Novel carton bottom folding device

Abstract

The utility model relates to the technical field of paper box processing, in particular to a novel paper box bottom folding device which carries out bearing and limiting on a paper box main body through a lifting mechanism, lifts the paper box main body to the height of a folding mechanism and is matched with the folding mechanism to fold the bottom of the paper box. The bottom of the paper box is extruded through the folding mechanism to form a fixed fold, and the folded part of the bottom of the paper box is pressed in an auxiliary mode through the sealing mechanism, so that a bottom bending structure is not prone to unfolding, the bottom of the paper box is in a sealed state when the paper box enters the next procedure, and the paper box is protected against damage; meanwhile, the time for heating and sealing the bottom of the paper box is shortened, the bottom of the paper box is bonded more firmly, the paper box leakage problem is reduced, and the practicability of the device is improved; comprising a lifting mechanism, a folding mechanism and a sealing mechanism, the folding mechanism is connected with the lifting mechanism, and the sealing mechanism is installed on the lifting mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of paper box processing, in particular to a novel paper box bottom folding device. Background Art

[0002] The folding structure at the bottom of a carton usually refers to a multi-layer or complex structure formed by a specific folding method at the bottom of a folding carton to enhance the carton's load-bearing capacity and stability. This structure is widely used in the packaging industry, especially in packaging that needs to carry items of a certain weight. The principle of the folding structure at the bottom of a carton is to design a specific geometric shape and folding method so that the carton can better disperse pressure when subjected to force. In the food, cosmetics, electronic products and other industries, the folding structure at the bottom of a carton has been widely used.

[0003] The old bottom folding device can only fold the carton, and the bottom of the carton is in an open state, which can easily damage the carton when it enters the next process. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a paper box bottom folding device which uses a lifting mechanism to limit the load on the paper box body, lifts the paper box body to the height of the folding mechanism, cooperates with the folding mechanism to fold the bottom of the paper box, squeezes the bottom of the paper box to form a fixed crease through the folding mechanism, and assists in pressing the folded part of the bottom of the paper box through the sealing mechanism, so that the bottom bending structure is not easy to unfold, so that the bottom of the paper box is in a sealed state when entering the next process, protecting the paper box from damage, and at the same time reducing the time for heating and sealing the bottom of the paper box, making the bottom of the paper box more firmly bonded, reducing the problem of paper box leakage, and improving the practicality of the device.

[0005] The utility model discloses a novel paper box bottom folding device, which comprises a lifting mechanism, a folding mechanism and a sealing mechanism, wherein the folding mechanism is connected to the lifting mechanism, and the sealing mechanism is installed on the lifting mechanism; the lifting mechanism is used to limit the load of the paper box body, and the paper box body is lifted to the height of the folding mechanism, and the folding mechanism is used to fold the bottom of the paper box, and the folding mechanism is used to squeeze the bottom of the paper box to form a fixed crease, and the sealing mechanism is used to assist in pressing the folded part of the bottom of the paper box, so that the bottom bending structure is not easy to unfold, so that the bottom of the paper box is in a sealed state when entering the next process, thereby protecting the paper box from damage, and at the same time reducing the time for heating the bottom of the paper box and sealing the bottom of the paper box, so that the bottom of the paper box is more firmly bonded, reducing the problem of paper box leakage, and improving the practicality of the device.

[0006] Preferably, the lifting mechanism comprises a first cylinder (1), a paper box bottom folding seat (2), a cylinder seat (7), a floating joint (8), a guide shaft support (14), a guide shaft (15), and a connecting sleeve (16), wherein the fixed end of the first cylinder (1) is connected to the cylinder seat (7), the movable end of the first cylinder (1) is connected to the connecting sleeve (16) via the floating joint (8), the upper part of the connecting sleeve (16) is connected to the guide shaft (15), the upper part of the guide shaft (15) is connected to the guide shaft support (14), the top of the guide shaft support (14) is connected to the lower end of the paper box bottom folding seat (2), and the lower end of the guide shaft support (14) is connected to the lower end of the paper box bottom folding seat (2). End face connection; providing support and fixing the fixed end of the first cylinder (1) through the cylinder seat (7); controlling the operating height of the paper box bottom folding seat (2) by controlling the elongation of the first cylinder (1) to push the paper box to different heights; reducing the displacement caused by mechanical vibration through the floating joint (8), reducing stress concentration and mechanical wear; supporting and pushing the paper box body through the paper box bottom folding seat (2); providing a smooth and accurate linear motion path for the paper box bottom folding seat (2) through the guide shaft (15) in conjunction with the first cylinder (1), thereby improving the practicality of the device.

