Supporting box sealing machine and stacking mechanism thereof

Abstract

The invention relates to the technical field of supporting box sealing machines, and provides a supporting box sealing machine and a stacking mechanism thereof, the stacking mechanism comprises a conveying device, a guide rotating wheel and a storage rack, the input end of the conveying device is connected to the output end of a sealing machining part, and the conveying device is provided with a plurality of rails which are arranged side by side in the direction perpendicular to the conveying direction of the conveying device; the guide rotating wheel is rotationally arranged above the conveying device, and the guide rotating wheel is used for pushing the supporting boxes on the conveying device to different rails; the storage rack is arranged at the output end of the conveying device and used for bearing the supporting box. According to the stacking mechanism and the supporting box sealing machine, the supporting boxes can be stacked in a staggered mode, the box bodies of the lower-layer supporting boxes are used for supporting the upper-layer supporting boxes, leakage caused by the fact that films for sealing the lower-layer supporting boxes are crushed is avoided, the stability of goods piles can be improved through staggered stacking, and the transfer safety is effectively improved; and the damage rate of the supporting box in the transfer process is reduced, and the production benefit is improved.

Description

Technical Field

[0001] The present application relates to the technical field of tray and box sealing machines, and in particular to a tray and box sealing machine and a stacking mechanism thereof. Background Art

[0002] The tray sealer is a machine that uses plastic film strips to seal trays. The sealed trays can extend the shelf life of the items contained and facilitate packaging and transportation.

[0003] The tray sealing machine in the related art stacks the sealed trays manually or by machine. However, the trays are sealed with a soft film, and the soft film can only withstand a limited pressure. When stacking, the soft film may be crushed, resulting in sealing leakage. Summary of the invention

[0004] The embodiment of the present application provides a tray sealing machine and a stacking mechanism thereof, which can improve the technical problem in the related art that the sealed trays are easily crushed by the soft film when stacked, causing leakage.

[0005] In a first aspect, an embodiment of the present application provides a stacking mechanism, which is applied to a tray and box sealing machine, wherein the tray and box sealing machine includes a sealing processing unit, and the stacking mechanism includes: A conveying device, the input end of which is connected to the output end of the sealing processing unit, and the conveying device is used to transfer the sealed trays to the outside of the sealing processing unit; the conveying device has a plurality of tracks arranged side by side in a direction perpendicular to the conveying direction of the conveying device; A guide wheel, which is rotatably disposed above the conveying device and is used to push the tray on the conveying device to different tracks; and A storage rack, which is arranged at the output end of the conveying device and can be raised and lowered; the storage rack is used to support the tray; Wherein, the guide wheel includes a first group of track-changing parts and a second group of track-changing parts, and the guide wheel can rotate so that the first group of track-changing parts and the second group of track-changing parts push the trays on the conveying device in turn; the first group of track-changing parts can push the trays on the conveying device to a group of tracks respectively, and the second group of track-changing parts can push the trays on the conveying device to another group of tracks respectively, wherein each track in the other group of tracks is arranged between two adjacent tracks in the group of tracks; the first group of track-changing parts and the second group of track-changing parts push the trays on the conveying device alternately, and when the first group of track-changing parts pushes one tray into each track in the group of tracks, or the second group of track-changing parts pushes one tray into each track in the other group of tracks, the storage rack descends once, so that the trays subsequently conveyed to the storage rack via the conveying device can be staggered and stacked.

[0006] The above technical solutions in the embodiments of the present application have at least the following technical effects: The stacking mechanism provided in the embodiment of the present application transports the trays sealed by the sealing processing unit to the storage rack through a conveying device; pushes the trays on the conveying device to a group of tracks respectively through a first group of track-changing parts on the guide wheel, and pushes the trays on the conveying device to another group of tracks respectively through a second group of track-changing parts, wherein one group of tracks is arranged between two adjacent groups of tracks, so that the two groups of tracks are staggered; the guide wheel is rotated so that the first group of track-changing parts and the second group of track-changing parts take turns to push the trays on the conveying device, and when each track in a group of tracks inputs a tray to the storage rack, the storage rack is lowered by one level, so that the trays sent into the storage rack can be staggered and stacked. With such arrangement, the guide wheels are rotated to continuously push the trays in the conveying device, so that the trays enter different tracks and are output to the storage racks. The storage racks are lowered step by step so that the stacked upper trays fall above two trays. The upper trays are supported by the box bodies of the lower trays, which can prevent the film sealing the lower trays from being crushed and causing leakage. The staggered stacking can improve the stability of the cargo pile, increase the utilization of space, and effectively improve the safety of transportation, reduce the damage rate of trays during transportation, reduce material loss and waste, and improve production efficiency.

[0007] In some embodiments, the delivery device comprises: A conveyor belt, wherein the input end of the conveyor belt is connected to the output end of the sealing processing unit, and the upper surface of the conveyor belt forms a conveying plane; the conveyor belt is used to transfer the trays entering the conveying plane to the outside of the sealing processing unit along the conveying direction; and A support frame, the support frame is arranged below the conveyor belt, and the support frame is used to support the conveyor belt; Wherein, the guide wheel is arranged on one side of the conveyor belt, and the storage rack is arranged at the output end of the conveyor belt.

[0008] In some embodiments, the transmission plane includes: A plurality of primary conveying tracks, the primary conveying tracks being arranged in sequence along a direction perpendicular to the conveying direction; and at least one secondary conveying track, the number of the secondary conveying tracks being one less than the number of the primary conveying tracks, each of the secondary conveying tracks being arranged between two adjacent primary conveying tracks along a direction perpendicular to the conveying direction; Among them, all the first-level transfer tracks constitute the one group of tracks, and all the second-level transfer tracks constitute the other group of tracks; when all the tracks in the one group of tracks output one of the trays to the storage rack, the storage rack descends and switches to the other group of tracks to output the tray to the storage rack, so that the trays on the storage rack can be staggered and stacked.

