A tube sealing pre-treatment device

Abstract

The utility model relates to packing material technical field discloses a kind of pipe sealing pretreatment device, it includes rack, article placing carousel, suction tube feeding mechanism, bag placing mechanism, preheating sealing mechanism and transition pushing mechanism;Through the one-to-one correspondence setting of four article placing positions and pipe placing station, bag placing station, preheating sealing station and push-out station, to make it can be completed suction tube feeding of receiving suction tube feeding mechanism, receiving soft bag, preheating sealing knife relative suction tube and soft bag heat sealing and conveying to the feed end of transition pushing mechanism in turn by the rotation of article placing carousel, and the workpiece that completes preheating sealing processing is pushed out by transition pushing mechanism;That is, the feeding of suction tube and soft bag is realized by this, and relative movement of suction tube and soft bag is prevented by preheating sealing, to separate the feeding procedure from multiple continuous heat sealing procedures, facilitate the production efficiency of production line is improved;And by the independent setting of feeding procedure and the carousel type setting of article placing carousel, certain occupied space can be saved.

Description

Technical Field

[0001] This utility model relates to the field of packaging material technology, and in particular to a sealing tube pretreatment device. Background Technology

[0002] Sealing refers to the process of heat-sealing a spout or straw to a flexible packaging bag to form a flexible packaging bag with a spout or straw. Flexible packaging bags with spouts or straws are widely used in the packaging of liquids, powders, pharmaceuticals, and daily chemical products, therefore, the reliability of the connection between the spout or straw and the flexible packaging bag is of high importance.

[0003] Existing sealing equipment is mainly sealing machines, which mainly include a straw feeding mechanism, a bag placement mechanism, and a heat sealing system. In order to improve the reliability of straws and packaging soft bags, the heat sealing system needs to be continuously equipped with multiple heat sealing knives to ensure that the heat sealing is in place. In addition, with the straw feeding mechanism and the bag placement mechanism, existing sealing machines are mostly set up as assembly lines, which occupy a large space.

[0004] In addition, the feeding of straws and the installation of packaging bags are relatively fast, while the heat sealing process is relatively slow. Multiple heat sealing processes will reduce the production efficiency of the production line. Utility Model Content

[0005] The purpose of this invention is to provide a pre-treatment device for sealing tubes, which solves the problems of large space occupation and low production efficiency of existing sealing tube equipment.

[0006] To achieve the above objectives, this utility model provides a sealing tube pretreatment device, which includes a frame and a rotating tray, a straw feeding mechanism, a bag feeding mechanism, a preheating sealing mechanism, and a transition pushing mechanism mounted on the frame. The frame has a tube feeding station, a bag feeding station, a preheating and sealing station, and an ejection station arranged in a ring at even intervals. The turntable is located at the center of the ring and is rotatably connected to the frame; the outer periphery of the turntable has four placement positions, so that the placement positions correspond one-to-one with the tube placement position, bag placement position, preheat sealing position and ejection position. The straw feeding mechanism is used to convey straws, and its discharge end is corresponding to the placement position in the straw feeding station; the bag feeding mechanism is used to convey soft bags, and its discharge end is corresponding to the placement position in the bag feeding station; the preheat sealing mechanism includes a preheat sealing knife, and the preheat sealing knife is corresponding to the placement position in the preheat sealing station; the transition pushing mechanism is used to output the workpiece, and its feed end is corresponding to the placement position in the push-out station.

[0007] Furthermore, the turntable includes a tray body and a storage component; The disk body is horizontally arranged and rotatably connected to the frame, and the four placement components are evenly spaced along the circumference of the disk body and fixedly connected to the disk body; The storage component extends along an axis opposite to the disc body, and the side of the storage component opposite to the disc body has at least one storage space, the at least one storage space defining the storage position.

[0008] Furthermore, the storage component includes an extension frame, a support plate, a protective bag frame, and a tube holding plate; The extension frame extends along the axis opposite to the disk body and is fixedly connected to the disk body; the extension direction of the extension frame is defined as the first direction, and the direction perpendicular to the first direction on the horizontal plane is defined as the second direction; The extension frame is fixedly provided with a support plate extending in the second direction at one end away from the disk body; a plurality of tube holding plates are fixedly provided at intervals along the second direction to the support plate and extend in the first direction. The tube holding plate has a tube holding groove that penetrates the side surface and the top and bottom surfaces of the tube holding plate facing away from the support plate. The tube holding plate has a protective bag frame on each side in the first direction. The protective bag frame extends vertically and is detachably connected to the support plate. Each of the two protective bag frames has a protective bag groove on the opposite side for inserting a soft bag. The tube-holding groove and the protective bag grooves on both sides in the first direction together define the storage space.

