Automatic carton cover closing device
By designing an automatic carton closing device with a compact structure driven by a cylinder, the automatic closing of cartons is achieved, solving the problems of high cost and low efficiency of existing devices. It is highly efficient, low-cost, and widely applicable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-24
AI Technical Summary
Existing carton closing devices are costly, bulky, and inefficient, failing to efficiently complete the carton closing operation.
Design an automatic carton closing device with a compact structure and cylinder drive, including a conveyor line, blocking components, a flange mechanism, a corner folding mechanism and a capping mechanism to achieve automatic carton closing.
It achieves a simple, fast, low-cost, and efficient carton closing process with wide applicability and compatibility with various carton models.
Smart Images
Figure CN224029304U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of product packaging technology, and in particular to an automatic carton closing device. Background Technology
[0002] Cardboard boxes are a primary material for commodity transportation packaging. They are lightweight, inexpensive, can be mass-produced in various sizes, and require little storage space before use, making them widely used in the packaging and transportation of finished products.
[0003] Carton closing technology is widely used in various fields, especially in the packaging industry. Currently, most carton packaging equipment on the market uses multi-station, step-by-step closing devices to complete the carton closing action, which is costly, bulky, and inefficient. Utility Model Content
[0004] The purpose of this utility model is to provide an automatic carton closing device, which is simple and fast, has a wide range of applications, a compact structure, low cost, and high efficiency, thereby improving work efficiency.
[0005] To achieve the above objectives, this utility model provides an automatic carton closing device for closing cartons. The carton includes a carton body and a top cover, comprising:
[0006] A conveyor line for conveying the cartons;
[0007] A blocking component is used to block cartons on the conveyor line so that the cartons stop at the lid-closing station;
[0008] A lid-closing assembly is used to close the carton at the lid-closing station. The lid-closing assembly includes a flange-flipping mechanism, a corner-folding mechanism, and a lid-pressing mechanism. The flange-flipping mechanism is used to flip the upper lid to the corner-folding station. The corner-folding mechanism is used to fold the far end of the upper lid at the corner-folding station. The lid-pressing mechanism is used to press the folded corner of the upper lid into the carton body and to press the upper lid tightly onto the carton body.
[0009] Optionally, the blocking assembly includes at least one block group and at least one first support group. The first support group includes two first supports disposed opposite to each other on both sides of the conveyor line. The block group includes two blocking cylinders and two blocks. The two blocking cylinders are respectively mounted on the two first supports and are used to drive the two blocks to move relative to each other or in opposite directions along the conveying direction perpendicular to the conveyor line.
[0010] Optionally, the number of stop groups is multiple and they are distributed at intervals along the conveying direction.
[0011] Optionally, the automatic carton closing device further includes a positioning detection component, which is used to detect whether the carton has reached the closing station.
[0012] Optionally, the flanging mechanism includes a support unit and a flanging unit. The support unit includes a first portal frame, a support rod, and a support cylinder. The first portal frame is mounted above the conveyor line. The support cylinder is mounted on the first portal frame and is used to drive the support rod to move along a conveying direction perpendicular to the conveyor line. The flanging unit includes a second bracket, a lever, and a flanging cylinder. The second bracket is located outside the conveyor line. The flanging cylinder is mounted on the second bracket and is used to drive the lever to rotate and cause the upper cover to flip and press against the support rod.
[0013] Optionally, the angle-folding mechanism includes a second portal frame, an angle-folding cylinder, and an angle-folding plate. The second portal frame is mounted above the conveyor line, and the angle-folding cylinder is mounted on the second portal frame and is used to drive the angle-folding plate to move vertically to fold the far end of the upper cover.
[0014] Optionally, the capping mechanism includes a guide unit and a capping unit. The guide unit is used to guide the folded corner into the carton, and the capping unit is used to press the top cover tightly onto the carton body.