[0007] Preferably, the folding mechanism comprises a second cylinder (3), a carton folding sheet (4), a bottom folding seat (9), a folding shaft (17), a gear (18), a second shaft fixing clamp (19) and a third joint bearing (20), wherein the fixed end of the second cylinder (3) is mounted on the right side of the upper end face of the bottom folding seat (9) through the shaft seat, a through hole is provided on the upper end face of the bottom folding seat (9), the guide shaft (15) passes through the through hole on the bottom folding seat (9) and extends to the upper side of the bottom folding seat (9), two groups of folding shafts (17) are horizontally mounted on the upper end face of the bottom folding seat (9) through a bracket, and a group of gears (18) are respectively mounted on the two groups of folding shafts (17), the two groups of gears (18) are meshed and connected, and the two groups of folding shafts (17) are meshed and connected. ) are respectively installed with a group of paper box folding pieces (4), the moving end of the second cylinder (3) is connected to one end of the second shaft fixing clamp (19) through the third joint bearing (20), and the outside of a group of folding shafts (17) is connected to the other end of the second shaft fixing clamp (19); the second cylinder (3) is controlled to extend and contract to cooperate with the second shaft fixing clamp (19) and the third joint bearing (20) to drive, thereby driving the folding shaft (17) connected to the second shaft fixing clamp (19) to rotate, and the two groups of paper box folding pieces (4) are driven to rotate simultaneously through the meshing transmission of the two groups of gears (18), and the bottom of the paper box is folded in cooperation with the paper box bottom folding seat (2), and the bottom of the paper box is folded with marks through the pressure applied by the paper box folding pieces (4), thereby improving the practicality of the device.

[0008] Preferably, the sealing mechanism comprises a third cylinder (5), a carton bottom sealing plate (6), a first joint bearing (10), a first shaft fixing frame (11), a second joint bearing (13), a sealing rotating shaft (23), a third shaft fixing clamp (24) and a transmission connecting rod (25), the front end surface of the carton bottom folding seat (2) is mounted with a third cylinder (5) through a bracket, a group of sealing rotating shafts (23) are respectively mounted horizontally on the left and right sides of the upper end surface of the carton bottom folding seat (2), a group of carton bottom sealing plates (6) are respectively mounted on the two groups of sealing rotating shafts (23), the rear ends of the two groups of sealing rotating shafts (23) pass through the rear end surface of the carton bottom folding seat (2) and extend to the rear side of the carton bottom folding seat (2) and are respectively connected to a group of third shaft fixing clamps (24), and the rotating ends of the two groups of third shaft fixing clamps (24) are respectively mounted through a group of third shaft fixing clamps (24). The two joint bearings (13) are connected to both ends of the transmission connecting rod (25); the first joint bearing (10) is connected to the moving end of the third cylinder (5); the upper part of the first joint bearing (10) is connected to the first shaft fixing frame (11); the upper part of the first shaft fixing frame (11) is connected to the front part of the right sealing rotating shaft (23); the telescopic movement of the moving end of the third cylinder (5) is controlled to cooperate with the first joint bearing (10) and the first shaft fixing frame (11) to drive the right sealing rotating shaft (23) to rotate; the two groups of sealing rotating shafts (23) are driven to rotate simultaneously through the transmission connecting rod (25), the second joint bearing (13) and the third shaft fixing clamp (24), driving the carton bottom sealing plate (6) to rotate, thereby supporting the area where the carton is folded, making it difficult for the bottom of the carton to unfold, facilitating subsequent operations, and improving the practicality of the device.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the load-bearing position of the paper box body is limited by the lifting mechanism, and the paper box body is lifted to the height of the folding mechanism, and the bottom of the paper box is folded in cooperation with the folding mechanism, and the bottom of the paper box is squeezed by the folding mechanism to form a fixed crease, and the folded part of the bottom of the paper box is assisted by the sealing mechanism to press the folded part, so that the bottom bending structure is not easy to unfold, so that the bottom of the paper box is in a sealed state when entering the next process, protecting the paper box from damage, and at the same time reducing the time for heating the bottom of the paper box and sealing the bottom of the paper box, making the bottom of the paper box more firmly bonded, reducing the problem of paper box leakage, and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a front view structural diagram of the present utility model;

