CN110974541A

CN110974541A - Needle combing device for grain forming, grain forming device and method for preparing medical patch

Info

Publication number: CN110974541A
Application number: CN201911153820.3A
Authority: CN
Inventors: 黄达; 单荣丽; 刘振辉; 王宠; 唐志虎
Original assignee: China Lucky Group Corp
Current assignee: China Lucky Group Corp
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-04-10

Abstract

The invention provides a needle combing device for grain forming, a grain forming device and a method for preparing medical patch, the needle combing device for grain forming comprises: an upper cover; a plurality of comb pins arranged at intervals, wherein the first ends of the comb pins in the length direction are connected with the upper cover. This gill box can be effectively used for forming the ventilative gas circuit in the glue film of medical treatment rubberized fabric to can nimble the density of adjustment gill box, the cross sectional dimension of gill box second end is with the line that forms different quantity, different shapes and size simultaneously as required, and preparation yield is high, easy operation, and degree of automation is high, easily realizes large-scale production.

Description

Needle combing device for grain forming, grain forming device and method for preparing medical patch

Technical Field

The invention relates to the field of coating and film forming, in particular to a needle combing device for grain forming, a grain forming device and a method for preparing medical patch.

Background

Medical patch or film products such as band-aid, viscous bandage, plaster, intramuscular effective patch and the like, have the medical function of themselves, and are directly attached to the skin of a human body, so that the air permeability of the medical patch or film product is required to be ensured, otherwise, the medical patch or film product can block the normal perspiration of the human body, and the skin surface can be moistened.

In order to solve the problem of skin stuffiness and dampness, the medical patch product generally adopts braided fabrics, non-woven fabrics and the like as a supporting body, the adhesive layer is distributed in a linear and blocky manner, and a ventilation air path is reserved in the middle. The design is carried out from the perspective of human bionics, curve lines (such as water ripples) have more advantages, but the operation steps for preparing the medical patch with the curve lines are complicated at present, and the yield is low. Thus, the related art for preparing medical patches is still in need of improvement.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, one object of the present invention is to provide a gill box for forming lines, which is simple and convenient to operate and has high production yield.

In one aspect of the invention, the invention provides a gill box for texturing. According to an embodiment of the present invention, the gill box for grain formation includes: an upper cover; a plurality of comb pins arranged at intervals, wherein the first ends of the comb pins in the length direction are connected with the upper cover.

According to some embodiments of the invention, the gill box for vein forming further comprises: and each comb pin is connected with the upper cover through one height adjusting component, and the height adjusting components are used for adjusting the height of the comb pins.

According to some embodiments of the invention, the height adjustment assembly comprises: the comb needle frame is arranged on one side, close to the comb needles, of the upper cover, a comb needle accommodating hole and a comb needle fixing hole are formed in the comb needle frame, the comb needle accommodating hole is formed in a first surface, far away from the upper cover, of the comb needle frame and used for accommodating a first end of the comb needles, the comb needle fixing hole is communicated with the comb needle accommodating hole, and the depth direction of the comb needle fixing hole is intersected with the depth direction of the comb needle accommodating hole; and one end of the comb needle fixing piece extends into the comb needle fixing hole and is used for fixing the comb needles.

According to some embodiments of the invention, the depth of the card wire receiving hole is greater than or equal to 10 mm.

According to some embodiments of the invention, the height adjustment assembly comprises: the height adjusting screw is arranged on the upper cover, and the first end of the comb pin is connected with the upper cover through the height adjusting screw.

According to some embodiments of the invention, the height adjusting screw includes a screw rod and a cap, the screw rod penetrates through the upper cover, the cap is disposed on a side of the upper cover away from the comb pins, one end of the screw rod in the length direction is connected with a first end of the comb pins, and the other end of the screw rod in the length direction is connected with the cap through threads.

According to some embodiments of the invention, the first end of the card wire is formed with a thread, the height adjustment screw comprises a cap provided on a side of the upper cover away from the card wire, and the first end of the card wire is connected to the cap by the thread.

According to some embodiments of the invention, the second end of the card wire has a cross-sectional shape of a regular shape or an irregular shape, preferably at least one of a circle, an oval, a diamond, a square and a rectangle.

According to some embodiments of the invention, the surface tension of the second end of the card wire is less than or equal to 30 dynes/cm.

According to some embodiments of the invention, the second end of the card wire is made of stainless steel with a teflon coating formed on the surface.

