Mixing device with good uniformity for production of surface sizing agent

Abstract

The utility model discloses a mixing device with good uniformity for producing a surface sizing agent, which belongs to the technical field of sizing agents and comprises a mixing barrel, a partition plate is fixedly mounted on the inner side wall of the mixing barrel, a defoaming component is arranged in the mixing barrel, and a stirring component is arranged in the mixing barrel. According to the device, the defoaming assembly is arranged, meanwhile, a reciprocating lead screw drives a first bevel gear to rotate, the first bevel gear drives second bevel gears on the two sides to rotate, the second bevel gears drive corresponding driving rods to rotate, and under the elastic force of a telescopic spring, a vibration rod is driven through a circular ring to impact and vibrate a partition plate; the raw materials are vibrated to generate bubbles for defoaming, the existence of the bubbles may cause the nonuniform internal structure of the sizing agent and influence the quality of the final product, the elimination of the bubbles is beneficial to ensuring the consistency and stability of the sizing agent, and through effective defoaming measures, not only can the production efficiency be improved, but also the production cost can be reduced due to reduction of the loss of the raw materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of sizing agents, and particularly relates to a mixing device for producing surface sizing agents with good uniformity. Background Art

[0002] A sizing agent is a chemical used in the manufacturing process of paper and paperboard. It is mainly used to change the surface properties of paper to improve its water resistance, printing suitability, and other physical properties. The sizing agent can be added to the pulp or coated on the surface of the paper or paperboard. Such chemicals have hydrophilic groups and hydrophobic groups, and on the fiber surface, the outer side is oriented with hydrophobic groups, making the paper hydrophobic and resistant to fluid penetration.

[0003] The Chinese patent discloses a dispersion device for producing surface sizing agents (CN201520302383.8), which includes a tank body, a stirring device arranged at the top of the tank body, a feeding port arranged on one side of the tank body, a bactericide adding port and a water adding port arranged on the other side of the tank body; a weighing platform and a discharge pipe arranged at the bottom of the tank body; a screw conveyor is installed at the feeding port; the weighing platform and the screw conveyor are respectively connected to a control device. The dispersion device for producing surface sizing agents of the utility model has a high degree of automation in the working process, accurate metering, and can disperse the raw materials evenly through the stirring device. After dispersion, it is sent to the storage tank through a filter to ensure that the conveyed material has no precipitation, floating matter, and lumps; improving product quality.

[0004] The Chinese patent discloses a mixing device for preparing a neutral sizing agent for papermaking (CN202020967320.5), which includes a mixing cylinder body. The internal part of the mixing cylinder body is provided with a cavity in a cylindrical structure. Inside the cavity, a mixing chamber one and a mixing chamber two are coaxially arranged from top to bottom. A frustum-shaped baffle with a wider top and a narrower bottom is arranged between the mixing chamber one and the mixing chamber two. A stirring shaft is coaxially arranged in the mixing cylinder body, and a vertical discharge pipe is installed at the center of the bottom of the mixing cylinder body. The utility model adds solid powder raw materials and liquid reagents into the mixing cylinder body through different feeding ports by arranging a solid powder feeding pipe and a liquid feeding hopper on the mixing cylinder body. By arranging a material leveling mechanism and a material scattering mechanism below the solid powder feeding pipe, it is convenient to disperse the raw materials. By arranging the mixing chamber one equipped with a stirring rod one and a stirring rod three, and the mixing chamber two equipped with a spiral stirring paddle and a stirring rod two, the uniformity of material mixing is improved, the mixing time is shortened, and thus the working efficiency is improved. Nowadays, in the production of sizing agents, a large number of bubbles may be generated in the mixing step of raw materials. These bubbles will affect the performance and stability of the sizing agent, resulting in uneven internal structure of the sizing agent, directly affecting the output quality, reducing the production efficiency, and often consuming a lot of time in the mixing of raw materials. Therefore, a mixing device for producing surface sizing agents with good uniformity is proposed. Summary of the Utility Model

[0005] The object of the utility model is to provide a mixing device for producing a surface sizing agent with good uniformity, which is proposed to solve the problem that a large number of bubbles may be generated in the mixing step of raw materials, and these bubbles will affect the performance and stability of the sizing agent.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a mixing device for producing a surface sizing agent with good uniformity, including a mixing cylinder, a partition board is fixedly installed on the inner side wall of the mixing cylinder, a defoaming component is arranged inside the mixing cylinder, and a stirring component is arranged inside the mixing cylinder;

[0007] The defoaming component includes a bracket and a driving rod. The lower surface of the bracket is fixedly connected to the upper surface of the mixing cylinder. One end of the driving rod is rotatably connected to the inner side wall of the mixing cylinder, and a driving motor is fixedly installed on the inner wall of the bracket.

