Spiral feeding device for fiber density board production

Abstract

This utility model relates to the field of spiral feeding technology, and specifically discloses a spiral feeding device for fiber density board production, including a base plate, a support fixedly connected to the top of the base plate, a conveying cylinder fixedly connected to the top of the support, a feeding assembly connected to the top of the feeding pipe, a bottom fixedly connected to the top of the support, and an inner wall side fixedly connected to the side of the spiral device. Raw materials enter the interior of the feeding pipe through the feeding assembly, the feeding pipe holds the raw materials, and the fixed cylinder is fixed by the connecting support. Reverse blades are used to create a reverse pushing state with the spiral device, thereby increasing the internal material disorder and thus making the material more thoroughly mixed, thereby improving the mixing quality. This spiral feeding device for fiber density board production achieves the purpose of facilitating the cleaning of internal raw materials.

Description

Technical Field

[0001] This utility model relates to the field of spiral feeding technology, specifically a spiral feeding device for fiber density board production. Background Technology

[0002] Fiberboard (such as medium-density fiberboard (MDF) and high-density fiberboard (HDF)) is a type of engineered wood product made from wood fibers or other plant fibers, coated with synthetic resin, and pressed under heat and pressure. Its production process mainly includes fiber preparation, drying, gluing, lining, pre-pressing, hot pressing, and post-treatment. Between the gluing and lining processes, there is a crucial step: the stable, continuous, and controllable feeding of the moistened fiber material with applied adhesive (referred to as "glued fiber") into the lining machine. The stability and uniformity of this conveying process directly determine the uniformity of the subsequent paving and forming blanks, which in turn affects the density distribution, mechanical properties, and product quality of the final board. To ensure the stability of material flow, before the widespread application of screw feeders or in their early stages of development, the conveying of fiber materials mainly relied on the following methods, which were simple and easy to use. However, for lightweight and fluffy fibers, there were problems such as easy material flying, large conveying volume, poor precision control, and difficulty in achieving sealed conveying, leading to the release of volatile organic compounds (VOCs) from adhesives. Although the sealing performance was good, it was easy to cause compression and clumping of fiber materials, resulting in greater wear and low metering accuracy. Relying on the material's own gravity to fall, it was very easy for "bridging" or "rat holes" to occur at the outlet of the hopper due to fiber adhesion and clumping, leading to a complete interruption of conveying and production being unable to continue.

[0003] Current screw feeders are prone to causing raw materials to stick together, leading to a decrease in raw material utilization. Utility Model Content

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a spiral feeding device for fiber density board production, including a base plate, a support fixedly connected to the top of the base plate, a conveying cylinder fixedly connected to the top of the support, a spiral device fixedly connected to the side of the conveying cylinder, and a conical conveying pipe connected to the side of the conveying cylinder.

[0005] Preferably, the conveying cylinder includes a feeding pipe, with a connecting bracket fixedly connected to one end of the inner wall of the feeding pipe, and a fixed cylinder fixedly connected to the end of the connecting bracket away from the feeding pipe. A reversing blade is fixedly connected to the side of the fixed cylinder. A feeding assembly is connected to the top of the feeding pipe, and the bottom of the feeding pipe is fixedly connected to the top of the equipment support. The side of the inner wall of the feeding pipe is fixedly connected to the side of the screw device. Raw materials enter the interior of the feeding pipe through the feeding assembly. The feeding pipe holds the raw materials and fixes the fixed cylinder to the connecting bracket. The reversing blade is used to create a reverse pushing state with the screw device, thereby increasing the disorder of the internal raw materials, thus making the raw materials more thoroughly mixed and improving the mixing quality.

[0006] Preferably, the feeding assembly includes a feeding pipe, an upper guide plate is fixedly connected to the top of the inner wall side of the feeding pipe, a connecting plate is fixedly connected through the top of the upper guide plate, a lower guide plate is fixedly connected to the bottom of the connecting plate, the bottom of the feeding pipe is connected to the top of the feeding pipe, the raw material is introduced through the feeding pipe and guided by the combined action of the upper guide plate and the connecting plate, thereby dispersing the raw material and avoiding uneven dispersion of the raw material during the introduction process. The lower guide plate performs secondary dispersion of the raw material, and the combined action of the upper and lower guide plates prevents the raw material from leaking out during the stirring process, thus facilitating stirring and mixing.