[0009] Furthermore, the straw feeding mechanism includes a straw loading assembly and a straw loading cylinder; The upper tube assembly has a tube supply groove, a connecting groove and a guide groove that are connected in sequence for supplying the suction tube; The extension direction of the guide groove corresponds to the placement position in the pipe laying station; The connecting groove includes a first connecting section and a second connecting section that are connected and perpendicular to each other. The first connecting section is connected to the guide groove and is arranged in the same direction. The second connecting section is connected to one end of the first connecting section away from the guide groove, and the other end is connected to the supply pipe groove. The supply pipe groove extends upward at an angle away from the second connecting section. The upper tube cylinder is located at the end of the first connecting section away from the guide groove, and the output end of the upper tube cylinder is spaced above the connecting groove.

[0010] Furthermore, the supply pipe groove extends in a direction perpendicular to the first connecting section and is located on one side of the bag-dispensing mechanism.

[0011] Furthermore, the bag-dispensing mechanism includes a soft bag hopper, a crank structure, a swing cylinder, a bag-opening assembly, and a moving cylinder, all mounted on the frame. The crank structure is spaced below the outlet of the soft bag hopper; the crank structure is equipped with a first suction cup for adsorbing the soft bag; the output end of the swing cylinder is connected to the crank structure for driving the crank structure to swing. The bag opening assembly is provided between the crank structure and the turntable. The bag opening assembly includes a guide clamp and at least one set of second suction cups with opposite openings. There is a gap between the second suction cups with opposite openings, and the gap is defined as the bag opening cavity. The bag opening cavity is located above the placement position of the bag placement station. The output end of the moving cylinder is connected to the second suction cups and is used to drive the second suction cups with opposite openings to move closer or further away from each other. The guide clamp is spaced above the second suction cups and extends towards the crank structure. The guide clamp has a guide channel, and the lower end of the guide channel communicates with the bag opening cavity.

[0012] Furthermore, the guide clamp includes a first guide piece and a second guide piece that are spaced apart; The first guide plate is vertically arranged, and the second guide plate gradually approaches the curved structure from bottom to top in the vertical direction, so that the inner diameter of the guide channel gradually increases from bottom to top.

[0013] Furthermore, the preheating sealing mechanism also includes a first support, a first slide rail, and a synchronous drive assembly; The first support is horizontally fixed on the frame, and the first slide rail is fixed on the upper surface of the first support. The extension direction of the first slide rail corresponds to the placement position in the pipe laying station. A pair of preheating sealing knives are arranged opposite to each other and positioned above the storage position of the preheating sealing station; the preheating sealing knives are slidably connected to the first slide rail via a first slider; The output of the synchronous drive component is connected to a pair of preheating sealing knives, and is used to drive the pair of preheating sealing knives to move synchronously closer or further away.

[0014] Furthermore, the synchronous drive assembly includes a drive motor, a rotating shaft, a drive handle, and a drive rod; The rotating shaft is vertically arranged and rotatably connected to the frame. The drive motor is connected to the frame, and the output end of the drive motor is fixedly connected to the rotating shaft for driving the rotating shaft to rotate around its own axis. The drive handle is coaxially arranged with the rotating shaft and fixed to the top of the rotating shaft. The two ends of the drive handle are respectively rotatably connected to the drive rods, and the end of the drive rod away from the drive handle is fixedly connected to the first slider.

[0015] Furthermore, the transition feeding mechanism includes a transition frame and a feeding assembly; The transition frame is fixed to the machine frame and located outside the loading turntable; the transition frame has a transition groove, and the extension direction of the transition groove corresponds to the loading position in the ejection station; The pushing assembly includes a pushing cylinder, a pushing component, a second support, a second slide rail, and a second slider; The second support is fixed on the frame, and the second slide rail is fixed on its upper surface. The second slide rail extends in the same direction as the transition groove. The pusher is located between the placement position in the ejection station and the placement turntable, and is located above the placement position. The pusher is slidably connected to the second slide rail through the second slider. The pusher cylinder is fixedly mounted on the second support, and the output end of the pusher cylinder is fixedly connected to the second slider.