[0011] Figure 2 It is a side view structural diagram of the utility model;

[0012] Figure 3 This is an axonometric structural diagram of the present utility model;

[0013] Figure 4This is a schematic diagram of the top view of the structure of the utility model;

[0014] Figure 5 It is a partial enlarged structural schematic diagram of the utility model;

[0015] Figure 6 This is a schematic diagram of the crease structure at the bottom of the product;

[0016] Markings in the accompanying drawings: 1. First cylinder; 2. Carton bottom folding seat; 3. Second cylinder; 4. Carton folding piece; 5. Third cylinder; 6. Carton bottom sealing plate; 7. Cylinder seat; 8. Floating joint; 9. Bottom folding seat; 10. First joint bearing; 11. First axis fixing bracket; 12. Linear slide rail; 13. Second joint bearing; 14. Guide shaft support; 15. Guide shaft; 16. Connecting sleeve; 17. Folding shaft; 18. Gear; 19. Second axis fixing clamp; 20. Third joint bearing; 23. Sealing shaft; 24. Third axis fixing clamp; 25. Transmission connecting rod. DETAILED DESCRIPTION

[0017] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention. Example

[0018] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The folding mechanism shown is connected to the lifting mechanism, and the sealing mechanism is installed on the lifting mechanism;

[0019] First, control the extension of the first cylinder 1 to lift the carton to the required processing height, and then control the second cylinder 3 to extend and retract to cooperate with the second axis fixing clamp 19 and the third joint bearing 20 to drive, thereby driving the folding shaft 17 connected to the second axis fixing clamp 19 to rotate, and through the meshing transmission of the two sets of gears 18, drive the two sets of carton folding pieces 4 to rotate at the same time, and cooperate with the carton bottom folding seat 2 to fold the bottom of the carton, and fold the bottom of the carton with the pressure applied by the carton folding piece 4. Then, the second cylinder 3 contracts to restore the bent part of the carton bottom to its original position, and then control the extension and retraction of the moving end of the third cylinder 5 to cooperate with the first joint bearing 10 and the first axis fixing frame 11 to drive the right sealing shaft 23 to rotate. The two sets of sealing shafts 23 are driven and rotated simultaneously through the transmission connecting rod 25, the second joint bearing 13 and the third axis fixing clamp 24, driving the carton bottom sealing plate 6 to rotate, thereby supporting the area where the carton has completed the folding, so that the bottom of the carton is not easy to unfold, and then enter the next process;

[0020] The lifting mechanism includes a first cylinder 1, a carton bottom folding seat 2, a cylinder seat 7, a floating joint 8, a guide shaft support 14, a guide shaft 15, and a connecting sleeve 16. The fixed end of the first cylinder 1 is connected to the cylinder seat 7, and the movable end of the first cylinder 1 is connected to the connecting sleeve 16 via the floating joint 8. The upper part of the connecting sleeve 16 is connected to the guide shaft 15, and the upper part of the guide shaft 15 is connected to the guide shaft support 14. The top of the guide shaft support 14 is connected to the lower end surface of the carton bottom folding seat 2;

