Edge folding device for plastic packaging box

Abstract

The utility model relates to the technical field of packaging box edge folding, and discloses a plastic packaging box edge folding device which comprises a conveying belt and a material receiving box, the front side and the rear side of the top end of the conveying belt are both fixedly connected with supporting plates, the front end of the supporting plate on the front side is fixedly connected with a first motor, and the driving end of the first motor is fixedly connected with a rotating shaft. Two edge folding cylinders are slidably connected to the exterior of the rotating shaft, grooves are formed in the front side and the rear side of the top end of the rotating shaft, heating resistors are fixedly connected to the sides, close to the supporting plate, of the interiors of the grooves, heating wires are fixedly connected to the ends, close to the edge folding cylinders, of the heating resistors, and a plurality of clamping holes are formed in the left side of the rotating shaft. According to the plastic box edge folding device, heating and rapid edge folding are carried out on the two sides of packaging boxes of different sizes, the plastic boxes can be bent more easily, needed angles are formed, the plastic boxes of different sizes can be clamped and positioned, the plastic boxes can move linearly stably, and the quality of the processed plastic boxes is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging box folding, in particular to a plastic packaging box folding device. Background Art

[0002] Plastic packaging boxes are widely used in the packaging field of various industries because of their low production cost, light weight, and the ability to be made transparent so that consumers can intuitively see the products in the packaging boxes. During the production process of some plastic packaging boxes, the packaging boxes need to be combined with paper cards to form the outer packaging of the products. The paper cards are generally movably inserted into the folded edges of the plastic packaging boxes, so the plastic packaging boxes need to be folded to make them fit with the paper cards.

[0003] Some existing packaging box folding machines are usually designed to process packaging boxes of specific sizes and materials. The folding mechanisms, fixtures and transmission systems of these machines are fixed designs to adapt to the folding of specific sizes and materials. Therefore, if you want to process plastic boxes of different sizes, you need to redesign the folding mechanisms and fixtures to ensure that they can adapt to different box sizes and shapes. This not only causes the production line to need to frequently replace or adjust the folding machines to adapt to plastic boxes of different sizes, but also increases production time and labor costs. To this end, in view of the above problems, a plastic packaging box folding device is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a plastic packaging box folding device, which aims to improve the problem that the folding machine in the prior art cannot fold plastic box materials of different sizes.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A folding device for a plastic packaging box comprises a conveyor belt and a receiving box, wherein the front and rear sides of the top of the conveyor belt are fixedly connected to support plates, the front end of the support plate on the front side is fixedly connected to a motor 1, the driving end of the motor 1 is fixedly connected to a rotating shaft, the outside of the rotating shaft is slidably connected to two folding cylinders, the front and rear sides of the top of the rotating shaft are provided with grooves, the inside of the groove is fixedly connected to a heating resistor on a side close to the support plate, the heating resistor is fixedly connected to an end of the folding cylinder with a heating wire, a plurality of clamping holes are provided on the left side of the rotating shaft, a clamping column is slidably connected to the middle part of the left side of the folding cylinder, the left end of the clamping column is fixedly connected to a pulling plate, the outer sleeve of the clamping column is provided with a spring, the middle part of the top of the conveyor belt is fixedly connected to a U-shaped plate, the front and rear sides of the U-shaped plate are fixedly connected to two auxiliary rods, and the top of the U-shaped plate is fixedly connected to a rotating component, and the rotating component is used to assist in positioning the packaging box;

[0007] As a further description of the above technical solution:

[0008] The rotating assembly includes a second motor, a turntable, two pull rods, two auxiliary plates, two collars and two positioning blocks. The middle part of the top of the U-shaped plate is fixedly connected to the second motor, the driving end of the second motor is fixedly connected to the turntable, the left and right ends of the bottom end of the turntable are rotatably connected to the pull rods, the front and rear sides of the top of the conveyor belt are slidably connected to the auxiliary plates, the left side of the top of the auxiliary plate is provided with two collars, and the left ends of the adjacent sides of the two auxiliary plates are fixedly connected to the positioning blocks;

[0009] As a further description of the above technical solution:

[0010] The front and rear ends of the rotating shaft are externally rotatably connected to the inner wall of the middle portion of the support plate, and the outer portion of the heating wire is slidably connected to the inner wall of the groove;

[0011] As a further description of the above technical solution:

[0012] The outer sides of the two heating wires that are close to each other are fixedly connected to the outer side of the hemming tube, and the outer side of the clamping column is clamped with the inner wall of the clamping hole;

[0013] As a further description of the above technical solution:

[0014] One end of the spring is fixedly connected to the right side of the pull plate, and the other end of the spring is fixedly connected to the middle of the left side of the folding tube;

