Rotary limiting mechanism

Abstract

The rotating limiting mechanism comprises a rack and a portal frame arranged at the upper end of the rack, the portal frame comprises a rotating supporting piece and a driven rotating piece, a connecting hole extending in the vertical direction is formed in the rotating supporting piece, and a rotating piece extending upwards is arranged at the upper end of the driven rotating piece; the rotating part is rotationally connected to the rotating supporting part through the connecting hole, the rotating part can rotate in the connecting hole in the circumferential direction and drive the driven rotating part to rotate relative to the rotating supporting part in the horizontal direction, a driving rotating part is movably connected to the rack, and the driving rotating part and the driven rotating part are located in the same vertical plane; the driving rotating piece is configured to move upwards to clamp and rotate a book together with the driven rotating piece; a limiting structure is further arranged between the rotating piece and the connecting hole and comprises limiting pieces and limiting holes, the multiple limiting pieces are arranged on one of the outer wall of the rotating piece and the inner wall of the connecting hole in the circumferential direction, and the multiple limiting holes are correspondingly formed in the other one of the outer wall of the rotating piece and the inner wall of the connecting hole.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing technical field, concretely relates to rotation limiting mechanism. BACKGROUND

[0002] It is well known that when books are placed horizontally, the surface is not always horizontal, and the height of the side of the book where the book is bound is slightly higher. This makes the book stack present the condition of one side being higher and the other side being lower when multiple books are stacked in the same direction, which leads to the book stack being unstable and being difficult to pack. Therefore, in the batch manufacturing process of books, in order to facilitate packaging and transportation, manufacturers will rotate some books horizontally by 180°, so that the bound side of the book is reversed; in the stacking process, the books in two different directions are stacked in turn, so that the bound side of the book is evenly distributed on the left and right sides of the book stack after the book stack is formed, so that the book stack is overall flat, and packaging is facilitated.

[0003] If the books are rotated manually, there are problems of large workload, dullness, and low efficiency, so the existing technology adds a book rotating mechanism to the conveying belt, which includes a driven clamping plate and a driving clamping plate arranged vertically, when the book to be rotated passes through the book rotating mechanism, the motor drives the driving clamping plate to move upward and clamp the book between the driving clamping plate and the driven clamping plate, then the motor drives the driving clamping plate to rotate by 180° in the horizontal direction, the driven clamping plate is driven to rotate synchronously, so that the book clamped between the two can be rotated and changed in direction, and is transmitted to the packing area by the transmission belt.

[0004] However, the above-mentioned scheme has the following problems: although the driving clamping plate can be fixed at any rotation angle controlled by the motor, the driven clamping plate driven to rotate by the driving clamping plate has no reliable limiting way, which leads to the driven clamping plate still rotating under the action of inertia when the driving clamping plate stops rotating, so that the book clamped between the two clamping plates is driven to deflect, the direction of the book is inclined, the stacking and packing operation of the book is affected, and the packing and transportation efficiency of the book is reduced.

[0005] Therefore, how to limit the rotation angle of the driven clamping plate so that the driven clamping plate can be fixed at a predetermined rotation angle with the driving clamping plate has become the main problem to be solved at present. SUMMARY

[0006] In view of the above defects or deficiencies in the prior art, it is desirable to provide a rotation limiting mechanism, by setting a limiting structure between the rotating part and the connecting hole, when the driving rotating part rotates by a preset angle, the limiting part is clamped into the limiting hole, so that the rotating part cannot continue to rotate relative to the rotating support, thereby offsetting the influence of inertia, the driven rotating part can rotate together with the driving rotating part by a preset angle, and the book clamped between the two can maintain a flat posture, thereby facilitating subsequent conveying and packaging operations, and improving the packaging and conveying efficiency of the book.

