Combined turning and steering machine

Abstract

The application provides a compound type turnover steering machine, and belongs to the technical field of packaging equipment. The compound type turnover steering machine solves the technical problems of low efficiency and poor stability in the prior art. The first horizontal conveyor is arranged on the rack of the compound type turnover steering machine, the image recognition mechanism is arranged above the feeding end of the first horizontal conveyor, the same direction turnover mechanism is arranged on the discharging end of the first horizontal conveyor, the same direction turnover mechanism can clamp and forwardly convey the packaging bag, and the same direction turnover mechanism rotates around the axis of the conveying direction of the packaging bag to turn over the packaging bag in the same direction. The second horizontal conveyor is arranged on the end of the same direction turnover mechanism away from the first horizontal conveyor, the second horizontal conveyor is used for receiving the packaging bag after the same direction turnover mechanism turns over the packaging bag, the second secondary turnover mechanism is arranged on the discharging end of the second horizontal conveyor, and the second secondary turnover mechanism is used for exchanging the front end and the rear end of the packaging bag and turning over the front and back surfaces of the packaging bag. The application has the advantages of high efficiency, high reliability and high applicability.

Description

Technical Field

[0001] This invention belongs to the field of packaging equipment technology, and in particular relates to a composite flipping and turning machine. Background Technology

[0002] In automated packaging lines, after completing processes such as bag making, filling, and sealing, packaging bags are usually scattered randomly on the conveyor line. However, before entering subsequent processes such as boxing, cartoning, or QR code association, all packaging bags are typically required to maintain an arrangement with the same face (e.g., front facing up) and the same orientation (e.g., bag opening or bottom facing the same direction) to meet the high standard of operation requirements of automated equipment.

[0003] In existing technologies, various handling devices are commonly used to correct the posture of packaging bags. For example, a solution involves using suction cups to grip one side of the packaging bag and then flipping it over using a cylinder or rotary actuator. While this structure can achieve single-bag flipping, it is usually an intermittent action, and the suction cup gripping response speed is limited, making it difficult to adapt to high-speed continuous conveying. Furthermore, pneumatic systems are quite sensitive to the material, air permeability, and surface flatness of the packaging bags; they are prone to detaching when gripping thin or highly breathable bags, leading to flipping failure.

[0004] Other methods employ fixed spiral rods or inclined baffles along the conveying path, relying on the inertia or friction of the packaging bag to forcibly scrape and reverse it. This method easily damages the surface of the packaging bag, especially surfaces with printed patterns or laminations, and the success rate of reversal is significantly affected by fluctuations in bag size, weight, and conveying speed, resulting in poor compatibility with different bag types.

[0005] Therefore, how to provide a device with a compact structure that can continuously complete the same-side flipping and end-to-end swapping of packaging bags in one go is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing a composite flipping and turning machine that can stably complete the same-side flipping and end-to-end reversal of packaging bags.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: This composite flipping and turning machine includes a frame, on which a first horizontal conveyor is provided. An image recognition mechanism is provided above the infeed end of the first horizontal conveyor, and a co-directional flipping mechanism is provided at the discharge end of the first horizontal conveyor. The co-directional flipping mechanism can clamp and convey packaging bags forward, while rotating itself around the axis of the conveying direction of the packaging bags to flip the packaging bags in the same direction. A second horizontal conveyor is provided at the end of the co-directional flipping mechanism away from the first horizontal conveyor. The second horizontal conveyor is used to receive the packaging bags flipped by the co-directional flipping mechanism. A secondary flipping mechanism is provided at the discharge end of the second horizontal conveyor. The secondary flipping mechanism is used to swap the front and rear ends of the packaging bags and flip them to their front and back sides.

[0008] By integrating the image recognition mechanism, the same-direction flipping mechanism, and the secondary flipping mechanism sequentially along the conveying direction, the same-direction flipping mechanism, which clamps and rotates around the conveying axis, reliably completes the flipping and reversal of the packaging bags as they move dynamically forward. The rear-mounted secondary flipping mechanism is specifically responsible for rear-end switching and secondary flipping of the packaging bags, achieving the effect of simultaneously correcting the combined postures of "head-to-tail orientation" and "front-to-back orientation." The packaging bags can automatically complete the sorting requirements of being arranged with the same side facing upwards and in the same direction without stopping the machine, thus improving production line efficiency.

[0009] In the aforementioned composite flipping and turning machine, both the first and second horizontal conveyors include a conveyor frame. The conveyor frame is equipped with a support plate, and the two ends of the support plate are respectively equipped with a driving roller and a driven roller. A horizontal conveyor belt is positioned between the driving roller, the support plate, and the driven roller. A sheet-like support strip is positioned between the horizontal conveyor belt and the support plate. The driving roller is connected to a driving roller rotation drive assembly. The support plate also has guide strips located on both sides of the horizontal conveyor belt, and the guide strips have guide bevels on their inner inlets. By setting the support plate and sheet-like support strips below the horizontal conveyor belt, continuous support is provided for the horizontal conveyor belt, ensuring the stability of the bag conveying. Simultaneously, the guide strips on both sides of the horizontal conveyor belt and the guide bevels at their inlets limit the positioning of the bags entering the conveyor line, providing a positional basis for subsequent operations, thereby improving the overall operational reliability.

[0010] In the aforementioned composite turning and steering machine, the co-directional turning mechanism includes a base, on which a rotating ring is provided, and on which two conveyor belts are arranged radially symmetrically along their rotation center axis, forming a bag feeding channel between the two conveyor belts. An axial limiting circumferential sliding structure is provided between the base and the rotating ring, and the rotating ring is connected to a rotary drive mechanism for driving the rotating ring to rotate circumferentially.

