Paper bag turnover device of paper bag production line

Abstract

The utility model relates to a paper bag turnover device of a paper bag production line, which belongs to the technical field of paper bag processing and comprises an upper conveying belt and a lower conveying belt arranged at the bottom of one end of the upper conveying belt. A limiting frame is fixedly arranged on the upper conveying belt, a U-shaped baffle abutting against the top of the lower conveying belt in a matched mode is fixedly arranged at the bottom of the limiting frame, and an arrangement mechanism is arranged in the U-shaped baffle. The stacked paper bags falling off from the upper conveying belt can be turned over under limiting and fall into the U-shaped baffle of the lower conveying belt through conveying of the upper conveying belt and guiding limiting of the limiting frame; the stacked and distributed paper bags can be turned over together, the overturning efficiency of the paper bags is improved, and after components such as a first push plate in the sorting mechanism move, the overturned and stacked and distributed paper bags can be pushed and sorted, so that the overturned and stacked paper bags can be placed in order, and subsequent processing of the paper bags is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of paper bag processing technology, and specifically relates to a paper bag turning device for a paper bag production line. Background Technology

[0002] A paper bag production line is a type of equipment used to produce paper bags efficiently and quickly. This type of production line typically consists of multiple precision mechanical parts, capable of completing the production of paper bags in a very short time. Specifically, the working principle of a paper bag production line is to feed paper into the machine, and through a series of mechanical actions such as cutting, folding, and gluing, automatically complete the forming and production of the paper bag. During processing within the paper bag production line, operations such as printing on both sides of the paper bag or flipping and packaging the paper bag are required; therefore, a flipping device is needed to turn the paper bag over.

[0003] Patent CN221395886U discloses "a paper bag turning machine for printing labels on paper bags, including a first conveyor belt and a second conveyor belt, wherein the height of the second conveyor belt is greater than the height of the first conveyor belt. This utility model adopts a structural design that adds a paper bag turning machine to the paper bag production line. After the paper bag is processed and formed, it can be turned to face up under the operation of this structure, realizing the automatic turning of the paper bag, so as to facilitate the subsequent processing of the front of the paper bag, saving the manual turning process, reducing manpower input, speeding up the processing speed of paper bags, and improving the production efficiency of paper bags."

[0004] Although the aforementioned document allows paper bags to be flipped, it can only flip the paper bags one by one. When flipping multiple stacked paper bags, centrifugal force can easily cause some paper bags to fly out, making it impossible to flip the stacked paper bags together. The flipping efficiency is low and therefore needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a paper bag turning device for a paper bag production line in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A paper bag turning device for a paper bag production line includes an upper conveyor belt and a lower conveyor belt located at the bottom of one end of the upper conveyor belt. A limiting frame for guiding and limiting stacked paper bags falling and turning on the upper conveyor belt is fixedly provided at the bottom of one end of the upper conveyor belt. A U-shaped baffle that abuts against the top of the lower conveyor belt is fixedly provided at the bottom of the limiting frame.

[0008] The U-shaped baffle is equipped with a sorting mechanism, which includes two first push plates movably disposed on both sides of the inner wall of the U-shaped baffle for pushing and sorting the stacked paper bags after flipping, and a second push plate rotatably disposed at the bottom of the U-shaped baffle for pushing and sorting the stacked paper bags towards the inside of the U-shaped baffle after rotation. The bottom of the outer side of the U-shaped baffle is equipped with a blower mechanism for blowing air onto the surface of the lower conveyor belt.

[0009] As a further optimization of this utility model, two sets of multi-stage electric push rods for driving the first push plates to move are fixedly installed between the two sides of the inner wall of the U-shaped baffle and the two first push plates.

[0010] As a further optimization of this utility model, a fixing plate is fixedly provided on the top of the outer side of the limiting frame, and an electric telescopic rod for driving the second push plate to rotate is rotatably provided between the bottom of the fixing plate and one side of the second push plate.

[0011] As a further optimization of this utility model, the hair dryer structure includes a blower box that is fixedly disposed at the bottom of the outer side of the U-shaped baffle and is hollow inside.

[0012] As a further optimization of this utility model, two sets of sealing boxes are fixedly provided on both sides of the inner wall of the U-shaped baffle, and a one-way exhaust pipe with its bottom end penetrating through and extending into the air blower box is fixedly provided at the bottom of the sealing box.

[0013] As a further optimization of this utility model, a matching piston plate is slidably provided inside the sealing box, and a connecting rod that penetrates the sealing box is fixed between one side of the piston plate and the outer wall of the first push plate. A one-way air inlet pipe is fixed between the end of the sealing box away from the connecting rod and the U-shaped baffle.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Through the conveying of the upper conveyor belt and the guiding and limiting of the limiting frame, the stacked paper bags falling from the upper conveyor belt can be flipped under the limit and fall into the U-shaped baffle of the lower conveyor belt. This allows the stacked paper bags to be flipped together, improving the efficiency of paper bag flipping. After the first push plate and other components in the sorting mechanism move, they can push and sort the flipped stacked paper bags together, so that the flipped stacked paper bags can be arranged neatly, which is convenient for subsequent processing of paper bags.

