Distance adjusting system

Abstract

The invention provides a distance adjusting system, and belongs to the technical field of sheet production equipment. The distance adjusting system comprises a cutting device, a separating device and a distance adjusting device, the cutting device cuts continuous strip products into at least two sets of sheet products, each set of sheet products at least comprises two sheet products, the separating device comprises at least two sets of picking mechanisms, the picking mechanisms are rotatably arranged along a rotating shaft, and the distance adjusting device is arranged on the separating device. Each group of picking mechanism comprises at least two picking pads; the separating device further comprises a guiding part, the guiding part is arranged in the circumferential direction of the rotating shaft, the picking pad is connected with a guided part, and the guiding part at least comprises a picking section and a transferring section. And the distance between the pickup pads of the at least two groups of pickup mechanisms when the guided part is connected with the pickup section is different from the distance between the pickup pads of the at least two groups of pickup mechanisms when the guided part is connected with the transfer section. The distance adjusting system provided by the invention can be used for automatically adjusting the distance among a plurality of groups of sheet products.

Description

Technical Field

[0001] The invention relates to the technical field of sheet material production equipment, in particular to a distance adjustment system. Background Art

[0002] In the automated production of sheet products, the continuous strip is cut into two adjacent groups of sheet products, and then the spacing between the two groups of sheet products needs to be adjusted to suit the subsequent production equipment or process. Sheet products may include sanitary products, clothing, medical products, etc. The automated production of sheet products includes packaging processing and other scenarios.

[0003] Existing technologies generally use manual methods, but on the one hand, this brings the risk of pollution, and on the other hand, there may be human errors; and the use of robots can ensure accuracy, but the efficiency is not high. Summary of the invention

[0004] In a first aspect, the present invention provides a distance adjustment system for adjusting the distance of the cut products in the process direction and the width direction, comprising a cutting device, a separating device and a distance adjustment device, wherein the cutting device cuts the continuous strip product into at least two groups of sheet products, each group of sheet products includes 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, and 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 process direction;

[0005] The separation device comprises at least two groups of picking mechanisms, the number of the picking mechanisms is the same as the number of the sheet product groups and each group of the picking mechanisms is arranged corresponding to a group of the sheet product, the picking mechanisms are rotatably arranged along the rotating shaft, the picking mechanisms comprise picking pads, and the picking pads are arranged to be movable along the axial direction of the rotating shaft;

[0006] The separation device further comprises a guide portion, which is arranged along the circumference of the rotating shaft, the pick-up pad is connected to the guided portion, the guide portion and the guided portion are movably connected, and the guide portion at least comprises a pick-up section and a transfer section;

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

[0008] When the guided portion is movably connected to the transfer section, the pick-up mechanism transfers the sheet product to the distance adjusting device;

[0009] The distance between the picking pads of at least two groups of picking mechanisms when the guided portion is connected to the picking section is different from the distance between the picking pads of at least two groups of picking mechanisms when the guided portion is connected to the transfer section.

[0010] In an optional embodiment, the transfer section includes at least a first transfer section and a second transfer section, and the distance between the picking pads of at least two groups of picking mechanisms when the guided part is connected to the first transfer section is different from the distance between the picking pads of at least two groups of picking mechanisms when the guided part is connected to the second transfer section.

[0011] In an optional embodiment, the guide portion is adjustably arranged along the circumference of the rotating shaft. In the adjusted 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 the guided portion is connected to the first transfer section or the second transfer section when the picking mechanism transfers the sheet product to the distance adjusting device.

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

[0013] In an optional embodiment, when the guided portion is connected to the first transfer section, the relative positions of the picking pads of at least two groups of picking mechanisms remain fixed; when the guided portion is connected to the second transfer section, the relative positions of the picking pads of at least two groups of picking mechanisms remain fixed.

[0014] In an optional embodiment, when the guided portion is connected to the picking-up section, the relative positions of the picking-up pads of at least two groups of picking-up mechanisms remain fixed.

[0015] In an optional embodiment, a transition section is provided between the picking-up section and the transfer section, and the transition section connects the picking-up section and the transfer section. After the picking-up section and the transition section are connected, they are closed in the circumferential direction.

