Preparation method of sanitary towel added with freeze-dried powder
By evenly distributing freeze-dried powder on the sanitary napkin, the problems of reduced breathability and insufficient protection of existing sanitary napkins are solved, and better skin protection effect is achieved.
Patent Information
- Application Number
- CN202411502078.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2024-12-31
AI Technical Summary
Existing sanitary napkins are less breathable during the discharge process of women, causing skin damage and bacterial growth, and lack of protective ingredients.
The preparation method of sanitary napkins with added freeze-dried powder is adopted. The lyophilized powder is evenly distributed and attached to the surface of the sanitary napkin through a special device. The lyophilized powder is uniformly covered and adhered to the sanitary napkins by using a material laying roller and auxiliary equipment.
It improves the breathability and protection of sanitary napkins, enhances the skin barrier ability, and reduces the risk of skin damage and bacterial growth.
Smart Images
Figure CN119214866A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of sanitary napkins, and in particular to a method for preparing a sanitary napkin with added freeze-dried powder. Background Art
[0002] Vitamin B5, also known as pantothenic acid, is a water-soluble vitamin that is very important for human health. Freeze-dried vitamin B5 is vitamin B5 processed by freeze-drying technology. This treatment method can maintain the stability and activity of the vitamin and keep its effect for a long time.
[0003] Existing sanitary products such as sanitary napkins, diapers, diapers and urine pads are mainly in contact with the skin. During the discharge process of women, the air permeability of sanitary napkins will be greatly reduced. At the same time, body fluids stay on the surface of sanitary napkins, which will cause certain damage to the skin in contact, such as rashes and bacterial growth. Vitamin B5 can enhance the skin barrier ability and protect the skin from damage by the external environment. Therefore, this scheme provides a method for preparing sanitary napkins with added freeze-dried powder. Summary of the invention
[0004] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the present invention is to provide a method for preparing a sanitary napkin with added freeze-dried powder, which is convenient for adding the freeze-dried powder into the sanitary napkin.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a method for preparing sanitary napkins with added freeze-dried powder, the method for preparing sanitary napkins with added freeze-dried powder is achieved by a sanitary napkin preparation device with added freeze-dried powder, and is characterized in that the sanitary napkin preparation device with added freeze-dried powder comprises a support frame, a sleeve is fixedly mounted on the support frame, a feeding pipe is arranged on one side of the sleeve, a strip-shaped opening for discharging materials is opened on the lower side of the sleeve, a material laying roller is rotatably arranged on the support frame and located at the lower side of the sleeve, a third motor for driving the material laying roller to rotate is arranged on the support frame, an arc-shaped baffle is arranged on the support frame and located on both sides of the material laying roller, and a plurality of auxiliary rollers are arranged on the support frame and located below the material laying roller; S1, placing the sanitary napkin on the assembly line and moving it through between the laying roller and the auxiliary roller; S2, then the freeze-dried powder is delivered to the sleeve through the feeding tube. Since the strip opening on the lower side of the sleeve is small, the freeze-dried powder can be flattened to a certain extent through the sleeve; S3, the flattened freeze-dried powder falls downward through the strip-shaped opening and falls onto the surface of the spreading roller; S4, the third motor starts, driving the spreading roller to rotate, so that the freeze-dried powder on the surface of the spreading roller is transferred downward, and the arc-shaped baffle limits the freeze-dried powder to prevent the freeze-dried powder from leaving the surface of the spreading roller; S5. When the freeze-dried powder on the surface of the spreading roller moves to the lower side of the spreading roller, it contacts the sanitary napkin and adheres to the surface of the sanitary napkin.
[0006] Furthermore, a rotating drum is rotatably installed in the sleeve, and a plurality of groups of stirring rods are fixedly installed on the surface of the rotating drum along the axial direction of the rotating drum. Each group of stirring rods has a plurality of stirring rods distributed circumferentially around the rotating drum, and each stirring rod is provided with a through hole along the axial direction, and the through hole is connected with the inside of the rotating drum. An auger is rotatably arranged in the rotating drum, and the outlet end of the feed pipe is located in the rotating drum. A first motor for driving the auger to rotate is arranged on the support frame, and a second motor for driving the rotating drum to rotate is arranged on the support frame, and the rotation direction of the auger is opposite to that of the rotating drum.
