Glass fiber precision blanking device

Abstract

The application discloses a glass fiber precise discharging device, which comprises a hopper, a discharging hopper, a glass fiber cutting assembly, a material uniform assembly and a pneumatic shaker, the glass fiber cutting assembly is connected with the material uniform assembly through a transmission assembly, a cutting end is arranged on the glass fiber cutting assembly, the material uniform assembly is arranged at the bottom end of the glass fiber cutting assembly and is used for receiving and uniformly scattering the glass fiber cut by the glass fiber cutting assembly, the discharging hopper is arranged at the outlet end of the hopper and is used for plugging the outlet end of the hopper, ion fans are arranged on the two sides of the transmission assembly, and the execution part of the pneumatic shaker is connected with the hopper or the discharging hopper; the long glass fiber is cut by the glass fiber cutting device, the short glass fiber is uniformly scattered by the material uniform device, and the ion fans are used for static electricity removal; meanwhile, the pneumatic shaker is used for driving and controlling the discharging of the glass fiber in the hopper, and the discharging amount of the glass fiber is adjusted by adjusting the compressed air pressure of the pneumatic shaker.

Description

Technical Field

[0001] This invention relates to the field of gypsum board manufacturing technology, specifically to a precision glass fiber feeding device. Background Technology

[0002] Fiberglass is one of the raw materials for gypsum board preparation. In existing technology, fiberglass feeding equipment typically involves cutting rolled fiberglass on-site before adding it. This equipment mainly consists of a vibrating feeder and a motor conveyor belt. The fiberglass is fed from the vibrating feeder to the lower motor conveyor belt for feeding. However, the following problems exist in actual operation:

[0003] Firstly, the cut glass fibers tend to clump together and fall off the vibrating feeder, resulting in uneven discharge. During the tumbling process, glass fibers easily generate static electricity, which, when added to the vibrating feeder, adheres to the hopper wall, causing raw material accumulation and uneven discharge from the discharge port. This can range from minor issues like uneven fiber distribution in the finished product to serious disruptions to normal production, impacting both product quality and production efficiency.

[0004] Secondly, the amount of fiberglass fed needs to be measured. However, the amount of fiberglass fed is affected by two factors. One is that the material level in the hopper is not right during the vibrating feeding process, resulting in uneven feeding. The other is the rotation speed of the motor conveyor belt. Under the combined effect of these two factors, it is impossible to accurately control the amount of fiberglass fed. Summary of the Invention

[0005] The purpose of this invention is to provide a precise glass fiber feeding device to solve the technical problem that the existing technology still cannot solve the problem of uneven glass fiber distribution and inaccurate feeding and metering. Specifically, this invention provides the following technical solution:

[0006] A precision fiberglass feeding device includes a hopper, a feeding tray, a fiberglass cutting assembly, a material homogenizing assembly, and a pneumatic vibrator. The feeding tray is disposed at the outlet end of the hopper to seal the outlet end of the hopper. The fiberglass cutting assembly is disposed inside the hopper. The material homogenizing assembly is disposed on one side of the fiberglass cutting assembly. The pneumatic vibrator is disposed on the feeding tray or on the hopper.

[0007] in:

[0008] The hopper has a hollow interior. The fiberglass cutting assembly is located at the bottom of the hopper's inlet end. A drive motor for driving the fiberglass cutting assembly is located on one side of the hopper. The fiberglass cutting assembly is used to roll and cut the fiberglass. The fiberglass cutting assembly is provided with several cutting ends for cutting the fiberglass to a fixed length.

[0009] The fiberglass cutting assembly is connected to the material homogenizing assembly via a transmission assembly. The transmission assembly is used to ensure that the fiberglass cutting assembly and the material homogenizing assembly roll synchronously through belt pulley transmission. The material homogenizing assembly is located at the bottom of the fiberglass cutting assembly to receive the fiberglass cut by the fiberglass cutting assembly and evenly disperse it. Several ion fans are symmetrically arranged on both sides of the transmission assembly.

[0010] The actuator of the pneumatic vibrator is connected to the hopper or the discharge tray. The pneumatic vibrator is used to drive either the hopper or the discharge tray to vibrate so that a distance is created between them that allows the material to be ejected from the outlet end of the hopper.

