Turnover mechanism

Abstract

The utility model discloses a turnover mechanism. The turnover mechanism comprises a first bearing part, a second bearing part, a lifting assembly, a limiting assembly and a first driving part, and the limiting assembly comprises a limiting frame. According to the packaging box clamping device, the packaging box located on the first bearing piece can be pushed to the limiting frame through the lifting assembly, then the limiting frame and the lifting assembly are matched to clamp the packaging box, and therefore it is guaranteed that the clamping positions of the limiting frame on the packaging boxes of different specifications are kept unchanged all the time; therefore, the space positions of the packaging boxes with different specifications are kept unchanged after the packaging boxes are turned over by a certain degree, the material pushing stroke between the opening of the packaging box and the material pushing mechanism is kept unchanged no matter whether the specification of the packaging box is a half-piece packaging box or a whole-piece packaging box, the material pushing stroke does not need to be adjusted, and the material returning efficiency is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of silicon wafer production, and in particular to a flipping mechanism. Background Art

[0002] After the silicon wafers are sorted by the sorting machine, the qualified wafers will be collected one by one and stacked in the material box to form a stack. The stacked wafers then need to be stored in a packaging box for easy transportation.

[0003] Currently, the process for placing stacked sheets into boxes is as follows: First, a clamping mechanism removes the stacked sheets from the magazine and delivers them to a pusher mechanism. Simultaneously, a conveyor line transports the box to the packing station. Because the box opening at the packing station on the conveyor line is generally vertically upward, while the stacked sheets are pushed into the box horizontally, a flipping mechanism is typically installed to flip the box 90 degrees, allowing it to flip over to the infeed station and position its opening horizontally toward the pusher mechanism, allowing the pusher mechanism to push the stacked sheets into the box. After loading is complete, the flipping mechanism flips the box back to the packing station, with the box opening facing vertically upward to prevent the stacked sheets from falling out during transportation.

[0004] In actual production, wafer stacks are divided into different sizes based on the specifications of the silicon wafers. For example, the size of a stack formed by stacking half silicon wafers is only half the size of a stack formed by stacking full silicon wafers. Therefore, the packaging box for half-wafer stacks is also half the size of the packaging box for full-wafer stacks. Existing flipping mechanisms generally use clamping components to clamp the packaging box to a support component. The support component is fixed, so the position reference of the packaging box is on the support component, but the packaging box opening is on the side closest to the clamping component. As a result, when the flipping mechanism clamps the half-wafer packaging box and the full-wafer packaging box, the openings of the half-wafer packaging box and the full-wafer packaging box are not in the same position. Therefore, the existing pushing mechanism needs to change its pushing stroke according to the type of packaging box, affecting pushing efficiency. Utility Model Content

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a flip mechanism to solve the problem that the existing pushing mechanism needs to change the pushing stroke according to the type of packaging box, which affects the pushing efficiency.

[0006] The present application provides a flip mechanism, comprising a first bearing member, a second bearing member, a lifting assembly, a limiting assembly, and a first driving member, wherein:

[0007] The first carrier and the second carrier are arranged perpendicular to each other, the first carrier is configured to carry a packaging box with an opening facing vertically, and the second carrier is configured to carry a packaging box with an opening facing horizontally;

[0008] The limiting assembly includes a second driving member and a limiting frame disposed opposite to the first supporting member, wherein the second driving member is configured to drive the limiting frame to move toward the first supporting member to a first position or away from the first supporting member;

[0009] The lifting assembly includes a third driving member and a lifting plate, the lifting plate is arranged on one side of the first bearing member, the driving end of the third driving member is connected to the lifting plate, and the third driving member is configured to drive the lifting plate to move toward the limiting frame to the second position or to be flush with the first bearing member;

[0010] The distance between the limiting frame at the first position and the lifting plate at the second position is the same as the height of the packaging box storing the half-sheet stack;

[0011] The distance between the limiting frame and the first bearing member at the first position is the same as the height of the packaging box storing the whole stack of sheets;

[0012] The first driving member is configured to drive the first bearing member, the second bearing member, the limiting assembly and the lifting assembly to flip synchronously.

