Turnover conveying device and method thereof

Abstract

The invention provides a turnover conveying device and method, and belongs to the field of logistics storage. A driving mode of realizing lifting and overturning of the roller assembly through rotation of the swing arm is provided, so that the purposes of adapting to site condition limitation and guaranteeing smooth logistics conveying and operation efficiency by automatic reciprocating stretching and retracting according to the use condition of the fire exit door are achieved. Comprising a set of swing arms which are driven by a driving device and can rotate in a reciprocating mode in the axial direction, a horizontal shaft is arranged on conveying equipment, the two ends of each swing arm are symmetrically connected with one ends of a set of connecting rod assemblies respectively, and the other ends of the two sets of connecting rod assemblies are symmetrically connected to a roller assembly respectively. Under the driving of the driving device, the swing arm rotates along the shaft connection position of the conveying equipment and synchronously drives the two sets of connecting rod assemblies to stretch out and draw back at the same time, so that the roller assembly is overturned upwards in the vertical direction to the connection position of the two sets of conveying equipment, or the roller assembly is overturned downwards in the vertical direction and stored in the conveying equipment.

Description

Technical Field

[0001] The present application proposes a conveying device and method for starting equipment flipping operation through fire linkage or manual control, which belongs to the field of logistics and warehousing. Background Art

[0002] In the existing logistics and warehousing sector, conveyor lines used in express delivery, e-commerce, and manufacturing enterprise warehouse and distribution centers are typically designed with distinct functional zones. To address fire and other emergencies, fire-fighting barriers are required between these zones. Accordingly, the conveyor lines require flip-off disconnect mechanisms at these locations to facilitate the raising and lowering of fire-resistant roller shutters.

[0003] Due to space limitations in different venues, existing equipment such as belt conveyors or roller conveyors with flipping functions leave a large gap when considering the opening and closing operations of fire doors to ensure the normal lifting and passing of fire doors. Due to the excessive gap between adjacent equipment, the packages / boxes being conveyed may get stuck or stall, and a smooth transition cannot be guaranteed. The current solution is usually to manually add transition plates, which is cumbersome to install and ineffective, and significantly affects the overall logistics transportation efficiency.

[0004] In view of this, this patent application is hereby filed. Summary of the Invention

[0005] The flipping conveying device and method proposed in this application aim to solve the problems existing in the above-mentioned prior art and propose a driving method of realizing the lifting and flipping of the roller assembly through the rotation of the swing arm, so as to realize automatic reciprocating extension and retraction according to the use of the fire door to adapt to the limitations of site conditions and ensure smooth logistics transportation and operational efficiency.

[0006] To achieve the above-mentioned design purpose, the flipping conveying device includes a group of swing arms driven by a driving device and capable of axially reciprocating rotation, with a horizontal axis provided on the conveying equipment. One end of a group of connecting rod assemblies is symmetrically connected to the two ends of the swing arm, and the other ends of the two groups of connecting rod assemblies are symmetrically connected to the roller assemblies. Under the drive of the driving device, the swing arm rotates along the connection with the axis of the conveying equipment while synchronously driving the two groups of connecting rod assemblies to extend and retract, so as to flip the roller assembly vertically upward to the connection point of the two groups of conveying equipment, or flip the roller assembly vertically downward and store it inside the conveying equipment.

[0007] Furthermore, the connecting rod assembly includes a first rod, a second rod, a third rod and a fourth rod, one end of the first rod is fixedly mounted on the swing arm, the other end of the first rod is hinged to one end of the second rod through the first hinge shaft, and the other end of the second rod is hinged to the roller assembly through the third hinge shaft; one end of the third rod is hinged to one side of the conveying equipment through the fourth hinge shaft, the other end of the third rod is hinged to one end of the fourth rod through the fifth hinge shaft, and the other end of the fourth rod is hinged to the roller assembly through the sixth hinge shaft; the third rod is hinged to the second rod through the second hinge shaft, the second hinge shaft is located between the first hinge shaft and the third hinge shaft, and the second hinge shaft is located between the fourth hinge shaft and the fifth hinge shaft; the first rod is mounted on the fixed end of the swing arm, the first hinge shaft, the second hinge shaft and the fourth hinge shaft, and the lines connecting the two of them form a parallelogram, and the lines connecting the second hinge shaft, the third hinge shaft, the fifth hinge shaft and the sixth hinge shaft form another parallelogram, and the two parallelograms are congruent.