[0011] Furthermore, the material homogenizing component includes two rotating bases arranged opposite each other on the inner wall of the hopper, and a drive roller is installed between any pair of the oppositely arranged rotating bases. The drive roller makes free circular motion around the center of the rotating base.

[0012] The drive roller is suspended horizontally inside the hopper. Both ends of the drive roller are movably connected to the rotating base via rotating shafts. The outer surface of the drive roller is provided with several mounting grooves, and the mounting grooves are provided with internal thread structures. The drive roller is connected to a dispersing rod through the mounting grooves.

[0013] Furthermore, the dispersing rod includes a first rod body with an external thread structure at one end, a second rod body connected to the other end of the first rod body, and the first rod body and the second rod body are integrally formed. A first included angle is provided between the first rod body and the second rod body. The straight line of the second rod body of all the dispersing rods on the same drive roller is in the same plane as the circumferential rotation of the first rod body.

[0014] Furthermore, the fiberglass cutting assembly includes a set of adjacent cutting rollers, each of which is equipped with a plurality of cutting blades. An anvil groove is provided between adjacent cutting blades on each cutting roller. When any cutting blade on a cutting roller rotates to the point closest to another cutting roller, it is directly facing the anvil groove on the other cutting roller. A gap is provided between the two cutting rollers to allow fibers to pass through and cut the fibers.

[0015] Furthermore, a transmission groove is provided on the rotating shaft, and the rotating shaft is connected to the transmission assembly through the transmission groove. A through hole is provided on one side of the hopper, and the cutting roller is connected to the actuator of the drive motor through the through hole. A transmission limiting structure is provided at one end of the cutting roller, and the transmission limiting structure is provided on one side of the through hole. The transmission assembly is used to drive the rotating shaft and ensure that the rotating shaft and the cutting roller rotate in the same direction.

[0016] Furthermore, the inlet end of the hopper is provided with a feed hopper, which has an inverted truncated pyramid structure. A transmission component is provided on the inclined surface of the feed hopper to transmit the glass fiber piled at the inlet end of the hopper to the glass fiber cutting component. The plane of the transmission part of the transmission component is in contact with the plane of the inclined surface of the feed hopper. The bottom outlet width of the feed hopper is equal to the sum of the widths of the adjacent cutting rollers.

[0017] Furthermore, the feeding hopper is a folding plate with a second included angle. The folding direction of the second included angle faces the hopper. The folding plate is fixedly connected to the hopper through a first connector. The folding plate is hinged to the first connector. As the folding plate rotates hingedly, any side of the folding direction of the folding plate can fit against the bottom or side of the bottom end of the hopper.

[0018] Furthermore, the feeding hopper is a folding plate with a second included angle. The folding direction of the second included angle faces the hopper. The folding plate is connected to a bracket via a second connector. The hopper is fixedly connected to the bracket via a third connector. The hopper is hinged to the third connector. As the hopper rotates hingedly, any side of the folding plate can fit against the bottom or side of the bottom end of the hopper.

[0019] Furthermore, the hopper has an inverted truncated pyramid structure, and a third included angle is provided between any inclined wall at the bottom of the hopper and the outlet end of the hopper, wherein the angle of the second included angle is greater than the angle of the third included angle.

[0020] Furthermore, an adsorption component is provided between the hopper and the discharge tray, the adsorption component being used to ensure that the discharge tray stably seals the outlet end of the hopper under natural conditions;

[0021] The adsorption assembly includes a first adsorption element disposed on the outside of the outlet end of the hopper. The first adsorption element has a ring structure. The discharge hopper is provided with a fixing groove for installing a second adsorption element. The thickness of the second adsorption element is equal to the depth of the fixing groove. The first adsorption element is directly opposite the second adsorption element.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] This invention uses a fiberglass cutting device to cut long fiberglass, a material homogenizing device to evenly disperse short fiberglass, and an ion blower to remove static electricity. At the same time, a pneumatic vibrator drives and controls the feeding of fiberglass into the hopper or feed hopper, and the feeding amount of fiberglass is adjusted by adjusting the compressed air pressure of the pneumatic vibrator. Attached Figure Description

[0024] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic cross-sectional view of the overall structure of Embodiment 1 of the present invention.