[0016] In an optional embodiment, at least two guide parts are provided, the number of the guide parts is the same as the number of the picking mechanisms, and each group of picking mechanisms is provided corresponding to a guide part, and at least two guide parts are distributed along the axial direction of the rotating shaft.

[0017] In an optional embodiment, two guide portions are provided, and the two guide portions are symmetrically arranged 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 track or a groove on the circumferential surface of the cam.

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

[0020] The separation device uses multiple sets of rotating picking mechanisms to transport sheet products between the cutting device and the distance adjusting device, and uses a guide part to adjust the distance between the multiple sets of picking mechanisms during the rotation of the picking mechanisms, thereby achieving the adjustment of the distance between the multiple sets of sheet products.

[0021] The guide part can use the picking section and the transfer section to move the picking pad of the picking mechanism in the axial direction of the rotating shaft, thereby adjusting the distance between multiple groups of picking mechanisms. No additional driving or control methods are required. It can be achieved by utilizing the connection structure between the guide part and the guided part of the picking pad. The structure is simple, reliable and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the overall structure of the pitch adjustment system provided by the present invention;

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

[0025] Figure 3 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 of the separation device provided by the present invention;

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

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

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

[0030] Figure 8 The second schematic diagram of the application state of the pitch adjustment system provided by the present invention;

[0031] Fig. 9 The second structural schematic diagram of the cam surface of the separation device provided by the present invention is unfolded;

[0032] Fig.10 The third schematic diagram of the application state of the pitch adjustment system provided by the present invention;

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

[0034] Fig.12 This is the fourth schematic diagram of the application status of the distance adjustment system provided by the present invention.

[0035] Icons: 100-separation device; 110-picking mechanism; 111-picking pad; 112-suction pipe; 113-gas distribution plate; 114-main air duct; 115-receiving part; 120-cam; 121-guiding part; 122-picking section; 123-first transfer section; 124-second transfer section; 125-transition section; 126-adjusting device; 131-driving shaft; 132-connecting frame; 133-slider support plate; 134-slider; 200-cutting device; 210-first roller; 220-second roller; 300-distance adjusting device; 400-sheet product; 500-strip product. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] “MD direction” and “CD direction” refer to the flow direction (MD direction) in a manufacturing device and the width direction (CD direction) orthogonal thereto.

[0043] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0044] The embodiment of the present invention provides a distance adjustment system, such as Figure 1 As shown, it includes a separating device 100 , a cutting device 200 and a distance adjusting device 300 .

[0045] The cutting device 200 is used to cut two groups of sheet products 400 arranged adjacently from the continuous strip product 500, and each group of sheet products 400 is composed of a plurality of sheet products 400 arranged one another. The two groups of sheet products 400 are only the specific number of groups of sheet products 400 provided in this embodiment, and are only for the convenience of description. In other embodiments, the sheet product 400 can also be cut into multiple groups of sheet products 400, such as three groups of sheet products 400.

[0046] The cutting device 200 is as follows Figure 1 As shown, the first roller 210 and the second roller 220 may be included. When the first roller 210 and the second roller 220 rotate, the strip product 500 is cut to form a sheet product 400. Arrows are used in the figure to 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, and the contact point between the second roller 220 and the separation device 100 constitutes a picking point. The separation device 100 picks up the sheet product 400 at the picking point, and then the separation device 100 drives the sheet product 400 to move, and the distance between the two groups of sheet products 400 is adjusted during the movement.

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

[0049] The distance adjustment system provided in an embodiment of the present invention is configured with a separation device 100 to pick up grouped sheet products 400 from a cutting device 200, and adjust the distance between each group of sheet products 400, and then transfer the sheet products 400 to a distance adjustment device 300, so as to 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 groups of picking mechanisms 110, the number of groups of the picking mechanisms 110 is the same as the number of groups of sheet products 400 and each group of the picking mechanisms 110 is arranged corresponding to a group of sheet products 400, the picking mechanisms 110 are rotatably arranged along the rotating axis, and each group of the picking mechanisms 110 includes at least two picking pads 111, and the picking pads 111 are arranged to be movable along the axial direction of the rotating axis.