[0015] Optionally, the guiding unit includes a third portal frame, a guiding cylinder, and a guiding plate. The third portal frame is mounted above the conveyor line. The guiding cylinder is mounted on the third portal frame and is used to drive the guiding plate to move so as to introduce the folded corner into the carton body. The pressing unit includes a fourth portal frame, a pressing cylinder, and a pressing plate. The fourth portal frame is mounted above the conveyor line. The pressing cylinder is mounted on the fourth portal frame and is used to drive the pressing plate to move vertically to press the upper cover tightly onto the carton body.
[0016] Optionally, the carton body also has folded edges on both sides, and the automatic carton closing device further includes a pressure rod assembly. The pressure rod assembly includes a fifth gate-shaped bracket and two pressure rods horizontally arranged on the fifth gate-shaped bracket. The fifth gate-shaped bracket is erected above the conveyor line, and the two pressure rods are arranged parallel to each other along the conveying direction of the conveyor line. The two pressure rods are used to press down on the folded edges on both sides of the carton body respectively.
[0017] Optionally, the automatic carton closing device further includes an edge pressing assembly, which is used to press the two side folds of the carton body before closing. The edge pressing assembly includes a sixth portal frame, two edge pressing cylinders and two edge pressing plates. The sixth portal frame is mounted above the conveyor line. The two edge pressing cylinders are symmetrically arranged on the two support arms of the sixth portal frame and are used to drive the two edge pressing plates to move relative to each other or in opposite directions along the conveying direction perpendicular to the conveyor line.
[0018] The automatic carton closing device provided by this utility model differs from ordinary carton closing devices in that it completes the carton closing process through a compact structure (one set of devices completes all actions), low cost (all drives are cylinders), high efficiency and compatibility (it is compatible with a variety of different carton models at the same time), and has reference value for the carton closing or carton packaging industry. Attached Figure Description
[0019] Those skilled in the art will understand that the accompanying drawings are provided to better understand the present invention and do not constitute any limitation on the scope of the present invention. Wherein:
[0020] Figure 1 This is an overall schematic diagram of an automatic carton closing device provided in an embodiment of the present invention;
[0021] Figure 2 This is a schematic diagram of the structure of a cardboard box after folding corners, provided in one embodiment of the present invention;
[0022] Figure 3 This is a schematic diagram of the structure of a lid assembly provided in an embodiment of the present invention;
[0023] Figure 4 This is a schematic diagram of the structure of a blocking component provided in an embodiment of the present invention;
[0024] Figure 5 This is a schematic diagram of the structure of the support unit and guide unit provided in an embodiment of the present invention;
[0025] Figure 6 This is a schematic diagram of the structure of a flange unit provided in an embodiment of the present invention;
[0026] Figure 7 This is a schematic diagram of the structure of the angle unit and the pressure cap unit provided in an embodiment of the present invention;
[0027] Figure 8 This is a schematic diagram of the structure of a pressing assembly provided in an embodiment of the present invention;
[0028] in:
[0029] 100-Carton; 110-Carton body; 111-Folding edge; 120-Top cover; 121-Corner fold; 200-Conveyor line; 300-Blocking assembly; 310-First bracket; 320-Blocking cylinder; 330-Stop block; 400-Covering assembly; 410-First portal frame bracket; 411-Support rod; 412-Support cylinder; 413-Second bracket; 414-Toggle lever; 415-Flanging cylinder; 420-Second portal frame bracket; 421-Corner folding cylinder; 422-Corner folding plate; 430-Guide cylinder; 431-Guide plate; 432-Covering cylinder; 433-Pressure plate; 500-Mirror reflection sensor; 610-Fifth portal frame bracket; 620-Pressure rod; 700-Edge pressing assembly; 710-Edge pressing cylinder; 720-Edge pressing plate. Detailed Implementation
[0030] To make the objectives, advantages, and features of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are in a very simplified form and use non-precise proportions, intended only to facilitate and clearly illustrate the purpose of the embodiments of this utility model. Please refer to the accompanying drawings for a clearer understanding of the objectives, features, and advantages of this utility model. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes and to enable those skilled in the art to understand and read the content disclosed in the specification. They are not intended to limit the implementation conditions of this utility model. Any modifications to the structure, changes in proportions, or adjustments to the size, provided they produce the same or similar effects and achieve the same objectives as this utility model, should still fall within the scope of the technical content disclosed in this utility model.