[0026] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention.

[0027] Figure 3 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention.

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of the hopper of the present invention.

[0029] Figure 5 This is a cross-sectional structural diagram of the fiberglass cutting device of the present invention.

[0030] Figure 6 This is a schematic cross-sectional view of the material lifting roller assembly of the present invention.

[0031] Figure 7 This is a schematic diagram of the cross-sectional structure of the disintegrating rod of the present invention.

[0032] Figure 8 This is a schematic cross-sectional view of the bottom sealing section of the hopper in Embodiment 1 of the present invention.

[0033] Figure 9 This is a schematic cross-sectional view of the bottom sealing section of the hopper in Embodiment 2 of the present invention.

[0034] The labels in the diagram represent the following:

[0035] 1-Hopper, 2-Discharge hopper, 3-Pneumatic vibrator, 4-Transmission assembly, 5-Drive motor, 6-Feed hopper, 7-Fiberglass cutting assembly, 8-Transmission assembly, 9-Material homogenization assembly, 10-Adsorption assembly, 11-Ionizing fan;

[0036] 21-Folding plate, 22-First connector, 23-Second connector;

[0037] 71-Cutting roller, 72-Cutting blade, 73-Anvil groove;

[0038] 91-Rotating base, 92-Drive roller, 93-Rotating shaft, 94-Mounting groove, 95-Disintegrating rod, 96-First rod body, 97-Second rod body;

[0039] 101-First adsorption element, 102-Fixing groove, 103-Second adsorption element. Detailed Implementation

[0040] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] like Figures 1 to 9 As shown, the present invention provides a precision glass fiber feeding device, including a hopper 1, a feeding tray 2, a glass fiber cutting component 7, a material uniformizing component 9, and a pneumatic vibrator 3. The feeding tray 2 is set at the outlet end of the hopper 1 to block the outlet end of the hopper 1. The glass fiber cutting component 7 is set inside the hopper 1. The material uniformizing component 9 is set on one side of the glass fiber cutting component 7. The pneumatic vibrator 3 is set on the feeding tray 2 or the hopper 1.

[0042] in:

[0043] The interior of the hopper 1 is a hollow space. The fiberglass cutting assembly 7 is located at the bottom of the inlet end of the hopper 1. A drive motor 5 for driving the fiberglass cutting assembly 7 is provided on one side of the hopper 1. The fiberglass cutting assembly 7 is used to cut the fiberglass by rolling. The fiberglass cutting assembly 7 is provided with several cutting ends for cutting the fiberglass to a fixed length.

[0044] The fiberglass cutting assembly 7 is connected to the material homogenizing assembly 9 through the transmission assembly 8. The transmission assembly 8 is used to ensure that the fiberglass cutting assembly 7 and the material homogenizing assembly 9 roll synchronously through the belt pulley transmission. The material homogenizing assembly 9 is set at the bottom of the fiberglass cutting assembly 7 to receive the fiberglass cut by the fiberglass cutting assembly 7 and evenly disperse it. Several ion fans 11 are symmetrically arranged on both sides of the transmission assembly 8.

[0045] The actuator of the pneumatic vibrator 3 is connected to either the hopper 1 or the feeding hopper 2. The pneumatic vibrator 3 is used to drive either the hopper 1 or the feeding hopper 2 to vibrate so that a distance is created between them that allows the material to be ejected from the outlet end of the hopper 1.

[0046] The detailed steps for cutting, breaking up, and feeding fiberglass are as follows:

[0047] After the rolled glass fiber or long glass fiber is added into the hopper 1, the actuator of the glass fiber cutting component 7 performs a rolling cutting process, and the rolled glass fiber or long glass fiber becomes short glass fiber of a fixed length after the cutting process.

[0048] Short glass fibers fall freely into the hollow space inside the hopper 1 and land on the material homogenizing component 9, which then lifts and disperses the short glass fibers.