[0009] In some embodiments, the guide wheel further comprises a driving wheel, which is disposed on one side of the conveyor belt; the axis of the driving wheel is perpendicular to the conveying plane, and the projection of the driving wheel in a direction perpendicular to the conveying plane does not coincide with the conveying plane; the driving wheel can rotate around its own axis, and the linear velocity direction of the point on the circumference of the driving wheel closest to the conveyor belt is the same as the conveying direction; The first group of track-changing components includes a plurality of primary track-changing push rods, each of which has a different length; the plurality of primary track-changing push rods are arranged on the driving wheel at intervals along the circumference of the driving wheel, and the plurality of primary track-changing push rods are arranged in order from short to long; the number of the primary track-changing push rods is equal to the number of the primary conveying tracks; the primary track-changing push rods are used to push the trays to the corresponding primary conveying tracks respectively; The second group of track-changing components includes a plurality of secondary track-changing push rods, each of which has a different length; the plurality of secondary track-changing push rods are arranged on the driving wheel at intervals along the circumference of the driving wheel, and the plurality of secondary track-changing push rods are arranged in order from short to long; the number of the secondary track-changing push rods is equal to the number of the secondary conveying tracks; the secondary track-changing push rods are used to push the trays to the corresponding secondary conveying tracks respectively; Among them, after all the first-level track-changing push rods push the trays to the corresponding first-level conveying tracks respectively, the second-level track-changing push rods push the trays to the corresponding second-level conveying tracks respectively in turn.

[0010] In some embodiments, the primary track change push rod includes: a first rod, one end of which is disposed on the driving wheel so that the first rod rotates along with the driving wheel around the axis of the driving wheel; and A first guide plate, which is arranged at the other end of the first rod body and extends along the rotation direction of the driving wheel, and is perpendicular to the first rod body; the first guide plate is used to push the tray to rotate until the length direction of the tray is parallel to the conveying direction, and push the tray to the corresponding primary conveying track; The secondary track change push rod comprises: a second rod, wherein two ends of the second rod are disposed on the driving wheel so that the second rod rotates along with the driving wheel around the axis of the driving wheel; and The second guide plate is arranged at the other end of the second rod body, and the second guide plate is extended along the rotation direction of the driving wheel, and the second guide plate is perpendicular to the second rod body; the second guide plate is used to push the tray to rotate until the length direction of the tray is parallel to the conveying direction, and push the tray to the corresponding secondary conveying track.

[0011] In some embodiments, the storage rack comprises: A lifting seat, the lifting seat is arranged at the output end of the conveyor belt; and A storage platform, the storage platform is arranged on the lifting seat; The lifting seat can be lowered step by step, and the height of each lowering of the lifting seat is equal to the thickness of the supporting box.

[0012] In some embodiments, the stacking mechanism further comprises: An auxiliary steering device, wherein the auxiliary steering device is arranged on the support frame, and the auxiliary steering device is arranged on a side close to the sealing processing part, so that the auxiliary steering device contacts the tray on the conveyor belt before the primary track changing push rod and the secondary track changing push rod; the auxiliary steering device is used to push the tray on the conveyor belt to rotate until the length direction of the tray is parallel to the conveying direction.

[0013] In some embodiments, the stacking mechanism further includes an auxiliary conveying device, and the auxiliary conveying device includes: an auxiliary conveyor belt, the auxiliary conveyor belt being arranged at the other side of the conveyor belt, the conveying direction and conveying speed of the auxiliary conveyor belt being the same as those of the conveyor belt; and A secondary support frame, the secondary support frame is arranged below the secondary conveyor belt, and the secondary support frame is used to support the secondary conveyor belt; Wherein, the upper surface of the auxiliary conveyor belt forms an auxiliary conveyor plane, and the auxiliary conveyor plane is on the same plane as the conveyor plane.

[0014] In some embodiments, the stacking mechanism also includes a control device, which is arranged below the conveyor belt. The control device is electrically connected to the conveyor belt, the driving wheel and the lifting seat, and is used to control the conveying speed of the conveyor belt, the rotation speed of the driving wheel and the height of the lifting seat.

[0015] In a second aspect, an embodiment of the present application provides a tray sealing machine, comprising: Sealing processing department; and As in the stacking mechanism described in any of the above embodiments, the input end of the conveying device of the stacking mechanism is connected to the output end of the sealing processing part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the structure of the stacking mechanism provided in an embodiment of the present application; Figure 2 A top view of the stacking mechanism provided in an embodiment of the present application; Figure 3 A schematic diagram of a stacking mechanism provided in an embodiment of the present application pushing a tray on a conveying device to a primary conveying track; Figure 4 A schematic diagram of a stacking mechanism provided in an embodiment of the present application pushing a tray on a conveying device to a secondary conveying track; Figure 5 A schematic diagram of the structure of a storage rack and staggered trays stacked thereon provided in an embodiment of the present application; Figure 6 A schematic diagram of the structure of a tray and box sealing machine provided in an embodiment of the present application.

[0018] Among them, the reference numerals in the figure are: 100, tray sealing machine; 10, stacking mechanism; 101, conveying device; 1011, conveyor belt; 10111, conveying plane; 101111, primary conveying track; 101112, secondary conveying track; 1012, support frame; 102, guide wheel; 1021, first set of track change parts; 10211, primary track change push rod; 102111, first rod body; 102112, first guide plate; 1022, second set of track change parts; 10221, secondary track change Rail push rod; 102211, second rod body; 102212, second guide plate; 1023, driving wheel; 103, storage rack; 1031, lifting seat; 1032, storage table; 104, auxiliary steering device; 105, auxiliary conveying device; 1051, auxiliary conveyor belt; 10511, auxiliary conveying plane; 1052, auxiliary support frame; 106, control device; 20, sealing processing unit; 30, frame; 40, feeding mechanism; 50, film conveying mechanism; 60, tray. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0025] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] The tray sealing machine is a machine that uses plastic film tape to seal trays.

