Multi-layer synchronous high-speed stacking equipment

Abstract

The present invention discloses a multi-layer synchronous high-speed stacking equipment, including: a feed conveyor line, a cache station, a shelf conveyor line and a stacker, wherein the cache station is set up at the conveying end of the feed conveyor line, and is used to cache multiple products conveyed by the feed conveyor line, the shelf conveyor line includes a shelf feed line and a shelf discharge line, and the shelf feed line is used to convey the shelf to the stacking station; the shelf discharge line includes a jacking conveyor line and a shelf outflow conveyor line, and the jacking conveyor line is used to jack up the shelf on the stacking station and dock with the shelf outflow conveyor line; the stacker includes a second lifting drive device and a pick-up and put-down mechanism driven by the second lifting drive device to do lifting movement, and the pick-up and put-down mechanism includes a fork mounting frame and a multi-layer bidirectional telescopic fork, and the multi-layer bidirectional telescopic fork cooperates with the second lifting drive device to synchronously transfer the multi-layer products cached on the cache station to the shelf. The present invention can realize fully automated high-speed stacking of multi-layer products and improve efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of stacking equipment, and in particular to a multi-layer synchronous high-speed stacking equipment. Background Art

[0002] In modern industrial production, stacking is an important link, and its efficiency and quality directly affect the benefits of the entire production process. For example, in the photovoltaic industry, with the continuous growth of market demand for photovoltaic panels, the requirements for production efficiency and quality are also increasing. In the production process of photovoltaic panels, stacking is an indispensable part.

[0003] With the continuous improvement of industrial automation level and the increasing scale of production, the performance requirements for stacking equipment are getting higher and higher. The traditional method of manually placing the produced photovoltaic panels on the shelves is obviously no longer able to meet the production needs. Although automatic stacking equipment has been designed on the market, there are still many limitations. When stacking photovoltaic panels, the existing stacking equipment often relies on a single-layer stacking robot arm. This method is still not efficient, the stacking speed is slow, and it is difficult to keep up with the overall rhythm of the production line, which reduces the efficiency of the entire production line and cannot meet the needs of large-scale production. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a multi-layer synchronous high-speed stacking device to overcome the defects of the existing stacking equipment, such as slow stacking speed, low efficiency and difficulty in keeping up with the overall rhythm of the production line.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a multi-layer synchronous high-speed stacking device, comprising:

[0006] Feed conveyor lines for conveying products;

[0007] The buffer station is set up at the conveying end of the feed conveyor line, and includes a first lifting drive device and two buffer racks symmetrically arranged on both sides of the feed conveyor line, each of the buffer racks is provided with multi-layer supporting racks arranged and distributed at intervals in the vertical direction, and the first lifting drive device is used to drive the two buffer racks to rise synchronously, so as to lift the products delivered to the feed conveyor line upwards through the corresponding supporting racks on both sides;

[0008] A rack conveyor line, comprising a rack infeed line and a rack outfeed line, wherein the rack infeed line is used to convey the rack to the stacking station; the rack outfeed line comprises a lifting conveyor line and a rack outflow conveyor line, wherein the conveying direction of the rack outflow conveyor line is perpendicular to the conveying direction of the rack infeed line, and the rack outflow conveyor line is arranged higher than the rack infeed line; the lifting conveyor line is located directly below the rack on the stacking station, and the lifting conveyor line is used to lift the rack on the stacking station and dock with the rack outflow conveyor line, and can convey the rack to the rack outflow conveyor line, and the rack outflow conveyor line is used to convey the rack out;

[0009] And a stacker, which is arranged between the cache station and the shelf conveyor line, and includes a second lifting drive device and a material picking and placing mechanism driven by the second lifting drive device to perform lifting movement, the material picking and placing mechanism includes a fork mounting frame and bidirectional telescopic forks installed on the fork mounting frame at intervals in the vertical direction and having the same number of layers as the supporting frame, and the multiple layers of the bidirectional telescopic forks cooperate with the second lifting drive device to synchronously transfer multiple layers of products cached in the cache station to the shelf.

[0010] As a further improvement of the present invention, the feed conveyor line includes a first frame, a plurality of synchronous belt conveyor mechanisms installed side by side on the first frame, a first transmission mechanism and a first motor. The first motor is connected to the plurality of synchronous belt conveyor mechanisms through the first transmission mechanism to drive the plurality of synchronous belt conveyor mechanisms to rotate synchronously to convey products.

[0011] As a further improvement of the present invention, the cache station also includes a gantry bracket, and the two opposite inner sides of the gantry bracket are fixed with slide rails in the vertical direction, and the two cache racks are respectively slid on the slide rails on both sides; the first lifting drive device is installed on the top of the gantry bracket and is transmission-connected to the two cache racks.