[0049] During the process of being lifted and falling freely, the short glass fiber is subjected to the flowing gas of the ion fans 93 on both sides. The flowing gas carries the ion flow to destaticate the short glass fiber.

[0050] Adjusting the compressed air pressure of the input pneumatic vibrator 3 causes the hopper 1 or the feeding hopper 2 to vibrate, thereby changing the rotation amplitude and duration of the hopper 1 or the feeding hopper 2, so as to maintain the periodic discharge of the hopper 1 and adjust the amount of chopped glass fiber being fed.

[0051] The top of the hopper 1 is provided with a feed inlet, which is located directly above the fiberglass cutting component 7. The material uniform component 9 is located at the bottom of the fiberglass cutting component 7, and the discharge port is located directly below the material uniform component 9 at the bottom of the hopper 1.

[0052] The transmission component 8 is driven by a belt pulley. Both the material homogenizing component 9 and the fiberglass cutting component 7 operate in a shaft rotation mode. Under the action of the belt pulley, the fiberglass cutting component 7 and the material homogenizing component 9 operate synchronously.

[0053] The belt pulley drive is a reverse drive. The fiberglass cutting component 7 and the material homogenizing component 9 are symmetrically arranged along the central axis of the hopper 1. When the fiberglass cutting component 7 rotates clockwise or counterclockwise, the material homogenizing component 9 rotates counterclockwise or clockwise simultaneously.

[0054] The drive motor 5 drives the glass fiber cutting component 7 to roll and cut the glass fiber entering the hopper 1 towards the central axis of the hopper 1. At the same time, the transmission component 8 synchronously pulls the material uniform component 9 to roll and lift the short-cut glass fiber to break it up.

[0055] Throughout the process, hopper 1 is suspended in the air. The present invention controls the discharge amount at the outlet end of hopper 1 through discharge hopper 2, and the controllability allows the chopped glass fibers in hopper 1 to be released. The movement state of hopper 1 or discharge hopper 2 is changed by pneumatic vibrator 3.

[0056] When the pneumatic vibrator 3 is not activated, the hopper 1 or the feeding hopper 2 is in a natural suspended state. The actuator of the feeding hopper 2 blocks the outlet end of the hopper 1. At this time, without external interference, the hopper 1 and the feeding hopper 3 are in a static state.

[0057] When the pneumatic vibrator 3 is started, the actuator of the pneumatic vibrator 3 is connected to either the hopper 1 or the feeding hopper 2, so that it moves away from the other side of the hopper 1 or the feeding hopper 2, and the feeding hopper 2 moves away from the outlet end of the hopper 1. The short glass fibers in the hopper 1 fall freely from the outlet end of the hopper 1 under its own gravity to complete the quantitative feeding.

[0058] The degree of vibration of the pneumatic vibrator 3 is changed by adjusting the air pressure of the compressed air inside the pneumatic vibrator 3 to complete the feeding, and the feeding amount of chopped glass fiber is adjusted according to the time it takes for the feeding hopper 2 to move away from the discharge port.

[0059] In order to ensure that the material uniformity component 9 disperses the short glass fibers, the present invention provides a preferred embodiment in which the material uniformity component 9 includes two rotating bases 91 arranged opposite each other on the inner wall of the hopper 1, and a drive roller 92 is installed between any pair of oppositely arranged rotating bases 91. The drive roller 92 makes free circular motion around the center of the rotating base 91.

[0060] The drive roller 92 is suspended horizontally inside the hopper 1. Both ends of the drive roller 92 are movably connected to the rotating base 91 through the rotating shaft 93. Several mounting grooves 94 are provided on the outer surface of the drive roller 92. The mounting grooves 94 are provided with internal thread structures. The drive roller 92 is connected to the dispersing rod 95 through the mounting grooves 94.

[0061] The drive roller 92 rotates in a circular motion inside the hopper 1. The mounting slots 94 are distributed in a matrix structure on the outer surface of the drive roller 92. The mounting slots 94 in adjacent rows or columns are staggered. When any of the dispersing rods 95 is worn, the dispersing rod 95 can be removed from the drive roller 92 through the threaded structure to ensure convenient replacement of parts.