[0016] 2. The paper bags, after being flipped and stacked, can be transported to the subsequent processing equipment of the paper bag production line by the lower conveyor belt. After the multi-stage electric push rod is shortened, it will use components such as piston plates to send the air in the sealed box into the air blowing box. The air force discharged from the air blowing box can partially blow away dust from the surface of the lower conveyor belt, thereby improving the cleanliness of the lower conveyor belt surface. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is the utility model Figure 1 Enlarged view of a local structure in the middle;

[0019] Figure 3 This is the utility model Figure 2 Enlarged view of the A-structure;

[0020] Figure 4 This is a schematic diagram of the internal structure of the sealed box of this utility model;

[0021] Figure 5 This is a schematic diagram of the U-shaped baffle structure of this utility model.

[0022] In the diagram: 1. Upper conveyor belt; 11. Lower conveyor belt; 2. Limiting frame; 3. U-shaped baffle; 31. First push plate; 32. Second push plate; 33. Multi-stage electric push rod; 34. Electric telescopic rod; 35. Fixing plate; 4. Air blowing box; 5. Sealing box; 51. Connecting rod; 52. Piston plate; 53. One-way exhaust pipe; 54. One-way air inlet pipe. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Example

[0025] like Figure 1-5 As shown, a paper bag turning device for a paper bag production line includes an upper conveyor belt 1 and a lower conveyor belt 11. The upper conveyor belt 1 can transport stacked paper bags. The upper conveyor belt 1 and the lower conveyor belt 11 can be connected to the paper bag production line. The upper conveyor belt 1 and the lower conveyor belt 11 are conventionally installed existing conveyor belts, and their specific internal structures have been disclosed and will not be described in detail here.

[0026] like Figure 1 , Figure 2 and Figure 5 As shown, the lower conveyor belt 11 is located at the bottom of one end of the upper conveyor belt 1. A limiting frame 2 is fixedly provided at the bottom of one end of the upper conveyor belt 1 to guide and limit the stacked paper bags that fall and flip on the upper conveyor belt 1. A U-shaped baffle 3 is fixedly provided at the bottom of the limiting frame 2 to cooperate and abut against the top of the lower conveyor belt 11. The stacked paper bags that fall on the upper conveyor belt 1 can be flipped together by the guidance and limitation of the limiting frame 2 and fall into the U-shaped baffle 3 of the lower conveyor belt 11.

[0027] like Figure 1-2 As shown, the U-shaped baffle 3 is equipped with a sorting mechanism, which can sort the stacked paper bags inside the U-shaped baffle 3. The lower conveyor belt 11 can transport the flipped and sorted stacked paper bags to the subsequent processing equipment of the paper bag production line.

[0028] like Figure 1-2 As shown, the sorting mechanism includes two first push plates 31 movably mounted on both sides of the inner wall of the U-shaped baffle 3 for pushing and sorting the sides of the stacked paper bags after flipping, and a second push plate 32 rotatably mounted on the bottom of the U-shaped baffle 3 for pushing the stacked paper bags towards the inside of the U-shaped baffle 3 after rotation to sort them. Two sets of multi-stage electric push rods 33 are fixedly installed between the two sides of the inner wall of the U-shaped baffle 3 and the two first push plates 31 for driving the first push plates 31 to move. After the two sets of multi-stage electric push rods 33 extend and retract slightly, they can drive the second push plate 32 to move laterally. After the two first push plates 31 move, they can push and sort the sides of the stacked paper bags after flipping.

[0029] like Figure 1-2 As shown, a fixed plate 35 is fixedly provided on the top of the outer side of the limiting frame 2. An electric telescopic rod 34 for driving the second push plate 32 to rotate is rotatably provided between the bottom of the fixed plate 35 and one side of the second push plate 32. The fixed plate 35 can connect the limiting frame 2 and the electric telescopic rod 34. After the electric telescopic rod 34 extends and retracts, it will drive the second push plate 32 to rotate. After the second push plate 32 rotates, it can push the stacked paper bags to the inside of the U-shaped baffle 3 to push and sort them. After the second push plate 32 rotates upward, it will disengage from the sorted stacked paper bags, so that after the lower conveyor belt 11 runs, the sorted paper bags can be conveyed out from the opening of the U-shaped baffle 3.

[0030] like Figure 1-2 As shown, the bottom outer side of the U-shaped baffle 3 is provided with a blower mechanism for blowing air onto the surface of the lower conveyor belt 11. The blower mechanism includes a blower box 4 that is fixedly installed at the bottom outer side of the U-shaped baffle 3 and is hollow inside.

