Cultural paper pulp headbox device

By designing a worm gear and rack drive and an opening/closing assembly, the problems of inconvenient headbox height adjustment and complex opening/closing in traditional headboxes have been solved, enabling precise adjustment and rapid opening/closing of the headbox, thus improving production efficiency and paper quality.

CN223893131UActive Publication Date: 2026-02-10SHAN DONG JIN CAI LUN ZHI YE YOU XIAN GONG SI
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Patent Information

Application Number
CN202520309243.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-02-10
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

Traditional paper pulp headbox devices suffer from inconvenient and inaccurate height adjustment, and complex operation of opening and closing components, which affects production efficiency and paper quality.

Method used

The lifting and opening/closing components, which employ the worm gear and rack transmission principle, use a motor to drive the worm gear to rotate, which in turn drives the long rod and lead screw, enabling precise height adjustment and rapid opening and closing of the headbox. Combined with the cooperation of elastic elements and steel balls, the stability and sealing of the equipment are ensured.

Benefits of technology

It enables precise adjustment of the headbox height and rapid opening and closing, reducing downtime, improving production efficiency, and ensuring paper quality and production stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a culture paper pulp headbox device, relates to headbox technical field, a culture paper pulp headbox device comprises a bottom plate, the top of the bottom plate is provided with a lifting assembly, the lifting assembly comprises a worm gear 1, the outer wall of the worm gear 1 is provided with a fixing member, the inner wall of the fixing member is rotatably connected with a long rod, and the long rod is provided with a rotating shaft. The outer wall of the long rod is rotationally connected with a fixing plate, and a rotating rod is fixedly installed on the outer wall of the long rod. By arranging the lifting assembly comprising the worm gear I, the long rod, the rotating rod, the limiting column, the lifting rod, the clamping plate and the like, the height of the slurry box can be accurately adjusted according to the worm gear and toothed bar transmission principle, the motor drives the worm gear I to rotate and drives the long rod to rotate, and then the rotating rod pushes the limiting column and the lifting rod to stably slide in the shell; and stable lifting operation is conducted on the slurry box through the clamping plates, so that different heights can be adjusted during discharging, and discharging is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of headbox technology, and in particular to a headbox device for cultural paper pulp. Background Technology

[0002] In the papermaking industry, the production of cultural paper has strict requirements for paper quality. It is necessary to spread and distribute the pulp evenly along the width of the paper machine, so that the pressure, speed, flow and concentration of the pulp are consistent on the horizontal direction of the paper machine, and to ensure that the basis weight distribution of the paper is uniform in the transverse direction, so as to avoid the situation that the paper is thick on one side and thin on the other.

[0003] Traditional headbox devices for cultural pulp have many problems in actual use. For example, the height adjustment of the headbox is not convenient and precise enough, making it difficult to adapt to the requirements of different production processes for the pulp level. The opening and closing components are complicated to operate, and it is not possible to open and close the headbox quickly and efficiently when cleaning, maintaining or replacing parts, which affects the efficiency of material output. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0005] The present invention adopts the following technical solution: a cultural pulp headbox device, comprising a base plate, a lifting assembly provided on the top of the base plate, the lifting assembly comprising a worm gear, a fixing member provided on the outer wall of the worm gear, a long rod rotatably connected to the inner wall of the fixing member, a fixing plate rotatably connected to the outer wall of the long rod, a rotating rod fixedly installed on the outer wall of the long rod, a limit post slidably connected to the inner wall of the rotating rod, a lifting rod fixedly installed on the outer wall of the limit post, a housing slidably connected to the outer wall of the lifting rod, and a clamping plate fixedly installed on the outer wall of the lifting rod.

[0006] Preferably, the top of the base plate is provided with an opening and closing assembly, a slide rail is provided on one outer wall of the opening and closing assembly, a headbox body is fixedly mounted on the outer wall of the slide rail, a support frame is fixedly mounted on the outer wall of the headbox body, a push rod is provided on the outer wall of the support frame away from the headbox body, a controller is fixedly mounted on the outer wall of the base plate, an elastic element is fixedly mounted on the inner wall of the slide rail, and a steel ball is fixedly mounted on the outer wall of the elastic element. Here, the opening and closing assembly can control the opening and closing state of the headbox body, the slide rail facilitates the movement of the headbox body, and the support frame and push rod assist in operation.