[0015] As a further description of the above technical solution:

[0016] The inner wall of the middle part of the collar is slidably connected to the outside of the auxiliary rod, and the top end of the auxiliary plate is slidably connected to the inner side of the U-shaped plate;

[0017] As a further description of the above technical solution:

[0018] The side of the pull rod away from the rotating disk is rotatably connected to the top of the positioning block, and the top of the rotating disk is slidably connected to the middle of the bottom end of the auxiliary rod;

[0019] As a further description of the above technical solution:

[0020] The left and right sides of the bottom end of the conveyor belt are fixedly connected with supports, and the left side of the left support is fixedly connected with two support rods, and the bottom ends of the support rods are in contact with the bottom end of the receiving box.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, a motor drives a folding cylinder fixed on a rotating shaft to rotate, and a heating resistor is started to heat the outer edge of the folding cylinder through a heating wire, and the clamping column is pulled to engage with the clamping holes at different positions, so as to realize heating and rapid folding of both sides of packaging boxes of different sizes. During the folding process, the plastic box is easier to bend and form the required angle, which can reduce stress concentration and stretching of plastic during folding, thereby improving the quality of folding and making it smoother and more uniform.

[0023] 2. In the utility model, the turntable is driven to rotate by the second motor to cooperate with the pull rod to connect the positioning block of the auxiliary plate, so that the auxiliary plate can slide relatively on the top of the conveyor belt, so as to clamp and position plastic boxes of different sizes, so that the plastic boxes can move smoothly in a straight line, thereby ensuring the quality of the plastic boxes after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a plastic packaging box folding device proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a plastic packaging box folding device proposed by the utility model;

[0026] Figure 3 This is a structural schematic diagram of a support rod of a folding device for a plastic packaging box proposed by the utility model;

[0027] Figure 4 This is a structural schematic diagram of a motor 1 of a plastic packaging box folding device proposed by the utility model;

[0028] Figure 5 The utility model provides a schematic diagram of the structure of a heating resistor of a folding device for a plastic packaging box.

[0029] Legend:

[0030] 1. Conveyor belt; 2. Support plate; 3. Motor 1; 4. Rotating shaft; 5. Folding tube; 6. Groove; 7. Heating resistor; 8. Heating wire; 9. Clamping hole; 10. Clamping column; 11. Pull plate; 12. Spring; 13. U-shaped plate; 14. Auxiliary rod; 15. Motor 2; 16. Turntable; 17. Pull rod; 18. Auxiliary plate; 19. Ring; 20. Positioning block; 21. Support; 22. Support rod; 23. Material receiving box. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-Figure 3 The utility model provides an embodiment: a plastic packaging box folding device, including a conveyor belt 1 and a receiving box 23. The top and rear sides of the conveyor belt 1 are fixedly connected with support plates 2. The conveyor belt 1 is located in the middle of the device and is used to transport plastic boxes placed thereon. The top and rear sides of the conveyor belt 1 are fixed by the support plates 2 to ensure stable transportation.

[0033] The front end of the front support plate 2 is fixedly connected to a motor 3, and the driving end of the motor 3 is fixedly connected to a rotating shaft 4. The rotating shaft 4 is externally rotatably connected to the inner wall of the middle part of the support plate 2, and serves as the main driving part for the folding operation. The outside of the rotating shaft 4 is slidably connected to two folding tubes 5. Grooves 6 are provided on the front and rear sides of the top of the rotating shaft 4. A heating resistor 7 is fixedly connected to the inside of the groove 6 on the side close to the support plate 2. A heating wire 8 is fixedly connected to the end of the heating resistor 7 close to the folding tube 5. These tubes are located at the top of the conveyor belt 1 for heating and folding operations. A heating resistor 7 is fixedly connected to the inner side of the folding tube 5 close to the support plate 2. Heat is transmitted to the outer edge of the folding tube 5 through the heating wire 8, thereby softening the side of the plastic box to be folded.

[0034] A plurality of clamping holes 9 are provided on the left side of the rotating shaft 4, a clamping column 10 is slidably connected to the middle of the left side of the folding tube 5, a pull plate 11 is fixedly connected to the left end of the clamping column 10, and a clamping column 10 is slidably connected to the middle of the left side of the folding tube 5, and a pull plate 11 is fixedly connected to the left end of the clamping column 10. The pull plate 11 can be operated to adjust the position of the clamping column 10 to adapt to the folding of plastic boxes of different sizes. A spring 12 is sleeved on the outside of the clamping column 10, one end of the spring 12 is fixedly connected to the right side of the pull plate 11, and the other end is fixedly connected to the middle of the left side of the folding tube 5.

