A method for preparing cellulose-based composite antibacterial material

Abstract

The present invention relates to the technical field of preparation of antibacterial materials, and more specifically, to a method for preparing a cellulose-based composite antibacterial material. The antibacterial pulp board produced by the present invention can be quickly impregnated and decomposed with high efficiency. The preparation method comprises the following steps: a: after fully soaking the wood, start the pulper to crush the wood into wood pulp; b: after dehydrating the wood pulp, the semi-formed wood pulp board is placed on a door-shaped pallet; c: the wood pulp board is pressed and formed by rolling with two rollers, and multiple pins on both sides are inserted into the interior of the wood pulp board; d: the composite antibacterial agent is injected into the interior of the wood pulp board through the pins, and the antibacterial pulp board is obtained after drying.

Description

Technical Field

[0001] The invention relates to the technical field of preparation of antibacterial materials, and more particularly to a method for preparing a cellulose-based composite antibacterial material. Background Art

[0002] Pulp board is a kind of pulp, which is a thick cardboard formed after pulp is dehydrated and pressed. It is mainly for easy transportation. Applying a small amount of antibacterial agent on the pulp board can prevent the pulp board from being affected by the transportation environment and causing mold and deterioration during transportation. The pulp board needs to be broken into pulp when used, but the existing processed pulp board is a whole piece of pulp board, which is not easy to quickly penetrate and dissolve during soaking, thus affecting the processing efficiency. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a method for preparing a cellulose-based composite antibacterial material, which has the beneficial effect that the antibacterial pulp board produced by the present invention can be quickly impregnated and decomposed with high efficiency.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A preparation system of a cellulose-based composite antibacterial material, comprising a rectangular frame with a bottom chute at the lower end, a door-shaped support plate inserted in the bottom chute, and two rollers symmetrically arranged on the door-shaped support plate at the outer end of the rectangular frame;

[0006] The rolling part comprises a rolling cylinder installed on a bottom frame and a top frame. Both the bottom frame and the top frame are installed on a door-shaped support plate. The outer circumferential surface of the rolling cylinder is provided with a convex surface and a concave surface.

[0007] The outer circumferential surface of the rolling cylinder is evenly distributed with staggered convex surfaces and concave surfaces, and any adjacent convex surfaces and concave surfaces have a natural transition.

[0008] A method for preparing a cellulose-based composite antibacterial material, comprising the following steps:

[0009] a: After fully soaking the wood, start the pulper to break the wood into pulp;

[0010] b: Put the wood pulp board in a semi-set state after the wood pulp is dehydrated onto the door-shaped pallet;

[0011] c: The wood pulp board is pressed and shaped by two rollers, and multiple pins on both sides are inserted into the interior of the wood pulp board;

[0012] d: Inject the composite antibacterial agent into the wood pulp board through the plugging column, and obtain the antibacterial pulp board after drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0014] Figure 1 A flow chart of a method for preparing a cellulose-based composite antibacterial material;

[0015] Figure 2 and Figure 3 It is a structural schematic diagram of the preparation system of cellulose-based composite antibacterial materials;

[0016] Figure 4 It is a schematic diagram of the structure of two rolling parts;

[0017] Figure 5 It is a structural schematic diagram of a roller press cylinder;

[0018] Figure 6 It is a structural schematic diagram of the star frame and the top plate;

[0019] Figure 7 It is a schematic diagram of the split structure of the shaft sleeve and the hinge plate;

[0020] Figure 8 It is a schematic diagram of the structure of the top plate and the plug column;

[0021] Fig. 9 It is a schematic diagram of the structure of a rectangular frame and an intubation tube;

[0022] Fig.10 It is a structural diagram of the bottom frame and the top frame. DETAILED DESCRIPTION

[0023] like Figures 4 to 5 As shown:

[0024] The wood pulp board in a semi-fixed state after the wood pulp is dehydrated is placed on the door-type support plate 103 in the rectangular frame 101. An electric telescopic rod I is arranged between the door-type support plate 103 and the rectangular frame 101. Flanges are welded at both ends of the electric telescopic rod I. The electric telescopic rod I is fixedly connected to the door-type support plate 103 and the rectangular frame 101 through flanges and screws. When the electric telescopic rod I is started, the two roller pressing cylinders 201 on the bottom frame 104 and the top frame 105 are driven to move toward the direction close to the rectangular frame 101 through the door-type support plate 103. Since the wood pulp board is framed by the rectangular frame 101, when the door-type support plate 103 moves at the lower end of the wood pulp board, it will not bring The pulp board is moved, and the two rollers 201 are controlled to rotate. When the two rollers 201 move toward the pulp board, the lower end of the semi-formed pulp board will leak out because the door-shaped support plate 103 is door-shaped. When the two rollers 201 move into the rectangular frame 101, the upper and lower rollers 201 can contact the upper and lower end surfaces of the pulp board at the same time, and roll the upper and lower end surfaces of the semi-formed pulp board to further squeeze out the liquid in the pulp board and press the pulp board into shape; the two rollers 201 can be set as electric heating rollers to further squeeze the pulp board and dry and shape the pulp board at the same time;

[0025] Since the outer circumferential surface of the roller 201 is provided with a convex surface and a concave surface, when the roller 201 presses the wood pulp board, the concave surface and the convex surface are also pressed on the wood pulp board, so that when the formed pulp board is soaked and loosened, the concave surface on the top surface of the pulp board can store liquid, thereby promoting the pulp board to be soaked more quickly, and the convex surface of the wood pulp board also increases the contact area with the liquid, which also promotes the pulp board to be soaked more quickly; the liquid stored in the concave surface generates a slight pressure, which also improves the efficiency of the convex surfaces on both sides of the concave surface contacting with the liquid and being soaked;

[0026] After the upper and lower rollers 201 roll the wood pulp board, the convex surface and the concave surface on the upper and lower end surfaces of the wood pulp board correspond to each other, and the thickness of the processed wood pulp board at the concave surface is thinner. Therefore, during soaking, the concave surface is soaked before the convex surface, so that the concave surface at the soaked position is first loosened, thereby dividing the wood pulp board into two independent pieces for separate soaking, thereby improving the soaking and loosening efficiency of the pulp board, and enabling the pulp board to be quickly soaked and loosened;

[0027] Secondly, before soaking, the pulp board can also be broken along the thinner concave surface of the pulp board to divide the pulp board into small pieces, and the required amount of pulp board can be soaked according to the needs;

[0028] The same applies to pulpboard.

[0029] like Figure 5 As shown:

[0030] The multiple convex surfaces and the multiple concave surfaces roll the end surfaces of the pulp board in sequence, so that the end surfaces on both sides of the processed pulp board are wavy, and the thickness of the pulp board is a shape of cyclic transition from thick to thin. During soaking, the multiple concave surfaces are firstly loosened, so that the wood pulp board is divided into multiple small pieces for separate soaking. The pulp board divided into multiple small pieces increases the contact area with the liquid. Compared with soaking the whole pulp board as a whole, the pulp board divided into multiple small pieces for separate soaking improves the soaking and loosening efficiency of the carpenter board.

[0031] Secondly, there are multiple locations on the pulp board where the concave surface is thinner, and the pulp board can also be broken into multiple small pieces along the concave surface, and the pulp board with the required amount of soaking can be further selected according to needs.

[0032] like Figures 5 to 6 As shown:

[0033] The rolling part also includes a star frame 202, a top plate 207 and a notch 208. The two ends of the rolling cylinder 201 are respectively fixedly connected to a star frame 202 by screws, and a top plate 207 is slidably connected between the two star frames 202. The rolling cylinder 201 is provided with a notch 208, and the top plate 207 is inserted into the notch 208.

[0034] Under normal conditions, the outer end surface of the top plate 207 is coplanar with the outer end surface of the rolling cylinder 201. When the top plate 207 slides on the two star frames 202 and extends out of the outer end surface of the rolling cylinder 201, the top plate 207 presses grooves on the surface of the pulp board under the rolling drive of the rolling cylinder 201 on the pulp board. The grooves further increase the area of ​​the pulp board in contact with water when it is soaked. During soaking, the solution can be accommodated in the grooves, thereby improving the soaking efficiency of the pulp board.

