A zero-waste edge large ear device

Abstract

The present application relates to sanitary product production equipment field, specifically to a zero scrap edge big ear equipment, solve the problem that the existing waist paste direction changing device is not flexible enough, including rack, the rack is installed with a main shaft, the main shaft is evenly distributed and fixedly installed with a plurality of swing arm assemblies, each group of swing arm assemblies is connected with a driving motor assembly for driving it to rotate on the main shaft, the main shaft is installed with a cam assembly, the cam assembly is arranged in each group of swing arm assemblies, each group of swing arm assemblies is installed with symmetrically distributed rotating assemblies, the rotating assemblies all include rotating blocks and central shafts installed on the rotating blocks, each rotating block is installed with an adsorption box assembly that can rotate with the rotating angle, each group of adsorption box assemblies is connected with a transmission mechanism for driving two synchronous reverse direction changing rotation, the transmission mechanism is matched with the cam assembly, and the periodic direction changing rotation of the two adsorption boxes is driven by the cam assembly to realize transmission.

Description

Technical Field

[0001] This invention relates to the field of sanitary product manufacturing equipment, specifically to a zero-waste edge large ear device. Background Technology

[0002] In the production of baby diapers, the lamination process of the left and right waistbands is complex, especially in adult diaper products where the waistbands are larger. The raw materials require multiple processes such as cutting, spacing adjustment, reversing, and pressing. This process involves numerous steps, so traditional equipment requires multiple sets of moving parts to complete each process separately, resulting in high manufacturing costs. The applicant has a prior application, CN 211535185. U, specifically, is an ear-closing reversing device for a diaper production line, comprising a frame, a rotatable central shaft fixed within the frame, a steering cam fixed to one end of the central shaft, at least two sets of air box suction cup assemblies and an air box suction cup mounting bracket, and at least one set of pitch-changing components. The air box suction cup mounting bracket is movably mounted on the central shaft along its axial direction. Each set of air box suction cup assemblies is radially and evenly distributed on the air box suction cup mounting bracket along the outer circumference of the central shaft. Each set of air box suction cup assemblies includes a left air box suction cup mechanism, a right air box suction cup mechanism, a first rotating shaft, a second rotating shaft, a main drive gear, a first drive gear, a second drive gear, and a drive mechanism. The first and second rotating shafts are rotatably mounted on the left and right sides of the air box suction cup mounting bracket, respectively. The left and right air box suction cup mechanisms are fixed to the upper ends of the first and second rotating shafts, respectively. The first and second drive gears are fixed to the lower ends of the first and second rotating shafts, respectively. The output shaft of the drive mechanism is connected to and drives the drive gear to rotate. The drive gear is located between the first transmission gear and the second transmission gear, and the drive gear meshes with the first transmission gear and the second transmission gear respectively, driving the first transmission gear and the second transmission gear to rotate. The gear ratio of the drive gear to the first transmission gear and the second transmission gear is 1:2. Each set of the pitch-changing components includes a first connecting rod, a second connecting rod, an adjustable connecting buckle, and a limiting connecting rod. One end of the limiting connecting rod is connected to the frame, and the other end of the limiting connecting rod is adjustablely sleeved on the free end of a fixed rod extending outward on the air box suction cup mounting bracket. One end of the first connecting rod is fixedly connected to the steering cam on the central shaft, and the other end of the first connecting rod is fixedly connected to the end of the fixed rod sleeved on the air box suction cup mounting bracket. One end of the second connecting rod is fixedly connected to the air box suction cup mounting bracket, and the other end of the second connecting rod is connected to the end of the first connecting rod away from the steering cam via the adjustable connecting buckle.

