Lifter and plate transfer system with high space utilization rate

Abstract

The invention relates to a lifter and a plate transfer system with high space utilization rate, the plate transfer system comprises a feeding area, a transfer area and a storage area, the transfer area comprises the lifter and a ground track, and the lifter comprises a frame body; the stopping unit is fixed to the lower portion of the frame body and is in butt joint with the incoming material area plates; the feeding unit comprises two groups of first transmission modules which are oppositely arranged, and the two groups of first transmission modules are respectively positioned on the frame body on two sides of the stopping unit; the material pushing unit is arranged in the length direction of the frame body, is connected between the two groups of first transmission modules through a clamping module, can be locked at any height and comprises a material pushing frame, a second transmission module and a material pushing part; the material pushing frame comprises a cross beam arranged in the length direction of a frame body, and longitudinal beams are perpendicularly connected to the two ends of the cross beam. The second transmission module is arranged in the beam direction. The material pushing part is slidably connected below the second transmission module, and a pushing plate is arranged on the forward side and used for pushing out the plates. According to the transfer system, efficient conveying of the plates can be achieved, and the top space in a workshop is fully utilized.

Description

[0001] This application is a divisional application of the patent application entitled "A High Space Utilization Sheet Material Transfer System", application number 202410532862.2, and application date 2024.04.30. Technical Field

[0002] This invention relates to the field of sheet metal transfer equipment technology, specifically to a lifting platform and a sheet metal transfer system with high space utilization. Background Technology

[0003] When building panels are placed into the curing silo, they need to be lifted to a designated height. Existing lifting methods are mostly similar to forklifts, where the forks move up and down driven by chains or other transmission components to lift the panels to the specified height before placing them into the curing silo. For example, patent number CN202122439266.4, entitled "A Rail Stacker for a Concrete Curing Chamber," provides such a lifting method.

[0004] However, with this type of lifting method, a reinforced structure is installed on the upper part of the fork arm, and a safety space is reserved at the top of the elevator. This results in the top of the elevator being higher than the curing silo when lifting the uppermost material, thus causing low utilization of the workshop's top space.

[0005] Furthermore, while the up-and-down lifting mechanism of the forklift is efficient for lower-level operations, the back-and-forth movement takes a considerable amount of time when lifting materials to higher levels, significantly impacting work efficiency. Therefore, manufacturers using this method to transfer sheet materials typically avoid making the curing silo too high to prevent affecting the feeding speed.

[0006] In addition, the height of the elevator also increases after the maintenance warehouse is built higher, making it more prone to tipping over. This is also an issue that needs to be considered when designing a board transfer system with high space utilization. Summary of the Invention

[0007] To address the technical problems existing in the background art, the present invention provides an elevator and a high-space-utilization plate transfer system.

[0008] The technical solution of this invention is as follows: A high-space-utilization sheet material transfer system includes an incoming material area, a transfer area, and a storage area. The transfer area includes a lift and a ground track. The lift can move along the ground track on one side of the storage area. The lift includes: The frame structure, with its bottom connected to a ground track via pulleys; The material stopping unit is fixed at the bottom of the frame and arranged along the length of the frame. It connects to the material receiving area and its width is smaller than the width of the material. The feeding unit includes two sets of first transmission modules arranged opposite each other, located on the frame on both sides of the stopping unit, which can transport the board placed on the stopping unit upwards; The pushing unit is arranged along the length of the frame and is connected between two sets of first transmission modules through a locking module. It can be locked at any height and includes a pushing frame, a second transmission module and a pushing component. The pusher frame includes crossbeams arranged along the length of the frame, with longitudinal beams vertically connected to both ends of the crossbeams; The second transmission module is arranged along the direction of the crossbeam; The pusher component is slidably connected below the second transmission module, and a push plate is provided on the front side for pushing out the material.

[0009] When the sheet material is transferred, it first enters the stopping unit from the receiving area. After reaching the designated position, the first transmission module of the loading unit operates in one direction, continuously transporting the sheet material upward to the designated height. At the same time, the pushing unit is locked at the designated height under the action of the clamping module. Then the pushing action is repeated to push the sheet material to the storage area until the layer of sheet material is full. Then the position is changed and locked, and the pushing action is repeated.

