Double station non-stop folding and stacking apparatus with assembled frame

Abstract

The application discloses a double-station non-stop folding and stacking equipment with an assembled frame, and belongs to the technical field of sanitary product processing equipment. The equipment comprises an assembled frame, a folding and stacking mechanism and a material receiving platform. The assembled frame is composed of an upper frame and a lower frame. Two material receiving stations are arranged in the lower frame. The folding and stacking mechanism is provided with a mounting bracket, a folding swing arm and a first driving structure. The two ends of the folding swing arm are respectively provided with an inlet end and an outlet end. A transverse moving mechanism is arranged on one side of the folding and stacking mechanism. The transverse moving mechanism comprises a second driving structure, a transverse moving driving shaft, a transverse moving gear and a transverse moving rack. The material receiving platform is arranged above the material receiving stations on the inner side of the lower frame. The side surface of the assembled frame is provided with a lifting mechanism. The folding and stacking equipment can realize non-stop folding and stacking of the core body of the sanitary product, and has high stability during the folding and stacking process.

Description

Technical Field

[0001] This invention relates to the field of hygiene product processing equipment technology, specifically to a dual-station non-stop folding and stacking equipment using an assembled frame. Background Technology

[0002] Hygiene product cores are typically wound up, with the slit cores wound onto a winding shaft to form rolls of core material. A drawback of this method is the relatively short length of each roll of core material. This necessitates frequent unwinding during subsequent processing, increasing material waste and reducing processing efficiency. Currently, some core materials are folded and stacked onto pallets using a swing arm that continuously oscillates and moves horizontally and vertically. While the pallet can accommodate longer and continuous core materials, the swing arm's oscillation and vertical movement can cause increased gaps between the arm and the machine frame after prolonged use. This leads to wobbling during operation and uneven placement of the core material on the pallet.

[0003] Based on the above, Chinese patent document CN224118295U discloses a folding and stacking machine for sanitary product cores, belonging to the technical field of sanitary product core folding and stacking equipment. It includes a folding and stacking mechanism, a movable frame, and a fixed frame. The folding and stacking mechanism includes the following structure: a frame, a first motor on one side of the frame, and a folding and stacking swing arm movably connected to the frame at the drive end of the first motor; the folding and stacking mechanism is mounted inside the movable frame via the frame, and several lifting pulleys are provided on the outside of the movable frame; the fixed frame is sleeved on the outside of the movable frame, and the surfaces of the lifting pulleys abut against the inner wall of the fixed frame; a second motor is provided at the top of the fixed frame, and a lifting transmission mechanism is provided between the output end of the second motor and the movable frame to cause the movable frame to reciprocate in the vertical direction.

[0004] The aforementioned patent document discloses a device for processing the core material of sanitary products by folding and stacking. During operation, the device requires a second motor to work with a lifting transmission mechanism to make the overall structure formed by the movable frame and the folding and stacking mechanism reciprocate in the vertical direction. Because the overall structure is heavy, components such as sprockets, chains, and slide rails are more prone to wear and tear, which increases the gap between the cooperating components. Therefore, the folding and stacking mechanism is also prone to shaking during operation. Summary of the Invention

[0005] To address the technical deficiencies in the background technology, this invention proposes a dual-station non-stop folding and stacking device with an assembled frame, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows: A dual-station non-stop folding and stacking equipment using an assembled frame includes an assembled frame, a folding and stacking mechanism, and a receiving platform. The assembled frame consists of an upper frame and a lower frame. The upper frame is mounted on top of the lower frame, and two receiving stations are provided on the inner bottom of the lower frame. The folding stacking mechanism is provided with a mounting bracket installed inside the upper frame. One side of the mounting bracket is movably connected to a folding swing arm extending in the vertical direction, and the other side is provided with a first driving structure for swinging the folding swing arm. The top and bottom ends of the folding swing arm are respectively provided with a feeding end and a discharging end. The folding and stacking mechanism is provided on one side with a transverse movement mechanism that allows it to reciprocate between two receiving stations. The transverse movement mechanism includes: a second drive structure, which is fixedly connected to the mounting bracket. The output end of the second drive structure is provided with a transverse drive shaft. The end of the transverse drive shaft is provided with a transverse gear and a transverse rack. The transverse rack is fixedly connected to the upper frame. The two ends of the transverse rack extend above the two receiving stations respectively. The transverse rack and the transverse gear mesh with each other. The receiving platform is provided with two and is matched with two receiving stations one by one. The receiving platform is located above the receiving station on the inner side of the lower frame. The side of the assembled frame is provided with two lifting mechanisms that enable the two receiving platforms to reciprocate independently in the vertical direction.