[0062] The disintegration rod 95 includes a first rod body 96 with an external thread structure at one end, and a second rod body 97 connected to the other end of the first rod body 96. The first rod body 96 and the second rod body 97 are integrally formed. A first included angle is provided between the first rod body 96 and the second rod body 97. The straight line of the second rod body 97 of all the disintegration rods 95 on the same drive roller 92 is in the same plane as the circumferential rotation of the first rod body 96.

[0063] A first included angle α is provided between the first rod 96 and the second rod 97. The first included angle α ranges from 0 to 360°, and the direction of the first included angle α of all the disintegrating rods 95 is the same as the circumferential rotation direction of the drive roller 92. The distance between adjacent mounting slots 94 is greater than the length of the second rod 97 to ensure that the disintegrating rod 95 is not affected by the adjacent disintegrating rod 95 when it is disassembled and replaced.

[0064] Based on the length of the cut short glass fibers, the size of the first included angle α is adjusted to change the parabola of the short fibers. As the length of the short glass fibers increases, the angle of the first included angle α is adjusted larger, and the arc of the parabola is smaller. As the length of the short glass fibers decreases, the angle of the first included angle α is adjusted smaller, and the arc of the parabola is larger. This ensures that short glass fibers of different lengths can be destaticated by the ion flow carried by the ion fan 93.

[0065] The fiberglass cutting assembly 7 includes a set of adjacent cutting rollers 71, each of which is equipped with a plurality of cutting blades 72. An anvil groove 73 is provided between adjacent cutting blades 72 on each cutting roller 71. When the cutting blade 72 on any one cutting roller 71 rotates to the point closest to another cutting roller 71, it is directly facing the anvil groove 73 on the other cutting roller 71. A gap is provided between the two cutting rollers 71 to allow fibers to pass through and cut the fibers.

[0066] All cutting blades 72 are oriented along the central axis of the cutting roller 71, and all anvil grooves 73 are oriented along the central axis of the cutting roller 71. The cutting blades 72 on adjacent cutting rollers 71 take turns cutting the rolled glass fiber and long glass fiber passing through the gap between the two cutting rollers 71. The circumferential distance between the anvil grooves 73 and the cutting blades 72 on adjacent cutting rollers 71 is the same, so that the length of the cut short glass fiber remains uniform.

[0067] The width of each cutting blade 72 is equal to the closest distance between the outer surfaces of adjacent cutting rollers 71, and the anvil groove 73 is provided with an arc structure with the arc direction being an inward arc, so that when the cutting blade 72 is facing the corresponding anvil groove 73, there is a gap between the cutting blade 72 and the anvil groove 73, that is, a gap is provided between the two cutting rollers 71 to allow fibers to pass through and cut the fibers.

[0068] A transmission groove is provided on the rotating shaft 93, and the rotating shaft 93 is connected to the transmission assembly 8 through the transmission groove. A through hole is provided on one side of the hopper 1, and the cutting roller 71 is connected to the actuator of the drive motor 5 through the through hole. A transmission limiting structure is provided at one end of the cutting roller 71. The transmission limiting structure is located on one side of the through hole. The transmission assembly 8 is used to drive the rotating shaft 93 and ensure that the rotating shaft 93 and the cutting roller 71 rotate in the same direction.

[0069] The transmission component 8 is usually a grooved transmission belt. The transmission belt is installed at one end of the rotating shaft 93 through the transmission groove and at one end of the cutting roller 71 through the transmission limiting structure. A belt pulley effect is formed between the rotating shaft 93, the transmission belt, and the cutting roller 71.

[0070] When two adjacent cutting rollers 71 rotate in a circular motion toward the gap between them, the rolled glass fiber and long glass fiber enter the cutting process. Through the belt pulley effect and reverse transmission, the rotating shafts 93 connected to the cutting rollers 71 rotate in the opposite direction.

[0071] The drive rollers 92 are respectively set directly below the corresponding cutting rollers 71. As the cutting rollers 71 rotate to cut the glass fiber, the falling short glass fibers enter the dispersing area of ​​the dispersing rods 95 connected to the drive rollers 92. The clumps of short glass fibers are hooked by the dispersing rods 95 and move in a circular motion with the drive rollers 92. After that, they are separated from the dispersing rods 95 and move in a parabolic motion. They are then destaticated in the execution area of ​​the ion fan 93 until they are evenly distributed at the bottom of the hopper 1 and can no longer be hooked by the dispersing rods 95.

