Batching device for gypsum board production

Abstract

The utility model belongs to the technical field of batching devices, and particularly relates to a batching device for gypsum board production, which comprises a batching tank provided with a mixing cavity, a feeding pipe and a discharging pipe which are connected with the mixing cavity are arranged on the batching tank, an inner gear ring is fixedly arranged at the top of the mixing cavity, and a main gear is arranged at the axis of the inner gear ring. A plurality of planetary gears are arranged between the main gear and the inner gear ring, a stirring shaft is arranged at the axis of the bottom of each planetary gear, a fixedly-connected rotating shaft is arranged at the axis of the main gear in a penetrating mode, and a rotationally-connected planetary support is arranged at the position, located above the main gear, of the rotating shaft; connecting ends rotationally connected with the planetary gears one by one are arranged on the planetary support, a spiral conveying shaft is arranged at the bottom end of the rotating shaft, a conveying cylinder matched with the spiral conveying shaft is erected at the bottom of the mixing cavity, and a driving mechanism for driving the rotating shaft to rotate is arranged on the batching tank. Compared with the prior art, the batching device can effectively improve the batching efficiency and the mixing quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of batching devices, and specifically relates to a batching device for gypsum board production. Background Technology

[0002] In the field of building materials manufacturing, gypsum board is a widely used lightweight board material, and the batching process in its production is crucial. The raw materials for gypsum board production typically include gypsum powder, additives, fiber materials, and other components. The precise proportioning and uniform mixing of these raw materials directly affect the physical properties and quality stability of the final product.

[0003] However, traditional batching equipment, such as mixing tanks and screw conveyors, while achieving preliminary mixing of raw materials to some extent, suffers from uneven vertical distribution of components due to differences in density, shape, and particle size. Heavier particles tend to settle at the bottom, while lighter particles rise to the top, resulting in uneven mixing caused by gravity stratification. To address this uneven mixing, especially when processing raw materials containing large particles or with significant differences in specific gravity, existing equipment can only improve the mixing effect by increasing mixing time and the number of mixing cycles. However, prolonged mixing not only increases energy consumption but may also damage the raw materials due to over-mixing, affecting the quality of the finished gypsum board.

[0004] In conclusion, designing a novel batching device that can effectively solve the problem of gravity stratification has broad market application prospects. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this utility model provides a batching device for gypsum board production to solve the aforementioned problems.

[0006] This utility model discloses a batching device for gypsum board production, comprising a batching tank with a mixing chamber, an inlet pipe and an outlet pipe connected to the mixing chamber, an internal gear ring fixedly mounted on the top of the mixing chamber, a main gear mounted at the axis of the internal gear ring, a plurality of planetary gears mounted between the main gear and the internal gear ring, a stirring shaft mounted at the bottom axis of each planetary gear, a fixedly connected rotating shaft passing through the axis of the main gear, a planetary support mounted on the rotating shaft above the main gear, a connecting end mounted on the planetary support and rotatably connected to each planetary gear, a spiral conveying shaft mounted at the bottom of the rotating shaft, a conveying cylinder cooperating with the spiral conveying shaft mounted at the bottom of the mixing chamber, and a drive mechanism for driving the rotating shaft to rotate on the batching tank.

[0007] Furthermore, each planetary gear has an internal spline groove at its shaft center, and the stirring shaft has an external spline corresponding to the internal spline groove. The planetary gear is slidably connected to the stirring shaft, and each connection end has a through hole that mates with the corresponding stirring shaft. A telescopic mechanism is provided between each stirring shaft and the corresponding planetary gear.

[0008] Furthermore, the telescopic mechanism includes a rotary joint, universal ball bearings, and a spreading spring. Each stirring shaft has a rotary joint at its top end, and a universal ball bearing at its top end. Each stirring shaft is fitted with a spreading spring, with its two ends abutting against the rotary joint and the planetary support, respectively. The top of the mixing tank is provided with a top cover, and an annular protruding end is provided below the top of the top cover. The radius of the protruding end is equal to the axial distance between the rotating shaft and the stirring shaft. The bottom end face of the protruding end is wavy and has ball bearing grooves corresponding to the universal ball bearings. The top cover and the tank body are connected by a first bolt.