[0008] Furthermore, the first rod, the second rod, the third rod and the fourth rod are all bent rod structures, and the sixth hinge is hinged to the horizontal center point of the drum assembly; when the drum assembly is flipped to a horizontal position, the third hinge is located vertically below the sixth hinge, and there is a gap between the third hinge and the fourth rod.

[0009] Furthermore, two sets of mounting frames are installed at the bottom of the conveying equipment, and the two ends of the swing arm are respectively arranged between the two sets of mounting frames through a set of bearing shafts with seats; the swing arm as a whole is a square axis structure, and a signal acquisition board and a proximity switch are respectively installed between the swing arm and the mounting frame on one side of the conveying equipment.

[0010] Furthermore, the driving device includes a servo motor and a reducer, the output end of the reducer is sleeved with a group of helical gears, and the helical gears are meshedly connected to a group of transmission gears sleeved on the end of the swing arm.

[0011] Furthermore, the roller assembly includes two groups of roller frames of the hinged connecting rod assembly, and at least two groups of unpowered rollers are axially arranged between the two groups of roller frames.

[0012] Based on the structural design of the above-mentioned overturning conveying device, this application also proposes the following overturning conveying method:

[0013] The flip conveyor device is installed on any one of two adjacent groups of conveying equipment, and a fire shutter is set vertically at the connection point of the two groups of conveying equipment; when an abnormal situation such as a fire occurs, the flip conveyor device is completely retracted under the conveying equipment through a fire signal trigger or manual control command, and the fire shutter is lowered vertically to isolate and close the internal and external conveying areas; under normal working conditions, the fire shutter is opened, and the roller assembly of the flip conveyor device is flipped vertically upward to a horizontal state to connect and transport the goods from the conveying equipment on one side to the conveying equipment on the other side.

[0014] Furthermore, at the bottom of the conveying equipment, both ends of the swing arm are respectively installed on the ground through a group of seated bearing shafts; the swing arm as a whole is a square shaft structure, and a signal acquisition board and a proximity switch are respectively installed between the swing arm and the mounting frame on one side of the conveying equipment; driven by the servo motor and the reducer, the helical gear rotates forward and backward while driving the transmission gear to rotate to further drive the swing arm to rotate back and forth along the axial direction, thereby realizing the connecting rod assembly driving the roller assembly to flip vertically; when the swing arm rotates axially from the initial state to the set maximum angle, the unpowered roller of the roller assembly is in a horizontal state, the signal acquisition board receives the in-position signal from the proximity switch side and feeds back to the servo motor, and the servo motor stops running.

[0015] Furthermore, the first rod is sleeved on the fixed end of the swing arm, and the lines connecting the first hinge axis, the second hinge axis and the fourth hinge axis in pairs form a parallelogram, and the lines connecting the second hinge axis, the third hinge axis, the fifth hinge axis and the sixth hinge axis in pairs form another parallelogram, and the two parallelograms are congruent; when the swing arm rotates back and forth axially, each group of the first rod, the second rod, the third rod and the fourth rod swing around a total of 6 hinge points in turn, and under the synchronous extension and contraction of the two groups of connecting rod assemblies, the second rod and the fourth rod jointly drive the roller assembly to flip 90° vertically.

