Lifting device for stacking and stacking production line

Abstract

The utility model relates to the technical field of workpiece stacking, and discloses a lifting device for stacking and a stacking production line, the device comprises a trolley, a trolley guide rail, a lifting assembly and a cache material fork, the trolley is arranged on the trolley guide rail and can move to a lifting position along the trolley guide rail, the lifting assembly is arranged at the lifting position, and the cache material fork is arranged on the trolley guide rail. The lifting assembly lifts the trolley located at the lifting position to a preset height; when the trolley bears material sheets, the height of the lifting assembly is reduced according to the quantity of the material sheets borne by the trolley; the temporary storage material fork is arranged above the lifting assembly and used for bearing the material pieces and transferring the material pieces to the trolley. According to the scheme, the trolley is lifted through the lifting assembly, the positions of the trolley and the feeding position are reduced, the heights of workpiece material pieces borne by the trolley are gradually reduced along with the number of the material pieces, stacking of the material pieces is achieved, the trolley transfers the stacked workpieces along the trolley guide rail after stacking is completed, and in the process that the trolley transfers the stacked workpieces, the cache material fork can be used for temporary stacking of the material pieces; and the continuity of stacking work is kept.

Description

Technical Field

[0001] This utility model relates to the field of workpiece stacking technology, and in particular to a lifting device and a stacking production line for stacking. Background Technology

[0002] Stacking equipment is a type of machinery used in industrial and logistics fields, primarily for the automated stacking, picking, transfer, or storage management of goods. It is widely used in modern warehousing and production lines to improve space utilization, reduce labor costs, and increase operational efficiency. In the sheet metal processing industry, stacking equipment is typically installed after stamping equipment, laser cutting equipment, and other processing equipment to stack processed sheet metal workpieces. How to stack and transfer processed sheet metal workpieces is one of the key research focuses in this field.

[0003] Chinese patent CN201721857822.7 discloses an automatic stacking system, which includes a channel steel, an upper platform, a lifting mechanism, left and right feeding mechanisms, and front and rear feeding mechanisms. The upper platform and the channel steel are connected as one unit by the lifting mechanism. Fixed frames are provided on both sides of the upper platform. A fixed crossbeam is connected to the left end of the fixed frame, and a material-blocking rail is provided at the right end of the fixed frame. A movable crossbeam is slidably connected to the material-blocking rail. Front and rear baffles are provided at the rear ends of both the fixed and movable crossbeams, and front and rear feeding mechanisms are provided at the front ends of both the fixed and movable crossbeams. Left and right feeding mechanisms are provided in the middle of the fixed crossbeam, and left and right baffles are provided in the middle of the movable crossbeam. This utility model has a simple, compact, and reasonable structure, operates stably and reliably, and is easy to operate. It can automatically feed materials left and right and front and rear, making the stacking of boards very neat. It automatically lifts and lowers as the stacking height increases, reducing the workload of operators and improving production efficiency. This solution needs further improvement.

[0004] This invention overcomes the shortcomings of the prior art by providing a lifting device and a stacking production line for stacking, which can achieve continuous stacking. Utility Model Content

[0005] The main purpose of this utility model is to provide a lifting device for stacking, including a trolley, a trolley guide rail, a lifting component and a buffer fork. The trolley is located on the trolley guide rail and can move along the trolley guide rail to a lifting position. The lifting position is provided with the lifting component, which lifts the trolley located at the lifting position to a predetermined height. The trolley is used to carry the material sheet.

[0006] When the trolley carries the material sheet, the lifting assembly lowers its height according to the amount of material sheet carried by the trolley;

[0007] The buffer fork is located above the lifting assembly and is used to carry the sheet and transfer the sheet to the trolley.

[0008] Optionally, the lifting assembly includes a first frame, a lifting cylinder, a lifting guide column, and a material support platform;

[0009] The lifting cylinder and the lifting guide column are mounted on the first frame, and the movable end of the lifting cylinder and the movable end of the lifting guide column are respectively connected to the material support platform;

[0010] The material support platform is equipped with a positioning pin, and the material support platform is used to support the trolley, and the positioning pin is used to position the trolley.

