Paper pulp stirring device for corrugated board production

By using a servo motor-driven spindle and an adjustable stirring rod assembly, the problem of fixed stirring rod length and angle in existing technologies has been solved, achieving uniform stirring of pulp in corrugated cardboard production and improving pulp uniformity and stirring efficiency.

CN224057155UActive Publication Date: 2026-03-31SHANGHAI YONGSHENG PACKING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In existing pulp mixing devices for corrugated cardboard production, the length of the mixing support rod is fixed and the angle between it and the main shaft is fixed, which results in some areas of pulp not being fully mixed, affecting the uniformity of the pulp.

Method used

The spindle, driven by a servo motor, allows for adjustment of the length and angle of the mixing support assembly through the cooperation of the lifting lugs, support rods, connecting blocks, and inner rods. Combined with the scraper ring cleaning function, it ensures the uniformity of pulp in the mixing tank.

Benefits of technology

The length and angle of the stirring support assembly can be flexibly adjusted to ensure that the pulp in each area of ​​the mixing tank is fully mixed, improve the uniformity of the pulp, and prevent pulp from adhering to the surface of the support, thus ensuring the mixing effect.

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Abstract

The utility model discloses a paper pulp stirring device for corrugated board production, a sealing cover is fixedly arranged at the top of a stirring tank, a servo motor is fixedly arranged in the middle of the top of the sealing cover, and the paper pulp stirring device relates to the technical field of corrugated board production. According to the paper pulp stirring device for corrugated board production, through cooperation of a lifting lug, a supporting rod, a connecting block and an inner rod, a stirring supporting rod assembly rotates along with different rotating speeds of a servo motor, the included angle between the stirring supporting rod assembly and the main shaft changes accordingly, and meanwhile the inner rod slides out along the interior of the supporting rod under the action of centrifugal force; the overall length of the stirring supporting rod assembly can be rapidly changed according to needs, paper pulp in all areas in a stirring tank is fully stirred, the uniformity of the paper pulp is guaranteed, and due to the arrangement of a scraping ring, along with the change of the included angle between the supporting rod and the main shaft, the surface of the supporting rod can be scraped in time under the action of the gravity of the scraping ring; excessive paper pulp is prevented from adhering to the surfaces of the supporting rods and the normal stirring effect is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard production technology, specifically to a pulp mixing device for corrugated cardboard production. Background Technology

[0002] With the rapid development of e-commerce and logistics, corrugated cardboard has been widely used as an ideal packaging material. In the production process of corrugated cardboard, a pulp mixing device is required. The pulp mixing device usually includes a main shaft and several mixing rods. The mixing rods are evenly distributed on the outside of the main shaft. The motor drives the main shaft to rotate, and the mixing rods rotate accordingly to perform the mixing operation.

[0003] Existing pulp mixing devices for corrugated cardboard production have fixed-length internal mixing rods, which cannot be quickly adjusted as needed. Furthermore, the fixed angle between the mixing rods and the main shaft results in some areas of pulp not being fully mixed, affecting the uniformity of the pulp. Therefore, it is necessary to provide a pulp mixing device for corrugated cardboard production to solve the above-mentioned technical problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pulp mixing device for corrugated cardboard production. It solves the problems of fixed length of the mixing rod inside the device, which makes it impossible to quickly adjust the length of the mixing rod as needed, and fixed angle between the mixing rod and the main shaft, which may result in insufficient mixing of pulp in some areas, affecting the uniformity of the pulp.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pulp mixing device for corrugated cardboard production, comprising a mixing tank, a sealing cover fixedly mounted on the top of the mixing tank, a servo motor fixedly mounted in the middle of the top of the sealing cover, the output shaft of the servo motor passing through the sealing cover and fixedly mounted on a main shaft, the bottom of the main shaft rotatably connected to the bottom of the inner cavity of the mixing tank, several lifting lugs evenly fixedly mounted on the outside of the main shaft, and a stirring support rod assembly rotatably mounted on the end of each lifting lug away from the main shaft, the stirring support rod assembly being used to stir the pulp for corrugated cardboard production, a discharge pipe fixedly mounted on the bottom left side of the mixing tank, a valve mounted on the right side of the discharge pipe, a control panel fixedly mounted on the front end of the mixing tank, several support legs evenly fixedly mounted around the bottom outer edge of the mixing tank, and a feed nozzle fixedly mounted on the front end of the top of the sealing cover.

[0006] Preferably, each of the stirring rod assemblies includes a rod, which is rotatably connected to a lifting lug, and the upper and lower walls of the inner cavity of the rod are provided with sliding grooves.

[0007] Preferably, a connecting seat is fixedly provided at the end of the support rod away from the main shaft, and a buffer pad is fixedly provided at the end of the connecting seat away from the main shaft. A slider is slidably provided inside each of the sliding grooves.

