Synchronous lifting and transfer machine

Abstract

The application discloses a synchronous lifting and transferring machine, and relates to the technical field of transferring machines, which comprises a bottom plate, a control box fixedly connected to one side of the bottom plate, a roller assembly arranged above the bottom plate and used for conveying articles in a first direction, a belt transferring assembly arranged above the bottom plate and arranged in parallel with the roller assembly and used for conveying articles in a second direction perpendicular to the first direction, and a double-cam lifting assembly in transmission connection with the roller assembly and the belt transferring assembly. The double-cam lifting assembly is combined with a scissor-type connecting rod supporting assembly to form a composite driving scheme, and gear and synchronous belts are used to realize synchronous reverse rotation of two control rods, so that the synchronism of the roller assembly and the belt transferring assembly in the lifting process is ensured, the problems of article inclination, jamming and even falling caused by the asynchronization of traditional lifting and transferring equipment are solved, and the stability and reliability of equipment operation are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of transfer machine technology, specifically a synchronous lifting transfer machine. Background Technology

[0002] In modern automated logistics and manufacturing systems, the conveying and sorting of goods are crucial links. To enable flexible switching of materials between conveying lines in different directions, synchronous lifting transfer machines are widely used as a core piece of equipment. Their basic function is to receive the goods, lift them to a predetermined height, and then push them to the target line in the vertical direction through another set of conveying mechanisms, thereby completing a 90-degree reversal operation. These types of equipment usually integrate multiple modules such as roller conveyor, belt conveyor, lifting and power control, and are indispensable key equipment for realizing warehouse automation and production line flexibility.

[0003] Patent document CN114455246B discloses a cam-lifting transfer machine and its control method, belonging to the field of logistics transportation. The machine includes a fixed base plate, a fixed shaft, and a connecting plate. A shock-absorbing and protective assembly is fixedly mounted on the bottom surface of the fixed base plate. The fixed shaft is rotatably connected to the fixed base plate, and an adjustable lifting assembly is mounted on the fixed shaft. A protective side plate is welded to the connecting plate, and a second servo motor is welded to the protective side plate. The output end of the second servo motor is connected to a connecting shaft, which is rotatably connected to the protective side plate. This invention solves the problem that existing cam-lifting transfer machines cannot easily and stably adjust the lifting height during use, thus failing to guarantee [the necessary functions / operations]. The stability of the cam-lift transfer machine in cooperating with conveyor lines at different heights cannot guarantee the stability and safety of subsequent cargo transfer operations, resulting in poor adaptability and safety. Furthermore, the single-cam structure used in this patented technology has inherent and insurmountable defects in achieving high-precision synchronous lifting. The core problem lies in the fact that the single-cam structure attempts to use a single power source and a single contour curve to simultaneously drive two independent conveyor modules (such as rollers and transfer belts) for synchronous lifting. This design cannot guarantee absolute synchronization between the two modules during movement. Due to differences in power distribution and transmission chains, inconsistent lifting heights are prone to occur after prolonged operation, causing items to tilt or even jam during reversal. Secondly, the fixed geometric contour of a single cam makes it difficult to optimize the motion trajectory of the two modules separately. It cannot achieve the independent and precise control of the speed, acceleration, and dwell time of each module as with a double-cam design, leading to impacts and vibrations during the lifting process and affecting operational stability. Finally, in order to drive two loads, a single cam needs to withstand greater torque and complex stress, which not only aggravates the wear of the cam itself, but also forces the guide support structure (such as a timing belt or wire rope) to withstand greater unbalanced loads, resulting in insufficient rigidity, easy shaking, and serious impact on positioning accuracy. Therefore, a synchronous lifting and transfer method is needed to solve the existing shortcomings. Summary of the Invention

[0004] Technical problems to be solved

[0005] The existing single-cam structure has inherent defects in terms of synchronization accuracy, operational stability and structural reliability because it is difficult to independently and accurately control the synchronous lifting of two conveying modules.

[0006] Technical solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a synchronous lifting and transferring machine, comprising:

[0008] Base plate;

[0009] The control box is fixedly connected to one side of the base plate;

[0010] A roller assembly, disposed above the base plate, is used to convey items along a first direction;

[0011] A belt transfer assembly is disposed above the base plate and arranged in parallel with the roller assembly for conveying items along a second direction perpendicular to the first direction;

[0012] A dual-cam lifting assembly is connected to the roller assembly and the belt transfer assembly for driving the roller assembly and the belt transfer assembly to perform synchronous lifting movements.