[0010] In this invention, the pushing unit is locked separately on the frame above the material to be transferred. Through the coordinated action of the pushing unit and the loading unit, efficient material transfer can be achieved. The height of the elevator can be the same as the height of the storage area, making full use of the top space in the workshop. The height of the elevator and the storage area can be made as high as possible.

[0011] Specifically, the material stop unit includes: The lower support is fixedly connected to the bottom of the frame. The belt drive unit is arranged on the lower support, perpendicular to the direction of the ground track, and horizontally. Side supports are arranged on the lower brackets on both sides of the belt drive section, and their height is lower than the height of the belt. A baffle, located in front of the side support, is used to limit the position of the conveyed sheet material.

[0012] After the sheet material enters the stopping unit inside the frame from the receiving area, it moves forward under the pull of the belt. However, the belt is soft, and the front will sag slightly during the movement. The side support design can support the front of the sheet material, allowing it to reach the baffle position smoothly.

[0013] Each first transmission module includes two vertically arranged chain drive units, which are arranged one in front of the other on the same side of the stopping unit, with the plane of rotation direction parallel to the ground track. Several extended parts are connected to the outer ring chain of the two chain drive sections, and a support is connected between the front and rear extended parts.

[0014] The upward movement of the two support members on both sides of the stopping unit can carry the plate placed on the upper surface of the stopping unit upward.

[0015] The support is arranged horizontally, with sliding wheels at at least at both ends, and the sliding wheels are located on the upper surface of the support when the inner support moves from bottom to top.

[0016] When the support member drives the plate to the designated level, it stops briefly, the pusher pushes the plate, and the plate is pushed out on the sliding wheel. Then, the support member continues to move upward to the top of the first transmission module, and then changes to the outside and moves downward.

[0017] The pusher includes two crossbeams and two longitudinal beams. The distance between the two longitudinal beams matches the length of the frame. The positioning module is connected to both sides of the longitudinal beams. The length of the crossbeams is not less than the sum of the length of the frame and the length of the pusher, so that the pusher can be placed under the crossbeams on the outside of the frame. It can also push plates with a length equal to the length of the frame.

[0018] The frame can adopt a common rectangular structure, mainly composed of four uprights and connectors, which is convenient to manufacture. Several inclined side tie rods are set on both sides to prevent the panels from falling from the sides. Several front tie rods are set on the front side and several rear tie rods are set on the rear side, mainly to connect the four uprights. The front tie rods avoid the height of each layer in the storage area, and the rear tie rods are U-shaped frames connected to the rear of the frame, which can accommodate the crossbeams passing through them to avoid interference with the vertical movement of the pushing unit.

[0019] The positioning modules are located at both ends of each longitudinal beam, and consist of four sets, each set including: The first limiting module includes a drive shaft arranged parallel to the longitudinal beam. The drive shaft is mounted on the upper part of the longitudinal beam through a bearing seat and is driven to rotate by a power unit. A gear is connected to the outward end. A rack arranged vertically is fixed on the frame connected to the inner side of the first transmission module. The teeth of the rack at the front and rear ends of the frame are arranged opposite each other, and the gear and the rack are meshed and connected. The second limiting module includes a first roller connected to the lower end of the longitudinal beam, with its axis along the length of the frame, and the first roller making rolling contact with the side of the rack. The locking module includes a telescopic cylinder connected to the side of the longitudinal beam. The back of the rack has vertically arranged insertion strips with several insertion holes, and the protruding part of the telescopic cylinder can be inserted into the insertion holes.

[0020] The first limiting module restricts the forward and backward movement of the pushing unit, and the second limiting module restricts the left and right movement of the pushing unit, thereby ensuring that the pushing unit moves stably up and down within the frame.

[0021] The first limiting module's motor locking gear provides a first-level locking function, while the locking module's mechanical locking provides a second-level locking function. This ensures that the pushing unit will not fall during operation.