[0013] Based on the embodiment of the above-mentioned flipping mechanism, when flipping the packaging box, the first supporting member is first used to support the packaging box, and then the corresponding components are selected based on the specifications of the packaging box to cooperate with the limit frame to achieve clamping of the packaging box. If the specification of the packaging box is a full-piece packaging box, the limit frame is directly driven to move to the first position to achieve clamping of the packaging box. If the specification of the packaging box is a half-piece packaging box, the limit frame is first driven to move to the first position, and then the lifting assembly is used to drive the packaging box to move to the second position to achieve clamping of the packaging box, thereby ensuring that even if the specifications of the packaging box change, the clamping position of the limit frame on the packaging box remains unchanged; then the first driving member is used to flip the first supporting member, the second supporting member, the limit assembly and the lifting assembly. At this time, the second supporting member supports the packaging box, and since the clamping position of the limit frame on the packaging box remains unchanged, its position after flipping also remains unchanged, so that no matter whether the specification of the packaging box is a half-piece or full-piece packaging box, the pushing stroke between its opening and the pushing mechanism remains unchanged, and there is no need to adjust it, thereby ensuring the return efficiency.

[0014] Optionally, the flip mechanism further includes a base and a transmission member, wherein:

[0015] The base is rotatably connected to the fixed end of the first driving member, and the transmission member is rotatably connected to the driving end of the first driving member;

[0016] The first bearing member is rotatably connected to the base, and the first bearing member and the second bearing member are respectively fixedly connected to the transmission member;

[0017] The first driving member is configured to drive the transmission member to turn 90 degrees toward the feeding station, so as to drive the packaging box on the first supporting member to turn over to the second supporting member;

[0018] The first driving member is further configured to drive the transmission member to turn 90 degrees toward the packing station, so as to drive the packaging box on the second supporting member to turn to the first supporting member or the lifting plate.

[0019] Furthermore, based on an embodiment of the flipping mechanism, when the package box is clamped and waiting to be flipped and packed, the first driving member is used to drive the transmission member to flip 90° toward the feeding station, so as to drive the first carrier and the second carrier to flip synchronously, and then drive the base to flip relative to the first driving member, so that the first carrier, the second carrier, the lifting plate and the base are flipped synchronously by 90°, so that the package box falls on the second carrier; after the packing is completed, the first driving member is used to drive the transmission member to flip 90° toward the packing station, so as to drive the first carrier, the second carrier, the lifting plate and the base to flip synchronously by 90°, so that the package box falls on the first carrier or the lifting plate. If it falls on the lifting plate, the position of the lifting plate can be further adjusted so that the package box falls on the first carrier, so as to facilitate the transportation of the package box filled with stacked sheets to the conveyor line.

[0020] Optionally, the limit frame is slidably connected to the second carrier, the fixed end of the second drive member is mounted on the second carrier, and the second drive member is configured to drive the limit frame toward or away from the first carrier, thereby clamping or releasing the packaging box on the first carrier.

[0021] Furthermore, based on an embodiment of the flipping mechanism, by installing the second driving member on the second supporting member, the verticality of the limit frame relative to the second supporting member can be improved, and the limit frame is slidably connected to the second supporting member, which can further improve the verticality of the limit frame relative to the second supporting member, thereby improving the clamping stability of the limit frame on the packaging box; when clamping the packaging box, the second driving member drives the limit frame to slide relative to the second supporting member to approach or move away from the first supporting member, thereby achieving clamping or release of the packaging box.

[0022] Optionally, the limiting frame is provided with an open structure, and the open structure is configured to clamp the packaging box on the first supporting member and avoid the moving path of the stack.

[0023] Furthermore, based on an embodiment of the flipping mechanism, the setting of the open structure facilitates the pushing mechanism to push the stack into the packaging box, and at the same time, the packaging box can be clamped on the first supporting member to improve the stability of the packaging box during the flipping process.

[0024] Optionally, a guide structure is provided on one side of the limit frame close to the first carrier, and the guide structure includes a guide plate arranged along the circumference of the limit frame, and the guide plate is elastically deformed under pressure to abut the packaging box located on the first carrier or the second carrier.