[0013] A drive component, located inside the control box, is connected to the dual-cam lifting assembly and provides power for the synchronous lifting motion;

[0014] A support assembly, disposed on the base plate and connected to the roller assembly and / or the belt transfer assembly, is used to provide auxiliary support during lifting and lowering to ensure the stability of its longitudinal movement.

[0015] Furthermore, the dual-cam lifting assembly includes:

[0016] Two parallel control rods that can rotate synchronously in opposite directions are movably connected to the base plate via bearings, with one end of each control rod extending into the control box and connected to the drive assembly.

[0017] Four cams are symmetrically fixed on the two control levers in groups of two;

[0018] Two rotating wheels are fixedly installed on the roller assembly and roll in contact with the positions of the four cams in a one-to-one correspondence.

[0019] Four cams are symmetrically fixed on the two control levers in pairs.

[0020] Two rotating wheels are fixedly installed on the belt transfer assembly and roll in contact with the positions of the four cams in a one-to-one correspondence.

[0021] The control lever drives cam one and cam two to rotate. During rotation, cam one presses against wheel one, thereby lifting the roller assembly. During rotation, cam two presses against wheel two, thereby lifting the belt transfer assembly. Conversely, the roller assembly and belt transfer assembly descend under the assistance of the support assembly and their own gravity.

[0022] Furthermore, the driving component includes:

[0023] Motor 1 is fixed inside the control box;

[0024] The gear transmission mechanism includes a first gear and a second gear that mesh with each other. The first gear is fixed coaxially with one of the control levers, and the second gear is movably connected to the control box via a rotating shaft.

[0025] The synchronous belt drive mechanism includes two synchronous pulleys and a synchronous belt sleeved on them, wherein one synchronous pulley is coaxially fixed with the gear two, and the other synchronous pulley is coaxially fixed with another control rod;

[0026] The motor drives one of the control levers to rotate, and through the gear transmission mechanism and the synchronous belt transmission mechanism, the two control levers rotate synchronously in opposite directions.

[0027] Furthermore, the support component includes:

[0028] Guide grooves are formed on the base plate;

[0029] Guide rod, fixed inside guide groove;

[0030] Both sliders are slidably mounted on the guide rod and are slidably engaged with the guide groove;

[0031] Two connecting rods, one end of each connecting rod is hinged to a slider, and the other end is hinged to the bottom of the roller assembly or belt transfer assembly, forming a symmetrical scissor structure.

[0032] Two return springs are both sleeved on the guide rod, and their two ends are fixedly connected to the ends of the corresponding slider and guide groove, respectively, to provide restoring force for the slider.

[0033] Furthermore, the roller assembly includes:

[0034] Support frame;

[0035] Multiple rollers are rotatably disposed within the support frame;

[0036] The belt synchronization mechanism connects adjacent rollers to achieve synchronous rotation of all rollers;

[0037] Motor 2 is fixed to the outside of the support frame and is used to drive one of the rollers to rotate.

[0038] Four guide rods are fixedly connected to the four corners at the bottom of the support frame. The bottom end of each guide rod is movably connected to the base plate to assist the longitudinal movement of the support frame.

[0039] Furthermore, the belt synchronization mechanism includes:

[0040] An annular groove is formed at one end of each of the rollers;

[0041] Synchronous belts are alternately fitted around the annular grooves of adjacent rollers, thus connecting all rollers into a synchronously rotating whole.

[0042] Furthermore, the belt transfer assembly includes:

[0043] Mounting frame;

[0044] Multiple transfer units arranged side by side, each transfer unit includes a mounting frame and a roller assembly fitted with a transfer belt;

[0045] The drive rod, which runs through the shaft of the drive rollers of all transfer units, is used to achieve synchronous rotation of all transfer belts;

[0046] Motor 3 is fixed to the mounting frame and is used to drive the drive rod to rotate;

[0047] Four guide rods are fixedly connected to the four corners at the bottom of the mounting frame. The bottom end of each guide rod is movably connected to the base plate to assist the longitudinal movement of the mounting frame.

[0048] Furthermore, the roller assembly of each of the transfer units includes:

[0049] Multiple rollers are movably connected to the upper part of the mounting bracket via a rotating shaft;

[0050] A second roller is movably connected to the lower part of the mounting frame via a rotating shaft, serving as the active roller, and its rotating shaft is fixedly connected to the drive rod;

[0051] Two tensioning rollers are movably connected to the mounting bracket via a rotating shaft;

[0052] The transfer belt is wrapped around the outside of the plurality of rollers and rollers, and the tensioning wheel presses against the outside of the transfer belt to provide tension.

