A guardrail column stacking and packaging line

Abstract

The present invention relates to the field of automatic packaging technology, and specifically to a guardrail column stacking and packaging line, comprising a stacking area, a packaging area, and a locking mechanism. In the present invention, a single row of columns is limited in both the left and right directions and the front and back directions in the stacking area. While stacking into a stack in the packaging area, a locking rod converts the elastic locking of the row of columns by the front and rear locking plugs into a rigid locking. At the same time, the four upper and lower locking rows are integrated, and the locking rows restrict each other, so that adjacent columns fit tightly together and are aligned in the left and right directions with the locking rows as the reference. This prevents the columns in the column stack from becoming loose or falling due to vibration during subsequent transportation, and prevents the protective effect of the packaging film from being affected by uneven columns.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic packaging, in particular to a guardrail column stacking and packaging line. Background Art

[0002] Guardrail posts are vertical components used to support and fix guardrail systems. They are widely used in the safety protection of roads, bridges, highways, parking lots, and industrial and commercial facilities. They are usually round tubes, square tubes or H-shaped steel. The surface of the posts is usually galvanized, sprayed or electrophoresed, and other surface treatment processes. In order to prevent surface damage and to facilitate transportation and loading and unloading, the posts need to be packaged after production.

[0003] Currently, assembly line operations are mainly used for packing columns. First, a single column is transported by a transfer device (such as a roller conveyor), and the ends of the single column are packed with packing film (usually plastic film). The columns are then stacked in rows. Then, a gripper uses electromagnetic gripping to transfer the single row of columns. This operation is repeated multiple times to form a column stack, which is currently mainly 4x4 column stacks. Then, a conveying device (such as a roller conveyor) moves the column stack, and the existing packing mechanism packs the column stack, so that the column stack is wrapped with packing film. Finally, the column stack is manually locked to complete the packing.

[0004] The above process has the following problems: when the columns are stacked into piles and moved for packaging, the column stacks are vibrated during movement due to the conveying equipment, which can easily lead to the problem of the column stacks becoming loose or collapsing. Secondly, the columns in the column stacks are not able to stick tightly to each other due to vibration, which affects the packaging effect of the packaging film. In addition, due to vibration, some columns in the column stacks are not arranged evenly along their length. Therefore, after packaging, the protective effect of the packaging film on the columns is reduced, and the subsequent transportation or storage process is affected. Summary of the Invention

[0005] Based on this, it is necessary to provide a guardrail column stacking and packaging line, which aims to solve the problems of the above-mentioned prior art.

[0006] The present application provides a guardrail column stacking and packaging line, which includes a transfer device, two conveying devices, a packaging mechanism arranged between the two conveying devices, a grabber and a manipulator, and also includes: a stacking area and a packaging area. The stacking area is located on the rear side of the packaging area. The columns are stacked in a single row from front to back by the transfer device in the stacking area. In the packaging area, the grabber grabs the single row of columns and stacks them, and then packs them by the packaging mechanism during the left movement.

[0007] Locking mechanisms are respectively provided on the left and right sides of the columns in the stacking area. The locking mechanisms are separately installed on each row of columns in the stacking area and assembled and locked in the packaging area. The locking mechanisms include four locking rows, and two front-to-back symmetrical locking plugs are provided on the locking rows for sliding back and forth.

[0008] A docking assembly is provided in the stacking area, and the docking assembly includes two pushing plates for pushing the locking plug to move. The two pushing plates are close to each other so that the locking plug is clamped into the frontmost and rearmost columns of the row of columns for elastic locking.

[0009] The locking mechanism further comprises a locking portion, which locks the corresponding locking row during the stacking process, thereby forming a rigid lock and simultaneously locking the four locking rows to each other.

[0010] A guide group is provided in the locking mechanism, and the guide group cooperates with the conveying equipment to guide the mobile packaging process.

[0011] According to a favorable embodiment, the locking row has two left-right symmetrical sliding grooves on the end face facing the column, a sliding block is slidingly arranged in the sliding groove, the locking insert is fixedly arranged on the sliding block, and a locking spring is fixedly arranged between the sliding block and the inner wall of the sliding groove.

[0012] According to an advantageous embodiment, the two locking mechanisms are arranged symmetrically on the left and right, and the locking plug is divided into a locking area and a guiding area from right to left.