[0009] Furthermore, the driving mechanism is a motor, and a fixing frame is provided on the motor. A second bolt is provided between the fixing frame and the top cover.

[0010] Furthermore, the discharge pipe is located at the bottom of the mixing tank and is coaxially arranged with the conveying cylinder, and a discharge valve is provided on the discharge pipe.

[0011] Furthermore, the bottom of the mixing tank is configured as a funnel shape extending towards the bottom of the conveying cylinder.

[0012] Furthermore, a conical guide shield is provided on the rotating shaft above the conveying cylinder.

[0013] Furthermore, a support base is provided at the bottom of the mixing tank, and a shock-absorbing pad is provided on the bottom surface of the support base.

[0014] Compared with existing technologies, this batching device achieves uniform mixing of raw materials and avoids gravity stratification through the cooperation of planetary gear transmission mechanism and stirring shaft, as well as the forward and reverse rotation function of screw conveyor shaft, effectively improving batching efficiency and mixing quality. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0016] Figure 2 for Figure 1 A magnified view of a local detail A;

[0017] Figure 3 This is a cross-sectional view of the top cover;

[0018] Figure 4This is a partial structural schematic diagram of the present invention.

[0019] In the diagram: 1. Batching tank; 2. Feed pipe; 3. Discharge pipe; 4. Internal gear ring; 5. Main gear; 6. Planetary gear; 7. Stirring shaft; 8. Rotating shaft; 9. Planetary support; 10. Connecting end; 11. Screw conveyor shaft; 12. Conveying cylinder; 13. Drive mechanism; 14. Rotary joint; 15. Universal ball bearing; 16. Spreading spring; 17. Top cover; 18. Extended end; 19. Ball bearing groove; 20. First bolt; 21. Fixing frame; 22. Second bolt; 23. Discharge valve; 24. Conical guide shroud; 25. Support base. Detailed Implementation

[0020] To better understand this utility model, the following is in conjunction with... Figures 1 to 4 The embodiments of this utility model will be explained in detail below.

[0021] It should be noted that the directions "front, back, left, right, up, down" mentioned in the text are all relative to the direction of the text. Figure 1 The directions are based on "front, back, left, right, up, and down". This utility model discloses a batching device for gypsum board production, comprising a batching tank 1 with a mixing chamber. The tank body is equipped with an inlet pipe 2 and an outlet pipe 3 communicating with the mixing chamber, used for inputting raw materials and outputting the mixed material, respectively. An internal gear ring 4 is fixedly installed at the top of the mixing chamber. A main gear 5 is located at the center of the internal gear ring 4. Multiple planetary gears 6 are distributed between the main gear 5 and the internal gear ring 4, forming a planetary gear transmission mechanism with the internal gear ring 4 and the main gear 5. A stirring shaft 7 is connected to the bottom of each planetary gear 6, and these stirring shafts 7 are used to stir the raw materials within the mixing chamber.

[0022] A fixedly connected rotating shaft 8 passes through the center of the main gear 5. A planetary support 9 is provided above the main gear 5 on the rotating shaft 8. The planetary support 9 is provided with connecting ends 10 that are rotatably connected to the planetary gears 6. These connecting ends 10 are used to support and rotate the planetary gears 6. A drive mechanism 13 is provided on the mixing tank 1 to drive the rotating shaft 8 to rotate. A coaxial screw conveyor shaft 11 is fixedly provided at the bottom end of the rotating shaft 8. At the same time, a conveying cylinder 12 that cooperates with the screw conveyor shaft 11 is provided at the bottom of the mixing chamber. The bottom end of the conveying cylinder 12 is not directly connected to the inner wall of the mixing chamber. It is connected by several supports so that the bottom and top ports of the conveying cylinder 12 remain open.