[0006] As a further technical solution of the present invention, the lifting mechanism includes: a third driving structure, the output end of which is provided with a lifting driving shaft, the end of which is provided with a driving wheel assembly, the driving wheel assembly being composed of two adjacent driving sprockets; a transmission wheel assembly, which is composed of two transmission sprockets, the two transmission sprockets being located above opposite ends of the receiving platform; a lifting wheel assembly, which is composed of two adjacent lifting sprockets, the two lifting sprockets being movably connected to a lifting seat, the bottom of which is provided with a lifting push rod, the lifting push rod being provided with a movable rod that reciprocates in the vertical direction and is fixedly connected to the lifting seat; and two lifting chains, one end of which is fixedly connected to the assembled frame and passes sequentially through the bottom of the lifting sprocket, the top of the driving sprocket, and the top of the transmission sprocket before the other end is fixedly connected to the receiving platform, the ends of the two lifting chains being fixedly connected to opposite ends of the receiving platform. The third drive structure is fixedly connected to the assembled frame, and the transmission sprocket is provided with a shaft that is movably connected to the assembled frame.

[0007] As a further technical solution of the present invention, the two ends of the lifting drive shaft extend outward from the opposite sides of the third drive structure. Each end of the lifting drive shaft is provided with a set of drive wheels. The transmission wheel set and the lifting wheel set are each provided with two sets and matched with the two sets of drive wheels one by one. The lifting chain is provided with four chains, two of which are matched with one set of drive wheels, transmission wheels, and lifting wheels. The ends of the four lifting chains are respectively fixedly connected to the four corners of the receiving platform.

[0008] As a further technical solution of the present invention, the third drive structure is fixedly connected to the upper frame, the transmission sprocket is provided with a shaft that is movably connected to the upper frame, and the bottom of the lifting push rod is provided with a fixing sleeve that is fixedly connected to the lower frame.

[0009] As a further technical solution of the present invention, the two ends of the transverse drive shaft extend outward from the opposite sides of the second drive structure, and each end of the transverse drive shaft is provided with a transverse gear, and the upper frame is provided with two transverse racks that match the transverse gears one by one.

[0010] As a further technical solution of the present invention, the mounting bracket is provided with a translation mechanism that causes the folding and stacking mechanism to reciprocate in the horizontal direction. The translation mechanism includes: a fourth drive structure, which is fixedly connected to the mounting bracket. The output end of the fourth drive structure is provided with a translation drive shaft. The end of the translation drive shaft is provided with a translation gear and a translation rack. The translation rack meshes with the translation gear. The translation rack is fixedly connected to the upper frame. The translation rack extends in a direction perpendicular to the extension of the transverse rack.

[0011] As a further technical solution of the present invention, the top of the upper frame is provided with a translation slide rail in the same direction as the extension of the translation rack, and the mounting bracket is provided with a translation pulley mounted on the top of the translation slide rail.

[0012] As a further technical solution of the present invention, a lower support column is provided at each of the four corners of the lower frame, and a fitting protrusion is provided at the top of the lower support column. Each of the four corners of the upper frame is provided with an upper support column, and the bottom end of the upper support column is provided with a fitting groove that matches the fitting protrusion. The lower support column and the upper support column are fixedly connected by a fixing plate.

[0013] As a further technical solution of the present invention, the side of the lower frame is provided with two discharge ports that are matched one by one with the receiving station. The bottom edge of each discharge port is provided with an outwardly extending discharge guide plate, and the top of the discharge guide plate forms an inclined surface extending downward.

[0014] As a further technical solution of the present invention, the bottom of the upper frame is provided with a transverse slide rail in the same direction as the transverse rack, and the bottom of the mounting bracket is provided with a transverse slider mounted on the top of the transverse slide rail.

