Leftover material collecting device for packaging carton production

Abstract

The invention relates to the technical field of solid waste treatment, in particular to a leftover material collecting device for packaging carton production, which comprises a collecting box with an opening at the upper end, and further comprises a paperboard sucking mechanism for sucking aluminum foil composite paperboards on a conveyor; the horizontal moving mechanism is arranged on the bracket; and the aluminum foil sucking and holding mechanism is arranged on the support and located below the paperboard sucking and holding mechanism. By arranging the paperboard sucking and holding mechanism, the horizontal moving mechanism and the aluminum foil sucking and holding mechanism, leftover materials are sucked and fixed through the paperboard sucking and holding mechanism, then the paperboard sucking and holding mechanism is driven by the horizontal moving mechanism to move horizontally, and therefore the leftover materials are driven to move horizontally. In the horizontal moving process of the leftover material, the aluminum foil on the bottom face of the leftover material is stripped off through the aluminum foil suction mechanism, so that the aluminum foil is separated from the paperboard, the aluminum foil and the paperboard are crushed separately in the follow-up process, and the aluminum foil and the paperboard are prevented from being mixed together.

Description

Technical Field

[0001] The invention relates to the technical field of solid waste treatment, in particular to a scrap material collecting device for producing packaging paper boxes. Background Art

[0002] Packaging cartons are a common packaging container in daily life, widely used in the protection, display and sale of goods. When packaging sensitive items such as food and medicine, packaging cartons made of aluminum foil composite paperboard are needed. Aluminum foil composite paperboard is a structural composite material composed of aluminum foil and paperboard. It has good mechanical strength and flatness, and is not easy to deform. At the same time, it has excellent oxygen isolation, moisture resistance, water vapor evaporation resistance, high temperature resistance and other properties, so it can ensure the safety of sensitive items such as food and medicine.

[0003] In order to meet different packaging design requirements, aluminum foil composite paperboard needs to be cut, which will produce many long strips of scraps. In order to meet the requirements of environmental protection and sustainable development, these long strips of scraps need to be collected for subsequent recycling.

[0004] Existing scrap collection devices usually have a crushing structure to crush the collected scraps to reduce the scrap space occupation. However, aluminum foil composite paperboard is composed of an aluminum foil layer and paperboard. If the collected scraps are directly crushed, the aluminum foil and paperboard cannot be separated, which is not conducive to subsequent resource recycling. To this end, we propose a scrap collection device for packaging paper box production to effectively solve the above drawbacks. Summary of the invention

[0005] The object of the present invention is to provide a scrap collection device for packaging paper box production, which is used to solve the problems raised in the above-mentioned background technology.

[0006] The present invention is realized by the following technical scheme: a scrap material collection device for packaging paper box production, comprising a collection box with an open upper end, and also comprising:

[0007] A bracket, the bracket being mounted on the top of the collection box;

[0008] A paperboard suction and holding mechanism, which is used to suck the aluminum foil composite paperboard on the conveyor;

[0009] A horizontal moving mechanism, which is arranged on the bracket and is used to drive the paperboard holding mechanism to move horizontally;

[0010] An aluminum foil holding mechanism, which is arranged on the bracket and located below the paperboard holding mechanism, so as to peel off the aluminum foil on the bottom surface of the aluminum foil composite paperboard in a horizontal moving state;

[0011] The aluminum foil crushing bin and the cardboard crushing bin are arranged in the collection box at intervals along the moving direction of the aluminum foil composite cardboard.

[0012] Optionally, the horizontal moving mechanism includes a screw rod arranged in the horizontal direction and rotatably connected to the bracket through a bearing and a shaft seat, and a servo motor connected to the screw rod is installed on the bracket;

[0013] A moving block is threadedly connected to the screw rod, the lower end of the moving block is connected to the paperboard suction and holding mechanism, and a guide rod which moves through the moving block in a horizontal direction is fixedly connected to the bracket.

[0014] Optionally, a rotating cylinder is arranged below the cardboard holding mechanism, and the axis of the rotating cylinder is perpendicular to the moving direction of the aluminum foil composite cardboard; a first hollow shaft and a second hollow shaft are fixedly connected to the front and rear ends of the rotating cylinder respectively, and the first hollow shaft and the second hollow shaft are rotatably connected to the bracket through the cooperation of bearings and shaft seats, and a driving motor transmission-connected to the second hollow shaft is installed on the bracket.

