A box-opening device

Abstract

This utility model belongs to the field of carton opening machine technology, and in particular to an opening device, including a guide rail and a connecting plate. The guide rail is connected to the frame of the carton opening machine. A connecting plate is installed on one side of the guide rail, and a support plate is fixed on the side of the connecting plate away from the guide rail. When the guide rail is activated, it moves the connecting plate, causing the connecting rope to pull the support rod. This causes the rotating rod to rotate the push plate upwards, allowing the push plate to automatically fold the short side of the carton bottom horizontally. After the push plate folds the short side, the guide rail moves the opening device back to its original position. At this time, the connecting spring contracts, pulling the rotating rod back to its original position, keeping the support rod vertical, and allowing the push plate to return to its original position. Operators only need to periodically replace the connecting spring to maintain the stable operation of the opening device, reducing the risk of malfunction, minimizing carton wear, and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of box opening machine technology, specifically a box opening device. Background Technology

[0002] Carton erectors can quickly assemble large numbers of cartons through automated operation, significantly reducing manual carton opening time. They also maintain consistent assembly quality, reduce human error, and ensure the structural stability of each carton. The carton opening device is a mechanism in the carton erector that folds the short side cardboard at the bottom of the carton. When a flat carton is fed into the carton erector by a conveyor belt, the folding mechanism automatically unfolds the flat carton, and then the carton opening device folds the short side cardboard at the bottom of the carton, making it easier for the carton erector to apply tape to the bottom of the carton later.

[0003] By activating the carton opening device, the short side cardboard at the bottom of the carton can be folded horizontally by the push plate, making it easier to fix the bottom of the carton and ensuring its stability. Since the carton opening device generally uses a cylinder to drive the push plate to rotate and push the short side cardboard at the bottom of the carton, when the cylinder malfunctions, its pressure changes, the position of the sensor changes, or there is an error in the operation of the control panel, the carton opening device is prone to jamming. At this time, the operator needs to spend a certain amount of time to repair it, thereby reducing the production efficiency of the carton opening machine. Therefore, we have proposed a carton opening device. Utility Model Content

[0004] The purpose of this utility model is to provide a box-opening device to solve the problem that the box-opening device is prone to box jamming when the cylinder of the box-opening device mentioned in the background art malfunctions, the position of the sensing device changes, or the control panel is operated incorrectly, thereby reducing the production efficiency of the box-opening machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a box-opening device, comprising a guide rail and a connecting plate, wherein the guide rail is connected to the frame of a box-opening machine, a connecting plate is installed on one side of the guide rail, a support plate is fixed on the side of the connecting plate away from the guide rail, a bracket is connected to the outer side of the support plate, the lower side of the bracket is movably connected to a rotating rod via a hinge, a hanging ring on one side of the support plate is hooked to the upper end of a connecting spring, and the lower end of the connecting spring is opposite to a hanging ring on one side of the rotating rod.

[0006] Preferably, a support rod is fixed to one end of the rotating rod near the connecting plate, and a connecting rope is connected to the upper end of the support rod.

[0007] Preferably, the end of the connecting rope away from the support rod is connected to the frame of the box opener, and a push plate is fixed to the lower side of the rotating rod.

[0008] Preferably, a protrusion is fixed on the side of the connecting plate near the support rod, and a connecting pad is adhered to the outside of the protrusion.

[0009] Preferably, the push plate has a groove inside, and the two ends of the groove are slidably connected to the first slide plate and the second slide plate, respectively.

[0010] Preferably, toothed plates are fixed to the side of the first skateboard near the second skateboard and the side of the second skateboard near the first skateboard, respectively.

[0011] Preferably, the first slide plate has a storage groove on the side near the toothed plate and the second slide plate have a storage groove on the side near the toothed plate.

[0012] Preferably, one end of the toothed plate is slidably connected to the receiving groove, and a grooved gear is connected between the two toothed plates.

[0013] Preferably, the grooved gear is movably connected to the push plate via a bearing, and a mating plate is provided on one side of the grooved gear.

[0014] Preferably, a bolt is fixed to the side of the mating plate away from the cog gear, and one end of the bolt penetrates the interior of the push plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: When the guide rail is activated, it moves the connecting plate, allowing the connecting rope to pull the support rod, which in turn causes the rotating rod to rotate the push plate upward. This allows the push plate to automatically fold the short side cardboard at the bottom of the carton horizontally. After the push plate folds the short side cardboard, the guide rail moves the carton opening device back to its original position. At this time, the connecting spring contracts and pulls the rotating rod back to its original position, keeping the support rod vertical and allowing the push plate to return to its original position. Operators only need to periodically replace the connecting spring to maintain the stable operation of the carton opening device, reducing the likelihood of malfunctions, minimizing outer carton wear, and improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the guide rail and connecting plate of this utility model;

[0017] Figure 2 This is a schematic diagram of the push plate, the first sliding plate, and their connecting structure of this utility model;

[0018] Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0019] Figure 4 This is a three-dimensional structural diagram of the grooved gear and mating plate of this utility model.

