Packaging paper sealing mechanism

Abstract

The utility model relates to the technical field of sealing mechanisms, in particular to a packaging paper sealing mechanism which comprises a base frame, a conveying belt is installed in the middle of the base frame, a top pressing assembly is arranged at the top end of the base frame, upper folding and pressing assemblies are arranged at the two ends of the top pressing assembly, and a bracket is installed below the conveying belt. A left folding and pressing assembly, a right folding and pressing assembly and two symmetrical lower folding and pressing assemblies are installed on the bracket, and the left folding and pressing assembly and the right folding and pressing assembly are both connected with a driving motor. The problems of tedious structure and poor synchronism in the prior art are solved, meanwhile, fault points are reduced, later overhaul and maintenance are facilitated, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing mechanisms, specifically a sealing mechanism for packaging paper. Background Technology

[0002] Book printing has gradually shifted from manual labor to mechanized assembly line production. After printing, books need to be packaged in kraft paper. After packaging, the packages need to be labeled for easy sorting during transportation and sale. During packaging, a wrapping mechanism is used to cover the book surface with kraft paper. After wrapping, the protruding kraft paper rolls on both sides of the book need to be folded inwards to seal the edges, ensuring the entire kraft paper adheres to the book. However, current wrapping mechanisms are overly complex. For example, they require eight cylinders on both ends of the book to drive corresponding folding plates to complete the sealing operation. Each cylinder needs independent control, resulting in poor synchronization between structures and hindering later maintenance. Utility Model Content

[0003] The purpose of this invention is to provide a packaging paper sealing mechanism to solve the problems mentioned in the background art.

[0004] The technical solution of this utility model is: a packaging paper sealing mechanism, including a base frame, a conveyor belt installed in the middle of the base frame, a top pressing component provided at the top of the base frame, upper folding pressing components provided at both ends of the top pressing component, a bracket installed below the conveyor belt, a left folding pressing component, a right folding pressing component and two symmetrical lower folding pressing components installed on the bracket, and a drive motor connected to both the left folding pressing component and the right folding pressing component.

[0005] The effects achieved by the above components are as follows: By integrating the conveyor belt, bracket, and folding assembly into the base frame, and using a drive motor to uniformly drive the left and right folding assemblies, compared to the complex structure of existing technologies that require multiple independent cylinders, the number of driving components is reduced, the mechanical architecture is simplified, and the top pressing assembly cooperates with the upper, lower, left, and right folding assemblies to achieve multi-component collaborative operation through a single motor drive. This reduces the complexity of the control system, improves the synchronization of each folding action, solves the problems of cumbersome structure and poor synchronization in existing technologies, reduces failure points, facilitates later inspection and maintenance, and reduces production costs.

[0006] Preferably, the left folding and pressing assembly includes a first rotating shaft rotatably mounted on the bracket, with left folding and pressing plates symmetrically distributed on both sides of the conveyor belt fixed on the first rotating shaft, and one end of the first rotating shaft being connected to the drive motor.

[0007] The effects achieved by the above components are as follows: the drive motor directly drives the first rotating shaft to rotate and fold the left folding plate, replacing the reciprocating linear motion of the cylinder in the prior art. The folding of the left side of the paper is achieved through a single rotational motion. The rotational transmission method has higher motion continuity, avoids the synchronization error caused by frequent start and stop of the cylinder, improves the stability and consistency of the folding action, and at the same time reduces mechanical wear, extends equipment life, and reduces maintenance costs.

[0008] Preferably, the right-folding assembly includes a second rotating shaft rotatably mounted on the bracket, with right-folding plates symmetrically distributed on both sides of the conveyor belt fixed on the second rotating shaft, and one end of the second rotating shaft being connected to the drive motor via a sprocket.

