An electrospinning fiber collection plate

Abstract

This utility model discloses an electrospun fiber collecting plate, comprising: a base, set on the ground to provide a horizontal mounting plane; a slide rail assembly, fixed to the upper surface of the base; a collecting plate, located above the slide rail assembly, for receiving fiber materials; a driving mechanism, driving the collecting plate to move horizontally reciprocally along the slide rail direction; and a fixing plate, vertically set at one end of the base, for limiting the initial position of the collecting plate. This utility model achieves stable horizontal reciprocating motion of the collecting plate through a precision threaded transmission driven by a motor. Combined with an anti-overflow design, it effectively controls fiber scattering, significantly improving deposition uniformity. The fixing plate ensures consistent initial positioning, and a laser ruler monitors displacement in real time, greatly improving operational repeatability and intelligence. The modular design, supplemented by buffer pads to absorb impact, effectively extends the equipment's service life and simplifies maintenance, achieving overall efficient, high-quality, and low-loss fiber membrane production.

Description

Technical Field

[0001] This utility model belongs to the field of electrospinning equipment, specifically, it relates to an electrospinning fiber collecting plate. Background Technology

[0002] Electrospinning is a specialized fiber manufacturing process in which a polymer solution or melt is jetted and spun in a strong electric field. Under the influence of the electric field, the droplet at the needle changes from a spherical shape to a conical shape (i.e., a "Taylor cone"), and extends from the tip of the cone to form a fine fiber filament. This method can produce polymer filaments with nanometer-scale diameters. Electrospinning has become a widely applicable technology in the biopharmaceutical and medical device industries due to its advantages such as simple manufacturing equipment, low spinning cost, wide variety of spinnable materials, and controllable process.

[0003] Traditional fiber collection devices are mostly fixed metal screens or rotating drums. While fixed collection plates have a simple structure, the fixed fiber deposition range leads to excessively thick local deposits and thin edges, making it difficult to prepare large-area uniform membranes. Rotating drum devices can increase the collection area, but the short contact time between the fiber and the collection surface easily leads to weak interlayer bonding and poor adaptability to irregularly shaped fiber membranes. Existing translational collection devices are mostly manually adjustable, which has two major drawbacks: 1. Low precision of manual pushing, unable to achieve periodic reciprocating motion; 2. Lack of displacement feedback mechanism, making it difficult for operators to monitor the plate position in real time, affecting experimental repeatability. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, the purpose of this utility model is to provide an electrospinning fiber collecting plate, comprising:

[0005] The base, set on the ground, provides a horizontal mounting surface;

[0006] The slide rail assembly is fixed to the upper surface of the base;

[0007] A collection plate, located above the slide rail assembly, is used to receive fibrous materials;

[0008] The drive mechanism drives the collection plate to move horizontally back and forth along the slide rail.

[0009] A fixing plate, vertically positioned at one end of the base, is used to limit the initial position of the collecting plate.

[0010] As a preferred embodiment, the slide rail assembly includes two parallel guide rails and a sliding block, wherein the sliding block is movably mounted on the guide rails and the upper surface of the sliding block is rigidly connected to the bottom of the collecting plate.

[0011] As a preferred embodiment, the drive mechanism includes a motor, a threaded rod, and a threaded slider. The output shaft of the motor is fixedly connected to the end of the threaded rod via a coupling. The threaded rod is arranged parallel to the side of the slide rail assembly, and one end is connected to the base via a bearing. The threaded slider is threadedly connected to the threaded rod, and the threaded slider is fixed to the side wall of the sliding block by bolts.

[0012] As a preferred embodiment, the collecting plate is provided with upwardly extending anti-overflow edges on all four sides, and the inner surface of the anti-overflow edges is a polished bevel.

[0013] As a preferred embodiment, the base surface is engraved with a length scale, which is arranged parallel to the side of the slide rail assembly, and the sliding block is equipped with a laser indicator that emits a beam of light pointing towards the scale surface of the length scale.

