Universal threshold beam loading and unloading carrier

Abstract

A universal threshold beam loading and unloading carrier comprises a positioning mechanism arranged on a base frame, the positioning mechanism comprises a first supporting frame, a second supporting frame, a third supporting frame, a fourth supporting frame, a first pressing frame and a second pressing frame, the first supporting frame, the second supporting frame, the third supporting frame and the fourth supporting frame are identical in structure, and each supporting frame comprises a first support and a linkage block which are installed on the base frame. A plurality of supporting blocks are hinged in the height direction at intervals, limiting rods are arranged below the inward ends of the corresponding supporting blocks, linkage blocks are arranged between every two adjacent supporting blocks, the lower ends of the linkage blocks are hinged to the outward ends of the supporting blocks on the lower layer, and limiting grooves are formed in the upper ends of the linkage blocks and hinged to the outward ends of the supporting blocks on the upper layer. Each pressing frame comprises a second support installed on the machine frame, the second supports vertically extend upwards, a plurality of pressing blocks are arranged in the height direction at intervals, and the extending ends of the pressing blocks are elastic sections. The automatic loading and unloading device is simple in structure and low in machining cost, can automatically load and unload a plurality of threshold beams, is suitable for the threshold beams of multiple specifications, and meets the transportation requirements of logistics enterprises.

Description

Technical Field

[0001] This utility model relates to the field of packaging and transportation, and in particular to a universal sill beam loading and unloading vehicle. Background Technology

[0002] With the continuous development and progress of the automotive machinery manufacturing and packaging industries, manufacturing automation has become a standard trend in the automotive industry, which in turn places higher demands on logistics packaging design, manufacturing, transportation, maintenance, and quality. Manufacturers hope to meet the needs of manufacturing automation as much as possible while ensuring product integrity, quality, and strength.

[0003] like Figure 1 The aforementioned is a threshold beam structure. During the packaging and transportation process, the threshold beam needs to provide support on one side of the straight section and on the extended ends of the two branch sections on the other side. Currently used threshold beam carriers are usually multi-layered designs, and packaging is mostly done manually or semi-automatically, which greatly wastes human resources and cannot meet customers' needs for the development trend of logistics packaging.

[0004] Therefore, designing a threshold beam carrier that can meet the needs of automated loading and unloading is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a universal sill beam loading and unloading vehicle. This vehicle has a simple structure and low processing cost, can automatically load and unload multiple sill beams, and is adaptable to sill beams of various specifications, thus meeting the transportation needs of logistics companies.

[0006] The technical solution to achieve the purpose of this utility model is: a universal sill beam loading and unloading carrier, including a base frame, on which at least one set of positioning mechanisms are provided. Each positioning mechanism includes a first support frame, a second support frame, a third support frame, and a fourth support frame with identical structures, as well as a first pressure frame and a second pressure frame with identical structures. The first and second support frames correspond to the two ends of one side of the straight segment of the sill beam and can move along the width direction of the sill beam. The third and fourth support frames correspond to the extension ends of the two branch segments of the sill beam and can move along the width direction of the sill beam. The first and second pressure frames correspond to the door... At both ends of the straight section of the sill beam, each support frame includes a first bracket and a linkage block mounted on the base frame. The first bracket extends vertically upward, and multiple support blocks are hinged at intervals along the height direction on the first bracket. A limiting rod is provided below the inward end of the corresponding support block. The linkage block is located between two adjacent support blocks. The lower end of the linkage block is hinged to the outward end of the lower support block, and the upper end of the linkage block is provided with a limiting groove that is hinged to the outward end of the upper support block. Each pressure frame includes a second bracket mounted on the frame. The second bracket extends vertically upward, and multiple pressure blocks are spaced at intervals along the height direction on the second bracket. The extended end of the pressure block is an elastic section.

[0007] The number of positioning mechanisms is two sets, symmetrically distributed along the center of the base frame.

[0008] The center of gravity of the support block is located outside the hinge point.

[0009] The first bracket is an inverted U-shaped frame, and the support block is hinged in the internal space of the inverted U-shaped frame, with the inner end of the support block extending outward from the U-shaped frame and the outer end extending outward from the U-shaped frame.

[0010] The base frame includes four columns arranged in a matrix and a skeleton connected between the four columns. The bottom of the columns is provided with an inverted support bowl. The bottom surface of the skeleton is provided with a positioning frame for the forklift fork arm to be inserted. One short side of the bottom surface of the skeleton is provided with directional wheels at both ends and the other short side is provided with universal wheels at both ends.

