Box folding mechanism for box folding machine

Abstract

The utility model discloses a box folding mechanism for a box folding machine, which comprises a turnover mechanism comprising a group of first box folding plates which are spaced front and back and synchronously arranged in an up-and-down moving manner, and two groups of second box folding plates which are spaced left and right and arranged on the outer sides of the first box folding plates, and the second box folding plates on the same side are spaced and synchronously arranged in a left-and-right moving manner; the shaping mechanism is mounted below the folding mechanism, is matched with the folding mechanism to perform folding, tight pressing and shaping on the paperboard blank, and comprises a material pressing part which is mounted above the folding mechanism in an up-down moving manner, and a corresponding ultrasonic transducer is arranged above the material pressing part; when the box is folded, the first box folding plate moves upwards to form a box folding area with the second box folding plate, and the distance between the side wall of the downwards-moving material pressing piece and the first box folding plate and the distance between the side wall of the downwards-moving material pressing piece and the second box folding plate are both the thickness of a paperboard. According to the paperboard shaping device, the pressing piece is matched with the folding mechanism to perform tight press-fit shaping, meanwhile, the ultrasonic transducer converts electric signals into mechanical vibration through the piezoelectric effect so as to reinforce shaping of paperboards, the shaping efficiency is improved, and the shaping effect is accelerated.

Description

Technical Field

[0001] The utility model relates to box folding equipment, in particular to a box folding mechanism for a box folding machine. Background Art

[0002] At present, in the manufacturing process, most simple packaging boxes are folded manually, resulting in high labor costs and low work efficiency. In addition, folding packaging boxes is a mechanical and repetitive labor, the labor intensity of workers is high, and the quality of packaging boxes is uneven. In the prior art, an automatic box folding machine is used to replace manual box folding, which effectively solves the problems of high labor costs and high labor intensity. The automatic box folding machine mainly includes a cardboard feeding mechanism, a cardboard transfer mechanism, a folding mechanism, a shaping mechanism and a finished product output mechanism. The feeding mechanism picks up the stacked cardboard blanks one by one and then transfers them to the top of the folding mechanism by the transfer mechanism. The folding mechanism and the shaping mechanism cooperate with each other to form the blanks, and finally the finished product output mechanism transmits them outward. The whole process forms an overall assembly line action.

[0003] In order to improve the overall processing efficiency, the efficiency of both the loading and folding operations must be improved at the same time. Otherwise, if only one is improved, it is necessary to wait for the other operation to be completed before the continuous action can be performed, and the overall efficiency has not been substantially improved. However, the folding box shaping requires sufficient time to ensure the shaping effect of the folding box. Some even add hot pressing equipment to speed up the efficiency, but delayed shaping will lead to slow processing efficiency. This causes the processing efficiency to stagnate and cannot be improved now.

[0004] Therefore, on the basis of ensuring that the folding action is completed smoothly, the research purpose of the utility model is to design a folding mechanism for a folding machine that can quickly fold and shape the boxes and greatly improve the processing efficiency. Utility Model Content

[0005] In view of the technical problems existing in the above-mentioned prior art, the utility model provides a box folding mechanism for a box folding machine, which can effectively solve the technical problems existing in the above-mentioned prior art.

[0006] The technical solution of the utility model is:

[0007] A box folding mechanism for a box folding machine, comprising:

[0008] The folding mechanism comprises a set of first folding box plates which are spaced apart from each other and are synchronously moved up and down, and two sets of second folding box plates which are spaced apart from each other and are arranged outside the first folding box plates, and the second folding box plates on the same side are spaced apart and are synchronously moved left and right;

[0009] The shaping mechanism is installed below the folding mechanism and cooperates with the folding mechanism to fold and press the cardboard blank tightly into shape, and includes a pressing piece installed above the folding mechanism and moves up and down, and a corresponding ultrasonic transducer is arranged above the pressing piece; the first folding box plate and the second folding box plate are both hollow box-shaped structures, and a plurality of air holes connected to the hollow containing cavities are evenly distributed on the side facing the pressing piece, the hollow containing cavities of the first folding box plate and the second folding box plate are externally connected to a vacuum pump, and the other side of the first folding box plate and the second folding box plate where no air holes are arranged are respectively installed with synchronous pressure relief valves connected to their respective hollow containing cavities.