[0035] A U-shaped plate 13 is fixedly connected, and two auxiliary rods 14 are fixedly connected to the front and rear sides of the U-shaped plate 13. The auxiliary rod 14 is fixed on the inner side of the U-shaped plate 13, and a rotating component is fixedly connected to the top of the U-shaped plate 13 to assist in positioning the packaging box.

[0036] refer to Figure 1 , Figure 3 , Figure 4The front and rear ends of the rotating shaft 4 are externally rotatably connected to the middle inner wall of the support plate 2, the outside of the heating wire 8 is slidably connected to the inner wall of the groove 6, the adjacent side of the two heating wires 8 is externally fixedly connected to the outside of the folding tube 5, and a heating resistor 7 is fixedly connected to the inner side of the folding tube 5 close to the support plate 2. Heat is transferred to the outer edge of the folding tube 5 through the heating wire 8. The outside of the clamping column 10 is engaged with the inner wall of the clamping hole 9, one end of the spring 12 is fixedly connected to the right side of the pull plate 11, and the other end of the spring 12 is fixedly connected to the middle of the left side of the folding tube 5.

[0037] The left and right sides of the bottom end of the conveyor belt 1 are fixedly connected with supports 21, and the left side of the left support 21 is fixedly connected with two support rods 22, and the bottom ends of the support rods 22 are in contact with the bottom end of the receiving box 23. The bottom ends of the support rods 22 are in contact with the bottom end of the receiving box 23, providing stable support for the conveyor belt and guiding the receiving box 23.

[0038] refer to Figure 2 , Figure 5 The rotating assembly includes a motor 2 15, a turntable 16, two pull rods 17, two auxiliary plates 18, two collars 19 and two positioning blocks 20. The middle part of the top end of the U-shaped plate 13 is fixedly connected to the motor 2 15, the driving end of the motor 2 15 is fixedly connected to the turntable 16, and the left and right ends of the bottom end of the turntable 16 are rotatably connected to the pull rods 17. The middle part of the top end of the U-shaped plate 13 is fixedly connected to the motor 2 15, the driving end of the motor 2 15 is fixedly connected to the turntable 16, and the left and right ends of the bottom end of the turntable 16 are connected to the pull rods 17 through shafts for driving subsequent auxiliary operations.

[0039] Auxiliary plates 18 are slidably connected to the front and rear sides of the top of the conveyor belt 1. Two rings 19 are provided on the left side of the top of the auxiliary plate 18. Positioning blocks 20 are fixedly connected to the left ends of the adjacent sides of the two auxiliary plates 18. These rings 19 are slidably connected to the inner side of the U-shaped plate 13 through the outside of the auxiliary rod 14, so that the positioning blocks 20 can flexibly clamp and position the packaging box.

[0040] The middle inner wall of the ring 19 is slidably connected to the outside of the auxiliary rod 14, the top of the auxiliary plate 18 is slidably connected to the inner side of the U-shaped plate 13, the pull rod 17 is rotatably connected to the top of the positioning block 20 on the side away from the turntable 16, and the top of the turntable 16 is slidably connected to the middle of the bottom end of the auxiliary rod 14. After the auxiliary plate 18 moves relatively, because the auxiliary plate 18 slides on the top of the conveyor belt 1, and the ring 19 fixed to the auxiliary plate 18 is sleeved on the outside of the auxiliary rod 14 on the inner side of the U-shaped plate 13, when the auxiliary plate 18 slides, it is stabilized on the top of the conveyor belt 1 and moves relatively to flexibly clamp the flower packaging box at the top of the conveyor belt 1.

[0041] Working principle: When in use, the control end controls the start of the conveyor belt 1, motor 1 3, and motor 2 15. When the conveyor belt 1 is started, the conveyor belt begins to slide and transport the plastic box placed on the conveyor belt 1 at a stable speed, and the start of motor 2 15 preferentially drives the turntable 16 to rotate and pull the pull rod 17 to rotate, and then cooperates with the pull rod 17 to connect the positioning block 20 of the auxiliary plate 18, so when the pull rod 17 rotates, it will pull the auxiliary plate 18 to move relatively, and after the auxiliary plate 18 moves relatively, because the auxiliary plate 18 slides on the top of the conveyor belt 1, and the ring 19 fixed on the auxiliary plate 18 is sleeved on the outside of the auxiliary rod 14 on the inner side of the U-shaped plate 13, so when the auxiliary plate 18 slides, it is stable at the top of the conveyor belt 1 and moves relatively to flexibly clamp the flower packaging box at the top of the conveyor belt 1 to ensure that the packaging box enters the folding area smoothly and straightly.