[0031] As used in this invention, the singular forms “a,” “an,” and “the” include plural objects unless otherwise expressly indicated. As used in this invention, the term “or” is generally used to include “and / or” unless otherwise expressly indicated. As used in this invention, the term “a number” is generally used to include “at least one” unless otherwise expressly indicated. As used in this invention, the term “at least two” is generally used to include “two or more” unless otherwise expressly indicated. Furthermore, the terms “first,” “second,” and “third” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first,” “second,” or “third” may explicitly or implicitly include one or at least two of that feature.
[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] Please refer to Figures 1-3 This embodiment provides an automatic carton closing device for closing a carton 100. The carton 100 includes a carton body 110 and a top cover 120. The automatic carton closing device includes:
[0034] Conveyor line 200 is used for conveying carton 100;
[0035] The blocking component 300 is used to block the carton 100 on the conveyor line 200 so that the carton 100 stops at the closing station;
[0036] The lid-closing assembly 400 is used to close the carton 100 in the lid-closing station. The lid-closing assembly 400 includes a flange-flipping mechanism, a corner-folding mechanism, and a pressing mechanism. The flange-flipping mechanism is used to flip the upper cover 120 to the corner-folding station. The corner-folding mechanism is used to fold the far end of the upper cover 120 in the corner-folding station. The pressing mechanism is used to press the folded corner of the upper cover 120 into the carton body 110 and to press the upper cover 120 tightly onto the carton body 110.
[0037] Specifically, the conveyor line 200 is, for example, a conveyor belt, used for conveying the carton 100. It can transport the carton 100 from the previous station to the current station, and after the carton 100 is closed, it can transport the carton 100 to the next station.
[0038] The blocking component 300 is used to block unclosed cartons 100 on the conveyor line 200, so that the unclosed cartons 100 remain at the closing station. Please refer to... Figure 4The blocking assembly 300 includes at least one block group and at least one first support group. The first support group includes two first supports 310 arranged opposite each other on both sides of the conveyor line 200. The block group includes two blocking cylinders 320 and two blocks 330. The two blocking cylinders 320 are respectively mounted on the two first supports 310 and are used to drive the two blocks 330 to move relative to each other or in opposite directions along a conveying direction perpendicular to the conveyor line 200. For example, before the carton 100 is closed, the two blocking cylinders 320 drive the two blocks 330 to move relative to each other along a conveying direction perpendicular to the conveyor line 200 to block the unclosed carton 100 on the conveyor line 200. After the carton 100 is closed, the two blocking cylinders 320 drive the two blocks 330 to move in opposite directions along a conveying direction perpendicular to the conveyor line 200 to release the obstruction of the closed carton 100, so that the closed carton 100 can be smoothly conveyed to the next station.
[0039] Preferably, there are multiple block groups distributed at intervals along the conveying direction. It should be noted that, since different models of cartons 100 have different lengths along the conveying direction of the conveyor line 200, at least two block groups can be arranged at intervals along the conveying direction to ensure that the automatic carton closing device can be applicable to the closing operation of different models of cartons 100. In this embodiment, there are two block groups, used to block the two models of cartons 100 respectively.
[0040] Preferably, the automatic carton closing device further includes a positioning detection component, which is used to detect whether the carton 100 has reached the closing position. In this embodiment, the positioning detection component includes two sets of mirror reflection sensors 500, which are used to detect the positioning of different models of carton 100. The mirror reflection sensor 500 is prior art and will not be described in detail in this application.