[0016] Furthermore, the first rod, the second rod, the third rod and the fourth rod are all bent rod structures, and the sixth hinge is hinged to the horizontal center point of the roller frame of the roller assembly. When the roller assembly is flipped to a horizontal position, the third hinge is located vertically below the sixth hinge, and there is a gap between the third hinge and the fourth rod; if the goods press down the roller frame and flip it to either side and no longer maintain a horizontal state, the fourth rod will contact the third hinge, and the third hinge and the fourth rod will offset each other to form a mechanical limit to offset the tendency of the roller frame to flip to either side.

[0017] In summary, the flip conveying device and method proposed in this application have the following advantages:

[0018] 1. This application is installed on the side where the adjacent conveying equipment of the fire door is lifted. There are no other technical requirements for the conveying equipment structure and site conditions. It occupies a small installation space and has strong applicability.

[0019] 2. The drive device drives the swing arm and connecting rod assembly to realize the lifting and flipping of the roller assembly in a relatively small space, ensuring that the roller can be in a horizontal state when connecting goods between adjacent conveying equipment. This effectively solves the problem of goods stalling or even jamming at the connection point, allowing goods (packages or boxes) to pass smoothly, thereby correspondingly improving the conveying operation efficiency.

[0020] 3. The connecting rod assembly proposed in this application has good telescopic performance and mechanical limit function, occupies a small installation and extension space, ensures structural stability in a horizontal state, has high compressive resistance, protects the drive device from reverse impact, and is also suitable for the connection and transportation of larger and heavier goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will now be further described with reference to the following drawings.

[0022] Figure 1 and Figure 2 Schematic diagrams of logistics transportation site with fire curtains open and closed respectively;

[0023] Figure 3 is a schematic diagram of the flip conveying device described in this application;

[0024] Figure 4 It is a schematic diagram of the roller assembly flipped to a horizontal state;

[0025] Figure 5 yes Figure 4 A schematic diagram of the structure of the driving device in the state driving the connecting rod assembly through the swing arm;

[0026] Figures 6 to 8 They are schematic diagrams of the process of the connecting rod assembly driving the roller assembly to flip; DETAILED DESCRIPTION

[0027] Example 1, as Figure 1 and Figure 2 As shown, the flip conveying device 100 described in the present application is installed on any one of two adjacent groups of conveying equipment 200, and a fire curtain 300 is vertically arranged at the connection point of the two groups of conveying equipment 200.

[0028] When an abnormal situation such as a fire occurs, the flip conveyor device 100 is completely retracted under the conveying equipment 200 by a fire signal trigger or manual control command, and the fire curtain 300 is lowered vertically to isolate and seal the inner and outer conveying areas;

[0029] Under normal working conditions, the fire shutter 300 is opened, and the roller assembly of the overturning conveying device 100 is turned vertically upward to a horizontal state to transfer the goods from the conveying equipment 200 on one side to the conveying equipment 200 on the other side.

[0030] like Figures 3 to 8As shown, the overturning conveying device 100 includes a set of swing arms 5 driven by a driving device and capable of axially reciprocating rotation, with a horizontal axis provided on the conveying device 200. One end of a set of connecting rod assemblies 9 is symmetrically connected to each end of the swing arm 5, and the other ends of the two sets of connecting rod assemblies 9 are symmetrically connected to the roller assembly 8. Under the drive of the driving device, the swing arm 5 rotates along the axis of the conveying device 200 and simultaneously drives the two sets of connecting rod assemblies 9 to extend and retract, so as to vertically overturn the roller assembly 8 upward to the connection point between the two sets of conveying devices 200, or vertically overturn the roller assembly 8 downward and store it inside the conveying device 200.

[0031] Specifically, two sets of mounting frames 6 are installed at the bottom of the conveying equipment 200, and both ends of the swing arm 5 are respectively arranged between the two sets of mounting frames 6 through a set of seat bearings 4. A reinforcing rod 13 is also connected between the two sets of mounting frames 6 for reinforcement.