[0011] A traction hook is provided in the middle of one short side of the frame.

[0012] Rubber sleeves are fitted on the inner end of the support block and the elastic section of the pressure block.

[0013] The above technical solution has the following beneficial effects:

[0014] 1. A universal sill beam loading and unloading carrier includes a base frame, on which at least one positioning mechanism is provided. By loading multiple sill beams into the positioning mechanism for positioning and transferring them to a designated position, the multiple sill beams are unloaded, thus completing the packaging and transportation operation of the sill beams. The positioning mechanism includes a first support frame, a second support frame, a third support frame, and a fourth support frame with identical structures, as well as a first pressure frame and a second pressure frame with identical structures. The first support frame and the second support frame correspond to both ends of one side of the straight section of the sill beam and can move along the width direction of the sill beam. That is, the first support frame and the second support frame are used to support one side of the bottom surface of the stacked multiple sill beams, and the support requirements for sill beams of different specifications can be met by adjusting the distance from one side of the sill beam. The third and fourth support frames correspond to the extension ends of the two branch segments of the sill beam, respectively, and can move along the width direction of the sill beam. That is, the third and fourth support frames support the bottom surface of the branch segments on the other side of the stacked sill beams. By adjusting the distance from the other side of the sill beam, they can meet the support requirements for sill beams of different specifications. Furthermore, the four-point support of the bottom surface of the sill beam ensures the stability of the support. The first and second pressure frames correspond to the two ends of the straight segment of the sill beam, respectively, and are used to press the top two ends of the stacked sill beams, ensuring the stability of the multiple sill beams during packaging and transportation. Each support frame includes a first bracket and a linkage block mounted on the base frame. The first bracket extends vertically upwards, and multiple support blocks are hinged at intervals along the height direction on the first bracket. A limiting rod is provided below the inward end of the corresponding support block. That is, when the inward end of the support block rotates downwards around the hinge point, it is supported and limited by the limiting rod, ensuring the stability of the support for the sill beam by each support block. The linkage block is set between two adjacent support blocks. The lower end of the linkage block is hinged to the outward end of the lower support block, and the upper end of the linkage block is provided with a limiting groove and hinged to the outward end of the upper support block. When the multiple overlapping threshold beams move downward to a specific height in each first bracket, the inward end of the top support block flips downward (corresponding to the outward end flipping upward) to the horizontal, which drives the inward ends of each support block in the lower layer to flip downward, located below the corresponding position of the threshold beam. The multiple overlapping threshold beams continue to move downward to be supported on the corresponding support blocks, realizing synchronous support for the multiple overlapping threshold beams. When the multiple overlapping threshold beams move upward in each first bracket, the inward end of the upper support block can freely flip upward to reset (corresponding to the outward end sliding freely in the strip groove), avoiding interference with the threshold beam and ensuring smooth unloading of the threshold beam.Each pressure frame includes a second support mounted on the frame. The second support extends vertically upwards, and multiple pressure blocks are spaced apart along the height direction on the second support. The extended ends of the pressure blocks are elastic sections that can be bent and deformed. During the downward movement of the stacked sill beams, they are pressed against the top two ends of the corresponding sill beams by bending and deformation, which restricts the sill beams from jumping up. This is the loading state. During the upward movement of the stacked sill beams, they are bent and deformed to make way for the sill beams. This is the unloading state.

[0015] 2. The center of gravity of the support block is located outside the hinge point. Under no-load conditions, each support block automatically remains vertical under the action of gravity, avoiding interference during the loading process.

[0016] 3. The base frame includes four columns arranged in a matrix, and a skeleton connecting the four columns. The bottom of each column has inverted support cups, allowing for overlapping transport of vehicles, improving transport efficiency and space utilization. A positioning frame for forklift forks is located in the center of the bottom surface of the skeleton, meeting the needs of forklift transfer. One short side of the bottom surface of the skeleton has directional wheels at both ends, and the other short side has omnidirectional wheels at both ends, meeting the needs of short-distance movement within the factory area.

[0017] 4. Rubber sleeves are fitted on the inner end of the support block and the elastic section of the pressure block to avoid damaging the contact parts of the sill beam surface and ensure the quality of the sill beam.