[0007] Furthermore, a plurality of horn rings are fixedly mounted on the inner wall of the perforation along the axis of the perforation, and the inner diameter of the horn ring on the side close to the rotating drum gradually increases.
[0008] Furthermore, a plurality of groups of strip grooves are provided on the surface of the paving roller along the axial direction of the paving roller, and each group of the strip grooves has a plurality of strip grooves distributed circumferentially around the paving roller.
[0009] Furthermore, a push plate is provided in the strip groove, and a spring is fixedly installed between the push plate and the inner wall of the strip groove for driving the push plate to retract into the strip groove. A driving member is installed on the material spreading roller for driving the push plate to extend into the strip groove. When the push plate is located at the lower side of the material spreading roller, the driving member pushes the push plate to extend out of the material spreading roller. When the push plate is not located at the lower side of the material spreading roller, the push plate retracts into the strip groove.
[0010] Furthermore, the driving member includes a connecting rod fixedly mounted on the pushing plate, the axial direction of the connecting rod is in the same radial direction as the material laying roller, a through hole for the connecting rod to pass through is opened on the material laying roller, a mounting hole is opened in the middle of the material laying roller, a shaft column is fixedly mounted on the support frame and in the mounting hole, an arc-shaped protrusion is fixedly mounted on the lower side of the shaft column, and one end of the connecting rod close to the shaft column abuts against the shaft column.
[0011] Furthermore, a roller is rotatably mounted on one end of the connecting rod close to the shaft column.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: when it is necessary to coat the surface of a sanitary napkin with freeze-dried powder, the sanitary napkin to be processed is first placed on the assembly line, and the strip-shaped sanitary napkin passes between the auxiliary roller and the spreading roller, and the sanitary napkin is brought into contact with the spreading roller through the auxiliary roller, thereby facilitating the attachment of the freeze-dried powder on the surface of the spreading roller to the sanitary napkin, and then after the sanitary napkin passes through the spreading roller, the addition of freeze-dried powder on the sanitary napkin is completed; wherein the feeding pipe transports the freeze-dried powder material to the interior of the sleeve, and delivers the freeze-dried powder to the surface of the spreading roller through the strip-shaped opening on the lower side of the sleeve, and the strip-shaped opening controls the amount of freeze-dried powder falling, and at the same time facilitates the freeze-dried powder in the sleeve to cover the strip-shaped opening, and the baffle can effectively prevent the freeze-dried powder from escaping from the surface of the spreading roller, so that the freeze-dried powder on the surface of the spreading roller can reach the sanitary napkin. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a left side cross-sectional view of the overall structure of the present invention; Figure 3 It is a front side cross-sectional view of the overall structure of the present invention; Figure 4 It is a schematic diagram of the material spreading roller of the present invention; Figure 5 It is a cross-sectional view of the material spreading roller structure of the present invention.
[0014] In the figure: 1. support frame; 2. sleeve; 21. rotating drum; 22. stirring rod; 23. perforation; 24. auger; 25. first motor; 26. second motor; 27. horn ring; 3. feeding pipe; 4. strip mouth; 5. spreading roller; 51. strip groove; 52. pushing plate; 53. spring; 54. driving member; 541. connecting rod; 542. through hole; 543. placement hole; 544. shaft column; 545. arc-shaped protrusion; 546. roller; 6. arc-shaped baffle; 7. auxiliary roller; 8. third motor. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] See also Figure 1 and Figure 2The present embodiment provides a sanitary napkin preparation device with added freeze-dried powder, including a support frame 1, a sleeve 2 is fixedly mounted on the support frame 1, a feeding pipe 3 is arranged on one side of the sleeve 2, a strip-shaped opening 4 for discharging materials is opened on the lower side of the sleeve 2, a spreading roller 5 is rotatably arranged on the support frame 1 and located at the lower side of the sleeve 2, an arc-shaped baffle 6 is arranged on the support frame 1 and located on both sides of the spreading roller 5, and a plurality of auxiliary rollers 7 are arranged on the support frame 1 and located below the spreading roller 5.
