Shaping device used after extrusion molding of ceramic membrane and working method

Abstract

The invention relates to the technical field of ceramic membrane production, in particular to a shaping device used after ceramic membrane extrusion molding and a working method.The shaping device comprises two layers of first round rollers arranged in parallel and two layers of second round rollers arranged in parallel, and the first round rollers and the second round rollers are perpendicular to each other to form a square containing space; the accommodating space comprises a guide chamber and a shaping chamber, and the guide chamber is arranged close to one side of an outlet of the extruder; the containing space is arranged in the ceramic membrane outlet direction, the guide chamber and the shaping chamber are arranged, the first round roller and the second round roller are driven to rotate by means of the extrusion force of the ceramic membrane, shaping of the appearance of the periphery of the ceramic membrane is completed, and the device is suitable for extrusion deformation caused by various reasons; the problems of corner warping, bending and the like caused by non-uniform stress and non-uniform and unbalanced stress release in the ceramic membrane extrusion process are effectively solved, the shape stability of the ceramic membrane is favorably kept, and the product quality is improved.

Description

Technical Field

[0001] This invention relates to the field of ceramic membrane production technology, and specifically to a shaping device and working method for ceramic membranes after extrusion molding. Background Technology

[0002] Ceramic membranes are a type of solid membrane that have many advantages, such as high separation efficiency, stable performance, good chemical stability, resistance to acids and alkalis, resistance to organic solvents, high temperature resistance, and simple separation process.

[0003] Currently, after the ceramic film is extruded, it falls onto the drive roller, which requires an external power device to drive the drive roller to rotate. The rotation of the drive roller causes the ceramic film to flip, thereby applying circumferential force to prevent it from warping. Although this can have a certain effect, relying solely on the ceramic film's own weight to prevent warping is not universally applicable in all scenarios. It can be effective for minor warping, but it is obviously not suitable for cases of severe deformation.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the general background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] This invention provides a shaping device and working method for ceramic film after extrusion molding, thereby effectively solving the problems pointed out in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A shaping device for ceramic film after extrusion molding, comprising: Two parallel first rollers and two parallel second rollers are arranged perpendicularly to each other to form a U-shaped receiving space. The accommodating space includes a guide chamber and a shaping chamber, wherein the guide chamber is located on the side closer to the extruder; The accommodating space is arranged along the ceramic membrane exit direction. The ceramic membrane enters the shaping chamber from the guiding chamber and is driven by the extrusion force of the ceramic membrane to rotate the first and second rollers, thereby completing the shaping of the ceramic membrane shape.

[0007] Furthermore, the first roller and the second roller are spaced apart.

[0008] Furthermore, the first and second rollers are evenly arranged.

[0009] Furthermore, the guide chamber is provided with a conical guide opening, and the single-sided angle α of the conical guide opening is 10 to 60°.

[0010] Furthermore, the single-sided angle α of the tapered guide opening is 30°.

[0011] Furthermore, the second circular rollers located on both sides of the guide chamber are arranged in an enlarged manner, facing the extruder direction.

[0012] Furthermore, the second rollers located on both sides of the guide chamber and the first roller on the side away from the ground are arranged to be enlarged sequentially towards the extruder.

[0013] Furthermore, it also includes a first and a second bracket that are vertically arranged; The first bracket is provided with a parallel first frame and a second frame for mounting the first circular roller; The second bracket is provided with parallel third and fourth borders for mounting the second circular roller; A position adjustment device is provided between the first border and the second border, and between the third border and the fourth border, for changing the distance between the first border and the second border, and between the third border and the fourth border.

[0014] Furthermore, the adjusting device is a screw adjusting device, a hydraulic or pneumatic adjusting device, or a manual adjusting device, at least one of the following.

[0015] The present invention also includes a method of operating the shaping device for ceramic film extrusion molding as described above, comprising: First, adjust the size parameters of the device roughly according to the size of the extruded ceramic film so that the guide chamber can smoothly guide the ceramic film into the shaping chamber; The ceramic membrane is continuously extruded, and then the size parameters of the shaping chamber are finely adjusted to a suitable gap, so that the ceramic membrane fits tightly against the four walls of the shaping chamber.

[0016] The technical solution of this invention can achieve the following technical effects: By setting up a guiding chamber and a shaping chamber, and by relying on the extrusion force of the ceramic film to drive the first and second rollers to rotate, the shape of the ceramic film around its perimeter is shaped. This method is suitable for extrusion deformation caused by various reasons, and effectively solves problems such as warping and bending caused by uneven force and uneven stress release during the ceramic film extrusion process. It helps to maintain the shape stability of the ceramic film and improve product quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the shaping device used after ceramic film extrusion molding; Figure 2 This is a schematic diagram of another angle of the shaping device used after ceramic film extrusion molding (including the ceramic film). Figure 3 This is a top view of a shaping device used after ceramic film extrusion molding; Figure 4 Left view of a shaping device used after ceramic film extrusion molding; Figure 5 This is a schematic diagram of another implementation of the guidance chamber.