[0012] As a further improvement of the present invention, the first lifting drive device includes a servo motor fixed on the gantry bracket, a driving gear fixed on the output shaft of the servo motor, and two lifting transmission mechanisms symmetrically installed on the gantry bracket, and the two lifting transmission mechanisms each include a traction chain, a counterweight block, and a rotating shaft rotatably installed on the gantry bracket and with a sprocket, the counterweight block is slidably installed on the gantry bracket along the vertical direction, the traction chain is wound around the sprocket on the corresponding rotating shaft and one end is connected to the counterweight block and the other end is connected to the cache rack on the same side as the counterweight block; transmission gears are provided on the two rotating shafts, the two transmission gears are meshed with each other, and one of the rotating shafts is also provided with a driven gear, and the driven gear is meshed with the driving gear.

[0013] As a further improvement of the present invention, the second lifting drive device has the same structure as the first lifting drive device.

[0014] As a further improvement of the present invention, the stacker also includes a stacker frame, the fork mounting frame is slidably installed in the stacker frame through a plurality of roller guide shoes, the fork mounting frame is provided with multiple layers of working space, each layer of the working space accommodates at least one bidirectional telescopic fork, and the bidirectional telescopic fork can extend outward from both sides of the working space; the second lifting drive device is installed on the top of the stacker frame and is transmission-connected to the fork mounting frame.

[0015] As a further improvement of the present invention, the shelf feeding line includes a second frame, a plurality of chain conveying mechanisms rotatably installed side by side on the second frame, a second transmission mechanism and a second motor, and the second motor is connected to the plurality of chain conveying mechanisms through the second transmission mechanism to drive the plurality of chain conveying mechanisms to rotate synchronously to transport the shelves.

[0016] As a further improvement of the present invention, the lifting conveyor line includes a lifting device and a conveying device for conveying the shelves, the lifting device includes a base, a driving motor fixed on the base, a driving shaft rotatably installed on the base, and two rotating blocks fixed at both ends of the driving shaft, both rotating blocks are axially provided with eccentric wheels, and the eccentric wheels are limited on the conveying device, the driving motor is used to drive the driving shaft to rotate, and drive the conveying device to perform lifting movements through the eccentric wheels.

[0017] As a further improvement of the present invention, the conveying device includes a third frame, and the third frame is fixed with an upper clamping plate and a lower clamping plate corresponding to the position of each eccentric wheel, and the eccentric wheel is in rolling contact between the upper clamping plate and the lower clamping plate; a pulley is also fixed on the third frame, and a guide plate is arranged on the base in the vertical direction, and the pulley is slidably mounted in the guide plate. Under the cooperation and limitation of the pulley and the guide plate, the conveying device can only perform lifting and lowering movements in the vertical direction driven by the eccentric wheel.

[0018] As a further improvement of the present invention, the shelf is provided with a rectangular outer frame, and a plurality of support bars for carrying products are arranged at intervals in the vertical direction on both sides of the outer frame, and a avoidance space for the two-way telescopic fork to extend into is reserved between the support bars on both sides of the shelf.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention provides a multi-layer synchronous high-speed stacking equipment, which uses a feed conveyor line to convey products, and caches multi-layer products through a cache station, and at the same time conveys shelves through a shelf feed line, and relies on a stacker to synchronously transfer multi-layer products cached in the cache station to the shelf, so as to realize synchronous stacking of multi-layer products. When the products are stacked on the shelf, the shelf is conveyed out through a shelf discharge line, thereby realizing fully automated high-speed stacking of products, improving the efficiency of stacking operations, being able to keep up with the overall rhythm of the production line, making production proceed in an orderly manner, and meeting the needs of large-scale production;

[0021] 2. The lifting drive device used in the cache station and stacker of the present invention can realize multi-stage differential speed and reversing functions, with good lifting synchronization and faster lifting speed. At the same time, since counterweights are provided on both sides, the force is more uniform, the load is larger, and the reliability is higher, so that multiple layers of products can be lifted at the same time;

[0022] 3. The cache station in the present invention can be applied to products of different sizes, increasing the versatility and flexibility of the stacking equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of the multi-layer synchronous high-speed stacking device of the present invention;

[0024] Figure 2 It is a three-dimensional diagram of the feed conveying line and the buffer station in the present invention;

[0025] Figure 3 It is a three-dimensional diagram of the feed conveying line in the present invention;

[0026] Figure 4 It is a right side view of the feed conveying line and the buffer station in the present invention;

[0027] Figure 5 A three-dimensional diagram of a cache station in the present invention;

[0028] Figure 6 A three-dimensional diagram of a stacker in the present invention;

[0029] Figure 7 It is a three-dimensional diagram of the material taking and placing mechanism in the present invention;

[0030] Figure 8 A three-dimensional diagram of the shelf conveyor line and the shelf in the present invention;

[0031] Fig. 9 A three-dimensional diagram of a shelf in the present invention;

[0032] Fig.10 It is a three-dimensional diagram of the shelf conveyor line in the present invention;

[0033] Fig.11It is a three-dimensional diagram of the jacking conveyor line in the present invention;

[0034] Fig.12 It is a three-dimensional diagram of the lifting device and the conveying device in the present invention.