[0018] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description

[0019] Figure 1 This is a schematic diagram showing the sill beam of this utility model symmetrically placed along the center of the base frame;

[0020] Figure 2 This is a structural schematic diagram of the present invention (right side);

[0021] Figure 3 This is a schematic diagram of the structure of this utility model (left side);

[0022] Figure 4 This is a schematic diagram of the first support of this utility model (outer end);

[0023] Figure 5 This is a schematic diagram of the first support of this utility model (inner end);

[0024] Figure 6 This is a schematic diagram of the second support of this utility model.

[0025] In the attached diagram, 1 is the base frame, 2 is the positioning mechanism, 3 is the first support frame, 4 is the second support frame, 5 is the third support frame, 6 is the fourth support frame, 7 is the first pressure frame, 8 is the second pressure frame, 9 is the first bracket, 10 is the linkage block, 11 is the support block, 12 is the limiting rod, 13 is the limiting groove, 14 is the second bracket, 15 is the pressure block, 16 is the elastic section, 17 is the column, 18 is the skeleton, 19 is the support bowl, 20 is the positioning frame, 21 is the directional wheel, 22 is the universal wheel, and 23 is the traction hook. Detailed Implementation

[0026] Example 1

[0027] See Figures 1 to 6The general-purpose sill beam loading and unloading vehicle includes a base frame 1, on which at least one set of positioning mechanisms 2 are provided. In this embodiment, the base frame 1 includes four columns 17 arranged in a matrix, and a skeleton 18 connected between the four columns 17. The bottom of the columns 17 is provided with an inverted support bowl 19. The bottom surface of the skeleton 18 is provided with a positioning frame 20 for the forklift fork arm to insert into. One short side of the bottom surface of the skeleton 18 is provided with a directional wheel 21 at both ends, and the other short side is provided with a universal wheel 22 at both ends. In order to facilitate short-distance movement within the factory area, a traction hook 23 is also provided in the middle of one short side of the skeleton 18. The skeleton is a mesh structure formed by welding multiple crossbeams and longitudinal beams. Typically, there are two sets of positioning mechanisms, symmetrically distributed along the center of the base frame 1. That is, the same vehicle can load and unload two sets of stacked sill beams at the same time. The positioning mechanism 2 includes a first support frame 3, a second support frame 4, a third support frame 5, and a fourth support frame 6 with the same structure, as well as a first pressure frame 7 and a second pressure frame 8 with the same structure. The first support frame 3 and the second support frame 4 correspond to the two ends of one side of the straight segment of the sill beam and can be moved along the width direction of the sill beam. In this embodiment, the first support frame and the second support frame are set at the upper and lower parts of the left side of the frame and can be adjusted in the left and right directions. The third support frame 5 and the fourth support frame 6 correspond to the extension ends of the two branch segments of the sill beam and can be moved along the width direction of the sill beam. The first pressure frame 7 and the second pressure frame 8 correspond to the two ends of the straight segment of the sill beam. In this embodiment, the first pressure frame and the second pressure frame are set at the upper and lower ends of the left side of the frame and are fixed in position. Each support frame includes a first bracket 9 and a linkage block 10 mounted on a base frame. The first bracket 9 extends vertically upwards, and multiple support blocks 11 are hinged at intervals along the height direction on the first bracket 9. A limiting rod 12 is provided below the inward end of the corresponding support block. In this embodiment, the first bracket 9 is an inverted U-shaped frame and is mounted on the skeleton by bolts. The support blocks 11 are hinged in the internal space of the inverted U-shaped frame. The interval between adjacent support blocks is the same, and the inward end of the support block 11 extends outward from the U-shaped frame, and the outward end extends outward from the U-shaped frame (support state). Typically, the center of gravity of the support block 11 is located outside the hinge point. There are four support blocks on each first bracket, and four overlapping sill beams are also loaded at the same time. The linkage block 10 is disposed between two adjacent support blocks 11. The lower end of the linkage block 10 is hinged to the outward end of the lower support block, and the upper end of the linkage block 10 is provided with a limiting groove 13, which is hinged to the outward end of the upper support block. In the supported state, the outward end of the upper support block is located at the high point of the limiting groove of the linkage block. Each pressure frame includes a second bracket 14 mounted on the frame. The second bracket 14 extends vertically upward, and multiple pressure blocks 15 are spaced apart along the height direction on the second bracket 14. The extended end of the pressure block 15 is an elastic segment 16. In this embodiment, the spacing between adjacent pressure blocks is the same, and there are four pressure blocks on each second bracket.