[0021] The folding mechanism includes a second cylinder 3, a carton folding piece 4, a bottom folding seat 9, a folding shaft 17, a gear 18, a second shaft fixing clamp 19 and a third joint bearing 20. The fixed end of the second cylinder 3 is installed on the right side of the upper end surface of the bottom folding seat 9 through the shaft seat. A through hole is provided on the upper end surface of the bottom folding seat 9. The guide shaft 15 passes through the through hole on the bottom folding seat 9 and extends to the upper side of the bottom folding seat 9. Two groups of folding shafts 17 are horizontally installed on the upper end surface of the bottom folding seat 9 through a bracket. The two groups of folding shafts 17 are respectively provided with a group of gears 18. The two groups of gears 18 are meshed and connected. A group of carton folding pieces 4 are respectively installed on the two groups of folding shafts 17. The moving end of the second cylinder 3 is connected to one end of the second shaft fixing clamp 19 through the third joint bearing 20. The outside of a group of folding shafts 17 is connected to the other end of the second shaft fixing clamp 19.

[0022] The sealing mechanism includes a third cylinder 5, a carton bottom sealing plate 6, a first joint bearing 10, a first shaft fixing frame 11, a second joint bearing 13, a sealing rotating shaft 23, a third shaft fixing clamp 24 and a transmission connecting rod 25. The third cylinder 5 is installed on the front end surface of the carton bottom folding seat 2 through a bracket, and a group of sealing rotating shafts 23 are horizontally installed on the left and right sides of the upper end surface of the carton bottom folding seat 2. A group of carton bottom sealing plates 6 are respectively installed on the two groups of sealing rotating shafts 23. The rear parts of the two groups of sealing rotating shafts 23 pass through the rear end surface of the carton bottom folding seat 2 and extend to the rear side of the carton bottom folding seat 2 and are respectively connected to a group of third shaft fixing clamps 24. The rotating ends of the two groups of third shaft fixing clamps 24 are respectively connected to the two ends of the transmission connecting rod 25 through a group of second joint bearings 13. The moving end of the third cylinder 5 is connected to the first joint bearing 10, the upper part of the first joint bearing 10 is connected to the first shaft fixing frame 11, and the upper part of the first shaft fixing frame 11 is connected to the front of the right sealing rotating shaft 23;

[0023] The lifting mechanism is used to limit the load on the carton body and lift the carton body to the height of the folding mechanism. The folding mechanism is used to fold the bottom of the carton. The folding mechanism is used to squeeze the bottom of the carton to form a fixed crease. The sealing mechanism is used to assist in pressing the folded part of the bottom of the carton, so that the bottom bending structure is not easy to unfold. The bottom of the carton is in a sealed state when entering the next process, protecting the carton from damage. At the same time, the time for heating and sealing the bottom of the carton is reduced, making the bottom of the carton more firmly bonded, reducing the problem of carton leakage, and improving the practicality of the device.

[0024] like Figures 1 to 5 As shown, the utility model is a novel carton bottom folding device. When it is working, it first controls the extension of the first cylinder 1 to lift the carton to the required processing height, and then controls the second cylinder 3 to extend and retract to cooperate with the second axis fixing clamp 19 and the third joint bearing 20 to drive, thereby driving the folding shaft 17 connected to the second axis fixing clamp 19 to rotate, and the two sets of carton folding pieces 4 are driven to rotate simultaneously through the meshing transmission of the two sets of gears 18, and cooperate with the carton bottom folding seat 2 to fold the bottom of the carton, and the pressure applied by the carton folding piece 4 The force folds the bottom of the carton into a mark, and then the second cylinder 3 contracts to restore the bent part of the bottom of the carton to its original position. Then, the telescopic movement of the moving end of the third cylinder 5 is controlled to cooperate with the first joint bearing 10 and the first axis fixing frame 11 to drive the right sealing shaft 23 to rotate. The two sets of sealing shafts 23 are driven by the transmission connecting rod 25, the second joint bearing 13 and the third axis fixing clamp 24 to rotate simultaneously, driving the bottom sealing plate 6 of the carton to rotate, thereby supporting the area where the folding of the carton is completed, so that the bottom of the carton is not easy to unfold, and then enter the next process.

