Lifting mechanism for paper stack turnover

Abstract

The utility model embodiment provides a kind of lifting mechanism for paper stack turnover, it includes first lifting moving frame, with opposite first end and second end;Second lifting moving frame, with opposite third end and fourth end;First transmission wheel, including two first sprocket and first chain, first chain is connected with two first sprocket transmission, first end and third end are fixedly connected in first chain respectively;Second transmission wheel, including two second sprocket and second chain, second chain is connected with two second sprocket transmission, second end and fourth end are fixedly connected in second chain respectively;Driving assembly, with driving end, the driving end of driving assembly is fixedly connected in second lifting moving frame.This embodiment can solve the problem that existing turnover clamping device cannot realize accurate synchronous lifting, form the clamping effect of stable to paper stack, can reduce the condition that paper stack deviates, loosens when turning over, improve the efficiency of paper stack turnover operation.

Description

Technical Field

[0001] This utility model relates to the field of packaging production technology, and in particular to a lifting mechanism for flipping paper stacks. Background Technology

[0002] In the production and processing of corrugated cardboard, cartons, and other similar products, paper stacks often need to be flipped due to process requirements. The clamping mechanism of the flipping device needs to achieve stable clamping and positioning of the paper stack through the synchronous lifting of the upper and lower moving frames to ensure smooth flipping. However, existing paper stack flipping devices suffer from the problem that the two ends of the flipping clamping device cannot achieve precise synchronous lifting. The lifting speeds on both sides are different, or the lifting strokes at the front and rear ends are misaligned. This results in uneven distribution of clamping force on the paper stack by the upper and lower moving frames, making it difficult to form a stable clamping effect. Furthermore, it can easily cause problems such as paper stack shifting and loosening during flipping, reducing the efficiency and stability of the paper stack flipping operation. Utility Model Content

[0003] Therefore, in order to overcome at least some of the defects and deficiencies in the prior art, this utility model provides a lifting mechanism for flipping paper stacks.

[0004] Specifically, the lifting mechanism for paper stack flipping provided in this embodiment of the present invention includes: a first lifting moving frame having a first end and a second end opposite to each other in a first direction; a second lifting moving frame having a third end and a fourth end opposite to each other in the first direction, the first lifting moving frame and the second lifting moving frame being spaced apart in a second direction, the first direction being perpendicular to the second direction; a first transmission wheel including two first sprockets and a first chain, the two first sprockets being spaced apart in the second direction, the first chain being drivingly connected to the two first sprockets, the first end and the third end being fixedly connected to the first chain respectively; a second transmission wheel including two second sprockets and a second chain, the two second sprockets being spaced apart in the second direction, the second chain being drivingly connected to the two second sprockets, the second end and the fourth end being fixedly connected to the second chain respectively; and a driving assembly having a driving end, the driving end of the driving assembly being fixedly connected to the second lifting moving frame.

[0005] In one embodiment of the present invention, the driving assembly includes: a first driving member having a driving end, the driving end of the first driving member being fixedly connected to the second lifting and moving frame; and a second driving member having a driving end, the driving end of the second driving member being fixedly connected to the second lifting and moving frame.

[0006] In one embodiment of the present invention, the second lifting and moving frame includes: a lower main frame and a first longitudinal rod and a second longitudinal rod connected to both ends of the lower main frame; the first longitudinal rod is fixedly connected to the first chain, the driving end of the first driving member is fixedly connected to the first longitudinal rod, the second longitudinal rod is fixedly connected to the second chain, and the driving end of the second driving member is fixedly connected to the second longitudinal rod.

[0007] In one embodiment of the present invention, the lifting mechanism for flipping paper stacks further includes: a first transmission connector fixedly connected between the first longitudinal rod and the first chain; and a second transmission connector fixedly connected between the second longitudinal rod and the second chain.

[0008] In one embodiment of this utility model, the number of the first transmission wheels is multiple sets, and the number of the first transmission connecting members corresponds to the number of sets of the first transmission wheels; the number of the second transmission wheels is multiple sets, and the number of the second transmission connecting members corresponds to the number of sets of the second transmission wheels.

[0009] In one embodiment of this utility model, the first driving member and the second driving member are misaligned.