[0016] Compared with the prior art, the pretreatment device for sealing tubes provided by this utility model has the following advantages: This utility model provides a pre-treatment device for sealing tubes, which includes a frame and a turntable, a straw feeding mechanism, a bag placing mechanism, a preheat sealing mechanism, and a transition pushing mechanism mounted on the frame. The four placement positions on the turntable correspond one-to-one with the straw placing position, bag placing position, preheat sealing position, and ejection position. This allows the turntable to sequentially complete the following processes: receiving straws from the outlet end of the straw feeding mechanism, receiving soft bags from the bag placing mechanism, heat sealing the straws and soft bags with a preheat sealing knife, and conveying them to the inlet end of the transition pushing mechanism. The transition pushing mechanism then ejects the preheat-sealed workpiece. This achieves straw and soft bag feeding, and the preheat sealing prevents relative movement between the straws and soft bags, separating the feeding process from multiple continuous heat sealing processes, thus improving production line efficiency. Furthermore, the independent setting of the feeding process and the turntable design save space. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a tube sealing pretreatment device according to an embodiment of the present utility model; Figure 2 This is a top view schematic diagram of a tube sealing pretreatment device according to an embodiment of the present utility model; Figure 3 yes Figure 2 Enlarged view of region A in the middle; Figure 4 yes Figure 2 Enlarged view of region B in the middle; Figure 5 yes Figure 2 Enlarged view of region C in the middle; Figure 6This is a three-dimensional structural diagram of the rotating tray in a tube sealing pretreatment device according to an embodiment of the present utility model; Figure 7 This is a front view schematic diagram of the suction tube storage component in a sealing tube pretreatment device according to an embodiment of this utility model; Figure 8 This is a left-side view of the bag-laying mechanism in a pre-treatment device for sealing tubes according to an embodiment of this utility model; Figure 9 This is a top view schematic diagram of the preheating sealing mechanism in a sealing tube pretreatment device according to an embodiment of this utility model; Figure 10 This is a three-dimensional structural diagram of the transition pushing mechanism in a sealing tube pretreatment device according to an embodiment of this utility model.

[0018] In the diagram, 100 is the pre-treatment device for sealing tubes; 1 is the frame; 2 is the turntable for placing items; 21 is the tray body; 22 is the storage component; 221 is the extension frame; 222 is the support plate; 223 is the bag protector frame; 2230 is the bag protector groove; 224 is the tube holding plate; 2240 is the tube holding groove; 3 is the straw feeding mechanism; 31 is the tube feeding assembly; 311 is the tube supply groove; 312 is the connecting groove; 3121 is the first connecting section; 3122 is the second connecting section; 313 is the guide groove; 32 is the tube feeding cylinder; 33 is the straw storage assembly; 331 is the straw hopper; 332 is the vibrating plate; 4 is the bag releasing mechanism; 41 is the soft bag hopper; 42 is the crank structure; 43 is the swing mechanism. 44. Cylinder; 44. Bag opening assembly; 441. Guide clamp; 4411. First guide plate; 4412. Second guide plate; 442. Second suction cup; 45. Moving cylinder; 46. First suction cup; 5. Preheat sealing mechanism; 51. Preheat sealing knife; 52. First support; 53. First slide rail; 54. Synchronous drive assembly; 541. Rotating shaft; 542. Drive handle; 543. Drive rod; 55. First slider; 6. Transition pushing mechanism; 61. Transition frame; 610. Transition groove; 62. Pushing assembly; 621. Pushing cylinder; 622. Pushing component; 623. Second support; 624. Second slide rail; 625. Second slider. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0020] like Figures 1-10 As shown, a pre-treatment device 100 for sealing tubes according to an embodiment of the present utility model includes a frame 1 and a turntable 2, a straw feeding mechanism 3, a bag placing mechanism 4, a preheating sealing mechanism 5, and a transition pushing mechanism 6 disposed on the frame 1. The frame 1 has a tube feeding station, a bag feeding station, a preheating and sealing station, and an ejection station arranged in a ring at uniform intervals. The turntable 2 is located at the center of the ring and is rotatably connected to the frame 1; the outer periphery of the turntable 2 has four placement positions, so that the placement positions correspond one-to-one with the tube placement position, bag placement position, preheat sealing position and ejection position. The straw feeding mechanism 3 is used to convey straws, and its discharge end is corresponding to the placement position in the straw feeding station; the bag feeding mechanism 4 is used to convey soft bags, and its discharge end is corresponding to the placement position in the bag feeding station; the preheat sealing mechanism 5 includes a preheat sealing knife 51, and the preheat sealing knife 51 is corresponding to the placement position in the preheat sealing station; the transition pushing mechanism 6 is used to output the workpiece, and its feeding end is corresponding to the placement position in the push-out station.

