Chitosan non-woven fabric production system

Abstract

The utility model provides a chitosan non-woven fabric production system. The system comprises a gauze discharging device, a feeding device and a compounding device, the gauze discharging device is arranged on one side of the feeding device, and the compounding device is arranged on the other side of the feeding device; wherein the gauze discharging device comprises a gauze discharging roller, a traction roller is arranged on one side of the gauze discharging roller, and a stripping roller is arranged below the traction roller; the feeding device comprises a material box, and a first limiting roller is arranged in the material box. The compounding device comprises a compounding roller, a film laminating roller is arranged below the compounding roller, and a material receiving roller is arranged on one side of the compounding roller. The loading capacity of the non-woven fabric base material on the chitosan particles can be improved, and the three-dimensional loading mode of the non-woven fabric base material can make more sufficient contact with wound blood in the using process of the non-woven fabric base material.

Description

Technical Field

[0001] The utility model relates to the technical field of chitosan non-woven fabric production, in particular to a chitosan non-woven fabric production system. Background Art

[0002] The non-woven fabric with chitosan particles loaded on the surface can retain the chitosan particles at the wound surface where blood flow needs to be blocked, and make it fully contact with the wound blood for hemostasis, and has been widely used in controlling bleeding. At present, the production line for the non-woven fabric with chitosan particles loaded on the surface is usually a laminating machine and a coating machine with a powder spraying mechanism, etc. The chitosan particles are sprayed onto the moving glue-coated non-woven fabric substrate below through an electrostatic powder spraying machine or a powder spraying roller installed on the equipment, and then formed by roll pressing and compounding. As Figure 1 shown in the existing chitosan non-woven fabric 100, in this type of production line, the chitosan particles are under the pressure of the pressure roller during the production process, and the entire surface of the particles is in full contact with the substrate, thus reducing the available bonding sites between the glue-coated non-woven fabric and the particles. Therefore, the amount of chitosan particles that the non-woven fabric can load is very limited. When the chitosan particles completely occupy the substrate surface, the chitosan particles on the non-woven fabric reach saturation. If the loading amount is continued to be increased, serious particle dropping will occur due to the lack of a firm bond between the chitosan particles and the substrate, which not only wastes resources but also weakens the efficacy of the product. In addition, when producing chitosan non-woven fabric as a medical dressing, it should be carried out in a clean workshop. However, the particle dust generated by powder spraying is not conducive to ensuring the cleanliness requirements of the clean workshop. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a chitosan non-woven fabric production system to increase the loading amount of chitosan particles on the gauze.

[0004] To solve the above technical problem, the technical solution of the present model is as follows:

[0005] A chitosan non-woven fabric production system, comprising:

[0006] A gauze feeding device, a feeding device and a compounding device, the gauze feeding device is arranged on one side of the feeding device, and the compounding device is arranged on the other side of the feeding device;

[0007] Among them, the gauze feeding device includes: a gauze feeding roller, a traction roller is arranged on one side of the gauze feeding roller, and a peeling roller is arranged below the traction roller;

[0008] The feeding device includes: a material box, and a first limiting roller is arranged in the material box;

[0009] The compounding device includes: a compounding roller, a laminating roller is arranged below the compounding roller, and a winding roller is arranged on one side of the compounding roller;

[0010] Among them, the coated non-woven fabric coil on the gauze feeding roller removes the protective film through the traction roller rotating clockwise and the peeling roller rotating clockwise, and a non-woven fabric with glue is obtained; the non-woven fabric with glue is stretched by the traction roller rotating clockwise onto the first limiting roller rotating counterclockwise in the material box, and chitosan particles are bonded in the material box to obtain a non-woven fabric loaded with chitosan particles; the non-woven fabric loaded with chitosan particles passes through the compounding roller rotating clockwise and is compounded with the protective layer on the film covering roller rotating clockwise to form a chitosan non-woven fabric, and the chitosan non-woven fabric is collected into a coil by the winding roller rotating clockwise.