[0041] Please continue to refer to Figures 1-3 and combined Figures 5-6 The flanging mechanism includes a support unit and a flanging unit. The support unit includes a first portal frame 410, a support rod 411, and a support cylinder 412. The first portal frame 410 is mounted above the conveyor line 200. The support cylinder 412 is mounted on the first portal frame 410 and is used to drive the support rod 411 to move in a direction perpendicular to the conveyor line 200. The flanging unit includes a second support 413, a lever 414, and a flanging cylinder 415. The second support 413 is located outside the conveyor line 200. The flanging cylinder 415 is mounted on the second support 413 and is used to drive the lever 414 to rotate and cause the upper cover 120 to flip and press against the support rod 411.
[0042] In this embodiment, the support unit can be used to limit the flange and corner of the carton 100. Specifically, there are two support rods 411 symmetrically arranged about the center line of the carton 100. There can be one or two support cylinders 412, which are used to drive the two support rods 411 to move relative to each other or in opposite directions along the conveying direction perpendicular to the conveyor line 200. Before the carton 100 is closed, the support cylinders 412 drive the two support rods 411 to move relative to each other along the conveying direction perpendicular to the conveyor line 200. When the carton 100 reaches the closing position, the flipping cylinder 415 can drive the lever 414 to rotate and drive the upper cover 120 to flip and press against the support rods 411. After the subsequent corner folding operation is completed and the corner fold 121 is introduced into the carton body 110, and before the upper cover 120 is pressed and closed, the support cylinders 412 drive the two support rods 411 to move in opposite directions along the conveying direction perpendicular to the conveyor line 200 to avoid the support rods 411 obstructing the downward pressure of the upper cover 120.
[0043] Please refer to Figure 3 and combined Figure 7 The folding mechanism includes a second portal frame 420, a folding cylinder 421, and a folding plate 422. The second portal frame 420 is mounted above the conveyor line 200. The folding cylinder 421 is mounted on the second portal frame 420 and is used to drive the folding plate 422 to move vertically to fold the distal end of the upper cover 120 at an angle 121. It should be noted that the "distal end" mentioned here should be understood as the end of the upper cover 120 that is away from the carton body 110 before it is closed. When the folding cylinder 421 drives the folding plate 422 to move vertically to fold the distal end of the upper cover 120 at an angle 121, the upper cover 120 is pressed against the support rod 411. The folding plate 422 presses down to form an angle 121 at the distal end of the upper cover 120.
[0044] Please refer to Figure 3 The capping mechanism includes a guide unit and a capping unit. The guide unit is used to guide the folded corner 121 into the carton 100 so that the subsequent capping unit can smoothly press the folded corner 121 completely into the carton 100, similar to the action of a person inserting the bottom of a shirt into the waistband of their pants. The capping unit is used to press the top cover 120 tightly onto the carton body 110 to complete the entire capping operation.
[0045] For specific details, please refer to... Figure 5 and Figure 7The guiding unit includes a third portal frame, a guide cylinder 430, and a guide plate 431. The third portal frame is mounted above the conveyor line 200. The guide cylinder 430 is mounted on the third portal frame and is used to drive the guide plate 431 to move so as to introduce the fold 121 into the carton body 110. The sealing unit includes a fourth portal frame, a sealing cylinder 432, and a pressure plate 433. The fourth portal frame is mounted above the conveyor line 200. The sealing cylinder 432 is mounted on the fourth portal frame and is used to drive the pressure plate 433 to move vertically to press the upper cover 120 onto the carton body 110.
[0046] In this embodiment, the third portal bracket and the first portal bracket 410 share a portal bracket, and the fourth portal bracket and the second portal bracket 420 share a portal bracket.