[0011] By symmetrically arranging two conveyor belts radially along the rotary ring, a clamping bag feeding channel is formed. An axially limited circumferential sliding structure is used between the rotary ring and the base to ensure smooth circumferential rotation for flipping. A rotary drive mechanism drives the entire rotary ring to rotate, causing the two conveyor belts, along with the clamped packaging bags, to simultaneously flip 180 degrees. During this process, the packaging bags remain in a controlled conveying state and do not need to leave the channel, thus achieving high-speed flipping without interrupting continuous conveying. All packaging bags are output with the same side facing upwards.

[0012] In the aforementioned composite turning and steering machine, the axial limiting circumferential sliding structure includes a conveying channel mounted on a base. A loop groove is provided on the inner wall of the conveying channel, and the outer ring of a bearing is disposed within the loop groove. The inner ring of the bearing is fixed to the rotating ring. The rolling friction characteristics of the bearing enable the rotating ring to maintain low-resistance and stable rotation even when subjected to radial loads from the conveyor belt and packaging bags, ensuring the flexibility and reliability of the turning action.

[0013] In the aforementioned composite flipping steering gear, the rotating ring includes a first inner ring and a second inner ring, which are detachably connected. The outer end of the first inner ring is integrally connected to a first end cover, and the outer end of the second inner ring is integrally connected to a second end cover. An inner ring mounting groove is formed between the first end cover, the first inner ring, and the second end cover, and the bearing inner ring is embedded in the inner ring mounting groove. The design of connecting the first inner ring to the first end cover and the second inner ring to the second end cover can form a stable axial clamping of the bearing inner ring after tightening, ensuring the coaxiality of the bearing inner ring and the rotating ring, and preventing axial movement of the bearing, thereby ensuring the reliability of the rotating ring's flipping action.

[0014] In the aforementioned composite tilting steering gear, the rotary drive mechanism includes a synchronous pulley ring connected to and rotating synchronously with one end of the rotary ring. A rotary drive assembly is connected to the synchronous pulley ring, and the rotary drive assembly includes a fixedly mounted rotary drive module, which is connected to the synchronous pulley ring via a transmission belt. By coaxially and fixedly connecting the synchronous pulley ring to one end of the rotary ring, the driving force is applied to the end of the rotary ring. The synchronous pulley ring, as an independent power receiving element, avoids the structural weakening caused by directly machining transmission features onto the rotary ring body. This design, separating the drive structure from the load-bearing function, extends transmission life and reduces maintenance costs.

[0015] In the aforementioned composite turning steering gear, one end of the slewing ring is also provided with a drag chain outer arc-shaped bracket connected to the base. The inner side of the drag chain outer arc-shaped bracket is provided with a drag chain inner arc-shaped bracket. The drag chain inner arc-shaped bracket is fixed on the slewing ring. A drag chain unit is provided between the drag chain outer arc-shaped bracket and the drag chain inner arc-shaped bracket. The drag chain outer arc-shaped bracket is connected to the base through several circumferentially distributed extended support columns. The synchronous wheel ring of the slewing drive mechanism is provided between the drag chain outer arc-shaped bracket and the base.

[0016] The outer arc-shaped bracket and the inner arc-shaped bracket of the cable chain form an arc-shaped channel to accommodate the cable chain unit, so that the cable chain always moves along a predetermined arc-shaped trajectory when rotating in a circular motion, thereby protecting the cable and ensuring the stability of long-term operation.

[0017] In the aforementioned composite turning steering machine, the drag chain outer arc bracket includes a first arc back plate and a first arc outer plate. The first arc back plate is connected to the base. One end of the drag chain unit is set on the first arc outer plate, and a first arc short inner plate connected to it is fixed on the inner side of the first arc back plate at this end. The inner end of the first arc short inner plate is provided with a support body for approaching the drag chain unit.

[0018] The inner arc-shaped support of the cable chain includes a second arc-shaped back plate and a second arc-shaped inner circumference plate. The second arc-shaped back plate is connected to the rotary ring. The other end of the cable chain unit is fixed to the second arc-shaped inner circumference plate. A second arc-shaped protective plate is provided between the second arc-shaped inner circumference plate and the first arc-shaped short inner circumference plate. The second arc-shaped protective plate is located outside the opening of the second arc-shaped back plate. The two ends of the second arc-shaped protective plate are respectively connected to the two ends of the second arc-shaped back plate through arc-shaped connecting plates.

[0019] A motor harness is provided between the outer arc-shaped support of the cable chain and the cable chain unit. The inner end of the motor harness is connected to the conveyor belt motor. Several harness binding buckles are distributed along the conveyor belt conveying direction on the roller seat of the conveyor belt. By fixing the outer arc-shaped support of the cable chain to the base as a stationary end support and fixing the inner arc-shaped support of the cable chain to the rotating ring as a follower end support, an inner and outer arc-shaped guide channel is formed, creating a closed protection that prevents external foreign objects from entering the cable chain's movement space and prevents the cable chain from interfering with surrounding components when swinging with the rotating ring.

[0020] In the aforementioned composite turning machine, the conveyor belt is connected to the rotary ring via height adjustment seats located on both sides. The height adjustment seat is provided with at least one strip hole, and the rotary ring between the two conveyor belts is also provided with spacing adjustment marks located on both sides.

[0021] The conveyor belt includes roller seats located on both sides, which are integrated with the height adjustment seat. Between the roller seats on both sides, there is a drive roller near the discharge end of the bag feeding channel, a support roller near the inlet end of the bag feeding channel and located on the same plane as the drive roller, and an inclined roller that is farther away from the conveying surface of the conveyor belt and closer to the end of the roller seat relative to the support roller. The drive roller, support roller and inclined roller are covered with an annular belt. The drive roller, support roller and inclined roller are rotatably connected to the roller seats on both sides. A roller adjustment assembly is provided between the inclined roller and the end of the roller seat.