[0008] Preferably, a connecting block is fixedly disposed between the two sliders, and an inner rod is fixedly disposed in the middle of the end of the connecting block away from the main shaft.

[0009] Preferably, the inner rod slides through the support rod and the connecting seat, and a traction ball is fixedly provided at the end of the inner rod away from the main shaft.

[0010] Preferably, the end of the connecting block near the main shaft is fixedly connected to the inner wall of the support rod by a spring, and a scraper ring is slidably sleeved on the outside of the support rod.

[0011] Beneficial effects

[0012] This invention provides a pulp mixing device for corrugated cardboard production. Compared with the prior art, it has the following advantages:

[0013] (1) The pulp mixing device for corrugated cardboard production is connected by a rotating support rod and a lifting lug. The upper and lower walls of the inner cavity of the support rod are provided with grooves. A connecting seat is fixedly installed at the end of the support rod away from the main shaft. A buffer pad is fixedly installed at the end of the connecting seat away from the main shaft. A slider is slidably installed inside each groove. A connecting block is fixedly installed between two sliders. An inner rod is fixedly installed in the middle of the end of the connecting block away from the main shaft. The inner rod slides through the support rod and the connecting seat. A traction ball is fixedly installed at the end of the inner rod away from the main shaft. Through the mutual cooperation between the lifting lug, the support rod, the connecting block and the inner rod, the mixing support rod assembly rotates with different servo motor speeds, and the angle between it and the main shaft changes accordingly. At the same time, the inner rod slides out along the inside of the support rod under the action of centrifugal force. The overall length of the mixing support rod assembly can be changed quickly as needed to fully mix the pulp in each area of ​​the mixing tank and ensure the uniformity of the pulp.

[0014] (2) The pulp mixing device for corrugated cardboard production is fixedly connected to the inner wall of the support rod by a spring at one end of the connecting block near the main shaft. The support rod is slidably fitted with a scraper ring. As the angle between the support rod and the main shaft changes, the scraper ring can clean the surface of the support rod in time under its own weight, so as to avoid too much pulp adhering to the surface of the support rod and ensure normal mixing effect. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a front view of the stirring support rod assembly of this utility model;

[0018] Figure 4 This is a cross-sectional view of the stirring support rod assembly of this utility model.

[0019] In the diagram: 1. Mixing tank; 2. Sealing cover; 3. Servo motor; 4. Main shaft; 5. Lifting lug; 6. Mixing support rod assembly; 61. Support rod; 62. Slide groove; 63. Connecting seat; 64. Buffer pad; 65. Sliding block; 66. Connecting block; 67. Inner rod; 68. Traction ball; 69. Spring; 610. Scraper ring; 7. Discharge pipe; 8. Control panel; 9. Support leg; 10. Feed nozzle. Detailed Implementation

[0020] 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.

[0021] This utility model provides two technical solutions:

[0022] like Figures 1-2 The first embodiment is shown: a pulp mixing device for corrugated cardboard production, including a mixing tank 1, a sealing cover 2 fixedly installed on the top of the mixing tank 1, a servo motor 3 fixedly installed in the middle of the top of the sealing cover 2, the output shaft of the servo motor 3 passing through the sealing cover 2 and fixedly installed with a main shaft 4, the bottom of the main shaft 4 being rotatably connected to the bottom of the inner cavity of the mixing tank 1, a plurality of lifting lugs 5 evenly fixedly installed on the outside of the main shaft 4, and a stirring support rod assembly 6 rotatably installed at the end of each lifting lug 5 away from the main shaft 4, the stirring support rod assembly 6 being used to stir the pulp for corrugated cardboard production, a discharge pipe 7 fixedly installed on the bottom left side of the mixing tank 1, a valve installed on the right side of the discharge pipe 7, a control panel 8 fixedly installed on the front end of the mixing tank 1, a plurality of support legs 9 evenly fixedly installed around the bottom outer side of the mixing tank 1, and a feed nozzle 10 fixedly installed on the front end of the top of the sealing cover 2.

[0023] Through the cooperation between the lifting lug 5, support rod 61, connecting block 66 and inner rod 67, the stirring support rod assembly 6 rotates as the servo motor 3 rotates, and the angle between it and the main shaft 4 changes accordingly. At the same time, the inner rod 67 slides out along the inside of the support rod 61 under the action of centrifugal force, which can quickly change the overall length of the stirring support rod assembly 6 as needed, so as to fully stir the pulp in each area of ​​the mixing tank 1 and ensure the uniformity of the pulp.