[0003] It shows the specific structure of the simplified left and right waist patch directional transmission currently used; however, in use, it has been found that this type of process has several drawbacks: this pitch-changing mechanism can often only change one distance, and because the distance change may be too large, one set of mechanisms cannot complete the task, and another set of mechanisms is needed to connect the intermediate distance changes. This not only makes the debugging process complicated, but also increases the space occupied by the equipment and makes maintenance more difficult; the compatible product specifications and sizes are limited, and the waist patch cannot be tailored to the most comfortable position for the human body according to the actual situation. Summary of the Invention

[0004] Therefore, the present invention provides a zero-waste-edge large ear device, which solves the problem that the existing waist-adhesive reversing device is not flexible enough.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A zero-waste edge large ear device includes a frame with a main shaft mounted on it. Several swing arm assemblies are evenly distributed and fixedly installed on the main shaft. Each swing arm assembly is connected to a drive motor assembly that drives it to rotate on the main shaft. A cam assembly is mounted on the main shaft and is arranged within each swing arm assembly. Symmetrically distributed rotating assemblies are mounted on each swing arm assembly. Each rotating assembly includes a rotating block and a central shaft mounted on the rotating block. Each rotating block has an adsorption box assembly that rotates with it. Each adsorption box assembly is connected to a transmission mechanism that drives both to rotate synchronously in opposite directions. The transmission mechanism cooperates with the cam assembly and is driven by the cam assembly to transmit the periodic rotational movement of the two adsorption boxes.

[0007] Preferably, the transmission mechanism includes a main drive shaft, a transmission crank fixed to the main drive shaft for transmission cooperation with the cam assembly, a driving gear fixed to the main drive shaft, and two driven gears meshing with the driving gear, the two driven gears being mounted on the central shaft.

[0008] Preferably, the main drive shaft is defined as the center, and two central shafts are inclined to the main drive shaft and centrally symmetrically distributed, so that the surfaces of the two adsorption box assemblies on the central shaft are on the same plane after the change of direction rotation.

[0009] Preferably, the transmission mechanism is a multi-link mechanism.

[0010] Preferably, the transmission mechanism is a belt assembly, a chain assembly, or a combination of both.

[0011] Preferably, a limiting mechanism is installed on the central shaft to prevent it from wobbling during rotation.

[0012] Preferably, the rotatable angle of the adsorption box assembly is any value between 0 and 180°.

[0013] By adopting the aforementioned technical solution, the beneficial effects of the present invention are:

[0014] This technical solution simplifies complex operations, reducing the number of machines required to complete a task to a single unit. This significantly lowers manufacturing costs, reduces the production line's footprint, and makes it easier for operators to adjust and use. It also accommodates a wider range of product specifications and sizes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0016] Figure 2 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0017] Figure 3 This is a schematic diagram of the working structure of the device according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram showing the positional distribution of the main drive shaft and the central shaft in the transmission mechanism of an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the transmission mechanism in an embodiment of the present invention when a multi-link mechanism is used.

[0020] Reference numerals in the attached drawings: 1. Main shaft; 2. Swing arm assembly; 3. Drive motor assembly; 4. Cam assembly; 41. Guide groove; 5. Rotating assembly; 51. Rotating block; 52. Central shaft; 6. Adsorption box assembly; 7. Transmission mechanism; 71. Main drive shaft; 72. Transmission crank; 73. Drive gear; 74. Driven gear; 8. Limit wheel; 9. Multi-link mechanism. Detailed Implementation

[0021] The following will describe in detail the implementation of the present invention with reference to specific embodiments, so that the process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] Example

