A fiber raw material screening device for papermaking

Abstract

The utility model provides a kind of papermaking fiber raw material screening device, it is related to mechanical structure design technical field, including shell, the shell outer wall is fixedly connected with fixed shell, the fixed shell inner wall is fixedly connected with first motor, the first motor drive end is fixedly connected with cam disc, the cam disc outer wall is slidably connected with rocker, the rocker outer wall is rotatably connected with limit rod, the outer wall of limit rod is rotatably connected on the inner wall of fixed shell, the rocker outer wall is meshingly connected with toothed plate, the outer wall of toothed plate is slidably connected on the inner wall of shell, the toothed plate outer wall is fixedly connected with sieve plate.The utility model, adopt rocker and toothed plate and other structures, sieve plate is driven back and forth by motor to shake, not only can speed up the screening of fiber raw material, and can be jammed in sieve plate hole hole Large particle fiber raw material is made to separate from hole by shaking, to facilitate the fiber raw material screened out in later period to be concentrated processing, to make the practicability of device stronger.

Description

Technical Field

[0001] This utility model relates to the field of mechanical structure design technology, and in particular to a screening device for fiber raw materials used in papermaking. Background Technology

[0002] The quality of pulp is primarily determined by its fiber morphology and purity. Refined pulp is not only used to manufacture specialty papers but also frequently serves as a raw material for producing cellulose derivatives such as cellulose esters and cellulose ethers. Therefore, to produce high-quality paper and other related products, it is necessary to finely screen papermaking fiber raw materials to ensure fiber quality and purity. This has spurred the continuous development and improvement of screening equipment. Papermaking fiber raw materials are widely available and have complex compositions. When using waste paper as raw material, many impurities such as metals, plastics, and adhesive tape inevitably remain during the pulping process. Alternative raw materials such as wood fibers also have characteristics such as high moisture content and fine filamentous structure. Traditional screening methods tend to cause wood fibers to clump together, resulting in some qualified wood fibers being screened out along with coarse impurities. All of these factors increase the difficulty of screening and place higher demands on the structure and performance of screening equipment.

[0003] Most existing fiber raw material screening devices for papermaking suffer from problems such as fiber clogging of the screen plates and low screening efficiency during the screening process. This can cause the device to jam due to fiber clogging during use, and it can also affect the work progress, thus making the device less practical. Utility Model Content

[0004] The purpose of this invention is to solve the problem that most existing papermaking fiber raw material screening devices suffer from low screening efficiency due to fiber clogging of the screen plates during the screening process. This causes the device to jam during use due to fiber clogging of the screen plates, and also affects the work progress, thus making the device less practical. Therefore, this invention proposes a papermaking fiber raw material screening device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a papermaking fiber raw material screening device, comprising a shell, characterized in that: a fixed shell is fixedly connected to the outer wall of the shell, a first motor is fixedly connected to the inner wall of the fixed shell, a cam disk is fixedly connected to the drive end of the first motor, a rocker arm is slidably connected to the outer wall of the cam disk, a limit rod is rotatably connected to the outer wall of the rocker arm, the outer wall of the limit rod is rotatably connected to the inner wall of the fixed shell, a toothed plate is meshed with the outer wall of the rocker arm, the outer wall of the toothed plate is slidably connected to the inner wall of the shell, a sieve plate is fixedly connected to the outer wall of the toothed plate, the outer wall of the sieve plate is slidably connected to the inner wall of the shell, and a screen is fixedly connected to the inner wall of the sieve plate.

[0006] Preferably, the contact area between the sieve plate and the outer shell is provided with a rubber pad.

[0007] Preferably, a slider is slidably connected to the inner wall of the outer shell, and a spray pipe is fixedly connected to the outer wall of the slider.

[0008] Preferably, a second motor is fixedly connected to the inner wall of the slider, and a drive rod is fixedly connected to the drive end of the second motor. The outer wall of the drive rod is rotatably connected to the inner wall of the slider, and the outer wall of the drive rod is slidably connected to the inner wall of the outer shell.

[0009] Preferably, a gear is fixedly connected to the outer wall of the drive rod, a rack is meshed with the outer wall of the gear, and the outer wall of the rack is fixedly connected to the inner wall of the outer casing.