[0010] In one embodiment of this utility model, the lifting mechanism for flipping paper stacks further includes a flipping frame, the flipping frame including a first support plate and a second support plate disposed opposite to each other; the first driving member also has a fixed end, the fixed end of the first driving member being fixedly connected to the inner sidewall of the second support plate, the second driving member also has a fixed end, the fixed end of the second driving member being fixedly connected to the inner sidewall of the first support plate; the first support plate and the second support plate have a first side and a second side opposite to each other in a third direction, the third direction being perpendicular to the first direction and the second direction respectively; the first driving member is disposed near the first side, and the second driving member is disposed near the second side.

[0011] In one embodiment of the present invention, the lifting mechanism for flipping paper stacks further includes a flipping frame, a guide rail is provided on the side wall of the flipping frame, and the guide rail extends along the second direction; the lifting mechanism for flipping paper stacks further includes: a plurality of guide moving parts, respectively fixed at the first end, the second end, the third end and the fourth end, the guide moving parts are arranged corresponding to the guide rail, and the guide moving parts reciprocate along the guide rail.

[0012] In one embodiment of this utility model, the guiding moving member is a guide wheel, and the guide wheel rolls in cooperation with the guide rail.

[0013] In one embodiment of this utility model, the guiding moving member is a guide block, and the guide block slides in conjunction with the guide rail.

[0014] As can be seen from the above, this utility model embodiment, by setting a first transmission wheel and a second transmission wheel in the lifting mechanism, and by connecting a first chain to two first sprockets and a second chain to two second sprockets, and by fixing the first end of the first lifting frame and the third end of the second lifting frame to the first end of the first lifting frame and the third end of the second lifting frame to the second end of the second lifting frame, and fixing the second end of the first lifting frame and the fourth end of the second lifting frame to the second end of the second lifting frame, can achieve precise synchronous lifting of the two ends of the first lifting frame and the second lifting frame, solving the problem that existing flipping clamping devices cannot achieve precise synchronous lifting, achieving uniform distribution of clamping force on the paper stack, forming a stable clamping effect, reducing the offset and loosening of the paper stack during flipping, and improving the efficiency and stability of the paper stack flipping operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an overall structural diagram of a lifting mechanism for flipping paper stacks, provided for an embodiment of this utility model.

[0017] Figure 2 for Figure 1 A side view of the lifting mechanism used for flipping paper stacks.

[0018] Figure 3 This is an overall structural diagram of another lifting mechanism for flipping paper stacks, provided as an embodiment of the present invention.

[0019] Figure 4 for Figure 3 A magnified view of a portion of region A in the middle.

[0020] Figure 5 for Figure 3 Another structural diagram of the lifting mechanism used for flipping paper stacks.

[0021] Figure 6 for Figure 5 A magnified view of a portion of region B in the middle.

[0022] [Explanation of Labels in the Attached Image] 10: Lifting mechanism for paper stack flipping; 100: Flipping frame; 110: First support plate; 120: Second support plate; 122: Guide rail; 130: Top plate frame; 140: Bottom plate frame; 150: First side; 160: Second side; 310: First lifting moving frame; 311: First end; 312: Second end; 313: Upper main frame; 3131: Third crossbar; 3132: Fourth crossbar; 314: Third longitudinal bar; 315: Fourth longitudinal bar; 320: Second lifting moving frame; 321: Third End; 322: Fourth end; 323: Lower main frame; 3231: First crossbar; 3232: Second crossbar; 324: First longitudinal bar; 325: Second longitudinal bar; 330: First transmission wheel; 331: First sprocket; 332: First chain; 340: Second transmission wheel; 341: Second sprocket; 342: Second chain; 350: First transmission connector; 360: Second transmission connector; 370: Drive assembly; 371: First drive component; 372: Second drive component; 390: Guide moving component. Detailed Implementation

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

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, top, bottom) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] In this embodiment of the invention, the use of terms such as "first" and "second" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0026] See Figure 1 and Figure 2 This utility model embodiment provides a lifting mechanism 10 for flipping paper stacks. The lifting mechanism 10 for flipping paper stacks includes, for example, a first lifting moving frame 310, a second lifting moving frame 320, a first transmission wheel 330, a second transmission wheel 340, and a drive assembly 370.

[0027] Reference Figure 3 The lifting mechanism 10 for flipping paper stacks also includes, for example, a flipping frame 100. The flipping frame 100 is, for example, a cuboid frame structure, which specifically includes a first support plate 110 and a second support plate 120 arranged opposite to each other, as well as a top plate frame 130 and a bottom plate frame 140 connected between the first support plate 110 and the second support plate 120. The first support plate 110, the bottom plate frame 140, the second support plate 120, and the top plate frame 130 together form a receiving cavity for accommodating paper stacks. The flipping frame 100 is used to provide an installation reference for the other components of the lifting mechanism 10.