[0035] Combined with the accompanying drawings, the following description is given:

[0036] 1. Product; 2. Feeding conveyor line; 21. First rack; 22. Synchronous belt conveyor mechanism; 23. First transmission mechanism; 24. First motor; 3. Cache station; 31. First lifting drive device; 311. Servo motor; 312. Driving gear; 313. Traction chain; 314. Counterweight; 315. Rotating shaft; 316. Transmission gear; 317. Driven gear; 32. Cache rack; 321. Carrier; 33. Gantry bracket; 4. Shelf feeding line; 41. Second rack; 42. Chain conveyor mechanism; 43. Second transmission mechanism; 44. Second motor; 5. Shelves; 51. Outer frame; 52. Support bars; 53. Avoidance space; 6. Lifting conveyor line; 61. Lifting device; 611. Base; 6111. Guide plate; 612. Drive motor; 613. Drive shaft; 614. Rotating block; 615. Eccentric wheel; 62. Conveying device; 621. Third frame; 6211. Upper clamping plate; 6212. Lower clamping plate; 6213. Pulley; 7. Stacker; 71. Second lifting drive device; 72. Pick-up and unloading mechanism; 721. Fork mounting frame; 722. Two-way telescopic fork; 723. Roller guide shoe; 73. Stacker frame. DETAILED DESCRIPTION

[0037] A preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.

[0038] See also Figures 1 to 12 The present invention provides a multi-layer synchronous high-speed stacking equipment, including: a feeding conveyor line 2, a cache station 3, a shelf conveyor line and a stacker 7.

[0039] The feed conveyor line 2 is used to convey the products 1 to be stacked. Figure 1 The orientation shown is for reference only, and the conveying direction of the feed conveyor line 2 is from right to left.

[0040] In this embodiment, product 1 specifically refers to a photovoltaic panel.

[0041] In the present invention, the cache station 3 is set up at the conveying end of the feed conveyor line 2. The cache station 3 includes a first lifting drive device 31 and two cache racks 32 symmetrically arranged on both sides of the feed conveyor line 2, and the spacing between the two cache racks 32 is less than the length of the product 1. Each cache rack 32 is provided with a multi-layer support rack 321 arranged and distributed in a vertical direction. In this embodiment, the support rack 321 is specifically composed of three layers: upper, middle and lower. Of course, in other embodiments of the present invention, the support rack 321 can also be two layers, four layers or more layers. The three layers of the support racks 321 are connected by a fixed plate only on the outermost side (i.e., the side close to the gantry bracket 33), and the other sides are not connected. It can be understood that the spacing between two adjacent layers of the support racks 321 is greater than the thickness of the product 1, so that the product 1 can be smoothly transported by the feed conveyor line 2 to the top of the corresponding support rack 321. The first lifting drive device 31 is transmission-connected to the two buffer racks 32, and is used for driving the two buffer racks 32 to rise synchronously, so as to lift up the product 1 delivered to the position by the feeding conveying line 2 through the corresponding supporting racks 321 on both sides.

[0042] It is understandable that, since each cache rack 32 in this embodiment is provided with three layers of supporting racks 321 , the cache station 3 can buffer three layers of products 1 in each stacking cycle.

[0043] In the present invention, the shelf conveyor line includes a shelf feeding line 4 and a shelf discharging line. The shelf feeding line 4 is used to convey the shelf 5 to the stacking station (i.e. Figure 1 The shelf outfeed line includes a lifting conveyor line 6 and a shelf outflow conveyor line (not shown in the figure). The lifting conveyor line 6 is located directly below the shelf 5 on the stacking station. The lifting conveyor line 6 is set lower than the shelf infeed line 4, and the shelf outflow conveyor line is set higher than the shelf infeed line 4. When the product 1 is stacked on the shelf 5, the shelf 5 on the stacking station is lifted by the lifting conveyor line 6, and the lifting conveyor line 6 can be connected with the shelf outflow conveyor line to convey the shelf 5 to the shelf outflow conveyor line, and then the shelf outflow conveyor line conveys the shelf 5 out.

[0044] In this embodiment, the conveying direction of the shelf feeding line 4 is opposite to the conveying direction of the feeding conveying line 2. Figure 1 The orientation shown is for reference only, i.e., the conveying direction of the shelf feed line 4 is from left to right; the conveying directions of the lifting conveyor line 6 and the shelf outflow conveyor line are consistent and are both perpendicular to the conveying direction of the shelf feed line 4.