[0025] Furthermore, based on an embodiment of the flipping mechanism, a guide structure can be used to guide the packaging box to cooperate with the limit frame, and the surrounding sides of the packaging box can be clamped, thereby further improving the clamping of the packaging box and improving the stability of the packaging box during the flipping process.

[0026] Optionally, a snap-fit ​​surface and an outwardly inclined surface are provided on an inward side of the guide plate, and the inclined surface is configured to guide the side surface of the packaging box to abut against the snap-fit ​​surface.

[0027] Furthermore, based on an embodiment of the flipping mechanism, when the limit frame clamps the packaging box, the inclined surface is first used to guide the side of the packaging box into the limit frame to avoid wear on the side of the packaging box, and then the clamping surface is used to clamp the side of the packaging box.

[0028] Optionally, the limiting assembly further includes a connecting rod and two lifting plates, the two lifting plates are respectively slidably mounted on the second bearing member, the two lifting plates are respectively fixedly connected to two ends of the limiting frame, and the lifting plates are configured to support the limiting frame;

[0029] The second driving member is located between the two lifting plates. The driving end of the second driving member is fixedly connected to the connecting rod. The two ends of the connecting rod in the length direction are respectively fixedly connected to the two lifting plates. The second driving member is configured to drive the connecting rod to rise and fall to drive the limit frame to approach or move away from the first bearing member.

[0030] Furthermore, based on an embodiment of the flipping mechanism, when flipping the half-sheet packaging box, the second driving member is used to drive the connecting rod to drive the lifting plates arranged at both ends of the connecting rod in the length direction to move up and down, thereby improving the synchronization of the movement of the two ends of the limit frame in the length direction.

[0031] Optionally, the lifting plate is slidably connected to the second supporting member, and the third driving member is configured to drive the lifting plate to push the packaging box on the first supporting member toward the limiting assembly.

[0032] Furthermore, based on an embodiment of the flipping mechanism, the verticality of the lifting plate relative to the second supporting member is improved by limiting the sliding connection between the lifting plate and the second supporting member, and the parallelism of the lifting plate and the first supporting member is indirectly ensured.

[0033] Optionally, the first supporting member includes two support plates fixed on the transmission member in parallel and at intervals, the two support plates are configured to synchronously carry the packaging boxes, two lifting plates are provided, the two lifting plates are parallel to and arranged side by side with the two support plates, and the third driving member is configured to drive the two lifting plates close to the second supporting member to push the packaging boxes on the two support plates toward the limiting frame.

[0034] Furthermore, based on an embodiment of the flipping mechanism, support for the packaging box at different positions in the vertical direction is achieved through two support plates that are parallel and spaced apart, and two lifting plates that are parallel to and arranged side by side with the support plates.

[0035] Optionally, the third driving member includes two rodless cylinders, and the two rodless cylinders respectively drive the two lifting plates to slide.

[0036] Furthermore, based on an embodiment of the flipping mechanism, by configuring the third driving member as a rodless cylinder, the lifting plate can be driven in a smaller space, thereby improving the structural compactness of the flipping mechanism.

[0037] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The disclosure of this application will become more easily understood with reference to the accompanying drawings. Those skilled in the art will readily appreciate that these drawings are provided for illustrative purposes only and are not intended to limit the scope of protection of this application. Furthermore, similar numbers in the drawings represent similar components, wherein:

[0039] Figure 1 This is a schematic structural diagram of a flip mechanism in one embodiment of the present application;

[0040] Figure 2 This is a schematic structural diagram of a flip mechanism and a packaging box in one embodiment of the present application;

[0041] Figure 3 This is a schematic diagram of a flip mechanism clamping a packaging box in one embodiment of the present application;

[0042] Figure 4 This is a schematic structural diagram of a flip mechanism without a lifting plate in one embodiment of the present application;

[0043] Figure 5 This is a schematic diagram of the positions of the first supporting member and the second supporting member of one embodiment of the present application;

[0044] Figure 6 This is a schematic diagram of the positions of the limiting frame and the first supporting member in one embodiment of the present application.