[0053] Furthermore, the first roller is fixedly installed on the support frame of the roller assembly; the second roller is fixedly installed on the mounting frame of the belt transfer assembly; the roller body of the roller assembly and the transfer belt of the belt transfer assembly are alternately distributed.

[0054] Furthermore, the surface of the transfer belt is constructed with textured grooves to increase friction.

[0055] Compared with existing technologies, this synchronous lifting and transferring machine has the following advantages:

[0056] I. This invention employs a composite drive scheme combining a double-cam lifting assembly and a scissor-type linkage support assembly, and utilizes gears and synchronous belts to achieve synchronous reverse rotation of two control rods. This ensures the synchronization of the roller assembly and the belt transfer assembly during the lifting process, solving the problems of tilting, jamming, or even falling of items caused by asynchronous lifting in traditional transfer equipment, and greatly improving the stability and reliability of the equipment operation.

[0057] Second, by setting a rotating wheel that rolls in contact with the cam in the double cam lifting assembly, the present invention transforms the direct sliding friction between the cam and the assembly in the traditional design into low-friction, low-wear rolling friction, which significantly reduces operating resistance and energy consumption, effectively reduces wear on key components, greatly extends the service life of the equipment, and significantly reduces operating noise, thereby improving the comfort of the working environment.

[0058] Third, by setting four guide rods at the bottom of the roller assembly and the belt transfer assembly, and cooperating with the guide holes on the base plate, the present invention forms a precise longitudinal guiding mechanism. Combined with the rigid constraint of the scissor linkage support assembly, it ensures that the two conveying modules always maintain a horizontal posture during the lifting process, without shaking or tilting, and achieves high-precision lifting and positioning, meeting the stringent requirements of the automation system for docking accuracy.

[0059] Fourth, by designing the rollers of the roller assembly and the transfer belt of the belt transfer assembly to be arranged in an alternating layout, the bottom of the item can always be continuously and effectively supported during the entire reversal process. This completely eliminates the risk of items being suspended, tilted, or stuck due to gaps between the conveying modules, thereby enabling the smooth handling of materials of various sizes and types, especially soft bags or small boxes with uneven bottoms, significantly enhancing the adaptability and processing efficiency of the equipment.

[0060] Fifth, this invention integrates precision components such as drive components and electrical control systems into a fully sealed control box, providing dustproof, oilproof, and collision-proof sealed protection for key components. At the same time, the modular design of the roller assembly, belt transfer unit, and independent drive system makes each part clearly structured and independent. This not only simplifies daily maintenance work but also allows for quick location and replacement of the corresponding module in case of failure, greatly shortening equipment downtime and reducing overall maintenance costs. Attached Figure Description

[0061] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0062] Figure 2 This is a schematic diagram of the structure of the components of the present invention, excluding the base plate and the control box;

[0063] Figure 3 For the present invention Figure 2Another perspective structural diagram;

[0064] Figure 4 This is a schematic diagram of the main component structure of the present invention;

[0065] Figure 5 For the present invention Figure 4 Another perspective structural diagram;

[0066] Figure 6 This is a schematic diagram of the belt transfer assembly structure of the present invention;

[0067] Figure 7 This is a schematic diagram of the dual-cam lifting assembly and drive assembly of the present invention.

[0068] Figure 8 This is a schematic diagram of the supporting component structure of the present invention;

[0069] Figure 9 This is a schematic diagram of the base plate, control box, and support frame structure of the present invention.

[0070] In the diagram: 1. Base plate; 2. Control box; 3. Roller assembly; 301. Support frame; 302. Roller body; 303. Motor II; 304. Guide rod I; 305. Synchronous belt; 4. Belt transfer assembly; 401. Mounting frame; 402. Drive rod; 403. Motor III; 404. Guide rod II; 405. Roller I; 406. Roller II; 407. Tensioner; 408. Transfer belt; 5. Double cam Lifting assembly; 501, control lever; 502, cam one; 503, rotating wheel one; 504, cam two; 505, rotating wheel two; 6, drive assembly; 601, motor one; 602, gear one; 603, gear two; 604, synchronous pulley; 605, synchronous belt; 7, support assembly; 701, guide rod; 702, slider; 703, connecting rod; 704, return spring; 8, guide groove; 9, annular groove. Detailed Implementation

[0071] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0072] like Figure 1-9As shown, the present invention provides a technical solution: a synchronous lifting and transfer machine. The present invention provides a high-precision and high-stability synchronous lifting and transfer machine, which aims to solve the problems of asynchronous operation, instability, easy wear and tear, and frequent maintenance of existing transfer equipment during the lifting process. It is especially suitable for automated logistics warehousing, e-commerce sorting and production line docking systems with extremely high requirements for stable operation and positioning accuracy.

