Automatic box taking and opening mechanism

Abstract

The utility model discloses an automatic carton taking and opening mechanism which is used for unfolding paperboards folded into a plane into a three-dimensional carton and comprises a sliding block reciprocating between a first position and a second position, a support is arranged on the sliding block, and a first side plate fixedly connected with the support and a second side plate movably connected with the support are arranged on the support. The first side plate and the second side plate are each provided with a suction cup used for sucking cartons. A connecting rod mechanism and an air cylinder are arranged on the support, the output end of the air cylinder is connected with the connecting rod mechanism, the output end of the connecting rod mechanism is connected with the second side plate, the connecting rod mechanism drives the second side plate to move between the suction position and the unfolding position under driving of the air cylinder, and the second side plate and the first side plate are located on the same plane when the second side plate is located at the suction position. In the unfolding position, the second side plate is perpendicular to the first side plate. In the process of moving from the suction position to the unfolding position, the carton which is folded into a flat plate shape is gradually unfolded into a three-dimensional shape, and box opening is conveniently and reliably achieved.

Description

Technical Field

[0001] This utility model relates to the field of carton opening technology, and in particular to an automatic carton opening mechanism. Background Technology

[0002] Automatic packaging equipment using cardboard boxes needs to unfold the folded cardboard boxes into a three-dimensional shape during the packaging process. This is usually done using an automatic box-opening mechanism.

[0003] Currently, the automatic carton opening mechanism used in vertical carton opening systems involves placing the cardboard vertically, using suction cups to hold a single plane of the carton board, and then moving it forward. The mechanical guiding mechanism of the equipment unfolds the carton, and then the bottom of the carton needs to be sealed immediately to prevent the carton from turning back into cardboard, thus realizing the carton board opening operation.

[0004] The existing vertical box opening mechanism uses suction cups to hold a single plane of the cardboard and relies on mechanical structure for guiding the box opening. Due to factors such as the thickness and dimensional accuracy of the cardboard, the cardboard is prone to not fully unfolding. Moreover, the unfolded cardboard is easily deformed by external forces, which is not conducive to using the mechanism to grasp the side of the cardboard for nested packing. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this utility model is to provide an automatic carton opening mechanism that allows the carton to be fully unfolded without deformation.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic carton-opening mechanism is disclosed for unfolding flat cardboard into a three-dimensional carton. The mechanism includes a slider that reciprocates between a first position and a second position. A support is mounted on the slider. The support has a first side plate fixedly connected to the support and a second side plate movably connected to the support. Both the first and second side plates are equipped with suction cups for picking up the carton. A linkage mechanism and a cylinder are mounted on the support. The output end of the cylinder is connected to the linkage mechanism, and the output end of the linkage mechanism is connected to the second side plate. Driven by the cylinder, the linkage mechanism moves the second side plate between the picking position and the unfolding position. In the picking position, the second side plate and the first side plate are on the same plane; in the unfolding position, the second side plate is perpendicular to the first side plate.

[0008] Preferably, the linkage mechanism includes a drive link, a pair of parallel first links, and a pair of parallel second links. The first links are provided with a first rotating shaft, a second rotating shaft, and a third rotating shaft at intervals. The first links are rotatably connected to the bracket at the first rotating shaft. The second links are rotatably connected to the first links at the second rotating shaft and the third rotating shaft, respectively, and together with the first links, they form a parallelogram mechanism. The ends of the two second links away from the first links are provided with mounting parts, and the second side plates are connected to the mounting parts.

[0009] Preferably, the bracket is provided with a first adjusting member, the mounting member is provided with a second adjusting member, and both the first and second adjusting members are provided with a plurality of adjusting holes arranged at intervals along the vertical direction. The first side plate and the second side plate are respectively connected to the first adjusting member and the second adjusting member through the adjusting holes.

[0010] Preferably, both the first and second side plates are provided with transverse elongated holes, and the suction cup is connected to the elongated holes and its position can be adjusted along the direction of the elongated holes.

[0011] Preferably, the bracket is provided with a fixing member connected to the first adjusting member, the cylinder body of the cylinder is rotatably connected to the fixing member, one end of the driving connecting rod is rotatably connected to the push rod of the cylinder, and the other end is fixedly connected to the first connecting rod.