[0007] Preferably, the outer wall of the worm gear engages with the outer wall of the lead screw, and the long rod is fixedly installed with the worm gear through the fixing member. Here, the motor drives the worm gear to rotate, which in turn drives the long rod to move, resulting in smooth transmission.

[0008] Preferably, the bottom of the fixing plate and the fixing component are fixedly installed to the top of the base plate, the lifting rod is adapted to the outer shell, and the outer wall of the clamping plate is in contact with the outer wall of the headbox body. Here, the fixing plate and the fixing component are fixed to the base plate to provide stable support for the lifting assembly; the lifting rod is adapted to the outer shell to ensure smooth lifting operation.

[0009] Preferably, the opening / closing assembly includes a motor, with a lead screw fixedly mounted on the output end of the motor. A worm gear two meshes with the outer wall of the lead screw, and a round shaft is fixedly mounted on the outer wall of the worm gear two. Here, the motor drives the lead screw to rotate, the lead screw meshes with the worm gear two, and the worm gear two drives the round shaft to rotate, thereby realizing the power transmission and action execution of the opening / closing assembly.

[0010] Preferably, a fixed block is rotatably connected to the outer wall of the circular shaft, a circular gear is fixedly mounted on the outer wall of the second worm gear, a rack meshes with the outer wall of the circular gear, a circular shell is slidably connected to the outer wall of the rack, and a baffle is fixedly mounted on the top of the rack, with a circular groove formed on the outer wall of the baffle. Here, the fixed block provides support for the circular shaft, the meshing of the second worm gear and the rack can further change the transmission direction and achieve speed reduction and torque increase, and the baffle serves as a blocking and positioning device.

[0011] Preferably, the bottom of the motor is fixedly installed to the inner wall of the base plate, the fixing block is fixedly installed to the outer wall of the base plate, and the outer wall of the baffle is in contact with the outer wall of the headbox body. Here, the motor is fixed to the inner wall of the base plate to ensure the stability of the power source; the fixing block is fixed to the base plate to firmly support the round shaft; and the baffle is in contact with the headbox body.

[0012] Preferably, the outer wall of the baffle is slidably connected to the inner wall of the slide rail, the inner diameter of the circular groove is adapted to the outer diameter of the steel ball, and the circular groove is in contact with the outer wall of the steel ball. Here, the slidable connection between the baffle and the slide rail ensures smooth opening and closing movement; the matching and contact between the circular groove and the steel ball provides good buffering and positioning during opening and closing.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting up a lifting assembly including components such as a worm gear, a long rod, a rotating rod, a limiting post, a lifting rod, and a clamping plate, the height of the headbox can be precisely adjusted by utilizing the worm gear and rack transmission principle. The motor drives the worm gear to rotate, which in turn drives the long rod to rotate, thereby causing the rotating rod to push the limiting post and the lifting rod to slide smoothly inside the outer shell. The clamping plate performs stable lifting and lowering operations on the headbox, so that different heights can be adjusted during material unloading, thus facilitating material unloading.

[0015] 2. In this utility model, the motor drives the lead screw in the opening and closing assembly, causing the worm gear two to rotate, which in turn drives the circular shaft and the baffle connected to it to move. The meshing of the rack and the worm gear two, as well as the sliding support of the rack by the circular shell, along with the slide rail, elastic element and steel ball, make the headbox more stable and smooth during the opening and closing process;

[0016] The headbox can be quickly opened and closed when cleaning, maintenance, or component replacement is required, reducing downtime and improving production efficiency. Meanwhile, the baffles make tight contact with the headbox outer wall, and the combination of the circular groove and steel balls ensures the headbox is sealed when closed, preventing pulp leakage and further guaranteeing the quality and stability of paper production. Attached Figure Description

[0017] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a cultural pulp headbox device;

[0018] Figure 2 This utility model provides a schematic diagram of the other side of a cultural pulp headbox device;

[0019] Figure 3 This utility model provides a schematic diagram of the headbox body structure of a cultural pulp headbox device;

[0020] Figure 4 This utility model provides a schematic diagram of the lifting assembly of a cultural pulp headbox device;

[0021] Figure 5 This utility model provides a schematic diagram of the opening and closing components of a cultural pulp headbox device;

[0022] Figure 6 This utility model provides a schematic diagram of a circular trough for a cultural pulp headbox device.