[0015] The beneficial effects of this invention are as follows: This invention discloses a folding and stacking device that can improve the working stability during the non-stop folding and stacking of materials. This folding and stacking device uses the reciprocating swing of the folding arm of the folding and stacking mechanism to fold and stack the cores of sanitary products at the receiving station to form a core stack. As the height of the core stack gradually increases, the receiving platform is lowered smoothly by the lifting mechanism, so that the distance between the top of the core stack and the discharge end of the folding arm remains stable. When the first receiving station is full of sanitary product cores, the folding and stacking mechanism switches stations by the transverse movement mechanism, realizing the non-stop folding and stacking operation of sanitary products. The folding and stacking mechanism only needs to move in the horizontal direction during the folding and stacking process without lifting or lowering, so that the folding and stacking device has high stability during the folding and stacking process. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a dual-station non-stop folding and stacking equipment using an assembled frame.

[0017] Figure 2 This is a schematic diagram of the upper frame of a dual-station non-stop folding and stacking equipment that uses an assembled frame.

[0018] Figure 3 This is a schematic diagram of the lower frame of a dual-station non-stop folding and stacking equipment that uses an assembled frame.

[0019] Figure 4 This is a front view of the folding and stacking mechanism of a dual-station non-stop folding and stacking equipment using an assembled frame.

[0020] Figure 5 This is a structural diagram of the folding and stacking mechanism of a dual-station non-stop folding and stacking equipment using an assembled frame.

[0021] Figure 6 yes Figure 1 A partial schematic diagram of point A in the middle.

[0022] Figure 7 yes Figure 1 A partial schematic diagram at point B in the middle.

[0023] Figure 8 yes Figure 3 A partial schematic diagram at point C.

[0024] Figure 9 yes Figure 3 A partial schematic diagram at point D in the middle.

[0025] Wherein: 1-Assembled frame, 11-Upper frame, 111-Upper support column, 12-Lower frame, 121-Lower support column, 122-Matching protrusion, 123-Baffle plate, 13-Receiving station, 14-Fixing plate, 15-Discharge port, 16-Discharge guide plate, 2-Folding stacking mechanism, 21-Mounting bracket, 22-Folding swing arm, 23-First drive structure, 24-Feeding end, 25-Discharge end, 3-Receiving platform, 4-Transverse movement mechanism, 41-Second drive structure, 42-Transverse movement drive shaft 43-Transverse gear, 44-Transverse rack, 45-Transverse slide rail, 46-Transverse slider, 5-Lifting mechanism, 51-Third drive structure, 52-Lifting drive shaft, 53-Drive sprocket, 54-Transmission sprocket, 55-Lifting sprocket, 56-Lifting seat, 57-Lifting push rod, 571-Modible rod, 572-Fixed sleeve, 58-Lifting chain, 6-Translation mechanism, 61-Fourth drive structure, 62-Translation gear, 63-Translation rack, 64-Translation slide rail, 65-Translation pulley. Detailed Implementation

[0026] The embodiments of the present invention will be described below with reference to the accompanying drawings and examples. The embodiments of the present invention are not limited to the following examples, and the present invention relates to the necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0027] A dual-station non-stop folding and stacking equipment with an assembled frame includes an assembled frame 1, a folding and stacking mechanism 2, and a receiving platform 3. The assembled frame 1 consists of an upper frame 11 and a lower frame 12. The upper frame 11 is mounted on top of the lower frame 12, and two receiving stations 13 are provided on the inner bottom of the lower frame 12. The folding stacking mechanism 2 is provided with a mounting bracket 21 installed inside the upper frame 11. A folding swing arm 22 extending in the vertical direction is movably connected to one side of the mounting bracket 21, and a first drive structure 23 for swinging the folding swing arm 22 is provided on the other side. The first drive structure 23 adopts a servo motor. The top and bottom ends of the folding swing arm 22 are respectively provided with a feeding end 24 and a discharging end 25. The folding and stacking mechanism 2 is provided on one side with a transverse movement mechanism 4 that allows it to reciprocate between two receiving stations 13. The transverse movement mechanism 4 includes: a second drive structure 41, which is fixedly connected to the mounting bracket 21. The output end of the second drive structure 41 is provided with a transverse drive shaft 42. The end of the transverse drive shaft 42 is provided with a transverse gear 43 and a transverse rack 44. The transverse rack 44 is fixedly connected to the upper frame 11. Both ends of the transverse rack 44 extend above the two receiving stations 13 respectively. The transverse rack 44 and the transverse gear 43 mesh with each other. The receiving platform 3 is provided with two and is matched with the two receiving stations 13 one by one. The receiving platform 3 is located above the receiving station 13 inside the lower frame 12. The side of the assembled frame 1 is provided with two lifting mechanisms 5 that enable the two receiving platforms 3 to reciprocate independently in the vertical direction.