[0020] In the diagram: 1. Guide rail; 101. Connecting plate; 102. Support plate; 103. Bracket; 104. Rotating rod; 105. Connecting spring; 106. Support rod; 107. Connecting rope; 108. Push plate; 2. Protrusion; 201. Connecting pad; 3. Slide groove; 301. First slide plate; 3011. Second slide plate; 302. Toothed plate; 303. Storage groove; 304. Cogging gear; 305. Connecting plate; 306. Bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4This utility model provides a technical solution: a box-opening device, including a guide rail 1 and a connecting plate 101. The guide rail 1 is connected to the frame of the box-opening machine. The connecting plate 101 is installed on one side of the guide rail 1. A support plate 102 is fixed on the side of the connecting plate 101 away from the guide rail 1. A bracket 103 is connected to the outer side of the support plate 102. The lower side of the bracket 103 is movably connected to a rotating rod 104 via a hinge. A hanging ring on one side of the support plate 102 is hooked to the upper end of a connecting spring 105. The lower end of the connecting spring 105 is connected to the rotating rod 104. The hanging rings on one side of the rotating rod 104 are connected to each other. A support rod 106 is fixed to one end of the rotating rod 104 near the connecting plate 101. A connecting rope 107 is connected to the upper end of the support rod 106. The end of the connecting rope 107 away from the support rod 106 is connected to the frame of the box opener. A push plate 108 is fixed to the lower side of the rotating rod 104. A protrusion 2 is fixed to one side of the connecting plate 101 near the support rod 106. A connecting pad 201 is glued to the outside of the protrusion 2. A sliding groove 3 is opened inside the push plate 108, and the two ends of the sliding groove 3 are respectively connected to the first... A sliding plate 301 and a second sliding plate 3011 are slidably connected. A toothed plate 302 is fixed to the side of the first sliding plate 301 near the second sliding plate 3011 and the side of the second sliding plate 3011 near the first sliding plate 301, respectively. A storage groove 303 is provided on the side of the first sliding plate 301 near the toothed plate 302 and the side of the second sliding plate 3011 near the toothed plate 302, respectively. One end of the toothed plate 302 is slidably connected to the storage groove 303. A grooved gear 304 is connected between the two toothed plates 302. The push plate 108 is movably connected by a bearing, and a mating plate 305 is provided on one side of the grooved gear 304. A bolt 306 is fixed on the side of the mating plate 305 away from the grooved gear 304, and one end of the bolt 306 penetrates the interior of the push plate 108. The connecting pad 201 and the protrusions of the mating plate 305 are made of rubber. The slide groove 3 matches the first slide plate 301 and the second slide plate 3011. The toothed plate 302 meshes with the grooved gear 304, and the bolt 306 is threadedly connected to the push plate 108.

[0023] In specific implementation, according to Figures 1-4When the flat carton is fed into the carton opener, the folding mechanism automatically unfolds the carton. At this time, the guide rail 1 is activated, causing the connecting plate 101 to move. Since the connecting rope 107 is connected to the frame of the carton opener, the connecting rope 107 can pull the support rod 106, causing the support rod 106 to rotate the rotating rod 104. This causes the rotating rod 104 to rotate the push plate 108 upward, allowing the push plate 108 to automatically fold the short side cardboard at the bottom of the carton horizontally. The operator can also rotate the bolt 306, which is threadedly connected to the push plate 108, allowing the bolt 306 to move the mating plate 305 closer to or away from the push plate 108. When the bolt 306 drives the mating plate 305 away from the cogging gear 304, the operator can pull the first sliding plate 301 to slide along the slide groove 3, causing the toothed plate 302 of the first sliding plate 301 to move. The toothed plate 302 meshes with the cogging gear 304, allowing the first sliding plate 301 and the second sliding plate 3011 to slide simultaneously along the slide groove 3. The slide groove 3 matches the first and second sliding plates 3011, preventing them from easily shifting or wobbling when sliding along the slide groove 3. At this time, the two toothed plates 302 are respectively inside the receiving groove 303 of the first sliding plate 301 and the second sliding plate... The internal sliding of the storage groove 303 of 3011 prevents the first and second sliding plates 3011 from completely detaching from the push plate 108, thus allowing the first and second sliding plates 3011 to extend on both sides of the push plate 108. At this time, the bolt 306 is rotated in the opposite direction, causing the bolt 306 to push the docking plate 305 and the groove of the cogging gear 304 to press against each other. The protrusions of the docking plate 305 are made of rubber and have a certain deformation capacity, which can enhance the friction limit between the docking plate 305 and the cogging gear 304, allowing the first and second sliding plates 3011 to remain in an extended state, making it easy for the push plate 108 to push and fold the bottom of carton of different sizes. When the short side cardboard is pushed and folded by the push plate 108, the guide rail 1 drives the box opening device to return to its original position. At this time, the connecting spring 105 retracts, causing the connecting spring 105 to pull the rotating rod 104 back to its original position. At this time, the support rod 106 approaches the connecting pad 201 again and is squeezed, keeping the support rod 106 in a vertical state so that the push plate 108 can return to its original position. Moreover, the connecting pad 201 is made of rubber and has a certain deformation capacity, which can reduce the noise generated by the impact when the support rod 106 returns to its original position. At this time, the operator only needs to replace the connecting spring 105 regularly to maintain the stable operation of the box opening device, making the box opening machine less prone to failure, reducing outer box wear, and improving production efficiency.