[0023] Legend:

[0024] 1. Base plate; 2. Lifting assembly; 3. Opening and closing assembly; 4. Slide rail; 5. Headbox body; 6. Support frame; 7. Push rod; 8. Controller; 9. Elastic element; 10. Steel ball;

[0025] 201. Worm Gear 1; 202. Fixing Component; 203. Long Rod; 204. Fixing Plate; 205. Rotating Rod; 206. Limiting Post; 207. Lifting Rod; 208. Housing; 209. Clamping Plate;

[0026] 301. Motor; 302. Lead screw; 303. Worm gear II; 304. Round shaft; 305. Fixing block; 306. Gear rack; 307. Circular shell; 308. Baffle; 309. Circular groove; 310. Circular gear. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] Example 1

[0030] Please see Figures 1-6 This utility model provides a technical solution: a cultural pulp headbox device, including a base plate 1, a lifting assembly 2 on the top of the base plate 1, the lifting assembly 2 including a worm gear 201, a fixing member 202 on the outer wall of the worm gear 201, a long rod 203 rotatably connected to the inner wall of the fixing member 202, a fixing plate 204 rotatably connected to the outer wall of the long rod 203, a rotating rod 205 fixedly installed on the outer wall of the long rod 203, a limiting post 206 slidably connected to the inner wall of the rotating rod 205, a lifting rod 207 fixedly installed on the outer wall of the limiting post 206, a housing 208 slidably connected to the outer wall of the lifting rod 207, and a clamping plate 209 fixedly installed on the outer wall of the lifting rod 207.

[0031] The top of the base plate 1 is equipped with an opening and closing assembly 3. A slide rail 4 is provided on one outer wall of the opening and closing assembly 3. The headbox body 5 is fixedly installed on the outer wall of the slide rail 4. A support frame 6 is fixedly installed on the outer wall of the headbox body 5. A push rod 7 is provided on the outer wall of the support frame 6 away from the headbox body 5. A controller 8 is fixedly installed on the outer wall of the base plate 1. An elastic element 9 is fixedly installed on the inner wall of the slide rail 4. A steel ball 10 is fixedly installed on the outer wall of the elastic element 9. Here, the opening and closing assembly 3 can control the opening and closing state of the headbox body 5, the slide rail 4 facilitates the movement of the headbox body 5, the support frame 6 and the push rod 7 assist in operation, the controller 8 facilitates unified control, and the elastic element 9 and the steel ball 10 work together to provide buffering and positioning, ensuring the stability of the headbox body 5 during movement and operation.

[0032] The outer wall of the worm gear 201 meshes with the outer wall of the lead screw 302, and the long rod 203 passes through the fixing member 202 and is fixedly installed with the worm gear 201. Here, the motor 301 drives the worm gear 201 to rotate, which in turn drives the long rod 203 to move. This transmission method is smooth and precise, and can accurately realize the lifting action of the lifting assembly 2, ensuring the reliability of equipment operation.

[0033] The bottoms of the fixing plate 204 and the fixing component 202 are fixedly installed to the top of the base plate 1. The lifting rod 207 is adapted to the outer shell 208, and the outer wall of the clamping plate 209 is in contact with the outer wall of the headbox body 5. Here, the fixing plate 204 and the fixing component 202 are fixed on the base plate 1 to provide stable support for the lifting assembly 2; the lifting rod 207 is adapted to the outer shell 208 to ensure smooth lifting action; the clamping plate 209 is in contact with the headbox body 5 and can firmly clamp and position it to ensure the stability of the headbox body 5 during the lifting process.

