Top sealing device

Abstract

The invention provides a top sealing device. The top sealing device comprises a support structure and a top sealing module. The top sealing module is installed on the support structure in a sliding mode. A moving structure is connected between the top sealing module and the support structure and drives the top sealing module to slide relative to the support structure. The moving structure comprises a driving motor and a crank sliding block transmission mechanism; the driving motor is mounted on the bracket structure; the input end of the crank sliding block transmission mechanism is connected with the power output end of the driving motor, the output end of the driving sliding block transmission mechanism is connected with the top sealing module, and output power of the driving motor is used for driving the top sealing module to slide. According to the top sealing device, through the device, the driving motor and the sliding face can be located at different heights through the crank sliding block transmission mechanism, then the arrangement diversity of the top sealing device is greatly improved, and particularly the horizontal length size of the top sealing device can be reduced.

Description

Technical Field

[0001] The invention relates to the field of packaging equipment, and in particular to a top sealing device for sealing a medicine bag opening. Background Art

[0002] The sealing operation process of existing packaging medicine bags is generally to prefabricate the materials to obtain a medicine bag with an open top, then fill the medicine bag with liquid medicine, and finally seal the top opening of the filled medicine bag. The top sealing module for sealing the top opening of the medicine bag is generally as follows: it includes a top sealing mold and a stress-bearing hot pressing plate arranged relatively to each other, so that the top opening of the medicine bag is in the top sealing gap between the top sealing mold and the stress-bearing hot pressing plate when the top sealing module is moved to a set position, and then the top sealing mold and the stress-bearing hot pressing plate are moved toward each other to squeeze the top opening of the medicine bag, and the heat generated by the heating component provided on the top sealing mold is used to perform a thermoplastic sealing connection on the squeezed top opening of the medicine bag, thereby achieving the effect of sealing the top opening of the medicine bag.

[0003] However, the top-sealing module composed of the top-sealing mold and the stressed hot pressing plate in the existing top-sealing device slides relative to the medicine bag, and generally uses a linear transmission structure such as a gear rack structure, a screw structure, and a pressure cylinder structure to directly transmit the power of the driving motor to the top-sealing module. Although the power transmission of the above-mentioned linear transmission structure is relatively direct, it is not suitable for the arrangement scheme in which the driving motor and the top-sealing modules such as the top-sealing mold and the stressed hot pressing plate are at different heights, especially not suitable for the top-sealing device for sealing the medicine bag conveyed from the bottom to the top, and it will also increase the overall horizontal size of the top-sealing device, thereby causing the top-sealing device to occupy too much space.

[0004] In addition, the existing top sealing devices are generally only capable of clamping and sealing a single bag opening, and are not capable of sealing multiple bag openings simultaneously.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a top sealing device to achieve the purpose of automatically closing the top of a conveyed medicine bag; at the same time, the present invention provides a top sealing device to achieve the purpose of overall sliding driving of the top sealing module by driving motors at different heights.

[0007] In order to achieve the above-mentioned invention object, the basic concept of the technical solution adopted by the present invention is:

[0008] The present invention provides a top sealing device, which comprises: a support structure and a top sealing module; the top sealing module is slidably installed on the support structure; a moving structure is connected between the top sealing module and the support structure, and the moving structure drives the top sealing module to slide relative to the support structure; the moving structure comprises a driving motor and a crank slider transmission mechanism; the driving motor is installed on the support structure; the input end of the crank slider transmission mechanism is connected to the power output end of the driving motor, and the output end of the driving slider transmission mechanism is connected to the top sealing module, and the output power of the driving motor is used to drive the top sealing module to slide.

[0009] Furthermore, the crank slider transmission mechanism includes a crank rod, a first end of which is fixedly connected to the power output end of the drive motor; a sliding groove, which is arranged on the top sealing module, and an extension direction of the sliding groove is perpendicular to the sliding direction of the top sealing module; a pulley is installed on the second end of the crank rod, and the pulley extends into the sliding groove.

[0010] Furthermore, the support structure is provided with a guide rail extending in the horizontal direction, and the top sealing module is provided with a slider corresponding to the guide rail; the top sealing module is provided with a sliding groove, which extends in the vertical direction, and the sliding groove is used for the output end of the crank slider transmission mechanism of the movable structure to be relatively slidably plugged in.

[0011] Furthermore, a sensor is provided on the support structure, and the sensor has a probe that emits a detection signal vertically downward; a detected part is provided on the top sealing module, and the detected part is arranged below the sensor on the moving path of the top sealing module, so that after the top sealing module moves to a set position, the detection signal emitted by the sensor is reflected by the detected part and received by the sensor to generate a position detection signal.

[0012] Further, the support structure includes a cover body covering the top sealing module, and guide rails are respectively provided on opposite sides of the cover body, and the guide rails are arranged at the bottom of the cover body; one side wall of the cover body provided with the guide rail is a first side wall; the outer wall surface of the first side wall is provided with two sensors protruding outward, and the two sensors are arranged at intervals along the extension direction of the guide rail; the top sealing module is provided with a structural member located below the cover body and protruding outward; a part of the structural member constitutes the detected part, and the detected part is located on the outside of the first side wall and at least partially overlaps with the sensor up and down; preferably, the two sensors are respectively arranged at opposite ends of the first side wall.

