A system for transferring stacks

Abstract

The present application relates to the technical field of automation production line, and discloses a stacking and transferring system, which comprises a linear transferring bracket, a rotary transferring bracket, a tray separating and moving device and a material preparation table.The linear transferring bracket is arranged between the tray separating and moving device and the material preparation table, the material preparation table is used for carrying stacks, and the linear transferring bracket moves the stacks on the material preparation table into the trays separated by the tray separating and moving device.The rotary transferring bracket is arranged on the side of the linear transferring bracket, and is used for rotating the stacks in the transferring process of the linear transferring bracket and moving the stacks into the trays separated by the tray separating and moving device.The present application can realize the automatic loading of stacks and trays, the placement direction of the stacks can be adjusted, the feeding direction requirement of subsequent operations can be met, and the degree of automation is high.

Description

Technical Field

[0001] This invention relates to the field of automated production line technology, and more specifically to a stacking and transfer system. Background Technology

[0002] Automated production processes typically include loading, sorting, processing, and unloading. A production line generally comprises multiple processing modules, each handling materials differently. For example, a cutting module cuts materials, while a stamping module stamps them. Materials need to be transferred between different modules. For instance, after cutting rolled materials into sheets, they need to be transferred to subsequent modules for further processing. This process usually requires manual operation of forklifts to transfer the materials to loading pallets, and currently, this process has a low level of automation.

[0003] Chinese patent CN202221806991.9 discloses an automatic material receiving device, including a transfer track and a transplanting track arranged perpendicularly to each other and spaced apart by a certain distance; a tray frame arranged on the transfer track facing the transplanting track; and a transplanting component arranged on the transplanting track facing the transfer track. The transplanting component is used to retrieve materials from the receiving position and place them into the corresponding position of the tray located in the working area. This solution needs improvement.

[0004] This invention overcomes the shortcomings of the prior art and provides a stacking and transfer system that can transfer stacks to pallets. Summary of the Invention

[0005] The main objective of this invention is to provide a stacking and transfer system, including a linear transfer bracket, a rotary transfer bracket, a pallet separation and moving device, and a preparation platform. The pallet separation and moving device transports stacked pallets and separates stacked pallets into individual pallets for transport. The linear transfer bracket is located between the pallet separation and moving device and the preparation platform, which supports the stacks. The linear transfer bracket moves the stacks from the preparation platform to the pallets separated by the pallet separation and moving device. The rotary transfer bracket is located on the side of the linear transfer bracket and is used to rotate the stacks during the transfer process and move them to the pallets separated by the pallet separation and moving device.

[0006] Optionally, the linear transfer tray and the rotary transfer tray are located on the side of the conveyor belt assembly; the conveyor plate moves the stacked pallets into the conveying channel via the conveyor track, the clamping assembly and the first lifting assembly separate the stacked pallets individually in the conveying channel, and the individually separated pallets are moved by the conveyor belt assembly to the unloading position of the linear transfer tray or the rotary transfer tray, and the stacks transferred by the linear transfer tray or the rotary transfer tray are loaded at the unloading position.

[0007] Optionally, the linear transfer bracket includes a second frame, a forklift rack, a support frame, a second lifting assembly, and a moving assembly; the support frame is fixedly connected to the second frame and is used to support stacking; the moving assembly is located on the second frame and connected to the forklift rack, and the moving assembly drives the forklift rack to move horizontally; the second lifting assembly is located on the moving assembly and connected to the forklift rack, and the second lifting assembly drives the forklift rack to move between above and below the support frame; the forklift rack is used to support stacking, and the length of the stacking section supported by the forklift rack is greater than the length of the stacking section supported by the support frame.

[0008] Optionally, the support frame includes multiple parallel support bars, which are perpendicular to the conveyor belt assembly in the pallet separation and moving device. The two ends of each support bar are fixedly connected to the second frame via columns. The forklift rack includes a second connecting plate and multiple parallel first forks. The first forks are fixedly connected to the second connecting plate, which is connected to the second lifting assembly and the moving assembly. The first forks and support bars are staggered, with one first fork positioned between adjacent support bars. Each support bar has a notch, and the notches between adjacent support bars are on the same straight line, perpendicular to the support bar. The notches on the same straight line form a fork groove, which accommodates the second fork of the rotating transfer rack.

[0009] Optionally, the moving component moves the first fork to below the stack on the preparation platform, the second lifting component moves the first fork upward to lift the stack, and the moving component moves the first fork carrying the stack toward the pallet separating moving device; the second lifting component moves the first fork carrying the stack downward to place the stack on the support bar, the moving component moves the first fork below the support bar, and then the second lifting component moves the first fork upward to change the position of the first fork supporting the stack.

[0010] Optionally, the rotary transfer bracket includes a third frame, a third lifting assembly, a rotating assembly, a translating assembly, and a third connecting plate; the edge of the third connecting plate extends several parallel second forks, which are used to support stacking; the third connecting plate is connected to the translating assembly, and the translating assembly drives the third connecting plate to move horizontally; the rotating assembly is connected to the translating assembly, and the rotating assembly drives the translating assembly to rotate; the rotating assembly is located on the third lifting assembly, and the third lifting assembly is located on the third frame, and the third lifting assembly drives the rotating assembly to lift and lower.