[0028] The first drive wheel 330 includes, for example, two first sprockets 331 and a first chain 332, and the second drive wheel 340 includes, for example, two second sprockets 341 and a second chain 342. The two first sprockets 331 are spaced apart in a second direction, and the two second sprockets 341 are spaced apart in a second direction. The first lifting frame 310 is, for example, a frame structure made of metal, located near the top plate frame 130 of the tilting frame 100, and has a first end 311 and a second end 312 opposite each other in a first direction. The two ends are fixed to the first chain 332 and the second chain 342, for example, by bolts. The structure of the second lifting frame 320 is symmetrical to that of the first lifting frame 310. The second lifting frame 320 is, for example, a frame structure made of metal, located near the bottom plate frame 140 of the tilting frame 100, and has a third end 321 and a fourth end 322 opposite each other in a first direction. The two ends are fixed to the first chain 332 and the second chain 342, for example, by bolts. In this embodiment, the first chain 332 and the second chain 342 mesh with the first sprocket 331 and the second sprocket 341 for transmission. The first lifting frame 310 and the second lifting frame 320 can slide synchronously in opposite directions or in opposite directions, providing stable action for clamping and releasing the paper stack. Figure 1 The first direction is, for example, the length direction of the first lifting and moving frame 310 and the second lifting and moving frame 320, and the second direction is, for example, the vertical direction perpendicular to the first direction.

[0029] The first sprocket 331 and the second sprocket 341 are, for example, wheels made of metal with interlocking teeth, used to mesh with the first chain 332 and the second chain 342. The first sprocket 331 is connected to the second support plate 120 of the tilting frame 100 via a shaft and a bearing seat, for example. The second sprocket 341 is connected to the tilting frame 100 via a shaft and a bearing seat, for example. The first support plate 110 is connected, and the first chain 332 and the second chain 342 are, for example, ring chains. The first chain 332 and the second chain 342 are respectively engaged with the first sprocket 331 and the second sprocket 341. The first end 311 of the first lifting frame 310 and the third end 321 of the second lifting frame 320 are respectively fixedly connected to the first chain 332 (specifically, for example, the upper chain link is connected to the first lifting frame 310 and the lower chain link is connected to the second lifting frame 320). The specific connection position can be adapted to the synchronous clamping function of the lifting mechanism 10 used for paper stack flipping, and is not limited here.

[0030] The drive assembly 370 has, for example, a fixed end and a drive end. The fixed end is fixedly connected to the inner sidewall of the tilting frame 100, and the drive end is fixedly connected to the second lifting and moving frame 320. The drive assembly 370 is, for example, a linear drive assembly such as a servo electric cylinder or hydraulic cylinder, used to provide stable power for the movement of the second lifting and moving frame 320.

[0031] Since the first chain 332, the second chain 342, the first sprocket 331, and the second sprocket 341 form a meshing transmission, when the drive assembly 370 drives the second lifting frame 320 to move upward, the second lifting frame 320 will drive the lower links of the first chain 332 and the second chain 342 to move upward synchronously. Under the action of the sprocket, the chain will drive the upper links to move downward in the opposite direction, thereby pulling the first lifting frame 310 downward, realizing the synchronous opposite movement of the first lifting frame 310 and the second lifting frame 320; conversely, when the second lifting frame 320 moves downward, the first lifting frame 310 will move upward synchronously, realizing the opposite opening.

[0032] Furthermore, the drive assembly 370 includes, for example, a first drive member 371 and a second drive member 372. The first drive member 371 and the second drive member 372 each have a drive end. The drive end of the first drive member 371 is fixedly connected to the second lifting and moving frame 320, and the drive end of the second drive member 372 is also fixedly connected to the second lifting and moving frame 320. The first drive member 371 and the second drive member 372 can, for example, both be linear drive assemblies such as servo electric cylinders or hydraulic cylinders. The drive ends of the first drive member 371 and the second drive member 372 can be fixedly connected to the second lifting and moving frame 320, for example, through a coupling or similar structure, enabling smooth linear drive and providing stable power for the movement of the second lifting and moving frame 320.

