Receiving device of electrostatic spinning machine

Abstract

The utility model provides a receiving device of an electrostatic spinning machine, which is characterized in that a positioning gap is arranged on the surface for receiving spinning fibers, and the positioning gap is used for inserting at least one edge of a base material for collecting the spinning fibers. And at least one edge of the base material extends from the positioning gap along the receiving surface of the receiving device and covers the receiving surface. The positioning gap extends towards the interior of the receiving device along the direction parallel to the receiving surface to form a concave part, and at least one edge of the base material is inserted into the positioning gap and extends towards the concave part. According to the utility model, the positioning gap is arranged, so that the base material can be conveniently mounted on the receiving device, the receiving surface is wrapped, the base material can be conveniently taken down, the accurate mounting position of the base material is ensured, the observation is convenient, the operation convenience is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic spinning, and in particular to a receiving device of an electrostatic spinning machine. Background Art

[0002] Electrospinning is a special fiber manufacturing process in which a polymer solution or melt is jet-spun in a strong electric field. Under the action of the electric field, the droplet at the needle tip changes from a sphere to a cone (i.e., a "Taylor cone") and extends from the needle tip to form extremely fine fiber filaments. This process can produce continuous fibers ranging from a few nanometers to tens of microns. Due to its high efficiency and low cost, it has a wide range of applications in the medical, chemical, and electronic fields.

[0003] At present, the main method for collecting spun fibers is to collect the fiber filaments by spraying them on a receiving device (such as a drum, a rotating shaft, or a flat plate). Although this can complete the collection of spun fibers, it is not convenient to remove the spun fibers after they are directly collected on the receiving device. Moreover, the fiber layer formed by spinning is relatively thin, and it is easy to cause wrinkles or damage during the removal process. Therefore, a substrate (such as release paper, aluminum foil, etc.) is generally used to collect the spun fibers, that is, the substrate is first coated on the receiving device, and during the electrospinning process, the spun fibers are collected on the substrate. After the spinning is completed, the substrate is removed, and the spun fibers collected on the substrate can be removed together. The existing drum is usually cylindrical, and the substrate is coated on the drum with an adhesive tape, which is troublesome to operate and not easy to remove. Utility Model Content

[0004] In view of the problems existing in the background technology, the purpose of the utility model is to provide a receiving device for an electrostatic spinning machine, which can conveniently and quickly install and remove the substrate on the receiving surface, thereby improving the convenience of operation.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a receiving device of an electrospinning machine, wherein a surface of the receiving device for receiving spun fibers is provided with a positioning gap, and the positioning gap is used to insert at least one edge of a substrate for collecting spun fibers, and at least one edge of the substrate extends from the positioning gap along the receiving surface of the receiving device and covers the receiving surface.

[0006] Optionally, the positioning slit extends toward the interior of the receiving device along a direction parallel to the receiving surface to form a recessed portion, and at least one edge of the substrate is inserted into the positioning slit and extends toward the recessed portion.

[0007] Optionally, one edge or both edges of the substrate are inserted into the positioning gap and extend toward the recessed portion.

[0008] Optionally, the interior of the receiving device is solid or hollow.

[0009] Optionally, a spring sheet is disposed inside the receiving device to abut against an edge of the inserted substrate.

[0010] Optionally, the recessed portion is formed by extending one of the surfaces on both sides of the positioning gap to the other surface through the hollow interior of the receiving device.

[0011] Optionally, the receiving device of the electrospinning machine includes: a drum, which is a cylindrical structure with a hollow interior; a rotating shaft, which is arranged at the center position inside the drum; a plurality of reinforcing ribs, which are respectively fixedly connected between the inner wall of the drum and the rotating shaft; a positioning gap, which is arranged on the surface of the drum; and a recessed portion, which is formed by extending one of the surfaces on both sides of the positioning gap through the hollow interior of the receiving device to the other surface.

[0012] Optionally, the two cylindrical end surfaces of the drum are respectively provided with end plates, and the end plates cover the cylindrical end surfaces of the drum and extend along the outer edges of the cylindrical end surfaces of the drum and beyond the cylindrical end surfaces of the drum.

