Restoration device for logistics box conveying

Abstract

The utility model discloses a correcting device for logistics box conveying, which comprises a supporting platform, a conveying component, a conveying component and a correcting component. The plurality of guide rollers are rotationally positioned below the supporting platform and are symmetrically arranged by taking the conveying center as the center; the restoration component comprises a pair of supporting arms which are rotationally located below the supporting platform and are of a splayed structure, and wide openings of the supporting arms face the conveying direction; a first roller and a second roller are rotationally mounted at two ends of each supporting arm respectively; the axes of the first rolling wheel and the second rolling wheel are vertically arranged, the first rolling wheel and the second rolling wheel are connected through a restoration belt wound around the outer sides of the first rolling wheel and the second rolling wheel, and a plurality of vertically-arranged strip-shaped blocks are arranged on the restoration belt; and the first roller or the second roller is driven to rotate. The logistics box correcting device is simple and compact in structure, correcting of the logistics box in the conveying process is achieved, and deviation of the logistics box and extrusion damage in the correcting process are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics, in particular to a rectification device for transporting logistics boxes. Background Art

[0002] The logistics box is an important logistics transportation and warehousing management tool;

[0003] In the process of transferring logistics boxes on existing conveyor lines, the logistics boxes often deviate or are not centered. The main reason is that when the logistics boxes are placed on the conveyor belt, the friction between the logistics boxes and the conveyor belt is uneven at the moment of contact. Especially when the logistics boxes are transferred from the first conveyor line to the second conveyor line, there is a difference in conveying speed or height between the conveyor lines, which causes the logistics boxes to deviate or be not centered. The logistics boxes that are deviated or not centered cannot be accurately positioned, which affects the actions of the logistics boxes in the subsequent corresponding processes, such as scanning, grabbing, loading goods, and packaging of the logistics boxes.

[0004] In addition, some existing logistics box correction devices mainly use cylinder clamping, that is, when the logistics box is off track or not centered, the cylinder is started to drive a pair of clamping plates to act on both sides of the logistics box to correct it. However, there is a problem: when the logistics box is offset at a large angle, the logistics box contacts the clamping plates diagonally, and the logistics box is easily squeezed and damaged after the cylinder is started. Summary of the invention

[0005] The utility model aims to provide a logistics box conveying alignment device, which has a simple and compact structure and can realize the alignment of the logistics box during the conveying process, thereby avoiding the deviation of the logistics box and the extrusion damage during the alignment process.

[0006] In order to achieve the above-mentioned purpose, the logistics box conveying straightening device comprises:

[0007] A support platform located above the conveying component;

[0008] A plurality of guide rollers are rotatably located below the support platform and are symmetrically arranged around the conveying center;

[0009] Correction parts, including:

[0010] A pair of support arms are rotatably located below the support platform and form an "eight"-shaped structure with a wider opening facing the conveying direction; a first roller and a second roller are rotatably installed at both ends of each support arm;

[0011] The first roller and the second roller have vertically arranged axes and are connected by a correction belt wound around the outside thereof, and the correction belt is provided with a plurality of vertically arranged strip blocks;

[0012] The first roller or the second roller is driven to rotate.

[0013] In some examples of the utility model, a torsion spring is provided at the rotation connection between the support arm and the support platform; under the action of the torsion spring, the support arm is subjected to torsion force toward the conveying center;

[0014] The correction components also include:

[0015] The two ends of the support rod component are rotatably mounted on a pair of support arms, so that the pair of support arms form a double rocker structure.

[0016] In some examples of the present invention, the support rod component includes:

[0017] The first support rod and the second support rod are connected to the support arm at both ends by corresponding rotation;

[0018] The sleeve is installed on the first support rod and the other end of the first support rod with threads in opposite directions to each other.

[0019] In some examples of the present invention, one end of the first roller or the second roller is connected to a driving motor;

[0020] The support arm is provided with a distance sensor for detecting the distance of the transported logistics box. The controller receives signals from a pair of distance sensors and controls the operation of the drive motor.

[0021] In some examples of the present invention, the guide roller is rotatably mounted on a support block;

[0022] The support block moves toward the conveying center and is locked and fixed.

[0023] In some examples of the present utility model, the support platform is provided with a through hole;

[0024] One end of the support block is slidably located on the through hole, and the locking rod is threadedly installed on the support platform, with one end pressing on the support block.