[0007] The effect of the utility model is realized as follows:

[0008] The application provides a rotation limiting mechanism, which comprises a rack and a portal frame arranged at the upper end of the rack, the portal frame comprises a rotating support and a driven rotating part, the rotating support is provided with a connecting hole extending in the vertical direction, the upper end of the driven rotating part is provided with a rotating part extending upward, the rotating part is rotationally connected to the rotating support through the connecting hole, the rotating part can rotate in the circumferential direction in the connecting hole and drive the driven rotating part to rotate relative to the rotating support in the horizontal direction, the rack is movably connected with a driving rotating part, the driving rotating part and the driven rotating part are located in the same vertical plane, the driving rotating part is configured to move upward and clamp the book together with the driven rotating part, and drive the driven rotating part to rotate in the horizontal direction to rotate the book; a limiting structure is further arranged between the rotating part and the connecting hole, the limiting structure comprises a plurality of limiting parts and limiting holes, the plurality of limiting parts are arranged in the circumferential direction on one of the outer wall of the rotating part and the inner wall of the connecting hole, and the plurality of limiting holes are correspondingly arranged on the other one of the outer wall of the rotating part and the inner wall of the connecting hole; after the driven rotating part is driven by the driving rotating part to rotate by a preset angle, the limiting part is clamped into the limiting hole, so that the driven rotating part cannot further rotate relative to the rotating support.

[0009] Further, a plurality of sliding grooves are radially hollowed out on the rotating support, the limiting part is slidingly connected to the rotating support through the sliding groove, and the plurality of limiting holes are correspondingly arranged on the outer wall of the rotating part. When the driven rotating part is driven to rotate, the limiting part can slide into the sliding groove and avoid the limiting hole, so that the rotating process of the rotating support can be more stable and smooth.

[0010] Further, a first elastic member is further arranged in the sliding groove, the first elastic member pushes the limiting part, so that the limiting part always has a tendency to be clamped into the limiting hole. The limiting part can be automatically clamped into the limiting hole under the elastic force of the first elastic member to realize limiting, so that the rotation limiting operation of the driven rotating part is more convenient.

[0011] Further, the gantry comprises a horizontally arranged cross beam and a mounting frame, the rotating support is connected to the mounting frame, the upper end of the mounting frame is provided with an upward extending sliding rod, the sliding rod is slidingly connected to the cross beam in the vertical direction, and the driven rotating part is driven to move up and down relative to the cross beam for adjustment. When the book needs to be turned to different thicknesses, the thickness of the book can be adapted by the distance between the driven rotating part and the driving rotating part, and the practicability is better.

[0012] Further, the second elastic member is arranged between the mounting frame and the cross beam, one end of the second elastic member acts on the cross beam, and the other end acts on the mounting frame, so that the mounting frame always has a downward movement tendency relative to the cross beam. The driven rotating part is driven to have a downward movement tendency, and the driven rotating part can exert elastic clamping on the book during the clamping process of the driven rotating part and the driving rotating part together, further improving the clamping stability of the book.

[0013] Further, the top end of the sliding rod penetrates and exceeds the cross beam upwardly, and the top end of the sliding rod is further provided with a horizontal stopper, when the sliding rod slides downwardly to the maximum distance, the stopper abuts against the top end of the cross beam, so that the sliding rod cannot be separated from the cross beam. Not only the connection strength between the sliding rod and the cross beam is improved, but also the height adjustment operation of the driven rotating part is more convenient.

[0014] Further, the driving rotating part and the driven rotating part are connected through a transmission assembly, the transmission assembly comprises a transmission part and a positioning part, the transmission part is arranged in one of the driving rotating part and the driven rotating part, the positioning part is arranged in the other one of the driving rotating part and the driven rotating part, the transmission part is provided with a positioning groove extending in the vertical direction, and the positioning part is clamped in the transmission part through the positioning groove, so that the driving rotating part and the driven rotating part are relatively fixed in the horizontal direction. When the driving rotating part rotates, the transmission part moves synchronously, and the groove wall of the positioning groove pushes the positioning part, so that the driven rotating part rotates together with the driving rotating part, and the transmission between the two is more stable.

[0015] Further, the transmission part is arranged at the left and right ends of the driving rotating part, the positioning part is arranged at the left and right ends of the driven rotating part, and the upper end of the positioning groove is open. When the driven rotating part is installed and removed, the positioning parts at the two ends of the driven rotating part can be clamped into or separated from the positioning groove from the opening of the positioning groove, so that the installation and removal operation is simple.