[0013] Optionally, the receiving device of the electrospinning machine includes: a flat plate; two positioning gaps, respectively arranged at two edges of the receiving surface of the flat plate; and a recessed portion, formed by the positioning gaps extending toward the inside of the flat plate, the substrate is coated on the surface of the flat plate and the two edges of the substrate are respectively inserted into the two positioning gaps and extend toward the recessed portion.

[0014] The beneficial effects of the utility model are as follows:

[0015] By setting the positioning gap, it is convenient to install the substrate on the receiving device and wrap the receiving surface, and it is convenient to remove the substrate, thereby ensuring that the substrate is accurately installed and convenient to observe, thereby improving the convenience of operation and the working efficiency.

[0016] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0018] Figure 1 A three-dimensional structural schematic diagram of an embodiment of a receiving device of an electrostatic spinning machine of the utility model is shown, and a cross section is shown for the sake of clarity.

[0019] Figure 2 for Figure 1 A front view cross section of an embodiment of.

[0020] Figure 3 for Figure 2 Magnified view of the circled part.

[0021] Figure 4 for Figure 1 A front view of an embodiment of.

[0022] Description of reference numerals:

[0023] 1-roller, 2-rotating shaft, 3-reinforcement rib, 4-positioning gap, 5-recessed portion, 6-substrate, 61-one edge of the substrate, 62-the other edge of the substrate, 7-receiving surface, 71-one side surface of the positioning gap, 72-the other side surface of the positioning gap, 8-cylindrical end surface of the roller, 9-end plate DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein.

[0025] Reference Figures 1 to 4 According to the utility model, the receiving surface 7 for receiving the spinning fiber of the receiving device of the electrospinning machine is provided with a positioning gap 4, and the positioning gap 4 is used to insert at least one edge of the substrate 6 for collecting the spinning fiber, and at least one edge of the substrate 6 extends from the positioning gap 4 along the receiving surface 7 of the receiving device and covers the receiving surface 7. Figure 3 As shown, the receiving surface 7 of the receiving device is Figure 3 The cylindrical surface of the drum shown in the figure is not a complete curved surface, but is provided with a small positioning gap 4, which is convenient for directly inserting the substrate 6 into the positioning gap 4 to fix and wrap the receiving surface 7. After the electrospinning is completed, the substrate 6 can be quickly removed, which effectively improves the working efficiency and ensures that the spun fibers attached to the substrate are not easily damaged. In the prior art, adhesive tape is usually used to stick the substrate to the receiving surface. When the adhesive tape is used for sticking, after the substrate is extended and wrapped along the receiving surface, if the starting edge is not straight, the other edge will be misplaced, and the adhesive tape needs to be torn off and readjusted. The receiving device of the present invention can flexibly adjust the position when wrapping the substrate by inserting the edge of the substrate into the positioning gap, avoiding misplacement on the other side, and effectively improving the working efficiency.

[0026] In one embodiment of the receiving device of the electrospinning machine according to the utility model, referring to Figure 3The positioning slit 4 can extend toward the inside of the receiving device in a direction parallel to the receiving surface 7 to form a recessed portion 5, and at least one edge of the substrate 6 is inserted into the positioning slit 4 and extends toward the recessed portion 5. Providing the recessed portion 5 can further improve the stability and reliability of the edge of the substrate 6 inserted into the positioning slit 4.