[0013] Furthermore, two baffles protruding and extending downward are provided on the lower side of the top sealing module, and the two baffles are arranged at intervals along the extension direction of the guide rail, and the gap between the two baffles constitutes the sliding groove; a pulley is provided at the output end of the crank slider transmission mechanism, and the pulley is inserted into the sliding groove, and the outer peripheral surface of the pulley is slidingly connected with the opposite sides of the two baffles; the lower ends of the two baffles are connected via the connecting plate, which is used to seal the lower end of the sliding groove.

[0014] Furthermore, the top sealing module includes a sliding base plate, and the opposite sides of the sliding base plate are respectively provided with sliding blocks protruding outward, and the sliding blocks are correspondingly inserted into the guide rails on the support structure; an active side component and a passive side component are relatively arranged on the sliding base plate, and are used to thermally seal the top of the medicine bag extending into the gap between the two; and a motor module, and the output end of the motor module is connected to the active side component through a transmission gear set, and is used to drive the active side component to approach or move away from the passive side component.

[0015] Furthermore, the active side component includes a fixed plate, which can be relatively slidably installed on the sliding bottom plate, and a top sealing mold is installed on the side of the fixed plate facing the passive side component; a heating tube is provided in the top sealing mold; and an insulation plate is provided between the top sealing mold and the fixed plate.

[0016] Furthermore, the passive side component includes a stress-bearing hot pressure plate, which is fixedly mounted on the sliding bottom plate and arranged opposite to the top sealing mold; a heat sealing distance adjustment plate is provided on the side of the stress-bearing hot pressure plate facing the active side component, and the heat sealing distance adjustment plate is installed on the stress-bearing hot pressure plate via an elastic member, and a side of the heat sealing distance adjustment plate facing the active side component is a mating contact surface, and the mating contact surface is matingly fitted with the top sealing mold.

[0017] Preferably, a top-seal bag guide structure extending vertically downward is provided on the lower side of the fixed plate, and the top-seal bag guide structure and a portion of the top-seal mold facing the passive side component are in the same vertical plane.

[0018] Furthermore, at least two groups of active side components and passive side components are arranged in sequence on the lower side of the sliding base plate; the transmission gear group includes meshing racks and gears; the rack is fixedly connected to each active component, and the gear is fixedly connected to the output end of the motor module; the rack extends along the direction in which the active side component and the passive side component approach or move away from each other, and the upper side of the rack is provided with meshing teeth arranged along the extension direction; the axis of the gear is perpendicular to the extension direction of the rack, and the outer periphery of the gear is arranged with mating meshing teeth, and the mating meshing teeth are meshed with the meshing teeth.

[0019] Furthermore, the heat sealing distance adjustment plate extends in the horizontal direction, and the extension direction of the heat sealing distance adjustment plate is arranged perpendicular to the sliding direction of the active side component; the heat sealing distance adjustment plate is connected to the stress-bearing hot pressure plate via at least one spring, and the extension direction of the spring is arranged parallel to the sliding direction of the active side component; preferably, the heat sealing distance adjustment plate is connected to the stress-bearing hot pressure plate via a plurality of springs arranged at intervals; further preferably, the heat sealing distance adjustment plate is connected to the stress-bearing hot pressure plate via a spring at both ends and the middle of the horizontal extension direction respectively.

[0020] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0021] Through the above-mentioned device, the present invention enables the driving motors located at different heights to utilize the crank slider transmission structure to realize power transmission, thereby achieving the effect of sliding drive of the top sealing modules arranged in planes at different heights, thereby greatly improving the arrangement diversity of the top sealing device, and especially reducing the horizontal length of the top sealing device.

[0022] In addition, the existing top-sealing module, whether it is a sealing drive mode in which both the top-sealing mold and the stressed hot-pressing plate are active components, or an active and a passive component, has the problem that the two sides of the medicine bag opening cannot be effectively aligned, and thus cannot be effectively sealed. The present application sets a heat-sealing distance adjustment plate connected by an elastic member on the passive side component, so that when the medicine bag opening is squeezed by the active side component and the passive side component moving close to each other on one side, the elastic displacement margin generated by the heat-sealing distance adjustment plate is used to elastically stretch and fit the medicine bag opening, so that the bag opening is pressed tightly and then clamped, so that the bag opening is unfolded and aligned and clamped between the top-sealing mold and the stressed hot-pressing plate, avoiding wrinkles and folds when the bag opening is heat-sealed, thereby significantly improving the sealing effect of the bag opening after the top-sealing device performs heat-sealing treatment.

[0023] At the same time, the invention has a simple structure, significant effects and is suitable for popularization and use.

[0024] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0026] Figures 1 to 4 1 is a schematic structural diagram of a top sealing device in different viewing angles according to an embodiment of the present invention;

[0027] Figures 5 to 8 Schematic diagram of the structure of the top sealing module from different perspectives in an embodiment of the present invention.