[0028] This invention discloses a folding and stacking device that can improve operational stability during the non-stop folding and stacking process of materials. This folding and stacking device is mainly used for folding and stacking continuously formed sanitary product cores. (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The folding and stacking equipment mainly consists of an assembled frame 1, a folding and stacking mechanism 2, and a receiving platform 3. The assembled frame 1 consists of an upper frame 11 and a lower frame 12. The upper frame 11 is used to install the folding and stacking mechanism 2, and the lower frame 12 is used to install the receiving platform 3. After a carrier plate for receiving the sanitary product core is placed on the top of the receiving platform 3, the folding and stacking mechanism 2 drives the folding swing arm 22 to swing back and forth above the carrier plate through the first driving structure 23. The sanitary product core enters the folding swing arm 22 from the feeding end 24 and leaves from the discharging end 25, so that the sanitary product core is folded back and forth on the carrier plate. The working principle of the folding and stacking mechanism 2 is the same as that of the folding and stacking equipment swing arm mechanism of Chinese Patent CN108190477B. It should be noted that when the sanitary product core begins to be folded and stacked, the receiving platform 3 is raised to a position close to the discharge end 25 by the lifting mechanism 5, reducing the distance between the discharge end 25 and the top surface of the carrier plate, and reducing the height of the sanitary product core as it falls, so that the sanitary product core can be stacked more accurately to the designated position; as the height of the core stack formed by the folding and stacking of the sanitary product core on the top of the carrier plate gradually increases, the height of the receiving platform 3 is gradually lowered by the lifting mechanism 5, so that the distance between the discharge end 25 and the top surface of the core stack remains stable, so that the sanitary product core is always accurately stacked to the designated position; Conventional folding and stacking equipment only has one station for receiving materials. When the station is full of materials, the machine needs to be stopped and waited for the material to be moved away before it can be restarted to fold and stack the materials again, resulting in low work efficiency. In this invention, after the folding and stacking mechanism 2 has folded and stacked the sanitary product core on the top of the carrier plate of the first receiving platform 3, the lateral movement mechanism 4 will move the folding and stacking mechanism 2 to the top of the second receiving station 13, and then the folding and stacking operation of the sanitary product core will be carried out on the second receiving platform 3. This can realize the non-stop folding and stacking operation of the sanitary product core, which is conducive to improving work efficiency. It should be noted that the working principle of the transverse mechanism 4 is as follows: the second drive structure 41 adopts a servo motor, which drives the transverse drive shaft 42 to rotate and drives the transverse gear 43 to rotate synchronously. The rotating transverse gear 43 meshes with the transverse rack 44 and rolls along the extension direction of the transverse rack 44, thereby driving the folding and stacking mechanism 2 to move along the extension direction of the transverse rack 44, so that the folding and stacking mechanism 2 moves from above one receiving station 13 to above another receiving station 13. Based on the working principle of the transverse mechanism 4, after the folding and stacking mechanism 2 has folded and stacked the sanitary product core in the receiving platform 3 inside the first receiving station 13, the folding and stacking mechanism 2 is moved to above the second receiving station 13 by the transverse mechanism 4 and then the folding and stacking operation of the sanitary product core is carried out immediately, so as to realize the non-stop folding and stacking operation of the sanitary product core. In addition, the bottom of the upper frame 11 is provided with a transverse slide rail 45 that extends in the same direction as the transverse rack 44, and the bottom of the mounting bracket 21 is provided with a transverse slider 46 mounted on the top of the transverse slide rail 45. When the folding and stacking mechanism 2 switches positions by transverse movement under the action of the transverse mechanism 4, the mounting bracket 21 slides along the transverse slide rail 45 through the transverse slider 46, which can make the transverse movement process of the folding and stacking mechanism 2 more stable. It should be further explained that after the folding and stacking mechanism 2 completes the switching between the two receiving stations 13, the end of the fully folded and stacked core stack will be connected to the beginning of the core stack that is being folded and stacked. The operator cuts off the part connecting the two core stacks, so that the two core stacks are separated and then the core stacks are transferred, so that the receiving platform 3 in the first receiving station 13 is empty, so that the folding and stacking mechanism 2 can continuously perform the folding and stacking operation of the sanitary product cores after the next lateral movement. In the process of folding and stacking sanitary product cores, the folding and stacking mechanism 2 only needs to move horizontally inside the upper frame 11. It does not need to be lifted as the core stack height increases. Instead, the receiving platform 3 drives the core stack, which is lighter than the folding and stacking mechanism 2, to descend synchronously. This reduces the number of directions that the folding and stacking mechanism 2 needs to move, thus improving its stability during non-stop folding and stacking. With improved stability, the folding and stacking mechanism 2 can use a higher folding and stacking speed. The folding and stacking equipment of the present invention has a folding and stacking speed of 300-500 m / min for sanitary product cores.