[0027] In the receiving device of the electrospinning machine according to the utility model, one edge or two edges of the substrate can be inserted into the positioning gap and extend toward the recessed portion. Figure 3 In the illustrated embodiment, two edges of the substrate 6 are inserted into the positioning slit 4 and extend toward the recessed portion 5. In practical applications, one edge or two edges of the substrate 6 can be selected and changed according to the specific circumstances to be inserted into the positioning slit 4 and fixed, so that the substrate 6 can be inserted into the positioning slit 4 and can extend along the receiving surface 7 and wrap the receiving surface 7 to realize the concept of the present invention. Generally, one edge of the substrate 6 is inserted into the positioning slit 4, and the other edge can be fixed to the receiving surface with tape, etc., so that the substrate 6 can be fixed. Compared with fixing both sides with tape, it is faster and the position of the substrate can be adjusted flexibly. Inserting the two edges of the substrate 6 into the positioning slit 4 makes the overall fixation of the substrate 6 better and faster. When the receiving device is drum-shaped, the two edges of the substrate 6 can be inserted into the same positioning slit 4, refer to Figures 1 to 4 When the receiving device is in the shape of a flat plate, two edges of the substrate 6 can be inserted into the two positioning gaps 4 respectively.

[0028] In the receiving device of the electrospinning machine according to the utility model, the interior of the receiving device can be solid or hollow. Figure 1 In the embodiment shown, the interior of the receiving device is hollow. However, the present invention is not limited thereto, and all structures of the receiving device that can realize the concept of the present invention are included in the protection scope of the present invention. The structure of the receiving device can be Figure 1 The drum shape shown can also be a flat plate shape, annular shape, tubular shape, cage shape, etc. The present invention is not limited to the internal structure of all receiving devices.

[0029] In the receiving device of the electrospinning machine according to the utility model, in order to further firmly fix the edge of the substrate inserted into the receiving device and improve stability, a spring piece can be arranged inside the receiving device to abut against the edge of the inserted substrate. The utility model does not limit the specific structure and shape of the spring piece, and any spring piece that can achieve this function can be arranged.

[0030] In a preferred embodiment according to the present invention, referring to Figures 1 to 3 The recessed portion 5 may be formed by extending one surface 71 of the surfaces on both sides of the positioning gap 4 through the hollow interior of the receiving device to the other surface 72 .

[0031] In one embodiment according to the present invention, referring to Figures 1 to 4 , the receiving device of the electrostatic spinning machine may include: a drum 1, which is a hollow cylindrical structure; a rotating shaft 2, which is arranged at the center of the drum 1; a plurality of reinforcing ribs 3, which are respectively fixedly connected between the inner wall of the drum 1 and the rotating shaft 2; a positioning gap 4, which is arranged on the surface of the drum 1; and a recessed portion 5, which is formed by extending one surface 71 of the surfaces on both sides of the positioning gap 4 through the hollow interior of the receiving device to the other surface 72. In this embodiment, with the rotating shaft 2 as the center, a plurality of reinforcing ribs 3 are arranged and connected to the inner wall of the drum 1 to strengthen the strength of the drum 1 and prevent the drum 1 from deforming. When electrostatic spinning is performed, one edge 61 of the substrate 6 is inserted into the positioning gap 4 on the receiving surface 7 of the drum 1 and extends to the recessed portion 5, the substrate 6 is folded over and extends along the receiving surface 7 of the drum 1 to cover the receiving surface 7 of the drum 1, and then the other edge 62 of the substrate 6 is also inserted into the positioning gap 4 and extends to the recessed portion 5.

[0032] In a preferred embodiment according to the present invention, referring to Figures 1 to 4 When the receiving device is a hollow roller, the hollow roller 1 can be made of a spring sheet. A side surface 71 of the positioning slit 4 of the roller 1 made of a spring sheet will abut against the edge (61, 62) of the inserted substrate 6, so that the edge (61, 62) of the substrate 6 is more reliably fixed in the positioning slit 4 and the recessed portion 5, and the substrate 6 is firmly covered on the receiving surface 7 of the roller 1.

