Papermaking drum screen for precise screening

Abstract

The papermaking drum screen for accurate screening comprises a supporting assembly, the supporting assembly comprises a supporting frame, the side surface of a rotating shaft is fixedly connected with a first gear, the inner side surface of the first gear is fixedly connected with one end of a connecting rod, and the other end of the connecting rod is fixedly connected with a connecting plate; a plurality of layers of screen drums are fixedly connected to the inner side surface of the connecting plate, and the two side surfaces of the water storage tank are fixedly connected to the inner side surface of the supporting frame. According to the papermaking drum screen for precise screening, the three layers of screen drums are adopted, and the screen holes are gradually enlarged from outside to inside, so that multi-stage precise screening can be achieved through the screen drums. The outer-layer fine screen holes firstly intercept fine impurities, the middle-layer screen drum and the inner-layer screen drum sequentially screen large particles, the situation that the paper quality is affected due to the fact that the device cannot screen and filter the impurities of different sizes is avoided, and the beneficial effects that the impurities and fibers of different particle sizes are effectively separated, and the screening precision is remarkably improved are achieved.

Description

Technical Field

[0001] This utility model relates to the field of papermaking cylindrical screen technology, specifically a papermaking cylindrical screen for precision screening. Background Technology

[0002] While industrial paper has a high tolerance for impurities, the accuracy of fiber grading directly affects the paper's strength and cost. Fibers that are too long can cause the paper to become brittle, while those that are too short will affect its toughness. Traditional screening equipment, due to limitations in its screening principle, struggles to achieve precise control over fiber length and impurity particle size, leading to fluctuations in the quality of the finished paper.

[0003] The patent publication number "CN213978350U" discloses "a cylindrical screen for papermaking", which includes a cylindrical screen body, a screen frame, a screen cylinder and an outer extension plate. The cylindrical screen body is provided with a storage groove inside. The screen frame is provided with a gear slot on its periphery. The screen cylinder is provided with a number of linkage rods on its periphery. One end of each linkage rod is fixedly connected to a central rotating shaft. There are four linkage rods. The four linkage rods are provided with driven gears on their periphery. The driven gears pass through the gear slots. A drive motor is provided on the upper surface of the outer extension plate. One end of the drive motor is provided with a motor shaft. The side of the motor shaft is provided with a driving gear.

[0004] In the aforementioned patent, a drive motor is used to mesh the driving gear and the driven gear, which in turn causes the linkage rod to drive the central shaft to rotate, thereby driving the screen cylinder to rotate. This avoids the problem of the large amount of work required to directly drive the central shaft with a motor. An encapsulation plate is used to fix the screen frame to the cylindrical screen body to prevent shaking during rotation. However, this device is ineffective at screening impurities of different sizes, resulting in poor paper quality. Furthermore, the screen is easily clogged by impurities, further reducing the device's screening efficiency.

[0005] Therefore, this utility model provides a papermaking cylindrical sieve for precision screening to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a precision screening papermaking cylindrical screen, which solves the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a precision screening papermaking cylindrical screen, comprising a support assembly, the support assembly including a support frame, the support frame being two in number and corresponding in position, a screening assembly being disposed between the two support frames, the screening assembly including a water storage tank, the water storage tank having circular holes on both sides of its surface, a rotating shaft rotatably connected to the inner wall of the circular holes, a first gear fixedly connected to the side surface of the rotating shaft, a connecting rod fixedly connected to one end of the inner surface of the first gear, a connecting plate fixedly connected to the other end of the connecting rod, a multi-layer screen cylinder fixedly connected to the inner surface of the connecting plate, and the two sides of the water storage tank fixedly connected to the inner surface of the support frame.

[0008] Furthermore, each connecting rod and connecting plate is a set and evenly distributed at both ends of the multi-layer screen cylinder.

[0009] By employing the above technical solution, and using a three-layer sieve cylinder with sieve holes that gradually increase in size from the outside to the inside, the sieve cylinder can achieve multi-stage precise sieving. The outer layer with fine sieve holes first intercepts small impurities, while the middle and inner sieve cylinders sequentially screen larger particles. This avoids the impact on paper quality caused by the device's inability to filter impurities of different sizes, and achieves the beneficial effects of effectively separating impurities and fibers of different particle sizes and significantly improving sieving accuracy.

[0010] Furthermore, the first gear meshes with a second gear, and a motor output terminal is fixedly connected to the center of the outer surface of the second gear.