[0015] Optionally, the aluminum foil holding mechanism includes a main pipe arranged in the rotating cylinder, a rotating joint connected to the external negative pressure device through a pipeline is fixedly installed on the bracket, and the rotating part of the rotating joint is fixed to the second hollow shaft and connected to the main pipe;

[0016] Three aluminum foil holding components are arranged on the outer surface of the rotating cylinder at equal intervals along the circumferential direction, and branch pipes are connected between each aluminum foil holding component and the main pipe.

[0017] Optionally, the cardboard holding mechanism includes a movable plate connected to a horizontal moving mechanism, and three cardboard holding assemblies are arranged on the bottom surface of the movable plate at intervals in the horizontal direction. Each cardboard holding assembly is connected to an external negative pressure device through a pipeline, and the spacing between two adjacent cardboard holding assemblies is consistent with the circumferential path length of two adjacent aluminum foil holding assemblies.

[0018] Optionally, the outer surface of the rotating cylinder is provided with mounting grooves corresponding to each aluminum foil suction assembly;

[0019] The aluminum foil suction assembly comprises a plurality of first suction cups which are arranged in the installation groove at intervals along the axial direction of the rotating cylinder, and a connecting pipe is connected between each first suction cup and the corresponding branch pipe.

[0020] Optionally, an electromagnetic valve is provided on the branch pipe, and a control mechanism for controlling the opening and closing of each electromagnetic valve is provided on the outer surface of the first hollow shaft. A circuit rotary connector electrically connected to an external power supply through a line is fixedly mounted on the bracket, and the rotating part of the circuit rotary connector is fixed to the first hollow shaft and electrically connected to the control mechanism.

[0021] Optionally, the control mechanism includes three fixed shells fixed to the outer surface of the first hollow shaft at equal intervals along the circumferential direction, a micro switch electrically connected to the corresponding solenoid valve is installed in each fixed shell, and each micro switch is electrically connected to the circuit rotary connector;

[0022] A piston is slidably disposed in each fixed shell, and a movable rod movably passing through the fixed shell is fixedly connected to each piston, and an elastic member for extending the movable rod out of the fixed shell is disposed in each fixed shell;

[0023] An arc plate is fixedly mounted on the bracket, the central axis of the arc plate coincides with the central axis of the first hollow shaft, and the central angle of the arc plate is greater than 120° and less than 180°, and is used to press the movable rod into the fixed shell so that the piston contacts the micro switch.

[0024] Optionally, the elastic member includes a sliding rod fixed in the fixed shell and parallel to the movable rod, the sliding rod movably passes through the piston, and a spring is sleeved on the sliding rod for extending the movable rod out of the fixed shell;

[0025] An inclined surface structure is arranged at one end of the movable rod away from the fixed shell, and an inclined plate adapted to the inclined surface structure is integrally formed on the arc plate.

[0026] Optionally, a sealing ring adapted to the movable rod is fixed on each fixed shell, a gap between each sealing ring and the corresponding piston forms an air chamber, and an air guide pipe communicating with the air chamber is fixedly connected between each fixed shell and the rotating cylinder;

[0027] A group of air holes is provided in each installation groove, and each group of air holes is connected to a corresponding air guide pipe; a hook plate located above the aluminum foil crushing bin is fixed on the bracket, and the upper end of the hook plate is movably fitted with the rotating cylinder;

[0028] When the piston in contact with the micro switch moves outward under the action of the elastic member, the gas in the corresponding air chamber is blown toward the aluminum foil wound on the rotating cylinder through the air guide pipe and the air hole, and the hook plate hooks the blown aluminum foil.

[0029] Compared with the prior art, the present invention provides a scrap collection device for packaging carton production, which has the following beneficial effects:

[0030] 1. The present invention is provided with a cardboard holding mechanism, a horizontal moving mechanism and an aluminum foil holding mechanism. After the long strip of scraps is conveyed by the conveyor, the scraps are first adsorbed and fixed by the cardboard holding mechanism, and then the cardboard holding mechanism is driven to move horizontally by the horizontal moving mechanism, thereby driving the scraps to move horizontally. During the horizontal movement of the scraps, the aluminum foil on the bottom of the scraps is peeled off by the aluminum foil holding mechanism, thereby separating the aluminum foil from the cardboard, so as to facilitate the subsequent crushing of the aluminum foil and the cardboard, and avoid mixing the aluminum foil and the cardboard.

[0031] 2. The present invention provides a rotating cylinder, a control mechanism and an arc plate. During the rotation of the rotating cylinder, when the arc plate contacts the movable rod in the control mechanism, the piston can be driven to contact the micro switch, thereby realizing the opening and closing of each solenoid valve in turn.