[0011] Optionally, the third lifting component moves the second fork downwards, positioning it below the stack supported by the support strip in the linear transfer bracket; the rotating component rotates the second fork, aligning it with the fork slot in the linear transfer bracket; the translation component moves the second fork horizontally into the fork slot; the third lifting component moves the second fork upwards within the fork slot, allowing it to support the stack above the fork slot; and the rotating component rotates the second fork to change the orientation of the stack.

[0012] Optionally, the material preparation platform includes multiple parallel support bars and support plates. The support bars are disposed on the support plates, and the width between adjacent support bars is equal to the width between the support bars in the linear transfer bracket. The support bars are used to support stacking, and the interval between adjacent support bars is used to accommodate the first fork bar in the linear transfer bracket. Each support bar includes multiple support units, and the support units in a single support bar are arranged sequentially. The support units are detachably connected to the support plates.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The stacking and transfer system provided by this invention separates stacked pallets into individual pallets using a pallet separation and moving device, and transports them to corresponding positions on a linear transfer rack or a rotary transfer rack for loading and stacking. The stacks are transferred from the preparation platform to the pallets via the linear transfer rack, or from the linear transfer rack to the pallets via the rotary transfer rack, while rotating the loading angle of the stacks. This solution enables automated loading of stacks and pallets, and the placement direction of the stacks is adjustable to meet the feeding direction requirements of subsequent operations, demonstrating a high degree of automation. Attached Figure Description

[0014] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0015] Figure 1 This is a schematic diagram of an embodiment of the stacking and transfer system of the present invention; Figure 2 This is a top view of an embodiment of the stacking and transfer system of the present invention; Figure 3 This is a schematic diagram of the pallet separation and movement device in an embodiment of the stacking and transfer system of the present invention; Figure 4 This is a partial enlarged view of embodiment A of the stacking and transfer system of the present invention; Figure 5 This is a side view of the pallet separation and moving device in an embodiment of the stacking and transfer system of the present invention; Figure 6 This is a cross-sectional view of the pallet separation and moving device in an embodiment of the stacking and transfer system of the present invention; Figure 7 This is a partial enlarged view of section B of the stacking and transfer system of the present invention; Figure 8 This is a top view of the pallet separation and moving device in an embodiment of the stacking and transfer system of the present invention; Figure 9 This is a schematic diagram of the holding component in an embodiment of the stacking and transfer system of the present invention; Figure 10 This is a schematic diagram of a linear transfer bracket in an embodiment of the stacking and transfer system of the present invention; Figure 11 This is a schematic diagram of a concealed support frame for a linear transfer bracket in an embodiment of the stacking and transfer system of the present invention; Figure 12 This is a side view of a linear transfer bracket in an embodiment of the stacking and transfer system of the present invention; Figure 13 This is a top view of a linear transfer bracket in an embodiment of the stacking and transfer system of the present invention; Figure 14 This is a cross-sectional view of the linear transfer bracket in an embodiment of the stacking and transfer system of the present invention; Figure 15 This is a schematic diagram of a rotating transfer bracket in an embodiment of the stacking and transfer system of the present invention; Figure 16 This is a top view of the rotating transfer bracket in an embodiment of the stacking and transfer system of the present invention; Figure 17 This is a front view of the rotating transfer bracket in an embodiment of the stacking and transfer system of the present invention; Figure 18 This is a side view of the rotating transfer bracket in an embodiment of the stacking and transfer system of the present invention; Figure 19 This is a schematic diagram of the material preparation platform in an embodiment of the stacking and transfer system of the present invention.

[0016] Figure label: 100 - Pallet separating and moving device; 110 - First frame; 111 - Conveying channel; 120 - Holding assembly; 121 - First connecting plate; 122 - Moving plate; 1221 - Holding part; 123 - Support base; 124 - Movable assembly; 1241 - Second slider; 1242 - Second guide rail; 1243 - Support wheel; 1244 - First cylinder; 125 - Connecting base; 126 - First slider; 130 - First lifting assembly; 131 - First power component; 132 - First guide rail; 133 - Chain drive assembly; 1331 - First drive sprocket; 1332 133-First driven sprocket; 134-First chain; 140-Drive rod; 141-Transmission track; 141-Transmission plate; 1411-Connecting part; 1412-Bearing part; 142-First rack; 143-Second power component; 144-Third slider; 145-First gear; 150-Conveyor belt assembly; 151-Transmission unit; 1511-Support frame; 1512-Drive belt; 1513-Conveyor belt; 1514-Third power component; 1515-Second driving sprocket; 1516-Second driven sprocket; 1517-Second cylinder; 1518-Baffle; 200-Linear transfer bracket; 210-Second frame; 211-Third guide rail; 212-Second rack; 220-Forklift holder; 221-Second connecting plate; 222-First fork; 223-Sixth power component; 224-Third gear; 225-Fifth slider; 2221-Boss; 230-Support bracket; 231-Support strip; 232-Column; 233-Notch; 234-Fork slot; 240-Second lifting assembly; 241-Fourth power component; 242-First guide column; 250-Moving assembly; 251-Support frame; 252-Fifth power component; 253-Second gear; 254-Fourth slider; 255-Fourth guide rail; 256-Third rack; 257-Moving plate; 300-Rotating transfer bracket; 310-Third frame; 320-Third lifting assembly; 321-Lifting frame; 322-Seventh power component; 323-Second guide column; 330-Rotating assembly; 331-Rotating plate; 332-Eighth power component; 333-Drive gear; 334-Gear tooth; 335-Bearing; 340-Translation assembly; 341-Fifth guide rail; 342-Fourth rack; 343-Fourth gear; 344-Sixth slider; 345-Ninth power component; 350-Third connecting plate; 351-Second fork; 400-Preparation table; 410-Bearing strip; 411-Bearing unit; 420-Bearing plate; 500-Pallet; 510-Notch; 520-Supporting frame; 530-Horizontal bar. Detailed Implementation