[0022] An upper anti-tilt unit is installed between the elevator and the storage area, including: The upper track is connected to the upper part of the storage area on the side facing the elevator, parallel to the ground track; The L-shaped connecting seat is connected to the front of the elevator at the same height as the upper rail. The front and rear ends of the horizontal section are respectively connected to the second rollers. The two second rollers are clamped on both sides of the upper rail, and the axis is along the vertical direction. The horizontal section has a third roller connected between the two second rollers, allowing it to roll above or below the upper track.

[0023] A lower anti-tilting unit is installed between the frame and the ground track, including: The card plate is set outside the pulley at the bottom of the frame. Its upper end is connected to the bottom of the frame, and its lower end is provided with a card interface to engage with the ground rail. The opening size of the card interface is smaller than the internal size.

[0024] An auxiliary fixing unit is installed between the bottom of the frame and the ground, including: The bottom support is fixed inside the ground track; The clamping module is installed at the bottom of the frame. The clamping module includes movable jaws that can clamp the bottom support.

[0025] The design of the upper anti-tilt unit, lower anti-tilt unit, and auxiliary fixing unit effectively prevents the frame from tipping over in the front-back and left-right directions during its movement on the ground track. Furthermore, it effectively prevents swaying caused by the pushing unit's continuous forward and backward movement when the frame reaches the working position.

[0026] Through the above design, the space-efficient board transfer system of the present invention has an innovative design of a pushing unit that can move to different heights to achieve the effect of rapid material discharge. Through the coordinated action of the pushing unit and the loading unit, efficient board transfer can be achieved. The height of the elevator can be the same as the height of the storage area, and the top space in the workshop is fully utilized. The height of the elevator and the storage area can be made as high as possible. The design of the upper anti-tilt unit, lower anti-tilt unit, and auxiliary fixing unit effectively prevents the frame from tipping over in the front-back and left-right directions during its movement on the ground track. Furthermore, it effectively prevents swaying caused by the pushing unit's continuous forward and backward movement when the frame reaches the working position. Attached Figure Description

[0027] In the attached diagram: Figure 1 This is a diagram showing the operational status of the sheet metal transfer system. Figure 2 A 3D view of the transit area; Figure 3 This is a schematic diagram of the feeding unit. Figure 4 for Figure 2 A magnified view of the Y-position in the middle; Figure 5 This is a 3D view of the stop unit; Figure 6 This is a bottom view of the upper part of the elevator; Figure 7 This is a top view of the upper part of the elevator; Figure 8 For the three-dimensional pusher unit Figure 1 ; Figure 9 For the three-dimensional pusher unit Figure 2 ; Figure 10 This is a magnified view of the location of the pusher part; Figure 11 for Figure 8 A magnified view of the Z-position in the middle; Figure 12 for Figure 6 A magnified view of the area at position W in the middle; Figure 13 for Figure 7 A magnified view of the middle V position; Figure 14 This is a top view of the feeding unit; Figure 15 This is a side view of the feeding unit; Figure 16 for Figure 15 A magnified view of the area at position R in the middle; Figure 17 for Figure 7 A magnified view of the U-shaped area in the middle; Figure 18 This is a top view of the lower half of the elevator. Figure 19 for Figure 18 A magnified view of the T-position; Figure 20 This is a bottom view of the elevator. Figure 21 To assist in the three-dimensional fixation of the unit Figure 1 ; Figure 22 To assist in the three-dimensional fixation of the unit Figure 2 ; The components represented by the various reference numerals in the diagram are: 1. Stopping unit; 11. Lower support; 12. Belt drive unit; 13. Side support; 14. Baffle; 2. Loading unit; 21. First transmission module; 22. Extension part; 23. Support part; 24. Power distribution module; 3. Pushing unit; 31. Pushing frame; 311. Crossbeam; 312. Longitudinal beam; 313. Reinforcing beam; 314. Slide rail; 32. Second transmission module; 321. Rectangular tube; 322. Support plate; 323. Long pin; 324. Bolt; 33. Pushing part; 331. Snap-fit ​​seat; 332. Push plate; 34. First limit module; 341. Transmission... 342. Drive shaft; 343. Gear; 344. Bearing housing; 345. Rack; 36. Second limit module; 37. First roller; 38. Locking module; 39. Telescopic cylinder; 30. Connecting strip; 40. Upper anti-tilt unit; 41. Upper rail; 42. Connecting seat; 43. Second roller; 44. Third roller; 5. Lower anti-tilt unit; 51. Clamping plate; 6. Auxiliary fixing unit; 62. Mounting seat; 63. First gripper; 64. Second gripper; 75. Bottom support; 76. Frame; 77. Side tie rod; 78. Front tie rod; 79. Rear tie rod; 8. Ground rail; 9. Maintenance chamber. Detailed Implementation