[0029] As one of the preferred embodiments of the present invention, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 The lifting mechanism 5 includes: a third drive structure 51, with a lifting drive shaft 52 at its output end; a drive wheel assembly at the end of the lifting drive shaft 52, consisting of two adjacent drive sprockets 53; a transmission wheel assembly, consisting of two transmission sprockets 54, located above opposite ends of the receiving platform 3; and a lifting wheel assembly, consisting of two adjacent lifting sprockets 55, movably connected to a lifting seat 56. A lifting push rod 57 is located at the bottom of the lifting seat 56, and the lifting push rod 57 has a movable rod 571 that reciprocates vertically and is fixedly connected to the lifting seat 56. Two lifting chains 58, one end of which is fixedly connected to the assembled frame 1 and passes sequentially through the bottom of the lifting sprocket 55, the top of the drive sprocket 53, and the top of the transmission sprocket 54, and the other end is fixedly connected to the receiving platform 3. The ends of the two lifting chains 58 are respectively fixedly connected to the opposite ends of the receiving platform 3. The third drive structure 51 is fixedly connected to the assembled frame 1, and the transmission sprocket 54 is provided with a shaft that is movably connected to the assembled frame 1. The third drive structure 51 is fixedly connected to the upper frame 11, and the transmission sprocket 54 is provided with a shaft that is movably connected to the upper frame 11. The bottom of the lifting push rod 57 is provided with a fixed sleeve 572 that is fixedly connected to the lower frame 12. The third drive structure 51 uses a worm gear reducer, and the lifting push rod 57 uses a pneumatic push rod. The operation of the third drive structure 51 causes the lifting drive shaft 52 to rotate, which in turn drives the two drive sprockets 53 in the drive wheel set to rotate and the two lifting chains 58 to move. Different directions of movement of the lifting chains 58 will cause the receiving platform 3 to rise or fall. The transmission sprocket 54 is used to adjust the position of the lifting chain 58 and the receiving platform 3 at one fixed end. The lifting sprocket 55 forms a pulley-like structure at the other end of the lifting chain 58. In this structure, when the lifting chain 58 pulls the receiving platform 3 to rise, the lifting push rod 57 pulls the lifting seat 56 and the lifting sprocket 55 downward through the movable rod 571. This increases the length of the lifting chain 58 near the end of the drive sprocket 53 that is close to the lifting sprocket 55, keeping the lifting chain 58 taut and allowing the receiving platform 3 to rise through tension. Conversely, the lifting push rod 57 pushes the lifting seat 56 and the lifting sprocket 55 upward through the movable rod 571, releasing more of the lifting chain 58 to lower the receiving platform 3.

[0030] As one of the preferred embodiments of the present invention, the two ends of the lifting drive shaft 52 extend outward from the opposite sides of the third drive structure 51. Each end of the lifting drive shaft 52 is provided with a set of drive wheel sets. The transmission wheel set and the lifting wheel set are each provided with two sets and matched with the two sets of drive wheel sets one by one. There are four lifting chains 58, of which two lifting chains 58 are matched with one set of drive wheel sets, transmission wheel sets, and lifting wheel sets. The ends of the four lifting chains 58 are respectively fixedly connected to the four corners of the receiving platform 3. The lifting mechanism 5 is fixed at the four corners of the receiving platform 3 by four lifting chains 58, which can make the receiving platform 3 more balanced and stable, and facilitate the smoother lifting or lowering of the receiving platform 3.