[0027] The tray sealing machine in the related art stacks the sealed trays manually or by machine. However, the trays are sealed with a soft film, and the soft film can only withstand a limited pressure. When stacking, the soft film may be crushed, resulting in sealing leakage.

[0028] Based on this, in order to improve the technical problem in the related art that the sealed trays are easily crushed by the soft film when stacked, resulting in leakage, the embodiments of the present application provide the following solution.

[0029] Please also read Figures 1 to 6, the embodiment of the present application provides a stacking mechanism 10, which is applied to a tray sealing machine 100. The tray sealing machine 100 includes a sealing processing part 20, and the stacking mechanism 10 includes a conveying device 101, a guide wheel 102 and a storage rack 103. The input end of the conveying device 101 is connected to the output end of the sealing processing part 20, and the conveying device 101 is used to transfer the sealed tray 60 to the outside of the sealing processing part 20; the conveying device 101 has a plurality of tracks arranged side by side in a direction perpendicular to the conveying direction of the conveying device 101; the guide wheel 102 is rotatably arranged above the conveying device 101, and the guide wheel 102 is used to push the tray 60 on the conveying device 101 to different tracks; the storage rack 103 is arranged at the output end of the conveying device 101, and the storage rack 103 can be raised and lowered; the storage rack 103 is used to support the tray 60; wherein the guide wheel 102 includes a first set of track changing parts 1021 and a second set of track changing parts 10 22, the guide wheel 102 can rotate so that the first group of track changing parts 1021 and the second group of track changing parts 1022 push the tray 60 on the conveying device 101 in turn; the first group of track changing parts 1021 can push the tray 60 on the conveying device 101 to one group of tracks respectively, and the second group of track changing parts 1022 can push the tray 60 on the conveying device 101 to another group of tracks respectively, wherein each track in one group of tracks is arranged between two adjacent tracks in another group of tracks; the first group of track changing parts 1021 and the second group of track changing parts 1022 push the tray 60 on the conveying device 101 alternately, and when the first group of track changing parts 1021 pushes a tray 60 into each track in one group of tracks, or the second group of track changing parts 1022 pushes a tray 60 into each track in another group of tracks, the storage rack 103 descends once, so that the trays 60 subsequently transferred to the storage rack 103 via the conveying device 101 can be staggered and stacked.

[0030] It can be understood that the conveying device 101 can be a conveyor belt connected to multiple rollers, which drives the conveyor belt to move by driving the rollers to rotate, so that the objects on the surface of the conveyor belt move with the conveyor belt; it can also be a plurality of rollers arranged side by side along the conveying direction, and by driving all the rollers to rotate in one direction, the objects placed on the rollers can move along the conveying direction, but it is not limited to this. The guide wheel 102 can be hoisted above the conveying device 101, or a storage platform can be extended on the side of the conveying device 101 to support the guide wheel 102, so that the guide wheel 102 is above the conveying device 101, but it is not limited to this. The storage rack 103 can be a lifting rack with a platform at one end, and the lifting rack can be a scissor-type lifting rack, and the scissor-type structure can be driven by a hydraulic press or a motor to enable the platform to be raised and lowered; the lifting rack can also be a hydraulic cylinder, and the piston can be extended or retracted by injecting or discharging hydraulic oil into the cylinder body, so that the platform can be raised and lowered, but it is not limited to this. The first set of track changers 1021 includes a plurality of track changers of different lengths to push the tray 60 to different tracks. The track changers may be long rods or long strip-shaped structures, but are not limited thereto. The second set of track changers 1022 may have the same structure as the first set of track changers 1021 but of different lengths to push the tray 60 to a track different from the first set of track changers 1021.

[0031] As can be seen from the above, the stacking mechanism 10 provided in the embodiment of the present application transports the tray 60 that has been sealed by the sealing processing unit 20 to the storage rack 103 through the conveying device 101; pushes the tray 60 on the conveying device 101 to a group of tracks respectively through the first group of track changing parts 1021 on the guide wheel 102, and pushes the tray 60 on the conveying device 101 to another group of tracks respectively by the second group of track changing parts 1022, wherein one group of tracks is arranged between two adjacent groups of tracks, so that the two groups of tracks are staggered; the guide wheel 102 is rotated to make the first group of track changing parts 1021 and the second group of track changing parts 1022 take turns to push the tray 60 on the conveying device 101, and when each track in a group of tracks inputs a tray 60 to the storage rack 103, the storage rack 103 is lowered by one level, so that the trays 60 sent into the storage rack 103 can be staggered and stacked. With such arrangement, the guide wheel 102 rotates to continuously push the tray 60 in the conveying device 101, so that the tray 60 enters different tracks and is then output to the storage rack 103. The storage rack 103 descends step by step, so that the stacked upper tray 60 falls above two trays 60. The box body of the lower tray 60 is used to support the upper tray 60, which can prevent the film sealing the lower tray 60 from being crushed and causing leakage. In addition, the staggered stacking can improve the stability of the cargo pile, improve the utilization rate of space, and effectively improve the safety of transportation, reduce the damage rate of the tray 60 during transportation, reduce material loss and waste, and improve production efficiency.