[0017] When the surface of the sanitary napkin needs to be coated with freeze-dried powder, the sanitary napkin to be processed is first placed on the production line, and the strip-shaped sanitary napkin passes between the auxiliary roller 7 and the material spreading roller 5. The sanitary napkin is brought into contact with the material spreading roller 5 through the auxiliary roller 7, so that the freeze-dried powder on the surface of the material spreading roller 5 is attached to the sanitary napkin, and then after the sanitary napkin passes through the material spreading roller 5, the addition of freeze-dried powder on the sanitary napkin is completed; The feeding tube 3 transports the freeze-dried powder material to the interior of the sleeve 2, and delivers the freeze-dried powder to the surface of the spreading roller 5 through the strip opening 4 on the lower side of the sleeve 2. The strip opening 4 controls the falling amount of the freeze-dried powder. The baffle can effectively prevent the freeze-dried powder from escaping from the surface of the spreading roller 5, making it easier for the freeze-dried powder on the surface of the spreading roller 5 to reach the sanitary napkin.
[0018] See also Figure 2 and Figure 3 In order to facilitate the uniform distribution of the freeze-dried powder on the spreading roller 5, a rotating drum 21 is rotatably installed in the sleeve 2, and a plurality of groups of stirring rods 22 are fixedly installed on the surface of the rotating drum 21 along the axial direction of the rotating drum 21. Each group of stirring rods 22 has a plurality of stirring rods distributed circumferentially around the rotating drum 21, and each stirring rod 22 is provided with a through hole 23 along the axial direction, and the through hole 23 is connected with the inside of the rotating drum 21. An auger 24 is rotatably arranged in the rotating drum 21, and the outlet end of the feeding pipe 3 is located in the rotating drum 21. A first motor 25 for driving the auger 24 to rotate is arranged on the support frame 1, and a second motor 26 for driving the rotating drum 21 to rotate is arranged on the support frame 1, and the auger 24 rotates in the opposite direction to the rotating drum 21.
[0019] When the freeze-dried powder needs to be evenly dispersed on the spreading roller 5, the freeze-dried powder is first fed into the drum 21 through the feeding pipe 3. At this time, the first motor 25 drives the auger 24 in the drum 21 to rotate, and the freeze-dried powder fed into the drum 21 is transported from one end of the drum 21 to the other end through the auger 24, so that the freeze-dried powder is distributed throughout the entire drum 21, thereby spreading the freeze-dried powder flat. At the same time, the second motor 26 drives the drum 21 to rotate, so that the freeze-dried powder entering the drum 21 moves in the drum 21, and the moving freeze-dried powder will make the freeze-dried powder enter the perforation 23 in the stirring rod 22, and thus enter the sleeve 2. Because there are multiple stirring rods 22, the freeze-dried powder falling into the sleeve 2 will be evenly distributed along the axial direction of the sleeve 2, that is, the freeze-dried powder is evenly spread on the bottom of the sleeve 2, and the freeze-dried powder falling from the sleeve 2 onto the spreading roller 5 will also fall evenly on the surface of the spreading roller 5 along the axial direction of the spreading roller 5. The rotation direction of the auger 24 is opposite to that of the drum 21, which speeds up the tiling speed of the freeze-dried powder in the drum 21 and moves faster from one end of the drum 21 to the other end of the drum 21. The rotation of the drum 21 causes the freeze-dried powder that falls into the stirring rod 22 to fall into the sleeve 2 faster under the action of centrifugal force, and reduces the accumulation of the freeze-dried powder in the stirring rod 22. At the same time, the rotation of the drum 21 will cause the freeze-dried powder in the drum 21 to move quickly, reducing the accumulation of the freeze-dried powder in the drum 21. The rotation of the drum 21 drives the stirring rod 22 to rotate, and then rotates inside the sleeve 2, so that the rotating stirring rod 22 will stir the freeze-dried powder in the sleeve 2, making it convenient for the freeze-dried powder in the sleeve 2 to fall downward quickly and reduce the accumulation of freeze-dried powder at the strip-shaped mouth 4. Through the above operation, the freeze-dried powder delivered by the feeding pipe 3 is evenly spread on the spreading roller 5, and the spreading roller 5 evenly attaches the freeze-dried powder to the sanitary napkin.