[0016] Further, the first conveying belt and the second conveying belt are arranged on the rack in front and back, and are configured to convey the books backward, and the active rotating member is located at the interval between the first conveying belt and the second conveying belt; the rotation limiting mechanism has an initial state and a working state which can be switched, in the initial state, the first conveying belt, the second conveying belt and the surface of the active rotating member are flush, and the books move on the first conveying belt or the second conveying belt; when the books enter the active rotating member, the rotation limiting mechanism enters the working state, the active rotating member moves upward to be above the upper surfaces of the first conveying belt and the second conveying belt, and clamps the books together with the driven rotating member, then the active rotating member drives the driven rotating member to rotate 180° along the horizontal direction, so that the books between the two rotate synchronously, and finally the active rotating member moves downward to reset to the initial state. The books conveyed on the conveying belt are automatically turned, the turning operation is simple and does not need manual operation, so that the packing and transferring efficiency of the books is greatly improved, and the practicability is good.

[0017] Further, the frame is provided with a frame body, the frame body is connected to the frame through a lifting assembly and slides along the vertical direction; the frame body is provided with a first driving device, the active rotating member and the first driving device are connected through a first connecting shaft arranged vertically, and the first driving device is configured to drive the first connecting shaft to rotate along the circumference. The rotation and lifting of the active rotating member are adjusted by two independent mechanisms respectively, and the overall structure is relatively simple and the adjustment operation is relatively convenient.

[0018] The rotation limiting mechanism provided by the application, by arranging a limiting structure between the rotating member and the connecting hole, when the active rotating member rotates by a preset angle, the limiting piece is clamped into the limiting hole, so that the rotating member cannot continue to rotate relative to the rotating support member, and the driven rotating member cannot further rotate relative to the rotating support member, thereby offsetting the influence of inertia, the driven rotating member can rotate together with the active rotating member by a preset angle, and the books clamped between the two can maintain a flat posture, without the need for further flattening operation of the rotated books, thereby facilitating subsequent transmission and packaging operation, and improving the packaging and transferring efficiency of the books. BRIEF DESCRIPTION OF DRAWINGS

[0019] Other characteristics, objects and advantages of the application will become more apparent from the following detailed description of non-restrictive embodiments, made with reference to the accompanying drawings:

[0020] Figure 1 The three-dimensional structure schematic diagram of the rotation limiting mechanism of the frame provided by the embodiment of the application;

[0021] Figure 2 The internal structure schematic diagram of the frame provided by the embodiment of the application;

[0022] Figure 3A schematic diagram of a connection structure between a gantry and a driving rotary part provided for an embodiment of the present application is shown in FIG. 1.

[0023] Figure 4 A schematic diagram of a connection structure between a driven rotary part and a driving rotary part provided for an embodiment of the present application is shown in FIG. 2.

[0024] Figure 5 A schematic diagram of a connection structure between a frame and a lifting mechanism provided for an embodiment of the present application is shown in FIG. 3.

[0025] Figure 6 A schematic diagram of an internal structure of a rotary support provided for an embodiment of the present application is shown in FIG. 4.

[0026] Figure 7 A schematic diagram of a cross-sectional structure of a gantry provided for an embodiment of the present application is shown in FIG. 5.

[0027] Figure 8 A schematic diagram of a connection structure between a driven rotary part and a rotary support provided for an embodiment of the present application is shown in FIG. 6.

[0028] Figure 9 A schematic diagram of a connection structure between a rotary support and a crossbeam provided for an embodiment of the present application is shown in FIG. 7.

[0029] Figure 10 A schematic diagram of a side surface structure of a rotary limiting mechanism in an initial state provided for an embodiment of the present application is shown in FIG. 8.

[0030] Figure 11 A schematic diagram of a side surface structure of a rotary limiting mechanism when a main line rotary part is lifted in a working state provided for an embodiment of the present application is shown in FIG. 9.

[0031] Figure 12 A schematic diagram of a side surface structure of a rotary limiting mechanism when a main line rotary part is rotated in a working state provided for an embodiment of the present application is shown in FIG. 10.

