A folding device for packaging boxes
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUYANG JINHAI TIMES PACKAGING CO LTD
- Filing Date
- 2025-04-01
- Publication Date
- 2026-05-26
AI Technical Summary
Existing packaging box folding devices are difficult to control the folding angle precisely, and the folding plate is prone to instability during the folding process, which can lead to it falling off and damaging the cardboard.
It adopts a hinged structure of first and second folding plates, and controls the folding angle through a ratchet mechanism. The folding direction is limited by the cooperation of the cylinder and ball head with the ratchet. Chrome plating is used to improve durability.
It enables precise control of the folding angle of the packaging box, improves folding stability, extends the service life of the equipment, and avoids damage to the cardboard.
Smart Images

Figure CN224276417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging box folding technology, specifically a folding device for packaging boxes. Background Technology
[0002] A carton folding machine, also known as a cardboard box folding machine, is an automated device specifically designed to unfold, shape, fold, and seal the bottom of flat cardboard boxes or corrugated cardboard. It automates the unfolding, shaping, folding, and bottom sealing processes, significantly improving packaging efficiency. It is widely used in the food, beverage, pharmaceutical, and electronics industries, as well as in logistics and warehousing, for automated packaging production lines and rapid box preparation.
[0003] Existing packaging box folding devices are difficult to control precisely at the folding angle, and the folding plate is prone to falling off and damaging the cardboard during the folding process, so there is room for improvement. Utility Model Content
[0004] The purpose of this invention is to provide a folding device for packaging boxes to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a folding device for packaging boxes, comprising a first folding plate, a second folding plate, and a ratchet mechanism, wherein a first folding frame is fixedly connected to one side of the first folding plate, a second folding frame is fixedly connected to one side of the second folding plate, the second folding plate is hinged to the first folding plate, and the folding angle between the second folding plate and the first folding plate is controlled by the ratchet mechanism.
[0006] As a further embodiment of this utility model: a folding device for packaging boxes, wherein the ratchet mechanism includes a ratchet, a rotating shaft is rotatably connected inside the first folding frame, a hinge seat is fixedly connected to the outer periphery of the rotating shaft, one end of the hinge seat is fixedly connected to a second folding frame, a connecting shaft is fixedly connected to one end of the rotating shaft, the ratchet is fixedly connected to the connecting shaft, and a cylinder is provided inside the first folding frame, the cylinder being adapted to the ratchet.
[0007] As a further embodiment of this utility model: a folding device for packaging boxes, wherein a cylinder cavity is provided inside the first folding frame, and the cylinder is fixedly installed inside the cylinder cavity.
[0008] As a further embodiment of this utility model: a folding device for packaging boxes, wherein a rotating shaft cavity is provided on one side of the cylinder cavity, the cylinder cavity is connected to the rotating shaft cavity, and the ratchet is housed inside the rotating shaft cavity.
[0009] As a further embodiment of this utility model: a folding device for packaging boxes, wherein a ball head is fixedly connected to the output end of the cylinder, and the ball head is adapted to a ratchet.
[0010] As a further embodiment of this utility model: a folding device for packaging boxes, wherein the ball head and ratchet are chrome-plated throughout.
[0011] As a further embodiment of this utility model: a folding device for packaging boxes, wherein the opposite sides of the first folding plate and the second folding plate are both polished.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. A first folding frame is fixedly connected to one side of the first folding plate, and a second folding frame is fixedly connected to one side of the second folding plate. The second folding plate is hinged to the first folding plate. The folding angle of the second folding plate with the first folding plate is controlled by a ratchet mechanism. Specifically, the ratchet mechanism includes a ratchet. A rotating shaft is rotatably connected inside the first folding frame. A hinge seat is fixedly connected to the outer periphery of the rotating shaft. One end of the hinge seat is fixedly connected to the second folding frame. A connecting shaft is fixedly connected to one end of the rotating shaft. The ratchet is fixedly connected to the connecting shaft. A cylinder is installed inside the first folding frame. The cylinder is adapted to the ratchet. Therefore, when the output end of the cylinder extends into the rotation area of the ratchet, it can control the rotation direction of the ratchet, so that the second folding plate can only rotate in the direction of opening the angle. This can limit the folding angle of the packaging box, making it convenient for the packaging box to be formed or stored and folded for use.