[0020] As the drum 21 rotates, the stirring rod 22 will rotate to the drum 21. When the drum 21 rotates at a slow speed, the centrifugal force is less than the gravity. Under the action of gravity, the freeze-dried powder may fall into the drum 21 through the perforation 23, thereby reducing the efficiency of the stirring rod 22 in transporting the freeze-dried powder to the outside. To solve the above technical problems. A plurality of horn rings 27 are fixedly installed on the inner wall of the perforation 23 along the axis of the perforation 23, and the inner diameter of the horn ring 27 on the side close to the drum 21 gradually increases.
[0021] By arranging a horn ring 27 on the inner wall of the perforation 23, when the stirring rod 22 moves to the upper side of the rotating drum 21, the freeze-dried powder will move downward along the inner wall of the perforation 23 under the action of gravity, and the freeze-dried powder moving downward will be blocked by the horn ring 27, so that most of it stays inside the stirring rod 22. When the stirring rod 22 rotates to the lower side of the rotating drum 21, the freeze-dried powder in the stirring rod 22 will move downward again and fall into the sleeve 2.
[0022] See also Figure 2 and Figure 3 Because the surface of the material roller 5 is smooth, the amount of freeze-dried powder attached to the surface of the material roller 5 is small, and the above technical problems are not solved. The surface of the material roller 5 is provided with multiple groups of strip grooves 51 along the axial direction of the material roller 5, and each group of strip grooves 51 has multiple strip grooves distributed around the material roller 5.
[0023] The freeze-dried powder falling onto the surface of the spreading roller 5 will fall into the strip groove 51, and will be temporarily stored in the strip groove 51. When the strip groove 51 rotates to the lower side of the spreading roller 5, the freeze-dried powder in the strip groove 51 will fall downward to the surface of the sanitary napkin under the action of gravity.
[0024] See also Figure 4 and Figure 5, in order to facilitate the faster shedding of the freeze-dried powder in the strip groove 51. A push plate 52 is arranged in the strip groove 51, and a spring 53 is fixedly installed between the push plate 52 and the inner wall of the strip groove 51 for driving the push plate 52 to retract into the strip groove 51. A driving member 54 is installed on the material spreading roller 5 for driving the push plate 52 to extend into the strip groove 51. When the push plate 52 is located at the lower side of the material spreading roller 5, the driving member 54 pushes the push plate 52 to extend out of the material spreading roller 5. When the push plate 52 is not located at the lower side of the material spreading roller 5, the push plate 52 retracts in the strip groove 51.
[0025] When the strip groove 51 moves to the upper side of the spreading roller 5, the push plate 52 shrinks inside the strip groove 51 under the action of the spring 53. At this time, the freeze-dried powder will fall into the strip groove 51 and be stored. As the spreading roller 5 rotates, the strip groove 51 carrying the freeze-dried powder moves to the lower side of the spreading roller 5. The driving member 54 will push the push plate 52 to move, so that the push plate 52 will extend out of the strip groove 51, thereby pushing out all the freeze-dried powder in the strip groove 51, so that the freeze-dried powder adheres to the surface of the sanitary napkin. At the same time, the push plate 52 extends out of the strip groove 51, and the freeze-dried powder adhered to the surface of the sanitary napkin will be compacted, so that the freeze-dried powder has stronger adhesion and does not easily float away.