[0045] Description of reference numerals:

[0046] 1. First bearing member; 11. Support plate; 2. Second bearing member; 21. Avoidance groove; 3. Lifting assembly; 31. Third driving member; 32. Lifting plate; 4. Limiting assembly; 41. Second driving member; 42. Limiting frame; 421. Open structure; 422. Guide structure; 4221. Guide plate; 4222. Snap-fit ​​surface; 4223. Inclined surface; 43. Connecting rod; 44. Lifting plate; 5. First driving member; 6. Packing box; 7. Base; 71. Baseboard; 72. First rotating shaft; 73. Second rotating shaft; 8. Transmission member. DETAILED DESCRIPTION

[0047] Some embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely configured to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application.

[0048] As described in the background technology, in actual production, the packaging box for half-sheet stacking will be half the size of the packaging box for whole-sheet stacking. The existing flipping mechanism generally clamps the packaging box on the supporting component through a clamping component, and the supporting component is fixed. Therefore, the position reference of the packaging box is on the supporting component, but the opening of the packaging box is on the side close to the clamping component. This results in the flipping mechanism clamping the packaging box for half sheets and the packaging box for whole sheets. The openings of the half-sheet packaging box and the whole-sheet packaging box are not in the same position. The existing pushing mechanism needs to change its pushing stroke according to the type of packaging box, which affects the pushing efficiency.

[0049] Therefore, the present application creatively proposes a flipping mechanism, which includes a first carrier, a second carrier, a lifting assembly, a limiting assembly and a first driving member. When flipping a whole piece of packaging box, the first carrier is first used to carry the packaging box with the opening facing vertically, and then the second driving member drives the limiting frame to move to the first position to cooperate with the first carrier to clamp the packaging box, and then the first driving member drives the first carrier, the second carrier and the limiting assembly to flip, thereby realizing the flipping of the packaging box so that the opening of the packaging box faces horizontally. At this time, the second carrier The first supporting member carries the packaging box with the opening facing horizontally, and the pushing mechanism pushes the stacked sheets into the packaging box according to the set pushing stroke. After the packaging box is full of stacked sheets, the first driving member drives the first supporting member, the second supporting member and the limiting assembly to flip over so that the opening of the packaging box faces vertically. At this time, the first supporting member carries the packaging box with the opening facing vertically, and then the limiting frame is driven away from the first supporting member by the second driving member, so that the packaging box full of stacked sheets is placed on the conveyor line and transported to the next station. When flipping the packaging box for half sheets, the first supporting member is first used to carry the opening facing vertically. The lifting plate is then driven by the third driving member to move and carry the packaging box with the opening facing vertically to the second position, thereby changing the position reference of the half-sheet packaging box. The limiting frame is then driven by the second driving member to move to the first position to cooperate with the lifting plate to clamp the packaging box. The first driving member then drives the first supporting member, the second supporting member, the lifting assembly and the limiting assembly to flip over, thereby realizing the flipping of the packaging box so that the opening of the packaging box faces horizontally. At this time, the second supporting member carries the packaging box with the opening facing horizontally, and since the position reference of the half-sheet packaging box The accurate change makes the pushing stroke of the pushing mechanism remain unchanged, so that the pushing mechanism can push the stacked sheets into the packaging box, thereby improving the pushing efficiency. After the packaging box is filled with stacked sheets, the first driving member drives the first supporting member, the second supporting member, the lifting assembly and the limiting assembly to flip over, so that the opening of the packaging box is vertically facing, and then the third driving member drives the lifting plate to be flush with the first supporting member, so that the first supporting member carries the packaging box with the opening facing vertically, and then the second driving member drives the limiting frame away from the first supporting member, so that the packaging box can be placed on the conveyor line and transported to the next workstation.

[0050] The present application will be described in detail below through specific embodiments.