[0022] The roller base is equipped with a motor base, the motor base is equipped with a conveyor belt motor, the output end of the conveyor belt motor is equipped with a drive gear, the drive gear is connected to the transmission gear on the drive roller shaft through a synchronous belt, and the drive gear, the synchronous belt and the transmission gear are also equipped with a synchronous belt cover.

[0023] By integrating the roller seat with the height adjustment seat, the load-bearing rigidity is enhanced, ensuring that the relative position of the roller axis remains unchanged after adjustment. The main conveying surface is formed by the drive roller and the support roller being on the same plane, and an inclined roller is added at the feed end, away from the conveying surface and close to the end of the roller seat. This allows the annular belt to naturally form an outward-expanding guide slope at the feed inlet, facilitating the smooth entry of packaging bags into the bag feeding channel.

[0024] In the above-mentioned composite turning machine, the secondary turning mechanism includes supports on both sides, and secondary turning shafts are respectively provided on the supports on both sides. Secondary conveyor belts are provided on the two secondary turning shafts and arranged radially symmetrically along their turning center axis. A second bag feeding channel is formed between the two secondary conveyor belts. The secondary turning shafts are fixedly connected to the second conveyor belts.

[0025] A flipping drive assembly is connected to the secondary flipping shaft on one side. The flipping drive assembly includes a fixedly installed flipping drive module. The flipping drive module is connected to the flipping wheel ring through a flipping transmission belt. The flipping wheel ring is fixedly connected to the secondary flipping shaft.

[0026] A conveying drive assembly is connected to the secondary flipping shaft on one side. The conveying drive assembly includes a fixedly installed conveying drive module. The conveying drive module is connected to a power transmission mechanism located on one side of the secondary flipping shaft via a conveying transmission belt. The power transmission mechanism is connected to the second drive rollers of the two second conveyor belts respectively to drive the two second conveyor belts to rotate in opposite directions, thereby realizing the conveying of packaging bags in the second bag feeding channel.

[0027] The flipping drive assembly that drives the entire mechanism to rotate and the conveying drive assembly that drives the second conveyor belt to rotate in the opposite direction are set up independently, so that the two sets of movements do not interfere with each other. This design ensures that while the packaging bag is stably clamped and conveyed in the second bag feeding channel formed by the two second conveyor belts, the entire conveying channel can flip around the axis, thereby accurately and smoothly completing the front and rear end swapping and front and back flipping of the packaging bag synchronously, with reliable operation.

[0028] Compared with existing technologies, the advantages of this composite flipping and turning machine are: 1. The packaging bag flipping process is carried out in a conveying state, resulting in higher efficiency. 2. Stable operation and high flipping accuracy. 3. Strong adaptability and convenient adjustment. 4. It can achieve front and back positioning and end-to-end orientation positioning of the packaging bag. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure provided by the present invention.

[0030] Figure 2 This is a schematic diagram of the horizontal conveyor structure provided by the present invention.

[0031] Figure 3 This is a schematic diagram of the same-direction flipping mechanism provided by the present invention.

[0032] Figure 4 This is a schematic diagram of one side of the unidirectional flipping mechanism provided by the present invention.

[0033] Figure 5 This is a schematic diagram of the other side of the same-direction flipping mechanism provided by the present invention.

[0034] Figure 6 This is a cross-sectional schematic diagram of the same-direction flipping mechanism provided by the present invention.

[0035] Figure 7 This is a schematic diagram of the internal structure of the conveyor belt provided by the present invention.

[0036] Figure 8 This is a schematic diagram of the secondary flipping mechanism provided by the present invention.

[0037] Figure 9 This is a side view of the secondary flipping mechanism provided by the present invention.

[0038] Figure 10 This is a schematic diagram of the power transmission mechanism provided by the present invention.

[0039] In the diagram, the components are: frame 1, first horizontal conveyor 11, second horizontal conveyor 12, co-directional flipping mechanism 13, base 131, image recognition mechanism 14, control center 141, supplementary lighting component 142, display screen 143, secondary flipping mechanism 15, bracket 151, conveyor frame 16, with support plate 161, drive roller 162, driven roller 163, horizontal conveyor belt 164, with support strip 165, guide strip 166, guide bevel 167, drive roller rotation drive assembly 17, rotation drive assembly mounting plate 171, rotation drive motor 172, rotation drive belt 173, rotary ring 2, first inner ring 21, and first... End cap 211, second inner ring 22, second end cap 221, inner ring mounting groove 23, inner ring 24, annular end cap 241, drag chain outer arc bracket 25, first arc back plate 251, first arc outer plate 252, first arc short inner plate 253, support body 254, extended support column 255, drag chain inner arc bracket 26, second arc back plate 261, second arc inner plate 262, second arc protective plate 263, arc connecting plate 264, drag chain unit 27, motor wiring harness 271, limit block 28, buffer block 281, limit stop 282, proximity sensor 283, conveyor belt 3, height adjustment 31. Seat 311, Strip Hole 311, Spacing Adjustment Marker 312, Roller Seat 32, Wire Harness Binding Buckle 321, Drive Roller 33, Transmission Gear 331, Support Roller 34, Inclined Roller 35, Circular Belt 36, Motor Seat 37, Conveyor Belt Motor 371, Drive Gear 372, Synchronous Belt 373, Synchronous Belt Cover 374, Roller Adjustment Assembly 38, Bag Feeding Channel 4, Axial Limiting and Circumferential Sliding Structure 5, Conveying Channel 51, U-Shaped Groove 52, Bearing 53, Rotary Drive Mechanism 6, Synchronous Wheel Ring 61, Rotary Drive Assembly 62, Rotary Driver 621, Transmission Gear Unit 622, Rotary Drive Module 63. Rotary module motor 631, reducer 632, transmission belt 64, secondary flipping shaft 7, flipping wheel rim 71, flipping drive assembly 72, flipping drive module 73, flipping motor 731, flipping reducer 732, flipping transmission belt 74, second conveyor belt 8, second bag feeding channel 81, second drive roller 82, second roller seat 83, second driven roller 84, second annular belt 85, conveying drive assembly 9, conveying drive module 91, conveying motor 911, conveying transmission belt 92, power transmission mechanism 93, conveying wheel rim 931, conveying driven wheel rim 932, tensioning wheel 933, roller transmission belt 934. Detailed Implementation