[0033] Furthermore, the lifting mechanism 10 for flipping the paper stack also includes, for example, a controller (not shown), such as a PLC. The first drive member 371 and the second drive member 372 are electrically connected to the controller, and the controller can realize the synchronous operation of the first drive member 371 and the second drive member 372.

[0034] The lifting mechanism 10 for paper stack flipping provided in this embodiment, by setting a first transmission wheel 330 and a second transmission wheel 340, and connecting the first chain 332 and the second chain 342 to the two ends of the first lifting moving frame 310 and the second lifting moving frame 320 respectively, and cooperating with the drive component 370 to achieve synchronous clamping, can achieve precise synchronous lifting of the two ends of the first lifting moving frame 310 and the second lifting moving frame 320, solving the problem that existing flipping clamping devices cannot achieve precise synchronous lifting, can achieve uniform distribution of clamping force on the paper stack, form a stable clamping effect, can reduce the paper stack offset and loosening during flipping, and improve the efficiency and stability of paper stack flipping operation.

[0035] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 The second lifting and moving frame 320 includes, for example, a lower main frame 323 and a first longitudinal bar 324 and a second longitudinal bar 325 connected to both ends of the lower main frame 323. The lower main frame 323 is, for example, a frame structure made of metal. In some embodiments, the lower main frame 323 may include, for example, a first crossbar 3231 and a second crossbar 3232. The first crossbar 3231 and the second crossbar 3232 are both parallel to the bottom plate frame 140 of the flipping frame 100, and the first crossbar 3231 and the second crossbar 3232 are parallel and spaced apart. Both extend along a first direction to form a stable support for the paper stack. The first longitudinal bar 324 and the second longitudinal bar 325 are, for example, long strip structures made of metal, and are parallel to the bottom plate frame 140 of the flipping frame 100. The first longitudinal bar 324 and the second longitudinal bar 325 are, for example, perpendicular to the first crossbar 3231 and the second crossbar 3232 in a horizontal plane. The aforementioned horizontal plane is, for example, a plane parallel to the bottom plate frame 140.

[0036] Refer to Figure 4The first vertical rod 324 is fixedly connected to the first chain 332, and the driving end of the first driving member 371 is fixedly connected to the first vertical rod 324. Specifically, the side wall end face of the first vertical rod 324 can be fixed to the link of the first chain 332 by bolts. Correspondingly, the second vertical rod 325 is fixedly connected to the second chain 342, and the driving end of the second driving member 372 is fixedly connected to the second vertical rod 325. The connection method is, for example, the same as the connection method of the first vertical rod 324 and the first chain 332. The driving end of the second driving member 372 is fixedly connected to the second vertical rod 325, forming a symmetrical driving layout with the driving end of the first driving member 371 fixedly connected to the first vertical rod 324, which is beneficial to improving the stability of the device.

[0037] In this embodiment, by setting a first longitudinal bar 324 and a second longitudinal bar 325 at both ends of the lower main frame 323, the lower chain link of the first chain 332 and the driving end of the first driving member 371, and the lower chain link of the second chain 342 and the driving end of the second driving member 372 are respectively integrated on the same longitudinal bar. This integrated design makes the first driving member 371, the first longitudinal bar 324 and the first transmission wheel 330 form a right-side transmission unit, and the second driving member 372, the second longitudinal bar 325 and the second transmission wheel 340 form a left-side transmission unit. The symmetrical layout of the two-sided units can further ensure the synchronous driving accuracy of the first driving member 371 and the second driving member 372, avoid chain jamming or frame offset caused by excessive driving force on one side, ensure the opposing synchronous clamping accuracy of the first lifting moving frame 310 and the second lifting moving frame 320, and thus prevent tilting when clamping the paper stack and improve clamping stability.

[0038] It should be noted that the first lifting and moving frame 310 can also adopt a similar structural design to the second lifting and moving frame 320. That is, the first lifting and moving frame 310 can also include, for example, an upper main frame 313 and a third longitudinal bar 314 and a fourth longitudinal bar 315 connected to both ends of the upper main frame. The structure of the upper main frame 313 is, for example, consistent with the structure of the lower main frame 323 of the second lifting and moving frame 320. Specifically, the upper main frame 313 includes, for example, a third crossbar 3131 and a fourth crossbar 3132, which are spaced apart. The third crossbar 3131 and the fourth crossbar 3132 are respectively connected between the third longitudinal bar 314 and the fourth longitudinal bar 315. The third crossbar 3131 and the fourth crossbar 3132 are provided to form a stable support for the paper stack. Among them, the first crossbar 3131 and the third crossbar 3131 are spaced apart in the second direction, and the second crossbar 3132 and the fourth crossbar 3132 are spaced apart in the second direction.