[0034] The opening / closing assembly 3 includes a motor 301, with a lead screw 302 fixedly mounted at the output end of the motor 301. A worm gear 303 meshes with the outer wall of the lead screw 302, and a round shaft 304 is fixedly mounted on the outer wall of the worm gear 303. Here, the motor 301 drives the lead screw 302 to rotate, the lead screw 302 meshes with the worm gear 303, and the worm gear 303 drives the round shaft 304 to rotate, realizing the power transmission and action execution of the opening / closing assembly 3. The structure is reasonably designed, with high transmission efficiency, and facilitates the opening and closing operation of the headbox body 5.

[0035] A fixed block 305 is rotatably connected to the outer wall of the circular shaft 304. A circular gear 310 is fixedly installed on the outer wall of the worm gear 303. A rack 306 meshes with the outer wall of the circular gear 310. A circular shell 307 is slidably connected to the outer wall of the rack 306. A baffle 308 is fixedly installed on the top of the rack 306. A circular groove 309 is formed on the outer wall of the baffle 308. Here, the fixed block 305 provides support for the circular shaft 304. The meshing of the worm gear 303 and the rack 306 can further change the transmission direction and achieve speed reduction and torque increase. The baffle 308 plays a blocking and positioning role. The circular groove 309 is used to cooperate with the steel ball 10 to achieve more precise positioning and buffering effect, thereby improving the overall performance of the equipment.

[0036] The bottom of the motor 301 is fixedly installed to the inner wall of the base plate 1, the fixing block 305 is fixedly installed to the outer wall of the base plate 1, and the outer wall of the baffle 308 is in contact with the outer wall of the headbox body 5. Here, the motor 301 is fixed to the inner wall of the base plate 1 to ensure the stability of the power source; the fixing block 305 is fixed to the base plate 1 to firmly support the round shaft 304; the baffle 308 is in contact with the headbox body 5 to ensure effective blocking and positioning during opening and closing, making the equipment operation safer and more reliable.

[0037] The outer wall of the baffle 308 is slidably connected to the inner wall of the slide rail 4. The inner diameter of the circular groove 309 is matched with the outer diameter of the steel ball 10, and the circular groove 309 contacts the outer wall of the steel ball 10. Here, the baffle 308 is slidably connected to the slide rail 4 to ensure smooth opening and closing; the circular groove 309 is matched and contacts the steel ball 10, playing a good buffering and positioning role during opening and closing, avoiding damage to the equipment due to collision, and extending the service life of the equipment.

[0038] Working principle: Pressing the controller 8 starts the motor 301, which drives the worm gear 201 to rotate. The worm gear 201 then drives the long rod 203 to rotate, which in turn drives the rotating rod 205 to rotate. Since the limiting post 206 slides inside the rotating rod 205, the rotation of the rotating rod 205 pushes the limiting post 206 upward. Simultaneously, the lifting rod 207 moves upward along with the limiting post 206 on the inner wall of the outer shell 208. The lifting rod 207 is fixedly connected to the clamping plate 209. At this time, the clamping plate 209 moves along with the lifting rod 207. When the headbox body 5 is unloading, one end of the headbox body 5 can be raised, so that the headbox body 5 tilts to facilitate unloading. By starting the output end of the motor 301 in the opening and closing assembly 3, the lead screw 302 is driven to rotate, so that the lead screw 302 drives the worm gear 303 to start rotating. The rotation of the worm gear 303 drives the circular shaft 304 to rotate in the fixed block 305. Thus, when the worm gear 303 rotates, it drives the circular gear 310 to move the rack 306. The toothed rod 306 slides upward within the circular shell 307. Simultaneously, the baffle 308 moves upward with the toothed rod 306, pushing the headbox body 5 to slide on the slide rail 4, thus opening and closing the headbox body 5. At this time, the baffle 308 can be pushed out of the outer wall of the slide rail 4, allowing the slurry to flow out. After the material is fed, the motor 301 is restarted, causing the lead screw 302 to rotate. The lead screw 302 then meshes with the second worm gear 303 and the first worm gear 201. The second worm gear 303 then drives the toothed rod 306. The circular shell 307 descends along its inner wall, causing the baffle 308 to descend along the inner wall of the slide rail 4. This allows the circular groove 309 to contact the outer wall of the steel ball 10, thus securing the baffle 308 to the outer wall of the headbox body 5 with the steel ball 10. At this time, the worm gear 201 drives the long rod 203 and the rotating rod 205 to rotate, causing the rotating rod 205 to drive the limiting post 206 to descend the lifting rod 207 along the inner wall of the shell 208. The clamping plate 209 then drives the headbox body 5 to descend, facilitating its next use.