[0013] The longitudinal cross-section of the locking area is composed of an oblique section, a vertical section and another oblique section from top to bottom. The two oblique sections are symmetrical up and down. The upper oblique section is inclined forward from bottom to top, and the right end face of the oblique section is inclined downward from right to left. After the locking block is inserted into the column, the upper and lower ends of its locking area are tightly attached to the upper and lower sides of the column.

[0014] The vertical length of the guide area is smaller than the vertical length of the locking area. The guide area is divided into a horizontal section and a guide section from right to left, and the guide section is inclined forward from right to left.

[0015] According to an advantageous embodiment, a plurality of balls are movably provided on opposite surfaces of the vertical sections of the locking areas of the two locking plugs on the same locking row.

[0016] According to a favorable embodiment, two left-right symmetrical mounting frames are provided in the stacking area, and two cylinders distributed front and back are provided on the mounting frames. The telescopic sections corresponding to the two cylinders are fixedly connected to the corresponding pushing plates. When the pushing plates push the locking rows close to the columns, the four columns in the row are aligned front and back through the mutual cooperation of the left and right locking rows.

[0017] According to a favorable embodiment, the locking mechanism also includes a sliding rod. The locking mechanism also includes a sliding rod. Two sliding rods are symmetrically distributed front and back and pass through the sliding groove, with the axis extending from front to back on the locking row. The sliding block is rotatably sleeved on the corresponding sliding rod, the locking spring is sleeved on the corresponding sliding rod, and a locking groove is provided on the circumferential surface of the sliding rod.

[0018] The locking row is provided with an inserting groove which corresponds one to one with the locking groove and is connected with the sliding groove. The upper end opening of the inserting groove is chamfered. The lower end surface of the locking row is fixed with two front-to-back symmetrical mounting sleeves. A locking rod is provided in the mounting sleeve for sliding up and down. A reset spring is fixed between the locking rod and the locking row.

[0019] According to a favorable embodiment, in the two adjacent locking rows above and below, after the locking rod on the upper locking row passes through the corresponding plug-in slot below, the downward placement process of the upper locking row is guided, and after the locking rod is pressed against the locking slot, the front and rear directions of the sliding rod are locked, so that the corresponding locking plug forms a rigid lock.

[0020] According to a favorable embodiment, an accommodating groove is opened in the area between the two sliding grooves on the locking row, and the sliding rod slides back and forth through the accommodating groove. An operating rod is provided between the two sliding rods for sliding back and forth together, and a paddle is fixedly sleeved on the operating rod. Two front-to-back symmetrical spiral springs are fixedly provided between the operating rod and the inner wall of the accommodating groove.

[0021] According to a favorable embodiment, the guide group includes guide rollers, and two rows of guide rollers are fixedly arranged in the conveying equipment, which are symmetrical in front and back and equidistant from left to right. The axes of the guide rollers are vertical, and the opposite back surfaces of the lowermost locking rows in the two locking mechanisms are fixedly provided with two symmetrical guide members, which are tightly fitted with the corresponding guide rollers so that the locking rows are located at the center position of the front and back direction of the conveying equipment.

[0022] In summary, the present invention includes at least one of the following beneficial effects: First, the present invention limits the left and right directions and the front and back directions of a single row of columns in the stacking area. When stacking into stacks in the packaging area, the locking rod changes the elastic locking of the front and rear locking blocks on the row of columns into a rigid locking, and at the same time, the upper and lower four locking rows are integrated into one, and the locking rows restrict each other, so that adjacent columns are tightly fitted and aligned in the left and right directions with the locking rows as the reference, thereby avoiding the problem of columns in the column stack becoming loose and falling due to vibration during subsequent transportation, and avoiding the protection effect of the packaging film being affected by uneven columns.

[0023] 2. The present invention adjusts the front and rear positions of the columns multiple times through guide members and guide rollers during the process of transporting and packaging, always maintaining the horizontal center axis of the column stack and the operating axis in the packaging mechanism in the same line, thereby improving the contact tightness between the packaging film and the columns, avoiding the problem of loose packaging film wrapping during transport and packaging due to deviation of the column stack, and improving the packaging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of a guardrail column stacking and packaging line provided according to an embodiment of the present invention is shown.

[0026] Figure 2 A top view of a guardrail post palletizing and packaging line provided according to an embodiment of the present invention is shown.

