Closed material transferring device

Abstract

A closed material transferring device comprises a hollow cylindrical rotating core body, two positioning and supporting mechanisms, a driving motor, two side face shells and four sealing pieces. The hollow cylindrical rotating core body is transversely arranged between the positioning and supporting mechanisms at the two ends and is connected with the central shaft, and one end of the central shaft is connected with the driving motor; the upper end and the lower end of the hollow cylindrical rotating core body are open, and the interior of the hollow cylindrical rotating core body is divided into an upper cavity and a lower cavity through a partition device in the middle. The two side shells are arranged on the two sides of the hollow cylindrical rotating core body in a surrounding mode respectively; and a sealing piece is arranged at the end part of each side shell and keeps a sealing state with the arc-shaped outer surface of the hollow cylindrical rotating core body. The utility model provides a closed material transferring device with high sealing performance, which can be used in a food drying room to realize sulfur-free baking of food.

Description

Technical Field

[0001] This utility model belongs to the technical field of mechanical equipment components, specifically referring to a sealed material transfer device. Background Technology

[0002] Material drying equipment is widely used in the drying processes of industries such as chemical, food, pharmaceutical, and building materials. The material inlet and outlet of material drying equipment must be kept as sealed as possible to prevent hot air leakage. Most existing feeding and discharging mechanisms lack effective sealing.

[0003] Chinese invention patent 202010175860.4 discloses a material transfer device, which uses a rotating shaft mechanism inside a cylindrical shell to rotate and discharge materials. This creates a closed channel between the cylindrical shell and the blades of the rotating shaft mechanism, enabling material feeding or discharging. However, this design requires the blades to fit snugly against the inner wall of the cylindrical shell, necessitating the machining of a perfectly circular inner wall, which is very difficult. Even if this is achieved, the blades are prone to damaging the inner wall, and once damaged, they cannot be replaced.

[0004] Chinese utility model patent 202220949694.3 discloses a sealing material feeding device, comprising a cylindrical outer shell and a solid cylindrical inner core. During the continuous rotation of the solid cylindrical inner core, a closed container is formed, reducing hot air loss. However, for drying rooms for foods such as konjac chips, potato chips, and lotus root slices, it is not only necessary to prevent hot air loss, but more importantly, to prevent air from entering and causing food oxidation. This solution has the following drawbacks: 1. Due to processing technology and cost reasons, it is difficult to achieve a perfect fit between the inner and outer walls of the two cylinders. Even if a perfect fit is achieved, the friction between them will increase, leading to noise and overload during equipment operation. 2. This solution does not explain how to achieve a seal at the ends of the cylinders. The sealing performance of the sealing material feeding device disclosed in this patent document still does not meet the requirements of food drying rooms. Therefore, to prevent food from oxidizing and turning brown, these food drying rooms currently rely on sulfur fumigation. This results in excessive sulfur levels in the baked food or after it is ground into powder, filling the air with the smell of sulfur. This is not only unsafe and environmentally unfriendly, but also affects the taste of the food. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a sealed transfer device with high sealing performance, which can be used in food drying rooms to achieve sulfur-free baking of food.

[0006] This utility model is implemented as follows:

[0007] A sealed material transfer device includes: a hollow cylindrical rotating core, two positioning support mechanisms, a drive motor, two side shells, and four sealing elements;

[0008] The hollow cylindrical rotating core is horizontally placed between the positioning support mechanisms at both ends. The hollow cylindrical rotating core is connected to a central shaft, and one end of the central shaft is connected to the drive motor. The hollow cylindrical rotating core is open at the top and bottom, and the interior of the hollow cylindrical rotating core is divided into upper and lower chambers by a partition device in the middle.

[0009] Each of the positioning support mechanisms includes: a positioning plate and a support plate; the positioning plate has a positioning hole at its center that matches the outer diameter of the hollow cylindrical rotating core; the support plate has a central hole at its center, and a shaft sealing mechanism supports and positions the central shaft.

[0010] The two side shells are respectively arranged around the two sides of the hollow cylindrical rotating core;

[0011] Each of the side shells is provided with a sealing element at one end, which keeps the sealing element in a sealed state with the arc-shaped outer surface of the hollow cylindrical rotating core;

[0012] The hollow cylindrical rotating core rotates within the side shell driven by the central shaft; when the hollow cylindrical rotating core rotates to the point where its opening faces upward, the material enters the interior of the hollow cylindrical rotating core through the opening; when the hollow cylindrical rotating core rotates to the point where its opening faces downward, the material falls out.

[0013] The sealing elements at the ends of the side shell are respectively disposed on both sides of the upper opening and the lower opening of the hollow cylindrical rotating core, so that when the hollow cylindrical rotating core rotates to any angle, at least one of the sealing elements on both sides remains sealed to the hollow cylindrical rotating core, thereby blocking the airflow.

[0014] Furthermore, each of the seals has at least one side facing the outer surface of the hollow cylindrical rotating core that is in line contact with and tangent to the arcuate outer surface of the hollow cylindrical rotating core.