[0032] The reference signs are as follows: 1 - gantry, 1a - first conveying belt, 1b - second conveying belt, 110 - driving rotary part, 120 - transmission part, 121 - positioning groove, 130 - frame, 131 - first connecting shaft, 132 - first motor, 133 - roller bearing, 140 - cam, 141 - second connecting shaft, 142 - second motor, 2 - gantry, 210 - driven rotary part, 211 - rotating part, 211a - shaft body, 211b - connecting ring, 212 - limiting hole, 213 - limiting part, 220 - rotary support, 221 - connecting hole, 222 - limiting part, 223 - sliding groove, 224 - first elastic part, 225 - ball bearing, 226 - end cover, 230 - crossbeam, 240 - mounting frame, 241 - first connecting rod, 242 - second connecting rod, 250 - sliding rod, 251 - second elastic part, 252 - stop part. DETAILED DESCRIPTION

[0033] The application will be described in further detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and are not a limitation on the utility model. In addition, it should be noted that only parts related to the utility model are shown in the drawings for ease of description.

[0034] Please refer to the drawings Figures 1-12 The embodiment of the application provides a rotating limiting mechanism, which comprises a rack 1 and a portal frame 2 arranged at the upper end of the rack 1. The portal frame 2 comprises a rotating support 220 and a driven rotating part 210. The rotating support 220 is provided with a connecting hole 221 extending in the vertical direction. The upper end of the driven rotating part 210 is provided with a rotating part 211 extending upward. The rotating part 211 is rotatably connected to the rotating support 220 through the connecting hole 221. The rotating part 211 can rotate in the circumferential direction in the connecting hole 221 and drive the driven rotating part 210 to rotate in the horizontal direction relative to the rotating support 220. The rack 1 is movably connected with a driving rotating part 110. The driving rotating part 110 and the driven rotating part 210 are located in the same vertical plane. The driving rotating part 110 is configured to move upward and clamp a book together with the driven rotating part 210, and drive the driven rotating part 210 to rotate in the horizontal direction to rotate the book. A limiting structure is further arranged between the rotating part 211 and the connecting hole 221. The limiting structure comprises a plurality of limiting parts 222 and limiting holes 212. The plurality of limiting parts 222 are arranged in the circumferential direction on the outer wall of the rotating part 211 and the inner wall of the connecting hole 221. The plurality of limiting holes 212 are correspondingly arranged on the other one of the outer wall of the rotating part 211 and the inner wall of the connecting hole 221. When the driven rotating part 210 is driven by the driving rotating part 110 to rotate by a preset angle, the limiting part 222 is clamped into the limiting hole 212, so that the driven rotating part 210 cannot further rotate relative to the rotating support 220.

[0035] In the embodiment, the limiting structure is arranged between the rotating part 211 and the connecting hole 221. When the driving rotating part 110 rotates by a preset angle, the limiting part 222 is clamped into the limiting hole 212, so that the rotating part 211 cannot continue to rotate relative to the rotating support 220, and the driven rotating part 210 cannot further rotate relative to the rotating support 220. Thus, the influence of inertia is offset. The driven rotating part 210 can rotate together with the driving rotating part 110 by a preset angle. The book clamped between the two parts can maintain a flat posture, without the need for further flattening operation after rotation, so as to facilitate subsequent transmission and packaging operation, and improve the packaging and transportation efficiency of the book.

[0036] Preferably, two groups of limiting members 222 and limiting holes 212 are symmetrically arranged between the rotating member 211 and the connecting hole 221, so that the limiting member 222 can be clamped into the limiting hole 212 whenever the driven rotating member 210 rotates 180°, and the driven rotating member 210 can stably drive the book to rotate 180° each time, so that the binding side of the book is reversed, facilitating packaging.

[0037] Preferably, the width of the driving rotating member 110 and the driven rotating member 210 is large, so that the driving rotating member 110 and the driven rotating member 210 can clamp a plurality of books at a time and rotate together, thereby further improving the packaging and transportation efficiency of the books.

[0038] Please refer to the accompanying drawings Figures 6-7 In some embodiments of the present application, a plurality of sliding grooves 223 are radially hollowed out on the rotating support 220, the limiting member 222 is slidingly connected to the rotating support 220 through the sliding groove 223, and a plurality of limiting holes 212 are correspondingly arranged on the outer wall of the rotating member 211.

