Conveniently replaceable sanitary cotton core forming die wheel

Abstract

The utility model discloses a sanitary cotton core forming die wheel convenient to dismount and replace, including installation support, the upper portion of installation support left side is rotated and is connected with the die wheel body through the rotating shaft, and the outside of die wheel body is respectively equipped with the forming ring and stainless steel screen, still include: the middle position of die wheel body inside is equipped with negative pressure chamber, and the middle part equal angle of die wheel body outside is equipped with adsorption hole, the upper portion fixed connection of die wheel body left side has the suction pipe. This sanitary cotton core forming die wheel convenient to dismount and replace, when need to dismount and replace stainless steel screen, pull positioning rod and make it with the positioning groove separation to remove the disc limiting, rotate the disc through the rotating rod and drive driving gear and the block, bevel gear ring and bevel gear rotate, make four limit rods move to bevel gear ring center and separate from the limit slot, remove the forming ring fixed, thereby quickly remove the forming ring and stainless steel screen and complete the replacement, improve maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sanitary pad processing technology, specifically a sanitary napkin core forming mold wheel that is easy to disassemble and replace. Background Technology

[0002] The sanitary napkin core forming mold wheel is one of the core components in sanitary napkin production equipment. It is mainly used to process loose absorbent materials (such as fluff pulp, superabsorbent polymer, etc.) into sanitary napkin cores (i.e., the absorbent body of the sanitary napkin) with specific shapes, thicknesses, and structures through physical extrusion, adsorption, and shaping. However, a drawback is that fixing the forming rings to the mold wheel is cumbersome and slow. To address these shortcomings, existing technology (Chinese patent application number: 202120392731.0, authorized announcement date: 2021-11-26) discloses a mold wheel with a quickly detachable template. The central shaft drives the mold wheel to rotate, and suction is provided through the air distribution plate and suction pipe inside the mold wheel, adsorbing fluff onto the template formed by the stainless steel mesh and two forming rings to form strip-shaped absorbent cotton cores. Furthermore, when replacing the stainless steel mesh and two forming rings, the stainless steel mesh and two forming rings can be easily removed by rotating each handle and removing the L-shaped flaps. This is the entire working process of the mold wheel with a quickly detachable template.

[0003] Existing technology allows for easy removal of the stainless steel mesh and two forming rings by rotating each handle to remove the L-shaped flap. This is very convenient for disassembly and assembly. However, due to the large number of handles, operators need to rotate each handle individually for each disassembly and assembly, making it difficult to ensure synchronization. This can lead to uneven stress on the template, deformation, or even jamming of the mold wheel body. It also takes a long time for operators, resulting in low maintenance efficiency. Therefore, we have proposed a sanitary napkin core forming mold wheel that is easy to replace, which can effectively solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a sanitary napkin core forming mold wheel that is easy to disassemble and replace, so as to solve the problems mentioned in the background art, which are that due to the large number of handles, the operator has to rotate the handles one by one to disassemble each time, which makes it difficult to ensure synchronization, which may lead to uneven stress on the template and deformation, or even jamming of the mold wheel body. At the same time, it takes a long time for the operator, resulting in low maintenance efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sanitary napkin core forming mold wheel that is easy to disassemble and replace, including a mounting bracket, a mold wheel body rotatably connected to the upper left side of the mounting bracket via a rotating shaft, and a forming ring and a stainless steel mesh respectively fitted on the outer side of the mold wheel body; it also includes: a negative pressure chamber opened in the middle position inside the mold wheel body, and an adsorption hole opened at equal angles in the middle part of the outer side of the mold wheel body, an air suction pipe fixedly connected to the upper left side of the mold wheel body, and an adjusting valve installed inside the air suction pipe, bevel gear rings connected to both sides inside the mold wheel body, bevel gears arranged at equal angles around the center position of the bevel gear rings inside the mounting bracket, and a threaded rod connected through the bevel gears, a limiting rod fitted on the outer side of one end of the threaded rod, tooth blocks fixed at equal angles on the inner side of the bevel gear rings, and a rotating rod connected to the inner side of the bevel gear ring inside the mold wheel body, and a drive gear fitted and fixed on the outer side of the tail end of the rotating rod.