[0023] refer to Figures 1 to 4A zero-waste edge large ear device includes a frame with a main shaft 1 mounted on it. Several swing arm assemblies 2 are evenly distributed and fixedly installed on the main shaft 1. Each swing arm assembly 2 is connected to a drive motor assembly 3 that drives it to rotate on the main shaft 1. The drive motor assembly 3 and the swing arm assembly 2 are connected by gears. A cam assembly 4 is mounted on the main shaft 1, and the cam assembly 4 is arranged within each swing arm assembly 2. Each swing arm assembly 2 has symmetrically distributed rotating assemblies 5, each rotating assembly 5 including a rotating block 51 and a central shaft 52 mounted on the rotating block 51. Each rotating block 51 has an adsorption box assembly 6 that rotates with it. Each adsorption box assembly 6 is connected to a transmission mechanism 7 that drives both to rotate synchronously in opposite directions. The transmission mechanism 7 cooperates with the cam assembly 4 and is driven by the cam assembly 4 to transmit the periodic rotational movement of the two adsorption boxes. Figure 3 As shown, the ear patch material is continuously conveyed after being cut, forming a polygonal shape with zero waste edges, and enters the equipment from the axial direction of the main shaft 1. Adjacent ear patches are sequentially adsorbed by a set of swing arm assemblies 2, and then the corresponding adsorption boxes are rotated by the rotating assembly 5 to obtain the required rotation angle, so that adjacent pairs are distributed on the same axial line of the same set of symmetrical swing arm assemblies 2. The distance w between two ear patches is the lateral spacing of the items to be absorbed laterally. This distance w can be adjusted by changing the outer dimensions of the rotating block 51 to adjust the position distribution of the ear patches after the rotation, so that one set of equipment can be used for the production of multiple product sizes. This technical solution simplifies the process, simplifying the actions that originally required multiple sets of mechanical equipment to one set of equipment, greatly reducing the manufacturing cost of the equipment, shortening the floor space of the production line, and making it easier for operators to adjust and use. It also adapts to a wider range of product specifications and sizes. In this embodiment, the rotation angle of the rotating assembly 5 is a traditional 180-degree turn.

[0024] Structurally, a limiting mechanism is installed on the central shaft 52 to prevent it from wobbling during rotation. The limiting mechanism includes several limiting wheels 8 located at the end away from the rotating block 51 to limit the wobbling of the central shaft 52. Here, there are two limiting wheels 8 on each central shaft 52, and the number varies depending on the space; one or more are possible. In this structure, the transmission mechanism 7 above the limiting mechanism performs transmission, while the limiting wheels 8 below have both limiting and guiding functions, and also constrain the axial direction of the central shaft 52.

[0025] Structurally, the transmission mechanism 7 includes a main drive shaft 71, a transmission crank 72 fixed to the main drive shaft 71 for transmission cooperation with the cam assembly 4, a drive gear 73 fixed to the main drive shaft 71, and two driven gears 74 meshing with the drive gear 73. The two driven gears 74 are mounted on the central shaft 52. The main drive shaft 71 rotates at different angles via a transmission crank 72, which is adapted to the guide groove 41 on the cam assembly 4. The crank 72 changes position accordingly as the guide groove 41 changes, thus adjusting the rotation angle of the main drive shaft 71. As the main drive shaft 71 rotates, the driving gear 73 rotates at a corresponding angle, driving the driven gear 74 to rotate at an angle, which in turn drives the rotating block 51 on the central shaft 52 to achieve the required position change. This gear transmission structure provides precise transmission, is not easily worn, and is easy to adjust. The rotation angle of the rotating block 51 can be adjusted by changing the parameters of the driving gear 73 and the driven gear 74, allowing the rotation angle of the rotating assembly 5 to be any value between 0 and 180 degrees, not just the traditional 180 degrees. The gear transmission parameters include the gear ratio, tooth profile, tooth height, and the number of stages of the driven gear 74, resulting in a more flexible transmission structure.

[0026] In specific implementation, refer to Figure 4 The main drive shaft 71 is defined as the center, and two central shafts 52 are inclined to the main drive shaft 71 and symmetrically distributed, so that the surfaces of the two adsorption box assemblies 6 on the central shaft 52 are on the same plane after the change of direction rotation. This is because, in the traditional structure, after the rotating blocks 51 on the same group of swing arm assemblies 2 receive the ear patches one after another, the rotating blocks 51 on the same group will not be on the same plane after rotation due to structural limitations. Although this situation still makes the ear patches output in a group symmetrically, the two cannot unify their adhesion pressure surface when they are adhered in the next process, resulting in poor subsequent adhesion effect.