[0008] As a further description of the above technical scheme:

[0009] The output end of the driving motor is fixedly installed with a reciprocating lead screw, and one end of the reciprocating lead screw extends outside the lower surface of the partition board and is fixedly installed with a first bevel gear.

[0010] As a further description of the above technical scheme:

[0011] The other end of the driving rod is fixedly installed with a second bevel gear. The first bevel gear is meshed with the second bevel gear. A half gear is fixedly installed on the outer wall of the driving rod. A support plate is fixedly installed on the inner side wall of the mixing cylinder. A telescopic spring is fixedly installed on the lower surface of the support plate.

[0012] As a further description of the above technical scheme:

[0013] One end of the telescopic spring is fixedly installed with a ring. A vibrating rod is slidably installed on the inner wall of the support plate. One end of the vibrating rod extends outside the upper surface of the support plate and is attached to the lower surface of the partition board. The other end of the vibrating rod passes through the inside of the telescopic spring and extends outside the lower surface of the ring. The inner wall of the ring is fixedly connected to the outer wall of the vibrating rod. A first toothed belt is fixedly installed at the other end of the vibrating rod. The half gear is meshed with the first toothed belt.

[0014] As a further description of the above technical scheme:

[0015] The stirring component includes a threaded sleeve and a second toothed belt. The inner wall of the threaded sleeve is threadedly connected to the outer surface of the reciprocating lead screw. One end of the second toothed belt is fixedly connected to the upper surface of the partition board. A limiting rod is fixedly installed on the upper surface of the partition board. The outer wall of the limiting rod is slidably connected to the inner wall of the threaded sleeve.

[0016] As a further description of the above technical solution:

[0017] A connecting rod is rotatably installed on the side wall of the threaded sleeve. One end of the connecting rod is fixedly installed with a gear. A plurality of stirring blades are fixedly installed on the outer surface of the connecting rod. The gear is meshed with the second toothed belt.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0019] 1. In the present utility model, by providing a defoaming component, at the same time, the reciprocating lead screw drives the first bevel gear to rotate, the first bevel gear drives the second bevel gears on both sides to rotate, the second bevel gears drive the corresponding driving rods to rotate, the driving rods drive the half gears to rotate, the half gears drive the first toothed belt to move, the first toothed belt drives the vibrating rod to move, the vibrating rod stretches the telescopic spring through the circular ring and the support plate. When the gear of the half gear disengages from the first toothed belt, under the elastic force of the telescopic spring, the vibrating rod drives the partition board to vibrate by the circular ring, so as to vibrate out the generated bubbles from the raw materials for defoaming. The existence of foam may cause the internal structure of the sizing agent to be uneven, affecting the quality of the final product. Eliminating foam helps to ensure the consistency and stability of the sizing agent. Through effective defoaming measures, not only can the production efficiency be improved, but also the production cost can be reduced due to the reduction of raw material loss.

[0020] 2. In the present utility model, by providing a stirring component, when mixing the raw materials for sizing agent production, pour the raw materials into the mixing cylinder. At this time, start the driving motor on the bracket. The driving motor drives the reciprocating lead screw to rotate. Under the limitation of the limiting rod, the reciprocating lead screw drives the threaded sleeve to reciprocate through the thread. The threaded sleeve drives the connecting rod to move. The connecting rod drives the gear to rotate on the second toothed belt. Furthermore, while the gear rotates, the connecting rod is driven to rotate. The connecting rod drives the stirring blades to stir and mix the raw materials. Stirring can help the raw materials to be evenly dispersed, so that the raw material components in the sizing agent can be mixed, avoiding local concentration differences, so as to make the quality and performance of the final product consistent. Good stirring can increase the contact opportunity between raw materials, accelerate the reaction rate, make the reaction complete, and improve the reaction efficiency. Description of the Drawings

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a mixing device for producing a surface sizing agent with good uniformity.

[0022] Figure 2 It is an internal three-dimensional structural schematic diagram of a mixing device for producing a surface sizing agent with good uniformity.

[0023] Figure 3Schematic diagram of the partial three-dimensional exploded structure of the defoaming component of a mixing device for producing a sizing agent with good uniformity.

[0024] Figure 4 Schematic diagram of the partial three-dimensional exploded structure of the stirring component of a mixing device for producing a sizing agent with good uniformity.