[0011] Optionally, the feeding device further includes: a brush roller, the brush roller is installed on the side wall of the material box, and the brush roller is located above the chitosan particles in the material box;

[0012] Among them, after the non-woven fabric loaded with chitosan particles passes through the brush roller rotating counterclockwise, it then passes through the compounding roller rotating clockwise and is compounded with the protective layer on the film covering roller rotating clockwise to form a chitosan non-woven fabric.

[0013] Optionally, a plurality of brushes are provided on the brush roller, and the plurality of brushes are evenly distributed on the surface of the brush roller.

[0014] Optionally, the included angles between the plurality of brushes and the surface of the brush roller are all acute angles.

[0015] Optionally, a second limiting roller is provided in the material box, and the second limiting roller is located between the first limiting roller and the brush roller;

[0016] Among them, the non-woven fabric with glue is stretched by the traction roller rotating clockwise into the material box, passes through the first limiting roller rotating counterclockwise and the second limiting roller rotating counterclockwise in sequence, and chitosan particles are bonded in the material box to obtain a non-woven fabric loaded with chitosan particles.

[0017] Optionally, lifting brackets are installed at the bottoms of the first limiting roller and the second limiting roller.

[0018] Optionally, the lifting bracket is a hydraulic lifting bracket or a pneumatic lifting bracket.

[0019] Optionally, a cover plate is provided on the material box, and the cover plate is provided with a first opening and a second opening;

[0020] Among them, the non-woven fabric with glue coating is drawn through the first opening into the material box by the traction roller rotating clockwise; the non-woven fabric loaded with chitosan particles passes through the second opening and is compounded with the protective layer on the compounding roller rotating clockwise and the film covering roller rotating clockwise to form a chitosan non-woven fabric.

[0021] Optionally, the material box is detachably connected to the cover plate.

[0022] Optionally, the width of the material box is greater than the length of the gauze feeding roller.

[0023] The above scheme of the present utility model has at least the following beneficial effects:

[0024] In the above scheme of the present utility model, the protective film on the glue-coated non-woven fabric is removed by the peeling roller, and the glue-coated non-woven fabric is drawn to the limiting roller in the material box by the traction roller rotating clockwise. The glue-coated side of the non-woven fabric bonds chitosan particles in the material box. Under the traction force of the compounding roller rotating clockwise, the non-woven fabric loaded with chitosan particles is compounded with the protective layer to form a chitosan non-woven fabric. Finally, it is collected into a coil by the take-up roller rotating clockwise. Compared with the "surface-surface bonding" of the powder spreading production equipment in the prior art, in the embodiment of the present utility model, the chitosan particles are not laid flat on the surface of the non-woven fabric, but are "point-point bonded" through sites, which can improve the loading amount of the non-woven fabric substrate for chitosan particles, and its three-dimensional loading method can make the contact with the wound blood more sufficient during use. Description of the Drawings

[0025] Figure 1 is a schematic diagram of the existing chitosan non-woven fabric loaded with chitosan particles;

[0026] Figure 2 is a schematic structural diagram of the chitosan non-woven fabric production system according to the embodiment of the present utility model;

[0027] Figure 3 is a schematic diagram of the improved chitosan non-woven fabric loaded with chitosan particles according to the embodiment of the present utility model.

[0028] Description of the reference numerals: 11 - gauze feeding roller, 12 - traction roller, 13 - peeling roller, 21 - material box, 211 - cover plate, 2111 - first opening, 2112 - second opening, 22 - first limiting roller, 23 - brush roller, 24 - second limiting roller, 231 - brush, 25 - liftable support, 31 - compounding roller, 32 - film covering roller, 33 - take-up roller, 100 - existing chitosan non-woven fabric, 200 - improved chitosan non-woven fabric. Detailed Embodiments

[0029] Exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model can be understood more thoroughly and the scope of the present utility model can be completely conveyed to those skilled in the art.