[0024] like Figures 3-4 The second embodiment is shown, and its main difference from the first embodiment is that: a pulp mixing device for corrugated cardboard production, each mixing support rod assembly 6 includes a support rod 61, the support rod 61 is rotatably connected to the lifting lug 5, the upper and lower walls of the inner cavity of the support rod 61 are provided with sliding grooves 62, the end of the support rod 61 away from the main shaft 4 is fixedly provided with a connecting seat 63, the end of the connecting seat 63 away from the main shaft 4 is fixedly provided with a buffer pad 64, the inside of each sliding groove 62 is slidably provided with a slider 65, the connecting block 66 is fixedly provided between two sliders 65, the middle of the end of the connecting block 66 away from the main shaft 4 is fixedly provided with an inner rod 67, the inner rod 67 slides through the support rod 61 and the connecting seat 63, the end of the inner rod 67 away from the main shaft 4 is fixedly provided with a traction ball 68, the end of the connecting block 66 near the main shaft 4 is fixedly connected to the inner wall of the support rod 61 by a spring 69, and a scraper ring 610 is slidably sleeved on the outside of the support rod 61.

[0025] The scraper ring 610 is designed so that as the angle between the support rod 61 and the main shaft 4 changes, the scraper ring 610 can clean the surface of the support rod 61 in time under its own weight, avoiding excessive pulp adhering to the surface of the support rod 61 and ensuring normal mixing effect.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] In use, pulp, water, and additives are fed into the mixing tank 1 through the feed nozzle 10. Then, the servo motor 3 is started, driving the main shaft 4 to rotate. Several stirring rod assemblies 6 rotate accordingly, stirring the pulp and water inside the mixing tank 1 to achieve mixing. During the process, the speed of the servo motor 3 is adjusted as needed. As the speed of the servo motor 3 changes, the stirring rod assembly 6 rotates, and the angle between it and the main shaft 4 also changes. At the same time, the inner rod 67 slides out along the inside of the support rod 61 under the action of centrifugal force, quickly changing the overall length of the stirring rod assembly 6 as needed, and changing the angle between the stirring rod assembly 6 and the main shaft 4. This fully stirs the pulp in each area of ​​the mixing tank 1, forming a uniform pulp mixture. During the process, as the angle between the support rod 61 and the main shaft 4 changes, the scraper ring 610 can promptly scrape the surface of the support rod 61 under its own gravity, preventing excessive pulp from adhering to the surface of the support rod 61.

[0028] 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.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pulp stirring device for corrugated board production, comprising a stirring tank (1), characterized in that: The top of the stirring tank (1) is fixedly provided with a sealing cover (2), the middle of the top of the sealing cover (2) is fixedly provided with a servo motor (3), the output shaft of the servo motor (3) penetrates through the sealing cover (2) and is fixedly provided with a main shaft (4), the bottom of the main shaft (4) is rotatably connected to the inner cavity bottom of the stirring tank (1), the outer part of the main shaft (4) is uniformly fixedly provided with a plurality of lifting lugs (5), the end of each lifting lug (5) away from the main shaft (4) is rotatably provided with a stirring branch rod assembly (6), the stirring branch rod assembly (6) is used for stirring paper pulp for corrugated paperboard production, the left bottom of the stirring tank (1) is fixedly provided with a discharge pipe (7), the right part of the discharge pipe (7) is provided with a valve, the front end of the stirring tank (1) is fixedly provided with a control panel (8), the bottom outer side of the stirring tank (1) is uniformly fixedly provided with a plurality of supporting legs (9), the top front end of the sealing cover (2) is fixedly provided with a feeding nozzle (10).

2. The paper pulp stirring device for corrugated paperboard production according to claim 1, characterized in that: Each stirring branch rod assembly (6) comprises a branch rod (61), which is rotatably connected between the lifting lug (5), and the inner cavity of the branch rod (61) is provided with a sliding groove (62) on the upper and lower walls.

3. The paper pulp stirring device for corrugated paperboard production according to claim 2, characterized in that: The end of the branch rod (61) away from the main shaft (4) is fixedly provided with an adapter seat (63), the end of the adapter seat (63) away from the main shaft (4) is fixedly provided with a buffer pad (64), and the inner part of each sliding groove (62) is slidably provided with a sliding block (65).

4. The paper pulp stirring device for corrugated paperboard production according to claim 3, characterized in that: The adapter block (66) is fixedly provided between the two sliding blocks (65), and the middle of the end of the adapter block (66) away from the main shaft (4) is fixedly provided with an inner rod (67).

5. The paper pulp stirring device for corrugated paperboard production according to claim 4, characterized in that: The inner rod (67) slidably penetrates between the branch rod (61) and the adapter seat (63), and the end of the inner rod (67) away from the main shaft (4) is fixedly provided with a traction ball (68).

6. The paper pulp stirring device for corrugated paperboard production according to claim 5, characterized in that: The end of the adapter block (66) close to the main shaft (4) is fixedly connected with the inner wall of the branch rod (61) through a spring (69), and the outer part of the branch rod (61) is slidably sleeved with a scraping ring (610).