[0021] Based on the above technical solution, the four placement positions on the turntable 2 are corresponding one-to-one with the tube placement position, bag placement position, preheat sealing position, and ejection position. This allows the turntable 2 to sequentially complete the following processes: receiving straws from the outlet end of the straw feeding mechanism 3, receiving soft bags from the bag placement mechanism 4, heat sealing the straws and soft bags with the preheat sealing knife 51, and conveying them to the inlet end of the transition pushing mechanism 6. The transition pushing mechanism 6 then ejects the preheat-sealed workpiece. This achieves the feeding of straws and soft bags, and the preheat sealing prevents relative movement between the straws and soft bags, thus separating the feeding process from multiple continuous heat sealing processes, which improves the production line efficiency. Furthermore, the independent setting of the feeding process and the turntable 2 save space.

[0022] Furthermore, such as Figure 6 As shown, the turntable 2 includes a disc body 21 and a storage component 22; The disk body 21 is horizontally arranged and rotatably connected to the frame 1, and the four objects 22 are evenly spaced along the circumference of the disk body 21 and fixedly connected to the disk body 21. The storage component 22 extends along the axis opposite to the disc body 21, and the side of the storage component 22 opposite to the disc body 21 has at least one storage space, which defines the storage position.

[0023] It is understood that the storage component 22 is extended so that the storage position is located in the tube placement station, bag placement station, preheat sealing station, or ejection station; the storage component 22 has at least one storage space to form the storage position, or it may have more than one storage space to further improve production efficiency.

[0024] Furthermore, such as Figure 6 As shown, the storage component 22 includes an extension frame 221, a support plate 222, a protective bag frame 223, and a tube holding plate 224; The extension frame 221 extends along the axis opposite to the disk body 21 and is fixedly connected to the disk body 21; the extension direction of the extension frame 221 is defined as the first direction X, and the direction perpendicular to the first direction X on the horizontal plane is defined as the second direction Y. The extension frame 221 is fixedly provided with a support plate 222 extending along the second direction Y at one end away from the disk body 21; a plurality of tube holding plates 224 are fixedly provided at intervals along the second direction Y on the support plate 222 and extend along the first direction X. The tube holding plate 224 has a tube holding groove 2240, which penetrates the side surface and the top and bottom surfaces of the tube holding plate 224 facing away from the support plate 222; the tube holding plate 224 has a protective bag frame 223 on both sides in the first direction X, the protective bag frame 223 extends vertically and is detachably connected to the support plate 222, and a protective bag groove 2230 for inserting soft bags is opened on the opposite side of the two protective bag frames 223; The holding tube groove 2240 and the protective bag grooves 2230 on both sides of the first direction X together define the storage space.

[0025] It is understood that the extension frame 221 connects the support plate 222 and the tray body 21; the straw is held in the straw holding slot 2240 of the straw holding plate 224, and the bag protection slot 2230 of the bag protection frame 223 facilitates the insertion of soft bags. Thus, the straw holding slot 2240 and its corresponding bag protection slot 2230 jointly define a storage space for straws and soft bags, or a combination of both. Furthermore, the detachable connection between the bag protection frame 223 and the support plate 222 allows adjustment of the gap between the two opposing bag protection frames 223, thereby accommodating soft bags of different sizes.

[0026] Preferably, such as Figure 6 As shown, in this embodiment, two tube-holding plates 224 are fixedly mounted on the support plate 222 at intervals along the second direction Y, thereby forming two storage spaces and improving production efficiency. In some other embodiments, one or more tube-holding plates 224 may be provided, which will not be described in detail here.

[0027] Furthermore, such as Figures 1-3 As shown, the straw feeding mechanism 3 specifically implements the feeding of the straws; the straw feeding mechanism 3 includes a straw loading assembly 31 and a straw loading cylinder 32; The upper tube assembly 31 has a tube supply groove 311, a connecting groove 312 and a guide groove 313 connected in sequence for supplying the suction tube; The extension direction of the guide groove 313 corresponds to the placement position in the pipe laying station; The connecting groove 312 includes a first connecting segment 3121 and a second connecting segment 3122 that are connected and perpendicular to each other. The first connecting segment 3121 is connected to the guide groove 313 and is arranged in the same direction. The second connecting segment 3122 is connected to one end of the first connecting segment 3121 away from the guide groove 313, and the other end is connected to the supply pipe groove 311. The supply pipe groove 311 extends upward at an angle away from the second connecting segment 3122. The upper tube cylinder 32 is located at the end of the first connecting section 3121 away from the guide groove 313, and the output end of the upper tube cylinder 32 is spaced above the connecting groove 312.