[0010] When folding the box, the first folding plate moves up to form a folding area with the second folding plate, and the distances between the downwardly moved side wall of the pressing piece and the first folding plate and the second folding plate are both equal to the thickness of the paperboard.

[0011] The hollow accommodating cavities of the first folding box plate and the second folding box plate are filled with a plurality of damping particles for vibration reduction.

[0012] The two second folding box plates on the same side are connected to the first cylinder through a connecting plate, and corresponding third folding box plates are installed on the connecting plate on the outer side of the second folding box plates. The third folding box plates are arranged on the same side as the second folding box plates and are higher than the second folding box plates. The top of the third folding box plate is vertically fixed with a fourth folding box plate arranged on the same side as the first folding box plate, and the fourth folding box plate is higher than the second folding box plates and lower than the third folding box plates.

[0013] The first folding box plates are all fixedly connected to a horizontal plate driven up and down by a second cylinder, and the top ends of the first folding box plates, the second folding box plates and the fourth folding box plates are all bent outwards and tilted.

[0014] The ultrasonic transducer is electrically connected to an external ultrasonic generator.

[0015] The shaping mechanism includes a lifting cylinder fixedly connected to a corresponding support frame for driving the pressing piece to move up and down, the piston rod of the lifting cylinder and the pressing piece are connected through a corresponding bracket, and guide rods passing through the support frame are installed on both sides of the bracket through corresponding linear bearings.

[0016] Advantages of the utility model:

[0017] 1) The utility model utilizes a pressing piece in conjunction with a folding mechanism to perform shaping through tight pressing, while an ultrasonic transducer converts electrical signals into mechanical vibrations through a piezoelectric effect to strengthen shaping of the paperboard, thereby improving shaping efficiency and accelerating shaping effects.

[0018] 2) In order to ensure the effect of vibration shaping, the distance between the side wall of the pressing piece and the first folding plate and the second folding plate is the thickness of the paperboard, so as to ensure that the paperboard is tightly arranged between the pressing piece and the folding mechanism when the paperboard is formed. However, such a tight arrangement makes it easy for the paper box to be stuck on the pressing piece after folding and shaping and cannot fall off. Therefore, by setting the first folding plate and the second folding plate as a hollow box body structure, a vent hole is set on the side of the hollow box body facing the pressing piece and connected to a vacuum pump. After the folding and shaping is completed, the paper box is adsorbed and fixed in the folding mechanism through vacuuming, which makes it easy for the pressing piece to easily detach from the paper box and reset, and then it can be transported outward after the pressure is released by the synchronous pressure relief valve.

[0019] 3) The folding box plate is easily deformed due to long-term ultrasonic vibration. Setting the folding box plate into a box shape can enhance its rigidity, and filling a large number of damping particles in the hollow box body. The friction and collision of the damping particles are used to eliminate the adverse effects of vibration, and avoid the vibration from being transmitted to the folding box plate through the cardboard, thereby ensuring the service life of the folding box plate. Setting the folding box plate into a box shape can enhance its rigidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of the use state of the utility model when folding a box.

[0022] Figure 3 It is a schematic cross-sectional view of the first folding box plate.