[0032] The driving device can preferably be a servo motor 1 and a reducer 2. The servo motor 1 and the reducer 2 are assembled and mounted on a set of mounting frames 6. The output end of the reducer 2 is provided with a set of helical gears 3. The helical gears 3 are meshed and connected to a set of transmission gears 7 mounted on the end of the swing arm 5. Under the drive of the servo motor 1 and the reducer 2, the helical gears 3 rotate forward and backward while driving the transmission gears 7 to rotate, thereby further driving the swing arm 5 to reciprocate in the axial direction, thereby realizing that the connecting rod assembly 9 drives the roller assembly 8 to flip vertically.

[0033] The roller assembly 8 comprises two groups of roller frames 81 of the hinged connecting rod assembly 9, and at least two groups of unpowered rollers 82 are axially arranged between the two groups of roller frames 81;

[0034] The connecting rod assembly 9 includes a first rod 91, a second rod 92, a third rod 93 and a fourth rod 94. One end of the first rod 91 is fixedly mounted on the swing arm 5, and the other end of the first rod 91 is hinged to one end of the second rod 92 through a first hinge shaft A. The other end of the second rod 92 is hinged to the roller frame 81 of the roller assembly 8 through a third hinge shaft C; one end of the third rod 93 is hinged to the mounting frame 6 on one side of the conveying device 200 through a fourth hinge shaft D, the other end of the third rod 93 is hinged to one end of the fourth rod 94 through a fifth hinge shaft E, and the other end of the fourth rod 94 is hinged to the roller frame 81 of the roller assembly 8 through a sixth hinge shaft F. ; The third rod 93 is hinged to the second rod 92 through the second hinge shaft B, and the second hinge shaft B is located between the first hinge shaft A and the third hinge shaft C, and the second hinge shaft B is located between the fourth hinge shaft D and the fifth hinge shaft E; through the control of the component shape, processing size accuracy and installation angle of the above-mentioned 4 groups of rods and 6 groups of hinge shafts, the first rod 91 is sleeved on the fixed end of the swing arm 5, and the lines connecting the first hinge shaft A, the second hinge shaft B and the fourth hinge shaft D form a parallelogram, and the lines connecting the second hinge shaft B, the third hinge shaft C, the fifth hinge shaft E and the sixth hinge shaft F form another parallelogram, and the two parallelograms are congruent.

[0035] As shown in the structural design of the connecting rod assembly 9, when the swing arm 5 rotates axially back and forth, each group of the first rod 91, the second rod 92, the third rod 93 and the fourth rod 94 swing in sequence around a total of 6 hinge points. Under the synchronous extension and contraction of the two groups of connecting rod assemblies 9, the second rod 92 and the fourth rod 94 jointly drive the roller assembly 8 to flip vertically.

[0036] Since the two parallelograms formed by the above-mentioned six groups of hinged shafts constitute a congruent geometric relationship, the roller assembly 8 can be flipped 90° vertically; that is, in the initial state, the roller assembly 8 is vertically located at the bottom of a group of conveying equipment 200. When the driving device transmission swing arm 5 axially rotates to the maximum angle, the connecting rod assembly 9 extends upward to the maximum stroke. At this time, the roller assembly 8 flips to the connection point between the two adjacent groups of conveying equipment 200 and the roller assembly 8 is in a horizontal state.

[0037] Furthermore, in order to ensure that the roller assembly 8 can maintain a stable state when it is flipped to the horizontal position, the following improvement scheme can be adopted: the first rod 91, the second rod 92, the third rod 93 and the fourth rod 94 are all bent rod structures, so that the above four groups of rods will not interfere with each other during the flipping process; and the sixth hinge shaft F is hinged to the horizontal center point of the roller frame 81 of the roller assembly 8. When the roller assembly 8 is flipped to the horizontal position, the third hinge shaft C is located vertically below the sixth hinge shaft F, and there is a gap between the third hinge shaft C and the fourth rod 94; if the goods press down the roller frame 81 and make it If the roller frame 81 flips to either side and no longer maintains a horizontal state, the fourth rod 94 will abut against the third hinge shaft C. The third hinge shaft C and the fourth rod 94 will abut against each other to form a mechanical limit to offset the tendency of the roller frame 81 to flip to either side, thereby ensuring that the roller frame 81 is always in a very close to horizontal state, ensuring that the unpowered roller 82 is horizontally connected between the two adjacent conveying devices 200 to maintain the speed of the goods when passing and avoid jamming due to stalling. On the other hand, it can also ensure that the servo motor 1 and the reducer 2 serving as the power source are protected from damage by reverse impact.

