A paper pulp dewatering device for roll paper production
By designing filtration and dewatering devices, the problem of impurity filtration in paper roll production was solved, the protection of the rollers and the uniformity of dewatering were achieved, and the roller life was extended.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU GUOSHENG PAPER PROD CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-08-04
AI Technical Summary
The inability to effectively filter out fine impurities during the production of paper rolls leads to scratches on the roller surface, resulting in uneven dehydration and shortened roller life.
A pulp dewatering device including a filtration device and a dewatering device was designed. The motor drives the rotating rod to drive the push rod and the filter plate to shake, filtering out fine impurities. The roller is driven to rotate through a pulley and chain transmission system to achieve thorough dewatering.
It effectively filters out impurities such as plastic particles and ink residue, avoids scratches on the roller surface, ensures uniform dehydration and roller life, and improves production efficiency.
Smart Images

Figure CN224591239U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of paper roll production technology, specifically relating to a pulp dewatering device for paper roll production. Background Technology
[0002] Papermaking is an important invention of the ancient Chinese working people, and it is divided into two forms: machine-made and handmade. Machine-made papermaking is carried out continuously on a papermaking machine. Pulp suitable for paper quality is diluted with water to a certain concentration, and then initially dehydrated in the wire section of the papermaking machine to form a wet sheet. It is then pressed to dehydrate and then dried to form paper. Handmade papermaking uses a frame with bamboo screens, polyester mesh, or copper mesh to form a wet sheet of dispersed and suspended fibers in water. It is then pressed to dehydrate and then dried in the sun or oven to form paper. Machine-made paper uses a machine to beat the pulp, breaking down the pulp fibers. This makes handmade paper much stronger and more durable than machine-made paper. Machine-made paper suffers from uneven fiber distribution in the longitudinal and transverse directions due to the difference in pulp and wire speed. Handmade paper does not have this uneven fiber distribution ratio, which is especially evident in paper used for calligraphy and painting.
[0003] Chinese patent CN213804600U discloses a dewatering device for pulp production, including a housing and a dewatering device. The side wall of the housing has an inlet and an outlet. The housing also has a feeding assembly, which includes a protective shell and a cylinder. The protective shell has a groove, and a slider is slidably connected in the groove. One side of the slider is connected to a loading trough. One end of the loading trough is hinged to a movable plate, and the other end has an opening. A gravity sensor is installed in the movable plate. The movable end of the cylinder passes through one side of the protective shell and is connected to one side of the loading trough. A baffle is connected to the side of the loading trough away from the movable plate. The protective shell also includes a switch and a storage tank. The switch is electrically connected to the gravity sensor and the cylinder. The storage tank works in conjunction with the loading trough. With this configuration, the output amount of pulp is stable before dewatering, which ensures that each batch of pulp is completely dewatered and saves a lot of manpower.
[0004] However, current paper roll production technology suffers from the following problems: it cannot filter out fine impurities, leading to scratches on the roller surface, which not only causes uneven dewatering but also shortens the roller's lifespan. Therefore, we propose a pulp dewatering device for paper roll production. Utility Model Content
[0005] The purpose of this invention is to provide a pulp dewatering device for paper roll production, which can solve the problem in related technologies that cannot filter out fine impurities, resulting in scratches on the roller surface, uneven dewatering, and shortened roller life.
[0006] The specific technical solution adopted by this utility model is as follows:
[0007] A pulp dewatering device for paper roll production includes a base, a support leg fixedly connected to the bottom of the base, a drainage box fixedly connected to the top of the base, a drainage outlet provided on the side of the drainage box, and a filter device provided on the top of the base.
[0008] The filtration device includes a motor, the bottom of which is fixedly connected to the top of the base. A rotating rod is fixedly connected to the output shaft of the motor. A half gear is fixedly connected to the circumferential surface of the rotating rod. A support bar is fixedly connected to the top of the motor. A rack is slidably connected to the top of the support bar. A push rod is fixedly connected to the back side of the rack. A filter plate is fixedly connected to the bottom of the push rod.