[0014] 2. Because the output end of the cylinder is fixedly connected to a ball head, which is compatible with the ratchet, and both the ball head and the ratchet are chrome-plated, the ball head and the ratchet have a longer service life and the equipment is less prone to damage. Attached Figure Description
[0015] Figure 1 This is one of the schematic diagrams of the overall structure of a folding device for packaging boxes according to the present invention;
[0016] Figure 2 This is a second schematic diagram of the overall structure of a folding device for packaging boxes according to the present invention;
[0017] Figure 3 This is a schematic diagram of the hinge, rotating shaft, and connecting shaft in a folding device for packaging boxes according to the present invention.
[0018] Figure 4 This utility model relates to a folding device for packaging boxes. Figure 3 Enlarged view of point A in the middle;
[0019] In the diagram: 1. First folding plate; 2. Second folding plate; 3. First folding frame; 31. Cylinder chamber; 32. Rotary shaft chamber; 4. Second folding frame; 5. Hinge seat; 6. Rotary shaft; 7. Cylinder; 8. Ball head; 9. Ratchet; 10. Connecting shaft. Detailed Implementation
[0020] 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.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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. The embodiments of this utility model will be described below based on its overall structure.
[0022] In this embodiment of the utility model, a folding device for packaging boxes includes a first folding plate 1, a second folding plate 2 and a ratchet mechanism. A first folding frame 3 is fixedly connected to one side of the first folding plate 1, and a second folding frame 4 is fixedly connected to one side of the second folding plate 2. The second folding plate 2 is hinged to the first folding plate 1, and the folding angle between the second folding plate 2 and the first folding plate 1 is controlled by the ratchet mechanism.
[0023] Since a first folding frame 3 is fixedly connected to one side of the first folding plate 1, and a second folding frame 4 is fixedly connected to one side of the second folding plate 2, the second folding plate 2 is hinged to the first folding plate 1. The folding angle of the second folding plate 2 with the first folding plate 1 is controlled by a ratchet mechanism. Specifically, the ratchet mechanism includes a ratchet 9. A rotating shaft 6 is rotatably connected inside the first folding frame 3. A hinge seat 5 is fixedly connected to the outer periphery of the rotating shaft 6. One end of the hinge seat 5 is fixedly connected to the second folding frame 4. A connecting shaft 10 is fixedly connected to one end of the rotating shaft 6. The ratchet 9 is fixedly connected to the connecting shaft 10. A cylinder 7 is provided inside the first folding frame 3. The cylinder 7 is adapted to the ratchet 9. Therefore, when the output end of the cylinder 7 extends into the rotation area of the ratchet 9, it can control the rotation direction of the ratchet 9, so that the second folding plate 2 can only rotate in the direction of opening the angle. This can limit the folding angle of the packaging box, making it convenient for the packaging box to be formed or stored and folded for use.
[0024] As a further embodiment of this utility model: a folding device for packaging boxes, wherein the ratchet mechanism includes a ratchet 9, a rotating shaft 6 is rotatably connected inside the first folding frame 3, a hinge seat 5 is fixedly connected to the outer periphery of the rotating shaft 6, one end of the hinge seat 5 is fixedly connected to the second folding frame 4, a connecting shaft 10 is fixedly connected to one end of the rotating shaft 6, the ratchet 9 is fixedly connected to the connecting shaft 10, and a cylinder 7 is provided inside the first folding frame 3, the cylinder 7 being adapted to the ratchet 9.
[0025] As a further embodiment of this utility model: a folding device for packaging boxes, wherein the first folding frame 3 has a cylinder cavity 31 inside, and the cylinder 7 is fixedly installed inside the cylinder cavity 31.
[0026] As a further embodiment of this utility model: a folding device for packaging boxes, wherein a rotating shaft cavity 32 is provided on one side of the cylinder cavity 31, the cylinder cavity 31 is connected to the rotating shaft cavity 32, and the ratchet 9 is housed inside the rotating shaft cavity 32.