[0051] Reference Figures 1 to 6As shown, the embodiment of the present application provides a flip mechanism, which includes a first carrier 1, a second carrier 2, a lifting assembly 3, a limiting assembly 4 and a first driving member 5, wherein: the first carrier 1 and the second carrier 2 are arranged perpendicular to each other, the first carrier 1 is configured to carry a packaging box 6 with an opening facing vertically, and the second carrier 2 is configured to carry a packaging box 6 with an opening facing horizontally; the limiting assembly 4 includes a second driving member 41 and a limiting frame 42 arranged opposite to the first carrier 1, the second driving member 41 is configured to drive the limiting frame 42 to move toward the first carrier 1 to a first position or away from the first carrier 1; the lifting assembly 3 includes a third driving member 3 1 and a lifting plate 32, the lifting plate 32 is arranged on one side of the first supporting member 1, the driving end of the third driving member 31 is connected to the lifting plate 32, and the third driving member 31 is configured to drive the lifting plate 32 to move toward the limit frame 42 to the second position or to be flush with the first supporting member 1; the distance between the limit frame 42 at the first position and the lifting plate 32 at the second position is the same as the height of the packaging box 6 for storing half-sheet stacks; the distance between the limit frame 42 at the first position and the first supporting member 1 is the same as the height of the packaging box 6 for storing whole-sheet stacks; the first driving member 5 is configured to drive the first supporting member 1, the second supporting member 2, the limit assembly 4 and the lifting assembly 3 to flip synchronously.

[0052] In some examples, the shapes of the first carrier 1 and the second carrier 2 can be triangular prisms, quadrangular prisms or other polygonal prisms, or plate structures such as triangular plates, quadrilateral plates, or sheet metal structures such as bent plates, as long as they can stably support the packaging box 6.

[0053] Specifically, refer to Figures 1 to 3 As shown, when flipping the half-sheet packaging box 6, the first carrier 1 is first used to support the packaging box 6 with its opening facing vertically, and then the second driving member 41 drives the limiting frame 42 to move to the first position to cooperate with the first carrier 1 to clamp the packaging box 6, and then the first driving member 5 drives the first carrier 1, the second carrier 2 and the limiting assembly 4 to flip, thereby realizing the flipping of the packaging box 6, so that the opening of the packaging box 6 is facing horizontally. At this time, the second carrier 2 supports the packaging box 6 with its opening facing horizontally. At this time, the pushing mechanism pushes the stacked sheets into the packaging box 6 according to the set pushing stroke. After the packaging box 6 is full of stacked sheets, the first driving member 5 drives the first carrier 1, the second carrier 2 and the limiting assembly 4 to flip, so that the opening of the packaging box 6 is facing vertically. At this time, the first carrier 1 supports the packaging box 6 with its opening facing vertically, and then the second driving member 41 drives the limiting frame 42 away from the first carrier 1, so that the packaging box 6 filled with stacked sheets can be placed on the conveyor line and transported to the next workstation.

[0054] When flipping the half-sheet packaging box 6, first use the first supporting member 1 to support the packaging box 6 with the opening facing vertically, then use the third driving member 31 to drive the lifting plate 32 to move and support the packaging box 6 with the opening facing vertically to the second position, thereby changing the position reference of the half-sheet packaging box 6, and then use the second driving member 41 to drive the limiting frame 42 to move to the first position to cooperate with the lifting plate 32 to clamp the packaging box 6, and then use the first driving member 5 to drive the first supporting member 1, the second supporting member 2, the lifting assembly 3 and the limiting assembly 4 to flip, thereby realizing the flipping of the packaging box 6, so that the opening of the packaging box 6 is facing horizontally, and at this time the second supporting member 2 supports the packaging box with the opening facing horizontally. 6, and since the position reference of the half-sheet packaging box 6 is changed, the pushing stroke of the pushing mechanism can remain unchanged, so that the pushing mechanism pushes the stacked sheets into the packaging box 6, thereby improving the pushing efficiency. After the packaging box 6 is filled with stacked sheets, the first driving member 5 drives the first carrier 1, the second carrier 2, the lifting assembly 3 and the limiting assembly 4 to flip over, so that the opening of the packaging box 6 is vertically facing, and then the third driving member 31 drives the lifting plate 32 to be flush with the first carrier 1, so that the first carrier 1 carries the packaging box 6 with the opening facing vertically, and then the second driving member 41 drives the limiting frame 42 away from the first carrier 1, so that the packaging box 6 is placed on the conveyor line and transported to the next workstation.