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

[0052] The separation device 100 uses a plurality of rotating picking mechanisms 110 to transport the sheet products 400 between the cutting device 200 and the distance adjustment device 300, and uses a guide portion 121 to adjust the distance between the plurality of picking mechanisms 110 during the rotation of the picking mechanisms 110, thereby achieving the adjustment of the distance between the plurality of sheet products 400.

[0053] like Figure 4 and Figure 5As shown, the separation device 100 also includes a guide portion 121, which is arranged along the circumference of the rotating shaft, the picking pad 111 is connected to the guided portion 115, the guide portion 121 and the guided portion 115 are movably connected, the guide portion 121 at least includes a picking section 122 and a transfer section, when the guided portion 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 guided portion 115 is movably connected to the transfer section, the picking mechanism 110 transfers the sheet product 400 to the distance adjusting device 300, when the guided portion 115 is connected to the picking section 122, the distance between the picking pads 111 of at least two groups of picking mechanisms 110 is different from the distance between the picking pads 111 of at least two groups of picking mechanisms 110 when the guided portion 115 is connected to the transfer section.

[0054] The guide portion 121 can utilize the pickup section 122 and the transfer section to move the pickup pad 111 of the pickup mechanism 110 in the axial direction of the rotating shaft, thereby adjusting the distance between multiple groups of pickup mechanisms 110. No additional driving or control methods are required. This can be achieved by utilizing the connection structure between the guide portion 121 and the guided portion 115 of the pickup pad 111. The structure is simple, reliable and stable.

[0055] Figure 7 and Figure 8 A schematic diagram of the application state of the distance adjustment system provided by the present invention, Figure 7 and Figure 8 On the middle left side is a strip product 500. After being cut by the cutting device 200, the strip product 500 is first formed into a plurality of sheet products 400. Subsequently, the sheet products 400 are received by the separating device 100. The separating device 100 separates the sheet products 400 to a desired distance. After the distance adjusting device 300 receives the sheet products 400, it adjusts the sheet products 400 to a desired distance along the process direction.

[0056] In some embodiments, Figure 4 and Figure 5 As shown, the transfer section includes at least a first transfer section 123 and a second transfer section 124, and the distance between the picking pads 111 of at least two groups of picking mechanisms 110 when the guided portion 115 is connected to the first transfer section 123 is different from the distance between the picking pads 111 of at least two groups of picking mechanisms 110 when the guided portion 115 is connected to the second transfer section 124. Figure 4 This is a schematic diagram of the overall structure of the cam 120 of the separation device 100 provided by the present invention. Figure 5 This is a schematic diagram of the structure of the cam 120 of the separation device 100 provided by the present invention. Figure 4 and Figure 5In the embodiment, the two guide portions 121 are distributed along the axial direction of the rotating shaft, and the two guide portions 121 are symmetrically arranged. In this way, the transfer section is also symmetrically arranged, and the first transfer section 123 and the second transfer section 124 are also symmetrically arranged. Figure 5 As shown, the distance between the two first transfer segments 123 is different from the distance between the two second transfer segments 124, and the distance between the picking pads 111 of at least two groups of picking mechanisms 110 when the guided portion 115 is connected to the first transfer segments 123 is different from the distance between the picking pads 111 of at least two groups of picking mechanisms 110 when the guided portion 115 is connected to the second transfer segments 124.

[0057] The first transfer section 123 and the second transfer section 124 correspond to different spacings between the picking mechanisms 110, so that the separation device 100 can adjust the widths between different picking mechanisms 110, that is, can adjust the spacings between multiple groups of sheet products 400 in various specifications. Moreover, only by setting the first transfer section 123 and the second transfer section 124 on the guide portion 121, it can be achieved only by structural setting, and the structure is simple, stable and reliable.