[0027] Figure 3 The embodiment of the present invention provides Figure 2 Enlarged view of point A in the middle.

[0028] Figure 4 A side view of a conveying device, a guide roller and a guide member provided according to an embodiment of the present invention is shown.

[0029] Figure 5 A three-dimensional schematic diagram of the locking portion, the locking plug and the guide member provided according to an embodiment of the present invention is shown.

[0030] Figure 6 A partially cutaway perspective diagram of a locking row, a locking insert, and a sliding post provided according to an embodiment of the present invention is shown.

[0031] Figure 7 The embodiment of the present invention provides Figure 6 Enlarged view of point B in the middle.

[0032] Figure 8 A side view of a locking plug and a column stack according to an embodiment of the present invention is shown.

[0033] Figure 9 A schematic structural diagram of a locking plug provided according to an embodiment of the present invention is shown.

[0034] Among them, the above-mentioned drawings include the following figure marks: 1. stacking area; 2. packaging area; 3. locking mechanism; 30. locking row; 31. locking plug; 310. sliding groove; 311. sliding block; 312. locking spring; 313. ball; 32. docking assembly; 320. pushing plate; 321. mounting frame; 322. cylinder; 33. locking part; 330. sliding rod; 331. locking groove; 332. plug-in groove; 333. mounting sleeve; 334. locking rod; 335. return spring; 336. receiving groove; 337. operating rod; 338. paddle; 339. scroll spring; 34. guide group; 340. guide roller; 341. guide member; 35. locking area; 350. oblique section; 351. vertical section; 36. guide area; 360. horizontal section; 361. guide section. DETAILED DESCRIPTION

[0035] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] like Figure 1 and Figure 2 As shown, a guardrail column stacking and packaging line includes a transfer device for transferring a single column (using existing technology, not shown in the figure), two conveying devices, a packaging mechanism arranged between the two conveying devices, a grabbing arm for grabbing a single row of columns (using existing technology, not shown in the figure) and a manipulator for assisting the locking process (using existing technology, not shown in the figure), and also includes: a stacking area 1 and a packaging area 2, the stacking area 1 is located on the rear side of the packaging area 2, four columns are stacked in a single row from front to back in the stacking area 1 by the transfer device (not shown in the figure), and the single row of columns are grabbed by the grabbing arm and stacked in the packaging area 2, and then packaged by the packaging mechanism during the left movement.

[0037] like Figure 1 、 Figure 2 and Figure 5 As shown, the mobile device is arranged in the stacking area 1, and locking mechanisms 3 are respectively provided on the left and right sides of the columns in the stacking area 1. The locking mechanisms 3 are separately installed on each row of columns in the stacking area 1, and then assembled and locked in the packaging area 2. The locking mechanism 3 includes four locking rows 30 arranged equidistantly from top to bottom. The locking row 30 slides back and forth toward the end face of the column and is provided with two front-to-back symmetrical locking plugs 31.

[0038] like Figure 1 、 Figure 2 and Figure 5 As shown, a docking assembly 32 is provided in the stacking area 1. The docking assembly 32 includes two push plates 320 that are symmetrical on the left and right and are used to push the locking plug 31 to move. The two push plates 320 are moved closer to each other on the left and right so that the locking plug 31 is inserted into the front and rear columns of the row of columns, and at the same time, the columns in the same row are aligned on the left and right to complete the initial elastic locking.

[0039] Two conveying devices are distributed on the left and right and are set in the packaging area 2. The conveying devices are existing technologies and include conveying rollers that are evenly spaced from left to right and whose axes extend from front to back. The conveying rollers are driven by motors (not shown in the figure) to drive the columns placed on them to move from right to left. Each row of columns is moved from the stacking area 1 to the conveying device on the right side for stacking by the grabber through magnetic grabbing. The column movement direction is shown in the figure. Figure 2 Mark the direction of the arrow, such as Figure 1 、 Figure 2 and Figure 5 As shown, the locking mechanism 3 further includes a locking portion 33. During the palletizing process, the locking portion 33 locks the corresponding locking row 30, forming a final rigid locking while locking the four locking rows 30 to each other.

[0040] like Figure 1 and Figure 2 As shown, the locking mechanism 3 is provided with a guide group 34 for guiding the column to move leftward. After the stacking is completed, the guide group 34 cooperates with the conveying equipment to guide the packaging movement process.