[0009] The effects achieved by the above components are as follows: the drive motor and the second rotating shaft are connected by a sprocket drive. The sprocket drive has the advantages of precise transmission ratio and less slippage, which ensures that the right folding pressure plate can avoid paper misalignment or uneven force due to asynchronous power during folding operation. At the same time, it reduces the number of drive motors, simplifies the mechanical layout, and reduces the difficulty of equipment debugging and maintenance.

[0010] Preferably, the blade area of ​​the right-folding pressure plate is larger than that of the left-folding pressure plate.

[0011] The effect achieved by the above components is that the fan blade area of ​​the right folding pressure plate is larger than that of the left folding pressure plate, which can adapt to the different folding pressure requirements of the two sides of the paper (such as one side requiring a larger folding pressure range), and improve the equipment's adaptability to different paper sizes.

[0012] Preferably, the top edges of both the left and right folding pressure plates are provided with outwardly curved bends.

[0013] The effects achieved by the above-mentioned components are as follows: the guiding effect of the bending edge can reduce the direct impact between the paper and the folding plate during folding, avoiding the problems of paper tearing or irregular folding corners caused by the rapid action of the cylinder in the prior art. This structure does not require additional buffer cylinders or complex guiding mechanisms. It can achieve gentle folding simply by optimizing the shape of the folding plate itself, which simplifies the mechanical structure, improves the folding quality, reduces rework or equipment downtime due to paper damage, and indirectly reduces production and maintenance costs.

[0014] Preferably, a symmetrical lifting mechanism is installed inside the base frame. The lifting mechanism includes a drive screw installed on the side of the base frame and two symmetrical guide rods. A lifting block is threaded onto the top of the drive screw, and two sliders are slidably mounted on the guide rods. A side plate connected to the bracket and the top pressure assembly is fixed on the same side of the lifting block and the sliders.

[0015] The effect achieved by the above components is as follows: the lifting mechanism realizes the synchronous lifting of the bracket and the top pressing component through the cooperation of the drive screw and the guide rod, and works in coordination with the independent drive mode of the left and right folding pressing components. When handling goods of different thicknesses, the lifting mechanism can quickly adjust the height of the bracket.

[0016] Preferably, the top pressing assembly includes a top frame fixed to the top of the side plate, a lifting cylinder fixed to the top of the top frame, a top pressing plate fixed to the bottom of the lifting cylinder, and the upper folding pressing assembly fixed to the end side of the top frame.

[0017] The effect achieved by the above components is that the top pressure assembly drives the top pressure plate to move downward through the lifting cylinder to press and position the packaging paper wrapped around the book, so as to avoid the folding action causing the paper to loosen and affect the sealing effect.

[0018] Preferably, the upper folding and pressing assembly includes an end plate fixed to the end side of the top frame, a first cylinder fixed to one side of the end plate, and an upper folding and pressing plate connected to the bottom end of the first cylinder.

[0019] The effect achieved by the above components is that the upper folding and pressing assembly drives the upper folding and pressing plate through a single first cylinder to achieve the purpose of one-time folding and pressing of the top edge.

[0020] Preferably, the downward folding assembly includes a second cylinder fixed to the outside of the bracket, and a downward folding plate is connected to the top of the second cylinder.

[0021] The effect achieved by the above components is that the lower folding and pressing assembly drives the lower folding and pressing plate through a single second cylinder to achieve the purpose of one-time folding and pressing of the bottom edge.

[0022] Preferably, the lower folding pressure plate and the upper folding pressure plate have inclined surfaces on their adjacent sides.

[0023] The aforementioned components achieve the following effects: the guiding effect of the inclined plane allows the upper and lower folding plates to make progressive contact during folding, replacing the impact force concentration problem caused by vertical folding in existing technologies, eliminating the need for additional buffer cylinders or elastic components. This structure, through geometric optimization, reduces the power requirements for folding, allowing the use of smaller cylinders (reducing the number or power of cylinders), further simplifying the power system, while also reducing the risk of paper breakage, lowering the frequency of equipment downtime for maintenance due to quality issues, and improving production efficiency and maintenance convenience.