[0039] The third longitudinal rod 314 is fixedly connected to the first chain 332 of the first transmission wheel 330, and the fourth longitudinal rod 315 is fixedly connected to the second chain 342 of the second transmission wheel 340. The connection method is the same as that of the longitudinal rod and chain connection method of the second lifting and moving frame 320. In some embodiments, the third longitudinal rod 314 and the fourth longitudinal rod 315 of the first lifting and moving frame 310 are only used to be fixed to the chain to transmit power, and are not connected to the driving component. The driving force is only provided through the first driving component 371 and the second driving component 372 connected to the second lifting and moving frame 320. The first lifting and moving frame 310 and the second lifting and moving frame 320 are driven to move synchronously through the transmission of the sprocket. This symmetrical structural design can keep the stress state of the first lifting and moving frame 310 and the second lifting and moving frame 320 consistent, further improving the overall stability when the paper stack is clamped.

[0040] Refer to Figure 4 and Figure 6 The lifting mechanism 10 for flipping paper stacks also includes, for example, a first transmission connector 350 and a second transmission connector 360. The first transmission connector 350 is fixedly connected between the first longitudinal rod 324 and the first chain 332 of the first transmission wheel 330, and the second transmission connector 360 is fixedly connected between the second longitudinal rod 325 and the second chain 342 of the second transmission wheel 340. The two have the same structure and are symmetrically arranged.

[0041] In this embodiment, the first transmission connector 350 is, for example, a connecting plate structure made of metal. One end of it can be fixed to the end face of the first longitudinal rod 324 facing the first chain 332 by bolts, for example. The other end is provided with a groove that matches the link of the first chain 332. After engaging with the link through the groove, it is locked by a pin, for example, to achieve a firm connection between the first transmission connector 350 and the first chain 332. Of course, in other embodiments, the first transmission connector 350 can also be other suitable transmission connectors, for example. The specific structure can be adapted and designed according to the actual transmission requirements, and no specific limitation is made here. The structure of the second transmission connector 360 is, for example, the same as that of the first transmission connector 350. Its connection method with the second longitudinal rod 325 and the second chain 342 is also, for example, the same as that of the first transmission connector 350, to ensure the consistency of transmission on both sides.

[0042] In this embodiment, by setting the first transmission connector 350 and the second transmission connector 360 to connect between the chain and the longitudinal rod, the driving force can be transmitted more evenly to multiple links of the chain, avoiding the risk of chain breakage caused by excessive force on a single link. This further improves the transmission reliability of the lifting mechanism 10 used for paper stack flipping, ensuring that the large paper stack remains stable during clamping and flipping, and avoiding the paper stack from tipping over or being crushed due to transmission failure.

[0043] Furthermore, in this embodiment, the first transmission wheel 330 and the second transmission wheel 340 are configured as multiple sets, with each set of first transmission wheel 330 and second transmission wheel 340 having the same structure. The number of first transmission connectors 350 and second transmission connectors 360 corresponds accordingly. In some embodiments, two sets of first transmission wheels 330 can be arranged on the inner sidewall of the second support plate 120 of the flipping frame 100, and they are respectively arranged on both sides of the first driving member 371. Two sets of second transmission wheels 340 can be arranged on the inner sidewall of the first support plate 110 of the flipping frame 100, and they are respectively arranged on both sides of the second driving member 372. In this way, the transmission stability can be greatly improved, which is suitable for paper stack clamping. Of course, in other embodiments, the number of sets of sprockets and transmission connectors can be adapted to the actual transmission requirements, and there is no specific limitation here. Furthermore, each set of sprockets in the first transmission wheel 330 is connected to the first longitudinal rod 324 via a corresponding first transmission connector 350, and each set of sprockets in the second transmission wheel 340 is connected to the second longitudinal rod 325 via a corresponding second transmission connector 360. This multi-set configuration distributes the force, improves transmission stability, adapts to the large loads of paper stack clamping, and reduces wear on individual sets.