According to some embodiments of the invention, the vein forming gill box satisfies at least one of the following conditions: the maximum radial dimension of the second end of the card wire is 1 mm-3 mm; the length of the comb needle is 15 mm-30 mm; the distance between two adjacent comb pins is 2 mm-10 mm; the clearance between the inner wall of the comb wire accommodating hole and the comb wire is less than or equal to 0.3 mm.

In another aspect of the present invention, a texturing apparatus is provided. According to an embodiment of the present invention, the grain forming apparatus includes: a support; the sliding shaft is arranged on the bracket and can reciprocate along the axial direction; the comb needle device is fixed on the sliding shaft; and the bearing piece is arranged on the bracket, is arranged opposite to the second end of the comb needle in the comb needle device and is used for bearing the piece to be processed.

According to some embodiments of the invention, the carrier member is a soft roller.

According to some embodiments of the invention, the texturing apparatus further comprises at least one of: the limiting piece is arranged on the bracket and used for limiting the sliding shaft to move only in the axial direction; and the motor is arranged on the bracket and used for driving the sliding shaft to reciprocate along the axial direction.

In yet another aspect of the present invention, a method of making a medical patch is provided. According to an embodiment of the invention, the method comprises: forming a glue solution layer on the base material; forming predetermined lines in the glue layer by using the gill box or the line forming device; and curing the glue solution layer with the predetermined lines.

The invention has at least the following beneficial effects:

1. the comb needle device can scratch the adhesive layer when the adhesive layer is not solidified so as to form preset grains in the adhesive layer, is simple to operate, is not easy to damage a base material bearing the adhesive layer, and can flexibly adjust the distribution, density, size and the like of the comb needles according to requirements so as to obtain grains with different shapes and sizes.

2. The carding machine can also be provided with a height adjusting assembly, so that the height of all the carding needles can be ensured to be proper, the problems that the distances between the carding needles and a piece to be processed are different, the acting force between the carding needles and the piece to be processed is different, the scraping force is large, the base material of the bearing adhesive layer is very easy to scrape, the scraping force is small, the adhesive liquid at the corresponding position cannot be completely scraped, the adhesive liquid is remained to block gas from permeating out, and the finally obtained product has uneven overall feeling, deep and shallow water ripple lines and poor effect are solved.

3. The section of the second end of the comb needle in the comb needle device can be adjusted to different shapes, so that the widths of different positions of a line are different, the line is more uniformly distributed on the adhesive layer, and poor local air permeability is avoided.

4. The invention also screens the surface tension of the card wire, so that the card wire can not be glued in the working process, frequent shutdown for cleaning the card wire is not needed, the time is saved, the line edge is neat, and the yield is high;

5. the grain forming device provided by the invention adopts the soft roller, so that a buffering effect can be achieved in the working process, the distance between the object carrying piece and the second end of the comb needle is adjusted within a certain range, the base material of the bearing glue layer is not scraped, and the processing yield is favorably improved.

6. The method for preparing the medical patch has simple steps and easy operation, forms lines before the glue solution is solidified, is easier to process, and has high processing yield and good effect.

Drawings

Fig. 1 is a schematic structural view of a needle comber according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a needle comber according to another embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a glue layer with a texture according to an embodiment of the invention.

Fig. 4 is a schematic structural diagram of a glue layer with a texture according to another embodiment of the invention.

FIG. 5 is a schematic structural view of a needle comber according to another embodiment of the present invention.

FIG. 6 is a schematic structural view of a needle comber according to another embodiment of the present invention.

FIG. 7 is a schematic structural view of a needle comber according to another embodiment of the present invention.

Fig. 8 is a schematic sectional view taken along line a-a' of fig. 7.

Fig. 9 is a schematic structural diagram of a texturing apparatus according to an embodiment of the present invention.

Detailed Description

The following describes embodiments of the present invention in detail. The following examples are illustrative only and are not to be construed as limiting the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.

In one aspect of the invention, the invention provides a gill box for texturing. According to an embodiment of the present invention, referring to fig. 1, the gill box for vein formation includes: an upper cover 12; a plurality of comb pins 11 arranged at intervals, and the first ends of the comb pins 11 in the length direction are connected with the upper cover 12. This gill needle ware can be effectively used for forming the ventilative gas circuit in the glue film of medical treatment rubberizing, in the preparation process, can form the glue solution layer on the substrate, then utilize the second end on the gill needle length direction to be used for forming the glue solution of glue film and scratch, form ventilative gas circuit (line promptly), and can be as required nimble adjust the density of gill needle, the cross sectional dimension of gill needle second end is in order to form different quantity simultaneously, the line of different shapes and size, the preparation yield is high, the operation is thus simple, and degree of automation is high, easily realize large-scale production.

