Paper pressing device for carton bottom sealing, pressing and folding

Abstract

The utility model relates to the technical field of carton processing, in particular to a paper pressing device for carton bottom sealing, pressing and folding, which comprises a conveying mechanism, a pushing and folding assembly, a flattening assembly, a glue spraying assembly, a board pasting assembly and a main controller, the conveying mechanism is used for conveying cartons, a supporting frame is arranged on the conveying mechanism, the pushing and folding assembly is arranged on the supporting frame, and the flattening assembly is arranged on the supporting frame. The pushing and folding assembly is arranged on the paper box and used for bending two opposite paper boards on the paper box, the flattening assembly is arranged on the pushing and folding assembly and used for flattening the bent paper boards, and the glue spraying assembly is arranged on the flattening assembly and used for spraying glue to the paper boards. According to the carton bottom sealing device, after paperboards are folded and pressed to be in a horizontal state through the flattening assembly, glue spraying action is conducted through the glue spraying mechanism, glue on the paperboards is prevented from dripping, then the other two paperboards are attached to the paperboards subjected to glue spraying through the board attaching assembly, and bottom sealing work of cartons is conducted.

Description

Technical Field

[0001] The utility model relates to a paper pressing device, in particular to a paper pressing device used for folding the bottom cover of a carton, and belongs to the technical field of carton processing. Background Art

[0002] The bottom cover of a carton is usually made of folded cardboard. Through processes such as folding and gluing, a solid bottom is formed to carry items and protect their safety. Different types of carton bottom covers are suitable for different item packaging needs. For example, some heavy items may require a stronger bottom cover structure, while some light items can use a simpler bottom cover design.

[0003] According to a Chinese patent document with announcement number CN213735922U, a carton sealing device is disclosed, including a transverse moving mechanism, side plates are provided on both sides of the transverse moving mechanism, and a loading platform is connected to the transverse moving mechanism; side pressure mechanisms and hot melt adhesive heads are connected to the two side plates, and the top surface of one of the side plates is connected to an upper folding and sealing mechanism; the upper folding and sealing mechanism includes a rack and two slave gears meshing with the rack, the slave gears are rotatably connected to one of the side plates, and the two slave gears are symmetrically arranged about the rack, and the rack is connected to a driving cylinder; each of the slave gears is connected to a rotating plate, the top surface of the rotating plate is connected to a downward pressure cylinder, and the piston rod of the downward pressure cylinder passes through the rotating plate and is connected to a pressure plate; the carton sealing device described in the utility model adopts a hot melt adhesive head in combination with a side pressure mechanism and an upper folding and sealing mechanism, which can automatically seal the carton and improve production efficiency.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it was found that when the above equipment is used, the carton is driven by the lateral moving mechanism to the hot melt glue head for glue spraying before it can be folded through the pressure measuring mechanism. At this time, since the carton cardboard is in a vertical state, the glue may flow downward after being sprayed, or even drip onto the box body, causing contamination of the carton.

[0005] Therefore, we propose a paper pressing device for folding the bottom cover of a carton to solve the above-mentioned problems. Utility Model Content

[0006] The utility model aims to provide a paper pressing device for folding the bottom cover of a carton. After the paperboard is folded into a horizontal state by a flattening component, a glue spraying mechanism is used to spray glue to prevent the glue on the paperboard from dripping. After that, another two paperboards are pasted on the glue-sprayed paperboard by a pasting component to perform the bottom cover work of the carton.

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include: a conveying mechanism, a push-folding component, a flattening component, a glue spraying component, a plate pasting component and a main controller. The conveying mechanism is used to transport cartons. The conveying mechanism is provided with a support frame. The push-folding component is arranged on the support frame, and is used to bend two opposite cardboards on the carton. The flattening component is arranged on the push-folding component, and is used to flatten the bent cardboard. The glue spraying component is arranged on the flattening component, and is used to spray glue on the cardboard. The plate pasting component is installed on the support frame, and is used to fit the other two cardboards of the carton with the glue-sprayed cardboard. When the main controller receives the signal of the flattening component, it controls the action of the glue spraying component and the action of the plate pasting component.

[0008] Preferably, the push-folding assembly includes a first telescopic member and a first roller installed on a supporting frame, a movable end of the first telescopic member is connected to a connecting frame, and the first roller is rotatably connected to the connecting frame.

[0009] Preferably, the flattening assembly includes a pressure plate and a second telescopic member, a connecting seat is provided at one end of the connecting frame, the second telescopic member is in contact with the top inner wall of the connecting seat, the movable end of the second telescopic member is connected to a receiving plate, the bottom of the receiving plate is connected to the pressure plate by a spring, and the bottom of the receiving plate is connected to a pressure sensor electrically connected to the main controller.