[0039] In this embodiment, by opening the sliding groove 223 on the rotating support 220, when the driven rotating member 210 is driven to rotate, the limiting member 222 can slide into the sliding groove 223 and avoid the limiting hole 212, so that the rotating process of the rotating support 220 is more stable and smooth.

[0040] Please refer to the accompanying drawings Figure 6 The rotating member 211 includes a cylindrical shaft body 211a and a ring-shaped connecting ring 211b, and the connecting ring 211b and the shaft body 211a are fixed by key connection, so that the connecting ring 211b can be driven to rotate by the shaft body 211a, and the installation and disassembly between the two are relatively convenient. The limiting hole 212 is opened on the outer wall of the connecting ring 211b, and the processing operation is relatively convenient. Two upper and lower ball bearings 225 are embedded in the connecting hole 211, the shaft body 221a penetrates the inner ring of the two ball bearings 225, and the connecting ring 211b is clamped between the upper and lower ball bearings 225, which not only improves the connection strength between the rotating member 211 and the rotating support 220, but also makes the rotating process between the two more smooth. The top end of the rotating member 211 penetrates the upper end ball bearing 225, and the upper end of the rotating member 211 is also screwed with an end cover 226, and the diameter of the end cover 226 is larger than the inner ring of the ball bearing, so that the rotating member 211 is relatively fixed in the vertical direction relative to the rotating support 220, and the stability is good.

[0041] Of course, in other embodiments of the present application, the limiting member 222 can also be arranged on the outer wall of the rotating member 211, and the limiting hole 212 is correspondingly recessed on the inner wall of the connecting hole 221.

[0042] Please refer to the accompanying drawingsFigures 6-7 In some embodiments of the present application, a first elastic member 224 is arranged in the sliding groove 223, which pushes the limiting member 222, so that the limiting member 222 always has a tendency to be clamped into the limiting hole 212.

[0043] In the present embodiment, the first elastic member 224 is arranged, so that after the driven rotating member 210 rotates by a preset angle, the limiting member 222 can be automatically clamped into the limiting hole 212 to achieve limiting under the elastic force of the first elastic member 224, thereby making the rotation limiting operation of the driven rotating member 210 more convenient.

[0044] Preferably, the first elastic member 224 is a spring, so that the first elastic member 224 has better elastic deformation capacity and strength. The limiting member 222 is a steel ball, and the limiting hole 212 is a corresponding semicircular groove, so that when the driven rotating member 210 rotates again, the limiting member 222 can automatically extrude out of the limiting hole 212 along the inclined surface, making the rotation adjustment operation of the driven rotating member 210 more smooth.

[0045] Please refer to the accompanying drawings Figure 4 In some embodiments of the present application, the gantry 2 includes a horizontally arranged cross beam 230 and a mounting frame 240, the rotating support member 220 is connected to the mounting frame 240, and the mounting frame 240 is provided with an upwardly extending sliding rod 250 at the upper end, which is slidingly connected to the cross beam 230 in the vertical direction, thereby driving the driven rotating member 210 to move up and down relative to the cross beam 230 for adjustment.

[0046] In the present embodiment, the driven rotating member 210 is adjusted by moving up and down, thereby adjusting the distance between the driven rotating member 210 and the driving rotating member 110, so that when the book needs to be turned to different thicknesses, the distance between the driven rotating member 210 and the driving rotating member 110 can be adjusted to adapt to the thickness of the book, and the practicability is better.

[0047] Preferably, the mounting frame 240 is a square frame structure, including a first connecting rod 241 symmetrically arranged on the front and back of the rotating support member 220, and a second connecting rod 242 arranged on the left and right ends of the two first connecting rods 241, and the left and right second connecting rods 242 are both connected with the sliding rod 250, so that the sliding adjustment process between the mounting frame 240 and the cross beam 230 is more stable; and the first connecting rod 241 and the rotating support member 220 are fixed by screw connection, and the first connecting rod 241 and the second connecting rod 242 are also detachably connected by screw connection, so that the mounting frame 240 has a simple overall structure and is easy to install.

