A distance control system

Abstract

This invention provides a distance adjustment system, belonging to the technical field of sheet production equipment. The distance adjustment system includes a cutting device, a separating device, and a distance adjustment device. The cutting device cuts continuous strip products into at least two groups of sheet products, each group comprising at least two sheet products. The separating device includes at least two groups of pickup mechanisms, rotatably arranged along a rotation axis, each group including at least two pickup pads. The separating device also includes a guide section, circumferentially arranged along the rotation axis, with the pickup pads connected to a receiving section. The guide section includes at least a pickup segment and a transfer segment. The distance between the pickup pads of the at least two groups of pickup mechanisms is different when the receiving section is connected to the pickup segment and when the receiving section is connected to the transfer segment. The distance adjustment system provided by this invention can automatically adjust the distance between multiple groups of sheet products.

Description

Technical Field

[0001] This invention relates to the field of sheet production equipment technology, and in particular to a spacing adjustment system. Background Technology

[0002] In automated production of sheet products, the process involves cutting a continuous strip of material into two adjacent sets of sheet products. The spacing between these sets then needs to be adjusted to suit subsequent production equipment or processes. Sheet products can include hygiene products, clothing, and medical products, and automated production of sheet products includes packaging and other related scenarios.

[0003] Existing technologies generally rely on manual methods, but this carries the risk of pollution and may be subject to human error. While robotic methods can ensure accuracy, they are not very efficient. Summary of the Invention

[0004] In a first aspect, the present invention provides a distance adjustment system for adjusting the distance between cut products in the flow direction and the width direction, comprising a cutting device, a separating device, and a distance adjustment device. The cutting device cuts continuous strip products into at least two groups of sheet products, each group of sheet products comprising at least two sheet products. The separating device picks up the sheet products and adjusts the distance between each group of sheet products in the width direction. The distance adjustment device receives the sheet products from the separating device and adjusts the distance between adjacent sheet products in each group of sheet products in the flow direction.

[0005] The separation device includes at least two sets of pickup mechanisms. The number of pickup mechanisms is the same as the number of sheet products, and each set of pickup mechanisms corresponds to one set of sheet products. The pickup mechanisms are rotatably arranged along the rotation axis. The pickup mechanism includes a pickup pad, which is configured to move axially along the rotation axis.

[0006] The separation device also includes a guide section, which is arranged circumferentially along the rotation axis. The pickup pad is connected to the receiving section, and the guide section and the receiving section are movably connected. The guide section includes at least a pickup section and a transfer section.

[0007] When the receiving section is movably connected to the picking section, the picking mechanism picks up the sheet product from the cutting device;

[0008] When the receiving section is connected to the transfer section, the picking mechanism transfers the sheet product to the distance adjustment device;

[0009] The distance between the pickup pads of at least two pickup mechanisms when the receiving part is connected to the pickup section is different from the distance between the pickup pads of at least two pickup mechanisms when the receiving part is connected to the transfer section.

[0010] In an optional implementation, the transfer section includes at least a first transfer section and a second transfer section, wherein the distance between the pickup pads of at least two pickup mechanisms when the receiving part is connected to the first transfer section is different from the distance between the pickup pads of at least two pickup mechanisms when the receiving part is connected to the second transfer section.

[0011] In an optional embodiment, the guide portion is adjustable along the circumferential direction of the rotation axis. In the adjustable state, the circumferential position of the guide portion is adjustable, and the adjustment range of the circumferential position of the guide portion is such that when the picking mechanism transfers the sheet product to the distance adjustment device, the receiving portion is connected to the first transfer section or the second transfer section.

[0012] In an optional implementation, the length of the picking segment is not less than the distance between the first transfer segment and the second transfer segment.

[0013] In an optional embodiment, when the receiving part is connected to the first transfer section, the relative positions between the pickup pads of at least two pickup mechanisms remain fixed; when the receiving part is connected to the second transfer section, the relative positions between the pickup pads of at least two pickup mechanisms remain fixed.

[0014] In an optional implementation, when the receiving part is connected to the picking section, the relative positions between the picking pads of at least two picking mechanisms remain fixed.