[0009] The drain tank has a through groove inside, and one end of a return spring is fixedly connected to the inner wall of the through groove. The other end of the return spring is fixedly connected to the side of the filter plate. The through groove is used to allow the filter plate to shake.
[0010] A support plate is fixedly connected to the side of the base, and one end of a tension spring is fixedly connected to the side of the support plate. The other end of the tension spring is fixedly connected to the side of the rack. The function of the tension spring is to reset when no force is applied.
[0011] The number of the through groove and the return spring is set to two, and they are symmetrical to each other along the vertical central axis of the drainage box. The function of the return spring is to reset when no force is applied.
[0012] The drain tank is equipped with a dehydration device, which includes a pulley, the inner wall of which is fixedly connected to the circumferential surface of a rotating rod. A belt is rotatably connected to the circumferential surface of the pulley, and a pulley is driven to the inner wall of the belt. The pulley and the pulley are connected by a belt drive. A fixing plate is fixedly connected to the front side of the base, and a rotating rod rotatably passes through the inside of the fixing plate. The inner wall of the pulley is fixedly connected to the circumferential surface of the rotating rod.
[0013] A sprocket is fixedly connected to the circumferential surface of the rotating rod. A chain is provided on the circumferential surface of the sprocket. A sprocket is provided on the inner wall of the chain. A drive rod is fixedly passed through the inner wall of the sprocket. The drive rod rotates through the interior of the drainage tank. A roller is fixedly connected to the top of the drive rod. The function of the pulley is to drive the belt to rotate. The function of the belt is to drive the pulley to rotate.
[0014] The circumferential surface of sprocket one meshes with the inner wall of the chain, and the inner wall of the chain meshes with the circumferential surface of sprocket two. The function of sprocket one is to drive the chain to rotate, and the function of the chain is to drive sprocket two to rotate.
[0015] The technical effects achieved by this utility model are as follows:
[0016] 1. This utility model, through the setting of a filtration device, enables the motor to be started. When the output shaft of the motor rotates, it drives a rotating rod to rotate. The rotation of the rotating rod drives a push rod to move. When the push rod moves, it causes the filter plate to shake within the channel. Thus, when the filter plate shakes, it can filter out fine impurities, such as plastic particles, ink residue, and silt in waste paper pulp, and bamboo fragments in bamboo pulp. If these impurities are not intercepted by the filtration device, they will enter the dewatering zone of the dewatering device with the pulp, causing scratches on the roller surface, resulting in uneven dewatering and shortening the roller's lifespan.
[0017] 2. This utility model, through the setting of the dewatering device, enables the rotation of the rotating rod to drive the drive rod to rotate. When the drive rod rotates, it drives the roller to rotate, thereby achieving the purpose of thoroughly dewatering the pulp and avoiding the impact of insufficient dewatering on subsequent processing steps. At the same time, after dewatering, the drain outlet can quickly discharge the water in the pulp, preventing the water from moving back into the roller and requiring drainage again. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the entire utility model;
[0019] Figure 2 This is a schematic diagram of the filtration device of this utility model;
[0020] Figure 3 This is a schematic diagram of the dehydration device of this utility model;
[0021] Figure 4 This is a utility model Figure 2 A schematic diagram of the three-dimensional magnified structure at point A in the middle;
[0022] Figure 5 This is a utility model Figure 3 A schematic diagram of the three-dimensional magnified structure at point B.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Base; 2. Support leg; 3. Drainage tank; 4. Drain outlet; 5. Filter device; 51. Motor; 52. Rotating rod; 53. Half gear; 54. Support bar; 55. Rack; 56. Push rod; 57. Filter plate; 58. Through groove; 59. Return spring; 510. Support plate; 511. Tension spring; 6. Dewatering device; 61. Pulley 1; 62. Belt; 63. Pulley 2; 64. Fixing plate; 65. Rotating rod; 66. Sprocket 1; 67. Chain; 68. Sprocket 2; 69. Drive rod; 610. Roller. Detailed Implementation
[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0026] like Figure 1-5 As shown, a pulp dewatering device for paper roll production includes a base 1, a support leg 2 fixedly connected to the bottom of the base 1, a drain box 3 fixedly connected to the top of the base 1, a drain outlet 4 provided on the side of the drain box 3, and a filter device 5 provided on the top of the base 1.