[0032] Furthermore, since there are three aluminum foil suction components, the central angle of the arc plate is greater than 120° and less than 180°. Therefore, after the first aluminum foil suction component sucks the aluminum foil on the bottom of the scrap, the aluminum foil suction component needs to rotate 120°-180° with the rotating cylinder to peel off part of the aluminum foil and then release the peeled aluminum foil. Before the aluminum foil suction component releases the peeled aluminum foil, the next aluminum foil suction component has already sucked the aluminum foil on the bottom of the scrap, so that the aluminum foil can always be affected by the suction force, and then all the aluminum foil on the bottom of the scrap can be peeled off.

[0033] This design ensures that the adsorption force is always close to the peeling point of the aluminum foil, so that the aluminum foil can be completely peeled off, avoiding the problem that the adsorption force is too far away from the peeling point, causing the aluminum foil to break from the peeling point, and the aluminum foil on the bottom of the scrap cannot be completely peeled off.

[0034] 3. The present invention provides a piston, an air chamber, an air duct, an air hole and a hook plate. When the aluminum foil holding assembly releases the aluminum foil, the gas in the air chamber is pushed by the piston to blow toward the aluminum foil through the air duct and the air hole in sequence, thereby slightly blowing up the aluminum foil. Then, the blown-up aluminum foil is hooked by the hook plate, so that the peeled aluminum foil can smoothly fall into the aluminum foil crushing bin, thereby preventing the aluminum foil that does not rebound after deformation from always being wound around the rotating drum and unable to enter the aluminum foil crushing bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the structure inside the rotating drum of the present invention;

[0037] Figure 3 It is a front view of the bracket of the present invention;

[0038] Figure 4 is a rear view of the bracket of the present invention;

[0039] Figure 5 It is a schematic structural diagram of the first hollow shaft of the present invention;

[0040] Figure 6 for Figure 5 A local enlarged schematic diagram of the middle A;

[0041] Figure 7 It is a circuit connection schematic diagram of the present invention.

[0042] In the figure: 1. Collection box; 2. Bracket; 3. Cardboard holding mechanism; 301. Moving plate; 302. Cardboard holding assembly; 4. Horizontal moving mechanism; 401. Screw; 402. Servo motor; 403. Moving block; 404. Guide rod; 5. Aluminum foil holding mechanism; 501. Main pipe; 502. Rotary joint; 503. Aluminum foil holding assembly; 5031. First suction cup; 5032. Connecting pipe; 504. Branch pipe; 505. Solenoid valve; 6. Aluminum foil crushing chamber; 7. Cardboard crushing bin; 8. rotating cylinder; 9. first hollow shaft; 10. second hollow shaft; 11. driving motor; 12. mounting slot; 13. control mechanism; 1301. fixed shell; 1302. micro switch; 1303. piston; 1304. movable rod; 1305. elastic member; 13051. sliding rod; 13052. spring; 14. circuit rotary connector; 15. arc plate; 16. inclined plate; 17. air chamber; 18. air guide tube; 19. air hole; 20. hook plate. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figures 1 to 7 A scrap material collection device for packaging paper box production includes a collection box 1 with an open upper end, a bracket 2, a cardboard suction holding mechanism 3, a horizontal moving mechanism 4, an aluminum foil suction holding mechanism 5, an aluminum foil crushing bin 6 and a cardboard crushing bin 7.

[0045] In this embodiment, the support 2 is set on the top of the collection box 1 to provide support for other components in the device. The paperboard suction mechanism 3 is used to absorb the aluminum foil composite paperboard on the conveyor, specifically for absorbing the long strip of scraps. The horizontal moving mechanism 4 is arranged on the support 2, and is used to drive the paperboard suction mechanism 3 to move horizontally, thereby driving the long strip of scraps to move horizontally, and after the aluminum foil at the bottom of the scraps is peeled off, it can drive the paperboard to continue to move horizontally. The aluminum foil suction mechanism 5 is arranged on the support 2 and is located below the paperboard suction mechanism 3 to peel off the aluminum foil on the bottom of the aluminum foil composite paperboard in the horizontal moving state. The aluminum foil crushing bin 6 and the paperboard crushing bin 7 are arranged in the collection box 1 at intervals along the moving direction of the aluminum foil composite paperboard, and the aluminum foil crushing bin 6 and the paperboard crushing bin 7 are both provided with crushing mechanisms to crush the separated aluminum foil and paperboard separately, so that the aluminum foil and paperboard are not easily mixed together, which is convenient for subsequent recycling.