[0055] Further, in some examples, reference Figure 1 、 Figure 4 and Figure 5 As shown, the flipping mechanism also includes a base 7 and a transmission member 8, wherein: the base 7 is rotatably connected to the fixed end of the first driving member 5, and the transmission member 8 is rotatably connected to the driving end of the first driving member 5; the first supporting member 1 is rotatably connected to the base 7, and the first supporting member 1 and the second supporting member 2 are respectively fixedly connected to the transmission member 8; the first driving member 5 is configured to drive the transmission member 8 to flip 90° toward the feeding station to drive the packaging box 6 on the first supporting member 1 to flip onto the second supporting member 2; the first driving member 5 is also configured to drive the transmission member 8 to flip 90° toward the packing station to drive the packaging box 6 on the second supporting member 2 to flip onto the first supporting member 1 or the lifting plate 32.

[0056] It should be noted that when the half-sheet packaging box 6 is flipped 90° toward the packing station, the packaging box 6 on the second carrier 2 is first flipped onto the lifting plate 32. The third driving member 31 then drives the lifting plate 32 until it is flush with the first carrier 1. At this point, the lifting plate 32 and the first carrier 1 jointly support the packaging box 6 filled with stacked sheets. If the full-sheet packaging box 6 is flipped 90° toward the packing station, the first driving member 5 will flip the packaging box 6 on the second carrier 2 directly onto the first carrier 1.

[0057] In some examples, reference Figure 1 、 Figure 5and Figure 6 As shown, the base 7 includes two opposing base plates 71, one on each side of the solid end of the first drive member 5. The first end of the base plate 71 is rotatably connected to a first rotating shaft 72 fixed to the fixed end of the first drive member 5. The second end of the base plate 71 is rotatably connected to a second rotating shaft 73, and the first supporting member 1 is rotatably connected to the second rotating shaft 73 to improve the rollover stability of the first supporting member 1, the second supporting member 2, and the lifting assembly 3. The first supporting member 1 is fixedly connected to the transmission member 8 via a rectangular plate, and the second supporting member 2 is fixedly connected to the rectangular plate via two L-shaped plates.

[0058] In some other examples, the flipping mechanism includes a driving motor and a driving shaft, and the driving shaft is fixedly connected to the side of the first carrier 1. The driving motor drives the driving shaft to rotate, which can drive the first carrier 1 to rotate a certain degree.

[0059] Furthermore, in some examples, the limit frame 42 is slidably connected to the second carrier 2, the fixed end of the second driving member 41 is installed on the second carrier 2, and the second driving member 41 is configured to drive the limit frame 42 close to or away from the first carrier 1, thereby clamping or loosening the packaging box 6 located on the first carrier 1.

[0060] Optionally, the second driving member 41 is fixed in the middle of the back side of the second carrier 2, and two slider guide rail modules are symmetrically arranged on the back side of the second carrier 2 with the second driving member 41 as the center of symmetry, and then the limit frame 42 is fixedly connected to the slider of the slider guide rail module, thereby improving the stability of the limit frame 42 in lifting and lowering.

[0061] It will be appreciated that, to facilitate the pushing of the stack, the retaining frame 42 is provided with an open structure 421. This open structure 421 is configured to clamp the packaging box 6 onto the first carrier 1 and avoid the movement path of the stack. In this embodiment, the open structure 421 includes a through hole extending therethrough to avoid the movement path of the stack, and a crossbeam is provided in the middle of the through hole to accommodate the specific shape of the packaging box 6.

[0062] Optional, see Figure 1 and Figure 6 As shown, a guide structure 422 is provided on a side of the limiting frame 42 near the first carrier 1. The guide structure 422 includes a guide plate 4221 disposed along the circumference of the limiting frame 42. The guide plate 4221 elastically deforms under pressure to abut against the packaging box 6 located on the first carrier 1 or the second carrier 2. In some examples, the guide plate 4221 is made of an elastic aluminum alloy, and may also be made of an elastic material such as rubber.

[0063] Furthermore, in some examples, a snap-fit ​​surface 4222 and an outwardly inclined inclined surface 4223 are provided on the inward side of the guide plate 4221 , and the inclined surface 4223 is configured to guide the side surface of the packaging box 6 to abut against the snap-fit ​​surface 4222 .