[0026] See also Figure 4 and Figure 5 The driving member 54 includes a connecting rod 541 fixedly mounted on the pushing plate 52, the connecting rod 541 is axially in the same radial direction as the material spreading roller 5, a through hole 542 is provided on the material spreading roller 5 for the connecting rod 541 to pass through, a placement hole 543 is provided in the middle of the material spreading roller 5, a shaft column 544 is fixedly mounted on the support frame 1 and located in the placement hole 543, an arc-shaped protrusion 545 is fixedly mounted on the lower side of the shaft column 544, and one end of the connecting rod 541 close to the shaft column 544 abuts against the shaft column 544.
[0027] When the pushing plate is located on the upper side of the material spreading roller 5, the connecting rod 541 connected to the pushing plate 52 is located on the upper side of the shaft column 544, so that the pushing plate contracts in the strip groove 51. As the material spreading roller 5 rotates, the pushing plate and the connecting rod 541 are driven to rotate together, and the end of the connecting rod 541 away from the pushing plate 52 moves on the shaft column 544. When the pushing plate 52 gradually moves to the lower side of the material spreading roller 5, the connecting rod 541 also gradually moves to the lower side of the shaft column 544. On the arc-shaped protrusion 545, as the spreading roller 5 continues to rotate, the connecting rod 541 will slide on the arc-shaped protrusion 545. Through the push of the arc-shaped protrusion 545, the connecting rod 541 will push the pushing plate 52 to overcome the force of the spring 53 and extend out of the strip groove 51, thereby completing the pushing of the freeze-dried powder. When the connecting rod 541 passes over the arc-shaped protrusion 545, under the action of the spring 53, the pushing plate 52 will be reset, and the connecting rod 541 will also contact the surface of the shaft column 544 again.
[0028] In order to reduce the wear of the end of the connecting rod 541, a roller 546 is rotatably mounted on one end of the connecting rod 541 close to the shaft column 544. The roller 546 converts the sliding friction between the connecting rod 541, the shaft column 544 and the arc-shaped protrusion 545 into rolling friction between the roller 546, the shaft column 544 and the arc-shaped protrusion 545, thereby reducing the friction force and further reducing the wear.
[0029] A method for preparing a sanitary napkin with added freeze-dried powder, which is achieved by using a sanitary napkin preparation device with added freeze-dried powder; S1, placing the sanitary napkin on the assembly line and moving it, and the sanitary napkin passes between the laying roller 5 and the auxiliary roller 7; S2, then the freeze-dried powder is delivered to the sleeve 2 through the feeding tube 3. Since the strip-shaped opening 4 on the lower side of the sleeve 2 is small, the freeze-dried powder can be flattened to a certain extent through the sleeve 2; S3, the flattened freeze-dried powder falls downward through the strip-shaped opening 4 and falls onto the surface of the spreading roller 5; S4, the third motor 8 is started, driving the spreading roller 5 to rotate, so that the freeze-dried powder on the surface of the spreading roller 5 is transferred downward, and the arc-shaped baffle 6 limits the freeze-dried powder to prevent the freeze-dried powder from leaving the surface of the spreading roller 5; S5. When the freeze-dried powder on the surface of the spreading roller 5 moves to the lower side of the spreading roller 5, it contacts the sanitary napkin and adheres to the surface of the sanitary napkin.
[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.
Claims
1. A method for preparing a sanitary napkin with added freeze-dried powder, wherein the method is implemented by a sanitary napkin preparation device with added freeze-dried powder, and is characterized in that: The sanitary napkin preparation device with added freeze-dried powder comprises a support frame (1), a sleeve (2) is fixedly mounted on the support frame (1), a feeding pipe (3) is arranged on one side of the sleeve (2), a strip-shaped opening (4) for discharging materials is opened on the lower side of the sleeve (2), a material spreading roller (5) is rotatably arranged on the support frame (1) and located below the sleeve (2), a third motor (8) is arranged on the support frame (1) for driving the material spreading roller (5) to rotate, an arc-shaped baffle (6) is arranged on the support frame (1) and located on both sides of the material spreading roller (5), and a plurality of auxiliary rollers (7) are arranged on the support frame (1) and located below the material spreading roller (5); S1, placing a sanitary napkin on the production line and moving the sanitary napkin through between the spreading roller (5) and the auxiliary roller (7); S2, then the freeze-dried powder is delivered to the sleeve (2) through the delivery tube (3). Since the strip-shaped opening (4) on the lower side of the sleeve (2) is relatively small, the freeze-dried powder can be flattened to a certain extent through the sleeve (2); S3, the flattened freeze-dried powder falls downward through the strip-shaped opening (4) and falls onto the surface of the spreading roller (5); S4, the third motor (8) is started, driving the spreading roller (5) to rotate, so that the freeze-dried powder on the surface of the spreading roller (5) is transferred downward, and the arc-shaped baffle (6) limits the freeze-dried powder to prevent the freeze-dried powder from falling off the surface of the spreading roller (5); S5. When the freeze-dried powder on the surface of the spreading roller (5) moves to the lower side of the spreading roller (5), it comes into contact with the sanitary napkin and adheres to the surface of the sanitary napkin.
