A folding device for carton production

The folding structure driven by a hydraulic cylinder and the guide telescopic component solves the problem of insufficient contact area between the bending plate and the carton, ensuring that the carton folding is fully formed and improving the quality of carton production.

CN224465379UActive Publication Date: 2026-07-07TYSAN PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TYSAN PACKAGING CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In existing cardboard box production equipment, the contact area between the bending plate and the cardboard box is insufficient, resulting in incomplete folding and affecting the quality of cardboard box production.

Method used

The folding structure, which adopts a guide telescopic component and a hydraulic cylinder drive, allows for a larger angle of rotation of the folding plate through the cooperation of the guide plate and the vertical connecting plate. This ensures that the folding plate has sufficient contact area with the carton and provides support and shaping through the support plate.

Benefits of technology

This achieves complete shaping of the cardboard box folds, improving the quality of cardboard box production.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224465379U_ABST
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Abstract

The utility model relates to carton production technical field discloses a kind of flanging device for carton production, including bottom plate, bracket and box plate support assembly are fixedly installed on the bottom plate upper surface, the bracket surface is fixedly installed with four electric telescopic rods.The flanging device for carton production, guiding plate, flanging plate movement can be driven by first hydraulic cylinder drive connecting plate, the guiding telescopic component between guiding plate and vertical connecting plate makes vertical connecting plate can move within a certain range to drive complete greater angle overturning, ensure that flanging plate has enough contact area with carton, make carton flanging forming more thoroughly, second hydraulic cylinder output end is fixedly installed with support plate, support plate lower surface is equipped with support side plate, can be supported and supported to carton when flanging, with the cooperation of flanging plate, it is favorable to the setting of carton after flanging, effectively improve the production quality of carton.
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Description

Technical Field

[0001] This utility model relates to the field of cardboard box production technology, specifically a folding device for cardboard box production. Background Technology

[0002] Cardboard boxes are packaging containers made of paper materials and are widely used in the transportation, storage and sales of goods. The folding device in cardboard box production is a device used to fold the edges of cardboard during the cardboard box production process. It aims to achieve automated and precise folding of the edges of cardboard boxes to meet the packaging needs of cardboard boxes of different sizes and shapes.

[0003] Publication No. CN221392490U discloses a carton folding device. This patent addresses the shortcomings of existing folding devices that use a U-shaped plate to press the two sides of the carton from above. When the U-shaped plate descends to press, the force is mainly concentrated on the inner edge of the carton, making it difficult to effectively apply force to the outer edge, resulting in incomplete folding. This invention improves upon these devices by using a hydraulic rod to drive a connecting rod downwards, causing the bending plate to slide along the outer side of the trapezoidal platform. Simultaneously, an electric telescopic rod adjusts the rotation angle of the bending plate around the movable sleeve, achieving more precise folding control.

[0004] However, since the length of the connecting rod is fixed, when the electric telescopic rod is fully extended, it cannot continue to drive the bending plate to complete a larger angle of rotation due to the fixed length of the connecting rod. This results in insufficient contact area between the bending plate and the carton, making the carton folding not thorough enough and affecting the production quality of the carton. Therefore, a folding device for carton production is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a folding device for carton production, which has the advantage of good folding effect and solves the problem that insufficient contact area between the bending plate and the carton in existing folding devices results in incomplete folding and affects the quality of carton production.

[0006] To achieve the above-mentioned good folding effect, this utility model provides the following technical solution: a folding device for carton production, including a base plate, a bracket and a carton support assembly are fixedly installed on the upper surface of the base plate, four electric telescopic rods are fixedly installed on the surface of the bracket, a lower pressure plate is fixedly installed at the output end of the electric telescopic rod, and a folding structure is provided on the lower pressure plate;

[0007] The folding structure includes a first hydraulic cylinder fixedly installed on the upper surface of the lower pressure plate, a connecting plate fixedly installed at the output end of the first hydraulic cylinder, four guide plates fixedly installed on the surface of the connecting plate, four folding plates rotatably installed on the surface of the connecting plate, a vertical connecting plate slidably installed on the lower surface of the guide plate, one side of the vertical connecting plate being rotatably connected to the folding plate, and a guide telescopic assembly provided between the guide plate and the vertical connecting plate.

