Carton die-cutting machine

Abstract

The utility model discloses a carton die-cutting machine, which relates to the technical field of carton production, and comprises a bottom plate, a vertical plate is fixed on one side of the bottom plate, a conveying mechanism is mounted on the vertical plate, the conveying mechanism comprises a conveying belt, a plurality of grooves for containing single paperboards are uniformly arranged on the outer surface of the conveying belt at intervals, and the grooves are communicated with the bottom plate. An anti-cutting layer is fixed on the bottom wall of the groove; a horizontal plate is fixed to the top end of the vertical plate, a die cutting mechanism is installed at one end of the horizontal plate and located above the conveying belt, a limiting mechanism is installed at the other end of the horizontal plate, the bottom end of the limiting mechanism is in sliding contact with the upper surface of the conveying belt, and the paper stack is borne on the conveying belt. And the limiting mechanism can be used for limiting the paper stack. According to the carton die-cutting machine, paperboards can be accurately conveyed to a die-cutting station.

Description

Technical Field

[0001] The utility model relates to the technical field of carton production, in particular to a carton die-cutting machine. Background Art

[0002] During the carton production process, the cardboard needs to be die-cut to obtain the required shape or size.

[0003] The patent with announcement number CN219446274U discloses a carton die-cutting machine, which applies force to the carton in both directions through the pressure plate and the bottom plate to complete the die-cutting of the carton, making the cutting more thorough; the push plate and the pressure plate are connected by a spring, so that the die-cutting knife has elasticity to prevent the carton from being crushed by excessive die-cutting pressure; after the die-cutting is completed, the surface of the bottom plate is cleaned by a cleaning mechanism to prevent waste accumulation; an automatic feeding mechanism is set to avoid the trouble of manual feeding. However, the inventor found during use that: due to the certain distance between the feeding mechanism and the bottom plate, the cardboard cannot be accurately transferred to the bottom plate, and manual adjustment is required, which is time-consuming and labor-intensive.

[0004] Therefore, it is necessary to develop a carton die-cutting machine for the above-mentioned defects. Utility Model Content

[0005] The utility model aims to provide a carton die-cutting machine which can accurately convey paperboard to a die-cutting station.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The utility model discloses a carton die-cutting machine, comprising a bottom plate, a vertical plate fixed to one side of the bottom plate, a conveying mechanism installed on the vertical plate, the conveying mechanism comprising a conveyor belt, a plurality of grooves for containing single paperboards are evenly spaced on the outer surface of the conveyor belt, and an anti-cutting layer is fixed on the bottom wall of the groove;

[0008] A horizontal plate is fixed on the top of the vertical plate, a die-cutting mechanism is installed at one end of the horizontal plate, and the die-cutting mechanism is located above the conveyor belt. A limiting mechanism is installed at the other end of the horizontal plate, and the bottom end of the limiting mechanism is in sliding contact with the upper surface of the conveyor belt. The paper stack is supported on the conveyor belt, and the limiting mechanism can limit the side of the paper stack away from the vertical plate, the side of the paper stack close to the vertical plate, and the side of the paper stack close to the die-cutting mechanism.

[0009] Furthermore, the limiting mechanism includes a fixed plate, a first movable plate, a second movable plate and a driving assembly, the fixed plate is fixed to the bottom surface of the horizontal plate, the fixed plate is in contact with a side of the paper stack close to the die-cutting mechanism, the first movable plate and the second movable plate are both slidably connected to the bottom surface of the horizontal plate, the first movable plate is in contact with a side of the paper stack away from the vertical plate, the second movable plate is in contact with a side of the paper stack close to the vertical plate, the fixed plate, the first movable plate and the second movable plate are all in slidably contact with the upper surface of the conveyor belt, and the driving assembly is installed on the bottom surface of the horizontal plate, and the driving assembly can drive the first movable plate and the second movable plate to move closer to or away from each other.