2. The method for preparing sanitary napkins with added freeze-dried powder according to claim 1, characterized in that: A rotating drum (21) is rotatably mounted in the sleeve (2). A plurality of groups of stirring rods (22) are fixedly mounted on the surface of the rotating drum (21) along the axial direction of the rotating drum (21). Each group of stirring rods (22) has a plurality of stirring rods (22) which are circumferentially distributed around the rotating drum (21). Each stirring rod (22) is provided with a through hole (23) along the axial direction. The through hole (23) is communicated with the interior of the rotating drum (21). An auger (24) is rotatably mounted in the rotating drum (21). The outlet end of the feed pipe (3) is located in the rotating drum (21). A first motor (25) for driving the auger (24) to rotate is disposed on the support frame (1). A second motor (26) for driving the rotating drum (21) to rotate is disposed on the support frame (1). The auger (24) rotates in opposite directions to the rotating drum (21).
3. The method for preparing sanitary napkins with added freeze-dried powder according to claim 2, characterized in that: A plurality of horn rings (27) are fixedly mounted on the inner wall of the through hole (23) along the axis of the through hole (23), and the inner diameter of the horn ring (27) gradually increases on a side close to the rotating drum (21).
4. The method for preparing sanitary napkins with added freeze-dried powder according to claim 1, characterized in that: The surface of the material spreading roller (5) is provided with a plurality of groups of strip grooves (51) along the axial direction of the material spreading roller (5), and each group of the strip grooves (51) has a plurality of strip grooves (51) distributed circumferentially around the material spreading roller (5).
5. The method for preparing sanitary napkins with added freeze-dried powder according to claim 4, characterized in that: A push plate (52) is arranged in the strip groove (51), and a spring (53) is fixedly installed between the push plate (52) and the inner wall of the strip groove (51) for driving the push plate (52) to retract into the strip groove (51). A driving member (54) is installed on the material spreading roller (5) for driving the push plate (52) to extend out of the strip groove (51). When the push plate (52) is located at the lower side of the material spreading roller (5), the driving member (54) pushes the push plate (52) to extend out of the material spreading roller (5); when the push plate (52) is not located at the lower side of the material spreading roller (5), the push plate (52) retracts in the strip groove (51).
6. The method for preparing sanitary napkins with added freeze-dried powder according to claim 5, characterized in that: The driving member (54) comprises a connecting rod (541) fixedly mounted on the pushing plate (52); the connecting rod (541) is axially aligned with the radial direction of the material spreading roller (5); a through hole (542) for the connecting rod (541) to pass through is provided on the material spreading roller (5); a placement hole (543) is provided in the middle of the material spreading roller (5); a shaft column (544) is fixedly mounted on the support frame (1) and located in the placement hole (543); an arc-shaped protrusion (545) is fixedly mounted on the lower side of the shaft column (544); and one end of the connecting rod (541) close to the shaft column (544) abuts against the shaft column (544).
7. The method for preparing sanitary napkins with added freeze-dried powder according to claim 6, characterized in that: A roller (546) is rotatably mounted on one end of the connecting rod (541) close to the shaft column (544).