For carton unfolding device

Abstract

This utility model discloses a carton unfolding device, relating to the field of carton unfolding technology. It aims to solve the problems of existing unfolding devices failing to adsorb and fix cartons during unfolding, and failing to ensure the stability of cartons of different sizes during the unfolding process, resulting in insufficient overall stability. The key technical points include a belt conveyor with a conveyor belt wrapped around its rollers. Multiple suction holes are provided on the outer surface of the conveyor belt. An air extraction pipe is fixedly connected to the middle of one side of the outer surface of the belt conveyor, with its inlet communicating with the inner space of the belt conveyor. A vacuum pump is fixedly installed in the pipe. This achieves the effect of adsorbing cartons of different sizes during unfolding, improving the stability of the cartons' posture, and thus enhancing the overall stability of the process, resulting in strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box unfolding technology, and in particular to a cardboard box unfolding device. Background Technology

[0002] In the packing process of canned food, a certain number of cans need to be packed into the inside of a cardboard box. This process requires unfolding the folded cardboard box. In the past, this was done manually. However, with the popularization of automated equipment, more and more factories have adopted unfolding equipment to automate the unfolding operation of the cardboard box.

[0003] Existing unfolding devices cannot adsorb and fix the cartons when unfolding them. When dealing with cartons of different sizes, they cannot ensure the stability of the cartons' posture during the unfolding process, and the overall stability needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a carton unfolding device that can perform an adsorption operation on cartons of different sizes when unfolding them, thereby improving the posture stability of the cartons and thus improving the stability of the entire process. It is highly practical.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A carton unfolding device includes a belt conveyor, wherein a conveyor belt is sleeved around the roller shaft of the belt conveyor, and multiple air suction holes are provided on the outer surface of the conveyor belt. An air extraction pipe is fixedly connected to the middle position of one side of the outer surface of the belt conveyor, and the air inlet end of the air extraction pipe communicates with the inner space of the belt conveyor. A vacuum pump is fixedly installed in the pipeline of the air extraction pipe.

[0007] By adopting the above technical solution, the carton can be adsorbed during unfolding, improving the carton's posture stability and thus enhancing the overall operational stability of unfolding the carton.

[0008] Furthermore, a third mounting base is fixedly connected to the upper end of the belt conveyor, and a track seat is fixedly connected to the middle position of the upper surface of the third mounting base. A lead screw is rotatably installed inside the track seat, and a moving block is slidably installed in the groove of the track seat. The lead screw passes through the threaded hole of the moving block and is threadedly connected to the moving block. A crank handle is fixedly installed at the upper end of the lead screw.

[0009] By adopting the above technical solution, the position of the unfolding structure can be flexibly adjusted.

[0010] Furthermore, a fourth mounting base is fixedly installed on the side surface of the movable block by bolts. The end face of the fourth mounting base is provided with a mounting hole, and a third cylinder is snapped into the inside of the mounting hole. A suction cup is snapped into the telescopic end of the third cylinder.

[0011] By adopting the above technical solution, the height of the suction cup can be flexibly adjusted, making it easy to adapt to the unfolding operation of cartons of different sizes.

[0012] Furthermore, two second mounting seats are fixedly connected to one side of the outer surface of the belt conveyor. Each second mounting seat has two mounting holes on its outer surface. A first cylinder and a second cylinder are respectively snapped into the two mounting holes. A folding strip is snapped into the telescopic end of the first cylinder, and a ball head structure is provided at the telescopic end of the second cylinder.

[0013] By adopting the above technical solution, the two horizontally folded cardboard panels at one end of the carton can be folded.

[0014] Furthermore, there are two folding strips, which are located on the same side and are distributed obliquely and symmetrically.

[0015] By adopting the above technical solution, it is possible to effectively perform partial folding operations on the two horizontally folded cardboard panels at one end of the carton.

[0016] Furthermore, a first mounting base is fixedly connected to the side surface of the belt conveyor, and two symmetrically distributed guide bars are fixedly connected to the inner and outer surfaces of the first mounting base, one end of which is inclined and attached to the outer surface of the conveyor belt.

[0017] By adopting the above technical solution, the two longitudinally folded cardboard panels at one end of the carton can be folded.

[0018] In summary, the beneficial technical effects of this utility model are as follows:

[0019] 1. This utility model allows the folded carton to be placed on a conveyor belt when unfolding the carton. Then, the conveyor belt is started, and the rotation of the rollers of the conveyor belt causes the conveyor belt to rotate. During this process, the vacuum pump is started, and the air extraction pipe begins to evacuate the space inside the conveyor belt. At this time, the external air enters the interior of the conveyor belt through the air holes on the outer surface of the conveyor belt, thereby making the air holes of the conveyor belt have suction force, which can firmly adhere the carton to the conveyor belt, ensuring that the carton can be transported stably and improving the posture stability when the carton is unfolded and folded in the future.