[0042] When the packaging box moves to the position of the folding tube 5, the heating resistor 7 started in the rotating shaft 4 heats and transfers heat to the outer edge of the folding tube 5 through the heating wire 8, and cooperates with the motor 3 to drive the rotating shaft 4 to drive the fixed folding tube 5 to rotate rapidly, thereby heating and folding both sides of the plastic box moved to the bottom of the folding tube 5. After the folding is completed, it moves along the surface of the conveyor belt 1 and falls into the receiving box 23 for collection. At this time, the folding work is completed.

[0043] When in the folding area, the pull plate 11 on the folding tube 5 can be pulled to drive the clamping column 10 to squeeze the spring 12, so that the clamping column 10 can be disengaged from the clamping hole 9 of the rotating shaft 4. At this time, the clamping hole 9 in different positions can be selected according to the size of the plastic box. After releasing the pull plate 11, the clamping column 10 is driven by the elastic force of the spring 12 to engage with the clamping hole 9, thereby fixing the position of the two folding tubes 5, so as to perform folding actions on plastic boxes of different sizes.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A folding device for a plastic packaging box, comprising a conveyor belt (1) and a receiving box (23), characterized in that: The top and rear sides of the conveyor belt (1) are fixedly connected to support plates (2), the front end of the support plate (2) is fixedly connected to a motor (3), the driving end of the motor (3) is fixedly connected to a rotating shaft (4), the outside of the rotating shaft (4) is slidably connected to two folding tubes (5), the top and rear sides of the rotating shaft (4) are provided with grooves (6), the inside of the groove (6) is fixedly connected to a heating resistor (7) on one side close to the support plate (2), and the end of the heating resistor (7) close to the folding tube (5) is fixedly connected to a heating wire (8). A plurality of clamping holes (9) are provided on the left side of the rotating shaft (4); a clamping column (10) is slidably connected to the middle of the left side of the folding tube (5); a pull plate (11) is fixedly connected to the left end of the clamping column (10); a spring (12) is sleeved on the outside of the clamping column (10); a U-shaped plate (13) is fixedly connected to the middle of the top end of the conveyor belt (1); two auxiliary rods (14) are fixedly connected to the front and rear sides of the U-shaped plate (13); a rotating assembly is fixedly connected to the top end of the U-shaped plate (13); and the rotating assembly is used to assist in positioning the packaging box.

2. A folding device for a plastic packaging box according to claim 1, characterized in that: The rotating assembly comprises a second motor (15), a turntable (16), two pull rods (17), two auxiliary plates (18), two sleeve rings (19) and two positioning blocks (20); the middle part of the top end of the U-shaped plate (13) is fixedly connected to the second motor (15); the driving end of the second motor (15) is fixedly connected to the turntable (16); the left and right ends of the bottom end of the turntable (16) are rotatably connected to the pull rods (17); the front and rear sides of the top end of the conveyor belt (1) are slidably connected to the auxiliary plates (18); two sleeve rings (19) are provided on the left side of the top end of the auxiliary plates (18); and the left ends of the adjacent sides of the two auxiliary plates (18) are fixedly connected to the positioning blocks (20).

3. A folding device for a plastic packaging box according to claim 1, characterized in that: The front and rear ends of the rotating shaft (4) are externally rotatably connected to the middle inner wall of the support plate (2), and the outside of the heating wire (8) is slidably connected to the inner wall of the groove (6).

4. A folding device for a plastic packaging box according to claim 1, characterized in that: The outside of the adjacent side of the two heating wires (8) is fixedly connected to the outside of the folding tube (5), and the outside of the clamping column (10) is clamped with the inner wall of the clamping hole (9).

5. A folding device for a plastic packaging box according to claim 1, characterized in that: One end of the spring (12) is fixedly connected to the right side of the pull plate (11), and the other end of the spring (12) is fixedly connected to the middle part of the left side of the folding tube (5).

6. A folding device for a plastic packaging box according to claim 2, characterized in that: The inner wall of the middle part of the collar (19) is slidably connected to the outside of the auxiliary rod (14), and the top end of the auxiliary plate (18) is slidably connected to the inner side of the U-shaped plate (13).

7. A folding device for a plastic packaging box according to claim 2, characterized in that: The side of the pull rod (17) away from the rotating disk (16) is rotatably connected to the top of the positioning block (20), and the top of the rotating disk (16) is slidably connected to the middle of the bottom end of the auxiliary rod (14).

8. The folding device for a plastic packaging box according to claim 1, characterized in that: The bottom end of the conveyor belt (1) is fixedly connected to supports (21) on both sides, and the left side of the left support (21) is fixedly connected to two support rods (22), and the bottom ends of the support rods (22) are in contact with the bottom end of the receiving box (23).

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