[0019] Reference numerals: 1. First roller; 2. Second roller; 3. Receiving space; 31. Guide chamber; 32. Shaping chamber; 01. Ceramic membrane. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] like Figures 1 to 5 As shown: A shaping device for ceramic film after extrusion molding, comprising: Two parallel first rollers 1 and two parallel second rollers 2 are arranged perpendicularly to each other to form a U-shaped receiving space 3; this helps to restrict the movement of the ceramic membrane 01 within the receiving space 3, thereby shaping the sidewall of the ceramic membrane 01.

[0023] The accommodating space 3 includes a guide chamber 31 and a shaping chamber 32. The guide chamber 31 is located on the side near the extruder outlet. The presence of the guide chamber 31 allows the extruded material to be guided and positioned in the initial stage, which helps to ensure that the material has obtained a good flow direction and position before entering the shaping chamber 32, thereby improving the efficiency and control of the entire extrusion process. The accommodating space 3 is set along the exit direction of the ceramic membrane 01. The ceramic membrane 01 enters the shaping chamber 32 from the guide chamber 31. The extrusion force of the ceramic membrane 01 drives the first roller 1 and the second roller 2 to rotate, thereby completing the shaping of the ceramic membrane 01.

[0024] By setting up a guide chamber 31 and a shaping chamber 32, and by relying on the extrusion force of the ceramic film 01 to drive the first roller 1 and the second roller 2 to rotate, the shape of the ceramic film 01 around its perimeter is shaped. This method is suitable for extrusion deformation caused by various reasons, and effectively solves problems such as warping and bending caused by uneven force, uneven stress release and imbalance during the extrusion process of the ceramic film 01. It helps to maintain the shape stability of the ceramic film 01 and improve product quality. This invention requires no additional motor drive, relying entirely on the thrust of the ceramic film 01 during extrusion to drive the rotation of the first roller 1 and the second roller 2, thus reducing costs and saving energy and being environmentally friendly. The absence of an additional motor simplifies the structure of the device, reducing maintenance and operational complexity and improving system reliability and stability.

[0025] As a preferred embodiment of the above, the first roller 1 and the second roller 2 are spaced apart. Specifically, the first roller 1 is a horizontal roller that shapes the top and bottom surfaces of the ceramic film 01, and the second roller 2 is a vertical roller that shapes the left and right sides of the ceramic film 01. The spaced design of the first roller 1 and the second roller 2 can reduce frictional resistance, reduce the energy consumption of the shaping device, and improve production efficiency. The reasonable spacing helps to ensure smooth fluid flow during the shaping process and reduce energy loss.

[0026] In this embodiment, the first roller 1 and the second roller 2 are evenly arranged. On the one hand, the even arrangement can ensure uniform extrusion of the ceramic membrane 01, which helps to maintain uniform extrusion pressure on the entire membrane material in the shaping chamber 32 and prevent shape distortion and uneven extrusion. On the other hand, the even arrangement of the rollers helps to reduce the impact of extrusion force on the ceramic membrane 01 in the shaping chamber 32, which helps to maintain the balance of the system, reduce fluctuations in extrusion force, and improve the stability of the entire system.

[0027] The guide chamber 31 is equipped with a conical guide opening, the angle α of which is 10 to 60°. On the one hand, the conical guide opening guides the initially entering ceramic membrane 01, facilitating its smooth entry into the receiving space 3. On the other hand, the design of the conical guide opening helps to reduce the impact of extrusion force on the initially entering ceramic membrane 01. By optimizing the guide opening, the extrusion force can be more evenly distributed on the surface of the ceramic membrane 01, reducing local stress concentration and helping to prevent shape distortion or damage.

[0028] As a preferred embodiment of the above, the single-sided angle α of the tapered guide orifice is 30°. On the one hand, a single-sided angle of 30° can provide precise and effective guidance, ensuring that the ceramic membrane 01 moves along the expected path when entering the forming device. This helps prevent the membrane material from deviating from the ideal flow direction and ensures the accuracy of the entire extrusion molding process. On the other hand, a smaller single-sided angle helps reduce the resistance of the ceramic membrane 01 when entering the forming device, which helps reduce the impact of extrusion force on the ceramic membrane 01, reduces energy consumption, and improves the efficiency of the entire extrusion molding system. In addition, a 30° guide orifice angle can reduce the localized concentrated impact of extrusion force on the ceramic membrane 01. This helps avoid excessive stress at the inlet of the guide chamber 31, reducing the potential shape deformation and damage that may result.

