Hard paper box edge folding device

Abstract

The utility model relates to a cardboard box edge folding device which comprises two oppositely-arranged n-shaped fixing frames, conveying belts are arranged on the opposite sides of the two fixing frames, a height-adjustable fixing box is arranged above the conveying belts, the fixing box is arranged in a penetrating mode and rotationally connected with a transverse rod, and the two ends of the transverse rod are coaxially and fixedly connected with first screw rods; two first screws are arranged on the cross rod, the thread directions of the two first screws are opposite when the two first screws are arranged, the first screws are in threaded connection with connecting blocks, the outer walls of the connecting blocks are coaxially and fixedly connected with edge folding discs, and the two edge folding discs are close to or far away from each other when the cross rod rotates. The distance between the first telescopic rod and the second telescopic rod is adjusted according to the size requirement of the folded edge, the distance between the baffles matched with the edge folding disc is adjusted, the carton is conveyed to the position above the baffles after the folds are pressed, the upper ends of the baffles are located at the folds, the second telescopic rod is started, and the first pressing plate and the second pressing plate work in a matched mode to fold the carton from the folds.

Description

Technical Field

[0001] This application relates to the technical field of hard cardboard box production, and particularly to a hard cardboard box edge folding device. Background Art

[0002] Hard cardboard box edge folding refers to folding the edges or corners of a hard cardboard box to increase the stability and firmness of the box. Usually in the packaging industry, edge folding can effectively strengthen the structure of the cardboard box and prevent damage during transportation. There are many ways of edge folding, and generally the specific folding method is determined according to the size and use of the box. Common edge folding methods include right-angle edge folding, 45-degree bevel edge folding, etc.

[0003] Traditional hard cardboard box edge folding devices fold the cardboard box after pressing out the crease. This folding method is usually only used for edge folding of cardboard boxes with fixed sizes and is difficult to meet the edge folding requirements of cardboard boxes of different sizes. Moreover, the crease of the cardboard box after pressing out the crease is usually relatively shallow. If the edge folding is not carried out in time, the crease of the hard cardboard box will gradually rebound, which is not convenient for subsequent operations. Therefore, to solve the above problems, this application provides a hard cardboard box edge folding device.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Utility Model Content

[0005] In order to solve the problems of difficulty in edge folding cardboard boxes with different size requirements and the rebound of the crease when the edge folding is not carried out in time, this application provides a hard cardboard box edge folding device.

[0006] A hard cardboard box edge folding device provided by this application includes two relatively arranged "冂"-shaped fixed frames. Two rotating shafts are rotatably connected to the opposite sides of the two fixed frames. A conveyor belt is sleeved on the outer wall of the rotating shaft and is driven by it. A fixed box with adjustable height is arranged above the conveyor belt. The fixed box is provided with a through hole and is rotatably connected to a cross bar. Both ends of the cross bar are coaxially and fixedly connected with a first screw rod. When the two first screw rods are arranged, the thread directions are opposite. The first screw rods are both threadedly connected with connection blocks. The outer walls of the connection blocks are coaxially and fixedly connected with edge folding discs. When the cross bar rotates, the two edge folding discs approach or move away from each other.

[0007] Preferably, first linear modules are fixedly arranged on the upper walls of the fixed frames. First sliders are slidably connected to the first linear modules. Support rods are fixedly connected to the upper ends of the first sliders. A connecting rod is fixedly connected to the opposite sides of the two support rods.

[0008] Preferably, a first telescopic rod is fixedly connected to the lower end of the connecting rod. A connecting plate is fixedly connected to the lower end of the first telescopic rod. A first motor is fixedly connected to the lower end of the connecting plate. A rotating rod is coaxially and fixedly connected to the rotating shaft of the first motor.

[0009] Preferably, the rotating rod is arranged to pass through the upper wall of the fixing box and is rotatably connected thereto, and one end of the rotating rod located inside the fixing box is coaxially fixedly connected with the first bevel gear.