[0038] The swing arm 5 is a square axis structure as a whole, and a signal acquisition board 11 and a proximity switch 12 are respectively installed between the swing arm 5 and the mounting frame 6 on one side of the conveying equipment 200; when the swing arm 5 is axially rotated from the initial state to the set maximum angle, the unpowered roller 82 of the roller assembly 8 is in a horizontal state, the signal acquisition board 11 receives the in-position signal from the proximity switch 12 side and feeds it back to the servo motor 1, and the servo motor 1 stops running.

[0039] Based on the innovative design of the above-mentioned flipping conveying device 100, the present application also proposes the following flipping conveying method:

[0040] The overturning conveying device 100 is installed on any one of two adjacent groups of conveying equipment 200, and a fire rolling curtain 300 is vertically arranged at the connection point of the two groups of conveying equipment 200.

[0041] When an abnormal situation such as a fire occurs, the flip conveyor device 100 is completely retracted under the conveying equipment 200 by a fire signal trigger or manual control command, and the fire curtain 300 is lowered vertically to isolate and seal the inner and outer conveying areas;

[0042] Under normal working conditions, the fire shutter 300 is opened, and the roller assembly of the overturning conveying device 100 is turned vertically upward to a horizontal state to transfer the goods from the conveying equipment 200 on one side to the conveying equipment 200 on the other side.

[0043] Specifically, at the bottom of the conveying device 200, both ends of the swing arm 5 are axially mounted via a set of seat bearings 4; the swing arm 5 as a whole is a square shaft structure, and a signal acquisition board 11 and a proximity switch 12 are respectively installed between the swing arm 5 and the mounting frame 6 on one side of the conveying device 200;

[0044] Driven by the servo motor 1 and the reducer 2, the bevel gear 3 rotates forward and backward while driving the transmission gear 7 to rotate to further drive the swing arm 5 to rotate back and forth axially, so that the connecting rod assembly 9 drives the roller assembly 8 to flip vertically; when the swing arm 5 rotates axially from the initial state to the set maximum angle, the unpowered roller 82 of the roller assembly 8 is in a horizontal state, the signal acquisition board 11 receives the in-position signal from the proximity switch 12 side and feeds it back to the servo motor 1, and the servo motor 1 stops running.

[0045] The connecting rod assembly 9 includes a first rod 91, a second rod 92, a third rod 93 and a fourth rod 94. One end of the first rod 91 is fixedly mounted on the swing arm 5, and the other end of the first rod 91 is hinged to one end of the second rod 92 through a first hinge shaft A. The other end of the second rod 92 is hinged to the roller frame 81 of the roller assembly 8 through a third hinge shaft C; one end of the third rod 93 is hinged to the mounting frame 6 on one side of the conveying device 200 through a fourth hinge shaft D, the other end of the third rod 93 is hinged to one end of the fourth rod 94 through a fifth hinge shaft E, and the other end of the fourth rod 94 is hinged to the roller frame 81 of the roller assembly 8 through a sixth hinge shaft F. ; The third rod 93 is hinged to the second rod 92 through the second hinge shaft B, and the second hinge shaft B is located between the first hinge shaft A and the third hinge shaft C, and the second hinge shaft B is located between the fourth hinge shaft D and the fifth hinge shaft E; through the control of the component shape, processing size accuracy and installation angle of the above-mentioned 4 groups of rods and 6 groups of hinge shafts, the first rod 91 is sleeved on the fixed end of the swing arm 5, and the lines connecting the first hinge shaft A, the second hinge shaft B and the fourth hinge shaft D form a parallelogram, and the lines connecting the second hinge shaft B, the third hinge shaft C, the fifth hinge shaft E and the sixth hinge shaft F form another parallelogram, and the two parallelograms are congruent.