[0058] The structure for adjusting the distance between the picking mechanisms 110 by using the first transfer segment 123 and the second transfer segment 124 is not limited to the above-mentioned specific structure. In other embodiments, when there are two groups of sheet products 400, only one guide portion 121 may be provided, and the guide portion 121 is provided only corresponding to one picking mechanism 110. The first transfer segment 123 of the guide portion 121 may drive the corresponding picking mechanism 110 to move axially, and the other group of picking mechanisms 110 remains fixed. In this way, the distance between the two groups of picking mechanisms 110 may also be adjusted. In other embodiments, two guide portions 121 are provided but not symmetrically, and the first transfer segments 123 of the two guide portions 121 respectively drive the corresponding picking mechanisms 110 to move a certain distance in the axial direction. As long as the two guide portions 121 do not cause the corresponding picking mechanisms 110 to move the same distance in the axial direction, the distance between the two groups of picking mechanisms 110 may be adjusted. In other embodiments, such as Fig. 9 and Fig.10 As shown, three groups of picking mechanisms 110 are included, and two guide portions 121 are provided. The two outer groups of the three groups of picking mechanisms 110 are respectively provided corresponding to one guide portion 121, and the middle group of the three groups of picking mechanisms 110 is not provided with a corresponding guide portion 121. For example, a guide portion that does not change the axial position of the picking mechanism 110 can be provided, so that the three groups of picking mechanisms 110 can all complete the change of the distance between each other, and the effect is as follows: Fig.10As shown. In some embodiments, the number of guide portions 121 is three, four or more, the number of guide portions 121 is the same as the number of pickup mechanisms 110, and each group of pickup mechanisms 110 is provided with a corresponding guide portion 121, and the multiple guide portions 121 are distributed along the axial direction of the rotation axis. Thus, the guide portion 121 can drive the pickup pads 111 of the multiple pickup mechanisms 110 to move along the axial direction of the rotation axis, thereby adjusting the distance between the multiple pickup mechanisms 110. Fig.11 and Fig.12 As shown, the number of guide parts 121 is set to four, which are symmetrically arranged on the left and right. The distances between the first transfer sections 123 and the second transfer sections 124 of the four guide parts 121 are the same, so that the four groups of picking mechanisms 110 can all complete the change of the distances between each other, and the effect is as follows: Fig.10 shown.

[0059] In some embodiments, the guide portion 121 is adjustably arranged along the circumference of the rotating shaft. In the adjusted state, the circumferential position of the guide portion 121 is adjustable, and the adjustment range of the circumferential position of the guide portion 121 is such that when the picking mechanism 110 transfers the sheet product 400 to the distance adjustment device 300, the guided 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 portion 121, the first transfer section 123 and the second transfer section 124 are respectively set corresponding to the transfer point. The first transfer section 123 is set corresponding to the transfer point, which means that in the process of the guided portion 115 of the pickup pad 111 in the pickup mechanism 110 contacting the first transfer section 123, the pickup pad 111 moves to the transfer point. The second transfer section 124 is set corresponding to the transfer point, which means that in the process of the guided portion 115 of the pickup pad 111 in the pickup mechanism 110 contacting the second transfer section 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 distance adjustment device 300. By adjusting the circumferential position of the guide portion 121, the separation device 100 adjusts the spacing between the pickup mechanisms 110 to different sizes, and the structure is simple, no electrical means are required, and the characteristic that the pickup mechanism 110 can rotate is fully utilized, and the combination with other structures of the separation device 100 is good.

[0061] The specific structure of the circumferential position of the adjusting guide portion 121 is not limited in this application. Figure 3 Take the following as an example to illustrate a specific adjustment method. Figure 3As shown, the guide portion 121 is provided on the circumference of the cam 120, a circumference of the cam 120 is provided with a tooth portion, the cam 120 is fixed on a structure, and the position of the cam 120 itself remains unchanged during the rotation of the pickup mechanism 110. Specifically, a coupling can be used to install the cam 120 on the drive shaft 131 that drives the pickup mechanism 110 to rotate, so that the drive shaft 131 and the cam 120 are decoupled, and the cam 120 remains unchanged when the drive shaft 131 rotates. The circumferential position of the cam 120 is adjusted by an adjustment device 126, and the adjustment device 126 includes a rotatable gear, and the gear cooperates with the tooth portion of the cam 120. The adjustment device 126 can also include a handle, and the handle drives the gear to rotate, and then drives the cam 120 to rotate through the tooth portion.