[0020] 2. This utility model allows for adjustment of the suction cup position when unfolding a carton, based on the desired carton size. Adjustment is achieved by turning the screw with a crank handle. The screw's rotation causes the moving block to slide within the groove of the track seat, which in turn moves the fourth mounting base, the third cylinder, and the suction cup. This allows for convenient adjustment of the suction cup position, which in turn adjusts the cylinder's extension and retraction. It effectively adapts to unfolding cartons of different sizes, offering strong practicality and flexible, convenient adjustment. Attached Figure Description

[0021] Figure 1 This is a first-view perspective view of the three-dimensional structure of this utility model;

[0022] Figure 2 This is a second perspective view of the three-dimensional structure of this utility model.

[0023] In the diagram: 1. Belt conveyor; 2. First mounting base; 3. Guide bar; 4. Second mounting base; 5. First cylinder; 6. Folding bar; 7. Second cylinder; 8. Conveyor belt; 9. Third mounting base; 10. Track seat; 11. Lead screw; 12. Moving block; 13. Fourth mounting base; 14. Third cylinder; 15. Suction cup; 16. Evacuation pipe; 17. Vacuum pump. Detailed Implementation

[0024] The method of this utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 , Figure 2 This is a carton unfolding device, comprising a belt conveyor 1, a conveyor belt 8 wrapped around the rollers of the belt conveyor 1, multiple suction holes on the outer surface of the conveyor belt 8, and an extraction pipe 16 fixedly connected to the middle of one side of the outer surface of the belt conveyor 1. The air inlet of the extraction pipe 16 is connected to the inner space of the belt conveyor 1, and a vacuum pump 17 is fixedly installed in the pipe of the extraction pipe 16. When unfolding the carton, the folded carton is placed on the conveyor belt 8, and then the belt conveyor 1 is started. The rotation of the rollers of the belt conveyor 1 causes the conveyor belt 8 to rotate. During this process, the vacuum pump 17 is started, and the extraction pipe 16 begins to extract air from the space inside the belt conveyor 1. At this time, the outside air passes through the air holes on the outer surface of the conveyor belt 8 and enters the interior of the belt conveyor 1, thereby creating suction at the air holes of the conveyor belt 8, which allows the conveyed carton to be firmly adsorbed on the conveyor belt 8, ensuring that the carton can be transported stably and improving the posture stability during subsequent unfolding and folding of the carton.

[0026] Reference Figure 1A third mounting base 9 is fixedly connected to the upper end of the belt conveyor 1. A track seat 10 is fixedly connected to the middle position of the upper surface of the third mounting base 9. A lead screw 11 is rotatably mounted inside the track seat 10. A moving block 12 is slidably mounted in the groove of the track seat 10. The lead screw 11 passes through the threaded hole of the moving block 12 and is threadedly connected to the moving block 12. A crank handle is fixedly mounted on the upper end of the lead screw 11. A fourth mounting base 13 is fixedly mounted on the side surface of the moving block 12 by bolts. A mounting hole is provided on the end face of the fourth mounting base 13, and a third cylinder 14 is snapped into the mounting hole. A suction cup 15 is snapped into the telescopic end of the third cylinder 14. The three cylinders 14 are single-acting cylinders. The extension of the telescopic rod of the third cylinder 14 is accomplished by an internal spring. The introduction of compressed gas can retract the telescopic rod into the cylinder body. When unfolding a carton, the position of the suction cup 15 can be adjusted according to the size of the carton to be unfolded. During adjustment, the screw 11 is turned by cranking the handle. The rotation of the screw 11 can drive the moving block 12 to slide in the slide groove of the track seat 10, which in turn can drive the fourth mounting seat 13, the third cylinder 14, and the suction cup 15 to move in position. The position of the suction cup 15 can be easily adjusted, and the extension and retraction of the cylinder can be adjusted. It can effectively adapt to the unfolding operation of cartons of different sizes, with strong practicality and flexible and convenient adjustment operation.

[0027] Reference Figure 1 Two second mounting seats 4 are fixedly connected to one side of the outer surface of the belt conveyor 1. Each second mounting seat 4 has two mounting holes on its outer surface. A first cylinder 5 and a second cylinder 7 are respectively snapped into the two mounting holes. A folding strip 6 is snapped into the telescopic end of the first cylinder 5. A ball head structure is provided at the telescopic end of the second cylinder 7. There are two folding strips 6, which are located on the same side and are symmetrically distributed. When the conveyor belt 8 moves the unfolded carton to one side of the folding strip 6, the two first cylinders 5 extend at the same time. At this time, the inclined folding strip 6 can partially fold the two horizontally folded carton boards. Then, the two second cylinders 7 extend at the same time, so that the two partially folded carton boards can be folded to a 90-degree position, which can effectively complete the first folding operation.