[0031] As one of the preferred embodiments of the present invention, the two ends of the transverse drive shaft 42 extend outward from opposite sides of the second drive structure 41. Each end of the transverse drive shaft 42 is provided with a transverse gear 43. The upper frame 11 is provided with two transverse racks 44 that match the transverse gears 43 one by one. The transverse mechanism 4 makes the transverse gears 43 at both ends of the two transverse drive shafts 42 rotate synchronously through the second drive structure 41. The two rotating transverse gears 43 mesh with the two transverse racks 44 one by one, so that there are two force points between the transverse mechanism 4 and the upper frame 11, which is beneficial to improving the stability of the folding and stacking mechanism 2 when it moves through the transverse mechanism 4.

[0032] As one of the preferred embodiments of the present invention, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 The mounting bracket 21 is equipped with a translation mechanism 6 that causes the folding and stacking mechanism 2 to reciprocate in the horizontal direction. The translation mechanism 6 includes: a fourth drive structure 61, which adopts a servo motor and is fixedly connected to the mounting bracket 21. The output end of the fourth drive structure 61 is provided with a translation drive shaft, and the end of the translation drive shaft is provided with a translation gear 62 and a translation rack 63. The translation rack 63 meshes with the translation gear 62 and is fixedly connected to the upper frame 11. The translation rack 63 extends in a direction perpendicular to the extension of the transverse rack 44. The fourth drive structure 61 drives the translation gear 62 to rotate through the translation drive shaft. The translation gear 62 meshes with the translation rack 63, causing the folding and stacking mechanism 2 to translate along the extension direction of the translation rack 63. This translation movement is perpendicular to the folding direction of the sanitary product core. When the folding and stacking mechanism 2 folds and stacks the sanitary product core, it translates through the translation mechanism 6, which can increase the area of ​​the sanitary product core laid flat on the surface of the carrier plate, thereby increasing the volume of the core stack and the stackable length of the sanitary product core in the core stack. Furthermore, a baffle plate 123 is provided on both sides of the top of the lower frame 12 in the direction of translation of the folding and stacking mechanism 2. Since the direction of translation of the folding and stacking mechanism 2 is the width direction of the sanitary product core, the sanitary product core at the top of the core stack is still relatively loose, which makes it easy for the sanitary product core at the top edge of the core stack to slide outward along its width direction. The baffle plate 123 can prevent these sanitary product cores from sliding outward and ensure that the sanitary product cores are folded and stacked normally on the top of the receiving platform 3. As the receiving platform 3 gradually descends, the sanitary product cores near the bottom of the core stack are pressed down by the sanitary product cores above, so they are not easy to slide outward. Therefore, the baffle plate 123 only needs to block the sanitary product cores at the top of the core stack near the discharge end 25 on the top of the lower frame 12.

[0033] As one of the preferred embodiments of the present invention, the top of the upper frame 11 is provided with a translation slide rail 64 extending in the same direction as the translation rack 63, and the mounting bracket 21 is provided with a translation pulley 65 mounted on the top of the translation slide rail 64. When the folding and stacking mechanism 2 performs translational movement, it moves along the translation slide rail 64 via the translation pulley 65, which can improve its stability during the translational movement. In addition, since the translation pulley 65 is mounted on the top of the translation slide rail 64, the fit clearance between the translation pulley 65 and the translation slide rail 64 is unlikely to increase due to wear. Therefore, the translation of the folding and stacking mechanism 2 by the translation mechanism 6 will not affect its stability during folding and stacking.

[0034] As one of the preferred embodiments of the present invention, refer to Figure 1 , Figure 2 , Figure 9 Each of the four corners of the lower frame 12 is provided with a lower support column 121, and the top of the lower support column 121 is provided with a fitting protrusion 122. Each of the four corners of the upper frame 11 is provided with an upper support column 111, and the bottom of the upper support column 111 is provided with a fitting groove that matches the fitting protrusion 122. When transporting the folding and stacking equipment of the present invention, the lower frame 12 and the upper frame 11 need to be separated. Through the cooperation of the fitting protrusion 122 and the fitting groove, the lower frame 12 and the upper frame 11 can be accurately fitted and positioned to each other, thereby improving the assembly efficiency of the folding and stacking equipment. When the folding and stacking equipment needs to be loaded into the container for export... When the lower frame 12 is in use, its design height can be close to the internal height of the container (2.58m), improving the utilization rate of the container's internal space. Furthermore, by maximizing the height of the lower frame 12, the length of the core of the foldable and stackable sanitary products can also be maximized. In addition, the lower support column 121 and the upper support column 111 are fixedly connected by a fixing plate 14. Fixing holes are opened on the surfaces of the fixing plate 14, the lower support column 121, and the upper support column 111. Bolts and nuts are used to fix the fixing plate 14, the lower support column 121, and the upper support column 111 together.