[0024] This utility model provides an improved sealing mechanism for packaging paper, which has the following improvements and advantages compared with the prior art:

[0025] Firstly, this utility model integrates the conveyor belt, bracket, and folding assembly into a base frame, and uses a drive motor to uniformly drive the left and right folding assemblies. Compared to the complex structure of existing technologies that require multiple independent cylinders, this reduces the number of driving components and simplifies the mechanical architecture. The top pressing assembly works in conjunction with the upper, lower, left, and right folding assemblies, achieving coordinated operation of multiple components through a single motor drive. This reduces the complexity of the control system, improves the synchronization of each folding action, solves the problems of cumbersome structure and poor synchronization in existing technologies, reduces failure points, facilitates later inspection and maintenance, and reduces production costs.

[0026] Secondly, the present invention uses a drive motor to directly drive the first and second rotating shafts to rotate and fold the left and right folding plates, replacing the reciprocating linear motion of the cylinder in the prior art. The folding of the left side of the paper is achieved through a single rotational motion. The rotational transmission method has higher motion continuity, avoids synchronization errors caused by frequent start and stop of the cylinder, and improves the stability and consistency of the folding action. Attached Figure Description

[0027] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0028] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0029] Figure 2 This is a three-dimensional structural diagram of the lower folding and pressing component in this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Base frame; 2. Lifting mechanism; 21. Drive screw; 22. Lifting block; 23. Guide rod; 24. Slider; 3. Side plate; 4. Conveyor belt; 5. Bracket; 6. Top pressing assembly; 61. Top frame; 62. Lifting cylinder; 63. Top pressing plate; 7. Upper folding pressing assembly; 71. End plate; 72. First cylinder; 73. Upper folding pressing plate; 8. Left folding pressing assembly; 81. First rotating shaft; 82. Left folding pressing plate; 83. Bending edge; 9. Right folding pressing assembly; 91. Second rotating shaft; 92. Right folding pressing plate; 10. Drive motor; 11. Lower folding pressing assembly; 111. Second cylinder; 112. Lower folding pressing plate; 113. Inclined surface. Detailed Implementation

[0032] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0033] This utility model provides an improved sealing mechanism for packaging paper. The technical solution of this utility model is as follows:

[0034] In embodiments of this utility model, such as Figures 1-2 As shown, a packaging paper sealing mechanism includes a base frame 1, a conveyor belt 4 installed in the middle of the base frame 1, a top pressing assembly 6 at the top of the base frame 1, the top pressing assembly 6 including a top frame 61 fixed to the top of a side plate 3, a lifting cylinder 62 fixed to the top of the top frame 61, a top pressing plate 63 fixed to the bottom of the lifting cylinder 62, and an upper folding pressing assembly 7 fixed to the end side of the top frame 61. The top pressing assembly 6 drives the top pressing plate 63 to move downward through the lifting cylinder 62 to press and position the packaging paper wrapped around the book, avoiding the folding action from causing the paper to loosen and affecting the sealing effect. Upper folding pressing assemblies 7 are provided at both ends of the top pressing assembly 6. A bracket 5 is installed below the conveyor belt 4, and a left folding pressing assembly 8 and a right folding pressing assembly 9, as well as two symmetrical components, are installed on the bracket 5. The lower folding and pressing assembly 11, the left folding and pressing assembly 8, and the right folding and pressing assembly 9 are all connected to drive motors 10. A symmetrical lifting mechanism 2 is installed inside the base frame 1. The lifting mechanism 2 includes a drive screw 21 installed on the side of the base frame 1 and two symmetrical guide rods 23. A lifting block 22 is threaded on the top of the drive screw 21. Two sliders 24 are slidably mounted on the guide rods 23. A side plate 3 connected to the bracket 5 and the top pressing assembly 6 is fixed on the same side of the lifting block 22 and the sliders 24. The lifting mechanism 2 realizes the synchronous lifting of the bracket 5 and the top pressing assembly 6 through the cooperation of the drive screw 21 and the guide rods 23. It works in coordination with the independent drive mode of the left and right folding and pressing assemblies. When handling goods of different thicknesses, the lifting mechanism 2 can quickly adjust the height of the bracket 5.