[0028] It should be noted that the extension direction of the guide groove corresponds to the placement position in the pipe placement station, meaning that if the pipe holding groove 2240 extends along the first direction X, then the guide groove 313 also extends along the first direction X.

[0029] It is understandable that the inclined feeding groove 311 allows the straw to slide along the feeding groove 311 under its own weight and move to the connection position of the first connecting section 3121 and the second connecting section 3122. Then, the upper tube cylinder 32 located at the end of the first connecting section 3121 away from the guide groove 313 pushes the straw, thereby guiding it into the storage groove through the guide groove 313, thus realizing the feeding of the straw.

[0030] Furthermore, such as Figure 1 and Figure 2 As shown, the feeding slot 311 extends in a direction perpendicular to the first connecting section 3121 and is located on one side of the bag-dispensing mechanism 4. This allows the end of the feeding slot 311 away from the guide slot 313, i.e., the feeding end of the straw, to be located on one side of the bag-dispensing mechanism 4, thus enabling operators to dispense both straws and soft bags at the same workstation, thereby improving work efficiency.

[0031] Preferably, such as Figure 1 , Figure 2 and Figure 7 As shown, in order to facilitate the simultaneous feeding of multiple straws and ensure that the straws are in the correct vertical position when they are delivered to the placement position, the straw feeding mechanism 3 also includes a straw storage component 33, which includes a straw hopper 331 and a vibrating plate 332. The straw hopper 331 and the vibrating plate 332 are both mounted on the frame 1, and the straw hopper 331 is spaced above the vibrating plate 332, with the outlet of the straw hopper 331 correspondingly located above the inlet of the vibrating plate 332. The discharge port of the vibratory feeder 332 is connected to the end of the supply pipe groove 311 away from the connecting groove 312.

[0032] Furthermore, such as Figure 1 , Figure 2 , Figure 5 and Figure 8 As shown, the bag-laying mechanism 4 includes a soft bag hopper 41, a crank structure 42, a swing cylinder 43, a bag-opening assembly 44, and a moving cylinder 45, all mounted on the frame 1. The crank structure 42 is spaced below the outlet of the soft bag hopper 41 and can move up and down in the vertical direction; the crank structure 42 is equipped with a first suction cup 46 for adsorbing soft bags; the output end of the swing cylinder 43 is connected to the crank structure 42 and is used to drive the crank structure 42 to swing. The bag opening assembly 44 is provided between the crank structure 42 and the placement turntable 2. The bag opening assembly 44 includes a guide clamp 441 and at least one set of second suction cups 442 with opposite openings. There is a gap between the second suction cups 442 with opposite openings, and the gap is defined as the bag opening cavity. The bag opening cavity is located above the placement position of the bag placement station. The output end of the moving cylinder 45 is connected to the second suction cups 442 and is used to drive the second suction cups 442 with opposite openings to move closer or further away from each other. The guide clamp 441 is spaced above the second suction cups 442 and extends to the crank structure 42. The guide clamp 441 has a guide channel, and the lower end of the guide channel communicates with the bag opening cavity.

[0033] Understandably, the first suction cup 46 with adsorption function cooperates with the curved bar structure 42 that can move up and down in the vertical direction to adsorb the soft bag from the outlet of the soft bag hopper 41 and lower it; driven by the swing cylinder 43, the first suction cup 46 on the curved bar structure 42 is rotated, thereby causing the soft bag to rotate and enter the guide channel. The soft bag falls into the bag opening cavity and is adsorbed by the second suction cup 442; the moving cylinder 45 drives the second suction cup 442 to move away from each other, thereby opening the soft bag so that the soft bag is placed on the outer periphery of the straw.

[0034] Furthermore, such as Figure 1 , Figure 2 , Figure 5 and Figure 8 As shown, to facilitate the entry of the soft bag into the guide channel, the guide clip 441 includes a first guide piece 4411 and a second guide piece 4412 spaced apart. The first guide plate 4411 is vertically arranged, and the second guide plate 4412 gradually approaches the curved structure 42 from bottom to top in the vertical direction, so that the inner diameter of the guide channel gradually increases from bottom to top.