[0017] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly connected to the other element, or there may be one or more intermediate elements present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "attached" should be interpreted broadly.

[0018] In automated production lines, certain materials or materials processed in previous stages often require loading onto pallets or other supports before transport to prevent damage from direct material transport and ensure the yield of products in subsequent processing. This invention addresses the problem of transporting stacked materials to pallets and how to transport and distribute these pallets. The automated production line in this invention can specifically be a cutting line or a stamping line. Pallets are particularly suitable for loading stacked metal materials, where stacking refers to the accumulation of multiple pieces of metal.

[0019] like Figure 1-18 The diagram shown is a schematic representation of an embodiment of the stacking and transfer system provided by the present invention.

[0020] Please refer to Figure 1-18 This embodiment is used for stacking and pallet transport, and loads the transported stacks onto pallets. This embodiment includes a pallet separating and moving device 100, a linear transfer bracket 200, a rotary transfer bracket 300, and a preparation table 400.

[0021] The pallet separating and moving device 100 transports stacked pallets 500 and separates the stacked pallets 500 into individual pallets 500 and transports them. A linear transfer carriage 200 is located between the pallet separating and moving device 100 and a preparation platform 400, which supports stacks. The linear transfer carriage 200 moves the stacks from the preparation platform 400 to the pallets 500 separated by the pallet separating and moving device 100. A rotary transfer carriage 300 is located on the side of the linear transfer carriage 200 and is used to rotate the stacks during the transfer process and move them to the pallets 500 separated by the pallet separating and moving device 100.

[0022] In one embodiment, such as Figure 3-9As shown, the pallet separating and moving device 100 includes a first frame 110, a clamping assembly 120, a first lifting assembly 130, a conveyor rail 140, and a conveyor belt assembly 150. The first frame 110 has a vertical conveying channel 111 inside. The conveyor rail 140 connects to the inlet of the conveying channel 111 and extends to the outside of the first frame 110, connecting with the outside of the first frame 110. The conveyor rail 140 does not extend into the conveying channel 111 to avoid obstruction and interference to the pallet 500 when it moves inside the conveying channel 111. The conveyor belt assembly 150 is located at the outlet of the conveying channel 111, and the conveyor rail 140 is located above the conveyor belt assembly 150.

[0023] The conveyor track 140 is equipped with a conveyor plate 141. The conveyor plate 141 moves along the conveyor track 140 into the conveying channel 111 inside the first frame 110. The conveyor belt assembly 150 covers the interior of the first frame 110. The conveyor plate 141 is used to carry the pallet 500. The first lifting assembly 130 is located on the first frame 110 and is connected to the clamping assembly 120. The clamping assembly 120 is used to carry and separate the pallet 500. The first lifting assembly 130 drives the clamping assembly 120 to move between the inlet and outlet of the conveying channel 111.

[0024] The conveyor plate 141 moves the stacked pallets 500 into the conveyor channel 111. The first lifting assembly 130 moves the clamping assembly 120 to the position of the upper conveyor plate 141. The clamping assembly 120 clamps the pallets 500 from both sides. The first lifting assembly 130 moves the pallets 500 upwards and separates them from the conveyor plate 141. The conveyor plate 141 exits from the conveyor channel 111. The first lifting assembly 130 moves the clamping assembly 120, which clamps the pallets 500, to the lower conveyor belt assembly 150. The clamping assembly 120 clamps the second-to-last pallet, specifically the second-to-last pallet among the stacked pallets 500. The first lifting assembly 130 moves the clamping assembly 120 upwards, separating the stacked pallets above from the bottom single pallet. The bottom single pallet is conveyed to the outside of the conveyor channel 111 by the conveyor belt assembly 150. This process is repeated to complete the individual separation of the stacked pallets inside the conveyor channel 111.