[0014] As a preferred embodiment, a buffer pad is provided between the threaded slider and the sliding block.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention achieves stable horizontal reciprocating motion of the collecting plate through a precision threaded transmission driven by a motor. Combined with an anti-overflow design, it effectively controls fiber scattering and significantly improves deposition uniformity. The fixed plate ensures consistent initial positioning, and the laser ruler monitors displacement in real time, greatly improving the repeatability and intelligence of the operation. The modular design, supplemented by buffer pads to absorb impact, effectively extends the service life of the equipment and simplifies maintenance. Overall, it achieves efficient, high-quality, and low-loss fiber membrane production. Attached Figure Description

[0017] Figure 1 This is a top view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the mating structure of the drive structure and slide rail assembly of this utility model. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments.

[0020] An electrospun fiber collecting plate, comprising:

[0021] Base 1, set on the ground, provides a horizontal mounting surface;

[0022] Slide rail assembly 2 is fixed to the upper surface of base 1;

[0023] As a preferred embodiment, the slide rail assembly 2 includes two parallel guide rails 21 and a sliding block 22. The sliding block 22 is movably mounted on the guide rails 21, and the upper surface of the sliding block 22 is rigidly connected to the bottom of the collecting plate 3.

[0024] The base 1 is fixed to the horizontal ground by anchor bolts. Two guide rails 21 are installed in parallel on the upper surface of the base 1. The sliding block 22 is inserted into the groove of the guide rail 21 and slides. The double guide rail design can eliminate the risk of single rail deflection and ensure that the sliding block 22 moves in a straight line.

[0025] The collecting plate 3 is located above the slide rail assembly 2 and is used to receive fibrous materials. As a preferred embodiment, the collecting plate 3 has upwardly extending anti-overflow edges 31 on all four sides, and the inner surface of the anti-overflow edges 31 is a polished bevel.

[0026] The collecting plate 3 is rigidly connected to the top surface of the sliding block 22 by bolts. The anti-overflow edge 31 has a height of 15mm, and the inner slope angle can be 60° and it is polished. The polishing electrochemical treatment greatly reduces the adsorption force between the fiber and the side wall. The slope design makes it easy to insert the operating tool to peel off the fiber membrane, which can prevent the edge fiber from curling and shorten the time for complete membrane peeling.

[0027] Drive mechanism 4 drives collection plate 3 to move horizontally back and forth along the slide rail direction;

[0028] As a preferred embodiment, the drive mechanism 4 includes a motor 41, a threaded rod 42, and a threaded slider 43. The output shaft of the motor 41 is fixedly connected to the end of the threaded rod 42 via a coupling. The threaded rod 42 is arranged parallel to the side of the slide rail assembly 2, and one end is connected to the base 1 via a bearing. The threaded slider 43 is threadedly connected to the threaded rod 42, and the threaded slider 43 is fixed to the side wall of the sliding block 22 by bolts.

[0029] After the motor 41 starts, it drives the threaded rod 42 to rotate, which in turn drives the threaded slider 43 to move along the rod axis, thereby driving the sliding block 22 to move synchronously. The stroke speed can be programmed and controlled to meet the requirements of different rheological properties of spinning liquid.

[0030] The fixing plate 5 is vertically set at one end of the base 1 and is used to limit the initial position of the collecting plate 3.

[0031] During installation, the collecting plate 3 abuts against the end face of the fixing plate 5, and then the driving mechanism 4 moves; it plays a mechanical limiting role, ensuring the consistency of the starting position of each reciprocating motion, which can improve the repeatability of mass production and reduce the reset calibration time.

[0032] As a preferred embodiment, the base 1 has a length scale 6 engraved on its surface and is arranged parallel to the side of the slide rail assembly 2. The sliding block 22 is equipped with a laser indicator 7, which emits a beam of light pointing towards the scale surface of the length scale 6.

[0033] The scale 6 is fixed to the edge of the base along the parallel guide rail. The laser indicator 7 on the sliding block 22 emits a red beam to illuminate the scale, making it convenient for the operator to read and confirm the position of the sliding block 22.