[0033] In one embodiment according to the present invention, referring to Figure 4 , the two cylindrical end faces 8 of the drum 1 may be respectively provided with end plates 9, and the end plates 9 cover the cylindrical end face 8 of the drum 1 and extend beyond the cylindrical end face 8 of the drum 1 along the outer edge of the cylindrical end face 8 of the drum 1. When the electrospinning is completed, the excess spinning fiber membranes wrapped around the outside of the substrate 6 on both sides are first cut apart from the spinning fiber membranes on the receiving surface 7, i.e., the cylindrical surface of the drum 1, along the junction between the end plates 9 and the cylindrical end face 8, and then the spinning fiber membranes are gently cut apart along the positioning gap 4 on the receiving surface 7, i.e., the cylindrical surface of the drum 1, and the substrate 6 can be taken out to remove the spinning fiber membranes attached to the substrate 6. Figure 3 As shown, the end plates 9 are arranged beyond the two cylindrical end faces 8 of the drum 1, so that after the spinning is completed, the excess spinning fiber membrane at both ends outside the cylindrical surface of the drum can be cut along the drum end faces 8.

[0034] In one embodiment according to the utility model, the receiving device of the electrospinning machine may include: a flat plate, which is solid or hollow inside; two positioning slits, respectively arranged at two edges of the receiving surface of the flat plate; and a recessed portion, formed by the positioning slit extending in the direction of the inside of the flat plate, the substrate is coated on the surface of the flat plate and the two edges of the substrate are respectively inserted into the two positioning slits and extend into the recessed portion. In a preferred embodiment, the positioning slit of the recessed portion is formed extending in the direction of the inside of the flat plate and in the direction of the substrate coating. When electrospinning is performed, one edge of the substrate is inserted into the positioning slit of one edge of the receiving surface of the flat plate and extends into the recessed portion, the substrate is folded over and extended along the receiving surface of the flat plate to coat the receiving surface of the flat plate, and the other edge of the substrate is also inserted into the positioning slit of the other edge of the receiving surface of the flat plate and extends into the recessed portion.

[0035] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A receiving device for an electrospinning machine, characterized in that: The surface of the receiving device for receiving the spun fibers is provided with a positioning gap, and the positioning gap is used to insert at least one edge of the substrate for collecting the spun fibers, and at least one edge of the substrate extends from the positioning gap along the receiving surface of the receiving device and covers the receiving surface.

2. The receiving device of the electrospinning machine according to claim 1, characterized in that: The positioning slit extends toward the inside of the receiving device along a direction parallel to the receiving surface to form a recessed portion, and at least one edge of the substrate is inserted into the positioning slit and extends toward the recessed portion.

3. The receiving device of the electrospinning machine according to claim 2, characterized in that: One edge or both edges of the substrate are inserted into the positioning gap and extend toward the recessed portion.

4. The receiving device of the electrospinning machine according to claim 2, characterized in that: The interior of the receiving device is solid or hollow.

5. The receiving device of the electrospinning machine according to claim 2, characterized in that: The receiving device is provided with a spring sheet inside, which abuts against the edge of the inserted substrate.

6. The receiving device of the electrospinning machine according to claim 2, characterized in that: The recessed portion is formed by extending one of the surfaces on both sides of the positioning gap to the other surface through the hollow interior of the receiving device.

7. The receiving device of the electrospinning machine according to claim 6, characterized in that: include: The drum is a cylindrical structure with a hollow interior; A rotating shaft is arranged at the center of the drum; A plurality of reinforcing ribs are respectively fixedly connected between the inner wall of the drum and the rotating shaft; A positioning gap is provided on the surface of the drum; as well as The concave portion is formed by extending one of the surfaces on both sides of the positioning gap to the other surface through the hollow interior of the receiving device.

8. The receiving device of the electrospinning machine according to claim 7, characterized in that: The two cylindrical end surfaces of the drum are respectively provided with end plates, and the end plates cover the cylindrical end surfaces of the drum and extend along the outer edges of the cylindrical end surfaces of the drum to exceed the cylindrical end surfaces of the drum.

9. The receiving device of the electrospinning machine according to claim 2, characterized in that: include: flat; Two positioning gaps are respectively arranged at two edges of the receiving surface of the plate; as well as The concave portion is formed by the positioning slit extending toward the inside of the plate. The substrate is coated on the surface of the plate and two edges of the substrate are respectively inserted into the two positioning slits and extend toward the concave portion.

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