[0032] In some embodiments, please refer to Figures 1 to 4 The conveying device 101 includes a conveyor belt 1011 and a support frame 1012. The input end of the conveyor belt 1011 is connected to the output end of the sealing processing unit 20, and the upper surface of the conveyor belt 1011 forms a conveying plane 10111; the conveyor belt 1011 is used to transfer the tray 60 entering the conveying plane 10111 to the outside of the sealing processing unit 20 along the conveying direction; the support frame 1012 is arranged below the conveyor belt 1011, and the support frame 1012 is used to support the conveyor belt 1011; wherein, the guide wheel 102 is arranged on one side of the conveyor belt 1011, and the storage rack 103 is arranged at the output end of the conveyor belt 1011.

[0033] It is understood that the conveyor belt 1011 may include a conveyor belt, a plurality of rollers and a driving motor. The conveyor belt may be a belt body as wide as the roller, or a plurality of belt bodies may be arranged on the roller at intervals, but is not limited thereto. The roller and the power output end of the driving motor may be driven by a belt or by a gear, but is not limited thereto. The driving motor may be a DC motor or a stepping motor, but is not limited thereto. The support frame 1012 may be made of metal or plastic, but is not limited thereto.

[0034] With such arrangement, the trays 60 that have completed sealing in the sealing processing unit 20 can be continuously conveyed to the storage rack 103 via the conveyor belt 1011, and all the trays 60 can move at the same speed on the same conveying plane 10111, keeping the distance between each tray 60 unchanged, avoiding damage to the trays 60 due to bumps during transportation, and providing a stable output speed for subsequent operations, which is conducive to further expanding additional processes, effectively saving human resources, and improving production efficiency.

[0035] In some embodiments, see Figure 3 and Figure 4 The conveying plane 10111 includes a plurality of primary conveying tracks 101111 and at least one secondary conveying track 101112. The primary conveying tracks 101111 are sequentially arranged in a direction perpendicular to the conveying direction. The number of the secondary conveying tracks 101112 is one less than the number of the primary conveying tracks 101111. Each secondary conveying track 101112 is arranged between two adjacent primary conveying tracks 101111 in a direction perpendicular to the conveying direction.

[0036] Among them, all the first-level conveying tracks 101111 form a group of tracks, and all the second-level conveying tracks 101112 form another group of tracks; when all the tracks in a group of tracks output a tray 60 to the storage rack 103, the storage rack 103 descends and switches to another group of tracks to output the tray 60 to the storage rack 103, so that the trays 60 on the storage rack 103 can be staggered and stacked.

[0037] It can be understood that the primary conveying track 101111 and the secondary conveying track 101112 represent conveying areas arranged in sequence along a direction perpendicular to the conveying direction, and the widths of each primary conveying track 101111 and the secondary conveying track 101112 are the same, so that the trays 60 transported to the storage rack 103 can be evenly distributed. Each secondary conveying track 101112 has an overlapping area with two adjacent primary conveying tracks 101111, so that the trays 60 output along the secondary conveying track 101112 can fall on the box bodies of the trays 60 output by two adjacent primary conveying tracks 101111.

[0038] With such arrangement, after all the first-level conveying tracks 101111 respectively output a tray 60 to the storage rack 103, the storage rack 103 moves down one level, so that the tray 60 output by the second-level conveying track 101112 can be stacked on the upper surface of the existing tray 60 on the storage rack 103, and the tray 60 output by the second-level conveying track 101112 can fall on the box bodies of two trays 60 output by adjacent first-level conveying tracks 101111, forming a staggered stack, and the box body of the lower tray 60 is used to support the upper tray 60, which can prevent the film sealing the lower tray 60 from being crushed and causing leakage, and the staggered stacking can improve the stability of the cargo pile, improve the utilization rate of space, and effectively improve the safety of transportation, reduce the damage rate of the tray 60 during transportation, reduce material loss and waste, and improve production efficiency.

[0039] Optionally, see Figures 1 to 4, the guide wheel 102 also includes a driving wheel 1023, and the driving wheel 1023 is arranged on one side of the conveyor belt 1011; the axis of the driving wheel 1023 is perpendicular to the conveying plane 10111, and the projection of the driving wheel 1023 in the direction perpendicular to the conveying plane 10111 does not coincide with the conveying plane 10111; the driving wheel 1023 can rotate around its own axis, and the linear velocity direction of the point on the circumference of the driving wheel 1023 closest to the conveyor belt 1011 is the same as the conveying direction; the first group of track changing parts 1021 includes a plurality of primary track changing push rods 10211, and the lengths of the respective primary track changing push rods 10211 are different; the plurality of primary track changing push rods 10211 are arranged on the driving wheel 1023 at intervals along the circumference of the driving wheel 1023, and the plurality of primary track changing push rods 10211 are arranged in sequence from short to long; the number of primary track changing push rods 10211 is equal to the number of primary conveying tracks 101111 ; The first-level track-changing push rod 10211 is used to push the tray 60 to the corresponding first-level conveying track 101111 respectively; the second group of track-changing parts 1022 includes multiple second-level track-changing push rods 10221, and the lengths of each second-level track-changing push rod 10221 are different; multiple second-level track-changing push rods 10221 are arranged on the driving wheel 1023 at intervals along the circumference of the driving wheel 1023, and multiple second-level track-changing push rods 10221 are arranged in sequence from short to long; the number of second-level track-changing push rods 10221 is equal to the number of second-level conveying tracks 101112; the second-level track-changing push rods 10221 are used to push the tray 60 to the corresponding second-level conveying track 101112 respectively; wherein, after all the first-level track-changing push rods 10211 push the tray 60 to the corresponding first-level conveying track 101111 respectively, the second-level track-changing push rods 10221 push the tray 60 to the corresponding second-level conveying track 101112 respectively in sequence.