[0046] When the swing arm 5 rotates axially back and forth, each group of the first rod 91, the second rod 92, the third rod 93 and the fourth rod 94 swing in sequence around a total of 6 hinge points. Under the synchronous extension and contraction of the two groups of connecting rod assemblies 9, the second rod 92 and the fourth rod 94 jointly drive the roller assembly 8 to flip 90° vertically.

[0047] The first rod 91, the second rod 92, the third rod 93, and the fourth rod 94 are all bent rod structures, so the four rod groups do not interfere with each other during the turning process. In addition, the sixth hinge axis F is hinged to the horizontal center point of the roller frame 81 of the roller assembly 8. When the roller assembly 8 is turned to the horizontal position, the third hinge axis C is located vertically below the sixth hinge axis F, and there is a gap between the third hinge axis C and the fourth rod 94. If the cargo presses down on the roller frame 81 and causes it to turn to either side and no longer maintain a horizontal state, the fourth rod 94 will contact the third hinge axis C. The third hinge axis C and the fourth rod 94 will form a mechanical limit by abutting against each other to offset the tendency of the roller frame 81 to turn to either side, thereby ensuring that the roller frame 81 always remains very close to the horizontal state. This ensures that the unpowered roller 82 is horizontally connected between the two adjacent conveying devices 200 to maintain the speed of the cargo during passage and prevent stalling and jamming. On the other hand, it also protects the servo motor 1 and reducer 2, which serve as the power source, from damage due to reverse impact.

[0048] The embodiments described above, in conjunction with the accompanying drawings, are merely preferred solutions for achieving the objectives of the present invention. Those skilled in the art will readily be able to derive alternative structures consistent with the design concepts of the present invention based on these insights. Other structural features derived from these alternatives are also intended to fall within the scope of the present invention.

Claims

1. A turning conveying device, characterized in that: The invention comprises a set of swing arms driven by a driving device and capable of axially reciprocating rotation, with a horizontal axis provided on the conveying device, one end of a set of connecting rod assemblies being symmetrically connected to the two ends of the swing arms, and the other ends of the two sets of connecting rod assemblies being symmetrically connected to the roller assemblies; Driven by the driving device, the swing arm rotates along the connection with the conveying equipment shaft and synchronously drives the two sets of connecting rod assemblies to extend and retract, so as to flip the roller assembly vertically upward to the connection point of the two sets of conveying equipment, or flip the roller assembly vertically downward and store it inside the conveying equipment.

2. The overturning conveying device according to claim 1, characterized in that: The connecting rod assembly includes a first rod, a second rod, a third rod and a fourth rod, one end of the first rod is fixedly mounted on the swing arm, the other end of the first rod is hinged to one end of the second rod through the first hinge shaft, and the other end of the second rod is hinged to the roller assembly through the third hinge shaft; one end of the third rod is hinged to one side of the conveying equipment through the fourth hinge shaft, the other end of the third rod is hinged to one end of the fourth rod through the fifth hinge shaft, and the other end of the fourth rod is hinged to the roller assembly through the sixth hinge shaft; the third rod is hinged to the second rod through the second hinge shaft, the second hinge shaft is located between the first hinge shaft and the third hinge shaft, and the second hinge shaft is located between the fourth hinge shaft and the fifth hinge shaft; the first rod is mounted on the fixed end of the swing arm, and the first hinge shaft, the second hinge shaft and the fourth hinge shaft are connected in pairs to form a parallelogram, and the second hinge shaft, the third hinge shaft, the fifth hinge shaft and the sixth hinge shaft are connected in pairs to form another parallelogram, and the two parallelograms are congruent.

