Automatic box opening device

Abstract

The utility model relates to the technical field of case unpacking machines, and discloses an automatic case unpacking device which comprises a machine frame and a conveying mechanism, and the conveying mechanism is assembled on the machine frame and used for conveying cigarette cases to be opened. The cutting device comprises a rack and further comprises induction units, cutting assemblies and driving units, the induction units, the cutting assemblies and the driving units are all arranged on the rack, the induction units are electrically connected with the driving units, the driving units are in transmission connection with the cutting assemblies, and the two cutting assemblies and the two driving units are in one-to-one correspondence. The two cutting assemblies are arranged in the conveying direction of the conveying mechanism in a spaced mode, and the two cutting assemblies have the height difference so as to be used for cutting cigarette boxes with sealing adhesive tape of different heights. The sensing unit can detect the height of the cigarette box entering the conveying mechanism and transmit a height signal to the driving unit, and the driving unit can adjust the different cutting assemblies to be close to or away from the conveying mechanism according to the height signal so that the cigarette box with the side portion provided with sealing adhesive tape of different heights can be accurately cut.

Description

Technical Field

[0001] The utility model relates to the technical field of box opening machines, in particular to an automatic box opening device. Background Art

[0002] Automatic carton openers are conventional equipment for cigarette sorting. Currently, the types of automatic carton openers for standard cigarette sorting lines in the tobacco industry are divided into laser carton openers and blade carton openers. The most commonly used are blade carton openers, which open the carton in the form of a blade pressing and cutting the sealing glue on the carton cover to achieve the purpose of opening the carton.

[0003] Now the standard cigarette boxes are divided into hard boxes and soft boxes. There is a certain height difference between the sealing glue gaps of the two types of cigarette boxes. When opening the boxes, the sealing glue gaps at different heights need to be cut. The patent with the authorization announcement number CN210338561U discloses a packaging box unpacking device, including an installation floor, a support frame is fixedly connected to the top of the installation floor, a working platform is fixedly connected to the side of the support frame away from the installation floor, a conveying mechanism is fixedly installed on the working platform, a fixed frame is fixedly connected to one side of the top of the working platform, a movable frame is movably connected to the upper part of the fixed frame, a cutting plate is movably connected to the side of the movable frame away from the fixed frame, a positioning groove is provided on the side of the cutting plate away from the fixed frame, a blade is arranged inside the positioning groove, a fastening stud is connected to the inner thread of the side of the cutting plate close to the blade, a reset spring is not fixedly connected to the top bone of the movable frame, and one end of the reset spring away from the movable frame is fixed to the fixed frame; adjustment mechanisms are arranged on both sides of the working platform, the adjustment mechanisms include an electric push rod, a connecting shaft, a clamping plate and a guide block, the electric push rod is fixed to both sides of the working platform, the output end of the electric push rod is fixedly connected to the connecting shaft, the side of the connecting shaft away from the output end of the electric push rod is fixedly connected to the clamping plate, one side of the electric push rod is provided with a guide block, and the connecting shaft is inserted into the internal guide hole of the guide block.

[0004] The above-mentioned box opening equipment uses gravity and a return spring to automatically adjust the height of the blade to cut the sealing tape on boxes of different heights. However, the above-mentioned box opening equipment is suitable for boxes of different sizes and heights. The sealing tape of such boxes is arranged on the top, and the blade moves vertically to achieve cutting. For cigarette boxes of the same size but with the sealing tape on the side and different sealing tape heights, the above-mentioned box opening equipment cannot open the boxes. Utility Model Content

[0005] The utility model aims to provide an automatic box opening device to solve the problem that the box opening equipment in the prior art cannot clamp the cigarette boxes whose sealing tapes are on the sides and at different heights.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an automatic box opening device, comprising a frame and a conveying mechanism, wherein the conveying mechanism is assembled on the frame and used to convey the cigarette box to be opened; further comprising a sensing unit, a cutting assembly and a driving unit, wherein the sensing unit, the cutting assembly and the driving unit are all arranged on the frame, the sensing unit is electrically connected to the driving unit, the driving unit is transmission-connected to the cutting assembly, the cutting assembly and the driving unit each have two groups, the two groups of the cutting assemblies correspond to the two groups of the driving units one-to-one, the two groups of the cutting assemblies are arranged at intervals along the conveying direction of the conveying mechanism, and the two groups of the cutting assemblies have a height difference so as to be used for cutting cigarette boxes with sealing tapes of different heights;

[0007] The sensing unit is used to detect the height of the cigarette box and transmit an action signal to the two groups of the driving units. The driving units are used to drive the cutting assembly to approach the conveying mechanism in a horizontal direction to cut the sealing tape or to move away from the conveying mechanism.