[0035] like Figure 5 As shown:

[0036] The notch 208 is arranged on the concave surface of the roller cylinder 201; the top plate 207 is inserted at the concave surface position of the roller cylinder 201, and the outer end surface of the top plate 207 is coplanar with the concave surface on the outer end surface of the roller cylinder 201 under normal conditions, so that a smooth wave surface can be processed on the pulp board. When the top plate 207 slides on the two star frames 202, the top plate 207 extends out of the concave surface on the outer end surface of the roller cylinder 201;

[0037] The concave surface on the rolling cylinder 201 corresponds to the convex surface on the pulp board. Since the convex surface of the wood pulp board is thicker, it is not easy to quickly soak it compared to the concave surface. Therefore, when rolling, the rolling cylinder 201 drives the top plate 207 protruding from the rolling cylinder 201 to be inserted into the thickest position on the pulp board. Therefore, the upper and lower ends of the thickest position of the formed pulp board are respectively provided with grooves corresponding to the top plate 207. Therefore, when the pulp board is soaked, liquid can also enter the grooves, thereby improving the efficiency of soaking the thicker parts of the pulp board, so that even the pulp board divided into small pieces can be quickly soaked.

[0038] like Figures 2 to 3 As shown:

[0039] There are a plurality of slots 208 , each of which has a top plate 207 inserted therein. The top plates 207 are all slidably connected between the two star frames 202 .

[0040] A top plate 207 is inserted into each of the multiple concave surfaces on the roller cylinder 201, so that grooves can be distributed on each convex surface of the processed pulp board, so that each pulp board broken into small pieces can be quickly soaked and loosened.

[0041] like Figures 6 to 7 As shown:

[0042] The rolling part also includes a sleeve 203, an articulated disk 205 and an articulated arm 206. The outer ends of the two star frames 202 are respectively welded to a sleeve 203, and the two sleeves 203 are respectively connected to an articulated disk 205 slidably along the axial direction of the sleeve 203. The two ends of the multiple top plates 207 are respectively hinged to one end of an articulated arm 206, and the other end of the articulated arm 206 is hingedly connected to the articulated disk 205. The top plate 207 is hinged to the two articulated disks 205 through the articulated arms 206 on both sides.

[0043] When the two hinged plates 205 slide away from each other, the multiple hinged arms 206 on both sides simultaneously drive the multiple top plates 207 to slide, thereby driving the multiple top plates 207 to be stored in the rolling cylinder 201, or driving the multiple top plates 207 to protrude from the surface of the rolling cylinder 201.

[0044] like Fig. 9 As shown:

[0045] A preparation system for a cellulose-based composite antibacterial material also includes a plug 107. A plurality of plugs 107 are inserted into the two ends of the rectangular frame 101. When a semi-formed wood pulp board is placed on a door-shaped support plate 103 in the rectangular frame 101, the plurality of plugs 107 on both sides are controlled to move toward each other and inserted into the two ends of the wood pulp board, thereby inserting a plurality of column holes in the middle of the wood pulp board. When the wood pulp board is soaked, liquid can enter the column holes, so that the middle of the wood pulp board can be in contact with the liquid at the same time as the outside for soaking treatment, thereby loosening the pulp board from the middle and improving the soaking efficiency of the pulp board.

[0046] like Figure 8 As shown:

[0047] The rolling part also includes a guide rod 305, a connecting plate 306 and a plug 307. A plurality of plugs 307 are inserted into the top plate 207. The plurality of plugs 307 are fixedly connected to the connecting plate 306. The connecting plate 306 is slidably connected to the guide rod 305. The guide rod 305 is welded to one end of the top plate 207. A locking screw is threadedly connected to the connecting plate 306.

[0048] Under normal conditions, the outer ends of the plurality of plug posts 307 are coplanar with the top plate 207. When the sliding connecting plate 306 drives the plurality of plug posts 307 to protrude from the surface of the top plate 207, the locking screws are tightened to fix the positions of the plug posts 307. When the rolling cylinder 201 drives the top plate 207 to roll, the top plate 207 contacts the pulp board and drives the protruding plug posts 307 to be inserted into the pulp board, and inserts holes on the pulp board. When the plug posts 307 are inserted into the pulp board, they correspond to the insert tubes 107, so that the holes on the pulp board are connected to the column holes, thereby making the interior of the thicker position of the processed pulp board in a hollow state, thereby further increasing the contact area between the core of the pulp board and the liquid, and further increasing the ability of the thickest position of the pulp board to be quickly soaked and released.

