear mesh to achieve synchronous rotation. After the material enters the material cylinder through the inlet, it is mixed by the mixing blades and the crushing rod, and then falls to the feeding screw under gravity and is conveyed to the outlet.

[0004] However, although the feeding device in the aforementioned prior art has a stirring structure in the storage area, it relies solely on the feeding screw for horizontal conveying in the discharge area. For powdery materials, problems such as poor material flow and fluctuations in feeding amount easily occur at the discharge port due to material accumulation and insufficient flowability, making it impossible to achieve a stable, uniform, and controllable forced feeding effect. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a mixing, conveying and feeding device that can realize the concentrated pressing and stable conveying of materials in the discharge area, and ensure that the powdered materials are fed in a uniform and controllable manner.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a mixing, conveying, and feeding device, comprising:

[0007] The feeding box body has a feeding port on its top;

[0008] A material feeding mechanism is disposed inside the feeding box and is adapted to stir and agitate the material entering the feeding box.

[0009] A conveying cylinder is disposed below the feeding box and communicates with the feeding box.

[0010] A conical discharge cylinder, which has an inverted conical structure, is located below the conveying cylinder and communicates with the conveying cylinder. The bottom of the conical discharge cylinder is provided with a discharge port.

[0011] A screw conveyor assembly is disposed inside the conveying cylinder, and the screw conveyor assembly is adapted to convey the material of the feed box to the conical discharge cylinder along the axial direction of the conveying cylinder;

[0012] A conical spiral assembly is rotatably installed inside a conical discharge cylinder. The conical spiral assembly is provided with conical spiral blades and is adapted to drive the conical spiral blades to rotate inside the conical discharge cylinder, thereby spirally pushing the material to the discharge port for discharge.

[0013] Furthermore, to facilitate the concentration of materials under gravity, the feed box has a frustum-shaped structure that is larger at the top and smaller at the bottom.

[0014] Furthermore, a specific structure for a feeding mechanism is provided, the feeding mechanism comprising:

[0015] At least one stirring shaft is rotatably mounted inside the feed box;

[0016] At least one feeding rod is mounted on the stirring shaft, and the feeding rod has feeding blades at its end.

[0017] Furthermore, to expand the range of stirring, three stirring shafts are provided. The three stirring shafts are arranged in parallel and installed at intervals along the side wall of the feeding box.

[0018] Furthermore, to avoid interference when the material feeding rod rotates, multiple material feeding rods are provided, and the multiple material feeding rods on adjacent stirring shafts are staggered.

[0019] Furthermore, to facilitate the adjustment of the installation position of the feeding rod, a sliding sleeve 221 is provided in the middle of the feeding rod 22. The sliding sleeve 221 is slidably disposed on the stirring shaft 21. A through hole 224 is provided on the sliding sleeve 221. The sliding sleeve 221 is adapted to pass through the through hole 224 and abut against the stirring shaft 21 through a fixing member, thereby fixing the feeding rod 22 on the stirring shaft 21.

[0020] Furthermore, the conical spiral assembly also includes a central shaft, which is rotatably mounted on the conical discharge cylinder along its central axis;

[0021] The outer diameter of the conical helical blade gradually decreases from top to bottom along the central axis, and the lower end of the conical helical blade is fixedly connected to the lower end of the central axis.

[0022] Furthermore, to facilitate observation of the state of the material inside the box, an observation window is provided on the side wall of the feeding box.

[0023] Furthermore, the mixing and conveying feeding device also includes a vibrator, which is installed on the outer surface of the side wall of the feed box.

[0024] By adopting the above technical solution, this utility model has the following beneficial effects:

[0025] In this invention, after the material enters through the inlet of the feeding box, the feeding mechanism stirs and agitates the material within the feeding box, keeping it loose and causing it to move downwards into the conveying cylinder connected to the feeding box. The screw conveyor assembly conveys the material axially within the conveying cylinder to the conical discharge cylinder connected to it. The conical discharge cylinder has an inverted conical structure and is located below the conveying cylinder. The conical spiral assembly is rotatably installed inside the conical discharge cylinder and is equipped with conical spiral blades. The conical spiral assembly drives the conical spiral blades to rotate within the conical discharge cylinder, spirally pushing the material to the discharge port at the bottom of the conical discharge cylinder for discharge. This achieves a continuous conveying process from feeding to discharging, solving the problem of fine and soft powdery materials easily bridging and clogging, resulting in uneven and discontinuous feeding, and achieving the effect of uniform and continuous material discharge.