[0064] Specifically, when the second driving member 41 drives the limit frame 42 to move toward the first supporting member 1, the inclined surface 4223 first abuts against the outer side surface of the packaging box 6, and as the limit frame 42 moves, the clamping surface 4222 gradually abuts against the outer side surface of the packaging box 6 until the limit frame 42 moves to the first position, at which time the clamping surface 4222 completely clamps the outer side surface of the packaging box 6.

[0065] In some examples, reference Figure 1 As shown, the limiting assembly 4 also includes a connecting rod 43 and two lifting plates 44. The two lifting plates 44 are respectively slidably mounted on the second supporting member 2. The two lifting plates 44 are respectively fixedly connected to the two ends of the limiting frame 42. The lifting plates 44 are configured to support the limiting frame 42; the second driving member 41 is located between the two lifting plates 44. The driving end of the second driving member 41 is fixedly connected to the connecting rod 43. The two ends of the connecting rod 43 in the length direction are respectively fixedly connected to the two lifting plates 44. The second driving member 41 is configured to drive the connecting rod 43 to rise and fall, so as to drive the limiting frame 42 to approach or move away from the first supporting member 1.

[0066] Specifically, the lifting and lowering of the driving end of the second driving member 41 drives the lifting and lowering of the connecting rod 43, and then drives the two lifting plates 44 to lift and lower synchronously. At the same time, the lifting plates 44 are also slidingly connected to the second supporting plate, so that the limiting frame 42 as a whole can be lifted and lowered synchronously and smoothly to achieve stable clamping of one side of the packaging box 6.

[0067] In some examples, the lifting plate 32 is slidably connected to the second carrier 2, and the third driving member 31 is configured to drive the lifting plate 32 to push the packaging box 6 on the first carrier 1 toward the limiting assembly 4. By using the second carrier 2 as a sliding reference, the stability of the movement of the lifting plate 32 is improved.

[0068] In some examples, reference Figure 1 and Figure 6 As shown, the first carrier 1 includes two support plates 11 fixed in parallel and at intervals on the transmission member 8, the two support plates 11 are configured to synchronously carry the packaging box 6, two lifting plates 32 are provided, the two lifting plates 32 are parallel to and arranged side by side with the two support plates 11, and the third driving member 31 is configured to drive the two lifting plates 32 to approach the second carrier 2 to push the packaging box 6 on the two support plates 11 toward the limit frame 42.

[0069] Accordingly, refer to Figure 1 and Figure 5As shown, an avoidance groove 21 is opened along one side of the width direction of the second supporting member 2 to facilitate the movement of the lifting plate 32 toward the limiting frame 42 , while also limiting the movement of the lifting plate 32 and improving the stability of the movement of the lifting plate 32 .

[0070] In this embodiment, the second supporting member 2 is a rectangular plate to ensure that it can stably support the packaging boxes 6 that are continuously added with the stacked sheets during the pushing process.

[0071] In addition, the lifting plate 32 can also be a triangular prism, a quadrangular prism or other polygonal prism, or a plate structure such as a triangular plate, a quadrangular plate, or a sheet metal structure such as a bent plate, as long as it can stably support the packaging box 6.

[0072] In some examples, the limiting frame 42 can be a rectangular frame structure, a round roller frame structure, etc., as long as it can cooperate with the first carrier 1 and / or the lifting plate 32 to clamp the packaging box 6. In this embodiment, the limiting frame 42 is a rectangular frame structure to better adapt to the side of the packaging box 6.

[0073] In this embodiment, the first driving member 5 is a cylinder. It is understood that the first driving member 5 can also be an electric cylinder, a hydraulic cylinder, a ball screw module or other driving elements that can achieve linear drive. The second driving member 41 is a cylinder.

[0074] In this embodiment, the third driving member includes two rodless cylinders, and the two rodless cylinders respectively drive the two lifting plates to slide.