[0028] Description of the main components in the figure:

[0029] 100, support structure; 200, top sealing module; 300, mobile structure; 101, cover; 102, lower support plate; 103, upper support plate; 104, support column; 105, connecting plate; 106, support; 201, sliding bottom plate; 202, active side component; 2021, fixed plate; 2022, top sealing mold; 2023, heating pipe; 2024, insulation board; 2025, top sealing guide bag structure; 2026, temperature sensor; 203, passive side component; 2031, stress hot pressing plate; 20 32. heat-sealing distance adjustment plate; 2033. elastic member; 204. motor module; 2041. motor mounting plate; 205. transmission gear set; 2051. rack; 2052. gear; 206. buffer structure; 207. clamping detection sensor; 208. detected structural member; 301. driving motor; 302. crank rod; 303. sliding groove; 3031. baffle; 3032. connecting plate; 304. pulley; 305. guide rail; 306. slider; 307. sensor; 308. detected part.

[0030] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0032] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] A top-sealing device is introduced in an embodiment of the present invention. The top-sealing device is applied to a medicine bag packaging line. The medicine bags on the medicine bag packaging line that have been filled with medicine are transported to the top-sealing device. The top-sealing device performs a top opening sealing operation on the transported filled medicine bags to complete the final filled medicine bag preparation process.

[0035] like Figures 1 to 8 In the embodiment of the present invention, a top sealing device is introduced, which includes: a support structure 100 and a top sealing module 200; the top sealing module 200 is slidably mounted on the support structure 100; a moving structure 300 is connected between the top sealing module 200 and the support structure 100, and the moving structure 300 drives the top sealing module 200 to slide relative to the support structure 100, so that the overall position of the top sealing module slides relatively, and then the top opening of the medicine bag slides relatively into or out of the closed gap of the top sealing module. At the same time, in the embodiment of the present invention, the moving structure includes a driving motor 301 and a crank slider transmission mechanism; the driving motor 301 is mounted on the support structure 100; the input end of the crank slider transmission mechanism is connected to the power output end of the driving motor 301, and the output end of the driving slider transmission mechanism is connected to the top sealing module 200, and the output power of the driving motor 301 is used to drive the top sealing module 200 to slide. Through the above arrangement, the driving motor 301 located at different heights can utilize the crank slider transmission structure to realize power transmission, thereby realizing the effect of sliding drive of the top sealing module 200 set in different height planes, thereby greatly improving the arrangement diversity of the top sealing device, especially reducing the horizontal length of the top sealing device.

[0036] In the embodiment of the present invention, the crank slider transmission mechanism includes a crank rod 302, the first end of which is fixedly connected to the power output end of the driving motor 301; a sliding groove 303, which is arranged on the top sealing module 200, and the extending direction of the sliding groove 303 is perpendicular to the sliding direction of the top sealing module 200; and a pulley 304 is installed on the second end of the crank rod 302, and the pulley 304 extends into the sliding groove 303. When it is necessary to drive the top sealing module 200 to slide horizontally, the driving motor 301 needs to generate a first circumferential rotation to drive the second end of the crank rod 302 to swing toward the direction of approaching the medicine bag, and the pulley 304 with the second end arranged in the sliding groove 303 will drive the top sealing module 200 to slide horizontally in the direction of approaching the medicine bag, so as to achieve the effect of extending the opening of the medicine bag into the top sealing gap of the top sealing module 200, thereby sealing the top bag opening of the medicine bag. At the same time, the pulley 304 inserted into the sliding groove 303 will move upward along the sliding groove 303, and then the sliding between the pulley 304 and the sliding groove 303 will reduce the jamming between the two, thereby improving the transmission efficiency of the crank slider transmission mechanism and effectively reducing the sliding difficulty of the top sealing module 200. In addition, after the top sealing action is completed, it is necessary to drive the top sealing module 200 to slide in the reverse direction so that the top sealing module 200 and the medicine bag are staggered. At this time, it is necessary to control the driving motor 301 to generate a second circumferential rotation to drive the second end of the crank rod 302 to swing away from the medicine bag, and the pulley 304 with the second end set in the sliding groove 303 will drive the top sealing module 200 to slide horizontally in the direction away from the medicine bag.

[0037] In an embodiment of the present invention, the support structure 100 includes an upper support plate 103 and a lower support plate 102 which are arranged up and down and extend horizontally respectively. The upper support plate 103 and the lower support plate 102 are connected via a plurality of support columns 104 extending vertically up and down. A cover body 101 is fixedly installed on the upper support plate 103, and a top sealing module 200 which can slide relatively horizontally is arranged in the cover body 101; the lower support plate 102 and the upper support plate 103 are connected on the same side via a vertically extending connecting plate 105, and a driving motor 301 is fixedly installed on the side of the connecting plate 105 facing away from the upper and lower support plates; the cover body 101 is fixedly installed on the side of the upper support plate 103 connected to the connecting plate 105, and a top sealing module 200 which can slide relatively horizontally is installed in the cover body 101. At the same time, in order to improve the installation stability of the cover body, a support column 104 extending vertically upward is respectively provided on the upper support plate 103 on the opposite sides of the cover body 101. The upper ends of the two support columns 104 are respectively fixedly connected to the opposite side walls of the cover body 101 through the supports 106 to provide the cover body 101 with pulling support force in two relative directions.