[0034] As a preferred option, a buffer pad 8, which can be a polyurethane pad, is provided between the threaded slider 43 and the sliding block 22. It is sandwiched between the connecting surfaces of the threaded slider 43 and the sliding block 22 to protect the bearing of the threaded rod 42 from reverse impact, reduce the risk of motor 41 stalling, and absorb a certain amount of impact energy.

[0035] The overall workflow of this device is as follows:

[0036] 1. Preparation stage;

[0037] Adjust base 1 to a horizontal position, check with a level instrument to ensure the angle is ≤0.5°, and then fix it in place.

[0038] Install the collecting plate 3 onto the sliding block 22, ensuring it is tightly attached to the fixing plate 5;

[0039] Align the laser pointer 7 beam with the zero mark on the scale 6.

[0040] 2. Parameter settings;

[0041] In the control system settings: travel range, movement speed, and number of reciprocations.

[0042] 3. Start spinning;

[0043] Turn on the spinneret of the electrostatic spinning equipment;

[0044] Start the drive mechanism 4, and the collection plate 3 begins to move horizontally back and forth;

[0045] Observe the position of laser point 7 on scale 6 in real time to confirm the range of motion.

[0046] 4. Process monitoring;

[0047] The system will automatically stop when the spinning solution is depleted or the set number of cycles is reached.

[0048] Check the fiber buildup on the inner side of the anti-overflow edge 31 and clean it if necessary.

[0049] 5. Power off for maintenance;

[0050] First turn off the drive motor 41, then disconnect the high-voltage power supply for spinning;

[0051] Remove the collection plate 3 and use a scraper to peel off the fiber membrane along the slope of the anti-overflow edge 31;

[0052] Regularly lubricate the guide rail 21 and check the buffer pad 8; if the compression deformation exceeds 10%, it needs to be replaced.

[0053] 6. Repetitive production;

[0054] After cleaning, reinstall the collection plate 3, reset it to the fixed plate 5, and start the next production cycle.

[0055] The contents not described in detail in this specification are existing technologies known to those skilled in the art, and their specifications and models can be selected according to actual conditions.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical embodiments described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A collecting plate for electrospun fibers, characterized in that, include: The base (1) is set on the ground to provide a horizontal mounting surface; The slide rail assembly (2) is fixed to the upper surface of the base (1); The collecting plate (3) is located above the slide rail assembly (2) and is used to receive fiber materials; The drive mechanism (4) drives the collection plate (3) to move horizontally back and forth along the slide rail direction; A fixing plate (5) is vertically set at one end of the base (1) to limit the initial position of the collecting plate (3).

2. The electrospun fiber collecting plate according to claim 1, characterized in that, The slide rail assembly (2) includes two parallel guide rails (21) and a sliding block (22). The sliding block (22) is movably mounted on the guide rails (21), and the upper surface of the sliding block (22) is rigidly connected to the bottom of the collecting plate (3).

3. The electrospun fiber collecting plate according to claim 1, characterized in that, The drive mechanism (4) includes a motor (41), a threaded rod (42) and a threaded slider (43). The output shaft of the motor (41) is fixedly connected to the end of the threaded rod (42) through a coupling. The threaded rod (42) is arranged parallel to the side of the slide rail assembly (2), and one end is connected to the base (1) through a bearing. The threaded slider (43) is threadedly connected to the threaded rod (42), and the threaded slider (43) is fixed to the side wall of the sliding block (22) by bolts.

4. The electrospun fiber collecting plate according to claim 1, characterized in that, The collecting plate (3) has upward-extending anti-overflow edges (31) on all four sides, and the inner surface of the anti-overflow edges (31) is a polished bevel.

5. The electrospun fiber collecting plate according to claim 1, characterized in that, The base (1) has a length scale (6) engraved on its surface and is arranged parallel to the side of the slide rail assembly (2). The sliding block (22) is equipped with a laser indicator (7) that emits a beam of light pointing to the scale surface of the length scale (6).

6. The electrospun fiber collecting plate according to claim 3, characterized in that, A buffer pad (8) is provided between the threaded slider (43) and the sliding block (22).

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