A device for precisely metering glass fiber addition in gypsum board manufacturing

Abstract

The application discloses a glass fiber accurate metering adding device in gypsum board manufacturing, a first vibrating motor is installed on the outer side wall of a material falling hopper, the first vibrating motor is supported by a first support frame, a first grate plate is installed on the material falling end of the material falling hopper, a material receiving hopper is installed on the bottom of the material falling hopper through a flexible connection, a blowing pipe for blowing air into the material receiving hopper is installed on the outer side wall of the material receiving hopper, a transition cylinder is installed on the material discharging end of the material receiving hopper through a flexible connection, a pressure sensor is installed on the outer side wall of the transition cylinder, the pressure sensor is placed on a second support frame, a material discharging hopper is installed on the bottom of the transition cylinder through a flexible connection, a second vibrating motor is installed on the outer side wall of the material discharging hopper, and a second grate plate is further installed on the material discharging hopper. The application has the beneficial effects that the glass fiber can be blown away to avoid the adhesion of the glass fiber, the material falling of the glass fiber can be controlled, the accurate metering and adding of the glass fiber can be realized, and the quality of the gypsum board manufacturing is ensured.

Description

Technical Field

[0001] This invention relates to gypsum board production, and in particular to a device for precise metering and adding glass fiber in gypsum board manufacturing. Background Technology

[0002] In gypsum board production, evenly adding glass fiber is a crucial step. Evenly added glass fiber results in gypsum board with high longitudinal and transverse strength and high toughness. Unevenly added glass fiber leads to low strength and poor toughness. Traditional methods of adding glass fiber are too simplistic; manual or simple mechanical methods make it difficult to separate the fibers, causing them to clump together. This results in uneven mixing of the glass fiber with the gypsum slurry after mixing, severely affecting quality. Inconsistent manual addition can also cause serious board quality problems. Therefore, accurately measuring and evenly adding glass fiber is a significant challenge in gypsum board production. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for precise metering and adding glass fiber in the manufacture of gypsum board.

[0004] The objective of this invention is achieved through the following technical solution: a device for precise metering and adding glass fiber in gypsum board manufacturing, comprising a hopper, a first support frame, a second support frame, and a controller. A first vibrating motor is installed on the outer wall of the hopper, supported by the first support frame. A first grate is installed at the discharge end of the hopper. A receiving hopper is installed at the bottom of the hopper via a flexible connection. An air blowing pipe for blowing air into the receiving hopper is installed on the outer wall of the receiving hopper. A transition cylinder is installed at the discharge end of the receiving hopper via a flexible connection. A pressure sensor is installed on the outer wall of the transition cylinder and placed on the second support frame. A discharge hopper is installed at the bottom of the transition cylinder via a flexible connection. A second vibrating motor is installed on the outer wall of the discharge hopper. A second grate is also installed on the discharge hopper. The pressure sensor is signal-connected to the controller and transmits a pressure signal to the controller. The controller is signal-connected to both the first and second vibrating motors and controls their operation.

[0005] Optionally, the first grate plate has several strip grooves.

[0006] Optionally, the second grate plate has several strip grooves or several square holes.

[0007] Optionally, both the first and second grate plates are installed using a plug-in type, and each grate plate has a hand-held hole for easy insertion and removal.

[0008] Optionally, the receiving end of the receiving hopper is conical, and the axis of the air blowing pipe is perpendicular to the generatrix of the cone of the receiving hopper.

[0009] Optionally, the feed end of the discharge hopper is connected to the feed hopper.

[0010] Optionally, the feed end of the hopper is connected to the discharge port of the chopped block.

