A super large spin rotating membrane scraping device
Patent Information
- Application Number
- CN202522137035.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-10-10
AI Technical Summary
[0003]传统的刮膜方法分为两种，一种是手工进行刮膜，即将成膜胶体倾倒在基片表面，作业人员利用刮刀手动刮膜，但是手动刮膜的质量难以保证，存在成膜厚度不均匀、精度差等问题，且效率低下，已无法满足现代化批量生产需求；另一种是利用刮膜机进行刮膜，现有技术中刮膜机的刮刀采用龙门型支架固定，导致刮膜受限，只适用于分离膜无特殊要求或仅对面斜度有要求的情况，且分离膜的大小必须小于台面的大小，针对比台面大的分离膜、或环形分离膜要求内外斜度不一致的情况无法适用
[0010]由于上述技术方案的运用，本实用新型相对于现有技术的有益效果在于：其一，自动化刮膜方式相对于人工刮膜方式加工效率高，可满足现代化批量生产需求；其二，通过设置高度调节机构，可以调节刮刀的高度，刮膜过程中刮刀为静止状态，刮膜完成旋转工作台带动刮刀进行多余成膜胶体收胶，进一步提高了分离膜的平整度，刮制得到的分离膜厚度均匀，精度高；其三，本实用新型刮刀的固定方式为单端固定，较现有技术中的龙门型支架固定，刮制的分离膜大小不受限制，只需要更改刮刀的规格即可，操作简单，可适用范围广，尤其是刮刀的角度可调，对于环形分离膜要求内外斜度不一致的情况同样适用。
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Figure CN224867701U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film scraping machine technology, specifically to an ultra-large self-rotating film scraping device. Background Technology
[0002] Separation membranes are membrane materials with selective permeation capabilities. Based on their separation mechanism and application range, they can be classified into microfiltration membranes, ultrafiltration membranes, nanofiltration membranes, reverse osmosis membranes, pervaporation membranes, ion exchange membranes, etc. The currently known preparation process for separation membranes involves membrane scraping, gelation, and heat treatment. Among these, membrane scraping technology is one of the factors affecting the performance of separation membranes.
[0003] Traditional film coating methods fall into two categories: manual coating and non-manual coating. Manual coating involves pouring the film-forming colloid onto the substrate surface and manually coating it with a doctor blade. However, manual coating suffers from inconsistent film thickness, poor precision, and low efficiency, failing to meet the demands of modern mass production. The other method utilizes a coating machine. Current coating machines use a gantry-type support to fix the doctor blade, limiting its application. This method is only suitable for situations where the separation membrane has no special requirements or only requires a specific angle, and the separation membrane must be smaller than the table size. It is unsuitable for separation membranes larger than the table or for annular separation membranes requiring inconsistent internal and external angles. Therefore, to address these issues and technical requirements, it is necessary to develop a coating machine applicable to various coating scenarios. Summary of the Invention
[0004] To address the aforementioned problems, the purpose of this utility model is to provide an ultra-large self-rotating film scraping machine that can achieve automated film scraping with uniform film thickness and high efficiency, especially meeting the scraping requirements of various shaped separation films.
[0005] The technical solution adopted by this utility model to solve its technical problem is: An ultra-large self-rotating scraping device includes a base, a magnetic base plate, and a scraper disposed above the base. The device is characterized by: a rotation drive mechanism at the bottom of the magnetic base plate; the scraper being disposed above the base via a height adjustment mechanism; the height adjustment mechanism including a rotating worktable, a lead screw lifting platform, and a fine-tuning slide; the rotating worktable being disposed on the base; the lead screw lifting platform being disposed on the rotating worktable; the fine-tuning slide being disposed on the lead screw lifting platform; and one end of the scraper being disposed on the fine-tuning slide.
[0006] Furthermore, the magnetic base disk has a ring structure. The ring structure facilitates the scraping of the ring-shaped separation membrane.
[0007] Furthermore, the magnetic base disk is mounted above the base via a support mechanism. Even further, the support mechanism includes a bracket and a bearing mounted on the base; the magnetic base disk is mounted on the bearing via a first flange; the bearing is mounted on the bracket via a second flange. Preferably, the bracket is composed of a plurality of square tubes. The support mechanism is used to fix the magnetic base disk in place, ensuring that the magnetic base disk remains balanced during rotation.