[0026] The feeding box has a frustum-shaped structure that is wider at the top and narrower at the bottom. This allows the material to fall naturally due to its own weight, reducing material retention within the box. Three parallel stirring shafts are installed at intervals along the side wall of the feeding box. Multiple feeding rods are also present, with those on adjacent stirring shafts staggered. The inclined arrangement of the three stirring shafts, combined with the staggered feeding rods, expands the stirring range. The sliding sleeve facilitates adjustment of the feeding rods' positions on the stirring shafts. The tapered spiral blades have gradually decreasing outer diameters to fit the inverted conical structure of the conical discharge cylinder, providing a continuous pushing force on the material. An observation window is located on the side wall of the feeding box for easy monitoring of the material's condition within.

[0027] In summary, this utility model enables the continuous conveying and uniform discharge of fine powdery materials from the feed box through the conveying cylinder to the conical discharge cylinder, preventing material bridging and blockage, and meeting the requirements for continuous and uniform feeding of materials. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the mixing, conveying, and feeding device of this utility model;

[0029] Figure 2 This is a cross-sectional view of the mixing, conveying, and feeding device of this utility model;

[0030] Figure 3 This is a three-dimensional structural diagram of the feeding mechanism of the mixing, conveying, and feeding device of this utility model;

[0031] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0032] Figure 5 This is a three-dimensional structural diagram of the conical spiral assembly of the mixing, conveying, and feeding device of this utility model;

[0033] Figure 6 This is a three-dimensional structural diagram of the screw conveyor assembly of the mixing, conveying, and feeding device of this utility model. Detailed Implementation

[0034] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0035] like Figure 1-6 As shown, a mixing, conveying, and feeding device includes:

[0036] Feed box 1, the top of the feed box 1 is provided with a feed port;

[0037] Material feeding mechanism 2 is installed inside the feeding box 1. Material feeding mechanism 2 is suitable for stirring and agitating the material entering the feeding box 1.

[0038] The conveying cylinder 3 is located below the feeding box 1 and is connected to the feeding box 1;

[0039] The conical discharge cylinder 5 has an inverted conical structure, is located below the conveying cylinder 3 and is connected to the conveying cylinder 3, and has a discharge port at the bottom.

[0040] Screw conveyor assembly 4 is installed inside conveying cylinder 3. Screw conveyor assembly 4 is adapted to convey the material of feed box 1 to conical discharge cylinder 5 along the axial direction of conveying cylinder 3.

[0041] A conical spiral assembly is rotatably installed inside a conical discharge cylinder 5. The conical spiral assembly is provided with conical spiral blades 61. The conical spiral assembly is adapted to drive the conical spiral blades 61 to rotate inside the conical discharge cylinder 5, so as to spirally push the material to the discharge port and discharge it.

[0042] In this embodiment, as Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, after the material enters through the inlet of the feeding box 1, the feeding mechanism 2 stirs and agitates the material inside the feeding box 1, keeping the material loose and causing it to move downwards into the conveying cylinder 3 connected to the feeding box 1. The screw conveyor assembly 4 conveys the material axially to the conical discharge cylinder 5 connected to the conveying cylinder 3. The conical discharge cylinder 5 has an inverted conical structure and is located below the conveying cylinder 3. The conical spiral assembly is rotatably installed inside the conical discharge cylinder 5 and is equipped with conical spiral blades 61. The conical spiral assembly drives the conical spiral blades 61 to rotate inside the conical discharge cylinder 5, pushing the material spirally to the discharge port at the bottom of the conical discharge cylinder 5 and discharging it. This realizes the continuous conveying process of the material from feeding to discharging, solving the problem that fine and soft powdery materials are prone to arching and clogging, resulting in uneven and discontinuous feeding, and achieving the effect of uniform and continuous material discharge.

[0043] The materials in this embodiment can specifically be sugar powder, milk powder, and flour used in food processing.

[0044] Specifically, such as Figure 1-2 As shown, the feed box 1 has a frustum-shaped structure that is larger at the top and smaller at the bottom.

[0045] Specifically, such as Figure 2-3 As shown, the feeding mechanism 2 includes:

[0046] A stirring shaft 21 is rotatably installed inside the feed box 1.

[0047] The material feeding rod 22 is mounted on the stirring shaft 21, and the end of the material feeding rod 22 is provided with a material feeding blade 23.