[0025] Legend:

[0026] 1. Mixing cylinder; 2. Defoaming component; 21. Bracket; 22. Driving motor; 23. Reciprocating lead screw; 24. First bevel gear; 25. Driving rod; 26. Second bevel gear; 27. Half gear; 28. Support plate; 29. Tension spring; 210. Ring; 211. First toothed belt; 212. Vibrating rod; 3. Partition board; 4. Stirring component; 41. Threaded sleeve; 42. Limiting rod; 43. Connecting rod; 44. Gear; 45. Second toothed belt; 46. Stirring blade. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-4 , the present invention provides a technical solution: a mixing device for producing a sizing agent with good uniformity, including a mixing cylinder 1, a partition board 3 is fixedly installed on the inner side wall of the mixing cylinder 1, a defoaming component 2 is arranged inside the mixing cylinder 1, and a stirring component 4 is arranged inside the mixing cylinder 1;

[0029] The defoaming component 2 includes a bracket 21 and a drive rod 25. The lower surface of the bracket 21 is fixedly connected to the upper surface of the mixing cylinder 1. One end of the drive rod 25 is rotatably connected to the inner side wall of the mixing cylinder 1. A drive motor 22 is fixedly installed on the inner wall of the bracket 21. The output end of the drive motor 22 is fixedly installed with a reciprocating lead screw 23. One end of the reciprocating lead screw 23 extends outside the lower surface of the partition plate 3 and is fixedly installed with a first bevel gear 24. The other end of the drive rod 25 is fixedly installed with a second bevel gear 26. The first bevel gear 24 is meshed with the second bevel gear 26. A half gear 27 is fixedly installed on the outer wall of the drive rod 25. A support plate 28 is fixedly installed on the inner side wall of the mixing cylinder 1. A telescopic spring 29 is fixedly installed on the lower surface of the support plate 28. One end of the telescopic spring 29 is fixedly installed with a ring 210. A vibrating rod 212 is slidably installed on the inner wall of the support plate 28. One end of the vibrating rod 212 extends outside the upper surface of the support plate 28 and abuts against the lower surface of the partition plate 3. The other end of the vibrating rod 212 passes through the inside of the telescopic spring 29 and extends outside the lower surface of the ring 210. The inner wall of the ring 210 is fixedly connected to the outer wall of the vibrating rod 212. A first toothed belt 211 is fixedly installed at the other end of the vibrating rod 212. The half gear 27 is meshed with the first toothed belt 211.

[0030] The specific implementation method is as follows: At the same time, the reciprocating lead screw 23 drives the first bevel gear 24 to rotate. The first bevel gear 24 drives the second bevel gears 26 on both sides to rotate. The second bevel gears 26 drive the corresponding drive rods 25 to rotate. The drive rods 25 drive the half gears 27 to rotate. The half gears 27 drive the first toothed belts 211 to move. The first toothed belts 211 drive the vibrating rods 212 to move. The vibrating rods 212 stretch the telescopic springs 29 through the rings 210 and the support plates 28. When the gears of the half gears 27 disengage from the first toothed belts 211, under the elastic force of the telescopic springs 29, the vibrating rods 212 are driven by the rings 210 to impact and vibrate the partition plate 3, thereby vibrating out the generated bubbles from the raw materials for defoaming.

[0031] The stirring component 4 includes a threaded sleeve 41 and a second toothed belt 45. The inner wall of the threaded sleeve 41 is threadedly connected to the outer surface of the reciprocating lead screw 23. One end of the second toothed belt 45 is fixedly connected to the upper surface of the partition plate 3. A limiting rod 42 is fixedly installed on the upper surface of the partition plate 3. The outer wall of the limiting rod 42 is slidably connected to the inner wall of the threaded sleeve 41. A connecting rod 43 is rotatably installed on the side wall of the threaded sleeve 41. One end of the connecting rod 43 is fixedly installed with a gear 44. A plurality of stirring blades 46 are fixedly installed on the outer surface of the connecting rod 43. The gear 44 is meshed with the second toothed belt 45.

[0032] The specific implementation method is as follows: When mixing the raw materials for sizing agent production, pour the raw materials into the mixing cylinder 1. At this time, start the drive motor 22 on the bracket 21. The drive motor 22 drives the reciprocating lead screw 23 to rotate. Under the limitation of the limiting rod 42, the reciprocating lead screw 23 drives the threaded sleeve 41 to reciprocate through the thread. The threaded sleeve 41 drives the connecting rod 43 to move. The connecting rod 43 drives the gear 44 to rotate on the second toothed belt 45. Furthermore, while the gear 44 rotates, it drives the connecting rod 43 to rotate. The connecting rod 43 drives the stirring blade 46 to stir and mix the raw materials.