[0025] In some examples of the present invention, a plurality of guide rollers close to the support arm gradually approach the conveying center along the conveying direction, and a plurality of guide rollers far from the support arm are parallel to each other and located on both sides of the conveying center.

[0026] In some examples of the present utility model, the support platform is mounted on a fixed frame via a lifting component;

[0027] The lifting component comprises:

[0028] A driving cylinder is connected to a fixed frame, and an output end is connected to a supporting platform;

[0029] A plurality of guide rods have lower ends fixedly connected to the support platform and upper ends slidingly passing through the fixing frame.

[0030] In some examples of the present invention, the guide roller is located between adjacent conveying rollers in the conveying component;

[0031] The strip-shaped blocks are made of elastic material.

[0032] Compared with the prior art, the logistics box conveying correction device of the present invention facilitates the entry of the logistics box by unfolding a pair of support arms. After the correction belt rotates, it drives the strip blocks on it to act on one side of the offset logistics box in turn to correct the logistics box and reduce the offset angle of the logistics box. Then, the logistics box is guided and corrected by the guide roller, so that the logistics box is smoothly corrected and the damage of the logistics box during the correction process is avoided.

[0033] Since a pair of support arms and support rod components form a double rocker structure, when one corner of the offset logistics box first contacts and squeezes one of its alignment belts 44, the corresponding support arm rotates relative to the support platform, and the support arm on the other side can swing the other corner of the offset logistics box to limit the offset logistics box, so that the logistics box is initially aligned, ensuring that the logistics box passes smoothly through the pair of support arms;

[0034] Since the lifting platform moves up and down to adjust the height to match the height of the logistics box, the guide rollers are adjusted toward the conveying center position and locked, and the support rod components are telescopic to adjust the expansion angle of a pair of support arms to match the width of the logistics box, it is suitable for logistics boxes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is an overall schematic diagram of the utility model;

[0036] Figure 2 It is an overall top view of the utility model;

[0037] Figure 3 It is a motion diagram of a pair of support arms forming a double rocker structure in the utility model;

[0038] Figure 4 It is a schematic diagram of the correction component in the utility model;

[0039] Figure 5 It is a top view of the movement of the offset logistics box in the utility model being corrected;

[0040] Figure 6 This is a partial left view of the guide roller installation of the utility model;

[0041] In the figure: 10, conveying component;

[0042] 20. Support platform;

[0043] 31. guide roller, 32. support block, 33. locking rod, 34. locking nut;

[0044] 40. a correcting member, 41. a supporting arm, 42. a first roller, 43. a second roller, 44. a correcting belt, 45. a strip block, 46. a driving motor;

[0045] 50. support rod component, 51. first support rod, 52. second support rod, 53. sleeve;

[0046] 60. Distance sensor. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in combination with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate quantity restrictions. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0049] like Figure 1 , Figure 2 , Figure 4 As shown, the logistics box conveying correction device comprises:

[0050] A support platform 20 is located above the conveying component 10;

[0051] A plurality of guide rollers 31 are rotatably located below the support platform 20 and are symmetrically arranged about the conveying center;

[0052] The correction component 40 comprises:

[0053] A pair of support arms 41 are rotatably located below the support platform 20 and are in an "eight"-shaped structure with a wider opening facing the conveying direction; a first roller 42 and a second roller 43 are rotatably mounted at both ends of each support arm 41;

[0054] The first roller 42 and the second roller 43 are arranged with their axes vertically and connected by a straightening belt 44 wound around their outer sides, and a plurality of vertically arranged strip blocks 45 are provided on the straightening belt 44;

[0055] The first roller 42 or the second roller 43 is driven to rotate;

[0056] Specifically, for the convenience of description, the logistics box moves from right to left on the conveying component 10, and the front-to-back direction is defined as perpendicular to the conveying center, that is, Figure 1 As shown, the support arm 41 is located on the right side of the guide roller 31 and close to the conveying direction, and the multiple guide rollers 31 are symmetrically arranged front to back and located on both sides of the conveying center and arranged side by side left to right;

[0057] The conveying component 10 is configured to convey the logistics box. The conveying component 10 includes a support frame and conveying rollers arranged side by side on the support frame. The plurality of conveying rollers rotate in the same direction and at the same speed. As described above, the conveying component 10 may be a conventional structure and will not be further described here.