[0006] Preferably, the stainless steel mesh is disposed between the two forming rings, the inner side of the forming rings is provided with limit grooves at equal angles, the end of the suction pipe away from the mold wheel body is connected to an external air pump, and the suction pipe is connected to the inside of the negative pressure chamber.

[0007] Preferably, the bevel gear ring is rotatably disposed inside the mold wheel body, the bevel gear ring is meshed with the four bevel gears, the four threaded rod bearings are connected inside the mold wheel body, and the threaded rods are threadedly connected to the limiting rods.

[0008] Preferably, a slider is fixedly connected to the outer side of the limiting rod, and the limiting rod is slidably connected to the inside of the mold wheel body through the slider, and the limiting rod and the limiting groove are engaged.

[0009] Preferably, a turntable is fixedly connected to the front end of the rotating rod, a positioning rod is connected through the inside of the turntable, and a positioning groove is formed on the outer side of the mold wheel body at an angle relative to the center position of the turntable.

[0010] Preferably, the front end of the rotating rod extends out of the outer surface of the mold wheel body, the positioning rod is slidably connected to the turntable, and the positioning rod corresponds to the positioning groove.

[0011] Preferably, a return spring is installed at the connection position between the outer side of the positioning rod and the turntable, and the positioning rod and the turntable form an elastic telescopic structure through the return spring.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the easily replaceable sanitary napkin core forming mold wheel adopts a novel structural design, the specific details of which are as follows:

[0013] (1) When it is necessary to disassemble and replace the stainless steel mesh, pull the positioning rod to separate it from the positioning groove, release the limit on the turntable, and then rotate the turntable and drive the drive gear to rotate through the rotating rod. This causes the drive gear to drive multiple meshing tooth blocks to rotate, and at the same time, the bevel ring rotates and drives the four meshing bevel gears to rotate. At this time, the four limit rods move towards the center of the bevel ring and separate from the limit groove, which can release the fixation of the forming ring, and thus facilitate the removal of the forming ring and stainless steel mesh from the mold wheel body, quickly complete the replacement operation, and improve maintenance efficiency.

[0014] (2) Place the new forming ring and stainless steel mesh on the mold wheel body. At this time, rotate the turntable in the opposite direction so that the four limiting rods move outward at the same time and are locked into the corresponding limiting grooves. This can limit and fix the forming ring. Then release the positioning rod so that it is reset under the elastic force of the return spring and inserted into the corresponding positioning groove. This can limit the turntable and prevent it from deflecting during use, thus ensuring the stability of the installation of the forming ring and stainless steel mesh.

[0015] (3) Connect one end of the suction pipe to an external air pump, and the air in the negative pressure chamber can be extracted through the external air pump and the suction pipe, so that a negative pressure environment is formed inside the negative pressure chamber, and the fluff paste blown into the molding chamber inlet is continuously adsorbed on the outside of the mold wheel body through the adsorption hole. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the separation structure of the molding ring and stainless steel mesh from the mold wheel body of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the air intake pipe and the mold wheel body of this utility model;

[0019] Figure 4 This is a side sectional view of the mold wheel body of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the limiting rod, bevel gear, and bevel gear ring of this utility model;

[0021] Figure 6 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Mounting bracket; 2. Rotating shaft; 3. Mold wheel body; 4. Forming ring; 5. Stainless steel mesh; 6. Suction pipe; 7. Regulating valve; 8. Negative pressure chamber; 9. Bevel gear ring; 10. Bevel gear; 11. Threaded rod; 12. Limiting rod; 13. Tooth block; 14. Drive gear; 15. Rotating rod; 16. Turntable; 17. Positioning rod; 18. Positioning groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6 The present invention provides the following technical solution: a sanitary napkin core forming mold wheel that is easy to disassemble and replace;