[0044] In some embodiments, the first drive member 371 and the second drive member 372 are staggered and located at diagonal positions of the first lifting frame 310 and the second lifting frame 320. This allows the first lifting frame 310 and the second lifting frame 320 to be subjected to more balanced forces, reduces the difference in lifting amount between the first lifting frame 310 and the second lifting frame 320, and avoids tilting caused by unilateral driving.

[0045] Specifically, the first driving member 371 also has a fixed end, which is fixedly connected to the inner wall of the second support plate 120 via bolts, flanges, or other connecting structures. The second driving member 372 also has a fixed end, which is fixedly connected to the inner wall of the first support plate 110 via bolts, flanges, or other connecting structures. (Refer to...) Figure 3 and Figure 5 The first support plate 110 and the second support plate 120 have opposing first sides 150 and second sides 160 in a third direction. The third direction is, for example, the width direction of the first support plate 110 and the second support plate 120, and is perpendicular to the first direction and the second direction, respectively. The first drive member 371 is disposed near the first side 150, and the second drive member 372 is disposed near the second side 160. This reduces the difference in lifting amount between the first lifting frame 310 and the second lifting frame 320, avoiding tilting caused by unilateral or same-side driving.

[0046] Furthermore, a guide rail 122 is provided on the side wall of the flipping frame 100. The guide rail 122 is provided on the side wall of the flipping frame 100 and extends along the second direction. The lifting mechanism 10 for flipping the paper stack also includes a plurality of guide moving parts 390. The plurality of guide moving parts 390 are respectively fixed at the first end 311, the second end 312, the third end 321 and the fourth end 322. Specifically, the plurality of guide moving parts 390 are respectively fixed at the two ends of the first vertical rod 324, the second vertical rod 325, the third vertical rod 314 and the fourth vertical rod 315 in the third direction. The guide moving parts 390 are arranged corresponding to the guide rail 122 and reciprocate along the guide rail 122. The guide rail 122 and the guide moving part 390 form a precise sliding constraint, which effectively limits the first lifting moving frame 310 and the second lifting moving frame 320 from shifting when clamping the paper stack. This avoids the first chain 332 and the second chain 342 from jamming or wearing due to uneven force on one side, significantly improving the smoothness of the sliding process and providing a reliable guiding guarantee for synchronously clamping the paper stack.

[0047] In one specific embodiment of this invention, the guide moving member 390 is a guide wheel, which rolls with the guide rail 122. The wheel surface of the guide wheel and the mating surface of the guide rail 122 are in rolling contact, and the linear displacement of the guide moving member 390 along the guide rail 122 is achieved through rolling friction. In another specific embodiment of this invention, the guide moving member 390 is a guide block, which slides with the guide rail 122. The mating surface of the guide block and the mating surface of the guide rail 122 are in sliding contact, and the linear displacement of the guide moving member 390 along the guide rail 122 is achieved through sliding friction. Of course, in other embodiments, other suitable guide moving member 390 structures can be selected according to specific application requirements, transmission accuracy requirements, and other design factors. This invention does not limit the specific structure and corresponding mating method of the guide moving member 390.

[0048] Refer to Figure 4 and Figure 6 In some embodiments, guide mounting surfaces are provided between the inner and outer sidewalls of the first support plate 110 and the second support plate 120, respectively. The guide rail 122 is fixedly connected to the guide mounting surface, and the guide moving member 390 is provided corresponding to the guide rail 122. In this way, the guide mounting surface avoids the mounting areas of the first transmission wheel 330, the second transmission wheel 340, the first chain 332, and the second chain 342 on the inner sidewall of the flipping frame 100, avoiding interference between the guide rail 122 and the transmission components. At the same time, it eliminates the need to additionally expand the overall size of the flipping frame 100, making the overall structure of the device more compact.

[0049] In other embodiments, the guide rail 122 can be fixed in other positions on the flip frame 100 according to the structural requirements of the flip frame 100, and the installation position of the guide moving part 390 can be adjusted accordingly. The specific design can be flexibly combined with the actual transmission layout and space requirements, and is not limited here.