[0030] As Figure 2 shown, an embodiment of the present utility model provides a chitosan non-woven fabric production system, including:

[0031] a gauze feeding device, a feeding device, and a compounding device. The gauze feeding device is arranged on one side of the feeding device, and the compounding device is arranged on the other side of the feeding device;

[0032] Among them, the gauze feeding device includes: a gauze feeding roller 11, a traction roller 12 is arranged on one side of the gauze feeding roller 11, and a peeling roller 13 is arranged below the traction roller 12;

[0033] The feeding device includes: a material box 21, and a first limiting roller 22 is arranged inside the material box 21;

[0034] The compounding device includes: a compounding roller 31, a film covering roller 32 is arranged below the compounding roller 31, and a winding roller 33 is arranged on one side of the compounding roller 31;

[0035] Among them, the coated non-woven fabric roll on the gauze feeding roller 11 removes the protective film through the clockwise rotating traction roller 12 and the clockwise rotating peeling roller 13 to obtain a non-woven fabric with coating; the non-woven fabric with coating is stretched by the clockwise rotating traction roller 12 onto the counterclockwise rotating first limiting roller 22 in the material box 21, and chitosan particles are bonded in the material box 21 to obtain a non-woven fabric loaded with chitosan particles; the non-woven fabric loaded with chitosan particles passes through the clockwise rotating compounding roller 31 and is compounded with the protective layer on the clockwise rotating film covering roller 32 to form a chitosan non-woven fabric, and the chitosan non-woven fabric is wound into a roll by the clockwise rotating winding roller 33.

[0036] The chitosan non-woven fabric production system proposed by the embodiment of the present utility model removes the protective film on the coated non-woven fabric through the peeling roller, and stretches the non-woven fabric with coating onto the limiting roller in the material box by the clockwise rotating traction roller. Under the action of the limiting roller, the coated side of the non-woven fabric bonds chitosan particles in the material box. Under the action of the clockwise rotating compounding roller, the non-woven fabric loaded with chitosan particles is compounded with the protective layer on the film covering roller to form a chitosan non-woven fabric, and finally it is wound into a roll by the clockwise rotating winding roller. Compared with the "surface-to-surface adhesion" of the powder spreading production equipment in the prior art (such asFigure 1 As shown in the figure, in the improved chitosan non-woven fabric 200 of the embodiment of the present invention, the chitosan particles are not laid flat on the surface of the non-woven fabric, but are "point-to-point bonded" through sites (such as Figure 3 shown), which can improve the loading capacity of the non-woven fabric substrate for chitosan particles, and its three-dimensional loading method can make the contact with wound blood more sufficient during use.

[0037] Such as Figure 2 shown, in an alternative embodiment of the present invention, the feeding device further includes: a brush roller 23, the brush roller 23 is installed on the side wall of the material box 21, and the brush roller 23 is located above the chitosan particles in the inner shell of the material box 21;

[0038] Wherein, after the non-woven fabric loaded with chitosan particles passes through the counterclockwise rotating brush roller 23, it then passes through the clockwise rotating composite roller 31 and is compounded with the protective layer on the clockwise rotating film laminating roller 32 to form a chitosan non-woven fabric.

[0039] Specifically, the brush roller is located on the side close to the composite roller, and the running direction of the brush roller is opposite to the advancing direction of the non-woven fabric. As Figure 2 shown, if the non-woven fabric moves from left to right, the rotation direction of the brush roller is counterclockwise. The brush roller gently brushes the chitosan particles that are not firmly loaded on the surface of the non-woven fabric loaded with chitosan particles back into the material box, avoiding the waste of resources caused by the dropping of the chitosan particles that are not firmly loaded in other processes, and at the same time avoiding the adverse effects of particle dust on the clean workshop, which is beneficial to saving costs, improving the cleanliness of the production environment and personnel safety.