[0012] Preferably, the slide includes two parallel guide rails, the slider is slidably connected to the guide rails, a synchronous belt is provided between the two guide rails, the synchronous belt is driven by a servo motor, and the slider is connected to the synchronous belt.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] This utility model's automatic carton retrieval and opening mechanism includes a slider that reciprocates between a first position and a second position. A support is mounted on the slider, and the support has a first side plate fixedly connected to the support and a second side plate movably connected to the support. Both the first and second side plates are equipped with suction cups for picking up cartons. A linkage mechanism and a cylinder are mounted on the support. The output end of the cylinder is connected to the linkage mechanism, and the output end of the linkage mechanism is connected to the second side plate. Driven by the cylinder, the linkage mechanism moves the second side plate between the pick-up position and the unfolded position. In the pick-up position, the second side plate and the first side plate are on the same plane; in the unfolded position, the second side plate is perpendicular to the first side plate. During the movement from the pick-up position to the unfolded position, the flat carton gradually unfolds into a three-dimensional shape, preventing it from easily springing back. There is no need to immediately seal one end of the carton, and since no other mechanism directly contacts the carton board, it does not deform, thus conveniently and reliably achieving the unfolding of the carton. Attached Figure Description

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0016] Appendix Figure 1 This is a perspective view of the automatic box-retrieving and opening mechanism of this utility model;

[0017] Appendix Figure 2 This is a perspective view of the automatic box-retrieving and opening mechanism of this utility model at the suction position;

[0018] Appendix Figure 3 This is a perspective view of the automatic box-retrieving and opening mechanism of this utility model in its unfolded position.

[0019] The components are as follows: 1. Slider; 2. Bracket; 3. First side plate; 31. Elongated hole; 4. Second side plate; 5. Suction cup; 6. Linkage mechanism; 61. First connecting rod; 611. First rotating shaft; 612. Second rotating shaft; 613. Third rotating shaft; 62. Second connecting rod; 63. Drive connecting rod; 64. Mounting component; 7. Cylinder; 8. First adjusting component; 81. Adjusting hole; 9. Second adjusting component; 10. Fixing component; 11. Guide rail; 12. Synchronous belt; 13. Servo motor; 14. Carton. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0021] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] As attached Figure 1The diagram shows the automatic carton opening mechanism of this utility model, used to unfold flat cardboard into a three-dimensional carton 14. It includes a slider 1 that reciprocates between a first position and a second position. A support 2 extending outwards is connected to the slider 1. The support 2 has a first side plate 3 fixedly connected to the support 2 and a second side plate 4 movably connected to the support 2. Suction cups 5 for picking up the carton 14 are installed on both the first side plate 3 and the second side plate 4. A linkage mechanism 6 and a cylinder 7 are installed on the support 2. The output end of the cylinder 7 is connected to the linkage mechanism 6, and the output end of the linkage mechanism 6 is connected to the second side plate 4. Driven by the cylinder 7, the linkage mechanism 6 moves the second side plate 4 between the picking position and the unfolding position. (See attached diagram) Figure 2 As shown, when in the suction position, the second side plate 4 and the first side plate 3 are on the same plane with a small gap, which is just enough to suction the unfurled cardboard. Figure 3 As shown, when in the unfolded position, the second side plate 4 is perpendicular to the first side plate 3. During the process of moving from the suction position to the unfolded position, the flat cardboard box gradually unfolds into a three-dimensional shape.

[0023] The linkage mechanism 6 includes a drive link 63, a pair of parallel first links 61, and a pair of parallel second links 62. The first links 61 are sequentially spaced with a first rotating shaft 611, a second rotating shaft 612, and a third rotating shaft 613. The first links 61 are horizontally rotatably connected to the bracket 2 at the first rotating shaft 611. The second links 62 are rotatably connected to the first links 61 at the second rotating shaft 612 and the third rotating shaft 613, respectively, and form a parallelogram mechanism with the first links 61. The ends of the two second links 62 away from the first links 61 are connected to mounting parts 64, and the second side plate 4 is connected to the mounting parts 64.

[0024] A first adjusting member 8 is installed on the bracket 2, and a second adjusting member 9 is connected to the mounting member 64. Both the first adjusting member 8 and the second adjusting member 9 have several vertically spaced adjusting holes 81. The first side plate 3 and the second side plate 4 are connected to the first adjusting member 8 and the second adjusting member 9 respectively through the adjusting holes 81. Both the first side plate 3 and the second side plate 4 have transverse elongated holes 31. Suction cups 5 are connected to the elongated holes 31 and can be adjusted along the direction of the elongated holes 31 to accommodate cartons 14 of different sizes. Two suction cups 5 are installed on the first side plate 3 and the second side plate 4 respectively to ensure balanced force on the carton 14.