[0040] It can be understood that the guide wheel 102 also includes a driving device, and the power output end of the driving device is connected to the driving wheel 1023, which is used to drive the driving wheel 1023 to rotate. The driving device can use a DC motor or an AC motor, but is not limited to this. The first-level track-changing push rod 10211 can be arranged from short to long along the rotation direction of the driving wheel 1023, or from short to long along the opposite direction of the rotation direction of the driving wheel 1023; the second-level track-changing push rod 10221 can be arranged from short to long along the rotation direction of the driving wheel 1023, or from short to long along the opposite direction of the rotation direction of the driving wheel 1023. The first-level track-changing push rod 10211 can be a hollow rod body with two sections of different diameters, which can extend or retract the rod section with a smaller diameter into the rod section with a larger diameter by injecting or discharging compressed air; it can also be a long rod with a fixed length that cannot be extended, but is not limited to this. The length of the primary track-changing push rod 10211 is equal to the shortest distance from the primary conveying track 101111 to the driving wheel 1023, and one primary track-changing push rod 10211 corresponds to one primary conveying track 101111. The secondary track-changing push rod 10221 can adopt the same structure as the primary track-changing push rod 10211.

[0041] In this way, the driving device drives the driving wheel 1023 to rotate, and then the first-level track-changing push rod 10211 and the second-level track-changing push rod 10221 rotate around the axis perpendicular to the conveying plane 10111, so as to continuously push the tray 60 on the conveyor belt 1011, thereby improving the work efficiency of stacking the tray 60, and can reduce the stroke of the first-level track-changing push rod 10211 and the second-level track-changing push rod 10221 in the perpendicular direction of the conveying direction, reduce the speed of the tray 60 when being pushed to different tracks, and improve the accuracy of the tray 60 entering different tracks, so that the tray 60 can enter the storage rack 103 via different tracks according to the pre-setting, so that the multi-layer trays 60 are stacked neatly, and the stability of the trays 60 after stacking and the safety during transportation are improved.

[0042] In some embodiments, see Figures 1 to 4 The first-level track-changing push rod 10211 includes a first rod body 102111 and a first guide plate 102112. One end of the first rod body 102111 is arranged on the driving wheel 1023, so that the first rod body 102111 rotates around the axis of the driving wheel 1023 along with the driving wheel 1023; the first guide plate 102112 is arranged at the other end of the first rod body 102111, and the first guide plate 102112 extends along the rotation direction of the driving wheel 1023, and the first guide plate 102112 is perpendicular to the first rod body 102111; the first guide plate 102112 is used to push the tray 60 to rotate until the length direction of the tray 60 is parallel to the conveying direction, and push the tray 60 to the corresponding first-level conveying track; The secondary track-changing push rod 10221 includes a second rod body 102211 and a second guide plate 102212. The two ends of the second rod body 102211 are arranged on the driving wheel 1023, so that the second rod body 102211 rotates around the axis of the driving wheel 1023 along with the driving wheel 1023; the second guide plate 102212 is arranged at the other end of the second rod body 102211, and the second guide plate 102212 is extended along the rotation direction of the driving wheel 1023, and the second guide plate 102212 is perpendicular to the second rod body 102211; the second guide plate 102212 is used to push the tray 60 to rotate until the length direction of the tray 60 is parallel to the conveying direction, and push the tray 60 to the corresponding secondary conveying track.

[0043] It can be understood that the first rod body 102111 can be a non-retractable rod, or a hollow rod body with two sections of different diameters, which can extend or retract the rod section with a smaller diameter into the rod section with a larger diameter by injecting or discharging compressed air, so as to realize the extension and contraction of the rod body, but it is not limited to this. The length of the first rod body 102111 is equal to the shortest distance from the primary conveying track 101111 to the driving wheel 1023. The second rod body 102211 can adopt the same structure as the first rod body 102111. The first guide plate 102112 is used to rotate the tray 60 and maintain the structure in which the long side direction of the tray 60 is parallel to the conveying direction. The first guide plate 102112 can be welded on the first rod body 102111, or by opening a threaded hole on the first guide plate 102112, opening a thread at the end of the first rod body 102111, and connecting the first guide plate 102112 to the first rod body 102111 through the cooperation of the thread and the threaded hole, but it is not limited to this. The first guide plate 102112 may be a square plate or a plate with a hole in the middle, but is not limited thereto. The second guide plate 102212 may have the same structure as the first guide plate 102112.

[0044] With such arrangement, in the process of conveying the tray 60 to the storage rack 103, the end of the first guide plate 102112 of the shortest or longest first-level track-changing push rod 10211 away from the first rod body 102111 first contacts the long side of the tray 60, and with the rotation of the driving wheel 1023, when the first-level track-changing push rod 10211 rotates until the first rod body 102111 is perpendicular to the conveying direction, the first guide plate 102112 pushes the tray 60 into the corresponding track and makes the long side of the tray 60 parallel to the conveying direction, and the first-level track-changing push rod 10211 disengages from the tray 60. After the first-level track-changing push rod 10211 contacts and disengages from the tray 60 in sequence according to the order of the rod bodies from long to short or from short to long, the storage rack 103 descends one level, and the second-level track-changing push rod 10221 begins to contact and disengage from the tray 60 in sequence according to the order of the rod bodies from long to short or from short to long, and this process is continuously repeated. In this way, the first-stage track-changing push rod 10211 and the second-stage track-changing push rod 10221 can continuously push the tray 60 on the conveyor belt 1011 driven by the rotation of the driving wheel 1023, and the conveying stability and continuity are excellent. The trays 60 are stacked firmly and not easy to tip over, and are staggered with each other, which reduces the damage rate caused by stacking and improves the safety during transportation. It can effectively improve production efficiency and save manpower. The structure of the mechanism is simple, and the maintenance cost and difficulty are low, which significantly improves production efficiency.