[0047] Optionally, the carton body 110 also has folded edges 111 on both sides. The automatic carton closing device also includes a pressure rod assembly, which includes a fifth portal frame 610 and two pressure rods 620 horizontally arranged on the fifth portal frame 610. The fifth portal frame 610 is mounted above the conveyor line 200, and the two pressure rods 620 are arranged parallel to each other along the conveying direction of the conveyor line 200. The two pressure rods 620 are used to press down the folded edges 111 on both sides of the carton body 110 respectively. The pressure rod assembly is used to press the folded edges 111 on both sides of the carton body 110. In this embodiment, the folded edges 111 on both sides of the carton body 110 have been flattened and the internal product has been secured in the previous station. Before the carton body 110 is closed, the folded edges 111 on both sides need to be pressed down continuously to prevent the folded edges 111 from loosening, failing to secure the product, and affecting the subsequent closing operation.
[0048] For further details, please refer to Figure 8 The automatic carton closing device also includes a pressing assembly 700, which is used to press the two side folds 111 of the carton body 110 before closing. The pressing assembly 700 includes a sixth portal frame, two pressing cylinders 710 and two pressing plates 720. The sixth portal frame is mounted above the conveyor line 200. The two pressing cylinders 710 are symmetrically arranged on the two support arms of the sixth portal frame and are used to drive the two pressing plates 720 to move relative to each other or in opposite directions along the conveying direction perpendicular to the conveyor line 200.
[0049] In this embodiment, the sixth gate-type bracket shares a gate-type bracket with the first gate-type bracket 410 and the third gate-type bracket. When the carton 100 reaches the closing position, the pressure bar assembly can no longer press the two side folds 111 of the carton body 110. At this time, the edge pressing assembly 700 takes over to ensure that the two side folds 111 can be pressed down before the lid is closed.
[0050] The working process of the automatic carton closing device provided in this embodiment is as follows:
[0051] The unclosed carton 100 is conveyed from the previous station via the conveyor line 200 (at this time, the two side folds 111 of the carton 100 have been flattened and the product is held in place by the pressure bar assembly). When the carton 100 arrives at the closing station, the blocking assembly 300 stops the carton 100, and at the same time, the arrival detection assembly detects that the carton 100 has arrived, and the pressure bar assembly presses the two side folds 111 of the carton 100.
[0052] The flange cylinder 415 drives the lever 414 to rotate, which in turn causes the upper cover 120 to flip and press against the support rod 411.
[0053] Angle-bending cylinder 421 drives angle-bending plate 422 to move vertically to bend the far end of the upper cover 120.
[0054] The guide cylinder 430 drives the guide plate 431 to move downward to introduce the fold 121 into the carton body 110;
[0055] The support cylinder 412 drives the two support rods 411 to move in opposite directions, and drives the pressing cylinder 710 to drive the two pressing plates 720 to move in opposite directions. The cover cylinder 432 extends and drives the pressing plate 433 to press down so that the upper cover 120 is fully inserted into the carton 100 along the guide plate 431, and the upper cover 120 is pressed and closed on the carton body 110, thereby completing the entire closing operation.
[0056] In summary, this utility model provides an automatic carton closing device. Unlike ordinary carton closing devices, it achieves carton closing through a compact structure (one set of devices completes all actions), lower cost (all drives are cylinders), higher efficiency and compatibility (simultaneously compatible with multiple different carton models). It has reference value for the carton closing and packaging industry.
[0057] Furthermore, it should be understood that although the present invention has been disclosed above with reference to preferred embodiments, these embodiments are not intended to limit the present invention. For any person skilled in the art, many possible variations and modifications can be made to the present invention's technical solutions using the disclosed technical content, or equivalent embodiments can be modified accordingly, without departing from the scope of the present invention's technical solutions. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention's technical solutions, shall still fall within the protection scope of the present invention's technical solutions.