[0025] like Figure 9 As shown, the holding assembly 120 includes a first connecting plate 121 and a movable plate 122, which are arranged perpendicularly to each other. The first connecting plate 121 is provided with a support base 123, and the movable plate 122 is disposed on the support base 123. The movable plate 122 is connected to the support base 123 through a movable component 124, and the movable plate 122 can move horizontally through the movable component 124. There are two support bases 123, which are symmetrically arranged on both sides of the movable plate 122.

[0026] The first connecting plate 121 is provided with a connecting seat 125 and a first slider 126. The first connecting plate 121 is connected to the first chain 1333 in the first lifting assembly 130 through the connecting seat 125. The first slider 126 is matched and connected to the first guide rail 132 in the first lifting assembly 130. When the first chain 1333 moves, it drives the connecting seat 125 to rise and fall along the first guide rail 132, thereby driving the first connecting plate 121 and the moving plate 122 to rise and fall along the first guide rail 132.

[0027] A retaining part 1221 is provided on the front side of the movable plate 122. The retaining part 1221 is moved into the notch 510 of the tray 500 by the movable component 124. Specifically, the retaining part 1221 consists of two symmetrically arranged rectangular plates extending from the front side of the movable plate 122. They are moved into the notch 510 of the tray 500 by the movable component 124. At this time, the tray 500 is supported above the retaining part 1221. The tray 500 is raised and lowered by the first lifting component 130. According to the position of a single tray in the stacked trays, the conveyor belt component 150 below is used to separate the individual trays. In this embodiment, there are two sets of retaining components 120, which retain the two sides of the tray 500.

[0028] The movable component 124 includes a second slider 1241, a second guide rail 1242, a support wheel 1243, and a first cylinder 1244. The first cylinder 1244 is located on the first connecting plate 121, and its telescopic end is connected to the moving plate 122. The second guide rail 1242 is located on the support base 123, and the second slider 1241 is located below the moving plate 122. The second slider 1241 is matched and connected to the second guide rail 1242, and the second guide rail 1242 is oriented towards the notch 510 of the tray. The first cylinder 1244 pushes the moving plate 122 along the second guide rail 1242 towards or away from the tray inside the conveying channel 111, pushing the holding part 1221 of the moving plate 122 into or out of the notch 510 of the tray 500. The support wheel 1243 is located on the support base 123, between the moving plate 122 and the support base 123. The support wheel 1243 serves to support the movable plate 122 and at the same time reduce the friction between the movable plate 122 and the support seat 123.

[0029] The first lifting assembly 130 includes a first power component 131, a first guide rail 132, and a chain drive assembly 133. The first power component 131 and the first guide rail 132 are respectively mounted on the first frame 110. The first guide rail 132 is vertically arranged and parallel to the direction of the conveying channel 111, and the length of the first guide rail 132 is greater than the length of the conveying channel 111. The first guide rail 132 is matched and connected to the first slider 126 in the holding assembly 120, and the chain drive assembly 133 is fixedly connected to the connecting seat 125 in the holding assembly 120. The first power component drives the chain drive assembly to move along the direction of the conveying channel. The first power component 131 can specifically be a motor.

[0030] There are four chain drive assemblies 133, distributed at the four corners of the first frame 110. The first power component 131 drives the four chain drive assemblies to move synchronously via the transmission rod 134. Each chain drive assembly 133 includes a first driving sprocket 1331, a first driven sprocket 1332, and a first chain 1333. The first power component 131 drives the first driving sprocket 1331 to rotate via the transmission rod 134. The first chain 1333 is wound between the first driving sprocket 1331 and the first driven sprocket 1332. The length of the first chain 1333 between the first driving sprocket 1331 and the first driven sprocket 1332 is greater than the length of the 111 section of the conveying channel.

[0031] The conveyor track 140 is equipped with a first rack 142, which is parallel to the conveyor track 140 and its length matches the length of the conveyor track 140. The conveyor plate 141 is equipped with a second power component 143, a third slider 144, and a first gear 145. The second power component 143 is connected to the first gear 145, which meshes with the first rack 142. The third slider 144 is located on the lower side of the conveyor plate 141 and is matched and connected to the conveyor track 140. The conveyor plate 141 moves using a rack and pinion transmission method. The second power component 143 can specifically be a motor.

[0032] The conveyor plate 141 includes a connecting part 1411 and a supporting part 1412, which are connected and designed as a single unit. The second power component 143, the third slider 144, and the first gear 145 are located in the connecting part 1411. The supporting part 1412 is used to support the pallet 500. When the conveyor plate 141 is at the end of the conveyor track 140, the connecting part 1411 is located outside the first frame 110, and the supporting part 1412 is located in the conveying channel 111 inside the first frame 110.

[0033] To avoid interference with the pallet’s vertical movement within the conveyor channel 111, the conveyor track 140 does not extend into the conveyor channel 111. Therefore, the conveyor plate 141 needs to extend out a support portion 1412 to send the pallet into the conveyor channel 111, and then the pallet is held in place by the clamping assembly 120. After that, the conveyor plate 141 moves along the conveyor track 140 and exits from the conveyor channel 111.