[0027] The filter device 5 includes a motor 51, the bottom of which is fixedly connected to the top of the base 1. The output shaft of the motor 51 is fixedly connected to a rotating rod 52. A half gear 53 is fixedly connected to the circumferential surface of the rotating rod 52. A support bar 54 is fixedly connected to the top of the motor 51. A rack 55 is slidably connected to the top of the support bar 54. A push rod 56 is fixedly connected to the back side of the rack 55. A filter plate 57 is fixedly connected to the bottom of the push rod 56.
[0028] The drain tank 3 has a through groove 58 inside. One end of a return spring 59 is fixedly connected to the inner wall of the through groove 58. The other end of the return spring 59 is fixedly connected to the side of the filter plate 57. The function of the through groove 58 is to allow the filter plate 57 to shake.
[0029] A support plate 510 is fixedly connected to the side of the base 1. One end of a tension spring 511 is fixedly connected to the side of the support plate 510. The other end of the tension spring 511 is fixedly connected to the side of the rack 55. The function of the tension spring 511 is to reset when no force is applied.
[0030] The number of through grooves 58 and return springs 59 is set to two, and they are symmetrical about each other along the vertical central axis of the drain box 3. The function of the return springs 59 is to reset when no force is applied.
[0031] According to the above structure, the motor 51 is started first. When the output shaft of the motor 51 rotates, it drives the rotating rod 52 to rotate. When the rotating rod 52 rotates, it drives the half gear 53 to rotate. When the half gear 53 rotates, it drives the rack 55 to move. When the rack 55 moves, it drives the push rod 56 to move. When the push rod 56 moves, it causes the filter plate 57 to shake in the through groove 58. Thus, when the filter plate 57 shakes, it can filter out fine impurities, such as plastic particles, ink residue, and mud in waste paper pulp, and bamboo fragments in bamboo pulp. If these impurities are not intercepted by the filter device 5, they will enter the dewatering zone of the dewatering device 6 with the pulp, which will cause scratches on the surface of the roller 610, resulting in uneven dewatering and shortening the life of the roller 610.
[0032] like Figure 1-5 As shown, the drain tank 3 is equipped with a dehydration device 6. The dehydration device 6 includes a pulley 61. The inner wall of the pulley 61 is fixedly connected to the circumferential surface of the rotating rod 52. The circumferential surface of the pulley 61 is rotatably connected to a belt 62. The inner wall of the belt 62 is drivenly connected to a pulley 63. The pulley 61 and the pulley 63 are connected by the belt 62. A fixing plate 64 is fixedly connected to the front side of the base 1. A rotating rod 65 is rotatably passed through the inside of the fixing plate 64. The inner wall of the pulley 63 is fixedly connected to the circumferential surface of the rotating rod 65.
[0033] A sprocket 66 is fixedly connected to the circumferential surface of the rotating rod 65. A chain 67 is provided on the circumferential surface of the sprocket 66. A sprocket 68 is provided on the inner wall of the chain 67. A drive rod 69 is fixedly passed through the inner wall of the sprocket 68. The drive rod 69 rotates through the interior of the drainage tank 3. A roller 610 is fixedly connected to the top of the drive rod 69. The function of the pulley 61 is to drive the belt 62 to rotate. The function of the belt 62 is to drive the pulley 63 to rotate.
[0034] The circumferential surface of sprocket 66 meshes with the inner wall of chain 67, and the inner wall of chain 67 meshes with the circumferential surface of sprocket 68. The function of sprocket 66 is to drive chain 67 to rotate, and the function of chain 67 is to drive sprocket 68 to rotate.