[0010] Furthermore, the driving assembly includes a first reduction motor and a bidirectional screw rod, both ends of the bidirectional screw rod are provided with threads of opposite rotation directions, a support ear is fixed to the bottom surface of the horizontal plate, one end of the bidirectional screw rod is rotatably connected to the support ear, and the other end of the bidirectional screw rod is rotatably connected to the vertical plate, the bidirectional screw rod passes through the first movable plate and the second movable plate, the thread at one end of the bidirectional screw rod is threadedly connected to the first movable plate, and the thread at the other end of the bidirectional screw rod is threadedly connected to the second movable plate, the first reduction motor is fixedly connected to the vertical plate, and the driving shaft of the first reduction motor is coaxially fixedly connected to one end of the bidirectional screw rod.

[0011] Furthermore, the conveying mechanism also includes a first support plate, which is fixedly connected to the vertical plate, and the first support plate is located below the limiting mechanism and is arranged in the inner cavity of the conveyor belt, and the top surface of the first support plate is in contact with the conveyor belt.

[0012] Furthermore, the die-cutting mechanism includes a telescopic cylinder, a pressure plate and an elastic pressure assembly, the telescopic cylinder is fixedly connected to the horizontal plate, the telescopic end of the telescopic cylinder vertically penetrates the horizontal plate and is fixedly connected to the elastic pressure assembly, and the pressure plate is fixedly connected to the bottom end of the elastic pressure assembly.

[0013] Furthermore, the elastic pressure assembly includes a lifting plate, a sliding rod and a compression spring. The lifting plate is coaxially fixedly connected to the telescopic end of the telescopic cylinder. Several sliding rods are evenly distributed and fixed on the top surface of the pressure plate. The top end of the sliding rod slides through the lifting plate and is fixedly connected to a limiting cap. The bottom end of the compression spring abuts against the pressure plate, and the top end of the compression spring abuts against the lifting plate.

[0014] Furthermore, a plurality of compression springs are provided and are arranged one-to-one corresponding to the slide bars, and the compression springs are sleeved on the corresponding slide bars.

[0015] Furthermore, the conveying mechanism also includes a rotating shaft, a second reduction motor and a plurality of seat bearings. There are at least four rotating shafts, and the conveyor belt is in a quadrilateral shape and is mounted on the four rotating shafts. One end of the rotating shaft is rotatably connected to the vertical plate through the seat bearings, the second reduction motor is fixedly connected to the vertical plate, and the output shaft of the second reduction motor is coaxially fixedly connected to one end of any one of the rotating shafts.

[0016] Furthermore, the conveying mechanism also includes a second support plate, which is fixedly connected to the vertical plate, and the second support plate is located below the die-cutting mechanism and is arranged in the inner cavity of the conveyor belt, and the top surface of the second support plate is in contact with the conveyor belt.

[0017] Compared with the prior art, the beneficial technical effects of the utility model are:

[0018] The utility model provides a carton die-cutting machine. Since the limiting mechanism limits the paper stack, the paper stack will not move or shake at will, thereby ensuring that the paperboard at the bottom of the paper stack can correctly enter the groove. The groove limits the paperboard, and the paperboard is then conveyed to the bottom of the die-cutting mechanism through the conveyor belt. In summary, it is ensured that the paperboard is accurately conveyed to the die-cutting station, and no manual adjustment is required during the whole process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another angle;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the utility model from another angle;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the utility model from another angle;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the utility model from another angle.

[0025] Explanation of the reference numerals in the accompanying drawings: 1. bottom plate; 2. vertical plate; 3. conveyor belt; 301. groove; 4. horizontal plate; 5. paper stack; 6. fixed plate; 7. first movable plate; 8. second movable plate; 9. first reduction motor; 10. bidirectional screw rod; 11. first support plate; 12. telescopic cylinder; 13. pressure plate; 14. lifting plate; 15. slide rod; 16. compression spring; 17. limit cap; 18. rotating shaft; 19. second reduction motor; 20. seat bearing; 21. second support plate; 22. die-cutting knife. DETAILED DESCRIPTION

[0026] The core of the utility model is to provide a carton die-cutting machine, which can accurately convey paperboard to the die-cutting station.