[0040] Such as Figure 2 shown, in an alternative embodiment of the present invention, a plurality of brushes 231 are provided on the brush roller 23, and the plurality of brushes 231 are evenly distributed on the surface of the brush roller 23.

[0041] Specifically, the inclination directions of the plurality of brushes are the same as the advancing direction of the non-woven fabric. As Figure 2 shown, if the non-woven fabric moves from left to right, the inclination directions of the plurality of brushes are inclined to the right. When using the plurality of brushes to gently brush the chitosan particles that are not firmly loaded on the surface of the non-woven fabric back into the material box, it is possible to avoid damaging the chitosan particles and the non-woven fabric due to the brushing force of the brushes, improving production safety and product quality.

[0042] Such as Figure 2 shown, in an alternative embodiment of the present invention, the angles between the plurality of brushes 231 and the surface of the brush roller 23 are all acute angles.

[0043] Specifically, to ensure that the inclination directions of multiple brushes are the same as the advancing direction of the non-woven fabric, the angles between the multiple brushes and the surface of the brush roller are all set as acute angles, reducing the friction between the brushes and the non-woven fabric and avoiding damage to the non-woven fabric.

[0044] As Figure 2 shown, in an optional embodiment of the present invention, a second limiting roller 24 is provided in the material box 21, and the second limiting roller 24 is located between the first limiting roller 22 and the brush roller 23;

[0045] Among them, the non-woven fabric with glue is drawn by the traction roller 12 rotating clockwise into the material box 21, passes through the first limiting roller 22 rotating counterclockwise and the second limiting roller 24 rotating counterclockwise in sequence, and binds chitosan particles in the material box 21 to obtain a non-woven fabric loaded with chitosan particles.

[0046] Specifically, both the first limiting roller and the second limiting roller move counterclockwise, in the opposite direction to the movement direction of the traction roller. The lower sides of the first limiting roller and the second limiting roller are immersed in the chitosan particle material in the material box; the use of the two limiting rollers to apply a force to the non-woven fabric can not only draw the non-woven fabric with glue into the material box, but also play a limiting role, ensuring that the non-woven fabric with glue binds enough chitosan particles in the material box, improving the loading amount and production efficiency.

[0047] As Figure 2 shown, in an optional embodiment of the present invention, lifting brackets 25 are installed at the bottoms of both the first limiting roller 22 and the second limiting roller 24.

[0048] Specifically, lifting brackets are installed at the bottoms of the limiting rollers, which is convenient for stretching the non-woven fabric substrate during the initial installation on the machine. At the same time, the height of the non-woven fabric substrate interface can be adjusted according to the amount of material in the material box (the height of chitosan particles), so as to fully bond the particles.

[0049] In an optional embodiment of the present invention, the lifting bracket 25 is a hydraulic lifting bracket or a pneumatic lifting bracket.

[0050] Specifically, the hydraulic lifting bracket has the advantages of strong load-bearing capacity, convenient height adjustment, simple operation, good stability, high reliability, etc.; the pneumatic lifting bracket has the advantages of large load, low noise, fast lifting, small seismic resistance, strong self-falling buffering performance, and smoothness. According to the actual situation, different types of lifting brackets can be selected to provide applicability.

[0051] As Figure 2 shown, in an optional embodiment of the present invention, a cover plate 211 is provided on the material box 21, and the cover plate 211 is provided with a first opening 2111 and a second opening 2112;

[0052] Among them, the non-woven fabric with glue coating is drawn through the first opening 2111 into the material box 21 by the traction roller 12 rotating clockwise; the non-woven fabric loaded with chitosan particles passes through the second opening 2112 and is compounded with the protective layer on the compounding roller 31 rotating clockwise and the film covering roller 32 rotating clockwise to form a chitosan non-woven fabric.

[0053] Specifically, in order to prevent chitosan particles from flying around during production operation, a cover plate is provided on the material box, and two openings are provided on the cover plate for the non-woven fabric to pass through, so as to maintain the hygiene of the production environment, avoid personnel inhaling particles, and improve production safety.