[0034] The conveyor belt assembly 150 includes multiple conveying units 151, which are sequentially connected. A single conveying unit 151 is connected to the bottom of the conveying channel 111. Each conveying unit 151 includes a support frame 1511, a drive belt 1512, a conveyor belt 1513, a third power component 1514, a second drive sprocket 1515, and a second driven sprocket 1516. The third power component 1514 is located on the support frame 1511. The second drive sprocket 1515 and the second driven sprocket 1516 are respectively located on both sides of the upper end of the support frame 1511. The conveyor belt 1513 is wound between the second drive sprocket 1515 and the second driven sprocket 1516. The third power component 1514 is poweredly connected to the second drive sprocket 1515 via the drive belt 1512. Specifically, the third power component 1514 can be a motor. By using the combination of conveying units 151, the conveying speed of each conveyor belt 1513 can be controlled independently, which means that the entire conveying range contains multiple speed ranges, making the control more flexible and facilitating the control of the conveying distance between pallets.

[0035] The conveying unit 151 also includes a second cylinder 1517 and a baffle 1518. The second cylinder 1517 and the baffle 1518 are located on the side of the conveyor belt 1513. The second cylinder 1517 is mounted on the support frame 1511, and the telescopic end of the second cylinder 1517 is connected to the baffle 1518. The second cylinder 1517 drives the baffle 1518 to extend from the side of the conveyor belt 1513, higher than the plane on the upper side of the conveyor belt 1513, or the second cylinder 1517 drives the baffle 1518 to retract, lower than the plane on the upper side of the conveyor belt 1513. The second cylinder 1517 and the baffle 1518 are respectively provided on both sides of the conveyor belt 1513. The second cylinder 1517 and the baffle 1518 can block the pallet 500 conveyed by the conveyor belt 1513, stopping the pallet 500 from moving, so that the linear transfer bracket 200 or the rotary transfer bracket 300 can place the stacked pallet on the pallet.

[0036] In one embodiment, such as Figure 10-14As shown, the linear transfer tray 200 and the rotary transfer tray 300 are located on the sides of the conveyor belt assembly 150, specifically on the sides of the conveyor unit 151. The conveyor plate 141 moves the stacked pallets 500 into the conveying channel 111 via the conveyor track 140. The clamping assembly 120 and the first lifting assembly 130 separate the stacked pallets 500 individually within the conveying channel 111. The individually separated pallets 500 are moved by the conveyor belt assembly 150 to the unloading position of the linear transfer tray 200 or the rotary transfer tray 300, where the stacks transferred by the linear transfer tray 200 or the rotary transfer tray 300 are loaded.

[0037] In one embodiment, the linear transfer carriage 200 includes a second frame 210, a forklift rack 220, a support frame 230, a second lifting assembly 240, and a moving assembly 250. The support frame 230 is fixedly connected to the second frame 210 and is used to support stacks. The forklift rack 220 is also used to support stacks, and the length of the stack supported by the forklift rack 220 is greater than the length of the stack supported by the support frame 230. The moving assembly 250 is located on the second frame 210 and connected to the forklift rack 220, driving the forklift rack 220 to move horizontally. The second lifting assembly 240 is located on the moving assembly 250 and connected to the forklift rack 220, driving the forklift rack 220 to move between above and below the support frame 230.

[0038] The forklift 220 carries a longer section of stack than the support frame 230, therefore the forklift 220 can extend from the front or rear of the support frame 230 via the moving component 250. When the forklift 220 is above the support frame 230, it carries the stack; when it is below the support frame 230, it carries the stack. While the support frame 230 carries the stack, the forklift 220 moves below it, changing the position of the stack. By alternating the support frame and support frame in carrying the stack, the placement of the stack on the support frame 230 and the forklift 220 is changed, thus moving the stack from the preparation platform at the front of the support frame 230 to the pallet at the rear of the support frame 230.

[0039] Furthermore, the support frame 230 includes multiple parallel support bars 231, with both ends of the support bars 231 fixedly connected to the second frame 210 via columns 232. The forklift frame 220 includes a second connecting plate 221 and multiple parallel first forks 222. The first forks 222 are fixedly connected to the second connecting plate 221, which is connected to the second lifting assembly 240 and the moving assembly 250. The first forks 222 are staggered with the support bars 231, with a first fork 222 positioned in the interval between adjacent support bars 231. This ensures that the first forks 222 do not encounter obstruction or interference when moving above or below the support bars 231, nor do they encounter obstruction or interference when extending from the front or rear end of the support bars 231. The moving assembly 250 drives the first forks 222 to move along the interval direction between the support bars 231, i.e., in the parallel direction of the support bars 231.

[0040] The length of the first fork 222 is greater than the length of the support bar 231, and the first fork 222 can pass through the vertical planes containing both ends of the support bar 231. By selecting a length for the first fork 222 that is longer than the support bar 231, the length of the stacking section carried by the forklift 220 is greater than the length of the stacking section carried by the support bar 230. In this way, the first fork 222 can extend out of the front end of the support bar 231 to pick up the stacks on the preparation platform, and can also extend out of the rear end of the support bar 231 to place the stacks onto the pallet 500, with no interference during the picking up and placing of the stacks.