[0025] A fixing member 10 connected to the first adjusting member 8 is installed on the bracket 2. The cylinder body of the cylinder 7 is rotatably connected to the fixing member 10. One end of the driving connecting rod 63 is rotatably connected to the push rod of the cylinder 7, and the other end is fixedly connected to the first connecting rod 61. When the cylinder 7 moves, it pushes the connecting rod mechanism 6 to move. The installation position of the cylinder 7 utilizes the original structure, saves space, reduces redundant structures, and makes the opening mechanism simpler and more practical.

[0026] The unpacking mechanism also includes two parallel guide rails 11, with the slider 1 slidably connected to the guide rails 11. A parallel synchronous belt 12 is installed between the two guide rails 11, driven by a servo motor 13. The slider 1 is connected to the synchronous belt 12 and moves along the guide rails 11 under the drive of the synchronous belt 12. The suction cup picks up the carton board from the first position and completes the unfolding action of the carton while moving to the second position, thus improving work efficiency.

[0027] This utility model's automatic carton opening mechanism uses a four-bar linkage with a large-angle deformation to move a second side plate equipped with suction cups. A cylinder and drive linkage change the direction, converting the tilt angle of the four-bar linkage's inclined side into a parallel angle for easier cardboard box pickup. As the four-bar linkage completes the angle change, the suction cups on both sides of the cardboard box gradually separate, opening the box. This opening method, achieved by suction cups adhering to adjacent sides of the cardboard box, prevents the box from springing back and eliminates the need to immediately seal one end of the box. Furthermore, since no other mechanism directly contacts the cardboard box, deformation is prevented. Additionally, because the suction cup position is adjustable, this opening method is unaffected by cardboard thickness or dimensional accuracy, ensuring the box opens completely.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic box-opening mechanism for unfolding flat cardboard into a three-dimensional carton, characterized in that: The device includes a slider that reciprocates between a first position and a second position. A support is mounted on the slider. The support has a first side plate fixedly connected to the support and a second side plate movably connected to the support. Both the first and second side plates are equipped with suction cups for picking up cartons. The support is equipped with a linkage mechanism and a cylinder. The output end of the cylinder is connected to the linkage mechanism, and the output end of the linkage mechanism is connected to the second side plate. Driven by the cylinder, the linkage mechanism moves the second side plate between a picking position and an unfolding position. In the picking position, the second side plate and the first side plate are on the same plane; in the unfolding position, the second side plate is perpendicular to the first side plate.

2. The automatic box-opening mechanism according to claim 1, characterized in that: The linkage mechanism includes a drive link, a pair of parallel first links, and a pair of parallel second links. The first links are provided with a first rotating shaft, a second rotating shaft, and a third rotating shaft at intervals. The first links are rotatably connected to the bracket at the first rotating shaft. The second links are rotatably connected to the first links at the second rotating shaft and the third rotating shaft, respectively, and together with the first links, they form a parallelogram mechanism. The ends of the two second links away from the first links are provided with mounting parts, and the second side plates are connected to the mounting parts.

3. The automatic box-opening mechanism according to claim 2, characterized in that: The bracket is provided with a first adjusting member, and the mounting member is provided with a second adjusting member. Both the first and second adjusting members are provided with a plurality of adjusting holes arranged at intervals along the vertical direction. The first side plate and the second side plate are respectively connected to the first adjusting member and the second adjusting member through the adjusting holes.

4. The automatic box-opening mechanism according to claim 3, characterized in that: Both the first and second side plates are provided with transverse elongated holes, and the suction cup is connected to the elongated holes and its position can be adjusted along the direction of the elongated holes.

5. The automatic box-opening mechanism according to claim 3, characterized in that: The bracket is provided with a fixing member connected to the first adjusting member. The cylinder body of the cylinder is rotatably connected to the fixing member. One end of the driving connecting rod is rotatably connected to the push rod of the cylinder, and the other end is fixedly connected to the first connecting rod.

6. The automatic box-opening mechanism according to claim 1, characterized in that: It includes two parallel guide rails, the slider is slidably connected to the guide rails, a synchronous belt is provided between the two guide rails, the synchronous belt is driven by a servo motor, and the slider is connected to the synchronous belt.

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