[0035] As one of the preferred embodiments of the present invention, the lower frame 12 has two discharge ports 15 that are matched one by one with the receiving station 13. The bottom edge of each discharge port 15 is provided with an outwardly extending discharge guide plate 16. The top of the discharge guide plate 16 forms an inclined surface extending downward. The discharge port 15 is used to allow the carrier plate carrying the sanitary product core to leave the folding and stacking equipment for discharge. The inclined discharge guide plate 16 facilitates the movement of material transfer equipment such as forklifts with pulleys at the discharge port 15 and the transportation of the folded and stacked sanitary product core.

[0036] In summary, this invention discloses a folding and stacking device that can improve operational stability during non-stop folding and stacking of materials. This device uses the folding swing arm 22 of the folding and stacking mechanism 2 to fold and stack sanitary product cores at the receiving station 13, forming a core stack. As the core stack height gradually increases, the receiving platform 3 is lowered smoothly by the lifting mechanism 5, maintaining a stable distance between the top of the core stack and the discharge end 25 of the folding swing arm 22. When the first receiving station 13 is filled with sanitary product cores, the folding and stacking mechanism 2 switches stations via the transverse mechanism 4, enabling non-stop folding and stacking of sanitary products. The folding and stacking mechanism 2 only needs to move horizontally during the folding and stacking process without lifting, resulting in high stability during the folding and stacking process.

[0037] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A dual-station non-stop folding and stacking equipment using an assembled frame, comprising an assembled frame (1), a folding and stacking mechanism (2), and a receiving platform (3), characterized in that, The assembled frame (1) consists of an upper frame (11) and a lower frame (12). The upper frame (11) is mounted on top of the lower frame (12), and the lower frame (12) has two material receiving stations (13) on its inner bottom side. The folding stacking mechanism (2) is provided with an installation bracket (21) installed inside the upper frame (11). One side of the installation bracket (21) is movably connected to a folding swing arm (22) extending in the vertical direction, and the other side is provided with a first driving structure (23) that makes the folding swing arm (22) swing. The top and bottom ends of the folding swing arm (22) are respectively provided with a feeding end (24) and a discharging end (25). The folding and stacking mechanism (2) is provided with a transverse movement mechanism (4) on one side, which allows it to reciprocate between two receiving stations (13). The transverse movement mechanism (4) includes: a second drive structure (41), which is fixedly connected to the mounting bracket (21). The output end of the second drive structure (41) is provided with a transverse drive shaft (42). The end of the transverse drive shaft (42) is provided with a transverse gear (43) and a transverse rack (44). The transverse rack (44) is fixedly connected to the upper frame (11). The two ends of the transverse rack (44) extend to the top of the two receiving stations (13) respectively. The transverse rack (44) meshes with the transverse gear (43). The receiving platform (3) is provided in two and is matched with the two receiving stations (13) one by one. The receiving platform (3) is located above the receiving station (13) inside the lower frame (12). The side of the assembled frame (1) is provided with two lifting mechanisms (5) that allow the two receiving platforms (3) to move independently in the vertical direction.