[0025] The first cylinder 1, the second cylinder 3 and the third cylinder 5 of the novel paper box bottom folding device of the utility model are purchased on the market. Technicians in this industry only need to install and operate them according to the accompanying instruction manual without the need for creative work by technicians in this field.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A new type of carton bottom folding device; characterized in that, The utility model comprises a lifting mechanism, a folding mechanism and a sealing mechanism. The folding mechanism is connected with the lifting mechanism, and the sealing mechanism is installed on the lifting mechanism.

2. A novel carton bottom folding device as claimed in claim 1, characterized in that: The lifting mechanism includes a first cylinder (1), a paper box bottom folding seat (2), a cylinder seat (7), a floating joint (8), a guide shaft support (14), a guide shaft (15), and a connecting sleeve (16). The fixed end of the first cylinder (1) is connected to the cylinder seat (7), the movable end of the first cylinder (1) is connected to the connecting sleeve (16) through the floating joint (8), the upper part of the connecting sleeve (16) is connected to the guide shaft (15), the upper part of the guide shaft (15) is connected to the guide shaft support (14), and the top of the guide shaft support (14) is connected to the lower end surface of the paper box bottom folding seat (2).

3. A novel carton bottom folding device as claimed in claim 2, characterized in that: The folding mechanism includes a second cylinder (3), a carton folding sheet (4), a bottom folding seat (9), a folding shaft (17), a gear (18), a second shaft fixing clamp (19) and a third joint bearing (20). The fixed end of the second cylinder (3) is mounted on the right side of the upper end surface of the bottom folding seat (9) through the shaft seat. A through hole is provided on the upper end surface of the bottom folding seat (9). The guide shaft (15) passes through the through hole on the bottom folding seat (9) and extends to the upper side of the bottom folding seat (9). The bottom folding seat ( 9) is horizontally mounted with two sets of folding shafts (17) through a bracket on the upper end surface, and a set of gears (18) are respectively mounted on the two sets of folding shafts (17), and the two sets of gears (18) are meshed and connected. A set of paper box folding sheets (4) are respectively mounted on the two sets of folding shafts (17), and the moving end of the second cylinder (3) is connected to one end of the second shaft fixing clamp (19) through the third joint bearing (20), and the outside of a set of folding shafts (17) is connected to the other end of the second shaft fixing clamp (19).

4. A novel carton bottom folding device as claimed in claim 3, characterized in that: The sealing mechanism comprises a third cylinder (5), a carton bottom sealing plate (6), a first joint bearing (10), a first shaft fixing frame (11), a second joint bearing (13), a sealing rotating shaft (23), a third shaft fixing clamp (24) and a transmission connecting rod (25). The third cylinder (5) is mounted on the front end surface of the carton bottom folding seat (2) through a bracket. A set of sealing rotating shafts (23) are respectively mounted horizontally on the left and right sides of the upper end surface of the carton bottom folding seat (2). A set of carton bottom sealing plates (6) are respectively mounted on the two sets of sealing rotating shafts (23). The two sets of sealing rotating shafts (23) are respectively mounted on the two sets of sealing rotating shafts (23). The rear parts of the two sets of third axis fixing clamps (24) pass through the rear end surface of the paper box bottom folding seat (2) and extend to the rear side of the paper box bottom folding seat (2) and are respectively connected to a set of third axis fixing clamps (24). The rotating ends of the two sets of third axis fixing clamps (24) are respectively connected to the two ends of the transmission connecting rod (25) through a set of second joint bearings (13). The moving end of the third cylinder (5) is connected to the first joint bearing (10). The upper part of the first joint bearing (10) is connected to the first axis fixing frame (11). The upper part of the first axis fixing frame (11) is connected to the front part of the right sealing shaft (23).

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