[0039] 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 headbox device for cultural paper pulp, comprising a base plate (1), characterized in that: The top of the base plate (1) is provided with a lifting assembly (2). The lifting assembly (2) includes a worm gear (201). The outer wall of the worm gear (201) is provided with a fixing member (202). The inner wall of the fixing member (202) is rotatably connected to a long rod (203). The outer wall of the long rod (203) is rotatably connected to a fixing plate (204). The outer wall of the long rod (203) is fixedly installed with a rotating rod (205). The inner wall of the rotating rod (205) is slidably connected to a limit post (206). The outer wall of the limit post (206) is fixedly installed with a lifting rod (207). The outer wall of the lifting rod (207) is slidably connected to a shell (208). The outer wall of the lifting rod (207) is fixedly installed with a clamping plate (209).

2. The cultural pulp headbox device according to claim 1, characterized in that: The top of the base plate (1) is provided with an opening and closing assembly (3). A slide rail (4) is provided on one side of the outer wall of the opening and closing assembly (3). A headbox body (5) is fixedly installed on the outer wall of the slide rail (4). A support frame (6) is fixedly installed on the outer wall of the headbox body (5). A push rod (7) is provided on the outer wall of the support frame (6) away from the headbox body (5). A controller (8) is fixedly installed on the outer wall of the base plate (1). An elastic element (9) is fixedly installed on the inner wall of the slide rail (4). A steel ball (10) is fixedly installed on the outer wall of the elastic element (9).

3. The cultural pulp headbox device according to claim 1, characterized in that: The outer wall of the worm gear (201) meshes with the outer wall of the lead screw (302), and the long rod (203) passes through the fixing member (202) and is fixedly installed with the worm gear (201).

4. The cultural pulp headbox device according to claim 1, characterized in that: The bottom of the fixing plate (204) and the fixing member (202) are fixedly installed to the top of the base plate (1), the lifting rod (207) is adapted to the outer shell (208), and the outer wall of the clamping plate (209) is in contact with the outer wall of the headbox body (5).

5. The cultural pulp headbox device according to claim 2, characterized in that: The opening and closing assembly (3) includes a motor (301), and a lead screw (302) is fixedly installed at the output end of the motor (301). A worm gear (303) meshes with the outer wall of the lead screw (302). A round shaft (304) is fixedly installed on the outer wall.

6. The cultural pulp headbox device according to claim 5, characterized in that: The outer wall of the circular shaft (304) is rotatably connected to a fixed block (305), the outer wall of the worm gear (303) is fixedly installed with a circular gear (310), the outer wall of the circular gear (310) is meshed with a rack (306), the outer wall of the rack (306) is slidably connected to a circular shell (307), the top of the rack (306) is fixedly installed with a baffle (308), and the outer wall of the baffle (308) is provided with a circular groove (309).

7. A headbox device for cultural pulp according to claim 6, characterized in that: The bottom of the motor (301) is fixedly installed on the inner wall of the base plate (1), the fixing block (305) is fixedly installed on the outer wall of the base plate (1), and the outer wall of the baffle (308) is in contact with the outer wall of the headbox body (5).

8. A headbox device for cultural pulp according to claim 7, characterized in that: The outer wall of the baffle (308) is slidably connected to the inner wall of the slide rail (4), the inner diameter of the circular groove (309) is adapted to the outer diameter of the steel ball (10), and the circular groove (309) is in contact with the outer wall of the steel ball (10).