[0040] Example 1

[0041] like Figures 1 to 10As shown, this composite flipping and turning machine includes a frame 1, on which a first horizontal conveyor 11 is provided. An image recognition mechanism 14 is provided above the feeding end of the first horizontal conveyor 11. A co-directional flipping mechanism 13 is provided at the discharging end of the first horizontal conveyor 11. The co-directional flipping mechanism 13 can clamp and convey the packaging bag forward, while rotating itself around the axis of the conveying direction of the packaging bag to flip the packaging bag in the same direction. A second horizontal conveyor 12 is provided at the end of the co-directional flipping mechanism 13 away from the first horizontal conveyor 11. The second horizontal conveyor 12 is used to receive the packaging bag flipped by the co-directional flipping mechanism 13. A secondary flipping mechanism 15 is provided at the discharging end of the second horizontal conveyor 12. The secondary flipping mechanism 15 is used to swap the front and rear ends of the packaging bag and flip it to the front and back.

[0042] In this embodiment, the packaging bag is a thin sheet-like packaging bag. The packaging bag first enters the first horizontal conveyor 11, where the image recognition mechanism 14 above it detects and recognizes the current posture of the packaging bag. Then, the packaging bag enters the same-direction flipping mechanism 13. While clamping and conveying the packaging bag forward, the mechanism rotates around the axis of the packaging bag's conveying direction, flipping the packaging bag to the desired face-up state. The packaging bag that has completed the same-direction flipping is received by the second horizontal conveyor 12 and sent to the secondary flipping mechanism 15. The secondary flipping mechanism 15 performs front and rear end swapping and front and back flipping of the packaging bag according to the recognition information, and finally outputs packaging bags with the same face up and facing the same direction.

[0043] like Figure 1 As shown, the image recognition mechanism 14 can transmit the detected attitude signal to the control center 141. The image recognition mechanism 14 is also equipped with a supplementary lighting component 142 to improve the brightness of the detection area. The control center 141 is also connected to a display screen 143 that displays the attitude of the bag. The image recognition mechanism 14 may include one or more industrial cameras.

[0044] like Figure 1 and 2 As shown, both the first horizontal conveyor 11 and the second horizontal conveyor 12 include a conveyor frame 16. The conveyor frame 16 is provided with a belt support plate 161. The two ends of the belt support plate 161 are respectively provided with a drive roller 162 and a driven roller 163. A horizontal conveying transmission belt 164 is provided between the drive roller 162, the belt support plate 161 and the driven roller 163. A sheet-shaped belt support strip 165 is provided between the horizontal conveying transmission belt 164 and the belt support plate 161. The drive roller 162 is connected to the drive roller rotation drive assembly 17. The belt support plate 161 is also provided with guide strips 166 located on both sides of the horizontal conveying transmission belt 164. A guide bevel 167 is provided on the inner side of the inlet of the guide strip 166.

[0045] In this embodiment, the active roller rotation drive assembly 17 includes a rotation drive assembly mounting plate 171 disposed on one side of the conveyor frame 16. A rotation drive motor 172 is disposed on the rotation drive assembly mounting plate 171. The outer peripheral surfaces of the output end of the rotation drive motor 172 and the wheel at one end of the active roller 162 are respectively provided with tooth grooves. The rotation drive belt 173 achieves transmission by meshing with the tooth grooves on its inner peripheral surface.

[0046] In this embodiment, the rotary drive assembly mounting plate 171 is connected to one side of the conveyor frame 16 through an adjustable structure. The side of the conveyor frame 16 is provided with a conveyor frame groove arranged along the conveying direction. The adjustable structure includes two vertical adjustment holes opened on the rotary drive assembly mounting plate 171. Bolts connected to the conveyor frame groove are provided in the two vertical adjustment holes, thereby realizing the adjustment and connection fixation of the relative position between the active roller rotary drive assembly 17 and the conveyor frame 16.

[0047] More specifically, the same-direction flipping mechanism 13 includes a base 131, a rotating ring 2 on the base 131, two conveyor belts 3 arranged radially symmetrically along their rotation center axis on the rotating ring 2, a bag feeding channel 4 formed between the two conveyor belts 3, an axial limiting circumferential sliding structure 5 between the base 131 and the rotating ring 2, and the rotating ring 2 is connected to a rotary drive mechanism 6 for driving the rotating ring 2 to rotate circumferentially.

[0048] In this embodiment, two conveyor belts 3 are radially symmetrically arranged along the rotation center axis of the rotary ring 2, forming a bag feeding channel 4 between them. The packaging bag enters the bag feeding channel 4 and is driven to be conveyed by the conveyor belts 3. When the packaging bag needs to be turned over, the rotary drive mechanism 6 drives the rotary ring 2 to rotate circumferentially relative to the base 131. The rotary ring 2 drives the two conveyor belts 3 and the clamped packaging bag to rotate synchronously, thereby realizing the turning over of the packaging bag under continuous conveying.