[0028] See Figure 1 A high-space-utilization board transfer system includes an incoming material area, a transfer area, and a storage area.

[0029] The storage area consists of several curing chambers, fixed together in pairs with maintenance space between them. Each curing chamber is multi-level, allowing for the storage of more boards. Each level is equipped with a transmission component, allowing the cured boards to be transported out from the other side.

[0030] The material receiving area includes several conveyor belts distributed in different locations to correspond to multiple curing warehouses.

[0031] The transfer area includes a lift and a ground track 8. The lift can move along the ground track 8 on one side of the storage area to raise and lower the plates conveyed from the incoming material area to a designated height, and then convey them to the corresponding layer of the curing warehouse. The ground track 8 is arranged perpendicular to the material conveying direction of the incoming material area and the storage area.

[0032] See Figure 2 The elevator includes: The frame 7 is connected to the ground track 8 at its bottom via pulleys; The material stopping unit 1 is fixed at the lower part of the frame 7 and arranged along the length of the frame 7. It connects to the material receiving area and its width is smaller than the width of the material. The feeding unit 2 includes two sets of first transmission modules 21 arranged opposite to each other, located on the frame 7 on both sides of the stopping unit 1, which can transport the board placed on the stopping unit 1 upward. The pushing unit 3 is arranged along the length of the frame 7, and is connected between the two sets of first transmission modules 21 through the locking module. It can be locked at any height and includes a pushing frame 31, a second transmission module 32 and a pushing component 33. The pusher frame 31 includes a crossbeam 311 arranged along the length of the frame 7, and longitudinal beams 312 are vertically connected to both ends of the crossbeam 311. The second transmission module 32 is arranged along the direction of the crossbeam 311; The pusher 33 is slidably connected below the second transmission module 32, and a pusher plate 332 is provided on the front side for pushing out the material.

[0033] When the sheet material is transferred, it first enters the stopping unit 1 from the receiving area. After reaching the designated position, the first transmission module 21 of the loading unit 2 operates in one direction, continuously transporting the sheet material upward to the designated height. At the same time, the pushing unit 3 is locked at the designated height under the action of the clamping module. Then the pushing action is repeated to push the sheet material to the storage area until the layer of sheet material is full. Then the position is changed and locked, and the pushing action is repeated.

[0034] In this invention, the pushing unit 3 is locked separately on the frame 7 above the material to be transferred. Through the coordinated action of the pushing unit 3 and the loading unit 2, efficient material transfer can be achieved. The height of the elevator can be the same as the height of the storage area, making full use of the top space in the workshop. The height of the elevator and the storage area can be made as high as possible.

[0035] In this embodiment, the frame 7 can adopt a common rectangular structure, mainly composed of four columns and connectors, which is convenient to manufacture. Several inclined side tie rods 71 ​​are provided on both sides to prevent the panels from falling from the sides. Several front tie rods 72 are provided on the front side and several rear tie rods 73 are provided on the rear side, mainly to connect the four columns. The front tie rods 72 avoid the height of each layer in the storage area. The rear tie rods 73 are U-shaped frames, connected to the rear side of the frame 7, with the opening facing the storage area, and can accommodate the crossbeam 311 passing through it to avoid interference with the vertical movement of the pushing unit 3.