[0038] In the embodiment of the present invention, the support structure 100 is provided with a guide rail 305 extending in the horizontal direction, and the top sealing module 200 is provided with a slider 306 correspondingly inserted into the guide rail 305; the top sealing module 200 is provided with a sliding groove 303, which extends in the vertical direction, and the sliding groove 303 is provided for the pulley 304 provided at the second end of the crank slider transmission mechanism of the mobile structure 300 to be relatively slidably inserted. By respectively providing the matching guide rail 305 and slider 306 on the support structure 100 and the top sealing module 200, the entire top sealing module 200 can achieve the effect of horizontal sliding relative to the support structure 100 along the extension direction of the guide rail 305, thereby greatly improving the smoothness of the overall horizontal sliding displacement of the top sealing module 200.

[0039] In an embodiment of the present invention, a sensor 307 is provided on the support structure 100, and the sensor 307 has a probe that emits a detection signal vertically downward; a detected portion 308 is provided on the top sealing module 200, and the detected portion 308 is arranged below the sensor 307 on the moving path of the top sealing module 200. After the top sealing module 200 moves to a set position, the detection signal emitted by the sensor 307 is reflected by the detected portion 308 and received by the sensor 307, thereby causing the sensor 307 to generate a position detection signal, indicating that the top sealing module 200 has moved into place.

[0040] In the embodiment of the present invention, the support structure 100 includes a cover body 101 covering the top sealing module 200, and the cover body 101 is an inverted strip shape, and the strip cover body 101 is a structure with an opening at one end and an open bottom; the open end side of the strip cover body 101 is arranged toward the opening of the medicine bag, so that the top sealing module 200 can slide out and the medicine bag opening can slide into the top sealing gap correspondingly; guide rails 305 are respectively provided on the opposite sides of the cover body 101, and the guide rails 305 are arranged at the bottom of the cover body 101; one side wall of the cover body 101 provided with the guide rails 305 is the first side wall; the outer wall surface of the first side wall is provided with two sensors 307 protruding outward, and the two sensors 307 are arranged at intervals along the extension direction of the guide rails 305; the top sealing module 200 is provided with a cover body 101, a structural member protruding outward below the cover body 101; the portion of the structural member protruding from the cover body 101 constitutes a detected portion 308, the detected portion 308 is located on the outside of the first side wall, and at least partially overlaps with the sensor 307 up and down; preferably, the two sensors 307 are respectively arranged at the opposite ends of the first side wall, so that when the top sealing module 200 slides outward to the top sealing position where the opening of the medicine bag slides into the top sealing gap, and when the top sealing module 200 is returned inward to the storage position inside the cover body 101, the detected portion 308 is respectively opposed by the sensors 307 arranged at the two ends, and then respectively generates an in-position signal that the top sealing module 200 slides to the top sealing position or the storage position, thereby achieving the effect of monitoring the relative sliding of the top sealing module 200 to the position.

[0041] In the embodiment of the present invention, two baffles 3031 protruding and extending downward are provided on the lower side of the top sealing module 200, and the two baffles 3031 are arranged at intervals along the extension direction of the guide rail 305, and the gap between the two baffles 3031 constitutes a sliding groove 303; the second end of the crank rod 302 of the crank slider transmission mechanism is provided with a pulley 304, and the pulley 304 is inserted into the sliding groove 303, and the outer peripheral surface of the pulley 304 is slidably connected with the opposite sides of the two baffles 3031; the lower ends of the two baffles 3031 are connected via a connecting plate 3032, which is used to seal the lower end of the sliding groove 303 to prevent the pulley 304 from falling off from the sliding groove 303.

[0042] In the embodiment of the present invention, the top sealing module 200 includes a sliding base plate 201, and two opposite sides of the sliding base plate 201 are respectively provided with sliders 306 protruding outward, and the sliders 306 are correspondingly inserted into the guide rails 305 on the bracket structure 100; the other two opposite sides of the sliding base plate 201 are respectively installed with a motor module 204 and a buffer structure 206, the motor module 204 is used to drive the active side component 202 to move closer to or away from the passive side component 203, the contact point of the buffer structure 206 protrudes outward from the sliding base plate 201 and is arranged at the same height relative to the cover body 101, and at least the contact part of the buffer structure 206 is composed of an elastic material that can provide buffering elastic force, so that when the sliding base plate 201 is stored and moved into the cover body 101, the buffer structure 206 is used to provide a buffering force when it contacts the closed side of the cover body 101, so as to avoid excessive contact between the sliding base plate 201 and the cover body; optionally, the buffer structure A proximity switch or a contact switch is provided at 206 to generate a trigger signal when the buffer structure 206 is close to or in contact with the closed side of the cover body 101, and the trigger signal is used to control the motor module 204 to stop working, so as to avoid the top sealing module 200 from excessively moving inward and causing damage to the cover body 101 or the top sealing module 200; the active side component 202 and the passive side component 203 are relatively arranged on the sliding bottom plate 201, generally arranged below the sliding bottom plate 201, and the gap between the two constitutes a closed top sealing gap for the opening of the medicine bag to slide into, which is used for the opening of the medicine bag to extend into or slide out of the above-mentioned top sealing gap after the top sealing module is horizontally slid and displaced, so as to realize the thermal sealing of the top of the medicine bag by using the top sealing module; the motor module 204, the output end of the motor module 204 is connected to the active side component 202 through the transmission gear set 205, and is used to drive the active side component 202 to approach or move away from the passive side component 203.