[0008] Preferably, the cutting assembly comprises a tool holder and a cutter fixedly mounted on the tool holder, the tool holder is rotatably mounted on the frame around a vertical axis, and the driving unit is transmission-connected to the tool holder to drive the tool holder to rotate.

[0009] Preferably, the driving unit includes an electromagnetic opener and a return spring, the electromagnetic opener is fixedly mounted on the frame, the return spring is connected between the tool holder and the frame, the return spring is used to provide an elastic force to the tool holder to approach the conveying mechanism, the electromagnetic opener is electrically connected to the induction unit, and the electromagnetic opener is used to electromagnetically adsorb the tool holder away from the conveying mechanism when powered on.

[0010] Preferably, the frame includes a column and an assembly seat fixedly mounted on the column, the assembly seat and the tool holder are rotatably assembled via a rotating shaft, the electromagnetic opener and closer is fixedly mounted on the assembly seat, and the reset spring is connected between the assembly seat and the tool holder.

[0011] Preferably, the sensing unit comprises electronic sensors, which are arranged in pairs on both sides of the conveying mechanism, and the height of the electronic sensors is higher than that of the soft-pack cigarette box and lower than that of the hard-pack cigarette box.

[0012] Preferably, the sensing unit comprises two pairs of infrared sensors, the two pairs of infrared sensors have a height difference, one of the two pairs of infrared sensors is lower than the height of the soft-pack cigarette box, and the other is higher than the height of the soft-pack cigarette box and lower than the height of the hard-pack cigarette box.

[0013] Compared with the prior art, the automatic box opening device in the embodiment of the utility model has the following beneficial effects: the sensing unit can detect the height of the cigarette box entering the conveying mechanism, and transmit the height signal to the driving unit. According to the height signal, the driving unit can drive the cutting component to approach or move away from the conveying mechanism in the horizontal direction, that is, adjust the horizontal distance between the cutting component and the sealing tape located on the side of the cigarette box. Since the two groups of cutting components have a height difference, the cigarette boxes with sealing tapes of different heights on the side can be accurately cut by adjusting different cutting components to approach or move away from the conveying mechanism; since the cutting component can move in the horizontal direction, the corrugated paper of the cigarette box will not be damaged when the cutting component is away from the conveying belt, which is convenient for recycling the cigarette boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the automatic box opening device of the utility model;

[0015] Figure 2 yes Figure 1 An enlarged schematic diagram of point A of the automatic box opening device.

[0016] In the figure, 1, frame, 11, column, 12, assembly seat, 2, conveying mechanism, 3, sensing unit, 4, cutting assembly, 41, knife holder, 42, cutter, 5, driving unit, 51, electromagnetic opener and closer, 52, reset spring. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] A preferred embodiment of the automatic box opening device of the utility model is as follows Figure 1 and Figure 2 As shown, the automatic box opening device includes a frame 1 and a conveying mechanism 2. The frame 1 is the supporting base of the automatic box opening device, and the conveying mechanism 2 is arranged on the frame 1. The conveying mechanism 2 is used to convey the cigarette box to be opened. In this embodiment, the conveying mechanism 2 includes a plurality of spaced conveying rollers.

[0019] The automatic box opening device also includes a sensing unit 3, a cutting assembly 4 and a driving unit 5. The sensing unit 3, the cutting assembly 4 and the driving unit 5 are all arranged on the frame 1. The sensing unit 3 is electrically connected to the driving unit 5, and the driving unit 5 is transmission-connected to the cutting assembly 4. The sensing unit 3 is used to detect the height of the cigarette box and transmit an action signal to the driving unit 5. The driving unit 5 is used to drive the cutting assembly 4 to move to adjust the horizontal position of the cutting assembly 4, so that the cutting assembly 4 cuts the sealing tape located on the side of the cigarette box.

[0020] There are two groups of cutting components 4 and two groups of driving units 5, and the two groups of cutting components 4 correspond to the two groups of driving units 5 one by one, that is, one group of driving units 5 drives one group of cutting components 4 to move, and the movements of the two groups of cutting components 4 are relatively independent. The two groups of cutting components 4 are arranged at intervals along the conveying direction of the conveying mechanism 2, and the two groups of cutting components 4 have a height difference. The heights of the two groups of cutting components 4 correspond to the heights of the sealing tapes on the sides of the hard box cigarette box and the soft box cigarette box, respectively, so as to cut cigarette boxes with sealing tapes of different heights.

[0021] When the conveying mechanism 2 is conveying a cigarette box, the sensing unit 3 detects the height of the cigarette box, thereby determining whether the cigarette box is a hard box or a soft box, and can transmit an action signal to the two groups of driving units 5. According to the height signal of the cigarette box, one of the two groups of driving units 5 drives the corresponding cutting component 4 to approach the conveying mechanism 2 in the horizontal direction for cutting the sealing tape, and the other group of driving units 5 drives the corresponding cutting component 4 to move away from the conveying mechanism 2 in the horizontal direction, so as to avoid cutting the corrugated cardboard box, thereby achieving accurate separation of the sealing tapes of cigarette boxes of different heights.