[0046] The horizontal moving mechanism 4 is specifically introduced as follows:

[0047] The horizontal moving mechanism 4 includes a screw rod 401 arranged in the horizontal direction and rotatably connected to the bracket 2 through a bearing and a shaft seat. A servo motor 402 is installed on the bracket 2 and is connected to the screw rod 401. When the servo motor 402 is working, it can drive the screw rod 401 to rotate forward or reverse. A moving block 403 is threadedly connected to the screw rod 401. The lower end of the moving block 403 is connected to the cardboard holding mechanism 3. In this embodiment, the lower end of the moving block 403 is fixedly connected to the moving plate 301. A guide rod 404 is fixedly connected to the bracket 2 and moves through the moving block 403 in the horizontal direction, so that the moving block 403 can only move horizontally and cannot rotate along the screw rod 401.

[0048] With the above design, when the servo motor 402 is working, it can drive the screw rod 401 to rotate, so that the moving block 403 moves along the length direction of the guide rod 404, and then drives the moving plate 301 to move horizontally.

[0049] In the process of designing the aluminum foil holding mechanism 5, it was found that the prior art generally directly fixes one end of the aluminum foil, and as the scrap moves, the aluminum foil is torn off from the bottom surface of the scrap. However, it was found during use that since the fixed point position of the aluminum foil end does not change, when the scrap moves, the fixed point will be farther and farther away from the peeling point between the aluminum foil and the scrap, and the aluminum foil is prone to break at the peeling point, so that the aluminum foil cannot be completely torn off. In order to solve the shortcomings of the prior art, the aluminum foil holding mechanism 5 is specially designed, and the specific design is as follows:

[0050] A rotating cylinder 8 is arranged below the paperboard holding mechanism 3, and the axis of the rotating cylinder 8 is perpendicular to the moving direction of the aluminum foil composite paperboard; a first hollow shaft 9 and a second hollow shaft 10 are fixedly connected to the front and rear ends of the rotating cylinder 8, respectively, and the first hollow shaft 9 and the second hollow shaft 10 are both rotatably connected to the bracket 2 through the cooperation of the bearing and the shaft seat, and a driving motor 11 connected to the second hollow shaft 9 is installed on the bracket 2. When the driving motor 11 is working, it can drive the second hollow shaft 9 to rotate, thereby driving the rotating cylinder 8 to rotate. In this embodiment, it should be noted that the linear speed of the outer surface of the rotating cylinder 8 needs to be the same as the moving speed of the aluminum foil composite paperboard to ensure that the aluminum foil composite paperboard can pass smoothly from the top of the rotating cylinder 8. The rotation speed of the servo motor 402 and the driving motor 11 can be controlled by program to achieve the same linear speed of the rotating cylinder 8 as the moving speed of the moving block 403. This is a prior art and will not be repeated here.

[0051] In this embodiment, the aluminum foil holding mechanism 5 includes a main pipe 501 arranged in the rotating cylinder 8, and a rotating joint 502 connected to the external negative pressure device through a pipeline is fixedly installed on the bracket 2, for example, the rotating joint 502 can be connected to the vacuum pump through a hose. The rotating part of the rotating joint 502 is fixed to the second hollow shaft 10 and is connected to the main pipe 501 to achieve the connection between the main pipe 501 and the external negative pressure device. Three aluminum foil holding components 503 are arranged at equal intervals along the circumferential direction on the outer surface of the rotating cylinder 8, and a branch pipe 504 is connected between each aluminum foil holding component 503 and the main pipe 501. When the rotating cylinder 8 rotates, each aluminum foil holding component 503 can be driven to rotate synchronously with the rotating cylinder 8; in this process, the scraps move to the right under the action of the horizontal moving mechanism 4, so that the aluminum foil on the bottom of the scraps can be peeled off by the aluminum foil holding component 503.

[0052] It is worth mentioning that the paperboard suction mechanism 3 includes a moving plate 301 connected to a horizontal moving mechanism 4, and the moving plate 301 can be driven to move horizontally by the horizontal moving mechanism 4. Three paperboard suction assemblies 302 are arranged at intervals along the horizontal direction on the bottom surface of the moving plate 301, which are used to absorb and fix the long strips of scraps. Each paperboard suction assembly 302 is connected to the external negative pressure device through a pipeline. In this embodiment, the paperboard suction assembly 302 is composed of a plurality of second suction cups, and the second suction cups can be connected to the vacuum pump through a hose.