[0036] For details, see the structure of the material stop unit 1. Figure 5 As shown, it includes: The lower support 11 is fixedly connected to the bottom of the frame 7 and moves together with the frame 7; The belt drive unit 12 is arranged on the lower support 11 in a direction perpendicular to the ground track 8, and is arranged horizontally. The side supports 13 include two, which are arranged in parallel on the lower brackets 11 on both sides of the belt drive section 12. Their height is lower than the height of the belt, and the height difference between the two is no more than 10mm.

[0037] Baffle 14, arranged above the front of the two side supports 13, is L-shaped and perpendicular to the belt conveying direction, and is used to limit the conveying position of the plate.

[0038] After the sheet material enters the stopping unit 1 inside the frame 7 from the receiving area, it moves forward under the pull of a belt. However, the belt is flexible, and the front part will sag slightly during the movement. The side support 13 is designed to support the front of the sheet material, allowing it to smoothly reach the baffle 14 position. In addition, each sheet material enters the frame 7 at the same position, which facilitates the return operation of the pushing unit 3.

[0039] The following is combined Figure 3 , Figure 4 and Figure 6 Each first transmission module 21 includes two vertically arranged chain drive units, which are arranged one in front of the other on the frame column on the same side of the stopping unit 1, with the plane of rotation parallel to the ground track 8. Several U-shaped guide plates are also provided on the column, with the chain located inside them to ensure the stability of the vertical transmission of the chain.

[0040] Several extended parts 22 are connected at equal intervals on the outer ring chain of the two chain drive parts. One end of the extended part 22 is connected to the chain, and the other end extends outward perpendicular to the chain. A support part 23 is connected between the front and rear extended parts 22.

[0041] The upward movement of the two support members 23 on both sides of the stopping unit 1 can carry the plate placed on the upper surface of the stopping unit 1 upward.

[0042] In a preferred embodiment, the support member 23 is arranged horizontally, and a sliding wheel is provided on one side at both ends. Specifically, when the support member 23 located inside the chain moves from bottom to top, the sliding wheel is located on the upper surface of the support member 23.

[0043] When the support member 23 drives the plate to the designated level, it pauses briefly, and the pusher 33 pushes the plate out on the sliding wheel. Then, the support member 23 continues to move upward to the top of the first transmission module 21, and then moves downward to the outside. In this way, the feeding unit can rotate continuously in one direction to feed the plate, which greatly improves efficiency compared to the traditional feeding fork arm reciprocating up and down.

[0044] See Figure 7 The power unit of the first transmission module is located on the top of the frame 7 and is designed with a power distribution module 24. The kinetic energy output by the power unit is transmitted to the four rotating shafts through gear transmission and two chain transmission parts, and then drives the chain transmission parts arranged vertically on the four columns of the frame 7 to rotate.

[0045] See Figures 6-9The pusher frame 31 includes two crossbeams 311 and two longitudinal beams 312. The distance between the two longitudinal beams 312 matches the length of the frame 7. One of the longitudinal beams 312 is fixed to the front end of the crossbeam 311 and is flush with the front side of the frame 7. The positioning module is connected to both sides of the longitudinal beam 312. The length of the crossbeam 311 is not less than the sum of the length of the frame 7 and the length of the pusher 33, so that the pusher 33 can be arranged under the crossbeam 311 on the outside of the frame 7, and can also push plates with a length equal to the length of the frame 7.

[0046] Multiple reinforcing beams 313 are connected between the two longitudinal beams 212.

[0047] The second transmission module 32 includes two chain transmission assemblies connected between two crossbeams 311, which are driven to rotate by a motor fixed on the crossbeams 311 through a sprocket drive.

[0048] See Figure 9 and Figure 10 Slide rails 314 are provided at the bottom of both crossbeams 311. The pusher 33 includes a locking seat 331 and a push plate 332. The locking seat 331 is slidably connected to the slide rail 314, and the L-shaped push plate 332 is connected to it through a connecting frame. The front side of the push plate 332 is a vertical section, which is arranged along the width direction of the frame 7. Its width is smaller than the width between the two support members 23 in the feeding unit 2, and it is used to push the plate outward.