[0073] like Figure 1 and Figure 2 As shown, the synchronous lifting transfer machine uses a thick, milled base plate 1 as the installation reference to ensure the installation accuracy of all components. The base plate 1 is usually welded from Q235 steel and undergoes stress-relieving annealing treatment to prevent deformation after long-term use. On one side of the base plate 1, a fully sealed control box 2 is fixedly connected by bolts. The control box 2 is made of sheet metal and not only integrates electrical components such as the equipment's PLC controller, frequency converter, and wiring terminals, but more importantly, it provides a dustproof, oil-proof, and collision-proof sealed working environment for the precision drive components 6.

[0074] The main body of the equipment consists of two core conveying modules: roller assembly 3 and belt transfer assembly 4. The two are arranged side by side above the base plate 1 to form a complete conveying plane. Roller assembly 3 is responsible for conveying items along the main conveying line direction (defined as the first direction, such as the X-axis), while belt transfer assembly 4 is responsible for conveying items along the reversing direction perpendicular to the main conveying line (defined as the second direction, such as the Y-axis). In a preferred embodiment, the rollers 302 of roller assembly 3 and the transfer belts 408 of belt transfer assembly 4 are alternately distributed. This staggered design ensures that whether it is a small hopper or a soft package, it is always effectively supported from below during the reversing process, avoiding tilting, jamming or falling of items in the gap between the two conveying modules, which greatly improves the stability and reliability of operation.

[0075] To achieve millimeter-level synchronous lifting of the two conveying modules, this invention adopts a composite drive scheme combining a double-cam lifting assembly 5 and a support assembly 7. The double-cam lifting assembly 5 is the main power source for the lifting action. It includes two control rods 501 that are mounted parallel to each other on the base plate 1 via high-precision deep groove ball bearings. The control rods 501 are made of No. 45 steel and have undergone heat treatment to ensure sufficient bending and torsional strength. One end of the control rod 501 extends into the control box 2 through a coupling and is connected to the drive assembly 6. On each control rod 501, two cams 1 502 and two cams 2 504 are symmetrically fixed by key connection. The cams are made of high-quality carbon steel or alloy steel, and their contour curves have been precisely calculated and machined to ensure uniform speed, smoothness and low impact during the lifting process.

[0076] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, on the side of the support frame 301 of the roller assembly 3, two rollers 503 are mounted on the bearings. They correspond one-to-one with the positions of the four cams 502 and form a rolling contact. Similarly, on the side of the mounting frame 401 of the belt transfer assembly 4, two rollers 505 are also mounted, corresponding one-to-one with the four cams 504 and forming a rolling contact. The rollers are preferably made of wear-resistant bearing steel, and the outer ring is hardened to withstand frequent compression and rolling. This "cam-roller" rolling contact design transforms traditional sliding friction into rolling friction, which significantly reduces running resistance and wear, greatly extends service life, and reduces operating noise.

[0077] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the drive assembly 6 provides precise and reliable power to the dual-cam lifting assembly 5. It includes a servo motor 601 fixed inside the control box 2. The output shaft of the motor 601 is connected to one of the control levers 501 via a gear transmission mechanism. This mechanism includes a meshing gear 602 and a gear 603. The gear 602 is coaxially fixed to the control lever 501 via a key connection. To achieve synchronous reverse rotation of the two control levers 501, a synchronous belt 605 transmission mechanism is also provided. This mechanism includes two synchronous pulleys. The high-strength synchronous belt 605 fitted on 604 has one synchronous pulley 604 fixed coaxially with gear 603 and the other synchronous pulley 604 fixed coaxially with another control lever 501. After the motor 601 starts, the initial deceleration of the gear pair and the zero-slip transmission of the synchronous belt 605 pair ensure that the two control levers 501 rotate synchronously in opposite directions with the same angular velocity, thereby ensuring the synchronous action of the four cams 502 and the four cams 504, and realizing the synchronous lifting of the roller assembly 3 and the belt transfer assembly 4.