[0010] Preferably, a collection groove is fixedly connected to the outer wall of the outer shell, and a groove connected to the collection groove is opened on the inner wall of the outer shell.

[0011] Preferably, a spring telescopic rod is fixedly connected to the inner wall of the collection tank, and locking blocks are fixedly connected to the outer walls on both sides of the spring telescopic rod.

[0012] Preferably, the outer wall of the card block is slidably connected to the inner wall of the collection groove, and the outer wall of the card block is slidably connected to the inner wall of the outer shell.

[0013] Preferably, the inner wall of the outer shell is provided with a sliding groove for the card block to slide and engage.

[0014] Preferably, a knob is fixedly connected to the outer wall of the card block.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, a rocker arm and toothed plate are used to drive the screen plate to shake back and forth. This not only speeds up the screening of fiber raw materials, but also allows large particles of fiber raw materials that are blocked in the holes of the screen plate to be removed from the holes by shaking. This makes it easier to centrally process the screened fiber raw materials in the later stage, thus making the device more practical.

[0017] 2. In this utility model, a structure consisting of gear racks and spray pipes is adopted. The spray pipes are driven by a motor to flush and centrally process large-particle fiber raw materials on the surface of the screen plate. This not only cleans the screen plate but also does not affect the screen plate's ability to continue screening fiber raw materials, thus not affecting the work process. Secondly, the collection tank is modularly designed, and it can be easily installed and disassembled with two locking blocks, which facilitates the centralized processing of large-particle fiber raw materials in the later stage, thereby making the device more versatile. Attached Figure Description

[0018] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a fiber raw material screening device for papermaking;

[0019] Figure 2 This utility model provides a schematic diagram of the internal structure of a fiber raw material screening device for papermaking;

[0020] Figure 3 This utility model provides a schematic diagram of the screening structure of a fiber raw material screening device for papermaking;

[0021] Figure 4 This utility model provides a schematic diagram of the transmission structure of a fiber raw material screening device for papermaking;

[0022] Figure 5 This utility model provides a schematic diagram of the driving structure of a fiber raw material screening device for papermaking;

[0023] Figure 6 This utility model provides a cross-sectional schematic diagram of the collection tank of a fiber raw material screening device for papermaking.

[0024] Legend: 1. Outer shell; 2. Fixed shell; 3. First motor; 4. Cam plate; 5. Limiting rod; 6. Rocker arm; 7. Gear plate; 8. Screen plate; 9. Slider; 10. Spray pipe; 11. Second motor; 12. Drive rod; 13. Gear; 14. Rack; 15. Collection trough; 16. Spring telescopic rod; 17. Locking block; 18. Knob. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1: As Figures 1-6As shown, this utility model provides a technical solution: a papermaking fiber raw material screening device, including a shell 1, a fixed shell 2 fixedly connected to the outer wall of the shell 1, a first motor 3 fixedly connected to the inner wall of the fixed shell 2, a cam disk 4 fixedly connected to the drive end of the first motor 3, a rocker arm 6 slidably connected to the outer wall of the cam disk 4, a limit rod 5 rotatably connected to the outer wall of the rocker arm 6, the outer wall of the limit rod 5 rotatably connected to the inner wall of the fixed shell 2, a toothed plate 7 meshing with the outer wall of the rocker arm 6, the outer wall of the toothed plate 7 slidably connected to the inner wall of the shell 1, a sieve plate 8 fixedly connected to the outer wall of the toothed plate 7, the outer wall of the sieve plate 8 slidably connected to the inner wall of the shell 1, a screen fixedly connected to the inner wall of the sieve plate 8, and rubber pads provided at the contact points between the sieve plate 8 and the shell 1.

[0028] In this embodiment, the fiber raw material to be screened is first poured into the outer shell 1. Then, the first motor 3 is started. The drive end of the first motor 3 rotates, thereby driving the cam disk 4 to rotate. The cam disk 4 rotates and, under the limiting action of the limiting rod 5, drives the rocker arm 6 to swing back and forth. The rocker arm 6 moves, thereby driving the toothed plate 7 to slide back and forth along the inner wall of the outer shell 1. The toothed plate 7 moves, thereby driving the screen plate 8 to slide back and forth along the inner wall of the outer shell 1, thereby performing a shaking screening process on the fiber raw material. By using a rocker arm and toothed plate structure, and driving the screen plate to shake back and forth through the motor, not only can the screening of fiber raw material be accelerated, but also large particles of fiber raw material blocked in the holes of the screen plate can be shaken out of the holes, thereby facilitating the centralized processing of the screened fiber raw material in the later stage, thus making the device more practical.