[0062] In some embodiments, the length of the picking section 122 is not less than the distance between the first transfer section 123 and the second transfer section 124. When the guide portion 121 is adjusted in the circumferential direction, for example, rotated by a certain angle, so that the first transfer section 123 is changed from being set corresponding to the transfer point to being set corresponding to the second transfer section 124, in this process, the picking section 122 always sets the picking point correspondingly, that is, when the guided portion 115 is connected to the picking section 122, the picking pad 111 picks up the sheet product 400 from the cutting device 200.

[0063] In some embodiments, Figure 5 As shown, when the guided portion 115 is connected to the first transfer section 123, the relative positions between the pick-up pads 111 of at least two groups of pick-up mechanisms 110 remain fixed; when the guided portion 115 is connected to the second transfer section 124, the relative positions between the pick-up pads 111 of at least two groups of pick-up mechanisms 110 remain fixed; when the guided portion 115 is connected to the pick-up section 122, the relative positions between the pick-up pads 111 of at least two groups of pick-up mechanisms 110 remain fixed. The relative positions between the pick-up pads 111 of the pick-up mechanism 110 remain fixed, and the pick-up pads 111 can maintain the same distance before and after they contact the separation device 100 and the distance adjustment device 300, so that the pick-up pads 111 can be more stable when picking up the sheet product 400 from the separation device 100 and transferring the sheet product 400 to the distance adjustment device 300.

[0064] In some embodiments, Figure 5As shown, a transition section 125 is provided between the picking section 122 and the transfer section, and the transition section 125 connects the picking section 122 and the transfer section, and the transition section 125 connects the first transfer section 123 and the second transfer section 124. After the picking section 122 and the transition section 125 are connected, they are closed in the circumferential direction. The use of the transition section 125 for connection can make the spacing change of the picking mechanism 110 more stable, and it is more convenient for the picking mechanism 110 to pick up and hold the sheet product 400, and prevent the sheet product 400 from falling off the picking mechanism 110 due to vibration and other reasons. After the picking section 122 and the transition section 125 are connected, they are closed in the circumferential direction, so that the picking mechanism 110 is always connected to the guide portion 121 during the rotation process, and can be cyclically and continuously connected to the picking section 122 and the transfer section.

[0065] Rounded corners may also be provided at the connection between the transition section 125 and the picking section 122 , the transfer section, the first transfer section 123 , and the second transfer section 124 to further reduce the buffering when the guided portion 115 is transferred between different parts of the guide portion 121 .

[0066] After the guide portion 121 is unfolded, Figure 5 As shown, the transition section 125 can be an inclined straight line as a whole, or can be an arc, rounded or other shape, as long as it can guide the guided portion 115 to move axially along the rotation axis.

[0067] In some embodiments, Figure 4 and Figure 6 As shown, the guide portion 121 is disposed on the circumference of the cam 120, and the guide portion 121 is a convex track or a groove on the circumference of the cam 120. Whether the guide portion 121 is a convex track or a groove, it can drive the pickup pad 111 to move relatively along the axial direction of the rotating shaft or keep the distance unchanged.

[0068] In some embodiments, Figure 2 , Figure 3 and Figure 6 As shown, a driving shaft 131 is used to drive the picking mechanism 110 to rotate. The picking mechanism 110 includes a picking pad 111. Each picking pad 111 is fixedly connected to a guided portion 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 driving shaft 131. The driving shaft 131 rotates to drive the picking pad 111 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 through a coupling so that the rotation of the drive shaft 131 does not affect the cam 120. The cam 120 always remains fixed, so that the drive shaft 131 can drive the pickup pad 111 and the cam 120 to rotate relative to each other. The guide portion 121 is a groove on the surface of the cam 120, and the guided portion 115 is arranged in the groove of the guide portion 121. The guided portion 115 can be a roller.

[0070] The sliding direction of the slider 134 on the slider support plate 133 is the axial direction of the driving shaft 131. Therefore, when the guided portion 115 moves in the axial direction of the rotating 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 rotating shaft. The slider 134 and the slider support plate 133 form a sliding guide mechanism, which can make the pickup pad 111 more stable when moving along the axial direction of the rotating shaft.

[0071] In some embodiments, 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, and the air suction pipe 112 is connected to the pickup pad 111 .

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

[0073] The negative pressure generated by the suction unit is used to suck the sheet product 400 , which facilitates the suction and release of the sheet product 400 and also facilitates maintaining the posture of the sheet product 400 on the pickup pad 111 .