[0010] Preferably, the glue spraying assembly includes a third telescopic part connected to the outer wall on one side of the connecting seat and a glue spraying mechanism, the movable end of the third telescopic part is connected to a supporting frame, the glue spraying mechanism is installed on the supporting frame, the end of the supporting frame is connected to a first distance sensor, and the first distance sensor and the third telescopic part are both electrically connected to the main controller.

[0011] Preferably, the plate assembly includes a sliding frame connected to the supporting frame and a second roller, a sliding groove is opened inside the sliding frame, and two sliding seats are slidably connected inside the sliding groove, and the bottoms of the two sliding seats are connected to a fourth telescopic member electrically connected to the main controller, and the movable end of the fourth telescopic member is rotatably connected to the second roller, and a driving member is provided on one side of the sliding frame, and the output end of the driving member is connected to a bidirectional screw rod rotatably connected to the sliding groove, and the bidirectional screw rod passes through the two sliding seats and is threadedly connected to the two sliding seats.

[0012] Preferably, a second distance sensor is provided on the receiving plate, and the second distance sensor is electrically connected to the main controller.

[0013] Preferably, the lowest points of the flattening assembly, the glue spraying assembly and the plate pasting assembly are all higher than the lowest point of the push-folding assembly.

[0014] Preferably, the support frame is a liftable structure.

[0015] The utility model has at least the following beneficial effects:

[0016] 1. After the cardboard is folded into a horizontal state by the flattening component, the glue spraying mechanism is used to spray glue to prevent the glue on the cardboard from dripping. Then, the other two cardboards are attached to the glue-sprayed cardboard by the pasting component to seal the bottom of the carton. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 The isometric structure diagram provided by the utility model Figure 1 ;

[0019] Figure 2 The isometric structure diagram provided by the utility model Figure 2 ;

[0020] Figure 3 A schematic diagram of the structure of the plate assembly provided by the utility model;

[0021] Figure 4 A schematic diagram of the cross-sectional structure of the connecting seat provided by the utility model;

[0022] Figure 5 A schematic diagram of the cross-sectional structure of the sliding frame provided by the utility model;

[0023] Figure 6 The system frame provided by the utility model Figure 1 ;

[0024] Figure 7 The system frame provided by the utility model Figure 2 .

[0025] In the figure, 1. conveying mechanism; 11. supporting frame; 2. main controller; 3. first telescopic member; 31. first roller; 32. connecting frame; 4. pressing plate; 41. second telescopic member; 42. connecting seat; 43. receiving plate; 44. spring; 45. pressure sensor; 5. third telescopic member; 51. glue spraying mechanism; 52. receiving frame; 53. first distance sensor; 6. sliding frame; 61. second roller; 62. sliding groove; 63. sliding seat; 64. fourth telescopic member; 65. driving member; 66. bidirectional screw rod; 7. second distance sensor. DETAILED DESCRIPTION

[0026] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] like Figure 1-Figure 7 As shown, the present embodiment provides a paper pressing device for folding the bottom cover of a carton, a conveying mechanism 1, a folding push assembly, a flattening assembly, a glue spraying assembly, a plate pasting assembly and a main controller 2. The conveying mechanism 1 is used for conveying the carton. A support frame 11 is provided on the conveying mechanism 1. The folding push assembly is arranged on the support frame 11, and is used for bending two opposite paperboards on the carton. The flattening assembly is arranged on the folding push assembly, and is used for flattening the bent paperboard. The glue spraying assembly is arranged on the flattening assembly, and is used for spraying glue on the paperboard. The plate pasting assembly is installed on the support frame 11, and is used for pasting the other two paperboards of the carton with the paperboard after glue spraying. When the main controller 2 receives the signal of the flattening assembly, it controls the action of the glue spraying assembly and the action of the plate pasting assembly. After the paperboard is folded and pressed into a horizontal state by the flattening assembly, the glue spraying mechanism 51 is used for spraying glue to prevent the glue on the paperboard from dripping. Then, the other two paperboards are pasted on the paperboard after glue spraying by the plate pasting assembly to perform the bottom cover of the carton.

[0028] Further, such as Figure 1 As shown, the push-folding assembly includes a first telescopic member 3 and a first roller 31 installed on the support frame 11. The movable end of the first telescopic member 3 is connected to the connecting frame 32. The first roller 31 is rotatably connected to the connecting frame 32. The two first telescopic members 3 are arranged opposite to each other. When the two first rollers 31 are driven to move relative to each other, the two upright cardboards can be folded, and the middle of the two first rollers 31 is the connection point of the two cardboards. The support frame 11 is a liftable structure. When the carton is placed on the conveying mechanism 1, the height of the support frame 11 can be adjusted according to the height of the carton, so that the support frame 11 drives the first roller 31 to be opposite to the cardboard of the carton.