[0023] In the accompanying drawings: folding mechanism 1, first folding box plate 101, second folding box plate 102, first cylinder 103, third folding box plate 104, fourth folding box plate 105, second cylinder 106, cross plate 107, shaping mechanism 2, pressing piece 201, ultrasonic transducer 202, lifting cylinder 203, bracket 204, linear bearing 205, guide rod 206, damping particles 3, air holes 4, synchronous pressure relief valve 5, vacuum suction cup 6, cardboard blank 7. DETAILED DESCRIPTION

[0024] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the accompanying drawings:

[0025] refer to Figure 1-3 , a box folding mechanism for a box folding machine, comprising:

[0026] The folding mechanism 1 comprises a set of first folding box plates 101 which are spaced apart from each other and move up and down synchronously, and two sets of second folding box plates 102 which are spaced apart from each other and are arranged outside the first folding box plates 101, and the second folding box plates 102 on the same side are spaced apart and move left and right synchronously;

[0027] The shaping mechanism 2 is installed below the folding mechanism 1, and cooperates with the folding mechanism 1 to fold and press the cardboard blank tightly into shape, and includes a pressing piece 201 installed above the folding mechanism 1 and moving up and down, and a corresponding ultrasonic transducer 202 is arranged above the pressing piece 201; the first folding box plate 101 and the second folding box plate 102 are both hollow box-shaped structures, and a plurality of air holes 4 connecting the hollow containing cavities are evenly distributed on the side facing the pressing piece 201, the hollow containing cavities of the first folding box plate 101 and the second folding box plate 102 are externally connected to a vacuum pump, and the other side of the first folding box plate 101 and the second folding box plate 102 where the air holes 4 are not arranged are respectively installed with synchronous pressure relief valves 5 connecting their respective hollow containing cavities.

[0028] The utility model utilizes the pressing piece 201 to cooperate with the folding mechanism 1 to shape the paperboard through tight pressing, while the ultrasonic transducer 202 converts the electrical signal into mechanical vibration through the piezoelectric effect to strengthen the shaping of the paperboard, thereby improving the shaping efficiency and accelerating the shaping effect.

[0029] When folding boxes, the first folding plate 101 moves upward to form a folding area with the second folding plate 102, and the distances between the side wall of the downward pressing piece 201 and the first folding plate 101 and the second folding plate 102 are both equal to the thickness of the paperboard.

[0030] In order to ensure the effect of vibration shaping, the utility model has a spacing between the side wall of the pressing piece 201 and the first folding plate 101 and the second folding plate 102 equal to the thickness of the paperboard, so as to ensure that the paperboard is tightly arranged between the pressing piece 201 and the folding mechanism 1 when the paperboard is formed. However, such a tight arrangement makes it easy for the paper box after folding and shaping to be stuck on the pressing piece 201 and unable to fall off. Therefore, by setting the first folding plate 101 and the second folding plate 102 as a hollow box body structure, a vent hole 4 is set on the side of the hollow box body facing the pressing piece 201 and connected to a vacuum pump. After the folding and shaping is completed, the paper box is adsorbed and fixed in the folding mechanism 1 by vacuuming, so that the pressing piece 201 can be easily separated from the paper box and reset, and can be transported outward after the pressure is released by the synchronous pressure relief valve 5.

[0031] The hollow accommodating cavities of the first folding box plate 101 and the second folding box plate 102 are filled with a plurality of damping particles 3 for absorbing vibrations.

[0032] The folding box plate is easily deformed due to long-term ultrasonic vibration. Setting the folding box plate into a box shape can enhance the rigidity, and filling a large number of damping particles 3 in the hollow box body. The friction and collision of the damping particles 3 are used to eliminate the adverse effects of the vibration, and avoid the vibration from being transmitted to the folding box plate through the cardboard, thereby ensuring the service life of the folding box plate. Setting the folding box plate into a box shape can enhance its rigidity.

[0033] The two second folding box plates 102 on the same side are connected to the first cylinder 103 through a connecting plate, and corresponding third folding box plates 104 are installed on the connecting plate on the outer side of the second folding box plates 102. The third folding box plates 104 are arranged on the same side as the second folding box plates 102 and are higher than the second folding box plates 102. The top of the third folding box plate 104 is vertically fixed with a fourth folding box plate 105 arranged on the same side as the first folding box plate 101. The fourth folding box plate 105 is higher than the second folding box plate 102 and lower than the third folding box plate 104.