[0045] Optionally, in some embodiments, see Figure 1 and Figure 5 The storage rack 103 includes a lifting seat 1031 and a storage platform 1032. The lifting seat 1031 is arranged at the output end of the conveyor belt 1011; the storage platform 1032 is arranged on the lifting seat 1031; wherein the lifting seat 1031 can be lowered step by step, and the height of each step of the lifting seat 1031 is equal to the thickness of the tray 60.

[0046] It can be understood that the lifting seat 1031 can be composed of two hollow rods with different diameters, and the compressed air in the large diameter rod can be injected or discharged to make the rod section with a small diameter extend or retract into the rod section with a large diameter to achieve the extension and retraction of the lifting seat 1031; it can also be a scissor-type lifting structure composed of multiple connecting rods, and the lifting seat 1031 can be raised and lowered by driving the extension and retraction of the scissor-type structure by a motor, but it is not limited to this. The lifting seat 1031 can be lowered step by step by adjusting the volume of compressed gas injected and discharged into the hollow rod body each time, and the shortening length of the scissor-type structure can be controlled by setting the number of revolutions of the motor rotor, so that the lifting seat 1031 can be lowered step by step, but it is not limited to this.

[0047] With such arrangement, the lifting seat 1031 can drive the lifting platform to rise and fall, and when there is no tray 60 on the lifting platform, the upper surface of the lifting platform is flush with the conveying plane 10111, so that the tray 60 can enter the lifting platform smoothly. After the primary conveying track 101111 or the secondary conveying track 101112 respectively delivers a tray 60 to the lifting platform, it descends one level, so that the upper surface of the lifting platform and the tray 60 thereon are flush with the conveying plane 10111, providing a flat surface for the tray 60 subsequently delivered to the lifting platform, so that the tray 60 can enter the lifting platform smoothly and avoid tipping. In this way, with the cooperation of the conveying device 101, the guide wheel 102 and the storage rack 103, the tray 60 can be staggered and stacked on the storage platform 1032 smoothly.

[0048] Optionally, see Figures 1 to 4 The stacking mechanism 10 also includes an auxiliary steering device 104, which is arranged on the support frame 1012, and the auxiliary steering device 104 is arranged on a side close to the sealing processing part 20, so that the auxiliary steering device 104 contacts the tray 60 on the conveyor belt 1011 before the primary track changing push rod 10211 and the secondary track changing push rod 10221; the auxiliary steering device 104 is used to push the tray 60 on the conveyor belt 1011 to rotate until the length direction of the tray 60 is parallel to the conveying direction.

[0049] It can be understood that the auxiliary steering device 104 can be a block disposed on the support frame 1012. In this case, the conveyor belt 1011 is composed of two or more conveyor belts, and the auxiliary steering device 104 protrudes from the gap between the two or more conveyor belts to the conveying plane 10111, so that the supporting box 60 on the conveyor belt 1011 can contact the auxiliary steering device 104; or the auxiliary steering device 104 can also be a folding rod bent from the side of the support frame 1012 to the top of the conveyor belt 1011, and the end of the folding rod contacts the supporting box 60 on the conveyor belt 1011. The auxiliary steering device 104 can be welded or glued to the support frame 1012, but is not limited thereto.

[0050] With such arrangement, the long side of the tray 60 output from the sealing processing section 20 is perpendicular to the conveying direction, and the tray 60 on the conveyor belt 1011 is pushed by the auxiliary steering device 104 and the long side of the tray 60 is rotated by a certain angle in a direction parallel to the conveying direction, thereby increasing the contact range of the tray 60 with the primary track changing push rod 10211 or the secondary track changing push rod 10221, and reducing the possibility that the tray 60 cannot correctly enter the corresponding track due to the deviation of the contact position with the primary track changing push rod 10211 or the secondary track changing push rod 10221, thereby reducing the failure rate of the stacking mechanism 10, reducing the cost required for maintaining the stacking mechanism 10, improving the working efficiency of the tray sealing machine 100, and making the quality of the produced trays 60 stable.

[0051] In some embodiments, see Figures 1 to 4 The stacking mechanism 10 also includes a sub-conveyor device 105, and the sub-conveyor device 105 includes a sub-conveyor belt 1051 and a sub-support frame 1052. The sub-conveyor belt 1051 is arranged on the other side of the conveyor belt 1011, and the conveying direction and conveying speed of the sub-conveyor belt 1051 are the same as those of the conveyor belt 1011; the sub-support frame 1052 is arranged below the sub-conveyor belt 1051, and the sub-support frame 1052 is used to support the sub-conveyor belt 1051; wherein, the upper surface of the sub-conveyor belt 1051 forms a sub-conveyor plane 10511, and the sub-conveyor plane 10511 is on the same plane as the conveying plane 10111.

[0052] It can be understood that the auxiliary conveying device 105 can adopt the same structure as the conveying device 101 in the above embodiment. The auxiliary conveying plane 10511 is on the same plane as the conveying plane 10111, so that the primary conveying track 101111 and the secondary conveying track 101112 can be set on the auxiliary conveying plane 10511, and the tray 60 on the conveyor belt 1011 can be smoothly pushed to the auxiliary conveyor belt 1051 by the primary track change push rod 10211 or the secondary track change push rod 10221.

[0053] With such an arrangement, the primary conveying track 101111 and the secondary conveying track 101112 are extended from the conveying plane 10111 to the secondary conveying plane 10511 through the secondary conveying belt 1051, thereby increasing the number of single-layer trays 60 on the storage rack 103, which is beneficial to improving the stacking stability of the trays 60, improving the safety of the trays 60 during transportation, reducing the loss of the trays 60 caused by transportation, saving production resources, and being able to improve the efficiency of transportation and stacking, thereby improving the working efficiency of the tray sealing machine 100.