2. The dual-station non-stop folding and stacking equipment using an assembled frame as described in claim 1, characterized in that, The lifting mechanism (5) includes: a third drive structure (51), the output end of which is provided with a lifting drive shaft (52), the end of which is provided with a drive wheel assembly, which is composed of two adjacent drive sprockets (53); a transmission wheel assembly, which is composed of two transmission sprockets (54), which are respectively located above the opposite ends of the receiving platform (3); and a lifting wheel assembly, which is composed of two adjacent lifting sprockets (55), which are movably connected to a lifting mechanism. The lifting seat (56) has a lifting push rod (57) at its bottom. The lifting push rod (57) has a movable rod (571) that moves back and forth in the vertical direction and is fixedly connected to the lifting seat (56). There are two lifting chains (58). One end of the lifting chain (58) is fixedly connected to the assembled frame (1) and passes through the bottom of the lifting sprocket (55), the top of the drive sprocket (53), and the top of the transmission sprocket (54) in sequence. The other end is fixedly connected to the receiving platform (3). The ends of the two lifting chains (58) are fixedly connected to the opposite ends of the receiving platform (3). The third drive structure (51) is fixedly connected to the assembled frame (1), and the transmission sprocket (54) is provided with a shaft that is movably connected to the assembled frame (1).

3. The dual-station non-stop folding and stacking equipment using an assembled frame as described in claim 2, characterized in that, The two ends of the lifting drive shaft (52) extend outward from the opposite sides of the third drive structure (51). Both ends of the lifting drive shaft (52) are provided with a set of drive wheels. The transmission wheel set and the lifting wheel set are provided with two sets and matched with the two sets of drive wheels one by one. The lifting chain (58) is provided with four chains. Two of the lifting chains (58) are matched with one set of drive wheels, transmission wheels, and lifting wheels. The ends of the four lifting chains (58) are fixedly connected to the four corners of the receiving platform (3).

4. The dual-station non-stop folding and stacking equipment using an assembled frame as described in claim 2, characterized in that, The third drive structure (51) is fixedly connected to the upper frame (11), the transmission sprocket (54) is provided with a shaft that is movably connected to the upper frame (11), and the bottom of the lifting push rod (57) is provided with a fixing sleeve (572) that is fixedly connected to the lower frame (12).

5. The dual-station non-stop folding and stacking equipment using an assembled frame as described in claim 1, characterized in that, The two ends of the transverse drive shaft (42) extend outward from opposite sides of the second drive structure (41). Each end of the transverse drive shaft (42) is provided with a transverse gear (43). The upper frame (11) is provided with two transverse racks (44) that match the transverse gears (43) one by one.

6. The dual-station non-stop folding and stacking equipment using an assembled frame as described in claim 1, characterized in that, The mounting bracket (21) is provided with a translation mechanism (6) that causes the folding stacking mechanism (2) to reciprocate in the horizontal direction. The translation mechanism (6) includes: a fourth drive structure (61), which is fixedly connected to the mounting bracket (21). The output end of the fourth drive structure (61) is provided with a translation drive shaft. The end of the translation drive shaft is provided with a translation gear (62) and a translation rack (63). The translation rack (63) meshes with the translation gear (62). The translation rack (63) is fixedly connected to the upper frame (11). The translation rack (63) extends in a direction perpendicular to the extension of the transverse rack (44).

7. The dual-station non-stop folding and stacking equipment using an assembled frame as described in claim 6, characterized in that, The top of the upper frame (11) is provided with a translation slide rail (64) extending in the same direction as the translation rack (63), and the mounting bracket (21) is provided with a translation pulley (65) mounted on the top of the translation slide rail (64).

8. The dual-station non-stop folding and stacking equipment using an assembled frame as described in claim 1, characterized in that, The lower frame (12) is provided with a lower support column (121) at each of its four corners, and the top of the lower support column (121) is provided with a fitting protrusion (122). The upper frame (11) is provided with an upper support column (111) at each of its four corners, and the bottom end of the upper support column (111) is provided with a fitting groove that matches the fitting protrusion (122). The lower support column (121) and the upper support column (111) are both fixedly connected by a fixing plate (14).

9. The dual-station non-stop folding and stacking equipment using an assembled frame as described in claim 1, characterized in that, The lower frame (12) has two discharge ports (15) on its side that are matched one by one with the receiving station (13). The bottom edge of each discharge port (15) is provided with an outwardly extending discharge guide plate (16), and the top of the discharge guide plate (16) forms an inclined surface extending downward.

10. The dual-station non-stop folding and stacking equipment using an assembled frame as described in claim 1, characterized in that, The bottom of the upper frame (11) is provided with a transverse slide rail (45) extending in the same direction as the transverse rack (44), and the bottom of the mounting bracket (21) is provided with a transverse slider (46) mounted on the top of the transverse slide rail (45).

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