[0023] To optimize the mixing effect, each planetary gear 6 has an internal spline groove at its shaft center, and the mixing shaft 7 has an external spline that matches the internal spline groove, thus forming a sliding connection between the planetary gear 6 and the mixing shaft 7. Each connection end 10 has a through hole that mates with the corresponding mixing shaft 7. A telescopic mechanism is also provided between the mixing shaft 7 and the planetary gear 6 to adjust the length of the mixing shaft 7, thereby achieving uniform mixing of raw materials at different heights.

[0024] The telescopic mechanism includes a rotary joint 14, universal ball bearings 15, and a spreading spring 16. The rotary joint 14 is located at the top of the stirring shaft 7, and the universal ball bearings 15 are mounted at the top of the rotary joint 14. A spreading spring 16 is fitted onto the stirring shaft 7, with its two ends abutting against the rotary joint 14 and the planetary support 9, respectively. The top of the mixing tank 1 is provided with a top cover 17, and below the top cover 17 is an annular protruding end 18. The radius of the protruding end 18 is equal to the axial distance between the rotating shaft 8 and the stirring shaft 7. The bottom end face of the protruding end 18 is wavy and has ball bearing grooves 19 that match the universal ball bearings 15, used to guide the movement trajectory of the stirring shaft 7 during stirring.

[0025] The drive mechanism 13 preferably uses a motor capable of both forward and reverse rotation; the motor is equipped with a mounting bracket 21, which is connected to the top cover 17 by bolts. The motor drives the rotating shaft 8 to rotate, thereby driving the transmission mechanism of the main gear 5 and planetary gear 6. During rotation, the planetary gear 6 drives the stirring shaft 7 to stir the raw materials in the mixing chamber. At the same time, the expansion spring 16 and the universal ball bearing 15 in the telescopic mechanism, in conjunction with the wave-shaped extension end 18, allow the stirring shaft 7 to float up and down and rotate during the stirring process, thereby achieving uniform stirring of raw materials at different heights.

[0026] The discharge pipe 3 is located at the bottom of the batching tank 1 and is coaxially arranged with the conveying cylinder 12. The discharge pipe 3 is equipped with a discharge valve 23 to control the output of raw materials.

[0027] When the screw conveyor rotates forward, its function is to work with the conveying cylinder 12 to continuously transport the material from the bottom upward, allowing this material from the bottom to return to the top, thus preventing heavy raw materials from remaining at the bottom. When the screw conveyor rotates in reverse, its function is to work with the discharge pipe 3 to discharge the material from the bottom of the mixing chamber.

[0028] The bottom of the mixing tank 1 is designed as a funnel shape extending towards the bottom of the conveying cylinder 12, which helps the raw materials to be discharged smoothly.

[0029] In order to disperse the bottom material conveyed by the screw conveyor shaft 11, a conical guide shroud is provided on the shaft 8, so that the conveyed material is dispersed in all directions through the conical guide shroud 24 and then falls to the top of the material.

[0030] In addition, the bottom of the mixing tank 1 is also provided with a support base 25, and the bottom surface of the support base 25 is equipped with a shock-absorbing pad to reduce the vibration and noise generated during the mixing process.

[0031] The usage and principle of this utility model:

[0032] When using the batching device of this invention, various raw materials are first fed into the mixing chamber through the feed pipe 2. Then, the motor is started, and the motor drives the rotating shaft 8 to rotate, which in turn drives the main gear 5 and planetary gear 6 transmission mechanism to work. During the rotation of the planetary gear 6, the stirring shaft 7 is driven to stir the raw materials in the mixing chamber. At the same time, the spreading spring 16 and the universal ball bearing 15 in the telescopic mechanism, together with the wave-shaped protruding end 18, allow the stirring shaft 7 to float up and down and rotate during the stirring process, thereby achieving uniform stirring of raw materials at different heights.