[0008] Furthermore, the box plate support assembly includes four second hydraulic cylinders fixedly installed on the upper surface of the base plate, with a support plate fixedly installed at the output end of the second hydraulic cylinder, and four support side plates fixedly installed on the lower surface of the support plate.

[0009] Furthermore, the guide telescopic assembly includes two strip grooves formed on the lower surface of the guide plate. A sliding rod is fixedly installed inside the strip groove. A spring and a connecting sleeve are sleeved on the surface of the sliding rod. One end of the spring is fixedly connected to the inside of the strip groove, and the other end is fixedly connected to the connecting sleeve. The vertical connecting plate is fixedly connected to the connecting sleeve.

[0010] Furthermore, the lower pressure plate is located directly above the support plate.

[0011] Compared with the prior art, this utility model provides a folding device for carton production, which has the following advantages:

[0012] This folding device for carton production uses a first hydraulic cylinder to drive a connecting plate, which in turn moves a guide plate and a folding plate. A guide telescopic assembly between the guide plate and the vertical connecting plate allows the vertical connecting plate to move within a certain range, enabling a larger angle of rotation. This ensures sufficient contact area between the folding plate and the carton, resulting in a more thorough folding. A support plate is fixedly installed at the output end of the second hydraulic cylinder. The lower surface of the support plate has a support side plate, which supports the carton during folding. The cooperation of the folding plate facilitates the shaping of the folded carton, effectively improving the production quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of this utility model;

[0016] In the diagram: 1. Base plate; 2. Bracket; 3. Box panel support assembly; 4. Electric telescopic rod; 5. Lower pressure plate; 6. Folded edge structure; 61. First hydraulic cylinder; 62. Connecting plate; 63. Guide plate; 64. Folded edge plate; 65. Vertical connecting plate; 7. Guide telescopic assembly; 31. Second hydraulic cylinder; 32. Support plate; 33. Supporting side plate; 71. Strip groove; 72. Slide rod; 73. Spring; 74. Connecting sleeve. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 In this embodiment, a folding device for carton production includes a base plate 1. A bracket 2 and a carton support assembly 3 are fixedly installed on the upper surface of the base plate 1. Four electric telescopic rods 4 are fixedly installed on the surface of the bracket 2. A lower pressure plate 5 is fixedly installed at the output end of the electric telescopic rods 4. A folding structure 6 is provided on the lower pressure plate 5.

[0019] The folding structure 6 includes a first hydraulic cylinder 61 fixedly installed on the upper surface of the lower pressure plate 5. A connecting plate 62 is fixedly installed at the output end of the first hydraulic cylinder 61. Four guide plates 63 are fixedly installed on the surface of the connecting plate 62. Four folding plates 64 are rotatably installed on the surface of the connecting plate 62. A vertical connecting plate 65 is slidably installed on the lower surface of the guide plate 63. One side of the vertical connecting plate 65 is rotatably connected to the folding plate 64. A guide telescopic assembly 7 is provided between the guide plate 63 and the vertical connecting plate 65.

[0020] In this embodiment, the carton support assembly 3 includes four second hydraulic cylinders 31 fixedly installed on the upper surface of the base plate 1. A support plate 32 is fixedly installed at the output end of the second hydraulic cylinder 31. Four support side plates 33 are fixedly installed on the lower surface of the support plate 32, which facilitates the cooperation with the folding plate 64 to achieve the folding and shaping of the carton.