[0010] Preferably, the outer wall of the cross bar located inside the fixing box is coaxially fixedly connected with a second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0011] Preferably, a fixed plate is fixedly provided at the front end of the fixed frame, a movable groove is provided on the upper wall of the fixed plate, a movable block is slidably provided in the movable groove, and a baffle is fixedly connected to the upper wall of the movable block, and the upper wall of the baffle is flush with the upper surface of the conveyor belt.

[0012] Preferably, a second screw is disposed through and rotatably connected to the side wall of the fixed plate, one end of the second screw is rotatably connected to the inner wall of the movable groove, the second screw passes through the two movable blocks and is threadedly connected to the two with the thread directions at the connection being opposite, and a second motor is fixedly disposed on the side wall of the fixed plate to drive the second screw to rotate.

[0013] Preferably, two vertical rods are fixedly connected to the upper wall of the fixed plate, second linear modules are fixedly connected to the opposite sides of the vertical rods, two second sliders are slidably arranged below the second linear module, and the lower ends of the second sliders are fixedly connected to second telescopic rods.

[0014] Preferably, the lower end of one of the second telescopic rods is fixedly connected to a first pressing plate, the lower end of the other second telescopic rod is fixedly connected to a second pressing plate, and the first pressing plate passes through the second pressing plate and is slidably connected thereto.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] The first motor drives the rotating rod to rotate, so that the first bevel gear drives the second bevel gear to rotate. The rotation of the cross bar and the first screw makes the two folding disks approach or move away from each other, so that the distance between the two is adjusted according to the size of the folding, and then the first telescopic rod is adjusted to a suitable height for folding. Compared with the traditional device, the device can adjust the position of the folding according to actual requirements and is more applicable.

[0017] By adjusting the distance between the baffles that cooperate with the folding disk, the carton is conveyed to the top of the baffle after the crease is pressed and the upper end of the baffle is located at the crease. The distance between the two second sliders is adjusted by the second linear module, the second telescopic rod is started, and the first pressing plate and the second pressing plate cooperate to fold the carton from the crease. Compared with the traditional device, the device deepens the position of the indentation, reduces the labor intensity of the staff, and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the top view of the overall structure in the first embodiment of the present application;

[0019] Figure 2 It is the top view of the hemming structure in the first embodiment of the present application;

[0020] Figure 3 It is the internal schematic diagram of the hemming structure in the first embodiment of the present application;

[0021] Figure 4 It is the top view of the compaction structure in the first embodiment of the present application.

[0022] Explanation of reference numerals: 1, fixing frame; 2, first linear module; 3, first slider; 4, conveyor belt; 5, support rod; 6, connecting rod; 7, first telescopic rod; 8, connecting plate; 9, first motor; 10, fixing box; 11, rotating rod; 12, first bevel gear; 13, second bevel gear; 14, cross bar; 15, first screw; 16, hemming disc; 17, rotating shaft; 18, fixing plate; 19, vertical rod; 20, second linear module; 21, second slider; 22, second telescopic rod; 23, first pressing plate; 24, second pressing plate; 25, baffle; 26, moving groove; 27, second screw; 28, second motor; 29, moving block; 30, connecting block. Detailed implementation manners

[0023] The following further elaborates on the present application in conjunction with the attached Figure 1-4 for further detailed description.

[0024] Embodiment 1

[0025] Referring to Figure 1-4 , a hard cardboard box hemming device includes two oppositely arranged "冂"-shaped fixing frames 1. Two rotating shafts 17 are rotatably connected to the opposite sides of the two fixing frames 1. A conveyor belt 4 is sleeved on the outer wall of the rotating shaft 17 and driven by it. Above the conveyor belt 4, there is a fixing box 10 with adjustable height. The fixing box 10 is provided with a through hole and rotatably connected with a cross bar 14. At both ends of the cross bar 14, first screws 15 are coaxially and fixedly connected. When the two first screws 15 are arranged, the thread directions are opposite. The first screws 15 are both threadedly connected with connecting blocks 30. On the outer walls of the connecting blocks 30, hemming discs 16 are coaxially and fixedly connected. When the cross bar 14 rotates, the two hemming discs 16 approach or move away from each other.