[0011] Optionally, the lifting assembly further includes a trolley pedal, with the trolley pedals provided on both sides of the first frame, and the upper plane of the trolley pedals being at the same level as the upper plane of the material support platform when it is in the lower limit position.

[0012] Optionally, the lifting assembly further includes a lower limit switch, which is disposed on the first frame and located below the material support platform. The lower limit switch is used to detect the lower limit position of the material support platform's movement.

[0013] Optionally, there may be multiple lifting guide columns, arranged symmetrically around the lifting cylinder.

[0014] Optionally, the first movable end of the lifting guide column is connected to the material support platform, and the tail movable ends of adjacent lifting guide columns are connected by a lifting guide connector.

[0015] Optionally, the buffer fork includes a second frame, the second frame being provided with a movable frame, a first motor, a first guide rail and a synchronous belt, and the movable frame being provided with a receiving fork bracket;

[0016] The first motor is connected to the synchronous belt drive, the synchronous belt is fixedly connected to the movable frame, the movable frame is slidably connected to the first guide rail, the first guide rail is arranged parallel to the first direction, and the receiving fork can move along the first direction and extend directly above the lifting assembly.

[0017] Optionally, the movable frame is provided with a second guide rail, a second motor and a lead screw. The second motor is drivenly connected to the lead screw, the lead screw is hinged to the movable frame and drivenly connected to the receiving fork. The second guide rail is arranged parallel to a second direction, which is perpendicular to the first direction. The lead screw is arranged parallel to the second guide rail, and the receiving fork is slidably connected to the second guide rail.

[0018] Optionally, the receiving fork frame includes multiple parallel fork units, which are slidably connected to the second guide rail and connected to the lead screw drive.

[0019] This utility model also provides a stacking production line, including the above-mentioned lifting device for stacking.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The lifting device provided by this utility model raises the trolley through the lifting component, thereby reducing the distance between the trolley and the feeding position. The height of the workpiece sheet carried by the trolley gradually decreases as the amount of sheet decreases, realizing the stacking of the sheet. After stacking, the trolley transfers the stacked workpiece along the trolley guide rail. During the process of transferring the stacked workpiece by the trolley, the buffer fork can be used for temporary stacking of the sheet to maintain the continuity of the stacking operation. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a schematic diagram of an embodiment of the lifting device of this utility model;

[0024] Figure 2 This is a top view of an embodiment of the lifting device of this utility model;

[0025] Figure 3 This is a schematic diagram of the lifting component in an embodiment of the lifting device of this utility model;

[0026] Figure 4 This is a side view of the lifting component in an embodiment of the lifting device of this utility model;

[0027] Figure 5 This is a schematic diagram of the trolley used in an embodiment of the lifting device of this utility model;

[0028] Figure 6 This is a rear view of the trolley in an embodiment of the lifting device of this utility model;

[0029] Figure 7 This is a schematic diagram of the receiving fork frame in an embodiment of the lifting device of this utility model;

[0030] Figure 8 This is a schematic diagram of an embodiment of the stacking production line of this utility model;

[0031] Figure 9 This is a side view of an embodiment of the stacking production line of this utility model.

[0032] Figure label:

[0033] 100-Support frame; 110-Trolley; 111-Support block; 112-Positioning hole; 113-Drive motor; 114-Transmission rod; 115-Driving wheel; 116-Driven wheel; 120-Trolley guide rail; 130-Lifting assembly; 131-First frame; 132-Lifting cylinder; 133-Lifting guide column; 134-Material support platform; 1341-Positioning pin; 135-Trolley pedal; 136-Lifting lower limit switch; 137-Lifting guide connector; 140-Buffer fork; 141-Second frame; 142-Moving frame; 1421-Second guide rail; 1422-Second motor; 1423-Screw; 143-First motor; 144-First guide rail; 145-Synchronous belt; 146-Receiving fork holder; 1461-Fork unit; 200-Slapping device; 300-Conveyor belt. Detailed Implementation

[0034] To facilitate understanding of this utility model, 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 being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, 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, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0035] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium, or as a connection within two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0036] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] like Figure 1-7 The diagram shown is a schematic representation of an embodiment of the lifting device provided by this utility model.