[0054] In some embodiments, see Figure 1 The stacking mechanism 10 also includes a control device 106, which is arranged below the conveyor belt 1011. The control device 106 is electrically connected to the conveyor belt 1011, the driving wheel 1023 and the lifting seat 1031, and is used to control the conveying speed of the conveyor belt 1011, the rotation speed of the driving wheel 1023 and the height of the lifting seat 1031.

[0055] It can be understood that the control device 106 can include components such as data processing components and infrared sensors, and the data processing components can be MCU, data processing chips, etc., but are not limited thereto. The infrared sensor can be arranged above the conveying device 101 to detect the distance between the tray 60 on the conveyor belt 1011 and the guide wheel 102, and then according to the distance between the tray 60 and the guide wheel 102, the conveying speed of the conveyor belt 1011 and the rotation speed of the driving wheel 1023 are adjusted through the data processing component.

[0056] With such an arrangement, the start and stop and working power of the conveyor belt 1011, the driving wheel 1023 and the lifting seat 1031 are coordinated and controlled through the control device 106, thereby controlling the conveying speed of the conveyor belt 1011, the rotation speed of the driving wheel 1023 and the height of the lifting seat 1031. This can improve the working accuracy of the stacking mechanism 10, ensure that the equipment operates in the best condition, improve the utilization efficiency of the equipment, reduce dependence on manual operation, reduce the possibility of human error, effectively improve the product quality produced by the tray sealing machine 100, and improve the working efficiency of the production line.

[0057] See also Figures 1 to 6 The embodiment of the present application further provides a tray sealing machine 100, which includes a frame 30, a feeding mechanism 40, a film conveying mechanism 50, a sealing processing unit 20 and a stacking mechanism 10 as described in any one of the above embodiments; wherein the feeding mechanism 40 is arranged on one side of the frame 30; the sealing processing unit 20 is arranged in the middle of the frame 30, and the input end of the sealing processing unit 20 is connected to the output end of the feeding mechanism 40; the film conveying mechanism 50 is arranged on the frame 30, and the film conveying mechanism 50 is arranged above the sealing processing unit 20; the input end of the conveying device of the stacking mechanism 10 is connected to the output end of the sealing processing unit 20.

[0058] It can be understood that the frame 30 is a component for carrying various mechanisms of the tray and box sealing machine 100. The feeding mechanism 40 is a component for inputting the unsealed tray 60 into the sealing processing unit 20, for example, it can be a conveyor belt 1011, or it can be a manipulator that can clamp and place it, but it is not limited to this. The film conveying mechanism 50 is a component for conveying the film to the sealing processing unit 20, for example, it can be a plurality of rollers, which drive the rollers to rotate to pull the film to move to the sealing processing unit 20; it can also be a reciprocating clamp that can clamp one end of the film and pull it toward the sealing processing unit 20, but it is not limited to this. The sealing processing unit 20 is a mechanism for sealing the film to the opening of the tray 60 by heat sealing or cold pressing technology, for example, it can be a structure divided into upper and lower two pieces, and the film is sealed on the tray 60 by closing the upper and lower structures; it can also be a reciprocating block that seals the film on the tray 60, but it is not limited to this.

[0059] As can be seen from the above, the tray box sealing machine 100 provided in the embodiment of the present application, the tray box sealing machine 100 inputs the unsealed tray box 60 into the sealing processing unit 20 through the feeding mechanism 40, and the sealing processing unit 20 covers the film conveyed by the film conveying mechanism 50 on the unsealed tray box 60, and completes the sealing, and then the stacking mechanism 10 outputs the sealed tray box 60 and staggers and stacks them. In this way, there is no need to manually stack the processed tray boxes 60, and the stacked upper tray box 60 can fall above the two tray boxes 60. The box body of the lower tray box 60 is used to support the upper tray box 60, which can prevent the film sealed by the lower tray box 60 from being crushed and causing leakage, and the staggered stacking can improve the stability of the cargo pile, improve the utilization rate of space, and effectively improve the safety of transportation, reduce the damage rate of the tray box 60 during transportation, reduce the loss and waste of materials, and improve production efficiency.

[0060] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A stacking mechanism, characterized in that: Applicable to a tray and box sealing machine, the tray and box sealing machine includes a sealing processing part, and the stacking mechanism includes: A conveying device, the input end of which is connected to the output end of the sealing processing unit, and the conveying device is used to transfer the sealed trays to the outside of the sealing processing unit; the conveying device has a plurality of tracks arranged side by side in a direction perpendicular to the conveying direction of the conveying device; A guide wheel, which is rotatably disposed above the conveying device and is used to push the tray on the conveying device to different tracks; and A storage rack, which is arranged at the output end of the conveying device and can be raised and lowered; the storage rack is used to support the tray; Wherein, the guide wheel includes a first group of track-changing parts and a second group of track-changing parts, and the guide wheel can rotate so that the first group of track-changing parts and the second group of track-changing parts push the trays on the conveying device in turn; the first group of track-changing parts can push the trays on the conveying device to a group of tracks respectively, and the second group of track-changing parts can push the trays on the conveying device to another group of tracks respectively, wherein each track in the other group of tracks is arranged between two adjacent tracks in the group of tracks; the first group of track-changing parts and the second group of track-changing parts push the trays on the conveying device alternately, and when the first group of track-changing parts pushes one tray into each track in the group of tracks, or the second group of track-changing parts pushes one tray into each track in the other group of tracks, the storage rack descends once, so that the trays subsequently conveyed to the storage rack via the conveying device can be staggered and stacked.