[0045] In the present invention, the stacker 7 is arranged between the cache station 3 and the shelf conveyor line, and the stacker 7 includes a second lifting drive device 71 and a material picking and placing mechanism 72 driven by the second lifting drive device 71 to perform lifting movement. The material picking and placing mechanism 72 includes a fork mounting frame 721 and a bidirectional telescopic fork 722 installed on the fork mounting frame 721 at intervals in the vertical direction. The bidirectional telescopic fork 722 has the same number of layers as the carrier frame 321 and corresponds one to one; in this embodiment, the bidirectional telescopic fork 722 also has three layers of upper, middle and lower layers. With the cooperation of the second lifting drive device 71, the bidirectional telescopic fork 722 can be extended to the right to take away the three-layer product 1 cached in the cache station 3, and can also be extended to the left to place the three-layer product 1 on the shelf 5 synchronously, thereby realizing the synchronous stacking of multiple layers of products 1.

[0046] The present invention adopts a feed conveyor line 2 to convey product 1, and caches multi-layer products 1 through a cache station 3, and at the same time conveys shelf 5 through a shelf feed line 4, and relies on a stacker 7 to synchronously transfer the multi-layer products 1 cached on the cache station 3 to the shelf 5, so as to realize synchronous stacking of multi-layer products 1. After the product 1 is stacked on the shelf 5, the shelf 5 is conveyed out through the shelf discharging line, thereby realizing fully automated high-speed stacking operation of the product 1, improving the efficiency of the stacking operation, being able to keep up with the overall rhythm of the production line, making the production proceed in an orderly manner, and meeting the needs of large-scale production.

[0047] See also Figure 3 The feed conveyor line 2 includes a first frame 21, a plurality of synchronous belt conveyor mechanisms 22, a first transmission mechanism 23 and a first motor 24. In this embodiment, the synchronous belt conveyor mechanisms 22 are specifically provided with but not limited to three, and the three synchronous belt conveyor mechanisms 22 are rotatably installed side by side on the first frame 21, and each synchronous belt conveyor mechanism 22 is arranged along the conveying direction of the feed conveyor line 2.

[0048] In this embodiment, the synchronous belt conveyor mechanism 22 is specifically composed of a plurality of synchronous wheels and a synchronous belt wound around the synchronous wheels. The first motor 24 is connected to the plurality of synchronous belt conveyor mechanisms 22 through the first transmission mechanism 23. The product 1 is horizontally placed on three synchronous belt conveyor mechanisms 22. The first motor 24 drives the three synchronous belt conveyor mechanisms 22 to rotate synchronously through the first transmission mechanism 23 to convey the product 1.

[0049] In this embodiment, the first transmission mechanism 23 is a chain transmission mechanism, the three synchronous belt conveying mechanisms 22 are connected by a transmission shaft, and the chain transmission mechanism is connected between the transmission shaft and the first motor 24 .

[0050] In addition, a sensor is installed on the first frame 21 to detect whether the product 1 is delivered to the right position.

[0051] See also Figure 2The cache station 3 also includes a gantry support 33, which is set above the conveying end of the feed conveyor line 2. The two opposite inner sides of the gantry support 33 are fixed with slide rails in the vertical direction. The two cache racks 32 are symmetrically slid on the slide rails on both sides through sliders. The first lifting drive device 31 is installed on the top of the gantry support 33 and is transmission-connected to the two cache racks 32 to drive the two cache racks 32 to rise synchronously.

[0052] The caching process of cache station 3 is as follows:

[0053] At the beginning of caching, the two caching racks 32 are lowered to a position lower than the synchronous belt conveying mechanism 22;

[0054] When the first product 1 is delivered to the position, the feed conveyor line 2 stops conveying. At this time, the product 1 is located above the two upper-layer supporting racks 321. Then, the first lifting drive device 31 drives the two buffer racks 32 to rise synchronously. Since the distance between the two buffer racks 32 is smaller than the length of the product 1, the first product 1 can be lifted up to a certain height by the two upper-layer supporting racks 321. At this height, the two middle-layer supporting racks 321 are lower than the synchronous belt conveying mechanism 22.

[0055] After the feeding conveyor line 2 continues to convey the second product 1 to the position, the product 1 is located above the two middle-layer supporting racks 321, or between the upper-layer supporting racks 321 and the middle-layer supporting racks 321. The first lifting drive device 31 drives the two buffer racks 32 to be lifted synchronously again, and the second product 1 can be lifted upward to a certain height through the two middle-layer supporting racks 321. At this height, the two lower-layer supporting racks 321 are lower than the synchronous belt conveying mechanism 22.