[0041] During operation, a single column is transported to the stacking area 1 by the transfer equipment and four columns are arranged in a row, and the four columns in a row are made to be close to each other front and back, and the four columns in the row are located between the two pushing plates 320, and then the two pushing plates 320 approach each other. During the movement of the pushing plates 320, the pushing plates 320 push the locking row 30 to move synchronously, and finally the two locking plugs 31 on the locking row 30 are respectively inserted into the frontmost column and the rearmost column of the row of columns, and at this time the locking row 30 is close to the columns, so that the rows of columns are close to each other front and back and aligned left and right, completing the installation of the locking row 30 and the stacking of a row of columns, and then the grabber grabs the row of columns by magnetic grabbing and puts the row of columns The column and the locking rows 30 on its left and right sides move synchronously to the right conveying equipment. At this time, the conveying equipment stops the conveying action and repeats the above process, so that multiple rows of columns complete the stacking process in the conveying equipment on the right side of the packaging area 2 to form a column stack. After that, the conveying equipment works, the guide group 34 guides, the column moves from right to left, and the packaging mechanism performs packaging. It should be noted that after the packaging mechanism completes the packaging, the column stack is packaged manually using the existing packaging machine, and all the packaging processes of the column are completed. Secondly, in this link, the locking rows 30 in the column stack are manually disassembled at the same time, thereby improving the packaging quality of the column without affecting the packaging efficiency of the column sorting line.

[0042] It should be noted that, during the movement of the uprights to the conveying device for stacking, the locking portions 33 lock the upper and lower adjacent locking rows 30, so that the locking inserts 31 form a rigid locking clamp on the uprights. At the same time, the uprights in each row are interconnected by the locking portions 33, so that the uprights are stacked tightly and aligned on both sides. The central axis of the uprights is aligned with the rotating packaging axis in the packaging mechanism through the guide group 34. Figure 4 , which improves the tightness between the packaging film and the pillar after packaging.

[0043] In summary, through the above process, the columns in the column stack are closely attached to each other, avoiding the problem of looseness and collapse of the columns due to external vibration during transportation and packaging. Secondly, the columns in the column stack are aligned left and right, avoiding the protrusion of the columns on the left and right sides affecting the packaging effect.

[0044] like Figure 6 and Figure 7 As shown, the locking row 30 has two left-right symmetrical sliding grooves 310 on the end face facing the column, a sliding block 311 is slidingly arranged in the sliding groove 310, the locking plug 31 is fixedly arranged on the sliding block 311, and a locking spring 312 is fixedly arranged between the sliding block 311 and the inner wall of the sliding groove 310.

[0045] like Figure 6 and Figure 9As shown, the two locking mechanisms 3 are symmetrically arranged on the left and right. The locking plug 31 on the front side of the same locking row 30 in the right locking mechanism 3 is used as an example for explanation. The locking plug 31 is composed of a locking area 35 and a guide area 36 from right to left. The longitudinal cross-section of the locking area 35 is composed of an oblique section 350, a vertical section 351 and another oblique section 350 from top to bottom. The two oblique sections 350 are symmetrical up and down. The upper oblique section 350 is inclined forward from bottom to top, and the oblique section 351 is inclined forward from bottom to top. The right end surface of the guide 36 is inclined downward from right to left. After the locking insert 31 is inserted into the column, the upper and lower ends of the locking area 35 are in close contact with the upper and lower sides of the column. The vertical length of the guide area 36 is shorter than that of the locking area 35. The guide area 36 is divided into a horizontal section 360 and a guide section 361 from right to left. The guide section 361 is inclined forward from right to left. To facilitate the locking insert 31 to be inserted into the column, the end of the guide section 361 away from the locking area 35 is chamfered.

[0046] like Figure 9 As shown, in order to reduce the friction force when the locking plug 31 is inserted into the column, a plurality of balls 313 are movably provided on the opposite surfaces of the vertical sections 351 of the locking areas 35 of the two locking plugs 31 on the same locking row 30.

[0047] like Figure 1 and Figure 2 As shown, two left-right symmetrical mounting frames 321 are provided in the stacking area 1, and two cylinders 322 distributed front and back are provided on the mounting frames 321. The telescopic sections corresponding to the two cylinders 322 are fixedly connected to the corresponding pushing plates 320. The locking rows 30 to be inserted are arranged equidistantly from top to bottom under the pushing plates 320, and are transferred by the robot to the transverse movement area of ​​the pushing plates 320 for insertion and locking. When the pushing plates 320 push the locking rows 30 close to the columns, the four columns in the row are aligned front and back through the mutual cooperation of the left and right locking rows 30.