[0015] In an optional implementation, a transition segment is provided between the pickup segment and the transfer segment, the transition segment connects the pickup segment and the transfer segment, and the connection between the pickup segment and the transition segment closes in the circumferential direction.

[0016] In an optional embodiment, at least two guides are provided, the number of guides is the same as the number of pickup mechanisms, and each group of pickup mechanisms is corresponding to one guide, with at least two guides distributed along the axial direction of the rotation axis.

[0017] In an optional implementation, two guide sections are provided, and the two guide sections are arranged symmetrically on the left and right.

[0018] In an optional embodiment, the guide portion is provided on the circumferential surface of the cam, and the guide portion is a convex rail or groove on the circumferential surface of the cam.

[0019] The distance adjustment system provided by the present invention includes a separation device that picks up groups of sheet products from a cutting device and adjusts the distance between each group of sheet products. The sheet products are then transferred to the distance adjustment device, which can automatically adjust the distance between multiple groups of sheet products.

[0020] The separation device uses multiple rotating pickup mechanisms to transport sheet products between the cutting device and the distance adjustment device. A guide unit adjusts the distance between the multiple pickup mechanisms during their rotation, thereby achieving the adjustment of the distance between the multiple sheet products.

[0021] The guide section can use the pickup section and the transfer section to move the pickup pad of the pickup mechanism axially on the rotating shaft, thereby adjusting the distance between multiple pickup mechanisms. No additional drive or control methods are required. It can be achieved simply by using the connection structure between the guide section and the receiving part of the pickup pad. The structure is simple, reliable and stable. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the distance adjustment system provided by the present invention;

[0024] Figure 2 This is one of the overall structural schematic diagrams of the separation device provided by the present invention;

[0025] Figure 3 This is the second schematic diagram of the overall structure of the separation device provided by the present invention;

[0026] Figure 4 A schematic diagram of the overall structure of the cam in the separation device provided by the present invention;

[0027] Figure 5 One of the schematic diagrams showing the unfolded cam surface of the separation device provided by the present invention;

[0028] Figure 6 A partial structural schematic diagram of the separation device provided by the present invention;

[0029] Figure 7 This is one of the application state diagrams of the distance adjustment system provided by the present invention;

[0030] Figure 8 This is the second schematic diagram of the application state of the distance adjustment system provided by the present invention;

[0031] Figure 9 A second schematic diagram of the unfolded cam surface of the separation device provided by the present invention;

[0032] Figure 10 This is the third schematic diagram of the application state of the distance adjustment system provided by the present invention;

[0033] Figure 11 The third schematic diagram of the unfolded cam surface of the separation device provided by the present invention;

[0034] Figure 12 The fourth schematic diagram illustrates the application state of the distance adjustment system provided by this invention.

[0035] Icons: 100-Separation device; 110-Pick-up mechanism; 111-Pick-up pad; 112-Suction pipe; 113-Air distribution plate; 114-Main air pipe; 115-Receiving part; 120-Cam; 121-Guide part; 122-Pick-up section; 123-First transfer section; 124-Second transfer section; 125-Transition section; 126-Adjusting device; 131-Drive shaft; 132-Connecting frame; 133-Slider support plate; 134-Slider; 200-Cutting device; 210-First roller; 220-Second roller; 300-Gap adjustment device; 400-Sheet product; 500-Strip product. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] "MD direction" and "CD direction" refer to the flow direction (MD direction) and the width direction (CD direction) orthogonal to it in the manufacturing equipment.

[0043] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0044] This invention provides a distance adjustment system, such as... Figure 1 As shown, it includes a separation device 100, a cutting device 200, and a distance adjustment device 300.

[0045] The cutting device 200 is used to cut two adjacent sets of sheet products 400 from a continuous strip product 500. Each set of sheet products 400 consists of multiple sheet products 400 arranged with each other. The two sets of sheet products 400 are only the specific number of sets of sheet products 400 provided in this embodiment, and are only for illustrative purposes. In other embodiments, the sheet product 400 can also be cut into multiple sets of sheet products 400, such as three sets of sheet products 400.