[0035] In this embodiment of the invention, the left folding and pressing assembly 8 includes a first rotating shaft 81 rotatably mounted on the bracket 5. Left folding and pressing plates 82 symmetrically distributed on both sides of the conveyor belt 4 are fixed on the first rotating shaft 81. One end of the first rotating shaft 81 is connected to a drive motor 10. The right folding and pressing assembly 9 includes a second rotating shaft 91 rotatably mounted on the bracket 5. Right folding and pressing plates 92 symmetrically distributed on both sides of the conveyor belt 4 are fixed on the second rotating shaft 91. One end of the second rotating shaft 91 is connected to a drive motor 10 via a sprocket. The two drive motors 10 can respectively drive the first rotating shaft 81 and the second rotating shaft 91. The shaft 91 rotates, thereby driving the two left folding pressure plates 82 and the two right folding pressure plates 92 to perform rotational folding operations. The blade area of ​​the right folding pressure plate 92 is larger than that of the left folding pressure plate 82, which can adapt to the different folding requirements of the two sides of the paper (such as one side requiring a larger folding range). The top edges of the left folding pressure plate 82 and the right folding pressure plate 92 are both equipped with outwardly curved bending edges 83. The guiding effect of the bending edges 83 can reduce the direct impact between the paper and the folding pressure plate during folding, avoiding the problems of paper tearing or irregular folding angles caused by the rapid movement of the cylinder in the prior art.

[0036] In an embodiment of this utility model, the upper folding and pressing assembly 7 includes an end plate 71 fixed to the end side of the top frame 61. A first cylinder 72 is fixed to one side of the end plate 71. The bottom end of the first cylinder 72 is connected to an upper folding and pressing plate 73. The upper folding and pressing assembly 7 drives the upper folding and pressing plate 73 through a single first cylinder 72 to achieve the purpose of one-time folding and pressing of the top edge. The lower folding and pressing assembly 11 includes a second cylinder 111 fixed to the outside of the bracket 5. The top end of the second cylinder 111 is connected to a lower folding and pressing plate 112. The lower folding and pressing assembly 11 drives the lower folding and pressing plate 112 through a single second cylinder 111 to achieve the purpose of one-time folding and pressing of the bottom edge. The adjacent sides of the lower folding and pressing plate 112 and the upper folding and pressing plate 73 are provided with inclined surfaces 113. The guiding effect of the inclined surfaces 113 makes the upper and lower folding and pressing plates form a progressive contact during folding and pressing, replacing the problem of concentrated impact force caused by vertical folding and pressing in the prior art.

[0037] The working principle of the packaging paper sealing mechanism provided by this utility model is as follows: First, through the cooperation of the drive screw 21 and the guide rod 23, the bracket 5 and the top pressing component 6 are raised and lowered synchronously. When handling goods of different thicknesses, the lifting mechanism 2 can quickly adjust the height of the bracket 5. After the conveyor belt 4 transports the bundled books to the bottom of the top pressing component 6, the lifting cylinder 62 drives the top pressing plate 63 to move downward to press and position the packaging paper wrapped around the books. The second cylinder 111 drives the lower folding pressure plate 112 to move upward to fold the packaging paper at the top edge of the books upward. Then, the drive motor 10 can drive the first rotating shaft 81 and the second rotating shaft 91 to rotate, wherein the left folding pressure plate 82 and the right folding pressure plate 92 move upward. The book flips inward, folding the packaging paper on both sides of the book inward. At this time, the left folding plate 82 and the right folding plate 92 are attached to the side of the book. Then, the first cylinder 72 drives the upper folding plate 73 to move downward, folding the packaging paper at the top edge of the book downward. Then, the first rotating shaft 81 and the second rotating shaft 91 continue to drive the left folding plate 82 and the right folding plate 92 to flip inward. At this time, the second cylinder 111 drives the lower folding plate 112 to reset downward until the left folding plate 82, the right folding plate 92 and the lower folding plate 112 are simultaneously detached from the book. The top pressure plate 63 resets, and the conveyor belt 4 outputs the sealed and packaged book to the station. Finally, the upper top pressure plate 72, the left folding plate 82 and the right folding plate 92 reset.