[0031] like Figure 2-4 As shown, two sets of sealing boxes 5 are fixedly installed on both sides of the inner wall of the U-shaped baffle 3. A one-way exhaust pipe 53 with its bottom end penetrating and extending into the air blower box 4 is fixedly installed at the bottom of the sealing box 5. A matching piston plate 52 is slidably installed inside the sealing box 5. A connecting rod 51 penetrating the sealing box 5 is fixedly installed between one side of the piston plate 52 and the outer wall of the first push plate 31. A one-way air inlet pipe 54 is fixedly installed between the end of the sealing box 5 away from the connecting rod 51 and the U-shaped baffle 3. The connecting rod 51 can connect the piston plate 52 and the first push plate 31. A one-way valve is installed in both the one-way exhaust pipe 53 and the one-way air inlet pipe 54, so that the one-way exhaust pipe 53 and the one-way air inlet pipe 54 can only perform one-way exhaust and one-way air inlet, respectively.

[0032] When the multi-stage electric push rod 33 extends or retracts, it will drive the connecting rod 51 to move laterally. When the multi-stage electric push rod 33 shortens, the first push plate 31 will move towards the sealing box 5 and send the air in the sealing box 5 into the air blowing box 4 through the piston plate 52. The air discharged from the air blowing box 4 can partially blow air and remove dust from the surface of the lower conveyor belt 11 to improve the cleanliness of the surface of the lower conveyor belt 11. Similarly, when the first push plate 31 moves away from the sealing box 5, it will drive the piston plate 52 to move in the opposite direction and draw outside air into the sealing box 5 through the one-way air inlet pipe 54.

[0033] It should be noted that, in use, the paper bag turning device of this paper bag production line allows the stacked paper bags falling from the upper conveyor belt 1 to be turned over together by the guide limit of the limit frame 2 and fall into the U-shaped baffle 3 of the lower conveyor belt 11.

[0034] Then, control the extension and retraction of the multi-stage electric push rod 33 and the electric telescopic rod 34. After the two sets of multi-stage electric push rods 33 extend and retract slightly, they can drive the second push plate 32 to move laterally. After the two first push plates 31 move, they can push and tidy up the two sides of the stacked paper bags after flipping. After the electric telescopic rod 34 extends and retracts, it will drive the second push plate 32 to rotate. After the second push plate 32 rotates, it can push the stacked paper bags to the inside of the U-shaped baffle 3 to push and tidy up, so that the stacked paper bags after flipping can be arranged neatly, which is convenient for subsequent processing of paper bags.

[0035] When the multi-stage electric push rod 33 shortens, the first push plate 31 moves towards the sealing box 5 and sends the air in the sealing box 5 into the air blowing box 4 through the piston plate 52. The air discharged from the air blowing box 4 can partially blow air and remove dust from the surface of the lower conveyor belt 11 to improve the cleanliness of the surface of the lower conveyor belt 11.

[0036] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A paper bag turnover device of a paper bag production line, comprising an upper conveying belt (1) and a lower conveying belt (11) arranged at the bottom of one end of the upper conveying belt (1), characterized in that: a limiting frame (2) for guiding and limiting the stacked paper bags that fall and turn over on the upper conveying belt (1) is fixedly arranged at the bottom of one end of the upper conveying belt (1), and a U-shaped baffle (3) that abuts against the top of the lower conveying belt (11) is fixedly arranged at the bottom of the limiting frame (2); an arrangement mechanism is arranged in the U-shaped baffle (3), the arrangement mechanism comprises two first push plates (31) movably arranged on the inner walls of the U-shaped baffle (3) for pushing and arranging the stacked paper bags on both sides after turning over, a second push plate (32) rotatably arranged at the bottom of the U-shaped baffle (3) for pushing and arranging the stacked paper bags to the inside of the U-shaped baffle (3) after rotating, and a blowing mechanism for blowing air on the surface of the lower conveying belt (11) is arranged at the bottom outside of the U-shaped baffle (3).

2. A paper bag inverting apparatus for a paper bag production line according to claim 1, characterized in that: Two groups of multi-stage electric push rods (33) for driving the first push plates (31) to move are fixedly installed between the inner walls of the U-shaped baffle (3) and the two first push plates (31).

3. A paper bag inverting apparatus for a paper bag production line according to claim 1, wherein: A fixed plate (35) is fixedly arranged at the top outside of the limiting frame (2), an electric telescopic rod (34) for driving the second push plate (32) to rotate is rotatably arranged between the bottom of the fixed plate (35) and one side of the second push plate (32).

4. A paper bag inverting apparatus for a paper bag production line according to claim 1, characterized in that: The blowing mechanism comprises a blowing box (4) fixedly arranged at the bottom outside of the U-shaped baffle (3) and hollow inside.

5. A paper bag inverting apparatus for a paper bag production line according to claim 4, wherein: Two groups of sealing boxes (5) are fixedly arranged on the inner walls of the U-shaped baffle (3), and a one-way exhaust pipe (53) extending through and extending inside the blowing box (4) is fixedly arranged at the bottom of the sealing box (5).

6. A paper bag inverting apparatus for a paper bag production line according to claim 5, wherein: A matching piston plate (52) is slidably arranged in the sealing box (5), a connecting rod (51) extending through the sealing box (5) is fixedly arranged between one side of the piston plate (52) and the outer wall of the first push plate (31), and a one-way air inlet pipe (54) is fixedly arranged between the end of the sealing box (5) away from the connecting rod (51) and the U-shaped baffle (3).

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