[0027] This embodiment's structure, through... Figure 4 The structural design involves the central shaft 52 and the main drive shaft 71 being arranged at an angle. After rotation, the rotating blocks 51 on both sides are placed on the same plane, and the two rotating blocks 51 are distributed along the axial direction of the main shaft 1 to achieve output on the same plane. Furthermore, during installation, after the drive gear 73 is installed, the driven gear 74 is also structurally designed to meet the transmission requirements in the inclined direction. That is, the transmission gears on the left and right sides of the drive gear 73 are symmetrically designed, and the transmission positions in the height direction are different, so as to meet the gear transmission application under the above-mentioned inclined structure.

[0028] For example Figure 5As shown, the transmission mechanism 7 is connected to the multi-link mechanism 9. The multi-link mechanism 9 consists of multiple links of different lengths that work together for transmission. Those skilled in the art can design it according to transmission requirements, and will not be elaborated on here.

[0029] Furthermore, the transmission mechanism 7 is a belt assembly, a chain assembly, or a combination of both, which is also a structural change of the equipment in this embodiment.

[0030] Furthermore, during use, the output spacing of each earpiece can be adjusted by changing the output of the drive motor assembly, thereby adapting it to different output requirements and meeting more production needs. This technical solution does not specifically describe conventional components in the art such as the adsorption box assembly and cam assembly; please refer to the applicant's prior applications.

[0031] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A zero-kiss big ear apparatus, characterized by: The utility model provides a kind of automatic packaging machine, including rack, the rack is erected with a main shaft (1), the main shaft (1) is evenly distributed and fixedly installed with several swing arm assemblies (2), each group swing arm assemblies (2) is connected with the drive motor assembly (3) for driving it rotates on the main shaft (1), cam assembly (4) is installed on the main shaft (1), the cam assembly (4) is arranged in each group swing arm assemblies (2), each group swing arm assemblies (2) is installed with the rotation assembly (5) of symmetrical distribution, the rotation assembly (5) includes rotation block (51) and the central shaft (52) installed on rotation block (51), each rotation block (51) is installed with adsorption box assembly (6) that can rotate with its angle of rotation, every group adsorption box assembly (6) is connected with transmission mechanism (7) for driving two synchronous reverse direction rotation, the transmission mechanism (7) is matched with the cam assembly (4), and the transmission mechanism (7) is driven by the cam assembly (4) to realize the transmission of the periodic direction changing rotation action of two adsorption boxes; The transmission mechanism (7) includes main transmission shaft (71), transmission crank (72) for being fixedly connected on main transmission shaft (71) and being used for transmission cooperation with cam assembly (4), driving gear (73) fixedly connected on the main transmission shaft (71), two driven gears (74) meshing transmission with the driving gear (73), two driven gears (74) are installed on the central shaft (52); The central shaft (52) is installed with limiting mechanism to avoid the wobble of its rotation.

2. A zero-scrappage big ear device according to claim 1, characterized in that: The main transmission shaft (71) is defined as center, two central shafts (52) are arranged obliquely with the main transmission shaft (71) and are centrally symmetrically distributed, so that the surface of two adsorption box assemblies (6) on the central shaft (52) is in the same plane after direction changing rotation.

3. A zero-scrappage big ear device according to claim 1, characterized in that: The transmission mechanism (7) is driven connection of multi-link mechanism (9).

4. A zero-scrappage big ear device according to claim 1, characterized in that: The transmission mechanism (7) is driven connection of belt assembly or chain assembly or both.

5. A zero-scrappage large ear device according to any one of claims 1-4, characterized in that: The rotatable angle of the adsorption box assembly (6) is any value between 0-180 °.

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