[0046] Cutting device 200 Figure 1 As shown, the device may include a first roller 210 and a second roller 220. When the first roller 210 and the second roller 220 rotate, they cut the strip product 500 to form a sheet product 400. The arrows in the figure indicate the rotation directions of the first roller 210 and the second roller 220, respectively.

[0047] like Figure 1As shown, after the cutting device 200 cuts the strip product 500, the second roller 220 continues to drive the strip product 500 to move. The contact point between the second roller 220 and the separating device 100 constitutes the pickup point. The separating device 100 picks up the sheet product 400 at the pickup point. Then, the separating device 100 drives the sheet product 400 to move. During the movement, the distance between the two sets of sheet products 400 is adjusted.

[0048] like Figure 1 As shown, the contact point between the separating device 100 and the adjusting device 300 constitutes the transfer point. At the transfer point, the separating device 100 transfers the two groups of sheet products 400, whose spacing has been adjusted, to the adjusting device 300. The adjusting device 300 receives the sheet products 400 from the separating device 100 and adjusts the distance between adjacent sheet products 400 in each group. The adjusting device 300 adjusts the distance between adjacent sheet products 400 in each group to the required distance, which is the distance along the movement direction or flow direction of the adjusting device 300.

[0049] The distance adjustment system provided in this embodiment of the invention includes a separation device 100 that picks up groups of sheet products 400 from a cutting device 200 and adjusts the distance between each group of sheet products 400. Then, the sheet products 400 are transferred to the distance adjustment device 300, which can automatically adjust the distance between multiple groups of sheet products 400.

[0050] like Figure 2 and Figure 3 As shown, the separation device 100 includes at least two sets of pickup mechanisms 110. The number of pickup mechanisms 110 is the same as the number of sheet products 400, and each set of pickup mechanisms 110 is corresponding to a set of sheet products 400. The pickup mechanisms 110 are rotatably arranged along the rotation axis. Each set of pickup mechanisms 110 includes at least two pickup pads 111, and the pickup pads 111 are configured to be movable along the axial direction of the rotation axis.

[0051] The rotation axis here refers to the virtual rotation axis of the pickup mechanism 110. Its purpose is to describe the rotation position and rotation form of the pickup mechanism 110, rather than specifically referring to a physical rotation axis.

[0052] The separation device 100 uses multiple sets of rotating pickup mechanisms 110 to transport sheet products 400 between the cutting device 200 and the distance adjustment device 300. The guide part 121 adjusts the distance between the multiple sets of pickup mechanisms 110 during the rotation of the pickup mechanism 110, thereby realizing the adjustment of the distance between the multiple sets of sheet products 400.

[0053] like Figure 4 and Figure 5As shown, the separation device 100 also includes a guide section 121, which is arranged circumferentially along the rotation axis. The pickup pad 111 is connected to the receiving section 115. The guide section 121 and the receiving section 115 are movably connected. The guide section 121 includes at least a pickup section 122 and a transfer section. When the receiving section 115 is movably connected to the pickup section 122, the pickup mechanism 110 picks up the sheet product 400 from the cutting device 200. When the receiving section 115 is movably connected to the transfer section, the pickup mechanism 110 transfers the sheet product 400 to the distance adjustment device 300. The distance between the pickup pads 111 of at least two sets of pickup mechanisms 110 when the receiving section 115 is connected to the pickup section 122 is different from the distance between the pickup pads 111 of at least two sets of pickup mechanisms 110 when the receiving section 115 is connected to the transfer section.

[0054] The guide section 121 can move the pickup pad 111 of the pickup mechanism 110 axially along the rotation axis by using the pickup section 122 and the transfer section, thereby adjusting the distance between multiple pickup mechanisms 110. No additional driving or control methods are required. It can be achieved simply by using the connection structure between the guide section 121 and the receiving section 115 of the pickup pad 111. The structure is simple, reliable and stable.

[0055] Figure 7 and Figure 8 This is a schematic diagram illustrating the application state of the distance adjustment system provided by the present invention. Figure 7 and Figure 8 On the left is strip product 500. After being cut by cutting device 200, strip product 500 is first formed into multiple sheet products 400. Then, sheet products 400 are received by separating device 100. Separating device 100 separates sheet products 400 to the required distance. After receiving sheet products 400, adjusting device 300 adjusts sheet products 400 to the required distance along the flow direction.