[0025] Example 1: To address the problems in the prior art where the excessive number of handles necessitates operators rotating each handle individually for disassembly and assembly, making it difficult to ensure synchronization, potentially leading to uneven stress and deformation of the mold plate, or even jamming of the mold wheel body 3, and also resulting in low maintenance efficiency due to the long time required for operators, the following solution is disclosed. Please refer to the following for details. Figures 1-3 and Figure 5 As shown, the device includes a mounting bracket 1, with a mold wheel body 3 rotatably connected to the upper left side of the mounting bracket 1 via a rotating shaft 2. A forming ring 4 and a stainless steel mesh 5 are respectively fitted onto the outer side of the mold wheel body 3. It also includes: bevel gear rings 9 connected to both sides inside the mold wheel body 3; bevel gears 10 evenly distributed at angles around the center of the bevel gear rings 9 inside the mounting bracket 1; threaded rods 11 penetrating the interior of the bevel gears 10; a limiting rod 12 fitted onto the outer side of one end of the threaded rod 11; and tooth blocks 13 fixed at equal angles on the inner surface of the bevel gear rings 9. The mold wheel body 3... A rotating rod 15 is connected to the inner bearing of the bevel ring 9, and a drive gear 14 is fixedly sleeved on the outer side of the tail end of the rotating rod 15. The bevel ring 9 is rotatably disposed inside the mold wheel body 3. The bevel ring 9 is meshed with four bevel gears 10. Four threaded rods 11 are connected to the inside of the mold wheel body 3 by bearings, and the threaded rods 11 are threadedly connected to the limiting rods 12. A slider is fixedly connected to the outer side of the limiting rods 12, and the limiting rods 12 are slidably connected to the inside of the mold wheel body 3 through the sliders. The limiting rods 12 are engaged with the limiting grooves.

[0026] When disassembling and replacing the stainless steel mesh 5, simply pull the positioning rod 17 lightly to disengage it from the positioning groove 18, instantly releasing the mechanical limit on the turntable 16. Then, rotate the turntable 16 in the same direction, and the rotational power is precisely transmitted to the drive gear 14 through the rotating rod 15. The drive gear 14 drives multiple meshing tooth blocks 13 to rotate synchronously, driving the bevel gear ring 9 linked with it to start rotating. At this time, the four evenly distributed bevel gears 10 rotate synchronously with a precise transmission ratio under the drive of the bevel gear ring 9, and at the same time drive the threaded rod 11 to rotate, so that the limiting rod 12 moves on the threaded rod 11. At this time, the four limiting rods 12 move towards the center of the bevel gear ring 9 at the same time. As the limiting rod 12 completely disengages from the limiting groove, the fixed constraint of the forming ring 4 is completely released. At this time, the operator can easily remove the forming ring 4 along with the stainless steel mesh 5 from the mold wheel body 3, quickly complete the replacement operation, and improve maintenance efficiency.

[0027] Example 2: Unlike Example 1, this example utilizes an external air pump and suction pipe 6 to extract air from the negative pressure chamber 8, continuously adsorbing the fluff paste blown in from the molding chamber inlet onto the outside of the mold wheel body 3. See details... Figures 1-4 As shown, a negative pressure chamber 8 is provided in the middle of the mold wheel body 3, and an adsorption hole is provided at an equal angle in the middle of the outer side of the mold wheel body 3. An air suction pipe 6 is fixedly connected to the upper left side of the mold wheel body 3, and an adjustment valve 7 is installed inside the air suction pipe 6. A stainless steel mesh 5 is set between two forming rings 4. A limit groove is provided at an equal angle on the inner side of the forming ring 4. The end of the air suction pipe 6 away from the mold wheel body 3 is connected to an external air pump, and the air suction pipe 6 is connected to the inside of the negative pressure chamber 8.

[0028] One end of the suction pipe 6 is connected to an external air pump. The air in the negative pressure chamber 8 can be extracted through the external air pump and the suction pipe 6, so that a negative pressure environment is formed inside the negative pressure chamber 8. The fluff paste blown into the molding chamber inlet is continuously adsorbed onto the outside of the mold wheel body 3 through the adsorption hole.

[0029] Example 3: Unlike Example 2, this example uses a positioning rod 17 inserted into the corresponding positioning groove 18 to fix the turntable 16, preventing it from deflecting during use and ensuring the stability of the installation of the forming ring 4 and the stainless steel mesh 5. See details for further information. Figure 3 and Figure 6As shown, a turntable 16 is fixedly connected to the front end of the rotating rod 15. A positioning rod 17 is connected through the interior of the turntable 16. A positioning groove 18 is provided at an equal angle to the center of the turntable 16 on the outer side of the mold wheel body 3. The front end of the rotating rod 15 extends out of the outer surface of the mold wheel body 3. The positioning rod 17 and the turntable 16 are slidably connected, and the positions of the positioning rod 17 and the positioning groove 18 correspond to each other. A return spring is installed at the connection position between the outer side of the positioning rod 17 and the turntable 16, and the positioning rod 17 and the turntable 16 form an elastic telescopic structure through the return spring.