[0049] like Figure 6 As shown, the axial limiting circumferential sliding structure 5 includes a conveying channel 51 provided on the base 131. A spiral groove 52 is provided on the inner wall of the conveying channel 51. The outer ring of the bearing 53 is provided in the spiral groove 52, and the inner ring of the bearing 53 is fixed on the rotating ring 2.

[0050] More specifically, the rotating ring 2 includes a first inner ring 21 and a second inner ring 22. The first inner ring 21 and the second inner ring 22 are detachably connected. The outer end of the first inner ring 21 is integrated with the first end cover 211, and the outer end of the second inner ring 22 is integrated with the second end cover 221. An inner ring mounting groove 23 is formed between the first end cover 211, the first inner ring 21 and the second end cover 221. The inner ring of the bearing 53 is embedded in the inner ring mounting groove 23.

[0051] like Figure 3As shown, the rotary drive mechanism 6 includes a synchronous wheel 61 that is connected to and rotates synchronously with one end of the rotary ring 2. A rotary drive assembly 62 is connected to the synchronous wheel 61. The rotary drive assembly 62 includes a fixedly mounted rotary drive module 63, which is connected to the synchronous wheel 61 via a transmission belt 64.

[0052] In this embodiment, the rotary drive module 63 includes a rotary module motor 631. The output end of the rotary module motor 631 is connected to a reducer 632. The inner circumferential surface of the transmission belt 64 is provided with toothed grooves evenly distributed in the circumferential direction. The outer circumferential surface of the synchronous pulley 61 and the outer circumferential surface of the output wheel of the reducer 632 are respectively provided with matching toothed grooves. The transmission belt 64 engages with the toothed grooves on the inner circumferential surface of the synchronous pulley 61 and the output wheel of the reducer 632 through the toothed grooves on its inner circumferential surface, so as to realize that the synchronous pulley 61 and the output wheel of the reducer 632 maintain a certain transmission ratio and rotate synchronously.

[0053] like Figure 3 and 4 As shown, one end of the rotary ring 2 is also provided with an outer arc-shaped support 25 of the drag chain connected to the base 131. An inner arc-shaped support 26 of the drag chain is provided inside the outer arc-shaped support 25. The inner arc-shaped support 26 of the drag chain is fixed on the rotary ring 2. A drag chain unit 27 is provided between the outer arc-shaped support 25 of the drag chain and the inner arc-shaped support 26 of the drag chain. The outer arc-shaped support 25 of the drag chain is connected to the base 131 through several extended support columns 255 distributed along the circumference. A synchronous wheel 61 of the rotary drive mechanism 6 is provided between the outer arc-shaped support 25 of the drag chain and the base 131.

[0054] More specifically, the cable chain outer arc bracket 25 includes a first arc back plate 251 and a first arc outer plate 252. The first arc back plate 251 is connected to the base 131. One end of the cable chain unit 27 is disposed on the first arc outer plate 252, and a first arc short inner plate 253 connected to it is fixed on the inner side of the first arc back plate 251 at this end. The inner end of the first arc short inner plate 253 is provided with a support body 254 for approaching the cable chain unit 27.

[0055] The inner arc-shaped bracket 26 of the cable chain includes a second arc-shaped back plate 261 and a second arc-shaped inner circumference plate 262. The second arc-shaped back plate 261 is connected to the rotary ring 2. The other end of the cable chain unit 27 is fixed on the second arc-shaped inner circumference plate 262. A second arc-shaped protective plate 263 is provided between the second arc-shaped inner circumference plate 262 and the first arc-shaped short inner circumference plate 253. The second arc-shaped protective plate 263 is located outside the opening of the second arc-shaped back plate 261. The two ends of the second arc-shaped protective plate 263 are respectively connected to the two ends of the second arc-shaped back plate 261 through arc-shaped connecting plates 264.

[0056] A motor harness 271 is provided between the outer arc bracket 25 of the cable chain and the cable chain unit 27. The inner end of the motor harness 271 is connected to the conveyor belt motor 371 of the conveyor belt 3. Several harness binding buckles 321 are provided on the roller seat 32 of the conveyor belt 3 along the conveying direction of the conveyor belt 3.

[0057] In this embodiment, the cable chain unit 27 is composed of multiple chain links connected in series with hinges at their ends, and adjacent chain links have a preset degree of rotational freedom. Each chain link has a cable receiving cavity that runs through the series direction. The motor harness 271 passes through the cavity and moves synchronously with the bending movement of the cable chain unit 27, thereby achieving continuous support, guidance and protection for the harness.

[0058] like Figure 5 As shown, the conveyor belt 3 is connected to the rotary ring 2 via height adjustment seats 31 located on both sides. The height adjustment seat 31 is provided with two strip holes 311, and the rotary ring 2 between the two conveyor belts 3 is also provided with spacing adjustment marks 312 located on both sides.

[0059] like Figures 5 to 7 As shown, the conveyor belt 3 includes roller seats 32 located on both sides. The roller seats 32 are integrated with the height adjustment seat 31. Between the roller seats 32 on both sides, there is a drive roller 33 near the discharge end of the bag feeding channel 4, a support roller 34 near the inlet end of the bag feeding channel 4 and located on the same plane as the drive roller 33, and an inclined roller 35 that is farther away from the conveying surface of the conveyor belt 3 and closer to the end of the roller seat 32 relative to the support roller 34. The drive roller 33, the support roller 34 and the inclined roller 35 are covered with an annular belt 36. The drive roller 33, the support roller 34 and the inclined roller 35 are rotatably connected to the roller seats 32 on both sides. A roller adjustment assembly 38 is provided between the inclined roller 35 and the end of the roller seat 32.