[0078] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown in this application, the belt transfer assembly 4 is assisted in movement by one support assembly 7, and the roller assembly 3 is assisted in movement by two support assemblies 7. The support assembly 7 is key to ensuring the stability of the lifting process. It includes three parallel guide grooves 8 opened on the base plate 1 and guide rods 701 fixed between the guide grooves 8. The guide rods 701 are made of chrome-plated optical shafts to reduce friction. Two sliders 702 can be smoothly slidably fitted onto the guide rods 701, while their bottoms form a sliding fit with the guide grooves 8 to prevent the sliders 702 from rotating. Two connecting rods 703 are made of high-strength connecting rods 703 and are arranged in a cross pattern to form a symmetrical scissor structure. Each connecting rod Both ends of 703 are hinged to the bottom of the slider 702 and the conveying assembly via self-lubricating bearings. In addition, two return springs 704 are sleeved on the guide rod 701, with their ends fixed to the ends of the slider 702 and the guide groove 8, respectively. When the lifting assembly rises, the sliders 702 move towards each other and compress the springs, storing energy. When the lifting assembly descends, the springs release energy, assisting in its smooth return and playing an important buffering role, avoiding the rigid impact when the assembly falls to the bottom plate 1. This rigidly connected scissor-type linkage 703 support has higher rigidity, longer service life and lower maintenance costs compared to the traditional synchronous belt 605 or wire rope traction.

[0079] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 9 As shown, the roller assembly 3 includes a support frame 301 welded from stainless steel or aluminum alloy profiles. Multiple rubber-coated rollers 302 are installed inside the support frame 301 to increase friction. The belt synchronization mechanism is a major feature of this assembly. It has an annular groove 9 at one end of each roller 302. A synchronization belt 305 is alternately fitted around the annular groove 9 of adjacent rollers 302 to form a closed, slip-free transmission chain. Power is provided by a motor 303 (usually a motor with a reducer) fixed to the outside of the support frame 301. It drives one of the rollers 302 to rotate, and then transmits the power evenly to all rollers 302 through the synchronization belt 305, realizing the synchronous and same speed rotation of all rollers 302. In order to ensure the straightness and stability of the lifting process, four guide rods 304 are fixedly connected at the four corners of the bottom of the support frame 301. These guide rods 304 are movably connected to the bottom plate 1 to form a precise longitudinal guiding mechanism.

[0080] The belt transfer assembly 4 has a more refined structure. It includes a mounting frame 401 with multiple parallel transfer units. Each transfer unit contains a mounting bracket 409 and a set of rollers. A transfer belt 408 is fitted onto the rollers. This transfer belt 408 is usually a modular belt with blade-like protrusions, which can effectively "grip" the bottom of the hopper. A drive rod 402 (usually a splined shaft or hexagonal shaft) runs through the shaft of the drive rollers of all transfer units and is driven by a motor 403 (preferably a servo motor for rapid start-stop and precise positioning) fixed on the mounting frame 401, thereby ensuring the synchronous rotation of all transfer belts 408. Similarly, four guide rods 404 are fixedly connected at the four corners of the bottom of the mounting frame 401, which move in conjunction with the base plate 1 to ensure smooth lifting.

[0081] In this application, the roller assembly of each transfer unit has a compact structure, including five rollers 405, one roller 406 (drive roller) and two tension rollers 407. The surface of the transfer belt 408 is constructed with textured grooves to increase friction, which further enhances the gripping force and prevents slippage during high-speed transfer.

[0082] The control system of this invention (integrated within the control box 2) detects the position of the item using a sensor (such as a photoelectric sensor) and executes the following process according to a preset program:

[0083] Connection: The item is fed in from the upstream conveyor line, and the motor of roller assembly 3 starts to transport the item to the center of the transfer area.

[0084] Lifting: The motor of the drive assembly 6 is started, and the roller assembly 3 and the belt transfer assembly 4 are simultaneously lifted to the predetermined height through the double cam lifting assembly 5, so that the items are removed from the original conveyor line.

[0085] Reversal: The motor of roller assembly 3 stops, the motor of belt transfer assembly 4 starts, and belt transfer assembly 4 rotates at high speed, moving the item out along the second direction (Y axis).

[0086] Reset: After the item is completely removed, the motor of the belt transfer component 4 stops, the motor of the drive component 6 reverses, and the double cam lifting component 5 and the support component 7 work together to make the two conveying components descend smoothly to the initial position, waiting for the next instruction.