[0026] On the upper walls of the fixing frames 1, first linear modules 2 are fixedly arranged. The first linear modules 2 are both slidably connected with first sliders 3. At the upper ends of the first sliders 3, support rods 5 are fixedly connected. On the opposite sides of the two support rods 5, a connecting rod 6 is fixedly connected. At the lower end of the connecting rod 6, a first telescopic rod 7 is fixedly connected. At the lower end of the first telescopic rod 7, a connecting plate 8 is fixedly connected. At the lower end of the connecting plate 8, a first motor 9 is fixedly connected. The rotating shaft of the first motor 9 is coaxially and fixedly connected with a rotating rod 11.

[0027] The rotating rod 11 is arranged through the upper wall of the fixed box 10 and is rotatably connected thereto, and one end of the rotating rod 11 located inside the fixed box 10 is coaxially fixedly connected to the first bevel gear 12. The outer wall of the cross bar 14 located inside the fixed box 10 is coaxially fixedly connected to the second bevel gear 13, and the first bevel gear 12 is meshed with the second bevel gear 13.

[0028] Start the first motor 9 to drive the rotating rod 11 to rotate, so that the first bevel gear 12 drives the second bevel gear 13 to rotate, so that the cross bar 14 and the first screw 15 rotate. Since the threads at the connection are in opposite directions, the two folding disks 16 are close to or away from each other, so that the distance between the two folding disks 16 is adjusted according to the size of the folding, and then adjusted to a suitable height through the first telescopic rod 7, the conveyor belt 4 transports the carton through the folding disk 16 and presses out an indentation.

[0029] A fixed plate 18 is fixedly arranged at the front end of the fixed frame 1, and a moving groove 26 is arranged on the upper wall of the fixed plate 18. A moving block 29 is slidably arranged in the moving groove 26. A baffle 25 is fixedly connected to the upper wall of the moving block 29. The upper wall of the baffle 25 is flush with the upper surface of the conveyor belt 4. The position of the baffle 25 is matched with the folding plate 16. When the folding plate 16 changes its width, the position of the baffle 25 can always be adjusted to correspond to it. A second screw 27 is set through the side wall of the fixed plate 18 and is rotatably connected. One end of the second screw 27 is rotatably connected to the inner wall of the moving groove 26. The second screw 27 passes through the two moving blocks 29 and is threadedly connected to the two, and the thread directions at the connection are opposite. A second motor 28 that drives the second screw 27 to rotate is fixedly arranged on the side wall of the fixed plate 18.

[0030] According to the position of the folding disk 16, the second motor 28 is started, the two baffles 25 move closer or farther away, and the distance between the baffles 25 is adjusted to cooperate with the folding disk 16, so that the carton is pressed out with a crease and transferred to the top of the baffle 25 and the upper end of the baffle 25 is located at the crease.

[0031] Two vertical rods 19 are fixedly connected to the upper wall of the fixed plate 18, and a second linear module 20 is fixedly connected to the opposite side of the vertical rod 19. Two second sliders 21 are slidably arranged below the second linear module 20, and the lower ends of the second sliders 21 are fixedly connected to the second telescopic rods 22. A first pressing plate 23 is fixedly connected to the lower end of one second telescopic rod 22, and a second pressing plate 24 is fixedly connected to the lower end of the other second telescopic rod 22. The first pressing plate 23 passes through the second pressing plate 24 and is slidably connected thereto.

[0032] When the carton with indentation is located at the upper end of the baffle 25, the distance between the two second sliders 21 is adjusted by the second linear module 20 so that the first pressure plate 23 and the second pressure plate 24 are located between the two baffles 25, and the second telescopic rod 22 is started, and the first pressure plate 23 and the second pressure plate 24 cooperate to fold the carton from the crease.