[0033] Working principle: When mixing the raw materials for sizing agent production, pour the raw materials into the mixing cylinder 1. At this time, start the drive motor 22 on the bracket 21. The drive motor 22 drives the reciprocating lead screw 23 to rotate. Under the limitation of the limiting rod 42, the reciprocating lead screw 23 drives the threaded sleeve 41 to reciprocate through the thread. The threaded sleeve 41 drives the connecting rod 43 to move. The connecting rod 43 drives the gear 44 to rotate on the second toothed belt 45. Furthermore, while the gear 44 rotates, it drives the connecting rod 43 to rotate. The connecting rod 43 drives the stirring blade 46 to stir and mix the raw materials. At the same time, the reciprocating lead screw 23 drives the first bevel gear 24 to rotate. The first bevel gear 24 drives the second bevel gears 26 on both sides to rotate. The second bevel gears 26 drive the corresponding drive rods 25 to rotate. The drive rods 25 drive the half gears 27 to rotate. The half gears 27 drive the first toothed belt 211 to move. The first toothed belt 211 drives the vibrating rod 212 to move. The vibrating rod 212 stretches the telescopic spring 29 through the ring 210 and the support plate 28. When the gear of the half gear 27 disengages from the first toothed belt 211, under the elastic force of the telescopic spring 29, it drives the vibrating rod 212 to impact and vibrate the partition plate 3 through the ring 210, so as to vibrate out the generated bubbles and defoam the raw materials.

[0034] The above is only the preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A mixing device for producing a surface sizing agent with good uniformity, characterized in that: It includes a mixing cylinder (1), a partition plate (3) is fixedly installed on the inner side wall of the mixing cylinder (1), an anti-foaming component (2) is arranged inside the mixing cylinder (1), and a stirring component (4) is arranged inside the mixing cylinder (1); The anti-foaming component (2) includes a bracket (21) and a driving rod (25). The lower surface of the bracket (21) is fixedly connected to the upper surface of the mixing cylinder (1). One end of the driving rod (25) is rotatably connected to the inner side wall of the mixing cylinder (1), and a driving motor (22) is fixedly installed on the inner wall of the bracket (21).

2. The mixing device for producing a surface sizing agent with good uniformity according to claim 1, characterized in that, The output end of the driving motor (22) is fixedly installed with a reciprocating lead screw (23), and one end of the reciprocating lead screw (23) extends outside the lower surface of the partition plate (3) and is fixedly installed with a first bevel gear (24).

3. The mixing device for producing a surface sizing agent with good uniformity according to claim 2, wherein, The other end of the driving rod (25) is fixedly installed with a second bevel gear (26). The first bevel gear (24) is meshed with the second bevel gear (26). A half gear (27) is fixedly installed on the outer wall of the driving rod (25). A support plate (28) is fixedly installed on the inner side wall of the mixing cylinder (1), and a telescopic spring (29) is fixedly installed on the lower surface of the support plate (28).

4. A mixing device for producing a surface sizing agent with good uniformity according to claim 3, characterized in that, One end of the telescopic spring (29) is fixedly installed with a ring (210). A vibrating rod (212) is slidably installed on the inner wall of the support plate (28). One end of the vibrating rod (212) extends outside the upper surface of the support plate (28) and is in contact with the lower surface of the partition plate (3). The other end of the vibrating rod (212) penetrates through the inside of the telescopic spring (29) and extends outside the lower surface of the ring (210). The inner wall of the ring (210) is fixedly connected to the outer wall of the vibrating rod (212). A first toothed belt (211) is fixedly installed at the other end of the vibrating rod (212). The half gear (27) is meshed with the first toothed belt (211).

5. A mixing device for producing a surface sizing agent with good uniformity according to claim 4, characterized in that, The stirring component (4) includes a threaded sleeve (41) and a second toothed belt (45). The inner wall of the threaded sleeve (41) is threadedly connected to the outer surface of the reciprocating lead screw (23). One end of the second toothed belt (45) is fixedly connected to the upper surface of the partition plate (3). A limiting rod (42) is fixedly installed on the upper surface of the partition plate (3), and the outer wall of the limiting rod (42) is slidably connected to the inner wall of the threaded sleeve (41).

6. The mixing device for producing a surface sizing agent with good uniformity according to claim 5, wherein, A connecting rod (43) is rotatably installed on the side wall of the threaded sleeve (41). One end of the connecting rod (43) is fixedly installed with a gear (44). A plurality of stirring blades (46) are fixedly installed on the outer surface of the connecting rod (43). The gear (44) is meshed with the second toothed belt (45).

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