[0072] To ensure that rolled glass fibers and long glass fibers can enter the cutting area after entering the feed inlet, the present invention provides a preferred solution: the inlet end of the hopper 1 is provided with a feed hopper 6, which has an inverted truncated pyramid structure. A transmission component 4 is provided on the inclined surface of the feed hopper 6 to transmit the glass fibers piled at the inlet end of the hopper 1 to the glass fiber cutting component 7. The plane of the transmission part of the transmission component 4 is in contact with the plane of the inclined surface of the feed hopper 6. The bottom outlet width of the feed hopper 6 is equal to the sum of the widths of the adjacent cutting rollers 71.

[0073] The transmission component 4 is embedded in the inner wall of the four sides of the feed hopper 6, and the inner wall of the feed hopper 6 is kept flat. The glass fiber is transported towards the glass fiber cutting component 7 under the friction of the inclined inner wall of the feed hopper and the transmission component 4.

[0074] Depending on the connection of the actuator of the pneumatic vibrator 3, the present invention has the following embodiments: Example

[0075] The feeding hopper 2 is a folding plate 21. The folding plate 21 is provided with a second included angle β. The angle range of the second included angle β is 0-360°. The folding direction of the second included angle β is towards the hopper 1. The folding plate 21 is fixedly connected to the hopper 1 through the first connecting member 22. The folding plate 21 is hinged to the first connecting member 22. As the folding plate 21 rotates hingedly, any side of the folding direction of the folding plate 21 can fit against the bottom or side of the bottom end of the hopper 1.

[0076] The actuator of the pneumatic vibrator 3 is connected to the feeding hopper 2. The first connecting part 22 is usually a hinge rod. The folding plate 21 is provided with mounting holes for the hinge rod to pass through. The two ends of the hinge rod are fixedly connected to the hopper 1 by fixing rods.

[0077] One side of the folding plate 21 is used to block the discharge port at the bottom of the hopper 1. The other side is equipped with a pneumatic vibrator 3 that drives the movement of the folding plate 21. The pneumatic vibrator 3 is located on the side of the panel away from the hopper 1. By adjusting the air pressure of the compressed air input to the pneumatic vibrator 3, the folding plate 21 is subjected to the impact force from the pneumatic vibrator 3 and moves, so that the folding plate 21 no longer blocks the discharge port 5. The amount of glass fiber fed is adjusted according to the different impact forces. Example

[0078] The feeding hopper 2 is a folding plate 21. The folding plate 21 is provided with a second included angle β. The angle range of the second included angle β is 0-360°. The folding direction of the second included angle β is towards the hopper 1. The folding plate 21 is connected to a bracket through a second connector 23. The hopper 1 is fixedly connected to the bracket through a third connector. The hopper 1 is hinged to the third connector. As the hopper 1 rotates hingedly, any side of the folding direction of the folding plate 21 can fit against the bottom or side of the bottom end of the hopper 1.

[0079] The actuator of the pneumatic vibrator 3 is connected to the hopper 1. The second connecting part 23 is a fixed rod. The folding plate 21 is mounted on the bracket 4 through the fixed rod and keeps it in a static and suspended state. The third connecting part is a hinge rod. The hopper 1 is mounted on the bracket 4 through the hinge rods on both sides and keeps it in a hinged connection. When it is not affected by external force, the hopper 1 is suspended in the center of the bracket 4 and keeps it in a static and suspended state.

[0080] The pneumatic vibrator 3 is located between the hopper 1 and the folding plate 21 and is installed on one side of the hopper 1. By adjusting the air pressure of the compressed air input to the pneumatic vibrator 3, the pneumatic vibrator 3 and the hopper 1 are connected as a whole. Therefore, the impact force of the pneumatic vibrator 3 acts on the folding plate 21, causing the hopper 1 to move away from the folding plate 21 under the reaction force, so that the folding plate 21 does not block the discharge port. The amount of glass fiber fed is adjusted according to the different impact forces.