[0048] During operation, the columns are transferred to the stacking area 1 by the transfer equipment and placed in a row between the two pushing plates 320. The manipulator works to transfer the corresponding two locking rows 30 to between the corresponding pushing plates 320 and the columns, and then the cylinder 322 works to make the pushing plates 320 close to the columns. During the movement of the pushing plates 320, the pushing plates 320 push the locking rows 30 close to the columns, and the two locking plugs 31 on the locking rows 30 are respectively inserted into the frontmost column and the rearmost column in the row of columns, and the locking springs 312 are deformed, so that there is a tendency for the corresponding two locking plugs 31 to approach each other, that is, the front and rear directions of the row of columns are elastically locked by the locking plugs 31 at both ends, so that the row of columns is tightly attached to each other, and at the same time, the two locking rows 30 are close to the sides of the columns, and the left and right sides of the row of columns are limited, so that the left and right sides of the row of columns are aligned and in the set position, which is convenient for subsequent stacking.

[0049] In the initial state, the locking plug 31 has not entered the column, and the front-to-back distance between the horizontal sections 360 of the two locking plugs 31 is less than the shortest distance between the frontmost column and the rearmost column, but the front-to-back distance between the two guide sections 361 is greater than the shortest distance between the frontmost column and the rearmost column. In the process of inserting the locking plug 31 into the column, it is necessary to further explain that the guide area 36 of the locking plug 31 first enters the column, and the inclined section of the guide section 361 guides the locking plug 31. The insert block 31 is inserted into the column and causes the locking spring 312 to deform, thereby causing the locking insert block 31 to press the corresponding column. As the locking insert block 31 gradually moves, the inclined surface of the inclined section 350 of the locking insert block 31 contacts the side of the column. During the process of the locking insert block 31 being squeezed into the column by the inclined surfaces of the two inclined sections 350 on the locking insert block 31, the locking insert block 31 is located at the center position in the vertical direction of the column. Finally, the locking insert block 31 is completely inserted into the column. Figure 8 At this time, the oblique section 350 is in close contact with the two end faces at right angles to the inner wall of the column, thereby forming two upper and lower triangular pressing areas, which improves the stability after clamping.

[0050] In summary, the left and right locking rows 30 form a left-right alignment and front-back elastic locking and clamping action for the columns in the row, so that all the columns in the row are tightly attached to each other front-back.

[0051] like Figure 1 、 Figure 6 and Figure 7 As shown, the locking mechanism 3 also includes a sliding rod 330. Two sliding rods 330 are symmetrically distributed front to back and pass through the sliding groove 310 and have an axis extending from front to back and are movably provided on the locking row 30. The sliding block 311 is rotatably sleeved on the corresponding sliding rod 330, and the locking spring 312 is sleeved on the corresponding sliding rod 330. The circumferential surface of the sliding rod 330 is provided with a locking groove 331.

[0052] The locking row 30 is provided with an insertion slot 332 which corresponds one-to-one with the locking slot 331 and is connected to the sliding slot 310. The upper end opening of the insertion slot 332 is chamfered, and the lower end surface of the locking row 30 is fixed with two front-to-back symmetrical mounting sleeves 333. A locking rod 334 is sliding up and down in the mounting sleeve 333. A return spring 335 is fixed between the locking rod 334 and the locking row 30. In order to guide the locking rod 334 to be inserted into the insertion slot 332, the edge of the locking slot 331 and the lower end surface of the locking rod 334 are chamfered.

[0053] In the two adjacent locking rows 30 above and below, after the locking rod 334 on the upper locking row 30 passes through the corresponding plug-in slot 332 below, the downward movement and placement process of the upper locking row 30 is guided. After the locking rod 334 is pressed against the locking slot 331, the front and rear directions of the sliding rod 330 are locked, so that the corresponding locking plug block 31 is rigidly locked.

[0054] like Figure 6 As shown, an accommodating groove 336 is opened in the area between the two sliding grooves 310 on the locking row 30, and the sliding rod 330 slides back and forth through the accommodating groove 336. An operating rod 337 is provided between the two sliding rods 330 for sliding back and forth together. A paddle 338 is fixedly sleeved on the operating rod 337, and two front-to-back symmetrical spiral springs 339 are fixedly provided between the operating rod 337 and the inner wall of the accommodating groove 336.