According to some embodiments of the present invention, the specific shape, material, and the like of the upper cover are not particularly limited, and may be flexibly selected according to actual needs, and in some embodiments, the upper cover may be a flat plate as shown in fig. 1.

According to some embodiments of the present invention, the comb pins may be directly coupled to the upper cover (refer to fig. 1) or may be coupled to the upper cover through the comb frame 21 (refer to fig. 2). Specifically, referring to fig. 2, the card wire frame 21 may be provided with a card wire receiving hole into which a first end of the card wire 11 in the length direction may extend.

According to some embodiments of the present invention, the specific shape of the comb pin is not particularly limited, as long as the second end can scratch the glue solution to form lines when preparing the glue layer in the medical patch, and those skilled in the art can flexibly select the shape according to the needs. In some embodiments, a portion of the comb pins adjacent to the upper cover (i.e., the portion including the first end) may be cylindrical for easy preparation and processing, while the specific shape of the other portion (i.e., the portion including the second end) may be flexibly selected according to the shape of the vein to be formed, and in particular, the cross-sectional shape of the second end of the comb pins may be regular (e.g., regular geometric shape: triangle, quadrangle, pentagon, etc.) or irregular (e.g., closed shape defined by straight lines and curves, closed shape defined by curves, etc.).

In some embodiments, the second end of the card wire may have a cross-sectional shape of at least one of a circle, an ellipse, a diamond, a square, and a rectangle. When the cross-sectional shape of the second end of the card wire is circular or square, lines with uniform width at any position can be formed, and when the cross-sectional shape of the second end of the card wire is elliptical, rhombic or rectangular, lines with different positions and widths can be formed by adjusting the angle of the card wire for drawing the glue solution layer, for example, lines with narrow width (the line width is equal to the elliptical short axis) can be formed by drawing the glue solution along the direction vertical to the short axis by the card wire with elliptical cross-sectional shape at the second end, lines with wide width (the line width is equal to the elliptical long axis) can be formed by drawing the glue solution along the direction vertical to the long axis by the card wire. Specifically, taking water ripple as an example for explanation, referring to fig. 3, the shape of the texture 100 is a sine curve shape, the widths of different positions of the texture 100 are consistent, and a ventilation air passage can be formed in the adhesive layer 200, so that the medical patch has good ventilation performance, but compared with other positions, at the peak and valley positions (the peak refers to the region a shown in fig. 3) of the texture 100, the width of the adhesive layer between two adjacent textures is larger, the area ratio of the adhesive layer is larger, and the ventilation performance of the medical patch is poorer than that at other positions; referring to fig. 4, the shape of the texture 300 is a sine curve shape, the widths of different positions of the texture 300 are different, specifically, the peak and valley positions of the texture 300 (the peak refers to the region C shown in fig. 4), the width of the texture 300 is wide, the area of the adhesive layer 400 between two adjacent textures is small, the air permeability is not deteriorated, and the widths of the textures 300 at other positions (refer to the region D in fig. 4) are narrow, so that the air permeability can be ensured, the area of the adhesive layer 400 is suitable, therefore, the adhesive layer and the texture are distributed more uniformly, and the use performance of the medical patch is better.

According to some embodiments of the invention, the size of the second end of the card wire may be adjusted according to the actual formed vein. In some embodiments, the maximum radial dimension of the second end of the comb pins (i.e., the maximum distance between any two points on the cross-section of the second end) may be 1mm to 3mm (e.g., 1mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.3mm, 2.6mm, 2.7mm, 2.9mm, 3.0mm, etc.), thereby meeting the manufacturing requirements of most medical patches. According to some embodiments of the present invention, the length of the comb wire can be adjusted according to the need, and specifically can be 15mm to 30mm (e.g. 15mm, 20mm, 25mm, 30mm, etc.). Therefore, the processing requirement can be met, the processing cannot be too short and difficult to process, and the processing cannot be too long and difficult to control and increase the volume of equipment. According to some embodiments of the present invention, the distance between two adjacent comb pins may be adjusted according to the density of the lines, and specifically may be 2mm to 10mm (e.g., 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc.). Therefore, the medical adhesive tape has good and uniform air permeability, reasonable adhesive layer distribution and better bonding effect.