[0043] In an embodiment of the present invention, the active side component 202 includes a fixed plate 2021, which can be relatively slidably installed on the sliding bottom plate 201, and a top sealing mold 2022 is installed on the side of the fixed plate 2021 facing the passive side component 203; a heating tube 2023 is provided in the top sealing mold 2022; a heat insulation plate 2024 is provided between the top sealing mold 2022 and the fixed plate 2021; the top sealing mold 2022 is generally set to a heat-conductive metal material to improve the problem of the top sealing mold and improve the reliability of the heat sealing treatment; at the same time, by utilizing the above structure, the heat generated by the heating tube 2023 will be transferred to the top sealing mold 2022, so that the top sealing mold 2022 forms a heating surface facing the passive side component 203, so as to perform heat sealing treatment on the opening of the medicine bag clamped in the top sealing gap. Preferably, in order to prevent the top-sealing mold 2022 from overheating, a temperature sensor 2026 may be provided in the top-sealing mold 2022 , and the temperature sensor 2026 is used to detect the temperature of the top-sealing mold 2022 in real time.

[0044] In an embodiment of the present invention, the passive side component 203 includes a stress-bearing hot pressure plate 2031, which is fixedly mounted on the sliding bottom plate 201 and arranged opposite to the top sealing mold 2022; the stress-bearing hot pressure plate 2031 is provided with a heat sealing distance adjustment plate 2032 on the side facing the active side component 202, and the heat sealing distance adjustment plate 2032 is installed on the stress-bearing hot pressure plate 2031 via an elastic member 2033, and the side of the heat sealing distance adjustment plate 2032 facing the active side component 202 is a mating contact surface, and the mating contact surface is mated and fit with the side of the top sealing mold 202 facing the passive component.

[0045] In the embodiment of the present invention, a top-seal bag guide structure 2025 extending vertically downward is provided on the lower side of the fixed plate 2021, and the top-seal bag guide structure 2025 and the portion of the top-seal mold 2022 facing the passive side component 203 are in the same vertical plane, or the top-seal bag guide structure 2025 is further inclined away from the passive side component 203. The top-seal bag guide structure 2025 is lower than the passive side component 203, so that when the top-seal module as a whole slides toward the medicine bag, the opening of the medicine bag can smoothly enter the above-mentioned top-seal gap. By arranging a top-sealing guide bag structure 2025 below the fixed plate 2021, the downwardly protruding top-sealing guide bag structure 2025 is used to guide the opening of the medicine bag, so that the opening of the medicine bag can be smoothly guided to the top-sealing gap between the active side component 202 and the passive side component 203 during the horizontal sliding process of the top-sealing module; in addition, by arranging a top-sealing guide bag structure 2025 below the active side component 202, the top-sealing guide bag structure 2025 can provide a horizontal restraining force on the lower part of the bag opening of the medicine bag, so that the opening of the medicine bag is horizontally pushed by the top-sealing guide bag structure 2025 to achieve a restraining effect, so that the bag opening can be aligned and flattened by the active side component 202 and the passive side component 203 to tighten and clamp, thereby effectively preventing wrinkles and folds from occurring during the heat sealing process of the bag opening.

[0046] In the embodiment of the present invention, at least two groups of active side components 202 and passive side components 203 are arranged in sequence on the lower side of the sliding bottom plate 201; each active side component 202 is connected to the same motor module 204 via the same set of transmission gear sets 205, so that the output power generated by the motor module 204 can synchronously drive each active side component 202 to move, thereby achieving the effect that the top sealing module can synchronously perform the top sealing process on multiple open medicine bags, thereby greatly improving the medicine bag top sealing packaging efficiency. In order to achieve the installation of the motor module 204, a motor mounting plate 2041 extending vertically upward is provided on the sliding bottom plate 201, and a horizontally arranged motor module 204 is installed on the motor mounting plate 2041, and the motor shaft of the motor module is horizontally arranged and supported through the motor mounting plate 2041.

[0047] In the embodiment of the present invention, the transmission gear set 205 includes a meshing rack 2051 and a gear 2052; the rack 2051 is fixedly connected to each active side component 202, and the gear 2052 is fixedly connected to the output end of the motor module 204; the rack 2051 extends in the direction of approaching or moving away from the active side component 202 and the passive side component 203, and the upper side of the rack 2051 is provided with meshing teeth arranged along the extension direction; the axis of the gear 2052 is perpendicular to the extension direction of the rack 2051, and the outer periphery of the gear 2052 is arranged with matching meshing teeth, and the matching meshing teeth are meshed with each other. Through the arrangement of the above-mentioned gear rack structure, multiple active side components 202 can slide synchronously with the rack, so that multiple sets of top sealing components can synchronously perform top sealing processing procedures on the top opening of the medicine bag respectively.