[0087] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0088] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A synchronous vertical transfer machine characterized by comprising: The machine includes a base plate (1) and a control box (2) fixedly connected to one side of the base plate. Above the base plate (1) are a roller assembly (3) for conveying items in a first direction and a belt transfer assembly (4) for conveying items in a second direction perpendicular to the first direction. The transfer machine also includes a double cam lifting assembly (5), which is connected to the roller assembly (3) and the belt transfer assembly (4) for driving them to perform synchronous lifting motion. The control box (2) contains a drive assembly (6), which is connected to the double cam lifting assembly (5) and provides power for the synchronous lifting motion. The base plate (1) is provided with a support assembly (7) connected to the roller assembly (3) and / or the belt transfer assembly (4) for providing auxiliary support during lifting and ensuring the stability of longitudinal movement. The double cam lifting assembly (5) includes two parallel... A control lever (501) is provided and can rotate synchronously in opposite directions. The control lever (501) is provided with a cam (502) for lifting the roller assembly (3) and a cam (504) for lifting the belt transfer assembly (4). The roller assembly (3) is provided with a roller (503) that rolls against the cam (502). The belt transfer assembly (4) is provided with a roller (505) that rolls against the cam (504). The support assembly (7) includes a guide groove (8) on the base plate (1), a guide rod (701) fixed in the guide groove, a slider (702) slidably disposed on the guide rod, a connecting rod (703) hinged to the slider, and a return spring (704) that provides restoring force to the slider. The connecting rod (703) is hinged to the bottom of the roller assembly (3) or the belt transfer assembly (4) to form a scissor structure.

2. The synchronous lifting and transferring machine according to claim 1, characterized in that, The drive assembly (6) includes a motor (601), a gear transmission mechanism consisting of meshing gear 1 (602) and gear 2 (603), and a synchronous belt transmission mechanism consisting of a synchronous pulley (604) and a synchronous belt (605); the motor (601) drives the two control rods (501) to rotate synchronously in opposite directions through the gear transmission mechanism and the synchronous belt transmission mechanism.

3. The synchronous lifting and transferring machine according to claim 1, characterized in that, The roller assembly (3) includes a support frame (301), a plurality of rollers (302) rotatably disposed within the support frame, a second motor (303) for driving the rollers to rotate, a belt synchronization mechanism connecting adjacent rollers, and a guide rod (304) for assisting the longitudinal movement of the support frame.

4. A synchronous lifting and transferring machine according to claim 3, characterized in that, The belt synchronization mechanism includes: An annular groove (9) is formed at one end of each of the roller bodies (302); Synchronous belts (305) are alternately fitted around the annular grooves (9) of two adjacent rollers (302), thereby connecting all rollers (302) into a synchronously rotating whole.

5. A synchronous lifting and transferring machine according to claim 1, characterized in that, The belt transfer assembly (4) includes a mounting frame (401), multiple transfer units arranged side by side, a drive rod (402) that drives all transfer units to rotate synchronously, a motor (403) that drives the drive rod, and a guide rod (404) that assists the mounting frame to move longitudinally; each transfer unit includes a mounting frame (409), a roller assembly, and a transfer belt (408) sleeved on the roller assembly.

6. A synchronous lifting and transferring machine according to claim 5, characterized in that, Each of the transfer units includes a plurality of rollers 1 (405) movably connected to the upper part of the mounting frame (409) via a pivot, a roller 2 (406) movably connected to the lower part of the mounting frame (409) as an active roller with its pivot fixedly connected to the drive rod (402) via a pivot, and two tensioning rollers (407) movably connected to the mounting frame (409) via a pivot; the transfer belt (408) is wrapped around the outside of the plurality of rollers 1 (405) and the roller 2 (406), and the tensioning rollers (407) press against the outside of the transfer belt (408) to provide tension.

7. A synchronous lifting and transferring machine according to claim 1 or 5, characterized in that, The first roller (503) is fixedly installed on the support frame (301) of the roller assembly (3); the second roller (505) is fixedly installed on the mounting frame (401) of the belt transfer assembly (4); the roller body (302) of the roller assembly (3) and the transfer belt (408) of the belt transfer assembly (4) are alternately distributed.

8. A synchronous lifting and transferring machine according to claim 7, characterized in that, The surface of the transfer belt (408) is constructed with textured grooves to increase friction.

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