[0054] In an optional embodiment of the present utility model, the material box 21 is detachably connected to the cover plate 211.

[0055] Specifically, the material box and the cover plate are in a detachable connection relationship, which is easy for feeding and cleaning. Here, the cover plate can be directly placed on the side wall of the material box or connected by means of screws or the like.

[0056] In an optional embodiment of the present utility model, the width of the material box 21 is greater than the length of the gauze feeding roller 11.

[0057] Specifically, the width of the material box is greater than the length of the gauze feeding roller, so as to avoid wrinkles in the non-woven fabric in the material box and affect the bonding of chitosan particles.

[0058] A specific embodiment of the chitosan non-woven fabric production system proposed in the embodiment of the present utility model is as follows:

[0059] The lower sides of the first limiting roller 22 and the second limiting roller 24 are immersed in the chitosan particle material in the material box 21. The brush roller 23 is located on the side wall of the material box 21 close to the second opening 2112, and the brush roller 23 is higher than the chitosan particles. The glue-coated non-woven fabric roll is first placed on the gauze feeding roller 11. The traction roller 12 rotating clockwise draws the glue-coated non-woven fabric to the first limiting roller 22 rotating counterclockwise, and then passes through the second limiting roller 24. After the glue-coated surface of the non-woven fabric bonds chitosan particles in the material box 21, the surface of the non-woven fabric loaded with chitosan particles passes through the surface of the brush roller 23 rotating counterclockwise, and the diagonal brush 231 brushes the chitosan particles that are not firmly bonded on the surface of the non-woven fabric back into the material box 21, and then passes through the film covering roller 32 and is compounded with the protective layer. The final product is collected into a roll at the take-up roller 33.

[0060] Among them, the protective layer on the surface of the coated non-woven fabric roll is peeled off from the surface of the coated non-woven fabric by the peeling roller 13 rotating clockwise, exposing the coated surface for chitosan loading. A detachable cover plate 211 through which the non-woven fabric can pass is provided at the top of the material box 21 to prevent chitosan particles from scattering during production operation, and at the same time, it is detachable and easy for feeding and cleaning. The first limiting roller 22 and the second limiting roller 24 can be lifted hydraulically or pneumatically, which is convenient for stretching the non-woven fabric substrate when initially loading onto the machine, and at the same time, the height of the non-woven fabric substrate interface can be adjusted according to the material volume in the material box 21, so as to fully bond the particles. The brush roller 23 is located on the inner side wall of the material box 21, close to the second opening 2112. The inclined brush 231 only contacts the non-woven fabric loaded with chitosan on the surface. The brush roller 23 rotates counterclockwise, and the inclined direction of the brush 231 is the same as the advancing direction of the non-woven fabric. The unfirmly bonded chitosan particles are brushed back into the material box 21 by the inclined brush 231, and the non-woven fabric is not stretched, napped, etc. Place the protective layer roll such as release paper or release film onto the laminating roller 32, and pass through the compound roller 31 rotating clockwise together with the chitosan non-woven fabric and finally wind up. The protective layer protects the chitosan loading surface, avoiding the direct contact between the chitosan loading surface and the roller shaft and preventing pollution.

[0061] The chitosan non-woven fabric produced by using the chitosan non-woven fabric production system of the present utility model is tested by the weighing method, and the chitosan loading amount reaches 110 g / m 2 Another chitosan non-woven fabric produced by using the existing powder spraying production equipment is tested by the same method, and the loading amount is 60 g / m 2 。

[0062] The chitosan non-woven fabric production system of the present utility model effectively improves the loading amount of chitosan particles on the non-woven fabric, improves the usability of the chitosan non-woven fabric, and avoids the dust generated by the conventional powder spraying process in the clean workshop.