[0008] Furthermore, the rotary drive mechanism includes a rotary motor and a pair of meshing pinions and gears. Even further, the pinion is mounted on the drive shaft of the rotary motor; the gear is mounted on the magnetic base disk. The rotary drive mechanism is used to drive the magnetic base disk to rotate.
[0009] Furthermore, the lead screw lifting platform is mounted on the rotary worktable via a third flange; the fine-tuning slide is mounted on the lead screw lifting platform via a fixed seat. The lead screw lifting platform and the fine-tuning slide cooperate to adjust the distance between the scraper and the magnetic base plate; the fine-tuning slide is conventionally provided with multiple mounting holes in different positions, and the position of the scraper fixed on the mounting holes of the fine-tuning slide can be adjusted according to the scraping requirements. The rotary worktable is used to drive the scraper to rotate and collect the glue.
[0010] Due to the application of the above technical solutions, the beneficial effects of this utility model compared to the prior art are as follows: First, the automated film scraping method has higher processing efficiency than the manual film scraping method, which can meet the needs of modern mass production; Second, by setting a height adjustment mechanism, the height of the scraper can be adjusted. During the film scraping process, the scraper is stationary. After the film scraping is completed, the rotating worktable drives the scraper to collect excess film-forming colloid, which further improves the flatness of the separation membrane. The scraped separation membrane has uniform thickness and high precision; Third, the scraper of this utility model is fixed at one end, which is different from the gantry bracket fixing in the prior art. The size of the scraped separation membrane is not limited. Only the specifications of the scraper need to be changed. The operation is simple and the applicability is wide. In particular, the angle of the scraper is adjustable, which is also applicable to the situation where the inner and outer slopes of the annular separation membrane are inconsistent. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of the ultra-large self-rotating scraping film device in Embodiment 1.
[0012] Figure 2 This is a rear view of the ultra-large self-rotating scraping device of Embodiment 1.
[0013] Figure 3 This is a schematic diagram of the rotary drive mechanism and support mechanism in Embodiment 1.
[0014] Figure 4 This is a schematic diagram of the height adjustment mechanism in Embodiment 1.
[0015] The components include: base 1, magnetic base plate 2, scraper 3, rotary drive mechanism 4, height adjustment mechanism 5, support mechanism 6, rotary motor 401, pinion 402, large gear 403, fixed frame 404, rotary worktable 501, screw lifting platform 502 and fine-tuning slide 503, third flange 504, fixed seat 505, support 601, bearing 602, first flange 603, and second flange 604. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. The specific components involved are existing products, and the specific components are provided with conventional mounting holes. The connection and usage methods between the specific components are conventional technologies.
[0017] 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 herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.
[0018] The terms "first," "second," "third," etc., in the specification, claims, or drawings of this utility model are used to distinguish different objects, rather than to describe a specific order. Example 1
[0019] like Figures 1 to 4 As shown: An ultra-large self-rotating scraping device includes a base 1, a magnetic base plate 2, and a scraper 3 disposed above the base; a rotation drive mechanism 4 is provided at the bottom of the magnetic base plate; the scraper is disposed above the base via a height adjustment mechanism 5; the height adjustment mechanism includes a rotary worktable 501, a screw lifting platform 502, and a fine-tuning slide 503; the rotary worktable is disposed on the base; the screw lifting platform is disposed on the rotary worktable via a third flange 504; the fine-tuning slide is disposed on the worktable surface of the screw lifting platform via a fixed base 505; one end of the scraper is disposed on the fine-tuning module.
[0020] In this embodiment, the magnetic base disk has a ring structure to facilitate the scraping of the ring-shaped separation membrane.
[0021] In this embodiment, the magnetic base disk is mounted above the base via a support mechanism 6. The support mechanism includes a support 601 and a bearing 602 mounted on the base; the magnetic base disk is mounted on the bearing via a first flange 603; the bearing is mounted on the support via a second flange 604. The support consists of four square tubes, which are fixed to the base with bolts; the bearing is a thrust cylindrical roller bearing, which is mounted on the support via the second flange.
[0022] Furthermore, the rotary drive mechanism includes a rotary motor and a pair of meshing pinions and gears. Even further, the pinion is mounted on the drive shaft of the rotary motor; the gear is mounted on the magnetic base disk. The rotary drive mechanism is used to drive the magnetic base disk to rotate.