[0027] 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.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "middle", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In a specific embodiment of the present invention, Figures 1 to 5 As shown, it comprises a bottom plate 1, a vertical plate 2 is fixed on one side of the bottom plate 1, a conveying mechanism is installed on the vertical plate 2, and the conveying mechanism comprises a conveyor belt 3, a plurality of grooves 301 for containing a single cardboard are evenly spaced on the outer surface of the conveyor belt 3 (that is, the depth of the groove 301 matches the thickness of the cardboard), and an anti-cutting layer is fixed on the bottom wall of the groove 301 (the anti-cutting layer can be but is not limited to: a flexible metal plate, a steel wire layer, a Kevlar cloth layer or other anti-cutting materials);

[0030] A horizontal plate 4 is fixed to the top of the vertical plate 2, and a die-cutting mechanism is installed at one end of the horizontal plate 4. The die-cutting mechanism is located above the conveyor belt 3. A limiting mechanism is installed at the other end of the horizontal plate 4. The bottom end of the limiting mechanism is in sliding contact with the upper surface of the conveyor belt 3. The paper stack 5 is supported on the conveyor belt 3. The limiting mechanism can limit the side of the paper stack 5 away from the vertical plate 2, the side of the paper stack 5 close to the vertical plate 2, and the side of the paper stack 5 close to the die-cutting mechanism.

[0031] Specifically, when the conveyor belt 3 passes under the paper stack 5, the cardboard at the bottom of the paper stack 5 enters the groove 301, and then the cardboard continues to move with the conveyor belt 3 to the bottom of the die-cutting mechanism, and the die-cutting mechanism performs die-cutting on the cardboard. Since the limiting mechanism limits the position of the paper stack 5, the paper stack 5 will not move or shake at will, thereby ensuring that the cardboard at the bottom of the paper stack 5 can correctly enter the groove 301, and then the groove 301 limits the position of the cardboard, and then the cardboard is conveyed to the bottom of the die-cutting mechanism through the conveyor belt 3. In summary, it is ensured that the cardboard is accurately conveyed to the die-cutting station.

[0032] The limiting mechanism includes a fixed plate 6, a first movable plate 7, a second movable plate 8 and a driving assembly, wherein the fixed plate 6 is fixed to the bottom surface of the horizontal plate 4, the fixed plate 6 contacts the side of the paper stack 5 close to the die-cutting mechanism, the first movable plate 7 and the second movable plate 8 are both slidably connected to the bottom surface of the horizontal plate 4, the first movable plate 7 contacts the side of the paper stack 5 away from the vertical plate 2, the second movable plate 8 contacts the side of the paper stack 5 close to the vertical plate 2, the fixed plate 6, the first movable plate 7 and the second movable plate 8 are all in sliding contact with the upper surface of the conveyor belt 3, and the driving assembly is installed on the bottom surface of the horizontal plate 4, and the driving assembly can drive the first movable plate 7 and the second movable plate 8 to move closer to or away from each other. Specifically, the distance between the first movable plate 7 and the second movable plate 8 is adjusted by the driving assembly so that the distance between the first movable plate 7 and the second movable plate 8 matches the width of the groove 301, thereby ensuring that the cardboard at the bottom end of the paper stack 5 can correctly enter the groove 301.