[0053] In this embodiment, the distance between two adjacent paperboard sucking components 302 is consistent with the circumferential path length of two adjacent aluminum foil sucking components 503, and the moving speed of the paperboard sucking component 302 is the same as the linear speed of the aluminum foil sucking component 503. When the aluminum foil sucking component 503 rotates to just contact the aluminum foil, the aluminum foil sucking component 503 is aligned with the corresponding paperboard sucking component 302. In this embodiment, the speed of the servo motor 402 and the driving motor 11 can be adjusted to make the moving speed of the paperboard sucking component 302 the same as the linear speed of the aluminum foil sucking component 503.

[0054] With the above design, when the external negative pressure device is working, negative pressure can be generated, so that the long strips of scraps transported from the conveyor can be adsorbed through the cardboard suction assembly 302. When the horizontal moving mechanism 4 drives the moving plate 301 to move horizontally, it can drive the long strips of scraps to move horizontally. During the movement, when the first cardboard suction assembly 302 is aligned with the aluminum foil suction assembly 503, the aluminum foil suction assembly 503 adsorbs the aluminum foil on the bottom of the scraps, and the rotating cylinder 8 rotates at the same time, so that the aluminum foil is torn off. In the process of tearing off all the aluminum foil, each cardboard suction assembly 302 and the corresponding aluminum foil suction assembly 503 always maintain an upper and lower alignment state, so that the scraps can be evenly stressed and not easily tilted, and the aluminum foil can be torn off smoothly.

[0055] It should be noted that the outer surface of the rotating drum 8 is provided with mounting grooves 12 corresponding to the aluminum foil suction components 503; the aluminum foil suction components 503 include a plurality of first suction cups 5031 arranged in the mounting grooves 12 at intervals along the axial direction of the rotating drum 8, and a connecting pipe 5032 is connected between each first suction cup 5031 and the corresponding branch pipe 504. When the rotating drum 8 rotates, since the first suction cups 5031 are arranged in the mounting grooves 12, the sucked aluminum foil can be wound around the rotating drum 8, thereby facilitating the peeling of the aluminum foil.

[0056] Specifically, the branch pipe 504 is provided with a solenoid valve 505, and the outer surface of the first hollow shaft 9 is provided with a control mechanism 13 for controlling the opening and closing of each solenoid valve 505, so that each solenoid valve 505 can be opened and closed in turn, and then each aluminum foil suction component 503 can adsorb the aluminum foil in turn, so that the adsorption force is always close to the peeling point of the aluminum foil, so that the aluminum foil can be completely peeled off, avoiding the adsorption force being too far away from the peeling point, causing the aluminum foil to break from the peeling point, resulting in the problem that the aluminum foil on the bottom of the scrap cannot be completely peeled off.

[0057] A circuit rotating connector 14 electrically connected to an external power source through a line is fixedly mounted on the bracket 2. The rotating portion of the circuit rotating connector 14 is fixed to the first hollow shaft 10 and electrically connected to the control mechanism 13 to achieve the transmission of electrical energy.

[0058] In this embodiment, the control mechanism 13 includes three fixed shells 1301 fixed at equal intervals along the circumferential direction on the outer surface of the first hollow shaft 9, and a micro switch 1302 electrically connected to the corresponding electromagnetic valve 505 is installed in each fixed shell 1301, and each micro switch 1302 is electrically connected to the circuit rotary connector 14. When the micro switch 1302 is touched, the corresponding electromagnetic valve 505 is opened. A piston 1303 slides in each fixed shell 1301, and a movable rod 1304 that movably passes through the fixed shell 1301 is fixedly connected to each piston 1303, and an elastic member 1305 for extending the movable rod 1304 to the outside of the fixed shell 1301 is provided in each fixed shell 1301. An arc plate 15 is fixedly mounted on the bracket 2, the central axis of the arc plate 15 coincides with the central axis of the first hollow shaft 9, and the central angle corresponding to the arc plate 15 is greater than 120° and less than 180°, and is used to press the movable rod 1304 into the fixed shell 1301 so that the piston 1303 contacts the micro switch 1302.

[0059] With the above design, when the movable rod 1304 contacts the arc plate 15, it drives the movable rod 1304 to move into the fixed shell 1301, thereby driving the piston 1303 to contact the micro switch 1302. At this time, the solenoid valve 505 electrically connected to the micro switch 1302 works, so that the corresponding aluminum foil holding component 503 absorbs the aluminum foil on the bottom of the scrap.