[0055] Initially, the paddle 338 is maintained at the upper side by the spiral spring 339, and the locking groove 331 is facing upward. After the locking plug 31 is inserted into the column, the locking groove 331 moves with the sliding block 311 and the sliding rod 330 to the bottom of the corresponding plug-in groove 332.

[0056] In the process of stacking multiple rows of columns from bottom to top, the locking row 30 is also stacked from bottom to top. The grabbing hand drives the locking row 30 to move from top to bottom. During the movement and stacking process, the locking rod 334 is gradually inserted into the corresponding plug-in slot 332 below it. The insertion and guiding process of the four locking rods 334 in the single row of columns guides the placement process of the single row of columns, thereby improving the placement accuracy and ensuring the stability of the column stack after subsequent rigid clamping.

[0057] When the cam 331 is in the unlock state, the locking rod 334 is in the unlock state, and the locking rod 334 is in the unlock state, so that the cam 331 is locked and the locking rod 334 is locked.

[0058] Secondly, the locking rod 334 not only provides a locking function, but also makes the upper and lower four locking rows 30 form a whole, and the locking rows 30 restrict each other, so that the columns in the column stack fit tightly and are aligned in the left and right directions with the locking rows 30 as the reference, avoiding the columns in the column stack from loosening and falling due to vibration during subsequent transportation.

[0059] After the packaging mechanism completes the packaging operation, the paddle 338 is manually pushed downward, and the paddle 338 drives the operating rod 337 to rotate synchronously, the spiral spring 339 is deformed, and the sliding rod 330 rotates synchronously with the operating rod 337. In order to ensure that the locking groove 331 is not stuck with the locking rod 334 at this time, the left and right sides of the locking groove 331 are chamfered, and finally the locking rod 334 is staggered with the corresponding locking groove 331, and the return spring 335 is continuously compressed. At this time, the sliding rod 330 releases the rigid lock in the front and rear directions, and all the locking rows 30 are manually moved out to the left and right. The above-mentioned toggling method is used to unlock all the locking rows 30, which is convenient for manual quick removal of the locking rows 30, thereby improving the convenience of the process.

[0060] like Figure 2 、 Figure 3 and Figure 4 As shown, the guide group 34 includes guide rollers 340. Two rows of guide rollers 340 are fixedly arranged in the conveying equipment, which are symmetrical in front and back and equidistant from left to right. The axes of the guide rollers 340 are vertical. Two front-to-back symmetrical guide members 341 are fixedly provided on the opposite back sides of the locking rows 30 at the bottom of the two locking mechanisms 3. The guide members 341 are tightly fitted with the corresponding guide rollers 340, so that the locking rows 30 are located at the center position in the front-to-back direction of the conveying equipment.

[0061] After completing the rigid locking of the locking plug 31, the conveying equipment works to move the column from right to left. During the movement, the lower guide member 341 cooperates with the corresponding guide roller 340 from right to left in the process of moving to the left, guiding the column to move left while adjusting the front and rear positions of the column multiple times, always maintaining the horizontal center axis of the column stack and the operating axis of the packaging mechanism in line, thereby improving the contact tightness between the packaging film and the column, avoiding the problem of loose packaging film wrapping during transportation and packaging due to the offset of the column stack, and improving the packaging effect.

[0062] It should be noted that in the process of installing the locking row 30 on the corresponding row of columns, a robot is required to install the locking row 30 with the guide part 341 in sequence to ensure that the guide part 341 is provided on the bottom locking row 30 of the column stack in the conveying equipment.

[0063] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0064] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0065] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0066] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A guardrail column stacking and packaging line, comprising a transfer device, two conveying devices, a packaging mechanism arranged between the two conveying devices, a grabber and a manipulator, characterized in that: Also includes: The stacking area and the packaging area, the stacking area is located at the rear side of the packaging area, the columns are stacked in a single row from front to back by the transfer equipment in the stacking area, and the single row of columns are grabbed by the grabber and stacked in the packaging area, and then packaged by the packaging mechanism during the left movement; The left and right sides of the columns in the stacking area are respectively provided with locking mechanisms. The locking mechanisms are separately installed on each row of columns in the stacking area and assembled and locked in the packaging area. The locking mechanisms include four locking rows, and two front-to-back symmetrical locking plugs are provided on the locking rows for sliding forward and backward; A docking assembly is provided in the stacking area, and the docking assembly includes two push plates for pushing the locking plug to move. The two push plates are close to each other so that the locking plug is clamped into the frontmost and rearmost columns of the row of columns for elastic locking; The locking mechanism further comprises a locking portion, which locks the corresponding locking row during the palletizing process, thereby forming a rigid lock and locking the four locking rows to each other; A guide group is provided in the locking mechanism, and the guide group cooperates with the conveying equipment to guide the mobile packaging process.