[0015] Furthermore, each of the seals has a sealing strip on at least one side facing the outer surface of the hollow cylindrical rotating core. The sealing strip is in close contact with the arc-shaped outer surface of the hollow cylindrical rotating core to maintain a sealed state.

[0016] Furthermore, the sealing element has an "n"-shaped structure. The two side plates of the "n"-shaped structure are perpendicular to the outer surface of the hollow cylindrical rotating core. The sealing strip is located at the ends of the two side plates and is in close contact with the arc-shaped outer surface of the hollow cylindrical rotating core to maintain a sealing state. The two ends of the "n"-shaped structure are provided with ears that are fixed to the positioning plates at both ends. The ears are provided with elongated holes to achieve fine adjustment in the direction of approaching and moving away from the outer surface of the hollow cylindrical rotating core.

[0017] Furthermore, the shaft sealing mechanism includes a bearing, an oil seal, and a bushing. The central shaft passes through the bearing, the oil seal is provided between the bearing and the bushing, and the bushing is fixed in the central hole of the support plate.

[0018] Furthermore, a sealing gasket is provided between the positioning plate and the support plate to prevent air leakage at both ends.

[0019] The advantages of this utility model are:

[0020] 1. In the sealing component of this utility model, the elastic sealing strip achieves the seal between the hollow cylindrical rotating core and the sealing side shell. In addition, the center of the base plate is tangent to the arc-shaped outer surface of the hollow cylindrical rotating core, achieving line contact. This makes it easier to achieve fit than the two arc surfaces of the prior art, and achieves sealing with less resistance, further enhancing the sealing performance.

[0021] 2. This utility model achieves shaft sealing at both ends of the central shaft of the hollow cylindrical rotating core, further ensuring the sealing of the ends of the sealed feeder.

[0022] 3. Easier to process, assemble, disassemble and replace.

[0023] 4. More precise positioning and higher accuracy. Attached Figure Description

[0024] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 This is a top view of the present invention.

[0027] Figure 3 yes Figure 2 AA sectional view.

[0028] Figure 4 This is an exploded structural diagram of the present invention.

[0029] Figure 5This is a schematic diagram of the sealing element structure in this utility model.

[0030] Figure 6 This is a schematic diagram of the usage state of this utility model.

[0031] Figure label:

[0032] 1-Hollow cylindrical rotating core, 2-Positioning support mechanism, 21-Positioning plate, 22-Support plate, Positioning hole 211, Center hole 221, 23-Shaft sealing mechanism, 231-Bearing, 232-Oil seal, 233-Shaft sleeve, 3-Drive motor, 4-Side housing, 5-Seal, 51-Side plate, 52-Mounting hole, 53-Ear, 54-Elongated hole, 6-Central shaft. Detailed Implementation

[0033] like Figures 1 to 4 As shown, a sealed transfer device includes: a hollow cylindrical rotating core 1, two positioning support mechanisms 2, a drive motor 3, two side shells 4, and four sealing elements 5.

[0034] A hollow cylindrical rotating core 1 is horizontally placed between the positioning support mechanisms 2 at both ends. The hollow cylindrical rotating core 1 is connected to a central shaft 6, and one end of the central shaft 6 is connected to a drive motor 3. The upper and lower ends of the hollow cylindrical rotating core 1 are open, and the interior of the hollow cylindrical rotating core 1 is divided into upper and lower chambers by a partition device (which can be a partition plate).

[0035] Each positioning support mechanism 2 includes: a positioning plate 21 and a support plate 22; the positioning plate 21 has a positioning hole 211 at its center that matches the outer diameter of the hollow cylindrical rotating core 1; the support plate 22 has a center hole 221 at its center, and one end connected to the drive motor 3 supports the positioning center shaft 6 through a shaft sealing mechanism 23.

[0036] The two outer shells 4 are respectively arranged on both sides of the hollow cylindrical rotating core 1;

[0037] Each side shell 4 has a sealing element 5 at its end, which keeps it sealed to the arc-shaped outer surface of the hollow cylindrical rotating core 1.

[0038] The hollow cylindrical rotating core 1 rotates within the side outer shell 4 driven by the central shaft 6. When the hollow cylindrical rotating core 1 rotates to the point where its opening faces upward, the material enters the interior of the hollow cylindrical rotating core 1 through the opening. When the hollow cylindrical rotating core 1 rotates to the point where its opening faces downward, the material falls out.

[0039] The sealing elements 5 at the ends of the side shell 4 are respectively set on both sides of the upper opening and the lower opening of the hollow cylindrical rotating core 1, so that when the hollow cylindrical rotating core 1 rotates to any angle, at least one sealing element 5 on both sides will keep the hollow cylindrical rotating core 1 sealed, thus blocking the air.