[0060] Since there are three aluminum foil holding components 503, the central angle of the arc plate 15 is greater than 120° and less than 180°. Therefore, when the first aluminum foil holding component 503 rotates 120°-180° with the rotating cylinder 8, the arc plate 15 is no longer in contact with the movable rod 1304. At this time, under the action of the elastic member 1305, the movable rod 1304 moves outward, so that the piston 1303 is no longer in contact with the micro switch 1302, and then the corresponding electromagnetic valve 505 is closed, and the aluminum foil holding component 503 releases the aluminum foil. Before the aluminum foil holding component 503 releases the peeled aluminum foil, the next movable rod 1304 rotates to contact the arc plate 15, so that the next aluminum foil holding component 503 absorbs the aluminum foil on the bottom of the scrap, so that the aluminum foil can always be affected by the adsorption force, and then the aluminum foil on the bottom of the scrap can be completely peeled off, and it is not easy to break.

[0061] Furthermore, the elastic member 1305 includes a slide bar 13051 fixed in the fixed shell 1301 and parallel to the movable rod 1304. The slide bar 13051 movably passes through the piston 1303, and the piston 1303 can slide along the length direction of the slide bar 13051. A spring 13052 is sleeved on the slide bar 13051 for extending the movable rod 1304 outside the fixed shell 1301. In a normal state, the spring 13052 applies elastic force so that the movable rod 1304 is always in an extended state. Preferably, the movable rod 1304 is provided with an inclined surface structure at one end away from the fixed shell 1301, and an inclined plate 16 adapted to the inclined surface structure is integrally formed on the arc plate 15. Before the movable rod 1304 contacts the arc plate 15 , the movable rod 1304 is gradually pressed into the fixed shell 1301 through the cooperation of the inclined surface structure and the inclined plate 16 , thereby ensuring that the movable rod 1304 can contact the arc plate 15 smoothly.

[0062] During the research and development process, it was found that since the aluminum foil is soft and easy to deform, and does not rebound after deformation, after tearing off the aluminum foil by the winding adsorption method of the present invention, the aluminum foil will bend and deform and be wound on the rotating drum 8. It is necessary to manually remove the aluminum foil wound on the rotating drum 8 and send it to the aluminum foil crushing bin 6, which is time-consuming and laborious. To solve this problem, the special design is as follows:

[0063] A sealing ring adapted to the movable rod 1304 is fixed on each fixed shell 1301, which is used to seal the junction between the movable rod 1304 and the fixed shell 1301. The gap between each sealing ring and the corresponding piston 1303 forms an air chamber 17. When the piston 1303 moves toward the micro switch 1302, the outside air can be sucked into the air chamber 17; when the piston 1303 moves away from the micro switch 1302, the air in the air chamber 17 can be discharged. In order to prevent the space between the piston 1303 and the micro switch 1302 from having an excessively high pressure when the piston 1303 moves, a through hole that is conductive to the space can be opened on the fixed shell 1301, so that the space is consistent with the outside pressure.

[0064] An air duct 18 communicating with the air chamber 17 is fixedly connected between each fixed shell 1301 and the rotating cylinder 8; a group of air holes 19 is provided in each mounting groove 12, each group of air holes 19 communicates with the corresponding air duct 18, and the outside air can enter the air chamber 17 through the air holes 19 and the air duct 18; the air in the air chamber 17 can be discharged through the air duct 18 and the air holes 19. A hook plate 20 located above the aluminum foil crushing bin 6 is fixed on the bracket 2, and the upper end of the hook plate 20 is movably fitted with the rotating cylinder 8, and can hook down the aluminum foil wound on the rotating cylinder 8.

[0065] With the above design, when the piston 1303 in contact with the microswitch 1302 moves outward under the action of the elastic member 1305, the gas in the corresponding air chamber 17 is blown toward the aluminum foil wound on the rotating cylinder 8 via the air duct 18 and the air hole 19, thereby slightly blowing up the aluminum foil there. At the same time, the hook plate 20 can hook the blown aluminum foil to prevent the aluminum foil from continuing to be wound on the rotating cylinder 8, thereby allowing the peeled aluminum foil to fall smoothly into the aluminum foil crushing bin 6 without the need for manual operation, saving time and effort.

[0066] The working principle of the present invention is as follows:

[0067] In the initial state, the movable plate 301 is located at the far left. At this time, the conveyor conveys the scraps of the aluminum foil composite paperboard in the form of long strips to the bottom of the movable plate 301, and then the scraps are adsorbed by the paperboard suction component 302. Then the servo motor 402 works to drive the screw rod 401 to rotate, thereby driving the movable plate 301 to move to the right, and then driving the scraps to move to the right.