[0033] The driving assembly includes a first reduction motor 9 and a bidirectional screw 10. The two ends of the bidirectional screw 10 are provided with threads with opposite rotation directions. A lug is fixed to the bottom surface of the horizontal plate 4. One end of the bidirectional screw 10 is rotatably connected to the lug, and the other end of the bidirectional screw 10 is rotatably connected to the vertical plate 2. The bidirectional screw 10 passes through the first movable plate 7 and the second movable plate 8. The thread at one end of the bidirectional screw 10 is threadedly connected to the first movable plate 7, and the thread at the other end of the bidirectional screw 10 is threadedly connected to the second movable plate 8. The first reduction motor 9 is fixedly connected to the vertical plate 2, and the driving shaft of the first reduction motor 9 is coaxially fixedly connected to one end of the bidirectional screw 10. Specifically, the driving shaft of the first reduction motor 9 drives the bidirectional screw 10 to rotate, and the bidirectional screw 10 threads drive the first movable plate 7 and the second movable plate 8 to move closer to or away from each other.

[0034] The conveying mechanism further includes a first support plate 11, which is fixedly connected to the vertical plate 2, and is located below the limiting mechanism and disposed in the inner cavity of the conveyor belt 3, and the top surface of the first support plate 11 is in contact with the conveyor belt 3. Specifically, the first support plate 11 supports the conveyor belt 3 to prevent the conveyor belt 3 from being bent by the paper stack 5, thereby ensuring that the paperboard at the bottom of the paper stack 5 can correctly enter the groove 301.

[0035] The die-cutting mechanism includes a telescopic cylinder 12, a pressure plate 13 and an elastic pressure component. The telescopic cylinder 12 is fixedly connected to the horizontal plate 4. The telescopic end of the telescopic cylinder 12 vertically penetrates the horizontal plate 4 and is fixedly connected to the elastic pressure component. The pressure plate 13 is fixedly connected to the bottom end of the elastic pressure component. Specifically, the telescopic cylinder 12 can be, but is not limited to: a pneumatic telescopic cylinder, a hydraulic telescopic cylinder or an electric telescopic cylinder. Before production, the die-cutting knife 22 is installed on the bottom surface of the pressure plate 13. During the die-cutting operation, the telescopic end of the telescopic cylinder 12 drives the elastic pressure component to descend, and the elastic pressure component drives the pressure plate 13 to descend, then the die-cutting knife 22 synchronously descends and performs die-cutting on the cardboard. After the die-cutting is completed, the telescopic end of the telescopic cylinder 12 drives the elastic pressure component to rise, then the pressure plate 13 and the die-cutting knife 22 synchronously rise.

[0036] The elastic pressure component includes a lifting plate 14, a slide bar 15 and a compression spring 16. The lifting plate 14 is coaxially fixedly connected to the telescopic end of the telescopic cylinder 12. A plurality of slide bars 15 are evenly distributed and fixed on the top surface of the pressing plate 13. The top end of the slide bar 15 slides through the lifting plate 14 and is fixedly connected to the limiting cap 17. The bottom end of the compression spring 16 abuts against the pressing plate 13, and the top end of the compression spring 16 abuts against the lifting plate 14. Specifically, the compression spring 16 is provided to make the pressing plate 13 elastic, so as to prevent the pressing plate 13 from exerting too much pressure on the paperboard during the die-cutting process and damaging the paperboard.

[0037] A plurality of compression springs 16 are provided and are arranged one-to-one with the slide bars 15, and the compression springs 16 are sleeved on the corresponding slide bars 15. Specifically, when the die-cutting knife 22 contacts the paperboard, the telescopic end of the telescopic cylinder 12 continues to extend, and the lifting plate 14 is synchronously lowered, and the lifting plate 14 applies pressure to the compression springs 16, and the compression springs 16 apply pressure to the pressing plate 13, and the pressing plate 13 drives the die-cutting knife 22 to descend, and the die-cutting knife 22 cuts the paperboard.

[0038] The transmission mechanism further includes a rotating shaft 18, a second reduction motor 19 and a plurality of bearings 20 with seats. There are at least four rotating shafts 18. The conveyor belt 3 is sleeved on the four rotating shafts 18 in a quadrilateral shape. One end of the rotating shaft 18 is rotatably connected to the vertical plate 2 through the bearings 20 with seats. The second reduction motor 19 is fixedly connected to the vertical plate 2. The output shaft of the second reduction motor 19 is coaxially fixedly connected to one end of any rotating shaft 18. Specifically, the output shaft of the second reduction motor 19 drives the rotating shaft 18 connected thereto, and the rotating shaft 18 drives the conveyor belt 3 to move.