[0035] Furthermore, such as Figure 1 , Figure 2 and Figure 9 As shown, the preheating sealing mechanism 5 also includes a first support 52, a first slide rail 53, and a synchronous drive assembly 54; The first support 52 is horizontally fixed on the frame 1, and the first slide rail 53 is fixed on the upper surface of the first support 52. The extension direction of the first slide rail 53 corresponds to the placement position in the pipe laying station. A pair of preheating sealing knives 51 are arranged opposite to each other and positioned above the placement position of the preheating sealing station; the preheating sealing knives 51 are slidably connected to the first slide rail 53 via a first slider 55; The output of the synchronous drive component 54 is connected to a pair of preheating sealing knives 51, and is used to drive the pair of preheating sealing knives 51 to move closer or further away synchronously.

[0036] It is understandable that by driving the synchronous drive component 54, a pair of preheating sealing knives 51, both of which are slidably connected to the first slide rail 53, are driven to move closer synchronously, thereby heating the connection position of the straw and the soft bag to achieve heat sealing.

[0037] Furthermore, such as Figure 1 , Figure 2 and Figure 9 As shown, the synchronous drive assembly 54 drives a pair of preheating sealing knives 51 in a specific way; the synchronous drive assembly 54 includes a drive motor, a rotating shaft 541, a drive handle 542, and a drive rod 543; The rotating shaft 541 is vertically arranged and rotatably connected to the frame 1. The drive motor is connected to the frame 1. The output end of the drive motor is fixedly connected to the rotating shaft 541 and is used to drive the rotating shaft 541 to rotate around its own axis. The drive handle 542 is coaxially arranged with the rotating shaft 541 and fixed on the top of the rotating shaft 541. The two ends of the drive handle 542 are respectively rotatably connected to the drive rod 543, and the end of the drive rod 543 away from the drive handle 542 is fixedly connected to the first slider 55.

[0038] Furthermore, such as Figure 1 , Figure 2 , Figure 4 and Figure 10 As shown, the transition pushing mechanism 6 includes a transition frame 61 and a pushing assembly 62; The transition frame 61 is fixed on the frame 1 and located outside the turntable; the transition frame 61 has a transition groove 610, and the extension direction of the transition groove 610 corresponds to the placement position in the ejection station; The pushing assembly 62 includes a pushing cylinder 621, a pushing component 622, a second support 623, a second slide rail 624, and a second slider 625; The second support 623 is fixedly mounted on the frame 1, and the second slide rail 624 is fixedly mounted on its upper surface. The second slide rail 624 extends in the same direction as the transition groove 610. The pusher 622 is located between the placement position in the ejection station and the placement turntable 2, and is located above the placement position. The pusher 622 is slidably connected to the second slide rail 624 through the second slider 625. The pusher cylinder 621 is fixedly mounted on the second support 623, and the output end of the pusher cylinder 621 is fixedly connected to the second slider 625.

[0039] It is understood that the pusher cylinder 621 drives the second slider 625 to move, thereby driving the pusher 622 to move. The movement of the pusher 622 pushes the workpiece in the placement position in the ejection station, thereby pushing the workpiece into the transition groove 610, so as to facilitate the setting of other devices or through grooves to communicate with the transition groove 610 to eject the workpiece.

[0040] The working process of this utility model is as follows: (1) Feeding with straws The worker pours the straw into the straw hopper 331, opens the outlet of the straw hopper 331, and the straw falls into the vibrating plate 332. The vibrating plate 332 vibrates and transports the straw to the supply groove 311. The straw slides along the inclined supply groove 311 to the connection position of the first connecting section 3121 and the second connecting section 3122. The upper tube cylinder 32 is activated to push the straw at this position. The straw passes through the first connecting section 3121 and the guide groove 313 in sequence and is transported to the corresponding holding groove 2240.

[0041] (2) Soft bag covering The worker places stacked soft bags into the soft bag hopper 41. The crank structure 42 rises, and the first suction cup 46 adsorbs the soft bag. The crank structure 42 descends, causing the first suction cup 46 to descend and remove the soft bag from the soft bag hopper 41. The swing cylinder 43 is activated to drive the crank structure 42 to rotate, causing the soft bag adsorbed by the first suction cup 46 to turn towards the guide clamp 441 and enter the guide channel. The soft bag falls into the bag opening cavity and is adsorbed by the second suction cup 442. The moving cylinder 45 drives the second suction cup 442 to move away from each other, thereby opening the soft bag and placing it around the periphery of the straw.