[0060] A motor base 37 is provided on the roller base 32, and a conveyor belt motor 371 is provided on the motor base 37. A drive gear 372 is provided on the output end of the conveyor belt motor 371. The drive gear 372 is connected to the transmission gear 331 on the shaft of the drive roller 33 through a synchronous belt 373. A synchronous belt cover 374 is also provided on the outside of the drive gear 372, the synchronous belt 373 and the transmission gear 331.

[0061] In this embodiment, one end of the conveyor belt motor 371 is connected to a motor harness 271. The motor harness 271 passes through several harness binding buckles 321 fixed on the end face of the roller seat 32 away from the bag feeding channel 4. It extends into the inside of the drag chain unit 27 from the end fixed to the second arc-shaped inner circumference plate 262 and extends out from the end fixed to the first arc-shaped outer circumference plate 252.

[0062] In this embodiment, the roller adjustment assembly 38 includes an elongated adjustment hole opened on the roller seat 32 and extending along the conveying direction. The two ends of the rotating shaft of the tilting roller 35 are respectively inserted into the elongated adjustment hole of the corresponding side roller seat 32, and can slide back and forth in the adjustment hole along the conveying direction. By changing the relative position of the rotating shaft in the adjustment hole, the tension of the annular belt 36 and the guide tilt angle of the feed inlet can be adjusted.

[0063] like Figure 5 As shown, a limiting block 28 is protruding on the outer circumferential wall of the rotating ring 2. The limiting block 28 is fixed relative to the rotating ring 2 and rotates synchronously with it in the circumferential direction.

[0064] A limiting block 282 is fixedly provided on the circumferential side of the base 131 corresponding to the rotating ring 2. The limiting block 282 extends into the circumferential rotation stroke of the limiting block 28 and can form a rigid stop with the circumferential end face of the limiting block 28 to limit the forward and reverse rotation limit angles of the rotating ring 2. A buffer block 281 is also provided on the circumferential end face of the limiting block 28.

[0065] Two proximity sensors 283 are also fixed on the base 131. The proximity sensors 283 are set at the two rotation limit positions of the limit block 28. The detection end of the proximity sensor 283 faces the limit block 28 and is used to trigger a signal when the limit block 28 rotates to the detection range.

[0066] In this embodiment, the proximity sensor 283 includes two sensing probes. The sensing probes may include inductive sensing probes to adapt to the detection of metal components, or capacitive sensing probes to be compatible with the detection of non-metallic components.

[0067] like Figures 8 to 10 As shown, the secondary flipping mechanism 15 includes a bracket 151 on both sides, and a secondary flipping rotating shaft 7 is provided on each of the two brackets 151. A second conveyor belt 8 is provided on the two secondary flipping rotating shafts 7 and arranged radially symmetrically along their flipping center axis. A second bag feeding channel 81 is formed between the two second conveyor belts 8. The secondary flipping rotating shaft 7 is fixedly connected to the second conveyor belt 8.

[0068] A flipping drive assembly 72 is connected to the secondary flipping shaft 7 on one side. The flipping drive assembly 72 includes a fixedly installed flipping drive module 73. The flipping drive module 73 is connected to the flipping wheel 71 through the flipping transmission belt 74. The flipping wheel 71 is fixedly connected to the secondary flipping shaft 7.

[0069] A conveying drive assembly 9 is connected to the secondary flipping shaft 7 on one side. The conveying drive assembly 9 includes a fixedly installed conveying drive module 91. The conveying drive module 91 is connected to a power transmission mechanism 93 located on one side of the secondary flipping shaft 7 via a conveying transmission belt 92. The power transmission mechanism 93 is connected to the second drive rollers 82 of the two second conveyor belts 8 respectively to drive the two second conveyor belts 8 to rotate in opposite directions, thereby realizing the conveying of packaging bags in the second bag feeding channel 81.

[0070] In this embodiment, the flipping drive module 73 includes a flipping motor 731, the output end of which is connected to a flipping reducer 732. The inner circumferential surface of the flipping transmission belt 74 is provided with toothed grooves evenly distributed along the circumference. The outer circumferential surface of the flipping wheel 71 and the outer circumferential surface of the output wheel of the flipping reducer 732 are respectively provided with matching toothed grooves. The flipping transmission belt 74 engages with the toothed grooves on its inner circumferential surface with the toothed grooves on the flipping wheel 71 and the output wheel of the flipping reducer 732 to achieve driving flipping.

[0071] In this embodiment, the second conveyor belt 8 includes second roller seats 83 located on both sides. A second drive roller 82 and a second driven roller 84 are respectively provided between the two second roller seats 83 near both ends. The wheel on one side of the second drive roller 82 is connected to the power transmission mechanism 93. A second annular belt 85 is covered on the second drive roller 82 and the second driven roller 84.

[0072] The conveying drive module 91 includes a conveying motor 911. The inner circumferential surface of the conveying belt 92 is provided with toothed grooves evenly distributed along the circumference. The power transmission mechanism 93 includes a conveying wheel 931 and a driven conveying wheel 932 mounted on the secondary turning shaft 7. The conveying wheel 931 and the driven conveying wheel 932 are fixedly connected and can rotate relative to the secondary turning shaft 7. The outer circumferential surface of the conveying wheel 931 and the outer circumferential surface of the output wheel of the conveying motor 911 are provided with toothed grooves that match the conveying belt 92. The conveying belt 92 engages with the toothed grooves on its inner circumferential surface with the toothed grooves on the conveying wheel 931 and the output wheel of the conveying motor 911 to drive the conveying wheel 931 to rotate, thereby driving the driven wheel 932.