[0075] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0077] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A turning mechanism, characterized in that: The flip mechanism includes a first bearing member, a second bearing member, a lifting assembly, a limiting assembly and a first driving member, wherein: The first carrier and the second carrier are arranged perpendicular to each other, the first carrier is configured to carry a packaging box with an opening facing vertically, and the second carrier is configured to carry a packaging box with an opening facing horizontally; The limiting assembly includes a second driving member and a limiting frame disposed opposite to the first supporting member, wherein the second driving member is configured to drive the limiting frame to move toward the first supporting member to a first position or away from the first supporting member; The lifting assembly includes a third driving member and a lifting plate, wherein the lifting plate is arranged on one side of the first bearing member, a driving end of the third driving member is connected to the lifting plate, and the third driving member is configured to drive the lifting plate to move toward the limiting frame to a second position or to be flush with the first bearing member; The distance between the limiting frame at the first position and the lifting plate at the second position is the same as the height of the packaging box storing the half-sheet stack; The distance between the limiting frame and the first bearing member at the first position is the same as the height of the packaging box storing the whole stack of sheets; The first driving member is configured to drive the first bearing member, the second bearing member, the limiting assembly and the lifting assembly to flip synchronously.

2. The turning mechanism according to claim 1, characterized in that: The flip mechanism further includes a base and a transmission member, wherein: The base is rotatably connected to the fixed end of the first driving member, and the transmission member is rotatably connected to the driving end of the first driving member; The first bearing member is rotatably connected to the base, and the first bearing member and the second bearing member are respectively fixedly connected to the transmission member; The first driving member is configured to drive the transmission member to turn 90° toward the feeding station, so as to drive the packaging box on the first supporting member to turn over to the second supporting member; The first driving member is further configured to drive the transmission member to flip 90° toward the packing station, so as to drive the packaging box on the second supporting member to flip onto the first supporting member or the lifting plate.

3. The turning mechanism according to claim 2, characterized in that: The limiting frame is slidably connected to the second supporting member, and the fixed end of the second driving member is installed on the second supporting member. The second driving member is configured to drive the limiting frame to approach or move away from the first supporting member, thereby clamping or releasing the packaging box located on the first supporting member.

4. The turning mechanism according to claim 3, characterized in that: The limiting frame is provided with an open structure, and the open structure is configured to clamp the packaging box on the first supporting member and avoid the moving path of the stack.

5. The turning mechanism according to claim 3, characterized in that: A guide structure is provided on one side of the limit frame close to the first bearing member. The guide structure includes a guide plate provided along the circumference of the limit frame. The guide plate is elastically deformed under pressure to abut against the packaging box located on the first bearing member or the second bearing member.

6. The turning mechanism according to claim 5, characterized in that: A snap-fit ​​surface and an outwardly inclined surface are provided on an inward side of the guide plate, and the inclined surface is configured to guide the side surface of the packaging box to abut against the snap-fit ​​surface.

7. The turning mechanism according to claim 3, characterized in that: The limiting assembly further includes a connecting rod and two lifting plates, the two lifting plates are respectively slidably mounted on the second bearing member, the two lifting plates are respectively fixedly connected to two ends of the limiting frame, and the lifting plates are configured to support the limiting frame; The second driving member is located between the two lifting plates, the driving end of the second driving member is fixedly connected to the connecting rod, and the two ends of the connecting rod in the length direction are respectively fixedly connected to the two lifting plates. The second driving member is configured to drive the connecting rod to rise and fall, so as to drive the limiting frame to approach or move away from the first bearing member.

8. The turning mechanism according to any one of claims 2 to 7, characterized in that: The lifting plate is slidably connected to the second bearing member, and the third driving member is configured to drive the lifting plate to push the packaging box located on the first bearing member toward the limiting assembly.

9. The turning mechanism according to claim 8, characterized in that: The first supporting member includes two support plates fixed on the transmission member in parallel and at intervals, and the two support plates are configured to synchronously support the packaging box. There are two lifting plates, which are parallel to and arranged side by side with the two support plates. The third driving member is configured to drive the two lifting plates to approach the second supporting member to push the packaging box on the two support plates toward the limiting frame.

10. The turning mechanism according to claim 9, characterized in that: The third driving member includes two rodless cylinders, and the two rodless cylinders respectively drive the two lifting plates to slide.

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