[0050] Furthermore, it is understood that the foregoing embodiments are merely illustrative examples of this utility model. Provided that the technical features do not conflict, the structure is not contradictory, and the inventive purpose of this utility model is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lifting mechanism (10) for flipping paper stacks, characterized in that, include: The first lifting and moving frame (310) has a first end (311) and a second end (312) opposite each other in a first direction. The second lifting frame (320) has a third end (321) and a fourth end (322) opposite each other in the first direction. The first lifting frame (310) and the second lifting frame (320) are spaced apart in the second direction, and the first direction is perpendicular to the second direction. The first transmission wheel (330) includes two first sprockets (331) and a first chain (332). The two first sprockets (331) are spaced apart in a second direction. The first chain (332) is connected to the two first sprockets (331) in a transmission connection. The first end (311) and the third end (321) are respectively fixedly connected to the first chain (332). The second drive wheel (340) includes two second sprockets (341) and a second chain (342). The two second sprockets (341) are spaced apart in a second direction. The second chain (342) is connected to the two second sprockets (341) in a drive connection. The second end (312) and the fourth end (322) are respectively fixedly connected to the second chain (342). The drive assembly (370) has a drive end, which is fixedly connected to the second lifting moving frame (320).

2. The lifting mechanism (10) for flipping paper stacks according to claim 1, characterized in that, The drive component (370) includes: The first driving member (371) has a driving end, and the driving end of the first driving member (371) is fixedly connected to the second lifting moving frame (320); The second drive member (372) has a drive end, and the drive end of the second drive member (372) is fixedly connected to the second lifting moving frame (320).

3. The lifting mechanism (10) for flipping paper stacks according to claim 2, characterized in that, The second lifting and moving frame (320) includes: a lower main frame (323) and a first longitudinal rod (324) and a second longitudinal rod (325) connected to both ends of the lower main frame (323); the first longitudinal rod (324) is fixedly connected to the first chain (332), the driving end of the first driving member (371) is fixedly connected to the first longitudinal rod (324), the second longitudinal rod (325) is fixedly connected to the second chain (342), and the driving end of the second driving member (372) is fixedly connected to the second longitudinal rod (325).

4. The lifting mechanism (10) for flipping paper stacks according to claim 3, characterized in that, The lifting mechanism (10) for flipping paper stacks also includes: The first transmission connector (350) is fixedly connected between the first longitudinal rod (324) and the first chain (332); The second transmission connector (360) is fixedly connected between the second longitudinal rod (325) and the second chain (342).

5. The lifting mechanism (10) for flipping paper stacks according to claim 4, characterized in that, The number of the first transmission wheels (330) is multiple sets, and the number of the first transmission connectors (350) corresponds to the number of sets of the first transmission wheels (330); the number of the second transmission wheels (340) is multiple sets, and the number of the second transmission connectors (360) corresponds to the number of sets of the second transmission wheels (340).

6. The lifting mechanism (10) for flipping paper stacks according to claim 2, characterized in that, The first drive unit (371) and the second drive unit (372) are misaligned.

7. The lifting mechanism (10) for flipping paper stacks according to claim 6, characterized in that, The lifting mechanism (10) for flipping paper stacks further includes a flipping frame (100), which includes a first support plate (110) and a second support plate (120) arranged opposite to each other; the first driving member (371) also has a fixed end, the fixed end of the first driving member (371) is fixedly connected to the inner wall of the second support plate (120), and the second driving member (372) also has a fixed end, the fixed end of the second driving member (372) is fixedly connected to the inner wall of the first support plate (110); The first support plate (110) and the second support plate (120) have opposing first sides (150) and second sides (160) in a third direction, which are perpendicular to the first direction and the second direction, respectively; the first drive member (371) is disposed near the first side (150), and the second drive member (372) is disposed near the second side (160).

8. The lifting mechanism (10) for flipping paper stacks according to claim 1, characterized in that, The lifting mechanism (10) for flipping paper stacks further includes a flipping frame (100), on which a guide rail (122) is provided on the side wall, the guide rail (122) extending along the second direction; the lifting mechanism (10) for flipping paper stacks further includes: Multiple guide moving parts (390) are respectively fixed at the first end (311), the second end (312), the third end (321) and the fourth end (322). The guide moving parts (390) are arranged corresponding to the guide rail (122) and the guide moving parts (390) reciprocate along the guide rail (122).

9. The lifting mechanism (10) for flipping paper stacks according to claim 8, characterized in that, The guide moving part (390) is a guide wheel, which rolls in cooperation with the guide rail (122).

10. The lifting mechanism (10) for flipping paper stacks according to claim 8, characterized in that, The guide moving part (390) is a guide block, and the guide block slides in conjunction with the guide rail (122).

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