[0011] By employing the above technical solution, the motor power is smoothly transmitted to the screen cylinder through the meshing of the first and second gears, resulting in high transmission efficiency and strong reliability. Compared with traditional belt drives, gear drives are more precise, avoid slippage, ensure stable screen cylinder speed, and facilitate accurate control of the screening process.

[0012] Furthermore, the bottom of the water storage tank is provided with a water outlet, and the inner wall of the water outlet is fixedly connected to the outer surface of the water nozzle.

[0013] By adopting the above technical solution, the design of the water storage tank and sprinkler plate supports the recycling of water resources, reduces water waste, and conforms to the concept of green production.

[0014] Furthermore, the two ends of a support rod are fixedly connected to the inner side of the left support frame, and the motor side surface is fixedly connected to the upper surface of the support rod.

[0015] By adopting the above technical solution, the support frames at two corresponding positions provide stable support for the screening components, which enhances the overall rigidity and stability of the equipment, reduces shaking and noise during operation, and extends the service life of the equipment. The support rod on the inner side of the left support frame fixes the motor to prevent motor shaking, ensures the stability of power transmission, and further improves the reliability and operational safety of the equipment.

[0016] Furthermore, a sprinkler plate is fixedly connected between the two support frames.

[0017] By adopting the above technical solution, the screen cylinder can be sprayed and cleaned during the screening process through the combination of water storage tank and water spray plate, which effectively prevents the screen holes from being blocked. The water outlet and water nozzle at the bottom of the water storage tank facilitate drainage and control of water flow, avoiding poor screening effect caused by impurities blocking the screen cylinder. This achieves the beneficial effects of maintaining screening efficiency and facilitating equipment cleaning and maintenance.

[0018] Beneficial effects

[0019] This invention provides a precision screening papermaking cylindrical sieve. Compared with the prior art, it has the following advantages:

[0020] 1. This precision screening papermaking cylindrical screen employs a three-layer screen cylinder with screen holes that gradually increase in size from the outside to the inside, enabling multi-stage precision screening. The outer layer with fine screen holes first intercepts small impurities, while the middle and inner layers sequentially screen larger particles. This avoids the impact on paper quality caused by the device's inability to filter impurities of different sizes, achieving the beneficial effects of effectively separating impurities and fibers of different particle sizes and significantly improving screening accuracy.

[0021] 2. This precision screening papermaking cylindrical screen, through the combination of a water storage tank and a water spray plate, can spray and clean the screen cylinder during the screening process, effectively preventing screen hole blockage. The water outlet and water nozzle at the bottom of the water storage tank facilitate drainage and water flow control, avoiding poor screening effect caused by impurities clogging the screen cylinder. It achieves the beneficial effects of maintaining screening efficiency and facilitating equipment cleaning and maintenance. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a perspective view of the external structure of this utility model;

[0024] Figure 2 This is a partial main view of the screening component structure of this utility model;

[0025] Figure 3 This is a side view of part of the screening component structure of this utility model;

[0026] Figure 4 This is a bottom view of the structure of this utility model.

[0027] In the diagram: 1. Support assembly; 101. Support frame; 102. Support rod; 103. Sprinkler plate; 2. Screening assembly; 201. Water storage tank; 202. Circular hole; 203. Rotating shaft; 204. First gear; 205. Connecting rod; 206. Connecting plate; 207. Multi-layer screen cylinder; 208. Second gear; 209. Motor; 210. Water outlet; 211. Water nozzle. Detailed Implementation

[0028] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0029] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] Reference Figures 1 to 4 This application provides a precision screening papermaking cylindrical screen, including a support assembly 1. The support assembly 1 includes two support frames 101, which are positioned correspondingly. A screening assembly 2 is disposed between the two support frames 101. The screening assembly 2 includes a water storage tank 201. Circular holes 202 are opened on both sides of the water storage tank 201. A rotating shaft 203 is rotatably connected to the inner wall of the circular hole 202. A first gear 204 is fixedly connected to the side surface of the rotating shaft 203. One end of a connecting rod 205 is fixedly connected to the inner surface of the first gear 204. A connecting plate 206 is fixedly connected to the other end of the connecting rod 205. A multi-layer screen cylinder 207 is fixedly connected to the inner surface of the connecting plate 206. The two sides of the water storage tank 201 are fixedly connected to the inner surface of the support frame 101. Each end of the connecting rod 205 and the connecting plate 206 forms a group and is evenly distributed at both ends of the multi-layer screen cylinder 207.