[0048] like Figure 8 As shown, in the embodiment of the present invention, in order to detect the relative position between the active side component and the passive side component, a sensor is arranged between the two, which is used to detect the relative sliding between the active side component and the passive side component; the method that can be adopted can be, for example, as follows: a clamping detection sensor 207 is fixedly installed on the upper side of the sliding base plate 201, and the clamping detection sensor 207 has a probe that emits a detection signal outward, and the radiation direction of the probe of the clamping detection sensor 207 can be horizontally extended perpendicular to the extension direction of the rack 2051, and the clamping detection sensor 207 is located on one side of the extension direction of the rack; at the same time, A detected structural member 208 protruding outward along the extension direction of the rack is provided on one side of the rack. The detected structural member 208 is fixedly connected to the rack and the fixed plate so as to generate horizontal movement together with the active side component, and the detected structural member 208 and the clamping detection sensor 207 are at the same horizontal height, so that when the active side component moves to the clamping position where it connects with the passive side component, the emission directions of the probes of the detected structural member 208 and the clamping detection sensor 207 coincide, so that the emission signal of the clamping detection sensor 207 can be emitted through the detected structural member 208 to trigger the generation of an in-place signal that the active side component 202 moves to the clamping position.

[0049] Also optionally, the clamping detection sensor 207 and the detected structure 208 are arranged on the side of the rack 2051 facing the passive side component 203. When the active side component 202 moves to the initial position in the direction away from the passive side component 203, the detected structure 208 and the clamping detection sensor 207 are intertwined, and the detection signal emitted by the clamping detection sensor 207 is no longer reflected by the detected structure 208, and a reset signal is generated, thereby determining that the active side component 202 and the passive side component 203 are separated and reset to the initial set position.

[0050] Of course, the generation of the above-mentioned in-position signal and the generation of the reset in-position signal can also be achieved by utilizing the metering function of the motor module 204 itself. For example, the motor module 204 is composed of a stepper motor, and the stepper motor detects and obtains the working steps corresponding to the rotation amount, so that when the stepper motor reaches the set working steps, the gear 2052 rotates to the first set angle, and the rack 2051 moves to the clamping position, and the active side component 202 and the passive side component 203 are clamped and contacted; or the gear 2052 rotates to the second set angle, and the rack 2051 moves to the initial position, and the active side component 202 and the passive side component 203 are separated.

[0051] In the embodiment of the present invention, the heat-sealing distance adjustment plate 2032 extends in the horizontal direction, and the extension direction of the heat-sealing distance adjustment plate 2032 is arranged perpendicular to the sliding direction of the active side component 202; the two ends of the heat-sealing distance adjustment plate 2032 in the horizontal extension direction are respectively connected to the force-bearing hot press plate 2031 through a spring, and the extension direction of the spring is arranged parallel to the sliding direction of the active side component 202; of course, one or more springs can also be connected between the heat-sealing distance adjustment plate 2032 and the force-bearing hot press plate 2031, and the specific setting method will not be repeated here. By arranging the heat-sealing distance adjustment plate 2032 connected by the elastic member 2033 on the passive side component 203, when the opening of the medicine bag is squeezed by the active side component 202 and the passive side component 203 that move close to each other on one side, the elastic displacement margin generated by the heat-sealing distance adjustment plate 2032 is used to expand the opening of the medicine bag, thereby ensuring that the two sides of the opening of the medicine bag are aligned, avoiding the problem that the opening of the medicine bag is folded due to squeezing due to the single displacement of the active side component 202 on one side.

[0052] In the embodiment of the present invention, the specific working principle of the top sealing device is as follows:

[0053] Step S1. The top sealing module 200 is in the retracted setting position, and the active side component 202 and the passive side component 203 of the top sealing module 200 are not extended outward above the bag opening; the bag opening of the medicine bag to be heat-sealed is pushed to the working setting position of the top sealing module 200;

[0054] Step S2. The driving motor 301 works, and the motor output shaft of the driving motor 301 rotates around the first direction, driving the crank rod 302 to rotate in the first direction, and the swing end of the crank rod 302 swings outward, and a pulley 304 is provided at the swing end of the crank rod 302. A sliding groove 303 extending up and down is provided on the sliding bottom plate 201 of the top sealing module 200, and the pulley 304 extends into the sliding groove 303. Since the pulley 304 and the sliding groove 303 can only slide up and down relative to each other, the top sealing module 200 is driven by the crank rod 302 to slide out of the cover body 101 horizontally outward;

[0055] Step S3. After the sensor 307 corresponding to the cover body 101 extending out of the set position detects the detected portion 308 on the sliding bottom plate 201 of the top sealing module 200, it is determined that the top sealing module 200 slides horizontally to the working set position, and the drive motor 301 stops working;

[0056] At the same time, in step S2 and step S3, during the process of the top sealing module 200 moving to the working setting position, the sliding end opening of the gap between the active side component 202 and the passive side component 203 is opened toward the bag top, and the above-mentioned gap clamps the bag top therein through the sliding end opening; optionally, in step S2 and step S3, during the process of the active side component 202 and the passive side component 203 sliding toward the bag top, the top sealing guide bag structure 2025 protruding and extending from the lower part of the active side component 202 can be used to guide the top of the bag opening, so that the opening of the medicine bag can smoothly slide into the gap between the active side component 202 and the passive side component 203;

[0057] Step S4. When the top sealing module 200 is in the working setting position, the bag top is between the active side component 202 and the passive side component 203;

[0058] Step S5. The motor module 204 provided on the top sealing module 200 starts to work, and the output end of the motor module 204 drives the rack 2051 to move horizontally to one side through the gear 2052, and the rack 2051 drives the passive side component 203 to move synchronously toward the passive side component 203;