3. The overturning conveying device according to claim 2, characterized in that: The first rod, the second rod, the third rod and the fourth rod are all bent rod structures, and the sixth hinge shaft is hinged to the horizontal center point of the roller assembly; When the drum assembly is flipped to a horizontal position, the third hinge shaft is located vertically below the sixth hinge shaft, and a gap is left between the third hinge shaft and the fourth rod.

4. The overturning conveying device according to claim 1, 2 or 3, characterized in that: Two sets of mounting frames are installed at the bottom of the conveying equipment, and the two ends of the swing arm are respectively arranged between the two sets of mounting frames through a set of bearing shafts with seats; the swing arm as a whole is a square shaft structure, and a signal acquisition board and a proximity switch are respectively installed between the swing arm and the mounting frame on one side of the conveying equipment.

5. The overturning conveying device according to claim 1, 2 or 3, characterized in that: The driving device includes a servo motor and a reducer. The output end of the reducer is sleeved with a group of helical gears, which are meshed and connected with a group of transmission gears sleeved on the end of the swing arm.

6. The overturning conveying device according to claim 1, 2 or 3, characterized in that: The roller assembly comprises two groups of roller frames of an articulated connecting rod assembly, and at least two groups of unpowered rollers are axially arranged between the two groups of roller frames.

7. A method for turning over and conveying using the turning over and conveying device according to any one of claims 1 to 6, characterized in that: The overturning conveying device is installed on any one of two adjacent conveying equipment sets, and a fire curtain is vertically installed at the junction of the two conveying equipment sets; When an abnormal situation such as fire occurs, the flip conveyor device will be completely retracted under the conveying equipment through the fire signal trigger or manual control command, and the fire curtain will be lowered vertically to isolate and seal the internal and external conveying areas; Under normal working conditions, the fire shutter opens and the roller assembly of the flip conveyor device flips vertically upward to a horizontal state to transfer the goods from the conveying equipment on one side to the conveying equipment on the other side.

8. The overturning conveying method according to claim 7, characterized in that: At the bottom of the conveying equipment, the two ends of the swing arm are respectively installed through a set of bearing blocks; the swing arm as a whole is a square shaft structure, and a signal acquisition board and a proximity switch are respectively installed between the swing arm and the mounting frame on one side of the conveying equipment; Driven by the servo motor and the reducer, the helical gear rotates forward and backward while driving the transmission gear to rotate to further drive the swing arm to rotate back and forth axially, thereby realizing that the connecting rod assembly drives the roller assembly to flip vertically; when the swing arm rotates axially from the initial state to the set maximum angle, the unpowered roller of the roller assembly is in a horizontal state, the signal acquisition board receives the in-position signal from the proximity switch side and feeds it back to the servo motor, and the servo motor stops running.

9. The overturning conveying method according to claim 7, characterized in that: The first rod is mounted on the fixed end of the swing arm, and the lines connecting the first hinge axis, the second hinge axis, and the fourth hinge axis form a parallelogram. The lines connecting the second hinge axis, the third hinge axis, the fifth hinge axis, and the sixth hinge axis form another parallelogram. The two parallelograms are congruent. When the swing arm rotates back and forth axially, each group of first rods, second rods, third rods and fourth rods swing around a total of 6 hinge points in sequence. Under the synchronous extension and contraction of the two groups of connecting rod assemblies, the second rod and the fourth rod jointly drive the roller assembly to flip 90° vertically.

10. The overturning conveying method according to claim 9, characterized in that: The first rod, the second rod, the third rod and the fourth rod are all bent rod structures, and the sixth hinge is hinged to the horizontal center point of the roller frame of the roller assembly. When the roller assembly is flipped to a horizontal position, the third hinge is located vertically below the sixth hinge, and there is a gap between the third hinge and the fourth rod. If the goods press down the roller frame and cause it to flip to either side and no longer maintain a horizontal state, the fourth rod will contact the third hinge, and the third hinge and the fourth rod will offset each other to form a mechanical limit to offset the tendency of the roller frame to flip to either side.

Images