[0056] After the feeding conveyor line 2 continues to convey the third product 1 to the destination, the product 1 is now located above the two lower support racks 321 (e.g. Figure 4 As shown), or in other words, it is between the middle-layer support rack 321 and the lower-layer support rack 321, and then the first lifting drive device 31 drives the two cache racks 32 to rise synchronously again, and the third product 1 can be lifted up through the two lower-layer support racks 321 and reach the handover station to wait for the stacker 7 to pick up the material.

[0057] The cache station 3 in the present invention adopts the above structure and can be applicable to products 1 of different sizes, thereby increasing the versatility and flexibility of the stacking equipment.

[0058] See also Figure 5 The first lifting drive device 31 includes a servo motor 311 fixed on the gantry bracket 33, a driving gear 312 fixed on the output shaft of the servo motor 311, and two lifting transmission mechanisms symmetrically installed on the gantry bracket 33.

[0059] Among them, both lifting transmission mechanisms include a traction chain 313, a counterweight 314, and a rotating shaft 315 with a sprocket rotatably mounted on the gantry bracket 33. Taking one of the lifting transmission mechanisms as an example, its counterweight 314 is slidably mounted on the gantry bracket 33 in the vertical direction, and the traction chain 313 is wound around the sprocket on the rotating shaft 315 and one end is fixedly connected to the counterweight 314, and the other end is fixedly connected to the buffer rack 32 on the same side as the counterweight 314. The structure of the other lifting transmission mechanism is also the same, and the two lifting transmission mechanisms are symmetrically distributed.

[0060] It is understandable that two shafts with sprockets are installed on the top of both sides of the gantry bracket 33 for the traction chain 313 to be wound thereon so as to change the direction of the traction chain 313 .

[0061] In addition, the two rotating shafts 315 in the two lifting transmission mechanisms are arranged side by side, and the two rotating shafts 315 are provided with transmission gears 316, and the two transmission gears 316 are meshed with each other; at the same time, one of the rotating shafts 315 is also provided with a driven gear 317, and the driven gear 317 is meshed with the driving gear 312. The number of teeth of the driven gear 317 is greater than the number of teeth of the driving gear 312.

[0062] When the servo motor 311 is working, the driving gear 312 drives the driven gear 317 and the corresponding rotating shaft 315 to rotate, and under the transmission of the two transmission gears 316, drives the other rotating shaft 315 to rotate synchronously, and pulls the buffer racks 32 on both sides to be lifted synchronously through their respective traction chains 313. The first lifting drive device 31 in the present invention can realize multi-stage differential and reversing functions by adopting this structure, and drives the two buffer racks 32 to lift synchronously with good synchronization and faster lifting speed. At the same time, since the counterweight blocks 314 are arranged on both sides, the force is more uniform, the load is larger, the reliability is higher, and multiple layers of products 1 can be lifted at the same time.

[0063] See also Figure 6 and Figure 7 The stacker 7 further includes a stacker frame 73, which is a rectangular frame. The top and bottom of the fork mounting frame 721 near the four corners are slidably mounted in the stacker frame 73 through roller guide shoes 723. Three layers of working space are correspondingly arranged in the fork mounting frame 721, and each layer of the working space accommodates at least one bidirectional telescopic fork 722, and the bidirectional telescopic fork 722 can extend outward from both sides of the working space. In this embodiment, two bidirectional telescopic forks 722 are specifically accommodated in each layer of the working space to improve the stability and reliability of the supported product 1.

[0064] It should be noted that the specific structure of the bidirectional telescopic fork 722 is not an improvement of the present application. It adopts existing conventional technology, such as a high-precision narrow heavy-duty fork disclosed in the Chinese invention patent application with application publication number CN118289680A and publication date 2024.07.05, and an RGV bidirectional telescopic fork disclosed in the Chinese invention patent application with application publication number CN109969999A and publication date 2019.07.05. Therefore, the present application will not go into details about this.

[0065] Furthermore, the second lifting drive device 71 is installed on the top of the stacking frame 73 and is connected to the fork mounting frame 721. The second lifting drive device 71 has the same structure as the first lifting drive device 31. However, in this embodiment, in order to improve the reliability of the second lifting drive device 71 driving the material picking and placing mechanism 72 to rise and fall, the second lifting drive device 71 adopts a double traction chain.

[0066] See also Figure 8 and Fig.10 The shelf feeding line 4 includes a second frame 41, a plurality of chain conveying mechanisms 42, a second transmission mechanism 43 and a second motor 44. In this embodiment, the chain conveying mechanisms 42 are specifically provided with but not limited to three, and the three chain conveying mechanisms 42 are rotatably installed side by side on the second frame 41, and each chain conveying mechanism 42 is arranged along the conveying direction of the shelf feeding line 4.

[0067] In this embodiment, the chain conveyor mechanism 42 is specifically composed of a plurality of sprockets and chains wound around the sprockets. The second motor 44 is connected to the three chain conveyor mechanisms 42 through the second transmission mechanism 43, and the shelf 5 is placed on the three chain conveyor mechanisms 42. The second motor 44 drives the three chain conveyor mechanisms 42 to rotate synchronously to convey the shelf 5 through the second transmission mechanism 43.

