Conveying device for glass fibers

Abstract

The utility model relates to the technical field of fiber conveying, and discloses a conveying device for glass fibers, which comprises a double-screw feeding machine and a scattering mechanism positioned at the feeding end of the double-screw feeding machine, and the scattering mechanism is communicated with the double-screw feeding machine. The scattering mechanism comprises a pneumatic scattering unit and a rotary scattering unit which are sequentially arranged from top to bottom and communicate with each other, the pneumatic scattering unit comprises a first hopper, the rotary scattering unit comprises a second hopper, a scattering ball is arranged in the first hopper, the interior of the scattering ball is hollow to form a containing cavity, and a plurality of air holes are evenly distributed in the peripheral side of the scattering ball; the top point of the scattering ball is communicated with an air inlet pipe, the air inlet pipe extends upwards to penetrate through the cover plate and is communicated with an air blower on the cover plate, air is blown into the containing cavity through the air inlet pipe, the glass fibers fly away in the containing cavity under the action of wind power, the glass fibers can be scattered, and impurities and water on the surfaces of the glass fibers can be removed.

Description

Technical Field

[0001] This utility model belongs to the field of fiber conveying technology, and specifically relates to a conveying device for glass fibers. Background Technology

[0002] Glass fiber is an inorganic non-metallic fiber material made from glass. It has the characteristics of being lightweight, high-strength, corrosion-resistant, and insulating, and is widely used in composite materials, construction, electronics, aerospace and other fields.

[0003] In the production process, twin-screw conveyors are often used to add glass fibers. These conveyors mainly consist of two coaxially rotating screws that, through rotation and spiral grooves, propel the material into downstream processing equipment. Existing technologies often present the following technical problems: 1. The glass fibers are not broken up before entering the twin-screw conveyor, remaining clump-like after conveying and unable to mix evenly with other materials, thus affecting the quality and performance of the subsequent products; 2. The screw threads easily stretch the glass fibers, causing excessive deformation and weakened performance, failing to meet usage requirements. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide a conveying device for glass fibers, so as to solve the technical problem that glass fibers lack a dispersing treatment before entering the twin-screw conveyor in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A conveying device for glass fiber includes a twin-screw feeder and a dispersing mechanism located at the feed end of the twin-screw feeder. The dispersing mechanism is connected to the twin-screw feeder. The dispersing mechanism includes a pneumatic dispersing unit and a rotary dispersing unit arranged sequentially from top to bottom and connected to each other. The pneumatic dispersing unit includes a first hopper, and the rotary dispersing unit includes a second hopper. A cover plate is provided at the top opening of the first hopper. A dispersing ball is provided inside the first hopper. The dispersing ball is hollow inside to form a receiving cavity. A plurality of air holes are evenly distributed on the periphery of the dispersing ball. An air inlet pipe is connected to the top of the dispersing ball. The air inlet pipe extends upward, penetrates the cover plate, and is connected to a blower on the cover plate. A fiber feeding pipe is also connected to the top of the dispersing ball.

[0007] Furthermore, a filling block is formed at the bottom of the receiving cavity, which fills the arc-shaped bottom surface and forms a flat surface;

[0008] Furthermore, the fiber dispensing tube is located on the side of the air inlet pipe, and extends upward through the cover plate and protrudes outward;

[0009] Further, the opposite two side walls of the second hopper are rotatably connected with rotating shafts, the rotating shafts are just below the discharge port of the first hopper, and a plurality of scattering rods are distributed on the side surface of the rotating shafts in a staggered manner and are used for further scattering the glass fibers scattered in the second hopper;

[0010] Further, the screw thread part of the screw rod is an elastic screw thread, and the elastic screw thread is made of rubber material;

[0011] Further, the first hopper is in the shape of an inverted circular table, the second hopper is in the shape of a cuboid, the bottom end of the first hopper is connected with the top end of the second hopper in a communication mode, the junction of the first hopper and the second hopper is sealed, and the bottom end of the second hopper is connected with the feeding end of the double-screw feeding machine in a communication mode.