[0068] In the process of the scrap moving to the right, when the first cardboard suction component 302 is aligned with the aluminum foil suction component 503 up and down, the corresponding movable rod 1304, under the action of the inclined structure and the inclined plate 16, smoothly contacts the arc plate 15, thereby pressing the movable rod 1304 into the fixed shell 1301, and then driving the piston 1303 to contact the micro switch 1302; at this time, the solenoid valve 505 electrically connected to the micro switch 1302 works, so that the first suction cup 5031 absorbs the aluminum foil on the bottom surface of the scrap.

[0069] The rotating drum 8 continues to rotate, thereby driving the first suction cup 5031 to rotate, and then the aluminum foil can be torn off from the bottom surface of the scrap, and the torn aluminum foil is in contact with the rotating drum 8, and is wound and adsorbed on the rotating drum 8. Since the central angle of the arc plate is greater than 120° and less than 180°, when the first suction cup 5031 rotates 120°-180° with the rotating drum 8, the arc plate 15 is no longer in contact with the movable rod 1304. At this time, under the action of the elastic member 1305, the movable rod 1304 moves outward, so that the piston 1303 is no longer in contact with the micro switch 1302, and the corresponding solenoid valve 505 is closed, and the first suction cup 5031 releases the aluminum foil.

[0070] Before the first suction cup 5031 releases the aluminum foil, another movable rod 1304 rotates to contact the arc plate 15, and the same steps are repeated to achieve the adsorption and release operations through another first suction cup 5031, so that the adsorption force is always close to the peeling point of the aluminum foil, so that the aluminum foil on the bottom surface of the scrap can be completely peeled off without being easily broken.

[0071] When the first suction cup 5031 releases the aluminum foil, the piston 1303 moves outward under the action of the elastic member 1305, and the gas in the corresponding air chamber 17 is blown toward the aluminum foil wound on the rotating cylinder 8 via the air duct 18 and the air hole 19, thereby slightly blowing up the aluminum foil at that location. At the same time, the hook plate 20 can hook the blown-up aluminum foil to prevent the aluminum foil from continuing to be wound on the rotating cylinder 8, thereby allowing the peeled aluminum foil to smoothly fall into the aluminum foil crushing bin 6 without the need for manual operation, saving time and effort.

[0072] After the aluminum foil is completely torn off, the cardboard moves to the top of the cardboard crushing bin 7 and falls into the cardboard crushing bin 7 for crushing.

[0073] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scrap collection device for packaging paper box production, comprising a collection box (1) with an open top, characterized in that: Also includes: A bracket (2), wherein the bracket (2) is mounted on the top of the collection box (1); A paperboard suction and holding mechanism (3), wherein the paperboard suction and holding mechanism (3) is used to suck the aluminum foil composite paperboard on the conveyor; A horizontal moving mechanism (4), the horizontal moving mechanism (4) being arranged on the support (2) and used for driving the paperboard holding mechanism (3) to move horizontally; An aluminum foil holding mechanism (5), the aluminum foil holding mechanism (5) being arranged on the support (2) and located below the paperboard holding mechanism (3) so as to peel off the aluminum foil on the bottom surface of the aluminum foil composite paperboard in a horizontally moving state; An aluminum foil crushing bin (6) and a paperboard crushing bin (7) are arranged in the collection box (1) at intervals along the moving direction of the aluminum foil composite paperboard.

2. A scrap material collection device for packaging paper box production according to claim 1, characterized in that: The horizontal moving mechanism (4) comprises a screw rod (401) arranged in the horizontal direction and rotatably connected to the bracket (2) through a bearing and a shaft seat, and a servo motor (402) drivingly connected to the screw rod (401) is installed on the bracket (2); A moving block (403) is threadedly connected to the screw rod (401), the lower end of the moving block (403) is connected to the paperboard holding mechanism (3), and a guide rod (404) is fixedly connected to the bracket (2) and moves through the moving block (403) in a horizontal direction.

3. A scrap material collection device for packaging paper box production according to claim 1, characterized in that: A rotating cylinder (8) is arranged below the paperboard holding mechanism (3), and the axis of the rotating cylinder (8) is perpendicular to the moving direction of the aluminum foil composite paperboard; a first hollow shaft (9) and a second hollow shaft (10) are fixedly connected at the front and rear ends of the rotating cylinder (8), respectively; the first hollow shaft (9) and the second hollow shaft (10) are both rotatably connected to the bracket (2) through the cooperation of a bearing and a shaft seat, and a driving motor (11) drivingly connected to the second hollow shaft (9) is installed on the bracket (2).