2. A guardrail column stacking and packaging line according to claim 1, characterized in that: The locking row is provided with two left-right symmetrical sliding grooves on the end face facing the column, a sliding block is slidably arranged in the sliding groove, the locking insert is fixedly arranged on the sliding block, and a locking spring is fixedly arranged between the sliding block and the inner wall of the sliding groove.

3. A guardrail column stacking and packaging line according to claim 2, characterized in that: The two locking mechanisms are symmetrically arranged on the left and right, and the locking plug is divided into a locking area and a guide area from right to left; The longitudinal cross-section of the locking area is composed of an oblique section, a vertical section, and another oblique section from top to bottom. The two oblique sections are symmetrical up and down. The upper oblique section is inclined forward from bottom to top, and the right end surface of the oblique section is inclined downward from right to left. After the locking plug is inserted into the column, the upper and lower ends of the locking area are tightly attached to the upper and lower sides of the column. The vertical length of the guide area is smaller than the vertical length of the locking area. The guide area is divided into a horizontal section and a guide section from right to left, and the guide section is inclined forward from right to left.

4. A guardrail column stacking and packaging line according to claim 3, characterized in that: A plurality of balls are movably provided on opposite surfaces of the vertical sections of the locking areas of the two locking plug blocks on the same locking row.

5. The guardrail column stacking and packaging line according to claim 1, characterized in that: Two left-right symmetrical mounting frames are provided in the stacking area, and two cylinders distributed front and back are provided on the mounting frames. The telescopic sections of the corresponding two cylinders are fixedly connected to the corresponding pushing plates. When the pushing plates push the locking rows close to the columns, the four columns in the row are aligned front and back through the mutual cooperation of the left and right locking rows.

6. The guardrail column stacking and packaging line according to claim 3, characterized in that: The locking mechanism also includes a sliding rod, and two sliding rods are symmetrically distributed front and back and pass through the sliding groove on the locking row, with the axis extending from front to back. The sliding block is rotatably sleeved on the corresponding sliding rod, and the locking spring is sleeved on the corresponding sliding rod. The circumferential surface of the sliding rod is provided with a locking groove; The locking row is provided with an inserting groove which corresponds one to one with the locking groove and is connected with the sliding groove. The upper end opening of the inserting groove is chamfered. The lower end surface of the locking row is fixed with two front-to-back symmetrical mounting sleeves. A locking rod is provided in the mounting sleeve for sliding up and down. A reset spring is fixed between the locking rod and the locking row.

7. The guardrail column stacking and packaging line according to claim 6, characterized in that: In the two adjacent locking rows above and below, after the locking rod on the upper locking row passes through the corresponding plug-in slot below, the downward placement process of the upper locking row is guided, and after the locking rod is pressed against the locking slot, the front and rear directions of the sliding rod are locked.

8. The guardrail column stacking and packaging line according to claim 6, characterized in that: An accommodating groove is provided in the area between the two sliding grooves on the locking row, and the sliding rod slides back and forth through the accommodating groove. An operating rod is provided between the two sliding rods to slide back and forth together, and a paddle is fixed on the operating rod. Two front-to-back symmetrical spiral springs are fixed between the operating rod and the inner wall of the accommodating groove.

9. The guardrail column stacking and packaging line according to claim 1, characterized in that: The guide group includes guide rollers. Two rows of guide rollers are fixedly arranged in the conveying equipment, which are symmetrical in front and back and equidistant from left to right. The axes of the guide rollers are vertical. Two guide members are fixedly arranged on the opposite sides of the locking rows at the bottom of the two locking mechanisms. The locking rows are tightly fitted with the corresponding guide rollers, so that the locking rows are located at the center position of the front and back direction of the conveying equipment.

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