[0038] 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 wrapping paper sealing mechanism comprising a base frame (1) in which a conveyor belt (4) is mounted in the middle, characterized in that: The top end of the base frame (1) is provided with a top pressing assembly (6), both ends of the top pressing assembly (6) are provided with an upper folding pressing assembly (7), a bracket (5) is installed below the conveying belt (4), a left folding pressing assembly (8) and a right folding pressing assembly (9) and two symmetrical lower folding pressing assemblies (11) are installed on the bracket (5), and the left folding pressing assembly (8) and the right folding pressing assembly (9) are both connected with a driving motor (10).

2. A wrapping paper sealing mechanism according to claim 1, characterized in that: The left folding pressing assembly (8) comprises a first rotating shaft (81) rotatably installed on the bracket (5), a left folding pressing plate (82) symmetrically distributed on both sides of the conveying belt (4) is fixed on the first rotating shaft (81), and one end of the first rotating shaft (81) is in transmission connection with the driving motor (10).

3. A wrapping paper sealing mechanism according to claim 2, wherein: The right folding pressing assembly (9) comprises a second rotating shaft (91) rotatably installed on the bracket (5), a right folding pressing plate (92) symmetrically distributed on both sides of the conveying belt (4) is fixed on the second rotating shaft (91), and one end of the second rotating shaft (91) is in transmission connection with the driving motor (10) through a chain wheel.

4. A wrapping paper sealing mechanism according to claim 3, wherein: The fan area of the right folding pressing plate (92) is larger than that of the left folding pressing plate (82).

5. A wrapping paper sealing mechanism according to claim 4, wherein: The top end edges of the left folding pressing plate (82) and the right folding pressing plate (92) are clamped with outwardly tilted bending edges (83).

6. A wrapping paper sealing mechanism according to claim 1, wherein: The base frame (1) is provided with symmetrical lifting mechanisms (2), the lifting mechanism (2) comprises a driving screw (21) installed on the side of the base frame (1) and two symmetrical guide rods (23), a lifting block (22) is threadedly sleeved at the top end of the driving screw (21), two sliding blocks (24) are slidably sleeved on the guide rods (23), and the same side of the lifting block (22) and the sliding block (24) is fixed with a side plate (3) connected with the bracket (5) and the top pressing assembly (6).

7. A wrapping paper sealing mechanism according to claim 6, wherein: The top pressing assembly (6) comprises a top frame (61) fixed on the top of the side plate (3), a lifting cylinder (62) is fixed at the top end of the top frame (61), a top pressing plate (63) is fixed at the bottom end of the lifting cylinder (62), and the upper folding pressing assembly (7) is fixed on the end side of the top frame (61).

8. A wrapping paper sealing mechanism according to claim 7, wherein: The upper folding pressing assembly (7) comprises an end plate (71) fixed on the end side of the top frame (61), a first cylinder (72) is fixed on one side of the end plate (71), and an upper folding pressing plate (73) is connected to the bottom end of the first cylinder (72).

9. A wrapping paper sealing mechanism according to claim 8, wherein: The lower folding pressing assembly (11) comprises a second cylinder (111) fixed on the outer side of the bracket (5), and a lower folding pressing plate (112) is connected to the top end of the second cylinder (111).

10. A wrapping paper sealing mechanism according to claim 9, wherein: The lower folding pressing plate (112) and the upper folding pressing plate (73) are provided with inclined surfaces (113) on adjacent side edges.

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