[0038] Please refer to Figure 1-7 This embodiment is used to realize the lifting and transfer of stacking. The stacking is formed by overlapping and stacking workpiece pieces. Therefore, a certain space needs to be reserved for the height of the stacking. At the same time, the workpiece cannot be too far away from the bearing surface when stacking, so as to avoid the workpiece shifting and flipping when it is dropped. Therefore, the bearing surface needs to be lifted and lowered. When stacking starts, it is close to the drop point of the workpiece, and the height of the bearing surface is gradually reduced as the stacking height of the workpiece increases.

[0039] This embodiment includes a trolley 110, a trolley guide rail 120, a lifting assembly 130, and a buffer fork 140. The trolley 110 is mounted on the trolley guide rail 120 and can move along the trolley guide rail 120 to a lifting position. The lifting position is equipped with the lifting assembly 130, which raises the trolley 110 at the lifting position to a predetermined height. The trolley 110 is used to carry sheet metal. When the trolley 110 is carrying sheet metal, the lifting assembly 130 lowers its height according to the amount of sheet metal carried by the trolley 110. The buffer fork 140 is located above the lifting assembly 130 and is used to carry sheet metal and transfer sheet metal to the trolley 110.

[0040] Specifically, a lifting assembly 130 is provided below the middle of the trolley guide rail 120. When the trolley 110 moves along the trolley guide rail 120 to the middle of the trolley guide rail 120, the trolley 110 is directly above the lifting assembly 130. The lifting assembly 130 lifts the trolley 110 upwards and moves it closer to the workpiece's unloading position. When the load capacity of the trolley 110 reaches a predetermined value or maximum, the trolley 110 moves along the trolley guide rail 120 to the beginning or end of the trolley guide rail 120, and the stacked workpieces are transferred from the trolley 110 by subsequent equipment (stacking and transfer device).

[0041] In one embodiment, the lifting assembly 130 includes a first frame 131, a lifting cylinder 132, a lifting guide column 133, and a material support platform 134. The lifting cylinder 132 and the lifting guide column 133 are disposed on the first frame 131, and the movable ends of the lifting cylinder 132 and the lifting guide column 133 are respectively connected to the material support platform 134. The material support platform 134 is provided with a positioning pin 1341, which is used to support the trolley 110, and the positioning pin 1341 is used to position the trolley 110.

[0042] The trolley 110 has multiple support blocks 111 on its support surface. These support blocks 111 are detachably connected to the trolley 110 and are spaced apart. These spaces intersect with the receiving fork 146 of the buffer fork 140, allowing the support blocks 111 to contact the workpiece carried by the receiving fork 146 and support and lift the workpiece. The trolley 110 has positioning holes 112, the distribution of which corresponds to the distribution of positioning pins 1341. The positioning holes 112 are used for the positioning pins 1341 to be inserted and positioned. When the trolley 110 moves to the lifting position, the lifting cylinder 132 drives the material support platform 134 upward, causing the positioning pins 1341 to insert into the positioning holes 112, preventing lateral displacement of the trolley 110 during lifting.

[0043] The trolley 110 is equipped with a drive motor 113, a transmission rod 114, a drive wheel 115, and a driven wheel 116. The drive wheel 115 is connected to the drive motor 113 via the transmission rod 114. The drive wheel 115 and the driven wheel 116 are respectively matched with the trolley guide rail 130. The trolley 110 is driven by the drive motor 113 to move along the trolley guide rail 130. There can be multiple trolleys 110.

[0044] In one embodiment, the lifting assembly 130 further includes a trolley pedal 135. Trolley pedals 135 are respectively provided on both sides of the first frame 131. The upper plane of the trolley pedal 135 is at the same level as the upper plane of the material support table 134 when it is in the lower limit position.