Claims
1. An automatic carton closing device for closing a carton, the carton comprising a carton body and a top cover, characterized in that, include: A conveyor line for conveying the cartons; A blocking component is used to block cartons on the conveyor line so that the cartons stop at the lid-closing station; A lid-closing assembly is used to close the carton at the lid-closing station. The lid-closing assembly includes a flange-flipping mechanism, a corner-folding mechanism, and a lid-pressing mechanism. The flange-flipping mechanism is used to flip the upper lid to the corner-folding station. The corner-folding mechanism is used to fold the far end of the upper lid at the corner-folding station. The lid-pressing mechanism is used to press the folded corner of the upper lid into the carton body and to press the upper lid tightly onto the carton body.
2. The automatic carton closing device according to claim 1, characterized in that, The blocking assembly includes at least one block group and at least one first support group. The first support group includes two first supports arranged opposite to each other on both sides of the conveyor line. The block group includes two blocking cylinders and two blocks. The two blocking cylinders are respectively mounted on the two first supports and are used to drive the two blocks to move relative to each other or in opposite directions along the conveying direction perpendicular to the conveyor line.
3. The automatic carton closing device according to claim 2, characterized in that, The number of stop blocks is multiple and they are distributed at intervals along the conveying direction.
4. The automatic carton closing device according to claim 1, characterized in that, The automatic carton closing device also includes a positioning detection component, which is used to detect whether the carton has reached the closing station.
5. The automatic carton closing device according to claim 1, characterized in that, The flanging mechanism includes a support unit and a flanging unit. The support unit includes a first portal frame, a support rod, and a support cylinder. The first portal frame is mounted above the conveyor line. The support cylinder is mounted on the first portal frame and is used to drive the support rod to move along a conveying direction perpendicular to the conveyor line. The flanging unit includes a second frame, a lever, and a flanging cylinder. The second frame is located outside the conveyor line. The flanging cylinder is mounted on the second frame and is used to drive the lever to rotate and cause the upper cover to flip and press against the support rod.
6. The automatic carton closing device according to claim 1, characterized in that, The angle-folding mechanism includes a second portal frame, an angle-folding cylinder, and an angle-folding plate. The second portal frame is mounted above the conveyor line, and the angle-folding cylinder is mounted on the second portal frame and is used to drive the angle-folding plate to move vertically to fold the far end of the upper cover.
7. The automatic carton closing device according to claim 1, characterized in that, The capping mechanism includes a guide unit and a capping unit. The guide unit is used to guide the folded corner into the carton, and the capping unit is used to press the top cover tightly onto the carton body.
8. The automatic carton closing device according to claim 7, characterized in that, The guiding unit includes a third portal frame, a guiding cylinder, and a guiding plate. The third portal frame is mounted above the conveyor line. The guiding cylinder is mounted on the third portal frame and is used to drive the guiding plate to move so as to introduce the folded corner into the carton body. The pressing unit includes a fourth portal frame, a pressing cylinder, and a pressing plate. The fourth portal frame is mounted above the conveyor line. The pressing cylinder is mounted on the fourth portal frame and is used to drive the pressing plate to move vertically to press the upper cover tightly onto the carton body.
9. The automatic carton closing device according to claim 1, characterized in that, The carton body also has folded edges on both sides. The automatic carton closing device also includes a pressure rod assembly. The pressure rod assembly includes a fifth gate-shaped bracket and two pressure rods horizontally arranged on the fifth gate-shaped bracket. The fifth gate-shaped bracket is erected above the conveyor line. The two pressure rods are arranged parallel to each other along the conveying direction of the conveyor line. The two pressure rods are used to press down on the folded edges on both sides of the carton body respectively.
10. The automatic carton closing device according to claim 9, characterized in that, The automatic carton closing device also includes an edge pressing assembly, which is used to press the two side folds of the carton body before closing. The edge pressing assembly includes a sixth portal frame, two edge pressing cylinders and two edge pressing plates. The sixth portal frame is mounted above the conveyor line. The two edge pressing cylinders are symmetrically arranged on the two support arms of the sixth portal frame and are used to drive the two edge pressing plates to move relative to each other or in opposite directions along the conveying direction perpendicular to the conveyor line.