[0081] Furthermore, the hopper 1 has an inverted truncated pyramid structure. A third included angle γ is provided between any inclined wall at the bottom of the hopper 1 and the outlet end of the hopper 1. The angle range of the third included angle γ is 0-360°, and the angle of the second included angle β is greater than the angle of the third included angle γ.

[0082] The difference between the second included angle β and the third included angle γ is the range of angles that the hopper 1 or the feeding hopper 2 can rotate. When the vibration intensity of the pneumatic vibrator 3 is adjusted to the maximum, the upper limit of the chopped glass fiber feeding amount is increased by changing the difference between the second included angle β and the third included angle γ.

[0083] An adsorption component 10 is provided between the hopper 1 and the discharge hopper 2. The adsorption component 10 is used to ensure that the discharge hopper 2 stably seals the outlet end of the hopper 1 under natural conditions.

[0084] The adsorption assembly 10 includes a first adsorption element 101 disposed on the outside of the outlet end of the hopper 1. The first adsorption element 101 has a ring structure. The feeding hopper 2 is provided with a fixing groove 102 for installing a second adsorption element 103. The thickness of the second adsorption element 103 is equal to the depth of the fixing groove 102. The first adsorption element 101 is directly opposite the second adsorption element 103.

[0085] The first adsorption element 101 and the second adsorption element 103 are typically magnetic blocks. Through magnetic attraction, the hopper 1 and the discharge hopper 2, which are respectively connected to the first adsorption element 101 and the second adsorption element 103, are connected to each other to ensure that the discharge hopper 2 blocks the outlet under natural conditions.

[0086] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A precision glass fiber feeding device, characterized in that, It includes a hopper (1), a feeding tray (2), a fiberglass cutting assembly (7), a material equalization assembly (9), and a pneumatic vibrator (3). The feeding tray (2) is located at the outlet end of the hopper (1) to block the outlet end of the hopper (1). The fiberglass cutting assembly (7) is located inside the hopper (1). The material equalization assembly (9) is located on one side of the fiberglass cutting assembly (7). The pneumatic vibrator (3) is located on the feeding tray (2) or the hopper (1). in: The hopper (1) has a hollow interior. The fiberglass cutting assembly (7) is located at the bottom of the inlet end of the hopper (1). A drive motor (5) for driving the fiberglass cutting assembly (7) is provided on one side of the hopper (1). The fiberglass cutting assembly (7) is used to cut the fiberglass by rolling. The fiberglass cutting assembly (7) is provided with several cutting ends for cutting the fiberglass to a fixed length. The fiberglass cutting assembly (7) is connected to the material homogenizing assembly (9) through the transmission assembly (8). The transmission assembly (8) is used to ensure that the fiberglass cutting assembly (7) and the material homogenizing assembly (9) rotate synchronously through the belt pulley transmission. The material homogenizing assembly (9) is set at the bottom end of the fiberglass cutting assembly (7) to receive the fiberglass cut by the fiberglass cutting assembly (7) and evenly disperse it. Several ion fans (11) are symmetrically arranged on both sides of the transmission assembly (8). The actuator of the pneumatic vibrator (3) is connected to the hopper (1) or the feeding hopper (2). The pneumatic vibrator (3) is used to drive either the hopper (1) or the feeding hopper (2) to vibrate so that a distance is generated between them that allows the material to be ejected from the outlet end of the hopper (1). The fiberglass cutting assembly (7) includes a set of adjacent cutting rollers (71), each of which is equipped with a plurality of cutting blades (72). An anvil groove (73) is provided between adjacent cutting blades (72) on each cutting roller (71). When any cutting blade (72) on a cutting roller (71) rotates to the point closest to another cutting roller (71), it is directly facing the anvil groove (73) on the other cutting roller (71). A gap is provided between the two cutting rollers (71) to allow fibers to pass through and cut the fibers. The hopper (1) is provided with a feed hopper (6) at its inlet end. The feed hopper (6) has an inverted truncated pyramid structure. A transmission component (4) is provided on the inclined surface of the feed hopper (6) to transmit the glass fiber piled at the inlet end of the hopper (1) to the glass fiber cutting component (7). The plane of the transmission part of the transmission component (4) is in contact with the plane of the inclined surface of the feed hopper (6). The bottom outlet width of the feed hopper (6) is equal to the sum of the widths of the adjacent cutting rollers (71). An adsorption component (10) is provided between the hopper (1) and the discharge tray (2). The adsorption component (10) is used to ensure that the discharge tray (2) firmly seals the outlet end of the hopper (1) under natural conditions. The adsorption assembly (10) includes a first adsorption element (101) disposed on the outside of the outlet end of the hopper (1). The first adsorption element (101) is a ring structure. The feeding hopper (2) is provided with a fixing groove (102) for installing a second adsorption element (103).