[0040] In this embodiment, the sealing element 5 has an "n" shaped structure. The two side plates 51 of the "n" shaped structure are perpendicular to the outer surface of the hollow cylindrical rotating core 1. The two side plates 51 can be: their bottoms are in line contact with the arc-shaped outer surface of the hollow cylindrical rotating core 1, or elastic sealing strips can be installed on their sides. Figure 5 The mounting hole 52 on the side of the side plate 51 is shown in the figure (the elastic sealing strip is not shown in the figure). The elastic sealing strip is closely attached to the arc-shaped outer surface of the hollow cylindrical rotating core and keeps it sealed. The two ends of the "n"-shaped structure are provided with ears 53, which are fixed on the positioning plates 21 at both ends. The ears 53 are provided with elongated holes 54, which can be used for fine adjustment in the direction of approaching and moving away from the outer surface of the hollow cylindrical rotating core 1.

[0041] The shaft sealing mechanism 23 includes a bearing 231, an oil seal 232, and a bushing 233. The central shaft 6 passes through the bearing 231. The oil seal 232 is provided between the bearing 231 and the bushing 233. The bushing 233 is fixed in the central hole 221 of the support plate 22. A sealing gasket 24 is also provided between the positioning plate 21 and the support plate 22 to prevent air leakage at both ends.

[0042] like Figure 6 The diagram shown is a schematic representation of the present invention used at the upper feed inlet of a drying oven.

[0043] In this invention, the elastic sealing strip in the sealing element 5 achieves a seal between the hollow cylindrical rotating core 1 and the side outer shell 4. Furthermore, the bottom is tangent to the arc-shaped outer surface of the hollow cylindrical rotating core, achieving line contact. This makes it easier to achieve a proper fit compared to the two-arc surface fit in existing technologies, and achieves a seal with less resistance, further enhancing the sealing performance. The shaft sealing mechanism 23 of this invention achieves shaft sealing of the central shafts 6 at both ends of the hollow cylindrical rotating core 1, further ensuring the sealing of the ends of the sealed transfer device. This invention is easier to process, assemble, disassemble, and replace, and offers more precise positioning and higher accuracy.

[0044] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A sealed transfer device, characterized in that: include: A hollow cylindrical rotating core, two positioning support mechanisms, a drive motor, two side shells, and four seals; The hollow cylindrical rotating core is horizontally placed between the positioning support mechanisms at both ends. The hollow cylindrical rotating core is connected to a central shaft, and one end of the central shaft is connected to the drive motor. The hollow cylindrical rotating core is open at the top and bottom, and the interior of the hollow cylindrical rotating core is divided into upper and lower chambers by a partition device in the middle. Each of the positioning support mechanisms includes: a positioning plate and a support plate; the positioning plate has a positioning hole at its center that matches the outer diameter of the hollow cylindrical rotating core; the support plate has a central hole at its center, and a shaft sealing mechanism supports and positions the central shaft. The two side shells are respectively arranged around the two sides of the hollow cylindrical rotating core; Each of the side shells is provided with a sealing element at one end, which keeps the sealing element in a sealed state with the arc-shaped outer surface of the hollow cylindrical rotating core; The hollow cylindrical rotating core rotates within the side shell under the drive of the central shaft; When the hollow cylindrical rotating core rotates to the point where its opening faces upward, the material enters the interior of the hollow cylindrical rotating core through the opening; when the hollow cylindrical rotating core rotates to the point where its opening faces downward, the material falls out. The sealing elements at the ends of the side shell are respectively disposed on both sides of the upper opening and the lower opening of the hollow cylindrical rotating core, so that when the hollow cylindrical rotating core rotates to any angle, at least one of the sealing elements on both sides remains sealed to the hollow cylindrical rotating core, thereby blocking the airflow.

2. The sealed transfer device as described in claim 1, characterized in that: Each of the seals has at least one side facing the outer surface of the hollow cylindrical rotating core that is in line contact with and tangent to the arcuate outer surface of the hollow cylindrical rotating core.

3. The sealed transfer device as described in claim 1, characterized in that: Each of the seals has a sealing strip on at least one side facing the outer surface of the hollow cylindrical rotating core. The sealing strip is in close contact with the arc-shaped outer surface of the hollow cylindrical rotating core to maintain a sealed state.

4. A sealed transfer device as described in claim 3, characterized in that: The sealing element has an "n"-shaped structure. The two side plates of the "n"-shaped structure are perpendicular to the outer surface of the hollow cylindrical rotating core. The sealing strip is located at the ends of the two side plates and is in close contact with the arc-shaped outer surface of the hollow cylindrical rotating core to maintain a sealing state. The two ends of the "n"-shaped structure are provided with ears that are fixed to the positioning plates at both ends. The ears are provided with elongated holes to achieve fine adjustment in the direction of approaching and moving away from the outer surface of the hollow cylindrical rotating core.

5. A sealed transfer device as described in claim 1, characterized in that: The shaft sealing mechanism includes a bearing, an oil seal, and a bushing. The central shaft passes through the bearing, and the oil seal is provided between the bearing and the bushing. The bushing is fixed in the central hole of the support plate.

6. A sealed transfer device as described in claim 1, characterized in that: A sealing gasket is also provided between the positioning plate and the support plate to prevent air leakage at both ends.

Images