[0042] (3) Preheating and sealing The drive motor drives the rotating shaft 541 to rotate around its own axis, thereby driving the drive 542 to rotate, so as to synchronously drive the drive rods 543 at both ends of the drive handle 542 to bring the pair of preheating sealing knives 51 closer together, thereby heating the connection position of the straw and the soft bag to achieve heat sealing.

[0043] (4) Launch The pusher cylinder 621 drives the second slider 625 to move, which in turn drives the pusher 622 to move. The movement of the pusher 622 pushes the workpiece in the placement position in the ejection station, thereby pushing the workpiece in the holding tube groove 2240 into the transition groove 610.

[0044] In summary, this utility model embodiment provides a sealing tube pretreatment device 100, which includes a frame 1 and a placement turntable 2, a straw feeding mechanism 3, a bag placement mechanism 4, a preheat sealing mechanism 5, and a transition pushing mechanism 6 mounted on the frame 1. The four placement positions on the placement turntable 2 are corresponding one-to-one with the straw placement position, bag placement position, preheat sealing position, and push-out position, so that the rotation of the placement turntable 2 sequentially completes the straw feeding at the outlet end of the straw feeding mechanism 3 and the bag placement mechanism. The soft bag 4 and the preheat sealing knife 51 heat seal the straw and soft bag and convey them to the feeding end of the transition pushing mechanism 6. The transition pushing mechanism 6 pushes out the workpiece that has completed the preheat sealing process. This realizes the feeding of straws and soft bags. The preheat sealing prevents the straws and soft bags from moving relative to each other, so as to separate the feeding process from multiple continuous heat sealing processes, which is conducive to improving the production efficiency of the production line. Moreover, the independent setting of the feeding process and the turntable setting of the placement turntable 2 can save a certain amount of space.

[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A pre-treatment device for sealing tubes, characterized in that, It includes a frame and a turntable for placing items, a straw feeding mechanism, a bag placing mechanism, a preheat sealing mechanism, and a transition pushing mechanism mounted on the frame; The frame has a tube feeding station, a bag feeding station, a preheating and sealing station, and an ejection station arranged in a ring at even intervals. The turntable is located at the center of the ring and is rotatably connected to the frame; the outer periphery of the turntable has four placement positions, so that the placement positions correspond one-to-one with the tube placement position, bag placement position, preheat sealing position and ejection position. The straw feeding mechanism is used to convey straws, and its discharge end is corresponding to the placement position in the straw feeding station; the bag feeding mechanism is used to convey soft bags, and its discharge end is corresponding to the placement position in the bag feeding station; the preheat sealing mechanism includes a preheat sealing knife, and the preheat sealing knife is corresponding to the placement position in the preheat sealing station; the transition pushing mechanism is used to output the workpiece, and its feed end is corresponding to the placement position in the push-out station.

2. The pre-treatment device for sealing tubes as described in claim 1, characterized in that, The rotating display tray includes a tray body and a display element; The disk body is horizontally arranged and rotatably connected to the frame, and the four placement components are evenly spaced along the circumference of the disk body and fixedly connected to the disk body; The storage component extends along an axis opposite to the disc body, and the side of the storage component opposite to the disc body has at least one storage space, the at least one storage space defining the storage position.

3. The pre-treatment device for sealing tubes as described in claim 2, characterized in that, The storage unit includes an extension rack, a support plate, a protective bag rack, and a tube holding plate; The extension frame extends along the axis opposite to the disk body and is fixedly connected to the disk body; the extension direction of the extension frame is defined as the first direction, and the direction perpendicular to the first direction on the horizontal plane is defined as the second direction; The extension frame is fixedly provided with a support plate extending in the second direction at one end away from the disk body; a plurality of tube holding plates are fixedly provided at intervals along the second direction to the support plate and extend in the first direction. The tube holding plate has a tube holding groove that penetrates the side surface and the top and bottom surfaces of the tube holding plate facing away from the support plate. The tube holding plate has a protective bag frame on each side in the first direction. The protective bag frame extends vertically and is detachably connected to the support plate. Each of the two protective bag frames has a protective bag groove on the opposite side for inserting a soft bag. The tube-holding groove and the protective bag grooves on both sides in the first direction together define the storage space.