[0034] The first folding plate 101 is fixedly connected to a horizontal plate 107 driven up and down by a second cylinder 106. The top ends of the first folding plate 101, the second folding plate 102 and the fourth folding plate 105 are bent outward and tilted.

[0035] The ultrasonic transducer 202 is electrically connected to an external ultrasonic generator.

[0036] The shaping mechanism 2 includes a lifting cylinder 203 fixedly connected through a corresponding support frame for driving the pressing piece 201 to move up and down, the piston rod of the lifting cylinder 203 and the pressing piece 201 are connected through a corresponding bracket 204, and guide rods 206 that pass through the support frame are installed on both sides of the bracket 204 through corresponding linear bearings 205.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A box folding mechanism for a box folding machine, characterized in that: include: The folding mechanism (1) comprises a set of first folding plates (101) spaced apart from each other and arranged to move up and down synchronously, and two sets of second folding plates (102) spaced apart from each other and arranged outside the first folding plates (101), wherein the second folding plates (102) on the same side are spaced apart from each other and arranged to move left and right synchronously; The shaping mechanism (2) is installed below the folding mechanism (1) and cooperates with the folding mechanism (1) to fold and tightly press the cardboard blank into a shaping mechanism, and comprises a pressing piece (201) installed above the folding mechanism (1) and moving up and down, and a corresponding ultrasonic transducer (202) is arranged above the pressing piece (201); the first folding box plate (101) and the second folding box plate (102) are both hollow box-shaped structures, and a plurality of air holes (4) connected to the hollow accommodating cavities are evenly distributed on the side facing the pressing piece (201); the hollow accommodating cavities of the first folding box plate (101) and the second folding box plate (102) are externally connected to a vacuum pump, and the other side of the first folding box plate (101) and the second folding box plate (102) where the air holes (4) are not arranged are respectively installed with synchronous pressure relief valves (5) connected to their respective hollow accommodating cavities.

2. A box folding mechanism for a box folding machine according to claim 1, characterized in that: When folding boxes, the first folding plate (101) moves upward to form a folding area with the second folding plate (102), and the distances between the side walls of the downward pressing piece (201) and the first folding plate (101) and the second folding plate (102) are both equal to the thickness of the paperboard.

3. A box folding mechanism for a box folding machine according to claim 1, characterized in that: The hollow accommodating cavities of the first folding box plate (101) and the second folding box plate (102) are filled with a plurality of damping particles (3) for absorbing vibrations.

4. A box folding mechanism for a box folding machine according to claim 1, characterized in that: Two second folding box plates (102) on the same side are connected to the first cylinder (103) through a connecting plate, and corresponding third folding box plates (104) are installed on the connecting plate on the outer side of the second folding box plates (102). The third folding box plates (104) are arranged on the same side as the second folding box plates (102) and are higher than the second folding box plates (102). The top of the third folding box plates (104) is vertically fixed with a fourth folding box plate (105) arranged on the same side as the first folding box plate (101), and the fourth folding box plate (105) is higher than the second folding box plates (102) and lower than the third folding box plates (104).

5. A box folding mechanism for a box folding machine according to claim 4, characterized in that: The first folding plate (101) is fixedly connected to a horizontal plate (107) driven up and down by a second cylinder (106), and the top ends of the first folding plate (101), the second folding plate (102) and the fourth folding plate (105) are bent outward and tilted.

6. A box folding mechanism for a box folding machine according to claim 1, characterized in that: The ultrasonic transducer (202) is electrically connected to an external ultrasonic generator.

7. A box folding mechanism for a box folding machine according to claim 1, characterized in that: The shaping mechanism (2) comprises a lifting cylinder (203) fixedly connected via a corresponding support frame for driving the pressing piece (201) to move up and down, the piston rod of the lifting cylinder (203) and the pressing piece (201) are connected via a corresponding support (204), and guide rods (206) penetrating the support frame are installed on both sides of the support (204) via corresponding linear bearings (205).

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