[0048] Please refer to the accompanying drawings Figures 3-4In some embodiments of the present application, a second elastic member 251 is further arranged between the mounting frame 240 and the cross beam 230, one end of the second elastic member 251 acting on the cross beam 230 and the other end acting on the mounting frame 240, so that the mounting frame 240 always has a tendency to move downward relative to the cross beam 230. The driven rotating member 210 is driven to have a tendency to move downward, and in the process of clamping the book by the driven rotating member 210 and the driving rotating member 110 together, the driven rotating member 210 can exert elastic clamping on the book by the elastic force of the second elastic member 251, further improving the clamping stability of the book.

[0049] Preferably, the second elastic member 251 is a spring, and the second elastic member 251 is sleeved on the sliding rod 250, which not only makes the installation of the second elastic member 251 convenient, but also improves the connection strength between the second elastic member 251 and the mounting frame 240, and is more stable.

[0050] Please refer to the accompanying drawings Figures 3-4 In some embodiments of the present application, the top end of the sliding rod 250 penetrates and exceeds the cross beam 230 upwardly, and the top end of the sliding rod 250 is further provided with a horizontal stopper 252, which abuts against the top end of the cross beam 230 when the sliding rod 250 slides downward to the maximum distance, so that the sliding rod 250 cannot be separated from the cross beam 230.

[0051] In the present embodiment, by arranging the stopper 252, the connection strength between the sliding rod 250 and the cross beam 230 is improved. Moreover, by placing clamping blocks with different heights between the stopper 252 and the cross beam 230, the height of the stopper 252 can be adjusted, and the height of the driven rotating member 210 at the bottom of the sliding rod 250 can be adjusted, so that the height adjustment operation of the driven rotating member 210 is relatively simple.

[0052] Please refer to the accompanying drawings Figure 4 In some embodiments of the present application, the driving rotating member 110 and the driven rotating member 210 are connected through a transmission assembly, the transmission assembly comprising a transmission member 120 and a positioning member 213, the transmission member 120 being arranged in one of the driving rotating member 110 and the driven rotating member 210, and the positioning member 213 being arranged in the other one of the driving rotating member 110 and the driven rotating member 210, the transmission member 120 being provided with a positioning groove 121 extending in the vertical direction, and the positioning member 213 being clamped on the transmission member 120 through the positioning groove 121, so that the driving rotating member 110 and the driven rotating member 210 are relatively fixed in the horizontal direction. When the driving rotating member 110 rotates, the transmission member 120 moves synchronously, and the groove wall of the positioning groove 121 pushes the positioning member 213, so that the driven rotating member 210 rotates together with the driving rotating member 210, making the transmission between the two more stable.

[0053] Please refer to the accompanying drawingsFigure 4 In some embodiments of the present application, the transmission member 120 is arranged at the left and right ends of the driving rotating member 110, the positioning member 213 is arranged at the left and right ends of the driven rotating member 210, and the upper end of the positioning groove 121 is open.

[0054] In the present embodiment, by arranging the upper side of the positioning groove 121 to be open, when the driven rotating member 210 is installed or removed, the positioning member 213 at the two ends of the driven rotating member 210 can be clamped into or separated from the positioning groove 121 from the opening of the positioning groove 121, so that the installation and removal operation is simple.

[0055] Of course, in other embodiments of the present application, the transmission member 120 can be arranged at the left and right ends of the driven rotating member 210, the positioning member 213 is arranged at the left and right ends of the driving rotating member 110, and the lower end of the positioning groove 121 is open.

[0056] Please refer to the accompanying drawings Figures 1-2 In some embodiments of the present application, the first conveying belt 1a and the second conveying belt 1b are arranged on the rack 1 in front and back, the first conveying belt 1a and the second conveying belt 1b are configured to convey books backward, and the driving rotating member 110 is located at the interval between the first conveying belt 1a and the second conveying belt 1b; the rotation limiting mechanism has an initial state and a working state which can be switched, in the initial state, the surface of the first conveying belt 1a, the second conveying belt 1b and the driving rotating member 110 are flush, and the books move on the first conveying belt 1a or the second conveying belt 1b; when the books enter the driving rotating member 110, the rotation limiting mechanism enters the working state, the driving rotating member 110 moves upward to above the upper surface of the first conveying belt 1a and the second conveying belt 1b, and clamps the books together with the driven rotating member 210, then the driving rotating member 110 drives the driven rotating member 210 to rotate 180° along the horizontal direction, so that the books between the two rotate synchronously, and finally the driving rotating member 110 moves downward to reset to the initial state.