[0029] Example 2: As Figures 1-6 As shown, a slider 9 is slidably connected to the inner wall of the outer casing 1, a spray pipe 10 is fixedly connected to the outer wall of the slider 9, a second motor 11 is fixedly connected to the inner wall of the slider 9, a drive rod 12 is fixedly connected to the drive end of the second motor 11, the outer wall of the drive rod 12 is rotatably connected to the inner wall of the slider 9, the outer wall of the drive rod 12 is slidably connected to the inner wall of the outer casing 1, a gear 13 is fixedly connected to the outer wall of the drive rod 12, a rack 14 is meshed with the outer wall of the gear 13, and the outer wall of the rack 14 is fixedly connected to the inner wall of the outer casing 1. On the inner wall, a collection groove 15 is fixedly connected to the outer wall of the outer shell 1. A slot is opened on the inner wall of the outer shell 1 to connect with the collection groove 15. A spring telescopic rod 16 is fixedly connected to the inner wall of the collection groove 15. A locking block 17 is fixedly connected to the outer walls on both sides of the spring telescopic rod 16. The outer wall of the locking block 17 is slidably connected to the inner wall of the collection groove 15. The outer wall of the locking block 17 is slidably connected to the inner wall of the outer shell 1. A sliding groove is opened on the inner wall of the outer shell 1 for the locking block 17 to slide and lock. A knob 18 is fixedly connected to the outer wall of the locking block 17.

[0030] In this embodiment, the second motor 11 is first started, and the spray pipe 10 is also started. The drive end of the second motor 11 rotates, thereby driving the drive rod 12 to rotate along the inner wall of the slider 9. The rotation of the drive rod 12 drives the gear 13 to rotate. The rotation of the gear 13, under the action of the rack 14, drives the slider 9 and the drive rod 12 to slide along the inner wall of the outer shell 1. The sliding of the slider 9 drives the spray pipe 10 to move. The movement of the spray pipe 10 sprays the large fibrous raw material adhering to the screen surface into the collection tank 15 through the water flow. When the collection tank 15 is saturated, the two knobs 18 are pressed. The knobs 18 move, thereby driving the locking block 17 to slide along the inner wall of the collection tank 15, and also slide along the inner wall of the outer shell 1 and disengage from the chute. When the spring telescopic rod 16 is in the compressed state, the collection tank 15 is removed, the fiber material inside is removed, and then the collection tank 15 is placed in a suitable position. The two knobs 18 are then released. Under the action of the spring telescopic rod 16, the two locking blocks 17 are re-locked onto the sliding groove on the inner wall of the outer casing 1, thus fixing it. The structure adopts gear rack and pinion and spray pipe, etc. The motor drives the spray pipe to flush and centrally process the large-particle fiber material on the surface of the screen plate. This not only cleans the screen plate, but also does not affect the screen plate to continue screening fiber material, thus not affecting the working process. Secondly, the collection tank is modularly designed. It can be easily installed and disassembled by two locking blocks, which facilitates the centralized processing of large-particle fiber material in the later stage, thus making the device more versatile.