[0059] Furthermore, in step S1 to step S9, during the horizontal extension and extension movement of the entire top sealing module 200, the heating tube 2023 on the top sealing module 200 is always in an open state, the heating tube 2023 heats the top sealing mold 2022, and the temperature sensor 2026 is used to detect the temperature of the top sealing mold 2022 during the heating process, so that the heating tube 2023 stops working when the temperature is greater than the highest set temperature, and starts working when the temperature is less than the lowest set temperature, so as to perform overheating and overcooling protection;

[0060] Step S6. until an in-place signal is generated; the triggering process of the in-place signal can be as follows: the detection signal emitted by the probe of the clamping detection sensor 207 installed on the passive side component 203 is reflected by the detected structural member 208 installed on the active side component 202, and the in-place signal is triggered after receiving the reflected signal, then the active side component 202 moves to the clamping position and contacts with the passive side component 203, and an in-place signal is generated; or, the motor module 204 is a measurable stepper motor, so that when the working steps of the stepper motor reach the set value, that is, the rack moves to the set number of teeth, an in-place signal is generated; when the in-place signal is generated, it is determined that the bag mouth is clamped between the top sealing mold 2022 of the active side component 202 and the heat sealing distance adjustment plate 2032; in the above clamping process, the heated top sealing mold 2022 is used to heat-seal the bag top opening to achieve the purpose of sealing the bag top opening;

[0061] Step S7. After the active side component 202 and the passive side component 203 are clamped and generate a reset signal, the motor module 204 works in the reverse direction, and the output end of the motor module 204 drives the rack 2051 to move horizontally to the opposite side through the gear 2052, and the rack 2051 drives the passive side component 203 to move synchronously away from the passive side component 203 until a reset signal is generated; the reset signal is generated as follows: the detection signal emitted by the probe of the clamping detection sensor 207 installed on the passive side component 203 is no longer detected by the probe of the clamping detection sensor 207 installed on the active side component 202. The detected structural member 208 is reflected by the motor module 204, and a reset position signal is generated; or, the motor module 204 is a measurable stepper motor, so that when the working step number of the stepper motor reaches the set value, that is, the rack moves to the set number of teeth, a reset position signal is generated; when the reset position signal is generated, it is determined that the top sealing mold 2022 of the active side component 202 and the heat sealing distance adjustment plate 2032 are separated, then the top sealing mold 2022 of the active side component is reset to the initial set position, so that the bag mouth is separated from the active side component 202 and the passive side component 203, and the motor module 204 stops working;

[0062] Step S8. The driving motor 301 works in the reverse direction, and the motor output shaft of the driving motor 301 rotates around the second direction, driving the crank rod 302 to rotate in the second direction, and the swing end of the crank rod 302 swings inward, and the pulley 304 provided at the swing end of the crank rod 302 extends into the sliding groove provided on the sliding bottom plate 201 of the top sealing module 200. Since the pulley 304 and the sliding groove can only slide up and down relative to each other, the top sealing module 200 is driven by the crank rod 302 to slide horizontally inward into the cover body 101;

[0063] Step S9. Until the sensor 307 corresponding to the retracted setting position of the cover body 101 detects the detected part 308 on the sliding bottom plate 201 of the top sealing module 200, it is determined that the top sealing module 200 has horizontally slid to the retracted setting position, and the driving motor 301 stops working; and after the top sealing module 200 retracts to the retracted setting position, other equipment can be used to transport the sealed bag away, and then another bag top can be pushed to the working setting position of the top sealing device for subsequent heat sealing processing by the top sealing module 200.

[0064] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. Top sealing device, characterized in that: It comprises a support structure (100) and a top sealing module (200); The top sealing module (200) is slidably mounted on the support structure (100); A moving structure (300) is connected between the top sealing module (200) and the support structure (100), and the moving structure (300) drives the top sealing module (200) to slide relative to the support structure (100); The moving structure (300) comprises a driving motor (301) and a crank slider (306) transmission mechanism; The driving motor (301) is mounted on the support structure (100); The input end of the crank slider (306) transmission mechanism is connected to the power output end of the drive motor (301), and the output end of the drive slider (306) transmission mechanism is connected to the top sealing module (200), and the output power of the drive motor (301) is used to drive the top sealing module (200) to slide.

2. The top sealing device according to claim 1, characterized in that: The crank slider (306) transmission mechanism comprises: A crank rod (302), wherein a first end of the crank rod (302) is fixedly connected to a power output end of the drive motor (301); A sliding groove (303), wherein the sliding groove (303) is arranged on the top sealing module (200), and the extension direction of the sliding groove (303) is perpendicular to the sliding direction of the top sealing module (200); a pulley (304) is installed at the second end of the crank rod (302), and the pulley (304) extends into the sliding groove (303).

3. The top sealing device according to claim 2, characterized in that: The support structure (100) is provided with a guide rail (305) extending in a horizontal direction, and the top sealing module (200) is provided with a sliding block (306) matching with the guide rail (305); The top sealing module (200) is provided with a sliding groove (303), the sliding groove (303) extending in a vertical direction, and the sliding groove (303) is used for relatively slidable insertion of the output end of the crank slider (306) transmission mechanism of the moving structure (300).