[0068] Wherein, limiting plates are installed on both sides of the second frame 41 to prevent the shelf 5 from deviating.

[0069] In this embodiment, the second transmission mechanism 43 also adopts a chain transmission mechanism. The three chain conveying mechanisms 42 are connected by a transmission shaft, and the chain transmission mechanism is connected between the transmission shaft and the second motor 44.

[0070] In addition, a sensor is also installed on the second frame 41 for detecting whether the shelf 5 is delivered to the right position.

[0071] See also Fig. 9The shelf 5 is provided with a rectangular outer frame 51, and a plurality of support bars 52 are arranged at intervals along the vertical direction on both sides of the inner portion of the outer frame 51, each of which is used to carry the product 1, and a clearance space 53 is reserved between the support bars 52 on both sides of the shelf 5 for the two-way telescopic fork 722 to extend into. Among them, a plurality of support rods are arranged at intervals along the vertical direction in the middle position of the outer frame 51, and the support rods cooperate with the support bars 52 on both sides to strengthen the load on the product 1.

[0072] See also Fig.11 and Fig.12 The lifting conveyor line 6 includes a lifting device 61 and a conveying device 62 for conveying the shelf 5 .

[0073] Specifically, the lifting device 61 includes a base 611, a driving motor 612, a driving shaft 613 and a rotating block 614. The driving motor 612 is fixed on the base 611. Two driving shafts 613 are provided. The two driving shafts 613 are rotatably mounted side by side on the base 611. The driving motor 612 is connected to the two driving shafts 613 through a chain transmission mechanism to drive the two driving shafts 613 to rotate synchronously. Rotating blocks 614 are fixed at both ends of the two driving shafts 613, and an eccentric wheel 615 is axially arranged on each rotating block 614. The four eccentric wheels 615 are all limited on the conveying device 62. When the driving motor 612 drives the driving shaft 613 to rotate, the conveying device 62 is driven to perform lifting and lowering motions through the eccentric wheel 615.

[0074] In this embodiment, the conveying principle of the conveying device 62 is consistent with the conveying principle of the shelf feeding line 4. The difference lies in: the conveying direction is different and the number of chain conveying mechanisms 42 is different, which will not be repeated.

[0075] The conveying device 62 includes a third frame 621, and an upper clamping plate 6211 and a lower clamping plate 6212 are fixed to the third frame 621 corresponding to the position of each eccentric wheel 615, and the eccentric wheel 615 rolls between the upper clamping plate 6211 and the lower clamping plate 6212. At the same time, pulleys 6213 are fixed to the opposite inner sides of the third frame 621, and two guide plates 6111 are provided on the base 611 in the vertical direction, and the pulleys 6213 are slidably fitted in the guide plates 6111 in the vertical direction in a one-to-one correspondence.

[0076] When the driving motor 612 drives the driving shaft 613 to rotate, the driving shaft 613 drives the rotating block 614 and the eccentric wheel 615 to rotate. During the rotation process, the eccentric wheel 615 is limited by the upper clamping plate 6211 and the lower clamping plate 6212, and can drive the conveying device 62 to do lifting and lowering movements; at the same time, under the cooperation and limitation of the pulley 6213 and the guide plate 6111, the conveying device 62 can only do lifting and lowering movements in the vertical direction driven by the eccentric wheel 615. After the product 1 is stacked on the shelf 5, the conveying device 62 is lifted upward by the lifting device 61, and the conveying device 62 lifts the shelf 5 upward and leaves the shelf feeding line 4 until the conveying device 62 is connected to the shelf outflow conveyor line, and the conveying device 62 conveys the shelf 5 to the shelf outflow conveyor line, and then the shelf outflow conveyor line conveys the shelf 5 out.

[0077] Fig.10 The direction indicated by the middle arrow represents the outflow direction of the shelf 5. The shelf outflow conveyor line is arranged on one side of the lifting conveyor line 6 along the direction indicated by the arrow. The shelf outflow conveyor line is not shown in the figure. Its structure is the same as that of the shelf feeding line 4, so it will not be described in detail.