[0073] The power transmission mechanism 93 also includes a tensioning wheel 933 mounted on the second roller seat 83, and a roller drive belt 934 mounted on the driven wheel ring 932. The roller drive belt 934 crosses the gap between the tensioning wheel 933 and one end of the two second drive rollers 82, thereby driving the two second drive rollers to achieve opposite directions and synchronized linear speed motion output.

[0074] Example 2

[0075] The content of this embodiment is basically the same as that of embodiment one, except that the rotating ring 2 includes an inner ring 24, and both ends of the inner ring 24 are provided with annular end caps 241. The annular end caps 241 are detachably connected to the inner ring 24, and an inner ring mounting groove 23 for embedding the inner ring of the bearing 53 is formed between the two annular end caps 241 and the inner ring 24.

[0076] Example 3

[0077] The content of this embodiment is basically the same as that of Embodiment 1. The difference is that the rotary drive assembly 62 includes a fixedly installed rotary driver 621, which is connected to the synchronous wheel 61 through a transmission gear unit 622.

[0078] The working principle of the above embodiment is as follows: the image recognition mechanism 14 above the first horizontal conveyor 11 performs posture detection and recognition on the passing packaging bag, providing a basis for subsequent flipping and turning actions.

[0079] Once the packaging bag has been identified, it enters the same-direction flipping mechanism 13. When this mechanism is in operation, the packaging bag is fed into the bag feeding channel 4, and the drive roller 33 is driven to rotate by the conveyor belt motor 371, which in turn drives the annular belt 36 to transport the packaging bag forward. When flipping is required, the rotary drive module 63 in the rotary drive mechanism 6 drives the synchronous pulley 61 to rotate via the transmission belt 64. The synchronous pulley 61 drives the rotary ring 2 and its two conveyor belts 3 to rotate as a whole around the axis of the packaging bag's conveying direction, thereby flipping the packaging bag to the desired face-up state while continuously conveying it.

[0080] The packaging bags that have completed their unidirectional flipping are received by the second horizontal conveyor 12 and continue to be conveyed forward, eventually entering the secondary flipping mechanism 15. In the secondary flipping mechanism 15, the packaging bags are clamped within the second bag feeding channel 81 formed by two second conveyor belts 8. The conveying drive module 91 transmits power to the power transmission mechanism 93 on one side of the secondary flipping shaft 7 via the conveyor transmission belt 92. The power transmission mechanism 93 then drives the two second conveyor belts 8 to rotate in opposite directions, achieving continuous conveying of the packaging bags. At the same time, when it is necessary to change the front and rear ends of the packaging bags, the flipping drive module 73 drives the flipping wheel 71 to rotate via the flipping transmission belt 74. The flipping wheel 71 then drives the secondary flipping shaft 7 and the entire second bag feeding channel 81, which are fixed to it, to rotate around the axis, thereby completing the posture adjustment during the stable clamping and conveying of the packaging bags. The final output is neatly arranged packaging bags facing the same direction.

[0081] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A composite turning and flipping machine, comprising a frame (1), wherein a first horizontal conveyor (11) is provided on the frame (1), and an image recognition mechanism (14) is provided above the feed end of the first horizontal conveyor (11), characterized in that, The first horizontal conveyor (11) is provided with a unidirectional flipping mechanism (13) at its discharge end. The unidirectional flipping mechanism (13) can clamp and convey the packaging bag forward, while rotating itself around the axis of the conveying direction of the packaging bag to flip the packaging bag in the same direction. The unidirectional flipping mechanism (13) is provided with a second horizontal conveyor (12) at the end away from the first horizontal conveyor (11). The second horizontal conveyor (12) is used to receive the packaging bag after it has been flipped by the unidirectional flipping mechanism (13). The second horizontal conveyor (12) is provided with a secondary flipping mechanism (15) at its discharge end. The secondary flipping mechanism (15) is used to swap the front and rear ends of the packaging bag and flip it in both directions.

2. The composite turning and steering machine according to claim 1, characterized in that, The first horizontal conveyor (11) and the second horizontal conveyor (12) both include a conveyor frame (16). The conveyor frame (16) is provided with a belt support plate (161). The belt support plate (161) is provided with a drive roller (162) and a driven roller (163) at both ends. A horizontal conveying belt (164) is provided between the drive roller (162), the belt support plate (161) and the driven roller (163). A sheet-shaped belt support strip (165) is provided between the horizontal conveying belt (164) and the belt support plate (161). The drive roller (162) is connected to the drive roller rotation drive assembly (17). The belt support plate (161) is also provided with guide strips (166) located on both sides of the horizontal conveying belt (164). The guide strip (166) has a guide bevel (167) inside the inlet.

3. The composite turning and steering machine according to claim 1, characterized in that, The unidirectional flipping mechanism (13) includes a base (131), on which a rotating ring (2) is provided. The rotating ring (2) is provided with two conveyor belts (3) arranged radially symmetrically along its rotation center axis. A bag feeding channel (4) is formed between the two conveyor belts (3). An axial limiting circumferential sliding structure (5) is provided between the base (131) and the rotating ring (2). The rotating ring (2) is connected to a rotary drive mechanism (6) for driving the rotating ring (2) to rotate circumferentially.

4. The composite turning and steering machine according to claim 3, characterized in that, The axial limiting circumferential sliding structure (5) includes a conveying channel (51) provided on the base (131), a spiral groove (52) is provided on the inner wall of the conveying channel (51), the outer ring of the bearing (53) is provided in the spiral groove (52), and the inner ring of the bearing (53) is fixed on the rotating ring (2).