[0045] Specifically, there are two trolley pedals 135, which are located on both sides of the first frame 131 and below the trolley guide rail 120. The trolley pedals 135 are used to support the trolley 110 as it moves to the material support platform 134.

[0046] In one embodiment, the lifting assembly 130 further includes a lifting lower limit switch 136, which is disposed on the first frame 131 and located below the material support platform 134. The lifting lower limit switch 136 is used to detect the lower limit position of the material support platform 134 when it moves up and down.

[0047] In one embodiment, there are multiple lifting guide columns 133, arranged symmetrically around the lifting cylinder 132. In this embodiment, there are four lifting guide columns 133, distributed at the four corners, with the lifting cylinder 132 located at the center of the first frame 131.

[0048] Specifically, the movable end of the lifting guide column 133 is connected to the material support platform 134, and the movable ends of adjacent lifting guide columns 133 are connected by lifting guide connectors 137. The lifting guide connectors 137 keep multiple lifting guide columns 133 moving synchronously.

[0049] In one embodiment, the buffer fork 140 includes a second frame 141, which is provided with a movable frame 142, a first motor 143, a first guide rail 144, and a timing belt 145. The movable frame 142 is provided with a receiving fork 146. The first motor 143 is drivenly connected to the timing belt 145, the timing belt 145 is fixedly connected to the movable frame 142, and the movable frame 142 is slidably connected to the first guide rail 144. The first guide rail 144 is arranged parallel to a first direction. The receiving fork 146 can move along the first direction and extend directly above the lifting assembly 130. The receiving fork 146 is used for temporary support of the workpiece.

[0050] Furthermore, the movable frame 142 is equipped with a second guide rail 1421, a second motor 1422, and a lead screw 1423. The second motor 1422 is drivenly connected to the lead screw 1423, the lead screw 1423 is hinged to the movable frame 142, and the lead screw 1423 is drivenly connected to the receiving fork 146. The second guide rail 1421 is arranged parallel to a second direction, which is perpendicular to the first direction. The lead screw 1423 is arranged parallel to the second guide rail 1421, and the receiving fork 146 is slidably connected to the second guide rail 1421. By driving the receiving fork 146 to move along the second direction through the second motor 1422, the receiving position of the receiving fork 146 in the second direction can be adjusted according to the size of the workpiece and the dropping position.

[0051] The first direction mentioned above is specifically the x-direction, the second direction is specifically the y-direction, and the trolley guide rail 120 is set in the y-direction.

[0052] Specifically, the receiving fork frame 146 includes multiple parallel fork units 1461, which are slidably connected to the second guide rail 1421 and drively connected to the lead screw 1423. The multiple fork units 1461 expand the receiving width, while the fork units 1461 are spaced apart and staggered with the support blocks 111 of the trolley 110, with the gaps allowing the support blocks 111 to pass through.

[0053] like Figure 8-9 As shown, this utility model also provides an embodiment of a stacking production line.

[0054] Please refer to Figure 8-9This embodiment includes the aforementioned lifting device, as well as a support frame 100, a striking assembly 200, and a conveyor belt 300. The support frame 100 supports the striking device 200 and the buffer fork 140, located above the lifting assembly 130. The lifting assembly 130 is positioned at the lifting position below the striking device 200, and a trolley guide rail 120 is located below the striking device 200, covering the lifting position. The trolley 110 can move along the trolley guide rail 120. The conveyor belt 300 is arranged adjacent to the striking device 200 and is used to transport workpieces to the striking device 200 for striking, positioning, and centering.

[0055] The workpieces are conveyed to the tapping device 200 via the conveyor belt 300. During the process of the workpieces falling from the conveyor belt 300 onto the trolley 110, the tapping device 200 taps and centers the workpieces, making them stack neatly on the trolley 110. The lifting assembly 130 gradually lowers the height of the trolley 110 according to the amount or thickness of the workpieces stacked on the trolley 110 until the load capacity of the trolley 110 reaches a predetermined value or maximum. Then, the trolley 110 returns to the trolley guide rail 120 and moves along the trolley guide rail 120 to the beginning or end of the trolley guide rail 120. The stacked workpieces are then transferred from the trolley 110 by subsequent equipment (stacking and transfer device). After the workpieces on the trolley 110 are transferred, the trolley 110 returns to the lifting position and repeats the above stacking process.