[0063] The above is the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle described in the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A chitosan non-woven fabric production system, characterized in that, Comprising: A gauze feeding device, a feeding device, and a compounding device. The gauze feeding device is disposed on one side of the feeding device, and the compounding device is disposed on the other side of the feeding device; Wherein, the gauze feeding device includes: a gauze feeding roller (11), a traction roller (12) is disposed on one side of the gauze feeding roller (11), and a peeling roller (13) is disposed below the traction roller (12); The feeding device includes: a material box (21), and a first limiting roller (22) is disposed inside the material box (21); The compounding device includes: a compounding roller (31), a film laminating roller (32) is disposed below the compounding roller (31), and a winding roller (33) is disposed on one side of the compounding roller (31); Wherein, the coated non-woven fabric coil on the gauze feeding roller (11) removes the protective film through the clockwise rotating traction roller (12) and the clockwise rotating peeling roller (13) to obtain a non-woven fabric with coating; the non-woven fabric with coating is stretched by the clockwise rotating traction roller (12) to the counterclockwise rotating first limiting roller (22) inside the material box (21), and chitosan particles are bonded inside the material box (21) to obtain a non-woven fabric loaded with chitosan particles; the non-woven fabric loaded with chitosan particles passes through the clockwise rotating compounding roller (31), and is compounded with the protective layer on the clockwise rotating film laminating roller (32) to form a chitosan non-woven fabric, and the chitosan non-woven fabric is collected into a coil by the clockwise rotating winding roller (33).

2. The chitosan non-woven fabric production system according to claim 1, characterized in that, The feeding device further includes: a brush roller (23), the brush roller (23) is installed on the side wall of the material box (21), and the brush roller (23) is located above the chitosan particles inside the material box (21); Wherein, the non-woven fabric loaded with chitosan particles passes through the counterclockwise rotating brush roller (23), then passes through the clockwise rotating compounding roller (31), and is compounded with the protective layer on the clockwise rotating film laminating roller (32) to form a chitosan non-woven fabric.

3. The chitosan non-woven fabric production system according to claim 2, wherein A plurality of brushes (231) are provided on the brush roller (23), and the plurality of brushes (231) are evenly distributed on the surface of the brush roller (23).

4. The chitosan non-woven fabric production system according to claim 3, characterized in that, The included angles between the plurality of brushes (231) and the surface of the brush roller (23) are all acute angles.

5. The chitosan non-woven fabric production system according to claim 2, characterized in that, A second limiting roller (24) is disposed inside the material box (21), and the second limiting roller (24) is located between the first limiting roller (22) and the brush roller (23); Wherein, the non-woven fabric with coating is stretched by the clockwise rotating traction roller (12) into the material box (21), sequentially passes through the counterclockwise rotating first limiting roller (22) and the counterclockwise rotating second limiting roller (24), and chitosan particles are bonded inside the material box (21) to obtain a non-woven fabric loaded with chitosan particles.

6. The chitosan non-woven fabric production system according to claim 5, wherein Liftable brackets (25) are installed at the bottoms of the first limiting roller (22) and the second limiting roller (24).

7. The chitosan non-woven fabric production system according to claim 6, characterized in that, The liftable bracket (25) is a hydraulic lift bracket or a pneumatic lift bracket.

8. The chitosan non-woven fabric production system according to claim 1, wherein, A cover plate (211) is provided on the material box (21), and the cover plate (211) is provided with a first opening (2111) and a second opening (2112). Among them, the non-woven fabric with glue coating is drawn through the first opening (2111) into the material box (21) by the traction roller (12) rotating clockwise; the non-woven fabric loaded with chitosan particles passes through the second opening (2112) and is compounded with the protective layer on the compounding roller (31) and the film laminating roller (32) rotating clockwise to form a chitosan non-woven fabric.

9. The chitosan non-woven fabric production system according to claim 8, characterized in that, The material box (21) is detachably connected to the cover plate (211).

10. The chitosan non-woven fabric production system according to claim 1, wherein, The width of the material box (21) is greater than the length of the gauze feeding roller (11).

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