[0058] A plurality of guide rollers 31 are connected to the support platform 20 and are configured to guide the logistics box in a correct direction;

[0059] A pair of support arms 41 form an "eight"-shaped structure, with the wider opening facing right and the narrower opening facing left;

[0060] The first roller 42 is located at the left end of the support arm 41, and the second roller 43 is located at the right end of the support arm 41. The end side of the first roller 42 can be connected through a driving motor 46, so that the first roller 42 and the second roller 43 drive the alignment belt 44 to rotate;

[0061] When the logistics box conveying correction device is in use, the position of the guide roller 31 and the opening angle of the support arm 41 are adjusted so that the logistics box can be smoothly conveyed from right to left on the conveying component 10;

[0062] like Figure 2 , Figure 5 As shown, the logistics box first enters the correction component 40, that is, between a pair of support arms 41. When the logistics box is offset too much and one corner is facing the support arm 41 on one side, the correction belt 44 rotates, and the multiple strip blocks 45 on the correction belt 44 contact the logistics box in turn, and the corner of the logistics box is adjusted and corrected. As the logistics box is transported from right to left, the deviation angle of the logistics box is reduced;

[0063] The logistics box then enters between the guide rollers 31 arranged at the front and rear, and the guide rollers 31 guide the logistics box;

[0064] The logistics box conveying straightening device is deployed by a pair of support arms 41 to facilitate the entry of the logistics box. After the straightening belt 44 rotates, it drives the strip blocks 45 thereon to act on one side of the offset logistics box in turn, to straighten the logistics box and reduce the offset angle of the logistics box. The guide roller 31 is then used to guide and straighten the logistics box, so that the logistics box is straightened smoothly, avoiding damage to the logistics box during the straightening process.

[0065] In some examples of the present invention, Figure 2 , Figure 3 As shown, a torsion spring is provided at the rotation connection between the support arm 41 and the support platform 20;

[0066] Under the action of the torsion spring, the support arm 41 is subjected to torsion force toward the conveying center;

[0067] The two ends of the support rod component 50 are rotatably mounted on a pair of support arms 41, so that the pair of support arms 41 form a double rocker structure;

[0068] Specifically, the support arm 41 and the support platform 20 are rotatably connected to each other through a support shaft, and a torsion spring can be mounted on the support shaft, with one end connected to the support arm 41 and the other end connected to the support platform 20; under the action of the corresponding torsion spring, a pair of support arms 41 are subjected to torsion force toward the conveying center, and are limited by the support rod component 50 to maintain a corresponding balance;

[0069] A pair of support arms 41 and a support rod component 50 form a double rocker structure, such as Figure 2 , Figure 3 As shown, when one side of the offset logistics box contacts one of the support arms 41, that is, when the left front corner of the logistics box contacts the front support arm 41, the logistics box squeezes the front support arm 41 to make it rotate clockwise. Due to the double rocker structure, when the front support arm 41 rotates clockwise, the support arm 41 at the rear side is driven to rotate clockwise through the support rod component 50, that is, the rear support arm 41 can not only swing the right rear corner of the offset logistics box to make the logistics box initially corrected, but also limit the offset logistics box so that the logistics box can smoothly pass through a pair of support arms 41.

[0070] When the logistics box is aligned and passes through the support arm 41 and enters the guide roller 31, under the action of the corresponding torsion spring, the pair of support arms 41 and the support components maintain balanced force, that is, the pair of support arms 41 can be symmetrically arranged around the conveying center.

[0071] In some examples of the present invention, Figure 2 As shown, the support rod component 50 includes:

[0072] The first support rod 51 and the second support rod 52 are rotatably connected to the support arm 41 at both ends;

[0073] The sleeve 53 is installed on the first support rod 51 and the other end of the first support rod 51 with threads in opposite directions to each other;

[0074] Specifically, by rotating the sleeve 53, the first support rod 51 and the second support rod 52 can be moved closer to or farther away from each other. The purpose is to adjust the unfolding angle of the pair of support arms 41 by appropriately rotating the sleeve 53 when the pair of support arms 41 forms a double rocker structure to adapt to logistics boxes of different sizes.