[0031] In this embodiment, the support component 1 consists of two support frames 101 at corresponding positions, supporting the screening component 2; the water storage tank 201 of the screening component 2 is rotatably connected to the rotating shaft 203 on both sides through the round holes 202, forming a rotatable support structure; the support frame 101 provides stable support for the entire equipment, ensuring structural stability during the screening process; the rotating shaft 203 rotates in the round hole 202, allowing the multi-layer screen cylinder 207 to rotate around the rotating shaft 203; the connecting rod 205 and the connecting plate 206 connect the first gear 204 to the multi-layer screen cylinder 207, ensuring that the gear rotates synchronously, driving the multi-layer screen cylinder 207 to rotate synchronously.

[0032] Reference Figures 1 to 4 In one aspect of this embodiment, the first gear 204 meshes with the second gear 208, and the output end of the motor 209 is fixedly connected to the center of the outer surface of the second gear 208.

[0033] In this embodiment, the motor 209 drives the second gear 208 to rotate, and transmits power to the first gear 204 through gear meshing; the first gear 204 drives the rotating shaft 203 and the multi-layer screen cylinder 207 to rotate synchronously.

[0034] Reference Figures 1 to 4 In one aspect of this embodiment, a water outlet 210 is provided at the bottom of the water storage tank 201, and a water nozzle 211 is fixedly connected to the outer surface of the inner wall of the water outlet 210.

[0035] In this embodiment, the water storage tank 201 stores cleaning water for spray cleaning or pulp dilution during the screening process; the water outlet 210 and the water nozzle 211 control the water flow discharge. The amount and pressure of cleaning water can be controlled by adjusting the opening of the water nozzle 211 to ensure that impurities on the surface of the screen cylinder are effectively washed away and to prevent screen hole blockage.

[0036] Reference Figures 1 to 4 In one aspect of this embodiment, the two ends of the support rod 102 are fixedly connected to the inner side of the left support frame 101, and the side surface of the motor 209 is fixedly connected to the upper surface of the support rod 102.

[0037] In this embodiment, the support rod 102 provides rigid support for the motor 209, making the support structure more stable.

[0038] Reference Figures 1 to 4 In one aspect of this embodiment, a sprinkler plate 103 is fixedly connected between two support frames 101.

[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0040] Working principle: First, the motor 209 is turned on to drive the second gear 208 to drive the first gear 204, which in turn drives the rotating shaft 203 and the multi-layer screen cylinder 207 to rotate. Then, the pulp enters from one end of the screen cylinder and is poured into the inner layer of the screen cylinder. Fibers and impurities of different particle sizes are separated through the corresponding screen holes. Fine particles pass through the outer screen holes, while larger particles are blocked by the middle and inner screen cylinders in sequence. The screened pulp and the clean water in the water storage tank 201 flow out from the outlet 210.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision screening cylinder for papermaking, comprising a support assembly (1), characterized in that: The support assembly (1) comprises support frames (101), the number of the support frames (101) is two and the positions of the support frames (101) correspond to each other, a screening assembly (2) is arranged between the two support frames (101), the screening assembly (2) comprises a water storage tank (201), circular holes (202) are formed in the two side surfaces of the water storage tank (201), rotating shafts (203) are rotatably connected to the inner walls of the circular holes (202), first gear wheels (204) are fixedly connected to the side surfaces of the rotating shafts (203), connecting rods (205) are fixedly connected to the inner side surfaces of the first gear wheels (204), one ends of the connecting rods (205), connecting plates (206) are fixedly connected to the other ends of the connecting rods (205), a plurality of layers of sieve cylinders (207) are fixedly connected to the inner side surfaces of the connecting plates (206), and the two side surfaces of the water storage tank (201) are fixedly connected to the inner side surfaces of the support frames (101).

2. A precision screening papermaking cylinder screen according to claim 1, characterized in that: Each end connecting rod (205) and the connecting plate (206) form a group and are uniformly distributed at the front and rear ends of the plurality of layers of sieve cylinders (207).

3. A papermaking cylinder screen for precision screening according to claim 1, characterized in that: The first gear wheel (204) is engaged with a second gear wheel (208), and the outer side surface center of the second gear wheel (208) is fixedly connected with the output end of a motor (209).

4. A precision screening papermaking cylinder screen according to claim 1, characterized in that: A water outlet (210) is formed in the bottom of the water storage tank (201), and a water nozzle (211) is fixedly connected to the inner wall of the water outlet (210).

5. A precision screening cylinder screen for papermaking according to claim 3, characterized in that: The inner side of the left support frame (101) is fixedly connected with support rods (102) at both ends, and the side surface of the motor (209) is fixedly connected to the upper surface of the support rod (102).

6. A precision screening cylinder screen for papermaking according to claim 1, characterized in that: Spraying plates (103) are fixedly connected between the two support frames (101).

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