[0029] As one implementation of the guide chamber 31, such as Figure 3 , 4 As shown, the second rollers 2 located on both sides of the guide chamber 31 are arranged in a funnel shape towards the extruder direction, and are progressively enlarged. Specifically, the vertical second rollers 2 are arranged in a funnel shape on both sides of the guide chamber 31. When the ceramic film 01 enters the guide chamber 31, the funnel shape on both sides improves the guiding performance of the ceramic film 01. Because the rollers are funnel-shaped, the film material entering the guide chamber 31 is more easily guided and positioned, reducing the friction and resistance on the film, and helping to ensure that the film enters the shaping device in the expected direction.

[0030] As another implementation of the guide chamber 31, such as Figure 5 As shown, the second rollers 2 on both sides of the guide chamber 31 and the first roller 1 on the side away from the ground are arranged to enlarge sequentially towards the extruder. Specifically, in addition to the vertical second rollers 2 being arranged in a funnel shape to enlarge sequentially on both sides of the guide chamber 31, the first roller 1 at the top is also arranged in a funnel shape. The height of the extruded ceramic film 01 can be slightly greater than the height of the bottom first roller 1, so that the extruded ceramic film 01 can fall onto the bottom first roller 1. Since the top first roller 1 and the second rollers 2 on the left and right sides are arranged in a funnel shape to enlarge sequentially, it is convenient to guide the square ceramic film 01 into the shaping device, making it easier for the ceramic film 01 to be aligned and stable when entering the guide chamber.

[0031] In this embodiment, a first support and a second support are also vertically arranged; The first support has a parallel first frame and a second frame for setting the first circular roller 1; The second support has parallel third and fourth borders for setting the second circular roller 2; Position adjustment devices are provided between the first and second borders, and between the third and fourth borders, to change the distance between them. This alters the length and width of the accommodating space 3 between the horizontal first roller 2 and the vertical second roller 2. On one hand, by adjusting the distance between the first and second borders, and between the third and fourth borders, the device can be adapted to the shaping of ceramic films 01 of various sizes and types after extrusion, increasing its flexibility and adaptability. On the other hand, the device can adapt to different sizes and types of ceramic films 01, reducing the time and cost associated with manufacturing new customized devices or replacing equipment. This versatility and adjustability make the production process more economical and efficient, saving costs.

[0032] The adjusting device includes at least one of the following: a screw adjusting device, a hydraulic or pneumatic adjusting device, or a manual adjusting device. Specifically, the screw adjusting device uses a screw and nut system, allowing adjustment of the distance between the first and second, third, and fourth frame sides by rotating the screw; the hydraulic or pneumatic adjusting device controls the position of the frame sides using a hydraulic or pneumatic cylinder, thereby adjusting the distance; the manual adjusting device adjusts the distance between the frame sides by tightening the screw and nut within a U-shaped groove. The size of the accommodating space 3 can be adjusted using any one of the following: a screw adjusting device, a hydraulic or pneumatic adjusting device, or a manual adjusting device; or a combination of these devices can be used to adjust the size of the accommodating space.

[0033] The present invention also includes a method of operating the shaping device for ceramic film 01 after extrusion molding as described above, comprising: S10: First, adjust the size parameters of this device according to the size of the extruded ceramic film 01 so that the guide chamber 31 can smoothly guide the ceramic film 01 into the shaping chamber 32; S20: The ceramic film 01 is continuously extruded, and then the size parameters of the forming chamber 32 are finely adjusted to a suitable gap, so that the ceramic film 01 fits tightly against the four walls of the forming chamber 32. This process must not affect the rotation of the first roller 1 and the second roller 2, nor change the size of the extruded ceramic film 01, and finally a regular ceramic film 01 product can be obtained.

[0034] like Figure 3 , 4As shown, the top and left views of the shaping device used after the extrusion molding of ceramic film 01 are as follows: the length of the top first circular roller 1 is shown as "b5, b6, b7, ..." in the top view, with a length range of 3-100cm, and the quantity is shown as "n2" in the top view, with a quantity range of 1-20; the vertical spacing of the vertical second circular roller 2 is "b4", with a spacing range of 1-10cm; the horizontal spacing of the vertical second circular roller 2 is shown as "b2" in the top view, with a spacing range of 3-50cm, and the quantity is shown as "n1" in the top view, with a quantity range of 1-100; the vertical spacing of the vertical second circular roller 2 is shown as "b3" in the top view, with a spacing range of 1-10cm; the spacing of the horizontal first circular roller 1 is shown as "b8" in the left view, with a spacing range of 3-50cm; all the circular rollers have the same diameter, "d1", with a diameter range of 1-5cm; the vertical second circular roller 2 and the horizontal first circular roller 1 in the shaping chamber 32 have the same length, "b1", with a length range of 5-50cm.