[0075] In some examples of the present invention, Figure 5 As shown, one end of the first roller 42 or the second roller 43 is connected to a driving motor 46;

[0076] The support arm 41 is provided with a distance sensor 60 for detecting the distance of the transported logistics box;

[0077] The controller receives the signal from a pair of distance sensors 60 and controls the drive motor 46 to operate;

[0078] Specifically, the drive motor 46 may be a servo motor, the distance sensor 60 may be a laser sensor, the controller may be a PLC and connected to the control system of the conveyor line, and the controller controls the action of the drive motor 46, including the start and stop, forward and reverse rotation, etc. of the drive motor 46;

[0079] Initially, under the action of the torsion spring, a pair of support arms 41 are symmetrically arranged with respect to the conveying center, and the distance sensors 60 on the support arms 41 are also symmetrically arranged; when the offset logistics box passes through a pair of support arms 41, the distance sensors 60 on the corresponding support arms 41 detect the distance to the logistics box in real time. For example, support arms 41A and B, distance sensors 60A and B are defined, and the detection distance of distance sensor 60A is smaller than the detection distance of distance sensor 60B. The controller receives the corresponding signal and controls the drive motor 46 at the support arm 41A to start, driving the return belt 44 to rotate. The rotation direction of the return belt 44 close to the conveying center is consistent with the conveying direction. Figure 5 As shown, the front side return belt 44 rotates counterclockwise;

[0080] In this example, the distance of the passing logistics box is sensed by the distance sensor 60 on the support arm 41. When the difference in the detection distances of a pair of distance sensors 60 exceeds the set range, it indicates that the logistics box has shifted. The controller controls the drive motor 46 on the side with the smaller detection distance to start, so that the corresponding correction belt 44 automatically drives the offset logistics box to be corrected, which is more efficient.

[0081] In some examples of the present invention, Figure 6As shown, the guide roller 31 is rotatably mounted on the support block 32;

[0082] The support block 32 moves toward the conveying center and is locked and fixed;

[0083] Specifically, the guide roller 31 is rotatably mounted on the support block 32 through a bearing, and the end thereof can be limited and fixed by a locking nut 34 to ensure that the axis of the guide roller 31 is vertically located on the support block 32;

[0084] The support block 32 moves toward the conveying center and can be locked and fixed, the purpose of which is to facilitate the adjustment of the position of the guide roller 31, and the change in the position of the guide roller 31 can be suitable for logistics boxes of different sizes.

[0085] In the preferred embodiment, the support platform 20 is provided with a through hole;

[0086] One end of the support block 32 is slidably located on the through hole, and the locking rod 33 is threadedly installed on the support platform 20, with one end pressing on the support block 32;

[0087] In some examples of the present invention, Figure 5 As shown, the multiple guide rollers 31 close to the support arm 41 gradually approach the conveying center along the conveying direction, and the multiple guide rollers 31 away from the support arm 41 are parallel to each other and located on both sides of the conveying center;

[0088] Specifically, some of the right guide rollers 31 gradually approach the conveying center from right to left, and some of the left guide rollers 31 are arranged parallel to each other, so that when the logistics box first enters the right guide roller 31, the gradually retracted guide roller 31 allows the logistics box to be calibrated and corrected, and then positioned by the left guide roller 31;

[0089] As explained, the right guide roller 31 and the adjacent first roller 42 / second roller 43 on the support arm 41 transition smoothly to each other.

[0090] In some examples of the present utility model, the support platform 20 is mounted on a fixed frame by a lifting component;

[0091] The lifting component comprises:

[0092] A driving cylinder is connected to the fixed frame, and an output end is connected to the supporting platform 20;

[0093] A plurality of guide rods, the lower ends of which are fixedly connected to the support platform 20 and the upper ends of which slide through the fixing frame;

[0094] Specifically, the fixed frame is fixedly arranged, and the support platform 20 is moved up and down on the fixed frame by the lifting component, the purpose of which is to be able to adjust the height of the guide roller 31 and the support arm 41 to be suitable for logistics boxes of different heights;

[0095] For example, when the logistics box alignment function is not used, the lifting component drives the support platform 20 to move upward, so that the guide rollers 31 and the alignment belt 44 are located above the logistics box. When the logistics box is aligned, the height of the logistics box is judged, and the lifting component drives the support platform 20 to move downward to a suitable position, so that the guide rollers 31 and the alignment belt 44 can be located on the surrounding side of the logistics box.

[0096] In some examples of the present invention, Figure 1 As shown, the guide roller 31 is located between adjacent conveying rollers in the conveying component 10;

[0097] The strip block 45 is made of elastic material;

[0098] Specifically, the guide roller 31 is located between adjacent conveying rollers, so that the overall structure is compact and the guide roller 31 is prevented from interfering with the conveying roller during the descending process.