4. The pretreatment device for sealing tubes as described in claim 1, characterized in that, The straw feeding mechanism includes a straw loading assembly and a straw loading cylinder; The upper tube assembly has a tube supply groove, a connecting groove and a guide groove that are connected in sequence for supplying the suction tube; The extension direction of the guide groove corresponds to the placement position in the pipe laying station; The connecting groove includes a first connecting section and a second connecting section that are connected and perpendicular to each other. The first connecting section is connected to the guide groove and is arranged in the same direction. The second connecting section is connected to one end of the first connecting section away from the guide groove, and the other end is connected to the supply pipe groove. The supply pipe groove extends upward at an angle away from the second connecting section. The upper tube cylinder is located at the end of the first connecting section away from the guide groove, and the output end of the upper tube cylinder is spaced above the connecting groove.

5. The pre-treatment device for sealing tubes as described in claim 4, characterized in that, The supply pipe groove extends in a direction perpendicular to the first connecting section and is located on one side of the bag-dispensing mechanism.

6. The pretreatment device for sealing tubes as described in claim 1, characterized in that, The bag-dispensing mechanism includes a soft bag hopper, a crank structure, a swing cylinder, a bag-opening assembly, and a moving cylinder, all mounted on the frame. The crank structure is spaced below the outlet of the soft bag hopper; the crank structure is equipped with a first suction cup for adsorbing the soft bag; the output end of the swing cylinder is connected to the crank structure for driving the crank structure to swing. The bag opening assembly is provided between the crank structure and the turntable. The bag opening assembly includes a guide clamp and at least one set of second suction cups with opposite openings. There is a gap between the second suction cups with opposite openings, and the gap is defined as the bag opening cavity. The bag opening cavity is located above the placement position of the bag placement station. The output end of the moving cylinder is connected to the second suction cups and is used to drive the second suction cups with opposite openings to move closer or further away from each other. The guide clamp is spaced above the second suction cups and extends towards the crank structure. The guide clamp has a guide channel, and the lower end of the guide channel communicates with the bag opening cavity.

7. The pre-treatment device for sealing tubes as described in claim 6, characterized in that, The guide clamp includes a first guide piece and a second guide piece that are spaced apart; The first guide plate is vertically arranged, and the second guide plate gradually approaches the curved structure from bottom to top in the vertical direction, so that the inner diameter of the guide channel gradually increases from bottom to top.

8. The pretreatment device for sealing tubes as described in claim 1, characterized in that, The preheating sealing mechanism also includes a first support, a first slide rail, and a synchronous drive assembly; The first support is horizontally fixed on the frame, and the first slide rail is fixed on the upper surface of the first support. The extension direction of the first slide rail corresponds to the placement position in the pipe laying station. A pair of preheating sealing knives are arranged opposite to each other and positioned above the storage position of the preheating sealing station; the preheating sealing knives are slidably connected to the first slide rail via a first slider; The output of the synchronous drive component is connected to a pair of preheating sealing knives, and is used to drive the pair of preheating sealing knives to move synchronously closer or further away.

9. The pretreatment device for sealing tubes as described in claim 8, characterized in that, The synchronous drive assembly includes a drive motor, a rotating shaft, a drive handle, and a drive rod; The rotating shaft is vertically arranged and rotatably connected to the frame. The drive motor is connected to the frame, and the output end of the drive motor is fixedly connected to the rotating shaft for driving the rotating shaft to rotate around its own axis. The drive handle is coaxially arranged with the rotating shaft and fixed to the top of the rotating shaft. The two ends of the drive handle are respectively rotatably connected to the drive rods, and the end of the drive rod away from the drive handle is fixedly connected to the first slider.

10. The pretreatment device for sealing tubes as described in claim 1, characterized in that, The transition feeding mechanism includes a transition frame and a feeding assembly; The transition frame is fixed to the machine frame and located outside the loading turntable; the transition frame has a transition groove, and the extension direction of the transition groove corresponds to the loading position in the ejection station; The pushing assembly includes a pushing cylinder, a pushing component, a second support, a second slide rail, and a second slider; The second support is fixed on the frame, and the second slide rail is fixed on its upper surface. The second slide rail extends in the same direction as the transition groove. The pusher is located between the placement position in the ejection station and the placement turntable, and is located above the placement position. The pusher is slidably connected to the second slide rail through the second slider. The pusher cylinder is fixedly mounted on the second support, and the output end of the pusher cylinder is fixedly connected to the second slider.

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