[0056] In some embodiments, such as Figure 4 and Figure 5 As shown, the transfer section includes at least a first transfer section 123 and a second transfer section 124. The distance between the pickup pads 111 of at least two sets of pickup mechanisms 110 when the receiving part 115 is connected to the first transfer section 123 is different from the distance between the pickup pads 111 of at least two sets of pickup mechanisms 110 when the receiving part 115 is connected to the second transfer section 124. Figure 4 This is a schematic diagram of the overall structure of the cam 120 in the separation device 100 provided by the present invention. Figure 5 A schematic diagram showing the unfolded surface of the cam 120 of the separation device 100 provided by the present invention. Figure 4 and Figure 5In this configuration, two guide portions 121 are distributed axially along the rotation axis, and are arranged symmetrically on the left and right sides. Thus, the transfer segments are also symmetrically arranged, with the first transfer segment 123 and the second transfer segment 124 also exhibiting symmetrical arrangement. Figure 5 As shown, the distance between the two first transfer segments 123 and the distance between the two second transfer segments 124 are different. When the receiving part 115 is connected to the first transfer segment 123, the distance between the pickup pads 111 of at least two sets of pickup mechanisms 110 is different from the distance between the pickup pads 111 of at least two sets of pickup mechanisms 110 when the receiving part 115 is connected to the second transfer segment 124.

[0057] The first transfer segment 123 and the second transfer segment 124 correspond to different spacings between the pickup mechanisms 110. Therefore, the separation device 100 can adjust the width between different pickup mechanisms 110, which means it can adjust the spacing between multiple sets of sheet products 400 in various specifications. Furthermore, this can be achieved simply by setting the first transfer segment 123 and the second transfer segment 124 on the guide portion 121; the structure is simple, stable, and reliable.

[0058] The structure for adjusting the distance between the pickup mechanisms 110 using the first transfer segment 123 and the second transfer segment 124 is not limited to the specific structure described above. In other embodiments, when there are two sets of sheet products 400, only one guide section 121 can be provided. The guide section 121 corresponds to only one pickup mechanism 110. The first transfer segment 123 of the guide section 121 can drive the corresponding pickup mechanism 110 to move axially, while the other set of pickup mechanisms 110 remains fixed. In this way, the distance between the two sets of pickup mechanisms 110 can also be adjusted. In some other embodiments, two guide sections 121 are provided but not asymmetrically. The first transfer segments 123 of the two guide sections 121 respectively drive the corresponding pickup mechanism 110 to move a certain distance axially. As long as the two guide sections 121 do not cause the corresponding pickup mechanism 110 to move the same distance axially in the same direction, the distance between the two sets of pickup mechanisms 110 can be adjusted. In some other embodiments, such as Figure 9 and Figure 10 As shown, the device includes three sets of pickup mechanisms 110 and two guide parts 121. The two outer sets of pickup mechanisms 110 are each equipped with a corresponding guide part 121, while the middle set of pickup mechanisms 110 does not have a corresponding guide part 121. For example, a guide part that does not change the axial position of the pickup mechanism 110 can be provided, thereby enabling all three sets of pickup mechanisms 110 to change the distance between them, as shown in the image. Figure 10As shown. In some embodiments, the number of guides 121 is three, four, or more, the number of guides 121 is the same as the number of pickup mechanisms 110, and each group of pickup mechanisms 110 is correspondingly provided with one guide 121. The multiple guides 121 are distributed along the axial direction of the rotation axis. Thus, the guides 121 can drive the pickup pads 111 of the multiple pickup mechanisms 110 to move axially along the rotation axis, thereby adjusting the distance between the multiple pickup mechanisms 110. Figure 11 and Figure 12 As shown, the number of guide sections 121 is set to four, arranged symmetrically on the left and right. The distance between the first transfer segment 123 and the second transfer segment 124 of the four guide sections 121 is the same, so that the four sets of picking mechanisms 110 can all change the distance between each other, as shown in the figure. Figure 10 As shown.