[0033] During the mixing process, the screw conveyor shaft 11 rotates clockwise, continuously conveying the material from the bottom upwards in conjunction with the conveying cylinder 12. The conveyed material diffuses outwards through the conical guide shroud 24 before falling to the top, preventing gravity stratification. When discharging at the end of the mixing process, the discharge valve 23 is opened and the motor is reversed, causing the rotating shaft 8 to drive the screw conveyor shaft 11 in reverse. This, in conjunction with the funnel-shaped batching tank 1, conveys the material from the bottom to the discharge pipe 3, through which the material is smoothly discharged. Throughout the process, the up-and-down movement and rotation of the mixing shaft 7, along with the conveying action of the screw conveyor shaft 11, effectively prevents gravity stratification of the raw materials, ensuring the uniformity and stability of the mixing.

[0034] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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 this utility model and simplifying the description, and do not 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 this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0035] The above are merely preferred embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.

Claims

1. A batching device for gypsum board production, comprising a batching tank (1) having a mixing chamber, wherein the batching tank (1) is provided with an inlet pipe (2) and an outlet pipe (3) connecting to the mixing chamber, characterized in that: An internal gear ring (4) is fixedly installed at the top of the mixing chamber. A main gear (5) is installed at the center of the internal gear ring (4). Several planetary gears (6) are installed between the main gear (5) and the internal gear ring (4). A stirring shaft (7) is installed at the bottom center of each planetary gear (6). A fixedly connected rotating shaft (8) is installed through the center of the main gear (5). A planetary support (9) is installed on the rotating shaft (8) above the main gear (5). A connecting end (10) is installed on the planetary support (9) and is rotatably connected to each of the planetary gears (6). A spiral conveying shaft (11) is installed at the bottom of the rotating shaft (8). A conveying cylinder (12) that cooperates with the spiral conveying shaft (11) is installed at the bottom of the mixing chamber. A driving mechanism (13) for driving the rotating shaft (8) to rotate is installed on the mixing tank (1).

2. The batching device for gypsum board production as described in claim 1, characterized in that: Each of the planetary gears (6) has an internal spline groove at its shaft center. The stirring shaft (7) has an external spline corresponding to the internal spline groove. The planetary gears (6) are slidably connected to the stirring shaft (7). Each of the connecting ends (10) has a through hole that mates with the corresponding stirring shaft (7). Each stirring shaft (7) and the corresponding planetary gear (6) are provided with a telescopic mechanism.

3. The batching device for gypsum board production as described in claim 2, characterized in that: The telescopic mechanism includes a rotary joint (14), a universal ball bearing (15), and a spreading spring (16). Each stirring shaft (7) has a rotary joint (14) at its top end, and a universal ball bearing (15) at its top end. Each stirring shaft (7) is fitted with a spreading spring (16), and the two ends of the spreading spring (16) abut against the rotary joint (14) and the planetary support (9), respectively. The top of the mixing tank (1) is provided with a top cover (17), and an annular protruding end (18) is provided below the top of the top cover (17). The radius of the protruding end (18) is equal to the axial distance between the rotating shaft (8) and the stirring shaft (7). The bottom end face of the protruding end (18) is wavy and is provided with a ball bearing groove (19) corresponding to the universal ball bearing (15). The top cover (17) and the tank body are connected by a first bolt (20).

4. The batching device for gypsum board production as described in claim 3, characterized in that: The drive mechanism (13) is a motor, and a fixing frame (21) is provided on the motor. A second bolt (22) is provided between the fixing frame (21) and the top cover (17).

5. The batching device for gypsum board production as described in claim 1, characterized in that: The discharge pipe (3) is located at the bottom of the mixing tank (1) and is coaxially arranged with the conveying cylinder (12). The discharge pipe (3) is equipped with a discharge valve (23).

6. The batching device for gypsum board production as described in claim 1, characterized in that: The bottom of the mixing tank (1) is configured as a funnel shape extending toward the bottom of the conveying cylinder (12).

7. The batching device for gypsum board production as described in claim 1, characterized in that: A conical guide shroud (24) is provided on the rotating shaft (8) above the conveying cylinder (12).

8. The batching device for gypsum board production as described in claim 1, characterized in that: The bottom of the mixing tank (1) is provided with a support base (25), and the bottom surface of the support base (25) is provided with a shock-absorbing pad.

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