It can be understood that when the comb device of the invention is used for scratching glue solution to form lines, a proper distance is kept between the second ends of the plurality of comb pins and the base material bearing the glue solution layer, so that the comb pins can scrape the glue solution cleanly in the operation process to avoid glue solution residue, and the base material can not be damaged. In order to better satisfy the above requirements, in some embodiments of the present invention, referring to fig. 5, the texturing card wire device further includes: a plurality of height adjusting assemblies 20, each of the card wires 11 being connected to the upper cover 12 through one of the height adjusting assemblies 20, the height adjusting assemblies 20 being for adjusting the height of the card wires 11. From this, can adjust the height of each card wire through high adjusting part in a flexible way for better cooperation between card wire and the substrate can not lead to the frictioning incomplete because the distance between card wire and the substrate is too big (the dynamics of action is little), also can not damage the substrate because the card wire with add distance undersize between (the dynamics of action is big) simultaneously, the course of working is smooth and easy. Moreover, the height of each card wire can be adjusted, so that the card wire can adapt to more complex working environment.

It can be understood that under the general condition all card wire second ends are the parallel and level, from this, can conveniently form the line with glue solution layer interact, guarantee that every line is clear, do not have the frictioning incomplete, can not harm the substrate yet, but among the actual operation process, because complete parallel and level is hardly accomplished in restriction such as technology, glue solution layer unevenness, set up the height that above-mentioned altitude mixture control subassembly then can adjust each card wire in a flexible way according to actual need, guarantee that processing is smooth and easy, do benefit to the improvement yield.

According to some embodiments of the present invention, referring to fig. 6, the height adjustment assembly 20 comprises: a comb frame 21, wherein the comb frame 21 is disposed on one side of the upper cover 12 close to the comb pins 11, the comb frame 21 is provided with comb pin receiving holes and comb pin fixing holes, the comb pin receiving holes are disposed on a first surface of the comb frame 21 away from the upper cover 12 and used for receiving first ends of the comb pins 11, the comb pin fixing holes are communicated with the comb pin receiving holes, and the depth directions of the comb pin fixing holes are intersected with the depth directions of the comb pin receiving holes; and one end of the card wire fixing piece 22 extends into the card wire fixing hole and is used for fixing the card wire 11. Therefore, the height of each card wire can be flexibly adjusted by adjusting the card wire fixing piece.

It will be appreciated that the particular type of card wire fixing member is not particularly limited as long as it can effectively fix the card wire. In some embodiments, the comb fixing member may be a top thread, the top thread may be adjustable in tightness by rotation, the comb may be moved to adjust the height up and down when the top thread is unscrewed, and the comb may be fixed by screwing the top thread down. Therefore, the height of each card wire can be flexibly adjusted, the matching degree of the card wire and the base material is higher, the processing process is smoother, and the processing efficiency and the yield are higher.

According to some embodiments of the invention, the depth of the card wire receiving hole is greater than or equal to 10mm, in particular 20m, 30mm, 40mm, 50mm, etc. Therefore, a larger height adjusting space can be provided for the card wire, and the application range is wider.

According to some embodiments of the invention, a clearance between the card wire and an inner wall of the card wire receiving bore is less than or equal to 0.3 mm. Within the range, the comb pins can be better fixed, and if the gap is too large, the comb pins can shake in the comb pin accommodating holes and are not easy to fix.

According to some embodiments of the invention, the height adjustment assembly comprises: the height adjusting screw is arranged on the upper cover 12, and the first end of the comb wire is connected with the upper cover 12 through the height adjusting screw. Therefore, the height of the card wire can be conveniently adjusted through the height adjusting screw.

In some embodiments, referring to fig. 7 and 8, the height adjusting screw 23 includes a screw 231 penetrating the upper cover 12 and a cap 232, the cap 232 is disposed on a side of the upper cover 12 away from the comb pins 11, one end of the screw 231 in the length direction is connected to a first end of the comb pins 11, and the other end of the screw 231 in the length direction is connected to the cap 232 through a screw. In other embodiments, for convenience of preparation and assembly, the first end of the comb pins 11 is formed with a thread, the height adjustment screw 23 includes a cap 232, the cap 232 is disposed on a side of the upper cover 12 away from the comb pins 11, and the first end of the comb pins 11 is connected to the cap 232 through the thread. Therefore, an independent screw rod is not needed, the structure is simple, the processing is convenient, and the assembly is easy.