[0049] The connecting frame has a certain strength to prevent the push plate 332 from deforming, and weight-reducing holes are opened inside to reduce its own weight.

[0050] This application innovatively designs a vertically movable pushing unit 3 and a forward-backward moving pushing component 33 arranged on the pushing frame 31, to efficiently complete the feeding operation without occupying additional workspace. To ensure the stable operation of the second transmission module 32 and prevent the chain from sagging and increasing the additional workspace, this invention also specifically designs a drag chain mechanism.

[0051] See the appendix for details. Figure 14-16 On the chain of the second transmission module 32, a set of long pin groups is designed at predetermined intervals. Each set of long pin groups includes 2-5 long pins 323. The length of the long pins 323 is greater than the width of the chain, and both ends extend out of the chain.

[0052] A rectangular tube 321 and a support plate 322 are sequentially arranged below the reinforcing beam 313. Bolts 324 are used to pass through the support plate 322 and the rectangular tube 321 from bottom to top, fixing them to the underside of the reinforcing beam 313. The support plate 322 extends towards the long pin 323 and extends below the long pin 323, without contacting the chain.

[0053] In this way, it can be ensured that the lower chain of the second transmission module 32 remains horizontal during high-speed operation and will not sag and interfere with the plate. As a result, the space occupied by the pushing unit 3 can be greatly reduced, so that the frame 7 can be the same height as the curing chamber. The curing chamber can be increased to as many layers as possible, effectively utilizing the workshop space.

[0054] The following is combined Figure 11-13 Let me introduce the positioning module. The positioning module is located at both ends of each longitudinal beam 312, and consists of four sets, each set including: The first limiting module 34 includes a drive shaft 341 arranged parallel to the longitudinal beam 312. The drive shaft 341 is mounted above the longitudinal beam 312 through a bearing seat 343 and is driven to rotate by a power unit. To simplify the structure of the pushing unit 3, a motor and multiple gear commutators are used to synchronously transmit kinetic energy to the four drive shafts 341.

[0055] The transmission shaft 341 is connected to the gear 342 at the outward end. The frame 7 connected to the inner side of the first transmission module 21 is fixed with a vertically arranged rack 344. The teeth of the rack 344 at the front and rear ends of the frame 7 are arranged opposite to each other. The gear 342 and the rack 344 are meshed and connected. The second limiting module 35 includes a first roller 351, which is connected to the lower end of the longitudinal beam 312. Its axis is along the length of the frame 7. The first roller 351 rolls in contact with the inner side of the rack 344. The locking module 36 includes a telescopic cylinder 361 connected to the front or rear side of the longitudinal beam 312. The back of the rack 344 is provided with a vertically arranged insertion strip 362 with several insertion holes, and the protruding part of the telescopic cylinder 361 can be inserted into the insertion holes.

[0056] As a preferred embodiment, the side of the rack 344 is coplanar with the front of the connector 362, and the first roller 351 simultaneously rolls in contact with both the side of the rack 344 and the front of the connector 362 to increase the contact area and improve the limiting capability. See also Figure 12 As shown.

[0057] The first limiting module 34 restricts the forward and backward movement of the pushing unit 3, and the second limiting module 35 restricts the left and right movement of the pushing unit 3, thereby ensuring that the pushing unit 3 moves stably up and down within the frame 7.

[0058] The first locking function is provided by the motor locking gear 342 of the first limiting module 34, and the second locking function is provided by the mechanical locking of the locking module 36. This ensures that the pushing unit 3 will not fall during operation.

[0059] Compared to existing technologies, this invention allows the curing silo to be as close as possible to the workshop height, thus effectively utilizing workshop space. Correspondingly, the elevator height will also be very high. To ensure the stability of the pushing unit 3 when operating at high heights, this invention also includes a matching anti-tilting unit to guarantee the safety of the elevator operation. Details are as follows: See Figure 7 and Figure 17 An upper anti-tilting unit 4 is installed between the elevator and the maintenance bay. This area is where the deformation is greatest when the frame 7 tilts, and therefore requires special attention. Specifically, it includes: The upper track 41 is connected to the upper part of the maintenance warehouse on the side facing the elevator, parallel to the ground track 8.