[0057] In the present embodiment, by arranging the driving rotating member 110 between the first conveying belt 1a and the second conveying belt 1b, the books conveyed on the conveying belt can be automatically turned, the turning operation is simple and does not need manual operation, thereby greatly improving the packaging and transportation efficiency of the books, and the practicability is good.

[0058] Please refer to the accompanying drawings Figures 2-5In some embodiments of the present application, the frame 1 is provided with a frame body 130, which is connected to the frame 1 in a vertical sliding manner through a lifting assembly; the frame body 130 is provided with a first driving device; the driving rotary member 110 is connected to the first driving device through a vertically arranged first connecting shaft 131; and the first driving device is configured to drive the first connecting shaft 131 to rotate in a circumferential direction. The driving rotary member 110 is driven to rotate by the first driving device in the frame body 130, and the lifting of the frame body 130 is adjusted by the lifting assembly to realize the lifting of the driving rotary member 110. The rotation and the lifting of the driving rotary member 110 are respectively adjusted by two sets of independent mechanisms, so that the overall structure is relatively simple and the adjustment operation is relatively convenient.

[0059] Preferably, the driving mechanism is a first motor 132, which automatically drives the first connecting shaft 131 to rotate, so that the adjustment operation is convenient and the adjustment precision is higher.

[0060] In the drawings: Figure 5 The lifting mechanism includes a cam 140, a second connecting shaft 141, and a second motor 142. The second connecting shaft 141 is transversely arranged at the lower side of the frame body 130. The second motor 142 is connected to one end of the left and right ends of the second connecting shaft 141. The second connecting shaft 141 is fixed with two left and right symmetrical cams 140. The lower end of the frame body 130 is provided with two left and right symmetrical roller bearings 133. The top ends of the left and right cams 140 abut against the lower ends of the roller bearings 133. When the second motor 142 drives the second connecting shaft 141 to rotate in a circumferential direction, the cam 140 is driven to perform a rotary motion. The roller bearing 133 rotates along the curved surface of the cam 140 and drives the frame body 130 to rise or sink as a whole, thereby driving the driving rotary member 110 to lift. In this way, the driving rotary member 110 is lifted by the rotation of the cam 140, which not only has a simple and stable structure, but also has the advantages of fast transmission efficiency and high precision.

Claims

1. A rotation limiting mechanism, characterized by, The utility model provides a book rotating device, including frame (1) and gantry (2) set up in the upper end of frame (1), gantry (2) includes rotary support (220) and driven rotary piece (210), the connecting hole (221) of vertical direction extension is opened in rotary support (220), the upper end of driven rotary piece (210) is provided with the rotating piece (211) extending upwards, rotating piece (211) is rotatably connected in connecting hole (221) of rotary support (220), rotating piece (211) can rotate in the connecting hole (221) along the circumference and drive driven rotary piece (210) relative rotary support (220) rotates along the horizontal direction, the active rotary piece (110) of movable connection is set up on frame (1), active rotary piece (110) and driven rotary piece (210) are located in the same vertical plane, active rotary piece (110) is configured to move upwards and driven rotary piece (210) is clamped together with a book and drives driven rotary piece (210) rotates along the horizontal direction to rotate the book, the rotating piece (211) and the connecting hole (221) between still be provided with limiting structure, limiting structure includes a plurality of limit piece (222) and limit hole (212), a plurality of limit piece (222) are set up in one of rotating piece (211) outer wall and the inner wall of connecting hole (221) along the circumference, a plurality of limit hole (212) are set up in the other of rotating piece (211) outer wall and the inner wall of connecting hole (221) correspondingly, when driven rotary piece (210) is driven by active rotary piece (110) and rotates the preset angle, limit piece (222) is clamped into limit hole (212), so that driven rotary piece (210) can not rotate further relative rotary support (220).