[0041] The first fork 222 protrudes outward from the middle to form a boss 2221. The first fork 222 is fixedly connected to the second connecting plate 221 through the boss 2221. The height of the boss 2221 is greater than the thickness of the support strip 231. By connecting the second connecting plate 221 through the boss 2221, the first fork 222 has an initial height, which can reduce the travel of the second lifting assembly 240 and thus avoid the second connecting plate 221 from colliding and interfering with the support strip 231 due to excessive upward movement.

[0042] The support strip 231 has a notch 233. The notches 233 between adjacent support strips 231 are located on the same straight line, which is perpendicular to the support strip 231. The notches on the same straight line form a fork slot 234, which is used to accommodate the second fork 351 of the rotary transfer bracket 300. The rotary transfer bracket 300 is located on the side of the support strip 230. When the stack is located on the fork slot 234, the second fork 351 of the rotary transfer bracket 300 extends into the fork slot 234 to lift and support the stack, transfer the stack from the linear transfer bracket 200, rotate it, and place it into the pallet 500.

[0043] The second lifting assembly 240 is located below the support bar 231. The second lifting assembly 240 includes a fourth power component 241 and first guide columns 242. The fourth power component 241 is located on the moving assembly 250, and its telescopic end is connected to the second connecting plate 221. The first guide columns 242 are located on the moving assembly 250 and are connected to the second connecting plate 221. Specifically, the fourth power component 241 is a lifting cylinder. Multiple first guide columns 242 are symmetrically distributed around the fourth power component 241, serving to support and guide the second connecting plate 221.

[0044] The moving component 250 includes a support frame 251, which is movably connected to the second frame 210 at its lower part. A movable plate 257 is provided above the support frame 251, and a second lifting component 240 is provided on the upper side of the movable plate 257. The lower side of the movable plate 257 is movably connected to the support frame 251. The movable plate 257 moves along the interval direction between the support bars 231. The moving direction of the support frame 251 in the second frame 210 is parallel to the moving direction of the second connecting plate 221. The support frame 251 is movable, and the movable plate 257 carried by the support frame 251 can move on the support frame 251. This range-extending design can increase the traveling distance of the forklift 220.

[0045] Specifically, the movement of the support frame 251 and the movable plate 257 is achieved through a rack and pinion transmission. The second frame 210 is equipped with a parallel third guide rail 211 and a second rack 212. The direction of the third guide rail 211 is parallel to the spacing direction between the support bars 231. The support frame 251 is equipped with a fifth power component 252, which is connected to a second gear 253. The second gear 253 meshes with the second rack 212. The lower side of the support frame 251 is slidably connected to the third guide rail 211 via a fourth slider 254. The upper side of the support frame 251 is equipped with a fourth guide rail 255 and a third rack 256. The direction of the fourth guide rail 255 is parallel to the direction of the third guide rail 211. The movable plate 257 is equipped with a sixth power component 223, which is connected to a third gear 224. The third gear 224 meshes with the third rack 256. The lower side of the movable plate 257 is slidably connected to the second guide rail 156 via a fifth slider 225. The fifth power component 252 and the sixth power component 223 can specifically be motors.

[0046] In one embodiment, the moving component 250 moves the first fork 222 to below the stack on the preparation platform 400. The second lifting component 240 moves the first fork upward to lift the stack. The moving component 250 moves the first fork 222 carrying the stack toward the pallet separating and moving device 100. The second lifting component 240 moves the first fork 222 carrying the stack downward to place the stack on the support bar 231. The moving component 250 moves the first fork 222 below the support bar 231, and then the second lifting component 240 moves the first fork 222 upward to change the position of the first fork 222 supporting the stack.

[0047] In one embodiment, such as Figure 15-18 As shown, the rotary transfer bracket 300 includes a third frame 310, a third lifting assembly 320, a rotating assembly 330, a translating assembly 340, and a third connecting plate 350. Several parallel second forks 351 extend from the edge of the third connecting plate 350, and the second forks 351 are used to support stacking. The third connecting plate 350 is connected to the translating assembly 340, and the translating assembly 340 drives the third connecting plate 350 to move horizontally. The rotating assembly 330 is connected to the translating assembly 340, and the rotating assembly 330 drives the translating assembly 340 to rotate. The rotating assembly 330 is located on the third lifting assembly 320, which is located on the third frame 310, and the third lifting assembly 320 drives the rotating assembly 330 to rise and fall.

[0048] The second fork 351 is aligned with the fork slot via the third lifting assembly 320 and the rotating assembly 330. The translation assembly 340 moves the fork into the fork slot, positioning it below the stack. The third lifting assembly 320 raises the second fork 351, causing it to support the stack above the fork slot. The rotating assembly 330 rotates the second fork 351, causing the stack it supports to change direction. The stack, after changing direction, is placed in the pallet 500 via the third lifting assembly 320 and the translation assembly 340.