[0029] Further, such as Figure 4As shown, the flattening assembly includes a pressing plate 4 and a second telescopic member 41. A connecting seat 42 is provided at one end of the connecting frame 32. The second telescopic member 41 contacts the top inner wall of the connecting seat 42. The movable end of the second telescopic member 41 is connected to a receiving plate 43. The bottom of the receiving plate 43 is connected to the pressing plate 4 through a spring 44. The bottom of the receiving plate 43 is connected to a pressure sensor 45 electrically connected to the main controller 2. After the first roller 31 bends the paperboard, the receiving plate 43 is driven downward by the second telescopic member 41 to make the receiving plate 43 move downward. The connecting plate 43 drives the pressing plate 4 to flatten the bent cardboard, and when the pressing plate 4 conflicts with the two edges of the carton and cannot continue to move, as the second telescopic member 41 continues to extend downward, the connecting plate 43 compresses the spring 44, causing the pressure sensor 45 to conflict with the pressing plate 4. At this time, the pressure sensor 45 sends a signal to the main control. After the main controller 2 receives the pressure signal from the pressure sensor 45, it stops the second telescopic member 41. At this time, the cardboard is flattened, and the flattened cardboard and the pressing plate 4 are in a perpendicular state to each other.

[0030] Further, such as Figure 1 As shown, the glue spraying assembly includes a third telescopic member 5 connected to the outer wall of one side of the connecting seat 42 and a glue spraying mechanism 51. The movable end of the third telescopic member 5 is connected to the receiving frame 52. The glue spraying mechanism 51 is installed on the receiving frame 52. The end of the receiving frame 52 is connected to the first distance sensor 53, and the first distance sensor 53 and the third telescopic member 5 are both electrically connected to the main controller 2. When the main controller 2 receives the pressure signal of the pressure sensor 45, it will start the third telescopic member 5 and drive the receiving frame 52 to move to the other two cardboards of the carton. When the first distance sensor 53 senses that the distance between the receiving frame 52 and the cardboard reaches the set threshold, it transmits the signal to the main controller 2, and the main controller 2 controls the glue spraying mechanism 51 to spray glue on the surface of the bent cardboard.

[0031] Further, such as Figure 3As shown, the plate assembly includes a sliding frame 6 connected to the support frame 11 and a second roller 61, a sliding groove 62 is opened inside the sliding frame 6, and two sliding seats 63 are slidably connected inside the sliding groove 62. The bottoms of the two sliding seats 63 are connected to a fourth telescopic member 64 electrically connected to the main controller 2, and the movable end of the fourth telescopic member 64 is rotatably connected to the second roller 61. A driving member 65 is provided on one side of the sliding frame 6, and the output end of the driving member 65 is connected to a bidirectional screw rod 66 rotatably connected to the sliding groove 62. The bidirectional screw rod 66 runs through the two sliding seats 63 and is threadedly connected to the two sliding seats 63. A second distance sensor 7 is provided on the receiving plate 43. The second distance sensor The device 7 is electrically connected to the main controller 2. Specifically, when the second telescopic member 41 drives the receiving plate 43 to move downward, the second distance sensor 7 detects the change in distance from the bottom of the connecting seat 42 and transmits the distance value S1 to the main controller 2. After that, after the glue spraying is completed, the column controls the fourth telescopic member 64 to move downward, generating a movement distance value S2. S1 is equal to S2, so that the second roller 61 can be moved to be flush with the folded cardboard. Then, the driving member 65 drives the bidirectional screw 66 to rotate, so that the two sliding seats 63 drive the two second rollers 61 to move relative to each other, so as to fit the other two cardboards on the cardboard after glue spraying, and seal the bottom of the carton.

[0032] Further, such as Figure 1 As shown, the lowest points of the flattening assembly, the glue spraying assembly and the plate sticking assembly are all higher than the lowest point of the push-folding assembly. When the carton moves to be opposite to the push-folding assembly, it will not interfere with the glue spraying assembly and the plate sticking assembly, thereby avoiding the deviation of the carton placed on the conveying mechanism 1.

[0033] It should be noted that the first telescopic member 3, the second telescopic member 41, the third telescopic member 5 and the fourth telescopic member 64 can be electric telescopic members and other devices, and the driving member 65 can be a motor and other devices. Those skilled in the art should know this and will not be elaborated on here.