2. The rotational stop mechanism of claim 1, wherein, A plurality of sliding grooves (223) are radially hollowed out on the rotary support (220), the limit piece (222) is slidably connected to the rotary support (220) through the sliding groove (223), and the plurality of limit holes (212) are correspondingly arranged on the outer wall of the rotating piece (211).

3. The rotational stop mechanism of claim 2, wherein, The first elastic member (224) is further arranged in the sliding groove (223), the first elastic member (224) pushes the limit piece (222), so that the limit piece (222) always has a tendency to be clamped into the limit hole (212).

4. The rotational stop mechanism of claim 1, wherein, The gantry (2) includes a horizontally arranged cross beam (230) and a mounting frame (240), the rotary support (220) is connected to the mounting frame (240), the mounting frame (240) is provided with an upwardly extending sliding rod (250) at the upper end, the sliding rod (250) is slidably connected to the cross beam (230) in the vertical direction, thereby driving the driven rotary piece (210) to move up and down relative to the cross beam (230) for adjustment.

5. The rotational limit mechanism of claim 4, wherein, A second elastic member (251) is arranged between the mounting frame (240) and the cross beam (230), one end of the second elastic member (251) acting on the cross beam (230), and the other end acting on the mounting frame (240), so that the mounting frame (240) always has a downward moving trend relative to the cross beam (230).

6. The rotational stop mechanism of claim 4, wherein, The top end of the sliding rod (250) penetrates and exceeds the cross beam (230) upwardly, and the top end of the sliding rod (250) is further provided with a horizontal stopper (252), which abuts against the top end of the cross beam (230) when the sliding rod (250) slides downwardly to the maximum distance, so that the sliding rod (250) cannot be separated from the cross beam (230).

7. The rotational stop mechanism of claim 1, wherein, The driving rotary member (110) and the driven rotary member (210) are connected through a transmission assembly, the transmission assembly comprising a transmission member (120) and a positioning member (213), the transmission member (120) being arranged in one of the driving rotary member (110) and the driven rotary member (210), and the positioning member (213) being arranged in the other one of the driving rotary member (110) and the driven rotary member (210), a positioning groove (121) extending in the vertical direction being formed in the transmission member (120), and the positioning member (213) being clamped in the transmission member (120) through the positioning groove (121), so that the driving rotary member (110) and the driven rotary member (210) are relatively fixed in the horizontal direction.

8. The rotational limit mechanism of claim 7, wherein, The transmission member (120) is arranged at the left and right ends of the driving rotary member (110), the positioning member (213) is arranged at the left and right ends of the driven rotary member (210), and the upper end of the positioning groove (121) is open.

9. The rotational stop mechanism of claim 1, wherein, The first conveying belt (1a) and the second conveying belt (1b) are arranged on the rack (1) in front of and behind each other, the first conveying belt (1a) and the second conveying belt (1b) are configured to convey books backward, and the driving rotary member (110) is located at the interval between the first conveying belt (1a) and the second conveying belt (1b); the rotary limiting mechanism has an initial state and a working state which can be switched, in the initial state, the surface of the first conveying belt (1a), the second conveying belt (1b) and the driving rotary member (110) are flush, and the books move on the first conveying belt (1a) or the second conveying belt (1b); when the books enter the driving rotary member (110), the rotary limiting mechanism enters the working state, the driving rotary member (110) moves upwardly to exceed the upper surface of the first conveying belt (1a) and the second conveying belt (1b), and clamps the books together with the driven rotary member (210), then the driving rotary member (110) drives the driven rotary member (210) to rotate 180° in the horizontal direction, so that the books between the two rotate synchronously, and finally the driving rotary member (110) moves downwardly to reset to the initial state.

10. The rotational stop mechanism of claim 1, wherein, The frame (1) is provided with a frame body (130), the frame body (130) is slidably connected to the frame (1) along the vertical direction through a lifting assembly; the frame body (130) is provided with a first driving device, the first driving device and the main rotating part (110) are connected through a first connecting shaft (131) arranged vertically, and the first driving device is configured to drive the first connecting shaft (131) to rotate along the circumference.

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