According to some embodiments of the present invention, in order to make the processing smoother and the processing yield higher, the surface tension of the second end of the comb wire may be less than or equal to 30 dyne/cm, and specifically may be 18 to 20 dyne/cm. In the surface tension range, the card wire is not easy to glue, the edges of the lines are smooth and neat, long and frequent halt is not needed for cleaning, the card wire can work for a long time, and the processing efficiency is higher.

According to some embodiments of the present invention, the material of the second end of the comb pin can be flexibly selected according to actual needs, for example, the material includes stainless steel, polytetrafluoroethylene or composite materials thereof. In some embodiments, the material of the comb pins is stainless steel with a polytetrafluoroethylene coating formed on the surface. From this, stainless steel hardness is good, non-deformable, anti-solvent is corrosion-resistant, stable performance under high temperature, repetitiveness is good in succession many times, and polytetrafluoroethylene material can anti-solvent is corrosion-resistant, surface tension is little, difficult kiss, stability is better during the use, both combined use can make the broach have stainless steel and polytetrafluoroethylene's advantage concurrently, both have the stability of using for a long time, still have less surface tension, long back broach surface of operating duration does not have the kiss wire drawing phenomenon, the planarization of the line of formation is good, repetitiveness is good for many times.

In another aspect of the present invention, a texturing apparatus is provided. According to an embodiment of the present invention, referring to fig. 9, the texturing apparatus includes: a bracket 1; the sliding shaft 2 is arranged on the bracket 1, and the sliding shaft 2 can reciprocate along the axial direction; the carding needle device 500 is arranged in the front, and the carding needle device 500 is fixed on the sliding shaft 2; and the object carrying piece 3 is arranged on the bracket 1 and is opposite to the second end of the comb needle 11 in the comb needle device 500, and is used for carrying the piece to be processed. This line forming device can be convenient, swift form predetermined line on the glue film of medical rubberized fabric etc. makes it have good gas permeability, can adjust the card wire as required in a flexible way and form different lines, and degree of automation is high, and the preparation yield is high.

Specifically, the piece to be treated can be the substrate that is formed with the glue layer, and the piece to be treated can be placed on carrying the thing piece, and the glue layer sets up towards the comb needle ware, and then the comb needle ware can be along its axial reciprocating motion of sliding shaft edge, and the piece to be treated can be along the direction motion that intersects (like looks perpendicular) with reciprocating motion simultaneously to can form predetermined line on the glue layer of the piece to be treated.

According to the embodiment of the present invention, the bracket is used for fixing the sliding shaft, the comb device, and the like, and the specific shape and structure are not particularly limited as long as the fixing function can be effectively performed. In some embodiments, referring to fig. 9, the bracket may include a base 101, two opposite end plates 102, and a fixing shaft 103, wherein the two end plates 102 are oppositely disposed on the base 101, and at least one fixing shaft 103 is disposed between the two end plates 102 to fix the end plates.

According to some embodiments of the present invention, the carrier is a soft roller, and particularly, may be a silica gel roller. So, carry the thing piece and can have certain elasticity, can finely tune the distance between broach and the substrate, guarantee that processing is smooth and easy to go on, and can not harm the substrate. For example, when the distance between a certain comb needle and the substrate is slightly smaller, the object carrying piece can be pressed down due to the elasticity of the object carrying piece, the glue scraping effect cannot be influenced, and the substrate cannot be damaged by the elasticity protection.

According to some embodiments of the invention, the texturing apparatus further comprises at least one of: the limiting piece 4 is arranged on the bracket 1 and used for limiting the sliding shaft 2 to move only in the axial direction; and the motor 5 is arranged on the bracket 1 and used for driving the sliding shaft 2 to reciprocate along the axial direction. Therefore, the limiting piece can enable the sliding shaft to move only in one direction, operation and control are convenient, and the motor can effectively drive the sliding shaft to move.

In another aspect of the present invention, the present invention provides a method of preparing a medical patch. According to an embodiment of the invention, the method comprises: forming a glue solution layer on the base material; forming predetermined lines in the glue layer by using the gill box or the line forming device; and curing the glue solution layer with the predetermined lines. By the method, the medical patch can be conveniently and quickly prepared, the automation degree is high, the processing yield is high, and the cost is low.

According to some embodiments of the present invention, the specific type of medical patch is not particularly limited, and may be any medical patch, including, but not limited to, a band-aid, an adhesive bandage, a plaster, an intramuscular patch, and the like.