[0021] In this embodiment, the guide telescopic assembly 7 includes two strip grooves 71 formed on the lower surface of the guide plate 63. A slide rod 72 is fixedly installed inside the strip groove 71. A spring 73 and a connecting sleeve 74 are sleeved on the surface of the slide rod 72. One end of the spring 73 is fixedly connected to the inside of the strip groove 71 and the other end is fixedly connected to the connecting sleeve 74. The vertical connecting plate 65 is fixedly connected to the connecting sleeve 74, so that the vertical connecting plate 65 can be displaced, which facilitates the flipping of the folded edge plate 64.

[0022] In this embodiment, the lower pressure plate 5 is located directly above the support plate 32.

[0023] The working principle of the above embodiments is as follows:

[0024] Place the carton to be folded on the support plate 32, activate the electric telescopic rods 4, and all four electric telescopic rods 4 extend synchronously, pushing the lower pressure plate 5 downward until the lower surface of the lower pressure plate 5 contacts the carton and fixes the carton's position. Then activate the first hydraulic cylinder 61, which drives the connecting plate 62 downward, thereby driving the four guide plates 63 to move downward together. As the guide plates 63 move downward, the vertical connecting plate 65 can move along the strip groove 71 under the action of the guide telescopic assembly 7. Since one side of the vertical connecting plate 65 is adjacent to the folding plate 64... The rotational connection causes the vertical connecting plate 65 to rotate around its connection point with the connecting plate 62, allowing the folding plate 64 to rotate at a larger angle. As the lower pressure plate 5 continues to press down, the folding plate 64, in conjunction with the supporting side plate 33, gradually folds the edges of the carton, ensuring thorough folding. After folding, the output end of the first hydraulic cylinder 61 retracts, moving the connecting plate 62, guide plate 63, folding plate 64, vertical connecting plate 65, and other components of the folding structure 6 upwards to reset. Then, the electric telescopic rod 4 retracts, moving the lower pressure plate 5 upwards back to its initial position. Finally, the folded carton is removed from the supporting plate 32, restoring the entire folding device to its initial state, ready for the next folding operation.

[0025] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A folding device for carton production, comprising a base plate (1), wherein a bracket (2) and a carton support assembly (3) are fixedly mounted on the upper surface of the base plate (1), and four electric telescopic rods (4) are fixedly mounted on the surface of the bracket (2), wherein a lower pressure plate (5) is fixedly mounted on the output end of the electric telescopic rods (4), characterized in that: The lower pressure plate (5) is provided with a folded edge structure (6); The folding structure (6) includes a first hydraulic cylinder (61) fixedly installed on the upper surface of the lower pressure plate (5). A connecting plate (62) is fixedly installed at the output end of the first hydraulic cylinder (61). Four guide plates (63) are fixedly installed on the surface of the connecting plate (62). Four folding plates (64) are rotatably installed on the surface of the connecting plate (62). A vertical connecting plate (65) is slidably installed on the lower surface of the guide plate (63). One side of the vertical connecting plate (65) is rotatably connected to the folding plate (64). A guide telescopic assembly (7) is provided between the guide plate (63) and the vertical connecting plate (65).

2. The folding device for carton production according to claim 1, characterized in that: The box plate support assembly (3) includes four second hydraulic cylinders (31) fixedly installed on the upper surface of the base plate (1). The output end of the second hydraulic cylinder (31) is fixedly installed with a support plate (32). The lower surface of the support plate (32) is fixedly installed with four support side plates (33).

3. A folding device for carton production according to claim 1, characterized in that: The guide telescopic assembly (7) includes two strip grooves (71) formed on the lower surface of the guide plate (63). A slide rod (72) is fixedly installed inside the strip groove (71). A spring (73) and a connecting sleeve (74) are sleeved on the surface of the slide rod (72). One end of the spring (73) is fixedly connected to the inside of the strip groove (71) and the other end is fixedly connected to the connecting sleeve (74). The vertical connecting plate (65) is fixedly connected to the connecting sleeve (74).

4. A folding device for carton production according to claim 1, characterized in that: The lower pressure plate (5) is located directly above the support plate (32).

Citation Information

Patent Citations

  • Edge folding device for carton production

    CN221392490U