[0060] The L-shaped connecting seat 42 is connected to the front of the elevator at the same height as the upper rail 41, and is also connected to reinforcing plates on both sides. The front and rear ends of the horizontal section of the L-shaped connecting seat 42 are respectively connected to the second rollers 43, and the two second rollers 43 are clamped on both sides of the upper rail 41 with their axes along the vertical direction. The upper rail 41 can be made of square tubing to facilitate the rolling of the second roller 43 along its side. During assembly, a gap is left between the second roller 43 and the upper rail 41 to ensure that the frame 7 can slide normally on the ground rail 8, allowing it to roll over even if the upper rail 41 is uneven. When the frame 7 tends to tilt in the front-to-back direction, the second roller 43 at the front or rear end will overcome the gap and contact the upper rail 41, thereby suppressing the tilt of the frame 7, achieving two benefits at once.

[0061] The horizontal section has a third roller 44 connected between the two second rollers 43, which can roll above or below the upper track 41. Figure 17 The layout shown above is the style.

[0062] The third roller 44 also has a gap with the upper rail 41 so as not to affect the normal sliding of the frame 7 on the ground rail 8. When the frame 7 tends to tilt in the left or right direction, the third roller 44 will abut against the upper rail 41 to prevent the frame 7 from tilting further.

[0063] To ensure the anti-tilting effect, two upper anti-tilting units 4 are provided, located on the outermost side of the upper front face of the frame 7, with the vertical projection of the connecting seat 42 located outside the pulley relative to the bottom pulley position of the frame 7.

[0064] See Figure 18 and Figure 19 A lower anti-tilting unit 5 is installed between the frame 7 and the ground track 8, including: The card plate 51 is set outside the bottom pulley of the frame 7. Its upper end is connected to the bottom of the frame 7, and its lower end is provided with a card interface to engage with the ground rail 8. The opening size of the card interface is smaller than the internal size.

[0065] As one implementation method, the ground track 8 adopts an I-shaped track, and the lower end of the clamping plate 51 is clamped in the middle of the ground track 8. The clamping interface and the ground track 8 are in clearance fit. Normally, it does not affect the normal sliding of the frame 7. When a tilting tendency occurs, it can be clamped on the side of the ground track 8 or on the upper surface of the ground track, which can suppress the tendency to tip over in the front-back direction and the left-right direction.

[0066] In addition, the pallet 51 can also push away obstacles on the ground track 8 during the sliding process, ensuring the stable operation of the frame 7 and preventing it from tilting due to the pulley hitting the bolt or other obstacles.

[0067] See Figure 20-22 An auxiliary fixing unit 6 is provided between the bottom of the frame 7 and the ground, including: The bottom support 64 is fixed inside the ground track 8, and multiple supports are designed according to different feeding stations.

[0068] The clamping module is installed at the bottom of the frame 7. The clamping module includes a mounting base 61 and a movable clamping jaw. The clamping jaw can clamp the bottom support 64.

[0069] The upper end of the bottom support 61 is fixed to the bottom of the frame 7. The grippers are divided into a first gripper 62 and a second gripper 63, both of which are arranged in an L-shape opposite each other. The first gripper 62 has a sliding groove at its head and a clamping plate at its tail. The second gripper 63 has a sliding shaft at its head and a clamping plate at its tail. The first gripper 62 and the second gripper 63 are rotatably connected to the lower part of the bottom support 61 at their turning points. A telescopic cylinder is connected to the rear of the second gripper 63. The rear of the telescopic cylinder is connected to the bottom of the frame 7. The telescopic cylinder is coplanar with the two grippers and is set parallel to the ground track 8.