[0035] One possible embodiment for the dimensions of the first and second rollers 1 and the conical guide opening α is as follows: After the extrusion device for producing a 9-hole multi-channel square silicon carbide ceramic film 01, the shaping device of this invention is added. The angle "α" of the conical guide opening of the "funnel-shaped" guide chamber 31 is set to 30°; the lengths "b5" and "b7" of the upper first roller 1 are 13cm, 16cm, and 19cm, respectively, and the quantity "n2" is 3; the vertical second roller 2 has a vertical spacing... The distance from "b4" is 2cm. The horizontal spacing "b2" of the vertical second roller 2 in the shaping chamber 32 is 3cm, and the number "n1" is 6. The vertical spacing "b3" of the vertical second roller 2 is 2cm. The spacing "b8" of the horizontal first roller 1 is 3cm. The diameter "d1" of all rollers is 1cm. The length "b1" of the vertical second roller 2 and the horizontal first roller 1 in the shaping chamber 32 is 10cm. The ceramic film 01 that is finally extruded becomes very regular after being shaped by this device.

[0036] Another embodiment where the dimensions of the first and second rollers 1 and the conical guide opening α can be selected is as follows: A shaping device as described in this invention is added after a 39-hole multi-channel square silicon carbide ceramic film production extrusion device. The opening angle "α" of the funnel-shaped guide chamber 31 is set to 20°; the lengths "b5" of the upper first roller 1 are 15cm, "b6" is 17cm, and "b7" is 20cm, with a quantity "n2" of 3; the longitudinal spacing "b4" of the vertical second rollers 2 is 4cm. The transverse spacing "b2" of the vertical second rollers 2 in the shaping chamber is 8.5cm, with a quantity "n1" of 10; the longitudinal spacing "b3" of the vertical second rollers 2 is 4cm; the spacing "b8" of the horizontal first rollers 1 is 8.5cm. The diameter "d1" of all rollers is 2cm; the length "b1" of the vertical second rollers 2 and the horizontal first rollers 1 in the shaping chamber is 12cm. The extruded ceramic membrane becomes very regular after being shaped by this device.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shaping device for a ceramic membrane after extrusion molding, characterized by, Comprise: Two layers of first circular rollers arranged in parallel and two layers of second circular rollers arranged in parallel, the first circular rollers and the second circular rollers are arranged perpendicular to each other, forming a housing space in the shape of a mouth; The housing space comprises a guiding chamber and a shaping chamber, wherein the guiding chamber is arranged near one side of the extruder outlet; The housing space is arranged along the direction of the ceramic membrane out of the membrane, the ceramic membrane enters the shaping chamber from the guiding chamber, and the first circular rollers and the second circular rollers are driven to rotate by the extrusion force of the ceramic membrane, completing the shaping of the ceramic membrane profile.

2. The device for shaping a ceramic membrane after extrusion molding according to claim 1, wherein The first circular rollers and the second circular rollers are arranged at intervals.

3. The device for shaping a ceramic membrane after extrusion molding according to claim 1, wherein The first circular rollers and the second circular rollers are arranged uniformly.

4. The device for shaping a ceramic membrane after extrusion molding according to claim 1, wherein The guiding chamber is provided with a conical guide port, and the single-side angle α of the conical guide port is 10-60°.

5. The device for shaping a ceramic membrane after extrusion molding according to claim 4, characterized in that, The single-side angle α of the conical guide port is 30°.

6. The device for shaping a ceramic membrane after extrusion molding according to claim 1, wherein The second circular rollers located on both sides of the guiding chamber are arranged in succession in the direction away from the extruder.

7. The device for shaping a ceramic membrane after extrusion molding according to claim 1, wherein The second circular rollers located on both sides of the guiding chamber and the first circular rollers away from the ground are arranged in succession in the direction away from the extruder.

8. The device for shaping a ceramic membrane after extrusion molding according to claim 1, wherein Further comprising a first support and a second support arranged vertically; The first support is provided with parallel first and second side frames for arranging the first circular rollers; The second support is provided with parallel third and fourth side frames for arranging the second circular rollers; The first and second side frames and the third and fourth side frames are provided with position adjusting devices for changing the distance between the first and second side frames and the third and fourth side frames.

9. The device for shaping a ceramic membrane after extrusion molding according to claim 8, wherein The adjusting device is at least one of a screw adjusting device, a hydraulic or pneumatic adjusting device, and a manual adjusting device.

10. A working method of the shaping device for ceramic membranes after extrusion molding according to claim 1, characterized in that, Comprise: First, according to the size of the extruded ceramic membrane, the size parameters of the device are roughly adjusted, so that the guiding chamber can smoothly guide the ceramic membrane into the shaping chamber; Continuously extruding the ceramic membrane, and then finely adjusting the size parameters of the shaping chamber to a suitable gap, so that the ceramic membrane closely fits the four walls of the shaping chamber.

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