[0074] In some embodiments, each set of picking mechanisms 110 includes at least two picking pads 111. Multiple picking pads 111 can increase the separation and transfer efficiency of the separation device 100. In some embodiments, one picking mechanism 110 has only one picking pad 111, which has a simpler structure.

[0075] The sheet product 400 mentioned in the above embodiment may 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, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements 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 of the cut product in the process direction and width direction, characterized in that: The invention comprises a cutting device (200), a separating device (100) and a distance adjusting device (300), wherein the cutting device (200) cuts a continuous strip product (500) into at least two groups of sheet products (400), each group of sheet products (400) comprises at least two sheet products (400), the separating device (100) picks up the sheet products (400) and adjusts the distance between each group of sheet products (400) in the width direction, and 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 group of sheet products (400) in the process direction; The separation device (100) comprises at least two groups of picking mechanisms (110), the number of the picking mechanisms (110) is the same as the number of the sheet products (400), and each group of the picking mechanisms (110) is arranged corresponding to a group of sheet products (400), the picking mechanisms (110) are rotatably arranged along a rotation axis, the picking mechanisms (110) comprise picking pads (111), and the picking pads (111) are arranged to be movable along the axial direction of the rotation axis; The separation device (100) further comprises a guide portion (121), the guide portion (121) being arranged along the circumference of the rotating shaft, the pick-up pad (111) being connected to a guided portion (115), the guide portion (121) being movably connected to the guided portion (115), and the guide portion (121) at least comprising a pick-up section (122) and a transfer section; When the guided portion (115) is movably connected to the picking-up section (122), the picking-up mechanism (110) picks up the sheet product (400) from the cutting device (200); When the guided portion (115) is movably connected to the transfer section, the picking mechanism (110) transfers the sheet product (400) to the distance adjusting device (300); The distance between the pickup pads (111) of the at least two groups of pickup mechanisms (110) when the guided portion (115) is connected to the pickup section (122) is different from the distance between the pickup pads (111) of the at least two groups of pickup mechanisms (110) when the guided portion (115) is connected to the transfer section.

2. The pitch adjustment system according to claim 1, characterized in that: The transfer section at least comprises a first transfer section (123) and a second transfer section (124); when the guided portion (115) is connected to the first transfer section (123), the distance between the pick-up pads (111) of the at least two groups of pick-up mechanisms (110) is different from the distance between the pick-up pads (111) of the at least two groups of pick-up mechanisms (110) when the guided portion (115) is connected to the second transfer section (124).

3. The pitch adjustment system according to claim 2, characterized in that: The guide portion (121) is adjustably arranged along the circumference of the rotating shaft. In an 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 picking mechanism (110) transfers the sheet product (400) to the distance adjustment device (300), the guided portion (115) is connected to the first transfer section (123) or the second transfer section (124).

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

5. The pitch adjustment system according to claim 2, characterized in that: When the guided portion (115) is connected to the first transfer section (123), the relative positions of the pickup pads (111) of the at least two groups of pickup mechanisms (110) remain fixed; when the guided portion (115) is connected to the second transfer section (124), the relative positions of the pickup pads (111) of the at least two groups of pickup mechanisms (110) remain fixed.

6. The pitch adjustment system according to claim 1, characterized in that: When the guided portion (115) is connected to the picking section (122), the relative positions between the picking pads (111) of the at least two groups of picking mechanisms (110) remain fixed.

7. The pitch adjustment system according to claim 1, characterized in that: A transition section (125) is provided between the picking-up section (122) and the transfer section, and the transition section (125) connects the picking-up section (122) and the transfer section. After the picking-up section (122) and the transition section (125) are connected, they are closed in the circumferential direction.

8. The pitch adjustment system according to claim 1, characterized in that: At least two guide parts (121) are provided, the number of the guide parts (121) is the same as the number of the picking mechanisms (110), and each group of picking mechanisms (110) is provided corresponding to a guide part (121), and the at least two guide parts (121) are distributed along the axial direction of the rotating shaft.

9. The distance adjustment system according to claim 8, characterized in that: The guide parts (121) are provided with two, and the two guide parts (121) are arranged symmetrically on the left and right.

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

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