[0059] In some embodiments, the guide portion 121 is adjustable along the circumferential direction of the rotation axis. In the adjusted state, the circumferential position of the guide portion 121 is adjustable. The adjustment range of the circumferential position of the guide portion 121 is such that when the pickup mechanism 110 transfers the sheet product 400 to the distance adjustment device 300, the receiving portion 115 is connected to the first transfer section 123 or the second transfer section 124.

[0060] By adjusting the circumferential position of the guide 121, the first transfer segment 123 and the second transfer segment 124 are respectively positioned corresponding to the transfer point. The first transfer segment 123 being positioned corresponding to the transfer point means that during the contact between the receiving part 115 of the pickup pad 111 in the pickup mechanism 110 and the first transfer segment 123, the pickup pad 111 moves to the transfer point. The second transfer segment 124 being positioned corresponding to the transfer point means that during the contact between the receiving part 115 of the pickup pad 111 in the pickup mechanism 110 and the second transfer segment 124, the pickup pad 111 moves to the transfer point. When the pickup pad 111 moves to the transfer point, the sheet product 400 can be transferred to the spacing adjustment device 300. By adjusting the circumferential position of the guide 121, the separation device 100 can adjust the spacing between the pickup mechanisms 110 to different sizes. This achieves a simple structure, requires no electrical means, fully utilizes the rotational movement of the pickup mechanism 110, and has good integration with other structures of the separation device 100.

[0061] The specific structure of the adjusting guide 121 in the circumferential position is not limited in this application; the following will be used as a reference. Figure 3 Let's take an example to illustrate a specific adjustment method. For example... Figure 3As shown, the guide portion 121 is disposed on the circumferential surface of the cam 120. A toothed portion is provided on one circumferential portion of the cam 120. The cam 120 is fixedly mounted on a structure, and its position remains unchanged during the rotation of the pickup mechanism 110. Specifically, a coupling can be used to mount the cam 120 onto the drive shaft 131 that drives the pickup mechanism 110, thus decoupling the drive shaft 131 and the cam 120. The cam 120 remains unchanged when the drive shaft 131 rotates. An adjusting device 126 is used to adjust the circumferential position of the cam 120. The adjusting device 126 includes a rotatable gear that meshes with the teeth of the cam 120. The adjusting device 126 may also include a handle, which drives the gear to rotate, thereby driving the cam 120 to rotate via the teeth.

[0062] In some embodiments, the length of the pickup segment 122 is not less than the distance between the first transfer segment 123 and the second transfer segment 124. When the guide portion 121 adjusts its position circumferentially, for example, by rotating a certain angle, so that the first transfer segment 123 is set to correspond with the transfer point to the second transfer segment 124 being set to correspond with the transfer point, during this process, the pickup segment 122 is always set to correspond with the pickup point, that is, when the receiving portion 115 is connected to the pickup segment 122, the pickup pad 111 picks up the sheet product 400 from the cutting device 200.

[0063] In some embodiments, such as Figure 5 As shown, when the receiving part 115 is connected to the first transfer section 123, the relative positions between the pickup pads 111 of at least two sets of pickup mechanisms 110 remain fixed; when the receiving part 115 is connected to the second transfer section 124, the relative positions between the pickup pads 111 of at least two sets of pickup mechanisms 110 remain fixed; when the receiving part 115 is connected to the pickup section 122, the relative positions between the pickup pads 111 of at least two sets of pickup mechanisms 110 remain fixed. Maintaining a fixed relative position between the pickup pads 111 of the pickup mechanisms 110 ensures that the pickup pads 111 maintain the same distance before and after contacting the separating device 100 and the adjusting device 300, making the pickup pads 111 more stable when picking up the sheet product 400 from the separating device 100 and transferring the sheet product 400 to the adjusting device 300.

[0064] In some embodiments, such as Figure 5As shown, a transition section 125 is provided between the pickup section 122 and the transfer section. The transition section 125 connects the pickup section 122 and the transfer section, and also connects the first transfer section 123 and the second transfer section 124. After the pickup section 122 and the transition section 125 are connected, they close in the circumferential direction. Using the transition section 125 for connection allows for smoother changes in the spacing of the pickup mechanism 110, facilitating better pickup and holding of the sheet product 400 by the pickup mechanism 110, and preventing the sheet product 400 from falling off the pickup mechanism 110 due to vibration or other reasons. The circumferential closeness of the pickup section 122 and the transition section 125 after connection ensures that the pickup mechanism 110 remains connected to the guide section 121 during rotation, allowing for continuous cyclical connection with the pickup section 122 and the transfer section.