[0011] The present invention has the following advantages: the glass fiber precision metering and adding device of the present invention can blow away the glass fiber to avoid the glass fiber sticking together, and at the same time can control the drop of glass fiber, thereby achieving precise metering and adding of glass fiber, thus ensuring the quality of gypsum board manufacturing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the first grate plate; Figure 3 Schematic diagram of the second grate plate Figure 1 ; Figure 4 Schematic diagram of the second grate plate Figure 2 ; In the diagram, 1-feeding hopper, 2-first vibrating motor, 3-first grate, 4-receiving hopper, 5-air blowing pipe, 6-transfer cylinder, 7-pressure sensor, 8-second vibrating motor, 9-second grate, 10-discharge hopper, 11-short cutter, 12-feeding hopper, 13-first support frame, 14-second support frame. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0016] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this invention 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 invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] like Figure 1 As shown, a precise metering and adding device for glass fiber in gypsum board manufacturing includes a hopper 1, a first support frame 13, a second support frame 14, and a controller. A first vibration motor 2 is installed on the outer wall of the hopper 1, and the first vibration motor 2 is supported by the first support frame 13. A first grate plate 3 is installed at the discharge end of the hopper 1, and a receiving hopper 4 is installed at the bottom of the hopper 1 via a flexible connection. The vibration of the first vibration motor 2 causes the hopper 1 to vibrate, thereby facilitating the discharge of glass fiber. The first grate plate 3 also vibrates with the hopper 1, facilitating the drop of glass fiber from the grate plate 3. In this embodiment, the cross-section of the hopper 1 is waist-shaped, therefore the discharge area on the first grate plate 3 is also waist-shaped. Preferably, as shown... Figure 2As shown, the first grate 3 has several strip grooves arranged side by side at intervals. During vibration, the glass fibers on the first grate 3 fall from the strip grooves and into the receiving hopper 4. In this embodiment, the bottom of the discharge hopper 1 is connected to the receiving hopper 4 by a non-woven fabric. The non-woven fabric has a certain toughness and is not easily torn. However, the first vibration motor 2 will continuously pull the non-woven fabric during vibration. If the weight of the receiving hopper 4 is entirely supported by the non-woven fabric, the service life of the non-woven fabric at this point will be shortened during the vibration of the first vibration motor. Therefore, in this embodiment, a burr can be set at the top of the receiving hopper 4, and a screw is installed on the burr. The burr is then suspended on the first support frame 13. In this way, the weight of the receiving hopper 4 is supported by the first support frame 13. When selecting the size of the non-woven fabric, it is best if the non-woven fabric is just taut when the discharge hopper 1 is at the top.

[0020] In this embodiment, an air blowing pipe 5 is installed on the outer wall of the receiving hopper 4 to blow air into the receiving hopper 4. The receiving end of the receiving hopper 4 is conical, and the axis of the air blowing pipe 5 is perpendicular to the generatrix of the cone of the receiving hopper 4. Therefore, the air blown out from the air blowing pipe 5 blows obliquely upward. In this way, the glass fiber can slow down its falling speed under the action of the wind, and the glass fiber can also be blown apart under the action of the wind, thereby avoiding the glass fiber from sticking together, which facilitates the metering and control of glass fiber addition.

[0021] In this embodiment, a transition cylinder 6 is installed at the discharge end of the receiving hopper 4 via a flexible connection. This flexible connection is made of non-woven fabric. A pressure sensor 7 is installed on the outer wall of the transition cylinder 6, and the pressure sensor 7 is placed on the second support frame 14. Preferably, four radially arranged brackets are installed on the outer wall of the transition cylinder 6, and the four brackets are evenly distributed on the same circumference. Then, the pressure sensor 7 corresponding to the bracket is placed on the second support frame 14, and the four brackets are respectively installed on the corresponding pressure sensor 7. At this time, the weight of the transition cylinder 6 is supported by the pressure sensor 7. When the weight inside the transition cylinder 6 changes, it can be detected by the pressure sensor 7.

[0022] In this embodiment, a discharge hopper 10 is installed at the bottom of the transition cylinder 6 via a flexible connection. This flexible connection is also made of non-woven fabric. A second vibration motor 8 is installed on the outer wall of the discharge hopper 10, and a second grate 9 is also installed on the discharge hopper 10. The operation of the second vibration motor 8 causes the glass fibers on the second grate 9 to fall through their gaps and ultimately into the next process from the discharge port of the discharge hopper 10. In this embodiment, as... Figure 3 He Ru Figure 4As shown, the second grate 9 has several strip grooves or several square holes. The choice between strip grooves and square holes depends on the actual needs. In this embodiment, the weight of the second grate 9, the glass fiber on the second grate 9, the discharge hopper 10, the non-woven fabric and the transition cylinder 6 are all supported by the pressure sensor 7. Therefore, when the discharge hopper 10 discharges material, the pressure sensor 7 can directly detect it, thereby accurately controlling the amount of glass fiber added.