[0024] In summary, when a flat carton is fed into the carton opener, the folding mechanism automatically unfolds the carton. At this time, the guide rail 1 is activated, causing the connecting rope 107 to pull the support rod 106, which in turn drives the rotating rod 104 to rotate. This causes the push plate 108 to automatically fold the short side cardboard at the bottom of the carton horizontally. After the push plate 108 folds the short side cardboard, the guide rail 1 drives the carton opener to return to its original position. At this time, the connecting spring 105 retracts, causing it to pull the rotating rod 104 back to its original position, keeping the support rod 106 vertical and allowing the push plate 108 to return to its original position. Operators only need to periodically replace the connecting spring 105 to maintain the stable operation of the carton opener, reducing the likelihood of malfunctions, minimizing outer carton wear, and improving production efficiency. Content not described in detail in this specification is prior art known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A box-opening device, comprising a guide rail (1) and a connecting plate (101), characterized in that: The guide rail (1) is connected to the frame of the box opener. A connecting plate (101) is installed on one side of the guide rail (1). A support plate (102) is fixed on the side of the connecting plate (101) away from the guide rail (1). A bracket (103) is connected to the outside of the support plate (102). The lower side of the bracket (103) is movably connected to the rotating rod (104) via a hinge. The hanging ring on one side of the support plate (102) is hooked to the upper end of the connecting spring (105). The lower end of the connecting spring (105) is connected to the hanging ring on one side of the rotating rod (104).

2. The box-opening device according to claim 1, characterized in that: A support rod (106) is fixed to one end of the rotating rod (104) near the connecting plate (101), and a connecting rope (107) is connected to the upper end of the support rod (106).

3. The box-opening device according to claim 2, characterized in that: The end of the connecting rope (107) away from the support rod (106) is connected to the frame of the box opener, and a push plate (108) is fixed on the lower side of the rotating rod (104).

4. The box-opening device according to claim 2, characterized in that: A protrusion (2) is fixed on the side of the connecting plate (101) near the support rod (106), and a connecting pad (201) is glued to the outside of the protrusion (2).

5. The box-opening device according to claim 3, characterized in that: The push plate (108) has a groove (3) inside, and the two ends of the groove (3) are slidably connected to the first slide plate (301) and the second slide plate (3011) respectively.

6. The box-opening device according to claim 5, characterized in that: Toothed plates (302) are fixed to the side of the first slide plate (301) near the second slide plate (3011) and the side of the second slide plate (3011) near the first slide plate (301), respectively.

7. The box-opening device according to claim 6, characterized in that: The first slide plate (301) and the second slide plate (3011) are respectively provided with a storage groove (303) on the side near the toothed plate (302).

8. The box-opening device according to claim 7, characterized in that: One end of the toothed plate (302) is slidably connected to the receiving groove (303), and a grooved gear (304) is connected between the two toothed plates (302).

9. The box-opening device according to claim 8, characterized in that: The grooved gear (304) is movably connected to the push plate (108) via a bearing, and a mating plate (305) is provided on one side of the grooved gear (304).

10. A box-opening device according to claim 9, characterized in that: The mating plate (305) is fixed with a bolt (306) on the side away from the cog gear (304), and one end of the bolt (306) penetrates the interior of the push plate (108).

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