[0022] The sensing unit 3 of the automatic box opening device can detect the height of the cigarette box entering the conveying mechanism 2, and transmit the height signal to the driving unit 5. According to the height signal, the driving unit 5 can drive the cutting component 4 to approach or move away from the conveying mechanism 2 in the horizontal direction, that is, adjust the horizontal distance between the cutting component 4 and the sealing tape located on the side of the cigarette box. Since the two groups of cutting components 4 have a height difference, by adjusting different cutting components 4 to approach or move away from the conveying mechanism 2, the cigarette boxes with sealing tapes of different heights on the side can be accurately cut; since the cutting component 4 can move in the horizontal direction, the cutting component 4 will not damage the corrugated paper of the cigarette box when it is away from the conveyor belt, which is convenient for recycling the cigarette boxes.

[0023] Preferably, the cutting assembly 4 includes a tool holder 41 and a cutter 42 fixedly mounted on the tool holder 41 . The tool holder 41 is rotatably mounted on the frame 1 around a vertical axis. The driving unit 5 is in transmission connection with the tool holder 41 to drive the tool holder 41 to rotate.

[0024] The knife holder 41 is assembled on the frame 1 by rotating around the vertical axis. The driving unit 5 drives the knife holder 41 to rotate to change the position of the cutter 42 and adjust the distance between the cutter 42 and the conveying mechanism 2. During the movement of the cutting assembly 4, the blade will not move relative to the knife holder 41, thereby ensuring the stability of the blade. The knife holder 41 is assembled with the frame 1 in a rotating manner, which simplifies the movement of the cutting assembly 4. The rotating manner also helps to control the position of the cutter 42.

[0025] Preferably, the driving unit 5 includes an electromagnetic opener and closer 51 and a return spring 52. The electromagnetic opener and closer 51 is fixedly mounted on the frame 1. The return spring 52 is connected between the tool holder 41 and the frame 1. The return spring 52 is used to provide an elastic force to the tool holder 41 to approach the conveying mechanism 2. The electromagnetic opener and closer 51 is electrically connected to the induction unit 3. The electromagnetic opener and closer 51 is used to electromagnetically attract the tool holder 41 away from the conveying mechanism 2 when power is turned on.

[0026] When the electromagnetic opener and closer 51 is powered on, it generates magnetism, and can attract the knife holder 41 through magnetic force, so that the knife holder 41 moves closer to the electromagnetic opener and closer 51 located on the frame 1, thereby making the knife holder 41 away from the conveying mechanism 2; when the electromagnetic opener and closer 51 is powered off, it loses its magnetism, and the reset spring 52 pushes the knife holder 41 away from the frame 1 and closer to the conveying mechanism 2 through elastic force, thereby cutting the cigarette box. The driving unit 5 is formed by the electromagnetic opener and closer 51 and the reset spring 52. The electromagnetic opener and closer 51 is sensitive and efficient, and can accurately and quickly control the position of the knife holder 41 and the blade, and cooperates with the reset spring 52 to realize the automatic pop-up and retraction function of the cutting assembly 4.

[0027] Preferably, the frame 1 includes a column 11 and an assembly seat 12 fixedly mounted on the column 11, the assembly seat 12 and the tool holder 41 are rotationally assembled via a rotating shaft, the electromagnetic opener 51 is fixedly mounted on the assembly seat 12, and the return spring 52 is connected between the assembly seat 12 and the tool holder 41.

[0028] The frame 1 is formed by a column 11 and an assembly seat 12. In the present embodiment, the assembly seat 12 is a U-shaped structure. The column 11 can provide an assembly height for the cutting assembly 4 and the driving unit 5, which matches the height of the sealing tape on the cigarette box. The assembly seat 12 provides an assembly station for the electromagnetic opener 51 and the tool holder 41.

[0029] Preferably, the sensing unit 3 comprises electronic sensors, which are arranged in pairs on both sides of the conveying mechanism 2, and the height of the electronic sensors is higher than that of the soft-pack cigarette box and lower than that of the hard-pack cigarette box.

[0030] The sensing unit 3 is composed of a pair of electronic sensors, one of which is used to send signals and the other is used to receive signals. Since the height of the electronic sensor is higher than that of the soft-pack cigarette box and lower than that of the hard-pack cigarette box, when the cigarette box passes through the sensing unit 3, if the signal sent by the electronic sensor is blocked, it indicates that the cigarette box is a hard-pack cigarette box; if the signal sent by the electronic sensor is received by the other electronic sensor, it indicates that the cigarette box is a soft-pack cigarette box, thereby determining the type of the cigarette box and controlling the corresponding electromagnetic opener 51 to operate.