[0023] In this embodiment, the rotary drive mechanism includes a rotary motor 401 and a pair of meshing pinions 402 and a large gear 403. The pinion is mounted on the drive shaft of the rotary motor; the large gear is mounted on a first flange. The rotary motor is mounted on a second flange via a mounting bracket 404. The rotary motor drives the pinion to rotate, thereby driving the large gear to rotate. The large gear is mounted on the first flange on which the magnetic base plate is mounted, thus driving the magnetic base plate to rotate, thereby realizing the self-rotation of the separation membrane.
[0024] In this invention, the rotary worktable, screw lifting platform, and fine-tuning slide are all existing products, and their specific operation and usage methods are conventional techniques, which do not affect the understanding of this invention by those skilled in the art. In practical applications, the screw lifting platform and the fine-tuning slide cooperate to adjust the distance between the scraper and the magnetic base plate; the fine-tuning slide is conventionally provided with multiple mounting holes in different positions, and the position of the scraper fixed on the mounting holes of the fine-tuning slide can be adjusted according to the scraping requirements to meet the requirement of a separation film with inconsistent inner and outer slopes. The rotary worktable is used to drive the scraper to rotate and collect the glue. Example 2
[0025] Based on Example 1, the difference in this example is that the inner and outer rings of the magnetic base disk are respectively provided with receiving rings to collect the film-forming colloid dripping from the edge of the magnetic base disk. Example 3
[0026] The method for preparing the separation membrane using the apparatus of Example 2 comprises the following steps: (1) Preparation: Place the separation membrane on the magnetic base plate, manually apply the film-forming colloid to the membrane, and adjust the position of the scraper fixed on the mounting hole of the fine adjustment slide, as well as the screw lifting platform and the fine adjustment slide, according to the membrane preparation requirements, so as to adjust the distance between the scraper and the magnetic base plate. (2) Scraping the film: Turn on the rotary motor, which drives the magnetic base disk to rotate, thereby driving the separation membrane to rotate. The scraper is stationary, and the separation membrane is scraped. The film-forming colloid dripping during the scraping process is collected in the collection ring. (3) Collect the adhesive. The magnetic base plate rotates one revolution, the rotary motor is turned off, and the rotary worktable drives the scraper to rotate to collect the adhesive. The excess film-forming adhesive is collected into the collection ring, and the film scraping is completed.
[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the principle of the present utility model, and these should also be considered to fall within the protection scope of the present utility model.
Claims
1. A large self-rotating scraping device, comprising a base and a magnetic base disk and a scraper disposed above the base, characterized in that: The bottom of the magnetic base plate is provided with a rotary drive mechanism; the scraper is mounted above the base via a height adjustment mechanism; the height adjustment mechanism includes a rotary worktable, a lead screw lifting platform, and a fine-tuning slide; the rotary worktable is mounted on the base; the lead screw lifting platform is mounted on the rotary worktable; the fine-tuning slide is mounted on the lead screw lifting platform; one end of the scraper is mounted on the fine-tuning slide.
2. The ultra-large self-rotating film scraping device according to claim 1, characterized in that: The magnetic base disk has a ring structure.
3. The ultra-large self-rotating film scraping device according to claim 1, characterized in that: The magnetic base plate is mounted on the base via a support mechanism.
4. The ultra-large self-rotating film scraping device according to claim 3, characterized in that: The support mechanism includes a support mounted on a base and a bearing; the magnetic base plate is mounted on the bearing via a first flange; the bearing is mounted on the support via a second flange.
5. The ultra-large self-rotating film scraping device according to claim 4, characterized in that: The support is composed of a plurality of square tubes.
6. The ultra-large self-rotating film scraping device according to claim 1, characterized in that: The rotary drive mechanism includes a rotary motor and a pair of meshing pinions and gears.
7. The ultra-large self-rotating film scraping device according to claim 6, characterized in that: The pinion is mounted on the drive shaft of the rotary motor.
8. The ultra-large self-rotating film scraping device according to claim 6, characterized in that: The large gear is mounted on a magnetic base plate.
9. The ultra-large self-rotating film scraping device according to claim 1, characterized in that: The screw lifting platform is mounted on the rotary worktable via a third flange.
10. The ultra-large self-rotating film scraping device according to claim 1, characterized in that: The fine-tuning slide is mounted on the lead screw lifting platform via a fixed base.