[0049] like Fig. 9 As shown:

[0050] A preparation system of a cellulose-based composite antibacterial material, further comprising a connecting tube 106 and a screw rod 108, wherein the two ends of the rectangular frame 101 are rotatably connected to a screw rod 108, and the two screw rods 108 are respectively threadedly connected to a connecting tube 106, and a plurality of inserting tubes 107 on both sides are respectively fixedly connected and communicated with the connecting tubes 106 on the corresponding sides;

[0051] Rotating the two screw rods 108 drives the two connecting tubes 106 to move closer to or farther from each other, thereby driving the multiple inserting tubes 107 on both sides to insert into or pull out of the paddle board;

[0052] A water inlet pipe with a pump is provided on the connecting pipe 106. When the insert pipe 107 is in the pulp board and the insert column 307 has been inserted into the plug hole on the pulp board, the antibacterial agent is connected to the water inlet pipe, so that the antibacterial agent is sprayed out from the multiple insert pipes 107 through the connecting pipe 106, and the sprayed antibacterial agent flows into the column hole and the plug hole and then flows to the surface of the pulp board. Then, the insert pipes 107 on both sides are controlled to be slowly withdrawn, so that the antibacterial agent flows through the entire column hole, the plug hole and the surface of the pulp board, so that the entire surface of the pulp board is coated with the antibacterial agent, so that the pulp board without antibacterial properties is modified to have antibacterial properties, so that the pulp board will not be affected by the transportation environment during transportation and cause the pulp board to mold and deteriorate, thereby ensuring the quality of the pulp board.

[0053] like Figure 7 As shown:

[0054] The preparation system of the cellulose-based composite antibacterial material also includes a hollow shaft 204, the outer end of the sleeve 203 is connected to the hollow shaft 204 through a coupling, the roller cylinder 201 is rotatably connected to the door-type pallet 103 through the hollow shafts 204 at both ends, and the roller cylinder 201 rotates on the door-type pallet 103 through the two hollow shafts 204.

[0055] like Fig.10 As shown:

[0056] A preparation system of a cellulose-based composite antibacterial material, wherein the lower end of the door-shaped support plate 103 is welded to two bottom frames 104, the top frame 105 is plugged into the two bottom frames 104, an electric telescopic rod II is arranged between the top frame 105 and the bottom frame 104, flanges are welded at both ends of the electric telescopic rod II, the electric telescopic rod II is fixedly connected to the top frame 105 and the bottom frame 104 through flanges and screws, two hollow shafts 204 on one rolling cylinder 201 are rotatably connected to the top frame 105 with limited axis, and two hollow shafts 204 on another rolling cylinder 201 are rotatably connected between the two bottom frames 104 with limited axis;

[0057] One of the hollow shafts 204 is keyed to gear I, gear I is meshed and connected with gear II, gear II is keyed to the output shaft of the reduction motor, the reduction motor with a motor seat is fixed to the top frame 105 by bolts, the reduction motor is started to drive the two roller pressing cylinders 201 to rotate through the meshing and transmission connection of gear I and gear II, when the electric telescopic rod I is started, it drives the two roller pressing cylinders 201 to move toward the rectangular frame 101 through the top frame 105 and the bottom frame 104, and then the pulp board is rolled and shaped;

[0058] When both rolling cylinders 201 are located in the rectangular frame 101, the electric telescopic rod II is started to drive the top frame 105 to slide up and down on the bottom frame 104, thereby changing the distance between the two rolling cylinders 201, so as to roll the pulp sheets with different thicknesses.

[0059] like Figure 7 As shown:

[0060] The preparation system of the cellulose-based composite antibacterial material also includes a square groove 301, a square plate 302, a fixed plate 303 and a stud 304. The shaft sleeve 203 is provided with a square groove 301, the square plate 302 is slidably connected in the square groove 301, the square plate 302 is fixedly connected in the hinge disk 205 by screws, the square plate 302 is upper-limited and rotatably connected to the stud 304, the stud 304 is threadedly connected to the fixed plate 303, and the fixed plate 303 is fixed to the hollow shaft 204 by screws.