4. The top sealing device according to claim 3, characterized in that: The support structure (100) is provided with a sensor (307), and the sensor (307) has a probe for emitting a detection signal; The top sealing module (200) is provided with a detected part (308), and the detected part (308) is arranged on the probe signal transmitting side of the sensor (307) on the moving path of the top sealing module (200), and is used for, after the top sealing module (200) moves to a set position, the detection signal emitted by the sensor (307) is reflected by the detected part (308) and received by the sensor (307) to generate a position detection signal.

5. The top sealing device according to claim 4, characterized in that: The support structure (100) comprises a cover body (101) covering the top sealing module (200), guide rails (305) are respectively provided on opposite sides of the cover body (101), and the guide rails (305) are arranged at the bottom of the cover body (101); A side wall of the cover body (101) on which the guide rail (305) is provided is a first side wall; Two sensors (307) are provided on the outer wall surface of the first side wall; The top sealing module (200) is provided with a structural member for triggering detection by a sensor (307); At least part of the structural member constitutes the detected portion (308); Preferably, the two sensors (307) are respectively arranged at two opposite ends of the first side wall.

6. The top sealing device according to claim 3, characterized in that: Two baffles (3031) are arranged on the lower side of the top sealing module (200), and the two baffles (3031) are arranged at intervals along the extension direction of the guide rail (305), and the gap between the two baffles (3031) constitutes the sliding groove (303); A pulley (304) is provided at the output end of the crank slider (306) transmission mechanism, the pulley (304) is inserted into the sliding groove (303), and the outer peripheral surface of the pulley (304) is slidably connected to the opposite sides of the two baffles (3031); The lower ends of the two baffles (3031) are connected via the connecting plate (3032) (105) and are used to seal the lower end of the sliding groove (303).

7. The top sealing device according to any one of claims 1 to 6, characterized in that: The top sealing module (200) comprises: A sliding base plate (201), wherein two opposite sides of the sliding base plate (201) are respectively provided with sliding blocks (306), and the sliding blocks (306) are slidably connected to the guide rails (305); The active side component (202) and the passive side component (203) are arranged on the sliding bottom plate (201) in a relative manner and are used to heat-seal the top of the medicine bag extending into the gap between the two. A motor module (204), wherein an output end of the motor module (204) is connected to the active side component (202) via a transmission gear (2052) group (205), and is used to drive the active side component (202) to approach or move away from the passive side component (203).

8. The top sealing device according to claim 7, characterized in that: The active side component (202) comprises: A fixed plate (2021), the fixed plate (2021) being relatively slidably mounted on the sliding bottom plate (201), a top sealing mold (2022) being mounted on the side of the fixed plate (2021) facing the passive side component (203); a heating tube (2023) being arranged in the top sealing mold (2022); and a heat insulation plate (2024) being arranged between the top sealing mold (2022) and the fixed plate (2021); The passive side component (203) comprises: A stress-bearing hot-pressing plate (2031), the stress-bearing hot-pressing plate (2031) is fixedly mounted on the sliding bottom plate (201) and arranged opposite to the top-sealing mold (2022); a heat-sealing distance adjustment plate (2032) is provided on the side of the stress-bearing hot-pressing plate (2031) facing the active side component (202), the heat-sealing distance adjustment plate (2032) is mounted on the stress-bearing hot-pressing plate (2031) via an elastic member (2033), the side of the heat-sealing distance adjustment plate (2032) facing the active side component (202) is a mating contact surface, and the mating contact surface is matingly fitted with the top-sealing mold (2022); Preferably, a top-sealing guide bag structure (2025) extending vertically downward is provided on the lower side of the fixed plate (2021), and the top-sealing guide bag structure (2025) and the portion of the top-sealing mold (2022) facing the passive side component (203) are in the same vertical plane.

9. The top sealing device according to claim 7, characterized in that: At least two groups of active side components (202) and passive side components (203) are arranged in sequence on the lower side of the sliding bottom plate (201); The transmission gear (2052) set (205) includes a rack (2051) and a gear (2052) meshing with each other; The rack (2051) is fixedly connected to each active component, and the gear (2052) is fixedly connected to the output end of the motor module (204); The rack (2051) extends in the direction in which the active side component (202) and the passive side component (203) are approaching or moving away from each other, and the upper side of the rack (2051) is provided with meshing teeth arranged along the extension direction; the axis of the gear (2052) is perpendicular to the extension direction of the rack (2051), and the outer periphery of the gear (2052) is provided with mating meshing teeth, and the mating meshing teeth are in transmission meshing engagement with the meshing teeth.

10. The top sealing device according to claim 7, characterized in that: The heat-sealing distance adjustment plate (2032) extends in a horizontal direction, and the extension direction of the heat-sealing distance adjustment plate (2032) is arranged perpendicular to the sliding direction of the active side component (202); The heat sealing distance adjustment plate (2032) is connected to the stress-bearing heat pressing plate (2031) via at least one spring, and the extension direction of the spring is arranged parallel to the sliding direction of the active side component (202); Preferably, the heat sealing distance adjustment plate (2032) is connected to the stress-bearing hot pressing plate (2031) via a plurality of springs arranged at intervals; Further preferably, the heat sealing distance adjustment plate (2032) is connected to the stressed hot pressing plate (2031) via a spring at both ends and the middle of the horizontal extension direction.

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