[0048] Specifically, such as Figure 2-3 As shown, there are three stirring shafts 21. The three stirring shafts 21 are arranged in parallel and installed at intervals along the side wall of the feeding box 1.

[0049] Specifically, such as Figure 3 As shown, each stirring shaft 21 has three material feeding rods 22, and the three material feeding rods 22 on adjacent stirring shafts 21 are staggered.

[0050] Specifically, such as Figure 3-4 As shown, the material feeding rod 22 has a sliding sleeve 221 in the middle. The sliding sleeve 221 is slidably mounted on the stirring shaft 21. The sliding sleeve 221 has a through hole 224. The sliding sleeve 221 is adapted to pass through the through hole 224 and abut against the stirring shaft 21 through a fixing member, thereby fixing the material feeding rod 22 on the stirring shaft 21.

[0051] In this embodiment, as Figure 1-2As shown, the feed box 1 has a frustum-shaped structure that is larger at the top and smaller at the bottom. The inclined sidewalls of the frustum-shaped structure cause the material to concentrate towards the bottom of the feed box 1 under the action of gravity, reducing the adhesion and accumulation of material on the inner wall of the feed box 1.

[0052] The material feeding mechanism 2 includes three stirring shafts 21 and nine corresponding feeding rods 22. The stirring shafts 21 are rotatably mounted inside the feed box 1, and the feeding rods 22 are mounted on the stirring shafts 21. Each feeding rod 22 has feeding blades 23 at its end. When the stirring shafts 21 rotate, they drive the feeding rods 22 to rotate, and the feeding blades 23 agitate the material inside the feed box 1, preventing the material from bridging within the feed box 1. In some embodiments, the number of stirring shafts 21 is not limited to three and can be set according to the volume of the feed box 1 and the characteristics of the material.

[0053] Each stirring shaft 21 has three feeding rods 22. The feeding rods 22 on adjacent stirring shafts 21 are staggered to avoid interference between the feeding rods 22 on adjacent stirring shafts 21 during rotation. A sliding sleeve 221 is provided in the middle of the feeding rod 22. The sliding sleeve 221 is slidably mounted on the stirring shaft 21. The sliding sleeve 221 has a through hole 224. The sliding sleeve 221 is fixed to the stirring shaft 21 by a fixing member passing through the through hole 224. The sliding setting of the sliding sleeve 221 on the stirring shaft 21 allows adjustment of the installation position of the feeding rod 22 along the axial direction of the stirring shaft 21. After the fixing member passes through the through hole 224, it locks the sliding sleeve 221 in the target position on the stirring shaft 21.

[0054] Specifically, such as Figure 5 As shown, the conical spiral assembly also includes a central shaft 62, which is rotatably mounted on the conical discharge cylinder 5 along the central axis of the conical discharge cylinder 5;

[0055] The outer diameter of the conical helical blade 61 gradually decreases from top to bottom along the central axis 62, and the lower end of the conical helical blade 61 is fixedly connected to the lower end of the central axis 62.

[0056] In this embodiment, as Figure 1 , Figure 2 and Figure 5As shown, the conical spiral assembly also includes a central shaft 62, which is rotatably mounted on the conical discharge cylinder 5 along its central axis. The upper end of the central shaft 62 is connected to the screw conveyor assembly 4 to transmit power. When the central shaft 62 rotates, it drives the conical spiral blades 61 to rotate inside the conical discharge cylinder 5. The outer diameter of the conical spiral blades 61 gradually decreases from top to bottom along the central shaft 62. The lower end of the conical spiral blades 61 is fixedly connected to the lower end of the central shaft 62. The gradually decreasing outer diameter of the conical spiral blades 61 matches the inverted conical inner wall of the conical discharge cylinder 5. A gap is maintained between the conical spiral blades 61 and the inner wall of the conical discharge cylinder 5 to prevent material from accumulating between the conical spiral blades 61 and the inner wall of the conical discharge cylinder 5, thus avoiding blockage.

[0057] In this embodiment, the conical helical blade 61 can be made of food-grade plastic.

[0058] Specifically, the screw conveyor assembly 4 can be driven by a reducer and a motor to rotate the rotating shaft of the screw conveyor assembly 4, and the conical spiral assembly can also be driven by a reducer and a motor to rotate the central shaft 62.