[0061] Rotating the stud 304 drives the hinge plate 205 to slide on the sleeve 203, thereby changing the distance between the two hinge plates 205, and then driving the multiple top plates 207 to extend or retract; the cooperation between the square plate 302 and the square groove 301 enables the hinge plate 205 to rotate synchronously when the stud 304 is rotated, and at the same time does not interfere with the hinge plate 205 sliding on the square groove 301.

[0062] A method for preparing a cellulose-based composite antibacterial material, comprising the following steps:

[0063] a: After fully soaking the wood, start the pulper to break the wood into pulp;

[0064] b: After the wood pulp is dehydrated and is in a semi-set state, the wood pulp board is placed on the door-shaped pallet 103;

[0065] c: The wood pulp board is pressed and shaped by two rolling cylinders 201, and multiple plugs 307 on both sides are inserted into the interior of the wood pulp board;

[0066] d: Inject the composite antibacterial agent into the wood pulp board through the plug 307, and obtain the antibacterial pulp board after drying.

Claims

1. A preparation system for a cellulose-based composite antibacterial material, Features: It comprises a rectangular frame (101) with a bottom slide groove (102) at the lower end, a door-shaped support plate (103) is inserted in the bottom slide groove (102), and two roller pressing parts are symmetrically arranged on the outer end of the rectangular frame (101) on the door-shaped support plate (103); The rolling component comprises a rolling cylinder (201) mounted on a bottom frame (104) and a top frame (105); the bottom frame (104) and the top frame (105) are both mounted on a door-shaped support plate (103); and the outer circumferential surface of the rolling cylinder (201) is provided with a convex surface and a concave surface; The outer circumferential surface of the rolling cylinder (201) is evenly distributed with staggered convex surfaces and concave surfaces, and any adjacent convex surfaces and concave surfaces have a natural transition; The two ends of the rolling cylinder (201) are respectively fixedly connected to a star frame (202), a top plate (207) is slidably connected between the two star frames (202), a notch (208) is provided on the rolling cylinder (201), and the top plate (207) is inserted into the notch (208); The notch (208) is arranged on a concave surface of the rolling cylinder (201); The slots (208) are provided in plurality, each of the slots (208) has a top plate (207) inserted therein, and the top plates (207) are all slidably connected between the two star frames (202); The outer ends of the two star frames (202) are respectively welded to a shaft sleeve (203), and the two shaft sleeves (203) are respectively slidably connected to a hinge plate (205), and the two ends of the plurality of top plates (207) are respectively hinged to a hinge arm (206), and the top plates (207) are hinged to the two hinge plates (205) through the hinge arms (206) on both sides; A plurality of inserting tubes (107) are respectively inserted into both ends of the rectangular frame (101); A plurality of plug posts (307) are inserted into the top plate (207), and the plurality of plug posts (307) are all fixedly connected to a connecting plate (306). The connecting plate (306) is slidably connected to a guide rod (305), and the guide rod (305) is fixedly connected to one end of the top plate (207).

2. A system for preparing a cellulose-based composite antibacterial material according to claim 1, Features: The two ends of the rectangular frame (101) are rotatably connected to a screw rod (108), and the two screw rods (108) are respectively threadedly connected to a connecting pipe (106), and the multiple inserting pipes (107) on the two sides are respectively fixedly connected and communicated with the connecting pipes (106) on the corresponding sides.

3. A method for preparing a cellulose-based composite antibacterial material using the system for preparing a cellulose-based composite antibacterial material according to claim 2, Features: The Method The following steps are involved: a: After fully soaking the wood, start the pulper to break the wood into pulp; b: placing the wood pulp board in a semi-set state after the wood pulp is dehydrated onto the door-shaped support plate (103); c: The wood pulp board is pressed and shaped by two rolling cylinders (201), and a plurality of plugging posts (307) on both sides are inserted into the interior of the wood pulp board; d: injecting the composite antibacterial agent into the interior of the wood pulp board through the plug (307), and obtaining the antibacterial pulp board after drying.

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