[0034] like Figure 1-Figure 7As shown, the principle of the paper pressing device for folding the bottom cover of a carton provided in this embodiment is as follows: when in use, the carton is first unfolded so that the bottom of the carton is placed on the conveying mechanism 1 facing upwards; when the carton moves to the first roller 31, the first telescopic member 3 is started to drive the first roller 31 to move and bend the two paperboards of the carton; when the first telescopic member 3 is extended to the longest state, the flattening assembly is started, and the receiving plate 43 is driven downward by the second telescopic member 41 to move the pressing plate 4 downward, so that the bent paperboard of the first roller 31 is pressed downward; when the pressing plate 4 is pressed on the two edges of the carton and cannot continue to move downward, it indicates that the two paperboards are flattened; at this time, the pressing plate 4 will generate a pressure signal to the pressure sensor 45, and the main controller After receiving the signal from the pressure sensor 45, the third telescopic member 5 is controlled to start, driving the receiving frame 52 to move toward the other two paperboards of the carton. When the first distance sensor 53 senses that the distance between the receiving frame 52 and the paperboard reaches the set threshold, the signal is transmitted to the main controller 2, and the main controller 2 controls the glue spraying mechanism 51 to spray glue on the surface of the bent paperboard. After the glue spraying is completed, according to the distance from the top of the connecting seat 42 sensed by the second distance sensor 7, the main controller 2 controls the fourth telescopic member 64 to move downward by the same distance, and drives the two sliding seats 63 to drive the second roller 61 to move in the same direction through the driving member 65, so as to make the other two paperboards fit on the glue-coated paperboard to perform the bottom sealing work.

Claims

1. A paper pressing device for folding the bottom cover of a carton, characterized in that: include; A conveying mechanism (1), the conveying mechanism (1) being used for conveying cartons, the conveying mechanism (1) being provided with a support frame (11); A push-folding assembly, the push-folding assembly being arranged on the support frame (11) and being used for bending two opposite paperboards on the carton; A flattening component, which is arranged on the push-folding component and is used to flatten the bent paperboard; A glue spraying assembly, which is arranged on the flattening assembly and is used to spray glue on the paperboard; A board pasting assembly, the board pasting assembly being mounted on the support frame (11) and being used to pasting the other two paperboards of the carton with the paperboard after the glue is sprayed; A main controller (2) controls the action of the glue spraying component and the action of the plate pasting component when the main controller (2) receives a signal from the flattening component.

2. A paper pressing device for folding the bottom cover of a carton according to claim 1, characterized in that: The push-folding assembly comprises a first telescopic member (3) and a first roller (31) mounted on a support frame (11); a movable end of the first telescopic member (3) is connected to a connecting frame (32); and the first roller (31) is rotatably connected to the connecting frame (32).

3. A paper pressing device for folding the bottom cover of a carton according to claim 2, characterized in that: The flattening assembly comprises a pressing plate (4) and a second telescopic member (41); a connecting seat (42) is provided at one end of the connecting frame (32); the second telescopic member (41) is in contact with the top inner wall of the connecting seat (42); a movable end of the second telescopic member (41) is connected to a receiving plate (43); the bottom of the receiving plate (43) is connected to the pressing plate (4) via a spring (44); and the bottom of the receiving plate (43) is connected to a pressure sensor (45) electrically connected to the main controller (2).

4. A paper pressing device for folding the bottom cover of a carton according to claim 3, characterized in that: The glue spraying assembly comprises a third telescopic member (5) connected to an outer wall of one side of the connecting seat (42) and a glue spraying mechanism (51); a movable end of the third telescopic member (5) is connected to a receiving frame (52); the glue spraying mechanism (51) is mounted on the receiving frame (52); an end of the receiving frame (52) is connected to a first distance sensor (53); and the first distance sensor (53) and the third telescopic member (5) are both electrically connected to a main controller (2).

5. The paper pressing device for folding the bottom cover of a carton according to claim 1, characterized in that: The plate assembly comprises a sliding frame (6) connected to the support frame (11) and a second roller (61); a sliding groove (62) is provided inside the sliding frame (6); two sliding seats (63) are slidably connected inside the sliding groove (62); the bottoms of the two sliding seats (63) are connected to a fourth telescopic member (64) electrically connected to the main controller (2); the movable end of the fourth telescopic member (64) is rotatably connected to the second roller (61); a driving member (65) is provided on one side of the sliding frame (6); the output end of the driving member (65) is connected to a bidirectional screw rod (66) rotatably connected to the sliding groove (62); the bidirectional screw rod (66) passes through the two sliding seats (63) and is threadedly connected to the two sliding seats (63).

6. A paper pressing device for folding the bottom cover of a carton according to claim 3, characterized in that: A second distance sensor (7) is provided on the receiving plate (43), and the second distance sensor (7) is electrically connected to the main controller (2).

7. A paper pressing device for folding the bottom cover of a carton according to claim 1, characterized in that: The lowest points of the flattening component, the glue spraying component and the plate pasting component are all higher than the lowest point of the push-folding component.

8. The paper pressing device for folding the bottom cover of a carton according to claim 1, characterized in that: The support frame (11) is a liftable structure.

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