2. The fiberglass precision feeding device according to claim 1, characterized in that, The material uniform component (9) includes two rotating bases (91) arranged opposite each other on the inner wall of the hopper (1). A drive roller (92) is installed between any pair of the rotating bases (91) arranged opposite each other. The drive roller (92) makes free circular motion around the center of the rotating base (91). The drive roller (92) is suspended horizontally inside the hopper (1). Both ends of the drive roller (92) are movably connected to the rotating base (91) through the rotating shaft (93). The outer surface of the drive roller (92) is provided with a number of mounting grooves (94). The mounting grooves (94) are provided with internal thread structures. The drive roller (92) is connected to a dispersing rod (95) through the mounting grooves (94).

3. The fiberglass precision feeding device according to claim 2, characterized in that, The disintegrating rod (95) includes a first rod body (96) with an external thread structure at one end, and a second rod body (97) connected to the other end of the first rod body (96). The first rod body (96) and the second rod body (97) are integrally formed. A first included angle is provided between the first rod body (96) and the second rod body (97). The straight line of the second rod body (97) of all the disintegrating rods (95) on the same drive roller (92) is in the same plane as the circumferential rotation of the first rod body (96).

4. The fiberglass precision feeding device according to claim 2, characterized in that, The rotating shaft (93) is provided with a transmission groove, and the rotating shaft (93) is connected to the transmission assembly (8) through the transmission groove. A through hole is provided on one side of the hopper (1), and the cutting roller (71) is connected to the actuator of the drive motor (5) through the through hole. A transmission limiting structure is provided at one end of the cutting roller (71), and the transmission limiting structure is provided on one side of the through hole. The transmission assembly (8) is used to drive the rotating shaft (93) and ensure that the rotating shaft (93) and the cutting roller (71) rotate in the same direction.

5. The fiberglass precision feeding device according to claim 2, characterized in that, The feeding hopper (2) is a folding plate (21). The folding plate (21) is provided with a second included angle. The folding direction of the second included angle is towards the hopper (1). The folding plate (21) is fixedly connected to the hopper (1) through a first connecting member (22). The folding plate (21) is hinged to the first connecting member (22). As the folding plate (21) rotates hingedly, any side of the folding direction of the folding plate (21) can fit against the bottom or side of the bottom end of the hopper (1).

6. The fiberglass precision feeding device according to claim 2, characterized in that, The feeding hopper (2) is a folding plate (21). The folding plate (21) is provided with a second included angle. The folding direction of the second included angle is towards the hopper (1). The folding plate (21) is connected to a bracket through a second connector (23). The hopper (1) is fixedly connected to the bracket through a third connector. The hopper (1) is hinged to the third connector. As the hopper (1) rotates hingedly, any side of the folding direction of the folding plate (21) can fit against the bottom or side of the bottom end of the hopper (1).

7. A precision glass fiber feeding device according to claim 5 or 6, characterized in that, The hopper (1) has an inverted truncated pyramid structure. A third included angle is provided between any inclined wall at the bottom of the hopper (1) and the outlet end of the hopper (1). The angle of the second included angle is greater than the angle of the third included angle.

8. The fiberglass precision feeding device according to claim 7, characterized in that, The thickness of the second adsorption element (103) is equal to the depth of the fixing groove (102), and the first adsorption element (101) is directly opposite the second adsorption element (103).

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