[0065] The transition section 125 can be connected to the pickup section 122, the transfer section, the first transfer section 123, and the second transfer section 124 with rounded corners to further reduce the buffering when the receiving part 115 is transferred between different parts of the guide section 121.

[0066] After the guide section 121 unfolds, as Figure 5 As shown, the transition section 125 can be an inclined straight line, or it can be an arc, rounded corner, or other shapes, as long as it can guide the receiving part 115 to move axially along the rotation axis.

[0067] In some embodiments, such as Figure 4 and Figure 6 As shown, the guide portion 121 is provided on the circumferential surface of the cam 120. The guide portion 121 is either a convex rail or a groove on the circumferential surface of the cam 120. Whether the guide portion 121 is a convex rail or a groove, it can drive the pickup pad 111 to move relative to the rotation axis or maintain a constant distance.

[0068] In some embodiments, such as Figure 2 , Figure 3 and Figure 6 As shown, the pickup mechanism 110 is driven to rotate by a drive shaft 131. The pickup mechanism 110 includes pickup pads 111. Each pickup pad 111 is fixedly connected to a receiving part 115 and a slider 134. The slider 134 is slidably mounted on a slider support plate 133. The slider support plate 133 is mounted on a connecting frame 132. Both ends of the connecting frame 132 are respectively mounted on the drive shaft 131. When the drive shaft 131 rotates, the pickup pads 111 are driven to rotate through the connecting frame 132, the slider support plate 133, and the slider 134.

[0069] The cam 120 and the drive shaft 131 move relatively independently. For example, the cam 120 can be mounted on the drive shaft 131 via a coupling, so that the rotation of the drive shaft 131 will not affect the cam 120, and the cam 120 remains fixed. Thus, the drive shaft 131 can drive the pickup pad 111 to rotate relative to the cam 120. The guide portion 121 is a groove on the surface of the cam 120, and the receiving portion 115 is disposed in the groove of the guide portion 121. The receiving portion 115 can specifically be a roller.

[0070] The slider 134 slides on the slider support plate 133 in the axial direction of the drive shaft 131. Therefore, when the receiving part 115 moves in the axial direction of the rotation shaft, the slider 134 slides on the slider support plate 133, thereby driving the pickup pad 111 to move along the axial direction of the rotation shaft. The slider 134 and the slider support plate 133 constitute a sliding guide mechanism, which makes the pickup pad 111 more stable when moving along the axial direction of the rotation shaft.

[0071] In some embodiments, such as Figure 2 As shown, the pickup pad 111 is also connected to an air suction unit, which includes an air suction pipe 112 and an air path system. The air suction pipe 112 is connected to the pickup pad 111.

[0072] The air path system also includes a main air duct 114 and an air distribution plate 113. The main air duct 114 is used to connect to the air source, and multiple air distribution plates 113 are used to connect to the suction pipes 112 on different pickup pads 111. The suction pipes 112 are connected to the pickup pads 111. The air path system generates negative pressure. After passing through the main air duct 114, the air distribution plate 113 and the suction pipes 112, the negative pressure generates negative pressure on the surface of the pickup pads 111, thereby adhering to the sheet product 400.

[0073] The negative pressure generated by the suction unit is used to pick up the sheet product 400, which facilitates the picking up and releasing of the sheet product 400 and also helps to maintain the posture of the sheet product 400 on the pickup pad 111.

[0074] In some embodiments, each pickup mechanism 110 includes at least two pickup pads 111, and multiple pickup pads 111 can increase the separation and transfer efficiency of the separation device 100. In some embodiments, one pickup mechanism 110 has only one pickup pad 111, which simplifies the structure.