[0078] The working process of the multi-layer synchronous high-speed stacking equipment of the present invention is as follows:

[0079] The feeding conveyor line 2 conveys the products 1 one by one toward the buffer station 3. The buffer station 3 buffers three layers of products 1 and lifts them to the handover station (see the above for the specific buffering process), waiting for the stacker 7 to pick up the materials; at the same time, the shelf feeding line 4 conveys a shelf 5 to the stacking station; then, the stacker 7 is activated, and the picking and unloading mechanism 72 reaches the position opposite to the handover station under the drive of the second lifting drive device 71. The three-layer bidirectional telescopic forks 722 extend toward the buffer station 3 at the same time and extend one by one under the three-layer product 1. The second lifting drive device 71 drives the picking and unloading mechanism 72 to lift up a certain height, and the three-layer bidirectional telescopic forks 722 simultaneously lift the three-layer product 1, and then the bidirectional telescopic forks 722 drive the product 1 to reset, and at the same time the buffer station 3 starts the buffering operation; then, the second lifting drive device 71 The material picking and placing mechanism 72 is driven to rise, so that the product 1 is aligned with the gap between two adjacent support bars 52 on the shelf 5, and the three-layer bidirectional telescopic fork 722 is extended toward the shelf 5 at the same time, driving the three-layer product 1 to move to the gap between the support bars 52, and the second lifting drive device 71 drives the material picking and placing mechanism 72 to descend to a certain height, and places the three-layer product 1 on the corresponding support bar 52, and then the bidirectional telescopic fork 722 is reset; this is repeated until the shelf 5 is filled with products 1 from top to bottom, and the conveying device 62 is lifted upward by the lifting device 61, and the conveying device 62 lifts the shelf 5 upward to leave the shelf feed line 4 until the conveying device 62 is connected to the shelf outflow conveyor line, and the conveying device 62 conveys the shelf 5 to the shelf outflow conveyor line, and then the shelf outflow conveyor line conveys the shelf 5 out.

[0080] It can be seen that the multi-layer synchronous high-speed stacking equipment of the present invention adopts a feed conveyor line 2 to convey product 1, and caches multi-layer products 1 through a cache station 3, and at the same time conveys shelf 5 through a shelf feed line 4, and relies on the stacker 7 to synchronously transfer the multi-layer products 1 cached on the cache station 3 to the shelf 5, so as to realize synchronous stacking of multi-layer products 1. After the product 1 is stacked on the shelf 5, the shelf 5 is conveyed out through the shelf discharge line, thereby realizing fully automated high-speed stacking operation of product 1, improving the efficiency of stacking operation, being able to keep up with the overall rhythm of the production line, making production proceed in an orderly manner, and meeting the needs of large-scale production; the lifting drive device adopted by the cache station 3 and the stacker 7 in the present invention can realize multi-stage differential and reversing functions, with good lifting synchronization and faster lifting speed. At the same time, since counterweight blocks 314 are arranged on both sides, the force is more uniform, the load is larger, and the reliability is higher, so that multi-layer products 1 can be lifted at the same time; in addition, the cache station 3 in the present invention can be suitable for products 1 of different sizes, which increases the versatility and flexibility of the stacking equipment.

[0081] Many specific details are described in the above description to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited to the specific implementation disclosed above. At the same time, any person familiar with the art can make many possible changes and modifications to the technical solution of the present invention using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A multi-layer synchronous high-speed stacking device, characterized in that: include: A feed conveyor line (2) for conveying the product (1); The buffer station (3) is erected at the conveying end of the feed conveyor line (2), and comprises a first lifting drive device (31) and two buffer racks (32) symmetrically arranged on both sides of the feed conveyor line (2), each of the buffer racks (32) is provided with a plurality of layers of supporting racks (321) arranged at intervals in the vertical direction, and the first lifting drive device (31) is used to drive the two buffer racks (32) to rise synchronously, so as to lift the product (1) delivered to the feed conveyor line (2) upwards through the corresponding supporting racks (321) on both sides; A rack conveyor line, comprising a rack feed line (4) and a rack discharge line, wherein the rack feed line (4) is used to convey a rack (5) to a stacking station; the rack discharge line comprises a lifting conveyor line (6) and a rack outflow conveyor line, wherein the conveying direction of the rack outflow conveyor line is perpendicular to the conveying direction of the rack feed line (4), and the rack outflow conveyor line is arranged higher than the rack feed line (4); the lifting conveyor line (6) is located directly below the rack (5) on the stacking station, the lifting conveyor line (6) is used to lift the rack (5) on the stacking station and dock with the rack outflow conveyor line, and can convey the rack (5) to the rack outflow conveyor line, and the rack outflow conveyor line is used to convey the rack (5) out; and a stacker (7), the stacker (7) being arranged between the cache station (3) and the shelf conveyor line, comprising a second lifting drive device (71) and a material picking and placing mechanism (72) driven by the second lifting drive device (71) to perform lifting movements, the material picking and placing mechanism (72) comprising a fork mounting frame (721) and bidirectional telescopic forks (722) arranged in a vertical direction and mounted on the fork mounting frame (721) at intervals and having the same number of layers as the carrier frame (321), the multi-layer bidirectional telescopic forks (722) cooperating with the second lifting drive device (71) to synchronously transfer multi-layer products (1) cached in the cache station (3) to the shelf (5); The lifting conveyor line (6) comprises a lifting device (61) and a conveying device (62) for conveying the shelf (5); the lifting device (61) comprises a base (611), a driving motor (612) fixed on the base (611), a driving shaft (613) rotatably mounted on the base (611), and two rotating blocks (614) fixed at both ends of the driving shaft (613); an eccentric wheel (615) is axially arranged on the two rotating blocks (614), and the eccentric wheel (615) is limited on the conveying device (62); the driving motor (612) is used to drive the driving shaft (613) to rotate, and drive the conveying device (62) to perform lifting movement through the eccentric wheel (615); the conveying device (62) comprises a third frame (621), and an upper clamping plate (6211) and a lower clamping plate (6212) are fixed to the third frame (621) corresponding to the position of each eccentric wheel (615), and the eccentric wheel (615) is in rolling contact between the upper clamping plate (6211) and the lower clamping plate (6212); a pulley (6213) is also fixed to the third frame (621), and a guide plate (6111) is provided on the base (611) in the vertical direction, and the pulley (6213) is slidably fitted in the guide plate (6111). Under the cooperation and limitation of the pulley (6213) and the guide plate (6111), the conveying device (62) can only perform lifting and lowering movement in the vertical direction under the drive of the eccentric wheel (615).