5. The composite turning and steering machine according to claim 4, characterized in that, The rotating ring (2) includes a first inner ring (21) and a second inner ring (22). The first inner ring (21) and the second inner ring (22) are detachably connected. The outer end of the first inner ring (21) is connected to the first end cap (211), and the outer end of the second inner ring (22) is connected to the second end cap (221). An inner ring mounting groove (23) is formed between the first end cap (211), the first inner ring (21), and the second end cap (221). The inner ring of the bearing (53) is embedded in the inner ring mounting groove (23).

6. The composite turning and steering machine according to claim 3, characterized in that, The rotary drive mechanism (6) includes a synchronous wheel (61) connected to and rotating synchronously at one end of the rotary ring (2). A rotary drive assembly (62) is connected to the synchronous wheel (61). The rotary drive assembly (62) includes a fixedly installed rotary drive module (63). The rotary drive module (63) is connected to the synchronous wheel (61) via a transmission belt (64).

7. The composite turning and steering machine according to claim 3, characterized in that, One end of the rotary ring (2) is also provided with a drag chain outer arc bracket (25) connected to the base (131). The drag chain inner arc bracket (26) is provided inside the drag chain outer arc bracket (25). The drag chain inner arc bracket (26) is fixed on the rotary ring (2). A drag chain unit (27) is provided between the drag chain outer arc bracket (25) and the drag chain inner arc bracket (26). The drag chain outer arc bracket (25) is connected to the base (131) through several extended support columns (255) distributed along the circumference. The synchronous wheel ring (61) of the rotary drive mechanism (6) is provided between the drag chain outer arc bracket (25) and the base (131).

8. The composite turning and steering machine according to claim 7, characterized in that, The cable chain outer arc bracket (25) includes a first arc back plate (251) and a first arc outer plate (252). The first arc back plate (251) is connected to the base (131). One end of the cable chain unit (27) is set on the first arc outer plate (252), and a first arc short inner plate (253) connected to it is fixed on the inner side of the first arc back plate (251) at this end. The inner end of the first arc short inner plate (253) is provided with a support (254) for approaching the cable chain unit (27). The inner arc bracket (26) of the cable chain includes a second arc back plate (261) and a second arc inner circumference plate (262). The second arc back plate (261) is connected to the rotary ring (2). The other end of the cable chain unit (27) is fixed on the second arc inner circumference plate (262). A second arc protective plate (263) is provided between the second arc inner circumference plate (262) and the first arc short inner circumference plate (253). The second arc protective plate (263) is located outside the opening of the second arc back plate (261). The two ends of the second arc protective plate (263) are connected to the two ends of the second arc back plate (261) through arc connecting plates (264). A motor harness (271) is provided between the outer arc bracket (25) of the drag chain and the drag chain unit (27). The inner end of the motor harness (271) is connected to the conveyor belt motor (371) of the conveyor belt (3). Several harness binding buckles (321) are provided on the roller seat (32) of the conveyor belt (3) along the conveying direction of the conveyor belt (3).

9. The composite turning and steering machine according to claim 3, characterized in that, The conveyor belt (3) is connected to the rotary ring (2) via height adjustment seats (31) located on both sides respectively. The height adjustment seat (31) is provided with at least one strip hole (311), and the rotary ring (2) between the two conveyor belts (3) is also provided with spacing adjustment marks (312) located on both sides. The conveyor belt (3) includes roller seats (32) located on both sides. The roller seats (32) are integrated with the height adjustment seat (31). The roller seats (32) on both sides are respectively provided with a drive roller (33) close to the discharge end of the bag feeding channel (4), a support roller (34) close to the inlet end of the bag feeding channel (4) and located on the same plane as the drive roller (33), and an inclined roller (35) that is farther away from the conveying surface of the conveyor belt (3) and closer to the end of the roller seat (32) relative to the support roller (34). The drive roller (33), support roller (34) and inclined roller (35) are covered with an annular belt (36). The drive roller (33), support roller (34) and inclined roller (35) are rotatably connected to the roller seats (32) on both sides. A roller adjustment assembly (38) is provided between the inclined roller (35) and the end of the roller seat (32). The roller seat (32) is provided with a motor seat (37), the motor seat (37) is provided with a conveyor belt motor (371), the output end of the conveyor belt motor (371) is provided with a drive gear (372), the drive gear (372) is connected to the transmission gear (331) on the shaft of the drive roller (33) through a synchronous belt (373), and a synchronous belt cover (374) is also provided on the outside of the drive gear (372), the synchronous belt (373) and the transmission gear (331).

10. The composite turning and steering machine according to claim 1, characterized in that, The secondary flipping mechanism (15) includes a bracket (151) on both sides, and a secondary flipping shaft (7) is provided on each of the brackets (151). A second conveyor belt (8) is provided on the two secondary flipping shafts (7) and arranged radially symmetrically along their flipping center axis. A second bag feeding channel (81) is formed between the two second conveyor belts (8). The secondary flipping shaft (7) is fixedly connected to the second conveyor belt (8). A flipping drive assembly (72) is connected to the secondary flipping shaft (7) on one side. The flipping drive assembly (72) includes a fixedly installed flipping drive module (73). The flipping drive module (73) is connected to the flipping wheel (71) through a flipping transmission belt (74). The flipping wheel (71) is fixedly connected to the secondary flipping shaft (7). A conveying drive assembly (9) is connected to the secondary flipping shaft (7) on one side. The conveying drive assembly (9) includes a fixedly installed conveying drive module (91). The conveying drive module (91) is connected to a power transmission mechanism (93) on one side of the secondary flipping shaft (7) via a conveying transmission belt (92). The power transmission mechanism (93) is connected to the second drive rollers (82) of the two second conveyor belts (8) respectively to drive the two second conveyor belts (8) to rotate in opposite directions, thereby realizing the conveying of packaging bags in the second bag feeding channel (81).

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