[0007] Preferably, the spiral device includes a first motor, a rotating base fixedly connected to the drive shaft of the first motor, a scraping bracket fixedly connected to the side of the rotating base, and spiral blades fixedly connected to the side of the scraping bracket. The spiral blades have sliding holes on their sides that are adapted to the reverse blades. The side of the first motor is fixedly connected to the side of the feeding pipe, and the side of the scraping bracket contacts the inner wall of the feeding pipe. When the first motor is started, the drive shaft of the first motor rotates, causing the rotating base to rotate. The rotation of the rotating base causes the scraping bracket to move, which in turn causes the spiral blades to move. The spiral blades move, stirring and conveying the raw materials. The reverse guidance of the spiral blades and the reverse blades achieves repeated mixing and superposition of the raw materials, thereby achieving a higher degree of mixing and promoting uniform mixing. The difference in cross-sectional area between the spiral blades and the reverse blades facilitates the conveying of the raw materials. Simultaneously, the scraping bracket scrapes along the inner wall of the feeding pipe while also scraping the raw materials inside the feeding pipe, thereby improving the utilization rate of the raw materials.

[0008] This utility model provides a spiral feeding device for fiber density board production. It has the following beneficial effects:

[0009] 1. This spiral feeding device for fiber density board production is equipped with a feeding pipe. The raw material enters the inside of the feeding pipe through the feeding component. The feeding pipe holds the raw material and fixes the fixed cylinder through the connecting bracket. The reverse blades are used to push in the opposite direction with the spiral device, thereby increasing the disorder of the raw material inside, so as to make the raw material more fully mixed and improve the mixing quality.

[0010] 2. This spiral feeding device for fiber density board production is equipped with a feeding pipe. The raw material is introduced through the feeding pipe and guided by the upper guide plate and connecting plate, thereby dispersing the raw material and avoiding uneven dispersion during the introduction process. The lower guide plate further disperses the raw material. The combination of the upper and lower guide plates prevents the raw material from leaking out during the mixing process, thus facilitating mixing.

[0011] 3. This spiral feeding device for fiber density board production is equipped with a first motor. The drive shaft of the first motor rotates, causing the rotating base to rotate. The rotation of the rotating base causes the scraper support to move, which in turn causes the spiral blades to move. The spiral blades move, causing the raw materials to be stirred and conveyed. The reverse guidance between the spiral blades and the reverse blades enables repeated mixing and superposition of the raw materials, thereby achieving a higher degree of mixing and promoting uniform mixing of the raw materials. The material is conveyed by the difference in cross-sectional area between the spiral blades and the reverse blades. At the same time, the scraper support scrapes the raw materials inside the feeding pipe while scraping along the inner wall of the feeding pipe, thereby improving the utilization rate of the raw materials. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the spiral feeding device for fiber density board production according to this utility model;

[0013] Figure 2 This is a schematic diagram of the conveyor cylinder structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the feeding assembly structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the spiral device structure of this utility model.

[0016] In the diagram: 1. Equipment base plate; 2. Equipment support; 3. Conveying cylinder; 4. Screw device; 5. Conical conveying pipe; 301. Feeding pipe; 302. Connecting support; 303. Fixed cylinder; 304. Reverse blade; 305. Feeding assembly; 3051. Feeding pipe; 3052. Upper guide plate; 3053. Connecting plate; 3054. Lower guide plate; 401. First motor; 402. Rotating base; 403. Scraper support; 404. Screw blade; 405. Sliding hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] For the first embodiment, please refer to... Figure 1-Figure 1 This utility model provides a technical solution: a spiral feeding device for fiber density board production, including a base plate 1, a support 2 fixedly connected to the top of the base plate 1, a conveying cylinder 3 fixedly connected to the top of the support 2, a spiral device 4 fixedly connected to the side of the conveying cylinder 3, and a conical conveying pipe 5 connected to the side of the conveying cylinder 3.

[0019] The base plate 1 provides overall support for the equipment, the support frame 2 supports the conveying cylinder 3, the conveying cylinder 3 stirs and melts the raw materials and propels them forward, and the raw materials are conveyed by the screw device 4. The melted raw materials are output. While stirring the conveyed raw materials, the screw device 4 scrapes the raw materials inside the conveying cylinder 3, thereby improving the utilization rate of materials. The cooperation between the conveying cylinder 3 and the screw device 4 also prevents the raw materials from sticking to the center of the inside.

[0020] Second embodiment, please refer to Figure 2-Figure 2 Based on the first embodiment, this utility model provides a technical solution: the conveying cylinder 3 includes a feeding pipe 301, a connecting bracket 302 is fixedly connected to one end of the inner wall of the feeding pipe 301, a fixed cylinder 303 is fixedly connected to the end of the connecting bracket 302 away from the feeding pipe 301, a reverse blade 304 is fixedly connected to the side of the fixed cylinder 303, a feeding assembly 305 is connected to the top of the feeding pipe 301, the bottom of the feeding pipe 301 is fixedly connected to the top of the equipment support 2, and the inner wall side of the feeding pipe 301 is fixedly connected to the side of the screw device 4.

[0021] The raw materials enter the interior of the feeding pipe 301 through the feeding assembly 305. The feeding pipe 301 holds the raw materials and fixes the fixed cylinder 303 through the connecting bracket 302. The reverse blade 304 is used to form a reverse pushing state with the spiral device 4, thereby increasing the disorder of the raw materials inside, so as to make the raw materials more fully mixed and improve the mixing quality.