[0049] The third lifting assembly 320 includes a lifting frame 321, a seventh power component 322, and second guide columns 323. The seventh power component 322 and second guide columns 323 are located on the third frame 310, below the lifting frame 321. The seventh power component 322 is connected to the lower side of the lifting frame 321 and drives the lifting frame 321 to rise and fall. The second guide columns 323 are connected to the lower side of the lifting frame 321, and the upper side of the lifting frame 321 is connected to the rotating assembly 330. Further, the seventh power component 322 is located in the middle of the lifting frame 321, connecting to the lower middle part of the lifting frame 321. Multiple second guide columns 323 are evenly distributed around the seventh power component 322. Specifically, the seventh power component 322 can be a lifting cylinder. Four second guide columns 323 are evenly distributed at the four corners of the lifting frame 321, used for guiding the lifting frame 321 during lifting and falling.

[0050] The rotating assembly 330 includes a rotating plate 331, an eighth power component 332, and a drive gear 333. The eighth power component 332 is located in the third lifting assembly 320 and is connected to the drive gear 333, driving the drive gear 333 to rotate.

[0051] The rotating plate 331 has teeth 334 on its arc-shaped edge, which mesh with the driving gear 333. The lower side of the rotating plate 331 is connected to the third lifting assembly 320 via a bearing 335. The upper side of the rotating plate 331 has a translation assembly 340 and a third connecting plate 350. The eighth power component 332 can specifically be a motor. The teeth 334 on the arc-shaped edge of the rotating plate 331 range from 1 / 4 to 1 / 2 of the circumference, preferably 1 / 4 of the circumference in this embodiment, which can drive the stack to rotate 90 degrees before placing it on the pallet. Alternatively, the teeth 334 on the arc-shaped edge of the rotating plate 331 can be replaced with a driven gear. The driven gear meshes with the driving gear 333, and the upper end face of the driven gear is fixedly connected to the lower side of the rotating plate 331. The lower end face of the driven gear is connected to the third lifting assembly 320 via a bearing 335. The upper side of the rotating plate 331 has a translation assembly 340 and a third connecting plate 350.

[0052] The translation component 340 employs a rack and pinion transmission system, specifically including a fifth guide rail 341, a fourth rack 342, a fourth gear 343, a sixth slider 344, and a ninth power component 345. The fifth guide rail 341 and the fourth rack 342 are arranged parallel to each other on the upper surface of the rotating plate 331 in the rotation component 330. The ninth power component 345 is located on the third connecting plate 350 and connects to the fourth gear 343, which meshes with the fourth rack 342. The sixth slider 344 is located on the lower surface of the third connecting plate 350 and is matched and connected to the fifth guide rail 341, sliding along the fifth guide rail 341. The ninth power component 345 can specifically be a motor.

[0053] The second fork 351 matches the fork slot of the linear transfer bracket 200. The thickness of the second fork 351 is less than the depth of the fork slot, and the width of the second fork 351 is less than the width of the fork slot. The second fork 351 can enter the interior of the fork slot. The second fork 351 is aligned with the fork slot via the third lifting assembly 320 and moved into the fork slot via the translation assembly 340. Inside the fork slot, the second fork 351 is lifted by the third lifting assembly 320 to support the stack above the fork slot. The second fork 351 changes the placement direction of the stack via the rotation assembly 330.

[0054] In one embodiment, such as Figure 19As shown, the material preparation table 400 includes multiple parallelly arranged support bars 410 and support plates 420. The support bars 410 are disposed on the support plates 420, and the width between adjacent support bars 410 is equal to the width between the support bars 231 in the linear transfer bracket 200. The support bars 410 are used to support stacking. The height of the support bars 410 is greater than the thickness of the first fork bar 222, and the spacing between adjacent support bars 410 is used to accommodate the first fork bar 222 in the linear transfer bracket 200. Further, each support bar 410 includes multiple support units 411, which are arranged sequentially. The support units 411 are detachably connected to the support plates 410. This design allows adjustment of the load-bearing range of the material preparation table 400 according to the contact area of ​​the stacked material.