[0012] The beneficial effects of the utility model lie in:

[0013] (1) Compared with the prior art, the glass fibers are scattered in the containing cavity under the action of the air blowing of the air inlet pipe, the glass fibers can be scattered, and the impurities and moisture on the surface of the glass fibers can be removed; the glass fibers scattered into the second hopper are further scattered by the scattering rods, so that the glass fibers entering the double-screw feeding machine have a high dispersion degree, thereby effectively preventing the phenomenon of clumping in the conveying process;

[0014] (2) Even if the glass fibers are clamped in the meshing position of the elastic screw thread, the part of the elastic screw thread at the meshing position will be deformed under the reaction force of the glass fibers in the rotating process, so that the glass fibers at the meshing position of the screw thread are separated, and the phenomenon of obvious tensile deformation or even fracture damage of the glass fibers caused by excessive stress is effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to make the purpose, technical scheme and beneficial effects of the utility model more clear, the utility model provides the following drawings for description:

[0016] Figure 1 It is the overall schematic view of the glass fiber conveying device in the utility model embodiment one;

[0017] Figure 2 It is the internal structure schematic view of the double-screw feeding machine in the utility model embodiment one;

[0018] Figure 3 It is Figure 2 the enlarged view of A1 in the utility model embodiment one;

[0019] Figure 4 It is the schematic view of the scattering mechanism in the utility model embodiment one;

[0020] Figure 5 It is the sectional view of the scattering mechanism in the utility model embodiment one;

[0021] Figure 6 For Figure 5 Enlarged view at A2 in Fig.

[0022] The reference signs in the drawings are as follows:

[0023] Double screw feeder 1, casing 101, conveying groove 102, screw 103, first motor 104, driving gear 105, driven gear 106, elastic screw thread 107, dispersing mechanism 2, first hopper 201, second hopper 202, cover plate 203, sealing plate 204, pneumatic dispersing unit 3, dispersing ball 301, air hole 302, filling block 303, air inlet pipe 304, air blower 305, fiber feeding pipe 306, containing cavity 307, rotary dispersing unit 4, rotating shaft 401, dispersing rod 402, second motor 403, belt 404. DETAILED DESCRIPTION

[0024] Example one, as shown in Figures 1-6 .

[0025] A conveying device for glass fibers, comprising a double screw feeder 1 and a dispersing mechanism 2 located at the feeding end of the double screw feeder 1, the dispersing mechanism 2 being in communication with the double screw feeder 1, the dispersing mechanism 2 comprising a pneumatic dispersing unit 3 and a rotary dispersing unit 4 arranged in sequence from top to bottom and in communication with each other.

[0026] As shown in Figure 1 , Figure 2 , the double screw feeder 1 comprises a cuboid casing 101, a conveying groove 102 is opened in the casing 101, two parallel screws 103 are arranged in the conveying groove, and the two screws 103 are synchronously rotated through a driving gear 105 and a driven gear 106, wherein the screw 103 where the driving gear 105 is located is provided with a first motor 104 for driving, and the material is continuously and stably conveyed from the feeding end to the discharging end through the rotation of the screw 103. Since the double screw feeder 1 is prior art, the specific structure and connection mode of the related parts are not described in detail.

[0027] However, in actual use, the screw threads of the two screws 103 are close to each other and form a screw thread meshing part. Since the diameter of the glass fiber is generally micron level, the cross-sectional size is extremely small, which causes the glass fiber to be easily stuck in the screw thread meshing part. With the rotation of the screw, the glass fiber in the screw thread meshing part is stretched, that is, a large deformation occurs in the axial and radial directions, and even a fracture phenomenon occurs, which causes part of the glass fiber to not meet the normal requirements, ultimately affecting the subsequent finished product.

[0028] Based on this, in the present embodiment, the screw thread part of the existing screw 103 is replaced by an elastic screw thread 107, as shown in Figure 3As shown, the elastic screw thread 107 is made of rubber material and is glued and fixed with the screw rod 103. By using the elastic screw thread 107, even if the screw thread engagement is clamped with the glass fiber, in the rotation process, the part of the elastic screw thread 107 at the place is deformed by the reaction force of the glass fiber, so that the glass fiber at the screw thread engagement is separated, effectively preventing the glass fiber from being stretched and even broken due to excessive force.

[0029] As shown in the figure, Figures 4-6 As shown, the pneumatic scattering unit 3 includes a first hopper 201, and the rotary scattering unit 4 includes a second hopper 202, wherein the first hopper 201 is in the shape of an inverted round table, the second hopper 202 is in the shape of a rectangular parallelepiped, the bottom end of the first hopper 201 is connected with the top end of the second hopper 202, and the junction of the first hopper 201 and the second hopper 202 is sealed by a sealing plate 204, and the bottom end of the second hopper 202 is connected with the feeding end of the double-screw feeder 1. Specifically, the top of the machine shell 101 is provided with a feeder feeding port, the opening size of the second hopper 202 is consistent with the size of the feeder feeding port, and the two are connected in communication, and the bottom edge of the second hopper 202 is welded and fixed with the machine shell 101.