[0099] When the logistics box conveying alignment device is used, the lifting platform moves up and down to adjust the height to match the height of the logistics box, the guide roller 31 is adjusted toward the conveying center position and locked, and the support rod component 50 is telescopically adjusted to adjust the expansion angle of a pair of support arms 41 to match the width of the logistics box;

[0100] The offset logistics box first enters the correction component 40, that is, between a pair of support arms 41. On the one hand, due to the offset, one corner first contacts with a correction belt 44, and the correction belt 44 rotates and corrects the logistics box through the strip block 45 thereon. On the other hand, the logistics box causes a certain amount of compression on the correction belt 44, and the corresponding support arm 41 rotates relative to the support platform 20. Due to the double rocker structure, the support arm 41 on the other side can swing the other corner of the offset logistics box, limit the offset logistics box, and make the logistics box initially corrected, so as to ensure that the logistics box passes smoothly through the pair of support arms 41.

[0101] As the logistics box is transported, the offset angle of the logistics box is reduced. When the logistics box enters between multiple guide rollers 31 again, the guide rollers 31 complete the guidance and positioning of the logistics box.

[0102] The exemplary implementation of the straightening device for conveying logistics boxes proposed in the present invention is described in detail above with reference to the preferred embodiments. However, those skilled in the art will appreciate that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present invention can be combined in various ways without exceeding the protection scope of the present invention, which is determined by the appended claims.

Claims

1. A straightening device for transporting logistics boxes, characterized in that: include: A supporting platform (20) is located above the conveying component (10); A plurality of guide rollers (31) are rotatably located below the support platform (20) and are symmetrically arranged around the conveying center; The correction component (40) comprises: A pair of support arms (41) are rotatably located below the support platform (20) and form an "eight"-shaped structure with a wider opening facing the conveying direction; a first roller (42) and a second roller (43) are rotatably mounted on both ends of each support arm (41); The first roller (42) and the second roller (43) are arranged with their axes vertically and are connected by a correction belt (44) wound around their outer sides, and a plurality of vertically arranged strip blocks (45) are provided on the correction belt (44); The first roller (42) or the second roller (43) is driven to rotate.

2. The logistics box conveying correction device according to claim 1 is characterized in that: A torsion spring is provided at the rotation connection between the support arm (41) and the support platform (20); under the action of the torsion spring, the support arm (41) is subjected to torsion force toward the conveying center; The correction component (40) further comprises: The two ends of the support rod component (50) are rotatably mounted on a pair of support arms (41) so that the pair of support arms (41) form a double rocker structure.

3. The logistics box conveying correction device according to claim 2 is characterized in that: The support rod component (50) comprises: The first support rod (51) and the second support rod (52) are rotatably connected to the support arm (41) at both ends; The sleeve (53) is installed on the first support rod (51) and the other end of the first support rod (51) with threads in opposite directions to each other.

4. The logistics box conveying correction device according to claim 3 is characterized in that: One end of the first roller (42) or the second roller (43) is connected to a driving motor (46); The support arm (41) is provided with a distance sensor (60) for detecting the distance of the transported logistics box. The controller receives signals from a pair of distance sensors (60) and controls the drive motor (46) to operate.

5. The logistics box conveying straightening device according to any one of claims 1 to 4, characterized in that: The guide roller (31) is rotatably mounted on the support block (32); The support block (32) moves toward the conveying center and is locked and fixed.

6. The logistics box conveying correction device according to claim 5 is characterized in that: The supporting platform (20) is provided with a through hole; One end of the support block (32) is slidably located on the through hole, and the locking rod (33) is threadedly installed on the support platform (20) and one end is pressed against the support block (32).

7. The logistics box conveying correction device according to any one of claims 1 to 4, characterized in that: The plurality of guide rollers (31) close to the support arm (41) gradually approach the conveying center along the conveying direction, and the plurality of guide rollers (31) far from the support arm (41) are located parallel to each other on both sides of the conveying center.

8. The logistics box conveying straightening device according to any one of claims 1 to 4, characterized in that: The support platform (20) is installed on the fixed frame via a lifting component; The lifting component comprises: A driving cylinder connected to the fixing frame, with an output end connected to the supporting platform (20); A plurality of guide rods have lower ends fixedly connected to the support platform (20) and upper ends slidingly passing through the fixing frame.

9. The logistics box conveying straightening device according to any one of claims 1 to 4, characterized in that: The guide roller (31) is located between adjacent conveying rollers in the conveying component (10); The strip block (45) is made of elastic material.

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