[0055] In one embodiment, the tray 500 includes a support frame 520 and crossbars 530. The support frame 520 has a notch 510 on its lower side for the retaining portion 1221 of the retaining assembly 120 to extend into. The upper side of the support frame 520 has a plurality of parallel crossbars 530, the spacing between adjacent crossbars 530 being greater than the width of the first fork 222 and the second fork 351, and the height of the crossbars 530 being greater than the thickness of the first fork 222 and the second fork 351.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Under the concept of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stacking and transfer system, characterized in that, Includes linear transfer trays, rotary transfer trays, pallet separation and moving devices, and material preparation tables; The pallet separating and moving device transports stacked pallets and separates stacked pallets into individual pallets and transports them. The linear transfer bracket is located between the pallet separating and moving device and the material preparation platform. The material preparation platform is used to support stacking, and the linear transfer bracket moves the stacking on the material preparation platform to the pallet separated by the pallet separating and moving device. The linear transfer bracket includes a second frame, a forklift rack, a support frame, a second lifting assembly, and a moving assembly; the support frame is fixedly connected to the second frame, the moving assembly is disposed on the second frame, and the moving assembly is connected to the forklift rack; the second lifting assembly is disposed on the moving assembly, and the second lifting assembly is connected to the forklift rack. The support frame includes multiple parallel support bars, which are perpendicular to the conveyor belt assembly in the pallet separating and moving device, and are fixedly connected to the second frame; the forklift includes multiple parallel first forks, which are staggered with the support bars. The moving component moves the first fork to the bottom of the stack on the preparation platform, the second lifting component moves the first fork upward to lift the stack, and the moving component moves the first fork carrying the stack toward the pallet separating moving device. The second lifting component moves the first fork supporting the stack downwards, placing the stack on the support bar. The moving component moves the first fork below the support bar, and then the second lifting component moves the first fork upwards, changing the position of the first fork supporting the stack. The rotating transfer tray is located on the side of the linear transfer tray and is used to rotate the stacking direction during the transfer process of the linear transfer tray and move it to the tray separated by the tray separation and moving device.

2. The stacking and transfer system according to claim 1, characterized in that, The pallet separation and moving device includes a first frame, a clamping assembly, a first lifting assembly, a conveyor track, and a conveyor belt assembly; The first frame has a vertical conveying channel inside, the conveying track extends to the outside of the first frame, the conveying track connects to the inlet of the conveying channel, the conveyor belt assembly is located at the outlet of the conveying channel, and the conveying track is located above the conveyor belt assembly; The conveyor track is equipped with a conveyor plate, which moves along the conveyor track into the conveying channel inside the first frame. The conveyor belt assembly covers the inside of the first frame, and the conveyor plate is used to support stacked pallets. The first lifting component is mounted on the first frame and is connected to the clamping component. The clamping component is used to clamp the tray, and the first lifting component drives the clamping component to move between the inlet and outlet of the conveying channel.

3. The stacking and transfer system according to claim 2, characterized in that, The linear transfer bracket and the rotary transfer bracket are respectively located on the side of the conveyor belt assembly; The conveyor plate moves the stacked pallets into the conveying channel via the conveyor track. The clamping assembly and the first lifting assembly separate the stacked pallets individually within the conveying channel. The separated pallets are then moved by the conveyor belt assembly to the unloading position of the linear transfer bracket or rotary transfer bracket, where they are loaded onto the stack for transfer by the linear transfer bracket or rotary transfer bracket.

4. The stacking and transfer system according to claim 1, characterized in that, The support frame is used to support the stack, the moving component drives the forklift to move horizontally, and the second lifting component drives the forklift to move between above and below the support frame; the forklift is used to support the stack, and the length of the stack supported by the forklift is greater than the length of the stack supported by the support frame.

5. The stacking and transfer system according to claim 4, characterized in that, The first and last ends of the support strip are fixedly connected to the second frame via columns; The forklift includes a second connecting plate, the first fork is fixedly connected to the second connecting plate, the second connecting plate is connected to the second lifting assembly and the moving assembly, and a first fork is provided in the interval between adjacent support bars; The support strip has a notch, and the notches between adjacent support strips are located on the same straight line, which is perpendicular to the support strip. The notches on the same straight line form a fork groove, which is used to accommodate the second fork of the rotating transfer bracket.

6. The stacking and transfer system according to claim 1, characterized in that, The rotating transfer bracket includes a third frame, a third lifting assembly, a rotating assembly, a translating assembly, and a third connecting plate; several parallel second forks extend from the edge of the third connecting plate, the second forks being used to support stacking; the third connecting plate is connected to the translating assembly, the translating assembly driving the third connecting plate to move horizontally; the rotating assembly is connected to the translating assembly, the rotating assembly driving the translating assembly to rotate; the rotating assembly is located on the third lifting assembly, the third lifting assembly is located on the third frame, and the third lifting assembly driving the rotating assembly to lift and lower.

7. The stacking and transfer system according to claim 6, characterized in that, The third lifting component moves the second fork downwards, positioning it below the stack supported by the support strip in the linear transfer bracket; the rotating component rotates the second fork, aligning it with the fork slot in the linear transfer bracket; the translation component moves the second fork horizontally into the fork slot. The third lifting component drives the second fork in the fork slot to move upward, so that the second fork carries the stack above the fork slot, and the rotating component drives the second fork to rotate to change the direction of the stack placement.

8. The stacking and transfer system according to claim 1, characterized in that, The material preparation platform includes multiple parallel support bars and support plates. The support bars are located on the support plates. The width between adjacent support bars is equal to the width between support bars in the linear transfer bracket. The support bars are used to support stacking. The interval between adjacent support bars is used to accommodate the first fork bar in the linear transfer bracket.

9. The stacking and transfer system according to claim 8, characterized in that, The support bar includes multiple support units, and the support units in a single support bar are arranged sequentially. The support units are detachably connected to the support plate.

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