[0028] To ensure the quality of the sill beam, rubber sleeves are fitted on the inner end of the support block 11 and the elastic section of the pressure block 15.

[0029] Example 2

[0030] The method for loading and unloading sill beams using the general-purpose sill beam loading and unloading vehicle of Example 1 includes the following steps:

[0031] 1) Adjust the positions of the first support frame, the second support frame, the third support frame, and the fourth support frame according to the specifications of the threshold beam, and ensure that each support block is within the projection range of the corresponding support frame (that is, each support block is in a vertical state and the outer end is downward).

[0032] 2) Four threshold beams are stacked on top of each other, and pads are placed between adjacent threshold beams to form a threshold beam stack. The two ends of the threshold beam stack are connected with hanging ropes.

[0033] 3) The threshold beam stacks were moved to the area enclosed by the support frames using hoisting.

[0034] 4) Move the threshold beam stack down until the threshold beam is above the corresponding support block, push the top support block to a horizontal state, and link the other support blocks to a horizontal state;

[0035] 5) Continue to move the sill beam stack down until the support blocks of each layer are limited by the limit rods, and the elastic section of the pressure block of each layer is pressed against the upper surface of the corresponding sill beam, thus completing the loading;

[0036] 6) After the transfer is completed, the threshold beam stack is moved up by hoisting, the elastic sections of each pressure block are repositioned, and each support block is reset to the projection range of the corresponding support frame.

Claims

1. A universal sill beam loading and unloading vehicle, characterized in that: Includes a base frame (1), on which at least one set of positioning mechanisms (2) are provided. The positioning mechanism (2) includes a first support frame (3), a second support frame (4), a third support frame (5), and a fourth support frame (6) with identical structures, as well as a first pressure frame (7) and a second pressure frame (8) with identical structures. The first support frame (3) and the second support frame (4) correspond to the two ends of one side of the straight section of the threshold beam and can be moved along the width direction of the threshold beam. The third support frame (5) and the fourth support frame (6) correspond to the extension ends of the two branch sections of the threshold beam and can be moved along the width direction of the threshold beam. The first pressure frame (7) and the second pressure frame (8) correspond to the two ends of the straight section of the sill beam, respectively. Each support frame includes a first bracket (9) and a linkage block (10) mounted on a base frame. The first bracket (9) extends vertically upward, and multiple support blocks (11) are hinged at intervals along the height direction on the first bracket (9). A limiting rod (12) is provided below the inward end of the corresponding support block. The linkage block (10) is located between two adjacent support blocks (11). The lower end of the linkage block (10) is hinged to the outward end of the lower support block, and the upper end of the linkage block (10) is provided with a limiting groove (13) that is hinged to the outward end of the upper support block. Each pressure frame includes a second support (14) mounted on the frame. The second support (14) extends vertically upward. Multiple pressure blocks (15) are spaced apart along the height direction on the second support (14), and the extended end of the pressure block (15) is an elastic section (16).

2. The universal sill beam loading and unloading vehicle according to claim 1, characterized in that: The number of positioning mechanisms (2) is two sets, which are symmetrically distributed along the center of the base frame (1).

3. The universal sill beam loading and unloading vehicle according to claim 1, characterized in that: The center of gravity of the support block (11) is located outside the hinge point.

4. The universal sill beam loading and unloading vehicle according to claim 1, characterized in that: The first bracket (9) is an inverted U-shaped frame, and the support block (11) is hinged in the internal space of the inverted U-shaped frame. The inner end of the support block (11) extends outward from the U-shaped frame, and the outer end extends outward from the U-shaped frame.

5. The universal sill beam loading and unloading vehicle according to claim 1, characterized in that: The base frame (1) includes four columns (17) arranged in a matrix, and a frame (18) connecting the four columns (17). The bottom of the columns (17) is provided with an inverted support bowl (19). The bottom surface of the frame (18) is provided with a positioning frame (20) for the forklift fork arm to be inserted. One short side of the bottom surface of the frame (18) is provided with a directional wheel (21) at both ends, and the other short side is provided with a universal wheel (22) at both ends.

6. The universal sill beam loading and unloading vehicle according to claim 5, characterized in that: A traction hook (23) is provided in the middle of one short side of the frame (18).

7. The universal sill beam loading and unloading vehicle according to claim 1, characterized in that: Rubber sleeves are fitted on the inner end of the support block (11) and the elastic section of the pressure block (15).

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