[0027] As a further embodiment of this utility model: a folding device for packaging boxes, wherein the output end of the cylinder 7 is fixedly connected to a ball head 8, and the ball head 8 is adapted to a ratchet 9.
[0028] As a further embodiment of this utility model: a folding device for packaging boxes, wherein the ball head 8 and ratchet 9 are chrome-plated throughout.
[0029] Since the output end of the cylinder 7 is fixedly connected to the ball head 8, which is compatible with the ratchet 9, and both the ball head 8 and the ratchet 9 are chrome-plated, the ball head 8 and the ratchet 9 have a longer service life and the equipment is less prone to damage.
[0030] As a further embodiment of this utility model: a folding device for packaging boxes, wherein the opposite sides of the first folding plate 1 and the second folding plate 2 are both polished.
[0031] The working principle of this utility model is as follows: A first folding frame 3 is fixedly connected to one side of the first folding plate 1, and a second folding frame 4 is fixedly connected to one side of the second folding plate 2. The second folding plate 2 is hinged to the first folding plate 1. The folding angle of the second folding plate 2 with the first folding plate 1 is controlled by a ratchet mechanism. Specifically, the ratchet mechanism includes a ratchet 9. A rotating shaft 6 is rotatably connected inside the first folding frame 3. A hinge seat 5 is fixedly connected to the outer periphery of the rotating shaft 6. One end of the hinge seat 5 is fixedly connected to the second folding frame 4. A connecting shaft 10 is fixedly connected to one end of the rotating shaft 6. The ratchet 9 is fixedly connected to the connecting shaft 10. A cylinder 7 is provided inside the first folding frame 3. The cylinder 7 is adapted to the ratchet 9. Therefore, when the output end of the cylinder 7 extends into the rotation area of the ratchet 9, it can control the rotation direction of the ratchet 9, so that the second folding plate 2 can only rotate in the direction of opening the angle. This can limit the folding angle of the packaging box, making it convenient for the packaging box to be formed or stored and folded for use.
[0032] Since the output end of the cylinder 7 is fixedly connected to the ball head 8, which is compatible with the ratchet 9, and both the ball head 8 and the ratchet 9 are chrome-plated, the ball head 8 and the ratchet 9 have a longer service life and the equipment is less prone to damage.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A folding device for packaging boxes, characterized in that, It includes a first folding plate (1), a second folding plate (2) and a ratchet mechanism. A first folding frame (3) is fixedly connected to one side of the first folding plate (1), and a second folding frame (4) is fixedly connected to one side of the second folding plate (2). The second folding plate (2) is hinged to the first folding plate (1), and the folding angle between the second folding plate (2) and the first folding plate (1) is controlled by the ratchet mechanism.
2. A folding device for packaging boxes according to claim 1, characterized in that, The ratchet mechanism includes a ratchet (9), a rotating shaft (6) is rotatably connected inside the first folding frame (3), a hinge seat (5) is fixedly connected to the outer periphery of the rotating shaft (6), one end of the hinge seat (5) is fixedly connected to the second folding frame (4), one end of the rotating shaft (6) is fixedly connected to the connecting shaft (10), the ratchet (9) is fixedly connected to the connecting shaft (10), and a cylinder (7) is provided inside the first folding frame (3), the cylinder (7) is adapted to the ratchet (9).
3. A folding device for packaging boxes according to claim 2, characterized in that, The first folding frame (3) has a cylinder chamber (31) inside, and the cylinder (7) is fixedly installed inside the cylinder chamber (31).
4. A folding device for packaging boxes according to claim 3, characterized in that, A rotating shaft cavity (32) is provided on one side of the cylinder cavity (31), the cylinder cavity (31) and the rotating shaft cavity (32) are connected, and the ratchet (9) is housed inside the rotating shaft cavity (32).
5. A folding device for a packaging box according to claim 4, characterized in that, The output end of the cylinder (7) is fixedly connected to a ball head (8), which is adapted to the ratchet (9).
6. A folding device for a packaging box according to claim 5, characterized in that, The ball head (8) and ratchet (9) are chrome-plated throughout.
7. A folding device for a packaging box according to claim 6, characterized in that, Both the first folded plate (1) and the second folded plate (2) are polished on opposite sides.