[0022] Third embodiment, please refer to Figure 3-Figure 3Based on the second embodiment, this utility model provides a technical solution: the feeding assembly 305 includes a feeding pipe 3051, an upper guide plate 3052 is fixedly connected to the top of the inner wall side of the feeding pipe 3051, a connecting plate 3053 is fixedly connected through the top of the upper guide plate 3052, a lower guide plate 3054 is fixedly connected to the bottom of the connecting plate 3053, and the bottom of the feeding pipe 3051 is connected to the top of the feeding pipe 301.

[0023] The raw material is introduced through the feed pipe 3051 and guided by the upper guide plate 3052 and the connecting plate 3053 to disperse it, thus avoiding uneven dispersion during the introduction process. The raw material is further dispersed by the lower guide plate 3054. The combined action of the upper guide plate 3052 and the lower guide plate 3054 prevents the raw material from leaking out during the stirring process, thus facilitating mixing.

[0024] For the fourth embodiment, please refer to [link / reference]. Figure 4-Figure 4 Based on the third embodiment, this utility model provides a technical solution: the spiral device 4 includes a first motor 401, a rotating base 402 is fixedly connected to the drive shaft of the first motor 401, a scraping bracket 403 is fixedly connected to the side of the rotating base 402, a spiral blade 404 is fixedly connected to the side of the scraping bracket 403, a sliding hole 405 adapted to the reverse blade 304 is opened on the side of the spiral blade 404, the side of the first motor 401 is fixedly connected to the side of the feeding pipe 301, and the side of the scraping bracket 403 is in contact with the inner wall of the feeding pipe 301.

[0025] The first motor 401 is started, and the drive shaft of the first motor 401 rotates, causing the rotating base 402 to rotate. The rotation of the rotating base 402 causes the scraping bracket 403 to move, which in turn causes the spiral blades 404 to move. The spiral blades 404 move, causing the raw materials to be stirred and conveyed. The reverse guidance between the spiral blades 404 and the reverse blades 304 achieves repeated mixing and superposition of the raw materials, thereby achieving a higher degree of mixing and promoting uniform mixing of the raw materials. The material is conveyed by the difference in cross-sectional area between the spiral blades 404 and the reverse blades 304. At the same time, the scraping bracket 403 scrapes the raw materials inside the feeding pipe 301 while scraping along the inner wall of the feeding pipe 301, thereby improving the utilization rate of the raw materials.

[0026] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A spiral feeding device for fiber density board production, characterized in that: The equipment includes a base plate (1), a support frame (2) is fixedly connected to the top of the base plate (1), a conveying cylinder (3) is fixedly connected to the top of the support frame (2), a spiral device (4) is fixedly connected to the side of the conveying cylinder (3), and a conical conveying pipe (5) is connected to the side of the conveying cylinder (3).

2. The screw feeding device for fiber density board production according to claim 1, characterized in that: The conveying cylinder (3) includes a feeding pipe (301), a connecting bracket (302) is fixedly connected to one end of the inner wall of the feeding pipe (301), a fixed cylinder (303) is fixedly connected to the end of the connecting bracket (302) away from the feeding pipe (301), a reverse blade (304) is fixedly connected to the side of the fixed cylinder (303), and a feeding assembly (305) is connected to the top of the feeding pipe (301).

3. The screw feeding device for fiber density board production according to claim 2, characterized in that: The bottom of the feeding pipe (301) is fixedly connected to the top of the equipment bracket (2), and the inner side of the feeding pipe (301) is fixedly connected to the side of the spiral device (4).

4. The screw feeding device for fiber density board production according to claim 2, characterized in that: The feeding assembly (305) includes a feeding pipe (3051), an upper guide plate (3052) is fixedly connected to the top of the inner wall side of the feeding pipe (3051), a connecting plate (3053) is fixedly connected to the top of the upper guide plate (3052), a lower guide plate (3054) is fixedly connected to the bottom of the connecting plate (3053), and the bottom of the feeding pipe (3051) is connected to the top of the feeding pipe (301).

5. The screw feeding device for fiber density board production according to claim 1, characterized in that: The spiral device (4) includes a first motor (401), a rotating base (402) is fixedly connected to the drive shaft of the first motor (401), a scraping bracket (403) is fixedly connected to the side of the rotating base (402), a spiral blade (404) is fixedly connected to the side of the scraping bracket (403), and a sliding hole (405) adapted to the reverse blade (304) is opened on the side of the spiral blade (404).

6. The screw feeding device for fiber density board production according to claim 5, characterized in that: The side of the first motor (401) is fixedly connected to the side of the feeding pipe (301), and the side of the scraping bracket (403) is in contact with the inner wall of the feeding pipe (301).

Images