[0059] Specifically, such as Figure 1 As shown, an observation window 12 is provided on the side wall of the feed box 1.

[0060] In this embodiment, as Figure 1 As shown, an observation window 12 is provided on the side wall of the feed box 1. The observation window 12 is made of transparent material, which allows observation of the material state inside the feed box 1 and the operating status of the feeding mechanism 2 from the outside of the feed box 1. In addition, an observation window is also provided on the outer wall of the pipe at the connection between the conveying cylinder 3 and the conical discharge cylinder 5.

[0061] Specifically, the mixing and conveying feeding device also includes a vibrator (not shown in the figure), which is installed on the outer surface of the side wall of the feed box 1.

[0062] In this embodiment, the mixing and feeding device further includes a vibrator, which is installed on the outer surface of the side wall of the feeding box 1. The vibration generated by the vibrator is transmitted to the material inside the feeding box 1 through the side wall of the feeding box 1, keeping the material in a loose state and preventing it from sticking together and forming clumps due to prolonged standing time. In this embodiment, the vibrator is an electromagnetic vibrator, which drives the vibrating body to generate reciprocating vibration through electromagnetic force. In other embodiments, the vibrator may also be a pneumatic vibrator or a hydraulic vibrator.

[0063] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mixing, conveying, and feeding device, characterized in that, include: Feed box (1), the top of the feed box (1) is provided with a feed port; Material feeding mechanism (2), the material feeding mechanism (2) is disposed in the feeding box (1), the material feeding mechanism (2) is adapted to stir and move the material entering the feeding box (1); A conveying cylinder (3) is disposed below the feeding box (1) and communicates with the feeding box (1); A conical discharge cylinder (5) is an inverted conical structure, located below the conveying cylinder (3) and connected to the conveying cylinder (3), with a discharge port at the bottom of the conical discharge cylinder (5); Screw conveying assembly (4), which is disposed inside the conveying cylinder (3), is adapted to convey the material of the feed box (1) along the axial direction of the conveying cylinder (3) to the conical discharge cylinder (5). A conical spiral assembly is rotatably installed inside the conical discharge cylinder (5). The conical spiral assembly is provided with conical spiral blades (61). The conical spiral assembly is adapted to drive the conical spiral blades (61) to rotate inside the conical discharge cylinder (5) and push the material spirally to the discharge port for discharge.

2. The mixing, conveying, and feeding device according to claim 1, characterized in that... : The feed box (1) has a frustum-shaped structure that is larger at the top and smaller at the bottom.

3. The mixing, conveying, and feeding device according to claim 1, characterized in that... : The feeding mechanism (2) includes: At least one stirring shaft (21) is rotatably mounted inside the feed box (1); At least one feeding rod (22) is mounted on the stirring shaft (21), and the end of the feeding rod (22) is provided with feeding blades (23).

4. The mixing, conveying, and feeding device according to claim 3, characterized in that... : The stirring shaft (21) is provided in three parts. The three stirring shafts (21) are arranged in parallel and installed at intervals along the side wall of the feeding box (1).

5. The mixing, conveying, and feeding device according to claim 3, characterized in that... : Multiple material feeding rods (22) are provided, and multiple material feeding rods (22) on adjacent stirring shafts (21) are staggered.

6. The mixing, conveying, and feeding device according to claim 3, characterized in that... : The feeding rod (22) is provided with a sliding sleeve (221) in the middle. The sliding sleeve (221) is slidably disposed on the stirring shaft (21). The sliding sleeve (221) is provided with a through hole (224). The sliding sleeve (221) is adapted to pass through the through hole (224) and abut against the stirring shaft (21) through a fixing member, thereby fixing the feeding rod (22) on the stirring shaft (21).

7. The mixing, conveying, and feeding device according to claim 1, characterized in that... : The conical spiral assembly also includes a central shaft (62), which is rotatably mounted on the conical discharge cylinder (5) along the central axis of the conical discharge cylinder (5); The outer diameter of the conical helical blade (61) gradually decreases from top to bottom along the central axis (62), and the lower end of the conical helical blade (61) is fixedly connected to the lower end of the central axis (62).

8. The mixing, conveying, and feeding device according to claim 1, characterized in that... : The side wall of the feed box (1) is provided with an observation window (12).

9. The mixing, conveying, and feeding device according to claim 1, characterized in that... : It also includes a vibrator, which is installed on the outer surface of the side wall of the feed box (1).

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