[0030] The top opening of the first hopper 201 is provided with a cover plate 203, and the junction thereof is fixed by screws. The first hopper 201 is provided with a scattering ball 301, which is located directly below the cover plate 203 and has a spacing with the cover plate 203. The scattering ball 301 is hollow inside to form a containing cavity 307, and the bottom of the containing cavity 307 is provided with a filling block 303. The arc-shaped bottom surface of the filling block 303 is filled to form a flat surface to prevent the glass fibers from gathering on the arc-shaped bottom surface. The thickness of the filling block 303 is less than the inner diameter of the containing cavity 307. In this embodiment, the thickness of the filling block 303 is only one tenth of the inner diameter of the containing cavity 307.

[0031] The scattering ball 301 is provided with a plurality of air holes 302 uniformly distributed on the side. The diameter of the air hole 302 is greater than the diameter of the glass fiber. The top of the scattering ball 301 is connected with a vertical air inlet pipe 304, which provides support for the scattering ball 301. The air inlet pipe 304 extends upward and penetrates the cover plate 203 and is connected with a blower 305 on the cover plate 203. The blower 305 is fixedly connected to the upper surface of the cover plate 203. The top of the scattering ball 301 is also connected with a fiber feeding pipe 306, which is located on the side of the air inlet pipe 304. The fiber feeding pipe 306 extends upward and penetrates the cover plate 203 and is exposed.

[0032] In use, first, glass fibers are added into the scattering ball 301 through the fiber adding pipe 306, and the glass fibers fall on the top plane of the filling block 303, then the air blower 305 is started to blow air into the containing cavity 307 through the air inlet pipe 304, under the action of the wind force, the glass fibers are scattered in the containing cavity 307, not only the glass fibers can be scattered, but also the impurities and moisture on the surface of the glass fibers can be removed, and the scattered glass fibers fall into the second hopper 202 through the air holes 302.

[0033] The two opposite side walls of the second hopper 202 are rotationally connected with rotation shafts 401, specifically, the rotation shafts 401 and the side walls of the second hopper 202 are connected through bearings, in the embodiment, the rotation shafts 401 are located at the middle positions in the height direction of the second hopper 202 and just below the discharge port of the first hopper 201, and the extension direction of the rotation shafts 401 is perpendicular to the extension direction of the screw 103. A plurality of scattering rods 402 are staggered distributed on the side surface of the rotation shaft 401, for further scattering the glass fibers scattered in the second hopper 202.

[0034] The end of one rotation shaft 401 is connected with a second motor 403, and the two are connected through a coupling, and the two rotation shafts 401 are connected through a belt 404 to realize power transmission.

[0035] In use, the second motor 403 is started to drive the rotation shaft 401 and the scattering rod 402 to rotate, and the glass fibers scattered in the second hopper 202 are further scattered through the scattering rod 402, so that the glass fibers entering the double screw feeder 1 have high dispersion degree, thereby effectively preventing the phenomenon of clumping in the conveying process.

[0036] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present application, and are not limited. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. A delivery device for glass fibers, characterized in that, The device comprises a double screw feeder and a dispersing mechanism at the feeding end of the double screw feeder, the dispersing mechanism is connected with the double screw feeder, the dispersing mechanism comprises a pneumatic dispersing unit and a rotary dispersing unit arranged in sequence from top to bottom and communicated with each other, the pneumatic dispersing unit comprises a first hopper, the rotary dispersing unit comprises a second hopper, a cover plate is arranged at the top opening of the first hopper, a dispersing ball is arranged in the first hopper, the dispersing ball is hollow inside to form a containing cavity, a plurality of air holes are uniformly distributed on the side of the dispersing ball, an air inlet pipe is communicated with the top of the dispersing ball, the air inlet pipe extends upward and penetrates through the cover plate and is communicated with a blower on the cover plate, and a fiber feeding pipe is further communicated with the top of the dispersing ball.

2. The delivery device for glass fibers according to claim 1, characterized in that The bottom of the containing cavity is formed with a filling block, the arc-shaped bottom surface is filled by the filling block to form a plane.

3. The delivery device for glass fibers according to claim 2, characterized in that The fiber feeding pipe is located at the side of the air inlet pipe, extends upward and penetrates through the cover plate and is exposed.

4. The delivery device for glass fibers according to claim 1 or 3, characterized in that The opposite two side walls of the second hopper are rotatably connected with shafts, the shafts are just below the discharge port of the first hopper, a plurality of dispersing rods are staggered distributed on the side of the shafts to further disperse the glass fibers falling in the second hopper.

5. The delivery device for glass fibers according to claim 4, characterized in that The thread part of the screw is an elastic thread, which is made of rubber material.

6. The delivery device for glass fibers according to claim 5, characterized in that The first hopper is in the shape of an inverted round table, the second hopper is in the shape of a cuboid, the bottom end of the first hopper is communicated with the top end of the second hopper, the junction of the first hopper and the second hopper is sealed, and the bottom end of the second hopper is communicated with the feeding end of the double screw feeder.

Images