[0031] The working principle of this embodiment is as follows: First, the fiber raw material to be screened is poured into the outer shell 1. Then, the first motor 3 is started. The drive end of the first motor 3 rotates, thereby driving the cam disk 4 to rotate. The rotation of the cam disk 4, under the limiting action of the limiting rod 5, drives the rocker arm 6 to swing back and forth. The movement of the rocker arm 6 drives the toothed plate 7 to slide back and forth along the inner wall of the outer shell 1. The movement of the toothed plate 7 drives the screen plate 8 to slide back and forth along the inner wall of the outer shell 1, thereby performing a shaking screening process on the fiber raw material. When the screen needs to be cleaned, the second motor 11 is started, and the spray pipe 10 is started at the same time. The drive end of the second motor 11 rotates, thereby driving the drive rod 12 to rotate along the inner wall of the slider 9. The rotation of the drive rod 12 drives the gear 13 to rotate. The rotation of the gear 13, along with the action of the rack 14, drives the gear 13 to rotate. The sliding block 9 and the drive rod 12 move simultaneously along the inner wall of the outer casing 1. The sliding block 9 moves the spray pipe 10, which in turn moves the spray pipe 10, spraying the large fibrous material adhering to the screen surface into the collection tank 15 through water flow. When the collection tank 15 is saturated, press the two knobs 18. The knobs 18 move, which in turn moves the locking block 17 along the inner wall of the collection tank 15 and also along the inner wall of the outer casing 1, disengaging from the slide groove. At this time, the spring telescopic rod 16 is in a compressed state. Then, remove the collection tank 15, remove the fibrous material inside, place the collection tank 15 in a suitable position, and release the two knobs 18. Under the action of the spring telescopic rod 16, the two locking blocks 17 are re-locked onto the slide groove on the inner wall of the outer casing 1, thus fixing it in place.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A papermaking fiber raw material screening device, comprising a housing (1), characterized in that: The outer wall of the outer shell (1) is fixedly connected to a fixed shell (2), the inner wall of the fixed shell (2) is fixedly connected to a first motor (3), the drive end of the first motor (3) is fixedly connected to a cam disk (4), the outer wall of the cam disk (4) is slidably connected to a rocker arm (6), the outer wall of the rocker arm (6) is rotatably connected to a limit rod (5), the outer wall of the limit rod (5) is rotatably connected to the inner wall of the fixed shell (2), the outer wall of the rocker arm (6) is meshed with a toothed plate (7), the outer wall of the toothed plate (7) is slidably connected to the inner wall of the outer shell (1), the outer wall of the toothed plate (7) is fixedly connected to a sieve plate (8), the outer wall of the sieve plate (8) is slidably connected to the inner wall of the outer shell (1), and the inner wall of the sieve plate (8) is fixedly connected to a screen.

2. The papermaking fiber raw material screening device according to claim 1, characterized in that: Rubber pads are provided at the contact points between the sieve plate (8) and the outer shell (1).

3. The papermaking fiber raw material screening device according to claim 2, characterized in that: The inner wall of the outer shell (1) is slidably connected to a slider (9), and the outer wall of the slider (9) is fixedly connected to a spray pipe (10).

4. The papermaking fiber raw material screening device according to claim 3, characterized in that: The inner wall of the slider (9) is fixedly connected to a second motor (11), and the driving end of the second motor (11) is fixedly connected to a driving rod (12). The outer wall of the driving rod (12) is rotatably connected to the inner wall of the slider (9), and the outer wall of the driving rod (12) is slidably connected to the inner wall of the outer shell (1).

5. The papermaking fiber raw material screening device according to claim 4, characterized in that: A gear (13) is fixedly connected to the outer wall of the drive rod (12), and a rack (14) is meshed with the outer wall of the gear (13). The outer wall of the rack (14) is fixedly connected to the inner wall of the outer shell (1).

6. The papermaking fiber raw material screening device according to claim 5, characterized in that: The outer wall of the outer shell (1) is fixedly connected to a collection groove (15), and the inner wall of the outer shell (1) is provided with a groove connected to the collection groove (15).

7. A papermaking fiber raw material screening device according to claim 6, characterized in that: A spring telescopic rod (16) is fixedly connected to the inner wall of the collection trough (15), and a locking block (17) is fixedly connected to the outer walls on both sides of the spring telescopic rod (16).

8. The papermaking fiber raw material screening device according to claim 7, characterized in that: The outer wall of the card block (17) is slidably connected to the inner wall of the collection groove (15), and the outer wall of the card block (17) is slidably connected to the inner wall of the outer shell (1).

9. A papermaking fiber raw material screening device according to claim 8, characterized in that: The inner wall of the outer shell (1) is provided with a sliding groove for the sliding locking of the locking block (17).

10. A papermaking fiber raw material screening device according to claim 9, characterized in that: A knob (18) is fixedly connected to the outer wall of the card block (17).

Images