2. The multi-layer synchronous high-speed stacking equipment according to claim 1, characterized in that: The feed conveyor line (2) comprises a first frame (21), a plurality of synchronous belt conveyor mechanisms (22) rotatably mounted side by side on the first frame (21), a first transmission mechanism (23) and a first motor (24); the first motor (24) is connected to the plurality of synchronous belt conveyor mechanisms (22) via the first transmission mechanism (23) so as to drive the plurality of synchronous belt conveyor mechanisms (22) to rotate synchronously to convey the product (1).

3. The multi-layer synchronous high-speed stacking equipment according to claim 1, characterized in that: The cache station (3) also includes a gantry bracket (33), and two opposite inner sides of the gantry bracket (33) are fixed with slide rails in the vertical direction, and the two cache racks (32) are respectively slidably mounted on the slide rails on both sides; the first lifting drive device (31) is installed on the top of the gantry bracket (33) and is transmission-connected to the two cache racks (32).

4. The multi-layer synchronous high-speed stacking equipment according to claim 3 is characterized in that: The first lifting drive device (31) comprises a servo motor (311) fixed to the gantry support (33), a driving gear (312) fixed to an output shaft of the servo motor (311), and two lifting transmission mechanisms symmetrically mounted on the gantry support (33), the two lifting transmission mechanisms each comprising a traction chain (313), a counterweight (314), and a rotating shaft (315) rotatably mounted on the gantry support (33) and having a sprocket, the counterweight (314) being slidably mounted on the gantry support in a vertical direction. The traction chain (313) is wound around the sprocket on the corresponding rotating shaft (315) and one end is connected to the counterweight block (314), and the other end is connected to the cache rack (32) on the same side as the counterweight block (314); a transmission gear (316) is provided on each of the two rotating shafts (315), and the two transmission gears (316) are meshed with each other, and a driven gear (317) is also provided on one of the rotating shafts (315), and the driven gear (317) is meshed with the driving gear (312).

5. The multi-layer synchronous high-speed stacking equipment according to claim 4, characterized in that: The second lifting drive device (71) has the same structure as the first lifting drive device (31).

6. The multi-layer synchronous high-speed stacking equipment according to claim 1, characterized in that: The stacker (7) further comprises a stacker frame (73), the fork mounting frame (721) being slidably mounted in the stacker frame (73) via a plurality of roller guide shoes (723), the fork mounting frame (721) being provided with multiple layers of working space, each layer of the working space accommodating at least one bidirectional telescopic fork (722), and the bidirectional telescopic fork (722) being capable of extending outward from both sides of the working space; the second lifting drive device (71) being mounted on the top of the stacker frame (73) and being transmission-connected to the fork mounting frame (721).

7. The multi-layer synchronous high-speed stacking equipment according to claim 1, characterized in that: The shelf feeding line (4) comprises a second frame (41), a plurality of chain conveying mechanisms (42) rotatably mounted side by side on the second frame (41), a second transmission mechanism (43) and a second motor (44); the second motor (44) is connected to the plurality of chain conveying mechanisms (42) via the second transmission mechanism (43) so as to drive the plurality of chain conveying mechanisms (42) to rotate synchronously to convey the shelf (5).

8. The multi-layer synchronous high-speed stacking equipment according to claim 1, characterized in that: The shelf (5) is provided with a rectangular outer frame (51), and a plurality of support bars (52) for carrying products (1) are arranged at intervals in the vertical direction on both sides of the inner portion of the outer frame (51), and a clearance space (53) for the bidirectional telescopic fork (722) to extend into is reserved between the support bars (52) on both sides of the shelf (5).

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