[0075] The sheet product 400 mentioned in the above embodiments can specifically refer to any one of sanitary products, medical products, and absorbent products.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A distance adjustment system for adjusting the distance between cut products in the flow direction and the width direction, characterized in that, The device includes a cutting device (200), a separating device (100), and a distance adjusting device (300). The cutting device (200) cuts a continuous strip product (500) into at least two sets of sheet products (400), each set of sheet products (400) including at least two sheet products (400). The separating device (100) picks up the sheet products (400) and adjusts the distance between each set of sheet products (400) in the width direction. The distance adjusting device (300) receives the sheet products (400) from the separating device (100) and adjusts the distance between adjacent sheet products (400) in each set of sheet products (400) in the flow direction. The separation device (100) includes at least two sets of pickup mechanisms (110), the number of pickup mechanisms (110) is the same as the number of sheets (400), and each set of pickup mechanisms (110) is corresponding to a set of sheets (400). The pickup mechanism (110) is rotatably arranged along the rotation axis, and the pickup mechanism (110) includes a pickup pad (111), which is configured to move axially along the rotation axis. The separation device (100) further includes a guide (121) which is arranged circumferentially along the rotation axis. The pickup pad (111) is connected to a receiving part (115). The guide (121) and the receiving part (115) are movably connected. The guide (121) includes at least a pickup section (122) and a transfer section. When the receiving part (115) is movably connected to the picking section (122), the picking mechanism (110) picks up the sheet product (400) from the cutting device (200); When the receiving part (115) is movably connected to the transfer section, the picking mechanism (110) transfers the sheet product (400) to the distance adjustment device (300); The distance between the pickup pads (111) of the at least two pickup mechanisms (110) when the receiving part (115) is connected to the pickup section (122) is different from the distance between the pickup pads (111) of the at least two pickup mechanisms (110) when the receiving part (115) is connected to the transfer section.

2. The distance adjustment system according to claim 1, characterized in that, The transfer segment includes at least a first transfer segment (123) and a second transfer segment (124). The distance between the pickup pads (111) of the at least two sets of pickup mechanisms (110) when the receiving part (115) is connected to the first transfer segment (123) is different from the distance between the pickup pads (111) of the at least two sets of pickup mechanisms (110) when the receiving part (115) is connected to the second transfer segment (124).

3. The distance adjustment system according to claim 2, characterized in that, The guide (121) is adjustable along the circumference of the rotation axis. In the adjusted state, the circumferential position of the guide (121) is adjustable. The adjustment range of the circumferential position of the guide (121) is such that when the picking mechanism (110) transfers the sheet product (400) to the distance adjustment device (300), the receiving part (115) is connected to the first transfer section (123) or the second transfer section (124).

4. The distance adjustment system according to claim 3, characterized in that, The length of the picking segment (122) is not less than the distance between the first transfer segment (123) and the second transfer segment (124).

5. The distance adjustment system according to claim 2, characterized in that, When the receiving part (115) is connected to the first transfer section (123), the relative position between the pickup pads (111) of the at least two sets of pickup mechanisms (110) remains fixed; when the receiving part (115) is connected to the second transfer section (124), the relative position between the pickup pads (111) of the at least two sets of pickup mechanisms (110) remains fixed.

6. The distance adjustment system according to claim 1, characterized in that, When the receiving part (115) is connected to the picking section (122), the relative position between the picking pads (111) of the at least two sets of picking mechanisms (110) remains fixed.

7. The distance adjustment system according to claim 1, characterized in that, A transition section (125) is provided between the pickup segment (122) and the transfer segment. The transition section (125) connects the pickup segment (122) and the transfer segment. After the pickup segment (122) and the transition section (125) are connected, they close in the circumferential direction.

8. The distance adjustment system according to claim 1, characterized in that, At least two guides (121) are provided, the number of guides (121) is the same as the number of pickup mechanisms (110), and each group of pickup mechanisms (110) is correspondingly provided with one guide (121). The at least two guides (121) are distributed along the axial direction of the rotation axis.

9. The distance adjustment system according to claim 8, characterized in that, There are two guide sections (121), which are arranged symmetrically on the left and right.

10. The distance adjustment system according to claim 1, characterized in that, The guide portion (121) is provided on the circumferential surface of the cam (120), and the guide portion (121) is a convex rail or groove on the circumferential surface of the cam (120).

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