[0039] The conveying mechanism further includes a second support plate 21, which is fixedly connected to the vertical plate 2, and is located below the die-cutting mechanism and disposed in the inner cavity of the conveyor belt 3, and the top surface of the second support plate 21 is in contact with the conveyor belt 3. Specifically, the second support plate 21 supports the conveyor belt 3 to prevent the conveyor belt 3 from being excessively bent during the die-cutting process, thereby ensuring the die-cutting quality.

[0040] The utility model discloses a working principle of a carton die-cutting machine: before production, a die-cutting knife 22 is installed on the bottom surface of a pressing plate 13, a paper stack 5 is placed in a chamber formed by a fixed plate 6, a first movable plate 7 and a second movable plate 8, and the paper stack 5 is supported on a conveyor belt 3; during the die-cutting process, the conveyor belt 3 is driven to move by a second reduction motor 19, and when the groove 301 moves to the bottom of the paper stack 5, the paperboard at the bottom of the paper stack 5 enters the groove 301, and when the paperboard moves with the conveyor belt 3 to the bottom of the die-cutting knife 22, the conveyor belt 3 stops, and the telescopic end of the telescopic cylinder 12 is driven When the lifting plate 14 descends, the pressing plate 13 descends synchronously. When the die-cutting knife 22 contacts the cardboard, the telescopic end of the telescopic cylinder 12 continues to extend, and the lifting plate 14 continues to descend. The lifting plate 14 applies pressure to the compression spring 16, and the compression spring 16 applies pressure to the pressing plate 13. The pressing plate 13 drives the die-cutting knife 22 to descend, so that the die-cutting knife 22 die-cuts the cardboard. After the die-cutting is completed, the telescopic end of the telescopic cylinder 12 drives the elastic pressure component to rise, and the pressing plate 13 and the die-cutting knife 22 rise synchronously, and the conveyor belt 3 continues to move, thereby completing the die-cutting operation of a cardboard.

[0041] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other, and the embodiments can be combined with each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0042] The above embodiments are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A carton die-cutting machine, characterized in that: The invention comprises a bottom plate (1), a vertical plate (2) being fixed on one side of the bottom plate (1), a conveying mechanism being installed on the vertical plate (2), the conveying mechanism comprising a conveyor belt (3), a plurality of grooves (301) for containing a single cardboard being evenly spaced on the outer surface of the conveyor belt (3), and an anti-cutting layer being fixed on the bottom wall of the groove (301); A horizontal plate (4) is fixed to the top of the vertical plate (2), a die-cutting mechanism is installed at one end of the horizontal plate (4), and the die-cutting mechanism is located above the conveyor belt (3). A limiting mechanism is installed at the other end of the horizontal plate (4), and the bottom end of the limiting mechanism is in sliding contact with the upper surface of the conveyor belt (3). The paper stack (5) is supported on the conveyor belt (3), and the limiting mechanism can limit the side of the paper stack (5) away from the vertical plate (2), the side of the paper stack (5) close to the vertical plate (2), and the side of the paper stack (5) close to the die-cutting mechanism.

2. The carton die-cutting machine according to claim 1, characterized in that: The limiting mechanism comprises a fixed plate (6), a first movable plate (7), a second movable plate (8) and a driving assembly, wherein the fixed plate (6) is fixed on the bottom surface of the horizontal plate (4), the fixed plate (6) contacts the side of the paper stack (5) close to the die-cutting mechanism, the first movable plate (7) and the second movable plate (8) are both slidably connected to the bottom surface of the horizontal plate (4), the first movable plate (7) contacts the side of the paper stack (5) away from the vertical plate (2), the second movable plate (8) contacts the side of the paper stack (5) close to the vertical plate (2), the fixed plate (6), the first movable plate (7) and the second movable plate (8) are all in slidably contact with the upper surface of the conveyor belt (3), and the driving assembly is installed on the bottom surface of the horizontal plate (4), and the driving assembly can drive the first movable plate (7) and the second movable plate (8) to move closer to or away from each other.