[0028] Reference Figure 1 A first mounting base 2 is fixedly connected to the side surface of the belt conveyor 1. Two symmetrically distributed guide bars 3 are fixedly connected to the inner and outer surfaces of the first mounting base 2. One end of one of the guide bars 3 is inclined and attached to the outer surface of the conveyor belt 8. The conveyor belt 8 can be used to transport the carton. As the carton moves, the two guide bars 3 can be used to guide and fold the two longitudinally folded carton boards at one end of the carton. This can effectively complete all folding operations.

[0029] Working Principle: In use, first install the device in the designated location. Then, adjust the position of the suction cup 15 according to the required size of the unfolded carton. During adjustment, turn the screw 11 using the crank handle. The rotation of the screw 11 causes the moving block 12 to slide within the groove of the track seat 10, which in turn moves the fourth mounting seat 13, the third cylinder 14, and the suction cup 15. This allows for convenient adjustment of the suction cup 15's position and, consequently, the cylinder's extension / retraction, effectively adapting to unfolding different sized cartons. After adjustment, unfolding can begin. When unfolding the carton, place the folded carton on the conveyor belt 8, then start the conveyor belt 1. The rotation of the rollers in the conveyor belt 1 causes the conveyor belt 8 to rotate. During this process, the vacuum pump 17 is activated, and the extraction pipe 16 begins to evacuate the space inside the conveyor belt 1. External air enters the conveyor belt 1 through the air holes on the outer surface of the conveyor belt 8, creating suction at the air holes and firmly adhering the conveyed carton to the conveyor belt 8. This ensures stable transport of the cardboard box. When the cardboard box moves below the suction cup 15, the compressed gas inside the third cylinder 14 is discharged. The spring inside the third cylinder 14 causes the telescopic rod to extend, allowing the suction cup 15 to adhere to the upper surface of the cardboard box. Then, compressed gas is introduced, causing the telescopic rod to retract into the cylinder. At this point, the suction cup 15 is raised, thus unfolding the cardboard box. After unfolding, the suction cup 15 detaches from the cardboard box, and the cardboard box moves with the conveyor belt 8. When the conveyor belt 8 moves the unfolded cardboard box to one side of the folding strip 6... At the same time, two first cylinders 5 extend, and the inclined folding strips 6 can partially fold the two horizontally folded cardboard boxes. Then, two second cylinders 7 extend simultaneously, so that the two partially folded cardboard boxes can be folded to a 90-degree position, which can effectively complete the first folding operation. Then, the carton is continued to be conveyed by the conveyor belt 8. As the carton moves, the two guide strips 3 can be used to guide the two vertically folded cardboard boxes at one end of the carton to perform folding operations. This can effectively complete all folding operations.

[0030] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. For a carton unscrambling apparatus comprising a belt conveyor (1), characterized in that: The conveyor belt (1) has a conveyor belt (8) wrapped around its roller shaft. Multiple air suction holes are provided on the outer surface of the conveyor belt (8). An air extraction pipe (16) is fixedly connected to the middle position of the outer surface of one side of the conveyor belt (1). The air inlet of the air extraction pipe (16) is connected to the inner space of the conveyor belt (1). A vacuum pump (17) is fixedly installed in the pipe of the air extraction pipe (16).

2. A carton unscrambling apparatus as claimed in claim 1, wherein: The upper end of the belt conveyor (1) is fixedly connected to a third mounting base (9). A track seat (10) is fixedly connected to the middle position of the upper surface of the third mounting base (9). A lead screw (11) is rotatably installed inside the track seat (10). A moving block (12) is slidably installed in the groove of the track seat (10). The lead screw (11) passes through the threaded hole of the moving block (12) and is threadedly connected to the moving block (12). A crank is fixedly installed at the upper end of the lead screw (11).

3. A carton unscrambling apparatus as claimed in claim 2, wherein: A fourth mounting base (13) is fixedly installed on the side surface of the movable block (12) by bolts. The end face of the fourth mounting base (13) is provided with a mounting hole, and a third cylinder (14) is snapped into the inside of the mounting hole. A suction cup (15) is snapped into the telescopic end of the third cylinder (14).

4. The carton unscrambling apparatus of claim 1 wherein: Two second mounting seats (4) are fixedly connected to one side of the outer surface of the belt conveyor (1). Each second mounting seat (4) has two mounting holes on its outer surface. A first cylinder (5) and a second cylinder (7) are respectively snapped into the two mounting holes. A folding strip (6) is snapped into the telescopic end of the first cylinder (5), and a ball head structure is provided at the telescopic end of the second cylinder (7).

5. A carton unscrambling apparatus as claimed in claim 4, wherein: Two folding strips (6) are provided, and the two folding strips (6) are located on the same side and are distributed obliquely and symmetrically.

6. The carton unfolding device according to claim 1, characterized in that: A first mounting base (2) is fixedly connected to the side surface of the belt conveyor (1). Two symmetrically distributed guide strips (3) are fixedly connected to the inner and outer surfaces of the first mounting base (2). One end of one of the guide strips (3) is inclined and attached to the outer surface of the conveyor belt (8).

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