[0070] The telescopic cylinder's movement causes the two grippers to extend or retract. In the extended state, the bottom of the grippers is higher than the base support 64 to prevent interference between the frame 7 and the base support 64 when sliding. In the retracted state, the gripping plates of the two grippers clamp onto both sides of the base support 64. Thus, after the frame 7 reaches the predetermined work position, the grippers clamp the base support 64, preventing the frame 7 from tilting due to inertia when braking, and also preventing the frame 7 from shaking during material conveying caused by the operation of the pushing unit 3.

[0071] The design of the upper anti-tilt unit 4, the lower anti-tilt unit 5, and the auxiliary fixing unit 6 effectively prevents the frame 7 from tipping over in the front-back and left-right directions during its movement on the ground track 8. Furthermore, when the pushing unit 3 moves back and forth continuously upon reaching the working position, the design effectively prevents the shaking caused by the pushing unit 3's movement.

Claims

1. A lifting platform for transferring sheet metal, comprising a frame, a stopping unit, a loading unit, and a pushing unit, wherein the bottom of the frame is connected to a ground track via pulleys, characterized in that, An auxiliary fixing unit is provided between the bottom of the frame and the ground.

2. The elevator according to claim 1, characterized in that, The auxiliary fixing unit includes: The bottom support is fixed inside the ground track; A clamping module, installed at the bottom of the frame, includes movable grippers that can clamp the bottom support.

3. The elevator according to claim 1, characterized in that, The stopping unit is fixed at the lower part of the frame and arranged along the length of the frame; the feeding unit includes two sets of first transmission modules arranged opposite each other, located on the frame on both sides of the stopping unit, which can transport the board placed on the stopping unit upward; the pushing unit is arranged along the length of the frame, connected between the two sets of first transmission modules through a locking module, and can be locked at any height.

4. The elevator according to claim 3, characterized in that, The pushing unit includes a pushing frame, a second transmission module, and a pushing component; the pushing frame includes a crossbeam arranged along the length of the frame, with longitudinal beams vertically connected to both ends of the crossbeam; the second transmission module is arranged along the crossbeam. The pusher is slidably connected below the second transmission module, and a pusher plate is provided on the front side for pushing out the material.

5. The elevator according to claim 3, characterized in that, The material stopping unit includes: The lower support is fixedly connected to the bottom of the frame. The belt drive unit is arranged on the lower support, perpendicular to the direction of the ground track, and horizontally. Side supports are arranged on the lower brackets on both sides of the belt drive section, and their height is lower than the height of the belt. A baffle, located in front of the side support, is used to limit the position of the conveyed sheet material.

6. The elevator according to claim 3, characterized in that, The pushing unit includes two crossbeams and two longitudinal beams. The distance between the two longitudinal beams matches the length of the frame. The positioning module is connected to both sides of the longitudinal beams. The length of the crossbeams is not less than the sum of the length of the frame and the length of the pushing component.

7. The elevator according to claim 6, characterized in that, The positioning modules are located at both ends of each longitudinal beam, comprising four sets, each set including: The first limiting module includes a drive shaft arranged parallel to the longitudinal beam. The drive shaft is mounted on the upper part of the longitudinal beam through a bearing seat and is driven to rotate by a power unit. A gear is connected to the outward end. A rack arranged vertically is fixed on the frame connected to the inner side of the first transmission module. The teeth of the rack at the front and rear ends of the frame are arranged opposite each other, and the gear and the rack are meshed and connected. The second limiting module includes a first roller connected to the lower end of the longitudinal beam, with its axis along the length of the frame, and the first roller making rolling contact with the side of the rack. The locking module includes a telescopic cylinder connected to the side of the longitudinal beam. The back of the rack has vertically arranged insertion strips with several insertion holes, and the protruding part of the telescopic cylinder can be inserted into the insertion holes.

8. A high-space-utilization sheet material transfer system, comprising an incoming material area, a transfer area, and a storage area, wherein the transfer area includes a lift and a ground track, and the lift is capable of moving along the ground track on one side of the storage area.

9. The sheet metal transfer system according to claim 8, characterized in that, An upper anti-tipping unit is installed between the elevator and the storage area.

10. The sheet metal transfer system according to claim 8 or 9, characterized in that, A lower anti-tilting unit is installed between the frame of the elevator and the ground track.

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