[0033] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0034] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hard cardboard box edge folding device, comprising two relatively arranged "冂"-shaped fixing frames (1), characterized in that: Two rotating shafts (17) are rotatably connected to opposite sides of the two fixing frames (1), and a conveyor belt (4) is sleeved on the outer wall of the rotating shaft (17) and is transmitted through the conveyor belt (4). A height-adjustable fixing box (10) is arranged above the conveyor belt (4), and a cross bar (14) is arranged through the fixing box (10) and is rotatably connected. First screws (15) are coaxially fixedly connected to both ends of the cross bar (14), and the two first screws (15) are arranged with opposite thread directions. The first screws (15) are threadedly connected to a connecting block (30), and the outer wall of the connecting block (30) is coaxially fixedly connected to a folding plate (16). When the cross bar (14) rotates, the two folding plates (16) move closer to or farther away from each other.

2. A cardboard box folding device according to claim 1, characterized in that: The upper wall of the fixed frame (1) is fixedly provided with a first linear module (2), the first linear module (2) is slidably connected to a first slider (3), the upper end of the first slider (3) is fixedly connected to a support rod (5), and the opposite sides of the two support rods (5) are fixedly connected to a connecting rod (6).

3. A cardboard box folding device according to claim 2, characterized in that: The lower end of the connecting rod (6) is fixedly connected to a first telescopic rod (7), the lower end of the first telescopic rod (7) is fixedly connected to a connecting plate (8), the lower end of the connecting plate (8) is fixedly connected to a first motor (9), and the rotating shaft of the first motor (9) is coaxially fixedly connected to a rotating rod (11).

4. A cardboard box folding device according to claim 3, characterized in that: The rotating rod (11) is arranged to pass through the upper wall of the fixed box (10) and is rotatably connected thereto; one end of the rotating rod (11) located inside the fixed box (10) is coaxially fixedly connected to the first bevel gear (12).

5. A cardboard box folding device according to claim 4, characterized in that: The outer wall of the cross bar (14) located inside the fixing box (10) is coaxially fixedly connected with a second bevel gear (13), and the first bevel gear (12) is meshed with the second bevel gear (13).

6. A cardboard box folding device according to claim 1, characterized in that: A fixed plate (18) is fixedly arranged at the front end of the fixed frame (1), a movable groove (26) is arranged on the upper wall of the fixed plate (18), a movable block (29) is slidably arranged in the movable groove (26), and a baffle (25) is fixedly connected to the upper wall of the movable block (29), and the upper wall of the baffle (25) is flush with the upper surface of the conveyor belt (4).

7. A cardboard box folding device according to claim 6, characterized in that: A second screw rod (27) is provided through the side wall of the fixed plate (18) and is rotatably connected thereto. One end of the second screw rod (27) is rotatably connected to the inner wall of the movable groove (26). The second screw rod (27) is provided through the two movable blocks (29) and is threadedly connected thereto, and the thread directions at the connection are opposite. A second motor (28) is fixedly provided on the side wall of the fixed plate (18) to drive the second screw rod (27) to rotate.

8. A cardboard box folding device according to claim 6, characterized in that: The upper wall of the fixed plate (18) is fixedly connected to two vertical rods (19), and the opposite side of the vertical rods (19) is fixedly connected to a second linear module (20), and two second sliding blocks (21) are slidably arranged below the second linear module (20), and the lower ends of the second sliding blocks (21) are fixedly connected to a second telescopic rod (22).

9. A cardboard box folding device according to claim 8, characterized in that: The lower end of one of the second telescopic rods (22) is fixedly connected to a first pressing plate (23), and the lower end of the other second telescopic rod (22) is fixedly connected to a second pressing plate (24); the first pressing plate (23) passes through the second pressing plate (24) and is slidably connected thereto.

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