3. The carton die-cutting machine according to claim 2, characterized in that: The driving assembly comprises a first reduction motor (9) and a bidirectional screw rod (10), both ends of the bidirectional screw rod (10) are provided with threads with opposite rotation directions, a support ear is fixed to the bottom surface of the horizontal plate (4), one end of the bidirectional screw rod (10) is rotatably connected to the support ear, and the other end of the bidirectional screw rod (10) is rotatably connected to the vertical plate (2), the bidirectional screw rod (10) passes through the first movable plate (7) and the second movable plate (8), the thread at one end of the bidirectional screw rod (10) is threadedly connected to the first movable plate (7), and the thread at the other end of the bidirectional screw rod (10) is threadedly connected to the second movable plate (8), the first reduction motor (9) is fixedly connected to the vertical plate (2), and the driving shaft of the first reduction motor (9) is coaxially fixedly connected to one end of the bidirectional screw rod (10).

4. The carton die-cutting machine according to any one of claims 1 to 3, characterized in that: The conveying mechanism further comprises a first support plate (11), the first support plate (11) being fixedly connected to the vertical plate (2), and the first support plate (11) being located below the limiting mechanism and arranged in the inner cavity of the conveying belt (3), and the top surface of the first support plate (11) being in contact with the conveying belt (3).

5. The carton die-cutting machine according to claim 1, characterized in that: The die-cutting mechanism comprises a telescopic cylinder (12), a pressure plate (13) and an elastic pressure component, wherein the telescopic cylinder (12) is fixedly connected to the horizontal plate (4), the telescopic end of the telescopic cylinder (12) vertically penetrates the horizontal plate (4) and is fixedly connected to the elastic pressure component, and the pressure plate (13) is fixedly connected to the bottom end of the elastic pressure component.

6. The carton die-cutting machine according to claim 5, characterized in that: The elastic pressure component comprises a lifting plate (14), a sliding rod (15) and a compression spring (16); the lifting plate (14) is coaxially fixedly connected to the telescopic end of the telescopic cylinder (12); a plurality of sliding rods (15) are evenly distributed and fixed on the top surface of the pressure plate (13); the top end of the sliding rod (15) slides through the lifting plate (14) and is fixedly connected to a limiting cap (17); the bottom end of the compression spring (16) abuts against the pressure plate (13); and the top end of the compression spring (16) abuts against the lifting plate (14).

7. The carton die-cutting machine according to claim 6, characterized in that: A plurality of compression springs (16) are provided and are arranged one-to-one corresponding to the slide bars (15), and the compression springs (16) are sleeved on the corresponding slide bars (15).

8. The carton die-cutting machine according to claim 1, characterized in that: The transmission mechanism also includes a rotating shaft (18), a second reduction motor (19) and a plurality of seat bearings (20). There are at least four rotating shafts (18). The conveyor belt (3) is sleeved on the four rotating shafts (18) in a quadrilateral shape. One end of the rotating shaft (18) is rotatably connected to the vertical plate (2) through the seat bearings (20). The second reduction motor (19) is fixedly connected to the vertical plate (2). The output shaft of the second reduction motor (19) is coaxially fixedly connected to one end of any of the rotating shafts (18).

9. The carton die-cutting machine according to claim 1 or 8, characterized in that: The conveying mechanism further comprises a second support plate (21), the second support plate (21) being fixedly connected to the vertical plate (2), and the second support plate (21) being located below the die-cutting mechanism and arranged in the inner cavity of the conveying belt (3), and the top surface of the second support plate (21) being in contact with the conveying belt (3).

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