The particular method of forming the gel layer on the substrate according to some embodiments of the present invention is not particularly limited, and may be, for example, coating, knife coating, spraying, and the like, and the particular operating steps and parameters may be performed according to conventional techniques. According to some embodiments of the present invention, the method for curing the glue solution is not particularly limited, and a suitable curing manner, such as photo-curing, thermal-curing, etc., may be selected according to the specific kind of the glue solution, and the specific operation steps and parameters may also be performed according to conventional operations.

According to some embodiments of the present invention, the specific type of the substrate may be a common substrate for medical patch, such as non-woven fabric, etc., and the specific type of the glue solution may also be flexibly selected according to actual needs, such as pressure-sensitive glue (polyacrylate pressure-sensitive glue), etc.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A line is card wire ware for shaping, its characterized in that includes:

an upper cover;

a plurality of comb pins arranged at intervals, wherein the first ends of the comb pins in the length direction are connected with the upper cover.

2. The gill box of claim 1, further comprising:

and each comb pin is connected with the upper cover through one height adjusting component, and the height adjusting components are used for adjusting the height of the comb pins.

3. The gill box for grain forming according to claim 2, wherein the height adjusting assembly satisfies the following condition (1) or condition (2):

(1) the height adjustment assembly includes: the comb needle frame is arranged on one side, close to the comb needles, of the upper cover, a comb needle accommodating hole and a comb needle fixing hole are formed in the comb needle frame, the comb needle accommodating hole is formed in a first surface, far away from the upper cover, of the comb needle frame and used for accommodating a first end of the comb needles, the comb needle fixing hole is communicated with the comb needle accommodating hole, and the depth direction of the comb needle fixing hole is intersected with the depth direction of the comb needle accommodating hole;

one end of the comb needle fixing piece extends into the comb needle fixing hole and is used for fixing the comb needles;

(2) the height adjustment assembly includes: the height adjusting screw is arranged on the upper cover, and the first end of the comb pin is connected with the upper cover through the height adjusting screw.

4. The texturing machine of claim 3, wherein the depth of the card wire receiving hole is greater than or equal to 10 mm.

5. The gill box for grain forming according to claim 3, wherein the gill box and the height adjusting screw satisfy the following condition (3) or condition (4):

(3) the height adjusting screw comprises a screw rod and a cap, the screw rod penetrates through the upper cover, the cap is arranged on one side, away from the comb pins, of the upper cover, one end of the screw rod in the length direction is connected with the first end of the comb pins, and the other end of the screw rod in the length direction is connected with the cap through threads;

(4) the first end of the comb needle is provided with a thread, the height adjusting screw comprises a cap, the cap is arranged on one side, away from the comb needle, of the upper cover, and the first end of the comb needle is connected with the cap through the thread.

6. The gill box of claim 1, wherein the gill box satisfies at least one of the following conditions:

the cross-sectional shape of the second end of the card wire is a regular shape or an irregular shape, preferably at least one of a circle, an ellipse, a diamond, a square and a rectangle;

the surface tension of the second end of the card wire is less than or equal to 30 dynes/cm;

the second end of the comb needle is made of stainless steel with a polytetrafluoroethylene coating formed on the surface.

7. The gill box for grain forming according to any one of claims 3 to 6, wherein at least one of the following conditions is satisfied:

the maximum radial dimension of the second end of the card wire is 1 mm-3 mm;

the length of the comb needle is 15 mm-30 mm;

the distance between two adjacent comb pins is 2 mm-10 mm;

the clearance between the inner wall of the comb wire accommodating hole and the comb wire is less than or equal to 0.3 mm.

8. A grain forming device, comprising:

a support;

the sliding shaft is arranged on the bracket and can reciprocate along the axial direction;

a gillbox according to any one of claims 1 to 7, which is fixed to the sliding shaft;

the bearing piece is arranged on the bracket, is opposite to the second end of the comb needle in the needle combing device and is used for bearing the piece to be processed;

optionally, the texturing device further comprises at least one of:

the limiting piece is arranged on the bracket and used for limiting the sliding shaft to move only in the axial direction;

and the motor is arranged on the bracket and used for driving the sliding shaft to reciprocate along the axial direction.

9. The texturing apparatus of claim 8, wherein the carrier member is a soft roller.

10. A method of making a medical patch, comprising:

forming a glue solution layer on the base material;

forming a predetermined pattern in the gum layer using the gill box of any one of claims 1 to 7 or the pattern forming device of claim 8 or 9;

and curing the glue solution layer with the predetermined lines.