2. The stacking mechanism according to claim 1, characterized in that: The transmission device comprises: A conveyor belt, wherein the input end of the conveyor belt is connected to the output end of the sealing processing unit, and the upper surface of the conveyor belt forms a conveying plane; the conveyor belt is used to transfer the trays entering the conveying plane to the outside of the sealing processing unit along the conveying direction; and A support frame, the support frame is arranged below the conveyor belt, and the support frame is used to support the conveyor belt; Wherein, the guide wheel is arranged on one side of the conveyor belt, and the storage rack is arranged at the output end of the conveyor belt.

3. The stacking mechanism according to claim 2, characterized in that: The transmission plane comprises: A plurality of primary conveying tracks, the primary conveying tracks being arranged in sequence along a direction perpendicular to the conveying direction; and at least one secondary conveying track, the number of the secondary conveying tracks being one less than the number of the primary conveying tracks, each of the secondary conveying tracks being arranged between two adjacent primary conveying tracks along a direction perpendicular to the conveying direction; Among them, all the first-level transfer tracks constitute the one group of tracks, and all the second-level transfer tracks constitute the other group of tracks; when all the tracks in the one group of tracks output one of the trays to the storage rack, the storage rack descends and switches to the other group of tracks to output the tray to the storage rack, so that the trays on the storage rack can be staggered and stacked.

4. The stacking mechanism according to claim 3, characterized in that: The guide wheel further comprises a driving wheel, which is arranged at one side of the conveyor belt; the axis of the driving wheel is perpendicular to the conveying plane, and the projection of the driving wheel in a direction perpendicular to the conveying plane does not coincide with the conveying plane; the driving wheel can rotate around its own axis, and the linear velocity direction of the point on the circumference of the driving wheel closest to the conveyor belt is the same as the conveying direction; The first group of track-changing components includes a plurality of primary track-changing push rods, each of which has a different length; the plurality of primary track-changing push rods are arranged on the driving wheel at intervals along the circumference of the driving wheel, and the plurality of primary track-changing push rods are arranged in order from short to long; the number of the primary track-changing push rods is equal to the number of the primary conveying tracks; the primary track-changing push rods are used to push the trays to the corresponding primary conveying tracks respectively; The second group of track-changing components includes a plurality of secondary track-changing push rods, each of which has a different length; the plurality of secondary track-changing push rods are arranged on the driving wheel at intervals along the circumference of the driving wheel, and the plurality of secondary track-changing push rods are arranged in order from short to long; the number of the secondary track-changing push rods is equal to the number of the secondary conveying tracks; the secondary track-changing push rods are used to push the trays to the corresponding secondary conveying tracks respectively; Among them, after all the first-level track-changing push rods push the trays to the corresponding first-level conveying tracks respectively, the second-level track-changing push rods push the trays to the corresponding second-level conveying tracks respectively in turn.

5. The stacking mechanism according to claim 4, characterized in that: The primary track change push rod comprises: a first rod, one end of which is disposed on the driving wheel so that the first rod rotates along with the driving wheel around the axis of the driving wheel; and A first guide plate, which is arranged at the other end of the first rod body and extends along the rotation direction of the driving wheel, and is perpendicular to the first rod body; the first guide plate is used to push the tray to rotate until the length direction of the tray is parallel to the conveying direction, and push the tray to the corresponding primary conveying track; The secondary track change push rod comprises: a second rod, wherein two ends of the second rod are disposed on the driving wheel so that the second rod rotates along with the driving wheel around the axis of the driving wheel; and The second guide plate is arranged at the other end of the second rod body, and the second guide plate is extended along the rotation direction of the driving wheel, and the second guide plate is perpendicular to the second rod body; the second guide plate is used to push the tray to rotate until the length direction of the tray is parallel to the conveying direction, and push the tray to the corresponding secondary conveying track.

6. The stacking mechanism according to claim 3, characterized in that: The storage rack comprises: A lifting seat, the lifting seat is arranged at the output end of the conveyor belt; and A storage platform, the storage platform is arranged on the lifting seat; The lifting seat can be lowered step by step, and the height of each lowering of the lifting seat is equal to the thickness of the supporting box.

7. The stacking mechanism according to claim 4, characterized in that: The stacking mechanism also includes: An auxiliary steering device, wherein the auxiliary steering device is arranged on the support frame, and the auxiliary steering device is arranged on a side close to the sealing processing part, so that the auxiliary steering device contacts the tray on the conveyor belt before the primary track changing push rod and the secondary track changing push rod; the auxiliary steering device is used to push the tray on the conveyor belt to rotate until the length direction of the tray is parallel to the conveying direction.

8. The stacking mechanism according to claim 2, characterized in that: The stacking mechanism further includes an auxiliary conveying device, and the auxiliary conveying device includes: an auxiliary conveyor belt, the auxiliary conveyor belt being arranged at the other side of the conveyor belt, the conveying direction and conveying speed of the auxiliary conveyor belt being the same as those of the conveyor belt; and A secondary support frame, the secondary support frame is arranged below the secondary conveyor belt, and the secondary support frame is used to support the secondary conveyor belt; Wherein, the upper surface of the auxiliary conveyor belt forms an auxiliary conveyor plane, and the auxiliary conveyor plane is on the same plane as the conveyor plane.

9. The stacking mechanism according to claim 4, characterized in that: The stacking mechanism also includes a control device, which is arranged below the conveyor belt and is electrically connected to the conveyor belt, the driving wheel and the lifting seat, and is used to control the conveying speed of the conveyor belt, the rotation speed of the driving wheel and the height of the lifting seat.

10. A tray sealing machine, characterized in that: The tray sealing machine comprises: Sealing processing department; and The stacking mechanism according to any one of claims 1 to 9, wherein an input end of the conveying device of the stacking mechanism is connected to an output end of the sealing processing section.

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