[0023] In this embodiment, the pressure sensor 7 is signal-connected to the controller, and the pressure sensor 7 transmits the pressure signal to the controller. The controller is signal-connected to the first vibration motor 2 and the second vibration motor 8 respectively, and controls the operation of the first vibration motor 2 and the second vibration motor 8 respectively. Preferably, the first vibration motor 2 and the second vibration motor 8 are both variable frequency motors. When the controller receives the pressure detection signal from the pressure sensor 7, it can control the operating frequency of the first vibration motor 2 and the second vibration motor 8, thereby controlling the rate at which the glass fiber falls from the first grate 3 and the rate at which the glass fiber falls from the second grate 9.

[0024] In this embodiment, both the first grate 3 and the second grate 9 are installed using a plug-in type. The plug-in type installation of the grate is existing technology and will not be described in detail here. Figure 2 , Figure 3 and Figure 4 As shown, both the first grate plate 3 and the second grate plate 9 are provided with hand-held holes for easy insertion and removal, thereby facilitating the insertion and removal of the first grate plate 3 and the second grate plate 9.

[0025] In this embodiment, the feeding end of the discharge hopper 1 is connected to the feeding hopper 12, and the cut glass fiber can be directly put into the feeding hopper 12. However, due to the diversity of raw materials, when there is no cut glass fiber, a chopped strand machine 11 for cutting glass fiber needs to be set above the discharge hopper 1. Therefore, in another embodiment, the feeding end of the discharge hopper 1 is connected to the discharge port of the chopped strand machine 11. The chopped strand machine 11 is a commercially available product, so the structure and working principle of the chopped strand machine 11 will not be described in detail.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for precise metering and adding glass fiber in gypsum board manufacturing, characterized in that: The device includes a hopper, a first support frame, a second support frame, and a controller. A first vibrating motor is mounted on the outer wall of the hopper, and the first vibrating motor is supported by the first support frame. A first grate is mounted on the discharge end of the hopper. A receiving hopper is mounted on the bottom of the hopper via a flexible connection. An air blowing pipe for blowing air into the receiving hopper is mounted on the outer wall of the receiving hopper. A transition cylinder is mounted on the discharge end of the receiving hopper via a flexible connection. A pressure sensor is mounted on the outer wall of the transition cylinder and is placed on the second support frame. A discharge hopper is mounted on the bottom of the transition cylinder via a flexible connection. A second vibrating motor is mounted on the outer wall of the discharge hopper. A second grate is also mounted on the discharge hopper. The pressure sensor is signal-connected to the controller and transmits a pressure signal to the controller. The controller is signal-connected to both the first and second vibrating motors and controls their operation.

2. The device for precise metering and adding glass fiber in gypsum board manufacturing according to claim 1, characterized in that: The first grate plate has several strip grooves.

3. The device for precise metering and adding glass fiber in gypsum board manufacturing according to claim 2, characterized in that: The second grate plate has several strip grooves or several square holes.

4. The device for precise metering and adding glass fiber in gypsum board manufacturing according to claim 1, characterized in that: Both the first and second grates are installed using a plug-in type, and each of the first and second grates has a hand-held hole for easy insertion and removal.

5. The device for precise metering and adding glass fiber in gypsum board manufacturing according to claim 1, characterized in that: The receiving end of the receiving hopper is conical, and the axis of the air blowing pipe is perpendicular to the generatrix of the cone of the receiving hopper.

6. A precise metering and adding device for glass fiber in gypsum board manufacturing according to any one of claims 1 to 5, characterized in that: The feed end of the discharge hopper is connected to the feed hopper.

7. The device for precise metering and adding glass fiber in gypsum board manufacturing according to claim 1, characterized in that: The feed end of the hopper is connected to the discharge port of the short cutter.

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