[0031] Preferably, the sensing unit 3 includes two pairs of infrared sensors (not shown in the figure), and the two pairs of infrared sensors have a height difference. The height of one of the two pairs of infrared sensors is lower than the height of the soft-pack cigarette box, and the height of the other is higher than the height of the soft-pack cigarette box and lower than the height of the hard-pack cigarette box.

[0032] Two pairs of infrared sensors detect the height of the cigarette box at the same time. Since the two pairs of infrared sensors have a height difference, when the signals of the two pairs of infrared sensors are blocked, it indicates that the cigarette box is a hard box. When only one set of signals of the two pairs of infrared sensors is blocked, it indicates that the cigarette box is a soft box. In this way, the type of the cigarette box can be determined and the corresponding electromagnetic opener 51 can be controlled to operate.

[0033] In summary, the embodiment of the utility model provides an automatic box opening device, whose sensing unit can detect the height of the cigarette box entering the conveying mechanism and transmit the height signal to the driving unit. According to the height signal, the driving unit can drive the cutting component to approach or move away from the conveying mechanism in the horizontal direction, that is, adjust the horizontal distance between the cutting component and the sealing tape located on the side of the cigarette box. Since the two groups of cutting components have a height difference, the cigarette boxes with sealing tapes of different heights on the side can be accurately cut by adjusting different cutting components to approach or move away from the conveying mechanism; since the cutting component can move in the horizontal direction, the corrugated paper of the cigarette box will not be damaged when the cutting component is away from the conveyor belt, which is convenient for recycling the cigarette boxes.

[0034] 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 substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An automatic box opening device, characterized in that: The invention comprises a frame (1) and a conveying mechanism (2), wherein the conveying mechanism (2) is assembled on the frame (1), and the conveying mechanism (2) is used to convey cigarette boxes to be opened; and further comprises a sensing unit (3), a cutting assembly (4) and a driving unit (5), wherein the sensing unit (3), the cutting assembly (4) and the driving unit (5) are all arranged on the frame (1), the sensing unit (3) is electrically connected to the driving unit (5), and the driving unit (5) is transmission-connected to the cutting assembly (4), and each of the cutting assembly (4) and the driving unit (5) has two groups, and the two groups of the cutting assembly (4) correspond to the two groups of the driving units (5) on a one-to-one basis. The two groups of the cutting assembly (4) are arranged at intervals along the conveying direction of the conveying mechanism (2), and the two groups of the cutting assembly (4) have a height difference so as to be used for cutting cigarette boxes with sealing tapes of different heights; The sensing unit (3) is used to detect the height of the cigarette box and transmit an action signal to the two groups of driving units (5), and the driving units (5) are used to drive the cutting assembly (4) to approach the conveying mechanism (2) in a horizontal direction to cut the sealing tape or to move away from the conveying mechanism (2).

2. The automatic box opening device according to claim 1, characterized in that: The cutting assembly (4) comprises a knife frame (41) and a cutter (42) fixedly mounted on the knife frame (41); the knife frame (41) is rotatably mounted on the machine frame (1) around a vertical axis; and the driving unit (5) is in transmission connection with the knife frame (41) to drive the knife frame (41) to rotate.

3. The automatic box opening device according to claim 2, characterized in that: The driving unit (5) includes an electromagnetic opener (51) and a return spring (52), wherein the electromagnetic opener (51) is fixedly mounted on the frame (1), and the return spring (52) is connected between the tool holder (41) and the frame (1), and the return spring (52) is used to provide an elastic force to the tool holder (41) to move closer to the conveying mechanism (2). The electromagnetic opener (51) is electrically connected to the induction unit (3), and the electromagnetic opener (51) is used to electromagnetically attract the tool holder (41) away from the conveying mechanism (2) when powered on.

4. The automatic box opening device according to claim 3, characterized in that: The frame (1) comprises a column (11) and an assembly seat (12) fixedly assembled on the column (11); the assembly seat (12) and the tool holder (41) are rotatably assembled via a rotating shaft; the electromagnetic opener (51) is fixedly assembled on the assembly seat (12); and the return spring (52) is connected between the assembly seat (12) and the tool holder (41).

5. The automatic box opening device according to any one of claims 1 to 4, characterized in that: The sensing unit (3) comprises electronic sensors, which are arranged in pairs on both sides of the conveying mechanism (2). The height of the electronic sensors is higher than that of the soft-pack cigarette box and lower than that of the hard-pack cigarette box.

6. The automatic box opening device according to any one of claims 1 to 4, characterized in that: The sensing unit (3) comprises two pairs of infrared sensors, the two pairs of infrared sensors having a height difference, wherein the height of one of the two pairs of infrared sensors is lower than the height of the soft-pack cigarette box, and the height of the other is higher than the height of the soft-pack cigarette box and lower than the height of the hard-pack cigarette box.

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