[0030] The new molding ring 4 and stainless steel mesh 5 are placed on the mold wheel body 3. At this time, the turntable 16 is rotated in the opposite direction, so that the four limiting rods 12 move outward at the same time and are locked into the corresponding limiting grooves, which can limit and fix the molding ring 4. Then, the positioning rod 17 is released, so that it is reset under the elastic force of the return spring and inserted into the corresponding positioning groove 18, which can limit the turntable 16, thereby preventing it from deflecting during use and ensuring the stability of the installation of the molding ring 4 and stainless steel mesh 5.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A replaceable sanitary napkin core forming mold wheel, comprising a mounting bracket (1), wherein a mold wheel body (3) is rotatably connected to the upper left side of the mounting bracket (1) via a rotating shaft (2), and a forming ring (4) and a stainless steel mesh (5) are respectively sleeved on the outer side of the mold wheel body (3); characterized in that, Also includes: A negative pressure chamber (8) is provided in the middle of the mold wheel body (3), and an adsorption hole is provided at an equal angle in the middle of the outer side of the mold wheel body (3). An air suction pipe (6) is fixedly connected to the upper left side of the mold wheel body (3), and an adjustment valve (7) is installed inside the air suction pipe (6). Both sides of the mold wheel body (3) are connected to bevel gear rings (9). The mounting bracket (1) is provided with bevel gears (10) at an equal angle about the center of the bevel gear ring (9), and a threaded rod (11) is connected through the bevel gear (10). A limiting rod (12) is sleeved on the outer side of one end of the threaded rod (11). A tooth block (13) is fixed at an equal angle on the inner side of the bevel gear ring (9). A rotating rod (15) is connected to the inner side of the bevel gear ring (9) inside the mold wheel body (3), and a drive gear (14) is sleeved on the outer side of the tail end of the rotating rod (15).

2. The sanitary napkin core forming mold wheel that is easy to replace according to claim 1, characterized in that: The stainless steel mesh (5) is set between two forming rings (4). The inner side of the forming ring (4) is provided with a limiting groove at an equal angle. The end of the suction pipe (6) away from the mold wheel body (3) is connected to an external air pump, and the suction pipe (6) is connected to the inside of the negative pressure chamber (8).

3. The sanitary napkin core forming mold wheel that is easy to disassemble and replace according to claim 1, characterized in that: The bevel ring (9) is rotatably disposed inside the mold wheel body (3). The bevel ring (9) is meshed with the four bevel gears (10). The four threaded rods (11) are bearing connected inside the mold wheel body (3), and the threaded rods (11) are threadedly connected to the limiting rods (12).

4. The sanitary napkin core forming mold wheel that is easy to disassemble and replace according to claim 1, characterized in that: The limiting rod (12) is fixedly connected to a slider on its outer side, and the limiting rod (12) is slidably connected to the inside of the mold wheel body (3) through the slider, and the limiting rod (12) and the limiting groove are engaged.

5. The sanitary napkin core forming mold wheel that is easy to disassemble and replace according to claim 1, characterized in that: The front end of the rotating rod (15) is fixedly connected to a turntable (16), and a positioning rod (17) is connected through the inside of the turntable (16). The outer side of the mold wheel body (3) is provided with a positioning groove (18) at an angle relative to the center position of the turntable (16).

6. The sanitary napkin core forming mold wheel that is easy to disassemble and replace according to claim 5, characterized in that: The front end of the rotating rod (15) extends out of the outer surface of the mold wheel body (3), the positioning rod (17) is slidably connected to the turntable (16), and the positioning rod (17) corresponds to the positioning groove (18).

7. The sanitary napkin core forming mold wheel that is easy to disassemble and replace according to claim 5, characterized in that: A return spring is installed at the connection position between the outer side of the positioning rod (17) and the turntable (16), and the positioning rod (17) and the turntable (16) form an elastic telescopic structure through the return spring.

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