[0035] According to the above structure, the rotation of the rotating rod 52 drives the pulley 61 to rotate, which in turn drives the belt 62 to rotate, which in turn drives the pulley 63 to rotate, which in turn drives the rotating rod 65 to rotate, which in turn drives the sprocket 66 to rotate, which in turn drives the chain 67 to rotate, which in turn drives the sprocket 68 to rotate, which in turn drives the drive rod 69 to rotate, which in turn drives the roller 610 to rotate. This achieves the purpose of thoroughly dewatering the pulp, avoiding the impact of insufficient dewatering on subsequent processing steps. At the same time, after dewatering, the drain outlet 4 can quickly drain the water from the pulp, preventing the water from moving back into the roller 610 and requiring further drainage.
[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A pulp dewatering device for the production of rolled paper, characterized in that: Includes a base (1), with a support leg (2) fixedly connected to the bottom of the base (1), a drain box (3) fixedly connected to the top of the base (1), a drain outlet (4) provided on the side of the drain box (3), and a filter device (5) provided on the top of the base (1). The filter device (5) includes a motor (51), the bottom of which is fixedly connected to the top of the base (1). The output shaft of the motor (51) is fixedly connected to a rotating rod (52), and a half gear (53) is fixedly connected to the circumferential surface of the rotating rod (52). A support bar (54) is fixedly connected to the top of the motor (51), and a rack (55) is slidably connected to the top of the support bar (54). A push rod (56) is fixedly connected to the back side of the rack (55), and a filter plate (57) is fixedly connected to the bottom of the push rod (56).
2. A pulp dewatering device for use in the production of paper rolls according to claim 1, characterized in that The drainage tank (3) has a through groove (58) inside. One end of a reset spring (59) is fixedly connected to the inner wall of the through groove (58), and the other end of the reset spring (59) is fixedly connected to the side of the filter plate (57).
3. A pulp dewatering device for use in the production of paper, according to claim 2, characterized in that: A support plate (510) is fixedly connected to the side of the base (1), and one end of a tension spring (511) is fixedly connected to the side of the support plate (510). The other end of the tension spring (511) is fixedly connected to the side of the rack (55).
4. A pulp dewatering device for use in the production of paper, according to claim 2, characterized in that: The number of the through groove (58) and the return spring (59) is set to two, and they are symmetrical to each other along the vertical central axis of the drain box (3).
5. A pulp dewatering device for use in the production of paper, according to claim 1, characterized in that: The drain tank (3) is equipped with a dehydration device (6). The dehydration device (6) includes a pulley (61). The inner wall of the pulley (61) is fixedly connected to the circumferential surface of the rotating rod (52). The circumferential surface of the pulley (61) is rotatably connected to a belt (62). The inner wall of the belt (62) is drivenly connected to a pulley (63). The pulley (61) and the pulley (63) are drivenly connected by the belt (62). The front side of the base (1) is fixedly connected to a fixing plate (64). The inside of the fixing plate (64) is rotatably connected to a rotating rod (65). The inner wall of the pulley (63) is fixedly connected to the circumferential surface of the rotating rod (65).
6. A pulp dewatering device for paper roll production according to claim 5, characterized in that: A sprocket (66) is fixedly connected to the circumferential surface of the rotating rod (65). A chain (67) is provided on the circumferential surface of the sprocket (66). A sprocket (68) is provided on the inner wall of the chain (67). A drive rod (69) is fixedly passed through the inner wall of the sprocket (68). The drive rod (69) rotates through the interior of the drainage tank (3). A roller (610) is fixedly connected to the top of the drive rod (69).
7. A pulp dewatering device for use in the production of paper, according to claim 6, characterized in that: The circumferential surface of the first sprocket (66) meshes with the inner wall of the chain (67), and the inner wall of the chain (67) meshes with the circumferential surface of the second sprocket (68).