[0056] In summary, the embodiments provided by this utility model use a lifting component to raise the trolley, thereby reducing the distance between the trolley and the feeding position. The height of the workpiece sheet carried by the trolley gradually decreases as the amount of sheet decreases, thus achieving the stacking of the sheet. After stacking, the trolley transfers the stacked workpiece along the trolley guide rail. Furthermore, during the process of transferring the stacked workpiece by the trolley, a buffer fork can be used for temporary stacking of the sheet, maintaining the continuity of the stacking operation.

[0057] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, 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 this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model 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 this utility model.

Claims

1. A lifting device for stacking, characterized in that, The device includes a trolley, a trolley guide rail, a lifting assembly, and a buffer fork. The trolley is mounted on the trolley guide rail and can move along the trolley guide rail to a lifting position. The lifting position is equipped with the lifting assembly, which lifts the trolley located at the lifting position to a predetermined height. The trolley is used to carry the material sheet. When the trolley carries the material sheet, the lifting assembly lowers its height according to the amount of material sheet carried by the trolley; The buffer fork is located above the lifting assembly and is used to carry the sheet and transfer the sheet to the trolley.

2. The lifting device for stacking according to claim 1, characterized in that, The lifting assembly includes a first frame, a lifting cylinder, a lifting guide column, and a material support platform; The lifting cylinder and the lifting guide column are mounted on the first frame, and the movable end of the lifting cylinder and the movable end of the lifting guide column are respectively connected to the material support platform; The material support platform is equipped with a positioning pin, and the material support platform is used to support the trolley, and the positioning pin is used to position the trolley.

3. The lifting device for stacking according to claim 2, characterized in that, The lifting assembly also includes a trolley pedal, and the trolley pedal is provided on both sides of the first frame. The upper plane of the trolley pedal is at the same level as the upper plane of the material support platform when it is in the lower limit position.

4. The lifting device for stacking according to claim 2, characterized in that, The lifting assembly also includes a lower limit switch, which is located on the first frame and below the material support platform. The lower limit switch is used to detect the lower limit position of the material support platform's movement.

5. The lifting device for stacking according to claim 2, characterized in that, The number of lifting guide columns is multiple, and the multiple lifting guide columns are arranged symmetrically around the lifting cylinder with the lifting cylinder as the center.

6. The lifting device for stacking according to claim 5, characterized in that, The movable end of the lifting guide column is connected to the material support platform, and the movable ends of adjacent lifting guide columns are connected by a lifting guide connector.

7. The lifting device for stacking according to claim 1, characterized in that, The buffer fork includes a second frame, the second frame is provided with a movable frame, a first motor, a first guide rail and a synchronous belt, and the movable frame is provided with a receiving fork frame; The first motor is connected to the synchronous belt drive, the synchronous belt is fixedly connected to the movable frame, the movable frame is slidably connected to the first guide rail, the first guide rail is arranged parallel to the first direction, and the receiving fork can move along the first direction and extend directly above the lifting assembly.

8. The lifting device for stacking according to claim 7, characterized in that, The movable frame is equipped with a second guide rail, a second motor, and a lead screw. The second motor is drivenly connected to the lead screw, the lead screw is hinged to the movable frame, and the lead screw is drivenly connected to the receiving fork. The second guide rail is arranged parallel to a second direction, which is perpendicular to the first direction. The lead screw is arranged parallel to the second guide rail, and the receiving fork is slidably connected to the second guide rail.

9. The lifting device for stacking according to claim 8, characterized in that, The receiving fork frame includes multiple parallel fork units, which are slidably connected to the second guide rail and connected to the lead screw drive.

10. A stacking production line, characterized in that, Includes the lifting device for stacking as described in any one of claims 1-9.

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