4. A scrap material collection device for packaging paper box production according to claim 3, characterized in that: The aluminum foil holding mechanism (5) comprises a main pipe (501) arranged in the rotating cylinder (8), a rotating joint (502) which is conductively connected to an external negative pressure device through a pipeline is fixedly installed on the bracket (2), and the rotating part of the rotating joint (502) is fixed to the second hollow shaft (10) and conductively connected to the main pipe (501); Three aluminum foil suction assemblies (503) are arranged at equal intervals along the circumferential direction on the outer surface of the rotating cylinder (8), and a branch pipe (504) is connected between each aluminum foil suction assemblies (503) and the main pipe (501).

5. A scrap material collection device for packaging paper box production according to claim 4, characterized in that: The paperboard suction mechanism (3) comprises a movable plate (301) connected to a horizontal moving mechanism (4), and three paperboard suction assemblies (302) are arranged at intervals in a horizontal direction on the bottom surface of the movable plate (301), each paperboard suction assembly (302) is conductively connected to an external negative pressure device via a pipeline, and the distance between two adjacent paperboard suction assemblies (302) is consistent with the circumferential path length of two adjacent aluminum foil suction assemblies (503).

6. A scrap material collecting device for packaging paper box production according to claim 4, characterized in that: The outer surface of the rotating cylinder (8) is provided with mounting grooves (12) corresponding to the respective aluminum foil holding components (503); The aluminum foil suction assembly (503) comprises a plurality of first suction cups (5031) arranged in an installation groove (12) at intervals along the axial direction of the rotating cylinder (8), and a connecting pipe (5032) is connected between each first suction cup (5031) and the corresponding branch pipe (504).

7. A scrap material collection device for packaging paper box production according to claim 6, characterized in that: The branch pipe (504) is provided with an electromagnetic valve (505), the outer surface of the first hollow shaft (9) is provided with a control mechanism (13) for controlling the opening and closing of each electromagnetic valve (505), and a circuit rotary connector (14) electrically connected to an external power supply through a line is fixedly installed on the bracket (2), and the rotating part of the circuit rotary connector (14) is fixed to the first hollow shaft (10) and electrically connected to the control mechanism (13).

8. A scrap material collection device for packaging paper box production according to claim 7, characterized in that: The control mechanism (13) comprises three fixed shells (1301) fixed at equal intervals along the circumferential direction on the outer surface of the first hollow shaft (9), each fixed shell (1301) being provided with a micro switch (1302) electrically connected to a corresponding solenoid valve (505), each micro switch (1302) being electrically connected to a circuit rotary connector (14); A piston (1303) slides in each fixed shell (1301), and a movable rod (1304) that movably passes through the fixed shell (1301) is fixedly connected to each piston (1303), and an elastic member (1305) is provided in each fixed shell (1301) for extending the movable rod (1304) outside the fixed shell (1301); An arc plate (15) is fixedly mounted on the bracket (2), wherein the central axis of the arc plate (15) coincides with the central axis of the first hollow shaft (9), and the central angle corresponding to the arc plate (15) is greater than 120° and less than 180°, and is used to press the movable rod (1304) into the fixed shell (1301) so that the piston (1303) contacts the micro switch (1302).

9. A scrap material collection device for packaging paper box production according to claim 8, characterized in that: The elastic member (1305) comprises a sliding rod (13051) fixed in the fixed shell (1301) and parallel to the movable rod (1304); the sliding rod (13051) moves through the piston (1303); and a spring (13052) is sleeved on the sliding rod (13051) for allowing the movable rod (1304) to extend out of the fixed shell (1301); An inclined surface structure is provided at one end of the movable rod (1304) away from the fixed shell (1301), and an inclined plate (16) adapted to the inclined surface structure is integrally formed on the arc plate (15).

10. The scrap material collecting device for packaging paper box production according to claim 8, characterized in that: A sealing ring adapted to the movable rod (1304) is fixed on each fixed shell (1301), a gap between each sealing ring and the corresponding piston (1303) forms an air chamber (17), and an air guide pipe (18) in communication with the air chamber (17) is fixedly connected between each fixed shell (1301) and the rotating cylinder (8); A group of air holes (19) is provided in each installation groove (12), and each group of air holes (19) is connected to a corresponding air guide pipe (18); a hook plate (20) located above the aluminum foil crushing bin (6) is fixed on the bracket (2), and the upper end of the hook plate (20) is movably fitted with the rotating cylinder (8); When the piston (1303) in contact with the micro switch (1302) moves outward under the action of the elastic member (1305), the gas in the corresponding air chamber (17) is blown toward the aluminum foil wound on the rotating cylinder (8) through the air guide tube (18) and the air hole (19), and the hook plate (20) hooks the blown aluminum foil.

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